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

:root {
  --bg: #09090b;
  --surface: #18181b;
  --surface-2: #1e1e22;
  --border: #27272a;
  --text: #fafafa;
  --text-muted: #a1a1aa;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --green: #22c55e;
  --radius: 12px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Nav */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(9, 9, 11, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-icon {
  width: 24px;
  height: 24px;
}

.hero-icon {
  width: 120px;
  height: 120px;
  margin: 0 auto 20px;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--text);
}

.nav-github {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Hero */
.hero {
  text-align: center;
  padding: 160px 24px 80px;
  max-width: 800px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 100px;
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.2);
  color: var(--green);
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(36px, 6vw, 60px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 20px;
  background: linear-gradient(to bottom right, #fff, #a1a1aa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 18px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  padding: 12px 28px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--surface-2);
  border-color: #3f3f46;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 17px;
}

.hero-stats {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 32px;
}

.stat {
  text-align: center;
}

.stat strong {
  display: block;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.stat span {
  font-size: 13px;
  color: var(--text-muted);
}

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

/* Features */
.features {
  max-width: 1100px;
  margin: 0 auto;
  padding: 80px 24px;
}

.features h2,
.compare h2,
.how-it-works h2,
.cta h2 {
  text-align: center;
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 48px;
  line-height: 1.2;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: border-color 0.2s;
}

.feature-card:hover {
  border-color: #3f3f46;
}

.feature-icon {
  font-size: 28px;
  margin-bottom: 14px;
}

.feature-card h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Compare */
.compare {
  max-width: 800px;
  margin: 0 auto;
  padding: 80px 24px;
}

.compare-table-wrap {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.compare-table th {
  padding: 16px 20px;
  text-align: left;
  font-weight: 600;
  font-size: 15px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.compare-table th.highlight {
  color: var(--accent);
}

.compare-table td {
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
}

.compare-table td.highlight {
  color: var(--text);
}

.compare-table tr:last-child td {
  border-bottom: none;
}

.compare-table tr:hover td {
  background: var(--surface);
}

/* How it works */
.how-it-works {
  max-width: 900px;
  margin: 0 auto;
  padding: 80px 24px;
}

.how-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.how-step {
  text-align: center;
  padding: 32px 20px;
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
}

.how-step h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.how-step p {
  font-size: 14px;
  color: var(--text-muted);
}

/* CTA */
.cta {
  text-align: center;
  padding: 80px 24px 60px;
  max-width: 600px;
  margin: 0 auto;
}

.cta p {
  color: var(--text-muted);
  font-size: 16px;
  margin-bottom: 28px;
}

.cta-sub {
  margin-top: 16px;
  font-size: 13px;
  color: var(--text-muted);
}

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

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--text-muted);
}

.footer-inner a {
  color: var(--text-muted);
  text-decoration: none;
}

.footer-inner a:hover {
  color: var(--text);
}

/* Responsive */
@media (max-width: 768px) {
  .features-grid {
    grid-template-columns: 1fr;
  }

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

  .hero-stats {
    flex-direction: column;
    gap: 16px;
  }

  .stat-divider {
    width: 40px;
    height: 1px;
  }

  .nav-links a:not(.nav-github) {
    display: none;
  }

  .compare-table {
    font-size: 13px;
  }

  .compare-table th,
  .compare-table td {
    padding: 10px 12px;
  }
}