/* ============================================================
   HAESIN METAL — Design tokens
   ============================================================ */
:root {
  /* color */
  --ink: #0a0e15;
  --navy: #0f2038;
  --navy-2: #142a4a;
  --brand-blue: #1c4faf;
  --brand-blue-light: #3d72d6;
  --brand-red: #d5262c;
  --steel-100: #f3f4f2;
  --steel-200: #e9ebe8;
  --steel-400: #b9bfc4;
  --steel-600: #6b737b;
  --line-onDark: rgba(255, 255, 255, 0.14);
  --line-onLight: rgba(10, 14, 21, 0.12);
  --text-ink: #12161d;
  --text-ink-soft: #4a525b;
  --white: #ffffff;

  /* type */
  --f-display: "Oswald", "Pretendard Variable", sans-serif;
  --f-body: "Pretendard Variable", "Pretendard", -apple-system, BlinkMacSystemFont, sans-serif;
  --f-mono: "IBM Plex Mono", ui-monospace, monospace;

  /* layout */
  --container: 1200px;
  --chamfer-cut: 22px;
  --chamfer-cut-sm: 14px;
  --section-pad: clamp(72px, 9vw, 128px);
}

/* ============================================================
   Reset
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}
body {
  margin: 0;
  font-family: var(--f-body);
  color: var(--text-ink);
  background: var(--steel-100);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, p { margin: 0; word-break: keep-all; overflow-wrap: break-word; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
iframe { border: 0; }
[hidden] { display: none !important; }

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 999;
  background: var(--brand-blue); color: #fff; padding: 12px 18px; font-weight: 600;
}
.skip-link:focus { left: 12px; top: 12px; }

:focus-visible {
  outline: 2px solid var(--brand-blue-light);
  outline-offset: 3px;
}

.grain-overlay {
  position: fixed; inset: 0; pointer-events: none; z-index: 999; opacity: 0.035; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='90' height='90'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ============================================================
   Utility: chamfered (faceted-steel) corners
   ============================================================ */
.chamfer {
  clip-path: polygon(
    var(--chamfer-cut) 0, 100% 0,
    100% calc(100% - var(--chamfer-cut)), calc(100% - var(--chamfer-cut)) 100%,
    0 100%, 0 var(--chamfer-cut)
  );
}

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

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--f-mono);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--brand-blue);
  margin: 0 0 16px;
}
.eyebrow::before {
  content: "";
  width: 22px; height: 1px;
  background: var(--brand-red);
}
.eyebrow-onDark { color: #a9c3ef; }
.eyebrow-onDark::before { background: var(--brand-red); }

.section-title {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: clamp(28px, 3.6vw, 42px);
  line-height: 1.22;
  color: var(--text-ink);
  letter-spacing: -0.01em;
  margin-bottom: 18px;
}
.section-title.onDark { color: #fff; }
.section-title:last-child { margin-bottom: 0; }

.body-text { font-size: 16.5px; line-height: 1.75; color: var(--text-ink-soft); max-width: 54ch; }
.body-text-sm { font-size: 14.5px; line-height: 1.7; color: var(--text-ink-soft); }
.onDark-muted { color: rgba(255,255,255,0.72); }

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 15px 28px;
  font-family: var(--f-body);
  font-weight: 600;
  font-size: 14.5px;
  letter-spacing: 0.01em;
  clip-path: polygon(var(--chamfer-cut-sm) 0, 100% 0, 100% calc(100% - var(--chamfer-cut-sm)), calc(100% - var(--chamfer-cut-sm)) 100%, 0 100%, 0 var(--chamfer-cut-sm));
  transition: transform 0.25s ease, background 0.25s ease, color 0.25s ease, border-color .25s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--brand-blue); color: #fff; }
.btn-primary:hover { background: var(--brand-blue-light); }
.btn-outline { border: 1px solid rgba(255,255,255,0.55); color: #fff; }
.btn-outline:hover { border-color: #fff; background: rgba(255,255,255,0.08); }
.btn-ghost { border: 1px solid var(--line-onLight); font-family: var(--f-mono); font-size: 13px; padding: 9px 16px; }

