/* ===================================================
   PuzzleVault Design System — global.css
   =================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
}

input, button, textarea, select {
  font: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

/* --- Design Tokens (CSS Variables) --- */
:root {
  /* Primary game colors */
  --pv-blue: #2563EB;
  --pv-coral: #F43F5E;
  --pv-emerald: #059669;
  --pv-amber: #D97706;
  --pv-violet: #7C3AED;
  --pv-cyan: #0891B2;
  --pv-pink: #DB2777;
  --pv-lime: #65A30D;
  --pv-slate: #475569;
  --pv-orange: #EA580C;

  /* Pastel variants (for game pieces) */
  --pv-p-sky: #93C5FD;
  --pv-p-rose: #FCA5A5;
  --pv-p-mint: #86EFAC;
  --pv-p-cream: #FDE68A;
  --pv-p-lavender: #C4B5FD;
  --pv-p-blush: #FBCFE8;

  /* Backgrounds */
  --pv-bg-light: #F8FAFC;
  --pv-bg-dark: #0F172A;
  --pv-grid-bg: #E2E8F0;
  --pv-grid-dark: #1E293B;
  --pv-card-bg: #FFFFFF;

  /* Feedback colors */
  --pv-correct: #059669;
  --pv-wrong: #F43F5E;
  --pv-hint: #D97706;

  /* Typography & Layout */
  --pv-text: #1E293B;
  --pv-text-secondary: #64748B;
  --pv-border: #E2E8F0;
  --pv-radius: 12px;
  --pv-radius-sm: 6px;
  --pv-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  --pv-shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.15);

  /* Font stack */
  --pv-font: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Spacing scale */
  --pv-space-xs: 4px;
  --pv-space-sm: 8px;
  --pv-space-md: 16px;
  --pv-space-lg: 24px;
  --pv-space-xl: 32px;
  --pv-space-2xl: 48px;
}

/* --- Dark Mode --- */
@media (prefers-color-scheme: dark) {
  :root {
    --pv-bg-light: #0F172A;
    --pv-bg-dark: #020617;
    --pv-grid-bg: #1E293B;
    --pv-card-bg: #1E293B;
    --pv-text: #F1F5F9;
    --pv-text-secondary: #94A3B8;
    --pv-border: #334155;
    --pv-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    --pv-shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.4);
  }
}

/* --- Base Typography --- */
body {
  font-family: var(--pv-font);
  color: var(--pv-text);
  background-color: var(--pv-bg-light);
}

h1, h2, h3, h4, h5, h6 {
  line-height: 1.2;
  font-weight: 700;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.125rem; }

p {
  color: var(--pv-text-secondary);
  line-height: 1.7;
}

/* --- Layout --- */
.pv-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--pv-space-md);
}

.pv-section {
  padding: var(--pv-space-2xl) 0;
}

/* --- Header --- */
.pv-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--pv-card-bg);
  border-bottom: 1px solid var(--pv-border);
  box-shadow: var(--pv-shadow);
  backdrop-filter: blur(8px);
}

.pv-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--pv-space-sm) var(--pv-space-md);
  height: 56px;
}

.pv-logo {
  display: flex;
  align-items: center;
  gap: var(--pv-space-sm);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--pv-text);
}

.pv-logo-icon {
  font-size: 1.5rem;
}

.pv-nav {
  display: flex;
  align-items: center;
  gap: var(--pv-space-lg);
}

.pv-nav a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--pv-text-secondary);
  transition: color 0.2s ease;
  position: relative;
}

.pv-nav a:hover,
.pv-nav a.active {
  color: var(--pv-blue);
}

.pv-nav a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--pv-blue);
  border-radius: 1px;
}

/* Mobile menu toggle */
.pv-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--pv-text);
  padding: var(--pv-space-xs);
}

@media (max-width: 768px) {
  .pv-nav {
    display: none;
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--pv-card-bg);
    border-bottom: 1px solid var(--pv-border);
    padding: var(--pv-space-md);
    gap: var(--pv-space-md);
    box-shadow: var(--pv-shadow-lg);
  }

  .pv-nav.open {
    display: flex;
  }

  .pv-menu-toggle {
    display: block;
  }
}

/* --- Footer --- */
.pv-footer {
  background: var(--pv-card-bg);
  border-top: 1px solid var(--pv-border);
  padding: var(--pv-space-xl) var(--pv-space-md);
  margin-top: var(--pv-space-2xl);
}

.pv-footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--pv-space-md);
  text-align: center;
}

.pv-footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--pv-space-md);
}

.pv-footer-links a {
  font-size: 0.85rem;
  color: var(--pv-text-secondary);
  transition: color 0.2s ease;
}

