/* ============================================================
   TRIFLOW INDIA — Design System
   Pure static CSS. No build step. Drop onto any host.
   ============================================================ */

/* ---------- 1. Design tokens ---------- */
:root {
  /* Brand palette — derived from the TFI logo (blue #0a119d, red #d00102, yellow #ffd80a) */
  --navy-900: #05083a;
  --navy-800: #0a1170;   /* deep royal navy from the logo blue */
  --navy-700: #131d9e;
  --navy-600: #1c28bf;
  --blue-500: #1822c4;   /* logo blue — UI primary */
  --blue-400: #3340da;
  --blue-300: #8a92ec;
  --red-500:  #e01620;   /* logo red */
  --red-400:  #f23a43;
  --amber-500: #ffce14;  /* logo yellow (token kept for existing components) */
  --amber-400: #ffd84d;
  --amber-300: #ffe89a;

  /* Neutrals */
  --ink: #0c1726;
  --slate-700: #2b3a4f;
  --slate-500: #5a6b80;
  --slate-400: #8595a8;
  --slate-300: #b9c4d2;
  --slate-200: #dde4ec;
  --slate-100: #eef2f7;
  --slate-50:  #f6f9fc;
  --white: #ffffff;

  /* Semantic */
  --bg: var(--white);
  --bg-alt: var(--slate-50);
  --text: var(--ink);
  --muted: var(--slate-500);
  --line: var(--slate-200);
  --primary: var(--blue-500);
  --accent: var(--amber-500);
  --accent-red: var(--red-500);

  /* Typography */
  --font-sans: "Manrope", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --fs-hero: clamp(2.4rem, 6vw, 4.4rem);
  --fs-h2: clamp(1.7rem, 3.4vw, 2.7rem);
  --fs-h3: clamp(1.2rem, 2vw, 1.5rem);
  --lh-tight: 1.08;

  /* Spacing / shape */
  --container: 1200px;
  --gap: clamp(1rem, 2.5vw, 2rem);
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;
  --radius-pill: 999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(7,24,47,.06), 0 2px 6px rgba(7,24,47,.06);
  --shadow: 0 8px 24px rgba(7,24,47,.08), 0 2px 8px rgba(7,24,47,.05);
  --shadow-lg: 0 24px 60px rgba(7,24,47,.14);
  --shadow-amber: 0 12px 30px rgba(24,34,196,.30);
  --shadow-yellow: 0 12px 30px rgba(255,206,20,.45);

  --ease: cubic-bezier(.2,.7,.2,1);
  --header-h: 78px;
}

/* ---------- 2. Reset / base ---------- */
*,*::before,*::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--header-h) + 16px); }
body {
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; padding: 0; }
button { font: inherit; cursor: pointer; border: none; background: none; }
h1,h2,h3,h4 { line-height: var(--lh-tight); font-weight: 800; letter-spacing: -.02em; }
:focus-visible { outline: 3px solid var(--amber-400); outline-offset: 2px; border-radius: 4px; }

/* ---------- 3. Layout helpers ---------- */
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: clamp(1.1rem, 4vw, 2rem); }
.section { padding-block: clamp(3.5rem, 8vw, 6.5rem); }
.section--alt { background: var(--bg-alt); }
.section--navy { background: var(--navy-800); color: var(--slate-100); }
.center { text-align: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: .55rem;
  font-size: .8rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase;
  color: var(--primary);
}
.eyebrow::before { content: ""; width: 28px; height: 3px; border-radius: 3px; background: linear-gradient(90deg, var(--red-500), var(--blue-500) 50%, var(--amber-500)); }
.section--navy .eyebrow { color: var(--amber-400); }
.section-head { max-width: 720px; margin-bottom: clamp(2rem, 4vw, 3rem); }
.section-head.center { margin-inline: auto; }
.section-head h2 { font-size: var(--fs-h2); margin: .7rem 0 .8rem; }
.section-head p { color: var(--muted); font-size: 1.06rem; }
.section--navy .section-head p { color: var(--slate-300); }