/* ============================================================
   Header
   ============================================================ */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 500;
  background: transparent;
  transition: background 0.35s ease, box-shadow 0.35s ease, border-color .35s ease;
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  background: rgba(10, 14, 21, 0.88);
  backdrop-filter: blur(10px);
  border-bottom-color: var(--line-onDark);
}
.header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 32px;
  transition: padding 0.35s ease;
}
.site-header.is-scrolled .header-inner { padding: 11px 24px; }
.brand { display: flex; align-items: center; gap: 12px; margin-right: auto; }
.brand-mark { width: 34px; height: 34px; object-fit: contain; transition: transform 0.35s ease; }
.site-header.is-scrolled .brand-mark { transform: scale(0.88); }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-family: var(--f-display); font-size: 17px; font-weight: 600; color: #fff; letter-spacing: 0.02em; }
.brand-sub { font-family: var(--f-mono); font-size: 10px; color: var(--steel-400); letter-spacing: 0.08em; }

.main-nav ul { display: flex; gap: 30px; }
.main-nav a {
  font-size: 14px; font-weight: 500; color: rgba(255,255,255,0.82);
  position: relative; padding: 6px 0;
  transition: color .25s ease;
}
.main-nav a::after {
  content: ""; position: absolute; left: 0; right: 100%; bottom: 0; height: 1px;
  background: var(--brand-red); transition: right .25s ease;
}
.main-nav a:hover { color: #fff; }
.main-nav a:hover::after { right: 0; }

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

.lang-toggle {
  display: flex; align-items: center; gap: 5px;
  font-family: var(--f-mono); font-size: 12px; letter-spacing: 0.06em;
  color: rgba(255,255,255,0.6);
  border: 1px solid var(--line-onDark);
  padding: 7px 12px;
}
.lang-toggle .lang-opt { transition: color .2s ease; }
.lang-toggle .lang-opt.is-active { color: #fff; font-weight: 600; }
.lang-sep { opacity: 0.4; }

.header-tel { display: none; }
@media (min-width: 900px) {
  .header-tel { display: inline-flex; color: rgba(255,255,255,0.85); border-color: var(--line-onDark); }
  .header-tel:hover { border-color: #fff; color: #fff; }
}

.nav-toggle { display: none; flex-direction: column; gap: 5px; width: 30px; padding: 4px; }
.nav-toggle span { display: block; width: 100%; height: 2px; background: #fff; transition: transform .3s ease, opacity .3s ease; }

@media (max-width: 880px) {
  .main-nav {
    position: fixed; inset: 0 0 0 auto; width: min(320px, 82vw); height: 100vh;
    background: var(--ink); padding: 100px 32px 40px;
    transform: translateX(100%); transition: transform .35s ease;
    border-left: 1px solid var(--line-onDark);
  }
  .main-nav.is-open { transform: translateX(0); }
  .main-nav ul { flex-direction: column; gap: 4px; }
  .main-nav a { display: block; padding: 14px 0; font-size: 17px; border-bottom: 1px solid var(--line-onDark); }
  .nav-toggle { display: flex; }
  .nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.is-open span:nth-child(2) { opacity: 0; }
  .nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex; flex-direction: column; align-items: flex-start; justify-content: center;
  overflow: hidden;
  background: var(--ink);
}
.hero-media {
  position: absolute; inset: 0;
  background: linear-gradient(160deg, #0a0e15 0%, #0f2038 55%, #142a4a 100%);
}
.hero-canvas { width: 100%; height: 100%; display: block; }
.hero-media.no-webgl .hero-canvas { display: none; }
.hero-scrim {
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(6,9,15,0.55) 0%, rgba(6,9,15,0.62) 45%, rgba(6,9,15,0.92) 100%),
    linear-gradient(90deg, rgba(6,9,15,0.75) 0%, rgba(6,9,15,0.25) 55%);
}
.hero-content {
  position: relative; z-index: 2;
  max-width: var(--container);
  width: 100%;
  margin: 0 auto;
  padding: 160px 24px 120px;
}
.hero-title {
  font-family: var(--f-display);
  font-weight: 600;
  color: #fff;
  font-size: clamp(34px, 6vw, 68px);
  line-height: 1.16;
  letter-spacing: -0.01em;
  margin-bottom: 26px;
  max-width: 18ch;
}
.hero-title .ko { font-family: var(--f-body); font-weight: 800; }
.hero-desc { font-size: clamp(15px, 1.6vw, 18px); line-height: 1.7; color: rgba(255,255,255,0.82); max-width: 46ch; margin-bottom: 40px; }
.hero-desc .lb { display: block; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.scroll-cue {
  position: absolute; left: 24px; bottom: 32px; z-index: 2;
  display: flex; align-items: center; gap: 12px;
  font-family: var(--f-mono); font-size: 11px; letter-spacing: 0.2em; color: rgba(255,255,255,0.65);
}
.scroll-cue i {
  display: block; width: 1px; height: 34px; background: rgba(255,255,255,0.4); position: relative; overflow: hidden;
}
.scroll-cue i::after {
  content: ""; position: absolute; left: 0; top: -100%; width: 100%; height: 100%; background: var(--brand-red);
  animation: scrollcue 2.2s ease-in-out infinite;
}
@keyframes scrollcue { 0% { top: -100%; } 60% { top: 100%; } 100% { top: 100%; } }

