/* Twixos Tournament Platform - Modern Gaming UI */

/* Light Theme (Default) */
:root,
[data-theme="light"] {
  /* Primary Colors */
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #818cf8;

  /* Accent Colors */
  --accent: #f59e0b;
  --accent-dark: #d97706;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --info: #3b82f6;

  /* Neutral Colors - Light Theme */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --text-primary: #1e293b;
  --text-secondary: #475569;
  --text-muted: #64748b;

  /* Border & Shadow */
  --border-color: #e2e8f0;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.15);

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
}

/* Dark Theme */
[data-theme="dark"] {
  /* Primary Colors - More vibrant */
  --primary: #8b5cf6;
  --primary-dark: #7c3aed;
  --primary-light: #a78bfa;

  /* Accent Colors - Gaming aesthetics */
  --accent: #f59e0b;
  --accent-dark: #d97706;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --info: #3b82f6;
  --neon-blue: #00d4ff;
  --neon-purple: #b829ff;
  --neon-pink: #ff006e;

  /* Neutral Colors - Dark Theme */
  --bg-primary: #0a0e1a;
  --bg-secondary: #151b2d;
  --bg-tertiary: #1f2937;
  --text-primary: #ffffff;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;

  /* Border & Shadow - Enhanced with glow */
  --border-color: #2d3548;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
  --glow-primary: 0 0 20px rgba(139, 92, 246, 0.5);
  --glow-accent: 0 0 20px rgba(245, 158, 11, 0.5);
  --glow-neon: 0 0 30px rgba(0, 212, 255, 0.6);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

/* Dark theme has animated gradient background */
[data-theme="dark"] body {
  background: linear-gradient(135deg, #0a0e1a 0%, #151b2d 50%, #1a1f35 100%);
  position: relative;
  overflow-x: hidden;
}

/* Animated gradient overlay */
[data-theme="dark"] body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(circle at 20% 50%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(245, 158, 11, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 40% 20%, rgba(0, 212, 255, 0.05) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
  animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.1); }
}

[data-theme="dark"] .container,
[data-theme="dark"] .navbar,
[data-theme="dark"] main {
  position: relative;
  z-index: 1;
}

/* Header/Navigation - Glassmorphism */
.navbar {
  background: rgba(248, 250, 252, 0.9);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow);
}

[data-theme="dark"] .navbar {
  background: rgba(21, 27, 45, 0.85);
  border-bottom: 1px solid rgba(139, 92, 246, 0.2);
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.logo {
  font-size: 1.75rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
  position: relative;
  transition: all 0.3s ease;
  letter-spacing: -0.5px;
}

[data-theme="dark"] .logo {
  background: linear-gradient(135deg, #a78bfa 0%, #f59e0b 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 8px rgba(139, 92, 246, 0.5));
}

.logo:hover {
  transform: scale(1.05);
  filter: drop-shadow(0 0 12px rgba(139, 92, 246, 0.8));
}

.nav-menu {
  display: flex;
  gap: var(--spacing-md);
  list-style: none;
  align-items: center;
}

.nav-menu a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
}

.nav-menu a:hover {
  color: var(--primary-light);
  background: rgba(99, 102, 241, 0.1);
}

.nav-menu a.active {
  color: var(--primary);
}

/* Container */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Hero Section - Enhanced with animation */
.hero {
  text-align: center;
  padding: 4rem 2rem;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(245, 158, 11, 0.1) 100%);
  border-radius: var(--radius-xl);
  margin: var(--spacing-lg) 0;
  position: relative;
  overflow: hidden;
}

[data-theme="dark"] .hero {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.15) 0%, rgba(245, 158, 11, 0.15) 100%);
  border: 1px solid rgba(139, 92, 246, 0.2);
  box-shadow: 0 8px 32px rgba(139, 92, 246, 0.2);
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.1) 0%, transparent 70%);
  animation: heroGlow 8s ease-in-out infinite;
  pointer-events: none;
}

@keyframes heroGlow {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(10%, 10%) scale(1.1); }
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  margin-bottom: var(--spacing-md);
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
  line-height: 1.2;
}

[data-theme="dark"] .hero h1 {
  background: linear-gradient(135deg, #a78bfa 0%, #fbbf24 50%, #f59e0b 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  background-size: 200% auto;
  animation: shimmer 3s linear infinite;
}

@keyframes shimmer {
  0% { background-position: 0% center; }
  100% { background-position: 200% center; }
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
  position: relative;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Buttons - Enhanced with glow effects */
.btn {
  padding: 0.875rem 1.75rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  text-decoration: none;
  display: inline-block;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: none;
  cursor: pointer;
  font-size: 1rem;
  position: relative;
  overflow: hidden;
  letter-spacing: 0.3px;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

