/* ============================================================
   Ferrocast Industries — Precision Manufacturing (industrial, single-page)
   AnubTech demo
============================================================ */

:root {
  --steel-900: #14181d;
  --steel-800: #1b2128;
  --steel-700: #262e37;
  --steel-600: #38424e;
  --line: #2c353f;
  --ink: #eef2f6;
  --slate: #aab6c2;
  --muted: #7b8794;
  --amber: #f5a524;      /* safety amber */
  --amber-dark: #d98a10;
  --steel-blue: #4a90c2;
  --paper: #f4f6f8;
  --radius: 6px;
  --radius-lg: 12px;
  --shadow: 0 24px 60px -28px rgba(0,0,0,.7);
  --maxw: 1200px;
  --font-display: "Archivo", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-body); color: var(--ink); background: var(--steel-900); line-height: 1.65; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: 24px; }
.section { padding: clamp(60px, 8vw, 112px) 0; }

.eyebrow { font-family: var(--font-display); font-weight: 700; letter-spacing: .22em; text-transform: uppercase; font-size: .76rem; color: var(--amber); margin-bottom: 16px; display: inline-flex; align-items: center; gap: 10px; }
.eyebrow::before { content: ""; width: 28px; height: 2px; background: var(--amber); }
.h1 { font-family: var(--font-display); font-size: clamp(2.6rem, 6.5vw, 5rem); font-weight: 900; letter-spacing: -.02em; line-height: .98; text-transform: uppercase; }
.h2 { font-family: var(--font-display); font-size: clamp(1.9rem, 4.4vw, 3.1rem); font-weight: 800; letter-spacing: -.01em; line-height: 1.06; text-transform: uppercase; }
.h3 { font-family: var(--font-display); font-size: 1.3rem; font-weight: 700; letter-spacing: -.005em; }
.lead { font-size: clamp(1.05rem, 2vw, 1.28rem); color: var(--slate); }
.muted { color: var(--muted); }
.section__head { max-width: 680px; margin-bottom: 54px; }
.center { text-align: center; margin-inline: auto; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .5em; font-family: var(--font-display); font-weight: 700; letter-spacing: .04em; text-transform: uppercase; cursor: pointer; border: none; padding: 14px 28px; border-radius: var(--radius); transition: transform .16s, background .18s, color .18s, border-color .18s; font-size: .88rem; }
.btn--lg { padding: 17px 36px; font-size: .95rem; }
.btn--primary { background: var(--amber); color: var(--steel-900); }
.btn--primary:hover { background: var(--amber-dark); transform: translateY(-2px); }
.btn--outline { background: transparent; color: var(--ink); border: 1.5px solid var(--steel-600); }
.btn--outline:hover { border-color: var(--amber); color: var(--amber); }
.btn--dark { background: var(--steel-900); color: var(--ink); }
.btn--dark:hover { background: #000; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(20,24,29,.85); backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.site-header__inner { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.logo { display: flex; align-items: center; gap: 12px; font-family: var(--font-display); font-weight: 900; font-size: 1.3rem; letter-spacing: -.01em; text-transform: uppercase; }
.logo__mark { width: 38px; height: 38px; background: var(--amber); color: var(--steel-900); display: grid; place-items: center; font-size: 1.2rem; font-weight: 900; clip-path: polygon(15% 0, 100% 0, 85% 100%, 0 100%); }
.logo small { display: block; font-family: var(--font-body); font-weight: 500; font-size: .56rem; letter-spacing: .28em; color: var(--muted); margin-top: 1px; }
.nav-links { display: flex; align-items: center; gap: 30px; }
.nav-links > a { font-family: var(--font-display); font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--slate); font-size: .82rem; transition: color .2s; }
.nav-links > a:hover { color: var(--ink); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 26px; height: 2.5px; background: var(--ink); transition: .3s; }

