/* ============================================================
   AFS PORTAL — GLOBAL DESIGN SYSTEM v4
   Ultra-premium. afs-co.uk aesthetic. No grey. No emojis.
   ============================================================ */

:root {
  --black:   #000000;
  --white:   #ffffff;
  --orange:  #e8500a;
  --orange2: #ff6b2b;
  --g50:     #080808;
  --g100:    #0d0d0d;
  --g150:    #111111;
  --g200:    #161616;
  --g300:    #1e1e1e;
  --g400:    #2a2a2a;
  --g500:    #3a3a3a;
  --g600:    #555555;
  --g700:    #888888;
  --g800:    #aaaaaa;
  --g900:    #cccccc;
  --font-display: 'Bebas Neue', sans-serif;
  --font-body:    'Barlow', sans-serif;
  --font-mono:    'IBM Plex Mono', monospace;
  --ease-out:    cubic-bezier(0.23, 1, 0.32, 1);
  --ease-inout:  cubic-bezier(0.77, 0, 0.175, 1);
  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-xl:  32px;
  --nav-h: 64px;
  --section-pad: clamp(80px, 10vw, 160px);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { background: var(--black); color: var(--white); font-family: var(--font-body); font-weight: 400; line-height: 1.6; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
ul, ol { list-style: none; }

/* TYPOGRAPHY */
.display-hero { font-family: var(--font-display); font-size: clamp(72px, 14vw, 200px); line-height: 0.88; letter-spacing: -0.01em; text-transform: uppercase; }
.display-xl   { font-family: var(--font-display); font-size: clamp(56px, 9vw, 140px); line-height: 0.9; text-transform: uppercase; }
.display-lg   { font-family: var(--font-display); font-size: clamp(40px, 6vw, 96px);  line-height: 0.92; text-transform: uppercase; }
.display-md   { font-family: var(--font-display); font-size: clamp(28px, 4vw, 64px);  line-height: 0.95; text-transform: uppercase; }
.eyebrow      { font-family: var(--font-mono); font-size: 11px; font-weight: 500; letter-spacing: 0.18em; text-transform: uppercase; color: var(--orange); }
.body-lg      { font-size: clamp(16px, 1.4vw, 20px); line-height: 1.65; font-weight: 300; }
.body-md      { font-size: 15px; line-height: 1.7; font-weight: 400; }
.body-sm      { font-size: 13px; line-height: 1.6; font-weight: 400; color: var(--g800); }

/* LAYOUT */
.container { width: 100%; max-width: 1280px; margin: 0 auto; padding: 0 clamp(20px, 5vw, 80px); }
.section   { padding: var(--section-pad) clamp(20px, 5vw, 80px); max-width: 1280px; margin: 0 auto; }
/* Global content wrapper — constrains all page body content to readable width */
.content-wrap { max-width: 1280px; margin: 0 auto; padding: clamp(40px, 5vw, 72px) clamp(20px, 5vw, 80px); }

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--nav-h);
  display: grid;
  grid-template-columns: auto auto 1fr;
  align-items: center;
  gap: 0;
  padding: 0 clamp(20px, 5vw, 60px);
  transition: background 0.4s var(--ease-out), backdrop-filter 0.4s;
}
.nav.scrolled {
  background: rgba(0,0,0,0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.nav-logo { font-family: var(--font-display); font-size: 28px; letter-spacing: 0.04em; color: var(--white); }
.nav-logo span { color: var(--orange); }
.nav-links { display: flex; align-items: center; gap: 28px; justify-content: flex-end; }
.nav-link { font-size: 12px; font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase; color: var(--g700); transition: color 0.2s; }
.nav-link:hover, .nav-link.active { color: var(--white); }
.nav-link.cta { color: var(--white); border: 1px solid rgba(255,255,255,0.2); padding: 8px 18px; border-radius: 100px; transition: border-color 0.2s, background 0.2s; }
.nav-link.cta:hover { border-color: var(--white); background: rgba(255,255,255,0.06); }
/* Customer-mode nav hides engineer-only links */
body.mode-customer .engineer-only { display: none !important; }
body.mode-engineer .customer-only { display: none !important; }

/* ============================================================
   MODE BADGE (persistent top bar when mode is set)
   ============================================================ */
.mode-badge {
  position: fixed; top: var(--nav-h); left: 0; right: 0; z-index: 999;
  height: 36px;
  display: flex; align-items: center; justify-content: center; gap: 20px;
  background: var(--g50);
  border-bottom: 1px solid var(--g300);
  font-family: var(--font-mono); font-size: 10px; font-weight: 500;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--g700);
  transform: translateY(-100%);
  transition: transform 0.4s var(--ease-out);
}
.mode-badge.visible { transform: translateY(0); }
.mode-badge-label { color: var(--orange); }
.mode-badge-switch { color: var(--g600); border-bottom: 1px solid var(--g500); cursor: pointer; transition: color 0.2s, border-color 0.2s; }
.mode-badge-switch:hover { color: var(--white); border-color: var(--white); }
body.mode-set .mode-badge { transform: translateY(0); }

/* ============================================================
   PAGE HERO
   ============================================================ */
.page-hero {
  position: relative; height: 100svh; min-height: 600px;
  display: flex; align-items: flex-end;
  padding-bottom: clamp(60px, 8vw, 120px);
  padding-left: clamp(20px, 5vw, 80px);
  padding-right: clamp(20px, 5vw, 80px);
  overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; background-size: cover; background-position: center; transform: scale(1.05); transition: transform 8s ease; }
.page-hero:hover .hero-bg { transform: scale(1.0); }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(to top, rgba(0,0,0,0.88) 0%, rgba(0,0,0,0.4) 50%, rgba(0,0,0,0.15) 100%); }
.hero-content { position: relative; z-index: 1; max-width: 900px; }
.hero-kicker { margin-bottom: 16px; }
.hero-title { color: var(--white); margin-bottom: 24px; text-transform: uppercase; }
.hero-sub { font-size: clamp(16px, 1.4vw, 20px); font-weight: 300; color: rgba(255,255,255,0.7); max-width: 600px; line-height: 1.6; }

/* ── PAGE HERO ALIASES (discipline pages use page-hero-* prefix) ── */
.page-hero { background-size: cover; background-position: center 30%; }
.page-hero-overlay { position: absolute; inset: 0; background: linear-gradient(to top, rgba(0,0,0,0.92) 0%, rgba(0,0,0,0.5) 45%, rgba(0,0,0,0.18) 100%); }
.page-hero-content { position: relative; z-index: 1; max-width: 900px; }
.page-hero-title { font-family: var(--font-display); font-size: clamp(48px, 8vw, 110px); line-height: 0.9; text-transform: uppercase; color: var(--white); margin-bottom: 24px; letter-spacing: 0.02em; }
.page-hero-sub { font-size: clamp(13px, 1.2vw, 16px); font-weight: 300; color: var(--g800); max-width: 680px; line-height: 1.65; }

/* ============================================================
   MARQUEE
   ============================================================ */
.marquee-wrap { overflow: hidden; border-top: 1px solid rgba(255,255,255,0.07); border-bottom: 1px solid rgba(255,255,255,0.07); padding: 18px 0; background: var(--g50); }
.marquee-track { display: flex; gap: 0; animation: marquee 35s linear infinite; width: max-content; }
.marquee-track:hover { animation-play-state: paused; }
.marquee-item { font-family: var(--font-display); font-size: clamp(18px, 2vw, 28px); letter-spacing: 0.04em; text-transform: uppercase; color: var(--g600); padding: 0 40px; white-space: nowrap; transition: color 0.2s; }
.marquee-item:hover { color: var(--white); }
.marquee-sep { color: var(--orange); }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ============================================================
   SEARCH
   ============================================================ */
.search-wrap { padding: clamp(40px, 5vw, 72px) clamp(20px, 5vw, 80px) 0; max-width: 1280px; margin: 0 auto; }
.search-bar { display: flex; align-items: center; gap: 16px; background: var(--g100); border: 1px solid var(--g400); border-radius: var(--radius-xl); padding: 16px 28px; transition: border-color 0.2s; }
.search-bar:focus-within { border-color: var(--orange); }
.search-bar svg { width: 20px; height: 20px; color: var(--g600); flex-shrink: 0; }

