/* Animations: Transitions and interaction states */

/* FLOATING GLASSES */
.floating-glasses {
  animation: gentleFloat 6s ease-in-out infinite;
}

@keyframes gentleFloat {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  25% { transform: translateY(-8px) rotate(0.5deg); }
  50% { transform: translateY(-4px) rotate(-0.5deg); }
  75% { transform: translateY(-10px) rotate(0.3deg); }
}

/* Fade up initial load */
.anim-fade-up {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.8s ease-out forwards;
}

.anim-delay-1 { animation-delay: 0.15s; }
.anim-delay-2 { animation-delay: 0.3s; }
.anim-delay-3 { animation-delay: 0.45s; }
.anim-delay-4 { animation-delay: 0.6s; }

@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* SCROLL REVEAL */
.anim-reveal {
  opacity: 0;
  transform: translateY(24px);
  filter: blur(2px);
  transition: opacity 0.7s ease-out, transform 0.7s ease-out, filter 0.7s ease-out;
}

.anim-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

/* Staggered reveal for cards */
.thought-card,
.journal-card {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out, box-shadow var(--transition-base), border-color var(--transition-base);
}

.thought-card.revealed,
.journal-card.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* CARD HOVER EFFECTS */
.thought-card {
  transition: transform var(--transition-base),
              box-shadow var(--transition-base),
              border-color var(--transition-base),
              opacity 0.5s ease-out;
}

.thought-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--border-hover);
}

.thought-card:active {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* BUTTON HOVER */
.btn-primary {
  transition: background var(--transition-fast),
              transform var(--transition-fast),
              box-shadow var(--transition-fast);
}

.btn-primary:active {
  transform: translateY(0);
}

/* PILL TRANSITION */
.pill {
  transition: background var(--transition-fast),
              color var(--transition-fast),
              border-color var(--transition-fast),
              transform var(--transition-fast);
}

.pill:active {
  transform: scale(0.96);
}

/* MODAL ANIMATIONS */
.modal-overlay {
  transition: opacity 0.35s ease;
}

.modal-content {
  transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1),
              opacity 0.35s ease;
}

/* NAVBAR SCROLL */
.navbar {
  transition: border-color var(--transition-base),
              box-shadow var(--transition-base),
              background var(--transition-base);
}

/* SOCIAL LINKS */
.social-link {
  transition: color var(--transition-fast),
              border-color var(--transition-fast),
              transform var(--transition-fast),
              box-shadow var(--transition-fast);
}

.social-link:active {
  transform: translateY(0) scale(0.95);
}

/* HAMBURGER ANIMATION */
.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(4px, 4px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(4px, -4px);
}

/* SEARCH FOCUS */
.search-box {
  transition: border-color var(--transition-fast),
              box-shadow var(--transition-fast),
              transform var(--transition-fast);
}

.search-box:focus-within {
  transform: translateY(-1px);
}

/* FEATURED THOUGHT */
.featured-thought {
  transition: transform var(--transition-base),
              box-shadow var(--transition-base);
}

.featured-thought:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* LENS EFFECT */
/* Decorative "looking through a lens" effect for featured quote */
.featured-quote::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(139, 157, 175, 0.03) 0%, transparent 70%);
  pointer-events: none;
  z-index: -1;
}

/* LOADING SKELETON */
@keyframes shimmer {
  0% { background-position: -200px 0; }
  100% { background-position: 200px 0; }
}

.skeleton {
  background: linear-gradient(90deg, var(--bg-secondary) 25%, var(--border) 50%, var(--bg-secondary) 75%);
  background-size: 400px 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-sm);
}

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

  .floating-glasses {
    animation: none;
  }

  .anim-fade-up {
    opacity: 1;
    transform: none;
    animation: none;
  }

  .anim-reveal {
    opacity: 1;
    transform: none;
    filter: none;
  }

  .thought-card,
  .journal-card {
    opacity: 1;
    transform: none;
  }

  html {
    scroll-behavior: auto;
  }
}