/* APEX — PT. APEX TELCOM INKO
   Palette: deep navy · slate · cyan
   Type: Pretendard (body) · Outfit (display)
   Layout: mobile-first Flexbox / Grid */

:root {
  --navy: #0b2740;
  --navy-2: #123a5c;
  --navy-3: #1a4d73;
  --ink: #1a2332;
  --slate: #5c6778;
  --slate-2: #8a94a3;
  --muted: #5c6778;
  --line: #e2e6ec;
  --paper: #f4f6f8;
  --white: #ffffff;
  --gold: #2f9ed8;
  --gold-2: #5eb8e6;
  --gold-soft: #e7f5fc;
  --gold-ink: #1a73a6;   /* 밝은 배경 위 텍스트용 (AA 4.5:1+) */
  --copper: #b87333;
  --aluminum: #8a97a4;
  --tin: #6f8078;
  --nickel: #627078;
  --wood: #8a5a32;
  --kaolin: #b8a78a;
  --eboard: #35608f;
  --ops: #4a7089;
  --laptop: #5f7d8c;
  --tablet: #7a8fa0;
  --dross: #7a8680;
  --drone: #3f6f62;
  --header: 72px;
  --header-compact: 60px;
  --radius: 18px;
  --shadow: 0 18px 48px rgba(11, 39, 64, 0.1);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header) + 12px);
}

body {
  font-family: Pretendard, "Noto Sans KR", system-ui, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

body.is-menu-open { overflow: hidden; }

img { max-width: 100%; display: block; }
picture { display: contents; }
a { color: inherit; text-decoration: none; }
address { font-style: normal; }
button, input, select, textarea { font: inherit; color: inherit; }
ul, ol { list-style: none; }

::selection {
  background: var(--navy);
  color: #f4efe6;
}

:focus { outline: none; }
:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -48px;
  z-index: 100;
  background: var(--white);
  color: var(--ink);
  padding: 8px 14px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 14px;
}
.skip-link:focus { top: 12px; }

.container {
  width: min(1180px, calc(100% - 32px));
  margin-inline: auto;
}

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  height: var(--header);
  display: flex;
  align-items: center;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background 0.28s var(--ease), border-color 0.28s, box-shadow 0.28s, height 0.28s var(--ease);
}
.site-header.is-scrolled,
.site-header.is-open {
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(16px);
  border-bottom-color: var(--line);
  box-shadow: 0 8px 24px rgba(15, 28, 50, 0.06);
}
.site-header.is-scrolled::before,
.site-header.is-open::before {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), var(--navy));
}
.site-header.is-compact { height: var(--header-compact); }

.header-inner {
  display: flex;
  align-items: center;
  gap: 16px;
  width: 100%;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.brand img { width: 40px; height: 40px; }
.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
  min-width: 0;
}
.brand-text strong,
.brand-text small {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.brand-text strong {
  font-family: Outfit, Georgia, serif;
  font-size: 21px;
  letter-spacing: 0.04em;
  color: #f4efe6;
  transition: color 0.2s;
}
.brand-text small {
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(244, 239, 230, 0.7);
  transition: color 0.2s;
}
.site-header.is-scrolled .brand-text strong,
.site-header.is-open .brand-text strong { color: var(--ink); }
.site-header.is-scrolled .brand-text small,
.site-header.is-open .brand-text small { color: var(--slate); }

.nav {
  position: fixed;
  top: var(--header);
  left: 0;
  right: 0;
  z-index: 48;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 18px 20px 28px;
  background: var(--white);
  border-bottom: 1px solid var(--line);
  transform: translateY(-8px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.28s var(--ease), transform 0.28s var(--ease), visibility 0.28s;
}
.nav.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: none;
}
.nav a {
  position: relative;
  padding: 12px 8px;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
}
.nav a.is-current { color: var(--navy); }

.nav-overlay {
  position: fixed;
  inset: 0;
  z-index: 40;
  background: rgba(15, 28, 50, 0.46);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.28s, visibility 0.28s;
}
.nav-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  flex-shrink: 0;
}

.lang-switch {
  display: inline-flex;
  align-items: stretch;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px;
  overflow: hidden;
}
.lang-toggle {
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: #fff;
  cursor: pointer;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  transition: background 0.2s, color 0.2s;
}
.lang-toggle + .lang-toggle {
  border-left: 1px solid rgba(255, 255, 255, 0.18);
}
.lang-toggle.is-active {
  background: rgba(255, 255, 255, 0.2);
}
.site-header.is-scrolled .lang-switch,
.site-header.is-open .lang-switch {
  border-color: var(--line);
  background: var(--white);
}
.site-header.is-scrolled .lang-toggle,
.site-header.is-open .lang-toggle {
  color: var(--ink);
}
.site-header.is-scrolled .lang-toggle + .lang-toggle,
.site-header.is-open .lang-toggle + .lang-toggle {
  border-left-color: var(--line);
}
.site-header.is-scrolled .lang-toggle.is-active,
.site-header.is-open .lang-toggle.is-active {
  background: var(--gold-soft);
  color: var(--navy);
}

.header-actions .header-cta { display: none; }

.menu-btn {
  position: relative;
  width: 42px;
  height: 38px;
  border: 0;
  background: transparent;
  cursor: pointer;
}
.menu-btn span {
  position: absolute;
  left: 11px;
  right: 11px;
  height: 1.5px;
  background: #f4efe6;
  border-radius: 2px;
  transition: transform 0.28s var(--ease), opacity 0.2s, background 0.2s, top 0.28s var(--ease);
}
.menu-btn span:nth-child(1) { top: 12px; }
.menu-btn span:nth-child(2) { top: 18px; }
.menu-btn span:nth-child(3) { top: 24px; }
.menu-btn.is-open span:nth-child(1) { top: 18px; transform: rotate(45deg); }
.menu-btn.is-open span:nth-child(2) { opacity: 0; }
.menu-btn.is-open span:nth-child(3) { top: 18px; transform: rotate(-45deg); }
.site-header.is-scrolled .menu-btn span,
.site-header.is-open .menu-btn span { background: var(--navy); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s, background 0.2s, color 0.2s, border-color 0.2s;
}
.btn:hover { transform: translateY(-1px); }
.btn-sm { height: 38px; padding: 0 16px; font-size: 14px; }
.btn-primary { background: var(--gold); color: var(--navy); }
.btn-primary:hover { background: var(--gold-2); }
.btn-ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.35);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.08); }
.btn-block { width: 100%; }