/* ============================================================
   Industry marquee
   ============================================================ */
.marquee-section { background: var(--ink); border-bottom: 1px solid var(--line-onDark); }
.marquee-wrap { display: flex; align-items: center; flex-direction: column; gap: 4px; padding: 26px 24px; }
@media (min-width: 780px) {
  .marquee-wrap { flex-direction: row; padding: 0; }
}
.marquee-label { flex: 0 0 auto; padding: 0 0 14px; }
@media (min-width: 780px) {
  .marquee-label { padding: 0 28px 0 0; margin-right: 28px; border-right: 1px solid var(--line-onDark); }
}
.marquee-label p {
  font-family: var(--f-mono); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--steel-400); white-space: nowrap;
}
.marquee-viewport { position: relative; width: 100%; overflow: hidden; padding: 22px 0; }
.marquee-track {
  display: flex; align-items: center; gap: 0;
  width: max-content;
  animation: marquee-scroll 26s linear infinite;
}
.marquee-viewport:hover .marquee-track { animation-play-state: paused; }
.marquee-item {
  font-family: var(--f-mono); font-size: 14px; letter-spacing: 0.04em;
  color: rgba(255,255,255,0.55);
  padding: 0 30px;
  position: relative;
  white-space: nowrap;
}
.marquee-item::after {
  content: ""; position: absolute; right: 0; top: 50%; transform: translateY(-50%);
  width: 4px; height: 4px; background: var(--brand-red); border-radius: 50%;
}
@keyframes marquee-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
.marquee-fade { position: absolute; top: 0; bottom: 0; width: 90px; pointer-events: none; z-index: 2; }
.marquee-fade-left { left: 0; background: linear-gradient(90deg, var(--ink) 0%, transparent 100%); }
.marquee-fade-right { right: 0; background: linear-gradient(270deg, var(--ink) 0%, transparent 100%); }
@media (max-width: 620px) {
  .marquee-fade { width: 40px; }
  .marquee-item { padding: 0 18px; font-size: 12.5px; }
}

/* ============================================================
   Reveal-on-scroll
   ============================================================ */
.reveal {
  opacity: 0; transform: translateY(26px);
  transition: opacity .8s cubic-bezier(.16,1,.3,1), transform .8s cubic-bezier(.16,1,.3,1);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.hero .reveal { transition-delay: calc(var(--d, 0) * 90ms); }
.hero .eyebrow.reveal { --d: 0; }
.hero .hero-title.reveal { --d: 1; }
.hero .hero-desc.reveal { --d: 2; }
.hero .hero-actions.reveal { --d: 3; }

/* Cascading stagger for grid items — read as one composed moment, not a pop */
.biz-grid .biz-card:nth-child(1) { transition-delay: 0ms; }
.biz-grid .biz-card:nth-child(2) { transition-delay: 110ms; }
.biz-grid .biz-card:nth-child(3) { transition-delay: 220ms; }
.product-grid .product-card:nth-child(1) { transition-delay: 0ms; }
.product-grid .product-card:nth-child(2) { transition-delay: 110ms; }
.product-grid .product-card:nth-child(3) { transition-delay: 220ms; }
.timeline .timeline-item:nth-child(1) { transition-delay: 0ms; }
.timeline .timeline-item:nth-child(2) { transition-delay: 90ms; }
.timeline .timeline-item:nth-child(3) { transition-delay: 180ms; }
.timeline .timeline-item:nth-child(4) { transition-delay: 270ms; }
.industries-panel:nth-child(2) { transition-delay: 140ms; }

