/* ═══════════════════════════════════════════════════════════
   BITXTEND  —  Premium HiTech Brand Theme  v4
   Logo-extracted palette: Gold Neon + Deep Indigo
   ═══════════════════════════════════════════════════════════ */

/* ── 1. Design Tokens ───────────────────────────────────────── */
:root {
  /* Brand Colors — 3-HEX system (change these 3 to retheme) */
  --gold-1   : #E9C84A;   /* Core Gold  — primary accent */
  --gold-2   : #F6E16F;   /* Neon Glow  — highlights, bloom */
  --gold-dim  : #C79C2A;   /* Dim Gold   — depth, shadow */

  /* Background System */
  --bg-base  : #080C1A;   /* deep navy canvas */
  --bg-layer : #0C1120;   /* card/panel layer */
  --bg-raise : #111828;   /* elevated surface */
  --bg-hover : #151E30;   /* hover surface */

  /* Text */
  --tx-1     : #EDF2FA;   /* primary text */
  --tx-2     : #9BAAC4;   /* secondary / muted */
  --tx-3     : #5A6880;   /* placeholder / disabled */

  /* Grid Lines & Borders */
  --line     : rgba(233,200,74,0.10);  /* gold-tinted grid line */
  --line-2   : rgba(233,200,74,0.18);  /* slightly stronger */
  --border   : rgba(233,200,74,0.14);  /* card border */
  --border-h : rgba(233,200,74,0.30);  /* hover / focus border */

  /* Glow (subtle, not bloomy) */
  --glow-sm  : 0 0 12px rgba(233,200,74,0.20);
  --glow-md  : 0 0 24px rgba(233,200,74,0.15), 0 0 48px rgba(233,200,74,0.08);

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.5);
  --shadow-md: 0 4px 24px rgba(0,0,0,0.5);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.6);

  /* Radius */
  --r-sm : 6px;
  --r-md : 10px;
  --r-lg : 16px;
  --r-xl : 20px;

  /* Typography */
  --font-sans: 'Inter', 'Noto Sans KR', 'Noto Sans JP', ui-sans-serif, system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', ui-monospace, monospace;

  /* Max width */
  --max: 1200px;

  /* Transition */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur : 220ms;
}

/* ── 2. Reset & Base ──────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-sans);
  background: var(--bg-base);
  color: var(--tx-1);
  line-height: 1.6;
  overflow-x: hidden;
  /* Subtle grid texture */
  background-image:
    linear-gradient(rgba(233,200,74,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(233,200,74,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: inherit; }
ul, ol { list-style: none; }

/* ── 3. Typography ─────────────────────────────────────────────── */
.label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold-1);
  display: flex;
  align-items: center;
  gap: 8px;
}
.label::before {
  content: '';
  display: inline-block;
  width: 16px;
  height: 1px;
  background: var(--gold-1);
  opacity: 0.6;
}

h1, h2, h3, h4 { line-height: 1.15; font-weight: 700; color: var(--tx-1); }
h1 { font-size: clamp(2rem, 4vw, 3.2rem); letter-spacing: -0.03em; }
h2 { font-size: clamp(1.4rem, 2.5vw, 2rem); letter-spacing: -0.02em; }
h3 { font-size: 1.1rem; letter-spacing: -0.01em; }
h4 { font-size: 0.875rem; }

.mono { font-family: var(--font-mono); }

/* ── 4. Layout ─────────────────────────────────────────────────── */
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
section { padding: 72px 0; }
.section-head {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 40px;
}
.section-head p { color: var(--tx-2); max-width: 60ch; line-height: 1.7; }

/* ── 5. HiTech Header ─────────────────────────────────────────── */
#site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 60px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--line-2);
  background: rgba(8,12,26,0.88);
  backdrop-filter: blur(16px) saturate(1.6);
  -webkit-backdrop-filter: blur(16px) saturate(1.6);
}
#site-header .wrap {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