[data-theme="dark"] .btn-primary {
  background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
  box-shadow: 0 4px 20px rgba(139, 92, 246, 0.4);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.5);
}

[data-theme="dark"] .btn-primary:hover {
  box-shadow: 0 8px 30px rgba(139, 92, 246, 0.6), var(--glow-primary);
}

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

[data-theme="dark"] .btn-secondary {
  background: rgba(31, 41, 55, 0.5);
  border: 1px solid rgba(139, 92, 246, 0.3);
  backdrop-filter: blur(10px);
}

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

[data-theme="dark"] .btn-secondary:hover {
  background: rgba(139, 92, 246, 0.2);
  border-color: var(--primary-light);
  box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3);
}

.btn-accent {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  color: white;
  box-shadow: 0 4px 15px rgba(245, 158, 11, 0.3);
}

.btn-accent:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(245, 158, 11, 0.5), var(--glow-accent);
}

.btn-success {
  background: linear-gradient(135deg, var(--success) 0%, #059669 100%);
  color: white;
  box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

.btn-success:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(16, 185, 129, 0.5);
}

.btn-block {
  display: block;
  width: 100%;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
}

/* Cards - Glassmorphism with enhanced effects */
.card {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

[data-theme="dark"] .card {
  background: rgba(31, 41, 55, 0.5);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid rgba(139, 92, 246, 0.2);
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  opacity: 0;
  transition: opacity 0.4s;
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
  border-color: var(--primary);
}

[data-theme="dark"] .card:hover {
  box-shadow: 0 12px 48px rgba(139, 92, 246, 0.3), var(--glow-primary);
  border-color: var(--primary-light);
}

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

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.card-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
}

.card-body {
  color: var(--text-secondary);
}

/* Grid Layouts */
.grid {
  display: grid;
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0;
}

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

.grid-3 {
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
}

/* Tournament Card */
.tournament-card {
  position: relative;
  overflow: hidden;
}

.tournament-badge {
  position: absolute;
  top: var(--spacing-sm);
  right: var(--spacing-sm);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-md);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.badge-active {
  background: var(--success);
  color: white;
}

.badge-upcoming {
  background: var(--accent);
  color: white;
}

.badge-ended {
  background: var(--bg-tertiary);
  color: var(--text-muted);
}

.tournament-info {
  display: flex;
  justify-content: space-between;
  margin: var(--spacing-sm) 0;
  font-size: 0.9rem;
}

.info-item {
  display: flex;
  flex-direction: column;
}

.info-label {
  color: var(--text-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
}

.info-value {
  color: var(--text-primary);
  font-weight: 600;
}

/* Stats */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0;
}

.stat-card {
  background: var(--bg-secondary);
  padding: var(--spacing-md);
  border-radius: var(--radius-lg);
  text-align: center;
  border: 1px solid var(--border-color);
}

.stat-value {
  font-size: 2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-top: var(--spacing-xs);
}

/* Forms */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
  color: var(--text-primary);
}

.form-input {
  width: 100%;
  padding: 0.75rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 1rem;
  transition: all 0.2s;
}

.form-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-input::placeholder {
  color: var(--text-muted);
}

/* Leaderboard */
.leaderboard {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.leaderboard-header {
  background: var(--bg-tertiary);
  padding: var(--spacing-md);
  font-weight: 700;
  display: grid;
  grid-template-columns: 60px 1fr auto;
  gap: var(--spacing-md);
}

.leaderboard-row {
  padding: var(--spacing-md);
  display: grid;
  grid-template-columns: 60px 1fr auto;
  gap: var(--spacing-md);
  align-items: center;
  border-bottom: 1px solid var(--border-color);
  transition: background 0.2s;
}

.leaderboard-row:hover {
  background: var(--bg-tertiary);
}

.leaderboard-row:last-child {
  border-bottom: none;
}

.rank {
  font-size: 1.5rem;
  font-weight: 800;
  text-align: center;
}

.rank-1 { color: #fbbf24; }
.rank-2 { color: #94a3b8; }
.rank-3 { color: #fb923c; }

.player-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.score {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-light);
}

/* Wallet */
.wallet-balances {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0;
}

.balance-card {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  text-align: center;
}

.balance-icon {
  font-size: 2rem;
  margin-bottom: var(--spacing-sm);
}

.balance-amount {
  font-size: 2rem;
  font-weight: 800;
  margin: var(--spacing-sm) 0;
}

.balance-label {
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* Alerts */
.alert {
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  margin: var(--spacing-md) 0;
  border-left: 4px solid;
}

.alert-success {
  background: rgba(16, 185, 129, 0.1);
  border-color: var(--success);
  color: var(--success);
}

.alert-error {
  background: rgba(239, 68, 68, 0.1);
  border-color: var(--danger);
  color: var(--danger);
}

.alert-info {
  background: rgba(99, 102, 241, 0.1);
  border-color: var(--primary);
  color: var(--primary-light);
}

