@charset "UTF-8";
/* ============================================================
   Metal Hub (Bharat) Pvt. Ltd. — Design System
   Palette: brand orange #F58634 · storm navy · warm neutrals
   ============================================================ */

:root {
  --orange: #f58634;
  --orange-dark: #d96f1e;
  --orange-soft: #fff1e5;
  --navy: #101720;
  --navy-2: #17202c;
  --navy-3: #1f2a38;
  --ink: #1c2430;
  --body: #4b5563;
  --muted: #8b95a1;
  --paper: #ffffff;
  --cream: #f7f5f1;
  --line: #e7e3dc;
  --line-dark: rgba(255, 255, 255, 0.09);
  --text-on-dark: #e9ecf0;
  --muted-on-dark: #9aa6b4;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 10px 30px rgba(16, 23, 32, 0.1);
  --shadow-lg: 0 24px 60px rgba(16, 23, 32, 0.16);
  --font-head: "Space Grotesk", "Segoe UI", sans-serif;
  --font-body: "Inter", "Segoe UI", sans-serif;
  --container: 1180px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--body);
  background: var(--paper);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

h1, h2, h3, h4 {
  font-family: var(--font-head);
  color: var(--ink);
  line-height: 1.15;
  letter-spacing: -0.01em;
}

a { color: inherit; text-decoration: none; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

section { padding: 88px 0; }

/* ---------- Type helpers ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 14px;
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--orange);
}

.section-title { font-size: clamp(28px, 4vw, 42px); margin-bottom: 16px; }
.section-lead { max-width: 640px; font-size: 17px; }
.section-head { margin-bottom: 48px; }
.section-head.center { text-align: center; }
.section-head.center .section-lead { margin: 0 auto; }
.section-head.center .eyebrow::before { display: none; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 15px;
  padding: 14px 28px;
  border-radius: 999px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
  white-space: nowrap;
}
.btn svg { width: 17px; height: 17px; }
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: var(--orange);
  color: #fff;
  box-shadow: 0 8px 22px rgba(245, 134, 52, 0.35);
}
.btn-primary:hover { background: var(--orange-dark); }
.btn-outline { border-color: var(--line); color: var(--ink); background: transparent; }
.btn-outline:hover { border-color: var(--orange); color: var(--orange); }
.btn-outline-light { border-color: rgba(255, 255, 255, 0.35); color: #fff; background: transparent; }
.btn-outline-light:hover { border-color: var(--orange); color: var(--orange); }
.btn-lg { padding: 17px 34px; font-size: 16px; }

/* ---------- Top bar ---------- */
.topbar {
  background: var(--navy);
  color: var(--muted-on-dark);
  font-size: 13.5px;
  padding: 9px 0;
}
.topbar-inner { display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.topbar a { color: var(--text-on-dark); transition: color 0.2s; }
.topbar a:hover { color: var(--orange); }
.topbar .tb-group { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
.topbar .tb-item { display: inline-flex; align-items: center; gap: 7px; }
.topbar svg { width: 14px; height: 14px; fill: var(--orange); flex: none; }
.topbar .tb-tag { color: var(--muted-on-dark); letter-spacing: 0.06em; text-transform: uppercase; font-size: 12px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: #fff;
  border-bottom: 1px solid var(--line);
  transition: box-shadow 0.25s ease;
}
.site-header.scrolled { box-shadow: var(--shadow); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; height: 78px; }
.brand img { width: 210px; height: auto; mix-blend-mode: multiply; }

.site-nav { display: flex; align-items: center; gap: 34px; }
.site-nav > a {
  font-family: var(--font-head);
  font-weight: 500;
  font-size: 15.5px;
  color: var(--ink);
  padding: 6px 0;
  position: relative;
  transition: color 0.2s;
}
.site-nav > a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: var(--orange);
  transition: width 0.25s ease;
}
.site-nav > a:hover, .site-nav > a.active { color: var(--orange); }
.site-nav > a:hover::after, .site-nav > a.active::after { width: 100%; }

