/* ============================================
   Physics Quiz Game — Dark Neon Theme
   ============================================ */

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

:root {
  --bg-primary: #0f0f1a;
  --bg-secondary: #1a1a2e;
  --bg-card: #16213e;
  --bg-card-hover: #1e2d50;
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --blue: #3b82f6;
  --blue-glow: #3b82f680;
  --blue-dark: #1e40af;
  --orange: #f97316;
  --orange-glow: #f9731680;
  --orange-dark: #c2410c;
  --green: #22c55e;
  --green-glow: #22c55e60;
  --red: #ef4444;
  --red-glow: #ef444460;
  --gold: #fbbf24;
  --gold-glow: #fbbf2460;
  --purple: #a855f7;
  --purple-glow: #a855f760;
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.3s ease;
}

html, body {
  height: 100%;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  overflow: hidden;
}

/* --- Confetti Canvas --- */
#confetti-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1000;
}

/* --- Screens --- */
.screen {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  justify-content: center;
  align-items: center;
  animation: fadeInUp 0.4s ease;
}

.screen.active {
  display: flex;
}

/* --- Scoreboard Bar --- */
.scoreboard {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: var(--bg-secondary);
  border-bottom: 2px solid #ffffff10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  z-index: 100;
  backdrop-filter: blur(10px);
}

.scoreboard.hidden {
  display: none;
}

.score-team {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 1.1rem;
  font-weight: 600;
}

.score-blue .team-name-display {
  color: var(--blue);
}

.score-orange .team-name-display {
  color: var(--orange);
}

.team-score {
  font-size: 1.8rem;
  font-weight: 800;
  min-width: 60px;
  text-align: center;
}

.score-blue .team-score {
  color: var(--blue);
  text-shadow: 0 0 20px var(--blue-glow);
}

.score-orange .team-score {
  color: var(--orange);
  text-shadow: 0 0 20px var(--orange-glow);
}

.round-indicator {
  font-size: 1rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 2px;
}

.streak-badge {
  font-size: 1rem;
  min-width: 30px;
}

/* --- Setup Screen --- */
.setup-container {
  max-width: 800px;
  width: 90%;
  max-height: 95vh;
  overflow-y: auto;
  padding: 2rem;
  text-align: center;
}

.setup-container::-webkit-scrollbar {
  width: 6px;
}

.setup-container::-webkit-scrollbar-track {
  background: transparent;
}

.setup-container::-webkit-scrollbar-thumb {
  background: #ffffff20;
  border-radius: 3px;
}

.game-title {
  font-size: 3rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, var(--blue), var(--purple), var(--orange));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.title-icon {
  color: var(--gold);
  -webkit-text-fill-color: initial;
  flex-shrink: 0;
}

.subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

/* Language Toggle */
.lang-toggle {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.lang-btn {
  padding: 0.5rem 1.5rem;
  border: 2px solid #ffffff20;
  background: transparent;
  color: var(--text-secondary);
  border-radius: 50px;
  cursor: pointer;
  font-size: 0.95rem;
  transition: var(--transition);
}

.lang-btn.active {
  border-color: var(--purple);
  color: var(--text-primary);
  background: var(--purple-glow);
  box-shadow: 0 0 15px var(--purple-glow);
}

.lang-btn:hover {
  border-color: var(--purple);
  color: var(--text-primary);
}

/* Setup Sections */
.setup-section {
  margin-bottom: 1.5rem;
  text-align: left;
}

.setup-section h2 {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.team-inputs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.team-input {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.team-input label {
  font-size: 0.9rem;
  font-weight: 600;
}

.blue-border label { color: var(--blue); }
.orange-border label { color: var(--orange); }

.team-input input {
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
  border: 2px solid #ffffff15;
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 1rem;
  transition: var(--transition);
}

.blue-border input:focus {
  border-color: var(--blue);
  box-shadow: 0 0 10px var(--blue-glow);
  outline: none;
}

.orange-border input:focus {
  border-color: var(--orange);
  box-shadow: 0 0 10px var(--orange-glow);
  outline: none;
}

/* Settings Row */
.settings-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1.5rem;
}

.setting-group label {
  display: block;
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.btn-group {
  display: flex;
  gap: 0.4rem;
}

.option-btn {
  flex: 1;
  padding: 0.5rem 0.6rem;
  border: 2px solid #ffffff15;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
  transition: var(--transition);
}

.option-btn.active {
  border-color: var(--purple);
  color: var(--text-primary);
  background: var(--purple-glow);
}

.option-btn:hover {
  border-color: var(--purple);
}

/* Category Grid */
.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.5rem;
}

.category-check {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 0.8rem;
  border-radius: var(--radius-sm);
  border: 2px solid #ffffff10;
  background: var(--bg-secondary);
  cursor: pointer;
  transition: var(--transition);
  font-size: 0.95rem;
}

