/* ═══════════════════════════════════════════════════════════════════════════
   GAME SHOW QUIZ — Design System
   ═══════════════════════════════════════════════════════════════════════════ */

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

/* ─── CSS Reset ──────────────────────────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ─── Design Tokens ──────────────────────────────────────────────────────── */
:root {
  /* Colors — Backgrounds */
  --bg-primary: #0a0a1a;
  --bg-secondary: #12122a;
  --surface: rgba(255, 255, 255, 0.05);
  --surface-border: rgba(255, 255, 255, 0.1);
  --surface-hover: rgba(255, 255, 255, 0.08);

  /* Colors — Accents */
  --gold: #ffd700;
  --gold-dim: rgba(255, 215, 0, 0.3);
  --electric-blue: #00d4ff;
  --electric-blue-dim: rgba(0, 212, 255, 0.3);
  --hot-pink: #ff2d7c;
  --hot-pink-dim: rgba(255, 45, 124, 0.3);
  --success: #00ff88;
  --success-dim: rgba(0, 255, 136, 0.3);
  --danger: #ff4757;
  --danger-dim: rgba(255, 71, 87, 0.3);

  /* Colors — Text */
  --text-primary: rgba(255, 255, 255, 0.95);
  --text-secondary: rgba(255, 255, 255, 0.6);
  --text-muted: rgba(255, 255, 255, 0.35);

  /* Typography */
  --font-family: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-weight-regular: 400;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;
  --font-weight-black: 900;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 50%;

  /* Shadows & Glows */
  --neon-gold: 0 0 20px var(--gold), 0 0 40px var(--gold-dim);
  --neon-blue: 0 0 20px var(--electric-blue), 0 0 40px var(--electric-blue-dim);
  --neon-pink: 0 0 20px var(--hot-pink), 0 0 40px var(--hot-pink-dim);
  --neon-green: 0 0 20px var(--success), 0 0 40px var(--success-dim);
  --neon-red: 0 0 20px var(--danger), 0 0 40px var(--danger-dim);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 16px 64px rgba(0, 0, 0, 0.6);

  /* Transitions */
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);

  /* Blur */
  --blur: blur(20px);
  --blur-heavy: blur(40px);
}

/* ─── Base Styles ────────────────────────────────────────────────────────── */
html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-family);
  font-weight: var(--font-weight-regular);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
  overflow-x: hidden;
}

/* Ambient background gradient */
body::before {
  content: '';
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(0, 212, 255, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(255, 45, 124, 0.05) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 80%, rgba(255, 215, 0, 0.04) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

body > * {
  position: relative;
  z-index: 1;
}

a {
  color: var(--electric-blue);
  text-decoration: none;
  transition: var(--transition);
}

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

/* ─── Typography ─────────────────────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-bold);
  line-height: 1.2;
}

h1 { font-size: 2.5rem; font-weight: var(--font-weight-black); }
h2 { font-size: 2rem; font-weight: var(--font-weight-extrabold); }
h3 { font-size: 1.5rem; font-weight: var(--font-weight-bold); }
h4 { font-size: 1.25rem; }
h5 { font-size: 1rem; }

.text-gold { color: var(--gold); }
.text-blue { color: var(--electric-blue); }
.text-pink { color: var(--hot-pink); }
.text-green { color: var(--success); }
.text-red { color: var(--danger); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }

/* ─── Glassmorphism Panel ────────────────────────────────────────────────── */
.glass-panel {
  background: var(--surface);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: var(--transition);
}

.glass-panel:hover {
  background: var(--surface-hover);
  border-color: rgba(255, 255, 255, 0.15);
}

.glass-panel--static:hover {
  background: var(--surface);
  border-color: var(--surface-border);
}

/* ─── Buttons ────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 12px 24px;
  font-family: var(--font-family);
  font-size: 0.95rem;
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  background: var(--surface);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  user-select: none;
  white-space: nowrap;
  text-decoration: none;
  line-height: 1;
}

