/* ============================================
   NEOBRUTALISM DESIGN SYSTEM — Quiz Competition
   ============================================ */

/* ---------- Google Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@400;500;600;700&family=Space+Mono:wght@400;700&display=swap');

/* ---------- CSS Custom Properties ---------- */
:root {
  /* Colors — Flat, saturated, neobrutalist */
  --clr-primary: #FFD60A;
  --clr-secondary: #FF6B6B;
  --clr-accent: #4ECDC4;
  --clr-winner: #A8E6CF;
  --clr-purple: #C3A6FF;
  --clr-orange: #FFB347;
  --clr-pink: #FF9FF3;
  --clr-blue: #74B9FF;
  --clr-bg: #FFF8E7;
  --clr-card: #FFFFFF;
  --clr-black: #1A1A2E;
  --clr-dark: #2D2D44;
  --clr-text: #1A1A2E;
  --clr-text-muted: #555;
  --clr-danger: #FF4757;
  --clr-correct: #2ED573;
  --clr-wrong: #FF4757;

  /* Borders */
  --border: 3px solid var(--clr-black);
  --border-thick: 4px solid var(--clr-black);

  /* Shadows — Hard offset, zero blur */
  --shadow: 6px 6px 0px 0px var(--clr-black);
  --shadow-sm: 4px 4px 0px 0px var(--clr-black);
  --shadow-lg: 8px 8px 0px 0px var(--clr-black);
  --shadow-pressed: 2px 2px 0px 0px var(--clr-black);

  /* Typography */
  --font-heading: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'Space Mono', monospace;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  /* Radii */
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;

  /* Transitions */
  --transition: all 0.15s ease;
}

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

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

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
}

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

.text-center { text-align: center; }
.text-mono { font-family: var(--font-mono); }
.text-muted { color: var(--clr-text-muted); }

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

.hidden { display: none !important; }

.w-full { width: 100%; }

/* ---------- Card ---------- */
.card {
  background: var(--clr-card);
  border: var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: var(--space-xl);
}

.card--primary { background: var(--clr-primary); }
.card--secondary { background: var(--clr-secondary); }
.card--accent { background: var(--clr-accent); }
.card--winner { background: var(--clr-winner); }
.card--purple { background: var(--clr-purple); }
.card--orange { background: var(--clr-orange); }
.card--pink { background: var(--clr-pink); }
.card--blue { background: var(--clr-blue); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  padding: var(--space-md) var(--space-xl);
  border: var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  position: relative;
  user-select: none;
}

.btn:active {
  box-shadow: var(--shadow-pressed);
  transform: translate(2px, 2px);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: var(--shadow-sm);
}

.btn--primary {
  background: var(--clr-primary);
  color: var(--clr-black);
}

.btn--secondary {
  background: var(--clr-secondary);
  color: var(--clr-black);
}

.btn--accent {
  background: var(--clr-accent);
  color: var(--clr-black);
}

.btn--dark {
  background: var(--clr-black);
  color: var(--clr-card);
}

.btn--winner {
  background: var(--clr-winner);
  color: var(--clr-black);
}

.btn--danger {
  background: var(--clr-danger);
  color: var(--clr-card);
}

.btn--large {
  font-size: 1.4rem;
  padding: var(--space-lg) var(--space-2xl);
  box-shadow: var(--shadow);
}

.btn--large:active {
  box-shadow: var(--shadow-pressed);
  transform: translate(4px, 4px);
}

.btn--full {
  width: 100%;
}

/* ---------- Input Fields ---------- */
.input-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.input-group label {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.input {
  font-family: var(--font-body);
  font-size: 1.1rem;
  padding: var(--space-md) var(--space-lg);
  border: var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  background: var(--clr-card);
  color: var(--clr-text);
  transition: var(--transition);
  outline: none;
  width: 100%;
}

.input:focus {
  box-shadow: var(--shadow);
  transform: translate(-2px, -2px);
}

