:root {
  --bg: #0a0a0a;
  --bg-2: #121212;
  --surface: #1a1a1a;
  --surface-hi: #222222;
  --border: #2a2a2a;
  --border-hi: #3a3a3a;
  --text: #f4f1ec;
  --text-dim: #a0988f;
  --text-muted: #6a635c;
  --accent: #c04a2b;
  --accent-2: #e06a3a;
  --accent-soft: rgba(192, 74, 43, 0.18);
  --accent-glow: rgba(192, 74, 43, 0.35);
  --success: #4ade80;
  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --container: 1280px;
  --radius: 14px;
  --radius-lg: 22px;
  --t: 0.32s cubic-bezier(0.2, 0.8, 0.2, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { background: var(--bg); color: var(--text); font-family: var(--font); font-size: 16px; line-height: 1.55; -webkit-font-smoothing: antialiased; }
body { min-height: 100vh; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
::selection { background: var(--accent); color: var(--bg); }
.container { width: min(var(--container), 100% - 48px); margin-inline: auto; }

body::before {
  content: ''; position: fixed; inset: 0; z-index: -2;
  background:
    radial-gradient(1000px 600px at 12% 5%, rgba(192, 74, 43, 0.10), transparent 60%),
    radial-gradient(800px 500px at 90% 60%, rgba(110, 40, 60, 0.08), transparent 65%);
}

/* Nav */
.nav { position: sticky; top: 0; z-index: 50; background: rgba(10, 10, 10, 0.82); backdrop-filter: saturate(180%) blur(14px); -webkit-backdrop-filter: saturate(180%) blur(14px); border-bottom: 1px solid var(--border); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { font-weight: 900; font-size: 17px; letter-spacing: 0.04em; display: flex; align-items: center; gap: 10px; text-transform: uppercase; }
.brand-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 14px var(--accent-glow); }
.back-link { color: var(--text-dim); font-size: 14px; font-weight: 500; transition: color var(--t); display: inline-flex; align-items: center; gap: 6px; }
.back-link:hover { color: var(--text); }

/* Hero */
.hero { padding: 88px 0 48px; }
.hero-label { display: inline-flex; align-items: center; gap: 10px; padding: 8px 16px; border: 1px solid var(--border-hi); border-radius: 999px; font-size: 13px; color: var(--text-dim); background: rgba(26, 26, 26, 0.6); margin-bottom: 28px; }
.hero-label .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--success); }
.hero h1 { font-weight: 900; font-size: clamp(48px, 7vw, 104px); line-height: 0.96; letter-spacing: -0.035em; margin-bottom: 24px; }
.hero h1 .accent { background: linear-gradient(120deg, var(--accent) 0%, var(--accent-2) 60%, #f4a66a 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-sub { font-size: clamp(17px, 1.7vw, 22px); color: var(--text-dim); max-width: 720px; line-height: 1.5; }
.eyebrow { color: var(--accent); font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.16em; display: block; margin-bottom: 12px; }

/* Section headings */
.section-head { margin-bottom: 36px; }
.section-head h2 { font-size: clamp(30px, 3.6vw, 48px); font-weight: 900; line-height: 1.05; letter-spacing: -0.025em; }
.section-head p { color: var(--text-dim); margin-top: 10px; font-size: 16px; max-width: 640px; }

/* Compare ONE parameter */
.compare-one { padding: 60px 0 80px; }
.compare-head { margin-bottom: 28px; }
.param-tabs { display: flex; flex-wrap: wrap; gap: 8px; }
.param-tab {
  padding: 12px 20px; border-radius: 999px; background: var(--surface);
  border: 1px solid var(--border); color: var(--text-dim); font-size: 14px; font-weight: 600;
  cursor: pointer; transition: border-color var(--t), color var(--t), background var(--t), transform var(--t);
}
.param-tab:hover { color: var(--text); border-color: var(--border-hi); transform: translateY(-1px); }
.param-tab.active { background: var(--text); color: var(--bg); border-color: var(--text); }

.leaderboard {
  padding: 26px 30px;
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  background: var(--surface);
}
.lb-row {
  display: grid;
  grid-template-columns: 44px 240px 1fr 60px;
  align-items: center;
  gap: 18px;
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
  transition: background var(--t);
}
.lb-row:last-child { border-bottom: 0; }
.lb-row:hover { background: rgba(255,255,255,.02); }
.lb-rank {
  font-family: ui-monospace, monospace; font-weight: 700;
  font-size: 14px; color: var(--text-muted); text-align: right;
}
.lb-row.top .lb-rank { color: var(--accent-2); }
.lb-model { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.lb-name { font-weight: 800; font-size: 16px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.lb-vendor { color: var(--text-muted); font-size: 11px; text-transform: uppercase; letter-spacing: 0.1em; }
.lb-track {
  position: relative; height: 16px; background: rgba(255,255,255,.04);
  border-radius: 999px; overflow: hidden; border: 1px solid var(--border);
}
.lb-fill {
  position: absolute; left: 0; top: 0; bottom: 0;
  background: linear-gradient(90deg, var(--fill-start, var(--accent)), var(--fill-end, var(--accent-2)));
  border-radius: 999px; transition: width 0.9s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.lb-row.top .lb-fill {
  background: linear-gradient(90deg, #f4a66a, var(--accent-2) 60%, var(--accent));
  box-shadow: 0 0 18px var(--accent-glow);
}
.lb-score {
  font-family: ui-monospace, monospace;
  font-weight: 800; font-size: 18px;
  text-align: right; font-variant-numeric: tabular-nums;
}
.lb-score small { color: var(--text-muted); font-weight: 500; font-size: 12px; }