/* ---------- 4. Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .6rem;
  padding: .85rem 1.6rem; border-radius: var(--radius-pill);
  font-weight: 700; font-size: .98rem; letter-spacing: -.01em;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease), color .2s;
  white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; }
.btn--primary { background: var(--primary); color: #fff; box-shadow: var(--shadow-amber); }
.btn--primary:hover { transform: translateY(-3px); background: var(--blue-400); }
.btn--yellow { background: var(--accent); color: var(--navy-900); box-shadow: var(--shadow-yellow); }
.btn--yellow:hover { transform: translateY(-3px); background: var(--amber-400); }
.btn--dark { background: var(--navy-800); color: var(--white); }
.btn--dark:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.btn--ghost { background: rgba(255,255,255,.08); color: var(--white); border: 1px solid rgba(255,255,255,.28); }
.btn--ghost:hover { background: rgba(255,255,255,.16); transform: translateY(-3px); }
.btn--outline { background: transparent; color: var(--navy-800); border: 1.5px solid var(--line); }
.btn--outline:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-3px); }
.btn--block { width: 100%; }

/* ---------- 5. Header / nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.82);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, box-shadow .3s, background .3s;
}
.site-header.is-scrolled { border-bottom-color: var(--line); box-shadow: var(--shadow-sm); }
.site-header::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--red-500), var(--blue-500) 50%, var(--amber-500)); z-index: 1; }
.nav { display: flex; align-items: center; justify-content: space-between; gap: 1rem; height: var(--header-h); }
.brand { display: inline-flex; align-items: center; gap: .6rem; }
.brand .logo { height: 42px; width: auto; }
.brand-badge { height: 46px; width: auto; }
.brand-word { display: flex; flex-direction: column; line-height: 1; }
.brand-word b { font-size: 1.22rem; font-weight: 800; letter-spacing: -.01em; color: var(--navy-800); }
.brand-word i { font-style: normal; font-size: .6rem; font-weight: 800; letter-spacing: .44em; color: var(--red-500); margin-top: 3px; }
.brand--light .brand-word b { color: #fff; }
.brand--light .brand-word i { color: var(--amber-400); }
.brand--light .brand-badge { background: #fff; border-radius: 50%; padding: 5px; box-shadow: 0 4px 14px rgba(0,0,0,.22); }
@media (max-width: 880px) { .brand-badge { height: 40px; } .brand-word b { font-size: 1.1rem; } }
.nav-links { display: flex; align-items: center; gap: .35rem; }
.nav-links > li > a {
  display: inline-flex; align-items: center; gap: .35rem;
  padding: .6rem .95rem; border-radius: var(--radius-pill);
  font-weight: 600; font-size: .96rem; color: var(--slate-700);
  transition: color .2s, background .2s;
}
.nav-links > li > a:hover, .nav-links > li > a.active { color: var(--navy-800); background: var(--slate-100); }
.nav-cta { display: flex; align-items: center; gap: .6rem; }

/* Mega menu */
.has-mega { position: relative; }
.mega {
  position: absolute; top: calc(100% + 14px); left: 50%; transform: translateX(-50%) translateY(8px);
  width: min(760px, 92vw);
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow-lg); padding: 1.2rem;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: .25rem .5rem;
  opacity: 0; visibility: hidden; transition: opacity .22s var(--ease), transform .22s var(--ease);
}
.has-mega:hover .mega, .has-mega:focus-within .mega { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.mega a {
  display: flex; align-items: center; gap: .55rem; padding: .55rem .6rem; border-radius: 10px;
  font-size: .9rem; font-weight: 600; color: var(--slate-700); transition: background .18s, color .18s;
}
.mega a:hover { background: var(--slate-100); color: var(--primary); }
.mega a .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); flex: none; }
.mega .mega-foot { grid-column: 1 / -1; margin-top: .5rem; padding-top: .8rem; border-top: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; font-size: .85rem; color: var(--muted); }

/* Mobile nav */
.nav-toggle { display: none; width: 44px; height: 44px; border-radius: 12px; align-items: center; justify-content: center; color: var(--navy-800); }
.nav-toggle svg { width: 26px; height: 26px; }
.mobile-nav { display: none; }