.input::placeholder {
  color: #aaa;
}

/* ---------- Badge / Tag ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.85rem;
  padding: var(--space-xs) var(--space-md);
  border: 2px solid var(--clr-black);
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge--correct { background: var(--clr-correct); color: var(--clr-black); }
.badge--wrong { background: var(--clr-wrong); color: white; }
.badge--tabbed { background: var(--clr-orange); color: var(--clr-black); }
.badge--waiting { background: var(--clr-blue); color: var(--clr-black); }
.badge--accent { background: var(--clr-accent); color: var(--clr-black); }

/* ---------- Timer Bar ---------- */
.timer-container {
  width: 100%;
  height: 20px;
  background: var(--clr-card);
  border: var(--border);
  border-radius: 999px;
  overflow: hidden;
  position: relative;
}

.timer-bar {
  height: 100%;
  background: var(--clr-accent);
  border-radius: 999px;
  transition: width 1s linear;
}

.timer-bar.warning {
  background: var(--clr-orange);
}

.timer-bar.danger {
  background: var(--clr-danger);
  animation: pulse-bar 0.5s ease-in-out infinite;
}

.timer-number {
  font-family: var(--font-mono);
  font-size: 3rem;
  font-weight: 700;
  color: var(--clr-black);
  line-height: 1;
}

.timer-number.warning {
  color: var(--clr-orange);
}

.timer-number.danger {
  color: var(--clr-danger);
  animation: pulse-text 0.5s ease-in-out infinite;
}

/* ---------- Room Code Display ---------- */
.room-code {
  font-family: var(--font-mono);
  font-size: 4rem;
  font-weight: 700;
  letter-spacing: 12px;
  padding: var(--space-lg) var(--space-2xl);
  background: var(--clr-primary);
  border: var(--border-thick);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  display: inline-block;
  user-select: all;
}

/* ---------- Participant List ---------- */
.participant-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.participant-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  background: var(--clr-card);
  border: var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  font-weight: 500;
  animation: pop-in 0.3s ease-out;
}

.participant-item .avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 2px solid var(--clr-black);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  flex-shrink: 0;
}

/* Rotate colors for participant avatars */
.participant-item:nth-child(6n+1) .avatar { background: var(--clr-primary); }
.participant-item:nth-child(6n+2) .avatar { background: var(--clr-secondary); }
.participant-item:nth-child(6n+3) .avatar { background: var(--clr-accent); }
.participant-item:nth-child(6n+4) .avatar { background: var(--clr-purple); }
.participant-item:nth-child(6n+5) .avatar { background: var(--clr-orange); }
.participant-item:nth-child(6n+6) .avatar { background: var(--clr-pink); }

/* ---------- Option Cards (Participant) ---------- */
.options-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.option-btn {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.15rem;
  padding: var(--space-lg) var(--space-xl);
  border: var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: var(--transition);
  text-align: left;
  position: relative;
  background: var(--clr-card);
  color: var(--clr-text);
}

.option-btn .option-letter {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid var(--clr-black);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
  flex-shrink: 0;
  background: var(--clr-bg);
}

.option-btn:nth-child(1) { background: #FFF3CD; }
.option-btn:nth-child(2) { background: #D4EDDA; }
.option-btn:nth-child(3) { background: #CCE5FF; }
.option-btn:nth-child(4) { background: #F8D7DA; }

.option-btn:active {
  box-shadow: var(--shadow-pressed);
  transform: translate(4px, 4px);
}

.option-btn.selected {
  box-shadow: var(--shadow-pressed);
  transform: translate(4px, 4px);
  outline: 4px solid var(--clr-black);
}

.option-btn.correct {
  background: var(--clr-correct) !important;
  animation: correct-flash 0.5s ease;
}

.option-btn.wrong {
  background: var(--clr-wrong) !important;
  color: white;
  animation: shake 0.4s ease;
}

.option-btn:disabled {
  cursor: not-allowed;
  opacity: 0.7;
}

/* ---------- Winner Card ---------- */
.winner-card {
  background: var(--clr-primary);
  border: var(--border-thick);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-2xl);
  text-align: center;
  animation: pop-in 0.5s ease-out;
  position: relative;
  overflow: hidden;
}

.winner-card::before {
  content: '🏆';
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 5rem;
  opacity: 0.15;
}

.winner-card .winner-name {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.winner-card .winner-time {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  background: var(--clr-card);
  border: var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  padding: var(--space-sm) var(--space-lg);
  display: inline-block;
}

