/* ============================================================
   RGN BIO GLOBAL — Company Overview
   Editorial luxury one-pager — production styles
   Recreated from Genspark Design handoff (Ivory palette)
============================================================ */

:root {
  --bg: #F5EFE4;
  --bg-alt: #EDE4D2;
  --paper: #FBF7EE;
  --ink: #241A10;
  --ink-2: #4B3B2A;
  --muted: #8A7A62;
  --gold: #B08D57;
  --gold-deep: #8A6A38;
  --accent: #2A1F14;
  --hair: rgba(36,26,16,0.14);
  --serif: 'Cormorant Garamond', 'Noto Serif KR', serif;
  --sans: 'Inter', 'Noto Sans KR', sans-serif;
  --shell: linear-gradient(180deg, #F5EFE4 0%, #EDE3CE 100%);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
html, body { background: var(--bg); color: var(--ink); font-family: var(--sans); }
body { font-size: 15px; line-height: 1.6; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
a { color: inherit; }
img { display: block; max-width: 100%; }
ul { list-style: none; }

/* Utilities */
.serif { font-family: var(--serif); font-weight: 400; letter-spacing: -0.005em; }
.smallcap {
  font-family: var(--sans);
  text-transform: uppercase;
  letter-spacing: 0.28em;
  font-size: 11px;
  font-weight: 500;
  color: var(--muted);
}
.numeral { font-family: var(--serif); font-style: italic; color: var(--gold); }
.gold-line { height: 1px; background: var(--gold); opacity: 0.6; }
.hair-line { height: 1px; background: var(--hair); }

.container { max-width: 1360px; margin: 0 auto; padding: 0 64px; }
.container-narrow { max-width: 1080px; margin: 0 auto; padding: 0 64px; }
@media (max-width: 900px) {
  .container, .container-narrow { padding: 0 28px; }
}
@media (max-width: 640px) {
  .container, .container-narrow { padding: 0 20px; }
}

/* Section base */
section { position: relative; }
.sec-top { padding-top: 120px; }
.sec { padding: 140px 0; }
.sec-lg { padding: 180px 0; }
@media (max-width: 900px) {
  .sec { padding: 90px 0; }
  .sec-lg { padding: 110px 0; }
}

/* Hero */
.hero { min-height: 100vh; background: var(--shell); position: relative; overflow: hidden; }
.hero-inner { position: relative; z-index: 2; padding-top: 140px; padding-bottom: 100px; }
.hero-title {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(64px, 10vw, 148px);
  line-height: 0.95;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.hero-title em { font-style: italic; color: var(--gold); font-weight: 400; }
.hero-title .plus { color: var(--gold); font-weight: 400; }
.hero-sub {
  max-width: 560px;
  margin-top: 40px;
  font-family: var(--serif);
  font-weight: 400;
  font-size: 22px;
  line-height: 1.5;
  color: var(--ink-2);
}
.hero-meta {
  display: flex; gap: 48px; margin-top: 64px; flex-wrap: wrap;
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}
.hero-meta strong { color: var(--ink); display: block; font-size: 26px; font-family: var(--serif); font-weight: 500; letter-spacing: 0; text-transform: none; margin-top: 6px; }

.brand-mark { display: flex; align-items: center; gap: 14px; }
.brand-mark .logo-mark {
  width: 40px; height: 40px; border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, var(--gold), var(--gold-deep));
  position: relative; flex: none;
}
.brand-mark .logo-mark::after {
  content: ""; position: absolute; inset: 4px; border-radius: 50%;
  border: 1px solid var(--bg);
}
.brand-mark .logo-mark::before {
  content: "R"; position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  color: var(--bg); font-family: var(--serif); font-weight: 500; font-size: 20px;
}
.brand-mark .brand-txt { line-height: 1.1; }
.brand-mark .brand-txt .co { font-family: var(--serif); font-size: 20px; color: var(--ink); letter-spacing: 0.02em; }
.brand-mark .brand-txt .co em { color: var(--gold); font-style: normal; font-weight: 500; }
.brand-mark .brand-txt .tag { font-size: 10px; letter-spacing: 0.28em; text-transform: uppercase; color: var(--muted); margin-top: 3px; }

/* Top nav */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 22px 64px;
  display: flex; align-items: center; justify-content: space-between;
  background: rgba(245,239,228,0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--hair);
}
.nav ul { display: flex; gap: 32px; }
.nav ul a { text-decoration: none; font-size: 12px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--ink-2); transition: color 0.2s ease; }
.nav ul a:hover { color: var(--gold); }
.nav-toggle {
  display: none; width: 32px; height: 24px; position: relative; background: none; border: none; cursor: pointer; padding: 0;
}
.nav-toggle span {
  position: absolute; left: 0; right: 0; height: 1px; background: var(--ink); transition: all 0.25s ease;
}
.nav-toggle span:nth-child(1) { top: 2px; }
.nav-toggle span:nth-child(2) { top: 11px; }
.nav-toggle span:nth-child(3) { top: 20px; }
.nav-toggle.open span:nth-child(1) { transform: translateY(9px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }

@media (max-width: 900px) {
  .nav { padding: 18px 24px; }
  .nav ul {
    display: flex; flex-direction: column; gap: 0;
    position: fixed; top: 65px; left: 0; right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--hair);
    max-height: 0; overflow: hidden;
    transition: max-height 0.35s ease;
  }
  .nav ul.open { max-height: 520px; }
  .nav ul li { border-top: 1px solid var(--hair); }
  .nav ul a { display: block; padding: 16px 24px; }
  .nav-toggle { display: block; }
}

/* Section header */
.sec-head { display: grid; grid-template-columns: 1fr 3fr; gap: 60px; margin-bottom: 80px; align-items: start; }
.sec-head .left { position: sticky; top: 120px; }
.sec-head .idx { font-family: var(--serif); font-style: italic; color: var(--gold); font-size: 22px; }
.sec-head .lbl { margin-top: 12px; font-size: 11px; letter-spacing: 0.3em; text-transform: uppercase; color: var(--muted); }
.sec-head h2 {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(40px, 5.6vw, 84px);
  line-height: 1.02;
  letter-spacing: -0.015em;
  color: var(--ink);
}
.sec-head h2 em { font-style: italic; color: var(--gold); }
.sec-head .lede { margin-top: 32px; line-height: 1.7; color: var(--ink-2); max-width: 720px; font-family: var(--serif); font-weight: 400; font-size: 20px; }
@media (max-width: 900px) { .sec-head { grid-template-columns: 1fr; gap: 20px; margin-bottom: 56px; } .sec-head .left { position: static; } }

/* Section variants */
.band-alt { background: var(--bg-alt); }
.band-dark { background: var(--accent); color: var(--paper); }

/* Company stats */
.stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 48px; margin-top: 80px;
  padding-top: 40px; border-top: 1px solid var(--hair);
}
.stat .n { font-family: var(--serif); font-size: 64px; font-weight: 400; color: var(--ink); line-height: 1; letter-spacing: -0.02em; }
.stat .n em { color: var(--gold); font-style: normal; }
.stat .lbl { margin-top: 14px; font-size: 11px; letter-spacing: 0.24em; text-transform: uppercase; color: var(--muted); }
.stat .desc { margin-top: 6px; font-size: 13px; color: var(--ink-2); }
@media (max-width: 900px) { .stats { grid-template-columns: repeat(2, 1fr); gap: 32px; } }

/* Corporate identity signage card */
.identity-card {
  margin: 0 0 72px;
  background: linear-gradient(180deg, #F6F1E4 0%, #EFE7D2 100%);
  border: 1px solid var(--hair);
  padding: 48px 32px 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  overflow: hidden;
}
.identity-card .kicker-label { font-size: 10px; letter-spacing: 0.4em; text-transform: uppercase; color: var(--gold); margin-bottom: 24px; }
.identity-card img { max-width: min(680px, 100%); width: 100%; height: auto; display: block; mix-blend-mode: multiply; }
.identity-card .id-footer { margin-top: 28px; display: flex; gap: 24px; align-items: center; flex-wrap: wrap; justify-content: center; }
.identity-card .id-footer span.txt { font-size: 11px; letter-spacing: 0.32em; text-transform: uppercase; color: var(--ink-2); }
.identity-card .id-footer span.dot { width: 4px; height: 4px; background: var(--gold); border-radius: 50%; }

/* Entity cards */
.entity-grid { margin-top: 28px; display: grid; grid-template-columns: 1fr 1fr; gap: 24px; max-width: 760px; }
.entity-card { padding: 20px 22px; border: 1px solid var(--hair); background: var(--paper); }
.entity-card .e-kicker { font-size: 10px; letter-spacing: 0.3em; text-transform: uppercase; color: var(--gold); }
.entity-card .e-name { font-family: var(--serif); font-size: 22px; margin-top: 6px; color: var(--ink); letter-spacing: -0.005em; }
.entity-card .e-info { font-size: 12px; color: var(--muted); margin-top: 6px; letter-spacing: 0.02em; }
.entity-card .e-role { font-size: 11px; font-style: italic; color: var(--muted); margin-top: 4px; }
@media (max-width: 600px) { .entity-grid { grid-template-columns: 1fr; } }