/* Hero */
.hero { position: relative; min-height: 92vh; display: flex; align-items: center; overflow: hidden; }
.hero__bg { position: absolute; inset: 0; z-index: -2; background: linear-gradient(100deg, rgba(20,24,29,.96) 0%, rgba(20,24,29,.7) 50%, rgba(20,24,29,.35) 100%), url("../assets/img/hero-bg.jpg") center/cover no-repeat; }
.hero__grid-lines { position: absolute; inset: 0; z-index: -1; background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px); background-size: 60px 60px; opacity: .18; mask-image: radial-gradient(circle at 70% 50%, #000, transparent 75%); }
.hero__inner { max-width: 760px; padding: 90px 0; }
.hero__title { margin-bottom: 24px; }
.hero__title span { color: var(--amber); }
.hero__lead { max-width: 560px; margin-bottom: 36px; }
.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 52px; }
.hero__stats { display: flex; gap: 44px; flex-wrap: wrap; border-top: 1px solid var(--line); padding-top: 28px; }
.hero__stats div strong { font-family: var(--font-display); display: block; font-size: 2rem; font-weight: 800; color: var(--amber); }
.hero__stats div span { color: var(--slate); font-size: .84rem; text-transform: uppercase; letter-spacing: .06em; }

/* Marquee */
.marquee { background: var(--amber); color: var(--steel-900); overflow: hidden; padding: 14px 0; border-top: 3px solid var(--steel-900); border-bottom: 3px solid var(--steel-900); }
.marquee__track { display: flex; gap: 40px; white-space: nowrap; width: max-content; animation: scroll 26s linear infinite; font-family: var(--font-display); font-weight: 800; font-size: 1.05rem; letter-spacing: .04em; text-transform: uppercase; }
.marquee__track span { display: inline-flex; align-items: center; gap: 40px; }
.marquee__track span::after { content: "◆"; font-size: .7rem; }
@keyframes scroll { to { transform: translateX(-50%); } }

/* Capabilities */
.section--panel { background: var(--steel-800); }
.cap-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
.cap { background: var(--steel-800); padding: 36px 32px; transition: background .22s; }
.cap:hover { background: var(--steel-700); }
.cap__ic { width: 54px; height: 54px; border-radius: var(--radius); background: var(--steel-900); color: var(--amber); display: grid; place-items: center; font-size: 1.5rem; margin-bottom: 20px; border: 1px solid var(--line); }
.cap h3 { margin-bottom: 10px; }
.cap p { color: var(--slate); font-size: .96rem; }

/* Industries */
.ind-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.ind { position: relative; border-radius: var(--radius-lg); overflow: hidden; aspect-ratio: 3/4; }
.ind img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.ind:hover img { transform: scale(1.06); }
.ind::after { content: ""; position: absolute; inset: 0; background: linear-gradient(transparent 40%, rgba(20,24,29,.92)); }
.ind__label { position: absolute; inset: auto 0 0 0; padding: 22px 20px; z-index: 2; }
.ind__label span { font-family: var(--font-display); font-weight: 700; text-transform: uppercase; letter-spacing: .04em; font-size: 1.05rem; }
.ind__label small { display: block; color: var(--amber); font-size: .74rem; letter-spacing: .1em; text-transform: uppercase; margin-top: 3px; }

/* Process */
.process { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.proc { position: relative; padding-top: 30px; border-top: 2px solid var(--steel-600); }
.proc__num { font-family: var(--font-display); font-size: 3rem; font-weight: 900; color: var(--steel-700); line-height: .8; margin-bottom: 14px; -webkit-text-stroke: 1px var(--steel-600); }
.proc h3 { margin-bottom: 8px; }
.proc p { color: var(--slate); font-size: .94rem; }

/* Stats band */
.stats-band { background: var(--amber); color: var(--steel-900); }
.stats-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.stat-b { text-align: center; }
.stat-b strong { font-family: var(--font-display); display: block; font-size: clamp(2.4rem, 5vw, 3.6rem); font-weight: 900; letter-spacing: -.02em; }
.stat-b span { font-weight: 600; font-size: .86rem; text-transform: uppercase; letter-spacing: .06em; opacity: .85; }

/* Certifications */
.certs { display: flex; flex-wrap: wrap; gap: 16px; }
.cert { display: flex; align-items: center; gap: 14px; background: var(--steel-800); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 24px; flex: 1 1 220px; }
.cert__ic { width: 42px; height: 42px; border-radius: 50%; background: var(--steel-900); color: var(--amber); display: grid; place-items: center; font-size: 1.2rem; flex-shrink: 0; }
.cert strong { font-family: var(--font-display); display: block; font-size: 1rem; }
.cert span { color: var(--muted); font-size: .82rem; }

