/* ============================================================================
   SorbiTech R2 — Light editorial design system (main.css)
   Uses the LOCKED SorbiTech palette (2026-06-03) — same 10 colours as Rev1 and Rev3.
   Canonical per-colour usage rules: palette-usage-spec.md (project root).
   German chemical engineering aesthetic: precision, structure, restraint.
   Differentiation between categories is achieved through LAYOUT, not colour.
   Reference: GEA · BASF · Linde · Clariant · Alfa Laval.
   ============================================================================ */

/* ============================================================================
   WEBSITE LAYOUT STANDARD — LOCKED 2026-06-10
   Apply this to EVERY page (About, Contact, Product/System/App/Industry single,
   archive, home). Do not invent new container or width rules per page.

   1. CONTAINERS (3 tiers, all auto-scale across the 6 responsive breakpoints
      defined in responsive.css):
        .st-container          standard   1280 / 1600 / 1800
        .st-container--wide    wide       1480 / 1760 / 1960
        .st-container--narrow  narrow      780 /  940 / 1020   (rarely needed)

   2. PAGE CONTENT FILL RULE — content fills the container width:
      paragraphs, cards, grids, forms, tables ALL respect the same
      .st-container max-width. No element should be artificially narrower
      than its container unless explicitly wrapped in .r2-readable or
      .st-container--narrow.

   3. FULL-BLEED HERO BANNERS — hero photos break out of the container and
      span 100% of the viewport. Inner caption/title text stays aligned
      to the .st-container left edge via max() padding (see
      .r2-about-banner / .r2-contact-hero-banner below).
      Pattern: place the <figure class="r2-about-banner"> as a direct
      child of <main>, OUTSIDE the wrapping .st-section/.st-container.

   4. ENTITY SINGLE PAGES (product/system/application/industry) — use
      .r2-split = main column (1fr) + sticky rail (360px). Main column
      content fills available width naturally. No paragraph max-width.

   5. ABOUT + CONTACT PAGES — wrap content in
      .st-container > .st-prose.r2-about-prose. The .r2-about-prose scope
      lets all child elements fill the container; paragraphs are NOT capped
      at a narrower width.
   ============================================================================ */

:root {
  /* SorbiTech Palette — semantic names (LOCKED 2026-06-03; use these in new code) */
  --st-blue:          #2F66C4;  /* interactive workhorse */
  --st-navy:          #0F2A5C;  /* dark anchor — hero/footer */
  --st-sky:           #6FA0EF;  /* dark-surface interactive ONLY */
  --st-dark-gray:     #434343;  /* body text, all headings on light */
  --st-light-gray:    #6B6B6B;  /* captions, helper, secondary text */
  --st-hairline-gray: #D0D5DD;  /* 1px borders, dividers, structural lines */
  --st-off-white:     #F5F5F5;  /* alt-row backgrounds, panel fills */
  --st-white:         #FFFFFF;  /* substrate */
  --st-error-red:     #B91C1C;  /* errors, hazards */
  --st-green:         #1F6B3A;  /* status, availability (NEVER interactive) */
  --st-whatsapp:      #25D366;  /* scoped exception — widget WhatsApp button only */

  /* Legacy aliases — existing R2 rules don't break */
  --st-blue-900:  var(--st-navy);
  --st-blue-700:  var(--st-blue);
  --st-blue-500:  var(--st-blue);
  --st-blue-300:  var(--st-sky);
  --st-blue-50:   rgba(47, 102, 196, 0.08);  /* Blue × 8% over white */

  --st-gray-800:  var(--st-dark-gray);
  --st-gray-700:  var(--st-light-gray);   /* was #5A5A5A — collapsed into Light Gray */
  --st-gray-600:  var(--st-light-gray);
  --st-gray-400:  var(--st-hairline-gray); /* was #B0B0B0 — collapsed into Hairline */
  --st-gray-300:  var(--st-hairline-gray);
  --st-gray-200:  var(--st-hairline-gray); /* was #E8E8E8 — collapsed into Hairline */
  --st-gray-100:  var(--st-off-white);     /* deprecated — collapsed into Off-White */

  --st-error:     var(--st-error-red);

  /* Per-category emphasis (mono-blue rule — all entities use same Blue) */
  --st-accent:    var(--st-blue);
  --st-accent-2:  var(--st-blue);

  --st-font-sans:    'Saira', system-ui, -apple-system, sans-serif;
  --st-font-tagline: 'Anton', sans-serif;

  --st-container-max:    1280px;
  --st-container-narrow:  780px;  /* readable prose max */
  --st-container-wide:   1480px;

  --st-radius:    0;       /* R2 design choice: sharp corners */
  --st-radius-sm: 2px;
  --st-radius-lg: 4px;
  --st-shadow-sm: 0 1px 2px rgba(15,42,92,.06);
  --st-shadow-md: 0 10px 24px rgba(15,42,92,.10);
  --st-shadow-lg: 0 24px 56px rgba(15,42,92,.14);

  --st-transition: 200ms cubic-bezier(.2,.7,.2,1);

  --st-space-1: 4px;  --st-space-2: 8px;  --st-space-3: 12px; --st-space-4: 16px;
  --st-space-5: 24px; --st-space-6: 32px; --st-space-7: 48px; --st-space-8: 64px; --st-space-9: 96px;
}

*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--st-font-sans);
  font-weight: 400; font-size: 1rem; line-height: 1.7;
  color: var(--st-gray-800);
  background: var(--st-white);
  -webkit-font-smoothing: antialiased;
}
img, svg { display:block; max-width:100%; height:auto; }
a { color: var(--st-blue-700); text-decoration: none; transition: color var(--st-transition); }
a:hover { color: var(--st-blue-900); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }
::selection { background: rgba(47,102,196,.20); }

.sr-only { position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0; }
.st-skip-link { position:absolute; top:-100%; left:var(--st-space-4); z-index:9999; background:var(--st-blue-900); color:#fff; padding:var(--st-space-2) var(--st-space-4); font-weight:600; }
.st-skip-link:focus { top: var(--st-space-2); }
:focus-visible { outline: 2px solid var(--st-blue-500); outline-offset: 2px; }
/* V9 §14.2 Rule 3: Sky focus ring on Navy surfaces */
.r2-hero-slider :focus-visible,
.r2-featured-story :focus-visible,
.r2-problem :focus-visible,
.r2-fullbleed :focus-visible,
.r2-paramband :focus-visible,
.st-hero--hub :focus-visible,
.st-hero--capture :focus-visible,
.st-contact-cta :focus-visible,
.st-footer :focus-visible { outline-color: var(--st-sky); }

/* ── Containers (STANDARDISED) ─────────────────────────────────────────────
   All sections use .st-container (max 1280px). Prose stays readable through
   an INNER .r2-readable wrapper, not a different container width. Heroes,
   bands, related grids, footer — all align to the same 1280-px rhythm.
   ─────────────────────────────────────────────────────────────────────── */
.st-container { width:100%; max-width:var(--st-container-max); margin-inline:auto; padding-inline:var(--st-space-6); }
.st-container--narrow { max-width: var(--st-container-narrow); }
.st-container--wide { max-width: var(--st-container-wide); }
.r2-readable { max-width: var(--st-container-narrow); }
.st-main { display: block; }
.st-layout--main-aside { display:grid; grid-template-columns:1fr; gap:var(--st-space-7); }

/* ── Typography ────────────────────────────────────────────────────────────── */
h1,h2,h3,h4 { font-family:var(--st-font-sans); font-weight:600; line-height:1.18; color:var(--st-gray-800); letter-spacing:-0.015em; }
h1 { font-size: clamp(2.1rem, 4.4vw, 3rem); }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.25rem); }
h3 { font-size: 1.35rem; }
h4 { font-size: 1.125rem; }

.st-eyebrow, .st-section__label {
  display:inline-flex; align-items:center; gap:10px;
  font-size:.72rem; font-weight:600; letter-spacing:.16em; text-transform:uppercase;
  color: var(--st-blue-700);
  margin-bottom: var(--st-space-4);
}
.st-eyebrow::before, .st-section__label::before {
  content:""; width:28px; height:2px; background: var(--st-blue-500);
}
.st-eyebrow__link { color: inherit; }
.st-eyebrow__chip {
  background: var(--st-blue-50); border:1px solid var(--st-blue-300);
  color: var(--st-blue-700);
  padding: 4px 12px;
  font-weight:600; font-size:.7rem;
  letter-spacing:.12em; text-transform:uppercase;
}
.st-eyebrow__chip::before { content: none; }

/* ── Sections ──────────────────────────────────────────────────────────────── */
.st-section { padding-block: var(--st-space-9); position: relative; }
.st-section--alt { background: var(--st-off-white); }
.st-section--blue-tint { background: var(--st-blue-50); }
.st-section--engage { background: var(--st-off-white); }
.st-section__header { margin-bottom: var(--st-space-7); max-width: 760px; }
.st-section__title { font-size: clamp(1.6rem, 3vw, 2.1rem); margin-bottom: var(--st-space-4); }
.st-section__lead { font-size: 1.075rem; color: var(--st-gray-600); }
.st-section__cta { margin-top: var(--st-space-6); }

/* ── Buttons ───────────────────────────────────────────────────────────────── */
.st-btn {
  display:inline-flex; align-items:center; justify-content:center; gap:var(--st-space-2);
  font-family:var(--st-font-sans); font-size:.95rem; font-weight:600; line-height:1;
  padding:.9rem 1.6rem; border:1.5px solid transparent; border-radius:var(--st-radius);
  cursor:pointer; transition: all var(--st-transition); white-space:nowrap;
}
.st-btn--primary { background: var(--st-blue-500); border-color: var(--st-blue-500); color:#fff; }
.st-btn--primary:hover { background: var(--st-blue-700); border-color: var(--st-blue-700); color:#fff; }
.st-btn--outline { background: transparent; border-color: var(--st-gray-300); color: var(--st-gray-800); }
.st-btn--outline:hover { border-color: var(--st-blue-500); color: var(--st-blue-700); }
.st-btn--white { background:#fff; border-color:#fff; color: var(--st-blue-900); }
.st-btn--white:hover { background: var(--st-blue-500); border-color: var(--st-blue-500); color:#fff; }
.st-btn--lg { padding: 1.05rem 2.1rem; font-size: 1rem; }
.st-btn--sm { padding: .55rem 1.1rem; font-size:.85rem; }
.st-btn--full { width:100%; }

/* ════ HOMEPAGE — full-screen hero slider ════ */
.r2-hero-slider { position:relative; height: 100vh; min-height:600px; max-height: 920px; overflow:hidden; background: var(--st-blue-900); }
.r2-slide { position:absolute; inset:0; opacity:0; visibility:hidden; transition: opacity .9s ease; }
.r2-slide.is-active { opacity:1; visibility:visible; z-index:1; }
.r2-slide__media { position:absolute; inset:0; }
.r2-slide__media img { width:100%; height:100%; object-fit:cover; }
.r2-slide__media::after {
  content:""; position:absolute; inset:0;
  background:
    linear-gradient(95deg, rgba(10,20,46,.92) 0%, rgba(15,42,92,.78) 38%, rgba(15,42,92,.45) 75%, rgba(15,42,92,.30) 100%),
    linear-gradient(0deg, rgba(10,20,46,.55), transparent 55%);
}
.r2-slide__content { position:relative; z-index:2; height:100%; display:flex; align-items:center; }
.r2-slide__inner { max-width: 700px; min-height: clamp(320px, 50vh, 460px); }
.r2-slide__eyebrow { display:inline-flex; align-items:center; gap:10px; font-size:.78rem; font-weight:600; letter-spacing:.2em; text-transform:uppercase; color: var(--st-blue-300); margin-bottom: var(--st-space-5); }
.r2-slide__eyebrow::before { content:""; width:38px; height:2px; background: var(--st-blue-500); }
.r2-slide__title { color:#fff; font-size: clamp(2.4rem, 5.5vw, 4rem); line-height:1.06; margin-bottom: var(--st-space-5); letter-spacing:-0.022em; }
.r2-slide__text { color: rgba(255,255,255,.88); font-size: clamp(1.05rem,1.55vw,1.25rem); line-height:1.65; margin-bottom: var(--st-space-6); max-width: 580px; }
.r2-slide__actions { display:flex; flex-wrap:wrap; gap: var(--st-space-3); }
.r2-slider__dots { position:absolute; left:0; right:0; bottom: var(--st-space-7); z-index:5; display:flex; justify-content:center; gap: var(--st-space-2); }
.r2-slider__dot { width:42px; height:3px; background: rgba(255,255,255,.30); border:none; padding:0; cursor:pointer; transition: background var(--st-transition); }
.r2-slider__dot.is-active { background: var(--st-blue-300); }
.r2-slider__arrow { position:absolute; top:50%; transform:translateY(-50%); z-index:5; width:54px; height:54px; border:1px solid rgba(255,255,255,.3); background: rgba(15,42,92,.20); color:#fff; display:flex; align-items:center; justify-content:center; -webkit-backdrop-filter:blur(4px); backdrop-filter:blur(4px); transition: all var(--st-transition); }
.r2-slider__arrow:hover { background: var(--st-blue-500); border-color: var(--st-blue-500); }
.r2-slider__arrow--prev { left: var(--st-space-5); }
.r2-slider__arrow--next { right: var(--st-space-5); }
@media (max-width: 768px){ .r2-slider__arrow { display:none; } .r2-hero-slider { height: 86vh; } }

/* ════ FOUR PILLARS (the four-entity group, featured prominently) ════ */
.r2-pillars { background: var(--st-blue-900); color:#fff; position:relative; overflow:hidden; }
.r2-pillars::before { content:""; position:absolute; inset:0; background: radial-gradient(900px 380px at 85% -10%, rgba(47,102,196,.30), transparent 60%); }
.r2-pillars .st-container { position:relative; z-index:1; }
.r2-pillars__head { max-width:680px; margin-bottom: var(--st-space-7); }
.r2-pillars__head .st-eyebrow { color: var(--st-blue-300); }
.r2-pillars__head .st-eyebrow::before { background: var(--st-blue-300); }
.r2-pillars__title { color:#fff; }
.r2-pillars__lead { color: rgba(255,255,255,.78); font-size:1.1rem; margin-top: var(--st-space-3); }
.r2-pillars__grid { display:grid; grid-template-columns: repeat(4, 1fr); gap:1px; background: rgba(255,255,255,.10); border:1px solid rgba(255,255,255,.10); }
@media (max-width: 900px){ .r2-pillars__grid { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 520px){ .r2-pillars__grid { grid-template-columns: 1fr; } }
.r2-pillar { background: var(--st-navy); padding: var(--st-space-7) var(--st-space-6); transition: background var(--st-transition); position:relative; }
/* Hover tint = Blue × 15% over Navy → reinforces "Blue = clickable" without a new hex */
.r2-pillar:hover { background-color: var(--st-navy); background-image: linear-gradient(rgba(47,102,196,.15), rgba(47,102,196,.15)); }
.r2-pillar__num { font-size:.78rem; font-weight:600; letter-spacing:.16em; color: var(--st-sky); }
.r2-pillar__name { font-size:1.6rem; font-weight:600; color:#fff; margin: var(--st-space-4) 0 var(--st-space-1); letter-spacing:-0.01em; }
.r2-pillar__role { display:block; font-size:.72rem; font-weight:600; letter-spacing:.14em; text-transform:uppercase; color: var(--st-sky); }
.r2-pillar__desc { font-size:.92rem; color: rgba(255,255,255,.72); line-height:1.6; margin-top: var(--st-space-4); }
.r2-pillar__link { display:inline-flex; align-items:center; gap:6px; margin-top: var(--st-space-5); font-size:.8rem; font-weight:600; letter-spacing:.08em; text-transform:uppercase; color:#fff; }
.r2-pillar__link::after { content:"→"; transition: transform var(--st-transition); }
.r2-pillar:hover .r2-pillar__link::after { transform: translateX(4px); }
/* Current-entity tile: same Blue × 15% tint per palette spec ("current-entity badge tint") */
.r2-pillar--sorbitech { background-color: var(--st-navy); background-image: linear-gradient(rgba(47,102,196,.15), rgba(47,102,196,.15)); }

/* old .r2-entity-strip removed — section deleted from homepage (content lives on About page only) */

/* old .r2-stats removed — section was deleted from homepage */

/* ════ HERO (generic) ════ */
.st-hero { padding-block: var(--st-space-8); position:relative; }
.st-hero--entity { background: var(--st-off-white); border-bottom: 3px solid var(--st-blue-500); }
.st-hero--hub { background: var(--st-blue-900); color:#fff; padding-block: var(--st-space-9); }
.st-hero--hub .st-hero__title { color:#fff; }
.st-hero--hub .st-hero__lead { color: rgba(255,255,255,.78); }
.st-hero--hub .st-eyebrow { color: var(--st-blue-300); }
.st-hero--hub .st-eyebrow::before { background: var(--st-blue-300); }
.st-hero--page { background: var(--st-off-white); border-bottom:3px solid var(--st-blue-500); }
.st-hero--capture { background: var(--st-blue-900); color:#fff; }
.st-hero--capture .st-hero__title { color:#fff; }
.st-hero--capture .st-eyebrow { color: var(--st-blue-300); }
.st-hero__title { margin-bottom: var(--st-space-4); }
.st-hero__lead { font-size:1.125rem; color: var(--st-gray-600); max-width:620px; margin-bottom: var(--st-space-6); }
.st-hero__actions { display:flex; flex-wrap:wrap; gap: var(--st-space-3); }

/* ════ CATEGORY SIGNATURE — PRODUCT: image-banner hero ════ */
.r2-prod-hero {
  position: relative;
  min-height: 540px;
  display: flex;
  align-items: flex-end;
  color: #fff;
  overflow: hidden;
  background: var(--st-blue-900);
}
.r2-prod-hero__media { position:absolute; inset:0; z-index:0; }
.r2-prod-hero__media img { width:100%; height:100%; object-fit:cover; opacity:.55; }
.r2-prod-hero__media::after {
  content:""; position:absolute; inset:0;
  background:
    linear-gradient(180deg, rgba(10,20,46,.5) 0%, rgba(10,20,46,.78) 60%, rgba(10,20,46,.95) 100%),
    linear-gradient(95deg, rgba(15,42,92,.78), rgba(15,42,92,.10) 75%);
}
.r2-prod-hero__media--placeholder {
  background:
    repeating-linear-gradient(45deg, rgba(255,255,255,.025) 0 12px, transparent 12px 24px),
    linear-gradient(135deg, var(--st-navy), var(--st-navy));
}
.r2-prod-hero__inner { position:relative; z-index:1; width:100%; padding-block: var(--st-space-8); }
.r2-prod-hero .st-eyebrow { color: var(--st-blue-300); }
.r2-prod-hero .st-eyebrow::before { background: var(--st-blue-500); }
.r2-prod-hero .st-eyebrow__chip { background: rgba(47,102,196,.18); border-color: var(--st-blue-500); color:#fff; }
.r2-prod-hero__title { color:#fff; font-size: clamp(2rem,4.4vw,3rem); margin-bottom: var(--st-space-4); }
.r2-prod-hero__lead { color: rgba(255,255,255,.85); font-size:1.1rem; max-width:680px; margin-bottom: var(--st-space-6); }