/* ── SEARCH BAR ALIASES (discipline pages use search-bar-wrap structure) ── */
.search-bar-wrap { padding: clamp(32px, 4vw, 56px) clamp(20px, 5vw, 80px) 0; max-width: 1280px; margin: 0 auto; }
.search-bar-inner { display: flex; align-items: center; gap: 16px; background: var(--g100); border: 1px solid var(--g400); border-radius: var(--radius-xl); padding: 16px 28px; transition: border-color 0.2s; }
.search-bar-inner:focus-within { border-color: var(--orange); }
.search-input-wrap { display: flex; align-items: center; gap: 12px; flex: 1; min-width: 120px; }
.search-icon { width: 18px; height: 18px; flex-shrink: 0; color: var(--g600); }
.search-input-wrap input { flex: 1; background: none; border: none; outline: none; font-family: var(--font-body); font-size: 16px; color: var(--white); }
.search-input-wrap input::placeholder { color: var(--g600); }
.search-count-bar { padding: 10px clamp(20px, 5vw, 80px) 0; max-width: 1280px; margin: 0 auto; }
.search-count { font-family: var(--font-mono); font-size: 11px; color: var(--g600); letter-spacing: 0.06em; }
.search-bar input { flex: 1; background: none; border: none; outline: none; font-family: var(--font-body); font-size: 16px; color: var(--white); }
.search-bar input::placeholder { color: var(--g600); }
.search-count { font-family: var(--font-mono); font-size: 11px; color: var(--g600); white-space: nowrap; }

/* FILTER PILLS */
.filter-bar { display: flex; flex-wrap: wrap; gap: 10px; padding: 20px clamp(20px, 5vw, 80px); max-width: 1280px; margin: 0 auto; }
/* Desktop: pills in a row — natural width, no shrink */
.filter-pills { display: flex; align-items: center; gap: 8px; flex-wrap: nowrap; flex-shrink: 0; overflow: visible; }
.filter-pill { font-family: var(--font-mono); font-size: 11px; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; padding: 8px 20px; border-radius: 100px; border: 1px solid var(--g400); color: var(--g700); background: transparent; transition: all 0.2s var(--ease-out); white-space: nowrap; flex-shrink: 0; }
.filter-pill:hover { border-color: var(--white); color: var(--white); }
.filter-pill.active { background: var(--orange); border-color: var(--orange); color: var(--white); }

/* ANCHOR NAV */
.anchor-nav { padding: clamp(40px, 5vw, 72px) clamp(20px, 5vw, 80px) 0; max-width: 1280px; margin: 0 auto; }
.anchor-nav-inner { display: flex; flex-wrap: wrap; gap: 12px; }
.anchor-pill { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: 11px; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; padding: 12px 24px; border-radius: var(--radius-md); border: 1px solid var(--g400); color: var(--g700); background: var(--g100); transition: all 0.2s var(--ease-out); }
.anchor-pill:hover { border-color: var(--orange); color: var(--orange); background: rgba(232,80,10,0.06); }
.anchor-pill::before { content: '↓'; font-size: 12px; }

/* ============================================================
   MANUFACTURER SECTIONS — with tab system
   ============================================================ */
.mfr-list { display: flex; flex-direction: column; gap: 3px; padding: clamp(40px, 5vw, 72px) clamp(20px, 5vw, 80px); max-width: 1280px; margin: 0 auto; }
.mfr-section { border: 1px solid var(--g300); border-radius: var(--radius-lg); overflow: hidden; background: var(--g100); transition: border-color 0.3s var(--ease-out); }
.mfr-section:hover { border-color: var(--g500); }
.mfr-section.open { border-color: var(--orange); }
.mfr-section.hidden { display: none; }
.mfr-header { display: flex; align-items: center; justify-content: space-between; padding: 28px 36px; cursor: pointer; transition: background 0.2s; user-select: none; }
.mfr-header:hover { background: rgba(255,255,255,0.02); }
.mfr-header-left { display: flex; align-items: center; gap: 24px; }
.mfr-num { font-family: var(--font-mono); font-size: 11px; color: var(--orange); letter-spacing: 0.1em; min-width: 32px; }
.mfr-name { font-size: clamp(16px, 1.6vw, 22px); font-weight: 600; color: var(--white); line-height: 1.2; }
.mfr-cat { font-family: var(--font-mono); font-size: 10px; color: var(--g600); letter-spacing: 0.08em; text-transform: uppercase; margin-top: 4px; }
.mfr-chevron { width: 24px; height: 24px; color: var(--g600); transition: transform 0.3s var(--ease-out); flex-shrink: 0; }
.mfr-section.open .mfr-chevron { transform: rotate(180deg); color: var(--orange); }
.mfr-body { max-height: 0; overflow: hidden; transition: max-height 0.6s var(--ease-out); }
.mfr-section.open .mfr-body { max-height: 9999px; }

/* Tab navigation within manufacturer sections */
.mfr-tabs { display: flex; gap: 0; border-bottom: 1px solid var(--g300); overflow-x: auto; scrollbar-width: none; padding: 0 36px; background: var(--g150); }
.mfr-tabs::-webkit-scrollbar { display: none; }
.mfr-tab { font-family: var(--font-mono); font-size: 10px; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; padding: 14px 20px; color: var(--g600); border-bottom: 2px solid transparent; white-space: nowrap; transition: color 0.2s, border-color 0.2s; cursor: pointer; background: none; border-top: none; border-left: none; border-right: none; }
.mfr-tab:hover { color: var(--white); }
.mfr-tab.active { color: var(--orange); border-bottom-color: var(--orange); }
.mfr-tab-content { display: none; padding: 32px 36px 36px; }
.mfr-tab-content.active { display: block; }
.mfr-tab-content h4 { font-size: 11px; font-weight: 600; color: var(--white); letter-spacing: 0.08em; text-transform: uppercase; margin: 24px 0 10px; }
.mfr-tab-content h4:first-child { margin-top: 0; }
.mfr-tab-content p { font-size: 14px; line-height: 1.8; color: var(--g800); margin-bottom: 12px; }
.mfr-tab-content ul { margin: 8px 0 16px 20px; list-style: disc; }
.mfr-tab-content ul li { font-size: 13px; color: var(--g800); margin-bottom: 5px; line-height: 1.6; }
.mfr-tab-content ol { margin: 8px 0 16px 20px; list-style: decimal; }
.mfr-tab-content ol li { font-size: 13px; color: var(--g800); margin-bottom: 5px; line-height: 1.6; }
.mfr-tab-content .warn { background: rgba(232,80,10,0.08); border-left: 3px solid var(--orange); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; padding: 12px 16px; margin: 16px 0; font-size: 13px; color: var(--g800); }
.mfr-tab-content .info-box { background: rgba(255,255,255,0.03); border: 1px solid var(--g300); border-radius: var(--radius-md); padding: 16px 20px; margin: 16px 0; font-size: 13px; color: var(--g800); }
.mfr-tab-content .code-block { background: var(--black); border: 1px solid var(--g400); border-radius: var(--radius-sm); padding: 16px 20px; margin: 12px 0; font-family: var(--font-mono); font-size: 12px; color: var(--g900); line-height: 1.8; overflow-x: auto; }

/* Legacy mfr-overview for backward compat */
.mfr-overview { font-size: 14px; line-height: 1.8; color: var(--g800); border-bottom: 1px solid var(--g300); padding: 32px 36px; }
.mfr-overview h4 { font-size: 12px; font-weight: 600; color: var(--white); letter-spacing: 0.08em; text-transform: uppercase; margin: 20px 0 8px; }
.mfr-overview p { margin-bottom: 10px; }
.mfr-overview ul { margin: 8px 0 12px 20px; list-style: disc; }
.mfr-overview ul li { margin-bottom: 4px; font-size: 13px; }
.mfr-docs { display: flex; flex-wrap: wrap; gap: 10px; padding: 24px 36px 36px; }
.doc-link { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: 11px; font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase; padding: 10px 18px; border-radius: var(--radius-md); border: 1px solid var(--g400); color: var(--g700); background: var(--g200); transition: all 0.2s var(--ease-out); }
.doc-link svg { width: 14px; height: 14px; flex-shrink: 0; }
.doc-link:hover { border-color: var(--orange); color: var(--orange); background: rgba(232,80,10,0.06); }