.text-link {
  margin-top: 18px;
  background: none;
  border: 0;
  padding: 0;
  color: var(--gold-ink);
  font-weight: 700;
  cursor: pointer;
  letter-spacing: 0.02em;
}
.text-link:hover { text-decoration: underline; color: #9a7a42; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  background: var(--navy);
  color: #f4efe6;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
}
.hero-media {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 42%;
}
.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(15, 28, 50, 0.9) 0%, rgba(15, 28, 50, 0.62) 48%, rgba(15, 28, 50, 0.28) 100%),
    linear-gradient(180deg, rgba(15, 28, 50, 0.32) 0%, transparent 38%, rgba(15, 28, 50, 0.82) 100%);
}
.hero-inner {
  position: relative;
  padding: 128px 0 56px;
}

.eyebrow {
  color: var(--gold-ink);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.hero h1 {
  font-family: Outfit, Pretendard, serif;
  font-size: clamp(32px, 7.2vw, 60px);
  line-height: 1.12;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.hero h1 em {
  font-style: italic;
  color: var(--gold-2);
}
.hero-cta { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 28px; }

.hero-stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  max-width: 560px;
}
.hero-stats strong {
  display: block;
  font-family: Outfit, serif;
  font-size: 28px;
  line-height: 1;
  margin-bottom: 6px;
}
.hero-stats span { font-size: 13px; color: #cfc8bb; }

/* ---------- Materials mosaic ---------- */
.materials {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-auto-rows: 200px;
  background: var(--navy);
}
.material {
  position: relative;
  overflow: hidden;
  color: #fff;
}
.material img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.04);
  transition: transform 0.7s var(--ease);
}
.material::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15, 28, 50, 0.08) 20%, rgba(15, 28, 50, 0.8) 100%);
}
.material span {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 14px;
  z-index: 1;
}
.material small {
  display: block;
  font-family: Outfit, serif;
  color: var(--gold-2);
  font-size: 13px;
}
.material strong {
  display: block;
  font-size: 15px;
  font-weight: 700;
}
.material em {
  display: block;
  font-style: normal;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.72);
}
.material:hover img { transform: scale(1.1); }
.material-wide,
.material-break { grid-column: 1 / -1; }
.material.is-electronic small { color: #9dc0e6; }

/* ---------- Strip ---------- */
.strip {
  background: var(--white);
  border-bottom: 1px solid var(--line);
}
.strip-grid {
  display: grid;
  grid-template-columns: 1fr;
}
.strip article {
  padding: 28px 4px;
  border-bottom: 1px solid var(--line);
}
.strip article:last-child { border-bottom: 0; }
.strip span {
  display: block;
  font-family: Outfit, serif;
  color: var(--gold-ink);
  font-size: 22px;
  margin-bottom: 8px;
}
.strip h3 { font-size: 18px; margin-bottom: 4px; }
.strip p { color: var(--muted); font-size: 14px; }

/* ---------- Sections ---------- */
.section { padding: 72px 0; }
.products { background: var(--white); }
.section-head { margin-bottom: 36px; max-width: 640px; }
.section-head h2,
.about h2,
.contact h2 {
  font-family: Outfit, Pretendard, serif;
  font-size: clamp(30px, 7vw, 48px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--navy);
}
.section-head.light h2 { color: #f4efe6; }
.section-lead { margin-top: 12px; color: var(--muted); font-size: 16px; }

.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}
.about-copy p + p { margin-top: 16px; color: var(--muted); }
.about-photo {
  margin-top: 28px;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.about-photo img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}
.about-photo figcaption {
  padding: 12px 16px 14px;
  background: var(--white);
  color: var(--muted);
  font-size: 13px;
}

.facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}
.facts dt {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 6px;
}
.facts dd { font-weight: 650; }

.about-profile {
  margin-top: 48px;
  scroll-margin-top: calc(var(--header) + 16px);
}

.org-wrap {
  margin-top: 48px;
  scroll-margin-top: calc(var(--header) + 16px);
}
.org-board {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px 16px 24px;
}
.org-board-embed {
  box-shadow: none;
  padding: 20px 12px 12px;
  background: var(--paper);
}
.org-row { display: flex; justify-content: center; }
.org-stem {
  display: block;
  width: 1px;
  height: 20px;
  margin: 0 auto;
  background: var(--gold);
}
.org-card {
  min-width: min(220px, 100%);
  max-width: 280px;
  text-align: center;
  padding: 14px 16px 16px;
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 4px solid var(--accent, var(--gold));
  border-radius: 14px;
}
.org-root {
  --accent: var(--navy);
  background: var(--navy);
  border-color: var(--navy);
  color: #f4efe6;
}
.org-card.org-root small { color: var(--gold-2); }
.org-card.org-root span { color: #cfc8bb; }
.org-lead { --accent: var(--gold); }
.org-card small {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold-ink);
  margin-bottom: 4px;
}
.org-card strong {
  display: block;
  color: var(--navy);
  font-size: 18px;
  line-height: 1.3;
}
.org-root strong { color: #f4efe6; font-family: Outfit, Pretendard, serif; font-size: 24px; }
.org-card span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
}
.org-branches {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
.org-branch {
  display: grid;
  gap: 10px;
  justify-items: center;
}
.org-branch .org-card { width: 100%; max-width: none; }
.org-leaves {
  width: 100%;
  display: grid;
  gap: 6px;
}
.org-leaves li {
  padding: 10px 12px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 600;
  text-align: center;
}
.org-board-embed .org-leaves li { background: var(--white); }
.org-equal {
  margin: 0 0 12px;
  text-align: center;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.org-partners {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  justify-items: center;
  max-width: 640px;
  margin: 0 auto;
}
.org-partners .org-card { width: 100%; max-width: none; }
.org-card em {
  display: block;
  margin-top: 4px;
  font-style: normal;
  font-weight: 650;
  color: var(--navy);
  font-size: 14px;
}
.org-partner { --accent: var(--navy-3); }
.org-partner strong { font-family: Outfit, Pretendard, sans-serif; }
.about-profile .sheet-tabs { margin-bottom: 18px; }
.profile-sheet[hidden] { display: none; }
.profile-sheet { opacity: 1; transform: none; }
.profile-block { margin-top: 28px; }
.profile-block:first-child { margin-top: 0; }
.profile-kicker {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold-ink);
  margin-bottom: 6px;
}
.profile-block h4 {
  margin: 0 0 12px;
  color: var(--navy);
  font-size: 20px;
}
.profile-box {
  border-left: 4px solid var(--gold);
  background: var(--gold-soft);
  padding: 12px 16px;
  margin: 14px 0 18px;
  border-radius: 0 12px 12px 0;
  color: var(--ink);
  font-size: 14px;
}
.profile-list {
  margin: 8px 0 0;
  padding-left: 18px;
  list-style: disc;
  color: var(--ink);
}
.profile-list li + li { margin-top: 6px; }
.profile-contact td:first-child {
  width: 28%;
  background: var(--navy);
  color: #f4efe6;
  font-weight: 700;
}

