/* ============================================
   Isolon — Professional Design System
   ============================================ */

:root {
  /* Core Palette */
  --bg-primary: #0a0a0f;
  --bg-secondary: #0f0f16;
  --bg-tertiary: #13131c;
  --bg-elevated: #181825;
  --bg-hover: #1e1e2e;
  --bg-glass: rgba(15, 15, 22, 0.7);

  --border-subtle: rgba(255,255,255,0.04);
  --border-default: rgba(255,255,255,0.07);
  --border-strong: rgba(255,255,255,0.12);
  --border-accent: rgba(255, 87, 34, 0.25);

  --text-primary: #f0f0f5;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  --text-dim: #4b5563;

  /* Accent — Deep Orange */
  --accent: #ff5722;
  --accent-light: #ff7043;
  --accent-glow: rgba(255, 87, 34, 0.15);
  --accent-dim: rgba(255, 87, 34, 0.08);
  --accent-border: rgba(255, 87, 34, 0.2);

  /* Secondary Accents */
  --success: #22c55e;
  --success-glow: rgba(34, 197, 94, 0.15);
  --warning: #f59e0b;
  --info: #3b82f6;
  --info-glow: rgba(59, 130, 246, 0.15);
  --purple: #a855f7;
  --purple-glow: rgba(168, 85, 247, 0.15);

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

  /* 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;

  /* Layout */
  --max-width: 1200px;
  --nav-height: 64px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.4);
  --shadow-md: 0 4px 24px rgba(0,0,0,0.5);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.6);
  --shadow-glow: 0 0 40px rgba(255, 87, 34, 0.08);
  --shadow-glow-strong: 0 0 60px rgba(255, 87, 34, 0.12);

  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ============================================
   Base & Reset
   ============================================ */

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

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

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  font-size: 15px;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Subtle noise texture overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 256px 256px;
}

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

ul, ol {
  list-style: none;
}

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

/* Selection */
::selection {
  background: rgba(255, 87, 34, 0.3);
  color: var(--text-primary);
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--bg-elevated);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--bg-hover);
}

/* ============================================
   Layout
   ============================================ */

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.container-narrow {
  max-width: 900px;
}

.container-wide {
  max-width: 1400px;
}

/* ============================================
   Typography
   ============================================ */

.h1 {
  font-size: clamp(2.25rem, 4.5vw, 3.75rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

.h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.h3 {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.h4 {
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text-primary);
}

.text-large {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

.text-body {
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--text-secondary);
}

.text-small {
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--text-muted);
}

.text-mono {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.5;
}

.accent-text {
  color: var(--accent);
}

.accent-gradient {
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================================
   Navigation
   ============================================ */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: rgba(10, 10, 15, 0.7);
  backdrop-filter: blur(20px) saturate(1.2);
  -webkit-backdrop-filter: blur(20px) saturate(1.2);
  border-bottom: 1px solid var(--border-subtle);
  transition: background var(--transition-base), border-color var(--transition-base);
}

.site-nav.scrolled {
  background: rgba(10, 10, 15, 0.9);
  border-bottom-color: var(--border-default);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  transition: opacity var(--transition-fast);
}

.nav-logo:hover {
  opacity: 0.85;
}

.nav-logo svg {
  flex-shrink: 0;
  filter: drop-shadow(0 0 8px rgba(255, 87, 34, 0.3));
}

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

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 6px 4px;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transition: width var(--transition-base);
}

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

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

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

.nav-mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: var(--space-sm);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.nav-mobile-toggle:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.05);
}

/* Mobile nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: rgba(15, 15, 22, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  padding: var(--space-md) var(--space-xl);
  flex-direction: column;
  gap: var(--space-sm);
  z-index: 999;
}

.mobile-nav.open {
  display: flex;
  animation: slideDown 0.3s ease;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

.mobile-nav a {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--border-subtle);
  transition: color var(--transition-fast), padding-left var(--transition-base);
}

.mobile-nav a:hover {
  color: var(--text-primary);
  padding-left: var(--space-sm);
}

.mobile-nav a:last-child {
  border-bottom: none;
}

/* ============================================
   Buttons
   ============================================ */

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

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: white;
  box-shadow: 0 4px 20px rgba(255, 87, 34, 0.25), inset 0 1px 0 rgba(255,255,255,0.15);
}

