/**
 * Bay Area Golf - Unified Animation System
 * Classic golf aesthetic with modern polish
 *
 * Timing tokens:
 * - instant: 100ms (micro-interactions)
 * - fast: 200ms (hovers, small transitions)
 * - normal: 350ms (card animations, reveals)
 * - slow: 500ms (page transitions, large elements)
 * - stagger: 50ms (list item delays)
 *
 * Easing tokens:
 * - ease-out: cubic-bezier(0.33, 1, 0.68, 1) - entrances
 * - ease-in-out: cubic-bezier(0.65, 0, 0.35, 1) - interactions
 * - spring: cubic-bezier(0.34, 1.56, 0.64, 1) - playful bounces
 * - smooth: cubic-bezier(0.4, 0, 0.2, 1) - general purpose
 */

:root {
  /* Animation timing */
  --anim-instant: 100ms;
  --anim-fast: 200ms;
  --anim-normal: 350ms;
  --anim-slow: 500ms;
  --anim-stagger: 50ms;

  /* Easing curves */
  --ease-out: cubic-bezier(0.33, 1, 0.68, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);

  /* Shadow levels */
  --shadow-sm: 0 1px 3px rgba(61, 41, 20, 0.08);
  --shadow-md: 0 4px 12px rgba(61, 41, 20, 0.12);
  --shadow-lg: 0 8px 24px rgba(61, 41, 20, 0.16);
  --shadow-xl: 0 16px 48px rgba(61, 41, 20, 0.2);

  /* Glow effects for focus states */
  --glow-primary: 0 0 0 3px rgba(45, 90, 39, 0.15);
  --glow-gold: 0 0 0 3px rgba(184, 134, 11, 0.2);
}

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

/* Fade in from below - primary entrance */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Fade in from above */
@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Scale in with fade */
@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Slide in from left */
@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Slide in from right */
@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Gentle pulse for loading states */
@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.6;
  }
}

/* Shimmer effect for skeleton loading */
@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

/* Subtle float for featured items */
@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-4px);
  }
}

/* Spin for loading indicators */
@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* Ripple effect for buttons */
@keyframes ripple {
  0% {
    transform: scale(0);
    opacity: 0.5;
  }
  100% {
    transform: scale(4);
    opacity: 0;
  }
}

/* Golf ball bounce */
@keyframes bounce {
  0%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-8px);
  }
  60% {
    transform: translateY(-4px);
  }
}

/* ===== UTILITY CLASSES ===== */

/* Entrance animations */
.anim-fade-in-up {
  animation: fadeInUp var(--anim-normal) var(--ease-out) forwards;
}

.anim-fade-in-down {
  animation: fadeInDown var(--anim-normal) var(--ease-out) forwards;
}

.anim-scale-in {
  animation: scaleIn var(--anim-normal) var(--ease-out) forwards;
}

.anim-slide-left {
  animation: slideInLeft var(--anim-normal) var(--ease-out) forwards;
}

.anim-slide-right {
  animation: slideInRight var(--anim-normal) var(--ease-out) forwards;
}

/* Staggered children - apply to parent */
.anim-stagger > * {
  opacity: 0;
  animation: fadeInUp var(--anim-normal) var(--ease-out) forwards;
}

.anim-stagger > *:nth-child(1) { animation-delay: calc(var(--anim-stagger) * 1); }
.anim-stagger > *:nth-child(2) { animation-delay: calc(var(--anim-stagger) * 2); }
.anim-stagger > *:nth-child(3) { animation-delay: calc(var(--anim-stagger) * 3); }
.anim-stagger > *:nth-child(4) { animation-delay: calc(var(--anim-stagger) * 4); }
.anim-stagger > *:nth-child(5) { animation-delay: calc(var(--anim-stagger) * 5); }
.anim-stagger > *:nth-child(6) { animation-delay: calc(var(--anim-stagger) * 6); }
.anim-stagger > *:nth-child(7) { animation-delay: calc(var(--anim-stagger) * 7); }
.anim-stagger > *:nth-child(8) { animation-delay: calc(var(--anim-stagger) * 8); }
.anim-stagger > *:nth-child(9) { animation-delay: calc(var(--anim-stagger) * 9); }
.anim-stagger > *:nth-child(10) { animation-delay: calc(var(--anim-stagger) * 10); }
.anim-stagger > *:nth-child(n+11) { animation-delay: calc(var(--anim-stagger) * 10); }

/* Hover lift effect */
.hover-lift {
  transition: transform var(--anim-fast) var(--ease-out),
              box-shadow var(--anim-fast) var(--ease-out);
}

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

/* Hover glow */
.hover-glow {
  transition: box-shadow var(--anim-fast) var(--ease-out);
}

