:root {
  --bg: #0A0A0F;
  --surface: #13131C;
  --surface-2: #1A1A28;
  --border: #252535;
  --accent: #E8A838;
  --accent-dim: rgba(232, 168, 56, 0.12);
  --text-primary: #F0EEE8;
  --text-secondary: #8A8899;
  --text-muted: #55556A;
  --font-display: 'Syne', system-ui, sans-serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
}

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

html { scroll-behavior: smooth; }

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

/* NAV */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 48px;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.nav-tagline {
  font-size: 13px;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* SECTIONS */
.section-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 48px;
}

.section-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}

.section-heading {
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 48px;
}

/* HERO */
.hero {
  padding: 100px 0 120px;
  background: var(--bg);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -100px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(232, 168, 56, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 48px;
}

.hero-eyebrow {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(40px, 5.5vw, 64px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.035em;
  color: var(--text-primary);
  margin-bottom: 28px;
}

.hero-lede {
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.65;
  max-width: 440px;
  margin-bottom: 48px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 28px;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-num {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--border);
}

/* MOCKUP */
.hero-visual {
  position: relative;
}

.mockup-frame {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 0 80px rgba(232, 168, 56, 0.06), 0 32px 80px rgba(0,0,0,0.5);
}

.mockup-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--surface-2);
}

.mockup-dots {
  display: flex;
  gap: 5px;
}

.mockup-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border);
}

.mockup-title {
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-body);
  letter-spacing: 0.03em;
}

.mockup-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.transcript-line {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 600;
  flex-shrink: 0;
}

.user-avatar {
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid rgba(232, 168, 56, 0.3);
}

.ai-avatar {
  background: var(--surface-2);
  border: 1px solid var(--border);
}

.bubble {
  padding: 10px 14px;
  border-radius: 12px;
  font-size: 12.5px;
  line-height: 1.55;
}

.user-bubble {
  background: var(--surface-2);
  color: var(--text-secondary);
  border-bottom-left-radius: 4px;
}

.ai-bubble {
  background: var(--surface-2);
  color: var(--text-primary);
  border-bottom-right-radius: 4px;
}

.session-score {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--accent-dim);
  border: 1px solid rgba(232, 168, 56, 0.2);
  border-radius: 10px;
  padding: 10px 14px;
  margin-top: 4px;
}

.score-label {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.score-value {
  display: flex;
  align-items: baseline;
  gap: 2px;
}

.score-num {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 800;
  color: var(--accent);
}

.score-max {
  font-size: 12px;
  color: var(--text-muted);
}

.dimension-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.dim-name {
  font-size: 11px;
  color: var(--text-muted);
  width: 110px;
  flex-shrink: 0;
}

.dim-bar {
  flex: 1;
  height: 4px;
  background: var(--surface-2);
  border-radius: 2px;
  overflow: hidden;
}

.dim-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 2px;
}

.dim-score {
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
  width: 24px;
  text-align: right;
}

/* HOW IT WORKS */
.how-it-works {
  padding: 120px 0;
  border-top: 1px solid var(--border);
}

.steps-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: start;
  gap: 0;
}

.step-card {
  padding: 32px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
}

.step-num {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 20px;
}

.step-icon {
  margin-bottom: 20px;
}

.step-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.step-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.step-connector {
  display: flex;
  align-items: center;
  padding-top: 80px;
  padding-left: 20px;
  padding-right: 20px;
}

/* WHY */
.why-section {
  padding: 120px 0;
  border-top: 1px solid var(--border);
  background: var(--surface);
}

.why-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.why-body {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

.why-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.why-card {
  padding: 24px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.why-card-icon {
  margin-bottom: 14px;
}

.why-card h4 {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.why-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* VOICE */
.voice-section {
  padding: 120px 0;
  border-top: 1px solid var(--border);
}

.voice-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.voice-card {
  padding: 40px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.waveform {
  display: flex;
  align-items: center;
  gap: 4px;
  height: 64px;
}

.waveform span {
  display: block;
  width: 4px;
  border-radius: 2px;
  background: var(--accent);
  opacity: 0.7;
  animation: wave 1.4s ease-in-out infinite;
}

.waveform span:nth-child(1) { animation-delay: 0s; }
.waveform span:nth-child(2) { animation-delay: 0.1s; }
.waveform span:nth-child(3) { animation-delay: 0.2s; }
.waveform span:nth-child(4) { animation-delay: 0.3s; }
.waveform span:nth-child(5) { animation-delay: 0.4s; }
.waveform span:nth-child(6) { animation-delay: 0.15s; }
.waveform span:nth-child(7) { animation-delay: 0.25s; }
.waveform span:nth-child(8) { animation-delay: 0.05s; }
.waveform span:nth-child(9) { animation-delay: 0.35s; }
.waveform span:nth-child(10) { animation-delay: 0.45s; }
.waveform span:nth-child(11) { animation-delay: 0.2s; }
.waveform span:nth-child(12) { animation-delay: 0.3s; }
.waveform span:nth-child(13) { animation-delay: 0.1s; }
.waveform span:nth-child(14) { animation-delay: 0.25s; }
.waveform span:nth-child(15) { animation-delay: 0.05s; }
.waveform span:nth-child(16) { animation-delay: 0.15s; }
.waveform span:nth-child(17) { animation-delay: 0.35s; }
.waveform span:nth-child(18) { animation-delay: 0.4s; }

@keyframes wave {
  0%, 100% { transform: scaleY(1); opacity: 0.7; }
  50% { transform: scaleY(0.4); opacity: 0.4; }
}

.voice-title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.voice-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.radar-chart {
  position: relative;
  width: 120px;
  height: 120px;
  margin: 0 auto;
}

.radar-ring {
  position: absolute;
  border: 1px solid var(--border);
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.radar-ring:nth-child(1) { width: 30px; height: 30px; }
.radar-ring:nth-child(2) { width: 70px; height: 70px; }
.radar-ring:nth-child(3) { width: 110px; height: 110px; }

.radar-axis {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 1px;
  height: 55px;
  background: var(--border);
  transform-origin: bottom center;
}

.radar-data {
  position: absolute;
  top: 0; left: 0;
  width: 120px;
  height: 120px;
  background: rgba(232, 168, 56, 0.2);
  border: 1px solid rgba(232, 168, 56, 0.5);
}

.radar-label {
  position: absolute;
  font-size: 10px;
  color: var(--text-muted);
  white-space: nowrap;
  letter-spacing: 0.04em;
}

/* CLOSING */
.closing-section {
  padding: 140px 0;
  border-top: 1px solid var(--border);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.closing-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 500px;
  height: 300px;
  background: radial-gradient(ellipse, rgba(232, 168, 56, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.closing-headline {
  font-family: var(--font-display);
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 24px;
}

.closing-body {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.65;
}

/* FOOTER */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 48px 0;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.footer-tagline {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.footer-links {
  font-size: 12px;
  color: var(--text-muted);
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .nav { padding: 16px 24px; }
  .nav-tagline { display: none; }

  .hero-content {
    grid-template-columns: 1fr;
    gap: 48px;
    padding: 0 24px;
  }

  .hero { padding: 64px 0 80px; }

  .steps-grid {
    grid-template-columns: 1fr;
  }

  .step-connector { display: none; }

  .why-grid {
    grid-template-columns: 1fr;
  }

  .why-cards {
    grid-template-columns: 1fr;
  }

  .voice-grid {
    grid-template-columns: 1fr;
  }

  .section-inner { padding: 0 24px; }

  .hero-stats {
    flex-wrap: wrap;
    gap: 20px;
  }
}