.btn-primary::before {
  background: linear-gradient(135deg, var(--accent-light), #ff8a65);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(255, 87, 34, 0.35), inset 0 1px 0 rgba(255,255,255,0.2);
}

.btn-primary:hover::before {
  opacity: 1;
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border-default);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.05);
}

.btn-secondary:hover {
  background: var(--bg-hover);
  border-color: var(--border-strong);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.3), inset 0 1px 0 rgba(255,255,255,0.08);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}

.btn-ghost:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.05);
}

.btn-sm {
  padding: 7px 14px;
  font-size: 0.8125rem;
}

.btn-lg {
  padding: 14px 28px;
  font-size: 0.9375rem;
}

.btn-block {
  width: 100%;
}

/* ============================================
   Sections
   ============================================ */

.section {
  padding: var(--space-4xl) 0;
  position: relative;
}

.section-sm {
  padding: var(--space-3xl) 0;
}

/* Subtle section separator */
.section + .section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  max-width: 800px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-default), transparent);
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto var(--space-3xl);
}

.section-header-left {
  text-align: left;
  margin-left: 0;
  margin-right: 0;
  max-width: 560px;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: var(--space-md);
}

.section-label::before {
  content: '';
  display: block;
  width: 24px;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
  border-radius: 2px;
}

.section-label-center::after {
  content: '';
  display: block;
  width: 24px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent));
  border-radius: 2px;
}

.section-label-center {
  justify-content: center;
}

.section-title {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-md);
}

.section-desc {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============================================
   Hero
   ============================================ */

.hero {
  padding: var(--space-4xl) 0 var(--space-3xl);
  position: relative;
  overflow: hidden;
  min-height: calc(100vh - var(--nav-height));
  display: flex;
  align-items: center;
}

/* Animated mesh gradient background */
.hero-bg-pattern {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 80% 60% at 20% 30%, rgba(255, 87, 34, 0.1) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 70%, rgba(168, 85, 247, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse 50% 40% at 50% 50%, rgba(59, 130, 246, 0.04) 0%, transparent 50%);
  animation: meshShift 20s ease-in-out infinite alternate;
}

@keyframes meshShift {
  0% {
    background-position: 0% 0%, 100% 100%, 50% 50%;
    filter: hue-rotate(0deg);
  }
  100% {
    background-position: 100% 100%, 0% 0%, 50% 50%;
    filter: hue-rotate(5deg);
  }
}

/* Grid pattern overlay */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.015) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 30%, transparent 70%);
}

/* Floating orbs */
.hero .orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  opacity: 0.4;
}

.orb-1 {
  width: 400px;
  height: 400px;
  background: var(--accent);
  top: -10%;
  right: -5%;
  animation: floatOrb 15s ease-in-out infinite;
}

.orb-2 {
  width: 300px;
  height: 300px;
  background: var(--purple);
  bottom: -10%;
  left: -5%;
  animation: floatOrb 18s ease-in-out infinite reverse;
}

@keyframes floatOrb {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -30px) scale(1.1); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  border-radius: 100px;
  padding: 6px 14px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--accent-light);
  margin-bottom: var(--space-xl);
  box-shadow: 0 0 20px rgba(255, 87, 34, 0.1);
  backdrop-filter: blur(8px);
}

.hero-badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse-dot 2s ease-in-out infinite;
  box-shadow: 0 0 8px var(--accent);
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
  font-size: clamp(2.5rem, 5.5vw, 4.25rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-lg);
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-xl);
  max-width: 560px;
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-3xl);
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: var(--space-3xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-subtle);
}

.hero-stat {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.hero-stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.hero-stat-label {
  font-size: 0.8125rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ============================================
   Cards
   ============================================ */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-lg);
}

.card-grid-2 {
  grid-template-columns: repeat(auto-fill, minmax(480px, 1fr));
}

.card-grid-3 {
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
}

.card-grid-4 {
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}

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

.card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(255,255,255,0.08), transparent 50%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.card:hover {
  border-color: var(--border-default);
  background: var(--bg-tertiary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg), 0 0 40px rgba(255,255,255,0.02);
}