/* Statline — used in product hero */
.r2-statline { display:flex; flex-wrap:wrap; gap: var(--st-space-7); margin-top: var(--st-space-7); padding-top: var(--st-space-5); border-top:1px solid rgba(255,255,255,.18); }
.r2-prod-hero .r2-statline { border-top-color: rgba(255,255,255,.20); }
.r2-statline__item { display:flex; flex-direction:column; gap:4px; }
.r2-statline__num { font-size:1.6rem; font-weight:600; color:#fff; letter-spacing:-0.01em; line-height:1; }
.r2-statline__label { font-size:.72rem; font-weight:600; letter-spacing:.12em; text-transform:uppercase; color: rgba(255,255,255,.7); }

/* ════ PRODUCT — split body (content + sticky spec rail) ════ */
.r2-split { display:grid; grid-template-columns: 1fr 360px; gap: var(--st-space-8); align-items:start; }
@media (max-width: 980px){ .r2-split { grid-template-columns:1fr; } }
.r2-split__main { min-width: 0; padding-inline-end: var(--st-space-6); }
/* Prose fills the main column inside .r2-split (minus a small right gutter
   on .r2-split__main) so the right edge reaches close to the TOC instead of
   stopping at the 780px readable cap and leaving a wide empty gap. The outer
   .r2-readable cap still applies to prose NOT in a split layout. */
.r2-split__main .r2-readable { max-width: 100%; }
.r2-split__rail { position:sticky; top:90px; display:flex; flex-direction:column; gap: var(--st-space-5); }
@media (max-width: 980px){ .r2-split { gap: var(--st-space-5); } .r2-split__main { padding-inline-end: 0; } .r2-split__rail { position:static; } }

/* ── Application single: inline photo floated right inside body prose so the
   first paragraph wraps around it. Collapses to full-width block on tablet. ── */
.r2-app-inline-photo {
    float: right;
    width: 45%;
    max-width: 460px;
    margin: 0 0 var(--st-space-4) var(--st-space-5);
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--st-hairline-gray);
    background: var(--st-off-white);
    shape-outside: margin-box;
}
.r2-app-inline-photo picture, .r2-app-inline-photo img { display: block; width: 100%; height: auto; }
@media (max-width: 780px) {
    .r2-app-inline-photo { float: none; width: 100%; max-width: none; margin: 0 0 var(--st-space-5) 0; }
}

/* ════ CATEGORY SIGNATURE — SYSTEM: parameter band + train ════ */
.r2-paramband { background: var(--st-blue-900); color:#fff; padding-block: var(--st-space-7); }
.r2-paramband__grid { display:grid; grid-template-columns: repeat(auto-fit, minmax(200px,1fr)); gap:1px; background: rgba(255,255,255,.10); }
.r2-paramband__item { background: var(--st-blue-900); padding: var(--st-space-5) var(--st-space-6); }
.r2-paramband__label { display:block; font-size:.7rem; font-weight:600; letter-spacing:.14em; text-transform:uppercase; color: var(--st-blue-300); margin-bottom: var(--st-space-2); }
.r2-paramband__value { font-size:1.05rem; font-weight:600; color:#fff; }
/* ════ TREATMENT TRAIN — V9 §14.5 ════
   Navy rounded-square bubbles · SVG connectors (Hairline Gray line + Dark Gray filled-triangle arrowhead)
   Step number = small upper-left badge · Labels below bubble · Inlet/outlet labels at ends
   1px Hairline Gray frame around full diagram · Active step = 3px Blue ring (product/system pages only) */
.r2-train-diagram {
  border: 1px solid var(--st-hairline-gray);
  padding: var(--st-space-6) var(--st-space-5);
  padding-top: calc(var(--st-space-6) + 12px);
  position: relative;
  overflow-x: auto;
  margin-top: var(--st-space-6);
  background: var(--st-white);
}
.r2-train-diagram__label {
  position: absolute; top: -10px; left: var(--st-space-5);
  background: var(--st-white);
  padding: 0 var(--st-space-2);
  font-size: .62rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase;
  color: var(--st-dark-gray);
}
.r2-train-diagram__flow {
  display: flex;
  align-items: flex-start;
  gap: 0;
}
.r2-train-diagram__endpoint {
  font-size: .7rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase;
  color: var(--st-light-gray);
  white-space: nowrap;
  flex-shrink: 0;
  padding-top: 30px; /* align text-center with 80px bubble center */
  padding-inline: var(--st-space-3);
}
.r2-train-diagram__step-col {
  display: flex; flex-direction: column; align-items: center;
  gap: var(--st-space-3);
  flex-shrink: 0;
  min-width: 100px; max-width: 130px;
}
.r2-train-diagram__bubble {
  position: relative;
  width: 80px; height: 80px;
  background: var(--st-navy);
  border-radius: 4px;
  flex-shrink: 0;
}
.r2-train-diagram__bubble--active {
  outline: 3px solid var(--st-blue);
  outline-offset: 3px;
}
.r2-train-diagram__num {
  position: absolute;
  top: 7px; left: 9px;
  font-size: .6rem; font-weight: 500; font-family: var(--st-font-sans);
  color: rgba(255,255,255,.65);
  letter-spacing: .04em;
}
.r2-train-diagram__step-label {
  font-size: .88rem; font-weight: 600;
  color: var(--st-dark-gray);
  text-align: center;
  line-height: 1.3;
}
.r2-train-diagram__step-sub {
  font-size: .7rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: .04em;
  color: var(--st-dark-gray);
  text-align: center;
  margin-top: -6px;
}
.r2-train-diagram__conn-col {
  flex: 1; min-width: 28px;
  height: 80px; /* match bubble height */
  display: flex; align-items: center;
  flex-shrink: 1;
}
.r2-train-diagram__conn-col svg { width: 100%; height: 20px; display: block; }
@media (max-width: 768px) {
  .r2-train-diagram__flow { flex-direction: column; align-items: center; gap: var(--st-space-2); }
  .r2-train-diagram__conn-col { width: 20px; height: 32px; transform: rotate(90deg); flex: none; min-width: unset; }
  .r2-train-diagram__endpoint { padding-top: 0; padding-block: var(--st-space-2); }
}

/* ════ CATEGORY SIGNATURE — APPLICATION: problem band + numbered steps ════ */
.r2-problem { background: var(--st-blue-900); color:#fff; padding-block: var(--st-space-8); position:relative; overflow:hidden; }
.r2-problem::before { content:""; position:absolute; inset:0; background: radial-gradient(720px 320px at 90% 0%, rgba(47,102,196,.30), transparent 60%); }
.r2-problem .st-container { position:relative; z-index:1; }
.r2-problem__label { font-size:.74rem; font-weight:600; letter-spacing:.16em; text-transform:uppercase; color: var(--st-blue-300); margin-bottom: var(--st-space-3); }
.r2-problem__text { font-size: clamp(1.2rem,2vw,1.55rem); color:#fff; line-height:1.5; max-width: 820px; }
.r2-steps { counter-reset: step; display:flex; flex-direction:column; gap: var(--st-space-5); max-width: 820px; }
.r2-step { display:grid; grid-template-columns: 64px 1fr; gap: var(--st-space-5); align-items:start; }
.r2-step__num { width:60px; height:60px; border:2px solid var(--st-blue-500); color: var(--st-blue-700); display:flex; align-items:center; justify-content:center; font-size:1.3rem; font-weight:600; background:#fff; }
.r2-step__num::before { counter-increment: step; content: counter(step,decimal-leading-zero); }
.r2-step__title { font-size:1.2rem; font-weight:600; color: var(--st-gray-800); margin-bottom: var(--st-space-2); }
.r2-step__body { font-size:.98rem; color: var(--st-gray-600); }

/* ════ CATEGORY SIGNATURE — INDUSTRY: full-bleed hero + showcase ════ */
.r2-fullbleed { position:relative; min-height: 60vh; display:flex; align-items:flex-end; color:#fff; overflow:hidden; background: var(--st-blue-900); }
.r2-fullbleed__media { position:absolute; inset:0; }
.r2-fullbleed__media img { width:100%; height:100%; object-fit:cover; opacity:.55; }
.r2-fullbleed__media::after {
  content:""; position:absolute; inset:0;
  background: linear-gradient(0deg, rgba(10,20,46,.95), rgba(15,42,92,.55) 55%, rgba(15,42,92,.22) 100%);
}
.r2-fullbleed__inner { position:relative; z-index:2; width:100%; padding-block: var(--st-space-8); }
.r2-fullbleed__eyebrow { display:inline-flex; gap:10px; align-items:center; font-size:.76rem; font-weight:600; letter-spacing:.18em; text-transform:uppercase; color: var(--st-blue-300); margin-bottom: var(--st-space-4); }
.r2-fullbleed__eyebrow::before { content:""; width:30px; height:2px; background: var(--st-blue-500); }
.r2-fullbleed__title { color:#fff; font-size: clamp(2.2rem,4.8vw,3.6rem); margin-bottom: var(--st-space-4); }
.r2-fullbleed__lead { color: rgba(255,255,255,.9); font-size:1.15rem; max-width: 700px; margin-bottom: var(--st-space-6); }
.r2-showcase { display:grid; grid-template-columns: 1fr 1fr; gap: var(--st-space-8); }
@media (max-width: 880px){ .r2-showcase { grid-template-columns:1fr; } }
.r2-showcase__col h3 { font-size:1.15rem; padding-bottom: var(--st-space-3); border-bottom:2px solid var(--st-blue-500); margin-bottom: var(--st-space-5); }
.r2-sectorstats { display:grid; grid-template-columns: repeat(auto-fit,minmax(160px,1fr)); gap: var(--st-space-6); border-top:1px solid var(--st-gray-300); border-bottom:1px solid var(--st-gray-300); padding-block: var(--st-space-6); }
.r2-sectorstat__num { display:block; font-size:2.2rem; font-weight:600; color: var(--st-blue-700); letter-spacing:-0.02em; line-height:1; }
.r2-sectorstat__label { display:block; font-size:.85rem; color: var(--st-gray-600); margin-top: var(--st-space-1); }

/* ════ CARDS (engineering-catalog) ════ */
.st-card-grid { display:grid; grid-template-columns: repeat(auto-fill, minmax(300px,1fr)); gap: var(--st-space-5); }
.st-card-grid--3col { grid-template-columns: repeat(auto-fill, minmax(300px,1fr)); }
.st-card-grid--2col { grid-template-columns: repeat(auto-fill, minmax(420px,1fr)); }
.st-card-grid--industries { grid-template-columns: repeat(auto-fill, minmax(220px,1fr)); gap: var(--st-space-3); }

.st-card {
  background:#fff; border:1px solid var(--st-gray-300);
  overflow:hidden; display:flex; flex-direction:column;
  transition: transform var(--st-transition), box-shadow var(--st-transition), border-color var(--st-transition);
}
.st-card:hover { transform: translateY(-3px); box-shadow: var(--st-shadow-md); border-color: var(--st-blue-300); }
.st-card__image { position:relative; aspect-ratio:16/10; overflow:hidden; background: var(--st-off-white); display:block; }
.st-card__image img { width:100%; height:100%; object-fit:cover; transition: transform .7s cubic-bezier(.2,.7,.2,1); }
.st-card:hover .st-card__image img { transform: scale(1.04); }
.st-card__chip { position:absolute; left:14px; top:14px; z-index:2; font-size:.66rem; font-weight:600; letter-spacing:.1em; text-transform:uppercase; background:#fff; color: var(--st-blue-700); padding:5px 10px; border:1px solid var(--st-blue-300); }
.st-card__placeholder { position:absolute; inset:0; display:flex; align-items:center; justify-content:center; font-size:3.5rem; font-weight:600; color: rgba(255,255,255,.65); background: linear-gradient(135deg, var(--st-blue-900), var(--st-blue-700)); }
.st-card__body { padding: 22px; flex:1; display:flex; flex-direction:column; }
.st-card__title { font-size:1.1rem; margin-bottom:8px; line-height:1.3; }
.st-card__title a { color: var(--st-gray-800); }
.st-card:hover .st-card__title a { color: var(--st-blue-700); }
.st-card__excerpt { font-size:.9rem; color: var(--st-gray-600); flex:1; margin-bottom: var(--st-space-3); }
.st-card__spec { font-size:.78rem; color: var(--st-gray-600); margin-bottom: var(--st-space-3); padding: 6px 0; border-top:1px solid var(--st-gray-200); border-bottom:1px solid var(--st-gray-200); }
.st-card__footer { display:flex; align-items:center; justify-content:space-between; padding-top: var(--st-space-3); border-top:1px solid var(--st-gray-200); margin-top:auto; }
.st-card__count { font-size:.72rem; font-weight:600; letter-spacing:.06em; text-transform:uppercase; color: var(--st-gray-600); }
.st-card__link { font-size:.82rem; font-weight:600; letter-spacing:.04em; color: var(--st-blue-700); display:inline-flex; align-items:center; gap:6px; text-transform:uppercase; }
.st-card__link::after { content:"→"; transition: transform var(--st-transition); }
.st-card:hover .st-card__link::after { transform: translateX(4px); }
.st-card__actions { display:flex; gap: var(--st-space-2); flex-wrap:wrap; margin-top:auto; padding-top: var(--st-space-3); }
.st-card--family, .st-card--category { position:relative; }
.st-card--family::before, .st-card--category::before { content:""; position:absolute; left:0; right:0; top:0; height:3px; background: var(--st-blue-500); z-index:1; }

/* ════ CATEGORY / INDUSTRY ICONS (SVG, plugin assets) ════
   Navy line icons on white surfaces; inverted to white on dark hub heroes. */
.st-cat-icon { display:block; width:48px; height:48px; flex-shrink:0; }
.st-cat-icon--card { width:44px; height:44px; margin-bottom: var(--st-space-3); }
.st-cat-icon--hero { width:60px; height:60px; margin-bottom: var(--st-space-4); }
/* On Navy hub heroes the Navy stroke would vanish — render the icon white. */
.st-hero--hub .st-cat-icon { filter: brightness(0) invert(1); }
/* Icon + title row (used on industry / application headers) */
.st-icon-head { display:flex; align-items:center; gap: var(--st-space-4); }
.st-icon-head .st-cat-icon { margin-bottom:0; }
/* Intro band under a hub hero: short orienting paragraph with internal links */
.st-hub-intro { padding-block: var(--st-space-6); border-bottom:1px solid var(--st-hairline-gray); }
.st-hub-intro__text { max-width: 820px; font-size:1.05rem; color: var(--st-light-gray); }
.st-hub-intro__text a { color: var(--st-blue); text-decoration:underline; text-underline-offset:2px; }
.st-hub-intro__text a:hover { color: var(--st-navy); }

/* Rich editorial intro band — full HTML term description rendered below the hero.
   Used on family / category / industry tax pages where the description is long
   and carries internal links. Sits on Off-White to separate it from the cards
   below and to give the dense prose breathing room. */
.st-hub-rich-intro { background: var(--st-off-white); padding-block: var(--st-space-8); border-bottom:1px solid var(--st-hairline-gray); }
.st-hub-rich-intro__inner { max-width: 920px; margin-inline: auto; }
.st-hub-rich-intro .st-prose { color: var(--st-dark-gray); font-size: 1.02rem; line-height: 1.75; }
.st-hub-rich-intro .st-prose p { margin: 0 0 var(--st-space-4); }
.st-hub-rich-intro .st-prose p:last-child { margin-bottom: 0; }
.st-hub-rich-intro .st-prose a { color: var(--st-blue); text-decoration: underline; text-underline-offset: 2px; font-weight: 500; }
.st-hub-rich-intro .st-prose a:hover { color: var(--st-navy); }

/* ════ QUICK ANSWER — V9 §14.5 ════
   White bg + 4px Blue left rail + Blue uppercase eyebrow + Dark Gray body.
   No top/right/bottom borders on the box — only left rail. AI-citable surface. */
.st-quick-answer { padding-block: var(--st-space-6); border-bottom:1px solid var(--st-hairline-gray); }
.st-quick-answer__inner {
  background: var(--st-white);
  border-left: 4px solid var(--st-blue);
  padding: var(--st-space-5) var(--st-space-6);
  max-width: 860px;
}
.st-quick-answer__label {
  display: block;
  font-size: .7rem; font-weight: 600; letter-spacing: .18em; text-transform: uppercase;
  color: var(--st-blue);
  margin-bottom: var(--st-space-3);
}
.st-quick-answer__text {
  font-size: 1.1rem; line-height: 1.65;
  color: var(--st-dark-gray);
  font-weight: 500;
}

/* ════ QUALIFICATION STRIP — V9 §14.5 ════
   Light: Off-White bg + White chips + 1px Hairline Gray border + Dark Gray text + Blue download links.
   Dark: Navy bg + transparent chips + 1px Sky border + White text + Sky links. */
.st-qualification { background: var(--st-off-white); border-bottom:1px solid var(--st-hairline-gray); padding-block: var(--st-space-6); }
.st-qualification__inner { display:flex; gap: var(--st-space-6); align-items:flex-start; flex-wrap:wrap; }
.st-qualification__label { font-size:.72rem; font-weight:600; letter-spacing:.14em; text-transform:uppercase; color: var(--st-dark-gray); min-width:120px; padding-top:4px; }
.st-qualification__grid { flex:1; display:flex; flex-wrap:wrap; gap: var(--st-space-3); }
/* Chip — White bg + 1px Hairline Gray border */
.st-qual-item { min-width:170px; background: var(--st-white); border:1px solid var(--st-hairline-gray); padding: var(--st-space-3) var(--st-space-4); }
.st-qual-item__heading { display:block; font-size:.66rem; font-weight:600; letter-spacing:.1em; text-transform:uppercase; color: var(--st-dark-gray); margin-bottom: var(--st-space-1); }
.st-qual-item__value { font-size:.9rem; color: var(--st-dark-gray); }
.st-qual-item__links { display:flex; flex-direction:column; gap: var(--st-space-2); }
/* Blue download links — underlined per V9 §14.2 Rule 4 */
.st-doc-link { display:inline-flex; align-items:center; gap: var(--st-space-2); font-size:.86rem; font-weight:600; color: var(--st-blue); text-decoration:underline; text-underline-offset:2px; background:transparent; border:0; padding:0; cursor:pointer; font-family:inherit; text-align:left; }
.st-doc-link:hover { color: var(--st-navy); }
.st-doc-link:focus-visible { outline:2px solid var(--st-blue); outline-offset:2px; border-radius:2px; }
.st-doc-link__icon { flex-shrink:0; }
.st-doc-link__icon path { fill: currentColor; }

/* Dark variant — Navy bg + transparent chips + Sky border + White/Sky text */
.st-qualification--dark { background: var(--st-navy); border-bottom-color: rgba(255,255,255,.10); }
.st-qualification--dark .st-qualification__label { color: rgba(255,255,255,.78); }
.st-qualification--dark .st-qual-item { background: transparent; border-color: var(--st-sky); }
.st-qualification--dark .st-qual-item__heading { color: rgba(255,255,255,.78); }
.st-qualification--dark .st-qual-item__value { color: var(--st-white); }
.st-qualification--dark .st-doc-link { color: var(--st-sky); }
.st-qualification--dark .st-doc-link:hover { color: var(--st-white); }

