:root {
  --bg: #0a0a0f;
  --bg-elevated: #12121a;
  --fg: #e8e8ed;
  --fg-muted: #8a8a9a;
  --accent: #6366f1;
  --accent-light: #818cf8;
  --gradient-start: #6366f1;
  --gradient-end: #a855f7;
  --green: #34d399;
  --red: #f87171;
  --border: rgba(255,255,255,0.06);
  --radius: 16px;
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'DM Sans', sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  line-height: 1.15;
}

/* Hero */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(ellipse, rgba(99,102,241,0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  max-width: 720px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 100px;
  background: rgba(99,102,241,0.1);
  border: 1px solid rgba(99,102,241,0.3);
  color: var(--accent-light);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  margin-bottom: 32px;
}

.hero h1 {
  font-size: clamp(2.8rem, 7vw, 4.5rem);
  margin-bottom: 24px;
  letter-spacing: -0.03em;
}

.gradient-text {
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.lede {
  font-size: 1.2rem;
  color: var(--fg-muted);
  max-width: 580px;
  margin: 0 auto 48px;
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  padding: 24px 40px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

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

.stat-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-light);
}

.stat-label {
  font-size: 0.8rem;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

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

/* Features */
.features {
  padding: 100px 24px;
  max-width: 1000px;
  margin: 0 auto;
}

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

.feature-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  transition: border-color 0.2s;
}

.feature-card:hover {
  border-color: rgba(99,102,241,0.3);
}

.feature-large {
  grid-column: 1 / -1;
}

.feature-icon {
  font-size: 1.8rem;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--fg-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* How / Comparison */
.how {
  padding: 100px 24px;
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.how h2 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.how-subtitle {
  color: var(--fg-muted);
  font-size: 1.05rem;
  margin-bottom: 48px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  text-align: left;
}

.comparison-col {
  padding: 32px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.comparison-col.bad {
  background: rgba(248,113,113,0.03);
  border-color: rgba(248,113,113,0.15);
}

.comparison-col.good {
  background: rgba(52,211,153,0.03);
  border-color: rgba(52,211,153,0.15);
}

.comparison-col h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 20px;
}

.comparison-col.bad h4 { color: var(--red); }
.comparison-col.good h4 { color: var(--green); }

.comparison-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.comparison-col ul li {
  font-size: 0.95rem;
  color: var(--fg-muted);
  padding-left: 20px;
  position: relative;
}

.comparison-col.bad ul li::before {
  content: '×';
  position: absolute;
  left: 0;
  color: var(--red);
  font-weight: 700;
}

.comparison-col.good ul li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--green);
  font-weight: 700;
}

/* Closing */
.closing {
  padding: 120px 24px;
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}

.closing h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  line-height: 1.3;
}

.closing-text {
  color: var(--fg-muted);
  font-size: 1.05rem;
  line-height: 1.7;
}

/* Footer */
.site-footer {
  padding: 40px 24px;
  border-top: 1px solid var(--border);
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--fg-muted);
  font-size: 0.85rem;
}

.footer-brand {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  color: var(--fg);
}

.footer-divider {
  opacity: 0.4;
}

/* Responsive */
@media (max-width: 640px) {
  .hero-stats {
    flex-direction: column;
    gap: 16px;
    padding: 24px;
  }
  
  .stat-divider {
    width: 40px;
    height: 1px;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .comparison {
    grid-template-columns: 1fr;
  }
  
  .hero {
    min-height: auto;
    padding: 60px 20px;
  }
}