/* Logo */
.site-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.logo-mark {
  width: 32px;
  height: 32px;
  position: relative;
  flex-shrink: 0;
}
.logo-mark svg {
  width: 100%;
  height: 100%;
}
.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}
.logo-text span:first-child {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--gold-1);
  text-transform: uppercase;
}
.logo-text span:last-child {
  font-size: 14px;
  font-weight: 800;
  color: var(--tx-1);
  letter-spacing: 0.06em;
  margin-top: 2px;
}

/* Main nav */
.main-nav {
  display: flex;
  align-items: center;
  gap: 2px;
}
.main-nav a {
  font-size: 13px;
  font-weight: 500;
  color: var(--tx-2);
  padding: 6px 12px;
  border-radius: var(--r-sm);
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
  position: relative;
}
.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 12px;
  right: 12px;
  height: 1px;
  background: var(--gold-1);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur) var(--ease);
}
.main-nav a:hover { color: var(--tx-1); background: rgba(255,255,255,0.04); }
.main-nav a:hover::after, .main-nav a.active::after { transform: scaleX(1); }
.main-nav a.active { color: var(--gold-1); }

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

/* Lang Switch */
.lang-switch {
  display: flex;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  overflow: hidden;
  background: var(--bg-layer);
}
.lang-switch button {
  background: none;
  border: none;
  padding: 5px 10px;
  font-size: 11px;
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--tx-3);
  letter-spacing: 0.08em;
  border-right: 1px solid var(--border);
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.lang-switch button:last-child { border-right: none; }
.lang-switch button.active {
  color: var(--gold-1);
  background: rgba(233,200,74,0.08);
}
.lang-switch button:hover:not(.active) {
  color: var(--tx-2);
  background: rgba(255,255,255,0.04);
}

/* CTA Button */
.btn-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border: 1px solid var(--border-h);
  border-radius: var(--r-sm);
  font-size: 12px;
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--gold-1);
  background: rgba(233,200,74,0.06);
  transition: background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.btn-header:hover {
  background: rgba(233,200,74,0.12);
  box-shadow: var(--glow-sm);
}
.btn-header .arrow { transition: transform var(--dur) var(--ease); }
.btn-header:hover .arrow { transform: translate(2px, -2px); }

/* Mobile menu toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--tx-2);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Mobile nav drawer */
.mobile-nav {
  display: none;
  position: fixed;
  top: 60px;
  left: 0;
  right: 0;
  background: rgba(8,12,26,0.97);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line-2);
  padding: 16px 24px 20px;
  z-index: 99;
  flex-direction: column;
  gap: 4px;
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--tx-2);
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  transition: color var(--dur) var(--ease);
}
.mobile-nav a:hover, .mobile-nav a.active { color: var(--gold-1); }

/* ── 6. Footer ─────────────────────────────────────────────────── */
#site-footer {
  border-top: 1px solid var(--line-2);
  padding: 40px 0 60px;
  margin-top: 0;
}
.footer-inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.footer-brand .site-logo { margin-bottom: 10px; }
.footer-brand p {
  font-size: 12px;
  color: var(--tx-3);
  max-width: 36ch;
  line-height: 1.7;
}
.footer-links {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
}
.footer-links-col h4 {
  font-size: 11px;
  font-family: var(--font-mono);
  letter-spacing: 0.14em;
  color: var(--tx-3);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.footer-links-col a {
  display: block;
  font-size: 13px;
  color: var(--tx-2);
  padding: 4px 0;
  transition: color var(--dur) var(--ease);
}
.footer-links-col a:hover { color: var(--gold-1); }
.footer-bottom {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-bottom p {
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--tx-3);
}
.source-link {
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--tx-3);
  transition: color var(--dur) var(--ease);
}
.source-link:hover { color: var(--gold-1); }

