:root {
  --bg-primary: #090d16;
  --bg-secondary: #0f172a;
  --bg-card: rgba(15, 23, 42, 0.75);
  --bg-card-hover: rgba(30, 41, 59, 0.85);
  --border-subtle: rgba(148, 163, 184, 0.12);
  --border-highlight: rgba(139, 92, 246, 0.35);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent-purple: #8b5cf6;
  --accent-blue: #3b82f6;
  --accent-cyan: #06b6d4;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-pink: #ec4899;
  --gradient-brand: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 50%, #ec4899 100%);
  --gradient-glow: radial-gradient(circle at 50% 0%, rgba(139, 92, 246, 0.15) 0%, transparent 70%);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "Fira Code", "JetBrains Mono", Consolas, "Liberation Mono", Menlo, monospace;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 40px -10px rgba(139, 92, 246, 0.3);
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
}

body {
  overflow-x: hidden;
  background-image: 
    radial-gradient(at 0% 0%, rgba(59, 130, 246, 0.12) 0px, transparent 50%),
    radial-gradient(at 100% 0%, rgba(139, 92, 246, 0.15) 0px, transparent 50%),
    radial-gradient(at 50% 100%, rgba(16, 185, 129, 0.08) 0px, transparent 50%);
  background-attachment: fixed;
  min-height: 100vh;
}

a {
  color: var(--accent-cyan);
  text-decoration: none;
  transition: all 0.2s ease;
}

a:hover {
  color: var(--text-primary);
}

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

/* Header & Nav */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(9, 13, 22, 0.8);
  border-bottom: 1px solid var(--border-subtle);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-link {
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
}

.btn-primary {
  background: var(--gradient-brand);
  color: #fff;
  box-shadow: 0 4px 20px rgba(139, 92, 246, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(139, 92, 246, 0.5);
  color: #fff;
}

.btn-outline {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--border-highlight);
}

.btn-sm {
  padding: 6px 14px;
  font-size: 0.85rem;
}

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: 9999px;
  background: rgba(139, 92, 246, 0.15);
  color: #c4b5fd;
  border: 1px solid rgba(139, 92, 246, 0.3);
}

.badge-green {
  background: rgba(16, 185, 129, 0.15);
  color: #6ee7b7;
  border-color: rgba(16, 185, 129, 0.3);
}

/* Hero Section */
.hero {
  padding: 80px 0 60px;
  text-align: center;
  position: relative;
}

.hero-pill {
  margin-bottom: 24px;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.15;
  margin-bottom: 24px;
}

.gradient-text {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 800px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

/* Quick Install Box */
.install-box {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: #0b1120;
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-radius: var(--radius-md);
  padding: 10px 16px;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: #38bdf8;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.copy-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  display: flex;
  align-items: center;
  border-radius: 4px;
  transition: all 0.2s;
}

.copy-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.1);
}

/* Interactive Terminal Section */
.terminal-wrapper {
  max-width: 960px;
  margin: 0 auto 80px;
  background: #050811;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card), var(--shadow-glow);
  overflow: hidden;
  text-align: left;
}

.terminal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  background: #0d1322;
  border-bottom: 1px solid var(--border-subtle);
}

.terminal-dots {
  display: flex;
  gap: 8px;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.dot-red { background: #ef4444; }
.dot-yellow { background: #f59e0b; }
.dot-green { background: #10b981; }

.terminal-tabs {
  display: flex;
  gap: 8px;
}

.terminal-tab {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s;
}

.terminal-tab.active, .terminal-tab:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
}

.terminal-body {
  padding: 24px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  min-height: 280px;
  color: #e2e8f0;
  line-height: 1.7;
  overflow-x: auto;
}

.term-prompt {
  color: #38bdf8;
  font-weight: 600;
}
.term-cmd {
  color: #f8fafc;
  font-weight: bold;
}
.term-success {
  color: #4ade80;
}
.term-warn {
  color: #fbbf24;
}
.term-info {
  color: #a78bfa;
}
.term-sub {
  color: #94a3b8;
}

/* Feature Grid */
.features {
  padding: 80px 0;
  border-top: 1px solid var(--border-subtle);
}

.section-head {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 56px;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  backdrop-filter: blur(12px);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.card:hover {
  border-color: var(--border-highlight);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.5rem;
  background: rgba(139, 92, 246, 0.15);
  color: var(--accent-purple);
  border: 1px solid rgba(139, 92, 246, 0.25);
}

.card-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.card-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Ecosystem Universe */
.ecosystem {
  padding: 80px 0;
  border-top: 1px solid var(--border-subtle);
}

.filter-tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.filter-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 8px 18px;
  border-radius: 9999px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.filter-btn.active, .filter-btn:hover {
  background: var(--accent-purple);
  color: #fff;
  border-color: var(--accent-purple);
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.tool-card {
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  transition: all 0.2s ease;
}

.tool-card:hover {
  border-color: rgba(6, 182, 212, 0.4);
  background: rgba(30, 41, 59, 0.7);
}

.tool-icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: #1e293b;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.tool-info h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.tool-info p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.tool-badge {
  display: inline-block;
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 4px;
  margin-top: 6px;
}
.badge-cli { background: rgba(59, 130, 246, 0.2); color: #93c5fd; }
.badge-api { background: rgba(16, 185, 129, 0.2); color: #6ee7b7; }
.badge-local { background: rgba(245, 158, 11, 0.2); color: #fcd34d; }

/* Comparison Table */
.comparison-section {
  padding: 80px 0;
  border-top: 1px solid var(--border-subtle);
}

.table-wrapper {
  overflow-x: auto;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

.comp-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
}

.comp-table th, .comp-table td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-subtle);
}

.comp-table th {
  background: #0d1527;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.9rem;
}

.comp-table th.highlight, .comp-table td.highlight {
  background: rgba(139, 92, 246, 0.08);
  font-weight: 600;
  color: var(--text-primary);
  border-left: 1px solid var(--border-highlight);
  border-right: 1px solid var(--border-highlight);
}

.check { color: #10b981; font-weight: bold; }
.cross { color: #64748b; }

/* CTA Section */
.cta-section {
  padding: 100px 0;
  text-align: center;
  position: relative;
  background: radial-gradient(circle at center, rgba(139, 92, 246, 0.12) 0%, transparent 70%);
}

.cta-box {
  background: linear-gradient(180deg, rgba(30, 41, 59, 0.8) 0%, rgba(15, 23, 42, 0.95) 100%);
  border: 1px solid var(--border-highlight);
  border-radius: var(--radius-xl);
  padding: 60px 40px;
  max-width: 860px;
  margin: 0 auto;
  box-shadow: var(--shadow-glow);
}

/* Footer */
.footer {
  border-top: 1px solid var(--border-subtle);
  background: #070a12;
  padding: 60px 0 30px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 48px;
}

.footer-col h5 {
  color: var(--text-primary);
  font-size: 1rem;
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-subtle);
  padding-top: 24px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Responsive */
@media (max-width: 768px) {
  .hero-title { font-size: 2.5rem; }
  .hero-subtitle { font-size: 1.05rem; }
  .nav-links { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
}