.pv-footer-links a:hover {
  color: var(--pv-blue);
}

.pv-footer-copy {
  font-size: 0.8rem;
  color: var(--pv-text-secondary);
}

/* --- Buttons --- */
.pv-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--pv-space-sm);
  padding: 10px 20px;
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  border-radius: var(--pv-radius);
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

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

.pv-btn-primary {
  background: var(--pv-blue);
  color: #fff;
}

.pv-btn-primary:hover {
  background: #1D4ED8;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.pv-btn-secondary {
  background: var(--pv-grid-bg);
  color: var(--pv-text);
}

.pv-btn-secondary:hover {
  background: var(--pv-border);
}

.pv-btn-success {
  background: var(--pv-emerald);
  color: #fff;
}

.pv-btn-success:hover {
  background: #047857;
}

.pv-btn-danger {
  background: var(--pv-coral);
  color: #fff;
}

.pv-btn-danger:hover {
  background: #E11D48;
}

.pv-btn-ghost {
  background: transparent;
  color: var(--pv-text-secondary);
  border: 1px solid var(--pv-border);
}

.pv-btn-ghost:hover {
  background: var(--pv-grid-bg);
  color: var(--pv-text);
}

.pv-btn-sm {
  padding: 6px 14px;
  font-size: 0.85rem;
  border-radius: var(--pv-radius-sm);
}

.pv-btn-lg {
  padding: 14px 28px;
  font-size: 1.1rem;
}

.pv-btn-icon {
  padding: 8px;
  min-width: 40px;
  min-height: 40px;
  border-radius: 50%;
}

/* Ripple effect for buttons */
.pv-btn .ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: scale(0);
  animation: ripple 0.6s linear;
  pointer-events: none;
}

/* --- Cards --- */
.pv-card {
  background: var(--pv-card-bg);
  border-radius: var(--pv-radius);
  box-shadow: var(--pv-shadow);
  border: 1px solid var(--pv-border);
  padding: var(--pv-space-lg);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.pv-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--pv-shadow-lg);
}

.pv-card-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: var(--pv-space-sm);
}

.pv-card-desc {
  font-size: 0.9rem;
  color: var(--pv-text-secondary);
  line-height: 1.5;
}

/* Game card (for cross-promo & landing page) */
.pv-game-card {
  display: flex;
  flex-direction: column;
  background: var(--pv-card-bg);
  border-radius: var(--pv-radius);
  box-shadow: var(--pv-shadow);
  border: 1px solid var(--pv-border);
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  cursor: pointer;
  text-decoration: none;
}

.pv-game-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--pv-shadow-lg);
}

.pv-game-card-icon {
  font-size: 3rem;
  text-align: center;
  padding: var(--pv-space-lg) 0 var(--pv-space-sm);
}

.pv-game-card-body {
  padding: var(--pv-space-sm) var(--pv-space-md) var(--pv-space-lg);
  text-align: center;
}

.pv-game-card-name {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: var(--pv-space-xs);
}

.pv-game-card-tagline {
  font-size: 0.8rem;
  color: var(--pv-text-secondary);
}

/* Games grid */
.pv-games-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--pv-space-md);
}

@media (min-width: 480px) {
  .pv-games-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 768px) {
  .pv-games-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 1024px) {
  .pv-games-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}

/* --- Toast --- */
.pv-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--pv-text);
  color: var(--pv-bg-light);
  padding: 10px 24px;
  border-radius: 100px;
  font-size: 0.9rem;
  font-weight: 500;
  z-index: 9999;
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
  pointer-events: none;
  white-space: nowrap;
  box-shadow: var(--pv-shadow-lg);
}

.pv-toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* --- Modal --- */
.pv-modal {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 500;
  padding: var(--pv-space-md);
}

.pv-modal.open {
  display: flex;
}

.pv-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
}

.pv-modal-content {
  position: relative;
  background: var(--pv-card-bg);
  border-radius: var(--pv-radius);
  box-shadow: var(--pv-shadow-lg);
  padding: var(--pv-space-xl);
  max-width: 420px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  animation: scaleIn 0.25s ease;
}

.pv-modal-close {
  position: absolute;
  top: var(--pv-space-sm);
  right: var(--pv-space-sm);
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--pv-text-secondary);
  padding: var(--pv-space-xs);
  line-height: 1;
}

.pv-modal-close:hover {
  color: var(--pv-text);
}

/* --- Overlay (fullscreen) --- */
.pv-overlay {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(6px);
  z-index: 400;
  padding: var(--pv-space-md);
}

.pv-overlay.open {
  display: flex;
}

/* --- Game Layout --- */
.game-container {
  width: 100%;
  max-width: 500px;
  margin: 0 auto;
  padding: var(--pv-space-md);
}