/* ════ SPEC CARD ════ */
.st-spec-card { border:1px solid var(--st-gray-300); overflow:hidden; background:#fff; box-shadow: var(--st-shadow-sm); }
.st-spec-card__title { margin:0; padding:14px 20px; font-size:.92rem; font-weight:600; color:#fff; background: var(--st-blue-900); letter-spacing:.02em; }
.st-spec-table { width:100%; border-collapse:collapse; }
.st-spec-table th, .st-spec-table td { padding:11px 20px; font-size:.875rem; border-bottom:1px solid var(--st-gray-200); vertical-align:top; text-align:left; }
.st-spec-table th { font-weight:500; color: var(--st-gray-600); width:54%; background: var(--st-off-white); }
.st-spec-table td { font-weight:600; color: var(--st-gray-800); }
.st-spec-table tr:last-child th, .st-spec-table tr:last-child td { border-bottom:0; }

/* ════ AVAILABLE-AS ════ */
.st-section--available-as { padding-block: var(--st-space-7); border-bottom:1px solid var(--st-gray-200); }
.st-available-as { display:flex; align-items:center; flex-wrap:wrap; gap: var(--st-space-4); }
.st-available-as__label { font-size:.72rem; font-weight:600; letter-spacing:.12em; text-transform:uppercase; color: var(--st-gray-600); }
.st-available-as__tags { display:flex; flex-wrap:wrap; gap: var(--st-space-2); }
.st-tag { display:inline-block; padding:.5rem 1rem; font-size:.85rem; font-weight:600; }
.st-tag--engagement { background:#fff; border:1.5px solid var(--st-gray-300); color: var(--st-gray-800); }
.st-tag--engagement:hover { border-color: var(--st-blue-500); color: var(--st-blue-700); }
.st-available-as__note { font-size:.88rem; color: var(--st-gray-600); }
.st-available-as__cta-note { font-size:.85rem; }

/* ════ PROOF BLOCK ════ */
.st-section--proof { padding-block: var(--st-space-7); }
.st-proof-block { border-left:3px solid var(--st-blue-500); padding: var(--st-space-2) 0 var(--st-space-2) var(--st-space-6); max-width: 820px; }
.st-proof-block__text { font-size:1.25rem; color: var(--st-gray-800); font-style:italic; line-height:1.5; margin-bottom: var(--st-space-3); }
.st-proof-block__note { font-size:.8rem; color: var(--st-gray-600); }

/* ════ CROSS-BRAND ════ */
.st-section--brand-link { padding-block: var(--st-space-6); }
.st-brand-link { display:flex; align-items:center; justify-content:space-between; gap: var(--st-space-5); padding: var(--st-space-5) var(--st-space-6); border:1px solid var(--st-gray-300); background:#fff; }
.st-brand-link:hover { border-color: var(--st-blue-500); }
.st-brand-link__inner { display:flex; flex-direction:column; gap: var(--st-space-1); }
.st-brand-link__name { font-weight:600; color: var(--st-gray-800); }
.st-brand-link__context { font-size:.88rem; color: var(--st-gray-600); }

/* ════ RELATED CONTENT — engineering catalog ════ */
.st-section--related { padding-block: var(--st-space-8); border-top:1px solid var(--st-gray-200); }
.st-section--related + .st-section--related { border-top:0; padding-top:0; }
.st-related__heading {
  display:flex; align-items:baseline; gap:14px; margin-bottom: var(--st-space-6);
  font-size:1.4rem; color: var(--st-gray-800);
  padding-bottom: var(--st-space-3); border-bottom:2px solid var(--st-blue-500);
}
.st-related__heading::before {
  font-size:.78rem; font-weight:600; letter-spacing:.16em; color: var(--st-blue-700);
  content: attr(data-label);
}
.st-related__grid { display:grid; grid-template-columns: repeat(auto-fill, minmax(290px,1fr)); gap: var(--st-space-5); }

/* ════ CASE REFERENCES ════ */
.st-section--references { padding-block: var(--st-space-8); background: var(--st-off-white); }
.st-reference-cards { display:grid; grid-template-columns: repeat(auto-fill, minmax(300px,1fr)); gap: var(--st-space-5); margin-top: var(--st-space-5); }
.st-reference-card { border:1px solid var(--st-gray-300); background:#fff; overflow:hidden; transition: transform var(--st-transition), box-shadow var(--st-transition); }
.st-reference-card:hover { transform: translateY(-3px); box-shadow: var(--st-shadow-md); }
.st-reference-card__body { padding: var(--st-space-5); }
.st-reference-card__title { font-size:1.05rem; margin-bottom: var(--st-space-3); }
.st-reference-card__title a { color: var(--st-gray-800); }
.st-reference-card__title a:hover { color: var(--st-blue-700); }
.st-reference-card__excerpt { font-size:.88rem; color: var(--st-gray-600); margin-bottom: var(--st-space-3); }
.st-reference-card__link { font-size:.82rem; font-weight:600; color: var(--st-blue-700); text-transform:uppercase; letter-spacing:.05em; }

/* ════ CONTACT CTA ════ */
.st-contact-cta { padding-block: var(--st-space-9); background: var(--st-blue-900); position:relative; overflow:hidden; }
.st-contact-cta::before { content:""; position:absolute; inset:0; background: radial-gradient(800px 360px at 0% 0%, rgba(47,102,196,.30), transparent 60%); }
.st-contact-cta__inner { position:relative; display:flex; align-items:center; justify-content:space-between; gap: var(--st-space-6); flex-wrap:wrap; }
.st-contact-cta__heading { color:#fff; font-size: clamp(1.5rem,3vw,2.1rem); margin-bottom: var(--st-space-2); }
.st-contact-cta__sub { color: rgba(255,255,255,.78); font-size:1rem; }
.st-contact-cta__actions { display:flex; flex-direction:column; gap: var(--st-space-3); align-items:flex-start; }
.st-contact-cta__direct-link { color: var(--st-blue-300); font-size:.9rem; }

/* ════ OEM LEGAL DISCLAIMER — V9 §14.5 ════
   Off-White bg + 4px Navy left rail + Light Gray uppercase eyebrow + Dark Gray body.
   Navy rail = formal/legal (vs Blue rail = action/offer). Matches Alfa Laval / GEA / Honeywell UOP. */
.st-oem-disclaimer { background: var(--st-off-white); border:1px solid var(--st-hairline-gray); border-left:4px solid var(--st-navy); padding: var(--st-space-5) var(--st-space-6); margin-block: var(--st-space-6); }
.st-oem-disclaimer__eyebrow {
  display: block;
  font-size: .62rem; font-weight: 600; letter-spacing: .16em; text-transform: uppercase;
  color: var(--st-light-gray);
  margin-bottom: var(--st-space-3);
}
.st-oem-disclaimer__text { font-size:.86rem; color: var(--st-dark-gray); line-height:1.6; }

/* ════ COMPATIBILITY & SCOPE BLOCK — V9 §14.5 ════
   White bg + 4px Blue left rail + Blue uppercase eyebrow + Dark Gray body.
   Blue rail = offer/action (vs Navy rail = legal/formal on OEM disclaimer). */
.st-compat-scope {
  background: var(--st-white);
  border-left: 4px solid var(--st-blue);
  padding: var(--st-space-5) var(--st-space-6);
  margin-block: var(--st-space-5);
}
.st-compat-scope__eyebrow {
  display: block;
  font-size: .62rem; font-weight: 600; letter-spacing: .16em; text-transform: uppercase;
  color: var(--st-blue);
  margin-bottom: var(--st-space-3);
}
.st-compat-scope__body { font-size: 1rem; color: var(--st-dark-gray); line-height: 1.65; }
.st-compat-scope__body p { margin-bottom: var(--st-space-3); }
.st-compat-scope__body p:last-child { margin-bottom: 0; }
.st-compat-scope__cta { margin-top: var(--st-space-4); }

.st-callout { border-left:3px solid var(--st-blue-500); background: var(--st-blue-50); padding: var(--st-space-5) var(--st-space-6); }
.st-callout--scope { border-color: var(--st-gray-600); background: var(--st-off-white); }

/* ════ BREADCRUMB ════ */
.st-breadcrumb { background:#fff; border-bottom:1px solid var(--st-gray-200); padding-block: var(--st-space-3); }
.st-breadcrumb--funnel { background: var(--st-blue-900); }
.st-breadcrumb--funnel a { color: var(--st-blue-300); }
.st-breadcrumb__list { display:flex; flex-wrap:wrap; gap: var(--st-space-2); align-items:center; font-size:.82rem; }
.st-breadcrumb__item { display:flex; align-items:center; gap: var(--st-space-2); color: var(--st-gray-600); }
.st-breadcrumb__item::after { content:"/"; color: var(--st-gray-300); }
.st-breadcrumb__item:last-child::after { display:none; }
.st-breadcrumb__item--current { color: var(--st-gray-800); font-weight:600; }
.st-breadcrumb__link { color: var(--st-gray-600); }
.st-breadcrumb__link:hover { color: var(--st-blue-700); }

/* ════ PROSE ════ */
.st-prose { color: var(--st-gray-800); font-size:1.05rem; }
.st-prose h2 { font-size:1.6rem; margin:2.6rem 0 1rem; color: var(--st-gray-800); }
.st-prose h3 { font-size:1.25rem; margin:2rem 0 .75rem; color: var(--st-gray-800); }
.st-prose p { margin-bottom:1.3rem; }
.st-prose ul, .st-prose ol { padding-left:1.4rem; margin-bottom:1.3rem; }
.st-prose ul { list-style:disc; } .st-prose ol { list-style:decimal; }
.st-prose li { margin-bottom:.5rem; } .st-prose li::marker { color: var(--st-blue-500); }
.st-prose a { color: var(--st-blue-700); text-decoration:underline; text-underline-offset:3px; }
.st-prose strong { color: var(--st-gray-800); font-weight:600; }
.st-prose table { width:100%; border-collapse:collapse; margin-bottom:1.5rem; font-size:.95rem; }
.st-prose th { background: var(--st-blue-900); color:#fff; padding:.65rem .85rem; text-align:left; font-weight:600; }
.st-prose td { padding:.6rem .85rem; border-bottom:1px solid var(--st-gray-200); }
.st-prose tr:nth-child(even) td { background: var(--st-off-white); }

/* ════ APPLICATIONS ARCHIVE ════ */
.st-list-grid { display:flex; flex-direction:column; gap: var(--st-space-4); }
.st-list-item { border-bottom:1px solid var(--st-gray-300); padding: var(--st-space-4) 0; }
.st-list-item__title { font-size:1.1rem; margin-bottom: var(--st-space-2); }
.st-list-item__title a { color: var(--st-gray-800); }
.st-list-item__title a:hover { color: var(--st-blue-700); }
.st-list-item__excerpt { font-size:.92rem; color: var(--st-gray-600); margin-bottom: var(--st-space-2); }
.st-list-item__link { font-size:.84rem; font-weight:600; color: var(--st-blue-700); }
.st-app-category { margin-bottom: var(--st-space-7); }
.st-app-category__header { margin-bottom: var(--st-space-4); padding-bottom: var(--st-space-3); border-bottom:2px solid var(--st-blue-500); }
.st-app-category__title { font-size:1.3rem; }
.st-app-category__title a { color: var(--st-gray-800); }
.st-app-category__desc { font-size:.92rem; color: var(--st-gray-600); margin-top: var(--st-space-2); }
.st-app-category__list { columns:2; gap: var(--st-space-6); }
.st-app-category__list li { break-inside:avoid; margin-bottom: var(--st-space-2); font-size:.95rem; }
.st-app-category__list a { color: var(--st-blue-700); }
@media (max-width:640px){ .st-app-category__list { columns:1; } }

/* ════ HOMEPAGE: legacy entity strip (kept for fallback) ════ */
.st-section--entity-strip { padding-block: var(--st-space-8); }
.st-entity-strip { display:grid; grid-template-columns: repeat(4,1fr); gap: var(--st-space-5); }
@media (max-width:860px){ .st-entity-strip { grid-template-columns: repeat(2,1fr); } }
@media (max-width:480px){ .st-entity-strip { grid-template-columns:1fr; } }
.st-entity-card { padding: var(--st-space-6); border:1px solid var(--st-gray-300); background:#fff; }
.st-entity-card__name { display:block; font-size:1.3rem; font-weight:600; color: var(--st-gray-800); margin-bottom:2px; }
.st-entity-card__role { display:block; font-size:.7rem; font-weight:600; letter-spacing:.1em; text-transform:uppercase; color: var(--st-blue-700); margin-bottom: var(--st-space-3); }
.st-entity-card__desc { font-size:.88rem; color: var(--st-gray-600); }

/* old .st-engage-spectrum removed — replaced by .r2-engage below */

.st-industry-card { display:flex; flex-direction:column; padding: var(--st-space-5); border:1px solid var(--st-gray-300); background:#fff; color: var(--st-gray-800); transition: all var(--st-transition); }
.st-industry-card:hover { border-color: var(--st-blue-500); transform: translateY(-3px); box-shadow: var(--st-shadow-sm); color: var(--st-gray-800); }
.st-industry-card__title { font-weight:600; font-size:1rem; color: var(--st-gray-800); margin-bottom: var(--st-space-1); }
.st-industry-card__excerpt { font-size:.82rem; color: var(--st-gray-600); flex:1; }
.st-industry-card__arrow { color: var(--st-blue-500); margin-top: var(--st-space-2); transition: transform var(--st-transition); }
.st-industry-card:hover .st-industry-card__arrow { transform: translateX(4px); }

/* ════ References list / canonical / search / article / misc ════ */
.st-references { display:flex; flex-direction:column; gap: var(--st-space-3); margin-top: var(--st-space-4); }
.st-reference-item { display:flex; gap: var(--st-space-3); align-items:flex-start; font-size:.95rem; color: var(--st-gray-800); padding: var(--st-space-3) var(--st-space-4); border-left:3px solid var(--st-blue-500); background: var(--st-blue-50); }
.st-reference-item__bullet { width:8px; height:8px; min-width:8px; background: var(--st-blue-500); margin-top:7px; }
.st-section--canonical-link { padding-block: var(--st-space-6); }
.st-canonical-callout { border:1px dashed var(--st-gray-300); padding: var(--st-space-5); text-align:center; }
.st-canonical-callout p { font-size:.9rem; color: var(--st-gray-600); margin-bottom: var(--st-space-3); }
.st-hero__highlight { color: var(--st-blue-500); }
.st-search-form { display:flex; gap: var(--st-space-3); margin-top: var(--st-space-5); max-width:560px; }
.st-search-form__input { flex:1; padding:.85rem 1rem; border:1.5px solid var(--st-gray-300); background:#fff; color: var(--st-gray-800); font-family:var(--st-font-sans); font-size:1rem; outline:none; }
.st-search-form__input:focus { border-color: var(--st-blue-500); }
.st-article__header { background: var(--st-off-white); border-bottom:3px solid var(--st-blue-500); padding-block: var(--st-space-7); }
.st-article__title { font-size: clamp(1.9rem,4vw,2.7rem); }
.st-article__meta { font-size:.85rem; color: var(--st-gray-600); margin-top: var(--st-space-3); }
.st-article__hero { padding-block: var(--st-space-5) 0; }
.st-article__hero img { width:100%; max-height:460px; object-fit:cover; }
.st-article__body { padding-block: var(--st-space-7); }
.st-article__tags { padding-block: var(--st-space-5); }
.st-tag-strip { display:flex; flex-wrap:wrap; gap: var(--st-space-2); }
.st-tag--article { background: var(--st-off-white); border:1px solid var(--st-gray-300); color: var(--st-gray-600); font-size:.8rem; padding:.3rem .8rem; }
.st-tag--article:hover { border-color: var(--st-blue-500); color: var(--st-blue-700); }

/* ════════════════════════════════════════════════════════════════════════════
   ENGINEERING ROW-LIST — replaces all card grids for related content
   Used on: Product / System / Application / Industry templates.
   Style: thumbnail · type chip · title · brief · key technical spec · arrow.
   Hairline-separated rows. No card containers.
   ════════════════════════════════════════════════════════════════════════════ */
.r2-rellist { padding-block: var(--st-space-7); border-top:1px solid var(--st-gray-200); }
.r2-rellist + .r2-rellist { border-top:0; padding-top:0; }
.r2-rellist__head {
  display:flex; align-items:baseline; gap:14px;
  padding-bottom: var(--st-space-4); margin-bottom: var(--st-space-4);
  border-bottom: 2px solid var(--st-blue-500);
}
.r2-rellist__label {
  font-size:.72rem; font-weight:600; letter-spacing:.16em; text-transform:uppercase;
  color: var(--st-blue-700);
}
.r2-rellist__heading {
  font-size: clamp(1.3rem, 2.4vw, 1.7rem); color: var(--st-gray-800); margin:0;
}
.r2-rellist__items { display:flex; flex-direction:column; }
.r2-rellist__item { border-bottom:1px solid var(--st-gray-200); }
.r2-rellist__item:last-child { border-bottom:0; }
.r2-rellist__row {
  display: grid;
  grid-template-columns: 56px 160px 1fr 200px 24px;
  gap: var(--st-space-5);
  align-items: center;
  padding: var(--st-space-4) 0;
  color: inherit; text-decoration: none;
  transition: background var(--st-transition);
}
.r2-rellist__row:hover { background: var(--st-off-white); color: inherit; }
.r2-rellist__index { font-size:.85rem; font-weight:600; letter-spacing:.06em; color: var(--st-gray-400); text-align:center; }
.r2-rellist__thumb { position: relative; width:160px; height:100px; overflow:hidden; background: var(--st-blue-900); }
.r2-rellist__thumb img { width:100%; height:100%; object-fit:cover; transition: transform .55s cubic-bezier(.2,.7,.2,1); }
.r2-rellist__row:hover .r2-rellist__thumb img { transform: scale(1.06); }
.r2-rellist__thumb-placeholder { position:absolute; inset:0; display:flex; align-items:center; justify-content:center; color: rgba(255,255,255,.7); font-size:2rem; font-weight:600; background: linear-gradient(135deg, var(--st-blue-900), var(--st-blue-700)); }
.r2-rellist__content { display:flex; flex-direction:column; gap:5px; min-width:0; }
.r2-rellist__chip {
  font-size:.62rem; font-weight:600; letter-spacing:.14em; text-transform:uppercase;
  color: var(--st-blue-700);
}
.r2-rellist__title { font-size:1.075rem; font-weight:600; color: var(--st-gray-800); line-height:1.3; transition: color var(--st-transition); }
.r2-rellist__row:hover .r2-rellist__title { color: var(--st-blue-700); }
.r2-rellist__excerpt { font-size:.875rem; color: var(--st-gray-600); line-height:1.5;
  display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden;
}
.r2-rellist__spec {
  display:flex; flex-direction:column; gap:4px; text-align:right;
  padding-left: var(--st-space-4); border-left:1px solid var(--st-gray-200);
}
.r2-rellist__spec-label { font-size:.66rem; font-weight:600; letter-spacing:.12em; text-transform:uppercase; color: var(--st-gray-600); }
.r2-rellist__spec-value { font-size:1.05rem; font-weight:600; color: var(--st-blue-900); letter-spacing:-0.01em; }
.r2-rellist__arrow { color: var(--st-blue-500); font-size:1.25rem; transition: transform var(--st-transition); justify-self:end; }
.r2-rellist__row:hover .r2-rellist__arrow { transform: translateX(6px); }

@media (max-width: 900px) {
  .r2-rellist__row { grid-template-columns: 110px 1fr 24px; gap: var(--st-space-4); padding: var(--st-space-3) 0; }
  .r2-rellist__index, .r2-rellist__spec { display:none; }
  .r2-rellist__thumb { width:110px; height:80px; }
}

