:root {
  --bg-primary: #0a0e17;
  --bg-secondary: #111827;
  --bg-card: #1a2236;
  --bg-card-highlight: #1e2a42;
  --text-primary: #f0f2f5;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent: #f59e0b;
  --accent-glow: rgba(245, 158, 11, 0.15);
  --accent-secondary: #3b82f6;
  --border: #1e293b;
  --border-accent: rgba(245, 158, 11, 0.3);
  --radius: 12px;
  --radius-sm: 8px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

html { scroll-behavior: smooth; }

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

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px 60px;
  position: relative;
  overflow: hidden;
  background: 
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(245, 158, 11, 0.08), transparent),
    radial-gradient(ellipse 60% 40% at 80% 60%, rgba(59, 130, 246, 0.05), transparent),
    var(--bg-primary);
}

.hero-container {
  max-width: 960px;
  width: 100%;
  text-align: center;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid var(--border-accent);
  margin-bottom: 28px;
  font-family: var(--font-display);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero h1 .accent {
  color: var(--accent);
}

.lede {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-secondary);
  max-width: 620px;
  margin: 0 auto 48px;
  line-height: 1.7;
}

/* Deck Mockup */
.hero-visual {
  margin-top: 20px;
}

.deck-mockup {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  max-width: 680px;
  margin: 0 auto;
  text-align: left;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4), 0 0 0 1px rgba(255,255,255,0.03);
}

.deck-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,0.02);
}

.deck-dots span {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  margin-right: 6px;
}

.deck-dots span:nth-child(1) { background: #ef4444; }
.deck-dots span:nth-child(2) { background: #f59e0b; }
.deck-dots span:nth-child(3) { background: #22c55e; }

.deck-title {
  font-family: var(--font-display);
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
}

.deck-body {
  padding: 18px;
}

.deck-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 12px;
}

.deck-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
  transition: border-color 0.3s;
}

.deck-card.pulse {
  border-color: var(--border-accent);
  box-shadow: 0 0 20px var(--accent-glow);
}

.card-icon { font-size: 1.4rem; margin-bottom: 8px; }
.card-label { font-size: 0.7rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.06em; font-weight: 600; }
.card-value { font-family: var(--font-display); font-size: 1.3rem; font-weight: 700; margin: 4px 0; }
.card-sub { font-size: 0.75rem; color: var(--text-muted); }

.deck-ai-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: rgba(245, 158, 11, 0.06);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  color: var(--accent);
  font-family: var(--font-body);
}

.ai-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  animation: pulse-dot 2s infinite;
  flex-shrink: 0;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ===== STATS ===== */
.stats {
  padding: 60px 24px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-secondary);
}

.stats-container {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
}

.stat { text-align: center; flex: 1; }

.stat-number {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 6px;
  line-height: 1.4;
}

.stat-divider {
  width: 1px;
  height: 50px;
  background: var(--border);
}

/* ===== FEATURES ===== */
.features {
  padding: 100px 24px;
}

.features-container {
  max-width: 960px;
  margin: 0 auto;
}

.features-header {
  text-align: center;
  margin-bottom: 64px;
}

.features-header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.features-sub {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 540px;
  margin: 0 auto;
}

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

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 30px;
  transition: border-color 0.3s, transform 0.3s;
}

.feature-card:hover {
  border-color: rgba(245, 158, 11, 0.2);
  transform: translateY(-2px);
}

.feature-highlight {
  border-color: var(--border-accent);
  background: linear-gradient(135deg, var(--bg-card-highlight), var(--bg-card));
}

.feature-number {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.65;
}

/* ===== HOW ===== */
.how {
  padding: 100px 24px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.how-container {
  max-width: 700px;
  margin: 0 auto;
}

.how h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 56px;
  letter-spacing: -0.02em;
}

.how-steps {
  display: flex;
  flex-direction: column;
  align-items: stretch;
}

.how-step {
  display: flex;
  gap: 24px;
  align-items: flex-start;
}

.step-marker {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent-glow);
  border: 2px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--accent);
  flex-shrink: 0;
}

.step-content h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.step-content p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.6;
}

.how-connector {
  width: 2px;
  height: 32px;
  background: var(--border);
  margin-left: 21px;
}

/* ===== CLOSING ===== */
.closing {
  padding: 100px 24px;
  text-align: center;
  position: relative;
  background: 
    radial-gradient(ellipse 60% 40% at 50% 100%, rgba(245, 158, 11, 0.06), transparent),
    var(--bg-primary);
}

.closing-container {
  max-width: 680px;
  margin: 0 auto;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.closing p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 16px;
}

.closing-tagline {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--accent) !important;
  margin-top: 32px !important;
  letter-spacing: -0.01em;
}

/* ===== FOOTER ===== */
.site-footer {
  padding: 40px 24px;
  text-align: center;
  border-top: 1px solid var(--border);
  background: var(--bg-secondary);
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.footer-tagline {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.footer-legal {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .hero { padding: 60px 20px 40px; }
  .deck-row { grid-template-columns: 1fr; }
  .stats-container { flex-direction: column; gap: 24px; }
  .stat-divider { width: 50px; height: 1px; }
  .features-grid { grid-template-columns: 1fr; }
  .features { padding: 64px 20px; }
  .how { padding: 64px 20px; }
  .closing { padding: 64px 20px; }
  .deck-ai-bar { font-size: 0.72rem; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.9rem; }
  .lede { font-size: 0.95rem; }
  .card-value { font-size: 1.1rem; }
  .feature-card { padding: 24px 20px; }
}