/* ============================================================
   Verisomai · Website design system
   ============================================================ */

@font-face {
  font-family: 'Instrument Sans';
  src: url('../fonts/InstrumentSans-Regular.ttf') format('truetype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Instrument Sans';
  src: url('../fonts/InstrumentSans-Bold.ttf') format('truetype');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'IBM Plex Mono';
  src: url('../fonts/IBMPlexMono-Regular.ttf') format('truetype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'IBM Plex Mono';
  src: url('../fonts/IBMPlexMono-Bold.ttf') format('truetype');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

:root {
  --bg: #F6F5F1;
  --bg2: #FFFFFF;
  --ink: #17191E;
  --muted: #5B616E;
  --rule: #E5E1D8;
  --accent: #C2410C;
  --accent-strong: #D9480F;
  --accent-soft: #FBEADD;
  --accent2: #1F5172;
  --accent2-soft: #E8EFF4;
  --dark: #101419;
  --dark2: #171D24;
  --dark3: #1E2630;
  --dark-ink: #F1EFEA;
  --dark-muted: #99A2AD;
  --dark-rule: #28303A;
  --on-dark-accent: #FF9E5E;
  --radius: 14px;
  --radius-sm: 10px;
  --font-sans: 'Instrument Sans', -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'IBM Plex Mono', 'SFMono-Regular', Consolas, Menlo, monospace;
  --shadow: 0 1px 2px rgba(23, 25, 30, .04), 0 8px 24px rgba(23, 25, 30, .06);
  --shadow-lift: 0 2px 4px rgba(23, 25, 30, .06), 0 16px 40px rgba(23, 25, 30, .10);
  --container: 1180px;
}

/* ---------- base ---------- */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }
::selection { background: var(--accent-soft); color: var(--accent); }

.container { max-width: var(--container); margin: 0 auto; padding: 0 28px; }
.mono { font-family: var(--font-mono); }

/* ---------- typography helpers ---------- */
.kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.kicker::before { content: ''; width: 26px; height: 2px; background: var(--accent); }
.dark .kicker { color: var(--on-dark-accent); }
.dark .kicker::before { background: var(--on-dark-accent); }

.h2 {
  font-size: clamp(26px, 3.6vw, 38px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: .01em;
  margin-bottom: 14px;
}
.section-sub { color: var(--muted); max-width: 640px; font-size: 16.5px; }
.dark .section-sub { color: var(--dark-muted); }

.section { padding: 84px 0; }
.section.tight { padding: 60px 0; }
.section-head { margin-bottom: 44px; }
.section-head.center { text-align: center; }
.section-head.center .kicker { justify-content: center; }
.section-head.center .section-sub { margin: 0 auto; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 700;
  border: 1.5px solid transparent;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease, color .15s ease, border-color .15s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--accent-strong); color: #fff; box-shadow: 0 6px 18px rgba(217, 72, 15, .25); }
.btn-primary:hover { background: #B93E0B; }
.btn-ghost { border-color: var(--rule); color: var(--ink); background: var(--bg2); }
.btn-ghost:hover { border-color: var(--ink); }
.dark .btn-ghost { background: transparent; border-color: var(--dark-rule); color: var(--dark-ink); }
.dark .btn-ghost:hover { border-color: var(--dark-muted); }
.btn-ghost-accent { border-color: rgba(255, 158, 94, .5); color: var(--on-dark-accent); background: transparent; }
.btn-ghost-accent:hover { border-color: var(--on-dark-accent); }
.btn .arrow { font-family: var(--font-mono); font-weight: 400; }
.btn-sm { padding: 9px 18px; font-size: 13.5px; }

/* text link */
.tlink {
  font-weight: 700;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.tlink .arrow { font-family: var(--font-mono); font-weight: 400; }
.tlink:hover { text-decoration: underline; text-underline-offset: 4px; }

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(246, 245, 241, .92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--rule);
}
.header-inner { display: flex; align-items: center; gap: 36px; height: 68px; }
.brand { display: flex; align-items: center; gap: 12px; margin-right: auto; }
.brand img { height: 34px; width: auto; display: block; }
.site-footer .brand img { height: 30px; }
/* Single site-wide logo (light and dark variants) */