/* When .r2-rellist renders INSIDE a multi-column container (e.g. the
   industry page's 2-up Complete Solutions Showcase), the full 5-column row
   (index + thumb + content + spec + arrow) can't fit — the 1fr content
   column collapses to one letter per line. Collapse to the compact
   3-column variant in that context, regardless of viewport. The full
   layout still applies in single-column placements (e.g. single-system
   "Applications This System Serves"). */
.r2-showcase .r2-rellist__row {
  grid-template-columns: 110px 1fr 24px;
  gap: var(--st-space-4);
  padding: var(--st-space-3) 0;
}
.r2-showcase .r2-rellist__index,
.r2-showcase .r2-rellist__spec { display: none; }
.r2-showcase .r2-rellist__thumb { width: 110px; height: 80px; }

/* ════════════════════════════════════════════════════════════════════════════
   CAPABILITIES MOSAIC — equal image tiles (GEA / Linde / BASF style)
   Clean grid. Works with any number of tiles (4, 6, 8, 10).
   ════════════════════════════════════════════════════════════════════════════ */
.r2-mosaic { padding-block: var(--st-space-9); }
.r2-mosaic__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--st-space-4);
}
@media (max-width: 980px) { .r2-mosaic__grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .r2-mosaic__grid { grid-template-columns: 1fr; } }

.r2-mosaic__tile {
  position: relative;
  display: block;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--st-blue-900);
  color: #fff;
  text-decoration: none;
  transition: transform var(--st-transition), box-shadow var(--st-transition);
}
.r2-mosaic__tile:hover {
  color: #fff;
  transform: translateY(-4px);
  box-shadow: var(--st-shadow-md);
  text-decoration: none;
}
.r2-mosaic__media { position: absolute; inset: 0; }
.r2-mosaic__media img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .8s cubic-bezier(.2,.7,.2,1);
}
.r2-mosaic__tile:hover .r2-mosaic__media img { transform: scale(1.06); }
.r2-mosaic__media::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(10,20,46,.10) 0%, rgba(10,20,46,.55) 55%, rgba(10,20,46,.92) 100%);
  transition: opacity var(--st-transition);
}
.r2-mosaic__tile:hover .r2-mosaic__media::after {
  background: linear-gradient(180deg, rgba(15,42,92,.18) 0%, rgba(15,42,92,.65) 55%, rgba(10,20,46,.95) 100%);
}
.r2-mosaic__media--placeholder {
  background:
    repeating-linear-gradient(45deg, rgba(255,255,255,.025) 0 12px, transparent 12px 24px),
    linear-gradient(135deg, var(--st-blue-900), var(--st-blue-700));
}
.r2-mosaic__content {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: var(--st-space-5) var(--st-space-6);
  z-index: 1;
}
.r2-mosaic__category {
  display: inline-block;
  font-size: .68rem; font-weight: 600;
  letter-spacing: .16em; text-transform: uppercase;
  color: var(--st-blue-300);
  margin-bottom: var(--st-space-2);
}
.r2-mosaic__title {
  display: block;
  font-size: clamp(1rem, 1.3vw, 1.2rem); font-weight: 700;
  line-height: 1.2; letter-spacing: -0.015em;
  color: #fff;
  margin-bottom: var(--st-space-2);
}
.r2-mosaic__desc {
  font-size: .9rem; line-height: 1.55;
  color: rgba(255,255,255,.82);
  margin-bottom: var(--st-space-3);
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.r2-mosaic__link {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .8rem; font-weight: 600;
  letter-spacing: .08em; text-transform: uppercase;
  color: #fff;
}
.r2-mosaic__link::after { content: "→"; transition: transform var(--st-transition); }
.r2-mosaic__tile:hover .r2-mosaic__link::after { transform: translateX(6px); }

/* ════════════════════════════════════════════════════════════════════════════
   FEATURED CASE STORY — large proof block on homepage
   ════════════════════════════════════════════════════════════════════════════ */
.r2-featured-story { padding-block: var(--st-space-9); background: var(--st-blue-900); color:#fff; position:relative; overflow:hidden; }
.r2-featured-story::before { content:""; position:absolute; inset:0; background: radial-gradient(900px 380px at 85% -10%, rgba(47,102,196,.30), transparent 60%); }
.r2-featured-story .st-container { position:relative; z-index:1; }
.r2-featured-story__inner { display:grid; grid-template-columns: 1fr 1fr; gap: var(--st-space-8); align-items:center; }
@media (max-width: 900px){ .r2-featured-story__inner { grid-template-columns:1fr; } }
.r2-featured-story__media { aspect-ratio: 5/4; overflow:hidden; background: var(--st-blue-900); border:1px solid rgba(255,255,255,.10); }
.r2-featured-story__media img { width:100%; height:100%; object-fit:cover; }
.r2-featured-story__eyebrow { display:inline-flex; align-items:center; gap:10px; font-size:.74rem; font-weight:600; letter-spacing:.16em; text-transform:uppercase; color: var(--st-blue-300); margin-bottom: var(--st-space-4); }
.r2-featured-story__eyebrow::before { content:""; width:30px; height:2px; background: var(--st-blue-500); }
.r2-featured-story__title { color:#fff; font-size: clamp(1.6rem, 2.8vw, 2.2rem); line-height:1.2; margin-bottom: var(--st-space-4); min-height: 5.5rem; display:flex; align-items:flex-start; }
.r2-featured-story__text { color: rgba(255,255,255,.85); font-size:1.075rem; margin-bottom: var(--st-space-6); flex:1; display:-webkit-box; -webkit-line-clamp:3; -webkit-box-orient:vertical; overflow:hidden; }
.r2-featured-story__metrics { display:grid; grid-template-columns: repeat(3,1fr); gap: var(--st-space-5); margin-bottom: var(--st-space-6); padding-block: var(--st-space-5); border-top:1px solid rgba(255,255,255,.16); border-bottom:1px solid rgba(255,255,255,.16); width:100%; align-self:stretch; }
.r2-metric__num { display:block; font-size:1.65rem; font-weight:600; color:#fff; letter-spacing:-0.02em; line-height:1; }
.r2-metric__label { display:block; font-size:.74rem; color: var(--st-blue-300); margin-top:6px; }

/* ════════════════════════════════════════════════════════════════════════════
   QUALITY & COMPLIANCE STRIP
   ════════════════════════════════════════════════════════════════════════════ */
/* ════════════════════════════════════════════════════════════════════════════
   QUALITY & COMPLIANCE — full-bleed image band with dark navy overlay
   ════════════════════════════════════════════════════════════════════════════ */
.r2-quality { position: relative; padding-block: var(--st-space-9); overflow: hidden; color: #fff; }
.r2-quality__media { position: absolute; inset: 0; z-index: 0; }
.r2-quality__media img, .r2-quality__media picture { width: 100%; height: 100%; object-fit: cover; display: block; }
.r2-quality__overlay { position: absolute; inset: 0; z-index: 1; background: linear-gradient(135deg, rgba(15,42,92,.92), rgba(15,42,92,.78)); }
.r2-quality__container { position: relative; z-index: 2; }
.r2-quality__head { max-width: 760px; margin-bottom: var(--st-space-7); }
.r2-quality__eyebrow { display: block; font-size: .72rem; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: var(--st-sky); margin-bottom: var(--st-space-3); }
.r2-quality__title { color: #fff; font-size: clamp(1.6rem, 2.4vw, 2.1rem); margin: 0 0 var(--st-space-3); }
.r2-quality__lead { color: rgba(255,255,255,.82); font-size: 1.02rem; line-height: 1.6; margin: 0; }
.r2-quality__items { display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--st-space-4); }
.r2-quality__item { background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.14); padding: var(--st-space-5) var(--st-space-4); transition: background 140ms ease, border-color 140ms ease; }
.r2-quality__item:hover { background: rgba(255,255,255,.10); border-color: var(--st-sky); }
.r2-quality__item-name { display: block; font-size: 1.02rem; font-weight: 600; color: #fff; letter-spacing: .01em; margin-bottom: 4px; }
.r2-quality__item-sub { display: block; font-size: .78rem; color: rgba(255,255,255,.7); }
@media (max-width: 1100px) { .r2-quality__items { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 640px)  { .r2-quality__items { grid-template-columns: repeat(2, 1fr); } }

/* ════════════════════════════════════════════════════════════════════════════
   EDITORIAL INSIGHTS — one large + two stacked
   ════════════════════════════════════════════════════════════════════════════ */
.r2-insights { display:grid; grid-template-columns: 1.4fr 1fr; gap: var(--st-space-6); margin-top: var(--st-space-6); }
@media (max-width: 900px){ .r2-insights { grid-template-columns:1fr; } }
.r2-insight {
  position:relative; display:block; overflow:hidden; min-height: 320px;
  color:#fff; text-decoration:none; background: var(--st-blue-900);
  transition: transform var(--st-transition);
}
.r2-insight:hover { transform: translateY(-3px); color:#fff; }
.r2-insight__media { position:absolute; inset:0; }
.r2-insight__media img { width:100%; height:100%; object-fit:cover; transition: transform .7s cubic-bezier(.2,.7,.2,1); }
.r2-insight:hover .r2-insight__media img { transform: scale(1.05); }
.r2-insight__media::after { content:""; position:absolute; inset:0; background: linear-gradient(180deg, rgba(10,20,46,.15) 0%, rgba(10,20,46,.85) 78%, rgba(10,20,46,.95) 100%); }
.r2-insight__media--placeholder { background: linear-gradient(135deg, var(--st-blue-900), var(--st-blue-700)); }
.r2-insight__content { position:absolute; left:0; right:0; bottom:0; padding: var(--st-space-6); z-index:1; }
.r2-insight__cat { display:block; font-size:.66rem; font-weight:600; letter-spacing:.14em; text-transform:uppercase; color: var(--st-blue-300); margin-bottom: var(--st-space-2); }
.r2-insight__title { display:block; font-size:1.3rem; font-weight:600; line-height:1.25; color:#fff; margin-bottom: var(--st-space-3); }
.r2-insight--lead { grid-row: span 2; }
.r2-insight--lead .r2-insight__title { font-size: clamp(1.5rem, 2.2vw, 1.85rem); }
.r2-insight__excerpt { font-size:.92rem; color: rgba(255,255,255,.82); display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
.r2-insight__link { display:inline-flex; align-items:center; gap:6px; margin-top: var(--st-space-3); font-size:.78rem; font-weight:600; letter-spacing:.06em; text-transform:uppercase; color:#fff; }
.r2-insight__link::after { content:"→"; transition: transform var(--st-transition); }
.r2-insight:hover .r2-insight__link::after { transform: translateX(5px); }

/* ════════════════════════════════════════════════════════════════════════════
   WHY SORBITECH — 4 brand pillars (icon + heading only)
   ════════════════════════════════════════════════════════════════════════════ */
.r2-why { padding-block: var(--st-space-8); background: var(--st-white); border-bottom: 1px solid var(--st-hairline-gray); }
.r2-why__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--st-space-7); }
.r2-why__item { display: flex; flex-direction: column; align-items: center; text-align: center; padding: var(--st-space-3); }
.r2-why__icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 88px; height: 88px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--st-blue) 0%, var(--st-navy) 100%);
  color: #fff;
  margin-bottom: var(--st-space-4);
  box-shadow: 0 6px 18px rgba(47, 102, 196, 0.18);
}
.r2-why__icon svg { width: 44px; height: 44px; }
.r2-why__title { font-size: 1.05rem; font-weight: 600; letter-spacing: .01em; color: var(--st-dark-gray); margin: 0; }
@media (max-width: 1023px) { .r2-why__grid { grid-template-columns: repeat(2, 1fr); gap: var(--st-space-6); } }
@media (max-width: 480px)  { .r2-why__grid { grid-template-columns: repeat(2, 1fr); gap: var(--st-space-5); } .r2-why__icon { width: 72px; height: 72px; } .r2-why__icon svg { width: 36px; height: 36px; } }

/* ════════════════════════════════════════════════════════════════════════════
   WELCOME / ABOUT SORBITECH — GEA layout: image on the left, text on the right.
   Full container width (no centered text panel), side-by-side at the desktop
   breakpoint, stacks on mobile. No background overlay over the image.
   ════════════════════════════════════════════════════════════════════════════ */
.r2-welcome { background: var(--st-off-white); }
/* Grid: no fixed height — text column drives the row height naturally.
   Image column uses position:absolute to fill 100% of whatever that height is. */
.r2-welcome__grid { display: grid; grid-template-columns: 1.1fr 1fr; }
.r2-welcome__media { position: relative; min-height: 380px; }
.r2-welcome__media img, .r2-welcome__media picture { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center center; display: block; }
.r2-welcome__text { padding: var(--st-space-8) clamp(40px, 5vw, 72px); }
/* SorbiTech-distinctive eyebrow: short Blue bar + uppercase letter-spaced label */
.r2-welcome__eyebrow { display: inline-flex; align-items: center; gap: var(--st-space-3); font-size: .72rem; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: var(--st-blue); margin-bottom: var(--st-space-4); }
.r2-welcome__eyebrow-bar { display: inline-block; width: 28px; height: 2px; background: var(--st-blue); }
.r2-welcome__title { font-size: clamp(1.5rem, 2.2vw, 2.1rem); color: var(--st-navy); margin: 0 0 var(--st-space-4); line-height: 1.18; letter-spacing: -.01em; }
.r2-welcome__lead { font-size: .97rem; line-height: 1.65; color: var(--st-dark-gray); margin: 0 0 var(--st-space-5); }
.r2-welcome__actions { display: flex; align-items: center; gap: var(--st-space-5); flex-wrap: wrap; margin-bottom: 0; }
.r2-welcome__cta { /* extends .st-btn--primary; nothing extra needed */ }
.r2-welcome__link { display: inline-flex; align-items: center; gap: 8px; font-size: .95rem; font-weight: 600; color: var(--st-blue); text-decoration: none; transition: color 160ms ease, gap 160ms ease; }
.r2-welcome__link:hover { color: var(--st-navy); gap: 12px; }
/* Group composition strip: 4 entities with step number prefix */
.r2-welcome__entities { display: flex; align-items: center; gap: var(--st-space-5) var(--st-space-6); flex-wrap: wrap; padding-top: var(--st-space-5); margin: var(--st-space-5) 0 0; list-style: none; border-top: 1px solid var(--st-hairline-gray); }
.r2-welcome__entities li { display: inline-flex; align-items: baseline; gap: 8px; font-size: .92rem; font-weight: 600; color: var(--st-dark-gray); }
.r2-welcome__entity-num { font-size: .7rem; font-weight: 700; letter-spacing: .08em; color: var(--st-sky); font-family: var(--st-font-display, inherit); }
@media (max-width: 880px) {
  .r2-welcome__grid { grid-template-columns: 1fr; }
  .r2-welcome__media { min-height: 280px; height: 280px; }
  .r2-welcome__text { padding: var(--st-space-7) var(--st-space-5); }
}

/* ════════════════════════════════════════════════════════════════════════════
   ENGAGEMENT SPECTRUM — 5 premium tiles in a horizontal rail
   ════════════════════════════════════════════════════════════════════════════ */
.r2-engage { padding-block: var(--st-space-9); background: var(--st-off-white); }
.r2-engage__head { max-width: 760px; margin-bottom: var(--st-space-7); }
.r2-engage__title { font-size: clamp(1.6rem, 2.5vw, 2.2rem); color: var(--st-dark-gray); margin: var(--st-space-3) 0 var(--st-space-3); line-height: 1.2; }
.r2-engage__lead { font-size: 1.02rem; line-height: 1.6; color: var(--st-light-gray); margin: 0; }
.r2-engage__rail { display: grid; grid-template-columns: repeat(5, 1fr); gap: var(--st-space-4); }
.r2-engage__tile {
  position: relative;
  display: flex; flex-direction: column;
  padding: var(--st-space-6) var(--st-space-5) var(--st-space-5);
  background: var(--st-white);
  border-top: 3px solid var(--st-hairline-gray);
  text-decoration: none; color: var(--st-dark-gray);
  transition: border-top-color 200ms ease, transform 200ms ease, box-shadow 200ms ease;
  min-height: 280px;
  overflow: hidden;
}
.r2-engage__tile:hover { border-top-color: var(--st-blue); transform: translateY(-4px); box-shadow: 0 14px 32px rgba(15,42,92,.10); color: var(--st-dark-gray); }
.r2-engage__tile--final { border-top-color: var(--st-blue); background: linear-gradient(180deg, rgba(47,102,196,.04), rgba(255,255,255,1) 60%); }
.r2-engage__num { font-size: 2.4rem; font-weight: 700; line-height: 1; letter-spacing: -.02em; color: var(--st-sky); margin-bottom: var(--st-space-5); font-family: var(--st-font-display, inherit); }
.r2-engage__icon { display: inline-flex; width: 44px; height: 44px; color: var(--st-blue); margin-bottom: var(--st-space-4); }
.r2-engage__icon svg { width: 40px; height: 40px; }
.r2-engage__name { display: block; font-size: 1.08rem; font-weight: 600; color: var(--st-dark-gray); margin-bottom: var(--st-space-3); line-height: 1.25; }
.r2-engage__desc { display: block; font-size: .9rem; line-height: 1.55; color: var(--st-light-gray); flex: 1; }
.r2-engage__more { display: inline-flex; align-items: center; gap: 6px; margin-top: var(--st-space-4); font-size: .8rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--st-blue); }
.r2-engage__more-arrow { transition: transform 200ms ease; }
.r2-engage__tile:hover .r2-engage__more-arrow { transform: translateX(4px); }
.r2-engage__cta { margin-top: var(--st-space-7); text-align: center; }
@media (max-width: 1100px) { .r2-engage__rail { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 720px)  { .r2-engage__rail { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px)  { .r2-engage__rail { grid-template-columns: 1fr; } .r2-engage__tile { min-height: 0; } }

/* ════════════════════════════════════════════════════════════════════════════
   SUSTAINABILITY — full-bleed green photo background + 2-column content
   (heading-left, body-right). Uses full container width, no centered panel.
   ════════════════════════════════════════════════════════════════════════════ */
.r2-sustain { position: relative; min-height: 480px; display: flex; align-items: center; padding-block: var(--st-space-9); overflow: hidden; color: #fff; }
.r2-sustain__media { position: absolute; inset: 0; z-index: 0; }
.r2-sustain__media img, .r2-sustain__media picture { width: 100%; height: 100%; object-fit: cover; display: block; }
.r2-sustain__overlay { position: absolute; inset: 0; z-index: 1; background: linear-gradient(115deg, rgba(15,42,92,.88) 0%, rgba(31, 107, 58, .76) 100%); }
.r2-sustain__container { position: relative; z-index: 2; width: 100%; max-width: var(--st-container-max); }
.r2-sustain__grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(var(--st-space-6), 5vw, var(--st-space-9)); align-items: start; }
.r2-sustain__head-col { padding-right: var(--st-space-5); }
.r2-sustain__body-col { padding-left: var(--st-space-3); border-left: 2px solid rgba(111,160,239,.45); padding-inline-start: var(--st-space-7); }
.r2-sustain__eyebrow { display: block; font-size: .72rem; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: var(--st-sky); margin-bottom: var(--st-space-4); }
.r2-sustain__title { font-size: clamp(1.9rem, 3.2vw, 2.8rem); color: #fff; margin: 0; line-height: 1.12; }
.r2-sustain__lead { font-size: 1.06rem; line-height: 1.7; color: rgba(255,255,255,.92); margin: 0 0 var(--st-space-6); }
.r2-sustain__cta { display: inline-flex; align-items: center; gap: 10px; font-size: 1rem; font-weight: 600; color: #fff; text-decoration: none; padding-bottom: 4px; border-bottom: 1.5px solid rgba(255,255,255,.6); transition: gap 160ms ease, border-color 160ms ease; }
.r2-sustain__cta:hover { color: #fff; gap: 14px; border-bottom-color: var(--st-sky); }
@media (max-width: 880px) {
  .r2-sustain__grid { grid-template-columns: 1fr; gap: var(--st-space-5); }
  .r2-sustain__head-col { padding-right: 0; }
  .r2-sustain__body-col { padding-left: 0; padding-inline-start: 0; border-left: 0; border-top: 2px solid rgba(111,160,239,.45); padding-top: var(--st-space-5); }
  .r2-sustain { min-height: 380px; }
}