.winner-card .winner-id {
  font-size: 1rem;
  color: var(--clr-dark);
  margin-top: var(--space-xs);
}

/* ---------- No Winner Card ---------- */
.no-winner-card {
  background: var(--clr-secondary);
  border: var(--border-thick);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-2xl);
  text-align: center;
  animation: shake 0.5s ease;
}

/* ---------- Answer Breakdown Table ---------- */
.answer-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border: var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.answer-table thead {
  background: var(--clr-black);
  color: var(--clr-card);
}

.answer-table th {
  font-family: var(--font-heading);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.5px;
  padding: var(--space-md) var(--space-lg);
  text-align: left;
}

.answer-table td {
  padding: var(--space-md) var(--space-lg);
  border-bottom: 2px solid #eee;
  font-size: 0.95rem;
}

.answer-table tbody tr:nth-child(even) {
  background: var(--clr-bg);
}

.answer-table tbody tr:last-child td {
  border-bottom: none;
}

/* ---------- Question Counter ---------- */
.question-counter {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 700;
  padding: var(--space-sm) var(--space-lg);
  background: var(--clr-black);
  color: var(--clr-primary);
  border-radius: var(--radius-sm);
  display: inline-block;
}

/* ---------- Master Login (Hidden) ---------- */
.master-panel {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s ease;
}

.master-panel.visible {
  opacity: 1;
  pointer-events: all;
  transform: translate(-50%, -50%) scale(1);
}

.master-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(26, 26, 46, 0.7);
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.master-overlay.visible {
  opacity: 1;
  pointer-events: all;
}

/* ---------- Lockout Screen ---------- */
.lockout-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--clr-danger);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 100;
  animation: fade-in 0.3s ease;
}

.lockout-overlay h2 {
  font-size: 2.5rem;
  color: white;
  margin-bottom: var(--space-md);
}

.lockout-overlay p {
  font-size: 1.2rem;
  color: rgba(255,255,255,0.9);
}

/* ---------- Page Layouts ---------- */
.page-landing {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-2xl);
}

.page-landing .hero-title {
  font-size: 3.5rem;
  text-align: center;
  margin-bottom: var(--space-sm);
}

.page-landing .hero-subtitle {
  font-size: 1.2rem;
  text-align: center;
  color: var(--clr-text-muted);
  margin-bottom: var(--space-2xl);
}

.page-master {
  min-height: 100vh;
  padding: var(--space-xl) var(--space-2xl);
}

.page-participant {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl);
}

/* ---------- Lobby ---------- */
.lobby-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.lobby-header h1 {
  font-size: 2.5rem;
  margin-bottom: var(--space-lg);
}

.lobby-participants {
  margin-top: var(--space-xl);
}

.lobby-participants h3 {
  font-size: 1.3rem;
  margin-bottom: var(--space-md);
}

/* ---------- Question Display (Master) ---------- */
.master-question-area {
  max-width: 900px;
  margin: 0 auto;
}

.master-question-text {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: var(--space-xl);
  padding: var(--space-xl);
  background: var(--clr-card);
  border: var(--border-thick);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.master-options-list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.master-option {
  padding: var(--space-lg);
  border: var(--border);
  border-radius: var(--radius-sm);
  font-size: 1.1rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.master-option:nth-child(1) { background: #FFF3CD; }
.master-option:nth-child(2) { background: #D4EDDA; }
.master-option:nth-child(3) { background: #CCE5FF; }
.master-option:nth-child(4) { background: #F8D7DA; }

.master-option.correct-answer {
  outline: 4px solid var(--clr-correct);
  background: var(--clr-correct) !important;
  color: white;
}

.master-option .option-letter {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 2px solid var(--clr-black);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  flex-shrink: 0;
  background: rgba(255,255,255,0.6);
}

/* ---------- Answer Stats Row ---------- */
.stats-row {
  display: flex;
  gap: var(--space-lg);
  flex-wrap: wrap;
  margin-bottom: var(--space-xl);
}

.stat-card {
  flex: 1;
  min-width: 150px;
  padding: var(--space-lg);
  border: var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  text-align: center;
}

.stat-card .stat-value {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1;
}