/* ============================================================
   STANDARDS
   ============================================================ */
.std-section { margin-bottom: clamp(60px, 8vw, 120px); scroll-margin-top: calc(var(--nav-h) + 40px); }
.std-section-header { display: flex; align-items: flex-start; gap: 32px; margin-bottom: 40px; padding-bottom: 32px; border-bottom: 1px solid var(--g300); }
.std-section-num { font-family: var(--font-mono); font-size: 11px; color: var(--orange); letter-spacing: 0.1em; min-width: 32px; padding-top: 4px; }
.std-section-title { font-family: var(--font-display); font-size: clamp(32px, 4vw, 56px); text-transform: uppercase; line-height: 0.95; margin-bottom: 12px; }
.std-section-sub { font-size: 15px; color: var(--g800); max-width: 700px; line-height: 1.7; }
.std-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 560px), 1fr)); gap: 20px; }
.std-card { background: var(--g100); border: 1px solid var(--g300); border-radius: var(--radius-lg); overflow: hidden; transition: border-color 0.3s var(--ease-out), transform 0.3s var(--ease-out); }
.std-card:hover { border-color: var(--g500); transform: translateY(-2px); }
.std-card-header { display: flex; align-items: center; justify-content: space-between; padding: 20px 28px 16px; border-bottom: 1px solid var(--g300); }
.std-ref { font-family: var(--font-mono); font-size: 11px; color: var(--orange); letter-spacing: 0.1em; }
.std-badge { font-family: var(--font-mono); font-size: 10px; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; padding: 4px 10px; border-radius: 100px; background: var(--g300); color: var(--g700); }
.std-card-title { font-size: clamp(15px, 1.4vw, 19px); font-weight: 600; padding: 20px 28px 0; line-height: 1.3; }
.std-card-body { padding: 16px 28px 28px; font-size: 14px; line-height: 1.75; color: var(--g800); }
.std-card-body h4 { font-size: 11px; font-weight: 600; color: var(--white); letter-spacing: 0.08em; text-transform: uppercase; margin: 20px 0 8px; }
.std-card-body p { margin-bottom: 10px; }
.std-card-body ul { margin: 8px 0 12px 20px; list-style: disc; }
.std-card-body ul li { margin-bottom: 4px; font-size: 13px; }

/* TABLES */
.std-table { width: 100%; border-collapse: collapse; margin: 12px 0 20px; font-size: 13px; }
.std-table th { background: var(--black); color: var(--white); font-family: var(--font-mono); font-size: 10px; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; padding: 10px 14px; text-align: left; border: 1px solid var(--g400); }
.std-table td { background: var(--black); color: var(--g800); padding: 10px 14px; border: 1px solid var(--g300); vertical-align: top; line-height: 1.5; }
.std-table tr:hover td { background: var(--g100); color: var(--white); }

/* ============================================================
   GLOSSARY
   ============================================================ */
.glossary-alpha { display: flex; flex-wrap: nowrap; gap: 8px; padding: 0 clamp(20px, 5vw, 80px) 24px; max-width: 1280px; margin: 0 auto; overflow-x: auto; scrollbar-width: none; }
.glossary-alpha::-webkit-scrollbar { display: none; }
.alpha-btn { font-family: var(--font-mono); font-size: 12px; font-weight: 500; letter-spacing: 0.06em; width: 36px; height: 36px; border-radius: var(--radius-sm); border: 1px solid var(--g400); color: var(--g700); background: transparent; transition: all 0.2s; }
.alpha-btn:hover { border-color: var(--white); color: var(--white); }
.alpha-btn.active { background: var(--orange); border-color: var(--orange); color: var(--white); }
.glossary-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 420px), 1fr)); gap: 3px; padding: 0 clamp(20px, 5vw, 80px); max-width: 1280px; margin: 0 auto; }
.gloss-item { padding: 24px 28px; background: var(--g100); border: 1px solid var(--g300); border-radius: var(--radius-md); transition: border-color 0.2s, background 0.2s; }
.gloss-item:hover { border-color: var(--g500); background: var(--g150); }
.gloss-item.hidden { display: none; }
.gloss-term { display: block; font-family: var(--font-mono); font-size: 12px; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; color: var(--orange); margin-bottom: 8px; }
.gloss-def { font-size: 14px; color: var(--g800); line-height: 1.65; }

/* ============================================================
   CALCULATORS — uniform card layout, button always at bottom
   ============================================================ */
.calc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 480px), 1fr));
  gap: 24px;
  padding: clamp(40px, 5vw, 72px) clamp(20px, 5vw, 80px);
  max-width: 1280px;
  margin: 0 auto;
  align-items: start;
}
.calc-app {
  background: var(--g100);
  border: 1px solid var(--g300);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: border-color 0.3s var(--ease-out), transform 0.3s var(--ease-out);
  display: flex;
  flex-direction: column;
}
.calc-app:hover { border-color: var(--g500); transform: translateY(-3px); }
.calc-app-header { display: flex; align-items: center; gap: 16px; padding: 24px 28px; background: var(--g200); border-bottom: 1px solid var(--g300); flex-shrink: 0; }
.calc-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--orange); flex-shrink: 0; }
.calc-app-title { font-family: var(--font-display); font-size: 22px; text-transform: uppercase; letter-spacing: 0.04em; }
.calc-app-std { font-family: var(--font-mono); font-size: 10px; color: var(--g600); letter-spacing: 0.1em; text-transform: uppercase; margin-left: auto; }
.calc-body { padding: 28px; display: flex; flex-direction: column; flex: 1; }
.calc-fields { flex: 1; }
.calc-field { margin-bottom: 20px; }
.calc-field label { display: block; font-family: var(--font-mono); font-size: 11px; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; color: var(--g700); margin-bottom: 8px; }
.calc-field input, .calc-field select { width: 100%; background: var(--g200); border: 1px solid var(--g400); border-radius: var(--radius-sm); padding: 12px 16px; font-family: var(--font-body); font-size: 15px; color: var(--white); outline: none; transition: border-color 0.2s; -webkit-appearance: none; }
.calc-field input:focus, .calc-field select:focus { border-color: var(--orange); }
.calc-field select { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23888' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; background-size: 16px; padding-right: 40px; }
.calc-field select option { background: var(--g200); }
.calc-btn { width: 100%; padding: 14px; background: var(--orange); color: var(--white); font-family: var(--font-mono); font-size: 12px; font-weight: 500; letter-spacing: 0.12em; text-transform: uppercase; border-radius: var(--radius-md); transition: background 0.2s, transform 0.15s; margin-top: auto; flex-shrink: 0; }
.calc-btn:hover { background: var(--orange2); }
.calc-btn:active { transform: scale(0.98); }
.calc-result { margin-top: 20px; background: var(--black); border: 1px solid var(--g400); border-radius: var(--radius-md); padding: 20px; display: none; }
.calc-result.show { display: block; }
.calc-result-label { font-family: var(--font-mono); font-size: 10px; color: var(--g600); letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 8px; }
.calc-result-value { font-family: var(--font-display); font-size: 40px; color: var(--orange); line-height: 1; }
.calc-result-unit { font-family: var(--font-mono); font-size: 13px; color: var(--g600); margin-top: 4px; }
.calc-result-detail { font-size: 13px; color: var(--g700); margin-top: 12px; line-height: 1.6; border-top: 1px solid var(--g300); padding-top: 12px; }

/* ============================================================
   HANDBOOK
   ============================================================ */
.handbook-list { display: flex; flex-direction: column; gap: 3px; padding: clamp(40px, 5vw, 72px) clamp(20px, 5vw, 80px); max-width: 1280px; margin: 0 auto; }
.hb-section { border: 1px solid var(--g300); border-radius: var(--radius-lg); overflow: hidden; background: var(--g100); }
.hb-section.open { border-color: var(--orange); }
.hb-header { display: flex; align-items: center; gap: 24px; padding: 28px 36px; cursor: pointer; transition: background 0.2s; user-select: none; }
.hb-header:hover { background: rgba(255,255,255,0.02); }
.hb-num { font-family: var(--font-mono); font-size: 11px; color: var(--orange); letter-spacing: 0.1em; min-width: 32px; }
.hb-title { font-size: clamp(16px, 1.6vw, 22px); font-weight: 600; color: var(--white); }
.hb-sub { font-family: var(--font-mono); font-size: 10px; color: var(--g600); letter-spacing: 0.06em; text-transform: uppercase; margin-top: 4px; }
.hb-chevron { width: 24px; height: 24px; color: var(--g600); transition: transform 0.3s var(--ease-out); margin-left: auto; flex-shrink: 0; }
.hb-section.open .hb-chevron { transform: rotate(180deg); color: var(--orange); }
.hb-body { max-height: 0; overflow: hidden; transition: max-height 0.5s var(--ease-out); padding: 0 36px; }
.hb-section.open .hb-body { max-height: 9999px; padding: 0 36px 36px; }
.hb-content { font-size: 14px; line-height: 1.8; color: var(--g800); }
.hb-content h4 { font-size: 11px; font-weight: 600; color: var(--white); letter-spacing: 0.08em; text-transform: uppercase; margin: 20px 0 8px; }
.hb-content p { margin-bottom: 10px; }
.hb-content ul { margin: 8px 0 12px 20px; list-style: disc; }
.hb-content ul li { margin-bottom: 5px; font-size: 14px; }
.hb-content ol { margin: 8px 0 12px 20px; list-style: decimal; }
.hb-content ol li { margin-bottom: 5px; font-size: 14px; }
.hb-content .warn { background: rgba(232,80,10,0.08); border-left: 3px solid var(--orange); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; padding: 12px 16px; margin: 16px 0; font-size: 13px; color: var(--g800); }