.game-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--pv-space-sm) 0;
  margin-bottom: var(--pv-space-md);
}

.game-title {
  display: flex;
  align-items: center;
  gap: var(--pv-space-sm);
  font-size: 1.3rem;
  font-weight: 800;
}

.game-title-icon {
  font-size: 1.5rem;
}

.game-actions {
  display: flex;
  gap: var(--pv-space-sm);
}

.game-canvas-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  background: var(--pv-grid-bg);
  border-radius: var(--pv-radius);
  overflow: hidden;
  box-shadow: var(--pv-shadow);
  touch-action: none;
}

.game-canvas-wrapper canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.game-controls {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--pv-space-sm);
  padding: var(--pv-space-md) 0;
}

.game-stats-bar {
  display: flex;
  justify-content: space-around;
  padding: var(--pv-space-sm);
  background: var(--pv-card-bg);
  border-radius: var(--pv-radius-sm);
  border: 1px solid var(--pv-border);
  margin-bottom: var(--pv-space-md);
}

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

.game-stat-value {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--pv-text);
}

.game-stat-label {
  font-size: 0.7rem;
  color: var(--pv-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Game layout with sidebar ad (desktop) */
.game-page-layout {
  display: flex;
  justify-content: center;
  gap: var(--pv-space-lg);
  max-width: 900px;
  margin: 0 auto;
  padding: 0 var(--pv-space-md);
}

.game-page-main {
  flex: 1;
  max-width: 500px;
}

.game-page-sidebar {
  width: 300px;
  flex-shrink: 0;
  display: none;
}

@media (min-width: 1024px) {
  .game-page-sidebar {
    display: block;
  }
}

/* --- Result Overlay --- */
.result-overlay {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  z-index: 300;
  padding: var(--pv-space-md);
}

.result-overlay.open {
  display: flex;
}

.result-card {
  background: var(--pv-card-bg);
  border-radius: var(--pv-radius);
  box-shadow: var(--pv-shadow-lg);
  padding: var(--pv-space-xl);
  max-width: 380px;
  width: 100%;
  text-align: center;
  animation: scaleIn 0.35s ease;
}

.result-icon {
  font-size: 3rem;
  margin-bottom: var(--pv-space-md);
}

.result-title {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: var(--pv-space-sm);
}

.result-score {
  font-size: 2rem;
  font-weight: 800;
  color: var(--pv-blue);
  margin-bottom: var(--pv-space-md);
}

.result-stats {
  display: flex;
  justify-content: center;
  gap: var(--pv-space-lg);
  margin-bottom: var(--pv-space-lg);
  padding-bottom: var(--pv-space-lg);
  border-bottom: 1px solid var(--pv-border);
}

.result-stat-item {
  text-align: center;
}

.result-stat-value {
  font-size: 1.1rem;
  font-weight: 700;
}

.result-stat-label {
  font-size: 0.75rem;
  color: var(--pv-text-secondary);
}

.result-actions {
  display: flex;
  gap: var(--pv-space-sm);
  justify-content: center;
  flex-wrap: wrap;
}

/* Distribution bar chart (for NumVault etc.) */
.result-distribution {
  margin-bottom: var(--pv-space-lg);
}

.result-dist-row {
  display: flex;
  align-items: center;
  gap: var(--pv-space-sm);
  margin-bottom: var(--pv-space-xs);
}

.result-dist-label {
  width: 16px;
  text-align: right;
  font-size: 0.8rem;
  font-weight: 600;
}

.result-dist-bar {
  height: 20px;
  background: var(--pv-grid-bg);
  border-radius: 4px;
  min-width: 24px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 6px;
  font-size: 0.7rem;
  font-weight: 700;
  color: #fff;
  transition: width 0.5s ease;
}

.result-dist-bar.current {
  background: var(--pv-blue);
}

/* --- Ad Slots --- */
.ad-slot {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--pv-grid-bg);
  border: 2px dashed var(--pv-border);
  border-radius: var(--pv-radius-sm);
  color: var(--pv-text-secondary);
  font-size: 0.8rem;
  text-align: center;
  overflow: hidden;
  min-height: 90px;
}

.ad-slot::before {
  content: 'Ad';
  opacity: 0.4;
  font-weight: 600;
}

#ad-sidebar {
  width: 300px;
  min-height: 250px;
}

#ad-bottom {
  max-width: 728px;
  width: 100%;
  min-height: 90px;
  margin: var(--pv-space-xl) auto;
}

#ad-interstitial {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  z-index: 9000;
  flex-direction: column;
  gap: var(--pv-space-md);
}

