:root {
  /* Official & Vibrant LSU Brand Palette */
  --lsu-purple: #461D7C;
  --lsu-purple-deep: #2A084E;
  --lsu-purple-vibrant: #5C279D;
  --lsu-purple-light: #7B3FC4;
  --lsu-purple-card: rgba(42, 14, 80, 0.88);
  
  --lsu-gold: #FDD023;
  --lsu-gold-metallic: #FFC72C;
  --lsu-gold-light: #FFE57F;
  --lsu-gold-glow: rgba(253, 208, 35, 0.45);
  
  --white: #FFFFFF;
  --text-muted: #E2D4F0;
  --success: #10B981;
  --danger: #EF4444;
}

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

body {
  font-family: 'Open Sans', sans-serif;
  /* Deep purple gradient with LSU stripes ambient vibe */
  background: radial-gradient(circle at 50% 15%, #581d8a 0%, #320f5c 50%, #17042a 100%);
  color: var(--white);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  overflow-x: hidden;
  padding: 24px 16px;
}

/* LSU Tiger Stripes / Diagonal Stadium Glow */
.background-decorations {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(253, 208, 35, 0.18) 0%, transparent 45%),
    radial-gradient(circle at 90% 80%, rgba(253, 208, 35, 0.14) 0%, transparent 45%),
    repeating-linear-gradient(
      -45deg,
      rgba(70, 29, 124, 0.25) 0px,
      rgba(70, 29, 124, 0.25) 30px,
      rgba(42, 8, 78, 0.4) 30px,
      rgba(42, 8, 78, 0.4) 60px
    );
}

.blob {
  position: absolute;
  filter: blur(120px);
  border-radius: 50%;
  pointer-events: none;
}

.blob-purple {
  width: 600px;
  height: 600px;
  background: #7B3FC4;
  opacity: 0.35;
  top: -120px;
  right: -100px;
}

.blob-gold {
  width: 500px;
  height: 500px;
  background: var(--lsu-gold);
  opacity: 0.28;
  bottom: -100px;
  left: -100px;
}

/* Gold Stadium Accent Strip */
.stadium-border-top {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 6px;
  background: linear-gradient(90deg, var(--lsu-purple) 0%, var(--lsu-gold) 50%, var(--lsu-purple) 100%);
  z-index: 100;
  box-shadow: 0 0 16px var(--lsu-gold);
}

.container {
  width: 100%;
  max-width: 680px;
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Header */
.header {
  text-align: center;
  padding-bottom: 4px;
}

.tiger-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--lsu-gold), #FFB800);
  color: var(--lsu-purple-deep);
  font-family: 'Montserrat', sans-serif;
  font-weight: 900;
  font-size: 0.9rem;
  letter-spacing: 2px;
  padding: 7px 18px;
  border-radius: 999px;
  margin-bottom: 14px;
  box-shadow: 0 4px 18px var(--lsu-gold-glow);
  border: 2px solid rgba(255, 255, 255, 0.4);
}

.header h1 {
  font-family: 'Montserrat', sans-serif;
  font-size: 2.6rem;
  font-weight: 900;
  letter-spacing: -0.5px;
  text-transform: uppercase;
  color: var(--lsu-gold);
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.7), 0 0 30px var(--lsu-gold-glow);
}

.subtitle {
  color: var(--lsu-gold-light);
  font-size: 1.1rem;
  font-weight: 600;
  margin-top: 6px;
  letter-spacing: 0.5px;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.6);
}

/* LSU Card Container */
.card {
  background: var(--lsu-purple-card);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 2.5px solid var(--lsu-gold);
  border-radius: 24px;
  padding: 34px 28px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6), 0 0 24px rgba(253, 208, 35, 0.25);
  position: relative;
  overflow: hidden;
}

/* Card top ribbon */
.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: linear-gradient(90deg, var(--lsu-purple-light), var(--lsu-gold), var(--lsu-purple-light));
}

.card.hidden {
  display: none;
}

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

.mascot-avatar {
  font-size: 4.2rem;
  margin-bottom: 12px;
  filter: drop-shadow(0 6px 12px rgba(0, 0, 0, 0.5));
  animation: bounce 2.2s infinite ease-in-out;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.card h2 {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 10px;
}

.card p {
  color: var(--text-muted);
  line-height: 1.6;
}

/* Category Badges */
.category-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin: 22px 0;
}

.badge {
  background: rgba(70, 29, 124, 0.9);
  border: 1.5px solid var(--lsu-gold);
  color: var(--lsu-gold-light);
  font-size: 0.85rem;
  font-weight: 700;
  padding: 8px 16px;
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.game-settings {
  background: rgba(42, 8, 78, 0.7);
  border: 1px solid rgba(253, 208, 35, 0.35);
  border-radius: 12px;
  padding: 14px;
  margin-bottom: 26px;
}

.game-settings p {
  font-size: 0.95rem;
  color: var(--lsu-gold);
}

/* Buttons */
.btn {
  display: inline-block;
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: 0.5px;
  border: none;
  border-radius: 14px;
  padding: 15px 30px;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  text-transform: uppercase;
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: linear-gradient(135deg, var(--lsu-gold) 0%, #FFB800 100%);
  color: var(--lsu-purple-deep);
  box-shadow: 0 8px 25px rgba(253, 208, 35, 0.45);
  border: 2px solid #FFF176;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #FFE066 0%, var(--lsu-gold) 100%);
  box-shadow: 0 10px 30px rgba(253, 208, 35, 0.65);
  transform: translateY(-3px);
}