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

.card-elevated {
  background: var(--bg-tertiary);
  border-color: var(--border-default);
}

.card-elevated:hover {
  border-color: var(--border-strong);
  background: var(--bg-elevated);
}

.card-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  color: var(--accent);
  transition: all var(--transition-base);
}

.card:hover .card-icon {
  background: var(--accent-glow);
  border-color: var(--accent-border);
  box-shadow: 0 0 16px var(--accent-glow);
  transform: scale(1.05);
}

.card-icon svg {
  width: 20px;
  height: 20px;
}

.card h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.card-featured {
  border-color: var(--accent-border);
  background: linear-gradient(180deg, rgba(255, 87, 34, 0.04) 0%, var(--bg-secondary) 100%);
}

.card-featured::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.5;
}

.card-featured:hover {
  border-color: rgba(255, 87, 34, 0.4);
  box-shadow: var(--shadow-lg), 0 0 40px rgba(255, 87, 34, 0.06);
}

/* ============================================
   Feature Sections
   ============================================ */

.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
  margin-bottom: var(--space-4xl);
}

.feature-row:last-child {
  margin-bottom: 0;
}

.feature-row.reverse {
  direction: rtl;
}

.feature-row.reverse > * {
  direction: ltr;
}

.feature-visual {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.feature-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 30% 20%, rgba(255, 87, 34, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 70% 80%, rgba(59, 130, 246, 0.03) 0%, transparent 50%);
  pointer-events: none;
}

.feature-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.feature-list-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  transition: background var(--transition-fast);
}

.feature-list-item:hover {
  background: rgba(255,255,255,0.02);
}

.feature-list-icon {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
  border: 1px solid var(--accent-border);
  transition: all var(--transition-base);
}

.feature-list-item:hover .feature-list-icon {
  background: var(--accent-glow);
  box-shadow: 0 0 12px var(--accent-glow);
  transform: scale(1.1);
}

.feature-list-icon svg {
  width: 12px;
  height: 12px;
  color: var(--accent);
}

/* ============================================
   Code Blocks
   ============================================ */

.code-block {
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
}

.code-block::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
}

.code-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-subtle);
}

.code-dots {
  display: flex;
  gap: 6px;
}

.code-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  transition: transform var(--transition-fast);
}

.code-header:hover .code-dot {
  transform: scale(1.2);
}

.code-dot-red { background: #ff5f57; box-shadow: 0 0 4px rgba(255, 95, 87, 0.4); }
.code-dot-yellow { background: #febc2e; box-shadow: 0 0 4px rgba(254, 188, 46, 0.4); }
.code-dot-green { background: #28c840; box-shadow: 0 0 4px rgba(40, 200, 64, 0.4); }

.code-filename {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-left: auto;
}

.code-block pre {
  margin: 0;
  padding: var(--space-md) var(--space-lg);
  overflow-x: auto;
}

.code-block code {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--text-primary);
}

/* Syntax colors with subtle glow */
.code-keyword { color: #c792ea; text-shadow: 0 0 8px rgba(199, 146, 234, 0.2); }
.code-string { color: #c3e88d; text-shadow: 0 0 8px rgba(195, 232, 141, 0.15); }
.code-func { color: #82aaff; text-shadow: 0 0 8px rgba(130, 170, 255, 0.2); }
.code-comment { color: #676e95; font-style: italic; }
.code-number { color: #f78c6c; text-shadow: 0 0 8px rgba(247, 140, 108, 0.15); }
.code-type { color: #ffcb6b; text-shadow: 0 0 8px rgba(255, 203, 107, 0.15); }
.code-tag { color: #f07178; }
.code-attr { color: #ffcb6b; }

/* ============================================
   Terminal / Diagram Visuals
   ============================================ */

.terminal-window {
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.7;
  position: relative;
}

.terminal-window::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.08), transparent);
}

.terminal-body {
  padding: var(--space-md) var(--space-lg);
  color: var(--text-secondary);
}

.terminal-prompt {
  color: var(--accent);
  font-weight: 600;
  margin-right: var(--space-sm);
  text-shadow: 0 0 8px rgba(255, 87, 34, 0.3);
}

.terminal-output {
  color: var(--text-muted);
  margin-left: var(--space-lg);
}

.diagram-box {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
  text-align: center;
  transition: all var(--transition-base);
  position: relative;
}

