:root {
  --bg: #0a0a0b;
  --surface: #141416;
  --surface-2: #1c1c1f;
  --border: #2a2a2e;
  --text: #e4e4e7;
  --text-muted: #71717a;
  --primary: #6366f1;
  --primary-hover: #818cf8;
  --success: #22c55e;
  --danger: #ef4444;
  --gradient: linear-gradient(135deg, #6366f1, #8b5cf6, #a78bfa);
}

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

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

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-hover); }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* Nav */
nav {
  position: fixed; top: 0; width: 100%; z-index: 100;
  background: rgba(10,10,11,0.8); backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
nav .container {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.logo { font-size: 1.25rem; font-weight: 700; background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
nav .links { display: flex; gap: 24px; align-items: center; }
nav .links a { color: var(--text-muted); font-size: 0.9rem; transition: color .2s; }
nav .links a:hover { color: var(--text); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 20px; border-radius: 8px; font-size: 0.9rem;
  font-weight: 500; border: none; cursor: pointer; transition: all .2s;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); transform: translateY(-1px); }
.btn-outline { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-sm { padding: 6px 14px; font-size: 0.8rem; }

/* Hero */
.hero {
  padding: 160px 0 100px; text-align: center;
  background: radial-gradient(ellipse at 50% 0%, rgba(99,102,241,0.15) 0%, transparent 60%);
}
.hero h1 {
  font-size: 4rem; font-weight: 800; letter-spacing: -0.03em;
  background: linear-gradient(to bottom, #fff, #a1a1aa);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  margin-bottom: 20px;
}
.hero p { font-size: 1.25rem; color: var(--text-muted); max-width: 600px; margin: 0 auto 40px; }

/* Code block */
.code-block {
  background: var(--surface); border: 1px solid var(--border); border-radius: 12px;
  padding: 24px 32px; max-width: 700px; margin: 40px auto 0;
  text-align: left; font-family: 'SF Mono', 'Fira Code', monospace; font-size: 0.9rem;
  color: var(--text-muted); overflow-x: auto;
}
.code-block .keyword { color: #c084fc; }
.code-block .string { color: #34d399; }
.code-block .comment { color: #52525b; }

/* Features */
.features {
  padding: 100px 0;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}
.feature-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 16px;
  padding: 32px; transition: border-color .3s;
}
.feature-card:hover { border-color: var(--primary); }
.feature-card .icon { font-size: 2rem; margin-bottom: 16px; }
.feature-card h3 { font-size: 1.1rem; margin-bottom: 8px; }
.feature-card p { color: var(--text-muted); font-size: 0.9rem; }

/* Pricing */
.pricing { padding: 100px 0; text-align: center; }
.pricing h2 { font-size: 2.5rem; font-weight: 700; margin-bottom: 12px; }
.pricing .subtitle { color: var(--text-muted); margin-bottom: 48px; }
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; max-width: 960px; margin: 0 auto; }
.price-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 16px;
  padding: 40px 32px; position: relative; transition: border-color .3s;
}
.price-card.featured { border-color: var(--primary); }
.price-card.featured::before {
  content: 'Popular'; position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: var(--gradient); color: #fff; padding: 4px 16px; border-radius: 20px;
  font-size: 0.75rem; font-weight: 600;
}
.price-card h3 { font-size: 1.2rem; margin-bottom: 8px; }
.price-card .price { font-size: 3rem; font-weight: 800; margin: 16px 0; }
.price-card .price span { font-size: 1rem; color: var(--text-muted); font-weight: 400; }
.price-card ul { list-style: none; margin: 24px 0; text-align: left; }
.price-card ul li { padding: 8px 0; color: var(--text-muted); font-size: 0.9rem; }
.price-card ul li::before { content: "\2713"; color: var(--success); margin-right: 10px; font-weight: 700; }

/* Footer */
footer {
  padding: 48px 0; border-top: 1px solid var(--border);
  text-align: center; color: var(--text-muted); font-size: 0.85rem;
}

/* Auth forms */
.auth-page {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: radial-gradient(ellipse at 50% 0%, rgba(99,102,241,0.1) 0%, transparent 60%);
}
.auth-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 16px;
  padding: 48px; width: 100%; max-width: 420px;
}
.auth-card h2 { font-size: 1.5rem; margin-bottom: 8px; }
.auth-card .subtitle { color: var(--text-muted); margin-bottom: 32px; font-size: 0.9rem; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.85rem; color: var(--text-muted); margin-bottom: 6px; }
.form-group input {
  width: 100%; padding: 12px 16px; background: var(--surface-2); border: 1px solid var(--border);
  border-radius: 8px; color: var(--text); font-size: 0.95rem; outline: none; transition: border-color .2s;
}
.form-group input:focus { border-color: var(--primary); }
.auth-card .btn { width: 100%; justify-content: center; padding: 12px; margin-top: 8px; }
.auth-card .footer-link { text-align: center; margin-top: 24px; font-size: 0.85rem; color: var(--text-muted); }

/* Dashboard */
.dashboard { padding: 100px 0 60px; }
.dash-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 32px; }
.dash-header h1 { font-size: 1.8rem; }
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 40px; }
.stat-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 24px;
}
.stat-card .label { font-size: 0.8rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; }
.stat-card .value { font-size: 2rem; font-weight: 700; margin-top: 4px; }
.stat-card .bar { height: 4px; background: var(--surface-2); border-radius: 2px; margin-top: 12px; }
.stat-card .bar-fill { height: 100%; background: var(--gradient); border-radius: 2px; transition: width .5s; }

.section-title { font-size: 1.2rem; font-weight: 600; margin-bottom: 16px; }
.key-table { width: 100%; border-collapse: collapse; }
.key-table th, .key-table td {
  text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--border); font-size: 0.9rem;
}
.key-table th { color: var(--text-muted); font-weight: 500; font-size: 0.8rem; text-transform: uppercase; }
.key-table code { background: var(--surface-2); padding: 4px 8px; border-radius: 4px; font-size: 0.8rem; }
.badge { padding: 4px 10px; border-radius: 20px; font-size: 0.75rem; font-weight: 600; }
.badge-active { background: rgba(34,197,94,0.15); color: var(--success); }
.badge-inactive { background: rgba(239,68,68,0.15); color: var(--danger); }

.plan-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-top: 24px; }