/* ============================================================
   WIRING
   ============================================================ */
.wire-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 560px), 1fr)); gap: 20px; padding: clamp(40px, 5vw, 72px) clamp(20px, 5vw, 80px); max-width: 1280px; margin: 0 auto; }
.wire-card { background: var(--g100); border: 1px solid var(--g300); border-radius: var(--radius-lg); overflow: hidden; transition: border-color 0.3s var(--ease-out); }
.wire-card:hover { border-color: var(--g500); }
.wire-card-header { padding: 20px 28px; border-bottom: 1px solid var(--g300); display: flex; align-items: center; justify-content: space-between; }
.wire-card-title { font-size: 18px; font-weight: 600; color: var(--white); }
.wire-card-body { padding: 20px 28px; }
.wire-card-body p { font-size: 14px; color: var(--g800); line-height: 1.7; margin-bottom: 12px; }
.wire-swatch { display: flex; align-items: center; gap: 12px; padding: 8px 0; border-bottom: 1px solid var(--g300); font-size: 13px; color: var(--g800); }
.wire-swatch:last-child { border-bottom: none; }
.wire-colour { width: 32px; height: 14px; border-radius: 3px; flex-shrink: 0; border: 1px solid rgba(255,255,255,0.1); }

/* ============================================================
   LANDING PAGE — AFS PORTAL v4
   ============================================================ */

/* INTRO SECTION — letter reveal on pure black */
.landing-intro {
  position: relative;
  height: 100svh;
  min-height: 600px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--black);
  overflow: hidden;
}
.landing-intro-letters {
  font-family: var(--font-display);
  font-size: clamp(80px, 18vw, 260px);
  line-height: 0.85;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--white);
  display: flex;
  gap: 0.05em;
  overflow: hidden;
}
.landing-intro-letters .letter {
  display: inline-block;
  opacity: 0;
  transform: translateY(100%);
  animation: letterReveal 0.8s var(--ease-out) forwards;
}
.landing-intro-letters .letter:nth-child(1) { animation-delay: 0.1s; }
.landing-intro-letters .letter:nth-child(2) { animation-delay: 0.2s; }
.landing-intro-letters .letter:nth-child(3) { animation-delay: 0.3s; }
.landing-intro-letters .letter.accent { color: var(--orange); }
@keyframes letterReveal {
  from { opacity: 0; transform: translateY(100%); }
  to   { opacity: 1; transform: translateY(0); }
}
.landing-intro-sub {
  font-family: var(--font-mono);
  font-size: clamp(10px, 1.2vw, 13px);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--g600);
  margin-top: 32px;
  opacity: 0;
  animation: fadeUp 0.8s var(--ease-out) 0.6s forwards;
}
.landing-intro-tagline {
  font-size: clamp(14px, 1.6vw, 18px);
  font-weight: 300;
  color: rgba(255,255,255,0.5);
  margin-top: 16px;
  max-width: 500px;
  text-align: center;
  line-height: 1.6;
  opacity: 0;
  animation: fadeUp 0.8s var(--ease-out) 0.8s forwards;
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
.landing-scroll-cue {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--g600);
  opacity: 0;
  animation: fadeUp 0.8s var(--ease-out) 1.2s forwards;
}
.scroll-arrow {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, transparent, var(--g600));
  animation: scrollArrow 2s ease-in-out infinite;
}
@keyframes scrollArrow {
  0%,100% { transform: scaleY(1); opacity: 1; }
  50% { transform: scaleY(0.5); opacity: 0.4; }
}

/* HERO IMAGE SECTION */
.landing-hero-image {
  position: relative;
  height: 100svh;
  min-height: 600px;
  overflow: hidden;
}
.landing-hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1.06);
  animation: heroZoom 14s ease forwards;
}
@keyframes heroZoom { to { transform: scale(1.0); } }
.landing-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0,0,0,0.3) 0%, rgba(0,0,0,0.6) 70%, rgba(0,0,0,1) 100%);
}
.landing-hero-content {
  position: absolute;
  bottom: clamp(60px, 8vw, 120px);
  left: clamp(20px, 5vw, 80px);
  right: clamp(20px, 5vw, 80px);
  max-width: 900px;
}
.landing-hero-eyebrow { margin-bottom: 16px; }
.landing-hero-title {
  font-family: var(--font-display);
  font-size: clamp(48px, 8vw, 120px);
  line-height: 0.9;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 24px;
}
.landing-hero-body {
  font-size: clamp(15px, 1.4vw, 18px);
  font-weight: 300;
  color: rgba(255,255,255,0.65);
  max-width: 560px;
  line-height: 1.65;
}

/* STICKY SCROLL INVERSION SECTION */
.sticky-scroll-section {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 100vh;
}
.sticky-col-text {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(40px, 6vw, 100px);
  overflow: hidden;
}
.sticky-col-content {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.sticky-col-content-item {
  padding: clamp(60px, 8vw, 120px) clamp(40px, 6vw, 100px);
  border-bottom: 1px solid var(--g300);
}
.sticky-col-content-item:last-child { border-bottom: none; }

/* The inversion headline — uses mix-blend-mode */
.inversion-headline {
  font-family: var(--font-display);
  font-size: clamp(40px, 6vw, 88px);
  line-height: 0.92;
  text-transform: uppercase;
  color: var(--white);
  mix-blend-mode: difference;
  position: relative;
  z-index: 2;
}

/* WHITE SECTION — triggers inversion */
.section-white {
  background: var(--white);
  color: var(--black);
}
.section-white .eyebrow { color: var(--orange); }
.section-white p { color: #333; }
.section-white h2, .section-white h3 { color: var(--black); }

/* MODE PANELS — full-width stacked, afs-co.uk fire/fix style */
.mode-panel {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}
.mode-panel-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: transform 8s ease;
}
.mode-panel:hover .mode-panel-bg { transform: scale(1.03); }
.mode-panel-overlay-dark {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.92) 0%, rgba(0,0,0,0.5) 50%, rgba(0,0,0,0.2) 100%);
}
.mode-panel-overlay-white {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(255,255,255,0.95) 0%, rgba(255,255,255,0.6) 50%, rgba(255,255,255,0.1) 100%);
}
.mode-panel-content {
  position: relative;
  z-index: 1;
  padding: clamp(60px, 8vw, 120px) clamp(20px, 5vw, 80px);
  max-width: 800px;
  width: 100%;
}
.mode-panel-eyebrow { margin-bottom: 20px; }
.mode-panel-title {
  font-family: var(--font-display);
  font-size: clamp(56px, 10vw, 160px);
  line-height: 0.88;
  text-transform: uppercase;
  margin-bottom: 28px;
}
.mode-panel.dark .mode-panel-title { color: var(--white); }
.mode-panel.light .mode-panel-title { color: var(--black); }
.mode-panel-desc {
  font-size: clamp(15px, 1.4vw, 18px);
  font-weight: 300;
  max-width: 520px;
  line-height: 1.65;
  margin-bottom: 40px;
}
.mode-panel.dark .mode-panel-desc { color: rgba(255,255,255,0.65); }
.mode-panel.light .mode-panel-desc { color: rgba(0,0,0,0.6); }
.mode-panel-access {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 40px;
}
.mode-access-chip {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 7px 16px;
  border-radius: 100px;
  transition: all 0.2s;
}
.mode-panel.dark .mode-access-chip { border: 1px solid rgba(255,255,255,0.2); color: rgba(255,255,255,0.6); }
.mode-panel.dark .mode-access-chip:hover { border-color: var(--white); color: var(--white); }
.mode-panel.light .mode-access-chip { border: 1px solid rgba(0,0,0,0.2); color: rgba(0,0,0,0.6); }
.mode-panel.light .mode-access-chip:hover { border-color: var(--black); color: var(--black); }
.mode-panel-cta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 16px 32px;
  border-radius: 100px;
  cursor: pointer;
  transition: all 0.25s var(--ease-out);
  border: none;
}
.mode-panel.dark .mode-panel-cta { background: var(--white); color: var(--black); }
.mode-panel.dark .mode-panel-cta:hover { background: var(--orange); color: var(--white); transform: translateY(-2px); }
.mode-panel.light .mode-panel-cta { background: var(--black); color: var(--white); }
.mode-panel.light .mode-panel-cta:hover { background: var(--orange); color: var(--white); transform: translateY(-2px); }
.mode-panel-cta svg { width: 16px; height: 16px; transition: transform 0.2s; }
.mode-panel-cta:hover svg { transform: translateX(4px); }