.main-nav { display: flex; align-items: center; gap: 28px; }
.main-nav a {
  font-size: 15px; font-weight: 500; color: var(--muted);
  padding: 6px 2px; border-bottom: 2px solid transparent;
  transition: color .15s;
}
.main-nav a:hover { color: var(--ink); }
.main-nav a.active { color: var(--ink); font-weight: 700; border-bottom-color: var(--accent); }

.header-actions { display: flex; align-items: center; gap: 12px; }

.menu-btn {
  display: none;
  width: 40px; height: 40px;
  border: 1.5px solid var(--rule); border-radius: 10px;
  background: var(--bg2);
  flex-direction: column; align-items: center; justify-content: center; gap: 5px;
}
.menu-btn span { display: block; width: 18px; height: 2px; background: var(--ink); border-radius: 2px; }

/* ---------- hero ---------- */
.hero {
  position: relative;
  background: var(--dark);
  color: var(--dark-ink);
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  background-image: url('../../assets/img/hero_2560x1440.jpg');
  background-size: cover;
  background-position: center 40%;
  opacity: .5;
}
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(16,20,25,.96) 0%, rgba(16,20,25,.82) 46%, rgba(16,20,25,.42) 100%);
}
.hero-inner { position: relative; padding: 108px 0 84px; max-width: 780px; }
.hero .kicker { color: var(--on-dark-accent); }
.hero h1 {
  font-size: clamp(34px, 5.4vw, 58px);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: .01em;
  margin-bottom: 22px;
}
.hero h1 em { font-style: normal; color: var(--on-dark-accent); }
.hero-sub { color: var(--dark-muted); font-size: 17.5px; max-width: 620px; margin-bottom: 36px; }
.hero-sub strong { color: var(--dark-ink); font-weight: 600; }
.hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; }

.hero-stats {
  position: relative;
  border-top: 1px solid var(--dark-rule);
  background: rgba(16, 20, 25, .55);
  backdrop-filter: blur(6px);
}
.hero-stats-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  padding: 30px 0;
}
.hstat .num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 3vw, 34px);
  font-weight: 700;
  color: var(--on-dark-accent);
  line-height: 1.1;
}
.hstat .lbl { color: var(--dark-muted); font-size: 13.5px; margin-top: 6px; }

/* page hero (light subpages) */
.page-hero {
  background: var(--dark);
  color: var(--dark-ink);
  padding: 76px 0 60px;
  position: relative;
  overflow: hidden;
}
.page-hero::after {
  content: '';
  position: absolute; right: -120px; top: -120px;
  width: 420px; height: 420px; border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 158, 94, .14) 0%, transparent 70%);
  pointer-events: none;
}
.page-hero h1 { font-size: clamp(30px, 4.4vw, 46px); font-weight: 700; line-height: 1.22; margin-bottom: 16px; }
.page-hero .section-sub { color: var(--dark-muted); max-width: 660px; }
.page-hero .kicker { color: var(--on-dark-accent); }

/* ---------- cards & grids ---------- */
.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--bg2);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  transition: transform .18s ease, box-shadow .18s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lift); }
.card-icon {
  width: 44px; height: 44px; border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent);
  display: grid; place-items: center;
  margin-bottom: 18px;
  font-family: var(--font-mono); font-weight: 700; font-size: 15px;
}
.card h3 { font-size: 18.5px; font-weight: 700; margin-bottom: 10px; }
.card p { color: var(--muted); font-size: 15px; }
.card p strong { color: var(--ink); font-weight: 600; }

/* dark band */
.band { background: var(--dark); color: var(--dark-ink); position: relative; overflow: hidden; }
.band::before {
  content: '';
  position: absolute; left: -140px; bottom: -180px;
  width: 460px; height: 460px; border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 158, 94, .10) 0%, transparent 70%);
}
.band-inner { position: relative; padding: 72px 0; display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.band h2 { font-size: clamp(24px, 3.2vw, 34px); font-weight: 700; margin-bottom: 12px; }
.band p { color: var(--dark-muted); max-width: 560px; }