/* Brand Architecture */
.arch {
  background: var(--paper);
  border: 1px solid var(--hair);
  padding: 80px 60px;
  margin-top: 40px;
  position: relative;
}
.arch-corner { position: absolute; width: 16px; height: 16px; border: 1px solid var(--gold); }
.arch-corner.tl { top: 12px; left: 12px; border-right: none; border-bottom: none; }
.arch-corner.tr { top: 12px; right: 12px; border-left: none; border-bottom: none; }
.arch-corner.bl { bottom: 12px; left: 12px; border-right: none; border-top: none; }
.arch-corner.br { bottom: 12px; right: 12px; border-left: none; border-top: none; }
.arch-master { text-align: center; padding-bottom: 60px; }
.arch-master .kw { font-size: 11px; letter-spacing: 0.32em; text-transform: uppercase; color: var(--muted); }
.arch-master .name { font-family: var(--serif); font-size: 96px; font-weight: 300; line-height: 1; margin-top: 12px; color: var(--ink); letter-spacing: -0.02em; }
.arch-master .name .plus { color: var(--gold); font-weight: 400; }
.arch-master .tag { margin-top: 16px; font-family: var(--serif); font-style: italic; font-size: 20px; color: var(--ink-2); }
.arch-branches { display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid var(--hair); padding-top: 32px; gap: 0; }
.arch-branch { text-align: center; padding: 0 16px; border-right: 1px solid var(--hair); position: relative; }
.arch-branch:last-child { border-right: none; }
.arch-branch .connector { position: absolute; top: -32px; left: 50%; width: 1px; height: 32px; background: var(--gold); opacity: 0.5; }
.arch-branch .b-name { font-family: var(--serif); font-size: 24px; font-weight: 500; color: var(--ink); }
.arch-branch .b-cat { font-size: 10px; letter-spacing: 0.28em; text-transform: uppercase; color: var(--gold); margin-top: 8px; }
.arch-branch .b-desc { margin-top: 12px; font-size: 13px; color: var(--ink-2); line-height: 1.5; }
@media (max-width: 900px) {
  .arch { padding: 40px 24px; }
  .arch-master .name { font-size: 64px; }
  .arch-branches { grid-template-columns: repeat(2, 1fr); gap: 32px 0; }
  .arch-branch { border-right: none; border-bottom: 1px solid var(--hair); padding-bottom: 24px; }
  .arch-branch .connector { display: none; }
}

/* Product spread */
.product { display: grid; grid-template-columns: 1.05fr 1fr; gap: 80px; align-items: center; }
.product.reverse { grid-template-columns: 1fr 1.05fr; }
.product.reverse .p-visual { order: 2; }
.product.reverse .p-copy { order: 1; }
.p-visual {
  background: var(--paper);
  aspect-ratio: 4/5;
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
  border: 1px solid var(--hair);
}
.p-visual img { max-width: 88%; max-height: 88%; object-fit: contain; }
.p-visual.tint-navy { background: linear-gradient(180deg, #0B111C 0%, #131E30 100%); }
.p-visual.tint-green { background: linear-gradient(180deg, #DCE1CE 0%, #BEC7A6 100%); }
.p-visual.tint-ivory { background: linear-gradient(180deg, #F5EFE4 0%, #E5DBC5 100%); }
.p-visual .p-label { position: absolute; top: 24px; left: 24px; font-size: 10px; letter-spacing: 0.3em; text-transform: uppercase; color: var(--muted); }
.p-visual .p-code { position: absolute; bottom: 24px; right: 28px; font-family: var(--serif); font-style: italic; font-size: 18px; color: var(--muted); }
.p-copy .p-num { font-family: var(--serif); font-style: italic; color: var(--gold); font-size: 20px; }
.p-copy .p-cat { font-size: 11px; letter-spacing: 0.3em; text-transform: uppercase; color: var(--muted); margin-top: 8px; }
.p-copy .p-title { font-family: var(--serif); font-size: clamp(40px, 5vw, 68px); font-weight: 400; line-height: 1.02; margin-top: 16px; color: var(--ink); letter-spacing: -0.015em; }
.p-copy .p-title em { font-style: italic; color: var(--gold); }
.p-copy .p-title .plus { color: var(--gold); font-weight: 400; }
.p-copy .p-tagline { margin-top: 14px; font-family: var(--serif); font-style: italic; font-size: 20px; color: var(--ink-2); }
.p-copy .p-desc { margin-top: 24px; font-size: 15px; line-height: 1.75; color: var(--ink-2); max-width: 520px; }
.p-copy .p-desc + .p-desc { margin-top: 14px; }
.p-copy .p-desc em { font-style: italic; color: var(--gold); font-family: var(--serif); }
.p-specs { margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--hair); display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px 40px; }
.p-spec .k { font-size: 10px; letter-spacing: 0.28em; text-transform: uppercase; color: var(--muted); }
.p-spec .v { font-family: var(--serif); font-size: 18px; font-weight: 500; color: var(--ink); margin-top: 4px; }
@media (max-width: 900px) {
  .product, .product.reverse { grid-template-columns: 1fr; gap: 40px; }
  .product.reverse .p-visual { order: 1; }
  .product.reverse .p-copy { order: 2; }
}