/* ════════════════════════════════════════════════════════════════════════════
   CLIENTS — auto-scrolling logo strip (img OR styled wordmark fallback)
   When a real licensed logo file is dropped at assets/img/clients/<slug>.svg
   the template renders <img>. Otherwise it falls back to a styled wordmark.
   ════════════════════════════════════════════════════════════════════════════ */
.r2-clients { padding-block: var(--st-space-9); background: var(--st-white); border-top: 1px solid var(--st-hairline-gray); }
.r2-clients__head { text-align: center; margin-bottom: var(--st-space-7); }
.r2-clients__title { font-size: clamp(1.4rem, 2.2vw, 1.9rem); color: var(--st-dark-gray); margin: var(--st-space-3) 0 0; }
.r2-clients__viewport { overflow: hidden; position: relative; mask-image: linear-gradient(to right, transparent 0, #000 6%, #000 94%, transparent 100%); -webkit-mask-image: linear-gradient(to right, transparent 0, #000 6%, #000 94%, transparent 100%); }
.r2-clients__track { display: flex; align-items: center; gap: clamp(48px, 6vw, 96px); width: max-content; animation: r2ClientsScroll 100s linear infinite; padding-inline: var(--st-space-6); }
.r2-clients__item {
  display: inline-flex; align-items: center; justify-content: center;
  height: 96px; min-width: 180px; padding: 0 var(--st-space-3);
}
/* Real-logo variant (img): grayscale by default, full colour on hover */
.r2-clients__item--logo img {
  max-height: 56px; max-width: 180px; width: auto; height: auto;
  object-fit: contain; display: block;
  filter: grayscale(1) opacity(.75);
  transition: filter 200ms ease;
}
.r2-clients__item--logo:hover img { filter: grayscale(0) opacity(1); }
/* Wordmark fallback: clean typographic mark, no boxes/borders */
.r2-clients__wordmark {
  font-family: var(--st-font-display, inherit);
  font-size: 1.4rem; font-weight: 700; letter-spacing: .06em;
  color: var(--st-light-gray);
  text-transform: uppercase;
  transition: color 200ms ease;
}
.r2-clients__item--wordmark:hover .r2-clients__wordmark { color: var(--st-navy); }
.r2-clients__viewport:hover .r2-clients__track { animation-play-state: paused; }
@keyframes r2ClientsScroll { from { transform: translateX(0); } to { transform: translateX(-50%); } }
@media (max-width: 768px) {
  .r2-clients__item { height: 72px; min-width: 140px; }
  .r2-clients__item--logo img { max-height: 44px; max-width: 140px; }
  .r2-clients__wordmark { font-size: 1.15rem; }
}

/* ════ RESPONSIVE ════ */
@media (max-width: 768px) {
  .st-section { padding-block: var(--st-space-7); }
  .st-hero { padding-block: var(--st-space-6); }
  .st-contact-cta__inner { flex-direction:column; align-items:flex-start; }
  .st-brand-link { flex-direction:column; align-items:flex-start; }
  .r2-step { grid-template-columns: 48px 1fr; gap: var(--st-space-4); }
  .r2-step__num { width:48px; height:48px; font-size:1.1rem; }
  .r2-stats__grid { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 480px) {
  .st-container { padding-inline: var(--st-space-4); }
  .st-card-grid, .st-card-grid--3col, .st-card-grid--2col { grid-template-columns:1fr; }
}

/* ════════════════════════════════════════════════════════════════════════════
   ABOUT PAGES — visual layout components (cards, grids, badges, flows)
   Used by /about/* pages where the seeder injects styled HTML inside content.
   page.php switches to the wide container + .r2-about-prose scope for these.
   ════════════════════════════════════════════════════════════════════════════ */
.r2-about-prose { max-width: none; }
.r2-about-prose h2 { margin-block: var(--st-space-8) var(--st-space-4); }
.r2-about-prose h2:first-child { margin-top: 0; }
/* Per WEBSITE LAYOUT STANDARD §2: paragraphs fill the container width.
   For explicitly narrow readable prose, wrap content in .r2-readable. */
.r2-about-prose p { line-height: 1.7; }
.r2-about-prose .r2-readable p { max-width: var(--st-container-narrow); }

/* Eyebrow / section label used inside About content */
.r2-about-eyebrow { display: inline-flex; align-items: center; gap: 10px; font-size: .72rem; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: var(--st-blue); margin-bottom: var(--st-space-3); }
.r2-about-eyebrow::before { content: ""; display: inline-block; width: 24px; height: 2px; background: var(--st-blue); }

/* Hero band at the top of an About page */
.r2-about-hero { background: var(--st-off-white); border-block: 1px solid var(--st-hairline-gray); padding: var(--st-space-8) var(--st-space-6); margin-block: var(--st-space-6) var(--st-space-8); border-left: 4px solid var(--st-blue); }
.r2-about-hero__title { font-size: clamp(1.6rem, 2.6vw, 2.2rem); color: var(--st-navy); margin: 0 0 var(--st-space-3); line-height: 1.2; }
.r2-about-hero__lead { font-size: 1.08rem; line-height: 1.7; color: var(--st-dark-gray); margin: 0; max-width: 760px; }

/* Card grid (auto-collapsing) */
.r2-about-cards { display: grid; gap: var(--st-space-5); margin-block: var(--st-space-6); }
.r2-about-cards--2 { grid-template-columns: repeat(2, 1fr); }
.r2-about-cards--3 { grid-template-columns: repeat(3, 1fr); }
.r2-about-cards--4 { grid-template-columns: repeat(4, 1fr); }
.r2-about-cards--5 { grid-template-columns: repeat(5, 1fr); }
.r2-about-cards--6 { grid-template-columns: repeat(6, 1fr); }
.r2-about-cards--7 { grid-template-columns: repeat(7, 1fr); }
@media (max-width: 1280px) { .r2-about-cards--7 { grid-template-columns: repeat(4, 1fr); } .r2-about-cards--6 { grid-template-columns: repeat(3, 1fr); } .r2-about-cards--5 { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 980px)  { .r2-about-cards--4 { grid-template-columns: repeat(2, 1fr); } .r2-about-cards--3 { grid-template-columns: repeat(2, 1fr); } .r2-about-cards--5, .r2-about-cards--6, .r2-about-cards--7 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px)  { .r2-about-cards--2, .r2-about-cards--3, .r2-about-cards--4, .r2-about-cards--5, .r2-about-cards--6, .r2-about-cards--7 { grid-template-columns: 1fr; } }

/* Card — white panel, Hairline border, Blue top accent on hover */
.r2-about-card {
  display: flex; flex-direction: column;
  background: var(--st-white);
  border: 1px solid var(--st-hairline-gray);
  border-top: 3px solid var(--st-hairline-gray);
  padding: var(--st-space-5) var(--st-space-5) var(--st-space-5);
  color: var(--st-dark-gray); text-decoration: none;
  transition: border-top-color 200ms ease, transform 200ms ease, box-shadow 200ms ease;
}
a.r2-about-card { color: var(--st-dark-gray); }
.r2-about-card:hover { border-top-color: var(--st-blue); transform: translateY(-3px); box-shadow: 0 12px 28px rgba(15,42,92,.08); color: var(--st-dark-gray); }
.r2-about-card__num { font-size: .72rem; font-weight: 700; letter-spacing: .14em; color: var(--st-sky); font-family: var(--st-font-display, inherit); margin-bottom: var(--st-space-3); }
.r2-about-card__icon { display: inline-flex; width: 44px; height: 44px; align-items: center; justify-content: center; color: var(--st-blue); margin-bottom: var(--st-space-3); }
.r2-about-card__icon svg { width: 40px; height: 40px; }
.r2-about-card__title { font-size: 1.05rem; font-weight: 600; color: var(--st-dark-gray); margin: 0 0 var(--st-space-2); line-height: 1.25; }
.r2-about-card__desc { font-size: .9rem; line-height: 1.55; color: var(--st-light-gray); margin: 0; flex: 1; }
.r2-about-card__link { display: inline-flex; align-items: center; gap: 6px; margin-top: var(--st-space-4); font-size: .8rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--st-blue); }
.r2-about-card__link::after { content: "→"; transition: transform 200ms ease; }
a.r2-about-card:hover .r2-about-card__link::after { transform: translateX(3px); }

/* Entity premium card — Navy gradient header + white body (for /about/our-entities/) */
.r2-about-entity { display: flex; flex-direction: column; background: var(--st-white); border: 1px solid var(--st-hairline-gray); overflow: hidden; transition: transform 200ms ease, box-shadow 200ms ease; }
.r2-about-entity:hover { transform: translateY(-3px); box-shadow: 0 14px 32px rgba(15,42,92,.10); }
.r2-about-entity__header { background: linear-gradient(135deg, var(--st-blue) 0%, var(--st-navy) 100%); color: #fff; padding: var(--st-space-5) var(--st-space-5) var(--st-space-5); position: relative; overflow: hidden; }
.r2-about-entity__num { display: block; font-size: .68rem; font-weight: 600; letter-spacing: .18em; color: var(--st-sky); margin-bottom: var(--st-space-3); }
.r2-about-entity__name { display: block; font-size: 1.6rem; font-weight: 700; color: #fff; line-height: 1.1; margin-bottom: 4px; }
.r2-about-entity__role { display: block; font-size: .72rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: rgba(255,255,255,.78); }
.r2-about-entity__body { padding: var(--st-space-5); display: flex; flex-direction: column; flex: 1; }
.r2-about-entity__desc { font-size: .92rem; line-height: 1.6; color: var(--st-dark-gray); margin: 0 0 var(--st-space-4); flex: 1; }
.r2-about-entity__site { display: inline-flex; align-items: center; gap: 6px; font-size: .85rem; font-weight: 600; color: var(--st-blue); text-decoration: none; }
.r2-about-entity__site:hover { color: var(--st-navy); }
.r2-about-entity__site::after { content: "↗"; font-size: .9rem; }

/* Standards badges (for /about/quality/) */
.r2-about-badges { display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--st-space-3); margin-block: var(--st-space-6); }
@media (max-width: 1280px) { .r2-about-badges { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 640px)  { .r2-about-badges { grid-template-columns: repeat(2, 1fr); } }
.r2-about-badge { background: var(--st-white); border: 1px solid var(--st-hairline-gray); border-top: 3px solid var(--st-blue); padding: var(--st-space-5) var(--st-space-3); text-align: center; transition: transform 200ms ease, box-shadow 200ms ease; }
.r2-about-badge:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(15,42,92,.06); }
.r2-about-badge__code { display: block; font-size: 1rem; font-weight: 700; letter-spacing: .01em; color: var(--st-navy); margin-bottom: 4px; }
.r2-about-badge__sub { display: block; font-size: .72rem; color: var(--st-light-gray); }

/* Process flow (for /about/manufacturing/) */
.r2-about-flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: var(--st-space-4); margin-block: var(--st-space-6); }
@media (max-width: 1100px) { .r2-about-flow { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 640px)  { .r2-about-flow { grid-template-columns: 1fr; } }
.r2-about-flow__step { background: var(--st-white); border: 1px solid var(--st-hairline-gray); padding: var(--st-space-5) var(--st-space-4); text-align: center; position: relative; }
.r2-about-flow__num { display: inline-flex; width: 48px; height: 48px; align-items: center; justify-content: center; border-radius: 50%; background: linear-gradient(135deg, var(--st-blue), var(--st-navy)); color: #fff; font-size: 1rem; font-weight: 700; margin-bottom: var(--st-space-3); font-family: var(--st-font-display, inherit); box-shadow: 0 6px 14px rgba(47,102,196,.20); }
.r2-about-flow__title { font-size: .98rem; font-weight: 600; color: var(--st-dark-gray); margin: 0 0 var(--st-space-2); }
.r2-about-flow__desc { font-size: .82rem; line-height: 1.5; color: var(--st-light-gray); margin: 0; }

/* Lead band (subtle Off-White wrapper around lead paragraph) */
.r2-about-lead { background: var(--st-off-white); border-left: 3px solid var(--st-blue); padding: var(--st-space-5) var(--st-space-6); margin-block: var(--st-space-6); }
.r2-about-lead p { font-size: 1.05rem; line-height: 1.7; color: var(--st-dark-gray); margin: 0; }

/* Section pre-heading and meta */
.r2-about-prose .r2-about-cards + h2,
.r2-about-prose .r2-about-badges + h2,
.r2-about-prose .r2-about-flow + h2 { margin-top: var(--st-space-9); }

/* ── Quick Answer (AI-citable definition box at top of every About page) ── */
.r2-about-qa { background: var(--st-white); border: 1px solid var(--st-hairline-gray); border-left: 4px solid var(--st-blue); padding: var(--st-space-5) var(--st-space-6); margin-block: var(--st-space-6); }
.r2-about-qa__label { display: block; font-size: .7rem; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: var(--st-blue); margin-bottom: var(--st-space-3); }
.r2-about-qa__text { margin: 0; font-size: 1.02rem; line-height: 1.7; color: var(--st-dark-gray); }

/* ── FULL-BLEED hero banner (used at top of every About sub-page).
   Per WEBSITE LAYOUT STANDARD §3: spans 100vw, caption text stays
   container-aligned via max() padding. ── */
.r2-about-banner {
  position: relative;
  width: 100vw;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  margin-block: 0 var(--st-space-7);
  overflow: hidden;
  aspect-ratio: 21 / 9;
  max-height: 460px;
  min-height: 320px;
}
.r2-about-banner picture, .r2-about-banner img { width: 100%; height: 100%; object-fit: cover; display: block; }
.r2-about-banner__tint { position: absolute; inset: 0; background: linear-gradient(120deg, rgba(15,42,92,.55) 0%, rgba(15,42,92,.15) 60%, rgba(15,42,92,0) 100%); }
.r2-about-banner__caption {
  position: absolute; left: 0; right: 0; bottom: 0;
  /* max() keeps caption aligned to .st-container left edge when viewport > container,
     and falls back to standard container padding when viewport is narrower. */
  padding-block: var(--st-space-5);
  padding-inline: max(var(--st-space-6), calc((100% - var(--st-container-max)) / 2 + var(--st-space-6)));
  color: #fff; font-size: .82rem; font-weight: 600;
  letter-spacing: .12em; text-transform: uppercase;
  background: linear-gradient(180deg, transparent, rgba(15,42,92,.55));
}
@media (max-width: 768px) { .r2-about-banner { aspect-ratio: 16 / 10; min-height: 260px; } }

/* ── Photo + text split (alternating, used on Entities page per branch) ── */
.r2-about-split { display: grid; grid-template-columns: 1fr 1fr; gap: var(--st-space-7); align-items: center; margin-block: var(--st-space-8); }
.r2-about-split--reverse .r2-about-split__media { order: 2; }
.r2-about-split__media { position: relative; aspect-ratio: 4 / 3; overflow: hidden; background: var(--st-off-white); border: 1px solid var(--st-hairline-gray); }
.r2-about-split__media picture, .r2-about-split__media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.r2-about-split__text { padding: 0; }
.r2-about-split__eyebrow { display: inline-flex; align-items: center; gap: 10px; font-size: .72rem; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: var(--st-blue); margin-bottom: var(--st-space-3); }
.r2-about-split__eyebrow::before { content: ""; display: inline-block; width: 24px; height: 2px; background: var(--st-blue); }
.r2-about-split__title { font-size: clamp(1.5rem, 2.4vw, 2rem); color: var(--st-navy); margin: 0 0 var(--st-space-3); line-height: 1.15; }
.r2-about-split__role { font-size: .82rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--st-light-gray); margin: 0 0 var(--st-space-4); }
.r2-about-split__desc { font-size: 1rem; line-height: 1.7; color: var(--st-dark-gray); margin: 0 0 var(--st-space-4); }
.r2-about-split__chips { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: var(--st-space-4); }
.r2-about-split__chip { display: inline-block; padding: 4px 10px; background: var(--st-off-white); border: 1px solid var(--st-hairline-gray); font-size: .78rem; color: var(--st-dark-gray); letter-spacing: .02em; }
.r2-about-split__site { display: inline-flex; align-items: center; gap: 6px; font-size: .95rem; font-weight: 600; color: var(--st-blue); text-decoration: none; transition: gap 160ms ease; }
.r2-about-split__site:hover { color: var(--st-navy); gap: 10px; }
.r2-about-split__site::after { content: "↗"; font-size: .9rem; }
@media (max-width: 880px) { .r2-about-split { grid-template-columns: 1fr; gap: var(--st-space-5); } .r2-about-split--reverse .r2-about-split__media { order: 0; } }

/* ── FAQ section (rendered for AI extraction + user reference) ── */
.r2-about-faq { background: var(--st-off-white); padding: var(--st-space-7); margin-block: var(--st-space-8); border-top: 3px solid var(--st-blue); }
.r2-about-faq__title { font-size: 1.4rem; color: var(--st-navy); margin: 0 0 var(--st-space-5); }
.r2-about-faq__item { padding-block: var(--st-space-4); border-top: 1px solid var(--st-hairline-gray); }
.r2-about-faq__item:first-child { border-top: 0; padding-top: 0; }
.r2-about-faq__q { font-size: 1rem; font-weight: 600; color: var(--st-navy); margin: 0 0 var(--st-space-2); }
.r2-about-faq__a { font-size: .95rem; line-height: 1.65; color: var(--st-dark-gray); margin: 0; }

/* ─────────────────────────────────────────────────────────────────────────
   CONTACT PAGE — minimal additions to existing R2 design system.
   The page (page-contact.php) reuses .r2-about-banner, .r2-about-qa,
   .r2-about-cards, .r2-about-card, .r2-split. Only three new components
   are defined here: response promise card, channels list, FAQ accordion.
   ───────────────────────────────────────────────────────────────────────── */

