/* ===========================================
   Logic Quest - 90s Trivia Game Styles
   Mobile-first, TikTok-friendly design
   =========================================== */

/* CSS Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Color Palette - Bold & Modern */
  --primary: #6C5CE7;
  --primary-dark: #5B4BD5;
  --secondary: #00CEC9;
  --accent: #FD79A8;
  --success: #00B894;
  --danger: #FF7675;
  --warning: #FDCB6E;
  --gold: #FFD700;
  
  /* Backgrounds */
  --bg-dark: #0D0D0D;
  --bg-card: #1A1A2E;
  --bg-card-hover: #252542;
  
  /* Text */
  --text-primary: #FFFFFF;
  --text-secondary: #A0A0B0;
  --text-muted: #6B6B7B;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 50px;
}

html, body {
  height: 100%;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* App Container - Full Screen */
.app-container {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  padding: var(--spacing-lg);
  padding-bottom: 80px;
  max-width: 500px;
  margin: 0 auto;
}

/* Screen States */
.screen {
  display: none;
  flex-direction: column;
  flex: 1;
  animation: fadeIn 0.3s ease;
}

.screen.active {
  display: flex;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.hidden {
  display: none !important;
}

/* ===========================================
   PREMIUM BADGE
   =========================================== */
.premium-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  background: linear-gradient(135deg, var(--gold), #FFA500);
  color: #1A1A2E;
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  margin-top: var(--spacing-sm);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.premium-badge .crown {
  font-size: 1rem;
}

/* ===========================================
   START SCREEN
   =========================================== */
#start-screen {
  justify-content: center;
  align-items: center;
  gap: var(--spacing-lg);
  text-align: center;
}

.logo-container {
  margin-bottom: var(--spacing-md);
}

.logo {
  font-size: 3rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.tagline {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-top: var(--spacing-xs);
  font-weight: 600;
}

.high-score-display,
.rounds-display {
  background: var(--bg-card);
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
}

.high-score-display .label,
.rounds-display .label {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.high-score-display .value {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--secondary);
}

.rounds-display .value {
  font-size: 2rem;
  font-weight: 900;
  color: var(--warning);
}

.rounds-display.unlimited .value {
  font-size: 1.5rem;
  color: var(--gold);
}

/* Mode Selector */
.mode-selector {
  display: flex;
  gap: var(--spacing-sm);
  width: 100%;
}

.mode-btn {
  flex: 1;
  padding: var(--spacing-md);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
}

.mode-btn.active {
  border-color: var(--primary);
  color: var(--text-primary);
  background: var(--bg-card-hover);
}

.mode-btn .lock-icon {
  font-size: 0.9rem;
}

.mode-btn.unlocked .lock-icon {
  display: none;
}

/* ===========================================
   BUTTONS
   =========================================== */
.primary-btn {
  width: 100%;
  padding: var(--spacing-lg);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: transform 0.1s ease, box-shadow 0.2s ease;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.primary-btn:active {
  transform: scale(0.98);
}

.primary-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.secondary-btn {
  width: 100%;
  padding: var(--spacing-md);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: transparent;
  border: 2px solid var(--bg-card-hover);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: border-color 0.2s ease;
}

.secondary-btn:active {
  border-color: var(--primary);
}

.premium-btn {
  width: 100%;
  padding: var(--spacing-md);
  font-size: 1rem;
  font-weight: 700;
  color: #1A1A2E;
  background: linear-gradient(135deg, var(--gold), #FFA500);
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: transform 0.1s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
}

.premium-btn:active {
  transform: scale(0.98);
}

.premium-btn .crown {
  font-size: 1.1rem;
}

.restore-btn {
  width: 100%;
  padding: var(--spacing-sm);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  background: transparent;
  border: 1px solid var(--bg-card-hover);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
  margin-top: var(--spacing-sm);
}

.restore-btn:hover {
  color: var(--text-secondary);
  border-color: var(--text-muted);
}

.restore-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.restore-input {
  width: 100%;
  padding: var(--spacing-md);
  font-size: 1rem;
  font-family: inherit;
  color: var(--text-primary);
  background: var(--bg-dark);
  border: 2px solid var(--bg-card-hover);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color 0.2s ease;
}