.hover-glow:hover {
  box-shadow: var(--glow-primary);
}

/* Button press effect */
.press-effect {
  transition: transform var(--anim-instant) var(--ease-out);
}

.press-effect:active {
  transform: scale(0.97);
}

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

/* Card hover states */
.card-animated {
  transition: transform var(--anim-fast) var(--ease-out),
              box-shadow var(--anim-fast) var(--ease-out),
              border-color var(--anim-fast) var(--ease-out);
}

.card-animated:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

/* Button animations */
.btn-animated {
  position: relative;
  overflow: hidden;
  transition: all var(--anim-fast) var(--ease-out);
}

.btn-animated::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    120deg,
    transparent 30%,
    rgba(255, 255, 255, 0.2) 50%,
    transparent 70%
  );
  transform: translateX(-100%);
  transition: transform var(--anim-slow) var(--ease-out);
}

.btn-animated:hover::after {
  transform: translateX(100%);
}

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

/* Tab/chip active state */
.tab-animated {
  position: relative;
  transition: all var(--anim-fast) var(--ease-out);
}

.tab-animated::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: currentColor;
  transition: all var(--anim-fast) var(--ease-out);
  transform: translateX(-50%);
}

.tab-animated.active::before,
.tab-animated:hover::before {
  width: 80%;
}

/* Loading skeleton */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--border-light) 25%,
    var(--bg-paper) 50%,
    var(--border-light) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite linear;
  border-radius: 4px;
}

/* Spinner */
.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid var(--border-light);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* Floating featured badge */
.featured-float {
  animation: float 3s ease-in-out infinite;
}

/* Pulse notification */
.pulse-dot {
  position: relative;
}

.pulse-dot::after {
  content: '';
  position: absolute;
  top: -2px;
  right: -2px;
  width: 8px;
  height: 8px;
  background: var(--deal);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

/* ===== PAGE TRANSITIONS ===== */

.page-enter {
  animation: fadeInUp var(--anim-slow) var(--ease-out) forwards;
}

.section-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all var(--anim-slow) var(--ease-out);
}

.section-reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== SPECIALIZED GOLF ELEMENTS ===== */

/* Tee time slot entrance */
.tee-slot-enter {
  opacity: 0;
  transform: translateY(20px) scale(0.98);
  animation: fadeInUp var(--anim-normal) var(--ease-out) forwards;
}

/* Course chip hover */
.course-chip-animated {
  transition: all var(--anim-fast) var(--ease-out);
  transform-origin: center;
}

.course-chip-animated:hover {
  transform: translateY(-3px) scale(1.01);
  box-shadow: var(--shadow-md);
}

/* Price pop */
.price-animated {
  transition: transform var(--anim-fast) var(--ease-spring);
}

.price-animated:hover {
  transform: scale(1.1);
}

/* Staff pick badge */
.staff-pick-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  background: linear-gradient(135deg, #b8860b, #daa520);
  color: white;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  box-shadow: 0 2px 8px rgba(184, 134, 11, 0.3);
  animation: float 4s ease-in-out infinite;
}

.staff-pick-badge svg {
  animation: bounce 2s ease-in-out infinite;
}

/* Leaderboard row animation */
.leaderboard-row {
  transition: all var(--anim-fast) var(--ease-out);
}

.leaderboard-row:hover {
  background: rgba(45, 90, 39, 0.05);
  transform: translateX(4px);
}

/* Activity feed item */
.activity-item {
  opacity: 0;
  animation: slideInLeft var(--anim-normal) var(--ease-out) forwards;
}

/* Passport stamp effect */
.passport-stamp {
  transition: all var(--anim-fast) var(--ease-spring);
}

.passport-stamp:hover {
  transform: rotate(-3deg) scale(1.05);
}

.passport-stamp.collected {
  animation: scaleIn var(--anim-normal) var(--ease-spring) forwards;
}

/* Weather widget */
.weather-animated {
  transition: all var(--anim-fast) var(--ease-out);
}

.weather-animated:hover {
  box-shadow: var(--shadow-md);
}

/* Form input focus */
.input-animated {
  transition: all var(--anim-fast) var(--ease-out);
}

.input-animated:focus {
  border-color: var(--primary);
  box-shadow: var(--glow-primary);
  transform: translateY(-1px);
}

/* Modal animations */
.modal-backdrop {
  opacity: 0;
  transition: opacity var(--anim-normal) var(--ease-out);
}

.modal-backdrop.visible {
  opacity: 1;
}

.modal-content {
  opacity: 0;
  transform: translateY(20px) scale(0.97);
  transition: all var(--anim-normal) var(--ease-out);
}

.modal-backdrop.visible .modal-content {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* ===== REDUCED MOTION ===== */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}