/* ---------- 6. Hero ---------- */
.hero { position: relative; color: var(--white); overflow: hidden; background: var(--navy-800); isolation: isolate; }
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -2;
  background:
    radial-gradient(1000px 600px at 80% -10%, rgba(40,60,230,.55), transparent 60%),
    radial-gradient(760px 560px at 4% 112%, rgba(255,206,20,.20), transparent 55%),
    radial-gradient(620px 520px at 102% 104%, rgba(224,22,32,.20), transparent 60%),
    linear-gradient(160deg, var(--navy-900), var(--navy-700) 62%, var(--navy-600));
}
.hero::after { /* fine grid texture */
  content: ""; position: absolute; inset: 0; z-index: -1; opacity: .35;
  background-image: linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 46px 46px; mask-image: radial-gradient(circle at 50% 40%, #000 30%, transparent 80%);
}
.hero-inner { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(2rem,5vw,4rem); align-items: center; padding-block: clamp(3.5rem, 8vw, 6rem); }
.hero-badge {
  display: inline-flex; align-items: center; gap: .5rem; padding: .45rem .9rem; margin-bottom: 1.4rem;
  background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.18); border-radius: var(--radius-pill);
  font-size: .82rem; font-weight: 700; letter-spacing: .02em; color: var(--amber-300);
}
.hero-badge .pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--amber-400); box-shadow: 0 0 0 0 rgba(255,184,61,.7); animation: pulse 2s infinite; }
@keyframes pulse { 0%{box-shadow:0 0 0 0 rgba(255,184,61,.6)} 70%{box-shadow:0 0 0 10px rgba(255,184,61,0)} 100%{box-shadow:0 0 0 0 rgba(255,184,61,0)} }
.hero h1 { font-size: var(--fs-hero); font-weight: 800; }
.hero h1 .grad { background: linear-gradient(100deg, var(--amber-400), var(--red-400)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.lead { margin: 1.3rem 0 2rem; font-size: 1.12rem; color: var(--slate-300); max-width: 38ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; }
.hero-trust { display: flex; flex-wrap: wrap; gap: 1.6rem; margin-top: 2.6rem; padding-top: 1.6rem; border-top: 1px solid rgba(255,255,255,.12); }
.hero-trust .t { }
.hero-trust .t b { display: block; font-size: 1.6rem; color: var(--white); letter-spacing: -.03em; }
.hero-trust .t span { font-size: .82rem; color: var(--slate-400); }

/* Hero visual — oil drop card stack */
.hero-visual { position: relative; min-height: 360px; display: grid; place-items: center; }
.drop-card {
  position: relative; width: min(360px, 80%); aspect-ratio: 4/5; border-radius: var(--radius-lg);
  background: linear-gradient(160deg, rgba(255,255,255,.14), rgba(255,255,255,.04));
  border: 1px solid rgba(255,255,255,.2); backdrop-filter: blur(8px);
  box-shadow: var(--shadow-lg); overflow: hidden; display: grid; place-items: center;
}
.drop-card .oil { position: absolute; inset: 0; background: radial-gradient(120px 120px at 50% 38%, rgba(246,168,33,.55), transparent 70%); }
.logo-puck { width: 64%; aspect-ratio: 1 / 1; background: #fff; border-radius: 26px; display: grid; place-items: center; box-shadow: 0 18px 44px rgba(0,0,0,.3); }
.logo-puck img { width: 80%; height: auto; }
.float-chip {
  position: absolute; background: var(--white); color: var(--navy-800); border-radius: var(--radius);
  box-shadow: var(--shadow-lg); padding: .7rem .9rem; display: flex; align-items: center; gap: .6rem; font-weight: 700; font-size: .85rem;
  animation: floaty 5s ease-in-out infinite;
}
.float-chip small { display:block; font-weight:600; color: var(--muted); font-size: .72rem; }
.float-chip .ic { width: 34px; height: 34px; border-radius: 10px; background: var(--slate-100); color: var(--primary); display: grid; place-items: center; }
.float-chip.c1 { top: 6%; left: -6%; }
.float-chip.c2 { bottom: 10%; right: -8%; animation-delay: -2.5s; }
.float-chip.c3 { bottom: 38%; left: -10%; animation-delay: -1.2s; }
@keyframes floaty { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-12px)} }

