/* ============================================
 * CSS VARIABLES & DESIGN TOKENS
 * ============================================ */

:root {
  /* Primary: Deep Rich Purple */
  --purple-50: #faf5ff;
  --purple-100: #f3e8ff;
  --purple-200: #e9d5ff;
  --purple-300: #d8b4fe;
  --purple-400: #c084fc;
  --purple-500: #a855f7;
  --purple-600: #9333ea;
  --purple-700: #7c3aed;
  --purple-800: #6b21a8;
  --purple-900: #581c87;
  --purple-950: #3b0764;
  
  /* Secondary: Technology Blue */
  --blue-50: #eff6ff;
  --blue-100: #dbeafe;
  --blue-200: #bfdbfe;
  --blue-300: #93c5fd;
  --blue-400: #60a5fa;
  --blue-500: #3b82f6;
  --blue-600: #2563eb;
  --blue-700: #1d4ed8;
  --blue-800: #1e40af;
  --blue-900: #1e3a8a;
  --blue-950: #172554;
  
  /* Accent: Libre Green */
  --green-50: #f0fdf4;
  --green-100: #dcfce7;
  --green-200: #bbf7d0;
  --green-300: #86efac;
  --green-400: #4ade80;
  --green-500: #22c55e;
  --green-600: #16a34a;
  --green-700: #15803d;
  --green-800: #166534;
  --green-900: #14532d;
  --green-950: #052e16;
  
  /* Neutral */
  --gray-50: #fafafa;
  --gray-100: #f4f4f5;
  --gray-200: #e4e4e7;
  --gray-300: #d4d4d8;
  --gray-400: #a1a1aa;
  --gray-500: #71717a;
  --gray-600: #52525b;
  --gray-700: #3f3f46;
  --gray-800: #27272a;
  --gray-900: #18181b;
  --gray-950: #09090b;
  
  /* Semantic Colors */
  --color-primary: var(--purple-700);
  --color-primary-hover: var(--purple-800);
  --color-primary-light: var(--purple-100);
  --color-primary-lighter: var(--purple-50);
  
  --color-secondary: var(--blue-600);
  --color-secondary-hover: var(--blue-700);
  --color-secondary-light: var(--blue-100);
  
  --color-accent: var(--green-500);
  --color-accent-hover: var(--green-600);
  --color-accent-light: var(--green-100);
  
  --color-bg: #ffffff;
  --color-bg-secondary: var(--gray-50);
  --color-surface: #ffffff;
  --color-text: var(--gray-900);
  --color-text-secondary: var(--gray-600);
  --color-text-muted: var(--gray-400);
  --color-border: var(--gray-200);
  
  /* Typography */
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", monospace;
  
  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-24: 6rem;
  
  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1);
  --shadow-glow-purple: 0 0 40px rgba(124, 58, 237, 0.3);
  --shadow-glow-blue: 0 0 40px rgba(37, 99, 235, 0.3);
  --shadow-glow-green: 0 0 40px rgba(34, 197, 94, 0.3);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
}

/* Dark mode */
@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: var(--gray-900);
    --color-bg-secondary: var(--gray-800);
    --color-surface: var(--gray-800);
    --color-text: var(--gray-50);
    --color-text-secondary: var(--gray-300);
    --color-text-muted: var(--gray-500);
    --color-border: var(--gray-700);
    --color-primary: var(--purple-400);
    --color-primary-hover: var(--purple-300);
    --color-primary-light: var(--purple-900);
    --color-secondary: var(--blue-400);
    --color-secondary-hover: var(--blue-300);
    --color-secondary-light: var(--blue-900);
    --color-accent: var(--green-400);
    --color-accent-hover: var(--green-300);
    --color-accent-light: var(--green-900);
  }
}

/* ============================================
 * BASE RESET
 * ============================================ */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================
 * TYPOGRAPHY
 * ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-4);
}

h1 { font-size: 3rem; letter-spacing: -0.02em; }
h2 { font-size: 2.25rem; letter-spacing: -0.01em; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
  margin-bottom: var(--space-4);
  color: var(--color-text-secondary);
}

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

a:hover {
  color: var(--color-primary-hover);
}

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--color-bg-secondary);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  color: var(--color-primary);
}

pre {
  font-family: var(--font-mono);
  background: var(--gray-900);
  color: var(--gray-50);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  overflow-x: auto;
  font-size: 0.875rem;
  line-height: 1.7;
  margin: var(--space-4) 0;
}

pre code {
  background: none;
  padding: 0;
  color: inherit;
}

/* ============================================
 * LAYOUT
 * ============================================ */

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.section {
  padding: var(--space-24) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-12);
}