/* Step chips */
.steps { margin-top: 28px; display: flex; gap: 12px; flex-wrap: wrap; }
.chip {
  padding: 8px 14px; border: 1px solid var(--hair); border-radius: 999px;
  font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-2);
  display: inline-flex; align-items: center; gap: 8px;
}
.chip .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--gold); }

/* Divider */
.div-num { display: flex; align-items: baseline; gap: 20px; margin-bottom: 40px; }
.div-num .n { font-family: var(--serif); font-style: italic; color: var(--gold); font-size: 20px; }
.div-num .l { flex: 1; height: 1px; background: var(--hair); }
.div-num .t { font-size: 11px; letter-spacing: 0.3em; text-transform: uppercase; color: var(--muted); }

/* Trio hero image block (Regenew Skin) */
.trio-block {
  margin-top: 24px;
  background: linear-gradient(180deg, var(--paper) 0%, #F3ECD9 100%);
  border: 1px solid var(--hair);
  padding: 48px 32px 24px;
  text-align: center;
  position: relative;
}
.trio-block .lbl { font-size: 10px; letter-spacing: 0.4em; text-transform: uppercase; color: var(--gold); margin-bottom: 20px; }
.trio-block img { max-width: min(880px, 100%); width: 100%; height: auto; display: block; margin: 0 auto; mix-blend-mode: multiply; }
.trio-block .tags { margin-top: 16px; display: flex; justify-content: center; gap: clamp(40px, 8vw, 120px); flex-wrap: wrap; padding-bottom: 8px; }
.trio-block .tags span { font-size: 10px; letter-spacing: 0.28em; text-transform: uppercase; font-weight: 600; }

/* Bottle showcase */
.bottle-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 0; border-top: 1px solid var(--hair); border-bottom: 1px solid var(--hair); }
.bottle-col { padding: 40px 32px; border-right: 1px solid var(--hair); text-align: center; }
.bottle-col:last-child { border-right: none; }
.bottle-col .step { font-family: var(--serif); font-style: italic; color: var(--gold); font-size: 16px; }
.bottle-col h6 { font-family: var(--serif); font-size: 32px; font-weight: 500; margin-top: 6px; color: var(--ink); }
.bottle-col .conc { font-size: 11px; letter-spacing: 0.28em; text-transform: uppercase; color: var(--muted); margin-top: 8px; }
.bottle-col p { margin-top: 16px; font-size: 13px; color: var(--ink-2); line-height: 1.6; }
.bottle-col em { font-style: italic; }
@media (max-width: 900px) { .bottle-row { grid-template-columns: 1fr; } .bottle-col { border-right: none; border-bottom: 1px solid var(--hair); } .bottle-col:last-child { border-bottom: none; } }