/* ---------- 7. Marquee / brand strip ---------- */
.brandstrip { background: var(--bg-alt); border-block: 1px solid var(--line); padding-block: 1.6rem; }
.brandstrip .container { display: flex; align-items: center; gap: clamp(1.5rem, 5vw, 4rem); flex-wrap: wrap; justify-content: center; }
.brandstrip .lbl { font-size: .8rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; color: var(--slate-400); }
.brandstrip .brands { display: flex; gap: clamp(1.4rem, 4vw, 3rem); flex-wrap: wrap; align-items: center; }
.brandstrip .brands b { font-size: 1.25rem; font-weight: 800; color: var(--slate-500); letter-spacing: .02em; transition: color .25s; }
.brandstrip .brands b:hover { color: var(--navy-800); }
.brandstrip .brands b span { color: var(--accent); }

/* ---------- 8. Cards / grids ---------- */
.grid { display: grid; gap: var(--gap); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.6rem; box-shadow: var(--shadow-sm); transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }

/* Category card */
.cat-card { display: flex; flex-direction: column; gap: .85rem; position: relative; overflow: hidden; }
.cat-card .ic {
  width: 56px; height: 56px; border-radius: 14px; display: grid; place-items: center;
  background: linear-gradient(150deg, var(--slate-100), #fff); border: 1px solid var(--line); color: var(--primary);
  transition: background .3s, color .3s, transform .3s;
}
.cat-card:hover .ic { background: var(--navy-800); color: var(--amber-400); transform: rotate(-6deg) scale(1.05); }
.cat-card .ic svg { width: 28px; height: 28px; }
.cat-card h3 { font-size: 1.06rem; font-weight: 700; }
.cat-card p { font-size: .9rem; color: var(--muted); margin: 0; }
.cat-card .more { margin-top: auto; font-size: .85rem; font-weight: 700; color: var(--primary); display: inline-flex; align-items: center; gap: .35rem; transition: gap .2s; }
.cat-card:hover .more { gap: .65rem; }

/* Feature / why-us card */
.feature { display: flex; gap: 1rem; }
.feature .ic { flex: none; width: 50px; height: 50px; border-radius: 14px; display: grid; place-items: center; background: rgba(31,111,229,.1); color: var(--primary); }
.section--navy .feature .ic { background: rgba(255,184,61,.14); color: var(--amber-400); }
.feature .ic svg { width: 26px; height: 26px; }
.feature h3 { font-size: 1.08rem; margin-bottom: .35rem; }
.feature p { font-size: .94rem; color: var(--muted); margin: 0; }
.section--navy .feature p { color: var(--slate-300); }

/* Stats band */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gap); }
.stat { text-align: center; padding: 1.4rem 1rem; }
.stat b { display: block; font-size: clamp(2.2rem, 5vw, 3.2rem); font-weight: 800; letter-spacing: -.03em; color: var(--white); }
.stat b .u { color: var(--amber-400); }
.stat span { font-size: .92rem; color: var(--slate-300); font-weight: 600; }

/* Industries */
.industry-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 1rem; }
.industry {
  display: flex; flex-direction: column; gap: .7rem; align-items: flex-start; padding: 1.3rem;
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--white);
  transition: transform .3s var(--ease), box-shadow .3s, border-color .3s; position: relative; overflow: hidden;
}
.industry::after { content:""; position:absolute; inset:auto -40% -60% auto; width: 120px; height: 120px; border-radius: 50%; background: radial-gradient(circle, rgba(246,168,33,.18), transparent 70%); opacity: 0; transition: opacity .3s; }
.industry:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: transparent; }
.industry:hover::after { opacity: 1; }
.industry .ic { width: 44px; height: 44px; border-radius: 12px; background: var(--navy-800); color: var(--amber-400); display: grid; place-items: center; }
.industry .ic svg { width: 24px; height: 24px; }
.industry h4 { font-size: 1rem; }
.industry p { font-size: .85rem; color: var(--muted); margin: 0; }