/* ---------- Nav dropdown ---------- */
.nav-item { position: relative; display: flex; align-items: center; gap: 3px; padding: 26px 0; }
.nav-item > a {
  font-family: var(--font-head);
  font-weight: 500;
  font-size: 15.5px;
  color: var(--ink);
  transition: color 0.2s;
}
.nav-item > a:hover, .nav-item > a.active, .nav-item:hover > a { color: var(--orange); }
.nav-caret {
  background: none;
  border: 0;
  cursor: pointer;
  color: var(--ink);
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
  padding: 0;
}
.nav-caret svg { width: 16px; height: 16px; transition: transform 0.2s; }
.nav-item:hover > .nav-caret svg, .nav-item.open > .nav-caret svg { transform: rotate(180deg); color: var(--orange); }
.nav-dropdown {
  position: absolute;
  top: 100%;
  left: -18px;
  min-width: 290px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  padding: 10px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
  z-index: 120;
}
.nav-item:hover > .nav-dropdown, .nav-item.open > .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: none;
}
.nav-dropdown a {
  display: block;
  padding: 9px 22px;
  font-family: var(--font-head);
  font-weight: 500;
  font-size: 14px;
  color: var(--ink);
  transition: color 0.15s, background 0.15s;
}
.nav-dropdown a:hover { color: var(--orange); background: var(--orange-soft); }
.nav-dropdown-all {
  margin-top: 8px;
  border-top: 1px solid var(--line);
  color: var(--orange) !important;
}
.nav-subitem { position: relative; display: flex; align-items: center; }
.nav-subitem > a { flex: 1; }
.nav-subitem > .nav-caret { margin-right: 14px; }
.nav-subitem > .nav-caret svg { transform: rotate(-90deg); }
.nav-subitem:hover > .nav-caret svg, .nav-subitem.open > .nav-caret svg { color: var(--orange); }
.nav-flyout {
  position: absolute;
  left: 100%;
  top: -10px;
  min-width: 250px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  padding: 10px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateX(8px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
}
.nav-subitem:hover > .nav-flyout, .nav-subitem.open > .nav-flyout {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.header-actions { display: flex; align-items: center; gap: 14px; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span { width: 24px; height: 2px; background: var(--ink); transition: 0.25s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero (video slider) ---------- */
.hero {
  position: relative;
  color: #fff;
  background: var(--navy) url("../img/thunderstorm-poster.jpg") center / cover no-repeat;
  overflow: hidden;
}
.hero-slider { height: 900px; }
.hero-slides { position: relative; flex: 1 1 auto; min-width: 0; height: 100%; }
.hero-slide {
  position: relative;
  height: 100%;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.9s ease, visibility 0.9s ease;
}
.hero-slide.active { opacity: 1; visibility: visible; }
.hero-slider .hero-slide { position: absolute; inset: 0; }
.hero-slider .hero-slide.active { position: relative; }
.hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 1;
  transition: opacity 0.35s ease;
}
.hero.video-fallback .hero-video { opacity: 0; }
.hero-scrim {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(13, 18, 25, 0.55), rgba(13, 18, 25, 0.35) 45%, rgba(13, 18, 25, 0.78)),
    linear-gradient(280deg, rgba(13, 18, 25, 0.72) 15%, rgba(13, 18, 25, 0.25) 65%, transparent);
}
.hero .container { position: relative; z-index: 2; }
.hero-inner {
  display: flex;
  align-items: center;
  gap: clamp(28px, 5vw, 64px);
  height: 100%;
}

/* Fixed product overlay + sliding caption ticker — the dominant hero visual (stays constant across all slides) */
.hero-product-overlay {
  position: relative;
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  pointer-events: none;
}
.hero-product-overlay img {
  width: clamp(340px, 34vw, 580px);
  height: auto;
  filter: drop-shadow(0 32px 44px rgba(0, 0, 0, 0.55));
}
.hero-ticker {
  height: 40px;
  overflow: hidden;
  width: 100%;
}
.hero-ticker ul {
  list-style: none;
  margin: 0;
  padding: 0;
  animation: heroTicker 15s infinite;
}
.hero-ticker li {
  box-sizing: border-box;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: #fff;
  background: rgba(13, 18, 25, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  padding: 0 20px;
  backdrop-filter: blur(6px);
}
.hero-ticker li::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--orange);
  margin-right: 9px;
  flex: none;
}
@keyframes heroTicker {
  0%, 16% { transform: translateY(0); }
  20%, 36% { transform: translateY(-40px); }
  40%, 56% { transform: translateY(-80px); }
  60%, 76% { transform: translateY(-120px); }
  80%, 96% { transform: translateY(-160px); }
  100% { transform: translateY(-200px); }
}