.divisions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 28px;
}
.division {
  background: var(--white);
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent, var(--gold));
  border-radius: 16px;
  padding: 20px;
}
.division-en {
  font-family: Outfit, serif;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 4px;
}
.division h3 { font-size: 20px; margin-bottom: 6px; }
.division p { color: var(--muted); font-size: 14px; }
.division .text-link { display: inline-block; margin-top: 12px; font-size: 14px; }

.principles {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 28px;
}
.principles li {
  padding: 16px 18px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 14px;
}
.principles strong {
  display: block;
  margin-bottom: 4px;
  color: var(--navy);
  font-size: 15px;
}
.principles span {
  color: var(--muted);
  font-size: 14px;
}

/* ---------- Products ---------- */
.tabs,
.sheet-tabs {
  display: grid;
  gap: 6px;
  width: 100%;
  padding: 6px;
  margin-bottom: 28px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: 0 10px 26px rgba(15, 28, 50, 0.08);
}
.tabs { grid-template-columns: 1fr 1fr; }
.sheet-tabs { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.tab,
.sheet-tab {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
  min-width: 0;
  padding: 12px 8px;
  border: 0;
  border-radius: 16px;
  background: transparent;
  color: var(--muted);
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  text-align: center;
  line-height: 1.25;
}
.tab small,
.sheet-tab small {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.7;
}
.tab:hover,
.sheet-tab:hover { color: var(--ink); background: rgba(15, 28, 50, 0.05); }
.tab.is-active,
.sheet-tab.is-active { background: var(--navy); color: #f4efe6; }
.tab.is-active:hover,
.sheet-tab.is-active:hover { background: var(--navy-2); }

.tab-panel[hidden] { display: none; }
.tab-panel { scroll-margin-top: calc(var(--header) + 16px); }
.tab-panel:focus { outline: none; }
.panel-lead {
  max-width: 720px;
  margin: -4px 0 24px;
  color: var(--muted);
  font-size: 15px;
}
.showroom-hall {
  background: var(--navy);
  color: #f4efe6;
  border-radius: var(--radius);
  padding: 28px 24px;
  margin: -4px 0 24px;
  box-shadow: var(--shadow);
}
.showroom-hall-kicker {
  font-family: Outfit, Georgia, serif;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold-2);
  margin-bottom: 8px;
}
.showroom-hall h3 {
  font-size: 26px;
  margin-bottom: 8px;
  color: #f4efe6;
}
.showroom-hall p {
  max-width: 64ch;
  color: rgba(244, 239, 230, 0.82);
  font-size: 15px;
  line-height: 1.7;
}
.contact-docs {
  margin-top: 10px;
  font-weight: 700;
  color: var(--navy);
}

.product-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}
.product-wide { grid-column: 1 / -1; }
.product-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 4px solid var(--accent, var(--gold));
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  display: grid;
  scroll-margin-top: calc(var(--header) + 16px);
  transition: transform 0.2s, box-shadow 0.2s;
}
.product-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 22px 50px rgba(15, 28, 50, 0.14);
}
.product-visual {
  margin: 0;
  overflow: hidden;
  background: #eef1f4;
  min-height: 220px;
}
.product-visual img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  transition: transform 0.5s var(--ease);
}
.product-wide .product-visual img { height: 220px; min-height: 220px; }
.product-card:hover .product-visual img { transform: scale(1.05); }
.product-body { padding: 24px; }
.product-en {
  font-family: Outfit, serif;
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 6px;
}
.product-body h3 { font-size: 24px; margin-bottom: 10px; color: var(--navy); }
.product-body p { color: var(--muted); }
.product-body ul {
  margin-top: 16px;
  padding-left: 18px;
  list-style: disc;
  color: var(--ink);
}
.product-body li + li { margin-top: 4px; }

.product-showroom .product-visual {
  position: relative;
  min-height: 280px;
}
.product-showroom .product-visual img {
  height: 280px;
  min-height: 280px;
}
.showroom-overlay {
  position: absolute;
  inset: auto 0 0;
  z-index: 1;
  padding: 56px 16px 16px;
  background: linear-gradient(180deg, transparent 0%, rgba(15, 28, 50, 0.62) 30%, rgba(15, 28, 50, 0.9) 62%);
  color: #f4efe6;
  font-style: normal;
}
.showroom-kicker {
  font-family: Outfit, Georgia, serif;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #f4efe6;
  margin-bottom: 10px;
}
.spec-badges {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.spec-badges li {
  background: rgba(15, 28, 50, 0.48);
  border: 1px solid rgba(201, 171, 116, 0.38);
  border-radius: 12px;
  padding: 10px 12px;
  backdrop-filter: blur(10px);
}
.spec-badges strong {
  display: block;
  font-family: Outfit, Georgia, serif;
  font-size: 26px;
  font-weight: 700;
  line-height: 1.1;
  color: #f4efe6;
}
.spec-badges span {
  display: block;
  margin-top: 4px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: rgba(244, 239, 230, 0.78);
}

.spec-board {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 18px;
}
.spec-board > div {
  background: var(--paper);
  border-radius: 12px;
  padding: 12px 14px;
  border-left: 3px solid var(--accent, var(--gold));
}
.spec-board dt {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--slate);
  margin-bottom: 4px;
}
.spec-board dd {
  font-size: 14px;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.4;
}
.spec-note {
  margin-top: 12px;
  font-size: 13px;
  color: var(--slate);
}
.product-thumbs {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  padding: 10px 12px 0;
  background: var(--white);
}
.product-thumbs button {
  margin: 0;
  padding: 0;
  border: 2px solid transparent;
  border-radius: 10px;
  overflow: hidden;
  background: #eef1f4;
  cursor: pointer;
}
.product-thumbs button.is-active {
  border-color: var(--accent, var(--gold));
}
.product-thumbs img {
  display: block;
  width: 100%;
  height: 64px;
  object-fit: cover;
}
.product-thumbs button:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.product-resource {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}
.panel-docs {
  margin: 0 0 28px;
  padding-top: 0;
  border-top: 0;
  max-width: 680px;
}
.panel-docs .doc-btn svg { color: var(--copper); }
.resource-kicker {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate);
  margin-bottom: 10px;
}
.resource-docs {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}
.doc-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--paper);
  color: var(--navy);
  transition: border-color 0.2s, background 0.2s, transform 0.15s;
}
.doc-btn svg { flex-shrink: 0; color: var(--eboard); }
.doc-btn small {
  display: block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--gold-ink);
}
.doc-btn strong {
  display: block;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.35;
}
.doc-btn:hover {
  border-color: var(--gold);
  background: var(--gold-soft);
  transform: translateY(-1px);
}
.product-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 20px;
  margin-top: 16px;
}
.product-cta .text-link { margin-top: 0; }
.btn-sample {
  gap: 8px;
  padding-inline: 20px;
}

