/* ============================================
   BIVAR CAPITAL — Design System v2
   Canonical source: index.html inline CSS
   ============================================ */

/* --- Colors & Tokens --- */
:root {
  --bg: #060608;
  --bg-card: #0c0c10;
  --bg-elevated: #111116;
  --bg-primary: #060608;
  --border: #1a1a22;
  --border-light: #2a2a35;
  --text: #e8e8ec;
  --text-primary: #e8e8ec;
  --text-secondary: #9898a4;
  --text-muted: #5a5a68;
  --accent: #c4a265;
  --accent-hover: #d4b87a;
  --green: #4ade80;
  --green-dim: rgba(74,222,128,0.12);
  --red: #f87171;
  --red-dim: rgba(248,113,113,0.12);
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body: 'DM Sans', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', monospace;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font-body); background: var(--bg); color: var(--text); line-height: 1.6; font-size: 15px; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }

/* --- Typography --- */
h1 { font-family: var(--font-display); font-size: clamp(2.8rem, 6vw, 4.5rem); font-weight: 400; line-height: 1.08; letter-spacing: -0.02em; color: var(--text); margin-bottom: 28px; }
h2 { font-family: var(--font-display); font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 400; line-height: 1.2; letter-spacing: -0.01em; color: var(--text); }
h3 { font-size: clamp(1rem, 2vw, 1.3rem); font-weight: 600; line-height: 1.3; color: var(--text); }
p { color: var(--text-secondary); font-size: 0.95rem; max-width: 640px; }
.label { font-family: var(--font-mono); font-size: 0.65rem; font-weight: 500; letter-spacing: 0.18em; text-transform: uppercase; color: var(--accent); }
.sublabel { font-family: var(--font-mono); font-size: 0.65rem; font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-muted); }
.section-label { font-family: var(--font-mono); font-size: 0.65rem; font-weight: 500; letter-spacing: 0.15em; text-transform: uppercase; color: var(--accent); }
.italic { font-style: italic; color: var(--accent); }
.text-center { text-align: center; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

/* --- Animations --- */
@keyframes fadeUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }
.fade-up { animation: fadeUp 0.8s ease-out both; }
.fade-up-1 { animation-delay: 0.1s; }
.fade-up-2 { animation-delay: 0.2s; }
.fade-up-3 { animation-delay: 0.3s; }
.fade-up-4 { animation-delay: 0.4s; }
.fade-up-5 { animation-delay: 0.5s; }
.live-dot { display: inline-block; width: 7px; height: 7px; background: var(--green); border-radius: 50%; margin-right: 6px; vertical-align: middle; animation: pulse 2s ease-in-out infinite; }

/* --- Layout --- */
.container { max-width: 1080px; margin: 0 auto; padding: 0 28px; }
.section { padding: 48px 0; }
.section-sm { padding: 48px 0; }
.divider { width: 60px; height: 2px; background: var(--accent); border-radius: 2px; opacity: 0.4; }

/* --- Navigation (exact match to index.html) --- */
.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 36px; position: sticky; top: 0; z-index: 100;
  background: rgba(6,6,8,0.88); backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid var(--border);
}
.nav-logo { font-family: var(--font-mono); font-size: 0.72rem; font-weight: 600; letter-spacing: 0.32em; color: var(--text); }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { font-size: 0.72rem; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-muted); transition: color 0.25s; }
.nav-links a:hover, .nav-links a.active { color: var(--text); }
.btn-sub, .nav-signin { font-size: 0.72rem; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-muted); transition: color 0.25s; }
.btn-sub:hover, .nav-signin:hover { color: var(--text); }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 4px; }
.nav-toggle span { display: block; width: 20px; height: 1.5px; background: var(--text); margin: 5px 0; transition: 0.3s; }

/* --- Hero (exact match to index.html) --- */
.hero {
  text-align: center; padding: 100px 28px 60px;
  background: radial-gradient(ellipse at 50% 0%, rgba(196,162,101,0.04) 0%, transparent 60%);
}
.hero h1 { margin-bottom: 28px; }
.hero .italic { font-family: var(--font-display); font-style: italic; color: var(--accent); display: block; font-size: clamp(1.8rem, 4vw, 3.2rem); margin-top: 4px; }
.hero p { margin: 0 auto 12px; font-size: 1.05rem; }

/* --- Cards --- */
.card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 10px;
  padding: 32px; transition: border-color 0.3s, transform 0.2s;
  display: flex; flex-direction: column;
}
.card .btn { margin-top: auto; }
.card:hover { border-color: var(--border-light); transform: translateY(-2px); }
.card h3 { margin: 12px 0 8px; }
.card p { font-size: 0.88rem; }
.card-link { display: inline-block; margin-top: 20px; font-size: 0.82rem; font-weight: 600; color: var(--text); transition: color 0.2s; }
.card-link:hover, .card:hover .card-link { color: var(--accent); }
.cards-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
.cards-3 { grid-template-columns: repeat(3, 1fr); }

/* --- Quote --- */
.quote-block {
  text-align: center; padding: 48px 24px;
  background: var(--bg-elevated); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
}
.quote-block blockquote {
  font-family: var(--font-display); font-style: italic;
  font-size: clamp(1rem, 2.5vw, 1.4rem); color: var(--text-secondary);
  max-width: 700px; margin: 0 auto 16px; line-height: 1.6;
}
.quote-block cite { font-family: var(--font-mono); font-size: 0.7rem; color: var(--text-muted); font-style: normal; letter-spacing: 0.1em; text-transform: uppercase; }

/* --- Footer (exact match to index.html) --- */
.footer {
  padding: 40px 36px; border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 20px;
}
.footer-logo { font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.28em; color: var(--text-muted); }
.footer-links { display: flex; gap: 24px; }
.footer-links a { font-size: 0.68rem; color: var(--text-muted); letter-spacing: 0.08em; text-transform: uppercase; transition: color 0.2s; }
.footer-links a:hover { color: var(--text); }
.footer-disclaimer { width: 100%; text-align: center; font-size: 0.65rem; color: var(--text-muted); margin-top: 16px; opacity: 0.6; }

/* --- Social Icons --- */
.social-icons { display: flex; gap: 12px; align-items: center; }
.social-icons a { display: flex; align-items: center; justify-content: center; width: 32px; height: 32px; border: 1px solid var(--border); border-radius: 6px; color: var(--text-muted); transition: all 0.2s; }
.social-icons a:hover { color: var(--text); border-color: var(--border-light); }
.social-icons svg { width: 14px; height: 14px; fill: currentColor; }

/* --- CTA Buttons --- */
.btn {
  display: inline-block; padding: 13px 32px;
  background: transparent; border: 1px solid var(--border-light); border-radius: 7px;
  font-size: 0.82rem; font-weight: 600; color: var(--text-secondary);
  transition: all 0.25s; cursor: pointer;
}
.btn:hover { border-color: var(--text-muted); color: var(--text); }
.btn-accent { background: var(--accent); border-color: var(--accent); color: var(--bg); font-weight: 700; }
.btn-accent:hover { background: var(--accent-hover); }

/* --- Tags --- */
.tag {
  display: inline-block; font-family: var(--font-mono); font-size: 0.58rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase; padding: 3px 8px;
  border: 1px solid var(--border); border-radius: 4px; color: var(--text-muted); margin-right: 6px;
}

/* --- Feature List --- */
.feature-list { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 32px; margin: 24px 0; }
.feature-item { font-size: 0.88rem; color: var(--text-secondary); padding-left: 20px; position: relative; }
.feature-item::before { content: '\2192'; position: absolute; left: 0; color: var(--accent); }

/* --- Table --- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.84rem; }
thead th {
  font-family: var(--font-mono); text-align: left;
  font-size: 0.6rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--text-muted); padding: 12px 16px; border-bottom: 1px solid var(--border);
}
tbody td { padding: 12px 16px; border-bottom: 1px solid var(--border); color: var(--text-secondary); }
tbody tr:hover { background: var(--bg-elevated); }
.pos { color: var(--green); font-weight: 600; }
.neg { color: var(--red); font-weight: 600; }

/* --- Research Pages --- */
.research-section { margin-bottom: 48px; }
.research-section h2 { margin-bottom: 16px; }
.research-section h3 { margin-top: 24px; margin-bottom: 10px; }
.research-section p { margin-bottom: 14px; color: var(--text-secondary); font-size: 0.92rem; max-width: none; line-height: 1.7; }

/* --- Stats Grid --- */
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: var(--border); border: 1px solid var(--border); border-radius: 10px; overflow: hidden; margin-bottom: 32px;
}
.sg-stat { background: var(--bg-card); padding: 20px; }
.sg-stat-label { font-family: var(--font-mono); font-size: 0.55rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 6px; }
.sg-stat-val { font-family: var(--font-mono); font-size: 1.4rem; font-weight: 700; color: var(--text); }

/* --- Pullquote --- */
.pullquote {
  border-left: 2px solid var(--accent); padding: 16px 24px; margin: 28px 0;
  font-family: var(--font-display); font-style: italic; font-size: 1.05rem;
  color: var(--text-secondary); line-height: 1.6; background: var(--bg-elevated); border-radius: 0 8px 8px 0;
}

/* ============================================
   Responsive (exact match to index.html)
   ============================================ */
@media (max-width: 900px) {
  .nav { padding: 14px 20px; }
  .nav-links {
    display: none; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0;
    background: rgba(6,6,8,0.98); border-bottom: 1px solid var(--border); padding: 24px; gap: 18px; align-items: center;
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
  .hero { padding: 72px 20px 48px; }
  .section { padding: 40px 0; }
  .feature-list { grid-template-columns: 1fr; }
  .footer { padding: 32px 20px; flex-direction: column; text-align: center; }
  .footer-links { justify-content: center; flex-wrap: wrap; }
  .cards-grid { grid-template-columns: 1fr !important; }
  .cards-3 { grid-template-columns: 1fr !important; gap: 12px !important; }
  .stats-grid { grid-template-columns: repeat(2, 1fr) !important; }
}

@media (max-width: 480px) {
  h1 { font-size: 2.2rem; }
  .hero .italic { font-size: 1.6rem; }
  .nav { padding: 14px 16px; }
}