/* Case study block */
.case-block { margin-top: 100px; padding-top: 60px; border-top: 1px solid var(--hair); }
.case-block.tight { margin-top: 80px; }
.case-head { display: flex; align-items: baseline; gap: 20px; margin-bottom: 32px; }
.case-head .kicker { font-family: var(--serif); font-style: italic; color: var(--gold); font-size: 20px; }
.case-head .line { flex: 1; height: 1px; background: var(--hair); }
.case-head .desc { font-size: 11px; letter-spacing: 0.3em; text-transform: uppercase; color: var(--muted); }
.calix-case-grid { display: grid; gap: 48px; align-items: stretch; }
.case-copy { padding: 8px 0; display: flex; flex-direction: column; justify-content: center; }
.case-copy .case-idx { font-size: 11px; letter-spacing: 0.3em; text-transform: uppercase; color: var(--muted); }
.case-copy h3 { font-family: var(--serif); font-weight: 400; font-size: clamp(32px, 3.4vw, 46px); line-height: 1.05; color: var(--ink); margin-top: 12px; letter-spacing: -0.015em; }
.case-copy h3 em { font-style: italic; color: var(--gold); }
.case-copy .case-p { margin-top: 20px; font-size: 14px; line-height: 1.75; color: var(--ink-2); }
.case-copy .case-p em { font-style: italic; color: var(--gold); font-family: var(--serif); }
.case-copy .case-en { margin-top: 12px; font-size: 12px; font-style: italic; color: var(--muted); line-height: 1.6; }
.case-specs { margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--hair); display: grid; grid-template-columns: 1fr 1fr; gap: 16px 24px; }
.case-specs .k { font-size: 10px; letter-spacing: 0.24em; text-transform: uppercase; color: var(--muted); }
.case-specs .v { font-family: var(--serif); font-size: 16px; font-weight: 500; color: var(--ink); margin-top: 4px; }
.case-disclaimer { margin-top: 24px; font-size: 10px; font-style: italic; color: var(--muted); line-height: 1.6; opacity: 0.7; }
.case-figure { margin: 0; position: relative; background: var(--paper); border: 1px solid var(--hair); overflow: hidden; }
.case-figure img { width: 100%; height: 100%; object-fit: cover; display: block; }
.case-figure .ba-label { position: absolute; top: 20px; background: rgba(251,247,238,0.92); padding: 8px 16px; font-size: 10px; letter-spacing: 0.3em; text-transform: uppercase; color: var(--gold); border: 1px solid var(--hair); }
.case-figure .ba-label.before { left: 20px; }
.case-figure .ba-label.after { right: 20px; }
.case-figure .divider-line { position: absolute; top: 0; bottom: 0; left: 50%; width: 1px; background: rgba(176,141,87,0.5); }
.case-figure figcaption { position: absolute; bottom: 0; left: 0; right: 0; padding: 14px 20px; background: linear-gradient(180deg, transparent, rgba(36,26,16,0.75)); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; font-size: 10px; letter-spacing: 0.24em; text-transform: uppercase; color: #fff; }
@media (max-width: 900px) { .calix-case-grid { grid-template-columns: 1fr !important; } }

/* Calix dark theme overrides */
.calix-section { background: #0B111C; color: #F0E9D8; }
.calix-section .div-num .n, .calix-section .case-head .kicker { color: #C9A96E; }
.calix-section .div-num .l, .calix-section .case-head .line { background: rgba(201,169,110,0.2); }
.calix-section .div-num .t, .calix-section .case-head .desc { color: rgba(240,233,216,0.55); }
.calix-section .p-visual { background: linear-gradient(180deg, #F6F1E4 0%, #EFE7D2 100%); border: 1px solid rgba(201,169,110,0.25); padding: 24px; }
.calix-section .p-visual img { mix-blend-mode: multiply; max-height: 96%; max-width: 100%; }
.calix-section .p-visual .p-label, .calix-section .p-visual .p-code { color: rgba(30,42,66,0.55); }
.calix-section .p-copy .p-num { color: #C9A96E; }
.calix-section .p-copy .p-cat { color: rgba(240,233,216,0.5); }
.calix-section .p-copy .p-title { color: #F0E9D8; }
.calix-section .p-copy .p-tagline { color: #C9A96E; }
.calix-section .p-copy .p-desc { color: rgba(240,233,216,0.75); }
.calix-section .p-copy .p-desc em { color: #C9A96E; }
.calix-section .p-copy .p-desc.muted { color: rgba(240,233,216,0.5); }
.calix-section .chip { border: 1px solid rgba(201,169,110,0.3); color: #F0E9D8; }
.calix-section .chip .dot { background: #C9A96E; }
.calix-section .p-specs { border-top: 1px solid rgba(201,169,110,0.2); }
.calix-section .p-specs .k { color: rgba(240,233,216,0.5); }
.calix-section .p-specs .v { color: #F0E9D8; }
.calix-section .case-block { border-top: 1px solid rgba(201,169,110,0.2); }
.calix-section .case-copy .case-idx, .calix-section .case-specs .k { color: rgba(240,233,216,0.5); }
.calix-section .case-copy h3 { color: #F0E9D8; }
.calix-section .case-copy h3 em { color: #C9A96E; }
.calix-section .case-copy .case-p { color: rgba(240,233,216,0.75); }
.calix-section .case-copy .case-p em { color: #C9A96E; }
.calix-section .case-copy .case-en { color: rgba(240,233,216,0.5); }
.calix-section .case-specs { border-top: 1px solid rgba(201,169,110,0.2); }
.calix-section .case-specs .v { color: #F0E9D8; }
.calix-section .case-disclaimer { color: rgba(240,233,216,0.4); }
.calix-section .case-figure { background: #0E1826; border: 1px solid rgba(201,169,110,0.2); }
.calix-section .case-figure .ba-label { background: rgba(11,17,28,0.85); color: #C9A96E; border: 1px solid rgba(201,169,110,0.3); }
.calix-section .case-figure .divider-line { background: rgba(201,169,110,0.35); }
.calix-section .case-figure figcaption { background: linear-gradient(180deg, transparent, rgba(11,17,28,0.9)); color: rgba(240,233,216,0.7); }