[data-tone="copper"] { --accent: var(--copper); }
[data-tone="aluminum"] { --accent: var(--aluminum); }
[data-tone="tin"] { --accent: var(--tin); }
[data-tone="nickel"] { --accent: var(--nickel); }
[data-tone="wood"] { --accent: var(--wood); }
[data-tone="kaolin"] { --accent: var(--kaolin); }
[data-tone="eboard"] { --accent: var(--eboard); }
[data-tone="ops"] { --accent: var(--ops); }
[data-tone="laptop"] { --accent: var(--laptop); }
[data-tone="tablet"] { --accent: var(--tablet); }
[data-tone="dross"] { --accent: var(--dross); }
[data-tone="drone"] { --accent: var(--drone); }

/* ---------- Resources briefing ---------- */
.briefing { background: var(--paper); }
.briefing-doc {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.briefing-cover {
  display: flex;
  flex-direction: column;
  gap: 20px;
  align-items: flex-start;
  padding: 28px 24px;
  background: var(--navy);
  color: #f4efe6;
}
.briefing-cover .btn { gap: 8px; }
.briefing-cover-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.briefing-tag {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold-2);
  margin-bottom: 8px;
}
.briefing-cover h3 {
  font-family: Outfit, Pretendard, serif;
  font-size: clamp(24px, 5vw, 34px);
  line-height: 1.25;
  letter-spacing: -0.02em;
}
.briefing-meta {
  margin-top: 10px;
  font-size: 13px;
  color: #cfc8bb;
}
.briefing-body { padding: 24px; }
.briefing-intro {
  max-width: 68ch;
  color: var(--muted);
  font-size: 16px;
}
.briefing-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 24px 0 8px;
  padding: 20px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.briefing-stats strong {
  display: block;
  font-family: Outfit, serif;
  font-size: 28px;
  line-height: 1;
  color: var(--navy);
  margin-bottom: 6px;
}
.briefing-stats span { font-size: 13px; color: var(--muted); }
.briefing-body h4 {
  margin: 28px 0 12px;
  color: var(--navy);
  font-size: 18px;
}
.briefing-market {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
.briefing-market article {
  padding: 18px 18px 16px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-left: 4px solid var(--gold);
  border-radius: 14px;
}
.briefing-market h5 {
  margin: 2px 0 8px;
  color: var(--navy);
  font-size: 17px;
}
.briefing-market p { color: var(--muted); font-size: 14px; }
.briefing-table-wrap { overflow-x: auto; }
.briefing-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.briefing-table th,
.briefing-table td {
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
.briefing-table th {
  background: var(--navy);
  color: #f4efe6;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.briefing-table td:first-child { font-weight: 700; color: var(--navy); white-space: nowrap; }
.briefing-table tbody tr:nth-child(even) { background: var(--paper); }
.briefing-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}
.briefing-steps li {
  padding: 16px 18px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 14px;
}
.briefing-steps strong {
  font-family: Outfit, serif;
  color: var(--gold-ink);
  font-size: 20px;
}
.briefing-steps h5 {
  margin: 6px 0 4px;
  color: var(--navy);
  font-size: 16px;
}
.briefing-steps p { color: var(--muted); font-size: 14px; }
.briefing-foot {
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
  max-width: 62ch;
}
.mfr-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
.mfr-card {
  padding: 18px 18px 16px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-left: 4px solid var(--gold);
  border-radius: 14px;
}
.mfr-card h5 {
  margin: 2px 0 8px;
  color: var(--navy);
  font-size: 17px;
}
.mfr-card p { color: var(--muted); font-size: 14px; }
.mfr-give { background: var(--gold-soft); }
.mfr-list { margin-top: 4px; }
.mfr-list li {
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}
.mfr-list li:last-child { border-bottom: 0; }
.mfr-next {
  margin: 24px 0 8px;
  padding: 16px 18px;
  background: var(--gold-soft);
  border: 1px solid var(--line);
  border-radius: 14px;
}
.mfr-next strong {
  display: block;
  color: var(--navy);
  margin-bottom: 6px;
}
.mfr-next p { color: var(--muted); font-size: 14px; }
.mfr-contacts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
.mfr-desk {
  padding: 16px 18px;
  background: var(--navy);
  color: #d7e6f0;
  border-radius: 14px;
}
.mfr-desk .product-en { color: var(--gold-2); }
.mfr-desk h5 {
  color: #fff;
  margin: 4px 0 8px;
  font-size: 18px;
}
.mfr-desk p { font-size: 14px; }
.mfr-desk a { color: #fff; }