/* FEATURE STRIP */
.feature-strip { background: var(--g50); border-top: 1px solid var(--g300); border-bottom: 1px solid var(--g300); padding: clamp(60px, 8vw, 120px) clamp(20px, 5vw, 80px); }
.feature-strip-inner { max-width: 1280px; margin: 0 auto; }
.feature-label { font-family: var(--font-mono); font-size: 11px; color: var(--orange); letter-spacing: 0.15em; text-transform: uppercase; margin-bottom: 60px; }
.feature-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 48px; }
.feature-col-num { font-family: var(--font-mono); font-size: 11px; color: var(--g600); letter-spacing: 0.1em; margin-bottom: 16px; }
.feature-col-title { font-family: var(--font-display); font-size: clamp(24px, 3vw, 40px); text-transform: uppercase; line-height: 0.95; margin-bottom: 16px; }
.feature-col-body { font-size: 14px; color: var(--g700); line-height: 1.7; }

/* DISCIPLINE GRID on landing */
.discipline-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr)); gap: 3px; padding: 0 clamp(20px, 5vw, 80px); max-width: 1280px; margin: 0 auto; }
.discipline-card {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: transform 0.4s var(--ease-out);
}
.discipline-card:hover { transform: scale(0.98); }
.discipline-card-bg { position: absolute; inset: 0; background-size: cover; background-position: center 30%; background-repeat: no-repeat; transition: transform 0.6s var(--ease-out); }
.discipline-card:hover .discipline-card-bg { transform: scale(1.04); }
.discipline-card-overlay { position: absolute; inset: 0; background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.2) 100%); }
.discipline-card-content { position: absolute; bottom: 0; left: 0; right: 0; padding: 28px; }
.discipline-card-eyebrow { font-family: var(--font-mono); font-size: 9px; color: var(--orange); letter-spacing: 0.15em; text-transform: uppercase; margin-bottom: 8px; }
.discipline-card-title { font-family: var(--font-display); font-size: clamp(22px, 3vw, 36px); text-transform: uppercase; color: var(--white); line-height: 0.95; }
.discipline-card-arrow { position: absolute; top: 24px; right: 24px; width: 36px; height: 36px; border-radius: 50%; border: 1px solid rgba(255,255,255,0.2); display: flex; align-items: center; justify-content: center; color: var(--white); transition: all 0.2s; }
.discipline-card:hover .discipline-card-arrow { background: var(--orange); border-color: var(--orange); }

/* TICKER / FACT STRIP */
.fact-strip { overflow: hidden; border-top: 1px solid var(--g300); border-bottom: 1px solid var(--g300); padding: 14px 0; background: var(--g50); }
.fact-track { display: flex; gap: 0; animation: marquee 50s linear infinite; width: max-content; }
.fact-item { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--g600); padding: 0 40px; white-space: nowrap; }
.fact-item .fact-val { color: var(--orange); }
.fact-sep { color: var(--g400); }

/* FOOTER */
.footer { background: var(--black); border-top: 1px solid var(--g300); padding: 48px clamp(20px, 5vw, 80px); }
.footer-inner { max-width: 1280px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 24px; }
.footer-logo { font-family: var(--font-display); font-size: 24px; letter-spacing: 0.04em; color: var(--white); }
.footer-logo span { color: var(--orange); }
.footer-tagline { font-family: var(--font-mono); font-size: 10px; color: var(--g600); letter-spacing: 0.1em; text-transform: uppercase; margin-top: 4px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 24px; font-size: 13px; color: var(--g600); }
.footer-links a { transition: color 0.2s; }
.footer-links a:hover { color: var(--white); }
.footer-legal { font-size: 12px; color: var(--g500); width: 100%; padding-top: 24px; border-top: 1px solid var(--g300); }

/* SCROLL REVEAL */
.reveal { opacity: 0; transform: translateY(32px); transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out); }
.reveal.visible { opacity: 1; transform: translateY(0); }
.d1 { transition-delay: 0.08s !important; }
.d2 { transition-delay: 0.16s !important; }
.d3 { transition-delay: 0.24s !important; }
.d4 { transition-delay: 0.32s !important; }

/* UTILITY */
.orange { color: var(--orange); }
.mono-tag { font-family: var(--font-mono); font-size: 10px; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; padding: 4px 10px; border-radius: 100px; background: rgba(232,80,10,0.12); color: var(--orange); border: 1px solid rgba(232,80,10,0.2); }
.divider { height: 1px; background: var(--g300); margin: 0; }
.no-results { text-align: center; padding: 80px 20px; font-family: var(--font-mono); font-size: 13px; color: var(--g600); letter-spacing: 0.08em; display: none; }
.no-results.show { display: block; }
.section-gap { height: clamp(60px, 8vw, 120px); }

/* RESPONSIVE */
@media (max-width: 900px) {
  .sticky-scroll-section { grid-template-columns: 1fr; }
  .sticky-col-text { position: relative; height: auto; min-height: 60vh; }
  .feature-cols { grid-template-columns: 1fr; gap: 32px; }
  .nav-links .nav-link:not(.cta) { display: none; }
  .mfr-header { padding: 20px; }
  .mfr-body { padding: 0; }
  .mfr-tabs { padding: 0 20px; }
  .mfr-tab-content { padding: 24px 20px; }
  .mfr-overview { padding: 24px 20px; }
  .mfr-docs { padding: 16px 20px 24px; }
  .hb-header { padding: 20px; }
  .hb-body { padding: 0 20px; }
  .hb-section.open .hb-body { padding: 0 20px 24px; }
}
@media (max-width: 600px) {
  .calc-grid { grid-template-columns: 1fr; }
  .std-cards { grid-template-columns: 1fr; }
  .wire-grid { grid-template-columns: 1fr; }
  .glossary-grid { grid-template-columns: 1fr; }
  .discipline-grid { grid-template-columns: 1fr 1fr; }
  .landing-intro-letters { font-size: clamp(60px, 22vw, 120px); }
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .marquee-track, .fact-track { animation: none; }
  .landing-intro-letters .letter { animation: none; opacity: 1; transform: none; }
  .landing-intro-sub, .landing-intro-tagline, .landing-scroll-cue { animation: none; opacity: 1; transform: none; }
}

/* ============================================================
   ENGINEER CODE OVERLAY — keypad entry
   ============================================================ */
.code-overlay {
  position: fixed; inset: 0; z-index: 9000;
  background: rgba(0,0,0,0.97);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none;
  transition: opacity 0.35s var(--ease-out);
}
.code-overlay.active { opacity: 1; pointer-events: all; }
.code-panel {
  text-align: center;
  max-width: 380px; width: 90%;
  padding: 56px 40px;
  border: 1px solid var(--g300);
  background: var(--g50);
  border-radius: var(--radius-xl);
}
.code-panel .eyebrow { margin-bottom: 20px; display: block; }
.code-panel-title {
  font-family: var(--font-display);
  font-size: clamp(32px, 6vw, 52px);
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 10px;
  line-height: 0.95;
}
.code-panel-sub {
  font-size: 13px; font-weight: 300;
  color: var(--g700); margin-bottom: 36px; line-height: 1.7;
}
.code-dots {
  display: flex; gap: 14px; justify-content: center; margin-bottom: 28px;
}
.code-dot {
  width: 13px; height: 13px; border-radius: 50%;
  border: 1px solid var(--g500); background: transparent;
  transition: background 0.15s, border-color 0.15s, box-shadow 0.15s;
}
.code-dot.filled {
  background: var(--orange); border-color: var(--orange);
  box-shadow: 0 0 10px rgba(232,80,10,0.5);
}
.code-keypad {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 8px; max-width: 220px; margin: 0 auto 20px;
}
.code-key {
  background: var(--g200); border: 1px solid var(--g400);
  color: var(--white); font-family: var(--font-mono);
  font-size: 18px; font-weight: 500;
  padding: 16px; border-radius: var(--radius-md);
  transition: background 0.15s, transform 0.1s;
  user-select: none;
}
.code-key:hover { background: var(--g300); }
.code-key:active { transform: scale(0.93); background: rgba(232,80,10,0.2); }
.code-key.clr { font-size: 11px; letter-spacing: 0.1em; color: var(--g600); }
.code-error {
  font-family: var(--font-mono); font-size: 11px;
  color: #ff4444; letter-spacing: 0.1em; height: 18px; margin-bottom: 14px;
}
.code-cancel {
  font-family: var(--font-mono); font-size: 11px; font-weight: 500;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--g600); background: none; border: none;
  cursor: pointer; transition: color 0.2s;
}
.code-cancel:hover { color: var(--white); }

