:root {
  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", "JetBrains Mono", Menlo, Consolas, Monaco, monospace;
  
  --bg-black: #060709;
  --bg-surface: #0e1117;
  --bg-card: rgba(22, 27, 34, 0.75);
  --bg-card-hover: rgba(30, 38, 48, 0.85);
  --bg-glass: rgba(15, 18, 24, 0.65);
  --bg-terminal: #090b10;

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-highlight: rgba(255, 255, 255, 0.16);
  --border-focus: #38bdf8;

  --text-main: #f0f6fc;
  --text-muted: #8b949e;
  --text-dim: #6e7681;

  --accent-rust: #f97316;
  --accent-apple: #a855f7;
  --accent-cyan: #06b6d4;
  --accent-green: #10b981;
  --accent-blue: #3b82f6;

  --glow-siri: radial-gradient(circle, rgba(168, 85, 247, 0.18) 0%, rgba(6, 182, 212, 0.12) 40%, rgba(6, 7, 9, 0) 70%);
  --grad-apple-intel: linear-gradient(135deg, #ff416c 0%, #ff4b2b 25%, #8a2387 50%, #4facfe 75%, #00f2fe 100%);
  --grad-rust: linear-gradient(135deg, #f97316 0%, #ea580c 100%);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 9999px;

  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5), 0 0 1px 1px var(--border-subtle);
  --shadow-terminal: 0 25px 60px -15px rgba(0, 0, 0, 0.85), 0 0 1px 1px rgba(255, 255, 255, 0.12);

  --timing-fast: 120ms;
  --timing-smooth: 220ms;
  --ease-apple: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  background-color: var(--bg-black);
  color: var(--text-main);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.6;
}

body {
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* Background Atmosphere Glow */
.bg-ambient {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  background: 
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(120, 119, 198, 0.22), transparent 70%),
    radial-gradient(ellipse 60% 40% at 85% 30%, rgba(6, 182, 212, 0.08), transparent 60%),
    radial-gradient(ellipse 50% 30% at 15% 70%, rgba(249, 115, 22, 0.08), transparent 60%);
}

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* Typography Helpers */
h1, h2, h3, h4 {
  color: var(--text-main);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.2;
}

p {
  color: var(--text-muted);
}

code, pre {
  font-family: var(--font-mono);
}

a {
  color: var(--text-main);
  text-decoration: none;
  transition: color var(--timing-fast) ease-out;
}

a:hover {
  color: #fff;
}

/* Navigation Bar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: var(--bg-glass);
  border-bottom: 1px solid var(--border-subtle);
  transition: border-color var(--timing-smooth) ease;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
}

.brand-icon {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-badge {
  font-size: 0.72rem;
  padding: 2px 7px;
  border-radius: var(--radius-pill);
  background: rgba(249, 115, 22, 0.15);
  color: #fb923c;
  border: 1px solid rgba(249, 115, 22, 0.3);
  font-family: var(--font-mono);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  font-size: 0.92rem;
  color: var(--text-muted);
  font-weight: 500;
  transition: color var(--timing-fast) ease-out;
}

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

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

.btn-github {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 600;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  transition: background var(--timing-fast) ease, transform var(--timing-fast) ease;
}

.btn-github:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--border-highlight);
}

.btn-github:active {
  transform: scale(0.97);
}

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

.badge-wrapper {
  margin-bottom: 24px;
  display: inline-flex;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  background: rgba(168, 85, 247, 0.1);
  border: 1px solid rgba(168, 85, 247, 0.3);
  font-size: 0.82rem;
  color: #d8b4fe;
  font-weight: 500;
  box-shadow: 0 0 20px rgba(168, 85, 247, 0.15);
}

.hero-pill-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #a855f7;
  box-shadow: 0 0 8px #a855f7;
  animation: pulse 2s infinite ease-in-out;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

.hero-title {
  font-size: clamp(2.5rem, 5.5vw, 4.2rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  margin-bottom: 20px;
  line-height: 1.1;
}

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

.hero-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  color: var(--text-muted);
  max-width: 780px;
  margin: 0 auto 36px;
  font-weight: 400;
}

.hero-stats-row {
  display: flex;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 8px 18px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
}

.stat-val {
  font-size: 1.5rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: #fff;
}

.stat-label {
  font-size: 0.76rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 2px;
}

/* Install Selector */
.install-box {
  max-width: 680px;
  margin: 0 auto 48px;
  background: var(--bg-surface);
  border: 1px solid var(--border-highlight);
  border-radius: var(--radius-md);
  padding: 6px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}

.install-tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 6px;
}

.tab-btn {
  background: transparent;
  border: none;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--timing-fast) ease-out;
}

.tab-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
}

.tab-btn.active {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--border-highlight);
}

.install-command-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--bg-black);
  border-radius: var(--radius-sm);
  margin-top: 6px;
  border: 1px solid var(--border-subtle);
}

.command-text {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: #38bdf8;
  white-space: nowrap;
  overflow-x: auto;
  text-align: left;
}

.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--timing-fast) ease;
  flex-shrink: 0;
  margin-left: 12px;
}

.copy-btn:hover {
  background: rgba(255, 255, 255, 0.16);
  border-color: var(--border-highlight);
}

.copy-btn:active {
  transform: scale(0.96);
}

/* Terminal Mockup */
.terminal-window {
  max-width: 900px;
  margin: 0 auto;
  background: var(--bg-terminal);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-highlight);
  box-shadow: var(--shadow-terminal);
  overflow: hidden;
  text-align: left;
}

.terminal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: #11141c;
  border-bottom: 1px solid var(--border-subtle);
}