/* ---------- Global network ---------- */
.network {
  background: var(--white);
  overflow: hidden;
}
.network-head {
  display: grid;
  gap: 8px;
  max-width: none;
}
.network-head .section-lead {
  max-width: 650px;
}
.network-map {
  position: relative;
  margin: 0;
  border-radius: 20px;
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.network-map-canvas {
  position: relative;
  background: #fff;
}
.network-map-canvas > img {
  width: 100%;
  height: auto;
  display: block;
}
.map-pins {
  position: absolute;
  inset: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  pointer-events: none;
}
.map-pin {
  position: absolute;
  left: var(--x);
  top: var(--y);
  transform: translate(-50%, -50%);
  z-index: var(--z, 3);
}
.map-pin-dot {
  display: block;
  width: 14px;
  height: 14px;
  border: 3px solid #fff;
  border-radius: 50%;
  box-shadow: 0 4px 12px rgba(15, 28, 50, 0.22);
  position: relative;
  z-index: 3;
}
.map-pin.is-origin .map-pin-dot {
  width: 12px;
  height: 12px;
  border-radius: 2px;
  transform: rotate(45deg);
}
.map-pin.is-resource .map-pin-dot { background: var(--gold); }
.map-pin.is-electronics .map-pin-dot { background: #4e8fc0; }
.map-pin.is-hub .map-pin-dot { background: var(--navy); }
.map-pin.is-korea .map-pin-dot { background: var(--slate); }
.map-pin.is-aluminum .map-pin-dot { background: #c5d0d8; }
.map-pin.is-coal .map-pin-dot { background: #c4a056; }
.map-pin.is-copper .map-pin-dot { background: #c47a3a; }
.map-pin.is-nickel .map-pin-dot { background: #5f9e8e; }
.map-pin-leader {
  position: absolute;
  left: 50%;
  top: 50%;
  width: var(--arm, 48px);
  height: 2px;
  margin-top: -1px;
  background: #0b2740;
  box-shadow: 0 0 0 1px #fff;
  transform-origin: 0 50%;
  z-index: 2;
  pointer-events: none;
}
.map-pin-leader::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 50%;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 5px 8px 5px 0;
  border-color: transparent #0b2740 transparent transparent;
  transform: translateY(-50%);
  filter: drop-shadow(-1px 0 0 #fff);
}
.map-pin-card {
  position: absolute;
  z-index: 4;
  padding: 5px 8px 5px 9px;
  border-radius: 8px;
  background: rgba(8, 22, 38, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.22);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.42);
  color: #fff;
  white-space: nowrap;
  line-height: 1.2;
  pointer-events: none;
}
.map-pin-card strong {
  display: block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.map-pin-card em {
  display: block;
  margin-top: 2px;
  font-style: normal;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--gold-2);
}
.map-pin.is-aluminum .map-pin-card em { color: #d5dde3; }
.map-pin.is-coal .map-pin-card em { color: #e0c07a; }
.map-pin.is-copper .map-pin-card em { color: #e09a5a; }
.map-pin.is-nickel .map-pin-card em { color: #8fc9b8; }
.map-pin.is-electronics .map-pin-card em { color: #7eb6de; }
.map-pin.is-hub .map-pin-card em { color: #9ec9e8; }
.map-pin.is-korea .map-pin-card em { color: #c5ccd4; }
.map-pin[data-label="e"] .map-pin-leader { transform: rotate(0deg); }
.map-pin[data-label="e"] .map-pin-card {
  left: calc(var(--arm, 48px) + 8px);
  top: 50%;
  transform: translateY(-50%);
}
.map-pin[data-label="w"] .map-pin-leader { transform: rotate(180deg); }
.map-pin[data-label="w"] .map-pin-card {
  right: calc(var(--arm, 48px) + 8px);
  top: 50%;
  transform: translateY(-50%);
}
.map-pin[data-label="n"] .map-pin-leader { transform: rotate(-90deg); }
.map-pin[data-label="n"] .map-pin-card {
  left: 50%;
  bottom: calc(var(--arm, 48px) + 8px);
  transform: translateX(-50%);
}
.map-pin[data-label="s"] .map-pin-leader { transform: rotate(90deg); }
.map-pin[data-label="s"] .map-pin-card {
  left: 50%;
  top: calc(var(--arm, 48px) + 8px);
  transform: translateX(-50%);
}
.map-pin[data-label="ne"] .map-pin-leader { transform: rotate(-40deg); }
.map-pin[data-label="ne"] .map-pin-card {
  left: calc(var(--arm, 48px) * 0.76);
  bottom: calc(var(--arm, 48px) * 0.62);
}
.map-pin[data-label="nw"] .map-pin-leader { transform: rotate(-140deg); }
.map-pin[data-label="nw"] .map-pin-card {
  right: calc(var(--arm, 48px) * 0.76);
  bottom: calc(var(--arm, 48px) * 0.62);
}
.map-pin[data-label="se"] .map-pin-leader { transform: rotate(40deg); }
.map-pin[data-label="se"] .map-pin-card {
  left: calc(var(--arm, 48px) * 0.76);
  top: calc(var(--arm, 48px) * 0.62);
}
.map-pin[data-label="sw"] .map-pin-leader { transform: rotate(140deg); }
.map-pin[data-label="sw"] .map-pin-card {
  right: calc(var(--arm, 48px) * 0.76);
  top: calc(var(--arm, 48px) * 0.62);
}
.network-map.is-tracking .map-pin:not(.is-on-route) {
  opacity: 0.38;
}
.network-map.is-tracking .map-pin:not(.is-on-route) .map-pin-card,
.network-map.is-tracking .map-pin:not(.is-on-route) .map-pin-leader {
  opacity: 0;
}
.network-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  padding: 14px 18px;
  color: var(--slate);
  background: var(--paper);
  border-top: 1px solid var(--line);
  font-size: 12px;
}
.network-legend span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.network-legend b { font-weight: 600; }
.legend-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  flex: 0 0 auto;
}
.resource-dot { background: var(--gold); }
.electronics-dot { background: #4e8fc0; }
.hub-dot {
  background: var(--navy);
  border: 2px solid var(--navy);
}
.korea-dot { background: var(--slate); }
.track-panel {
  display: grid;
  gap: 14px;
  margin: 0 0 18px;
  padding: 20px 18px 16px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--shadow);
}
.track-badge {
  display: inline-block;
  margin-bottom: 8px;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--gold-soft);
  color: var(--gold-ink);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.track-panel h3 {
  color: var(--navy);
  font-size: 22px;
  margin-bottom: 6px;
}
.track-panel-copy > p:last-child {
  color: var(--muted);
  font-size: 14px;
  max-width: 62ch;
}
.track-form {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  align-items: end;
}
.track-field {
  display: grid;
  gap: 6px;
}
.track-field span {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--slate);
}
.track-field input {
  width: 100%;
  height: 48px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--paper);
  font-family: Outfit, Pretendard, monospace;
  letter-spacing: 0.04em;
}
.track-field input:focus {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
  background: var(--white);
}
.track-field input.is-invalid {
  border-color: #b42318;
}
.track-samples {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
}
.track-chip {
  height: 34px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--paper);
  color: var(--navy);
  font-family: Outfit, Pretendard, monospace;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}
.track-chip:hover,
.track-chip.is-active {
  border-color: var(--gold);
  background: var(--gold-soft);
}
.track-samples.is-hint .track-chip {
  border-color: var(--gold);
  animation: trackHint 0.9s ease 3;
}
@keyframes trackHint {
  0%, 100% { background: var(--paper); }
  50% { background: var(--gold-soft); }
}
.track-msg {
  margin: 0;
  color: #b42318;
  font-size: 13px;
}
.track-note {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  max-width: 68ch;
}
.track-layer {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 2;
}
.track-route-bg {
  stroke: rgba(47, 158, 216, 0.22);
  stroke-width: 16;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.track-route {
  stroke: var(--gold);
  stroke-width: 8;
  stroke-linecap: round;
  stroke-linejoin: round;
  filter: drop-shadow(0 0 7px rgba(47, 158, 216, 0.55));
}
.track-ship {
  fill: var(--gold);
  stroke: #fff;
  stroke-width: 2;
  filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.45));
}
.track-hud {
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 12px;
  z-index: 4;
  max-width: 340px;
  padding: 14px 14px 12px;
  background: rgba(11, 39, 64, 0.92);
  color: #d7e6f0;
  border-radius: 14px;
}
.track-hud-kicker {
  margin-bottom: 8px;
  color: var(--gold-2);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.track-hud-dl {
  display: grid;
  gap: 6px;
  margin-bottom: 10px;
}
.track-hud-dl div {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 8px;
  align-items: baseline;
}
.track-hud dt {
  color: #9bb3c4;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.track-hud dd {
  color: #fff;
  font-size: 13px;
  font-weight: 600;
}
.track-progress {
  height: 4px;
  margin-bottom: 8px;
  background: rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  overflow: hidden;
}
.track-progress span {
  display: block;
  height: 100%;
  width: 0;
  background: var(--gold);
  transition: width 0.2s linear;
}
.track-hud-status {
  margin: 0;
  color: var(--gold-2);
  font-size: 13px;
  font-weight: 700;
}
.network-map.is-tracking .map-pin-dot {
  transform: scale(0.92);
}
.network-map.is-tracking .map-pin.is-origin .map-pin-dot {
  transform: rotate(45deg) scale(0.92);
}
.network-map.is-tracking .map-pin.is-on-route .map-pin-dot {
  transform: scale(1.2);
  box-shadow: 0 0 0 6px rgba(47, 158, 216, 0.28);
}
.network-map.is-tracking .map-pin.is-origin.is-on-route .map-pin-dot {
  transform: rotate(45deg) scale(1.2);
}
.network-locations {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 20px;
}
.location-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: start;
  padding: 20px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 16px;
}
.location-card[data-network="resource"] { border-top: 3px solid var(--gold); }
.location-card[data-network="electronics"] { border-top: 3px solid #65a5d8; }
.location-card[data-network="hub"] { border-top: 3px solid var(--navy); }
.location-card[data-network="hub"] .location-type { color: var(--navy); }
.location-card[data-network="korea"] { border-top: 3px solid var(--slate); }
.location-card[data-network="korea"] .location-type { color: var(--slate); }
.location-index {
  font-family: Outfit, serif;
  color: var(--muted);
  font-size: 22px;
  line-height: 1;
}
.location-type {
  margin-bottom: 3px;
  color: var(--gold-ink);
  font-family: Outfit, serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.location-card[data-network="electronics"] .location-type { color: #356b98; }
.location-card h3 {
  margin-bottom: 2px;
  color: var(--navy);
  font-size: 20px;
}
.location-country {
  margin-bottom: 6px;
  color: var(--slate);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
}
.location-card div > p:last-child {
  color: var(--muted);
  font-size: 14px;
}