/* ============================================================
   CINEMATIC HERO — AFS letter drop (matches afs-co.uk exactly)
   ============================================================ */
.landing-hero {
  position: relative; height: 100svh; min-height: 600px;
  background: var(--black); overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}
.landing-hero-bg {
  position: absolute; inset: 0;
  will-change: transform, opacity;
  transition: none;
}
.landing-hero-bg img {
  width: 100%; height: 100%;
  object-fit: cover; object-position: center 60%;
}
.landing-hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, rgba(0,0,0,0.72) 0%, rgba(0,0,0,0.45) 50%, rgba(0,0,0,0.82) 100%);
}
.landing-hero-vignette {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at center, transparent 30%, rgba(0,0,0,0.65) 100%);
}
.landing-hero-content {
  position: relative; z-index: 2;
  text-align: center;
  will-change: transform, opacity;
  padding: 0 24px;
}
.landing-letters-row {
  display: flex; align-items: baseline;
  justify-content: center; gap: 8px;
  margin-bottom: 24px;
}
.landing-letter {
  font-family: var(--font-display);
  font-size: clamp(100px, 18vw, 220px);
  letter-spacing: 0.06em; line-height: 0.9;
  opacity: 0; transform: translateY(20px);
  transition: opacity 0.8s cubic-bezier(0.22,1,0.36,1), transform 0.8s cubic-bezier(0.22,1,0.36,1);
}
.landing-letter.A { color: var(--white); }
.landing-letter.F { color: var(--g700); }
.landing-letter.S { color: var(--orange); }
.landing-letter.vis { opacity: 1; transform: none; }
.landing-hero-rule {
  width: clamp(200px, 40vw, 480px); height: 1px;
  background: rgba(255,255,255,0.15);
  margin: 0 auto 20px;
  opacity: 0; transition: opacity 0.8s ease 0.2s;
}
.landing-hero-rule.vis { opacity: 1; }
.landing-hero-subtitle {
  font-family: var(--font-mono);
  font-size: clamp(12px, 2vw, 18px);
  font-weight: 500; letter-spacing: 0.28em; text-transform: uppercase;
  color: var(--white); margin-bottom: 10px;
  opacity: 0; transform: translateY(10px);
  transition: opacity 0.8s cubic-bezier(0.22,1,0.36,1) 0.15s, transform 0.8s cubic-bezier(0.22,1,0.36,1) 0.15s;
}
.landing-hero-subtitle.vis { opacity: 1; transform: none; }
.landing-hero-tagline {
  font-family: var(--font-body);
  font-size: clamp(12px, 1.4vw, 15px);
  font-weight: 300; letter-spacing: 0.14em;
  color: rgba(255,255,255,0.4); margin-bottom: 40px;
  opacity: 0; transition: opacity 0.8s ease 0.3s;
}
.landing-hero-tagline.vis { opacity: 1; }
.landing-scroll-cue {
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  opacity: 0; transition: opacity 0.8s ease 0.5s;
}
.landing-scroll-cue.vis { opacity: 0.5; }
.landing-scroll-label {
  font-family: var(--font-mono); font-size: 10px; font-weight: 500;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: rgba(255,255,255,0.5);
}
.landing-scroll-bar {
  width: 3px; height: 52px;
  background: linear-gradient(to bottom, var(--orange), rgba(232,80,10,0.1));
  border-radius: 2px;
  animation: scrollPulse 2s ease-in-out infinite;
  box-shadow: 0 0 8px rgba(232,80,10,0.5);
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.55; transform: scaleY(1); }
  50% { opacity: 1; transform: scaleY(1.15); }
}

/* ============================================================
   DARK INTRO SECTION (below hero, above rollover)
   ============================================================ */
.landing-intro {
  background: var(--black);
  padding: clamp(80px, 12vh, 140px) clamp(20px, 5vw, 80px);
}
.landing-intro-inner {
  max-width: 1280px; margin: 0 auto;
  display: grid; grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 6vw, 100px); align-items: start;
}
@media (max-width: 768px) { .landing-intro-inner { grid-template-columns: 1fr; } }
.landing-intro-left .display-xl { color: var(--white); margin-bottom: 32px; }
.landing-intro-right p {
  font-size: clamp(15px, 1.4vw, 18px); font-weight: 300;
  color: var(--g800); line-height: 1.75; margin-bottom: 20px;
}

/* ============================================================
   IMAGE ROLLOVER — dual-layer clip scroll (afs-co.uk exact)
   ============================================================ */
.rollover-outer {
  position: relative;
  height: 280vh;
}
.rollover-sticky {
  position: sticky; top: 0;
  height: 100svh; overflow: hidden;
}
.rollover-dark-layer {
  position: absolute; inset: 0;
  background: var(--black);
  display: flex; align-items: center; justify-content: center;
}
.rollover-dark-layer img {
  position: absolute; inset: -15% 0;
  width: 100%; height: 130%;
  object-fit: cover;
  will-change: transform;
}
.rollover-dark-overlay {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.55);
}
.rollover-light-layer {
  position: absolute; inset: 0;
  background: #f5f5f7;
  clip-path: inset(100% 0 0 0);
  will-change: clip-path;
  display: flex; align-items: center; justify-content: center;
}
.rollover-text {
  position: relative; z-index: 2;
  text-align: center; padding: 0 clamp(20px, 5vw, 80px);
  pointer-events: none;
}
.rollover-phrase {
  font-family: var(--font-display);
  font-size: clamp(48px, 8vw, 130px);
  line-height: 0.9; text-transform: uppercase;
  mix-blend-mode: difference;
  color: var(--white);
  max-width: 900px; margin: 0 auto 24px;
}
.rollover-sub {
  font-family: var(--font-body);
  font-size: clamp(14px, 1.5vw, 18px); font-weight: 300;
  color: rgba(255,255,255,0.6); max-width: 480px;
  margin: 0 auto; line-height: 1.7;
  mix-blend-mode: difference;
}

/* ============================================================
   LIGHT SECTION — white break (afs-co.uk LightSection)
   ============================================================ */
.light-section {
  background: #f5f5f7; color: #1d1d1f;
  padding: clamp(80px, 12vh, 140px) clamp(20px, 5vw, 80px);
}
.light-section-inner { max-width: 1280px; margin: 0 auto; }
.light-section .display-xl { color: #1d1d1f; margin-bottom: 32px; }
.light-section p {
  font-size: clamp(15px, 1.4vw, 18px); font-weight: 300;
  color: #6e6e73; line-height: 1.75; max-width: 640px; margin-bottom: 20px;
}
.light-section .eyebrow { color: var(--orange); margin-bottom: 20px; display: block; }
.light-rule {
  height: 1px; background: #d2d2d7;
  position: relative; overflow: hidden; margin-bottom: 48px;
}
.light-rule-inner {
  position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent 0%, var(--orange) 50%, transparent 100%);
  transform: translateX(-100%);
  transition: transform 1.1s cubic-bezier(0.4,0,0.2,1);
}
.light-rule-inner.vis { transform: translateX(0); }

/* ============================================================
   NAV MODE BADGE (inline in nav, not top bar)
   ============================================================ */
.nav-mode-pill {
  font-family: var(--font-mono); font-size: 9px; font-weight: 500;
  letter-spacing: 0.12em; text-transform: uppercase;
  padding: 5px 12px; border-radius: 100px;
  border: 1px solid; white-space: nowrap; cursor: pointer;
  transition: all 0.2s;
}
.nav-mode-pill.engineer { color: var(--orange); border-color: rgba(232,80,10,0.4); background: rgba(232,80,10,0.08); }
.nav-mode-pill.engineer:hover { background: rgba(232,80,10,0.18); }
.nav-mode-pill.customer { color: #4fc3f7; border-color: rgba(79,195,247,0.4); background: rgba(79,195,247,0.08); }
.nav-mode-pill.customer:hover { background: rgba(79,195,247,0.18); }

/* ── ENGINEER LOCK PANEL ─────────────────────────────── */
.eng-lock-panel {
  max-width: 560px;
  margin: 0 auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}
.eng-lock-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  border: 1px solid rgba(212,98,10,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(212,98,10,0.06);
  margin-bottom: 8px;
}
.eng-lock-title {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 56px);
  text-transform: uppercase;
  color: var(--white);
  line-height: 0.95;
  letter-spacing: 0.02em;
  margin: 0;
}
.eng-lock-body {
  font-size: 15px;
  color: var(--g600);
  line-height: 1.7;
  max-width: 440px;
  margin: 0;
}
.eng-lock-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  background: var(--orange);
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: none;
  border-radius: 100px;
  cursor: pointer;
  transition: all 0.25s var(--ease-out);
  margin-top: 8px;
}
.eng-lock-btn:hover {
  background: #c0560a;
  transform: translateY(-2px);
}
.eng-lock-btn svg { transition: transform 0.2s; }
.eng-lock-btn:hover svg { transform: translateX(4px); }