/* Slow ambient zoom for atmospheric full-bleed photography — never on small product thumbnails */
@keyframes kb-zoom { from { transform: scale(1); } to { transform: scale(1.07); } }
.kb-zoom { animation: kb-zoom 26s cubic-bezier(.25,.1,.25,1) forwards; }

/* ============================================================
   Section rhythm
   ============================================================ */
.section { padding: var(--section-pad) 0; }
.section-head { max-width: 62ch; margin-bottom: 56px; }

/* ---- About ---- */
.about { background: var(--steel-100); }
.about-grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 72px; align-items: center; }
.about-frame { overflow: hidden; aspect-ratio: 4/5; }
.about-frame img, .about-frame video { width: 100%; height: 100%; object-fit: cover; }
.about-media-caption { font-family: var(--f-mono); font-size: 13px; font-weight: 500; color: var(--text-ink); margin-top: 16px; letter-spacing: 0.02em; }

.plate {
  position: relative;
  margin-top: 32px;
  background: linear-gradient(155deg, #1b2532 0%, #10161f 60%, #1b2532 100%);
  border: 1px solid rgba(255,255,255,0.08);
  padding: 26px 28px;
  clip-path: polygon(16px 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%, 0 16px);
}
.plate-row {
  display: grid; grid-template-columns: 128px 1fr; gap: 16px;
  padding: 12px 0;
  border-bottom: 1px dashed rgba(255,255,255,0.1);
}
.plate-row:last-of-type { border-bottom: none; }
.plate-key { font-family: var(--f-mono); font-size: 11.5px; letter-spacing: 0.08em; text-transform: uppercase; color: #7f93b5; }
.plate-val { font-size: 14.5px; color: #eef1f6; line-height: 1.55; }
.plate-val a { border-bottom: 1px solid rgba(255,255,255,0.3); }
.plate-val a:hover { border-color: #fff; }
.plate-rivet {
  position: absolute; width: 7px; height: 7px; border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #8b96a6, #384354 70%);
  box-shadow: 0 1px 2px rgba(0,0,0,0.6);
}
.plate-rivet.tl { top: 9px; left: 9px; }
.plate-rivet.tr { top: 9px; right: 9px; }
.plate-rivet.bl { bottom: 9px; left: 9px; }
.plate-rivet.br { bottom: 9px; right: 9px; }

/* ---- Business ---- */
.business { background: var(--navy); background-image: radial-gradient(circle at 85% 0%, var(--navy-2), var(--navy) 55%); }
.biz-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.biz-card {
  position: relative;
  border: 1px solid var(--line-onDark);
  background: var(--navy-2);
  overflow: hidden;
  min-height: 480px;
  display: flex; flex-direction: column; justify-content: flex-end;
}
.biz-card-media {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  transition: filter .6s ease;
  transform-origin: center;
}
.biz-card::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(0deg, rgba(9,14,23,0.96) 18%, rgba(9,14,23,0.55) 55%, rgba(9,14,23,0.75) 100%);
}
.biz-card:hover .biz-card-media { filter: brightness(1.1) saturate(1.05); }
.biz-card-body { position: relative; z-index: 2; padding: 32px 28px 34px; }
.biz-tag {
  display: inline-block; font-family: var(--f-mono); font-size: 12px; font-weight: 600; letter-spacing: 0.08em;
  color: var(--ink); background: #fff; padding: 4px 10px; margin-bottom: 18px;
}
.biz-card:nth-child(2) .biz-tag { background: #d8dee6; }
.biz-card:nth-child(3) .biz-tag { background: var(--brand-red); color: #fff; }
.biz-card h3 { font-family: var(--f-display); font-size: 22px; font-weight: 600; color: #fff; line-height: 1.3; margin-bottom: 18px; }
.biz-card ul { display: flex; flex-direction: column; gap: 11px; }
.biz-card li { font-size: 13.5px; line-height: 1.6; color: rgba(255,255,255,0.78); padding-left: 15px; position: relative; }
.biz-card li::before { content: ""; position: absolute; left: 0; top: 9px; width: 5px; height: 1px; background: var(--brand-red); }