/* ---------- Process ---------- */
.process {
  position: relative;
  background: var(--navy);
  color: #f4efe6;
  overflow: hidden;
}
.process-bg {
  position: absolute;
  inset: 0;
  opacity: 0.22;
  pointer-events: none;
}
.process-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(0.25);
}
.process .container { position: relative; }
.process .eyebrow { color: var(--gold-2); }

.steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
.steps li {
  background: rgba(23, 48, 79, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  padding: 24px 20px;
  backdrop-filter: blur(8px);
}
.steps strong {
  font-family: Outfit, serif;
  color: var(--gold-2);
  font-size: 28px;
}
.steps h3 { margin: 12px 0 8px; font-size: 20px; }
.steps p { color: #c9c3b8; font-size: 15px; }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: start;
}
.contact-desks {
  margin-top: 28px;
  display: grid;
  gap: 16px;
}
.contact-desk {
  padding: 18px 16px 16px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 16px;
  border-top: 4px solid var(--slate);
}
.contact-desk.is-front {
  border-top-color: var(--gold);
  background: linear-gradient(180deg, var(--gold-soft), var(--white) 48px);
}
.contact-desk-kicker {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold-ink);
  margin-bottom: 4px;
}
.contact-desk:not(.is-front) .contact-desk-kicker { color: var(--slate); }
.contact-desk h3 {
  font-family: Outfit, Pretendard, sans-serif;
  font-size: 22px;
  color: var(--navy);
  margin-bottom: 4px;
}
.contact-desk-role {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 12px;
}
.contact-desk .contact-list { margin-top: 0; }
.contact-desk .contact-list li { background: var(--paper); }
.contact-list {
  margin-top: 28px;
  display: grid;
  gap: 10px;
}
.contact-list li {
  padding: 14px 16px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 12px;
}
.contact-list span {
  display: block;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.contact-list a,
.contact-list strong,
.contact-list address {
  font-size: 18px;
  font-weight: 650;
}
.contact-list a:hover { color: var(--gold-ink); }
.addr-en {
  margin-top: 16px;
  color: var(--muted);
  font-size: 14px;
}

.inquiry-form {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 16px;
}
.form-head { margin-bottom: 4px; }
.form-kicker {
  color: var(--gold-ink);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.form-head h3 {
  margin-top: 4px;
  color: var(--navy);
  font-family: Outfit, serif;
  font-size: 28px;
}
.inquiry-form label {
  display: grid;
  gap: 8px;
  font-weight: 600;
  font-size: 14px;
}
.inquiry-form input,
.inquiry-form select,
.inquiry-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--paper);
  border-radius: 12px;
  padding: 12px 14px;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.inquiry-form input:focus,
.inquiry-form select:focus,
.inquiry-form textarea:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(184, 149, 90, 0.18);
  outline: none;
}
.inquiry-form input.is-invalid,
.inquiry-form textarea.is-invalid {
  border-color: #b45353;
}
.inquiry-form textarea { resize: vertical; min-height: 120px; }
.form-note { font-size: 13px; color: var(--muted); font-weight: 400; }
.form-note.is-error { color: #8b3a42; }

/* ---------- Background music ---------- */
.bgm {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 36;
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: min(280px, calc(100vw - 32px));
  padding: 8px 14px 8px 8px;
  border-radius: 999px;
  background: rgba(11, 39, 64, 0.94);
  color: #f4efe6;
  box-shadow: 0 12px 32px rgba(11, 39, 64, 0.28);
  border: 1px solid rgba(255, 255, 255, 0.12);
}
.bgm-btn {
  flex: 0 0 auto;
  width: 40px;
  height: 40px;
  border: 0;
  border-radius: 50%;
  background: var(--gold);
  color: #fff;
  display: grid;
  place-items: center;
  cursor: pointer;
}
.bgm-btn:hover { background: var(--gold-2); }
.bgm-pause { display: none; }
.bgm.is-playing .bgm-play { display: none; }
.bgm.is-playing .bgm-pause { display: block; }
.bgm:not(.is-playing) .bgm-btn {
  animation: bgmPulse 2.4s ease-in-out infinite;
}
@keyframes bgmPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(47, 158, 216, 0.45); }
  70% { box-shadow: 0 0 0 10px rgba(47, 158, 216, 0); }
}
.bgm-meta {
  min-width: 0;
  line-height: 1.25;
}
.bgm-meta strong {
  display: block;
  font-size: 12px;
  font-weight: 700;
}
.bgm-meta small {
  display: block;
  margin-top: 2px;
  font-size: 10px;
  color: rgba(244, 239, 230, 0.72);
}