/* ---------- dataset cards ---------- */
.ds-card {
  display: flex; flex-direction: column;
  background: var(--bg2);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 0;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.ds-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lift); border-color: #D8D2C6; }
/* Card image: real photo or code placeholder */
.ds-card-ph { position: relative; height: 168px; overflow: hidden; background: #171D24; flex-shrink: 0; }
.ds-card-ph img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .35s ease; }
.ds-card:hover .ds-card-ph img { transform: scale(1.04); }
.ds-card-ph .ph-cat {
  position: absolute; left: 12px; bottom: 10px;
  font-family: var(--font-mono); font-size: 10.5px; font-weight: 700; letter-spacing: .08em;
  color: #fff; background: rgba(13, 16, 20, .62);
  padding: 4px 10px; border-radius: 999px;
  backdrop-filter: blur(4px);
}
.ds-card-ph.none {
  display: flex; align-items: center; justify-content: center;
  background:
    repeating-linear-gradient(-45deg, rgba(255,255,255,.035) 0 12px, transparent 12px 24px),
    #171D24;
}
.ds-card-ph.none .ph-code {
  font-family: var(--font-mono); font-size: 15px; font-weight: 700;
  letter-spacing: .18em; color: rgba(255, 255, 255, .38);
}
.ds-card-bd { display: flex; flex-direction: column; flex: 1; padding: 20px 24px 24px; }
.ds-card-top { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin-bottom: 14px; }
.ds-code { font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .1em; color: var(--muted); }
/* Ready-stock / custom status badge */
.ds-status {
  font-family: var(--font-mono); font-size: 10.5px; font-weight: 700; letter-spacing: .05em;
  padding: 3px 9px; border-radius: 999px; white-space: nowrap;
}
.ds-status.ok { background: rgba(22, 163, 74, .12); color: #15803D; }
.ds-status.cu { background: rgba(37, 99, 235, .10); color: #2563EB; }
.ds-badge {
  font-family: var(--font-mono); font-size: 11px; font-weight: 700;
  letter-spacing: .06em;
  background: var(--accent-soft); color: var(--accent);
  padding: 4px 10px; border-radius: 999px;
  white-space: nowrap;
}
.ds-badge.blue { background: var(--accent2-soft); color: var(--accent2); }
.ds-card h3 { font-size: 19px; font-weight: 700; margin-bottom: 8px; line-height: 1.35; }
.ds-card .desc { color: var(--muted); font-size: 14.5px; margin-bottom: 20px; flex: 1; }
/* Card metrics: one value/label pair per row (value left, label right) —
   keeps long English values and labels from colliding */
.ds-metrics { display: grid; gap: 9px; border-top: 1px solid var(--rule); padding-top: 16px; margin-bottom: 18px; }
.ds-metric { display: flex; align-items: baseline; justify-content: space-between; gap: 14px; }
.ds-metric .v { font-family: var(--font-mono); font-size: 15.5px; font-weight: 700; color: var(--ink); white-space: nowrap; }
.ds-metric .l { font-size: 11.5px; color: var(--muted); text-align: right; }
.ds-card-links { display: flex; gap: 18px; }
.ds-card-links .tlink { font-size: 14px; }

/* ---------- market ---------- */
.filter-row { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; margin-bottom: 34px; }
.filter-row .filter-bar { margin-bottom: 0; }
.filter-bar { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 34px; }
.chip {
  font-size: 14px; font-weight: 600;
  border: 1.5px solid var(--rule);
  background: var(--bg2);
  color: var(--muted);
  border-radius: 999px;
  padding: 8px 18px;
  transition: all .15s;
}
.chip:hover { border-color: var(--accent); color: var(--accent); }
.chip.active { background: var(--ink); border-color: var(--ink); color: #fff; }
.market-count { font-family: var(--font-mono); font-size: 13px; color: var(--muted); margin-left: auto; align-self: center; }