/* ---------- 9. Split / about ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.about-figure { position: relative; border-radius: var(--radius-lg); overflow: hidden; min-height: 420px; background: linear-gradient(160deg, var(--navy-700), var(--navy-900)); box-shadow: var(--shadow-lg); display: grid; place-items: center; color: #fff; }
.about-figure .badge-iso { position: absolute; bottom: 1.2rem; left: 1.2rem; background: #fff; color: var(--navy-800); border-radius: var(--radius); padding: .9rem 1.1rem; box-shadow: var(--shadow); display: flex; gap: .7rem; align-items: center; }
.about-figure .badge-iso b { font-size: 1.5rem; color: var(--primary); }
.checklist { display: grid; gap: .8rem; margin: 1.4rem 0 2rem; }
.checklist li { display: flex; gap: .7rem; align-items: flex-start; font-weight: 600; }
.checklist li svg { flex: none; width: 22px; height: 22px; color: var(--primary); margin-top: 2px; }

/* ---------- 10. CTA band ---------- */
.cta-band { position: relative; overflow: hidden; border-radius: var(--radius-lg); padding: clamp(2.4rem, 6vw, 4rem); color: #fff; background: var(--navy-800); isolation: isolate; }
.cta-band::before { content:""; position:absolute; inset:0; z-index:-1; background: radial-gradient(700px 400px at 85% 20%, rgba(246,168,33,.35), transparent 60%), radial-gradient(600px 400px at 0% 100%, rgba(31,111,229,.5), transparent 60%); }
.cta-band h2 { font-size: var(--fs-h2); max-width: 18ch; }
.cta-band p { color: var(--slate-300); margin: .8rem 0 1.8rem; max-width: 50ch; }
.cta-flex { display: flex; align-items: center; justify-content: space-between; gap: 2rem; flex-wrap: wrap; }

/* ---------- 11. Footer ---------- */
.site-footer { background: var(--navy-900); color: var(--slate-300); padding-block: clamp(3rem,6vw,4.5rem) 1.5rem; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 2.5rem; }
.site-footer .brand .logo { height: 40px; }
.site-footer h5 { color: #fff; font-size: .82rem; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 1.1rem; font-weight: 800; }
.footer-about p { font-size: .92rem; margin: 1rem 0 1.2rem; max-width: 34ch; }
.foot-links li { margin-bottom: .6rem; }
.foot-links a { font-size: .94rem; color: var(--slate-300); transition: color .2s, padding .2s; }
.foot-links a:hover { color: var(--amber-400); padding-left: 4px; }
.foot-contact li { display: flex; gap: .6rem; align-items: flex-start; font-size: .92rem; margin-bottom: .9rem; }
.foot-contact svg { flex: none; width: 18px; height: 18px; color: var(--amber-400); margin-top: 3px; }
.foot-contact a:hover { color: #fff; }
.socials { display: flex; gap: .6rem; margin-top: 1.2rem; }
.socials a { width: 40px; height: 40px; border-radius: 10px; background: rgba(255,255,255,.06); display: grid; place-items: center; color: var(--slate-300); transition: background .2s, color .2s, transform .2s; }
.socials a:hover { background: var(--amber-500); color: var(--navy-900); transform: translateY(-3px); }
.socials svg { width: 20px; height: 20px; }
.marts { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1rem; }
.mart-link { display: inline-flex; align-items: center; gap: .45rem; padding: .5rem .85rem; border: 1px solid rgba(255,255,255,.14); border-radius: var(--radius-pill); font-size: .82rem; font-weight: 700; color: var(--slate-200); transition: border-color .2s, color .2s, background .2s; }
.mart-link:hover { border-color: var(--amber-400); color: #fff; background: rgba(255,255,255,.05); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; margin-top: 2.6rem; padding-top: 1.5rem; border-top: 1px solid rgba(255,255,255,.1); font-size: .85rem; color: var(--slate-400); }
.footer-bottom a:hover { color: #fff; }