/* ---------- Footer / FAB ---------- */
.site-footer {
  background: var(--navy);
  color: #c9c3b8;
  padding: 48px 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.footer-brand .brand-text small,
.footer-brand .brand-text strong { color: #f4efe6; }
.footer-brand-block p {
  max-width: 320px;
  margin-top: 14px;
  font-size: 14px;
  line-height: 1.7;
}
.footer-grid h3 {
  margin-bottom: 12px;
  color: #f4efe6;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.footer-grid ul { display: grid; gap: 8px; }
.footer-grid a:hover { color: var(--gold-2); }
.footer-addr-en {
  margin-top: 8px;
  font-size: 13px;
  opacity: .75;
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding-top: 20px;
  font-size: 13px;
}
.footer-top {
  color: var(--gold-2);
  font-weight: 600;
}

/* ---------- Reveal (driven by Intersection Observer) ---------- */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}
.reveal:nth-child(2) { transition-delay: 0.08s; }
.reveal:nth-child(3) { transition-delay: 0.16s; }
.reveal:nth-child(4) { transition-delay: 0.24s; }


/* ---------- Document library ---------- */
.library { background: var(--white); }
.lib-group { margin-bottom: 44px; }
.lib-group:last-of-type { margin-bottom: 32px; }
.lib-group-head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 6px 12px;
  padding-bottom: 14px;
  margin-bottom: 20px;
  border-bottom: 2px solid var(--navy);
}
.lib-group-head h3 {
  font-family: Outfit, Pretendard, sans-serif;
  font-size: 20px;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: -0.01em;
}
.lib-group-head p {
  flex: 1 1 260px;
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
}
.lib-count {
  flex-shrink: 0;
  min-width: 26px;
  height: 26px;
  padding: 0 9px;
  border-radius: 999px;
  background: var(--gold-soft);
  color: var(--navy);
  font-size: 12px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.lib-grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(268px, 1fr));
  gap: 14px;
}
.lib-card { display: flex; }
.lib-link {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
  padding: 18px 18px 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--white);
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.15s;
}
.lib-link:hover,
.lib-link:focus-visible {
  border-color: var(--gold);
  box-shadow: 0 12px 30px rgba(11, 39, 64, 0.08);
  transform: translateY(-2px);
}
.lib-top {
  display: flex;
  align-items: center;
  gap: 10px;
}
.lib-icon {
  flex-shrink: 0;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--paper);
  color: var(--navy);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.lib-link:hover .lib-icon { background: var(--gold-soft); color: var(--gold); }
.lib-tags {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  min-width: 0;
}
.lib-type {
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.14em;
  color: var(--gold-ink);
}
.lib-meta {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.01em;
}
.lib-new {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--white);
  background: var(--navy);
  border-radius: 999px;
  padding: 2px 8px;
}
.lib-link strong {
  font-size: 15px;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.4;
}
.lib-desc {
  flex: 1;
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted);
}
.lib-get {
  margin-top: 2px;
  font-size: 12px;
  font-weight: 700;
  color: var(--gold-ink);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.lib-get::after {
  content: "";
  width: 13px;
  height: 13px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg) translate(-1px, -1px);
  transition: transform 0.2s;
}
.lib-link:hover .lib-get::after { transform: rotate(45deg) translate(1px, 1px); }
.lib-note {
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
  border-top: 1px solid var(--line);
  padding-top: 18px;
}
.lib-note a { color: var(--gold-ink); font-weight: 700; }
.lib-note a:hover { text-decoration: underline; }

.docs-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  padding: 0;
  border: 0;
  background: none;
  font-size: 13px;
  font-weight: 700;
  color: var(--gold-ink);
  cursor: pointer;
  text-align: left;
}
.docs-more::after {
  content: "→";
  transition: transform 0.2s;
}
.docs-more:hover::after { transform: translateX(3px); }
.panel-more { margin: -10px 0 22px; }


/* 어두운 배경 위에서는 밝은 시안을 유지한다 (대비 방향이 반대) */
.hero .eyebrow,
.process .eyebrow,
.section-head.light .eyebrow,
.briefing-cover .briefing-tag,
.site-footer .eyebrow { color: var(--gold-2); }

/* 최소 터치 영역 24px 확보 (WCAG 2.5.8) */
.text-link,
.division-link,
.docs-more,
.contact-list a,
.footer-grid a,
.footer-top,
.lib-note a {
  min-height: 24px;
  display: inline-flex;
  align-items: center;
}
.footer-grid ul li { margin-bottom: 2px; }
.contact-list a { padding: 2px 0; }

/* ---------- 문서 목차 (보고서 요약) ---------- */
.doc-toc {
  list-style: none;
  margin: 14px 0 4px;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
}
.doc-toc li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 9px 12px;
  border-radius: 8px;
}
.doc-toc li:nth-child(odd) { background: var(--paper); }
.doc-toc .toc-n {
  flex-shrink: 0;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--gold-ink);
  min-width: 20px;
}
.doc-toc strong {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.45;
}
.doc-toc small {
  display: block;
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.6;
  margin-top: 1px;
}

/* ---------- Breakpoints ---------- */
@media (max-width: 599px) {
  .brand-text small { display: none; }
  .bgm-meta { display: none; }
  .bgm { padding: 8px; }
}

@media (max-width: 767px) {
  .hero {
    min-height: 0;
    align-items: stretch;
  }
  .hero-inner { padding: 92px 0 28px; }
  .hero h1 { font-size: clamp(32px, 10vw, 42px); }
  .hero-cta { margin-top: 18px; }
  .hero-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    margin-top: 22px;
    padding-top: 16px;
  }
  .hero-stats strong { font-size: 20px; }
  .hero-stats span { font-size: 11px; }
  .materials { grid-auto-rows: 132px; }
  .strip article { padding: 18px 4px; }
  .section { padding: 44px 0; }
  .section-head { margin-bottom: 20px; }
  .about-grid { gap: 20px; }
  .about-photo { margin-top: 16px; }
  .about-photo img { height: 180px; }
  .about-profile,
  .org-wrap { margin-top: 28px; }
  .org-board { padding: 18px 12px 16px; }
  .divisions,
  .principles,
  .facts { margin-top: 18px; }
  .contact-desks,
  .contact-list { margin-top: 16px; }
  .map-pin-dot { width: 11px; height: 11px; border-width: 2px; }
  .map-pin-card,
  .map-pin-leader { display: none; }
}