.hero-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  height: 100%;
  max-width: 480px;
}
.hero h1 {
  color: #fff;
  font-size: clamp(24px, 2.7vw, 34px);
  max-width: 460px;
  margin-bottom: 14px;
  text-shadow: 0 2px 24px rgba(0, 0, 0, 0.45);
}
.hero h1 em { font-style: normal; color: var(--orange); }
.hero p {
  max-width: 420px;
  font-size: 15px;
  color: #dde4eb;
  margin-bottom: 24px;
  text-shadow: 0 1px 14px rgba(0, 0, 0, 0.5);
}
.hero-ctas { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 30px; }
.hero-ctas .btn { padding: 11px 20px; font-size: 14px; }
.hero-trust { display: flex; flex-direction: column; gap: 8px; }
.hero-trust .ht-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: #e6ebf1;
  background: rgba(13, 18, 25, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(6px);
  padding: 7px 14px;
  border-radius: 999px;
  width: fit-content;
}
.hero-trust svg { width: 15px; height: 15px; fill: var(--orange); flex: none; }

/* Slide entrance for text */
.hero-slide .hero-content > * { opacity: 0; transform: translateY(22px); }
.hero-slide.active .hero-content > * {
  opacity: 1;
  transform: none;
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.hero-slide.active .hero-content > *:nth-child(2) { transition-delay: 0.12s; }
.hero-slide.active .hero-content > *:nth-child(3) { transition-delay: 0.24s; }
.hero-slide.active .hero-content > *:nth-child(4) { transition-delay: 0.36s; }

/* Slider controls */
.hero-arrow {
  position: absolute;
  bottom: 26px;
  z-index: 5;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.25);
  background: rgba(13, 18, 25, 0.45);
  backdrop-filter: blur(6px);
  color: #fff;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: background 0.2s, border-color 0.2s;
}
.hero-arrow:hover { background: var(--orange); border-color: var(--orange); }
.hero-arrow svg { width: 22px; height: 22px; }
.hero-arrow.prev { right: 88px; }
.hero-arrow.next { right: 26px; }
.hero-video-toggle {
  display: none;
  position: absolute;
  right: 150px;
  bottom: 26px;
  z-index: 5;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.25);
  background: rgba(13, 18, 25, 0.45);
  backdrop-filter: blur(6px);
  color: #fff;
  cursor: pointer;
  place-items: center;
}
.hero.video-fallback .hero-video-toggle { display: grid; }
.hero-video-toggle:hover { background: var(--orange); border-color: var(--orange); }
.hero-video-toggle svg { width: 22px; height: 22px; }
.hero-dots {
  position: absolute;
  bottom: 26px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  display: flex;
  gap: 10px;
}
.hero-dots button {
  width: 34px;
  height: 5px;
  border-radius: 999px;
  border: 0;
  background: rgba(255, 255, 255, 0.35);
  cursor: pointer;
  transition: background 0.25s;
}
.hero-dots button.active { background: var(--orange); }

/* ---------- Stats strip ---------- */
.stats { background: var(--orange); padding: 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat {
  text-align: center;
  padding: 38px 16px;
  color: #fff;
  border-right: 1px solid rgba(255, 255, 255, 0.22);
}
.stat:last-child { border-right: 0; }
.stat .num { font-family: var(--font-head); font-size: clamp(30px, 3.6vw, 44px); font-weight: 700; }
.stat .lbl { font-size: 14px; opacity: 0.92; margin-top: 4px; }

