/* Reset and Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-tertiary: #1a1a24;
  --text-primary: #e4e4e7;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;
  --accent: #22d3ee;
  --accent-secondary: #818cf8;
  --accent-gradient: linear-gradient(135deg, #22d3ee, #818cf8);
  --border: #27272a;
  --terminal-bg: #0c0c10;
  --terminal-green: #4ade80;
  --terminal-yellow: #facc15;
  --terminal-red: #f87171;
  --terminal-blue: #60a5fa;
  --terminal-purple: #c084fc;
  --terminal-cyan: #22d3ee;
  --font-mono: 'SF Mono', 'Fira Code', 'JetBrains Mono', monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

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

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 1.25rem;
}

.logo-icon {
  font-size: 1.5rem;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
}

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

.nav-github {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--bg-tertiary);
  border-radius: 8px;
  border: 1px solid var(--border);
}

.nav-github:hover {
  border-color: var(--accent);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 120px 24px 60px;
  gap: 48px;
}

.hero-content {
  text-align: center;
  max-width: 800px;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 24px;
}

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

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #000;
}

.btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

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

.btn-secondary:hover {
  border-color: var(--accent);
}

.btn-icon {
  font-family: var(--font-mono);
  margin-right: 8px;
  opacity: 0.7;
}

/* Terminal */
.terminal-container {
  width: 100%;
  max-width: 900px;
}

.terminal {
  background: var(--terminal-bg);
  border-radius: 12px;
  border: 1px solid var(--border);
  overflow: hidden;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.4);
}

.terminal-header {
  background: var(--bg-tertiary);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--border);
}

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

.terminal-btn {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.terminal-btn.red { background: var(--terminal-red); }
.terminal-btn.yellow { background: var(--terminal-yellow); }
.terminal-btn.green { background: var(--terminal-green); }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  flex: 1;
  text-align: center;
}

.terminal-body {
  padding: 20px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.6;
  min-height: 400px;
  max-height: 500px;
  overflow-y: auto;
}

.terminal-line {
  display: flex;
  align-items: center;
  margin-bottom: 8px;
}

.prompt {
  color: var(--terminal-green);
  margin-right: 8px;
  user-select: none;
}

.command {
  color: var(--text-primary);
}

.cursor {
  animation: blink 1s infinite;
  color: var(--accent);
}

@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

.output-line {
  color: var(--text-secondary);
  margin-bottom: 4px;
  white-space: pre-wrap;
}

.output-line.comment { color: var(--text-muted); }
.output-line.success { color: var(--terminal-green); }
.output-line.info { color: var(--terminal-cyan); }
.output-line.warning { color: var(--terminal-yellow); }
.output-line.key { color: var(--terminal-purple); }
.output-line.string { color: var(--terminal-green); }
.output-line.header { 
  color: var(--accent); 
  font-weight: bold;
  margin-top: 8px;
}
.output-line.chart {
  color: var(--terminal-blue);
}
.output-line.box {
  color: var(--text-muted);
}

.terminal-controls {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 16px;
}

.terminal-control-btn {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s;
}

.terminal-control-btn:hover {
  border-color: var(--accent);
  color: var(--text-primary);
}

/* Install Section */
.install-section {
  padding: 80px 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.install-section h2 {
  text-align: center;
  margin-bottom: 48px;
  font-size: 2rem;
}

.install-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.install-option {
  background: var(--bg-tertiary);
  padding: 24px;
  border-radius: 12px;
  border: 1px solid var(--border);
}

.install-option h3 {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.install-code {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--terminal-green);
  background: var(--terminal-bg);
  padding: 12px 16px;
  border-radius: 8px;
  overflow-x: auto;
}

.install-link {
  color: var(--accent);
  text-decoration: none;
  font-size: 0.95rem;
}

.install-link:hover {
  text-decoration: underline;
}

/* Features Preview */
.features-preview {
  padding: 80px 0;
}

.features-preview h2 {
  text-align: center;
  margin-bottom: 48px;
  font-size: 2rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin-bottom: 48px;
}

.feature-card {
  background: var(--bg-secondary);
  padding: 32px;
  border-radius: 12px;
  border: 1px solid var(--border);
  transition: border-color 0.2s;
}

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

.feature-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

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

.features-cta {
  text-align: center;
}

/* CTA Section */
.cta-section {
  padding: 80px 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  text-align: center;
}

.cta-section h2 {
  font-size: 2rem;
  margin-bottom: 16px;
}

.cta-section p {
  color: var(--text-secondary);
  margin-bottom: 32px;
  font-size: 1.1rem;
}

.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Footer */
.footer {
  padding: 32px 0;
  border-top: 1px solid var(--border);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
}

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

/* Features Page */
.page-header {
  padding: 140px 0 60px;
  text-align: center;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}

.page-header h1 {
  font-size: 3rem;
  margin-bottom: 16px;
}

.page-header p {
  color: var(--text-secondary);
  font-size: 1.25rem;
  max-width: 600px;
  margin: 0 auto;
}

.features-page {
  padding: 80px 0;
}

.feature-section {
  margin-bottom: 80px;
}

.feature-section h2 {
  font-size: 1.75rem;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.feature-section-icon {
  font-size: 1.5rem;
}

.feature-description {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 32px;
  max-width: 800px;
}

.code-block {
  background: var(--terminal-bg);
  border-radius: 12px;
  border: 1px solid var(--border);
  overflow: hidden;
}

.code-header {
  background: var(--bg-tertiary);
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.code-content {
  padding: 20px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.6;
  overflow-x: auto;
}

.code-content .key { color: var(--terminal-purple); }
.code-content .string { color: var(--terminal-green); }
.code-content .comment { color: var(--text-muted); }
.code-content .keyword { color: var(--terminal-cyan); }

/* Templates Page */
.templates-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 24px;
  padding: 80px 0;
}

.template-card {
  background: var(--bg-secondary);
  border-radius: 12px;
  border: 1px solid var(--border);
  overflow: hidden;
  transition: all 0.2s;
}

.template-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.template-header {
  padding: 24px;
  border-bottom: 1px solid var(--border);
}

.template-header h3 {
  font-size: 1.25rem;
  margin-bottom: 8px;
}

.template-header p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.template-tags {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.template-tag {
  background: var(--bg-tertiary);
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.template-code {
  padding: 16px 20px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.5;
  background: var(--terminal-bg);
  max-height: 200px;
  overflow-y: auto;
}

.template-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
}

.template-link {
  color: var(--accent);
  text-decoration: none;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 4px;
}

.template-link:hover {
  text-decoration: underline;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    gap: 16px;
  }
  
  .hero {
    padding: 100px 16px 40px;
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  .terminal-body {
    font-size: 0.75rem;
    min-height: 300px;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
}