/* ── SEARCH ICON SIZE FIX ────────────────────────────── */
.search-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--g500);
}
.search-bar-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--g100);
  border: 1px solid var(--g300);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  transition: border-color 0.2s;
}
.search-bar-wrap:focus-within {
  border-color: var(--orange);
}
.search-bar-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
}
.search-input-wrap {
  flex: 1;
  display: flex;
  align-items: center;
}
.search-input-wrap input {
  background: none;
  border: none;
  outline: none;
  font-size: 15px;
  color: var(--white);
  width: 100%;
  font-family: var(--font-sans);
}
.search-input-wrap input::placeholder { color: var(--g600); }

/* ── PAGE HERO ALIASES (discipline pages) ────────────── */
.page-hero { position: relative; height: 75vh; min-height: 520px; overflow: hidden; }
.page-hero-overlay { position: absolute; inset: 0; background: linear-gradient(to bottom, rgba(0,0,0,0.4) 0%, rgba(0,0,0,0.75) 100%); }
.page-hero-content { position: absolute; bottom: clamp(40px,6vw,80px); left: clamp(20px,5vw,80px); right: clamp(20px,5vw,80px); max-width: 900px; }
.page-hero-title { font-family: var(--font-display); font-size: clamp(40px,7vw,96px); text-transform: uppercase; color: var(--white); line-height: 0.9; margin: 0 0 12px; }
.page-hero-sub { font-family: var(--font-body); font-size: clamp(13px, 1.2vw, 16px); font-weight: 300; color: var(--g800); max-width: 680px; line-height: 1.65; letter-spacing: 0; text-transform: none; margin: 0; }

/* ============================================================
   NAV CENTRE MODE STATUS INDICATOR
   ============================================================ */
.nav-mode-status {
  display: flex;
  align-items: center;
  gap: 8px;
  pointer-events: none;
  margin-left: 24px;
  padding-left: 24px;
  border-left: 1px solid rgba(255,255,255,0.1);
}
.nav-mode-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--g600);
  transition: background 0.3s;
  flex-shrink: 0;
}
.nav-mode-status-label {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--g600);
  transition: color 0.3s;
  white-space: nowrap;
}
/* Engineer mode — orange dot + orange label */
body.mode-engineer .nav-mode-status-dot {
  background: var(--orange);
  box-shadow: 0 0 8px rgba(212,98,10,0.7);
}
body.mode-engineer .nav-mode-status-label {
  color: var(--orange);
}

/* ============================================================
   PREMIUM ENGINEER LOCK PANEL
   ============================================================ */
.eng-lock-section {
  background: #0a0a0a;
  border-top: 1px solid rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  padding: clamp(80px,10vh,120px) clamp(24px,5vw,64px);
}
.eng-lock-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(48px,6vw,96px);
  align-items: center;
}
@media (max-width: 768px) {
  .eng-lock-inner { grid-template-columns: 1fr; }
  .eng-lock-left { display: none; }
}

/* Decorative keypad visual */
.eng-lock-keypad-visual {
  background: #111;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 12px;
  padding: 32px;
  max-width: 260px;
  margin: 0 auto;
}
.eng-kv-row {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 10px;
  margin-bottom: 10px;
}
.eng-kv-key {
  background: #1a1a1a;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 6px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 500;
  color: var(--g700);
  transition: background 0.2s, color 0.2s;
  cursor: default;
}
.eng-kv-key--dim { font-size: 11px; color: var(--g500); }
.eng-kv-key--orange { color: var(--orange); border-color: rgba(212,98,10,0.3); }
.eng-kv-dots {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.eng-kv-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.2);
  background: transparent;
}

/* Right side content */
.eng-lock-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 20px;
}
.eng-lock-title {
  font-family: var(--font-display);
  font-size: clamp(44px,5.5vw,80px);
  font-weight: 400;
  letter-spacing: 0.02em;
  line-height: 0.9;
  color: var(--white);
  margin-bottom: 28px;
  text-transform: uppercase;
}
.eng-lock-body {
  font-family: var(--font-body);
  font-size: clamp(15px,1.6vw,18px);
  font-weight: 300;
  color: rgba(245,245,247,0.55);
  line-height: 1.75;
  margin-bottom: 32px;
  max-width: 480px;
}
.eng-lock-features {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 36px;
}
.eng-lock-feature {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 400;
  color: rgba(245,245,247,0.6);
  letter-spacing: 0.02em;
}
.eng-lock-feature-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--orange);
  flex-shrink: 0;
}
.eng-lock-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--orange);
  color: var(--white);
  border: none;
  border-radius: 100px;
  padding: 14px 28px;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
}
.eng-lock-btn:hover { background: #c05608; }
.eng-lock-btn:active { transform: scale(0.97); }

/* ============================================================
   INLINE ENGINEER KEYPAD SECTION
   ============================================================ */
.eng-inline-section {
  background: #fff;
  padding: clamp(80px,10vh,120px) clamp(24px,5vw,64px);
  border-top: 1px solid #e8e8e8;
  min-height: 500px;
}
.eng-inline-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(48px,6vw,96px);
  align-items: center;
}
@media (max-width: 768px) {
  .eng-inline-inner { grid-template-columns: 1fr; }
}

/* Copy side */
.eng-inline-eyebrow {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 20px;
}
.eng-inline-title {
  font-family: var(--font-display);
  font-size: clamp(40px,5vw,72px);
  line-height: 0.95;
  color: #0a0a0a;
  text-transform: uppercase;
  margin-bottom: 24px;
}
.eng-inline-title em {
  font-style: normal;
  color: #0a0a0a;
}
.eng-inline-body {
  font-size: clamp(15px,1.2vw,17px);
  font-weight: 300;
  color: #555;
  line-height: 1.75;
  margin-bottom: 32px;
  max-width: 480px;
}
.eng-inline-features {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.eng-inline-features li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #333;
}
.eng-inline-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--orange);
  flex-shrink: 0;
}

/* Keypad side */
.eng-inline-keypad {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}
.eng-inline-kp-label {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #999;
  margin-bottom: 20px;
}
.eng-inline-kp-dots {
  display: flex;
  gap: 14px;
  margin-bottom: 24px;
}
.eng-kp-dot {
  width: 13px;
  height: 13px;
  border-radius: 50%;
  border: 1px solid #ccc;
  background: transparent;
  transition: background 0.15s, border-color 0.15s, box-shadow 0.15s;
}
.eng-kp-dot.filled {
  background: var(--orange);
  border-color: var(--orange);
  box-shadow: 0 0 10px rgba(212,98,10,0.4);
}
.eng-kp-dot.success {
  background: #22c55e;
  border-color: #22c55e;
  box-shadow: 0 0 10px rgba(34,197,94,0.4);
}
.eng-inline-kp-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  max-width: 280px;
  width: 100%;
  margin-bottom: 16px;
}
.eng-kp-key {
  background: #0a0a0a;
  border: 1px solid #222;
  color: #f5f5f7;
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 500;
  padding: 18px;
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s, border-color 0.15s;
  user-select: none;
  text-align: center;
}
.eng-kp-key:hover { background: #1a1a1a; border-color: #444; }
.eng-kp-key:active { transform: scale(0.93); background: rgba(212,98,10,0.2); }
.eng-kp-key--dim { font-size: 11px; letter-spacing: 0.1em; color: #666; }
.eng-kp-key--enter { color: var(--orange); border-color: rgba(212,98,10,0.3); }
.eng-kp-key--enter:hover { background: rgba(212,98,10,0.1); border-color: var(--orange); }
.eng-inline-kp-status {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: #999;
  text-align: center;
  min-height: 18px;
  transition: color 0.2s;
}
.eng-inline-kp-status.error { color: #ef4444; }
.eng-inline-kp-status.success { color: #22c55e; }

/* ============================================================
   MOBILE NAV — HAMBURGER + DRAWER (staggered links)
   ============================================================ */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 6px;
  cursor: pointer;
  padding: 0;
  transition: border-color 0.2s;
  flex-shrink: 0;
  margin-left: auto;
}
.nav-hamburger:hover { border-color: rgba(255,255,255,0.35); }
.nav-hamburger span {
  display: block;
  width: 16px;
  height: 1.5px;
  background: var(--white);
  border-radius: 2px;
  transition: transform 0.25s var(--ease-out), opacity 0.2s;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Mobile drawer */
.nav-drawer {
  display: none;
  position: fixed;
  top: var(--nav-h);
  left: 0;
  right: 0;
  background: rgba(6,6,6,0.98);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid rgba(255,255,255,0.07);
  z-index: 998;
  padding: 20px 28px 32px;
  flex-direction: column;
  gap: 0;
  pointer-events: none;
  overflow: hidden;
}
.nav-drawer.open {
  pointer-events: all;
}