/* ---- Products ---- */
.products { background: var(--steel-100); }
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; margin-bottom: 64px; }
.product-card { background: #fff; border: 1px solid var(--line-onLight); overflow: hidden; }
.product-media { aspect-ratio: 4/3; overflow: hidden; }
.product-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.product-card:hover .product-media img { transform: scale(1.06); }
.product-body { padding: 28px 26px 30px; }
.product-body h3 { font-family: var(--f-display); font-size: 19px; font-weight: 600; line-height: 1.3; margin-bottom: 12px; }
.spec-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.spec-tags span {
  font-family: var(--f-mono); font-size: 11px; letter-spacing: 0.04em; color: var(--brand-blue);
  border: 1px solid rgba(28,79,175,0.28); padding: 4px 9px;
}

.process-feature {
  display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: center;
  background: var(--ink); padding: 8px;
}
.process-feature-media { aspect-ratio: 16/10; overflow: hidden; }
.feature-video { width: 100%; height: 100%; object-fit: cover; }
.process-feature-copy { padding: 20px 44px 20px 8px; }
.process-feature-copy h3 { font-family: var(--f-display); font-weight: 600; color: #fff; font-size: clamp(20px, 2.4vw, 26px); margin: 14px 0 16px; line-height: 1.35; }
.process-feature-copy .body-text-sm { color: rgba(255,255,255,0.68); max-width: 42ch; }

/* ---- Process timeline ---- */
.process-section { background: var(--navy); }
.timeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; position: relative; }
.timeline::before {
  content: ""; position: absolute; top: 122px; left: 4%; right: 4%; height: 1px;
  background: repeating-linear-gradient(90deg, rgba(255,255,255,0.22) 0 8px, transparent 8px 16px);
}
.timeline-item { position: relative; }
.timeline-num {
  font-family: var(--f-mono); font-size: 13px; font-weight: 600; color: var(--ink);
  background: var(--brand-red);
  width: 34px; height: 34px; display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px; position: relative; z-index: 2;
  clip-path: polygon(6px 0, 100% 0, 100% calc(100% - 6px), calc(100% - 6px) 100%, 0 100%, 0 6px);
  color: #fff;
}
.timeline-media { aspect-ratio: 4/3; overflow: hidden; margin-bottom: 18px; border: 1px solid var(--line-onDark); }
.timeline-media img, .timeline-media video { width: 100%; height: 100%; object-fit: cover; }
.timeline-copy h3 { font-family: var(--f-display); font-size: 16.5px; font-weight: 600; color: #fff; line-height: 1.3; margin-bottom: 10px; }
.timeline-copy p { font-size: 13px; line-height: 1.65; color: rgba(255,255,255,0.68); }

/* ---- Industries ---- */
.industries { display: grid; grid-template-columns: 1fr 1fr; background: var(--ink); }
.industries-panel { position: relative; min-height: 340px; overflow: hidden; }
.industries-panel-img {
  position: absolute; inset: 0; background-size: cover; background-position: center;
  filter: saturate(0.92) brightness(0.7);
  transition: filter .5s ease;
  transform-origin: center;
}
.industries-panel:hover .industries-panel-img { filter: saturate(1) brightness(0.8); }
.industries-panel::after { content:""; position:absolute; inset:0; background: linear-gradient(0deg, rgba(6,9,15,0.85) 10%, rgba(6,9,15,0.15) 60%); }
.industries-panel-copy { position: relative; z-index: 2; height: 100%; display: flex; flex-direction: column; justify-content: flex-end; padding: 34px 40px; }
.industries-tag { font-family: var(--f-mono); font-size: 11.5px; letter-spacing: 0.14em; color: var(--brand-red); margin-bottom: 10px; }
.industries-panel-copy h3 { font-family: var(--f-display); font-size: clamp(22px, 2.6vw, 30px); font-weight: 600; color: #fff; }
.industries-statement { grid-column: 1 / -1; padding: 56px 24px; max-width: var(--container); margin: 0 auto; width: 100%; }
.industries-statement .body-text { max-width: 68ch; }