/* ---------- Earthing concept ---------- */
.concept-section { background: var(--navy); color: var(--muted-on-dark); }
.concept-section .section-title { color: #fff; }
.concept-section .section-lead { color: #b9c3cf; }
.concept-video { margin: 0; }
.concept-video-intro { max-width: 960px; margin-inline: auto; }
.concept-video-summary { max-width: 880px; margin: 80px auto 0; }
.concept-video-player { position: relative; }
.concept-video video {
  width: 100%;
  aspect-ratio: 16 / 9;
  display: block;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-dark);
  background: #06090d;
}
.concept-sound-start {
  display: none;
  position: absolute;
  inset: 50% auto auto 50%;
  transform: translate(-50%, -50%);
  z-index: 3;
  align-items: center;
  gap: 9px;
  padding: 13px 20px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 999px;
  background: rgba(10, 15, 22, 0.82);
  backdrop-filter: blur(8px);
  color: #fff;
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}
.concept-video-intro.sound-blocked .concept-sound-start { display: inline-flex; }
.concept-sound-start:hover { background: var(--orange); border-color: var(--orange); }
.concept-sound-start svg { width: 18px; height: 18px; }
.concept-video figcaption { display: grid; gap: 3px; margin-top: 14px; }
.concept-video figcaption strong { color: #fff; font-family: var(--font-head); font-size: 17px; }
.concept-video figcaption span { font-size: 14px; }
.concept-principle {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 22px;
  align-items: center;
  max-width: 900px;
  margin: 60px auto 42px;
  padding: 22px 0;
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
}
.concept-principle-mark {
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--orange);
}
.concept-principle p { font-size: 17px; color: #cbd3dc; }
.concept-principle strong { color: #fff; }
.concept-story {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.75fr);
  gap: 72px;
  align-items: start;
}
.concept-stage {
  position: sticky;
  top: 110px;
  height: min(68vh, 650px);
  min-height: 500px;
  overflow: hidden;
  border-radius: var(--radius-sm);
  background: #fff;
  border: 1px solid var(--line-dark);
}
.concept-scene {
  position: absolute;
  inset: 0;
  margin: 0;
  opacity: 0;
  transform: scale(1.025);
  transition: opacity 0.65s ease, transform 0.8s ease;
  pointer-events: none;
}
.concept-scene.active { opacity: 1; transform: scale(1); }
.concept-scene img { width: 100%; height: 100%; object-fit: contain; }
.concept-stage-progress {
  position: absolute;
  left: 18px;
  bottom: 18px;
  z-index: 3;
  display: flex;
  align-items: baseline;
  gap: 5px;
  padding: 8px 13px;
  border-radius: 999px;
  color: #fff;
  background: rgba(10, 15, 22, 0.78);
  backdrop-filter: blur(8px);
  font-family: var(--font-head);
}
.concept-stage-progress span { color: var(--orange); font-size: 18px; font-weight: 700; }
.concept-stage-progress small { color: #cbd3dc; font-size: 12px; }
.concept-chapter {
  min-height: 70vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 48px 0 48px 30px;
  border-left: 1px solid rgba(255, 255, 255, 0.1);
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.45s ease, transform 0.55s ease, border-color 0.45s ease;
}
.concept-chapter.active { opacity: 1; transform: none; border-color: var(--orange); }
.concept-chapter > span {
  color: var(--orange);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.concept-chapter h3 { color: #fff; font-size: clamp(26px, 3vw, 36px); margin: 12px 0 16px; }
.concept-chapter p { max-width: 420px; font-size: 17px; line-height: 1.65; }
.concept-chapter > small {
  margin-top: 28px;
  color: #788696;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.concept-system {
  display: grid;
  grid-template-columns: repeat(3, 1fr) auto;
  gap: 22px;
  align-items: center;
  margin-top: 54px;
  padding-top: 32px;
  border-top: 1px solid var(--line-dark);
}
.concept-system > div { display: grid; gap: 2px; }
.concept-system span { color: var(--orange); font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; }
.concept-system strong { color: #fff; font-family: var(--font-head); font-size: 18px; }
.concept-system small { font-size: 13px; color: var(--muted-on-dark); }

/* ---------- Product cards ---------- */
.cream { background: var(--cream); }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

.product-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.28s ease, box-shadow 0.28s ease, border-color 0.28s ease;
  display: flex;
  flex-direction: column;
}
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.product-card .pc-media { background: #fff; aspect-ratio: 4 / 3; overflow: hidden; }
.product-card .pc-media img { width: 100%; height: 100%; object-fit: contain; transition: transform 0.4s ease; }
.product-card:hover .pc-media img { transform: scale(1.05); }
.product-card .pc-body { padding: 24px 24px 26px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.product-card h3 { font-size: 19px; }
.product-card p { font-size: 14.5px; flex: 1; }
.pc-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 14.5px;
  color: var(--orange);
}
.pc-link svg { width: 15px; height: 15px; transition: transform 0.25s; }
.product-card:hover .pc-link svg { transform: translateX(4px); }

/* ---------- Feature cards ---------- */
.feature-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: transform 0.28s, box-shadow 0.28s;
}
.feature-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.feature-card .fc-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--orange-soft);
  display: grid;
  place-items: center;
  margin-bottom: 20px;
}
.feature-card .fc-icon svg { width: 27px; height: 27px; fill: var(--orange); }
.feature-card h3 { font-size: 18.5px; margin-bottom: 10px; }
.feature-card p { font-size: 14.5px; }

