/* ===== PastQ Custom Styles ===== */

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

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse-ring {
  0% { transform: scale(1); opacity: 1; }
  100% { transform: scale(1.4); opacity: 0; }
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-4px); }
  75% { transform: translateX(4px); }
}

@keyframes score-count {
  from { transform: scale(0.5); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

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

@keyframes scaleIn {
  from { transform: scale(0.9); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

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

.animate-scale-in {
  animation: scaleIn 0.3s ease-out both;
}

.animate-fade-in-up {
  animation: fadeInUp 0.5s ease-out both;
}

.delay-100 {
  animation-delay: 0.1s;
}

.delay-200 {
  animation-delay: 0.2s;
}

.animate-slide-down {
  animation: slideDown 0.3s ease-out both;
}

.animate-shake {
  animation: shake 0.4s ease-in-out;
}

.animate-score {
  animation: score-count 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275) both;
}

/* Question card transitions */
.question-card {
  transition: all 0.3s ease;
}

.question-card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

/* Radio / Option styling */
.option-label {
  transition: all 0.2s ease;
  cursor: pointer;
  user-select: none;
}

.option-label:hover {
  border-color: #93c5fd;
  background-color: #eff6ff;
}

:is(.dark) .option-label:hover {
  border-color: #1d4ed8;
  background-color: rgba(29, 78, 216, 0.1);
}

.option-label.selected {
  border-color: #3b82f6;
  background-color: #eff6ff;
  box-shadow: 0 0 0 1px #3b82f6;
}

:is(.dark) .option-label.selected {
  border-color: #3b82f6;
  background-color: rgba(59, 130, 246, 0.15);
}

.option-label.correct {
  border-color: #10b981;
  background-color: #ecfdf5;
  box-shadow: 0 0 0 1px #10b981;
}

:is(.dark) .option-label.correct {
  border-color: #10b981;
  background-color: rgba(16, 185, 129, 0.15);
}

.option-label.wrong {
  border-color: #ef4444;
  background-color: #fef2f2;
  box-shadow: 0 0 0 1px #ef4444;
}

:is(.dark) .option-label.wrong {
  border-color: #ef4444;
  background-color: rgba(239, 68, 68, 0.15);
}

/* Timer urgency */
.timer-warning {
  color: #f59e0b;
}

.timer-danger {
  color: #ef4444;
  animation: shake 0.5s ease-in-out infinite;
}

/* Toast animation */
.toast-visible {
  animation: fadeInUp 0.3s ease-out both;
}

.toast-hidden {
  animation: fadeIn 0.3s ease-out both reverse;
}

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

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

::-webkit-scrollbar-thumb {
  background-color: #d1d5db;
  border-radius: 3px;
}

:is(.dark) ::-webkit-scrollbar-thumb {
  background-color: #374151;
}

/* Saved quiz card */
.saved-quiz-card {
  transition: all 0.2s ease;
}

.saved-quiz-card:hover {
  border-color: #93c5fd;
}

/* Leaderboard entry */
.lb-entry {
  transition: all 0.2s ease;
}

.lb-entry:hover {
  background-color: #f9fafb;
}

:is(.dark) .lb-entry:hover {
  background-color: rgba(255, 255, 255, 0.03);
}

/* Confetti */
.confetti-piece {
  position: fixed;
  top: -10px;
  z-index: 100;
  pointer-events: none;
  animation: confetti-fall linear forwards;
}

/* Filter buttons */
.filter-btn.active {
  background-color: #1470f5 !important;
  color: white !important;
}

:is(.dark) .filter-btn.active {
  background-color: #1470f5 !important;
}

.filter-btn.active span {
  color: rgba(255, 255, 255, 0.8) !important;
}

/* Font size variants */
body.font-sm {
  font-size: 14px;
}

body.font-md {
  font-size: 16px;
}

body.font-lg {
  font-size: 18px;
}

body.font-xl {
  font-size: 20px;
}

/* Bookmark icon */
.bookmark-btn {
  transition: all 0.2s ease;
}

.bookmark-btn svg {
  transition: all 0.2s ease;
}

.bookmark-btn.bookmarked svg {
  fill: #f59e0b;
  stroke: #f59e0b;
  color: #f59e0b;
}

.bookmark-btn:active {
  transform: scale(0.95);
}

/* Print styles */
@media print {
  nav, footer, button, #timerDisplay, .no-print {
    display: none !important;
  }
  body {
    background: white;
    color: black;
  }
  .question-card {
    break-inside: avoid;
    page-break-inside: avoid;
  }
}