/* ---------- scenario cards ---------- */
.scn-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.scn-card {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg2);
  border: 1px solid var(--rule);
  box-shadow: var(--shadow);
  transition: transform .18s ease, box-shadow .18s ease;
  display: flex; flex-direction: column;
}
.scn-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lift); }
.scn-card .ph { aspect-ratio: 4/3; overflow: hidden; position: relative; }
.scn-card .ph img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.scn-card:hover .ph img { transform: scale(1.05); }
.scn-card .tag {
  position: absolute; top: 12px; left: 12px;
  font-family: var(--font-mono); font-size: 11px; font-weight: 700;
  background: rgba(16, 20, 25, .78); color: #fff;
  padding: 4px 10px; border-radius: 6px;
  backdrop-filter: blur(4px);
}
.scn-card .bd { padding: 18px 18px 20px; flex: 1; display: flex; flex-direction: column; }
.scn-card h3 { font-size: 16.5px; font-weight: 700; margin-bottom: 6px; }
.scn-card p { font-size: 13.5px; color: var(--muted); flex: 1; }
.scn-card .stock { margin-top: 12px; font-family: var(--font-mono); font-size: 12.5px; font-weight: 700; color: var(--accent); }

/* scenario detail rows (scenarios page) */
.scn-row { display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center; padding: 44px 0; border-top: 1px solid var(--rule); }
.scn-row:first-of-type { border-top: none; padding-top: 0; }
.scn-row.flip .scn-media { order: 2; }
.scn-media { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-lift); border: 1px solid var(--rule); }
.scn-media img { width: 100%; display: block; }
.scn-row .scn-letter {
  font-family: var(--font-mono); font-weight: 700; font-size: 13px;
  color: var(--accent); letter-spacing: .12em;
  display: flex; align-items: center; gap: 10px; margin-bottom: 12px;
}
.scn-row .scn-letter::after { content: ''; flex: 1; height: 1px; background: var(--rule); }
.scn-row h3 { font-size: 24px; font-weight: 700; margin-bottom: 12px; }
.scn-row .scn-desc { color: var(--muted); margin-bottom: 18px; }
.scn-row ul { display: flex; flex-direction: column; gap: 9px; }
.scn-row ul li { display: flex; gap: 10px; font-size: 14.5px; color: var(--ink); }
.scn-row ul li::before { content: '—'; color: var(--accent); font-weight: 700; flex-shrink: 0; }

/* ---------- methodology / principles ---------- */
.principle { border-left: 3px solid var(--accent); padding-left: 22px; }
.principle .no { font-family: var(--font-mono); font-size: 12px; font-weight: 700; color: var(--accent); letter-spacing: .12em; margin-bottom: 8px; }
.principle h3 { font-size: 19px; font-weight: 700; margin-bottom: 8px; }
.principle p { color: var(--muted); font-size: 15px; }

/* ---------- model support: paradigm bullet list ---------- */
.md-list { margin: 14px 0 0; padding: 0; list-style: none; }
.md-list li { position: relative; padding-left: 20px; margin-bottom: 8px; color: var(--muted); font-size: 14.5px; line-height: 1.65; }
.md-list li::before { content: '▸'; position: absolute; left: 0; top: 0; color: var(--accent); font-size: 13px; }
.md-list li:last-child { margin-bottom: 0; }

/* ---------- compliance ---------- */
.comp-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.comp-panel { background: var(--bg2); border: 1px solid var(--rule); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow); }
.comp-panel .panel-kicker { font-family: var(--font-mono); font-size: 11.5px; font-weight: 700; letter-spacing: .12em; color: var(--accent2); text-transform: uppercase; margin-bottom: 6px; }
.comp-panel h3 { font-size: 20px; font-weight: 700; margin-bottom: 18px; }
.comp-list li {
  display: flex; gap: 12px; align-items: flex-start;
  padding: 11px 0; border-bottom: 1px dashed var(--rule);
  font-size: 14.5px;
}
.comp-list li:last-child { border-bottom: none; }
.comp-list li .tick {
  width: 20px; height: 20px; border-radius: 6px; flex-shrink: 0; margin-top: 2px;
  background: var(--accent2-soft); color: var(--accent2);
  display: grid; place-items: center;
  font-size: 11px; font-weight: 700;
}
.comp-list li strong { font-weight: 700; }
.comp-list li span { color: var(--muted); }