/* Loading Spinner */
.spinner {
  border: 3px solid var(--bg-tertiary);
  border-top: 3px solid var(--primary);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
  margin: var(--spacing-lg) auto;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Countdown Timer */
.countdown {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  margin: var(--spacing-md) 0;
}

.countdown-item {
  background: var(--bg-tertiary);
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
  text-align: center;
  min-width: 60px;
}

.countdown-value {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary-light);
}

.countdown-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
}

/* Footer */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: var(--spacing-lg) 0;
  margin-top: var(--spacing-xl);
  text-align: center;
  color: var(--text-muted);
}

/* Game Canvas */
#game-canvas {
  max-width: 100%;
  height: auto;
  background: var(--bg-tertiary);
}

/* Mobile Menu */
@media (max-width: 1024px) {
  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    flex-direction: column;
    padding: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
  }

  .nav-menu.active {
    display: flex;
  }

  .nav-menu a {
    display: block;
    width: 100%;
    text-align: center;
  }

  .navbar .container {
    position: relative;
  }
}

/* Responsive */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }

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

  .leaderboard-header,
  .leaderboard-row {
    grid-template-columns: 50px 1fr 80px;
    gap: var(--spacing-sm);
    font-size: 0.9rem;
  }

  .tournament-info {
    flex-direction: column;
    gap: var(--spacing-xs);
  }

  .info-item {
    flex-direction: row;
    justify-content: space-between;
    width: 100%;
  }

  .flex.gap-1 {
    flex-direction: column;
  }

  .flex.gap-1 > * {
    width: 100%;
  }

  #game-canvas {
    max-width: 100vw;
    width: 100%;
  }
}

/* Loading Animation */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.loading {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

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

.animate-in {
  animation: slideIn 0.3s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.fade-in {
  animation: fadeIn 0.5s ease-in;
}

/* Mobile Menu Button */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
}

@media (max-width: 1024px) {
  .mobile-menu-btn {
    display: block;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    flex-direction: column;
    padding: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    z-index: 1000;
  }

  .nav-menu.active {
    display: flex;
    animation: slideIn 0.3s ease-out;
  }

  .nav-menu li {
    width: 100%;
  }

  .nav-menu a {
    display: block;
    width: 100%;
    text-align: center;
  }
}

/* Search and Filter Styles */
.search-filter-section {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  margin: var(--spacing-lg) 0;
  box-shadow: var(--shadow);
}

.search-bar-wrapper {
  margin-bottom: var(--spacing-md);
}

.search-input-container {
  position: relative;
  display: flex;
  align-items: center;
}

.search-input {
  width: 100%;
  padding: 0.75rem 2.5rem;
  background: var(--bg-tertiary);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 1rem;
  transition: all 0.3s;
}

.search-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
  background: rgba(51, 65, 85, 0.8);
}

.search-input::placeholder {
  color: var(--text-muted);
}

.search-icon {
  position: absolute;
  left: 1rem;
  font-size: 1.25rem;
  color: var(--text-muted);
  pointer-events: none;
}

.clear-search-btn {
  position: absolute;
  right: 1rem;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  transition: color 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.clear-search-btn:hover {
  color: var(--primary-light);
}

/* Filters Container */
.filters-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--spacing-md);
  align-items: flex-end;
}

.filter-group {
  display: flex;
  flex-direction: column;
}

.filter-label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.filter-select {
  width: 100%;
  padding: 0.75rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.9rem;
  transition: all 0.2s;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23cbd5e1' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  background-color: var(--bg-tertiary);
  padding-right: 2rem;
}

.filter-select:hover {
  border-color: var(--primary);
  background-color: rgba(51, 65, 85, 0.8);
}

.filter-select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.reset-filters-btn {
  width: 100%;
  padding: 0.75rem 1.5rem;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s;
  font-weight: 600;
}

.reset-filters-btn:hover {
  background: var(--border-color);
  border-color: var(--primary);
}

/* Results Info Bar */
.results-info-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) 0;
  margin: var(--spacing-md) 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.results-count {
  font-weight: 600;
  color: var(--primary-light);
}

#results-count {
  font-weight: 700;
  color: var(--accent);
}

/* Filter Tags */
.filter-tags {
  width: 100%;
}

.active-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.filter-tag {
  display: inline-block;
  background: rgba(99, 102, 241, 0.15);
  border: 1px solid var(--primary);
  color: var(--primary-light);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 500;
  animation: slideIn 0.3s ease-out;
}

/* No Results Message */
.no-results-container {
  grid-column: 1 / -1;
  padding: var(--spacing-xl);
}

.no-results-content {
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-md);
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, rgba(245, 158, 11, 0.05) 100%);
  border-radius: var(--radius-lg);
  border: 2px dashed var(--border-color);
}