/* Each link animates in with stagger */
.nav-drawer-link {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--g700);
  padding: 14px 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  display: block;
  text-decoration: none;
  opacity: 0;
  transform: translateY(12px);
  transition: color 0.15s;
}
.nav-drawer-link:hover, .nav-drawer-link.active { color: var(--white); }
.nav-drawer.open .nav-drawer-link {
  animation: drawerLinkIn 0.35s var(--ease-out) forwards;
}
/* Stagger delays — up to 12 links */
.nav-drawer.open .nav-drawer-link:nth-child(1)  { animation-delay: 0.04s; }
.nav-drawer.open .nav-drawer-link:nth-child(2)  { animation-delay: 0.08s; }
.nav-drawer.open .nav-drawer-link:nth-child(3)  { animation-delay: 0.12s; }
.nav-drawer.open .nav-drawer-link:nth-child(4)  { animation-delay: 0.16s; }
.nav-drawer.open .nav-drawer-link:nth-child(5)  { animation-delay: 0.20s; }
.nav-drawer.open .nav-drawer-link:nth-child(6)  { animation-delay: 0.24s; }
.nav-drawer.open .nav-drawer-link:nth-child(7)  { animation-delay: 0.28s; }
.nav-drawer.open .nav-drawer-link:nth-child(8)  { animation-delay: 0.32s; }
.nav-drawer.open .nav-drawer-link:nth-child(9)  { animation-delay: 0.36s; }
.nav-drawer.open .nav-drawer-link:nth-child(10) { animation-delay: 0.40s; }
.nav-drawer.open .nav-drawer-link:nth-child(11) { animation-delay: 0.44s; }
.nav-drawer.open .nav-drawer-link:nth-child(12) { animation-delay: 0.48s; }

.nav-drawer-mode-btn {
  margin-top: 20px;
  width: 100%;
  background: rgba(232,80,10,0.08);
  border: 1px solid rgba(232,80,10,0.25);
  color: var(--orange);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 14px;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.2s;
  opacity: 0;
}
.nav-drawer.open .nav-drawer-mode-btn {
  animation: drawerLinkIn 0.35s var(--ease-out) 0.52s forwards;
}
.nav-drawer-mode-btn:hover { background: rgba(232,80,10,0.18); }

@keyframes drawerLinkIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

@media (max-width: 900px) {
  .nav { grid-template-columns: auto 1fr auto; gap: 0; }
  .nav-mode-status { display: none; }
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .nav-drawer { display: none; }
  .nav-drawer.open { display: flex; }
}

/* ── FIX: Card badge overflow on mobile ── */
@media (max-width: 640px) {
  .afs-card-header { flex-wrap: wrap; gap: 8px; padding: 14px 16px; align-items: flex-start; }
  .afs-card-header-left { flex: 1 1 100%; min-width: 0; }
  .afs-card-header-right {
    max-width: 100%;
    flex-wrap: wrap;
    overflow: visible;
    gap: 5px;
    justify-content: flex-start;
    order: 2;
  }
  .afs-card-chevron { order: 3; margin-left: auto; align-self: flex-start; margin-top: 2px; }
  .afs-card-badge { font-size: 8px; padding: 3px 8px; }
  .afs-card-title { font-size: clamp(13px, 4vw, 18px); }
  .afs-card-body-inner { padding: 16px; }
  .afs-tab-panel { padding: 16px; }
}

/* ============================================================
   SORT SELECT — added alongside filter pills
   ============================================================ */
.sort-wrap { display: flex; align-items: center; flex-shrink: 0; }
.sort-select {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 8px 32px 8px 14px;
  border-radius: 100px;
  border: 1px solid var(--g400);
  color: var(--g700);
  background: transparent;
  cursor: pointer;
  outline: none;
  transition: border-color 0.2s var(--ease-out), color 0.2s var(--ease-out);
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23888' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
}
.sort-select:hover { border-color: var(--white); color: var(--white); }
.sort-select option { background: var(--g100); color: var(--white); }

/* ============================================================
   FILTER PILLS — mobile horizontal scroll fix
   ============================================================ */
@media (max-width: 768px) {
  .search-bar-inner { flex-wrap: wrap; gap: 12px; padding: 14px 18px; }
  .filter-pills {
    display: flex;
    flex-wrap: nowrap;
    overflow: visible; /* allow pills to be seen — parent search-bar-inner wraps them to own row */
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    gap: 8px;
    width: 100%;
    flex: none; /* override desktop flex:1 */
    padding-bottom: 4px;
  }
  .filter-pills::-webkit-scrollbar { display: none; }
  .filter-pill { flex-shrink: 0; white-space: nowrap; }
  .sort-wrap { width: 100%; flex: none; }
  .sort-select { width: 100%; border-radius: var(--radius-md); }
}

/* ── PORTAL SEARCH (customer pages) ───────────────────────────────────────── */
.portal-search-container { padding: clamp(32px,4vw,56px) clamp(20px,5vw,80px) 0; max-width: 1280px; margin: 0 auto; }
.portal-search-wrap { display: flex; flex-direction: column; gap: 16px; }
.portal-search-bar { display: flex; align-items: center; gap: 16px; background: var(--g100); border: 1px solid var(--g400); border-radius: var(--radius-xl); padding: 16px 28px; transition: border-color 0.2s; }
.portal-search-bar:focus-within { border-color: var(--orange); }
.portal-search-bar svg { width: 20px; height: 20px; flex-shrink: 0; color: var(--g600); }
.portal-search-input { flex: 1; background: none; border: none; outline: none; font-family: var(--font-body); font-size: 16px; color: var(--white); }
.portal-search-input::placeholder { color: var(--g600); }
.portal-search-clear { background: none; border: none; color: var(--g600); font-family: var(--font-body); font-size: 14px; cursor: pointer; padding: 4px 8px; border-radius: 4px; transition: color 0.2s; }
.portal-search-clear:hover { color: var(--orange); }
.portal-search-clear.hidden { display: none; }
.portal-filter-bar { display: flex; flex-wrap: wrap; gap: 8px; }
.portal-filter-btn { background: var(--g100); border: 1px solid var(--g400); color: var(--g700); font-family: var(--font-body); font-size: 13px; font-weight: 500; padding: 6px 16px; border-radius: 20px; cursor: pointer; transition: all 0.2s; }
.portal-filter-btn:hover, .portal-filter-btn.active { background: var(--orange); border-color: var(--orange); color: var(--black); }

/* ── NAV DROPDOWNS ─────────────────────────────────────────────────────────── */
.nav-dropdown { position: relative; }
.nav-dropdown-btn {
  background: none; border: none; cursor: pointer;
  font-family: var(--font-body); font-size: 12px; font-weight: 500;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--g700); transition: color 0.2s;
  display: flex; align-items: center; gap: 5px; padding: 0;
}
.nav-dropdown-btn:hover { color: var(--white); }
.nav-dropdown-btn.engineer-btn { color: var(--orange); }
.nav-dropdown-btn.engineer-btn:hover { color: #ff9f6a; }
.nav-dropdown-menu {
  display: none;
  position: absolute; top: calc(100% + 14px); left: 50%;
  transform: translateX(-50%);
  background: #111; border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px; padding: 8px 0; min-width: 200px;
  box-shadow: 0 16px 48px rgba(0,0,0,0.6);
  z-index: 9999;
}
.nav-dropdown.open .nav-dropdown-menu { display: block; }
.nav-dropdown-item {
  display: block; padding: 10px 20px;
  font-family: var(--font-body); font-size: 13px; font-weight: 500;
  letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--g700); transition: color 0.2s, background 0.2s;
  white-space: nowrap;
}
.nav-dropdown-item:hover { color: var(--white); background: rgba(255,255,255,0.05); }
.nav-dropdown-divider { height: 1px; background: rgba(255,255,255,0.08); margin: 6px 0; }
.engineer-menu .nav-dropdown-item:hover { color: var(--orange); }
@media (max-width: 900px) {
  .nav-dropdown { display: none; }
}

/* Footer contact link */
.footer-contact-link {
  display: inline-block;
  color: var(--orange);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-decoration: none;
  margin-bottom: 10px;
  transition: opacity 0.2s;
}
.footer-contact-link:hover { opacity: 0.75; }