/* ============================================
   TRAVVANA — Skeleton Loading Animations
   ============================================ */

.skeleton {
  position: relative;
  overflow: hidden;
  background: var(--clr-bg-tertiary);
  border-radius: var(--radius-md);
}

.skeleton::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--clr-bg-surface) 50%,
    transparent 100%
  );
  animation: skeleton-shimmer 1.5s infinite;
}

@keyframes skeleton-shimmer {
  0%   { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* ── Skeleton Variants ── */
.skeleton--text {
  height: 14px;
  width: 100%;
  border-radius: var(--radius-sm);
}

.skeleton--text-sm {
  height: 12px;
  width: 60%;
  border-radius: var(--radius-sm);
}

.skeleton--title {
  height: 20px;
  width: 75%;
  border-radius: var(--radius-sm);
}

.skeleton--circle {
  border-radius: 50%;
}

.skeleton--card {
  border-radius: var(--radius-lg);
  border: 1px solid var(--clr-border);
}

/* ── Skeleton Card Layout ── */
.skeleton-card {
  border-radius: var(--radius-lg);
  border: 1px solid var(--clr-border);
  overflow: hidden;
  background: var(--clr-bg-card);
}

.skeleton-card__image {
  aspect-ratio: 4 / 3;
  background: var(--clr-bg-tertiary);
  position: relative;
  overflow: hidden;
}

.skeleton-card__image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--clr-bg-surface) 50%,
    transparent 100%
  );
  animation: skeleton-shimmer 1.5s infinite;
}

.skeleton-card__body {
  padding: var(--sp-3) var(--sp-4) var(--sp-4);
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}

/* ── State card skeleton ── */
.skeleton-card--state .skeleton-card__image {
  aspect-ratio: 16 / 10;
}

/* ── Hero skeleton ── */
.skeleton-hero {
  min-height: 320px;
  background: var(--clr-bg-tertiary);
  position: relative;
  overflow: hidden;
}

.skeleton-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--clr-bg-surface) 50%,
    transparent 100%
  );
  animation: skeleton-shimmer 2s infinite;
}

/* ── Skeleton Grid ── */
.skeleton-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-3);
}

@media (min-width: 768px) {
  .skeleton-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1024px) {
  .skeleton-grid { grid-template-columns: repeat(4, 1fr); }
}

/* ── Fade in transition ── */
.fade-in {
  animation: fadeIn 0.4s var(--ease-out) forwards;
}

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

/* ── Staggered children ── */
.stagger-children > * {
  opacity: 0;
  animation: fadeIn 0.4s var(--ease-out) forwards;
}

.stagger-children > *:nth-child(1)  { animation-delay: 0ms; }
.stagger-children > *:nth-child(2)  { animation-delay: 50ms; }
.stagger-children > *:nth-child(3)  { animation-delay: 100ms; }
.stagger-children > *:nth-child(4)  { animation-delay: 150ms; }
.stagger-children > *:nth-child(5)  { animation-delay: 200ms; }
.stagger-children > *:nth-child(6)  { animation-delay: 250ms; }
.stagger-children > *:nth-child(7)  { animation-delay: 300ms; }
.stagger-children > *:nth-child(8)  { animation-delay: 350ms; }
.stagger-children > *:nth-child(9)  { animation-delay: 400ms; }
.stagger-children > *:nth-child(10) { animation-delay: 450ms; }
.stagger-children > *:nth-child(11) { animation-delay: 500ms; }
.stagger-children > *:nth-child(12) { animation-delay: 550ms; }