/* ==========================================================================
   ABOUT SRI LANKA -- v15.0 "One Island, Every Journey" (Sathwin Tours)
   Kandyan Lotus light theme. Class prefix: sas- (Sathwin About Sri Lanka).
   Every colour, font, radius and shadow is a main.css token.
   ========================================================================== */

.sas-section {
  position: relative;
  padding: var(--spacing-16) 0 var(--spacing-14);
  background: var(--bg-primary);
  overflow: hidden;
}

[data-sas-reveal] { opacity: 0; transform: translateY(26px); transition: opacity 900ms var(--ease-premium), transform 900ms var(--ease-premium); }
[data-sas-reveal].is-visible { opacity: 1; transform: none; }

/* ---------- Header ---------- */
.sas-header { max-width: 50rem; margin: 0 auto var(--spacing-8); text-align: center; }
.sas-eyebrow {
  display: inline-flex; align-items: center; gap: var(--spacing-3);
  font-family: var(--font-wordmark); font-size: var(--text-xs); font-weight: var(--font-weight-semibold);
  letter-spacing: var(--ls-widest); text-transform: uppercase; color: var(--color-gold-text);
  margin-bottom: var(--spacing-3);
}
.sas-eyebrow::before,
.sas-eyebrow::after { content: ""; width: 26px; height: 1px; background: var(--color-antique-gold); }
.sas-heading {
  font-family: var(--font-display); font-weight: var(--font-weight-normal);
  font-size: clamp(var(--text-4xl), 4vw, var(--text-6xl));
  line-height: var(--leading-tight); color: var(--color-night-maroon);
  margin: 0 0 var(--spacing-3);
}
.sas-heading em { font-style: italic; color: var(--color-maroon); }
.sas-intro { font-family: var(--font-primary); font-size: var(--text-md); line-height: var(--leading-relaxed); color: var(--text-muted); margin: 0 auto; max-width: 44rem; }

/* ---------- Bento ---------- */
.sas-grid {
  display: grid;
  grid-template-columns: 1.9fr 1.2fr 1fr;
  grid-template-rows: repeat(6, 1fr);
  gap: var(--spacing-3);
  height: 600px;
}
.sas-cell {
  position: relative;
  display: block;
  border-radius: var(--radius-lg);
  overflow: hidden;
  isolation: isolate;
  color: var(--photo-text);
  text-decoration: none;
  box-shadow: var(--shadow-md);
  background: var(--color-sand);
  transition: transform 600ms var(--ease-premium), box-shadow 600ms var(--ease-premium);
}
.sas-cell:hover,
.sas-cell:focus-visible { color: var(--photo-text); transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
.sas-cell:focus-visible { outline: 2px solid var(--color-antique-gold); outline-offset: 3px; }
.sas-cell::after {
  content: "";
  position: absolute; inset: 0; z-index: 3;
  border-radius: inherit;
  box-shadow: inset 0 0 0 1px rgba(var(--color-champagne-rgb), 0);
  transition: box-shadow 600ms var(--ease-premium);
  pointer-events: none;
}
.sas-cell:hover::after { box-shadow: inset 0 0 0 1px rgba(var(--color-champagne-rgb), .85); }

.sas-cell--large { grid-column: 1; grid-row: 1 / 7; }
.sas-cell--med1  { grid-column: 2; grid-row: 1 / 4; }
.sas-cell--med2  { grid-column: 2; grid-row: 4 / 7; }
.sas-cell--sm1   { grid-column: 3; grid-row: 1 / 3; }
.sas-cell--sm2   { grid-column: 3; grid-row: 3 / 5; }
.sas-cell--sm3   { grid-column: 3; grid-row: 5 / 7; }

/* Crossfade stack with a slow zoom on the visible photo */
.sas-cell__stack { position: absolute; inset: 0; z-index: 0; }
.sas-slide {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: 0;
  transform: scale(1.02);
  transition: opacity 1600ms ease, transform 9000ms linear;
}
.sas-slide.is-active { opacity: 1; transform: scale(1.12); }
.sas-cell:hover .sas-slide.is-active { transition: opacity 1600ms ease, transform 4000ms var(--ease-premium); transform: scale(1.16); }

.sas-cell__shade { position: absolute; inset: 0; z-index: 1; background: var(--photo-shade-bottom); pointer-events: none; }
.sas-cell--large .sas-cell__shade { background: linear-gradient(180deg, rgba(var(--color-scrim-rgb), 0) 30%, rgba(var(--color-scrim-rgb), .55) 58%, rgba(var(--color-scrim-rgb), .9) 100%); }