/* ---------- 12. Page hero (inner pages) ---------- */
.page-hero { background: var(--navy-800); color: #fff; position: relative; overflow: hidden; isolation: isolate; }
.page-hero::before { content:""; position:absolute; inset:0; z-index:-1; background: radial-gradient(800px 400px at 80% -20%, rgba(31,111,229,.5), transparent 60%), radial-gradient(600px 400px at 0% 120%, rgba(246,168,33,.22), transparent 55%); }
.page-hero .inner { padding-block: clamp(2.6rem, 6vw, 4.2rem); }
.crumbs { display: flex; gap: .5rem; align-items: center; font-size: .85rem; color: var(--slate-400); margin-bottom: 1rem; }
.crumbs a:hover { color: var(--amber-400); }
.crumbs span { color: var(--slate-500); }
.page-hero h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
.page-hero p { color: var(--slate-300); margin-top: .9rem; max-width: 60ch; font-size: 1.05rem; }

/* ---------- 13. Products page ---------- */
.products-layout { display: grid; grid-template-columns: 268px 1fr; gap: clamp(1.5rem, 4vw, 3rem); align-items: start; }
.cat-index { position: sticky; top: calc(var(--header-h) + 20px); }
.cat-index .search { position: relative; margin-bottom: 1rem; }
.cat-index .search input { width: 100%; padding: .8rem 1rem .8rem 2.6rem; border: 1px solid var(--line); border-radius: var(--radius-pill); font: inherit; font-size: .92rem; background: var(--white); transition: border-color .2s, box-shadow .2s; }
.cat-index .search input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 4px rgba(31,111,229,.12); }
.cat-index .search svg { position: absolute; left: .95rem; top: 50%; transform: translateY(-50%); width: 18px; height: 18px; color: var(--slate-400); }
.index-title { font-size: .78rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; color: var(--slate-400); padding: 0 .9rem .6rem; }
.index-list { max-height: 64vh; overflow-y: auto; padding-right: 4px; }
.index-list::-webkit-scrollbar { width: 7px; }
.index-list::-webkit-scrollbar-thumb { background: var(--slate-200); border-radius: 10px; }
.index-list a { display: flex; align-items: center; gap: .55rem; padding: .55rem .9rem; border-radius: 10px; font-size: .9rem; font-weight: 600; color: var(--slate-700); transition: background .15s, color .15s; }
.index-list a .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--slate-300); flex: none; transition: background .15s; }
.index-list a:hover { background: var(--slate-100); color: var(--navy-800); }
.index-list a.active { background: var(--navy-800); color: #fff; }
.index-list a.active .dot { background: var(--amber-400); }
.index-list a:hover .dot { background: var(--accent); }

.cat-section { scroll-margin-top: calc(var(--header-h) + 20px); margin-bottom: 2.6rem; }
.is-hidden { display: none !important; }
.cat-section-head { display: flex; align-items: center; gap: 1rem; margin-bottom: 1.2rem; padding-bottom: 1rem; border-bottom: 1px solid var(--line); }
.cat-section-head .ic { width: 52px; height: 52px; border-radius: 14px; background: var(--navy-800); color: var(--amber-400); display: grid; place-items: center; flex: none; }
.cat-section-head .ic svg { width: 28px; height: 28px; }
.cat-section-head h2 { font-size: 1.4rem; }
.cat-section-head p { font-size: .92rem; color: var(--muted); margin-top: .15rem; }
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: .9rem; }
.product-item { display: flex; gap: .7rem; align-items: flex-start; padding: .9rem 1rem; border: 1px solid var(--line); border-radius: 12px; background: var(--white); transition: border-color .2s, box-shadow .2s, transform .2s; }
.product-item:hover { border-color: var(--blue-300); box-shadow: var(--shadow-sm); transform: translateY(-2px); }
.product-item .pdot { flex: none; width: 36px; height: 36px; border-radius: 9px; background: var(--slate-100); color: var(--primary); display: grid; place-items: center; font-weight: 800; font-size: .8rem; }
.product-item b { font-size: .9rem; font-weight: 700; display: block; line-height: 1.3; }
.product-item span { font-size: .78rem; color: var(--muted); }
.no-results { display: none; text-align: center; padding: 3rem 1rem; color: var(--muted); }
.no-results.show { display: block; }