.section-header h2 {
  margin-bottom: var(--space-4);
}

.section-header p {
  font-size: 1.125rem;
  max-width: 600px;
  margin: 0 auto;
}

/* ============================================
 * HEADER & NAVIGATION
 * ============================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

@media (prefers-color-scheme: dark) {
  .site-header {
    background: rgba(24, 24, 27, 0.8);
  }
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-4) var(--space-6);
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-text);
}

.logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--purple-600), var(--blue-600));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1rem;
}

.nav-links {
  display: flex;
  gap: var(--space-8);
  list-style: none;
}

.nav-links a {
  color: var(--color-text-secondary);
  font-weight: 500;
  padding: var(--space-2) 0;
  position: relative;
}

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

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--purple-600), var(--blue-600));
  transition: width var(--transition-base);
}

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

.nav-cta {
  background: linear-gradient(135deg, var(--purple-600), var(--blue-600));
  color: white;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  font-weight: 600;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-purple);
  color: white;
}

/* ============================================
 * HERO SECTION
 * ============================================ */

.hero {
  padding: var(--space-24) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 30%, var(--purple-100) 0%, transparent 50%),
              radial-gradient(circle at 70% 70%, var(--blue-100) 0%, transparent 50%);
  animation: hero-glow 20s ease-in-out infinite;
  z-index: -1;
}

@media (prefers-color-scheme: dark) {
  .hero::before {
    background: radial-gradient(circle at 30% 30%, var(--purple-950) 0%, transparent 50%),
                radial-gradient(circle at 70% 70%, var(--blue-950) 0%, transparent 50%);
  }
}

@keyframes hero-glow {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  25% { transform: translate(2%, 2%) rotate(1deg); }
  50% { transform: translate(-1%, 3%) rotate(-1deg); }
  75% { transform: translate(1%, -2%) rotate(0.5deg); }
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-primary-light);
  color: var(--color-primary);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: var(--space-6);
}

.hero h1 {
  font-size: 4rem;
  font-weight: 800;
  margin-bottom: var(--space-6);
  background: linear-gradient(135deg, var(--purple-700), var(--blue-600), var(--green-500));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.5rem;
  color: var(--color-text-secondary);
  max-width: 700px;
  margin: 0 auto var(--space-8);
  line-height: 1.5;
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================
 * BUTTONS
 * ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  border: none;
  transition: all var(--transition-fast);
}

.btn-primary {
  background: linear-gradient(135deg, var(--purple-600), var(--blue-600));
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-purple);
  color: white;
}

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 2px solid var(--color-border);
}

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

.btn-accent {
  background: linear-gradient(135deg, var(--green-500), var(--green-600));
  color: white;
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-green);
  color: white;
}

/* ============================================
 * FEATURE CARDS
 * ============================================ */

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-6);
}

.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: all var(--transition-base);
}

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

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--space-4);
}

.feature-icon.purple {
  background: var(--purple-100);
  color: var(--purple-600);
}

.feature-icon.blue {
  background: var(--blue-100);
  color: var(--blue-600);
}

.feature-icon.green {
  background: var(--green-100);
  color: var(--green-600);
}

.feature-card h3 {
  margin-bottom: var(--space-3);
}

.feature-card p {
  margin-bottom: 0;
}

/* ============================================
 * ECOSYSTEM SECTION
 * ============================================ */

.ecosystem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-8);
}

.ecosystem-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  position: relative;
  overflow: hidden;
}

.ecosystem-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
}

.ecosystem-card.astralis::before {
  background: linear-gradient(90deg, var(--blue-500), var(--blue-600));
}

.ecosystem-card.inversion::before {
  background: linear-gradient(90deg, var(--green-500), var(--green-600));
}

.ecosystem-card.spry::before {
  background: linear-gradient(90deg, var(--purple-500), var(--purple-600));
}

.ecosystem-card h3 {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.ecosystem-logo {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: white;
}

.ecosystem-card.astralis .ecosystem-logo {
  background: linear-gradient(135deg, var(--blue-500), var(--blue-700));
}

.ecosystem-card.inversion .ecosystem-logo {
  background: linear-gradient(135deg, var(--green-500), var(--green-700));
}

.ecosystem-card.spry .ecosystem-logo {
  background: linear-gradient(135deg, var(--purple-500), var(--purple-700));
}