.restore-input:focus {
  border-color: var(--primary);
}

.restore-input::placeholder {
  color: var(--text-muted);
}

.restore-message {
  text-align: center;
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.9rem;
}

.restore-message.success {
  background: rgba(0, 255, 136, 0.15);
  color: var(--correct);
}

.restore-message.error {
  background: rgba(255, 107, 129, 0.15);
  color: var(--wrong);
}

/* Welcome Premium Modal */
.welcome-content {
  text-align: center;
  padding: var(--spacing-xl);
}

.welcome-crown {
  font-size: 4rem;
  color: var(--gold);
  margin-bottom: var(--spacing-md);
  animation: pulse 2s ease-in-out infinite;
}

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

.welcome-title {
  color: var(--gold);
  margin-bottom: var(--spacing-sm);
}

.welcome-features {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin: var(--spacing-lg) 0;
  text-align: left;
}

.welcome-feature {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-dark);
  border-radius: var(--radius-md);
}

.feature-check {
  color: var(--correct);
  font-weight: bold;
}

/* ===========================================
   GAME SCREEN
   =========================================== */
.game-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
  gap: var(--spacing-md);
}

.progress-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  position: relative;
}

.progress-info span:first-child {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-secondary);
}

.music-toggle {
  position: absolute;
  right: -50px;
  top: 50%;
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 2px solid var(--primary);
  background: var(--bg-card);
  color: var(--primary);
  font-size: 1.2rem;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.music-toggle:hover {
  background: var(--primary);
  color: var(--bg-dark);
}

.music-toggle.muted {
  border-color: var(--text-muted);
  color: var(--text-muted);
  opacity: 0.6;
}

.music-toggle.muted:hover {
  background: var(--text-muted);
  color: var(--bg-dark);
}

.mode-indicator {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--danger);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.timer-container {
  flex: 1;
  max-width: 120px;
  position: relative;
  height: 40px;
  background: var(--bg-card);
  border-radius: var(--radius-full);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.timer-bar {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, var(--success), var(--warning));
  transition: width 0.1s linear;
  border-radius: var(--radius-full);
}

.timer-bar.warning {
  background: linear-gradient(90deg, var(--warning), var(--danger));
}

.timer-bar.danger {
  background: var(--danger);
}

.timer-text {
  position: relative;
  z-index: 1;
  font-size: 1.25rem;
  font-weight: 900;
  color: var(--text-primary);
  text-shadow: 0 1px 2px rgba(0,0,0,0.5);
}

.score-display {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}

.score-display .label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
}

.score-display .value {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--secondary);
}

/* Hints Display */
.hints-display {
  display: flex;
  justify-content: center;
  margin-bottom: var(--spacing-md);
}

.hint-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--bg-card);
  border: 2px solid var(--warning);
  border-radius: var(--radius-full);
  color: var(--warning);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
}

.hint-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  border-color: var(--text-muted);
  color: var(--text-muted);
}

.hint-btn .hint-icon {
  font-size: 1.2rem;
}

/* Question */
.question-container {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md) 0;
}

.question-text {
  font-size: 1.5rem;
  font-weight: 700;
  text-align: center;
  line-height: 1.4;
  color: var(--text-primary);
}

/* Options */
.options-container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.option-btn {
  position: relative;
  z-index: 1;
  width: 100%;
  padding: var(--spacing-lg);
  font-size: 1.1rem;
  font-weight: 600;
  text-align: left;
  color: var(--text-primary);
  background: var(--bg-card);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.option-btn:active:not(:disabled) {
  background: var(--bg-card-hover);
}

.option-btn.selected {
  border-color: var(--primary);
  background: var(--bg-card-hover);
}

.option-btn.correct {
  border-color: var(--success);
  background: rgba(0, 184, 148, 0.2);
}

.option-btn.incorrect {
  border-color: var(--danger);
  background: rgba(255, 118, 117, 0.2);
}

.option-btn.eliminated {
  opacity: 0.3;
  text-decoration: line-through;
}

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

/* Feedback */
.feedback-container {
  display: none;
  flex-direction: column;
  gap: var(--spacing-md);
  padding-top: var(--spacing-md);
}

