/* ============================================
   ANIMATIONS.CSS
   Scroll-triggered reveals, transitions, and
   micro-interaction keyframes for Iyyah Designs.
   Uses IntersectionObserver (see animations.js).
============================================ */

/* --- Reveal base state (invisible before JS animates in) --- */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delays for grid children */
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.reveal-stagger.visible > *:nth-child(1) { transition-delay: 0.05s; opacity: 1; transform: none; }
.reveal-stagger.visible > *:nth-child(2) { transition-delay: 0.12s; opacity: 1; transform: none; }
.reveal-stagger.visible > *:nth-child(3) { transition-delay: 0.19s; opacity: 1; transform: none; }
.reveal-stagger.visible > *:nth-child(4) { transition-delay: 0.26s; opacity: 1; transform: none; }
.reveal-stagger.visible > *:nth-child(5) { transition-delay: 0.33s; opacity: 1; transform: none; }
.reveal-stagger.visible > *:nth-child(6) { transition-delay: 0.40s; opacity: 1; transform: none; }
.reveal-stagger.visible > *:nth-child(n+7) { transition-delay: 0.47s; opacity: 1; transform: none; }

/* Slide from left */
.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal-left.visible { opacity: 1; transform: translateX(0); }

/* Slide from right */
.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal-right.visible { opacity: 1; transform: translateX(0); }

/* Scale up */
.reveal-scale {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal-scale.visible { opacity: 1; transform: scale(1); }

/* --- Page transition overlay --- */
.page-transition {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 9999;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.page-transition.out {
  opacity: 1;
  pointer-events: all;
}

/* --- Button ripple --- */
.btn { position: relative; overflow: hidden; }
.ripple {
  position: absolute;
  border-radius: 50%;
  transform: scale(0);
  animation: rippleOut 0.6s linear;
  background: rgba(255,255,255,0.3);
  pointer-events: none;
}
@keyframes rippleOut {
  to { transform: scale(4); opacity: 0; }
}

/* --- Image skeleton / blur-up --- */
.img-wrap {
  position: relative;
  overflow: hidden;
  background: var(--bg-alt);
}
.img-wrap img {
  transition: filter 0.4s ease, opacity 0.4s ease;
  filter: blur(8px);
  opacity: 0;
}
.img-wrap img.loaded {
  filter: blur(0);
  opacity: 1;
}
.img-skeleton {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    var(--bg-alt) 0%,
    var(--surface-2) 40%,
    var(--bg-alt) 80%
  );
  background-size: 200% 100%;
  animation: shimmer 1.6s infinite;
}
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* --- Parallax hero --- */
.hero-parallax-layer {
  will-change: transform;
}

/* --- Gold line draw animation --- */
.line-draw {
  width: 0;
  height: 1px;
  background: linear-gradient(to right, var(--gold), var(--gold-light));
  transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.2s;
}
.line-draw.visible { width: 100%; }

/* --- Counter number animation --- */
.count-up {
  font-variant-numeric: tabular-nums;
}

/* --- Hover lift enhancement --- */
.hover-lift {
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
              box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.hover-lift:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(26,20,16,0.15);
}

/* --- Underline animation for nav links --- */
.nav-link {
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  right: 50%;
  height: 2px;
  background: var(--gold);
  transition: left 0.3s ease, right 0.3s ease;
  border-radius: 1px;
}
.nav-link:hover::after,
.nav-link.active::after {
  left: 0.875rem;
  right: 0.875rem;
}

/* --- Announcement bar pause on hover --- */
.announcement-track {
  animation-play-state: running;
}
.announcement-bar:hover .announcement-track {
  animation-play-state: paused;
}

/* --- Smooth page load fade-in --- */
@keyframes pageFadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
main {
  animation: pageFadeIn 0.5s ease forwards;
}

/* --- Section title underline decoration --- */
h2.decorated::after {
  content: '';
  display: block;
  width: 48px;
  height: 2px;
  background: var(--gold);
  margin: 0.75rem auto 0;
  border-radius: 1px;
}

/* --- Gold ornament divider (enhanced) --- */
.ornament {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 1.5rem 0;
  color: var(--gold);
  opacity: 0.7;
}
.ornament::before,
.ornament::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--gold-border), transparent);
}
.ornament-text { font-size: 1.1rem; }

/* --- Scroll progress bar --- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  background: linear-gradient(to right, var(--gold), var(--rose));
  z-index: 2000;
  width: 0%;
  transition: width 0.1s linear;
}

/* --- Focus styles (accessibility) --- */
:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
  border-radius: 2px;
}

/* --- Text selection color --- */
::selection {
  background: var(--gold-light);
  color: var(--text-primary);
}

/* --- Smooth scroll --- */
html { scroll-behavior: smooth; }

/* --- Print styles --- */
@media print {
  .navbar, .footer, .whatsapp-float, .announcement-bar { display: none !important; }
  main { animation: none; }
}