/* ═══════════════ SHUBHAM METALS — DEMO ═══════════════ */
:root {
  --bg: #0c0c0e;
  --bg-2: #121215;
  --ink: #e9e6e1;
  --ink-dim: #9a958d;
  --molten: #ff6b1a;
  --molten-deep: #c2410c;
  --line: rgba(233, 230, 225, 0.10);
  --font-head: "Archivo Expanded", "Archivo", sans-serif;
  --font-body: "Archivo", sans-serif;
  --font-accent: "Instrument Serif", serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: initial; }
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* grain overlay */
body::after {
  content: "";
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 9000;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

em { font-family: var(--font-accent); font-style: italic; font-weight: 400; }
img { display: block; width: 100%; height: 100%; object-fit: cover; }
a { color: inherit; text-decoration: none; }

/* ═══ PRELOADER ═══ */
.preloader {
  position: fixed; inset: 0; z-index: 10000;
  background: var(--bg);
  display: flex; align-items: center; justify-content: center;
}
.preloader-inner { width: min(420px, 70vw); text-align: center; }
.preloader-logo-img {
  height: 96px; width: auto; margin: 0 auto 2rem;
  object-fit: contain;
}
.preloader-track { height: 1px; background: var(--line); overflow: hidden; }
.preloader-bar { height: 100%; width: 0%; background: linear-gradient(90deg, var(--molten-deep), var(--molten)); }
.preloader-count {
  margin-top: 1rem; font-family: var(--font-head); font-size: 0.75rem;
  letter-spacing: 0.3em; color: var(--ink-dim);
}

/* ═══ NAV ═══ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 900;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.4rem clamp(1.5rem, 4vw, 3.5rem);
  transition: background 0.4s ease, backdrop-filter 0.4s ease, padding 0.4s ease;
}
.nav.scrolled {
  background: rgba(12, 12, 14, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  padding-top: 0.9rem; padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--line);
}
.nav-logo { display: flex; align-items: center; gap: 0.7rem; }
.nav-logo-img { height: 2.4rem; width: auto; object-fit: contain; }
.nav-logo-text { font-family: var(--font-head); font-weight: 600; font-size: 0.95rem; letter-spacing: 0.04em; }
.nav-logo-text em { color: var(--molten); margin-left: 0.15em; }
.nav-links { display: flex; gap: 2.2rem; }
.nav-links a {
  font-size: 0.8rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-dim);
  transition: color 0.3s ease;
}
.nav-links a:hover { color: var(--ink); }
.nav-cta {
  font-size: 0.78rem; letter-spacing: 0.12em; text-transform: uppercase;
  border: 1px solid rgba(255, 107, 26, 0.5); color: var(--molten);
  padding: 0.65rem 1.4rem; border-radius: 100px;
  transition: background 0.3s ease, color 0.3s ease;
}
.nav-cta:hover { background: var(--molten); color: var(--bg); }

/* ═══ HERO ═══ */
.hero { position: relative; height: 100vh; }
.hero-sticky { position: relative; height: 100vh; width: 100%; overflow: hidden; }
.hero-video {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; filter: brightness(0.82);
}
.hero-vignette {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at center, transparent 40%, rgba(12,12,14,0.55) 100%),
    linear-gradient(to top, rgba(12,12,14,0.9), transparent 30%),
    linear-gradient(to bottom, rgba(12,12,14,0.55), transparent 25%);
}
.hero-stage {
  position: absolute; inset: 0; z-index: 5;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; padding: 0 1.5rem; pointer-events: none;
}
.hero-eyebrow {
  font-size: 0.78rem; letter-spacing: 0.4em; text-transform: uppercase;
  color: var(--molten); margin-bottom: 1.6rem;
}
.hero-title {
  font-family: var(--font-head); font-weight: 700;
  font-size: clamp(3.2rem, 10vw, 8.5rem);
  line-height: 0.98; letter-spacing: -0.02em; text-transform: uppercase;
}
.hero-title em { color: var(--molten); text-transform: none; letter-spacing: 0; }
.hero-title-line { display: block; overflow: hidden; }
.hero-sub {
  margin-top: 2rem; color: var(--ink-dim); font-size: clamp(0.95rem, 1.4vw, 1.1rem); line-height: 1.7;
}
.hero-stage-word { opacity: 0; }
.stage-num {
  font-family: var(--font-head); font-size: 0.8rem; letter-spacing: 0.5em;
  color: var(--molten); margin-bottom: 1rem;
}
.stage-word {
  font-family: var(--font-head); font-weight: 700; text-transform: uppercase;
  font-size: clamp(3.5rem, 11vw, 9.5rem); line-height: 1; letter-spacing: -0.01em;
  text-shadow: 0 8px 60px rgba(0,0,0,0.6);
}
.stage-cap { margin-top: 1.2rem; color: var(--ink-dim); font-size: clamp(0.9rem, 1.3vw, 1.05rem); letter-spacing: 0.06em; }
.hero-scroll-hint {
  position: absolute; bottom: 2.2rem; left: 50%; transform: translateX(-50%);
  z-index: 6; display: flex; flex-direction: column; align-items: center; gap: 0.8rem;
}
.hero-scroll-hint span {
  font-size: 0.7rem; letter-spacing: 0.35em; text-transform: uppercase; color: var(--ink-dim);
}
.hero-scroll-line {
  width: 1px; height: 46px; background: var(--line); position: relative; overflow: hidden;
}
.hero-scroll-line::after {
  content: ""; position: absolute; top: -100%; left: 0; width: 100%; height: 100%;
  background: var(--molten); animation: scrollPulse 1.8s ease-in-out infinite;
}
@keyframes scrollPulse { 0% { top: -100%; } 60%, 100% { top: 100%; } }

/* ═══ MARQUEE ═══ */
.marquee {
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  padding: 1.2rem 0; overflow: hidden; background: var(--bg-2);
  position: relative; z-index: 10;
}
.marquee-track { display: flex; gap: 3rem; white-space: nowrap; width: max-content; align-items: center; }
.marquee-track span {
  font-family: var(--font-head); font-weight: 500; font-size: 0.85rem;
  letter-spacing: 0.3em; text-transform: uppercase; color: var(--ink-dim);
}
.marquee-track i { color: var(--molten); font-style: normal; font-size: 0.7rem; }

/* ═══ SECTIONS ═══ */
.section { padding: clamp(6rem, 12vw, 10rem) clamp(1.5rem, 6vw, 6rem); position: relative; }
.section-label {
  display: inline-block; font-size: 0.75rem; letter-spacing: 0.4em; text-transform: uppercase;
  color: var(--molten); margin-bottom: 2rem;
}
.section-title {
  font-family: var(--font-head); font-weight: 600;
  font-size: clamp(2rem, 4.5vw, 3.8rem); line-height: 1.12; letter-spacing: -0.01em;
  max-width: 18ch;
}
.section-title em, .about-statement em, .green-line em, .footer-title em { color: var(--molten); }

/* ═══ ABOUT ═══ */
.about-statement {
  font-family: var(--font-head); font-weight: 600;
  font-size: clamp(1.7rem, 4vw, 3.4rem); line-height: 1.2; letter-spacing: -0.01em;
  max-width: 24ch; margin-bottom: 4rem;
}
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 3rem;
  max-width: 62rem; margin-left: auto;
}
.about-copy { color: var(--ink-dim); font-size: 1.02rem; }
.stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem;
  margin-top: 6rem; padding-top: 3.5rem; border-top: 1px solid var(--line);
}
.stat-num {
  font-family: var(--font-head); font-weight: 700;
  font-size: clamp(2.2rem, 4.5vw, 3.6rem); line-height: 1;
}
.stat-num sup { font-size: 0.4em; color: var(--molten); margin-left: 0.1em; }
.stat-label { margin-top: 0.8rem; font-size: 0.8rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-dim); }

/* ═══ PROCESS — HORIZONTAL ═══ */
.process { position: relative; background: var(--bg-2); }
.process-pin {
  height: 100vh; display: flex; flex-direction: column; justify-content: center;
  overflow: hidden; padding: clamp(4rem, 8vh, 6rem) 0 3rem;
}
.process-head { padding: 0 clamp(1.5rem, 6vw, 6rem); margin-bottom: 3rem; }
.process-title {
  font-family: var(--font-head); font-weight: 600;
  font-size: clamp(1.9rem, 4vw, 3.4rem); letter-spacing: -0.01em;
}
.process-title em { color: var(--molten); }
.process-track {
  display: flex; gap: clamp(1.5rem, 3vw, 3rem);
  padding: 0 clamp(1.5rem, 6vw, 6rem);
  width: max-content; will-change: transform;
}
.process-card {
  width: clamp(300px, 34vw, 480px); flex-shrink: 0;
  background: var(--bg); border: 1px solid var(--line); border-radius: 4px;
  overflow: hidden;
  transition: border-color 0.4s ease;
}
.process-card:hover { border-color: rgba(255, 107, 26, 0.4); }
.process-card-img { height: clamp(180px, 24vh, 260px); overflow: hidden; }
.process-card-img img { transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1); }
.process-card:hover .process-card-img img { transform: scale(1.06); }
.process-card-body { padding: 1.8rem; }
.process-num {
  font-family: var(--font-head); font-size: 0.75rem; letter-spacing: 0.4em; color: var(--molten);
}
.process-card-body h3 {
  font-family: var(--font-head); font-weight: 600; font-size: 1.25rem;
  margin: 0.9rem 0 0.7rem;
}
.process-card-body p { color: var(--ink-dim); font-size: 0.92rem; }
.process-progress {
  margin: 3rem clamp(1.5rem, 6vw, 6rem) 0;
  height: 1px; background: var(--line);
}
.process-progress-bar { height: 100%; width: 0%; background: var(--molten); }