.sas-cell__body {
  position: absolute; left: 0; right: 0; bottom: 0; z-index: 2;
  display: flex; flex-direction: column; align-items: flex-start; gap: var(--spacing-2);
  padding: var(--spacing-4);
}
.sas-cell--large .sas-cell__body { padding: var(--spacing-8); gap: var(--spacing-3); }
.sas-cell__tag {
  display: inline-flex; align-items: center; gap: var(--spacing-2);
  padding: .32rem .75rem;
  font-family: var(--font-wordmark); font-size: .66rem; font-weight: var(--font-weight-semibold);
  letter-spacing: var(--ls-wide); text-transform: uppercase;
  color: var(--photo-text);
  background: var(--photo-chip-bg);
  border: 1px solid var(--photo-chip-border);
  border-radius: var(--radius-full);
  backdrop-filter: var(--photo-chip-blur);
  -webkit-backdrop-filter: var(--photo-chip-blur);
}
.sas-cell__tag i { color: var(--photo-accent); }
.sas-cell__title {
  font-family: var(--font-display); font-weight: var(--font-weight-medium);
  font-size: var(--text-xl); line-height: var(--leading-tight);
  text-shadow: var(--photo-text-shadow);
}
.sas-cell--large .sas-cell__title { font-size: clamp(var(--text-3xl), 2.8vw, var(--text-5xl)); }
.sas-cell__text {
  font-family: var(--font-primary); font-size: var(--text-sm); line-height: var(--leading-relaxed);
  color: var(--photo-text-soft); max-width: 32rem; text-shadow: var(--photo-text-shadow);
}
.sas-cell__cta {
  display: inline-flex; align-items: center; gap: var(--spacing-2);
  font-family: var(--font-primary); font-size: var(--text-xs); font-weight: var(--font-weight-semibold);
  letter-spacing: var(--ls-wider); text-transform: uppercase;
  color: var(--photo-accent); text-shadow: var(--photo-text-shadow);
}
.sas-cell__cta i { transition: transform 400ms var(--ease-premium); }
.sas-cell:hover .sas-cell__cta i { transform: translateX(5px); }
.sas-cell--large .sas-cell__cta {
  padding: var(--spacing-3) var(--spacing-6);
  border-radius: var(--radius-xs);
  background: var(--gradient-gilt);
  color: var(--color-lacquer);
  text-shadow: none;
  box-shadow: var(--hdr-gold-btn-shadow);
  font-family: var(--font-wordmark);
}

/* ---------- Facts ---------- */
.sas-facts {
  display: grid;
  grid-template-columns: repeat(4, 1fr) auto;
  align-items: center;
  margin-top: var(--spacing-6);
  padding: var(--spacing-5) var(--spacing-6);
  background: var(--color-shell);
  border: 1px solid rgba(var(--color-champagne-rgb), .35);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.sas-fact { display: flex; flex-direction: column; align-items: center; text-align: center; padding: 0 var(--spacing-3); }
.sas-fact + .sas-fact { border-left: 1px solid var(--border-primary); }
.sas-fact__num {
  font-family: var(--font-display); font-size: var(--text-4xl); font-weight: var(--font-weight-medium);
  line-height: 1; color: var(--color-maroon); font-variant-numeric: lining-nums tabular-nums;
}
.sas-fact__label { margin-top: var(--spacing-1); font-family: var(--font-primary); font-size: var(--text-xs); letter-spacing: var(--ls-wide); text-transform: uppercase; color: var(--text-muted); }
.sas-facts__link {
  display: inline-flex; align-items: center; gap: var(--spacing-2);
  margin-left: var(--spacing-4);
  padding: var(--spacing-3) var(--spacing-6);
  border-radius: var(--radius-xs);
  background: var(--gradient-lacquer);
  color: var(--color-on-dark);
  font-family: var(--font-wordmark); font-size: var(--text-xs); font-weight: var(--font-weight-semibold);
  letter-spacing: var(--ls-wider); text-transform: uppercase;
  text-decoration: none; white-space: nowrap;
  transition: transform 400ms var(--ease-premium), box-shadow 400ms var(--ease-premium);
}
.sas-facts__link:hover { color: var(--color-gold-on-dark); transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.sas-facts__link i { transition: transform 400ms var(--ease-premium); }
.sas-facts__link:hover i { transform: translateX(4px); }

/* ---------- Responsive ---------- */
@media (max-width: 1200px) { .sas-grid { height: 540px; } }
@media (max-width: 992px) {
  .sas-grid { height: 480px; grid-template-columns: 1.6fr 1.1fr 1fr; }
  .sas-cell__text { display: none; }
  .sas-facts { grid-template-columns: repeat(4, 1fr); row-gap: var(--spacing-4); }
  .sas-facts__link { grid-column: 1 / -1; justify-self: center; margin: 0; }
}
@media (max-width: 768px) {
  .sas-section { padding: var(--spacing-12) 0 var(--spacing-10); }
  .sas-grid {
    display: flex; height: auto; overflow-x: auto; scroll-snap-type: x mandatory;
    margin: 0 calc(var(--spacing-4) * -1); padding: var(--spacing-1) var(--spacing-4) var(--spacing-3);
    scrollbar-width: none;
  }
  .sas-grid::-webkit-scrollbar { display: none; }
  .sas-cell { flex: 0 0 78vw; height: 300px; scroll-snap-align: center; }
  .sas-cell--large { flex-basis: 86vw; height: 360px; }
  .sas-cell--large .sas-cell__body { padding: var(--spacing-5); }
  .sas-cell--large .sas-cell__text { display: block; }
  .sas-facts { grid-template-columns: repeat(2, 1fr); padding: var(--spacing-4); }
  .sas-fact:nth-child(3) { border-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  [data-sas-reveal] { opacity: 1; transform: none; transition: none; }
  .sas-slide, .sas-slide.is-active { transition: none; transform: none; }
  .sas-cell, .sas-cell__cta i, .sas-facts__link { transition: none; }
}