/* BelleGen (green) theme */
.bellegen-section { background: linear-gradient(180deg, #DCE1CE 0%, #C6D0B0 100%); }
.bellegen-section .p-visual { background: transparent; border: none; }
.bellegen-section .p-copy .p-title { color: #2E3A28; }
.bellegen-section .p-copy .p-title em { color: #6B7C4A; }
.bellegen-section .p-copy .p-tagline { color: #4F5D3A; }
.bellegen-section .p-copy .p-desc { color: #3F4A32; }
.bellegen-section .p-copy .p-desc em { color: #6B7C4A; }
.bellegen-section .p-copy .p-desc.muted { color: #5A6449; }
.bellegen-section .chip { border-color: rgba(60,74,50,0.25); color: #3F4A32; }
.bellegen-section .chip .dot { background: #6B7C4A; }
.bellegen-section .p-specs { border-top: 1px solid rgba(60,74,50,0.2); }
.bellegen-section .p-specs .k { color: #5A6449; }
.bellegen-section .p-specs .v { color: #2E3A28; }
.bellegen-section .case-block { border-top: 1px solid rgba(60,74,50,0.25); }
.bellegen-section .case-head .kicker { color: #6B7C4A; }
.bellegen-section .case-head .line { background: rgba(60,74,50,0.25); }
.bellegen-section .case-head .desc { color: #5A6449; }
.bellegen-section .case-copy .case-idx { color: #5A6449; }
.bellegen-section .case-copy h3 { color: #2E3A28; }
.bellegen-section .case-copy h3 em { color: #6B7C4A; }
.bellegen-section .case-copy h3 .x { font-size: 0.7em; color: #5A6449; }
.bellegen-section .case-copy .case-p { color: #3F4A32; }
.bellegen-section .case-copy .case-p em { color: #6B7C4A; }
.bellegen-section .case-copy .case-en { color: #5A6449; }
.bellegen-section .case-specs { border-top: 1px solid rgba(60,74,50,0.2); }
.bellegen-section .case-specs .k { color: #5A6449; }
.bellegen-section .case-specs .v { color: #2E3A28; }
.bellegen-section .case-disclaimer { color: #5A6449; opacity: 0.75; }
.bellegen-section .case-figure { background: #EFEBDD; border: 1px solid rgba(60,74,50,0.25); }
.bellegen-section .case-figure .ba-label { background: rgba(239,235,221,0.92); color: #6B7C4A; border: 1px solid rgba(60,74,50,0.25); }
.bellegen-section .case-figure .divider-line { background: rgba(107,124,74,0.5); }
.bellegen-section .case-figure figcaption { background: linear-gradient(180deg, transparent, rgba(46,58,40,0.85)); color: #F0EBD8; }

/* Before/after grid (hair section) */
.ba-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 32px; }
.ba-grid figure { position: relative; background: var(--paper); border: 1px solid var(--hair); }
.ba-grid figure img { width: 100%; height: 100%; object-fit: cover; display: block; }
.ba-grid figure figcaption { position: absolute; top: 16px; left: 16px; background: rgba(245,239,228,0.88); padding: 6px 12px; font-size: 10px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--ink); }
.ba-grid .split-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 2px; background: var(--hair); }
@media (max-width: 640px) { .ba-grid { grid-template-columns: 1fr; } }

/* Clinical grid */
.clin { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; margin-top: 40px; }
.clin.clin-2 { grid-template-columns: repeat(2, 1fr); }
.clin .cell { border-top: 1px solid var(--hair); padding-top: 28px; }
.clin .cell .n { font-family: var(--serif); font-size: 76px; font-weight: 400; color: var(--gold); line-height: 1; letter-spacing: -0.02em; }
.clin .cell .n .u { font-size: 24px; margin-left: 4px; color: var(--gold); }
.clin .cell .k { margin-top: 8px; font-size: 11px; letter-spacing: 0.24em; text-transform: uppercase; color: var(--muted); }
.clin .cell .d { margin-top: 6px; font-size: 14px; color: var(--ink-2); }
@media (max-width: 900px) { .clin { grid-template-columns: repeat(2, 1fr); } }