.no-results-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
  display: inline-block;
  animation: pulse 2s ease-in-out infinite;
}

.no-results-content h3 {
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
  font-size: 1.5rem;
}

.no-results-content p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
}

.no-results-content .btn {
  display: inline-block;
}

/* Smooth Animations */
@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.grid.grid-3 {
  animation: slideInUp 0.3s ease-out;
}

/* Responsive Filters */
@media (max-width: 768px) {
  .search-filter-section {
    padding: var(--spacing-sm);
  }

  .filters-container {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }

  .search-input {
    font-size: 16px;
  }

  .results-info-bar {
    flex-direction: column;
    align-items: flex-start;
  }

  .active-filters {
    justify-content: flex-start;
  }

  .filter-tag {
    font-size: 0.8rem;
    padding: 0.4rem 0.6rem;
  }

  .no-results-content {
    padding: var(--spacing-lg) var(--spacing-sm);
  }

  .no-results-icon {
    font-size: 2rem;
  }

  .no-results-content h3 {
    font-size: 1.25rem;
  }
}

/* Practice Mode Styles */
.practice-games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0;
}

.practice-game-card {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: all 0.3s;
  box-shadow: var(--shadow);
}

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

.practice-game-header {
  padding: var(--spacing-lg);
  color: white;
  text-align: center;
  position: relative;
}

.practice-game-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-sm);
}

.practice-game-header h3 {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 700;
}

.practice-game-body {
  padding: var(--spacing-md);
}

.practice-game-body p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: var(--spacing-md);
}

.practice-best-score {
  background: var(--bg-tertiary);
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
  text-align: center;
  margin-bottom: var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.score-label {
  color: var(--text-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  font-weight: 600;
}

.score-value {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--primary-light);
}

.practice-badge {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-md);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-left: var(--spacing-sm);
}

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

/* Utility Classes */
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.p-1 { padding: var(--spacing-sm); }
.p-2 { padding: var(--spacing-md); }
.hidden { display: none; }
.flex { display: flex; }
.justify-between { justify-content: space-between; }
.items-center { align-items: center; }
.gap-1 { gap: var(--spacing-sm); }

/* FAQ/Help Center Styles */
.faq-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.faq-header h1 {
  font-size: 2.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-sm);
}

.faq-search-container {
  margin: var(--spacing-lg) 0;
}

.faq-search-container input {
  padding: 1rem;
  font-size: 1.05rem;
  border: 2px solid var(--border-color);
  background: var(--bg-secondary);
  color: var(--text-primary);
  border-radius: var(--radius-lg);
  transition: all 0.3s;
}

.faq-search-container input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
  background: rgba(51, 65, 85, 0.8);
}

.faq-categories {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  margin: var(--spacing-lg) 0;
}

.faq-category {
  animation: slideInUp 0.3s ease-out;
}

.faq-category-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  padding: var(--spacing-md);
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(245, 158, 11, 0.1) 100%);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
}

.faq-items {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-sm);
}

.faq-item {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.3s;
}

.faq-item:hover {
  border-color: var(--primary);
  box-shadow: 0 0 0 1px var(--primary), var(--shadow);
}

.faq-question {
  width: 100%;
  padding: var(--spacing-md);
  background: var(--bg-secondary);
  border: none;
  color: var(--text-primary);
  font-size: 1.05rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all 0.3s;
  user-select: none;
}

.faq-question:hover {
  background: var(--bg-tertiary);
  color: var(--primary-light);
}

.faq-question.active {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.15) 0%, rgba(99, 102, 241, 0.05) 100%);
  color: var(--primary-light);
  border-bottom: 2px solid var(--primary);
}

.faq-toggle {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary);
  transition: transform 0.3s;
  min-width: 30px;
  text-align: right;
}

.faq-question.active .faq-toggle {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
  background: var(--bg-secondary);
}

.faq-answer.active {
  max-height: 1000px;
  padding: var(--spacing-md);
  padding-top: 0;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, transparent 100%);
}

.faq-answer p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin: 0;
}

.faq-no-results {
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-lg);
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, rgba(245, 158, 11, 0.05) 100%);
  border-radius: var(--radius-lg);
  border: 2px dashed var(--border-color);
}

.faq-no-results p {
  color: var(--text-muted);
}

.faq-footer {
  margin-top: var(--spacing-xl);
}

.faq-footer .card {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(245, 158, 11, 0.1) 100%);
  border: 1px solid var(--primary);
}

.faq-footer .btn {
  transition: all 0.3s;
}

.faq-footer .btn-primary:hover,
.faq-footer .btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* FAQ Responsive */
@media (max-width: 768px) {
  .faq-header h1 {
    font-size: 1.75rem;
  }