/* All parameters grid */
.compare-all { padding: 80px 0 100px; }
.profile-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.profile {
  padding: 26px 28px;
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  background: var(--surface);
  position: relative; overflow: hidden;
  transition: border-color var(--t), transform var(--t);
}
.profile:hover { border-color: var(--border-hi); transform: translateY(-2px); }
.profile::before {
  content: ''; position: absolute; inset: 0 0 auto 0; height: 3px;
  background: var(--pcolor, var(--accent)); opacity: 0.85;
}
.profile-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 14px; margin-bottom: 6px; }
.profile-name { font-weight: 900; font-size: 22px; letter-spacing: -0.015em; line-height: 1.15; }
.profile-vendor { color: var(--text-muted); font-size: 11px; text-transform: uppercase; letter-spacing: 0.12em; font-weight: 600; margin-top: 2px; }
.tier-pill { padding: 4px 10px; border-radius: 999px; font-size: 10px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; background: var(--bg-2); color: var(--text-dim); border: 1px solid var(--border); }
.tier-premium { color: #f4a66a; border-color: rgba(192,74,43,.4); }
.tier-balanced { color: #9bb1ff; border-color: rgba(100,140,240,.3); }
.tier-fast { color: #7de6b8; border-color: rgba(90,200,150,.3); }

.bars { margin-top: 18px; display: flex; flex-direction: column; gap: 10px; }
.bar-row { display: grid; grid-template-columns: 128px 1fr 34px; align-items: center; gap: 14px; }
.bar-label { color: var(--text-dim); font-size: 13px; font-weight: 600; }
.bar-track { position: relative; height: 10px; background: rgba(255,255,255,.04); border-radius: 999px; border: 1px solid var(--border); overflow: hidden; }
.bar-fill { position: absolute; left: 0; top: 0; bottom: 0; border-radius: 999px; background: linear-gradient(90deg, var(--accent), var(--accent-2)); transition: width 0.9s cubic-bezier(0.2, 0.8, 0.2, 1); }
.bar-score { text-align: right; font-family: ui-monospace, monospace; font-weight: 700; font-size: 13px; color: var(--text); font-variant-numeric: tabular-nums; }
.profile-meta { display: flex; gap: 14px; flex-wrap: wrap; padding-top: 16px; margin-top: 16px; border-top: 1px solid var(--border); color: var(--text-muted); font-size: 12px; }
.profile-meta span { display: inline-flex; align-items: center; gap: 6px; }
.profile-meta b { color: var(--text); font-weight: 700; font-variant-numeric: tabular-nums; }

/* CTA */
.cta { padding: 100px 0 80px; text-align: center; }
.cta h2 { font-size: clamp(38px, 5vw, 78px); font-weight: 900; line-height: 0.98; letter-spacing: -0.03em; }
.cta h2 .accent { background: linear-gradient(120deg, var(--accent) 0%, var(--accent-2) 60%, #f4a66a 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.cta p { color: var(--text-dim); max-width: 520px; margin: 22px auto 36px; font-size: 17px; }
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 15px 26px; border-radius: 999px; font-weight: 600; font-size: 15px; transition: transform var(--t), background var(--t), border-color var(--t); cursor: pointer; }
.btn-primary { background: var(--accent); color: var(--text); box-shadow: 0 10px 30px var(--accent-glow); }
.btn-primary:hover { transform: translateY(-2px); background: var(--accent-2); }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--border-hi); }
.btn-ghost:hover { border-color: var(--text); transform: translateY(-2px); }
.cta-row { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* Footer */
.footer { padding: 40px 0; border-top: 1px solid var(--border); color: var(--text-muted); font-size: 13px; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer-mini { color: var(--text-muted); font-size: 12px; max-width: 640px; }

@media (max-width: 1080px) {
  .profile-grid { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .hero { padding: 64px 0 32px; }
  .compare-one { padding: 44px 0 60px; }
  .compare-all { padding: 60px 0 80px; }
  .cta { padding: 72px 0; }
  .leaderboard { padding: 18px 16px; }
  .lb-row { grid-template-columns: 36px 1fr 52px; grid-template-areas: "rank model score" "track track track"; gap: 10px; padding: 14px 0; }
  .lb-rank { grid-area: rank; text-align: left; }
  .lb-model { grid-area: model; }
  .lb-score { grid-area: score; }
  .lb-track { grid-area: track; }
  .bar-row { grid-template-columns: 92px 1fr 30px; gap: 10px; }
  .bar-label { font-size: 12px; }
  .profile { padding: 22px 20px; }
}