/* About split */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(36px, 6vw, 80px); align-items: center; }
.split__media img { width: 100%; aspect-ratio: 4/3; object-fit: cover; border-radius: var(--radius-lg); border: 1px solid var(--line); }
.split__body p { color: var(--slate); margin-top: 20px; }
.split__list { list-style: none; margin-top: 26px; display: grid; gap: 12px; }
.split__list li { display: flex; gap: 12px; align-items: flex-start; color: var(--ink); font-weight: 500; }
.split__list li::before { content: "▸"; color: var(--amber); font-weight: 900; }

/* Quote / CTA form */
.quote { background: var(--steel-800); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; display: grid; grid-template-columns: 1fr 1.1fr; }
.quote__intro { padding: clamp(34px, 5vw, 56px); background: var(--steel-700); border-right: 1px solid var(--line); }
.quote__intro p { color: var(--slate); margin-top: 16px; }
.quote__contact { margin-top: 28px; display: grid; gap: 12px; }
.quote__contact a { display: flex; align-items: center; gap: 12px; font-weight: 600; }
.quote__contact .ic { width: 38px; height: 38px; border-radius: var(--radius); background: var(--steel-900); color: var(--amber); display: grid; place-items: center; }
.form { padding: clamp(34px, 5vw, 56px); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { margin-bottom: 18px; }
.field label { display: block; font-family: var(--font-display); font-weight: 600; text-transform: uppercase; letter-spacing: .06em; font-size: .74rem; margin-bottom: 8px; color: var(--slate); }
.field input, .field select, .field textarea { width: 100%; padding: 13px 15px; border: 1.5px solid var(--line); border-radius: var(--radius); font: inherit; color: var(--ink); background: var(--steel-900); transition: border .2s; }
.field input::placeholder, .field textarea::placeholder { color: var(--muted); }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--amber); }
.field select option { background: var(--steel-800); }
.form-note { margin-top: 14px; text-align: center; font-weight: 600; color: var(--amber); }

/* Footer */
.site-footer { background: var(--steel-900); border-top: 1px solid var(--line); color: var(--slate); padding-top: 60px; }
.site-footer__grid { display: grid; grid-template-columns: 1.7fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 42px; }
.site-footer .logo { color: #fff; margin-bottom: 14px; }
.site-footer p { color: var(--muted); font-size: .94rem; max-width: 280px; }
.site-footer h4 { color: #fff; font-family: var(--font-display); text-transform: uppercase; letter-spacing: .06em; font-size: .88rem; margin-bottom: 14px; }
.site-footer ul { list-style: none; display: grid; gap: 10px; }
.site-footer ul a, .site-footer ul li { color: var(--muted); font-size: .92rem; }
.site-footer ul a:hover { color: var(--amber); }
.site-footer__base { border-top: 1px solid var(--line); padding: 22px 0; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: .84rem; color: var(--muted); }

/* Reveal */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s, transform .7s; }
.reveal.is-visible { opacity: 1; transform: none; }

/* Responsive */
@media (max-width: 940px) {
  .nav-links { position: fixed; inset: 76px 0 auto 0; flex-direction: column; align-items: flex-start; gap: 4px; background: var(--steel-800); border-bottom: 1px solid var(--line); padding: 16px 24px 24px; transform: translateY(-140%); transition: transform .3s; }
  .nav-links.is-open { transform: none; }
  .nav-links > a { width: 100%; padding: 13px 0; }
  .nav-links .btn { width: 100%; margin-top: 8px; }
  .nav-toggle { display: flex; }
  .cap-grid { grid-template-columns: 1fr 1fr; }
  .ind-grid, .process, .stats-4 { grid-template-columns: 1fr 1fr; }
  .split, .quote { grid-template-columns: 1fr; }
  .quote__intro { border-right: 0; border-bottom: 1px solid var(--line); }
  .site-footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .cap-grid, .ind-grid, .process, .stats-4, .form-row { grid-template-columns: 1fr; }
  .site-footer__grid { grid-template-columns: 1fr; }
}