  .faq-category-title {
    font-size: 1.25rem;
  }

  .faq-question {
    padding: 1rem;
    font-size: 1rem;
  }

  .faq-answer {
    max-height: 0;
  }

  .faq-answer.active {
    max-height: 1200px;
  }

  .faq-footer .flex.gap-1 {
    flex-direction: column;
  }

  .faq-footer .btn {
    width: 100%;
  }
}

/* Contact Form Styles */
.contact-form {
  display: flex;
  flex-direction: column;
}

.error-message {
  display: block;
  color: var(--danger);
  font-size: 0.875rem;
  margin-top: 0.25rem;
  font-weight: 500;
}

.contact-form textarea.form-input {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--text-primary);
}

/* Footer Links */
.footer-links {
  text-align: center;
  margin-top: var(--spacing-md);
  font-size: 0.95rem;
}

.footer-links a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--primary-light);
  text-decoration: underline;
}

/* Theme Toggle Button */
.theme-toggle {
  background: var(--bg-tertiary);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 0.5rem 0.75rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.3s;
  color: var(--text-primary);
  font-size: 1.25rem;
  position: relative;
  overflow: hidden;
}

.theme-toggle:hover {
  background: var(--primary);
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.theme-toggle-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  transition: transform 0.5s ease;
}

.theme-toggle:hover .theme-toggle-icon {
  transform: rotate(180deg);
}

.theme-toggle-tooltip {
  position: absolute;
  bottom: -40px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-md);
  font-size: 0.75rem;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow);
  z-index: 1001;
}

.theme-toggle:hover .theme-toggle-tooltip {
  opacity: 1;
}

/* Activity Feed Styles */
.activity-feed-container {
  max-width: 800px;
  margin: 0 auto;
}

.feed-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: var(--spacing-lg);
  background: var(--bg-secondary);
  padding: 0.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
}

.feed-tab {
  flex: 1;
  padding: 0.75rem 1rem;
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.feed-tab:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.feed-tab.active {
  background: var(--primary);
  color: white;
}

.activity-filters {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
  flex-wrap: wrap;
}

.activity-filter-btn {
  padding: 0.5rem 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
  font-size: 0.875rem;
  font-weight: 500;
}

.activity-filter-btn:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

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

.activity-feed {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.activity-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  transition: all 0.3s;
  animation: fadeIn 0.5s ease-in;
}

.activity-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow);
}

.activity-header {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.activity-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.25rem;
  flex-shrink: 0;
  color: white;
}

.activity-content {
  flex: 1;
}

.activity-username {
  font-weight: 700;
  color: var(--text-primary);
  margin-right: 0.5rem;
}

.activity-message {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
  line-height: 1.5;
}

.activity-icon {
  font-size: 1.5rem;
  margin-right: 0.5rem;
}

.activity-timestamp {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: var(--spacing-sm);
}

.activity-metadata {
  background: var(--bg-tertiary);
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
  margin-top: var(--spacing-sm);
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.activity-actions {
  display: flex;
  gap: var(--spacing-md);
  padding-top: var(--spacing-sm);
  border-top: 1px solid var(--border-color);
  margin-top: var(--spacing-sm);
}

.activity-action {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
  font-size: 0.875rem;
}

.activity-action:hover {
  color: var(--primary);
  background: var(--bg-tertiary);
}

.activity-action.liked {
  color: var(--danger);
}

.activity-action-count {
  font-weight: 600;
}

.activity-comments-section {
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--border-color);
}

.activity-comments {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.activity-comment {
  background: var(--bg-tertiary);
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
}

.comment-author {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.875rem;
}

.comment-text {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

.comment-time {
  color: var(--text-muted);
  font-size: 0.75rem;
  margin-top: 0.25rem;
}

.comment-form {
  display: flex;
  gap: var(--spacing-sm);
}

.comment-input {
  flex: 1;
  padding: 0.5rem 0.75rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.875rem;
}

.comment-input:focus {
  outline: none;
  border-color: var(--primary);
}

.comment-submit {
  padding: 0.5rem 1rem;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-weight: 600;
  font-size: 0.875rem;
  transition: all 0.2s;
}

.comment-submit:hover {
  background: var(--primary-dark);
}

.activity-empty {
  text-align: center;
  padding: var(--spacing-xl);
  color: var(--text-muted);
}

.activity-empty-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

.load-more-activities {
  width: 100%;
  padding: 0.75rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.load-more-activities:hover {
  background: var(--bg-tertiary);
  border-color: var(--primary);
}

/* Activity Type Badges */
.activity-badge {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-left: 0.5rem;
}

.badge-achievement {
  background: rgba(251, 191, 36, 0.2);
  color: #fbbf24;
}

.badge-tournament {
  background: rgba(99, 102, 241, 0.2);
  color: var(--primary-light);
}

.badge-highscore {
  background: rgba(16, 185, 129, 0.2);
  color: var(--success);
}