/* ---- Sustainability strip ---- */
.sustain { background: var(--ink); padding: 64px 0; border-top: 1px solid var(--line-onDark); border-bottom: 1px solid var(--line-onDark); }
.sustain-inner { display: flex; flex-direction: column; gap: 14px; max-width: 900px; }
.sustain-text { color: rgba(255,255,255,0.78); font-size: 16px; line-height: 1.75; }

/* ---- Contact ---- */
.contact { background: var(--steel-100); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: stretch; }
.contact-cta { margin-top: 30px; }
.contact-map { position: relative; overflow: hidden; min-height: 420px; border: 1px solid var(--line-onLight); }
.contact-map iframe { width: 100%; height: 100%; min-height: 420px; filter: grayscale(0.15) contrast(1.02); }

.map-cover {
  position: absolute; top: 0; left: 0;
  width: 260px; height: 140px;
  background: #fff;
  z-index: 2; pointer-events: none;
}
.map-open-link {
  position: absolute; top: 12px; left: 12px; z-index: 4;
  display: flex; flex-direction: column; gap: 4px;
  max-width: 232px;
  background: var(--ink); color: #fff;
  padding: 13px 16px;
  font-family: var(--f-mono); font-size: 11px; line-height: 1.5;
  text-decoration: none;
  box-shadow: 0 10px 22px rgba(10,14,21,0.25);
  clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
  transition: background 0.2s ease;
}
.map-open-link strong { font-size: 12.5px; font-weight: 600; color: #fff; font-family: var(--f-body); }
.map-open-link .ko, .map-open-link .en { color: rgba(255,255,255,0.75); }
.map-open-link:hover { background: var(--brand-blue); }
.map-open-link:hover .ko, .map-open-link:hover .en { color: rgba(255,255,255,0.9); }

.map-marker {
  position: absolute; top: 46%; left: 50%;
  transform: translate(-50%, -50%);
  z-index: 3; pointer-events: none;
  display: flex; align-items: center; gap: 7px;
  background: var(--ink); color: #fff;
  padding: 8px 14px 8px 10px;
  font-family: var(--f-mono); font-size: 11.5px; font-weight: 600; letter-spacing: 0.01em;
  white-space: nowrap;
  clip-path: polygon(7px 0, 100% 0, 100% calc(100% - 7px), calc(100% - 7px) 100%, 0 100%, 0 7px);
  box-shadow: 0 6px 16px rgba(10,14,21,0.35);
}
.map-marker-dot {
  width: 9px; height: 9px; border-radius: 50%; flex-shrink: 0;
  background: var(--brand-red);
  border: 2px solid #fff;
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer { background: var(--ink); color: rgba(255,255,255,0.6); padding: 44px 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.footer-brand { display: flex; align-items: center; gap: 14px; }
.footer-mark { width: 26px; height: 26px; object-fit: contain; opacity: 0.85; }
.footer-brand strong { color: #fff; font-size: 14.5px; display: block; margin-bottom: 4px; }
.footer-brand p { font-size: 12.5px; line-height: 1.6; color: rgba(255,255,255,0.55); }
.footer-copy { font-family: var(--f-mono); font-size: 11.5px; letter-spacing: 0.03em; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1020px) {
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-frame { aspect-ratio: 16/9; }
  .about-frame img, .about-frame video { object-position: center 30% !important; }
  .biz-grid { grid-template-columns: 1fr; }
  .biz-card { min-height: 360px; }
  .product-grid { grid-template-columns: 1fr 1fr; }
  .process-feature { grid-template-columns: 1fr; }
  .process-feature-copy { padding: 4px 8px 28px; }
  .timeline { grid-template-columns: 1fr 1fr; row-gap: 40px; }
  .timeline::before { display: none; }
  .industries { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .contact-map { min-height: 320px; }
}

@media (max-width: 620px) {
  .header-inner { padding: 14px 18px; }
  .brand-sub { display: none; }
  .hero-content { padding: 140px 18px 100px; }
  .section-inner { padding: 0 18px; }
  .product-grid { grid-template-columns: 1fr; }
  .timeline { grid-template-columns: 1fr; }
  .plate-row { grid-template-columns: 1fr; gap: 4px; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .hero-actions .btn { width: 100%; }
}