.category-check:hover {
  border-color: #ffffff30;
}

.category-check input {
  accent-color: var(--purple);
  width: 18px;
  height: 18px;
}

.category-check input:checked + .cat-icon + span {
  color: var(--text-primary);
}

.cat-icon {
  font-size: 1.2rem;
}

/* Start Button */
.btn-start {
  margin-top: 1.5rem;
  padding: 1rem 3rem;
  font-size: 1.3rem;
  font-weight: 700;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  background: linear-gradient(135deg, var(--blue), var(--purple));
  color: white;
  transition: var(--transition);
  text-transform: uppercase;
  letter-spacing: 2px;
  box-shadow: 0 0 30px var(--blue-glow);
}

.btn-start:hover {
  transform: scale(1.05);
  box-shadow: 0 0 40px var(--blue-glow), 0 0 60px var(--purple-glow);
}

/* --- Ready Screen --- */
.ready-container {
  text-align: center;
}

.ready-team {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
  animation: glowPulse 1.5s ease infinite;
}

.ready-team.blue-team {
  color: var(--blue);
  text-shadow: 0 0 40px var(--blue-glow);
}

.ready-team.orange-team {
  color: var(--orange);
  text-shadow: 0 0 40px var(--orange-glow);
}

.powerups-preview {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.powerups-preview .pu-preview {
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-sm);
  border: 1px solid #ffffff20;
  background: var(--bg-card);
}

.powerups-preview .pu-preview.used {
  opacity: 0.3;
  text-decoration: line-through;
}

.countdown-number {
  font-size: 8rem;
  font-weight: 900;
  animation: zoomIn 0.5s ease;
  text-shadow: 0 0 60px var(--purple-glow);
}

/* --- Question Screen --- */
.question-container {
  width: 90%;
  max-width: 1100px;
  padding-top: 80px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.question-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.category-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  border-radius: 50px;
  background: var(--bg-card);
  border: 1px solid #ffffff20;
  font-size: 1rem;
}

.difficulty-badge {
  padding: 0.3rem 0.8rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
}

.difficulty-badge.easy {
  background: var(--green-glow);
  color: var(--green);
  border: 1px solid var(--green);
}

.difficulty-badge.medium {
  background: var(--gold-glow);
  color: var(--gold);
  border: 1px solid var(--gold);
}

.difficulty-badge.hard {
  background: var(--red-glow);
  color: var(--red);
  border: 1px solid var(--red);
}

.question-text {
  font-size: 2rem;
  font-weight: 600;
  text-align: center;
  line-height: 1.4;
  margin-bottom: 2rem;
  max-width: 900px;
}

/* Options Grid */
.options-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  width: 100%;
  max-width: 900px;
  margin-bottom: 1.5rem;
}

.option-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.2rem 1.5rem;
  border: 2px solid #ffffff15;
  border-radius: var(--radius);
  background: var(--bg-card);
  color: var(--text-primary);
  font-size: 1.3rem;
  cursor: pointer;
  transition: var(--transition);
  text-align: left;
}

.option-card:hover:not(.disabled):not(.correct):not(.wrong) {
  border-color: #ffffff40;
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

.option-card .option-key {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #ffffff10;
  font-weight: 700;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.option-card.correct {
  border-color: var(--green);
  background: var(--green-glow);
  animation: pulse 0.5s ease;
}

.option-card.correct .option-key {
  background: var(--green);
  color: white;
}

.option-card.wrong {
  border-color: var(--red);
  background: var(--red-glow);
  animation: shake 0.5s ease;
}

.option-card.wrong .option-key {
  background: var(--red);
  color: white;
}

.option-card.disabled {
  opacity: 0.25;
  pointer-events: none;
  transform: scale(0.95);
}

.option-card.eliminated {
  opacity: 0.15;
  pointer-events: none;
  animation: eliminateOption 0.5s ease forwards;
}

/* Timer */
.timer-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 100px;
  height: 100px;
}

.timer-svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.timer-bg {
  fill: none;
  stroke: #ffffff10;
  stroke-width: 8;
}

.timer-fill {
  fill: none;
  stroke: var(--blue);
  stroke-width: 8;
  stroke-linecap: round;
  stroke-dasharray: 339.292;
  stroke-dashoffset: 0;
  transition: stroke-dashoffset 1s linear, stroke 0.3s ease;
}

.timer-fill.urgent {
  stroke: var(--red);
  animation: timerPulse 0.5s ease infinite;
}

.timer-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 2rem;
  font-weight: 800;
}

.timer-text.urgent {
  color: var(--red);
  animation: timerPulse 0.5s ease infinite;
}

/* Power-ups Bar */
.powerups-bar {
  display: flex;
  gap: 0.8rem;
  margin-top: 0.5rem;
}