#ad-interstitial .ad-close-btn {
  position: absolute;
  top: var(--pv-space-md);
  right: var(--pv-space-md);
  background: rgba(255, 255, 255, 0.2);
  border: none;
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

#ad-reward {
  min-height: 50px;
  max-width: 300px;
}

/* --- Guide / How to Play --- */
.game-guide {
  max-width: 700px;
  margin: var(--pv-space-2xl) auto;
  padding: 0 var(--pv-space-md);
}

.game-guide h2 {
  margin-bottom: var(--pv-space-md);
}

.game-guide p {
  margin-bottom: var(--pv-space-md);
}

/* --- FAQ Accordion --- */
.pv-faq {
  max-width: 700px;
  margin: var(--pv-space-xl) auto;
  padding: 0 var(--pv-space-md);
}

.pv-faq details {
  border: 1px solid var(--pv-border);
  border-radius: var(--pv-radius-sm);
  margin-bottom: var(--pv-space-sm);
  overflow: hidden;
}

.pv-faq summary {
  padding: var(--pv-space-md);
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.pv-faq summary::-webkit-details-marker {
  display: none;
}

.pv-faq summary::after {
  content: '+';
  font-size: 1.2rem;
  font-weight: 300;
  color: var(--pv-text-secondary);
  transition: transform 0.2s ease;
}

.pv-faq details[open] summary::after {
  content: '−';
}

.pv-faq details p {
  padding: 0 var(--pv-space-md) var(--pv-space-md);
  font-size: 0.9rem;
}

/* --- Cross Promo Section --- */
.cross-promo {
  max-width: 700px;
  margin: var(--pv-space-xl) auto;
  padding: 0 var(--pv-space-md);
}

.cross-promo h2 {
  text-align: center;
  margin-bottom: var(--pv-space-lg);
}

.cross-promo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--pv-space-md);
}

@media (max-width: 480px) {
  .cross-promo-grid {
    grid-template-columns: 1fr;
  }
}

/* --- Utilities --- */
.text-center { text-align: center; }
.text-left { text-align: left; }
.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}
.gap-sm { gap: var(--pv-space-sm); }
.gap-md { gap: var(--pv-space-md); }
.mt-md { margin-top: var(--pv-space-md); }
.mt-lg { margin-top: var(--pv-space-lg); }
.mb-md { margin-bottom: var(--pv-space-md); }
.mb-lg { margin-bottom: var(--pv-space-lg); }
.hidden { display: none !important; }

/* Streak badge */
.pv-streak {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: linear-gradient(135deg, var(--pv-amber), var(--pv-orange));
  color: #fff;
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 700;
}

/* Mode selector tabs */
.pv-tabs {
  display: flex;
  gap: 2px;
  background: var(--pv-grid-bg);
  border-radius: var(--pv-radius);
  padding: 3px;
}

.pv-tab {
  flex: 1;
  padding: 8px 16px;
  text-align: center;
  font-size: 0.85rem;
  font-weight: 600;
  border: none;
  background: transparent;
  cursor: pointer;
  border-radius: calc(var(--pv-radius) - 3px);
  color: var(--pv-text-secondary);
  transition: all 0.2s ease;
}

.pv-tab.active {
  background: var(--pv-card-bg);
  color: var(--pv-text);
  box-shadow: var(--pv-shadow);
}

/* --- Blog --- */
.blog-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pv-space-md);
}

@media (min-width: 768px) {
  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .blog-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.blog-card {
  background: var(--pv-card-bg);
  border: 1px solid var(--pv-border);
  border-radius: var(--pv-radius);
  padding: var(--pv-space-lg);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.blog-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--pv-shadow-lg);
}

.blog-card-category {
  display: inline-block;
  background: var(--pv-blue);
  color: #fff;
  padding: 2px 10px;
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--pv-space-sm);
}

.blog-card-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: var(--pv-space-sm);
  line-height: 1.3;
}

.blog-card-desc {
  font-size: 0.85rem;
  color: var(--pv-text-secondary);
  margin-bottom: var(--pv-space-md);
  line-height: 1.5;
}

.blog-card-meta {
  font-size: 0.75rem;
  color: var(--pv-text-secondary);
}

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

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

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

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

@keyframes ripple {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  10%, 30%, 50%, 70%, 90% { transform: translateX(-4px); }
  20%, 40%, 60%, 80% { transform: translateX(4px); }
}

@keyframes sparkle {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.95); }
}

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

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

/* Animation utility classes */
.anim-fade-in { animation: fadeIn 0.3s ease; }
.anim-scale-in { animation: scaleIn 0.3s ease; }
.anim-slide-up { animation: slideUp 0.3s ease; }
.anim-pulse { animation: pulse 1.5s ease infinite; }
.anim-shake { animation: shake 0.5s ease; }