/* ═══════════════ 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.preload-lock { overflow: hidden; height: 100vh; }

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; }

/* ═══ MOLTEN SCROLL RAIL — every page ═══ */
.molten-rail {
  position: fixed; top: 0; right: 0; bottom: 0; width: 3px; z-index: 950;
  background: var(--line); pointer-events: none;
  overflow: hidden;
}
.molten-rail-fill {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%;
  transform: scaleY(0); transform-origin: top;
  background: linear-gradient(180deg, #ffd166 0%, var(--molten) 45%, var(--molten-deep) 100%);
  background-size: 100% 240%;
  animation: moltenFlow 3.5s linear infinite;
}
@keyframes moltenFlow {
  0% { background-position: 0 0%; }
  100% { background-position: 0 100%; }
}
.molten-rail-head {
  position: absolute; top: 0; left: 50%; width: 9px; height: 9px; border-radius: 50%;
  background: #ffd166; transform: translate(-50%, -50%);
  box-shadow: 0 0 8px 2px rgba(255, 209, 102, 0.9), 0 0 22px 6px rgba(255, 107, 26, 0.55);
  animation: moltenPulse 1.7s ease-in-out infinite;
}
@keyframes moltenPulse {
  0%, 100% { transform: translate(-50%, -50%) scale(1); }
  50% { transform: translate(-50%, -50%) scale(1.35); }
}
@media (max-width: 900px) {
  .molten-rail { width: 2px; }
  .molten-rail-head { width: 7px; height: 7px; }
}
@media (prefers-reduced-motion: reduce) {
  .molten-rail-fill { animation: none; }
  .molten-rail-head { animation: 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, .nav-links a.active { 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; }
.hero-stage-word::before {
  content: ""; position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  width: min(94vw, 980px); height: min(74vh, 540px);
  background: radial-gradient(ellipse at center, rgba(12,12,14,0.62) 0%, rgba(12,12,14,0.34) 50%, transparent 78%);
  z-index: -1; pointer-events: none;
}
.stage-num {
  font-family: var(--font-head); font-size: 0.8rem; letter-spacing: 0.5em;
  color: var(--molten); margin-bottom: 1rem;
  text-shadow: 0 2px 10px rgba(0,0,0,0.85);
}
.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 2px 6px rgba(0,0,0,0.9), 0 10px 40px rgba(0,0,0,0.75), 0 0 90px rgba(0,0,0,0.5);
}
.stage-cap {
  margin-top: 1.2rem; color: var(--ink); font-size: clamp(0.9rem, 1.3vw, 1.05rem); letter-spacing: 0.06em;
  text-shadow: 0 2px 10px rgba(0,0,0,0.9), 0 6px 24px rgba(0,0,0,0.6);
}
.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%; } }

/* ═══ PAGE HEADER (About / Quality / Products / Contact) ═══ */
.page-header {
  padding: clamp(9rem, 16vw, 12rem) clamp(1.5rem, 6vw, 6rem) clamp(4rem, 8vw, 6rem);
  border-bottom: 1px solid var(--line);
}
.page-header-eyebrow {
  display: block; font-size: 0.78rem; letter-spacing: 0.4em; text-transform: uppercase;
  color: var(--molten); margin-bottom: 1.6rem;
}
.page-header-title {
  font-family: var(--font-head); font-weight: 700;
  font-size: clamp(2.6rem, 7vw, 5.5rem); line-height: 1.02; letter-spacing: -0.01em;
  max-width: 34ch;
}
.page-header-title em { color: var(--molten); }
.page-header-sub {
  margin-top: 1.6rem; color: var(--ink-dim); font-size: clamp(0.95rem, 1.4vw, 1.1rem);
  max-width: 46ch;
}
.page-header-grid {
  display: grid; grid-template-columns: 1.3fr 1fr; gap: clamp(2rem, 5vw, 4rem); align-items: end;
}
.page-header-media {
  border-radius: 4px; overflow: hidden; height: clamp(200px, 26vh, 320px);
}
.page-header-media img { width: 100%; height: 100%; object-fit: cover; }
@media (max-width: 900px) {
  .page-header-grid { grid-template-columns: 1fr; }
  .page-header-media { order: -1; height: 220px; }
}

/* ═══ 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-body); 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(4rem, 8vw, 6rem) 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: 46ch;
}
.section-title em, .about-statement em, .green-line em, .footer-title em { color: var(--molten); }

