/* Animations — theme */

:root {
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --duration-normal: 0.35s;
  --duration-slow: 0.6s;
  --glow-gold: 0 0 12px rgba(212, 168, 67, 0.35);
}

.page {
  animation: pageEnter var(--duration-slow) var(--ease-out) both;
}

.content {
  animation: contentRise var(--duration-slow) var(--ease-out) 0.08s both;
}

.sidebar {
  animation: sidebarSlide var(--duration-slow) var(--ease-out) 0.04s both;
}

@keyframes pageEnter {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes contentRise {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

.header__star {
  animation: starPulse 3s ease-in-out infinite;
}

.header__star--right {
  animation-delay: 1.5s;
}

@keyframes starPulse {
  0%, 100% { opacity: 0.7; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.1); }
}

.nav__compass {
  transition: transform var(--duration-normal) var(--ease-out);
}

.nav__head:hover .nav__compass {
  transform: rotate(15deg) scale(1.05);
}

.nav-list__link {
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
}

.nav-list__link.is-active {
  box-shadow: var(--glow-gold);
}

.nav-list__icon {
  transition: transform 0.2s var(--ease-out);
}

.nav-list__link:hover .nav-list__icon {
  transform: scale(1.1);
}

.card,
.book-card,
.hero-card,
.note-card,
.passport-card,
.trial-card,
.kit-card,
.book-picker__btn {
  transition: transform var(--duration-normal) var(--ease-out), box-shadow var(--duration-normal) var(--ease-out);
}

.card:hover,
.book-card:hover,
.hero-card:hover,
.note-card:hover,
.passport-card:hover,
.trial-card:hover,
.kit-card:hover,
.book-picker__btn:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.book-catalog__item,
.hero-list__item,
.cards-list__item,
.passports-list__item,
.trials-list__item,
.kit-list__item {
  animation: cardAppear var(--duration-slow) var(--ease-out) both;
}

.book-catalog__item:nth-child(1),
.hero-list__item:nth-child(1),
.cards-list__item:nth-child(1) { animation-delay: 0.05s; }

.book-catalog__item:nth-child(2),
.hero-list__item:nth-child(2),
.cards-list__item:nth-child(2) { animation-delay: 0.1s; }

.book-catalog__item:nth-child(3),
.hero-list__item:nth-child(3),
.cards-list__item:nth-child(3) { animation-delay: 0.15s; }

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

.btn,
.expedition-route__link {
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}

.btn--primary:hover,
.btn--secondary:hover {
  transform: translateY(-1px);
}

.hero-card__photo,
.book-card__cover-img {
  transition: filter var(--duration-normal) var(--ease-out);
}

.hero-card:hover .hero-card__photo,
.book-card:hover .book-card__cover-img {
  filter: brightness(1.04) saturate(1.05);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}