.btn-gold {
  background: linear-gradient(135deg, var(--lsu-gold), #FFB800);
  color: var(--lsu-purple-deep);
  font-size: 0.95rem;
  padding: 13px 26px;
  border: 1.5px solid #FFF176;
  box-shadow: 0 6px 18px rgba(253, 208, 35, 0.4);
}

.btn-gold:hover {
  transform: translateY(-2px);
  filter: brightness(1.08);
}

.btn-large {
  font-size: 1.2rem;
  padding: 18px 38px;
  width: 100%;
  max-width: 340px;
}

/* Quiz Top Bar */
.quiz-top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.progress-wrap {
  flex: 1;
}

#question-count {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--lsu-gold);
  text-transform: uppercase;
  letter-spacing: 1.2px;
  display: block;
  margin-bottom: 6px;
}

.progress-bar-bg {
  background: rgba(0, 0, 0, 0.4);
  height: 10px;
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid rgba(253, 208, 35, 0.3);
}

.progress-bar-fill {
  background: linear-gradient(90deg, var(--lsu-purple-light) 0%, var(--lsu-gold) 100%);
  height: 100%;
  width: 10%;
  border-radius: 999px;
  transition: width 0.4s ease;
  box-shadow: 0 0 10px var(--lsu-gold);
}

.timer-badge {
  background: rgba(42, 8, 78, 0.9);
  border: 2px solid var(--lsu-gold);
  padding: 7px 14px;
  border-radius: 20px;
  font-size: 1rem;
  font-weight: 800;
  color: var(--lsu-gold);
  white-space: nowrap;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.timer-badge.warning {
  border-color: var(--danger);
  color: var(--danger);
  background: rgba(239, 68, 68, 0.15);
  animation: pulse 0.8s infinite alternate;
}

@keyframes pulse {
  0% { transform: scale(1); }
  100% { transform: scale(1.08); }
}

.category-indicator {
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--lsu-gold);
  margin-bottom: 10px;
  display: inline-block;
  background: rgba(70, 29, 124, 0.6);
  padding: 4px 10px;
  border-radius: 6px;
}

.question-container {
  margin-bottom: 24px;
}

.question-container h2 {
  font-size: 1.45rem;
  line-height: 1.4;
  color: var(--white);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

/* Answers Grid */
.answers-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-bottom: 22px;
}

.answer-option {
  background: rgba(70, 29, 124, 0.55);
  border: 2px solid rgba(253, 208, 35, 0.35);
  color: var(--white);
  border-radius: 14px;
  padding: 16px 20px;
  text-align: left;
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 14px;
  transition: all 0.2s ease;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.answer-option .opt-letter {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--lsu-gold), #FFB800);
  font-weight: 900;
  font-size: 1rem;
  color: var(--lsu-purple-deep);
  flex-shrink: 0;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

.answer-option:hover:not(:disabled) {
  background: rgba(92, 39, 157, 0.85);
  border-color: var(--lsu-gold);
  transform: translateX(6px);
  box-shadow: 0 4px 16px var(--lsu-gold-glow);
}

.answer-option.correct {
  background: rgba(16, 185, 129, 0.35) !important;
  border-color: var(--success) !important;
  color: #A7F3D0 !important;
}

.answer-option.correct .opt-letter {
  background: var(--success);
  color: #FFFFFF;
}

.answer-option.wrong {
  background: rgba(239, 68, 68, 0.35) !important;
  border-color: var(--danger) !important;
  color: #FECACA !important;
}

.answer-option.wrong .opt-letter {
  background: var(--danger);
  color: #FFFFFF;
}

.answer-option:disabled {
  cursor: default;
}

/* Explanation Box */
.explanation-box {
  background: rgba(23, 4, 42, 0.85);
  border-left: 5px solid var(--lsu-gold);
  padding: 18px;
  border-radius: 0 14px 14px 0;
  margin-bottom: 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.4);
  animation: fadeIn 0.3s ease-in-out;
}

.explanation-box.hidden {
  display: none;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.result-tag {
  font-size: 1rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.result-tag.correct {
  color: #34D399;
}

.result-tag.wrong {
  color: #F87171;
}

.explanation-box p {
  font-size: 0.98rem;
  color: #F1F5F9;
  line-height: 1.6;
}

/* Score Pill */
.score-pill {
  font-size: 1rem;
  font-weight: 800;
  color: var(--lsu-gold);
  text-align: right;
  letter-spacing: 0.5px;
}

/* Results Screen */
.final-score-display {
  font-family: 'Montserrat', sans-serif;
  font-size: 3.6rem;
  font-weight: 900;
  color: var(--lsu-gold);
  margin: 16px 0 6px;
  text-shadow: 0 4px 20px var(--lsu-gold-glow);
}

.score-unit {
  font-size: 1.1rem;
  color: var(--lsu-gold-light);
  font-weight: 800;
  display: block;
  letter-spacing: 2px;
}

.stat-summary {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin: 22px 0 26px;
}

.stat-box {
  background: rgba(70, 29, 124, 0.6);
  border: 2px solid rgba(253, 208, 35, 0.4);
  padding: 14px 20px;
  border-radius: 16px;
  min-width: 95px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.stat-val {
  display: block;
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--lsu-gold);
}

.stat-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  font-weight: 700;
}

.result-feedback {
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 26px;
  color: var(--lsu-gold);
}

.action-buttons {
  display: flex;
  justify-content: center;
  gap: 12px;
}

/* Footer */
.footer {
  text-align: center;
  color: rgba(253, 208, 35, 0.7);
  font-size: 0.85rem;
  font-weight: 600;
}

@media (max-width: 500px) {
  .header h1 {
    font-size: 2rem;
  }
  .card {
    padding: 24px 18px;
  }
  .btn-large {
    width: 100%;
  }
}