/* ---------- 14. Contact page ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(2rem, 5vw, 3.5rem); align-items: start; }
.contact-cards { display: grid; gap: 1rem; }
.contact-card { display: flex; gap: 1rem; align-items: flex-start; padding: 1.3rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); box-shadow: var(--shadow-sm); }
.contact-card .ic { flex: none; width: 50px; height: 50px; border-radius: 14px; background: rgba(31,111,229,.1); color: var(--primary); display: grid; place-items: center; }
.contact-card .ic svg { width: 26px; height: 26px; }
.contact-card h4 { font-size: 1rem; margin-bottom: .25rem; }
.contact-card p, .contact-card a { font-size: .94rem; color: var(--muted); }
.contact-card a:hover { color: var(--primary); }
.form-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: clamp(1.5rem, 4vw, 2.4rem); box-shadow: var(--shadow); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.field { margin-bottom: 1.1rem; }
.field label { display: block; font-size: .85rem; font-weight: 700; margin-bottom: .45rem; color: var(--slate-700); }
.field input, .field select, .field textarea {
  width: 100%; padding: .8rem 1rem; border: 1px solid var(--line); border-radius: 12px; font: inherit; font-size: .95rem;
  background: var(--slate-50); transition: border-color .2s, box-shadow .2s, background .2s;
}
.field textarea { resize: vertical; min-height: 130px; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--primary); background: #fff; box-shadow: 0 0 0 4px rgba(31,111,229,.12); }
.form-note { font-size: .82rem; color: var(--muted); margin-top: .8rem; }
.map-embed { border: 0; width: 100%; height: 340px; border-radius: var(--radius); box-shadow: var(--shadow); margin-top: 2rem; filter: grayscale(.2); }

/* ---------- 15. Scroll reveal ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal[data-d="1"] { transition-delay: .08s; }
.reveal[data-d="2"] { transition-delay: .16s; }
.reveal[data-d="3"] { transition-delay: .24s; }
.reveal[data-d="4"] { transition-delay: .32s; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .float-chip, .hero-badge .pulse { animation: none; }
  html { scroll-behavior: auto; }
}

/* ---------- 15b. Skip link ---------- */
.skip-link { position: absolute; left: -9999px; top: 0; z-index: 200; background: var(--navy-800); color: #fff; padding: .8rem 1.2rem; border-radius: 0 0 12px 0; font-weight: 700; }
.skip-link:focus { left: 0; }

/* ---------- 15c. Standards / approvals strip ---------- */
.standards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.standard { display: flex; gap: .9rem; align-items: center; padding: 1.1rem 1.2rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); box-shadow: var(--shadow-sm); }
.standard .ic { flex: none; width: 46px; height: 46px; border-radius: 12px; background: var(--navy-800); color: var(--amber-400); display: grid; place-items: center; }
.standard .ic svg { width: 24px; height: 24px; }
.standard b { display: block; font-size: 1.02rem; letter-spacing: -.01em; }
.standard span { font-size: .82rem; color: var(--muted); }
.oem-row { display: flex; flex-wrap: wrap; gap: .5rem .7rem; justify-content: center; margin-top: 1.4rem; }
.oem-row .chip { padding: .4rem .9rem; border: 1px solid var(--line); border-radius: var(--radius-pill); font-size: .85rem; font-weight: 700; color: var(--slate-600, var(--slate-500)); background: var(--white); }

/* ---------- 15d. FAQ ---------- */
.faq { max-width: 800px; margin-inline: auto; display: grid; gap: .8rem; }
.faq details { border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); box-shadow: var(--shadow-sm); overflow: hidden; transition: box-shadow .2s; }
.faq details[open] { box-shadow: var(--shadow); }
.faq summary { list-style: none; cursor: pointer; padding: 1.1rem 1.3rem; font-weight: 700; font-size: 1.02rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary .pm { flex: none; width: 26px; height: 26px; border-radius: 50%; background: var(--slate-100); color: var(--primary); display: grid; place-items: center; transition: transform .25s, background .25s, color .25s; font-size: 1.2rem; line-height: 1; }
.faq details[open] summary .pm { transform: rotate(45deg); background: var(--navy-800); color: var(--amber-400); }
.faq .ans { padding: 0 1.3rem 1.2rem; color: var(--muted); font-size: .96rem; }