/* ═══ PRODUCTS ═══ */
.product-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem; margin-top: 4rem;
}
.product-card {
  border: 1px solid var(--line); border-radius: 4px; padding: 2.2rem 1.9rem;
  background: linear-gradient(160deg, var(--bg-2), var(--bg));
  position: relative; overflow: hidden;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.4s ease;
}
.product-card::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 85% -10%, rgba(255, 107, 26, 0.14), transparent 55%);
  opacity: 0; transition: opacity 0.5s ease;
}
.product-card:hover { transform: translateY(-6px); border-color: rgba(255, 107, 26, 0.4); }
.product-card:hover::before { opacity: 1; }
.product-grade {
  font-family: var(--font-head); font-weight: 700; font-size: 0.8rem;
  letter-spacing: 0.3em; color: var(--molten);
}
.product-card h3 {
  font-family: var(--font-head); font-weight: 600; font-size: 1.3rem;
  margin: 1.1rem 0 0.8rem; line-height: 1.25;
}
.product-card p { color: var(--ink-dim); font-size: 0.92rem; }
.product-meta {
  margin-top: 1.6rem; padding-top: 1.2rem; border-top: 1px solid var(--line);
  display: flex; gap: 1rem; flex-wrap: wrap;
}
.product-meta span {
  font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--ink-dim); border: 1px solid var(--line);
  padding: 0.35rem 0.8rem; border-radius: 100px;
}

/* ═══ QUALITY ═══ */
.quality { background: var(--bg-2); }
.quality-grid {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(2.5rem, 6vw, 6rem);
  align-items: center;
}
.quality-media {
  height: clamp(340px, 55vh, 560px); border-radius: 4px; overflow: hidden;
}
.quality-list { list-style: none; margin-top: 2.5rem; }
.quality-list li {
  padding: 1.6rem 0; border-bottom: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 0.4rem;
}
.quality-list li:first-child { border-top: 1px solid var(--line); }
.quality-list strong { font-family: var(--font-head); font-weight: 600; font-size: 1.05rem; }
.quality-list span { color: var(--ink-dim); font-size: 0.92rem; }

/* ═══ GREEN BAND ═══ */
.green { text-align: center; }
.green-line {
  font-family: var(--font-head); font-weight: 600;
  font-size: clamp(1.6rem, 3.6vw, 3rem); line-height: 1.25; letter-spacing: -0.01em;
  max-width: 28ch; margin: 0 auto;
}

/* ═══ FOOTER ═══ */
.footer {
  background: var(--bg-2); border-top: 1px solid var(--line);
  padding: clamp(5rem, 10vw, 8rem) clamp(1.5rem, 6vw, 6rem) 2rem;
}
.footer-cta { text-align: center; margin-bottom: 6rem; }
.footer-title {
  font-family: var(--font-head); font-weight: 600;
  font-size: clamp(2.2rem, 5.5vw, 4.6rem); line-height: 1.1; letter-spacing: -0.01em;
  margin-bottom: 2.5rem; max-width: 20ch; margin-left: auto; margin-right: auto;
}
.footer-mail {
  font-family: var(--font-accent); font-style: italic;
  font-size: clamp(1.2rem, 2.4vw, 1.8rem); color: var(--molten);
  border-bottom: 1px solid rgba(255, 107, 26, 0.4); padding-bottom: 0.2rem;
  transition: border-color 0.3s ease;
}
.footer-mail:hover { border-color: var(--molten); }
.footer-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem;
  padding: 3rem 0; border-top: 1px solid var(--line);
}
.footer-grid h4 {
  font-family: var(--font-head); font-size: 0.75rem; letter-spacing: 0.3em;
  text-transform: uppercase; color: var(--molten); margin-bottom: 1rem;
}
.footer-grid p { color: var(--ink-dim); font-size: 0.92rem; }
.footer-base {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem;
  padding-top: 2rem; border-top: 1px solid var(--line);
  font-size: 0.78rem; color: var(--ink-dim);
}
.footer-base a { color: var(--ink); border-bottom: 1px solid var(--line); }

/* ═══ RESPONSIVE ═══ */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .about-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .quality-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 2.5rem; }
}