.stat-card .stat-label {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: var(--space-xs);
  color: var(--clr-text-muted);
}

/* ---------- Final Screen ---------- */
.final-screen {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.final-screen h1 {
  font-size: 3.5rem;
  margin-bottom: var(--space-lg);
}

.final-emoji {
  font-size: 6rem;
  margin-bottom: var(--space-lg);
  animation: bounce 1s ease infinite;
}

/* ---------- Waiting Screen (Participant) ---------- */
.waiting-screen {
  text-align: center;
}

.waiting-screen h2 {
  font-size: 2rem;
  margin-bottom: var(--space-md);
}

.waiting-dots::after {
  content: '';
  animation: dots 1.5s steps(4) infinite;
}

@keyframes dots {
  0%  { content: ''; }
  25% { content: '.'; }
  50% { content: '..'; }
  75% { content: '...'; }
}

/* ---------- Participant Question View ---------- */
.participant-question {
  width: 100%;
  max-width: 700px;
}

.participant-question .question-text {
  font-size: 1.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--space-xl);
  padding: var(--space-lg);
  background: var(--clr-card);
  border: var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

/* ---------- Answered State ---------- */
.answered-screen {
  text-align: center;
}

.answered-screen .answer-emoji {
  font-size: 4rem;
  margin-bottom: var(--space-md);
  animation: bounce 1s ease infinite;
}

.answered-screen h2 {
  font-size: 1.8rem;
  margin-bottom: var(--space-sm);
}

/* ---------- Animations ---------- */
@keyframes pop-in {
  0% {
    opacity: 0;
    transform: scale(0.8);
  }
  50% {
    transform: scale(1.05);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-8px); }
  40% { transform: translateX(8px); }
  60% { transform: translateX(-6px); }
  80% { transform: translateX(6px); }
}

@keyframes correct-flash {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

@keyframes pulse-bar {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

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

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-10px) rotate(2deg); }
}

/* ---------- Confetti (winner celebration) ---------- */
.confetti-piece {
  position: fixed;
  width: 12px;
  height: 12px;
  border: 2px solid var(--clr-black);
  z-index: 2000;
  pointer-events: none;
  animation: confetti-fall linear forwards;
}

@keyframes confetti-fall {
  0% {
    opacity: 1;
    transform: translateY(-100vh) rotate(0deg);
  }
  100% {
    opacity: 0;
    transform: translateY(100vh) rotate(720deg);
  }
}

/* ---------- Sticker Decorations ---------- */
.sticker {
  position: absolute;
  border: 2px solid var(--clr-black);
  border-radius: var(--radius-sm);
  padding: var(--space-xs) var(--space-sm);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
  transform: rotate(-3deg);
  box-shadow: var(--shadow-sm);
  pointer-events: none;
  user-select: none;
}

/* ---------- Error Message ---------- */
.error-msg {
  background: var(--clr-danger);
  color: white;
  font-family: var(--font-heading);
  font-weight: 600;
  padding: var(--space-md) var(--space-lg);
  border: var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  margin-top: var(--space-md);
  animation: shake 0.4s ease;
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  .page-landing .hero-title {
    font-size: 2.2rem;
  }

  .room-code {
    font-size: 2.5rem;
    letter-spacing: 8px;
    padding: var(--space-md) var(--space-lg);
  }

  .options-grid {
    grid-template-columns: 1fr;
  }

  .master-options-list {
    grid-template-columns: 1fr;
  }

  .master-question-text {
    font-size: 1.4rem;
  }

  .winner-card .winner-name {
    font-size: 1.8rem;
  }

  .timer-number {
    font-size: 2rem;
  }

  .card {
    padding: var(--space-lg);
  }

  .stats-row {
    flex-direction: column;
  }

  .participant-question .question-text {
    font-size: 1.2rem;
  }

  .option-btn {
    font-size: 1rem;
    padding: var(--space-md) var(--space-lg);
  }
}

@media (max-width: 480px) {
  .page-landing .hero-title {
    font-size: 1.8rem;
  }

  .page-landing {
    padding: var(--space-lg);
  }

  .btn--large {
    font-size: 1.1rem;
    padding: var(--space-md) var(--space-lg);
  }
}