/* ── 7. Buttons ────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: var(--r-sm);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: all var(--dur) var(--ease);
  border: 1px solid transparent;
  text-decoration: none;
}
.btn-primary {
  background: var(--gold-1);
  color: #08080C;
  border-color: var(--gold-1);
}
.btn-primary:hover {
  background: var(--gold-2);
  border-color: var(--gold-2);
  box-shadow: var(--glow-md);
  transform: translateY(-1px);
}
.btn-outline {
  background: transparent;
  color: var(--tx-2);
  border-color: var(--border);
}
.btn-outline:hover {
  color: var(--gold-1);
  border-color: var(--border-h);
  background: rgba(233,200,74,0.05);
}
.btn-ghost {
  background: transparent;
  color: var(--gold-1);
  border-color: transparent;
  padding-left: 0;
}
.btn-ghost:hover { gap: 12px; }
.btn-ghost .arr { transition: transform var(--dur) var(--ease); }
.btn-ghost:hover .arr { transform: translateX(4px); }

/* ── 8. Cards ──────────────────────────────────────────────────── */
.card {
  background: var(--bg-layer);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 24px;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease), transform var(--dur) var(--ease);
  position: relative;
  overflow: hidden;
}
.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-1), transparent);
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
}
.card:hover { border-color: var(--border-h); box-shadow: var(--glow-sm); }
.card:hover::before { opacity: 0.6; }

/* Card variants */
.card-raised {
  background: var(--bg-raise);
}
.card-accent {
  border-color: rgba(233,200,74,0.25);
  background: rgba(233,200,74,0.04);
}

/* ── 9. Grid Layouts ───────────────────────────────────────────── */
.grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; }
.grid-2 { display: grid; grid-template-columns: repeat(2,1fr); gap: 16px; }
.grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; }
.split-7-5 { display: grid; grid-template-columns: 1.4fr 1fr; gap: 24px; align-items: start; }
.split-5-7 { display: grid; grid-template-columns: 1fr 1.4fr; gap: 24px; align-items: start; }

/* ── 10. HiTech UI Components ─────────────────────────────────── */

/* Scan line divider */
.scan-line {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 12px 0;
  opacity: 0.5;
}
.scan-line::before, .scan-line::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-1), transparent);
}
.scan-line span {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--gold-dim);
  letter-spacing: 0.2em;
}

/* Corner brackets */
.bracket-box {
  position: relative;
  padding: 20px;
}
.bracket-box::before, .bracket-box::after,
.bracket-box > .br-b-l::before, .bracket-box > .br-b-r::before {
  content: '';
  position: absolute;
  width: 12px;
  height: 12px;
  border-color: var(--gold-dim);
  border-style: solid;
}
.bracket-box::before {
  top: 0; left: 0;
  border-width: 1px 0 0 1px;
}
.bracket-box::after {
  top: 0; right: 0;
  border-width: 1px 1px 0 0;
}
.bracket-box > .br-b-l::before {
  bottom: 0; left: 0;
  border-width: 0 0 1px 1px;
}
.bracket-box > .br-b-r::before {
  bottom: 0; right: 0;
  border-width: 0 1px 1px 0;
}

/* KPI Metric */
.kpi-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
}
.kpi-item {
  padding: 20px 24px;
  border-right: 1px solid var(--border);
  position: relative;
}
.kpi-item:last-child { border-right: none; }
.kpi-item::before {
  content: '';
  position: absolute;
  bottom: 0; left: 24px; right: 24px;
  height: 2px;
  background: var(--gold-1);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 600ms var(--ease);
}
.kpi-item.visible::before { transform: scaleX(1); }
.kpi-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--tx-3);
  text-transform: uppercase;
  margin-bottom: 6px;
}
.kpi-value {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--tx-1);
  line-height: 1;
  letter-spacing: -0.03em;
}
.kpi-value em { font-style: normal; color: var(--gold-1); }
.kpi-unit {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--tx-2);
  margin-top: 4px;
}

/* Data Table */
.data-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
}
.data-table thead th {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--tx-3);
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  background: rgba(233,200,74,0.03);
}
.data-table tbody td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
  color: var(--tx-2);
  vertical-align: middle;
}
.data-table tbody tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover td {
  color: var(--tx-1);
  background: rgba(233,200,74,0.04);
}
.data-table .td-hl { color: var(--tx-1); font-weight: 600; }
.data-table .td-gold { color: var(--gold-1); font-weight: 700; font-family: var(--font-mono); }
.data-table .td-mono { font-family: var(--font-mono); font-size: 12px; }

/* Table wrapper */
.table-wrap {
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
}

/* Icon */
.icon-box {
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-raise);
  color: var(--gold-1);
  font-size: 15px;
  flex-shrink: 0;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.icon-box:hover { border-color: var(--border-h); box-shadow: var(--glow-sm); }

/* Step / Timeline */
.steps { display: flex; flex-direction: column; gap: 0; }
.step-item {
  display: flex;
  gap: 20px;
  position: relative;
}
.step-item + .step-item { margin-top: 0; }
.step-left {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
}
.step-num {
  width: 32px;
  height: 32px;
  border: 1px solid var(--gold-dim);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--gold-1);
  background: var(--bg-layer);
  flex-shrink: 0;
  z-index: 1;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.step-item:hover .step-num {
  border-color: var(--gold-1);
  box-shadow: var(--glow-sm);
}
.step-line {
  flex: 1;
  width: 1px;
  background: var(--line-2);
  margin: 4px 0;
}
.step-body {
  padding: 4px 0 28px;
  flex: 1;
}
.step-item:last-child .step-body { padding-bottom: 0; }
.step-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--tx-1);
  margin-bottom: 6px;
}
.step-desc { font-size: 13px; color: var(--tx-2); line-height: 1.7; }

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  padding: 4px 10px;
  border-radius: var(--r-sm);
  border: 1px solid var(--border);
  color: var(--tx-2);
  background: var(--bg-layer);
}
.badge.gold {
  color: var(--gold-1);
  border-color: rgba(233,200,74,0.25);
  background: rgba(233,200,74,0.06);
}
.badge.live::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #22C55E;
  box-shadow: 0 0 6px #22C55E;
  animation: pulse-green 2s infinite;
}
@keyframes pulse-green {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* Pill list */
.pill-list { display: flex; flex-wrap: wrap; gap: 6px; }
.pill {
  font-size: 11px;
  font-family: var(--font-mono);
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  color: var(--tx-2);
  background: var(--bg-layer);
}

/* Warning / Disclaimer */
.disclaimer {
  font-size: 11px;
  line-height: 1.7;
  color: var(--tx-3);
  border: 1px solid var(--line-2);
  border-radius: var(--r-md);
  padding: 12px 16px;
  background: rgba(233,200,74,0.02);
  font-family: var(--font-mono);
}
.disclaimer strong { color: var(--tx-2); }

/* ── 11. Hero Block ─────────────────────────────────────────────── */
.hero {
  padding: 80px 0 64px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 48px;
  align-items: center;
}
.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.hero-eyebrow .badge { font-size: 10px; }
.hero-title {
  font-size: clamp(2.2rem, 4.5vw, 3.6rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.08;
  margin-bottom: 16px;
}
.hero-title .line-gold { color: var(--gold-1); }
.hero-desc {
  font-size: 15px;
  color: var(--tx-2);
  line-height: 1.75;
  max-width: 52ch;
  margin-bottom: 28px;
}
.hero-actions { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.hero-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-top: 24px;
  flex-wrap: wrap;
}
.hero-meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--tx-3);
}
.hero-meta-item span { color: var(--tx-2); }

/* ICO Card */
.ico-card {
  border: 1px solid var(--border-h);
  border-radius: var(--r-xl);
  padding: 28px;
  background: var(--bg-layer);
  position: relative;
  overflow: hidden;
}
.ico-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-1), transparent);
}
.ico-card-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--tx-3);
  text-transform: uppercase;
  margin-bottom: 10px;
}
.ico-price {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 6px;
}
.ico-price-num {
  font-size: 3.2rem;
  font-weight: 900;
  color: var(--gold-1);
  line-height: 1;
  letter-spacing: -0.04em;
  font-family: var(--font-mono);
}
.ico-price-unit {
  font-size: 1rem;
  font-weight: 700;
  color: var(--tx-2);
  font-family: var(--font-mono);
}
.ico-note {
  font-size: 11px;
  color: var(--tx-3);
  font-family: var(--font-mono);
  margin-bottom: 16px;
}
.ico-divider {
  height: 1px;
  background: var(--line-2);
  margin: 16px 0;
}
.ico-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 0;
}
.ico-row-key { font-size: 12px; color: var(--tx-3); font-family: var(--font-mono); }
.ico-row-val { font-size: 12px; color: var(--tx-1); font-weight: 600; }

/* ── 12. Feature List ─────────────────────────────────────────── */
.feature-list { display: flex; flex-direction: column; gap: 12px; }
.feature-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--bg-layer);
  transition: border-color var(--dur) var(--ease);
}
.feature-item:hover { border-color: var(--border-h); }
.feature-icon {
  width: 28px;
  height: 28px;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(233,200,74,0.06);
  color: var(--gold-1);
  font-size: 12px;
  flex-shrink: 0;
  margin-top: 1px;
}
.feature-title { font-size: 13px; font-weight: 600; color: var(--tx-1); margin-bottom: 3px; }
.feature-desc { font-size: 12px; color: var(--tx-2); line-height: 1.65; }

/* ── 13. Bar Chart ─────────────────────────────────────────────── */
.bar-chart { display: flex; flex-direction: column; gap: 10px; }
.bar-row {
  display: grid;
  grid-template-columns: 110px 1fr 80px;
  align-items: center;
  gap: 12px;
}
.bar-label { font-size: 11px; font-family: var(--font-mono); color: var(--tx-2); text-align: right; }
.bar-track {
  height: 6px;
  background: var(--bg-raise);
  border-radius: 3px;
  overflow: hidden;
  border: 1px solid var(--line);
}
.bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--gold-dim), var(--gold-1));
  border-radius: 3px;
  width: 0;
  transition: width 1000ms var(--ease);
}
.bar-val { font-size: 11px; font-family: var(--font-mono); color: var(--gold-1); font-weight: 700; }

/* ── 14. Accordion (FAQ) ──────────────────────────────────────── */
.accordion { display: flex; flex-direction: column; gap: 0; border: 1px solid var(--border); border-radius: var(--r-lg); overflow: hidden; }
.accordion-item { border-bottom: 1px solid var(--border); }
.accordion-item:last-child { border-bottom: none; }
.accordion-trigger {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: var(--bg-layer);
  border: none;
  text-align: left;
  font-size: 14px;
  font-weight: 600;
  color: var(--tx-1);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
  cursor: pointer;
}
.accordion-trigger:hover { background: var(--bg-hover); color: var(--gold-1); }
.accordion-trigger[aria-expanded="true"] { color: var(--gold-1); background: rgba(233,200,74,0.04); }
.accordion-icon {
  width: 18px;
  height: 18px;
  border: 1px solid var(--border);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: var(--tx-3);
  flex-shrink: 0;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.accordion-trigger[aria-expanded="true"] .accordion-icon {
  transform: rotate(45deg);
  border-color: var(--gold-dim);
  color: var(--gold-1);
}
.accordion-body {
  display: none;
  padding: 16px 20px 20px;
  font-size: 13px;
  color: var(--tx-2);
  line-height: 1.75;
  background: var(--bg-base);
  border-top: 1px solid var(--line);
}
.accordion-body.open { display: block; }