.diagram-box:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.diagram-box.primary {
  border-color: var(--accent-border);
  background: linear-gradient(180deg, rgba(255, 87, 34, 0.06), var(--bg-tertiary));
}

.diagram-box.primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.5;
}

.diagram-arrow {
  color: var(--text-dim);
  font-size: 1.25rem;
  text-align: center;
}

/* ============================================
   Tables
   ============================================ */

.data-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 0.875rem;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
}

.data-table thead {
  background: var(--bg-tertiary);
}

.data-table th {
  text-align: left;
  padding: var(--space-md) var(--space-lg);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-default);
}

.data-table td {
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  vertical-align: top;
  transition: background var(--transition-fast), color var(--transition-fast);
}

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

.data-table tbody tr:nth-child(even) {
  background: rgba(255,255,255,0.01);
}

.data-table tbody tr:hover {
  background: rgba(255,255,255,0.03);
}

.data-table tbody tr:hover td {
  color: var(--text-primary);
}

.data-table td:first-child {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-primary);
}

/* ============================================
   Tabs
   ============================================ */

.tabs {
  display: flex;
  gap: var(--space-xs);
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: var(--space-lg);
  position: relative;
}

.tab-btn {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  padding: var(--space-md) var(--space-lg);
  border: none;
  background: none;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: all var(--transition-fast);
  position: relative;
}

.tab-btn:hover {
  color: var(--text-secondary);
}

.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 20%;
  right: 20%;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  box-shadow: 0 0 12px var(--accent-glow);
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
  animation: fade-in-up 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes fade-in-up {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ============================================
   Badges & Tags
   ============================================ */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 100px;
  border: 1px solid;
  transition: all var(--transition-fast);
}

.badge-accent {
  background: var(--accent-dim);
  border-color: var(--accent-border);
  color: var(--accent-light);
  box-shadow: 0 0 12px var(--accent-dim);
}

.badge-success {
  background: rgba(34, 197, 94, 0.1);
  border-color: rgba(34, 197, 94, 0.25);
  color: var(--success);
  box-shadow: 0 0 12px var(--success-glow);
}

.badge-info {
  background: rgba(59, 130, 246, 0.1);
  border-color: rgba(59, 130, 246, 0.25);
  color: var(--info);
  box-shadow: 0 0 12px var(--info-glow);
}

/* Mode avatars for deployment cards */
.mode-avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 0.875rem;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.mode-avatar-standalone {
  background: linear-gradient(135deg, #22c55e, #16a34a);
  box-shadow: 0 4px 12px rgba(34, 197, 94, 0.25);
}

.mode-avatar-commander {
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.25);
}

.mode-avatar-worker {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.25);
}

/* Section variants */
.section-alt {
  background: var(--bg-secondary);
  position: relative;
}

.section-alt::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  max-width: 1000px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-default), transparent);
}

/* SDK switcher */
.sdk-switcher {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-subtle);
  padding: 12px 0;
}

.sdk-switcher-inner {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.sdk-switcher .badge {
  text-decoration: none;
  border-color: var(--border-default);
  color: var(--text-muted);
  transition: all var(--transition-fast);
}

.sdk-switcher .badge:hover {
  border-color: var(--border-strong);
  color: var(--text-secondary);
  background: rgba(255,255,255,0.03);
}

.sdk-switcher .badge-accent {
  border-color: var(--accent-border);
  color: var(--accent-light);
}

/* Architecture diagram layouts */
.diagram-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

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

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

.diagram-center-arrow {
  margin: var(--space-md) 0;
}

.diagram-arrow-center {
  align-self: center;
}

.diagram-box-blue {
  background: linear-gradient(180deg, rgba(59,130,246,0.1), var(--bg-tertiary));
  border-color: rgba(59,130,246,0.3);
}

.diagram-box-blue .h4 {
  color: #60a5fa;
}

.diagram-box-amber {
  background: linear-gradient(180deg, rgba(245,158,11,0.1), var(--bg-tertiary));
  border-color: rgba(245,158,11,0.3);
}

.diagram-box-amber .h4 {
  color: #fbbf24;
}

/* Numbered step icons */
.step-number {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 700;
  color: var(--accent);
}