/* ---------- Process ---------- */
.dark { background: var(--navy); color: var(--muted-on-dark); }
.dark h2, .dark h3 { color: #fff; }
.dark .section-lead { color: var(--muted-on-dark); }

.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; counter-reset: step; }
.process-step {
  background: var(--navy-2);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  padding: 30px 26px;
  position: relative;
}
.process-step::before {
  counter-increment: step;
  content: "0" counter(step);
  font-family: var(--font-head);
  font-size: 44px;
  font-weight: 700;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(245, 134, 52, 0.55);
  display: block;
  margin-bottom: 14px;
}
.process-step h3 { font-size: 18px; margin-bottom: 9px; }
.process-step p { font-size: 14px; }

/* ---------- Industries ---------- */
.industry-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 18px; }
.industry {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 24px 12px;
  text-align: center;
  transition: transform 0.25s, box-shadow 0.25s;
}
.industry:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.industry svg { width: 30px; height: 30px; fill: var(--orange); margin: 0 auto 12px; display: block; }
.industry span { font-family: var(--font-head); font-weight: 500; font-size: 14px; color: var(--ink); }

/* ---------- Catalog CTA ---------- */
.catalog-band {
  background: linear-gradient(115deg, var(--navy) 40%, var(--navy-3));
  border-radius: var(--radius);
  padding: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.catalog-band::after {
  content: "";
  position: absolute;
  right: -70px;
  top: -70px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(245, 134, 52, 0.3), transparent 70%);
}
.catalog-band h2 { color: #fff; font-size: clamp(24px, 3vw, 34px); margin-bottom: 10px; }
.catalog-band p { color: var(--muted-on-dark); max-width: 480px; }
.catalog-band > div { position: relative; z-index: 2; }

/* ---------- Branches ---------- */
.branch-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.branch {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 26px;
  background: #fff;
  transition: transform 0.25s, box-shadow 0.25s;
}
.branch:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.branch .b-tag {
  display: inline-block;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--orange);
  background: var(--orange-soft);
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
}
.branch h3 { font-size: 19px; margin-bottom: 8px; }
.branch p { font-size: 14px; }

/* ---------- CTA band ---------- */
.cta-band { background: var(--navy); position: relative; overflow: hidden; text-align: center; }
.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 15% 110%, rgba(245, 134, 52, 0.2), transparent 55%),
    radial-gradient(ellipse at 85% -10%, rgba(245, 134, 52, 0.14), transparent 55%);
}
.cta-band .container { position: relative; z-index: 2; }
.cta-band h2 { color: #fff; font-size: clamp(30px, 4.4vw, 46px); max-width: 720px; margin: 0 auto 18px; }
.cta-band p { color: var(--muted-on-dark); max-width: 540px; margin: 0 auto 36px; font-size: 17px; }
.cta-band .hero-ctas { justify-content: center; margin-bottom: 0; }

/* ---------- Footer ---------- */
.site-footer { background: #0b1017; color: var(--muted-on-dark); padding: 72px 0 0; font-size: 14.5px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.3fr; gap: 44px; padding-bottom: 54px; }
.footer-brand .f-logo { font-family: var(--font-head); font-size: 23px; font-weight: 700; color: #fff; }
.footer-brand .f-logo em { font-style: normal; color: var(--orange); }
.footer-brand .f-tag { font-size: 12.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--orange); margin: 6px 0 18px; }
.site-footer h4 { color: #fff; font-size: 15.5px; letter-spacing: 0.04em; margin-bottom: 20px; }
.site-footer ul { list-style: none; display: grid; gap: 11px; }
.site-footer ul a { transition: color 0.2s; }
.site-footer ul a:hover { color: var(--orange); }
.f-contact li { display: flex; gap: 11px; align-items: flex-start; }
.f-contact svg { width: 16px; height: 16px; fill: var(--orange); flex: none; margin-top: 4px; }
.footer-bottom {
  border-top: 1px solid var(--line-dark);
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 13.5px;
}
.footer-bottom a { color: var(--text-on-dark); }
.footer-bottom a:hover { color: var(--orange); }

/* ---------- WhatsApp float ---------- */
.wa-float {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 80;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #25d366;
  display: grid;
  place-items: center;
  box-shadow: 0 10px 28px rgba(37, 211, 102, 0.45);
  transition: transform 0.25s;
}
.wa-float:hover { transform: scale(1.08); }
.wa-float svg { width: 30px; height: 30px; fill: #fff; }