.powerup-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.2rem;
  border-radius: 50px;
  border: 2px solid #ffffff20;
  background: var(--bg-card);
  color: var(--text-primary);
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
  transition: var(--transition);
}

.powerup-btn.team-blue {
  border-color: var(--blue);
  box-shadow: 0 0 15px var(--blue-glow);
}

.powerup-btn.team-orange {
  border-color: var(--orange);
  box-shadow: 0 0 15px var(--orange-glow);
}

.powerup-btn:hover:not(.used):not(.active-pu) {
  transform: translateY(-2px);
  box-shadow: 0 0 25px var(--purple-glow);
}

.powerup-btn.used {
  opacity: 0.3;
  cursor: not-allowed;
  pointer-events: none;
}

.powerup-btn.active-pu {
  animation: powerUpActivate 0.5s ease;
  border-color: var(--gold);
  background: var(--gold-glow);
  box-shadow: 0 0 25px var(--gold-glow);
}

.pu-icon {
  display: flex;
  align-items: center;
  font-weight: 800;
  font-size: 1rem;
}

.pu-icon svg {
  display: block;
}

.active-powerup-indicator {
  position: fixed;
  top: 70px;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.5rem 1.5rem;
  border-radius: 50px;
  background: var(--gold);
  color: var(--bg-primary);
  font-weight: 700;
  font-size: 1rem;
  animation: glowPulse 1s ease infinite;
  z-index: 101;
}

.active-powerup-indicator.hidden {
  display: none;
}

/* --- Reveal Screen --- */
.reveal-container {
  text-align: center;
  padding-top: 80px;
  width: 90%;
  max-width: 900px;
}

.reveal-result {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 2rem;
}

.reveal-result.is-correct {
  color: var(--green);
  text-shadow: 0 0 30px var(--green-glow);
}

.reveal-result.is-wrong {
  color: var(--red);
  text-shadow: 0 0 30px var(--red-glow);
}

.reveal-result.is-timeout {
  color: var(--orange);
  text-shadow: 0 0 30px var(--orange-glow);
}

.reveal-icon {
  font-size: 3rem;
}

.reveal-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
  margin-bottom: 2rem;
}

.reveal-option {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 1rem 1.2rem;
  border-radius: var(--radius);
  border: 2px solid #ffffff10;
  background: var(--bg-card);
  font-size: 1.1rem;
  text-align: left;
}

.reveal-option .option-key {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #ffffff10;
  font-weight: 700;
  flex-shrink: 0;
}

.reveal-option.is-correct {
  border-color: var(--green);
  background: var(--green-glow);
}

.reveal-option.is-correct .option-key {
  background: var(--green);
  color: white;
}

.reveal-option.is-selected.is-wrong-choice {
  border-color: var(--red);
  background: var(--red-glow);
}

.reveal-option.is-selected.is-wrong-choice .option-key {
  background: var(--red);
  color: white;
}

.explanation-box {
  background: var(--bg-card);
  border: 1px solid #ffffff15;
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  text-align: left;
}

.explanation-box h3 {
  color: var(--gold);
  font-size: 1rem;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.explanation-box p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  line-height: 1.6;
}

.points-earned {
  margin-bottom: 1.5rem;
  animation: zoomIn 0.5s ease;
}

.points-value {
  display: block;
  font-size: 3rem;
  font-weight: 900;
  color: var(--gold);
  text-shadow: 0 0 30px var(--gold-glow);
}

.points-value.zero {
  color: var(--red);
  text-shadow: 0 0 30px var(--red-glow);
}

.points-breakdown {
  display: block;
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-top: 0.3rem;
}

.btn-next {
  padding: 0.8rem 2.5rem;
  font-size: 1.1rem;
  font-weight: 700;
  border: 2px solid var(--purple);
  border-radius: 50px;
  background: var(--purple-glow);
  color: var(--text-primary);
  cursor: pointer;
  transition: var(--transition);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.btn-next:hover {
  background: var(--purple);
  box-shadow: 0 0 20px var(--purple-glow);
}

/* --- Game Over Screen --- */
.gameover-container {
  text-align: center;
}

.trophy-animation {
  animation: trophyBounce 1s ease;
  margin-bottom: 1rem;
}

.trophy-svg {
  filter: drop-shadow(0 0 20px var(--gold-glow));
}

.winner-text {
  font-size: 3rem;
  font-weight: 900;
  margin-bottom: 2rem;
  animation: glowPulse 1.5s ease infinite;
}

.winner-text.blue-winner {
  color: var(--blue);
  text-shadow: 0 0 40px var(--blue-glow);
}

.winner-text.orange-winner {
  color: var(--orange);
  text-shadow: 0 0 40px var(--orange-glow);
}