.badge-purple {
  background: rgba(168, 85, 247, 0.1);
  border-color: rgba(168, 85, 247, 0.25);
  color: var(--purple);
  box-shadow: 0 0 12px var(--purple-glow);
}

/* ============================================
   CTA Banner
   ============================================ */

.cta-banner {
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(255, 87, 34, 0.08) 0%, transparent 70%),
    linear-gradient(180deg, rgba(255, 87, 34, 0.04), rgba(255, 87, 34, 0.01));
  border: 1px solid var(--accent-border);
  border-radius: var(--radius-lg);
  padding: var(--space-3xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.6;
}

.cta-banner::after {
  content: '';
  position: absolute;
  bottom: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 100%;
  background: radial-gradient(ellipse, rgba(255, 87, 34, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.cta-banner h2 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
  position: relative;
  z-index: 1;
}

.cta-banner p {
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
  z-index: 1;
}

/* ============================================
   Footer
   ============================================ */

.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-3xl) 0 var(--space-xl);
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  max-width: 1000px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-strong), transparent);
}

.site-footer::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 40%;
  height: 200px;
  background: radial-gradient(ellipse, rgba(255, 87, 34, 0.04) 0%, transparent 70%);
  pointer-events: none;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
  position: relative;
  z-index: 1;
}

.footer-brand .nav-logo {
  margin-bottom: var(--space-md);
}

.footer-brand p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  margin-bottom: var(--space-md);
}

.footer-col a,
.footer-col span {
  display: block;
  font-size: 0.875rem;
  color: var(--text-muted);
  padding: 6px 0;
  transition: all var(--transition-fast);
}

.footer-col a:hover {
  color: var(--text-primary);
  transform: translateX(2px);
}

.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: var(--space-xl);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
  position: relative;
  z-index: 1;
}

.footer-bottom p {
  font-size: 0.8125rem;
  color: var(--text-dim);
}

/* ============================================
   Utilities
   ============================================ */

.text-center { text-align: center; }
.text-left { text-align: left; }
.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }
.mt-xl { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }
.mt-3xl { margin-top: var(--space-3xl); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.flex-wrap { flex-wrap: wrap; }
.grid { display: grid; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.max-w-lg { max-width: 640px; }
.mx-auto { margin-left: auto; margin-right: auto; }
.w-full { width: 100%; }
.pb-2xl { padding-bottom: var(--space-2xl); }

/* ============================================
   Scroll Reveal Animation Classes
   ============================================ */

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ============================================
   Architecture Tabs
   ============================================ */

.arch-tabs {
  display: flex;
  gap: var(--space-xs);
  margin-bottom: var(--space-lg);
}

.arch-tab {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  padding: var(--space-md) var(--space-lg);
  border: 1px solid var(--border-subtle);
  background: var(--bg-secondary);
  color: var(--text-muted);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.arch-tab:hover {
  border-color: var(--border-default);
  color: var(--text-secondary);
}

.arch-tab.active {
  border-color: var(--accent-border);
  background: var(--accent-dim);
  color: var(--accent-light);
  box-shadow: 0 0 16px var(--accent-dim);
}

.arch-content {
  display: none;
}

.arch-content.active {
  display: block;
  animation: fade-in-up 0.4s ease;
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 900px) {
  .nav-links {
    display: none;
  }

  .nav-cta .btn-ghost {
    display: none;
  }

  .nav-mobile-toggle {
    display: block;
  }

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

  .feature-row {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .feature-row.reverse {
    direction: ltr;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    gap: var(--space-xl);
  }

  .hero {
    min-height: auto;
  }
}

@media (max-width: 640px) {
  :root {
    --space-xl: 20px;
    --space-2xl: 32px;
    --space-3xl: 40px;
    --space-4xl: 60px;
  }

  .container {
    padding: 0 var(--space-md);
  }

  .hero {
    padding: var(--space-3xl) 0 var(--space-2xl);
    min-height: auto;
  }

  .section {
    padding: var(--space-3xl) 0;
  }

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

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

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

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .card-grid,
  .card-grid-2,
  .card-grid-3,
  .card-grid-4 {
    grid-template-columns: 1fr;
  }

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

/* ============================================
   API Documentation Layout
   ============================================ */

