@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

/* ═══════════════════════════════════════════
   DESIGN SYSTEM TOKENS
   Inspired by Supabase / Vercel / Linear
   ═══════════════════════════════════════════ */

:root {
  /* Background Layers */
  --bg-0: #050506;
  --bg-1: #0a0b0e;
  --bg-2: #111318;
  --bg-3: #181b22;
  --bg-surface: rgba(17, 19, 24, 0.65);
  --bg-surface-hover: rgba(24, 27, 34, 0.8);
  --bg-elevated: rgba(30, 34, 44, 0.6);

  /* Borders */
  --border-default: rgba(255, 255, 255, 0.06);
  --border-subtle: rgba(255, 255, 255, 0.04);
  --border-active: rgba(59, 130, 246, 0.5);
  --border-glow: rgba(139, 92, 246, 0.4);

  /* Text Colors */
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-tertiary: #64748b;
  --text-inverse: #0a0b0e;

  /* Brand Palette */
  --brand-blue: #3b82f6;
  --brand-indigo: #6366f1;
  --brand-violet: #8b5cf6;
  --brand-cyan: #06b6d4;
  --brand-emerald: #10b981;
  --brand-amber: #f59e0b;
  --brand-rose: #f43f5e;
  --brand-sky: #38bdf8;

  /* Gradients */
  --gradient-brand: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 50%, #06b6d4 100%);
  --gradient-text: linear-gradient(to right, #f1f5f9 0%, #94a3b8 100%);
  --gradient-hero: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
  --gradient-surface: linear-gradient(180deg, rgba(59, 130, 246, 0.08) 0%, transparent 100%);
  --gradient-card-border: linear-gradient(135deg, rgba(59, 130, 246, 0.3), rgba(139, 92, 246, 0.1), transparent);
  --gradient-glow: radial-gradient(ellipse at 50% 0%, rgba(59, 130, 246, 0.15), transparent 70%);

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;
  --space-5xl: 128px;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.5);
  --shadow-xl: 0 24px 60px rgba(0,0,0,0.6);
  --shadow-glow: 0 0 60px rgba(59, 130, 246, 0.15);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ═══════════════════════════════════════════
   RESET & BASE
   ═══════════════════════════════════════════ */

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-0);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

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

img {
  max-width: 100%;
  display: block;
}

/* ═══════════════════════════════════════════
   AMBIENT BACKGROUND
   ═══════════════════════════════════════════ */

.ambient-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.ambient-bg::before {
  content: '';
  position: absolute;
  top: -300px;
  left: 50%;
  transform: translateX(-50%);
  width: 1200px;
  height: 800px;
  background: radial-gradient(ellipse at center, rgba(59, 130, 246, 0.12) 0%, rgba(139, 92, 246, 0.06) 40%, transparent 70%);
  filter: blur(80px);
}

.ambient-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at 50% 30%, black, transparent 80%);
}

/* ═══════════════════════════════════════════
   LAYOUT
   ═══════════════════════════════════════════ */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  position: relative;
  z-index: 1;
}

.container-wide {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  position: relative;
  z-index: 1;
}

section {
  position: relative;
}

/* ═══════════════════════════════════════════
   SECTION HEADERS
   ═══════════════════════════════════════════ */

.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--space-3xl);
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.2);
  color: var(--brand-blue);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-md);
}

.section-title {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

.section-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 640px;
  margin: 0 auto;
}

/* ═══════════════════════════════════════════
   NAVBAR
   ═══════════════════════════════════════════ */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(5, 5, 6, 0.8);
  backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border-default);
  transition: all var(--transition-base);
}

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

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.nav-brand-icon {
  width: 28px;
  height: 28px;
  background: var(--gradient-brand);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
}

.nav-version {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.2);
  color: var(--brand-blue);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  list-style: none;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ═══════════════════════════════════════════
   BUTTONS
   ═══════════════════════════════════════════ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.875rem;
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
  line-height: 1.4;
}

.btn-primary {
  background: var(--gradient-hero);
  color: #ffffff;
  box-shadow: 0 2px 12px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(59, 130, 246, 0.45);
  filter: brightness(1.08);
}

.btn-secondary {
  background: var(--bg-3);
  color: var(--text-primary);
  border: 1px solid var(--border-default);
}

.btn-secondary:hover {
  background: var(--bg-elevated);
  border-color: rgba(255, 255, 255, 0.12);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-default);
}

.btn-ghost:hover {
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.03);
}

.btn-lg {
  padding: 14px 28px;
  font-size: 0.95rem;
  border-radius: var(--radius-lg);
}

.btn-icon {
  font-size: 1.1rem;
}

/* ═══════════════════════════════════════════
   HERO SECTION
   ═══════════════════════════════════════════ */

.hero {
  padding: calc(64px + var(--space-5xl)) 0 var(--space-4xl);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 60px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 600px;
  background: radial-gradient(ellipse, rgba(59, 130, 246, 0.18), transparent 65%);
  filter: blur(60px);
  pointer-events: none;
}

.hero-content {
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.hero-announcement {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 8px 20px;
  border-radius: var(--radius-full);
  background: rgba(59, 130, 246, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.2);
  color: var(--brand-sky);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: var(--space-xl);
  animation: fadeInDown 0.6s ease-out;
}

.hero-announcement .pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--brand-emerald);
  box-shadow: 0 0 8px var(--brand-emerald);
  animation: pulse-glow 2s ease-in-out infinite;
}

.hero-title {
  font-size: clamp(2.8rem, 6.5vw, 5rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin-bottom: var(--space-lg);
  animation: fadeInUp 0.7s ease-out 0.1s both;
}

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

.hero-description {
  font-size: 1.25rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 660px;
  margin: 0 auto var(--space-2xl);
  animation: fadeInUp 0.7s ease-out 0.2s both;
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-3xl);
  animation: fadeInUp 0.7s ease-out 0.3s both;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: var(--space-3xl);
  padding-top: var(--space-2xl);
  border-top: 1px solid var(--border-default);
  animation: fadeInUp 0.7s ease-out 0.4s both;
}

.hero-stat {
  text-align: center;
}

.hero-stat-value {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.hero-stat-label {
  font-size: 0.85rem;
  color: var(--text-tertiary);
  margin-top: 4px;
}

/* ═══════════════════════════════════════════
   CODE WINDOW
   ═══════════════════════════════════════════ */

.code-window {
  max-width: 920px;
  margin: var(--space-3xl) auto 0;
  background: var(--bg-1);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl), var(--shadow-glow);
  animation: fadeInUp 0.8s ease-out 0.5s both;
}

.code-window-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background: var(--bg-2);
  border-bottom: 1px solid var(--border-default);
}

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

.code-window-dots span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dot-red { background: #ff5f57; }
.dot-yellow { background: #febc2e; }
.dot-green { background: #28c840; }

.code-tabs {
  display: flex;
  gap: 4px;
}

.code-tab {
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  background: transparent;
  border: none;
  color: var(--text-tertiary);
  font-size: 0.8rem;
  font-weight: 600;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.code-tab.active {
  background: rgba(59, 130, 246, 0.15);
  color: var(--brand-sky);
}

.code-tab:hover:not(.active) {
  color: var(--text-secondary);
}

.code-window-actions {
  display: flex;
  gap: var(--space-sm);
}

.code-copy {
  padding: 5px 12px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-default);
  color: var(--text-tertiary);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: var(--font-sans);
}

.code-copy:hover {
  background: rgba(59, 130, 246, 0.15);
  color: var(--brand-sky);
  border-color: rgba(59, 130, 246, 0.3);
}

.code-body {
  padding: var(--space-lg) var(--space-xl);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--text-secondary);
  background: var(--bg-0);
  min-height: 200px;
  overflow-x: auto;
}

.code-panel { display: none; white-space: pre; }
.code-panel.active { display: block; }

/* Syntax Highlighting */
.hl-kw { color: #c084fc; }
.hl-fn { color: #60a5fa; }
.hl-str { color: #34d399; }
.hl-cmt { color: #475569; font-style: italic; }
.hl-num { color: #fbbf24; }
.hl-op { color: #94a3b8; }
.hl-type { color: #38bdf8; }
.hl-var { color: #e2e8f0; }
.hl-prop { color: #a78bfa; }

/* ═══════════════════════════════════════════
   FEATURES BENTO GRID
   ═══════════════════════════════════════════ */

.features-section {
  padding: var(--space-5xl) 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.feature-card {
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-surface);
  opacity: 0;
  transition: opacity var(--transition-base);
}

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

.feature-card:hover::before {
  opacity: 1;
}

.feature-card-content {
  position: relative;
  z-index: 1;
}

.feature-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: var(--space-md);
}

.feature-icon-blue { background: rgba(59, 130, 246, 0.15); border: 1px solid rgba(59, 130, 246, 0.2); }
.feature-icon-violet { background: rgba(139, 92, 246, 0.15); border: 1px solid rgba(139, 92, 246, 0.2); }
.feature-icon-cyan { background: rgba(6, 182, 212, 0.15); border: 1px solid rgba(6, 182, 212, 0.2); }
.feature-icon-emerald { background: rgba(16, 185, 129, 0.15); border: 1px solid rgba(16, 185, 129, 0.2); }
.feature-icon-amber { background: rgba(245, 158, 11, 0.15); border: 1px solid rgba(245, 158, 11, 0.2); }
.feature-icon-rose { background: rgba(244, 63, 94, 0.15); border: 1px solid rgba(244, 63, 94, 0.2); }

.feature-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  letter-spacing: -0.01em;
}

.feature-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.feature-code {
  margin-top: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--brand-sky);
  overflow-x: auto;
}

/* Span 2 columns */
.feature-card-wide {
  grid-column: span 2;
}

/* ═══════════════════════════════════════════
   AI TOOLS SECTION
   ═══════════════════════════════════════════ */

.tools-section {
  padding: var(--space-5xl) 0;
  border-top: 1px solid var(--border-default);
}

.tools-carousel {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-2xl);
}

.tool-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-xl) var(--space-md);
  border-radius: var(--radius-lg);
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  transition: all var(--transition-base);
  cursor: default;
}

.tool-card:hover {
  border-color: var(--border-active);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  background: var(--bg-surface-hover);
}

.tool-logo {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--space-md);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-default);
}

.tool-name {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.tool-desc {
  font-size: 0.78rem;
  color: var(--text-tertiary);
  line-height: 1.5;
}

.tool-badge {
  margin-top: var(--space-sm);
  font-size: 0.68rem;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  color: var(--brand-emerald);
  font-weight: 600;
}

/* ═══════════════════════════════════════════
   COMPARISON TABLE
   ═══════════════════════════════════════════ */

.comparison-section {
  padding: var(--space-5xl) 0;
  border-top: 1px solid var(--border-default);
}

.comparison-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.comparison-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-width: 800px;
}

.comparison-table th,
.comparison-table td {
  padding: 16px 20px;
  text-align: left;
  border-bottom: 1px solid var(--border-default);
  font-size: 0.875rem;
}

.comparison-table thead th {
  background: var(--bg-2);
  font-weight: 700;
  color: var(--text-primary);
  position: sticky;
  top: 0;
}

.comparison-table tbody tr {
  transition: background var(--transition-fast);
}

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

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

.comparison-table td {
  color: var(--text-secondary);
}

.col-sparrow {
  background: rgba(59, 130, 246, 0.06) !important;
  color: var(--brand-blue) !important;
  font-weight: 700 !important;
}

.col-sparrow-head {
  background: rgba(59, 130, 246, 0.12) !important;
  color: var(--brand-sky) !important;
}

.badge-yes {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--brand-emerald);
  font-weight: 600;
}

.badge-no {
  color: var(--text-tertiary);
}

.badge-partial {
  color: var(--brand-amber);
}

.comparison-note {
  text-align: center;
  margin-top: var(--space-lg);
  font-size: 0.85rem;
  color: var(--text-tertiary);
}

/* ═══════════════════════════════════════════
   PLAIN ENGLISH SECTION
   ═══════════════════════════════════════════ */

.plain-english-section {
  padding: var(--space-5xl) 0;
  border-top: 1px solid var(--border-default);
}

.workload-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.workload-card {
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  transition: all var(--transition-base);
  position: relative;
}

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

.workload-type {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--brand-emerald);
  margin-bottom: var(--space-sm);
}

.workload-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.workload-big-number {
  font-size: 2.4rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-sm);
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.workload-explain {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-md);
}

.workload-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.workload-tag {
  font-size: 0.72rem;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-default);
  color: var(--text-tertiary);
}

/* ═══════════════════════════════════════════
   CALCULATOR SECTION
   ═══════════════════════════════════════════ */

.calculator-section {
  padding: var(--space-5xl) 0;
  border-top: 1px solid var(--border-default);
}

.calculator-card {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-2xl);
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.08), rgba(139, 92, 246, 0.06));
  border: 1px solid rgba(59, 130, 246, 0.2);
  text-align: center;
}

.calc-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
}

.app-type-pills {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
}

.app-type-pill {
  padding: 8px 16px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-default);
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: var(--font-sans);
}

.app-type-pill.active {
  background: rgba(59, 130, 246, 0.15);
  border-color: rgba(59, 130, 246, 0.4);
  color: var(--brand-sky);
}

.app-type-pill:hover:not(.active) {
  border-color: rgba(255, 255, 255, 0.12);
  color: var(--text-primary);
}

.calc-slider-container {
  max-width: 600px;
  margin: 0 auto var(--space-xl);
}

.calc-slider {
  width: 100%;
  height: 6px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--bg-3);
  border-radius: 3px;
  cursor: pointer;
  outline: none;
}

.calc-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--brand-blue);
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.5);
  cursor: pointer;
}

.calc-slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--brand-blue);
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.5);
  cursor: pointer;
  border: none;
}

.calc-dau-display {
  font-size: 1rem;
  font-weight: 600;
  color: var(--brand-sky);
  margin-top: var(--space-md);
  font-family: var(--font-mono);
}

.calc-result {
  font-size: 2.5rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-sm);
}

.calc-result.free { color: var(--brand-emerald); }
.calc-result.paid { color: var(--brand-sky); }

.calc-breakdown {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ═══════════════════════════════════════════
   PRICING TABLE
   ═══════════════════════════════════════════ */

.pricing-section {
  padding: var(--space-5xl) 0;
  border-top: 1px solid var(--border-default);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
  max-width: 900px;
  margin: 0 auto;
}

.pricing-card {
  padding: var(--space-xl);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-default);
  background: var(--bg-surface);
  position: relative;
}

.pricing-card.featured {
  border-color: rgba(59, 130, 246, 0.4);
  box-shadow: var(--shadow-glow);
}

.pricing-card.featured::before {
  content: 'MOST POPULAR';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 16px;
  border-radius: var(--radius-full);
  background: var(--gradient-hero);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.pricing-plan-name {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.pricing-price {
  font-size: 2.8rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-sm);
}

.pricing-price span {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-tertiary);
}

.pricing-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
  line-height: 1.6;
}

.pricing-features {
  list-style: none;
}

.pricing-features li {
  padding: 8px 0;
  font-size: 0.88rem;
  color: var(--text-secondary);
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  border-bottom: 1px solid var(--border-subtle);
}

.pricing-features li:last-child {
  border-bottom: none;
}

.pricing-check {
  color: var(--brand-emerald);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}

/* ═══════════════════════════════════════════
   DOCS SECTION (inline, not modal)
   ═══════════════════════════════════════════ */

.docs-section {
  padding: var(--space-5xl) 0;
  border-top: 1px solid var(--border-default);
}

.docs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.doc-card {
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  transition: all var(--transition-base);
}

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

.doc-step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(59, 130, 246, 0.15);
  border: 1px solid rgba(59, 130, 246, 0.3);
  color: var(--brand-blue);
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
}

.doc-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.doc-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-md);
}

.doc-code {
  padding: var(--space-md);
  border-radius: var(--radius-md);
  background: var(--bg-0);
  border: 1px solid var(--border-default);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--brand-sky);
  overflow-x: auto;
  line-height: 1.6;
  white-space: pre;
}

/* ═══════════════════════════════════════════
   STATUS BAR
   ═══════════════════════════════════════════ */

.status-strip {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-lg);
  padding: var(--space-lg);
  border-top: 1px solid var(--border-default);
  border-bottom: 1px solid var(--border-default);
  flex-wrap: wrap;
}

.status-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--brand-emerald);
  box-shadow: 0 0 8px var(--brand-emerald);
  animation: pulse-glow 2s infinite;
}

.status-value {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--brand-sky);
}

/* ═══════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════ */

.site-footer {
  padding: var(--space-3xl) 0;
  border-top: 1px solid var(--border-default);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
}

.footer-brand-desc {
  font-size: 0.88rem;
  color: var(--text-tertiary);
  line-height: 1.6;
  margin-top: var(--space-md);
  max-width: 300px;
}

.footer-col h4 {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-tertiary);
  margin-bottom: var(--space-md);
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: var(--space-sm);
}

.footer-col a {
  font-size: 0.88rem;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-xl);
  margin-top: var(--space-xl);
  border-top: 1px solid var(--border-default);
  font-size: 0.82rem;
  color: var(--text-tertiary);
}

/* ═══════════════════════════════════════════
   TOAST
   ═══════════════════════════════════════════ */

.toast {
  position: fixed;
  bottom: 32px;
  right: 32px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  background: var(--brand-indigo);
  color: #fff;
  font-size: 0.88rem;
  font-weight: 600;
  box-shadow: var(--shadow-lg);
  z-index: 200;
  transform: translateY(120px);
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

/* ═══════════════════════════════════════════
   ANIMATIONS
   ═══════════════════════════════════════════ */

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-16px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse-glow {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(1.1); box-shadow: 0 0 16px var(--brand-emerald); }
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* ═══════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════ */

@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .feature-card-wide { grid-column: span 2; }
  .tools-carousel { grid-template-columns: repeat(3, 1fr); }
  .workload-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-xl); }
}

@media (max-width: 768px) {
  :root { font-size: 15px; }

  .nav-links { display: none; }
  .mobile-toggle { display: block; }
  .nav-links.mobile-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg-1);
    border-bottom: 1px solid var(--border-default);
    padding: var(--space-lg);
    gap: var(--space-md);
  }

  .hero {
    padding-top: calc(64px + var(--space-3xl));
    padding-bottom: var(--space-2xl);
  }

  .hero-stats {
    flex-direction: column;
    gap: var(--space-lg);
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .feature-card-wide { grid-column: span 1; }

  .tools-carousel {
    grid-template-columns: repeat(2, 1fr);
  }

  .workload-grid {
    grid-template-columns: 1fr;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .docs-grid {
    grid-template-columns: 1fr;
  }

  .comparison-wrapper {
    margin: 0 calc(-1 * var(--space-lg));
    padding: 0 var(--space-lg);
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
  }

  .app-type-pills {
    flex-direction: column;
    align-items: center;
  }

  .code-tabs {
    flex-wrap: wrap;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .hero-actions .btn {
    width: 100%;
    max-width: 320px;
  }

  .tools-carousel {
    grid-template-columns: 1fr;
  }
}