/* ═══ ABOUT ═══ */
.about-intro {
  display: flex; flex-wrap: wrap; align-items: flex-start;
  gap: clamp(2.5rem, 6vw, 5rem); margin-bottom: 4rem;
}
.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;
  flex: 1 1 320px; max-width: 26ch; margin-bottom: 0;
}
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 2rem;
  flex: 1 1 420px; max-width: 42rem; align-self: flex-start;
  padding-top: 0.6rem;
}
.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; pointer-events: none;
  background: radial-gradient(circle at 85% -10%, rgba(255, 107, 26, 0.14), transparent 55%);
  opacity: 0; transition: opacity 0.5s ease;
}
.product-meta a { position: relative; z-index: 2; }
.product-card:hover { transform: translateY(-6px); border-color: rgba(255, 107, 26, 0.4); }
.product-card:hover::before { opacity: 1; }
.teaser-card-img {
  height: 160px; margin: -2.2rem -1.9rem 1.6rem; border-radius: 4px 4px 0 0; overflow: hidden;
}
.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;
}

/* ═══ PRODUCTS — SUB-SECTION HEADS (Ingots / Circles) ═══ */
.product-subsection { margin-top: clamp(2.5rem, 5vw, 3.5rem); }
.product-subsection:first-of-type { margin-top: 0; }
.product-subhead {
  font-family: var(--font-head); font-weight: 600;
  font-size: clamp(1.4rem, 2.6vw, 2rem); letter-spacing: -0.01em;
  margin-bottom: 0.6rem;
}
.product-subhead em { color: var(--molten); }
.product-subdesc { color: var(--ink-dim); font-size: 0.95rem; max-width: 56ch; }
.product-hero-img {
  height: clamp(220px, 32vh, 380px); border-radius: 4px; overflow: hidden;
  margin: 2.2rem 0 2.8rem;
}
.product-hero-img img { transition: transform 1s cubic-bezier(0.16, 1, 0.3, 1); }

/* ═══ SPEC CHIPS (alloy grades, standards) ═══ */
.spec-chips { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 1.6rem; }
.spec-chips span {
  font-size: 0.75rem; letter-spacing: 0.08em;
  color: var(--ink-dim); border: 1px solid var(--line);
  padding: 0.4rem 0.9rem; border-radius: 100px;
}
.spec-chips-label {
  display: block; font-size: 0.72rem; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--molten); margin-top: 2.4rem; margin-bottom: 0.8rem;
}

/* ═══ APPLICATIONS LIST ═══ */
.applications-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.9rem; margin-top: 1.6rem; list-style: none;
}
.applications-grid li {
  font-size: 0.88rem; color: var(--ink-dim);
  border-left: 2px solid rgba(255, 107, 26, 0.4); padding-left: 0.9rem;
}

/* ═══ MISSION / VISION ═══ */
.mv-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; margin-top: 3rem; }
.mv-card {
  border: 1px solid var(--line); border-radius: 4px; padding: clamp(2rem, 4vw, 2.6rem);
  background: linear-gradient(160deg, var(--bg-2), var(--bg));
}
.mv-card-label {
  display: block; font-family: var(--font-head); font-size: 0.75rem; letter-spacing: 0.3em;
  text-transform: uppercase; color: var(--molten); margin-bottom: 1.2rem;
}
.mv-card h3 {
  font-family: var(--font-head); font-weight: 600; font-size: clamp(1.2rem, 2.2vw, 1.5rem);
  line-height: 1.3; margin-bottom: 1rem;
}
.mv-card p { color: var(--ink-dim); font-size: 0.95rem; line-height: 1.7; }
@media (max-width: 900px) {
  .mv-grid { grid-template-columns: 1fr; }
}

/* ═══ TEAM / LEADERSHIP ═══ */
.team-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2.2rem; margin-top: 3rem;
}
.team-card { text-align: left; }
.team-avatar {
  width: 100%; aspect-ratio: 1 / 1; border-radius: 4px; overflow: hidden;
  background: linear-gradient(160deg, var(--bg-2), var(--bg));
  border: 1px solid var(--line);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1.2rem;
}
.team-avatar img { width: 100%; height: 100%; object-fit: cover; }
.team-avatar-initials {
  font-family: var(--font-head); font-weight: 700; font-size: 2.4rem;
  color: var(--molten); opacity: 0.85;
}
.team-name { font-family: var(--font-head); font-weight: 600; font-size: 1.05rem; }
.team-role { color: var(--molten); font-size: 0.78rem; letter-spacing: 0.1em; text-transform: uppercase; margin-top: 0.3rem; }
.team-bio { color: var(--ink-dim); font-size: 0.88rem; line-height: 1.65; margin-top: 0.9rem; }
.team-note {
  color: var(--ink-dim); font-size: 0.85rem; margin-top: 3rem; max-width: 60ch;
  border-top: 1px solid var(--line); padding-top: 1.6rem;
}

