/* ==========================================================================
   QC (Quiz & Challenge) Design System
   Modern Neon & Glassmorphism Game Show Aesthetic
   ========================================================================== */

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

:root {
  /* Color Palette */
  --bg-dark: #0a0c16;
  --bg-card: rgba(22, 27, 46, 0.85);
  --bg-card-hover: rgba(32, 40, 68, 0.95);
  --bg-card-glow: rgba(59, 130, 246, 0.15);
  
  --primary-gold: #f59e0b;
  --primary-gold-glow: rgba(245, 158, 11, 0.35);
  --electric-blue: #38bdf8;
  --electric-blue-glow: rgba(56, 189, 248, 0.35);
  --neon-magenta: #ec4899;
  --neon-magenta-glow: rgba(236, 72, 153, 0.35);
  --vibrant-green: #10b981;
  --vibrant-green-glow: rgba(16, 185, 129, 0.35);
  --danger-red: #ef4444;
  --danger-red-glow: rgba(239, 68, 68, 0.35);
  --cyber-purple: #8b5cf6;
  --cyber-purple-glow: rgba(139, 92, 246, 0.35);

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(56, 189, 248, 0.4);

  --font-main: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.7), 0 0 20px -5px var(--bg-card-glow);
  --shadow-neon-blue: 0 0 25px rgba(56, 189, 248, 0.45);
  --shadow-neon-gold: 0 0 25px rgba(245, 158, 11, 0.45);
  --shadow-neon-magenta: 0 0 25px rgba(236, 72, 153, 0.45);

  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-bounce: 0.45s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

body {
  font-family: var(--font-main);
  background-color: var(--bg-dark);
  color: var(--text-main);
  min-height: 100vh;
  line-height: 1.5;
  overflow-x: hidden;
  position: relative;
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(59, 130, 246, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 85% 85%, rgba(139, 92, 246, 0.12) 0%, transparent 45%),
    radial-gradient(circle at 50% 50%, rgba(236, 72, 153, 0.05) 0%, transparent 60%);
  background-attachment: fixed;
}

/* Glassmorphism utility */
.glass {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
}

/* Button styles */
.btn {
  font-family: var(--font-main);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.03em;
  padding: 0.75rem 1.4rem;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: all var(--transition-normal);
  text-decoration: none;
  color: white;
  user-select: none;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background: linear-gradient(135deg, #38bdf8 0%, #2563eb 100%);
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.4);
}

.btn-primary:hover {
  box-shadow: 0 6px 20px rgba(56, 189, 248, 0.6);
}

.btn-gold {
  background: linear-gradient(135deg, #fbbf24 0%, #d97706 100%);
  color: #1e1b4b;
  box-shadow: 0 4px 15px rgba(217, 119, 6, 0.4);
}

.btn-gold:hover {
  box-shadow: 0 6px 22px rgba(251, 191, 36, 0.6);
}

.btn-danger {
  background: linear-gradient(135deg, #f87171 0%, #dc2626 100%);
  box-shadow: 0 4px 15px rgba(220, 38, 38, 0.35);
}

.btn-success {
  background: linear-gradient(135deg, #34d399 0%, #059669 100%);
  box-shadow: 0 4px 15px rgba(5, 150, 105, 0.35);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--text-main);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.3);
}

.btn-sm {
  padding: 0.4rem 0.8rem;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.25rem;
  border-radius: var(--radius-lg);
}

/* Badge styles */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.6rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-live {
  background: rgba(16, 185, 129, 0.2);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.4);
}

.badge-live::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: #10b981;
  box-shadow: 0 0 8px #10b981;
  animation: pulse-dot 1.5s infinite;
}

.badge-offline {
  background: rgba(148, 163, 184, 0.15);
  color: var(--text-muted);
  border: 1px solid rgba(148, 163, 184, 0.25);
}

.badge-type {
  background: rgba(56, 189, 248, 0.15);
  color: var(--electric-blue);
  border: 1px solid rgba(56, 189, 248, 0.3);
}

@keyframes pulse-dot {
  0% { transform: scale(0.9); opacity: 0.7; }
  50% { transform: scale(1.2); opacity: 1; }
  100% { transform: scale(0.9); opacity: 0.7; }
}

/* Keyframes */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes popIn {
  0% { transform: scale(0.85); opacity: 0; }
  70% { transform: scale(1.05); }
  100% { transform: scale(1); opacity: 1; }
}

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

/* Accessibility & Screenreader utility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}