.btn:hover {
  background: var(--surface-hover);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn:active {
  transform: translateY(0) scale(0.98);
  box-shadow: none;
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* Primary — Gold */
.btn-primary {
  background: linear-gradient(135deg, var(--gold), #ffaa00);
  color: #0a0a1a;
  border-color: var(--gold);
  font-weight: var(--font-weight-bold);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #ffe033, var(--gold));
  border-color: #ffe033;
  box-shadow: var(--neon-gold);
  color: #0a0a1a;
}

/* Danger — Red/Pink */
.btn-danger {
  background: linear-gradient(135deg, var(--danger), var(--hot-pink));
  color: #fff;
  border-color: var(--danger);
  font-weight: var(--font-weight-bold);
}

.btn-danger:hover {
  background: linear-gradient(135deg, #ff6b7a, var(--danger));
  border-color: #ff6b7a;
  box-shadow: var(--neon-red);
}

/* Success — Green */
.btn-success {
  background: linear-gradient(135deg, var(--success), #00cc6a);
  color: #0a0a1a;
  border-color: var(--success);
  font-weight: var(--font-weight-bold);
}

.btn-success:hover {
  background: linear-gradient(135deg, #33ffaa, var(--success));
  border-color: #33ffaa;
  box-shadow: var(--neon-green);
  color: #0a0a1a;
}

/* Blue */
.btn-blue {
  background: linear-gradient(135deg, var(--electric-blue), #0099cc);
  color: #0a0a1a;
  border-color: var(--electric-blue);
  font-weight: var(--font-weight-bold);
}

.btn-blue:hover {
  background: linear-gradient(135deg, #33e0ff, var(--electric-blue));
  border-color: #33e0ff;
  box-shadow: var(--neon-blue);
  color: #0a0a1a;
}

/* Button Sizes */
.btn-sm {
  padding: 8px 16px;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 16px 32px;
  font-size: 1.1rem;
  border-radius: var(--radius-lg);
}

.btn-xl {
  padding: 20px 40px;
  font-size: 1.25rem;
  font-weight: var(--font-weight-extrabold);
  border-radius: var(--radius-lg);
}

.btn-icon {
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: var(--radius-full);
  font-size: 1.2rem;
}

/* ─── Neon Text ──────────────────────────────────────────────────────────── */
.neon-text {
  text-shadow: var(--neon-blue);
}

.neon-text--gold {
  text-shadow: var(--neon-gold);
  color: var(--gold);
}

.neon-text--pink {
  text-shadow: var(--neon-pink);
  color: var(--hot-pink);
}

.neon-text--green {
  text-shadow: var(--neon-green);
  color: var(--success);
}

/* ─── Animations ─────────────────────────────────────────────────────────── */

/* Fade In */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

/* Slide Up */
@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.slide-up {
  animation: slideUp 0.5s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

/* Pulse */
@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

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

/* Glow Pulse */
@keyframes glowPulse {
  0%, 100% { box-shadow: 0 0 5px rgba(255, 215, 0, 0.3); }
  50% { box-shadow: 0 0 25px rgba(255, 215, 0, 0.6), 0 0 50px rgba(255, 215, 0, 0.2); }
}

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

/* Score Pop */
@keyframes scorePop {
  0% { transform: scale(1); }
  30% { transform: scale(1.3); }
  60% { transform: scale(0.95); }
  100% { transform: scale(1); }
}

.score-pop {
  animation: scorePop 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Shake */
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  10%, 50%, 90% { transform: translateX(-4px); }
  30%, 70% { transform: translateX(4px); }
}

.shake {
  animation: shake 0.5s ease-in-out;
}

/* Stagger children */
.stagger-children > * {
  opacity: 0;
  animation: slideUp 0.5s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.stagger-children > *:nth-child(1) { animation-delay: 0.05s; }
.stagger-children > *:nth-child(2) { animation-delay: 0.1s; }
.stagger-children > *:nth-child(3) { animation-delay: 0.15s; }
.stagger-children > *:nth-child(4) { animation-delay: 0.2s; }
.stagger-children > *:nth-child(5) { animation-delay: 0.25s; }
.stagger-children > *:nth-child(6) { animation-delay: 0.3s; }
.stagger-children > *:nth-child(7) { animation-delay: 0.35s; }
.stagger-children > *:nth-child(8) { animation-delay: 0.4s; }