/* ═══ PROCESS TIMELINE (Quality page) ═══ */
.timeline { margin-top: 3.5rem; }
.timeline-item {
  display: grid; grid-template-columns: 4rem 1fr; gap: 1.5rem;
  padding: 1.8rem 0; border-top: 1px solid var(--line);
}
.timeline-item:last-child { border-bottom: 1px solid var(--line); }
.timeline-num { font-family: var(--font-head); font-weight: 700; font-size: 1.3rem; color: var(--molten); }
.timeline-body h4 { font-family: var(--font-head); font-weight: 600; font-size: 1.05rem; margin-bottom: 0.4rem; }
.timeline-body p { color: var(--ink-dim); font-size: 0.92rem; max-width: 56ch; }

/* ═══ CERTIFICATION BADGES ═══ */
.cert-badges { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2.5rem; }
.cert-badge {
  border: 1px solid var(--line); border-radius: 4px; padding: 1rem 1.4rem;
  font-size: 0.82rem; color: var(--ink-dim); display: flex; align-items: center; gap: 0.6rem;
}
.cert-badge strong { color: var(--ink); font-family: var(--font-head); }

/* ═══ SPEC TABLE (Products page) ═══ */
.spec-table-wrap { margin-top: 2.5rem; overflow-x: auto; }
.spec-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; min-width: 560px; }
.spec-table caption { text-align: left; color: var(--ink-dim); font-size: 0.8rem; margin-bottom: 0.8rem; }
.spec-table th, .spec-table td { padding: 0.9rem 1rem; text-align: left; border-bottom: 1px solid var(--line); }
.spec-table th {
  font-family: var(--font-head); font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--molten); font-weight: 600; border-bottom: 1px solid var(--line);
}
.spec-table td:first-child, .spec-table th:first-child { color: var(--ink); font-weight: 600; }

/* ═══ INDUSTRIES STRIP (Home page) ═══ */
.industries-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.2rem; margin-top: 3rem;
}
.industry-card {
  position: relative; border-radius: 4px; overflow: hidden;
  aspect-ratio: 4 / 3; border: 1px solid var(--line);
}
.industry-card img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}
.industry-card:hover img { transform: scale(1.08); }
.industry-card-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(12,12,14,0.92) 0%, rgba(12,12,14,0.2) 58%, transparent 78%);
}
.industry-card-label {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 1.1rem 1.2rem;
  font-family: var(--font-head); font-weight: 600; font-size: 0.95rem; color: var(--ink);
}

/* ═══ FAQ (native <details>/<summary> — works without JS, good for AEO) ═══ */
.faq-section { margin-top: 0; }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item:first-child { border-top: 1px solid var(--line); }
.faq-item summary {
  padding: 1.6rem 0; cursor: pointer; list-style: none;
  font-family: var(--font-head); font-weight: 600; font-size: 1.02rem;
  display: flex; justify-content: space-between; align-items: center; gap: 1.5rem;
  outline: none; border-radius: 2px;
}
.faq-item summary:focus-visible {
  outline: 1px solid var(--molten); outline-offset: 6px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: ""; flex-shrink: 0; width: 16px; height: 16px;
  background:
    linear-gradient(var(--molten), var(--molten)) center / 100% 2px no-repeat,
    linear-gradient(var(--molten), var(--molten)) center / 2px 100% no-repeat;
  transition: transform 0.3s ease;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-answer { color: var(--ink-dim); font-size: 0.95rem; line-height: 1.7; padding-top: 0.2rem; padding-bottom: 1.8rem; max-width: 68ch; }

/* ═══ 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; }

/* ═══ CONTACT PAGE ═══ */
.contact-grid {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(2.5rem, 6vw, 6rem);
  align-items: start;
}
.contact-info-block { margin-bottom: 2.6rem; }
.contact-info-block h4 {
  font-family: var(--font-head); font-size: 0.75rem; letter-spacing: 0.3em;
  text-transform: uppercase; color: var(--molten); margin-bottom: 0.9rem;
}
.contact-info-block p { color: var(--ink-dim); font-size: 0.98rem; }
.contact-info-block a { color: var(--ink); transition: color 0.3s ease; }
.contact-info-block a:hover { color: var(--molten); }
.contact-form { display: flex; flex-direction: column; gap: 1.4rem; }
.contact-field { display: flex; flex-direction: column; gap: 0.5rem; }
.contact-field label {
  font-size: 0.75rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-dim);
}
.contact-field input, .contact-field textarea {
  background: var(--bg-2); border: 1px solid var(--line); border-radius: 4px;
  padding: 0.9rem 1.1rem; color: var(--ink); font-family: var(--font-body); font-size: 0.95rem;
  transition: border-color 0.3s ease;
}
.contact-field input:focus, .contact-field textarea:focus {
  outline: none; border-color: rgba(255, 107, 26, 0.5);
}
.contact-field textarea { resize: vertical; min-height: 120px; }
.contact-submit {
  align-self: flex-start; font-size: 0.78rem; letter-spacing: 0.12em; text-transform: uppercase;
  border: 1px solid rgba(255, 107, 26, 0.5); color: var(--molten); background: transparent;
  padding: 0.85rem 2.2rem; border-radius: 100px; cursor: pointer;
  transition: background 0.3s ease, color 0.3s ease;
  font-family: var(--font-body);
}
.contact-submit:hover:not(:disabled) { background: var(--molten); color: var(--bg); }
.contact-submit:disabled { opacity: 0.5; cursor: not-allowed; }
.contact-status { font-size: 0.88rem; min-height: 1.4em; }
.contact-status-ok { color: #6fcf97; }
.contact-status-error { color: #eb5757; }