.feedback-container.visible {
  display: flex;
}

.feedback-text {
  font-size: 1.1rem;
  font-weight: 600;
  text-align: center;
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
}

.feedback-text.correct {
  color: var(--success);
  background: rgba(0, 184, 148, 0.15);
}

.feedback-text.incorrect {
  color: var(--danger);
  background: rgba(255, 118, 117, 0.15);
}

/* ===========================================
   RESULTS SCREEN
   =========================================== */
#results-screen {
  justify-content: center;
  align-items: center;
}

.results-content {
  text-align: center;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.results-title {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--text-primary);
}

.final-score-container {
  background: var(--bg-card);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.final-score-container .label {
  font-size: 0.9rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.final-score {
  font-size: 4rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.new-high-score {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--warning);
  animation: pulse 1s ease infinite;
}

.new-high-score.hidden {
  display: none;
}

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

.stats-row {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xl);
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
}

.stat-value {
  font-size: 2rem;
  font-weight: 900;
  color: var(--text-primary);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
}

/* ===========================================
   PREMIUM MODAL
   =========================================== */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
}

.modal-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.85);
}

.modal-content {
  position: relative;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  max-width: 400px;
  width: 100%;
  animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.modal-close {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  width: 32px;
  height: 32px;
  border: none;
  background: var(--bg-card-hover);
  border-radius: 50%;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.modal-title {
  font-size: 1.75rem;
  font-weight: 900;
  color: var(--gold);
  text-align: center;
  margin-bottom: var(--spacing-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
}

.modal-title .crown {
  font-size: 1.5rem;
}

.modal-subtitle {
  text-align: center;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
  font-size: 0.95rem;
}

/* Comparison Table */
.comparison-table {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: var(--spacing-lg);
  background: var(--bg-dark);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.comparison-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  background: var(--bg-card-hover);
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 0.9rem;
}

.comparison-row.header {
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 1px;
}

.comparison-row span:first-child {
  color: var(--text-primary);
  font-weight: 600;
}

.comparison-row span:nth-child(2) {
  text-align: center;
  color: var(--text-muted);
}

.comparison-row .premium-col {
  text-align: center;
  color: var(--gold);
  font-weight: 600;
}

.premium-purchase-btn {
  margin-top: var(--spacing-md);
}

.modal-note {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-top: var(--spacing-md);
}

/* ===========================================
   AD BANNER PLACEHOLDER
   =========================================== */
.ad-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: var(--bg-card);
  border-top: 1px solid var(--bg-card-hover);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ===========================================
   AWARDS SYSTEM
   =========================================== */
.awards-container {
  margin-top: var(--spacing-lg);
  padding: var(--spacing-md);
  background: linear-gradient(135deg, rgba(108, 92, 231, 0.15), rgba(253, 121, 168, 0.15));
  border: 2px solid var(--gold);
  border-radius: var(--radius-lg);
  animation: awardGlow 2s ease-in-out infinite;
}

@keyframes awardGlow {
  0%, 100% {
    box-shadow: 0 0 10px rgba(255, 215, 0, 0.3);
  }
  50% {
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.6);
  }
}

.awards-title {
  text-align: center;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--gold);
  margin-bottom: var(--spacing-md);
  text-transform: uppercase;
  letter-spacing: 2px;
}

.awards-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.award-badge {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-card);
  border-radius: var(--radius-md);
  animation: slideInBounce 0.5s ease-out;
}

@keyframes slideInBounce {
  0% {
    opacity: 0;
    transform: translateX(-20px) scale(0.9);
  }
  60% {
    transform: translateX(5px) scale(1.02);
  }
  100% {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
}

.award-icon {
  font-size: 2rem;
  min-width: 2.5rem;
  text-align: center;
}

.award-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.award-name {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.award-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ===========================================
   RESPONSIVE - Larger Screens
   =========================================== */
@media (min-height: 700px) {
  .logo {
    font-size: 3.5rem;
  }
  
  .question-text {
    font-size: 1.75rem;
  }
  
  .option-btn {
    padding: var(--spacing-lg) var(--spacing-xl);
    font-size: 1.2rem;
  }
}

@media (min-width: 400px) {
  .app-container {
    padding: var(--spacing-xl);
    padding-bottom: 80px;
  }
}