/* About page hero — full-bleed banner with breadcrumb + title overlaid
   (page.php renders this above content for /about/ and all About sub-pages). */
.r2-about-page-hero { position: relative; width: 100%; aspect-ratio: 21 / 8; min-height: 360px; max-height: 540px; margin: 0; overflow: hidden; display: flex; align-items: center; }
.r2-about-page-hero picture, .r2-about-page-hero img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; }
.r2-about-page-hero__tint { position: absolute; inset: 0; background: linear-gradient(115deg, rgba(15,42,92,.88) 0%, rgba(15,42,92,.55) 55%, rgba(15,42,92,.20) 100%); z-index: 1; }
.r2-about-page-hero__inner { position: relative; z-index: 2; width: 100%; color: #fff; }
.r2-about-page-hero__inner > .st-container { width: 100%; }
.r2-about-page-hero__crumb { display: inline-block; font-size: .8rem; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: var(--st-sky); border-left: 3px solid var(--st-sky); padding-left: var(--st-space-3); margin-bottom: var(--st-space-3); }
.r2-about-page-hero__crumb a { color: var(--st-sky); text-decoration: none; }
.r2-about-page-hero__crumb a:hover { color: #fff; }
.r2-about-page-hero__crumb--label { color: var(--st-sky); }
.r2-about-page-hero__title { font-size: clamp(2rem, 4.4vw, 3rem); line-height: 1.1; font-weight: 700; color: #fff; margin: 0; max-width: 780px; }
@media (max-width: 768px) { .r2-about-page-hero { aspect-ratio: auto; min-height: 300px; max-height: none; padding-block: var(--st-space-7); } }

/* ─────────────────────────────────────────────────────────────────────────
   PRODUCTS ARCHIVE — editorial portfolio (Linde / BASF / Evonik / UOP tone).
   Multi-section rhythm: lead band · spotlight · numbered rows · quality
   split · 4-step methodology · standards strip · pull-quote · CTA.
   ───────────────────────────────────────────────────────────────────────── */

/* Hero sub-lead (extends .r2-about-page-hero) */
.r2-about-page-hero__sub { font-size: clamp(.98rem, 1.4vw, 1.12rem); line-height: 1.55; color: rgba(255,255,255,.88); margin: var(--st-space-4) 0 0; max-width: 640px; }

/* [C] Lead editorial band — Off-White section, matches portfolio inner width */
.r2-prod-lead-band { background: var(--st-off-white); border-block: 1px solid var(--st-hairline-gray); padding-block: 120px; }
.r2-prod-lead-band__inner { max-width: 1320px; margin-inline: auto; text-align: left; }
.r2-prod-lead-band__eyebrow { display: inline-block; font-size: .78rem; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: var(--st-blue); border-left: 3px solid var(--st-blue); padding-left: var(--st-space-3); margin-bottom: var(--st-space-4); }
.r2-prod-lead-band__headline { font-size: clamp(1.8rem, 3.2vw, 2.6rem); line-height: 1.15; font-weight: 700; color: var(--st-navy); margin: 0 0 var(--st-space-6); max-width: 860px; }
.r2-prod-lead-band__copy { max-width: 1080px; }
.r2-prod-lead-band__copy p { font-size: 1.02rem; line-height: 1.75; color: var(--st-dark-gray); margin: 0 0 var(--st-space-5); }
.r2-prod-lead-band__copy p:last-child { margin-bottom: 0; }

/* [D] Featured spotlight — large image + rich body */
.r2-prod-spotlight { padding-block: var(--st-space-9); background: var(--st-white); }
.r2-prod-spotlight__grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: var(--st-space-8); align-items: center; }
.r2-prod-spotlight__media { position: relative; aspect-ratio: 4 / 3; overflow: hidden; background: var(--st-off-white); border: 1px solid var(--st-hairline-gray); }
.r2-prod-spotlight__media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.r2-prod-spotlight__badge { position: absolute; top: var(--st-space-4); left: var(--st-space-4); background: var(--st-navy); color: #fff; font-size: .68rem; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; padding: 6px 14px; }
.r2-prod-spotlight__body { padding: 0; }
.r2-prod-spotlight__eyebrow { font-size: .72rem; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: var(--st-blue); margin-bottom: var(--st-space-3); display: inline-block; }
.r2-prod-spotlight__title { font-size: clamp(1.8rem, 3.2vw, 2.4rem); font-weight: 700; color: var(--st-navy); line-height: 1.1; margin: 0 0 var(--st-space-3); }
.r2-prod-spotlight__apps { font-size: .92rem; font-weight: 600; color: var(--st-light-gray); letter-spacing: .02em; margin: 0 0 var(--st-space-5); padding-bottom: var(--st-space-4); border-bottom: 1px solid var(--st-hairline-gray); }
.r2-prod-spotlight__desc { font-size: 1.02rem; line-height: 1.7; color: var(--st-dark-gray); margin: 0 0 var(--st-space-6); }
.r2-prod-spotlight__meta { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--st-space-4); padding-block: var(--st-space-5); border-block: 1px solid var(--st-hairline-gray); margin-bottom: var(--st-space-6); }
.r2-prod-spotlight__meta div { display: flex; flex-direction: column; gap: 2px; }
.r2-prod-spotlight__meta span { font-size: .68rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--st-light-gray); }
.r2-prod-spotlight__meta strong { font-size: .95rem; color: var(--st-navy); font-weight: 600; }
.r2-prod-spotlight__cta { display: inline-flex; align-items: center; gap: 10px; padding: 14px 24px; background: var(--st-blue); color: #fff; font-size: .82rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; text-decoration: none; transition: background 160ms ease, gap 160ms ease; }
.r2-prod-spotlight__cta:hover { background: var(--st-navy); gap: 14px; color: #fff; }
.r2-prod-spotlight__cta span { font-size: 1.1rem; }
@media (max-width: 880px) {
	.r2-prod-spotlight__grid { grid-template-columns: 1fr; gap: var(--st-space-6); }
	.r2-prod-spotlight__meta { grid-template-columns: 1fr; gap: var(--st-space-3); }
}

/* Section divider title — used on the Complete Portfolio + Engineering Methodology */
.r2-prod-section-title { font-size: clamp(1.5rem, 2.6vw, 2rem) !important; color: var(--st-navy); margin-block: var(--st-space-7) var(--st-space-4) !important; padding-top: 0; position: relative; }
.r2-prod-section-title::before { content: ""; display: block; width: 36px; height: 2px; background: var(--st-blue); margin-bottom: var(--st-space-3); }

/* ── PORTFOLIO — uniform alternating rows for ALL families ─────────────── */

.r2-portfolio { padding-block: 120px; background: var(--st-white); }
.r2-portfolio__head { max-width: 760px; margin: 0 auto calc(var(--st-space-9) + 24px); text-align: center; }
.r2-portfolio__eyebrow { display: inline-block; font-size: .78rem; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: var(--st-blue); margin-bottom: var(--st-space-3); }
.r2-portfolio__title { font-size: clamp(1.8rem, 3vw, 2.4rem); font-weight: 700; color: var(--st-navy); line-height: 1.15; margin: 0 0 var(--st-space-4); }
.r2-portfolio__lead { font-size: 1rem; line-height: 1.65; color: var(--st-dark-gray); margin: 0; }

.r2-portfolio__rows { display: flex; flex-direction: column; gap: var(--st-space-9); padding-bottom: var(--st-space-5); }

/* Each row — UNIFORM treatment, alternating image side via :nth-child.
   Asymmetric grid + body width cap so paragraph line length stays readable
   on wide screens (1200px container leaves a centred ≈1080px row). */
.r2-portfolio-row { display: grid; grid-template-columns: minmax(360px, 480px) minmax(0, 780px); gap: var(--st-space-8); max-width: 1320px; margin-inline: auto; align-items: center; opacity: 0; transform: translateY(40px); transition: opacity 700ms cubic-bezier(.22,.61,.36,1), transform 700ms cubic-bezier(.22,.61,.36,1); }
.r2-portfolio-row.is-revealed { opacity: 1; transform: translateY(0); }
.r2-portfolio-row:nth-child(even) { grid-template-columns: minmax(0, 780px) minmax(360px, 480px); }
.r2-portfolio-row:nth-child(even) .r2-portfolio-row__media { order: 2; }

/* Media — image fills its column naturally (no crop, no forced aspect), rounded */
.r2-portfolio-row__media { position: relative; overflow: hidden; background: var(--st-off-white); border: 1px solid var(--st-hairline-gray); border-radius: 12px; }
.r2-portfolio-row__media img { width: 100%; height: auto; display: block; transition: transform 800ms cubic-bezier(.22,.61,.36,1); }
.r2-portfolio-row:hover .r2-portfolio-row__media img { transform: scale(1.04); }
.r2-portfolio-row__media-tint { position: absolute; inset: 0; background: linear-gradient(135deg, rgba(15,42,92,.08) 0%, rgba(15,42,92,0) 50%, rgba(15,42,92,.18) 100%); opacity: 1; transition: opacity 400ms ease; pointer-events: none; }
.r2-portfolio-row:hover .r2-portfolio-row__media-tint { opacity: .4; }
.r2-portfolio-row__num { position: absolute; top: var(--st-space-4); left: var(--st-space-4); font-size: clamp(2.4rem, 5vw, 4rem); font-weight: 700; line-height: 1; letter-spacing: -.02em; color: #fff; text-shadow: 0 4px 16px rgba(15,42,92,.35); font-family: var(--st-font-display, inherit); z-index: 2; }

/* Body */
.r2-portfolio-row__body { padding: 0; }
.r2-portfolio-row__eyebrow { display: inline-block; font-size: .72rem; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: var(--st-blue); border-left: 3px solid var(--st-blue); padding-left: var(--st-space-3); margin-bottom: var(--st-space-3); }
.r2-portfolio-row__title { font-size: clamp(1.6rem, 2.8vw, 2.1rem); font-weight: 700; color: var(--st-navy); line-height: 1.1; margin: 0 0 var(--st-space-3); }
.r2-portfolio-row__title a { color: inherit; text-decoration: none; transition: color 200ms ease; }
.r2-portfolio-row__title a:hover { color: var(--st-blue); }
.r2-portfolio-row__apps { font-size: .92rem; font-weight: 600; color: var(--st-light-gray); letter-spacing: .02em; margin: 0 0 var(--st-space-5); padding-bottom: var(--st-space-4); border-bottom: 1px solid var(--st-hairline-gray); }
.r2-portfolio-row__specs { list-style: none; padding: 0; margin: 0 0 var(--st-space-5); display: flex; flex-wrap: wrap; gap: var(--st-space-5); border-block: 1px solid var(--st-hairline-gray); padding-block: var(--st-space-3); }
.r2-portfolio-row__specs li { display: flex; flex-direction: column; gap: 2px; }
.r2-portfolio-row__specs li span { font-size: .68rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--st-light-gray); }
.r2-portfolio-row__specs li strong { font-size: .98rem; color: var(--st-navy); font-weight: 600; }
.r2-portfolio-row__desc { font-size: 1rem; line-height: 1.7; color: var(--st-dark-gray); margin: 0 0 var(--st-space-5); }
.r2-portfolio-row__cta { display: inline-flex; align-items: center; gap: 10px; padding: 14px 26px; background: var(--st-blue); color: #fff; font-size: .8rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; text-decoration: none; transition: background 200ms ease, gap 200ms ease, box-shadow 200ms ease; align-self: flex-start; }
.r2-portfolio-row__cta:hover { background: var(--st-navy); gap: 14px; color: #fff; box-shadow: 0 10px 24px rgba(15,42,92,.18); }
.r2-portfolio-row__cta span { font-size: 1.1rem; transition: transform 200ms ease; }
.r2-portfolio-row__cta:hover span { transform: translateX(2px); }

@media (max-width: 880px) {
	.r2-portfolio-row { grid-template-columns: 1fr; gap: var(--st-space-5); }
	.r2-portfolio-row:nth-child(even) { grid-template-columns: 1fr; }
	.r2-portfolio-row:nth-child(even) .r2-portfolio-row__media { order: 0; }
	.r2-portfolio-row__media { aspect-ratio: 1 / 1; max-height: 420px; max-width: 100%; }
	.r2-portfolio__rows { gap: var(--st-space-8); }
	.r2-portfolio { padding-block: var(--st-space-9); }
}

/* Reveal animation for non-row blocks (quality split, methodology steps, pull-quote) */
[data-reveal]:not(.r2-portfolio-row) { opacity: 0; transform: translateY(28px); transition: opacity 600ms cubic-bezier(.22,.61,.36,1), transform 600ms cubic-bezier(.22,.61,.36,1); }
[data-reveal]:not(.r2-portfolio-row).is-revealed { opacity: 1; transform: translateY(0); }
.r2-about-flow__step[data-reveal]:nth-child(2) { transition-delay: 80ms; }
.r2-about-flow__step[data-reveal]:nth-child(3) { transition-delay: 160ms; }
.r2-about-flow__step[data-reveal]:nth-child(4) { transition-delay: 240ms; }
@media (prefers-reduced-motion: reduce) {
	.r2-portfolio-row, [data-reveal]:not(.r2-portfolio-row) { opacity: 1; transform: none; transition: none; }
	.r2-portfolio-row__media img { transition: none; }
	.r2-portfolio-row:hover .r2-portfolio-row__media img { transform: none; }
}

/* [F] Quality & Manufacturing — Off-White section, image height capped */
.r2-prod-quality { background: var(--st-off-white); border-block: 1px solid var(--st-hairline-gray); padding-block: 120px; }
.r2-prod-quality__grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: var(--st-space-8); align-items: center; max-width: 1320px; margin-inline: auto; }
.r2-prod-quality__media { position: relative; aspect-ratio: 4 / 3; max-height: 480px; overflow: hidden; background: var(--st-white); border: 1px solid var(--st-hairline-gray); border-radius: 12px; }
.r2-prod-quality__media picture, .r2-prod-quality__media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.r2-prod-quality__body { padding: 0; }
.r2-prod-quality__eyebrow { display: inline-block; font-size: .78rem; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: var(--st-blue); border-left: 3px solid var(--st-blue); padding-left: var(--st-space-3); margin-bottom: var(--st-space-4); }
.r2-prod-quality__title { font-size: clamp(1.6rem, 2.6vw, 2.1rem); font-weight: 700; color: var(--st-navy); line-height: 1.15; margin: 0 0 var(--st-space-5); }
.r2-prod-quality__body p { font-size: 1rem; line-height: 1.7; color: var(--st-dark-gray); margin: 0 0 var(--st-space-4); }
@media (max-width: 880px) {
	.r2-prod-quality { padding-block: var(--st-space-9); }
	.r2-prod-quality__grid { grid-template-columns: 1fr; gap: var(--st-space-6); }
	.r2-prod-quality__media { aspect-ratio: 16 / 10; max-height: 320px; }
}

/* [H] Standards strip — full-width Navy band with badges */
.r2-prod-standards { padding-block: var(--st-space-8); background: var(--st-white); border-bottom: 1px solid var(--st-hairline-gray); }
.r2-prod-standards__label { display: block; font-size: .78rem; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: var(--st-blue); margin-bottom: var(--st-space-5); text-align: center; }
.r2-prod-standards .r2-about-badges { margin: 0; }

/* [I] Pull-quote closing — Navy section with editorial statement */
.r2-prod-pullquote { background: var(--st-navy); color: #fff; padding-block: 120px; }
.r2-prod-pullquote__inner { max-width: 920px; margin-inline: auto; text-align: center; padding-inline: var(--st-space-5); border-block: 1px solid rgba(255,255,255,.16); padding-block: var(--st-space-7); }
.r2-prod-pullquote__inner p { font-size: clamp(1.2rem, 2.4vw, 1.7rem); line-height: 1.4; font-weight: 400; margin: 0 0 var(--st-space-5); color: #fff; font-style: italic; }
.r2-prod-pullquote__inner p::before { content: "\201C"; display: block; font-size: 3rem; line-height: 1; color: var(--st-sky); margin-bottom: var(--st-space-3); font-style: normal; }
.r2-prod-pullquote__inner footer { font-size: .72rem; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: var(--st-sky); }

/* Contact hero — FULL-WIDTH banner with title overlaid + container-aligned text */
.r2-contact-hero-banner { position: relative; width: 100%; aspect-ratio: 21 / 8; min-height: 380px; max-height: 560px; margin: 0; overflow: hidden; display: flex; align-items: center; }
.r2-contact-hero-banner picture, .r2-contact-hero-banner img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; }
.r2-contact-hero-banner__tint { position: absolute; inset: 0; background: linear-gradient(115deg, rgba(15,42,92,.88) 0%, rgba(15,42,92,.55) 55%, rgba(15,42,92,.20) 100%); z-index: 1; }
.r2-contact-hero-banner__inner { position: relative; z-index: 2; width: 100%; color: #fff; }
.r2-contact-hero-banner__inner > .st-container { width: 100%; }
.r2-contact-hero-banner__label { display: inline-block; font-size: .8rem; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: var(--st-sky); border-left: 3px solid var(--st-sky); padding-left: var(--st-space-3); margin-bottom: var(--st-space-3); }
.r2-contact-hero-banner__title { font-size: clamp(2rem, 4.4vw, 3rem); line-height: 1.1; font-weight: 700; color: #fff; margin: 0 0 var(--st-space-3); max-width: 780px; }
.r2-contact-hero-banner__sub { font-size: clamp(.95rem, 1.4vw, 1.1rem); line-height: 1.55; color: rgba(255,255,255,.92); margin: 0; max-width: 640px; }
@media (max-width: 768px) {
	.r2-contact-hero-banner { aspect-ratio: auto; min-height: 320px; max-height: none; padding-block: var(--st-space-7); }
}

/* Form card — fills the .r2-split__main column with proper presence */
.r2-contact-split .r2-split__main .st-form { max-width: none; }
.r2-contact-form-card { background: var(--st-white); border: 1px solid var(--st-hairline-gray); border-top: 3px solid var(--st-blue); padding: var(--st-space-6) var(--st-space-6) var(--st-space-5); }
.r2-contact-form-card__note { font-size: .88rem; line-height: 1.55; color: var(--st-light-gray); margin: 0 0 var(--st-space-5); padding-bottom: var(--st-space-4); border-bottom: 1px solid var(--st-hairline-gray); }
@media (max-width: 768px) { .r2-contact-form-card { padding: var(--st-space-5); } }

/* Response promise — Navy panel with Sky left rail (matches About QA tone) */
.r2-rail-promise { background: var(--st-navy); color: #fff; padding: var(--st-space-5); border-left: 4px solid var(--st-sky); margin-bottom: var(--st-space-4); }
.r2-rail-promise__eyebrow { display: block; font-size: .7rem; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: var(--st-sky); margin-bottom: var(--st-space-2); }
.r2-rail-promise__line { font-size: .95rem; line-height: 1.55; margin: 0; color: rgba(255,255,255,.9); }
.r2-rail-promise__line strong { color: #fff; }

/* Contact channels list — hairline-separated rows, monospace label */
.r2-rail-channels { list-style: none; padding: 0; margin: 0; background: var(--st-white); border: 1px solid var(--st-hairline-gray); }
.r2-rail-channel { padding: var(--st-space-4); border-top: 1px solid var(--st-hairline-gray); display: flex; flex-direction: column; gap: 4px; }
.r2-rail-channel:first-child { border-top: 0; }
.r2-rail-channel__label { font-size: .68rem; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: var(--st-light-gray); }
.r2-rail-channel__value { font-size: .98rem; font-weight: 600; color: var(--st-navy); text-decoration: none; line-height: 1.3; word-break: break-word; }
a.r2-rail-channel__value:hover { color: var(--st-blue); }
.r2-rail-channel__sub { font-size: .8rem; color: var(--st-light-gray); line-height: 1.4; }

/* About FAQ — 2-column layout: side photo + accordion. Used on every
   About sub-page via the page.php content filter (r2_about_faq_replace). */
.r2-about-faq-grid { display: grid; grid-template-columns: 1fr 1.35fr; gap: var(--st-space-7); align-items: stretch; margin-block: var(--st-space-9); }
.r2-about-faq-grid__media { position: relative; overflow: hidden; min-height: 420px; }
.r2-about-faq-grid__media picture, .r2-about-faq-grid__media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; }
.r2-about-faq-grid__body { display: flex; flex-direction: column; justify-content: center; }
.r2-about-faq-grid__label { display: inline-block; font-size: .78rem; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: var(--st-blue); border-left: 3px solid var(--st-blue); padding-left: var(--st-space-3); margin-bottom: var(--st-space-3); }
.r2-about-faq-grid__title { font-size: clamp(1.5rem, 2.6vw, 2rem); color: var(--st-navy); margin: 0 0 var(--st-space-5); line-height: 1.2; }
@media (max-width: 980px) {
	.r2-about-faq-grid { grid-template-columns: 1fr; gap: var(--st-space-5); }
	.r2-about-faq-grid__media { min-height: 0; aspect-ratio: 16 / 9; }
}

/* FAQ accordion — native <details>/<summary> on hairline-separated rows */
.r2-faq-acc { border: 1px solid var(--st-hairline-gray); border-top: 3px solid var(--st-blue); background: var(--st-white); margin-block: var(--st-space-4) var(--st-space-6); }
.r2-faq-item { border-top: 1px solid var(--st-hairline-gray); }
.r2-faq-item:first-child { border-top: 0; }
.r2-faq-item__q { list-style: none; cursor: pointer; padding: var(--st-space-4) var(--st-space-5); font-size: 1rem; font-weight: 600; color: var(--st-navy); position: relative; padding-right: var(--st-space-7); }
.r2-faq-item__q::-webkit-details-marker { display: none; }
.r2-faq-item__q::after { content: "+"; position: absolute; right: var(--st-space-5); top: 50%; transform: translateY(-50%); font-size: 1.4rem; font-weight: 400; color: var(--st-blue); transition: transform 200ms ease; line-height: 1; }
.r2-faq-item[open] .r2-faq-item__q::after { content: "\2212"; transform: translateY(-50%) rotate(0); }
.r2-faq-item__q:hover { background: var(--st-off-white); }
.r2-faq-item__a { padding: 0 var(--st-space-5) var(--st-space-5); }
.r2-faq-item__a p { font-size: .95rem; line-height: 1.65; color: var(--st-dark-gray); margin: 0; max-width: 760px; }

/* ─── FAMILY PAGE COMPONENTS (.r2-fam-*) ─────────────────────────────────────
   BASF / Evonik visual register. Editorial flow, real photography, dark Navy
   trust band, hairline rules. Width is owned by .st-container; no per element
   max width inside this block. Locked 2026-06-11 Session 22 redesign.