/* ── 15. Roadmap Timeline ─────────────────────────────────────── */
.timeline { display: flex; flex-direction: column; gap: 0; }
.timeline-item {
  display: grid;
  grid-template-columns: 100px 1px 1fr;
  gap: 0 24px;
  align-items: stretch;
}
.tl-date {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--gold-dim);
  letter-spacing: 0.1em;
  padding: 2px 0;
  text-align: right;
  padding-right: 0;
  padding-top: 4px;
}
.tl-rail {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}
.tl-dot {
  width: 9px;
  height: 9px;
  border: 1px solid var(--gold-1);
  border-radius: 50%;
  background: var(--bg-base);
  flex-shrink: 0;
  z-index: 1;
  margin-top: 5px;
  transition: box-shadow var(--dur) var(--ease);
}
.timeline-item:hover .tl-dot { box-shadow: var(--glow-sm); background: var(--gold-1); }
.tl-line {
  flex: 1;
  width: 1px;
  background: var(--line-2);
  margin: 4px 0;
}
.timeline-item:last-child .tl-line { background: transparent; }
.tl-content {
  padding: 0 0 32px;
}
.timeline-item:last-child .tl-content { padding-bottom: 0; }
.tl-title { font-size: 15px; font-weight: 700; color: var(--tx-1); margin-bottom: 6px; margin-top: 2px; }
.tl-desc { font-size: 13px; color: var(--tx-2); line-height: 1.7; }
.tl-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.tl-tag {
  font-size: 10px;
  font-family: var(--font-mono);
  padding: 3px 8px;
  border: 1px solid var(--line-2);
  border-radius: 3px;
  color: var(--tx-3);
}

/* ── 16. Scroll Reveal ─────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 500ms var(--ease), transform 500ms var(--ease);
}
.reveal.visible {
  opacity: 1;
  transform: none;
}
.reveal-d1 { transition-delay: 60ms; }
.reveal-d2 { transition-delay: 120ms; }
.reveal-d3 { transition-delay: 180ms; }
.reveal-d4 { transition-delay: 240ms; }

/* ── 17. Utilities ─────────────────────────────────────────────── */
.text-gold { color: var(--gold-1); }
.text-muted { color: var(--tx-2); }
.text-dim { color: var(--tx-3); }
.text-mono { font-family: var(--font-mono); }
.text-sm { font-size: 13px; }
.text-xs { font-size: 11px; }
.mt-4 { margin-top: 4px; }
.mt-8 { margin-top: 8px; }
.mt-12 { margin-top: 12px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mb-8 { margin-bottom: 8px; }
.mb-12 { margin-bottom: 12px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.flex { display: flex; }
.flex-col { display: flex; flex-direction: column; }
.items-center { align-items: center; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.gap-24 { gap: 24px; }
.fw-7 { font-weight: 700; }
.fw-8 { font-weight: 800; }

/* ── 18. Responsive ─────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr 360px; }
  .grid-4 { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-grid > *:last-child { max-width: 480px; }
  .grid-3 { grid-template-columns: repeat(2,1fr); }
  .split-7-5, .split-5-7 { grid-template-columns: 1fr; }
  .kpi-strip { grid-template-columns: repeat(2,1fr); }
  .kpi-item { border-right: none; border-bottom: 1px solid var(--border); }
  .kpi-item:last-child { border-bottom: none; }
  .main-nav { display: none; }
  .nav-toggle { display: flex; }
  .timeline-item { grid-template-columns: 72px 1px 1fr; }
  .footer-links { gap: 24px; }
  section { padding: 48px 0; }
}
@media (max-width: 560px) {
  .wrap { padding: 0 16px; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr; }
  h1 { font-size: 2rem; }
  .hero { padding: 48px 0 40px; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .bar-row { grid-template-columns: 80px 1fr 60px; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}