.winner-text.tie-text {
  color: var(--purple);
  text-shadow: 0 0 40px var(--purple-glow);
}

.final-scores {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 2rem;
}

.final-score {
  padding: 1.5rem 2.5rem;
  border-radius: var(--radius);
  border: 2px solid #ffffff15;
  background: var(--bg-card);
  text-align: center;
  min-width: 200px;
}

.final-score.blue-glow {
  border-color: var(--blue);
  box-shadow: 0 0 20px var(--blue-glow);
}

.final-score.orange-glow {
  border-color: var(--orange);
  box-shadow: 0 0 20px var(--orange-glow);
}

.final-score.winner-highlight {
  transform: scale(1.1);
  animation: glowPulse 1.5s ease infinite;
}

.final-team-name {
  display: block;
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

.final-team-score {
  display: block;
  font-size: 3rem;
  font-weight: 900;
}

.blue-glow .final-team-score {
  color: var(--blue);
}

.orange-glow .final-team-score {
  color: var(--orange);
}

.vs-divider {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-secondary);
}

/* --- Tiebreaker Screen --- */
.tiebreaker-container {
  text-align: center;
  width: 90%;
  max-width: 1100px;
  padding-top: 20px;
}

.tiebreaker-title {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--gold);
  text-shadow: 0 0 40px var(--gold-glow);
  margin-bottom: 0.5rem;
  animation: glowPulse 1s ease infinite;
}

.tiebreaker-instruction {
  color: var(--text-secondary);
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
}

.buzz-buttons {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-top: 1.5rem;
}

.buzz-btn {
  padding: 1rem 3rem;
  font-size: 1.5rem;
  font-weight: 800;
  border: 3px solid;
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--transition);
  background: var(--bg-card);
  text-transform: uppercase;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
}

.buzz-btn .buzz-key {
  font-size: 0.9rem;
  font-weight: 400;
  opacity: 0.7;
}

.buzz-blue {
  color: var(--blue);
  border-color: var(--blue);
  box-shadow: 0 0 20px var(--blue-glow);
}

.buzz-blue:hover {
  background: var(--blue-glow);
  box-shadow: 0 0 40px var(--blue-glow);
  transform: scale(1.05);
}

.buzz-orange {
  color: var(--orange);
  border-color: var(--orange);
  box-shadow: 0 0 20px var(--orange-glow);
}

.buzz-orange:hover {
  background: var(--orange-glow);
  box-shadow: 0 0 40px var(--orange-glow);
  transform: scale(1.05);
}

.buzz-btn.buzzed {
  animation: pulse 0.5s ease;
  transform: scale(1.1);
}

.buzz-btn.disabled-buzz {
  opacity: 0.3;
  pointer-events: none;
}

/* ============================================
   ANIMATIONS
   ============================================ */

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

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
  20%, 40%, 60%, 80% { transform: translateX(5px); }
}

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

@keyframes glowPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

@keyframes trophyBounce {
  0% { transform: scale(0) rotate(-10deg); }
  50% { transform: scale(1.2) rotate(5deg); }
  70% { transform: scale(0.9) rotate(-3deg); }
  100% { transform: scale(1) rotate(0); }
}

@keyframes timerPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

@keyframes zoomIn {
  from {
    transform: scale(0.3);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

@keyframes streakFire {
  0% { transform: scale(1); }
  50% { transform: scale(1.3); }
  100% { transform: scale(1); }
}

@keyframes fillBar {
  from { width: 0; }
  to { width: 100%; }
}

@keyframes powerUpActivate {
  0% { transform: scale(1); }
  30% { transform: scale(1.2); box-shadow: 0 0 40px var(--gold-glow); }
  100% { transform: scale(1); }
}

@keyframes eliminateOption {
  0% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    transform: scale(0.95) rotateX(10deg);
  }
  100% {
    opacity: 0.15;
    transform: scale(0.95);
  }
}

@keyframes confettiFall {
  0% {
    transform: translateY(-10vh) rotate(0deg);
    opacity: 1;
  }
  100% {
    transform: translateY(110vh) rotate(720deg);
    opacity: 0;
  }
}

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

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

  .settings-row {
    grid-template-columns: 1fr;
  }

  .team-inputs {
    grid-template-columns: 1fr;
  }

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

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

  .option-card {
    font-size: 1.1rem;
  }

  .scoreboard {
    padding: 0 1rem;
    font-size: 0.9rem;
  }

  .team-name-display {
    display: none;
  }

  .final-scores {
    flex-direction: column;
    gap: 1rem;
  }

  .buzz-buttons {
    flex-direction: column;
    gap: 1rem;
  }
}

/* Full-screen mode tweak */
:fullscreen {
  background: var(--bg-primary);
}

:fullscreen .screen.active {
  display: flex;
}