/* ========================================
   KDK MAALIGAI — Animations & Transitions
   ======================================== */

/* ── Keyframes ── */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeInDown { from { opacity: 0; transform: translateY(-20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeInLeft { from { opacity: 0; transform: translateX(-30px); } to { opacity: 1; transform: translateX(0); } }
@keyframes fadeInRight { from { opacity: 0; transform: translateX(30px); } to { opacity: 1; transform: translateX(0); } }
@keyframes slideInRight { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@keyframes slideOutRight { from { transform: translateX(0); opacity: 1; } to { transform: translateX(100%); opacity: 0; } }
@keyframes scaleIn { from { opacity: 0; transform: scale(0.9); } to { opacity: 1; transform: scale(1); } }
@keyframes shimmer { 0% { background-position: -200% 0; } 100% { background-position: 200% 0; } }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes bounce { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes floatSlow {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(3deg); }
}

@keyframes glowPulse {
  0%, 100% { box-shadow: 0 0 20px rgba(212,168,83,0.2); }
  50% { box-shadow: 0 0 40px rgba(212,168,83,0.4); }
}

@keyframes countDown {
  from { stroke-dashoffset: 0; }
  to { stroke-dashoffset: 283; }
}

@keyframes ripple {
  0% { transform: scale(0); opacity: 0.6; }
  100% { transform: scale(4); opacity: 0; }
}

/* ── Animation Classes ── */
.animate-fade-in { animation: fadeIn var(--duration-slow) var(--ease-out) both; }
.animate-fade-up { animation: fadeInUp var(--duration-slow) var(--ease-out) both; }
.animate-fade-down { animation: fadeInDown var(--duration-slow) var(--ease-out) both; }
.animate-fade-left { animation: fadeInLeft var(--duration-slow) var(--ease-out) both; }
.animate-fade-right { animation: fadeInRight var(--duration-slow) var(--ease-out) both; }
.animate-scale-in { animation: scaleIn var(--duration-slow) var(--ease-spring) both; }
.animate-bounce { animation: bounce 2s infinite; }
.animate-pulse { animation: pulse 2s infinite; }
.animate-spin { animation: spin 1s linear infinite; }
.animate-float { animation: floatSlow 6s ease-in-out infinite; }
.animate-glow { animation: glowPulse 3s ease-in-out infinite; }
.animate-gradient { background-size: 200% 200%; animation: gradientShift 8s ease infinite; }

/* Stagger Delays */
.delay-1 { animation-delay: 100ms; }
.delay-2 { animation-delay: 200ms; }
.delay-3 { animation-delay: 300ms; }
.delay-4 { animation-delay: 400ms; }
.delay-5 { animation-delay: 500ms; }
.delay-6 { animation-delay: 600ms; }
.delay-7 { animation-delay: 700ms; }
.delay-8 { animation-delay: 800ms; }

/* ── Scroll Reveal ── */
.reveal {
  opacity: 0; transform: translateY(40px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-left { opacity: 0; transform: translateX(-40px); transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out); }
.reveal-left.visible { opacity: 1; transform: translateX(0); }
.reveal-right { opacity: 0; transform: translateX(40px); transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out); }
.reveal-right.visible { opacity: 1; transform: translateX(0); }
.reveal-scale { opacity: 0; transform: scale(0.85); transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out); }
.reveal-scale.visible { opacity: 1; transform: scale(1); }

/* ── Hover Effects ── */
.hover-lift { transition: transform var(--duration-base) var(--ease-out), box-shadow var(--duration-base); }
.hover-lift:hover { transform: translateY(-6px); box-shadow: var(--shadow-xl); }

.hover-glow { transition: box-shadow var(--duration-base); }
.hover-glow:hover { box-shadow: var(--shadow-gold); }

.hover-scale { transition: transform var(--duration-base) var(--ease-spring); }
.hover-scale:hover { transform: scale(1.05); }

.hover-rotate { transition: transform var(--duration-slow) var(--ease-out); }
.hover-rotate:hover { transform: rotate(5deg) scale(1.05); }

/* Ripple Effect */
.ripple { position: relative; overflow: hidden; }
.ripple::before {
  content: ''; position: absolute; width: 100px; height: 100px;
  background: rgba(255,255,255,0.3); border-radius: 50%;
  transform: scale(0); pointer-events: none;
}
.ripple:active::before { animation: ripple 0.6s linear; }

/* ── Loading Spinner ── */
.spinner {
  width: 40px; height: 40px; border: 3px solid var(--border);
  border-top-color: var(--primary); border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
.spinner-sm { width: 20px; height: 20px; border-width: 2px; }
.spinner-lg { width: 56px; height: 56px; border-width: 4px; }
.spinner-gold { border-top-color: var(--accent); }

/* ── Loading Overlay ── */
.loading-overlay {
  position: fixed; inset: 0; background: var(--bg-overlay);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  z-index: var(--z-modal); gap: var(--space-4);
}
.loading-overlay .loading-text {
  color: white; font-weight: 500; font-size: var(--text-sm);
  animation: pulse 1.5s infinite;
}

/* ── Page Transitions ── */
.page-enter { animation: fadeInUp 0.5s var(--ease-out) both; }
.page-exit { animation: fadeIn 0.3s var(--ease-out) reverse both; }

/* ── Counter Animation ── */
.count-up {
  display: inline-block;
  font-variant-numeric: tabular-nums;
}

/* ── Carousel ── */
.carousel { position: relative; overflow: hidden; }
.carousel-track {
  display: flex; transition: transform 0.5s var(--ease-out);
  will-change: transform;
}
.carousel-slide { flex: 0 0 100%; }
.carousel-dots {
  display: flex; gap: var(--space-2); justify-content: center;
  margin-top: var(--space-4);
}
.carousel-dot {
  width: 8px; height: 8px; border-radius: var(--radius-full);
  background: var(--border); transition: all var(--duration-base);
}
.carousel-dot.active { background: var(--primary); width: 24px; }

.carousel-btn {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 44px; height: 44px; border-radius: var(--radius-full);
  background: var(--glass-bg); backdrop-filter: blur(10px);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-primary); border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-md); z-index: 2;
  transition: all var(--duration-fast);
}
.carousel-btn:hover { background: var(--bg-card); box-shadow: var(--shadow-lg); }
.carousel-btn.prev { left: var(--space-4); }
.carousel-btn.next { right: var(--space-4); }

/* ── Reduced Motion ── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal, .reveal-left, .reveal-right, .reveal-scale { opacity: 1; transform: none; }
}