/* ═══ 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: 1.3fr 1fr 1fr 1fr; gap: 2.5rem;
  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: 1.1rem;
}
.footer-grid p { color: var(--ink-dim); font-size: 0.92rem; }
.footer-brand-logo { display: flex; align-items: center; gap: 0.7rem; margin-bottom: 1.1rem; }
.footer-brand-logo img { height: 2.1rem; width: auto; object-fit: contain; }
.footer-brand-name { font-family: var(--font-head); font-weight: 600; font-size: 1rem; letter-spacing: 0.02em; }
.footer-brand-name em { color: var(--molten); }
.footer-brand p { max-width: 30ch; line-height: 1.7; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 0.75rem; }
.footer-links a {
  color: var(--ink-dim); font-size: 0.92rem; transition: color 0.3s ease;
}
.footer-links a:hover { color: var(--molten); }
.footer-contact-block { margin-bottom: 1.6rem; }
.footer-contact-block:last-child { margin-bottom: 0; }
.footer-contact-block a { color: var(--ink-dim); transition: color 0.3s ease; }
.footer-contact-block a:hover { color: var(--molten); }
.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); }

/* ═══ MOBILE NAV (hamburger + full-screen menu) ═══ */
.nav-toggle {
  display: none; flex-direction: column; justify-content: center; gap: 5px;
  width: 2.2rem; height: 2.2rem; background: none; border: none; cursor: pointer;
  z-index: 1001; padding: 0;
}
.nav-toggle span {
  display: block; width: 100%; height: 2px; background: var(--ink);
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  position: fixed; inset: 0; z-index: 999; background: var(--bg);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2.2rem;
  opacity: 0; visibility: hidden; transform: translateY(-12px);
  transition: opacity 0.35s ease, transform 0.35s ease, visibility 0.35s;
}
.mobile-menu.open { opacity: 1; visibility: visible; transform: translateY(0); }
.mobile-menu a {
  font-family: var(--font-head); font-weight: 600; font-size: 1.6rem;
  text-transform: uppercase; letter-spacing: 0.04em; color: var(--ink-dim);
}
.mobile-menu a.active, .mobile-menu a:hover { color: var(--ink); }
.mobile-menu a.mobile-menu-cta { color: var(--molten); }

/* ═══ APPLICATIONS LIST (card style) ═══ */
.applications-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem; margin-top: 1.6rem; list-style: none;
}
.applications-grid li {
  font-size: 0.88rem; color: var(--ink-dim);
  border: 1px solid var(--line); border-radius: 4px;
  padding: 1rem 1.2rem; border-left: 2px solid rgba(255, 107, 26, 0.5);
  background: linear-gradient(160deg, var(--bg-2), var(--bg));
}

/* ═══ RESPONSIVE SPEC TABLES (stacked cards on mobile) ═══ */
@media (max-width: 640px) {
  .spec-table-wrap { overflow-x: visible; }
  .spec-table { min-width: 0; }
  .spec-table thead { display: none; }
  .spec-table, .spec-table tbody, .spec-table tr, .spec-table td, .spec-table caption {
    display: block; width: 100%;
  }
  .spec-table caption { text-align: left; margin-bottom: 1.2rem; }
  .spec-table tr {
    border: 1px solid var(--line); border-radius: 4px; margin-bottom: 1rem; padding: 0.4rem 0;
  }
  .spec-table td {
    border-bottom: none; padding: 0.5rem 1.1rem; display: flex; justify-content: space-between; gap: 1rem;
  }
  .spec-table td::before {
    content: attr(data-label); color: var(--molten); font-size: 0.72rem;
    letter-spacing: 0.1em; text-transform: uppercase; font-weight: 600;
  }
}

/* ═══ RESPONSIVE ═══ */
@media (max-width: 1100px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2.5rem 2rem; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .about-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .quality-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .footer-grid { grid-template-columns: 1fr; gap: 2.5rem; }
}