/* ---------- process timeline ---------- */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; counter-reset: step; }
.step {
  background: var(--bg2); border: 1px solid var(--rule); border-radius: var(--radius);
  padding: 22px 20px; box-shadow: var(--shadow);
  position: relative;
}
.step .no {
  font-family: var(--font-mono); font-size: 26px; font-weight: 700;
  color: var(--accent); opacity: .35; line-height: 1; margin-bottom: 12px;
}
.step h4 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.step p { font-size: 13px; color: var(--muted); line-height: 1.6; }
.step .cycle {
  display: inline-block; margin-top: 10px;
  font-family: var(--font-mono); font-size: 11px; color: var(--accent2);
  background: var(--accent2-soft); border-radius: 6px; padding: 2px 8px;
}

/* ---------- equipment table ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--rule); border-radius: var(--radius); background: var(--bg2); box-shadow: var(--shadow); }
table.spec { width: 100%; border-collapse: collapse; min-width: 680px; }
table.spec th {
  text-align: left; font-size: 12px; font-weight: 700; letter-spacing: .08em;
  text-transform: uppercase; color: var(--muted);
  background: var(--bg);
  padding: 14px 20px;
  border-bottom: 1px solid var(--rule);
  font-family: var(--font-mono);
}
table.spec td { padding: 15px 20px; border-bottom: 1px solid var(--rule); font-size: 14.5px; vertical-align: top; }
table.spec tr:last-child td { border-bottom: none; }
table.spec td:first-child { white-space: nowrap; font-family: var(--font-mono); font-size: 13px; color: var(--accent); font-weight: 700; }
table.spec td strong { display: block; margin-bottom: 2px; }
table.spec td span { color: var(--muted); font-size: 13.5px; }

/* ---------- dataset detail page ---------- */
.breadcrumb {
  display: flex; align-items: center; flex-wrap: wrap; gap: 8px;
  padding: 20px 0 0; font-size: 13.5px; color: var(--muted);
}
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { font-family: var(--font-mono); color: var(--rule); }
.breadcrumb .cur { color: var(--ink); font-weight: 600; }

.ds-hero { padding: 34px 0 44px; }
.ds-hero-grid { display: grid; grid-template-columns: 1fr 320px; gap: 44px; align-items: start; }
.ds-hero h1 { font-size: clamp(28px, 4vw, 42px); font-weight: 700; line-height: 1.25; margin: 10px 0 14px; }
.ds-hero .lede { color: var(--muted); font-size: 16.5px; max-width: 640px; }
.ds-metric-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 28px; }
.ds-metric-card {
  background: var(--bg2); border: 1px solid var(--rule); border-radius: var(--radius-sm);
  padding: 18px 20px; box-shadow: var(--shadow);
}
.ds-metric-card .v { font-family: var(--font-mono); font-size: 24px; font-weight: 700; color: var(--accent); line-height: 1.15; }
.ds-metric-card .l { font-size: 12.5px; color: var(--muted); margin-top: 5px; }

.meta-panel {
  background: var(--dark); color: var(--dark-ink);
  border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow-lift);
}
.meta-panel .mp-title { font-family: var(--font-mono); font-size: 11px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--on-dark-accent); margin-bottom: 16px; }
.meta-row { display: flex; justify-content: space-between; gap: 14px; padding: 10px 0; border-bottom: 1px solid var(--dark-rule); font-size: 13.5px; }
.meta-row:last-of-type { border-bottom: none; }
.meta-row .k { color: var(--dark-muted); }
.meta-row .v { font-weight: 600; text-align: right; }
.meta-panel .btn { width: 100%; margin-top: 18px; }
.meta-panel .btn + .btn { margin-top: 10px; }
.meta-note { font-size: 12px; color: var(--dark-muted); margin-top: 14px; line-height: 1.6; }

.anchor-tabs {
  position: sticky; top: 68px; z-index: 90;
  background: rgba(246, 245, 241, .94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--rule);
}
.anchor-tabs-inner { display: flex; gap: 6px; overflow-x: auto; padding: 10px 0; scrollbar-width: none; }
.anchor-tabs-inner::-webkit-scrollbar { display: none; }
.anchor-tabs a {
  font-size: 14px; font-weight: 600; color: var(--muted);
  padding: 8px 16px; border-radius: 999px; white-space: nowrap;
  transition: all .15s;
}
.anchor-tabs a:hover { color: var(--ink); background: var(--bg2); }
.anchor-tabs a.active { background: var(--ink); color: #fff; }

/* Offset anchor jumps for the sticky header */
section[id], .scn-row[id] { scroll-margin-top: 92px; }
.ds-section[id] { scroll-margin-top: 140px; }

.ds-section { padding: 60px 0; border-top: 1px solid var(--rule); }
.ds-section:first-of-type { border-top: none; }
.ds-section h2 { font-size: clamp(22px, 3vw, 30px); font-weight: 700; margin-bottom: 10px; }
.ds-section .sec-sub { color: var(--muted); margin-bottom: 34px; max-width: 640px; }

.use-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.use-chips span {
  font-size: 13.5px; font-weight: 600;
  background: var(--bg2); border: 1px solid var(--rule);
  border-radius: 999px; padding: 7px 16px; color: var(--ink);
}

.chart-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.chart-figure {
  background: var(--bg2); border: 1px solid var(--rule); border-radius: var(--radius);
  padding: 24px; box-shadow: var(--shadow); margin: 0;
}
.chart-figure figcaption { font-size: 14.5px; font-weight: 700; margin-bottom: 4px; }
.chart-figure .chart-note { font-size: 12px; color: var(--muted); margin-bottom: 14px; }
.chart-figure .chart-box { width: 100%; min-height: 300px; }

.pipeline { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 30px 0; }
.pipe-step { background: var(--bg2); border: 1px solid var(--rule); border-radius: var(--radius-sm); padding: 22px; box-shadow: var(--shadow); position: relative; }
.pipe-step .no { font-family: var(--font-mono); font-size: 12px; font-weight: 700; color: var(--accent); letter-spacing: .1em; margin-bottom: 8px; }
.pipe-step h4 { font-size: 16.5px; font-weight: 700; margin-bottom: 8px; }
.pipe-step p { font-size: 13.5px; color: var(--muted); }
.pipe-arrow { position: absolute; right: -13px; top: 50%; transform: translateY(-50%); color: var(--accent); font-family: var(--font-mono); z-index: 2; font-size: 15px; }

/* code block */
.code-block {
  background: var(--dark); border-radius: var(--radius-sm);
  padding: 24px 26px; overflow-x: auto;
  font-family: var(--font-mono); font-size: 13px; line-height: 1.75;
  color: #C8D2DC; box-shadow: var(--shadow-lift);
}
.code-block .ck { color: var(--on-dark-accent); }
.code-block .cs { color: #8FA3B5; }

/* frame preview */
.frame-row { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.frame-fig { background: var(--bg2); border: 1px solid var(--rule); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); margin: 0; }
.frame-fig figcaption { display: flex; justify-content: space-between; font-family: var(--font-mono); font-size: 12px; color: var(--muted); margin-bottom: 12px; }
.frame-fig figcaption .t { color: var(--accent); font-weight: 700; }
.frame-fig svg { width: 100%; height: auto; border-radius: 8px; display: block; }

/* delivery cards */
.deliver-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.deliver-card { background: var(--bg2); border: 1px solid var(--rule); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow); }
.deliver-card .no { font-family: var(--font-mono); font-size: 12px; font-weight: 700; color: var(--accent); letter-spacing: .1em; margin-bottom: 10px; }
.deliver-card h4 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.deliver-card p { font-size: 14px; color: var(--muted); }

.format-note {
  margin-top: 22px; background: var(--accent-soft);
  border: 1px solid #F2D4BE; border-radius: var(--radius-sm);
  padding: 16px 20px; font-size: 14px; color: #7C3A12;
}
.format-note strong { font-weight: 700; }

/* ---------- about page ---------- */
.milestones { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.milestone { background: var(--bg2); border: 1px solid var(--rule); border-radius: var(--radius-sm); padding: 22px; box-shadow: var(--shadow); }
.milestone .yr { font-family: var(--font-mono); font-size: 13px; font-weight: 700; color: var(--accent); margin-bottom: 8px; letter-spacing: .06em; }
.milestone h4 { font-size: 15.5px; font-weight: 700; margin-bottom: 6px; }
.milestone p { font-size: 13px; color: var(--muted); }

.contact-panel {
  background: var(--dark); color: var(--dark-ink);
  border-radius: var(--radius); padding: 40px;
  display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px;
  box-shadow: var(--shadow-lift);
}
.contact-panel h3 { font-size: 24px; font-weight: 700; margin-bottom: 12px; }
.contact-panel .cp-sub { color: var(--dark-muted); font-size: 15px; }
.contact-list { display: flex; flex-direction: column; gap: 16px; justify-content: center; }
.contact-item { display: flex; gap: 14px; align-items: flex-start; }
.contact-item .ic {
  width: 40px; height: 40px; border-radius: 10px; flex-shrink: 0;
  background: var(--dark3); color: var(--on-dark-accent);
  display: grid; place-items: center; font-family: var(--font-mono); font-size: 13px; font-weight: 700;
}
.contact-item .k { font-size: 12px; color: var(--dark-muted); font-family: var(--font-mono); letter-spacing: .08em; text-transform: uppercase; }
.contact-item .v { font-size: 15.5px; font-weight: 600; margin-top: 2px; }

/* ---------- Inquiry form (posts to ego/send_api) ---------- */
.inquiry-panel {
  background: var(--dark); color: var(--dark-ink);
  border-radius: var(--radius); padding: 40px;
  box-shadow: var(--shadow-lift);
}
.inquiry-panel .kicker { color: var(--on-dark-accent); }
.iq-head { margin-bottom: 26px; }
.iq-head h3 { font-size: 22px; font-weight: 700; margin-bottom: 10px; }
.iq-sub { color: var(--dark-muted); font-size: 14.5px; max-width: 640px; }
.iq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.iq-field label {
  display: block; font-family: var(--font-mono); font-size: 11.5px; font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase; color: var(--dark-muted); margin-bottom: 8px;
}
.iq-field input, .iq-field textarea {
  width: 100%; box-sizing: border-box;
  background: rgba(255, 255, 255, .05);
  border: 1px solid var(--dark-rule); border-radius: 10px;
  color: var(--dark-ink); font-family: inherit; font-size: 15px;
  padding: 12px 14px; outline: none;
  transition: border-color .15s ease, background .15s ease;
}
.iq-field input::placeholder, .iq-field textarea::placeholder { color: rgba(255,255,255,.32); }
.iq-field input:focus, .iq-field textarea:focus { border-color: var(--on-dark-accent); background: rgba(255,255,255,.08); }
.iq-field textarea { resize: vertical; min-height: 104px; }
.iq-field input.invalid, .iq-field textarea.invalid { border-color: #E06A4E; }
/* Arithmetic challenge display */
.iq-captcha-q {
  display: inline-block; font-family: var(--font-mono); font-size: 13px; font-weight: 700;
  color: var(--on-dark-accent); background: rgba(255,255,255,.06);
  border: 1px solid var(--dark-rule); border-radius: 6px; padding: 2px 10px;
  letter-spacing: .05em;
}
.iq-full { grid-column: 1 / -1; }
/* Honeypot: hidden from view and screen readers, DOM presence only */
.hp-field {
  position: absolute; left: -9999px; top: -9999px;
  width: 1px; height: 1px; overflow: hidden; opacity: 0;
}
.iq-foot { display: flex; align-items: center; gap: 18px; margin-top: 22px; flex-wrap: wrap; }
.iq-note { color: var(--dark-muted); font-size: 12.5px; }
.iq-status { margin-top: 16px; display: none; }
.iq-status.show { display: block; }
.iq-status .iq-msg {
  border-radius: 10px; padding: 14px 18px; font-size: 14.5px; line-height: 1.6;
  border: 1px solid var(--dark-rule);
}
.iq-status.ok .iq-msg { background: rgba(94, 180, 123, .12); border-color: rgba(94, 180, 123, .45); }
.iq-status.ok .iq-msg strong { color: #7FCF9B; }
.iq-status.err .iq-msg { background: rgba(224, 106, 78, .12); border-color: rgba(224, 106, 78, .45); }
.iq-status.err .iq-msg strong { color: #EE9B85; }
.iq-status .iq-msg p { color: var(--dark-muted); margin-top: 4px; }
#iqSubmit[disabled] { opacity: .55; cursor: not-allowed; }
@media (max-width: 640px) {
  .iq-grid { grid-template-columns: 1fr; }
  .inquiry-panel { padding: 28px 22px; }
}

