/* ============================================================
   CJ Grande by Sterling Hotels & Resorts — ANIMATIONS
   Scroll-driven · Parallax · Micro-interactions
   ============================================================ */

/* ── Keyframes ──────────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(40px); }
  to   { opacity: 1; transform: translateY(0); }
}

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

@keyframes fadeLeft {
  from { opacity: 0; transform: translateX(-32px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes fadeRight {
  from { opacity: 0; transform: translateX(32px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.95); }
  to   { opacity: 1; transform: scale(1); }
}

@keyframes shimmer {
  0%   { background-position: -1000px 0; }
  100% { background-position: 1000px 0; }
}

@keyframes goldPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(201,169,110,0); }
  50%       { box-shadow: 0 0 0 8px rgba(201,169,110,0.12); }
}

@keyframes lineGrow {
  from { transform: scaleX(0); }
  to   { transform: scaleX(1); }
}

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

/* ── Scroll-driven base state (hidden before Intersection) ─── */
.fade-up,
.fade-in,
.fade-left,
.fade-right,
.scale-in {
  opacity: 0;
  will-change: opacity, transform;
}

/* ── Animated state (applied by IntersectionObserver) ──────── */
.fade-up.animated {
  animation: fadeUp var(--dur-slow) var(--ease) both;
}

.fade-in.animated {
  animation: fadeIn var(--dur-slow) var(--ease) both;
}

.fade-left.animated {
  animation: fadeLeft var(--dur-slow) var(--ease) both;
}

.fade-right.animated {
  animation: fadeRight var(--dur-slow) var(--ease) both;
}

.scale-in.animated {
  animation: scaleIn var(--dur-slow) var(--ease) both;
}

/* ── Stagger delays (for grids / lists) ─────────────────────── */
.stagger-1 { animation-delay: 0.08s !important; }
.stagger-2 { animation-delay: 0.16s !important; }
.stagger-3 { animation-delay: 0.24s !important; }
.stagger-4 { animation-delay: 0.32s !important; }
.stagger-5 { animation-delay: 0.40s !important; }
.stagger-6 { animation-delay: 0.48s !important; }

/* ── Hero text entrance ─────────────────────────────────────── */
.hero__label  { animation: fadeUp 0.8s 0.1s var(--ease) both; }
.hero__title  { animation: fadeUp 1.0s 0.25s var(--ease) both; }
.hero__subtitle { animation: fadeUp 0.8s 0.45s var(--ease) both; }
.hero__actions  { animation: fadeUp 0.8s 0.6s var(--ease) both; }
.hero__scroll   { animation: fadeIn 1s 1.2s var(--ease) both; }

/* ── Navbar entrance ────────────────────────────────────────── */
.nav { animation: fadeIn 0.6s 0.1s var(--ease) both; }

/* ── Gold divider animation ─────────────────────────────────── */
.gold-divider {
  transform-origin: left;
}

.gold-divider.animated {
  animation: lineGrow 0.6s var(--ease) both;
}

.gold-divider--center {
  transform-origin: center;
}

/* ── Card hover effects ─────────────────────────────────────── */
.room-card {
  transition:
    transform var(--dur-base) var(--ease),
    box-shadow var(--dur-base) var(--ease);
}

.room-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 32px 80px rgba(26,22,18,0.16);
}

/* ── Amenity item pulse on hover ────────────────────────────── */
.amenity-item {
  transition:
    background var(--dur-base) var(--ease),
    transform var(--dur-base) var(--ease);
}

.amenity-item:hover {
  transform: translateY(-4px);
}

/* ── Button ripple effect ────────────────────────────────────── */
.btn {
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  transform: translate(-50%, -50%);
  transition: width 0.5s var(--ease), height 0.5s var(--ease);
}

.btn:active::before {
  width: 300px;
  height: 300px;
}

/* ── Booking bar shimmer (loading state) ─────────────────────── */
.booking-bar.loading .booking-bar__field-value {
  background: linear-gradient(90deg, var(--clr-cream) 25%, var(--clr-ivory) 50%, var(--clr-cream) 75%);
  background-size: 1000px 100%;
  animation: shimmer 2s infinite linear;
  color: transparent;
  border-radius: 2px;
}

/* ── Image reveal (zoom-out on load) ────────────────────────── */
.img-reveal {
  overflow: hidden;
}

.img-reveal img {
  transform: scale(1.08);
  transition: transform 1.2s var(--ease);
}

.img-reveal.animated img {
  transform: scale(1);
}

/* ── Number counter animation ────────────────────────────────── */
.counter-value {
  display: inline-block;
  transition: opacity 0.3s var(--ease);
}

/* ── Scroll indicator pulse ─────────────────────────────────── */
.hero__scroll-line {
  animation: scrollLine 2s ease-in-out infinite;
}

/* ── Page transition (applied to body on nav) ───────────────── */
.page-transition-out {
  animation: fadeIn 0.3s reverse var(--ease) both;
}

.page-transition-in {
  animation: fadeIn 0.4s var(--ease) both;
}

/* ── Lightbox open/close ─────────────────────────────────────── */
.lightbox .lightbox__img {
  animation: scaleIn 0.35s var(--ease) both;
}

/* ── Modal open animation ────────────────────────────────────── */
.modal-overlay.open .modal {
  animation: fadeUp 0.4s var(--ease) both;
}

/* ── Dot nav active transition ──────────────────────────────── */
.carousel-dot {
  transition: width 0.4s var(--ease), background 0.4s var(--ease);
}

/* ── Reduce motion (accessibility) ─────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .fade-up,
  .fade-in,
  .fade-left,
  .fade-right,
  .scale-in {
    opacity: 1;
    transform: none;
  }

  .hero__label,
  .hero__title,
  .hero__subtitle,
  .hero__actions,
  .hero__scroll {
    animation: none;
    opacity: 1;
  }

  .hero__bg img {
    transform: none !important;
  }
}