/* ─── Connection Status ──────────────────────────────────────────────────── */
.connection-status {
  position: fixed;
  top: var(--space-md);
  right: var(--space-md);
  padding: 8px 16px;
  border-radius: var(--radius-2xl);
  font-size: 0.8rem;
  font-weight: var(--font-weight-semibold);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--surface-border);
  z-index: 9999;
  transition: var(--transition);
  user-select: none;
}

.connection-status.connected {
  background: rgba(0, 255, 136, 0.15);
  border-color: rgba(0, 255, 136, 0.3);
  color: var(--success);
}

.connection-status.disconnected {
  background: rgba(255, 215, 0, 0.15);
  border-color: rgba(255, 215, 0, 0.3);
  color: var(--gold);
  animation: pulse 1.5s ease-in-out infinite;
}

.connection-status.error {
  background: rgba(255, 71, 87, 0.15);
  border-color: rgba(255, 71, 87, 0.3);
  color: var(--danger);
}

/* ─── Scrollbar ──────────────────────────────────────────────────────────── */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.25);
}

/* Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.15) transparent;
}

/* ─── Form Elements ──────────────────────────────────────────────────────── */
input[type="text"],
input[type="number"],
input[type="email"],
select,
textarea {
  font-family: var(--font-family);
  font-size: 1rem;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  outline: none;
  transition: var(--transition);
  width: 100%;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--electric-blue);
  box-shadow: 0 0 0 3px var(--electric-blue-dim);
}

input::placeholder,
textarea::placeholder {
  color: var(--text-muted);
}

label {
  display: block;
  font-size: 0.85rem;
  font-weight: var(--font-weight-semibold);
  color: var(--text-secondary);
  margin-bottom: var(--space-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ─── Layout Utilities ───────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.container--narrow {
  max-width: 800px;
}

.container--wide {
  max-width: 1600px;
}

.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

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

.items-center {
  align-items: center;
}

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

.justify-between {
  justify-content: space-between;
}

.gap-xs { gap: var(--space-xs); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }

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

.w-full { width: 100%; }
.h-full { height: 100%; }
.min-h-screen { min-height: 100vh; }

.mx-auto { margin-left: auto; margin-right: auto; }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

.p-sm { padding: var(--space-sm); }
.p-md { padding: var(--space-md); }
.p-lg { padding: var(--space-lg); }
.p-xl { padding: var(--space-xl); }

.hidden { display: none !important; }
.invisible { visibility: hidden; }
.overflow-hidden { overflow: hidden; }

/* ─── Grid ───────────────────────────────────────────────────────────────── */
.grid {
  display: grid;
  gap: var(--space-lg);
}

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

/* ─── Responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.6rem; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.4rem; }

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

  .glass-panel {
    padding: var(--space-md);
  }

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

  .btn-xl {
    padding: 16px 28px;
    font-size: 1.1rem;
  }

  /* Hide on mobile */
  .hide-mobile { display: none !important; }
}

@media (max-width: 480px) {
  html { font-size: 14px; }

  .btn {
    padding: 10px 18px;
    font-size: 0.9rem;
  }
}

/* ─── Divider ────────────────────────────────────────────────────────────── */
.divider {
  width: 100%;
  height: 1px;
  background: var(--surface-border);
  margin: var(--space-lg) 0;
}

/* ─── Badge ──────────────────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  font-size: 0.75rem;
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-2xl);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge--gold {
  background: var(--gold-dim);
  color: var(--gold);
}

.badge--blue {
  background: var(--electric-blue-dim);
  color: var(--electric-blue);
}

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

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