:root {
  /* Pro Developer Dark Theme */
  --bg-base: #0a0a0a;
  --bg-surface: #111827;
  --bg-surface-hover: #1f2937;
  
  --text-primary: #f9fafb;
  --text-secondary: #9ca3af;
  --text-tertiary: #6b7280;
  
  --accent-primary: #3b82f6; /* Soft Blue */
  --accent-hover: #2563eb;
  --accent-teal: #14b8a6;
  
  --border-subtle: rgba(255, 255, 255, 0.1);
  --border-strong: rgba(255, 255, 255, 0.15);
  
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  --max-width: 1000px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  
  --transition: 200ms ease;
}

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

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}

kbd {
  background: var(--bg-surface-hover);
  border: 1px solid var(--border-strong);
  border-bottom-width: 2px;
  border-radius: 4px;
  padding: 0.2em 0.4em;
  font-family: var(--font-mono);
  font-size: 0.85em;
  color: var(--text-primary);
}

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  color: var(--accent-primary);
}

/* Utilities */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--accent-primary);
  color: #fff;
  padding: 8px;
  z-index: 100;
  transition: top var(--transition);
}

.skip-link:focus { top: 0; }

.reveal {
  opacity: 0;
  transform: translateY(15px);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 1rem 0;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 1.1rem;
}

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

.nav-menu {
  display: flex;
  gap: 1.5rem;
  align-items: center;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

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

.nav-github {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--text-primary) !important;
  font-weight: 500;
}

/* Hero */
.hero {
  max-width: var(--max-width);
  margin: 4rem auto;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-title {
  font-size: 3rem;
  line-height: 1.1;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.hero-install {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.code-block {
  display: flex;
  align-items: center;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.code-block.copyable {
  position: relative;
  padding-right: 4.5rem; /* Room for copy btn */
}

.code-block .prompt {
  color: var(--text-tertiary);
  margin-right: 0.5rem;
  user-select: none;
}

.code-block code {
  color: var(--text-primary);
  overflow-x: auto;
  white-space: nowrap;
}

.copy-btn {
  position: absolute;
  right: 0.5rem;
  background: var(--bg-surface-hover);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;
  cursor: pointer;
  transition: all var(--transition);
}

.copy-btn:hover {
  background: var(--text-primary);
  color: var(--bg-base);
}

/* Window Visual */
.macos-window {
  background: #000;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.window-header {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
}

.window-buttons {
  display: flex;
  gap: 6px;
  margin-right: 1rem;
}

.window-buttons span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--text-tertiary);
}
.window-buttons span:nth-child(1) { background: #ef4444; }
.window-buttons span:nth-child(2) { background: #f59e0b; }
.window-buttons span:nth-child(3) { background: #10b981; }

.window-title {
  flex: 1;
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-tertiary);
  font-family: var(--font-mono);
}

.demo-gif {
  display: block;
  width: 100%;
  height: auto;
}

/* Section Common */
.docs-section {
  max-width: var(--max-width);
  margin: 6rem auto;
  padding: 0 2rem;
}

.section-header {
  margin-bottom: 3rem;
}

.kicker {
  color: var(--accent-primary);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.section-header h2 {
  font-size: 2rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 600px;
}

/* Pipeline Section */
.pipeline-visual {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 2rem;
  margin-bottom: 3rem;
  overflow-x: auto;
}

.pipeline-visual .node {
  text-align: center;
}

.node h4 {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.node p {
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

.pipeline-visual .edge {
  color: var(--accent-primary);
  font-size: 1.25rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.feature-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

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

/* Docs Grid */
.docs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem 3rem;
  align-items: start;
}

.docs-text h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

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

.docs-code {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

/* Export Grid */
.export-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.export-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 1.5rem;
  border-radius: var(--radius-md);
}

.export-card h4 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.export-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.export-card .code-block {
  padding: 0.5rem 0.75rem;
  font-size: 0.75rem;
}

/* Tables */
.controls-table, .compatibility-table {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.control-row, .comp-row {
  display: grid;
  grid-template-columns: 1.5fr 2fr 1.5fr;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.9rem;
  align-items: center;
}

.control-row:last-child, .comp-row:last-child {
  border-bottom: none;
}

.header {
  background: var(--bg-surface-hover);
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

.control-row code {
  color: var(--accent-teal);
}

.status-good { color: var(--accent-teal); }
.status-expected { color: var(--accent-primary); }
.status-needs { color: #f59e0b; }

.performance-note {
  margin-top: 1.5rem;
  padding: 1rem 1.5rem;
  background: rgba(59, 130, 246, 0.1);
  border-left: 4px solid var(--accent-primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.performance-note h4 {
  font-size: 0.9rem;
  color: var(--accent-primary);
  margin-bottom: 0.25rem;
}

.performance-note p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 4rem 0;
  margin-top: 6rem;
}

.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  color: var(--text-primary);
}

.footer-text {
  font-size: 0.85rem;
  color: var(--text-tertiary);
  max-width: 400px;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

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

/* Responsive */
@media (max-width: 800px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2rem;
    margin-top: 2rem;
  }
  .pipeline-visual {
    flex-direction: column;
    gap: 1rem;
  }
  .pipeline-visual .edge {
    transform: rotate(90deg);
  }
  .feature-grid, .docs-grid, .export-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .docs-grid {
    gap: 1rem;
  }
  .docs-code {
    margin-bottom: 2rem;
  }
  .control-row, .comp-row {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }
  .header { display: none; }
}