.badge-levelup {
  background: rgba(245, 158, 11, 0.2);
  color: var(--accent);
}

.badge-challenge {
  background: rgba(239, 68, 68, 0.2);
  color: var(--danger);
}

/* Responsive Activity Feed */
@media (max-width: 768px) {
  .activity-feed-container {
    padding: 0 var(--spacing-sm);
  }

  .feed-tabs {
    flex-direction: column;
  }

  .activity-header {
    flex-direction: column;
  }

  .activity-avatar {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }

  .activity-actions {
    flex-wrap: wrap;
  }
}

/* ========================================
   WebSocket Real-Time Features
   ======================================== */

/* Connection Status Indicator */
.connection-status {
  position: fixed;
  top: 20px;
  right: 20px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  z-index: 1000;
  box-shadow: 0 0 0 2px var(--bg-primary);
  transition: all 0.3s ease;
}

.connection-status.connected {
  background-color: var(--success);
  box-shadow: 0 0 0 2px var(--bg-primary), 0 0 8px var(--success);
}

.connection-status.disconnected {
  background-color: var(--text-muted);
}

.connection-status.error {
  background-color: var(--danger);
  box-shadow: 0 0 0 2px var(--bg-primary), 0 0 8px var(--danger);
  animation: pulse-error 1.5s infinite;
}

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

/* Notification Bell */
.notification-bell {
  position: relative;
  display: inline-block;
  cursor: pointer;
  padding: 0.5rem;
  font-size: 1.5rem;
}

.notification-badge {
  position: absolute;
  top: 0;
  right: 0;
  background: var(--danger);
  color: white;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 10px;
  min-width: 18px;
  text-align: center;
  display: none;
}

/* Toast Notifications */
.toast {
  position: fixed;
  top: 80px;
  right: 20px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1rem 1.5rem;
  box-shadow: var(--shadow-lg);
  z-index: 9999;
  max-width: 350px;
  animation: slideInRight 0.3s ease;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.toast.success {
  border-left: 4px solid var(--success);
}

.toast.error {
  border-left: 4px solid var(--danger);
}

.toast.info {
  border-left: 4px solid var(--info);
}

.toast.warning {
  border-left: 4px solid var(--warning);
}

@keyframes slideInRight {
  from {
    transform: translateX(400px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* Tournament Chat Box */
.tournament-chat {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-top: 2rem;
  height: 500px;
  display: flex;
  flex-direction: column;
}

.chat-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color);
}

.online-count-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--success);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 600;
}

.online-count-badge::before {
  content: '';
  width: 8px;
  height: 8px;
  background: white;
  border-radius: 50%;
  animation: pulse-online 2s infinite;
}

@keyframes pulse-online {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

#chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  background: var(--bg-primary);
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
  scroll-behavior: smooth;
}

.chat-message {
  margin-bottom: 1rem;
  padding: 0.75rem;
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  animation: fadeIn 0.3s ease;
}

.chat-message.own-message {
  background: var(--primary-light);
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
  color: white;
  margin-left: 20%;
}

.message-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
}

.message-username {
  font-weight: 600;
  color: var(--primary);
}

.own-message .message-username {
  color: white;
}

.message-time {
  color: var(--text-muted);
  font-size: 0.75rem;
}

.own-message .message-time {
  color: rgba(255, 255, 255, 0.8);
}

.message-content {
  color: var(--text-primary);
  word-wrap: break-word;
}

.own-message .message-content {
  color: white;
}

#typing-indicator {
  display: none;
  font-size: 0.875rem;
  color: var(--text-muted);
  font-style: italic;
  padding: 0.5rem;
  animation: fadeIn 0.3s ease;
}

.chat-input-container {
  display: flex;
  gap: 0.75rem;
}

.chat-input {
  flex: 1;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-family: inherit;
  background: var(--bg-primary);
  color: var(--text-primary);
  transition: border-color 0.2s ease;
}

.chat-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.chat-send-btn {
  padding: 0.75rem 1.5rem;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.chat-send-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

.chat-send-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* Live Leaderboard Updates */
.leaderboard-item.new-entry {
  animation: highlightNew 1s ease;
}

@keyframes highlightNew {
  0%, 100% { background: transparent; }
  50% { background: rgba(99, 102, 241, 0.1); }
}

.leaderboard-item.score-updated {
  animation: scoreUpdate 0.5s ease;
}

@keyframes scoreUpdate {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.02); }
}

/* User Online Status */
.status-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  margin-right: 0.5rem;
}

.status-dot.online {
  background: var(--success);
  box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.2);
  animation: pulse-online 2s infinite;
}

.status-dot.offline {
  background: var(--text-muted);
}

/* Notification Panel */
.notification-panel {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 0.5rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 350px;
  max-height: 400px;
  overflow-y: auto;
  z-index: 1000;
  display: none;
}