@media (min-width: 640px) {
  .container { width: min(1180px, calc(100% - 40px)); }
  .hero-stats { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
  .materials { grid-auto-rows: 240px; }
  .material strong { font-size: 16px; }
  .facts { grid-template-columns: repeat(2, 1fr); }
  .org-partners { grid-template-columns: 1fr 1fr; }
  .about-photo img { height: 280px; }
  .about-profile { margin-top: 56px; }
  .org-wrap { margin-top: 56px; }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .map-pin.is-dense .map-pin-card,
  .map-pin.is-dense .map-pin-leader { display: none; }
  .map-pin-card { padding: 4px 7px; }
  .map-pin-card strong { font-size: 11px; }
}

@media (min-width: 768px) {
  .doc-toc { grid-template-columns: 1fr 1fr; }
  .header-actions .header-cta { display: inline-flex; }
  .strip-grid { grid-template-columns: 1fr 1fr; }
  .strip article {
    padding: 32px 24px;
    border-right: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
  }
  .strip article:nth-child(2n) { border-right: 0; }
  .divisions { grid-template-columns: 1fr 1fr; }
  .principles { grid-template-columns: repeat(3, 1fr); }
  .org-branches {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    position: relative;
    padding-top: 22px;
  }
  .org-branches::before {
    content: "";
    position: absolute;
    top: 0;
    left: calc(16.66% + 8px);
    right: calc(16.66% + 8px);
    height: 1px;
    background: var(--gold);
  }
  .org-branch {
    position: relative;
  }
  .org-branch::before {
    content: "";
    position: absolute;
    top: -22px;
    left: 50%;
    width: 1px;
    height: 22px;
    background: var(--gold);
  }
  .org-board { padding: 36px 28px 28px; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .product-wide { grid-template-columns: 1fr; }
  .spec-badges { grid-template-columns: repeat(4, 1fr); }
  .resource-docs { grid-template-columns: 1fr 1fr; }
  .briefing-cover {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
    padding: 36px 32px;
  }
  .briefing-body { padding: 32px; }
  .briefing-stats { grid-template-columns: repeat(4, 1fr); gap: 18px; }
  .briefing-market { grid-template-columns: 1fr 1fr; }
  .briefing-steps { grid-template-columns: 1fr 1fr; }
  .mfr-split,
  .mfr-contacts { grid-template-columns: 1fr 1fr; }
  .product-showroom .product-visual img {
    height: 340px;
    min-height: 340px;
  }
  .showroom-overlay { padding: 64px 20px 20px; }
  .spec-badges strong { font-size: 30px; }
  .network-head {
    grid-template-columns: 0.9fr 1.1fr;
    align-items: end;
  }
  .network-locations { grid-template-columns: 1fr 1fr; }
  .track-form {
    grid-template-columns: 1fr auto;
    max-width: 560px;
  }
  .track-panel { padding: 24px 24px 18px; }
  .track-hud {
    left: 16px;
    right: auto;
    width: 300px;
  }
  .steps { grid-template-columns: 1fr 1fr; }
  .section { padding: 92px 0; }
}

@media (min-width: 1024px) {
  .menu-btn,
  .nav-overlay { display: none; }

  .nav {
    position: static;
    flex-direction: row;
    align-items: center;
    gap: 22px;
    margin-left: auto;
    padding: 0;
    background: transparent;
    border: 0;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: none;
    transition: none;
  }
  .nav a {
    padding: 0;
    font-size: 15px;
    font-weight: 500;
    color: #f4efe6;
  }
  .nav a::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -6px;
    height: 1px;
    background: var(--gold-2);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.2s;
  }
  .nav a.is-current::after,
  .nav a:hover::after { transform: scaleX(1); }
  .site-header.is-scrolled .nav a { color: var(--ink); }
  .site-header.is-scrolled .nav a::after { background: var(--gold); }
  .header-actions { margin-left: 0; }
  .header-inner { gap: 28px; }

  .hero-inner {
    max-width: 760px;
    margin-left: max(20px, calc((100% - 1180px) / 2));
    padding: 140px 0 72px;
  }

  .materials {
    grid-template-columns: repeat(5, 1fr);
    grid-auto-rows: 300px;
  }
  .material-wide { grid-column: span 2; }
  .material-break { grid-column: auto; }
  .material strong { font-size: 17px; }

  .strip-grid { grid-template-columns: repeat(4, 1fr); }
  .strip article { border-bottom: 0; }
  .strip article:nth-child(2n) { border-right: 1px solid var(--line); }
  .strip article:last-child { border-right: 0; }

  .about-grid {
    grid-template-columns: 0.95fr 1.05fr;
    gap: 64px;
  }
  .about-photo img { height: 320px; }
  .about-profile { margin-top: 72px; }
  .org-wrap { margin-top: 72px; }

  .tabs,
  .sheet-tabs {
    display: inline-flex;
    width: auto;
    border-radius: 999px;
  }
  .tab,
  .sheet-tab {
    min-width: 168px;
    padding: 11px 26px;
    border-radius: 999px;
  }
  .sheet-tab {
    min-width: 132px;
    padding: 11px 16px;
  }

  .product-wide { grid-template-columns: 1.05fr 0.95fr; }
  .product-visual img { height: 260px; }
  .product-wide .product-visual img { height: 100%; min-height: 320px; }
  .product-wide.product-showroom { grid-template-columns: 1fr; }
  .product-wide.product-showroom .product-visual img {
    height: 420px;
    min-height: 380px;
  }
  .product-thumbs img { height: 88px; }
  .product-showroom .spec-board { grid-template-columns: repeat(4, 1fr); }
  .product-body { padding: 28px; }
  .product-body h3 { font-size: 26px; }

  .briefing-steps { grid-template-columns: repeat(4, 1fr); }

  .steps { grid-template-columns: repeat(4, 1fr); gap: 18px; }
  .facts { grid-template-columns: repeat(4, 1fr); }
  .contact-grid { grid-template-columns: 1fr 1fr; gap: 56px; }
  .network-locations { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
  .footer-grid { grid-template-columns: 1.4fr 0.8fr 0.9fr 1.1fr; gap: 40px; }
  .section { padding: 108px 0; }
}

@media (min-width: 1280px) {
  .hero-inner { padding-bottom: 80px; }
  .materials {
    grid-template-columns: repeat(6, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal,
  .reveal.is-visible {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .material img,
  .product-visual img,
  .nav,
  .btn { transition: none; }
  .track-progress span { transition: none; }
  .track-samples.is-hint .track-chip { animation: none; }
  .bgm:not(.is-playing) .bgm-btn { animation: none; }
}