/* ---------- Page hero (inner pages) ---------- */
.page-hero {
  background: var(--navy);
  color: #fff;
  padding: 76px 0 68px;
  position: relative;
  overflow: hidden;
}
.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 88% 20%, rgba(245, 134, 52, 0.18), transparent 55%);
}
.page-hero .container { position: relative; z-index: 2; }
.breadcrumb { font-size: 13.5px; color: var(--muted-on-dark); margin-bottom: 16px; display: flex; gap: 8px; flex-wrap: wrap; }
.breadcrumb a { color: var(--text-on-dark); }
.breadcrumb a:hover { color: var(--orange); }
.breadcrumb .sep { opacity: 0.5; }
.page-hero h1 { color: #fff; font-size: clamp(30px, 4.4vw, 48px); max-width: 780px; }
.page-hero .lead { color: var(--muted-on-dark); max-width: 620px; margin-top: 14px; font-size: 17px; }

/* ---------- Product detail ---------- */
.pd-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 54px; align-items: start; }
.pd-media {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--navy-2);
  position: sticky;
  top: 110px;
}
.pd-media img { width: 100%; }
.pd-body h2 { font-size: 26px; margin-bottom: 16px; }
.pd-body p + p { margin-top: 14px; }
.check-list { list-style: none; display: grid; gap: 13px; margin-top: 22px; }
.check-list li { display: flex; gap: 12px; align-items: flex-start; font-size: 15.5px; color: var(--ink); }
.check-list svg { width: 20px; height: 20px; fill: var(--orange); flex: none; margin-top: 2px; }

.spec-table { width: 100%; border-collapse: collapse; font-size: 15px; }
.spec-table th, .spec-table td { text-align: left; padding: 15px 20px; border: 1px solid var(--line); }
.spec-table th { background: var(--cream); font-family: var(--font-head); font-weight: 600; color: var(--ink); width: 38%; }
.spec-table tr:nth-child(even) td { background: #fbfaf8; }

.app-chips { display: flex; flex-wrap: wrap; gap: 12px; }
.app-chips span {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 10px 22px;
  font-size: 14px;
  font-family: var(--font-head);
  font-weight: 500;
  color: var(--ink);
}

/* ---------- Cable tray range ---------- */
.variant-chips { display: flex; flex-wrap: wrap; gap: 12px; }
.variant-chips a {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 10px 22px;
  font-size: 14px;
  font-family: var(--font-head);
  font-weight: 500;
  color: var(--ink);
  transition: border-color 0.2s, color 0.2s;
}
.variant-chips a:hover { border-color: var(--orange); color: var(--orange); }
.variant-chips a.current { background: var(--orange); border-color: var(--orange); color: #fff; }

.flagship-band { background: var(--navy); color: var(--muted-on-dark); }
.flagship-band .section-title { color: #fff; }
.flagship-band .section-lead { color: #b9c3cf; }
.flagship-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.flagship-card {
  background: var(--navy-2);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.25s, border-color 0.25s;
}
.flagship-card:hover { transform: translateY(-5px); border-color: var(--orange); }
.flagship-card img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; display: block; }
.flagship-card .fg-body { padding: 18px 20px 20px; }
.flagship-card h3 { color: #fff; font-size: 17px; margin-bottom: 6px; }
.flagship-card p { font-size: 13.5px; }
@media (max-width: 1020px) { .flagship-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 720px) { .flagship-grid { grid-template-columns: 1fr; } }

/* ---------- Product deep dive ---------- */
.pd-prose { max-width: 820px; }
.pd-prose p + p { margin-top: 16px; }
.pd-prose h3 { font-size: 21px; margin: 34px 0 12px; }

.note-band {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 16px;
  align-items: start;
  background: var(--orange-soft);
  border: 1px solid #f3ceab;
  border-radius: var(--radius-sm);
  padding: 20px 22px;
  margin-top: 30px;
  max-width: 820px;
}
.note-band .nb-icon {
  width: 46px; height: 46px; border-radius: 12px;
  background: var(--orange); display: grid; place-items: center; flex: none;
}
.note-band .nb-icon svg { width: 24px; height: 24px; fill: #fff; }
.note-band p { font-size: 14.5px; color: var(--ink); }
.note-band strong { font-family: var(--font-head); }