.notification-panel.show {
  display: block;
  animation: fadeIn 0.3s ease;
}

.notification-item {
  padding: 1rem;
  border-bottom: 1px solid var(--border-color);
  cursor: pointer;
  transition: background 0.2s ease;
}

.notification-item:hover {
  background: var(--bg-secondary);
}

.notification-item:last-child {
  border-bottom: none;
}

.notification-type {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  margin-bottom: 0.25rem;
}

.notification-message {
  color: var(--text-primary);
  font-size: 0.875rem;
  margin-bottom: 0.25rem;
}

.notification-time {
  font-size: 0.75rem;
  color: var(--text-muted);
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* Responsive Adjustments */
@media (max-width: 768px) {
  .connection-status {
    top: 10px;
    right: 10px;
  }

  .toast {
    top: 70px;
    right: 10px;
    left: 10px;
    max-width: none;
  }

  .tournament-chat {
    height: 400px;
  }

  .notification-panel {
    width: calc(100vw - 20px);
    right: -10px;
  }

  .chat-message.own-message {
    margin-left: 10%;
  }
}

@keyframes slideOutRight {
  from {
    transform: translateX(0);
    opacity: 1;
  }
  to {
    transform: translateX(400px);
    opacity: 0;
  }
}

.toast-icon {
  font-size: 1.25rem;
  font-weight: 700;
}

.toast-message {
  flex: 1;
  color: var(--text-primary);
}

/* Achievement Styles */
.achievement-category {
  margin-bottom: 2rem;
}

.achievement-category-title {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--primary);
  border-bottom: 2px solid var(--primary);
  padding-bottom: 0.5rem;
}

.achievements-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 1rem;
}

.achievement-card {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  padding: 1rem;
  display: flex;
  gap: 1rem;
  transition: all 0.3s;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.achievement-card.unlocked {
  background: rgba(245, 158, 11, 0.1);
  border-color: rgba(245, 158, 11, 0.3);
}

.achievement-card.locked {
  opacity: 0.7;
}

.achievement-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

.achievement-icon {
  font-size: 3rem;
  line-height: 1;
  min-width: 60px;
  text-align: center;
  transition: filter 0.3s;
}

.achievement-icon.grayscale {
  filter: grayscale(100%) opacity(0.5);
}

.achievement-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.achievement-name {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.achievement-description {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
}

.achievement-meta {
  display: flex;
  gap: 1rem;
  font-size: 0.75rem;
  flex-wrap: wrap;
}

.achievement-rarity {
  font-weight: 600;
}

.achievement-points,
.achievement-reward {
  color: rgba(255, 255, 255, 0.6);
}

.achievement-progress {
  margin-top: 0.5rem;
}

.progress-bar {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  height: 6px;
  overflow: hidden;
  margin-bottom: 0.25rem;
}

.progress-fill {
  background: linear-gradient(90deg, #f59e0b, #f97316);
  height: 100%;
  transition: width 0.3s;
}

.progress-text {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.6);
}

.achievement-unlocked {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--success);
  font-size: 0.875rem;
  font-weight: 500;
}

.unlocked-date {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.75rem;
  font-weight: 400;
}

.achievement-filters {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.achievement-filter {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  padding: 0.5rem 1rem;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
}

.achievement-filter:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.achievement-filter.active {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--bg-dark);
}

@media (max-width: 768px) {
  .achievements-grid {
    grid-template-columns: 1fr;
  }

  .achievement-card {
    flex-direction: column;
    text-align: center;
  }

  .achievement-icon {
    min-width: auto;
  }

  .achievement-meta {
    justify-content: center;
  }

  .achievement-filters {
    justify-content: center;
  }
}

/* Cart Badge */
.cart-badge {
  position: absolute;
  top: -8px;
  right: -8px;
  background: var(--danger);
  color: white;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.125rem 0.375rem;
  border-radius: 999px;
  min-width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  animation: cartBadgePulse 2s ease-in-out infinite;
}

@keyframes cartBadgePulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
}

/* Custom Scrollbar - Gaming aesthetic */
[data-theme="dark"] ::-webkit-scrollbar {
  width: 12px;
  height: 12px;
}

[data-theme="dark"] ::-webkit-scrollbar-track {
  background: var(--bg-primary);
  border-radius: 10px;
}

[data-theme="dark"] ::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  border-radius: 10px;
  border: 2px solid var(--bg-primary);
}

[data-theme="dark"] ::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--accent) 100%);
  box-shadow: var(--glow-primary);
}

/* Enhanced Loading Spinner */
.spinner {
  width: 50px;
  height: 50px;
  border: 4px solid var(--border-color);
  border-top: 4px solid var(--primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 3rem auto;
}