.ecosystem-card .tag {
  display: inline-block;
  background: var(--color-bg-secondary);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  margin-right: var(--space-2);
  margin-bottom: var(--space-2);
}

/* ============================================
 * STATS SECTION
 * ============================================ */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-6);
}

.stat-card {
  text-align: center;
  padding: var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
}

.stat-value {
  font-size: 3rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--purple-600), var(--blue-600));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-2);
}

.stat-label {
  color: var(--color-text-secondary);
  font-weight: 500;
}

/* ============================================
 * PARTICLE CANVAS DEMO
 * ============================================ */

.demo-section {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  margin: var(--space-8) 0;
}

.demo-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
  gap: var(--space-4);
}

.demo-controls {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.demo-btn {
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.demo-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.demo-btn.active {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

.particle-canvas {
  width: 100%;
  height: 400px;
  background: var(--gray-900);
  border-radius: var(--radius-xl);
  position: relative;
  overflow: hidden;
}

/* ============================================
 * AURORA CANVAS DEMO
 * ============================================ */

.aurora-canvas {
  width: 100%;
  height: 400px;
  background: linear-gradient(180deg, #050510 0%, #0a0a20 50%, #0f0f2a 100%);
  border-radius: var(--radius-xl);
  position: relative;
  overflow: hidden;
  box-shadow: inset 0 0 100px rgba(124, 58, 237, 0.1);
}

/* Starfield background */
.aurora-canvas::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(1px 1px at 20% 30%, rgba(255,255,255,0.8), transparent),
    radial-gradient(1px 1px at 40% 70%, rgba(255,255,255,0.6), transparent),
    radial-gradient(1.5px 1.5px at 60% 20%, rgba(255,255,255,0.9), transparent),
    radial-gradient(1px 1px at 80% 50%, rgba(255,255,255,0.5), transparent),
    radial-gradient(1px 1px at 10% 80%, rgba(255,255,255,0.7), transparent),
    radial-gradient(1.5px 1.5px at 90% 10%, rgba(255,255,255,0.8), transparent),
    radial-gradient(1px 1px at 30% 50%, rgba(255,255,255,0.4), transparent),
    radial-gradient(1px 1px at 70% 90%, rgba(255,255,255,0.6), transparent);
  background-size: 200px 200px;
  animation: twinkle 4s ease-in-out infinite alternate;
  z-index: 0;
}

@keyframes twinkle {
  0% { opacity: 0.5; }
  100% { opacity: 1; }
}

.aurora-wave {
  position: absolute;
  left: -20%;
  right: -20%;
  height: 80px;
  top: var(--wave-y, 30%);
  background: linear-gradient(90deg, 
    transparent 0%, 
    var(--wave-color1, #22c55e) 20%, 
    var(--wave-color2, #7c3aed) 50%, 
    var(--wave-color1, #22c55e) 80%, 
    transparent 100%
  );
  opacity: var(--wave-opacity, 0.5);
  filter: blur(25px);
  z-index: 1;
  /* Subtle pulsing animation only - no dramatic movement */
  animation: aurora-pulse 4s ease-in-out infinite;
  animation-delay: var(--wave-delay, 0s);
  /* Smooth transitions for server-side parameter changes */
  transition: top 2s ease-in-out, opacity 2s ease-in-out;
}

/* Gentle pulsing - just opacity and slight scale */
@keyframes aurora-pulse {
  0%, 100% {
    opacity: var(--wave-opacity, 0.5);
    filter: blur(25px);
  }
  50% {
    opacity: calc(var(--wave-opacity, 0.5) * 1.3);
    filter: blur(30px);
  }
}

/* Glow effect for waves */
.aurora-wave::after {
  content: '';
  position: absolute;
  inset: -50%;
  background: inherit;
  filter: blur(40px);
  opacity: 0.5;
  animation: aurora-glow 4s ease-in-out infinite alternate;
  animation-delay: var(--wave-delay, 0s);
}

@keyframes aurora-glow {
  0% { opacity: 0.3; filter: blur(40px); }
  100% { opacity: 0.6; filter: blur(60px); }
}

.aurora-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-6);
  padding: var(--space-4);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
}

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

.aurora-stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
}

.aurora-stat-label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.particle-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-6);
  padding: var(--space-4);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
}

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

.particle-stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
}

.particle-stat-label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ============================================
 * FREEDOM SECTION
 * ============================================ */