.traffic-lights {
  display: flex;
  gap: 8px;
}

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

.dot-red { background: #ff5f56; }
.dot-yellow { background: #ffbd2e; }
.dot-green { background: #27c93f; }

.terminal-tabs {
  display: flex;
  gap: 6px;
}

.term-tab {
  background: transparent;
  border: none;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--text-dim);
  padding: 4px 10px;
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--timing-fast) ease;
}

.term-tab:hover {
  color: var(--text-muted);
}

.term-tab.active {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.terminal-body {
  padding: 20px 24px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.65;
  color: #c9d1d9;
  min-height: 250px;
  overflow-x: auto;
}

.t-prompt { color: #f97316; font-weight: 600; }
.t-cmd { color: #58a6ff; font-weight: 500; }
.t-out { color: #f0f6fc; }
.t-meta { color: #8b949e; }
.t-success { color: #3fb950; font-weight: 600; }
.t-cyan { color: #38bdf8; }
.t-amber { color: #fbbf24; }

/* Section Common Styling */
.section {
  padding: 90px 0;
  position: relative;
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}

.section-eyebrow {
  display: inline-block;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 700;
  color: var(--accent-cyan);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
}

/* Benchmark Comparison Section */
.bench-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
  margin-bottom: 36px;
}

.bench-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: transform var(--timing-fast) ease, border-color var(--timing-fast) ease;
}

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

.bench-card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
}

.bench-metric-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
}

.bench-badge {
  font-size: 0.78rem;
  font-weight: 700;
  font-family: var(--font-mono);
  padding: 3px 8px;
  border-radius: 6px;
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.bench-bar-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.bench-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.bench-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
}

.bench-impl {
  color: var(--text-dim);
  font-weight: 500;
}

.bench-num {
  font-family: var(--font-mono);
  font-weight: 600;
}

.bench-track {
  width: 100%;
  height: 10px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-pill);
  overflow: hidden;
}

.bench-fill-swift {
  height: 100%;
  background: #6e7681;
  border-radius: var(--radius-pill);
}

.bench-fill-rust {
  height: 100%;
  background: linear-gradient(90deg, #f97316, #10b981);
  border-radius: var(--radius-pill);
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 28px;
  position: relative;
  overflow: hidden;
  transition: all var(--timing-smooth) var(--ease-apple);
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-highlight);
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
}

.feature-icon-wrapper {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 20px;
}

.feature-title {
  font-size: 1.25rem;
  margin-bottom: 10px;
}

.feature-desc {
  font-size: 0.95rem;
  line-height: 1.6;
}

/* API Playground / Explorer */
.api-explorer {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.api-explorer-tabs {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  background: #11141c;
  border-bottom: 1px solid var(--border-subtle);
  overflow-x: auto;
}

.api-tab-btn {
  background: transparent;
  border: none;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--timing-fast) ease;
  white-space: nowrap;
}

.api-tab-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
}

.api-tab-btn.active {
  color: #fff;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid var(--border-highlight);
}

.api-code-panel {
  padding: 24px;
  background: #090b10;
  position: relative;
}

.api-code-panel pre {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.6;
  color: #e6edf3;
  overflow-x: auto;
}

/* Architecture Flow */
.arch-diagram {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 40px 24px;
  text-align: center;
}

.arch-flow-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  align-items: center;
  position: relative;
}

.arch-node {
  background: var(--bg-surface);
  border: 1px solid var(--border-highlight);
  border-radius: var(--radius-md);
  padding: 24px 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.arch-node-badge {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  text-transform: uppercase;
}

.arch-node-title {
  font-size: 1.1rem;
  font-weight: 700;
}

.arch-node-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* CLI Table & Exit codes */
.table-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.data-table th, .data-table td {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border-subtle);
}

.data-table th {
  background: rgba(255, 255, 255, 0.03);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  font-weight: 600;
}

.data-table td {
  font-size: 0.9rem;
}

.data-table tr:last-child td {
  border-bottom: none;
}

.data-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

/* FAQ Section */
.faq-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 840px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--timing-fast) ease;
}

.faq-item:hover {
  border-color: var(--border-highlight);
}

.faq-question {
  padding: 20px 24px;
  cursor: pointer;
  font-size: 1.05rem;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
  list-style: none;
  color: var(--text-main);
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-icon {
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--timing-fast) ease;
  color: var(--text-muted);
}

.faq-item[open] .faq-icon {
  transform: rotate(180deg);
  color: var(--accent-cyan);
}

.faq-answer {
  padding: 16px 24px 20px;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.65;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.faq-answer code {
  color: #38bdf8;
  background: rgba(56, 189, 248, 0.1);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.88rem;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border-subtle);
  padding: 60px 0 40px;
  margin-top: 80px;
  background: rgba(10, 12, 16, 0.8);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-links {
  display: flex;
  gap: 24px;
  list-style: none;
}

.footer-links a {
  font-size: 0.9rem;
  color: var(--text-muted);
}

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

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .hero {
    padding: 50px 0 40px;
  }
  .hero-stats-row {
    gap: 16px;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .bench-grid {
    grid-template-columns: 1fr;
  }
}

/* Simplicity Value Props (Inspired by apfel.franzai.com) */
.hero-pills {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin: 0 auto 28px;
}

.hero-pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  font-size: 0.85rem;
  color: var(--text-main);
  font-weight: 500;
  backdrop-filter: blur(8px);
}

.pill-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}

.hero-note {
  font-size: 0.82rem;
  color: var(--text-dim);
  margin-top: -24px;
  margin-bottom: 32px;
}

.hero-note a {
  color: var(--text-muted);
  text-decoration: underline;
}

.hero-note a:hover {
  color: #fff;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}