/* ============================================
   TABOO GAME HOMEPAGE - DESIGN SYSTEM
   ============================================ */

/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700;800;900&display=swap');

/* ============================================
   CSS VARIABLES - Design Tokens
   ============================================ */
:root {
  /* Color Palette */
  --color-primary: #8B5CF6;
  --color-primary-dark: #7C3AED;
  --color-secondary: #EC4899;
  --color-accent: #F59E0B;
  --color-bg-dark: #0F172A;
  --color-bg-darker: #020617;
  --color-bg-card: rgba(30, 41, 59, 0.6);
  --color-text-primary: #F8FAFC;
  --color-text-secondary: #CBD5E1;
  --color-text-muted: #94A3B8;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #8B5CF6 0%, #EC4899 100%);
  --gradient-secondary: linear-gradient(135deg, #EC4899 0%, #F59E0B 100%);
  --gradient-bg: linear-gradient(135deg, #0F172A 0%, #1E293B 50%, #0F172A 100%);
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 4rem;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 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: 0 0 30px rgba(139, 92, 246, 0.3);
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

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

/* Animated Background */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-bg);
  z-index: -2;
}

body::after {
  content: '';
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 50% 50%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
  animation: rotate 20s linear infinite;
  z-index: -1;
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: var(--space-md);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

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

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

/* ============================================
   LAYOUT COMPONENTS
   ============================================ */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

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

/* ============================================
   BUTTON COMPONENTS
   ============================================ */
.btn {
  display: inline-block;
  padding: var(--space-md) var(--space-xl);
  font-size: var(--font-size-lg);
  font-weight: 700;
  text-decoration: none;
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.1);
  transform: translateX(-100%);
  transition: transform var(--transition-base);
  z-index: -1;
}

.btn:hover::before {
  transform: translateX(0);
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 40px rgba(139, 92, 246, 0.5);
}

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

.btn-secondary:hover {
  background: var(--color-primary);
  transform: translateY(-2px);
}

.btn-pulse {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% {
    box-shadow: 0 0 30px rgba(139, 92, 246, 0.3);
  }
  50% {
    box-shadow: 0 0 50px rgba(139, 92, 246, 0.6);
  }
}

/* ============================================
   CARD COMPONENTS
   ============================================ */
.card {
  background: var(--color-bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition-base);
  z-index: -1;
}

.card:hover {
  transform: translateY(-8px);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.card:hover::before {
  opacity: 0.1;
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 2;
  animation: fadeInUp 1s ease-out;
}

.hero h1 {
  font-size: var(--font-size-6xl);
  margin-bottom: var(--space-lg);
  animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-subtitle {
  font-size: var(--font-size-2xl);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2xl);
  animation: fadeInUp 1s ease-out 0.4s both;
}

.hero-buttons {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 1s ease-out 0.6s both;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================
   GRID LAYOUTS
   ============================================ */
.grid {
  display: grid;
  gap: var(--space-xl);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* ============================================
   ICON STYLES
   ============================================ */
.icon {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  border-radius: var(--radius-xl);
  margin-bottom: var(--space-md);
  font-size: var(--font-size-3xl);
  transition: all var(--transition-base);
}

.card:hover .icon {
  transform: scale(1.1) rotate(5deg);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--color-bg-darker);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--space-xl) 0;
  text-align: center;
  color: var(--color-text-muted);
}

/* ============================================
   ANIMATIONS & UTILITIES
   ============================================ */
.fade-in {
  opacity: 0;
  animation: fadeIn 1s ease-out forwards;
}

@keyframes fadeIn {
  to { opacity: 1; }
}

.scroll-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all var(--transition-slow);
}

.scroll-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 768px) {
  :root {
    --font-size-6xl: 2.5rem;
    --font-size-5xl: 2rem;
    --font-size-4xl: 1.75rem;
    --space-3xl: 3rem;
  }
  
  .hero h1 {
    font-size: var(--font-size-5xl);
  }
  
  .hero-subtitle {
    font-size: var(--font-size-lg);
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .btn {
    width: 100%;
    max-width: 300px;
  }
  
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-md);
  }
  
  .section {
    padding: var(--space-2xl) 0;
  }
}