.diagram-fig {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
}
.diagram-fig img { width: 100%; display: block; }
.diagram-fig figcaption {
  padding: 14px 20px;
  font-size: 13.5px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.pd-gallery { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin-top: 30px; }
.pd-gallery .diagram-fig img { aspect-ratio: 4 / 3; object-fit: contain; background: #fff; }

.table-block + .table-block { margin-top: 44px; }
.table-block h3 { font-size: 20px; margin-bottom: 6px; }
.table-block .tb-sub { font-size: 14px; color: var(--muted); margin-bottom: 16px; }
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.table-scroll .spec-table { min-width: 640px; }
.spec-table thead th { background: var(--navy); color: #fff; font-family: var(--font-head); font-weight: 600; width: auto; }
.spec-table td:first-child { font-weight: 600; color: var(--ink); }

.steps-list { list-style: none; display: grid; gap: 0; max-width: 860px; counter-reset: pdstep; }
.steps-list li {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 20px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}
.steps-list li:last-child { border-bottom: 0; }
.steps-list li::before {
  counter-increment: pdstep;
  content: counter(pdstep, decimal-leading-zero);
  font-family: var(--font-head);
  font-size: 26px;
  font-weight: 700;
  color: var(--orange);
  line-height: 1.2;
}
.steps-list h4 { font-family: var(--font-head); font-size: 17px; color: var(--ink); margin-bottom: 5px; }
.steps-list p { font-size: 14.5px; }

.dd-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; margin-top: 40px; }
.dd-col { border-radius: var(--radius); padding: 28px; border: 1px solid var(--line); background: #fff; }
.dd-col h3 { font-size: 18px; display: flex; align-items: center; gap: 10px; margin-bottom: 18px; }
.dd-col.do h3 { color: #2e7d32; }
.dd-col.dont h3 { color: #c62828; }
.dd-col ul { list-style: none; display: grid; gap: 12px; }
.dd-col li { display: flex; gap: 11px; font-size: 14.5px; align-items: flex-start; }
.dd-col li::before { flex: none; font-weight: 700; margin-top: -1px; }
.dd-col.do li::before { content: "\2713"; color: #2e7d32; }
.dd-col.dont li::before { content: "\2715"; color: #c62828; }

.faq-list { max-width: 860px; display: grid; gap: 14px; }
.faq-list details {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 0 22px;
  transition: border-color 0.2s;
}
.faq-list details[open] { border-color: var(--orange); }
.faq-list summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 18px 0;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 15.5px;
  color: var(--ink);
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: "+";
  flex: none;
  font-size: 22px;
  color: var(--orange);
  transition: transform 0.2s;
}
.faq-list details[open] summary::after { transform: rotate(45deg); }
.faq-list details p { padding: 0 0 20px; font-size: 14.5px; }

@media (max-width: 720px) {
  .dd-grid, .pd-gallery { grid-template-columns: 1fr; }
  .steps-list li { grid-template-columns: 44px 1fr; gap: 14px; }
}

/* ---------- About ---------- */
.about-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 56px; align-items: center; }
.about-media { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-lg); }
.value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.25fr; gap: 52px; align-items: start; }
.contact-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 28px;
  display: flex;
  gap: 18px;
  align-items: flex-start;
}
.contact-card + .contact-card { margin-top: 18px; }
.contact-card .cc-icon {
  width: 50px;
  height: 50px;
  flex: none;
  border-radius: 12px;
  background: var(--orange-soft);
  display: grid;
  place-items: center;
}
.contact-card .cc-icon svg { width: 24px; height: 24px; fill: var(--orange); }
.contact-card h3 { font-size: 17px; margin-bottom: 6px; }
.contact-card p, .contact-card a { font-size: 14.5px; display: block; }
.contact-card a:hover { color: var(--orange); }

.quote-form {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 40px;
  box-shadow: var(--shadow);
}
.quote-form h2 { font-size: 24px; margin-bottom: 6px; }
.quote-form .qf-sub { font-size: 14.5px; margin-bottom: 28px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-family: var(--font-head); font-weight: 500; font-size: 14px; color: var(--ink); margin-bottom: 7px; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  border: 1.5px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 13px 16px;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--ink);
  background: #fdfcfb;
  transition: border-color 0.2s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--orange);
}
.form-note { font-size: 13px; color: var(--muted); margin-top: 14px; }