.freedom-section {
  background: linear-gradient(135deg, var(--green-50), var(--blue-50));
  border-radius: var(--radius-2xl);
  padding: var(--space-16);
  text-align: center;
}

@media (prefers-color-scheme: dark) {
  .freedom-section {
    background: linear-gradient(135deg, var(--green-950), var(--blue-950));
  }
}

.freedom-icon {
  font-size: 4rem;
  margin-bottom: var(--space-6);
}

.freedom-section h2 {
  margin-bottom: var(--space-4);
}

.freedom-section p {
  max-width: 700px;
  margin: 0 auto var(--space-8);
  font-size: 1.125rem;
}

.freedom-values {
  display: flex;
  justify-content: center;
  gap: var(--space-8);
  flex-wrap: wrap;
  margin-bottom: var(--space-8);
}

.freedom-value {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 600;
}

.freedom-value svg {
  color: var(--green-500);
}

/* ============================================
 * CODE BLOCKS
 * ============================================ */

.code-block {
  background: var(--gray-900);
  border-radius: var(--radius-xl);
  overflow: hidden;
  margin: var(--space-6) 0;
}

.code-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-3) var(--space-4);
  background: var(--gray-800);
  border-bottom: 1px solid var(--gray-700);
}

.code-lang {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--gray-400);
  text-transform: uppercase;
}

.code-dots {
  display: flex;
  gap: var(--space-2);
}

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

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

.code-block pre {
  margin: 0;
  border-radius: 0;
}

/* Syntax highlighting */
.code-keyword { color: #c792ea; }
.code-type { color: #82aaff; }
.code-string { color: #c3e88d; }
.code-number { color: #f78c6c; }
.code-comment { color: #546e7a; font-style: italic; }
.code-function { color: #82aaff; }
.code-operator { color: #89ddff; }

/* ============================================
 * FOOTER
 * ============================================ */

.site-footer {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  padding: var(--space-12) 0;
  margin-top: var(--space-24);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-8);
}

@media (max-width: 768px) {
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

.footer-brand {
  max-width: 300px;
}

@media (max-width: 768px) {
  .footer-brand {
    max-width: none;
  }
}

.footer-brand .logo {
  margin-bottom: var(--space-4);
}

@media (max-width: 768px) {
  .footer-brand .logo {
    justify-content: center;
  }
}

.footer-brand p {
  font-size: 0.875rem;
}

.footer-section h4 {
  margin-bottom: var(--space-4);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--space-2);
}

.footer-links a {
  color: var(--color-text-secondary);
  font-size: 0.875rem;
}

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

.footer-bottom {
  margin-top: var(--space-8);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
}

@media (max-width: 768px) {
  .footer-bottom {
    justify-content: center;
    text-align: center;
  }
}

.footer-bottom p {
  font-size: 0.875rem;
  margin: 0;
}

.footer-social {
  display: flex;
  gap: var(--space-4);
}

.footer-social a {
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

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

/* ============================================
 * RESPONSIVE
 * ============================================ */

@media (max-width: 768px) {
  h1 { font-size: 2.5rem; }
  h2 { font-size: 1.75rem; }
  
  .hero h1 { font-size: 2.5rem; }
  .hero-subtitle { font-size: 1.125rem; }
  
  .nav-links { display: none; }
  
  .features-grid,
  .ecosystem-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
  }
}

/* ============================================
 * VIEW TRANSITIONS (for smooth HTMX swaps)
 * ============================================ */

/* View Transition API styles for cross-fade */
::view-transition-old(root),
::view-transition-new(root) {
  animation-duration: 0.3s;
}

/* Smooth wave entrance when added via HTMX */
.aurora-wave.htmx-added {
  animation: aurora-pulse 4s ease-in-out infinite;
}

/* ============================================
 * ANIMATIONS
 * ============================================ */

@keyframes fade-in {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.animate-fade-in {
  animation: fade-in 0.6s ease-out;
}

.animate-pulse {
  animation: pulse 2s ease-in-out infinite;
}

.animate-float {
  animation: float 3s ease-in-out infinite;
}

/* ============================================
 * UTILITY CLASSES
 * ============================================ */

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

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

.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }

.mt-4 { margin-top: var(--space-4); }
.mb-4 { margin-bottom: var(--space-4); }
.my-8 { margin-top: var(--space-8); margin-bottom: var(--space-8); }

.hidden { display: none; }
.flex { display: flex; }
.grid { display: grid; }

.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }

.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }