/* Typography */
:root {
  --bg: #0D0D0D;
  --bg-alt: #141414;
  --fg: #F0EDE8;
  --fg-muted: #8A8680;
  --accent: #F59E0B;
  --accent-dim: rgba(245,158,11,0.15);
  --border: rgba(240,237,232,0.08);
  --grade-a: #22C55E;
  --grade-c: #F59E0B;
  --grade-f: #EF4444;
  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Navbar */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 48px;
  border-bottom: 1px solid var(--border);
}
.nav-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.5px;
  color: var(--fg);
}
.nav-tagline {
  font-size: 12px;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

/* Section Labels */
.section-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent);
  margin-bottom: 16px;
  font-weight: 600;
}
.section-headline {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1.1;
  letter-spacing: -1px;
  margin-bottom: 24px;
  color: var(--fg);
}
.section-headline em {
  font-style: italic;
  color: var(--accent);
}

/* Hero */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  padding: 80px 48px 100px;
  align-items: center;
}
.hero-badge {
  display: inline-block;
  padding: 6px 14px;
  border: 1px solid var(--accent);
  border-radius: 100px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--accent);
  margin-bottom: 28px;
}
.hero-headline {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(40px, 6vw, 68px);
  line-height: 1.05;
  letter-spacing: -2px;
  color: var(--fg);
  margin-bottom: 24px;
}
.hero-sub {
  font-size: 17px;
  color: var(--fg-muted);
  max-width: 480px;
  line-height: 1.7;
  margin-bottom: 40px;
}
.hero-proof {
  display: flex;
  align-items: center;
  gap: 32px;
}
.proof-stat {
  display: flex;
  flex-direction: column;
}
.proof-number {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
}
.proof-label {
  font-size: 12px;
  color: var(--fg-muted);
  margin-top: 6px;
  line-height: 1.4;
}
.proof-divider {
  width: 1px;
  height: 48px;
  background: var(--border);
}

/* Chat Window */
.chat-window {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  font-size: 14px;
  box-shadow: 0 32px 80px rgba(0,0,0,0.5);
}
.chat-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
}
.chat-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent);
  color: #000;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.chat-name { font-weight: 600; font-size: 14px; }
.chat-status { font-size: 11px; color: var(--grade-a); }
.chat-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-height: 340px;
  overflow-y: auto;
}
.chat-bubble {
  padding: 10px 14px;
  border-radius: 12px;
  max-width: 75%;
  line-height: 1.5;
}
.chat-bubble.bot {
  background: rgba(255,255,255,0.06);
  color: var(--fg);
  align-self: flex-start;
  border-bottom-left-radius: 4px;
}
.chat-bubble.user {
  background: var(--accent);
  color: #000;
  align-self: flex-end;
  border-bottom-right-radius: 4px;
  font-weight: 500;
}
.chat-bubble.system {
  background: var(--accent-dim);
  color: var(--accent);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  align-self: center;
  border-radius: 100px;
  padding: 6px 14px;
}

/* Simulation Section */
.simulation {
  padding: 100px 48px;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
}
.simulation-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  margin-top: 48px;
}
.sim-card {
  background: var(--bg-alt);
  padding: 36px 28px;
}
.sim-card.featured {
  background: var(--accent-dim);
  border-left: 2px solid var(--accent);
}
.sim-card-num {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 1px;
  margin-bottom: 16px;
}
.sim-card h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--fg);
}
.sim-card p {
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.6;
}
.sim-card.featured h3 { color: var(--accent); }

/* Report Section */
.report {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  padding: 100px 48px;
  align-items: start;
}
.report-desc {
  font-size: 16px;
  color: var(--fg-muted);
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 420px;
}
.report-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 32px;
}
.metric {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
}
.metric-score {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 6px;
  line-height: 1;
}
.metric-score.fail { color: var(--grade-f); }
.metric-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}
.metric-note {
  font-size: 12px;
  color: var(--fg-muted);
  line-height: 1.5;
}
.report-action { margin-top: 24px; }
.report-score-badge {
  display: inline-flex;
  flex-direction: column;
  border: 2px solid var(--grade-f);
  border-radius: 12px;
  padding: 16px 24px;
  margin-bottom: 12px;
}
.report-grade {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 800;
  color: var(--grade-f);
  line-height: 1;
}
.report-overall {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--fg-muted);
  margin-top: 4px;
}
.report-action-note {
  font-size: 13px;
  color: var(--fg-muted);
  font-style: italic;
}

/* Report Card (Right Side) */
.report-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  margin-top: 40px;
}
.report-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  background: rgba(255,255,255,0.04);
  border-bottom: 1px solid var(--border);
  font-size: 12px;
  font-weight: 600;
}
.report-date { color: var(--fg-muted); }
.report-scores { padding: 20px; display: flex; flex-direction: column; gap: 16px; }
.rscore {
  display: grid;
  grid-template-columns: 160px 1fr 36px;
  align-items: center;
  gap: 12px;
  font-size: 13px;
}
.rscore span:first-child { color: var(--fg-muted); }
.rscore-bar {
  height: 4px;
  background: rgba(255,255,255,0.1);
  border-radius: 2px;
}
.rscore-fill {
  height: 100%;
  border-radius: 2px;
  background: var(--grade-f);
}
.rscore-val { font-weight: 700; text-align: right; }
.rscore.overall .rscore-fill { background: var(--grade-f); }
.report-card-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  font-size: 11px;
  color: var(--accent);
  text-align: center;
  letter-spacing: 0.5px;
}

/* Live Section */
.live {
  padding: 100px 48px;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
}
.live-desc {
  font-size: 16px;
  color: var(--fg-muted);
  max-width: 520px;
  line-height: 1.7;
  margin-bottom: 40px;
}
.live-features { display: flex; flex-direction: column; gap: 16px; margin-bottom: 48px; }
.live-feature {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 15px;
  color: var(--fg);
}
.live-icon {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}
.live-coach {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(255,255,255,0.03);
  width: fit-content;
}
.coach-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--accent);
  color: #000;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.coach-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  color: var(--fg);
}
.coach-title { font-size: 13px; color: var(--fg-muted); margin-top: 2px; }

/* Closing */
.closing {
  padding: 120px 48px;
  text-align: center;
  border-top: 1px solid var(--border);
}
.closing-inner { max-width: 680px; margin: 0 auto; }
.closing h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 24px;
  color: var(--fg);
}
.closing p {
  font-size: 16px;
  color: var(--fg-muted);
  line-height: 1.7;
  margin-bottom: 40px;
}
.closing-tagline {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.5px;
}

/* Footer */
footer {
  padding: 32px 48px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  color: var(--fg);
}
.footer-note { font-size: 13px; color: var(--fg-muted); }

/* Responsive */
@media (max-width: 1024px) {
  .hero { grid-template-columns: 1fr; padding: 60px 32px 80px; }
  .hero-visual { display: none; }
  .simulation-grid { grid-template-columns: 1fr 1fr; }
  .report { grid-template-columns: 1fr; }
  .report-visual { display: none; }
  .navbar { padding: 16px 32px; }
  .section-headline { font-size: 32px; }
}

@media (max-width: 640px) {
  .hero { padding: 48px 24px 64px; }
  .simulation { padding: 64px 24px; }
  .simulation-grid { grid-template-columns: 1fr; }
  .report { padding: 64px 24px; }
  .report-metrics { grid-template-columns: 1fr; }
  .live { padding: 64px 24px; }
  .closing { padding: 80px 24px; }
  footer { padding: 24px; flex-direction: column; gap: 8px; text-align: center; }
  .navbar { padding: 14px 24px; }
  .hero-proof { flex-direction: column; align-items: flex-start; gap: 16px; }
  .proof-divider { display: none; }
  .rscore { grid-template-columns: 120px 1fr 36px; }
}