:root {
  --bg-dark: #0b0f19;
  --bg-card: #111827;
  --bg-card-hover: #1f2937;
  --bg-alt: #0d1322;
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --text-dim: #6b7280;
  --accent-primary: #3b82f6;
  --accent-glow: rgba(59, 130, 246, 0.15);
  --accent-secondary: #6366f1;
  --border-color: #1f2937;
  --code-bg: #030712;
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

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

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

a:hover {
  color: #60a5fa;
}

/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(11, 15, 25, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  color: #ffffff;
}

.brand-logo {
  color: var(--accent-primary);
}

.brand-sub {
  color: #ffffff;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 500;
}

.nav-links a:hover {
  color: #ffffff;
}

.nav-github-link {
  background-color: var(--bg-card);
  padding: 0.4rem 0.9rem;
  border-radius: 6px;
  border: 1px solid var(--border-color);
}

/* Hero Section */
.hero {
  padding: 6rem 1.5rem 5rem;
  text-align: center;
  background: radial-gradient(circle at 50% 20%, var(--accent-glow) 0%, transparent 60%);
}

.hero-container {
  max-width: 800px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  padding: 0.35rem 0.9rem;
  background-color: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.3);
  color: #60a5fa;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, #ffffff 0%, #9ca3af 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.35rem;
  font-weight: 600;
  color: #e5e7eb;
  margin-bottom: 0.75rem;
}

.hero-tagline {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.2s ease;
}

.btn-icon {
  width: 18px;
  height: 18px;
}

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

.btn-primary:hover {
  background-color: #2563eb;
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

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

.btn-secondary:hover {
  background-color: var(--bg-card-hover);
  color: #ffffff;
  border-color: #374151;
}

/* Metrics Section */
.metrics {
  border-y: 1px solid var(--border-color);
  background-color: var(--bg-alt);
  padding: 2.5rem 1.5rem;
}

.metrics-container {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.5rem;
  text-align: center;
}

.metric-card {
  padding: 1rem;
}

.metric-value {
  display: block;
  font-size: 2.25rem;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: -0.02em;
}

.metric-label {
  font-size: 0.875rem;
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Section Shared */
.section {
  padding: 5rem 1.5rem;
}

.section-alt {
  background-color: var(--bg-alt);
  border-y: 1px solid var(--border-color);
}

.section-container {
  max-width: 1100px;
  margin: 0 auto;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.section-subtitle {
  text-align: center;
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 3rem;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.feature-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 1.75rem;
  border-radius: 12px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.feature-card:hover {
  transform: translateY(-2px);
  border-color: #374151;
}

.feature-header {
  margin-bottom: 0.75rem;
}

.feature-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-primary);
  margin-bottom: 0.35rem;
}

.feature-card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: #ffffff;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Code Snippet Box */
.code-box {
  max-width: 800px;
  margin: 0 auto;
  background-color: var(--code-bg);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  overflow: hidden;
}

.code-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1.25rem;
  background-color: rgba(31, 41, 55, 0.4);
  border-bottom: 1px solid var(--border-color);
}

.code-title {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.copy-btn {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 0.25rem 0.75rem;
  border-radius: 4px;
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.copy-btn:hover {
  color: #ffffff;
  border-color: #4b5563;
}

.code-body {
  padding: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: #e5e7eb;
  overflow-x: auto;
}

/* Docs Grid */
.docs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.doc-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 1.5rem;
  border-radius: 10px;
  display: block;
}

.doc-card:hover {
  border-color: var(--accent-primary);
}

.doc-card h3 {
  font-size: 1.1rem;
  color: #ffffff;
  margin-bottom: 0.5rem;
}

.doc-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border-color);
  background-color: #050811;
  padding: 4rem 1.5rem 2.5rem;
}

.footer-container {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  text-align: center;
}

.footer-brand p {
  color: var(--text-dim);
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

.footer-links {
  display: flex;
  gap: 2rem;
  font-size: 0.95rem;
}

.footer-links a {
  color: var(--text-muted);
}

.footer-links a:hover {
  color: #ffffff;
}

.footer-copy p {
  color: var(--text-dim);
  font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-subtitle {
    font-size: 1.15rem;
  }

  .nav-links {
    gap: 1rem;
  }

  .hero-actions {
    flex-direction: column;
  }
}