/* ---------- footer ---------- */
.site-footer { background: var(--dark); color: var(--dark-muted); padding: 64px 0 32px; margin-top: 0; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1.2fr; gap: 48px; padding-bottom: 44px; border-bottom: 1px solid var(--dark-rule); }
.footer-brand p { font-size: 14px; margin-top: 16px; max-width: 380px; line-height: 1.8; }
.footer-col h4 { font-family: var(--font-mono); font-size: 11.5px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--dark-muted); margin-bottom: 18px; }
.footer-col ul { display: flex; flex-direction: column; gap: 11px; }
.footer-col a { font-size: 14.5px; color: var(--dark-muted); transition: color .15s; }
.footer-col a:hover { color: var(--dark-ink); }
.footer-col .fcontact { font-size: 14.5px; color: var(--dark-muted); line-height: 1.9; }
.footer-col .fcontact strong { color: var(--dark-ink); font-weight: 600; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; gap: 20px; flex-wrap: wrap; padding-top: 28px; font-size: 12.5px; }
.footer-cert { display: flex; gap: 10px; flex-wrap: wrap; }
.footer-cert span {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .04em;
  border: 1px solid var(--dark-rule); border-radius: 6px; padding: 4px 10px;
  color: var(--dark-muted);
}

/* Legal line (footer) */
.footer-legal { padding-top: 22px; font-size: 12px; line-height: 2; color: var(--dark-muted); }
.footer-legal a { color: var(--dark-muted); }
.footer-legal a:hover { color: var(--dark-ink); }
.footer-legal .sep { margin: 0 10px; color: var(--dark-rule); }

/* ---------- misc ---------- */
.note { font-size: 13px; color: var(--muted); }
.empty-state { padding: 60px 0; text-align: center; color: var(--muted); }

/* ---------- responsive ---------- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .scn-grid { grid-template-columns: repeat(3, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); row-gap: 18px; }
  .milestones { grid-template-columns: repeat(2, 1fr); }
  .ds-hero-grid { grid-template-columns: 1fr; }
  .meta-panel { max-width: 560px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-panel { grid-template-columns: 1fr; }
}
@media (max-width: 820px) {
  .main-nav {
    display: none;
    position: absolute; top: 68px; left: 0; right: 0;
    background: var(--bg2); border-bottom: 1px solid var(--rule);
    flex-direction: column; align-items: stretch; gap: 0; padding: 10px 28px 20px;
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 13px 0; border-bottom: 1px solid var(--rule); font-size: 16px; }
  .menu-btn { display: flex; }
  .header-actions .btn { display: none; }
  .grid-3 { grid-template-columns: 1fr; }
  .chart-grid, .frame-row, .deliver-grid, .pipeline, .comp-cols, .grid-2 { grid-template-columns: 1fr; }
  .scn-row { grid-template-columns: 1fr; gap: 24px; }
  .scn-row.flip .scn-media { order: 0; }
  .hero-inner { padding: 72px 0 60px; }
  .hero-stats-inner { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .band-inner { padding: 52px 0; }
  .section { padding: 60px 0; }
}
@media (max-width: 600px) {
  .grid-4 { grid-template-columns: 1fr; }
  .scn-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .ds-metric-row { grid-template-columns: 1fr; }
  .milestones { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .container { padding: 0 20px; }
  .market-count { margin-left: 0; width: 100%; }
  .filter-row { flex-direction: column; align-items: flex-start; }
  .ds-card-ph { height: 150px; }
}

/* reduced motion */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}