.map-wrap { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); margin-top: 60px; }
.map-wrap iframe { width: 100%; height: 420px; border: 0; display: block; }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
  .hero-video { display: none; }
  .hero-slide { transition: none; }
  .hero-video-toggle { display: none !important; }
  .hero-ticker ul { animation: none; }
  .concept-scene, .concept-chapter { transition: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1020px) {
  .grid-4, .branch-grid, .process-grid { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .industry-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .pd-layout, .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .pd-media { position: static; }
  .catalog-band { flex-direction: column; align-items: flex-start; }
  .concept-story { grid-template-columns: 1fr; gap: 0; }
  .concept-stage { top: 88px; height: 50vh; min-height: 360px; z-index: 2; }
  .concept-chapters { position: relative; z-index: 3; }
  .concept-chapter { min-height: 58vh; padding: 52px 24px; }
  .concept-system { grid-template-columns: repeat(3, 1fr); }
  .concept-system .btn { grid-column: 1 / -1; justify-self: start; }
  .hero-product-overlay img { width: clamp(240px, 30vw, 360px); }
}

@media (max-width: 720px) {
  section { padding: 64px 0; }
  .topbar .tb-tag, .topbar .tb-web { display: none; }
  .site-nav {
    position: fixed;
    top: 0;
    right: 0;
    width: 280px;
    height: 100vh;
    background: var(--navy);
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    padding: 96px 32px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s ease;
    z-index: 95;
  }
  .site-nav.open { opacity: 1; visibility: visible; box-shadow: -20px 0 60px rgba(0, 0, 0, 0.4); }
  .site-nav > a { color: #fff; font-size: 18px; padding: 12px 0; }
  .site-nav { overflow-y: auto; }
  .nav-item { flex-wrap: wrap; padding: 0; width: 100%; }
  .nav-item > a { color: #fff; font-size: 18px; padding: 12px 0; flex: 1; }
  .nav-caret { color: #fff; width: 34px; height: 34px; }
  .nav-caret svg { width: 20px; height: 20px; }
  .nav-dropdown, .nav-flyout {
    position: static;
    display: none;
    opacity: 1;
    visibility: visible;
    transform: none;
    min-width: 0;
    width: 100%;
    background: transparent;
    border: 0;
    box-shadow: none;
    padding: 0 0 8px 14px;
  }
  .nav-item.open > .nav-dropdown, .nav-subitem.open > .nav-flyout { display: block; }
  .nav-item:hover > .nav-dropdown { display: none; }
  .nav-item.open:hover > .nav-dropdown { display: block; }
  .nav-dropdown a { color: #cbd5df; padding: 9px 0; font-size: 15px; }
  .nav-dropdown a:hover { background: transparent; }
  .nav-dropdown-all { border-top-color: var(--line-dark); }
  .nav-subitem { flex-wrap: wrap; }
  .nav-subitem > .nav-caret { margin-right: 0; }
  .nav-subitem > .nav-caret svg { transform: none; }
  .brand img { width: 176px; }
  .nav-toggle { display: flex; z-index: 96; }
  .nav-toggle[aria-expanded="true"] span { background: #fff; }
  .header-actions .btn { display: none; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2) { border-right: 0; }
  .stat { border-bottom: 1px solid rgba(255, 255, 255, 0.22); }
  .stat:nth-child(3), .stat:nth-child(4) { border-bottom: 0; }
  .grid-3, .grid-4, .branch-grid, .process-grid, .value-grid { grid-template-columns: 1fr; }
  .industry-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .form-row { grid-template-columns: 1fr; }
  .hero-slider { height: 760px; }
  .hero .hero-ctas { margin-bottom: 0; }
  .hero .hero-trust { display: none; }
  .hero-product-overlay { display: none; }
  .concept-video-summary { margin-top: 58px; }
  .concept-principle { grid-template-columns: 42px 1fr; margin: 44px 0 36px; }
  .concept-principle p { font-size: 15px; }
  .concept-stage { top: 78px; height: 40vh; min-height: 280px; }
  .concept-chapter { min-height: 56vh; padding: 44px 8px 56px; border-left: 0; border-bottom: 1px solid rgba(255, 255, 255, 0.1); }
  .concept-chapter.active { border-bottom-color: var(--orange); }
  .concept-chapter h3 { font-size: 26px; }
  .concept-chapter p { font-size: 15px; }
  .concept-system { grid-template-columns: 1fr; gap: 18px; }
  .concept-system .btn { grid-column: auto; justify-self: stretch; justify-content: center; margin-top: 8px; }
  .catalog-band { padding: 36px 28px; }
  .quote-form { padding: 28px 22px; }
}