   Layout sequence on /products/[family]/:
     [C] r2-fam-stats     — hairline stat strip below hero
     [D] r2-fam-lead      — 2 col: editorial intro + Quick Answer
     [E] r2-fam-mech      — 2 col: typographic mechanism panel + body
     [F] r2-fam-raw       — 2 col: manufacturing photo + body
     [G] r2-fam-grades    — stacked grade rows with product photos
     [H] r2-fam-apps      — alternating photo + text application rows
     [I] r2-fam-why       — Navy full bleed trust band
     [J] r2-fam-selection — duty to grade table
     [K] r2-fam-faq       — wrapper for .r2-faq-acc */

/* [C] Stat strip — sits directly under the hero, hairline separated cells */
.r2-fam-stats { background: var(--st-white); border-bottom: 1px solid var(--st-hairline-gray); }
.r2-fam-stats__grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; }
.r2-fam-stats__cell { padding: var(--st-space-5) var(--st-space-5); border-left: 1px solid var(--st-hairline-gray); }
.r2-fam-stats__cell:first-child { border-left: 0; }
.r2-fam-stats__label { display: block; font-size: .68rem; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: var(--st-light-gray); margin: 0 0 var(--st-space-2); }
.r2-fam-stats__value { display: block; font-size: 1.04rem; font-weight: 700; color: var(--st-navy); line-height: 1.3; }

/* [D] Lead band — editorial 2 col, headline left, Quick Answer right.
   Padding scales via clamp across all 6 tiers (xs → xxl). No per tier media query needed. */
.r2-fam-lead { background: var(--st-off-white); padding-block: clamp(72px, 8vw, 120px); border-bottom: 1px solid var(--st-hairline-gray); }
.r2-fam-lead__grid { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: var(--st-space-8); align-items: start; }
.r2-fam-lead__main { }
.r2-fam-lead__eyebrow { display: inline-block; font-size: .78rem; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: var(--st-blue); border-left: 3px solid var(--st-blue); padding-left: var(--st-space-3); margin-bottom: var(--st-space-4); }
.r2-fam-lead__headline { font-size: clamp(2rem, 3.6vw, 2.8rem); line-height: 1.12; font-weight: 700; color: var(--st-navy); margin: 0 0 var(--st-space-6); }
.r2-fam-lead__copy p { font-size: 1.04rem; line-height: 1.75; color: var(--st-dark-gray); margin: 0 0 var(--st-space-5); }
.r2-fam-lead__copy p:last-child { margin-bottom: 0; }
.r2-fam-lead__side { position: sticky; top: 96px; }

/* [E] Mechanism band — typographic panel left, editorial body right */
.r2-fam-mech { background: var(--st-white); padding-block: clamp(72px, 8vw, 120px); }
.r2-fam-mech__grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: var(--st-space-8); align-items: center; }
.r2-fam-mech__panel { background: var(--st-navy); color: #fff; padding: var(--st-space-8) var(--st-space-7); position: relative; min-height: 360px; display: flex; flex-direction: column; justify-content: center; overflow: hidden; }
.r2-fam-mech__panel::before { content: ""; position: absolute; top: 0; left: 0; width: 100%; height: 4px; background: linear-gradient(90deg, var(--st-sky) 0%, var(--st-blue) 100%); }
.r2-fam-mech__panel-eyebrow { display: block; font-size: .72rem; font-weight: 600; letter-spacing: .22em; text-transform: uppercase; color: var(--st-sky); margin-bottom: var(--st-space-5); }
.r2-fam-mech__panel-statement { font-size: clamp(1.2rem, 1.8vw, 1.5rem); font-weight: 600; line-height: 1.35; color: #fff; margin: 0; }
.r2-fam-mech__panel-foot { display: flex; gap: var(--st-space-5); margin-top: var(--st-space-7); padding-top: var(--st-space-5); border-top: 1px solid rgba(255,255,255,.16); flex-wrap: wrap; }
.r2-fam-mech__panel-stat { color: rgba(255,255,255,.78); font-size: .85rem; line-height: 1.5; }
.r2-fam-mech__panel-stat strong { display: block; color: #fff; font-size: 1.1rem; font-weight: 700; margin-bottom: 2px; }
.r2-fam-mech__body { }
.r2-fam-mech__body-eyebrow { display: inline-block; font-size: .78rem; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: var(--st-blue); margin-bottom: var(--st-space-3); }
.r2-fam-mech__body-title { font-size: clamp(1.6rem, 2.6vw, 2.1rem); color: var(--st-navy); margin: 0 0 var(--st-space-5); line-height: 1.2; }
.r2-fam-mech__body p { font-size: 1rem; line-height: 1.7; color: var(--st-dark-gray); margin: 0 0 var(--st-space-4); }
.r2-fam-mech__body p:last-child { margin-bottom: 0; }

/* [F] Raw material + manufacturing — photo left, editorial right */
.r2-fam-raw { background: var(--st-off-white); padding-block: clamp(72px, 8vw, 120px); border-block: 1px solid var(--st-hairline-gray); }
/* Image column narrower (0.7fr vs 1.4fr body) and square aspect so the product
   close up reads as a supporting detail, not as the dominant element. */
.r2-fam-raw__grid { display: grid; grid-template-columns: minmax(0, 0.7fr) minmax(0, 1.4fr); gap: var(--st-space-8); align-items: center; }
/* Raw material image: container takes the image's NATURAL aspect (no fixed
   ratio, no whitespace, no cropping). The container height is set by the
   source image rather than forced to 1:1 square. */
.r2-fam-raw__media { position: relative; overflow: hidden; background: var(--st-white); border: 1px solid var(--st-hairline-gray); }
.r2-fam-raw__media picture { display: block; width: 100%; }
.r2-fam-raw__media img { width: 100%; height: auto; display: block; }
.r2-fam-raw__media-caption { position: absolute; bottom: 0; left: 0; right: 0; padding: var(--st-space-3) var(--st-space-4); background: linear-gradient(to top, rgba(15,42,92,.85), rgba(15,42,92,0)); color: #fff; font-size: .76rem; letter-spacing: .14em; text-transform: uppercase; font-weight: 600; }
.r2-fam-raw__body-eyebrow { display: inline-block; font-size: .78rem; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: var(--st-blue); border-left: 3px solid var(--st-blue); padding-left: var(--st-space-3); margin-bottom: var(--st-space-3); }
.r2-fam-raw__body-title { font-size: clamp(1.6rem, 2.6vw, 2.1rem); color: var(--st-navy); margin: 0 0 var(--st-space-5); line-height: 1.2; }
.r2-fam-raw__body p { font-size: 1rem; line-height: 1.7; color: var(--st-dark-gray); margin: 0 0 var(--st-space-4); }
.r2-fam-raw__body p:last-child { margin-bottom: 0; }

/* Shared section header used by Grades / Apps / Selection / FAQ */
.r2-fam-section-head { margin-bottom: var(--st-space-8); }
.r2-fam-section-head__eyebrow { display: inline-block; font-size: .78rem; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: var(--st-blue); border-left: 3px solid var(--st-blue); padding-left: var(--st-space-3); margin-bottom: var(--st-space-3); }
.r2-fam-section-head__title { font-size: clamp(1.8rem, 3vw, 2.4rem); color: var(--st-navy); margin: 0 0 var(--st-space-4); line-height: 1.15; font-weight: 700; }
.r2-fam-section-head__lead { font-size: 1rem; line-height: 1.65; color: var(--st-dark-gray); margin: 0; }

/* [G] Grades catalogue — stacked rows with real product photos */
.r2-fam-grades { background: var(--st-white); padding-block: clamp(72px, 8vw, 120px); }
.r2-fam-grades__rows { display: flex; flex-direction: column; gap: var(--st-space-7); }
/* align-items: start keeps the 4:3 media cell from being stretched vertically
   by the taller body cell — without this, aspect-ratio expands the WIDTH of
   the media to maintain 4:3 against the stretched height, and the image
   overflows the 360px column and covers the title text in column 2. */
.r2-fam-grade-row { display: grid; grid-template-columns: minmax(0, 360px) minmax(0, 1fr); gap: var(--st-space-7); align-items: start; padding: var(--st-space-6); border: 1px solid var(--st-hairline-gray); background: var(--st-white); opacity: 0; transform: translateY(28px); transition: opacity 700ms cubic-bezier(.22,.61,.36,1), transform 700ms cubic-bezier(.22,.61,.36,1), border-color 200ms ease, box-shadow 240ms ease; }
.r2-fam-grade-row.is-revealed { opacity: 1; transform: translateY(0); }
.r2-fam-grade-row:hover { border-color: var(--st-blue); box-shadow: 0 14px 32px rgba(15,42,92,.10); }
/* Grade row image: container takes the image's NATURAL aspect (no fixed
   ratio, no whitespace, no cropping). Each grade row therefore has the
   image height set by the source file rather than by a forced box. */
.r2-fam-grade-row__media { position: relative; width: 100%; overflow: hidden; background: var(--st-off-white); }
.r2-fam-grade-row__media picture { display: block; width: 100%; }
.r2-fam-grade-row__media img { width: 100%; height: auto; display: block; transition: transform 600ms cubic-bezier(.22,.61,.36,1); }
.r2-fam-grade-row:hover .r2-fam-grade-row__media img { transform: scale(1.04); }
.r2-fam-grade-row__body { display: flex; flex-direction: column; }
.r2-fam-grade-row__eyebrow { display: block; font-size: .72rem; font-weight: 600; letter-spacing: .2em; text-transform: uppercase; color: var(--st-light-gray); margin-bottom: var(--st-space-3); }
.r2-fam-grade-row__title { font-size: clamp(1.4rem, 2.2vw, 1.7rem); font-weight: 700; color: var(--st-navy); margin: 0 0 var(--st-space-4); line-height: 1.2; }
.r2-fam-grade-row__title a { color: inherit; text-decoration: none; }
.r2-fam-grade-row__title a:hover { color: var(--st-blue); }
.r2-fam-grade-row__chips { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; background: var(--st-hairline-gray); border: 1px solid var(--st-hairline-gray); margin: 0 0 var(--st-space-5); }
.r2-fam-grade-row__chip { background: var(--st-off-white); padding: var(--st-space-3) var(--st-space-4); }
.r2-fam-grade-row__chip dt { font-size: .65rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--st-light-gray); margin: 0 0 4px; }
.r2-fam-grade-row__chip dd { font-size: .92rem; font-weight: 700; color: var(--st-navy); margin: 0; line-height: 1.3; }
.r2-fam-grade-row__desc { font-size: .98rem; line-height: 1.65; color: var(--st-dark-gray); margin: 0 0 var(--st-space-5); }
.r2-fam-grade-row__foot { display: flex; gap: var(--st-space-6); align-items: center; margin-top: auto; padding-top: var(--st-space-4); border-top: 1px solid var(--st-hairline-gray); }
.r2-fam-grade-row__cta { font-size: .92rem; font-weight: 600; color: var(--st-blue); text-decoration: none; letter-spacing: .04em; display: inline-flex; align-items: center; gap: var(--st-space-2); transition: color 200ms ease, gap 200ms ease; }
.r2-fam-grade-row__cta:hover { color: var(--st-navy); gap: var(--st-space-3); }
.r2-fam-grade-row__cta span { transition: transform 200ms ease; }
.r2-fam-grade-row__cta:hover span { transform: translateX(2px); }
.r2-fam-grade-row__tds { font-size: .82rem; font-weight: 600; color: var(--st-light-gray); text-decoration: none; letter-spacing: .04em; display: inline-flex; align-items: center; gap: 4px; }
.r2-fam-grade-row__tds:hover { color: var(--st-blue); }

/* [H] Applications — large photo tiles, PuraSpecs hover reveal register.
   Default : photo + bottom Navy gradient + title at bottom left.
   Hover   : Navy panel slides up FROM THE BOTTOM covering the photo; inside
             the panel, title + description sit at the BOTTOM of the tile and
             slide in from the LEFT as the panel rises.
   On touch devices (no hover) the default state is shown permanently. */
/* Section padding scales smoothly across the 6 responsive tiers — single clamp
   instead of multiple media queries. 48px on xs phones → 96px on xxl screens. */
.r2-fam-apps { background: var(--st-off-white); padding-block: clamp(48px, 6vw, 96px); border-block: 1px solid var(--st-hairline-gray); }
/* Mondrian asymmetric grid — 5 columns, two rows of fixed height, NO GAPS.
   Row 1: tile 1 spans cols 1-3 (wide) + tile 2 spans cols 4-5 (narrow).
   Row 2: tile 3 spans cols 1-2 (narrow) + tile 4 spans cols 3-5 (wide).
   Row heights scale 260px → 360px via clamp so the whole 2x2 fits one viewport
   on every tier from md tablet through xxl large screen. */
.r2-fam-apps__tiles { display: grid; grid-template-columns: repeat(5, 1fr); grid-template-rows: clamp(260px, 26vw, 360px) clamp(260px, 26vw, 360px); gap: 0; }
.r2-fam-app-tile { position: relative; display: block; width: 100%; height: 100%; overflow: hidden; background: var(--st-navy); text-decoration: none; color: inherit; opacity: 0; transform: translateY(28px); transition: opacity 700ms cubic-bezier(.22,.61,.36,1), transform 700ms cubic-bezier(.22,.61,.36,1); }
.r2-fam-app-tile:nth-child(1) { grid-column: 1 / 4; grid-row: 1; }
.r2-fam-app-tile:nth-child(2) { grid-column: 4 / 6; grid-row: 1; }
.r2-fam-app-tile:nth-child(3) { grid-column: 1 / 3; grid-row: 2; }
.r2-fam-app-tile:nth-child(4) { grid-column: 3 / 6; grid-row: 2; }
.r2-fam-app-tile.is-revealed { opacity: 1; transform: translateY(0); }
.r2-fam-app-tile picture { position: absolute; inset: 0; display: block; width: 100%; height: 100%; }
.r2-fam-app-tile img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 800ms cubic-bezier(.22,.61,.36,1); }

/* Default state layers — bottom scrim + bottom title */
.r2-fam-app-tile__scrim { position: absolute; inset: 0; background: linear-gradient(to top, rgba(15,42,92,.85) 0%, rgba(15,42,92,.45) 32%, rgba(15,42,92,.08) 60%, rgba(15,42,92,0) 100%); transition: opacity 350ms ease; }
.r2-fam-app-tile__title { position: absolute; left: 0; right: 0; bottom: 0; padding: var(--st-space-6); font-size: clamp(1.2rem, 2vw, 1.6rem); font-weight: 700; color: #fff; line-height: 1.2; margin: 0; letter-spacing: -.005em; transition: opacity 250ms ease; }

/* Hover state layer — solid Navy panel slides in FROM THE LEFT.
   Background = var(--st-navy) (palette token, no opacity blend).
   Content sits at the bottom of the panel; inner text fades in with a slight
   stagger as the panel arrives. */
.r2-fam-app-tile__hover { position: absolute; inset: 0; background: rgba(15, 42, 92, .72); padding: var(--st-space-6); display: flex; flex-direction: column; justify-content: flex-end; pointer-events: none; transform: translateX(-100%); transition: transform 540ms cubic-bezier(.22,.61,.36,1); }
.r2-fam-app-tile__hover-title { font-size: clamp(1.2rem, 2vw, 1.6rem); font-weight: 700; color: var(--st-white); margin: 0 0 var(--st-space-3); line-height: 1.2; letter-spacing: -.005em; opacity: 0; transition: opacity 320ms ease 220ms; }
.r2-fam-app-tile__hover-desc { font-size: .94rem; line-height: 1.65; color: var(--st-white); margin: 0 0 var(--st-space-4); opacity: 0; transition: opacity 320ms ease 300ms; }
.r2-fam-app-tile__hover-cta { display: inline-flex; align-items: center; gap: var(--st-space-2); font-size: .82rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--st-sky); opacity: 0; transition: opacity 320ms ease 380ms, gap 200ms ease; }
.r2-fam-app-tile__hover-cta span { transition: transform 200ms ease; }

/* Reveal mechanics — only on devices that can actually hover */
@media (hover: hover) {
	.r2-fam-app-tile:hover .r2-fam-app-tile__scrim,
	.r2-fam-app-tile:focus-within .r2-fam-app-tile__scrim { opacity: 0; }
	.r2-fam-app-tile:hover .r2-fam-app-tile__title,
	.r2-fam-app-tile:focus-within .r2-fam-app-tile__title { opacity: 0; }
	.r2-fam-app-tile:hover .r2-fam-app-tile__hover,
	.r2-fam-app-tile:focus-within .r2-fam-app-tile__hover { transform: translateX(0); }
	.r2-fam-app-tile:hover .r2-fam-app-tile__hover-title,
	.r2-fam-app-tile:focus-within .r2-fam-app-tile__hover-title,
	.r2-fam-app-tile:hover .r2-fam-app-tile__hover-desc,
	.r2-fam-app-tile:focus-within .r2-fam-app-tile__hover-desc,
	.r2-fam-app-tile:hover .r2-fam-app-tile__hover-cta,
	.r2-fam-app-tile:focus-within .r2-fam-app-tile__hover-cta { opacity: 1; }
	.r2-fam-app-tile:hover img,
	.r2-fam-app-tile:focus-within img { transform: scale(1.04); }
	.r2-fam-app-tile:hover .r2-fam-app-tile__hover-cta span { transform: translateX(3px); }
}

a.r2-fam-app-tile:focus-visible { outline: 3px solid var(--st-blue); outline-offset: 3px; }