[data-theme="dark"] .spinner {
  border: 4px solid rgba(139, 92, 246, 0.2);
  border-top: 4px solid var(--primary);
  box-shadow: var(--glow-primary);
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Loading Dots Animation */
.loading-dots {
  display: inline-flex;
  gap: 0.5rem;
}

.loading-dots span {
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
  animation: bounce 1.4s infinite ease-in-out both;
}

.loading-dots span:nth-child(1) { animation-delay: -0.32s; }
.loading-dots span:nth-child(2) { animation-delay: -0.16s; }

@keyframes bounce {
  0%, 80%, 100% { transform: scale(0); opacity: 0.5; }
  40% { transform: scale(1); opacity: 1; }
}

/* Enhanced Form Inputs */
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
textarea,
select {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 1rem;
  font-family: inherit;
  transition: all 0.3s ease;
}

[data-theme="dark"] input[type="text"],
[data-theme="dark"] input[type="email"],
[data-theme="dark"] input[type="password"],
[data-theme="dark"] input[type="number"],
[data-theme="dark"] textarea,
[data-theme="dark"] select {
  background: rgba(31, 41, 55, 0.5);
  border: 2px solid rgba(139, 92, 246, 0.2);
  backdrop-filter: blur(10px);
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

[data-theme="dark"] input:focus,
[data-theme="dark"] textarea:focus,
[data-theme="dark"] select:focus {
  border-color: var(--primary-light);
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.2), var(--glow-primary);
}

/* Badge / Tag Components */
.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
}

.badge-accent {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  color: white;
}

.badge-success {
  background: var(--success);
  color: white;
}

.badge-danger {
  background: var(--danger);
  color: white;
}

[data-theme="dark"] .badge {
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

/* Tournament/Game Cards Enhancement */
.game-card,
.tournament-card {
  position: relative;
  overflow: hidden;
}

.game-card::after,
.tournament-card::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  bottom: -50%;
  left: -50%;
  background: linear-gradient(
    45deg,
    transparent 30%,
    rgba(255, 255, 255, 0.05) 50%,
    transparent 70%
  );
  transform: translateX(-100%);
  transition: transform 0.6s;
}

.game-card:hover::after,
.tournament-card:hover::after {
  transform: translateX(100%);
}

/* Leaderboard Rank Badges */
.rank-1 {
  background: linear-gradient(135deg, #ffd700 0%, #ffed4e 100%);
  color: #000;
  font-weight: 700;
  box-shadow: 0 4px 20px rgba(255, 215, 0, 0.5);
}

.rank-2 {
  background: linear-gradient(135deg, #c0c0c0 0%, #e8e8e8 100%);
  color: #000;
  font-weight: 700;
  box-shadow: 0 4px 20px rgba(192, 192, 192, 0.5);
}

.rank-3 {
  background: linear-gradient(135deg, #cd7f32 0%, #e89b6d 100%);
  color: #fff;
  font-weight: 700;
  box-shadow: 0 4px 20px rgba(205, 127, 50, 0.5);
}

/* Pulse Animation for Live Indicators */
@keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.7;
    transform: scale(1.05);
  }
}

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

/* Glow effect for important elements */
.glow {
  box-shadow: var(--glow-primary);
  animation: glowPulse 2s ease-in-out infinite;
}

@keyframes glowPulse {
  0%, 100% {
    box-shadow: var(--glow-primary);
  }
  50% {
    box-shadow: 0 0 30px rgba(139, 92, 246, 0.8);
  }
}

/* Responsive Design Enhancements */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2rem;
  }

  .btn {
    padding: 0.75rem 1.25rem;
  }

  .card {
    padding: var(--spacing-sm);
  }
}

/* Mobile Menu Enhancement */
.mobile-menu-btn {
  display: none;
  background: none;
  border: 2px solid var(--border-color);
  color: var(--text-primary);
  font-size: 1.5rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.3s;
}

[data-theme="dark"] .mobile-menu-btn {
  border-color: rgba(139, 92, 246, 0.3);
}

.mobile-menu-btn:hover {
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.1);
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: block;
  }
}

/* Premium Features Highlight */
.premium-badge {
  background: linear-gradient(135deg, #ffd700 0%, #ffed4e 100%);
  color: #000;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  box-shadow: 0 4px 15px rgba(255, 215, 0, 0.4);
  animation: shimmer 3s linear infinite;
}

/* Status Indicators */
.status-online {
  width: 10px;
  height: 10px;
  background: #10b981;
  border-radius: 50%;
  display: inline-block;
  margin-right: 0.5rem;
  box-shadow: 0 0 10px #10b981;
  animation: pulse 2s ease-in-out infinite;
}

.status-offline {
  width: 10px;
  height: 10px;
  background: #6b7280;
  border-radius: 50%;
  display: inline-block;
  margin-right: 0.5rem;
}

/* Smooth Page Transitions */
.page-transition {
  animation: fadeIn 0.4s ease-in-out;
}

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