.docs-layout {
  display: flex;
  gap: var(--space-3xl);
  align-items: flex-start;
}

.docs-sidebar {
  position: sticky;
  top: calc(var(--nav-height) + var(--space-xl));
  width: 220px;
  flex-shrink: 0;
  max-height: calc(100vh - var(--nav-height) - var(--space-xl) * 2);
  overflow-y: auto;
  padding-right: var(--space-md);
  scrollbar-width: thin;
  scrollbar-color: var(--border-default) transparent;
}

.docs-sidebar::-webkit-scrollbar {
  width: 4px;
}

.docs-sidebar::-webkit-scrollbar-thumb {
  background: var(--border-default);
  border-radius: 4px;
}

.sidebar-group {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  margin: var(--space-xl) 0 var(--space-sm);
  padding-left: var(--space-sm);
}

.sidebar-group:first-child {
  margin-top: 0;
}

.sidebar-link {
  display: block;
  padding: 6px var(--space-sm);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all var(--transition-fast);
  border-left: 2px solid transparent;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-link:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.sidebar-link.active {
  background: var(--accent-dim);
  color: var(--accent);
  border-left-color: var(--accent);
}

.docs-content {
  flex: 1;
  min-width: 0;
}

.docs-content .section-header-left {
  margin-bottom: var(--space-2xl);
}

.api-section {
  margin-bottom: var(--space-3xl);
}

.api-section-title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--border-default);
  scroll-margin-top: calc(var(--nav-height) + var(--space-lg));
}

.method-block {
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
  overflow: hidden;
  scroll-margin-top: calc(var(--nav-height) + var(--space-lg));
}

.method-block:last-child {
  margin-bottom: 0;
}

.method-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  background: rgba(255,255,255,0.02);
  border-bottom: 1px solid var(--border-default);
}

.method-tag {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--accent-dim);
  color: var(--accent);
}

.method-tag.static {
  background: var(--info-glow);
  color: var(--info);
}

.method-tag.async {
  background: var(--purple-glow);
  color: var(--purple);
}

.method-name {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  word-break: break-word;
}

.method-body {
  padding: var(--space-lg);
}

.method-desc {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: var(--space-md);
}

.method-signature {
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: var(--space-md) var(--space-lg);
  margin-bottom: var(--space-md);
  overflow-x: auto;
}

.method-signature pre {
  margin: 0;
  font-size: 13px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
}

.method-params {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  margin-bottom: var(--space-md);
}

.method-params th {
  text-align: left;
  padding: 8px 12px;
  font-weight: 600;
  color: var(--text-muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--border-default);
}

.method-params td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: top;
}

.method-params tr:last-child td {
  border-bottom: none;
}

.method-params code {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent-light);
  background: rgba(255,255,255,0.04);
  padding: 1px 5px;
  border-radius: 3px;
}

.method-returns {
  display: flex;
  align-items: baseline;
  gap: var(--space-sm);
  font-size: 13px;
  color: var(--text-secondary);
}

.method-returns strong {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.method-returns code {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent-light);
  background: rgba(255,255,255,0.04);
  padding: 1px 5px;
  border-radius: 3px;
}

.method-example {
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--border-subtle);
}

.method-example-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin-bottom: var(--space-sm);
}

.method-example .code-block {
  margin: 0;
}

@media (max-width: 960px) {
  .docs-layout {
    flex-direction: column;
    gap: var(--space-xl);
  }

  .docs-sidebar {
    position: relative;
    top: auto;
    width: 100%;
    max-height: none;
    overflow-x: auto;
    overflow-y: hidden;
    padding-right: 0;
    display: flex;
    gap: var(--space-xs);
    flex-wrap: wrap;
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--border-default);
  }

  .sidebar-group {
    display: none;
  }

  .sidebar-link {
    border-left: none;
    padding: 4px 10px;
    font-size: 12px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-default);
    border-radius: 999px;
    white-space: nowrap;
  }

  .sidebar-link:hover {
    border-color: var(--border-strong);
  }

  .sidebar-link.active {
    border-color: var(--accent);
  }

  .docs-content {
    width: 100%;
  }

  .method-signature pre {
    white-space: pre;
    word-break: normal;
  }
}