/* Science cards */
.sci { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 40px; }
.sci .card { background: var(--paper); border: 1px solid var(--hair); padding: 36px 28px 32px; display: flex; flex-direction: column; min-height: 340px; position: relative; }
.sci .card .tag { font-family: var(--serif); font-style: italic; color: var(--gold); font-size: 18px; }
.sci .card h4 { font-family: var(--serif); font-size: 40px; font-weight: 400; margin-top: 4px; color: var(--ink); letter-spacing: -0.01em; }
.sci .card .full { margin-top: 6px; font-size: 11px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--muted); }
.sci .card p { margin-top: 16px; font-size: 13.5px; line-height: 1.6; color: var(--ink-2); }
.sci .card .foot { margin-top: auto; padding-top: 20px; border-top: 1px solid var(--hair); font-size: 11px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--muted); }
@media (max-width: 900px) { .sci { grid-template-columns: repeat(2, 1fr); } }

/* Advantage list */
.adv { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 40px; border-top: 1px solid var(--hair); }
.adv .item { padding: 40px 32px 40px 0; border-bottom: 1px solid var(--hair); border-right: 1px solid var(--hair); }
.adv .item:nth-child(3n) { border-right: none; padding-right: 0; }
.adv .item:nth-child(n+4) { padding-left: 32px; }
.adv .item .num { font-family: var(--serif); font-style: italic; color: var(--gold); font-size: 22px; }
.adv .item .item-cat { font-size: 11px; letter-spacing: 0.28em; text-transform: uppercase; color: var(--muted); margin-top: 8px; }
.adv .item h5 { font-family: var(--serif); font-size: 26px; font-weight: 500; margin-top: 10px; color: var(--ink); letter-spacing: -0.01em; }
.adv .item p { margin-top: 14px; font-size: 14px; line-height: 1.7; color: var(--ink-2); }
@media (max-width: 900px) { .adv { grid-template-columns: 1fr; } .adv .item { border-right: none; padding: 32px 0 !important; } }

/* Distribution timeline */
.dist { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 40px; }
.dist .step { background: var(--paper); border: 1px solid var(--hair); padding: 32px 28px; position: relative; }
.dist .step .st { font-family: var(--serif); font-style: italic; color: var(--gold); font-size: 18px; }
.dist .step h5 { font-family: var(--serif); font-size: 24px; font-weight: 500; margin-top: 8px; }
.dist .step p { margin-top: 12px; font-size: 13.5px; line-height: 1.6; color: var(--ink-2); }
@media (max-width: 900px) { .dist { grid-template-columns: 1fr 1fr; } }

/* Partner terms */
.terms { margin-top: 48px; display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.terms .col h6 { font-size: 11px; letter-spacing: 0.28em; text-transform: uppercase; color: var(--gold); margin-bottom: 20px; }
.terms .col li { padding: 16px 0; border-bottom: 1px solid var(--hair); display: flex; justify-content: space-between; gap: 24px; font-size: 14px; }
.terms .col li .k { color: var(--ink-2); }
.terms .col li .v { font-family: var(--serif); font-weight: 500; color: var(--ink); }
@media (max-width: 900px) { .terms { grid-template-columns: 1fr; } }

/* Patent list */
.patent-list { margin-top: 40px; border-top: 1px solid var(--hair); }
.patent { display: grid; grid-template-columns: 180px 1fr 200px; gap: 40px; padding: 32px 0; border-bottom: 1px solid var(--hair); align-items: baseline; }
.patent .p-idx { font-family: var(--serif); font-style: italic; color: var(--gold); font-size: 20px; }
.patent .p-cat { margin-top: 6px; font-size: 10px; letter-spacing: 0.28em; text-transform: uppercase; color: var(--muted); }
.patent .p-title-ko { font-family: var(--serif); font-size: 22px; font-weight: 500; color: var(--ink); line-height: 1.35; letter-spacing: -0.01em; }
.patent .p-title-en { margin-top: 8px; font-size: 13px; color: var(--muted); font-style: italic; line-height: 1.5; }
.patent .p-no-lbl { font-size: 10px; letter-spacing: 0.28em; text-transform: uppercase; color: var(--muted); }
.patent .p-no { font-family: var(--serif); font-size: 18px; font-weight: 500; color: var(--gold); margin-top: 4px; letter-spacing: 0.02em; }
@media (max-width: 900px) { .patent { grid-template-columns: 1fr; gap: 12px; } }

/* Cert grid */
.cert-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; margin-top: 40px; }
.cert-card { background: var(--paper); border: 1px solid var(--hair); display: flex; flex-direction: column; transition: transform 0.4s ease, box-shadow 0.4s ease; }
.cert-card:hover { transform: translateY(-3px); box-shadow: 0 16px 32px rgba(36,26,16,0.10); }
.cert-img { aspect-ratio: 3/4; background: #fff; overflow: hidden; border-bottom: 1px solid var(--hair); display: flex; align-items: center; justify-content: center; }
.cert-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.cert-card figcaption { padding: 18px 16px 20px; }
.cert-card .cert-num { font-family: var(--serif); font-style: italic; color: var(--gold); font-size: 14px; }
.cert-card .cert-name { font-family: var(--serif); font-size: 16px; font-weight: 500; color: var(--ink); margin-top: 4px; line-height: 1.3; letter-spacing: -0.005em; }
.cert-card .cert-en { margin-top: 4px; font-size: 11px; color: var(--muted); font-style: italic; line-height: 1.4; }
.cert-card .cert-meta { margin-top: 10px; padding-top: 10px; border-top: 1px solid var(--hair); font-size: 10px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); }
@media (max-width: 1100px) { .cert-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 700px)  { .cert-grid { grid-template-columns: repeat(2, 1fr); } }

