/* ============================================
   WaveWay x CHILL — Анимации и переходы
   ============================================ */

/* === Переходы страниц === */
.page-enter {
  animation: pageIn var(--transition-page) ease forwards;
}

.page-exit {
  animation: pageOut var(--transition-page) ease forwards;
}

@keyframes pageIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

/* === Toast === */
@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes toastOut {
  from {
    opacity: 1;
    transform: translateX(0);
  }
  to {
    opacity: 0;
    transform: translateX(40px);
  }
}

/* === Микро-анимации === */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

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

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

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* Утилиты анимаций */
.animate-fade-in { animation: fadeIn var(--transition-base) ease; }
.animate-fade-in-up { animation: fadeInUp var(--transition-slow) ease; }
.animate-scale-in { animation: scaleIn var(--transition-base) ease; }
.animate-pulse { animation: pulse 2s ease-in-out infinite; }

/* Задержки для каскадных анимаций */
.delay-1 { animation-delay: 50ms; }
.delay-2 { animation-delay: 100ms; }
.delay-3 { animation-delay: 150ms; }
.delay-4 { animation-delay: 200ms; }
.delay-5 { animation-delay: 250ms; }

/* === Плёночная текстура === */
.film-grain {
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 512px 512px;
  mix-blend-mode: overlay;
}

[data-theme="light"] .film-grain {
  opacity: 0.02;
  mix-blend-mode: multiply;
}

/* Дыхательная анимация (для медитаций) */
@keyframes breathe {
  0%, 100% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(1.3); opacity: 1; }
}

.animate-breathe {
  animation: breathe 6s ease-in-out infinite;
}

/* Уменьшение анимаций для пользователей с настройкой */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .film-grain { display: none; }
}