/* [I] Why SorbiTech — full bleed Navy trust band, 4 points */
.r2-fam-why { background: var(--st-navy); color: #fff; padding-block: clamp(72px, 8vw, 120px); border-top: 4px solid var(--st-sky); }
.r2-fam-why__head { margin-bottom: var(--st-space-8); }
.r2-fam-why__eyebrow { display: inline-block; font-size: .78rem; font-weight: 600; letter-spacing: .22em; text-transform: uppercase; color: var(--st-sky); margin-bottom: var(--st-space-3); }
.r2-fam-why__title { font-size: clamp(1.8rem, 3.2vw, 2.4rem); color: #fff; margin: 0 0 var(--st-space-3); line-height: 1.15; font-weight: 700; }
.r2-fam-why__lead { font-size: 1.05rem; line-height: 1.65; color: rgba(255,255,255,.82); margin: 0; }
.r2-fam-why__grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--st-space-6); }
.r2-fam-why-point { padding-top: var(--st-space-5); border-top: 2px solid var(--st-sky); }
.r2-fam-why-point__title { font-size: 1.1rem; font-weight: 700; color: #fff; margin: 0 0 var(--st-space-3); line-height: 1.3; }
.r2-fam-why-point__desc { font-size: .92rem; line-height: 1.6; color: rgba(255,255,255,.78); margin: 0; }

/* [J] Selection guidance — clean duty to grade table */
.r2-fam-selection { background: var(--st-white); padding-block: clamp(72px, 8vw, 120px); }
.r2-fam-selection__table { border: 1px solid var(--st-hairline-gray); border-top: 3px solid var(--st-blue); background: var(--st-white); }
.r2-fam-selection__head { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.4fr); background: var(--st-off-white); border-bottom: 1px solid var(--st-hairline-gray); }
.r2-fam-selection__head > div { padding: var(--st-space-4) var(--st-space-5); font-size: .72rem; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; color: var(--st-navy); }
.r2-fam-selection__head > div + div { border-left: 1px solid var(--st-hairline-gray); }
.r2-fam-selection__row { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.4fr); border-bottom: 1px solid var(--st-hairline-gray); opacity: 0; transform: translateY(12px); transition: opacity 500ms cubic-bezier(.22,.61,.36,1), transform 500ms cubic-bezier(.22,.61,.36,1), background 200ms ease; }
.r2-fam-selection__row.is-revealed { opacity: 1; transform: translateY(0); }
.r2-fam-selection__row:last-child { border-bottom: 0; }
.r2-fam-selection__row:hover { background: var(--st-off-white); }
.r2-fam-selection__duty { padding: var(--st-space-4) var(--st-space-5); font-size: .94rem; font-weight: 600; color: var(--st-dark-gray); line-height: 1.5; }
.r2-fam-selection__grade { padding: var(--st-space-4) var(--st-space-5); font-size: .94rem; line-height: 1.55; color: var(--st-dark-gray); border-left: 1px solid var(--st-hairline-gray); }

/* [K] FAQ wrapper — uses existing .r2-faq-acc accordion */
.r2-fam-faq { background: var(--st-off-white); padding-block: clamp(72px, 8vw, 120px); border-top: 1px solid var(--st-hairline-gray); }

/* ── System Archive — Engineering Catalogue (.r2-sys-*) ──────────────────
   Used exclusively by archive-system.php hub (not is_cat_tax).
   [C] r2-sys-lead       — two-col editorial intro + quick answer aside
   [D] r2-sys-catalogue  — 5 category photo cards (2+3 asymmetric grid)
   [D2] r2-sys-all       — all 18 systems compact card grid (4 cols)
   [E] r2-sys-scope      — dark navy 4-col delivery scope band
   [F] r2-sys-standards  — dark gray standards strip
   ─────────────────────────────────────────────────────────────────────── */

/* [C] Lead editorial */
.r2-sys-lead { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: var(--st-space-10); align-items: start; }
.r2-sys-lead__paras { display: flex; flex-direction: column; gap: var(--st-space-5); }
.r2-sys-lead__paras p { font-size: 1.05rem; line-height: 1.75; color: var(--st-dark-gray); margin: 0; }
.r2-sys-qa-box { background: var(--st-off-white); border-left: 4px solid var(--st-blue); padding: var(--st-space-6); border-radius: 0 4px 4px 0; }
.r2-sys-qa-box__label { display: block; font-size: .7rem; font-weight: 700; letter-spacing: .22em; text-transform: uppercase; color: var(--st-blue); margin-bottom: var(--st-space-3); }
.r2-sys-qa-box__text { font-size: .95rem; line-height: 1.7; color: var(--st-dark-gray); margin: 0; }

/* [D] Catalogue section */
.r2-sys-catalogue { padding-block: 0; }
.r2-sys-catalogue__head { padding-top: clamp(48px, 6vw, 80px); max-width: 680px; }
.r2-sys-catalogue__lead { font-size: 1rem; line-height: 1.7; color: var(--st-dark-gray); margin: var(--st-space-3) 0 0; }
.r2-sys-cat-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; margin-top: clamp(32px, 4vw, 48px); }
.r2-sys-cat-card { position: relative; overflow: hidden; border-radius: 4px; background: var(--st-navy); }
.r2-sys-cat-card:nth-child(-n+2) { grid-column: span 3; min-height: 360px; }
.r2-sys-cat-card:nth-child(n+3)  { grid-column: span 2; min-height: 260px; }
.r2-sys-cat-card__img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.r2-sys-cat-card:hover .r2-sys-cat-card__img { transform: scale(1.04); }
.r2-sys-cat-card__overlay { position: absolute; inset: 0; background: linear-gradient(to top, rgba(10,24,55,.92) 0%, rgba(10,24,55,.55) 50%, rgba(10,24,55,.15) 100%); }
.r2-sys-cat-card__body { position: absolute; bottom: 0; left: 0; right: 0; padding: clamp(20px, 3vw, 28px); z-index: 1; }
.r2-sys-cat-card__count { display: inline-block; font-size: .68rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--st-sky); background: rgba(0,120,200,.2); border: 1px solid rgba(0,150,255,.3); border-radius: 2px; padding: 3px 10px; margin-bottom: var(--st-space-3); }
.r2-sys-cat-card__title { font-size: clamp(1.1rem, 1.6vw, 1.45rem); font-weight: 800; color: #fff; line-height: 1.2; margin: 0 0 var(--st-space-2); letter-spacing: -.015em; }
.r2-sys-cat-card__desc { font-size: .85rem; line-height: 1.55; color: rgba(255,255,255,.75); margin: 0 0 var(--st-space-4); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.r2-sys-cat-card__link { display: inline-flex; align-items: center; gap: 6px; font-size: .82rem; font-weight: 700; color: #fff; text-decoration: none; border-bottom: 1.5px solid rgba(255,255,255,.4); padding-bottom: 2px; transition: border-color .18s, gap .18s; }
.r2-sys-cat-card__link:hover, .r2-sys-cat-card__link:focus-visible { border-bottom-color: var(--st-sky); gap: 10px; outline: none; }
.r2-sys-cat-card__no-img { position: absolute; inset: 0; background: linear-gradient(135deg, var(--st-navy) 0%, rgba(15,42,92,.7) 100%); }

/* [D2] All systems compact card grid */
.r2-sys-all { padding-block: clamp(48px, 6vw, 72px); }
.r2-sys-all__head { display: flex; align-items: flex-end; justify-content: space-between; flex-wrap: wrap; gap: var(--st-space-4); margin-bottom: clamp(28px, 3.5vw, 40px); }
.r2-sys-all__grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: clamp(12px, 1.8vw, 20px); }
.r2-sys-card { border: 1px solid var(--st-hairline-gray); border-radius: 4px; overflow: hidden; background: #fff; transition: box-shadow .2s, transform .2s; }
.r2-sys-card:hover { box-shadow: 0 4px 20px rgba(15,42,92,.1); transform: translateY(-2px); }
.r2-sys-card__img { aspect-ratio: 16/9; overflow: hidden; background: var(--st-off-white); }
.r2-sys-card__img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.r2-sys-card__img-placeholder { width: 100%; height: 100%; background: linear-gradient(135deg, rgba(15,42,92,.06) 0%, rgba(15,42,92,.12) 100%); }
.r2-sys-card__body { padding: clamp(12px, 1.6vw, 18px); }
.r2-sys-card__cat { display: inline-block; font-size: .65rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--st-blue); background: rgba(15,42,92,.06); border-radius: 2px; padding: 2px 8px; margin-bottom: var(--st-space-2); }
.r2-sys-card__title { font-size: .97rem; font-weight: 700; color: var(--st-navy); line-height: 1.35; margin: 0 0 var(--st-space-2); }
.r2-sys-card__title a { color: inherit; text-decoration: none; }
.r2-sys-card__title a:hover { color: var(--st-blue); }
.r2-sys-card__cap { font-size: .78rem; color: var(--st-light-gray); margin: 0 0 var(--st-space-3); }
.r2-sys-card__link { font-size: .8rem; font-weight: 600; color: var(--st-blue); text-decoration: none; display: inline-flex; align-items: center; gap: 4px; }
.r2-sys-card__link:hover { gap: 7px; }

/* [E] Engineering Delivery Scope — dark navy band */
.r2-sys-scope { background: var(--st-navy); border-top: 4px solid var(--st-sky); padding-block: clamp(56px,7vw,96px); }
.r2-sys-scope__head { text-align: center; margin-bottom: clamp(40px,5vw,64px); }
.r2-sys-scope__eyebrow { display: block; font-size: .72rem; font-weight: 700; letter-spacing: .22em; text-transform: uppercase; color: var(--st-sky); margin-bottom: var(--st-space-3); }
.r2-sys-scope__title { font-size: clamp(1.5rem,2.8vw,2.1rem); font-weight: 700; color: #fff; margin: 0; line-height: 1.2; letter-spacing: -.015em; }
.r2-sys-scope__grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 0; }
.r2-sys-scope__cell { padding: clamp(28px,3vw,48px) clamp(24px,3vw,40px); border-left: 1px solid rgba(255,255,255,.12); }
.r2-sys-scope__cell:first-child { border-left: 0; }
.r2-sys-scope__step { display: block; font-size: 2.4rem; font-weight: 900; color: var(--st-sky); line-height: 1; margin-bottom: var(--st-space-4); font-variant-numeric: tabular-nums; letter-spacing: -.02em; }
.r2-sys-scope__name { font-size: 1rem; font-weight: 700; color: #fff; margin: 0 0 var(--st-space-3); line-height: 1.3; }
.r2-sys-scope__body { font-size: .88rem; line-height: 1.65; color: rgba(255,255,255,.75); margin: 0; }

/* [F] Standards strip */
.r2-sys-standards { background: var(--st-dark-gray); padding-block: 20px; }
.r2-sys-standards__inner { display: flex; align-items: center; flex-wrap: wrap; gap: 0; }
.r2-sys-standards__label { font-size: .7rem; font-weight: 700; letter-spacing: .2em; text-transform: uppercase; color: rgba(255,255,255,.5); padding-right: 28px; margin-right: 4px; border-right: 1px solid rgba(255,255,255,.15); white-space: nowrap; flex-shrink: 0; }
.r2-sys-standards__list { display: flex; flex-wrap: wrap; list-style: none; margin: 0; padding: 0; }
.r2-sys-standards__item { padding: 6px 20px; font-size: .8rem; font-weight: 600; color: rgba(255,255,255,.82); border-right: 1px solid rgba(255,255,255,.15); white-space: nowrap; }
.r2-sys-standards__item:last-child { border-right: 0; }

/* ── Responsive — aligned to the canonical 6 tier system in responsive.css ──
   xs   0-479    | sm  480-767  | md  768-1023
   lg   1024-1279 | xl  1280-1679 | xxl 1680+
   Per-tier padding is handled by clamp() on each section above; media queries
   here only handle LAYOUT changes (grid column counts, stacking). */

/* md and below (1023px ↓) — tablet portrait, mobile landscape, mobile portrait.
   2-col splits collapse to single column. Why grid drops from 4 → 2. */
@media (max-width: 1023px) {
	.r2-fam-stats__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
	.r2-fam-stats__cell { border-left: 0; border-top: 1px solid var(--st-hairline-gray); }
	.r2-fam-stats__cell:first-child, .r2-fam-stats__cell:nth-child(2) { border-top: 0; }
	.r2-fam-stats__cell:nth-child(odd) { border-right: 1px solid var(--st-hairline-gray); }
	.r2-fam-lead__grid { grid-template-columns: 1fr; gap: var(--st-space-7); }
	.r2-fam-lead__side { position: static; }
	.r2-fam-mech__grid { grid-template-columns: 1fr; gap: var(--st-space-7); }
	.r2-fam-raw__grid { grid-template-columns: 1fr; gap: var(--st-space-7); }
	/* No aspect-ratio override on mobile — image keeps its natural shape. */
	.r2-fam-grade-row { grid-template-columns: 1fr; gap: var(--st-space-5); }
	/* No aspect-ratio override on mobile — image keeps its natural shape. */
	.r2-fam-why__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
	/* system archive */
	.r2-sys-lead { grid-template-columns: 1fr; gap: var(--st-space-7); }
	.r2-sys-cat-card:nth-child(-n+2) { grid-column: span 3; min-height: 300px; }
	.r2-sys-cat-card:nth-child(n+3)  { grid-column: span 2; min-height: 220px; }
	.r2-sys-all__grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
	.r2-sys-scope__grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
	.r2-sys-scope__cell { border-left: 0; border-top: 1px solid rgba(255,255,255,.12); }
	.r2-sys-scope__cell:first-child, .r2-sys-scope__cell:nth-child(2) { border-top: 0; }
}

/* sm and below (767px ↓) — mobile portrait + mobile landscape.
   Mondrian apps grid stacks to single column. Why grid drops to 1. */
@media (max-width: 767px) {
	.r2-fam-grade-row__chips { grid-template-columns: repeat(2, minmax(0, 1fr)); }
	.r2-fam-apps__tiles { grid-template-columns: 1fr; grid-template-rows: repeat(4, clamp(200px, 50vw, 260px)); }
	.r2-fam-app-tile:nth-child(1),
	.r2-fam-app-tile:nth-child(2),
	.r2-fam-app-tile:nth-child(3),
	.r2-fam-app-tile:nth-child(4) { grid-column: 1; grid-row: auto; }
	.r2-fam-why__grid { grid-template-columns: 1fr; }
	.r2-fam-selection__head, .r2-fam-selection__row { grid-template-columns: 1fr; }
	.r2-fam-selection__head > div + div, .r2-fam-selection__grade { border-left: 0; border-top: 1px solid var(--st-hairline-gray); }
	.r2-fam-grade-row__foot { flex-wrap: wrap; gap: var(--st-space-3); }
	/* system archive */
	.r2-sys-cat-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
	.r2-sys-cat-card:nth-child(-n+2) { grid-column: span 1; min-height: 220px; }
	.r2-sys-cat-card:nth-child(n+3)  { grid-column: span 1; min-height: 180px; }
	.r2-sys-all__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
	.r2-sys-all__head { align-items: flex-start; }
	.r2-sys-scope__grid { grid-template-columns: 1fr; }
	.r2-sys-scope__cell:nth-child(2) { border-top: 1px solid rgba(255,255,255,.12); }
	.r2-sys-standards__label { border-right: 0; padding-right: 0; margin-right: 0; }
}

/* xs only (479px ↓) — narrowest phones. Chips drop to single column and the
   hover layer pads less to reserve room for text on cramped tiles. */
@media (max-width: 479px) {
	.r2-fam-grade-row__chips { grid-template-columns: 1fr; }
	.r2-fam-app-tile__hover { padding: var(--st-space-5); }
}

/* ════════════════════════════════════════════════════════════════════════════
   REVIEW FIXES — 2026-06-18
   ════════════════════════════════════════════════════════════════════════════ */

/* #4 — Hero slider CTA buttons: fixed width across all 3 slides so layout
   never shifts. 240px covers the longest label ("Technical Consultation").
   flex: 0 0 240px prevents grow/shrink in the flex row. */
.r2-slide__actions .st-btn {
  flex: 0 0 240px;
  justify-content: center;
  text-align: center;
}

/* #7b — Welcome lead: allow multiple <p> children inside the div */
.r2-welcome__lead p {
  margin: 0 0 var(--st-space-4);
  font-size: 1.06rem;
  line-height: 1.7;
  color: var(--st-light-gray);
}
.r2-welcome__lead p:last-child { margin-bottom: 0; }

/* #8 — Industry mosaic: button spacing only. */
.r2-mosaic__link  { display: block; margin-top: var(--st-space-3); }

/* #9c — Project reference slider */
.r2-story-slider { padding-block: var(--st-space-9); background: var(--st-blue-900); color: #fff; }
.r2-story-slider__header { text-align: left; margin-bottom: var(--st-space-7); }
.r2-story-slider__heading { font-size: clamp(1.9rem, 3.2vw, 2.8rem); color: #fff; margin: var(--st-space-3) 0 0; line-height: 1.15; letter-spacing: -0.02em; }
.r2-story-slide { display: none; }
.r2-story-slide.is-active { display: block; }
/* Text column: flex column so all content left-aligns and min-height keeps button consistent across slides */
.r2-featured-story__text-col { display: flex; flex-direction: column; align-items: flex-start; min-height: clamp(340px, 45vh, 480px); }
.r2-featured-story__text { flex: 1; }
/* Button fixed minimum width — same discipline as hero slider CTAs */
.r2-featured-story__text-col .st-btn { min-width: 200px; justify-content: center; }
.r2-story-slider__nav {
  display: flex; align-items: center; justify-content: center; gap: var(--st-space-5);
  margin-top: var(--st-space-7);
}
.r2-story-slider__btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px;
  background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.20);
  border-radius: 50%; color: #fff; cursor: pointer;
  transition: background 200ms ease, border-color 200ms ease;
}
.r2-story-slider__btn:hover { background: rgba(47,102,196,.6); border-color: var(--st-blue); }
.r2-story-slider__count { font-size: .9rem; font-weight: 600; letter-spacing: .08em; color: rgba(255,255,255,.7); min-width: 48px; text-align: center; }

/* #10 — Engagement Spectrum: icon and step badge side by side in one row */
.r2-engage__top {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: var(--st-space-4);
  margin-bottom: var(--st-space-5);
}
.r2-engage__num {
  margin-bottom: 0;
  font-size: .75rem !important;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--st-blue);
  background: rgba(47,102,196,.08);
  padding: 3px 10px;
  border-radius: 2px;
  line-height: 1.5;
  flex-shrink: 0;
}
.r2-engage__icon {
  margin-bottom: 0;
  width: 48px;
  height: 48px;
  color: var(--st-blue);
  flex-shrink: 0;
}
.r2-engage__icon svg {
  width: 48px;
  height: 48px;
}