/* ---------- 15e. Category page ---------- */
.cat-layout { display: grid; grid-template-columns: 1fr 320px; gap: clamp(1.5rem, 4vw, 3rem); align-items: start; }
.applies-list { display: grid; gap: .7rem; margin: 1rem 0 0; }
.applies-list li { display: flex; gap: .7rem; align-items: flex-start; font-weight: 600; }
.applies-list li svg { flex: none; width: 20px; height: 20px; color: var(--primary); margin-top: 3px; }
.cat-aside { position: sticky; top: calc(var(--header-h) + 20px); display: grid; gap: 1rem; }
.quote-card { background: var(--navy-800); color: #fff; border-radius: var(--radius-lg); padding: 1.6rem; box-shadow: var(--shadow-lg); }
.quote-card h3 { font-size: 1.2rem; margin-bottom: .5rem; }
.quote-card p { color: var(--slate-300); font-size: .92rem; margin-bottom: 1.1rem; }
.related-list { display: grid; gap: .5rem; }
.related-list a { display: flex; align-items: center; gap: .7rem; padding: .7rem .8rem; border: 1px solid var(--line); border-radius: 12px; font-weight: 700; font-size: .92rem; transition: border-color .2s, background .2s, transform .2s; }
.related-list a:hover { border-color: var(--blue-300); background: var(--slate-50); transform: translateX(3px); }
.related-list a .ic { width: 36px; height: 36px; border-radius: 10px; background: var(--slate-100); color: var(--primary); display: grid; place-items: center; flex: none; }
.related-list a .ic svg { width: 20px; height: 20px; }
@media (max-width: 880px) {
  .standards { grid-template-columns: repeat(2,1fr); }
  .cat-layout { grid-template-columns: 1fr; }
  .cat-aside { position: static; }
}
@media (max-width: 560px) { .standards { grid-template-columns: 1fr; } }

/* ---------- 16. Responsive ---------- */
@media (max-width: 1024px) {
  .grid--4 { grid-template-columns: repeat(2,1fr); }
  .industry-grid { grid-template-columns: repeat(2,1fr); }
  .stats { grid-template-columns: repeat(2,1fr); }
  .product-grid { grid-template-columns: repeat(2,1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
}
@media (max-width: 880px) {
  :root { --header-h: 68px; }
  .nav-links, .nav-cta .btn--text { display: none; }
  .nav-toggle { display: inline-flex; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { min-height: 280px; order: -1; }
  .float-chip.c1 { left: 2%; } .float-chip.c2 { right: 2%; } .float-chip.c3 { left: 0; }
  .split { grid-template-columns: 1fr; }
  .grid--3 { grid-template-columns: 1fr; }
  .grid--2 { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .products-layout { grid-template-columns: 1fr; }
  .cat-index { position: static; }
  .index-list { max-height: none; display: grid; grid-template-columns: repeat(2,1fr); gap: .2rem; }
  .cta-flex { flex-direction: column; align-items: flex-start; }

  /* Mobile nav panel */
  .mobile-nav { display: block; position: fixed; inset: var(--header-h) 0 0; background: var(--navy-800); color: #fff; z-index: 99; padding: 1.5rem clamp(1.1rem,4vw,2rem) 2rem; transform: translateX(100%); transition: transform .35s var(--ease); overflow-y: auto; visibility: hidden; }
  .mobile-nav.open { transform: none; visibility: visible; }
  .mobile-nav a { display: block; padding: .95rem .4rem; font-size: 1.1rem; font-weight: 700; border-bottom: 1px solid rgba(255,255,255,.08); }
  .mobile-nav .sub { padding-left: .8rem; }
  .mobile-nav .sub a { font-size: .98rem; font-weight: 600; color: var(--slate-300); border: none; padding: .55rem .4rem; }
  .mobile-nav .m-cta { margin-top: 1.4rem; display: grid; gap: .7rem; }
  body.nav-open { overflow: hidden; }
}
@media (max-width: 560px) {
  .grid--4, .industry-grid, .stats, .product-grid, .footer-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .index-list { grid-template-columns: 1fr; }
  .hero-trust { gap: 1.1rem; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}