/* Story quote */
.quote { padding: 100px 80px; background: var(--paper); border-top: 1px solid var(--hair); border-bottom: 1px solid var(--hair); text-align: center; }
.quote blockquote { font-family: var(--serif); font-weight: 300; font-size: clamp(32px, 4vw, 54px); line-height: 1.2; color: var(--ink); letter-spacing: -0.01em; max-width: 900px; margin: 0 auto; }
.quote blockquote em { font-style: italic; color: var(--gold); }
.quote cite { display: block; margin-top: 32px; font-family: var(--sans); font-style: normal; font-size: 11px; letter-spacing: 0.3em; text-transform: uppercase; color: var(--muted); }
@media (max-width: 900px) { .quote { padding: 60px 24px; } }

/* Marquee tech strip */
.tech-strip { padding: 24px 0; border-top: 1px solid var(--hair); border-bottom: 1px solid var(--hair); overflow: hidden; margin-top: 60px; }
.tech-strip .track { display: flex; gap: 60px; align-items: center; animation: scroll 40s linear infinite; font-family: var(--serif); font-size: 40px; font-weight: 400; color: var(--ink); white-space: nowrap; width: max-content; }
.tech-strip .track em { font-style: italic; color: var(--gold); margin: 0 20px; font-size: 30px; }
@keyframes scroll { from { transform: translateX(0); } to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) { .tech-strip .track { animation: none; } }

/* CTA + Footer */
.cta { background: var(--accent); color: var(--paper); padding: 140px 0; }
.cta h2 { font-family: var(--serif); font-weight: 300; font-size: clamp(52px, 7vw, 108px); line-height: 0.98; color: var(--paper); letter-spacing: -0.02em; }
.cta h2 em { font-style: italic; color: var(--gold); }
.cta .btns { margin-top: 60px; display: flex; gap: 20px; flex-wrap: wrap; }
.btn {
  padding: 20px 36px; border: 1px solid var(--gold);
  font-size: 11px; letter-spacing: 0.3em; text-transform: uppercase;
  text-decoration: none; color: var(--paper);
  display: inline-flex; align-items: center; gap: 12px;
  transition: all 0.3s;
}
.btn:hover { background: var(--gold); color: var(--accent); }
.btn.solid { background: var(--gold); color: var(--accent); }
.btn.solid:hover { background: transparent; color: var(--gold); }
@media (max-width: 900px) { .cta { padding: 90px 0; } }

footer { background: var(--accent); padding: 60px 0 40px; color: rgba(251,247,238,0.7); border-top: 1px solid rgba(201,169,110,0.25); }
footer .foot-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
footer .foot-grid h6 { color: var(--gold); font-size: 11px; letter-spacing: 0.28em; text-transform: uppercase; margin-bottom: 16px; }
footer .foot-grid li { padding: 6px 0; font-size: 13px; }
footer .fine { margin-top: 60px; padding-top: 24px; border-top: 1px solid rgba(201,169,110,0.2); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; }
.foot-brand { margin-bottom: 24px; padding: 20px 22px; background: rgba(240,233,216,0.04); border: 1px solid rgba(201,169,110,0.18); display: inline-block; }
.foot-brand img { height: 68px; width: auto; display: block; mix-blend-mode: screen; filter: brightness(1.15) contrast(1.1); margin: 0 auto; }
.foot-brand .foot-brand-tag { font-size: 9px; letter-spacing: 0.32em; text-transform: uppercase; color: var(--gold); margin-top: 10px; text-align: center; }
footer .foot-legal { font-size: 13px; line-height: 1.7; max-width: 360px; }
footer .foot-legal b { color: var(--paper); }
@media (max-width: 900px) { footer .foot-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { footer .foot-grid { grid-template-columns: 1fr; } footer .fine { flex-direction: column; } }

/* Skip link for a11y */
.skip-link {
  position: absolute; left: -9999px; top: auto; background: var(--ink); color: var(--paper);
  padding: 12px 20px; z-index: 999; font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase;
}
.skip-link:focus { left: 16px; top: 16px; }