/* ============================================================
   ABOUT PAGE (about.css)
   - Hero
   - Responsive Luxe SNAP SLIDER (shows all photos; drag/swipe/arrow/dots/autoplay)
   - Timeline
   ============================================================ */

/* ----------------------- HERO ----------------------- */
.about-hero .hero-wrap {
  display: grid;
  align-items: center;
  min-height: 42vh;
}

.about-hero .about-copy h1 {
  margin: .5rem 0 0;
}

/* ----------------------- SNAP SLIDER (luxury) ----------------------- */
.ribbon-shell {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--silver-300);
  background:
    radial-gradient(120% 120% at 80% 10%, rgba(239, 210, 106, .12), transparent 70%),
    linear-gradient(180deg, #fff, var(--silver-200));
  box-shadow: var(--shadow);
  padding: clamp(10px, 1.6vw, 16px);
}

/* Scroll-snap track */
.ribbon {
  --gap: clamp(10px, 2vw, 24px);
  --aspect: 16/9;
  /* desktop default */
  display: flex;
  gap: var(--gap);
  align-items: center;
  padding: clamp(6px, 1vw, 10px);
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;
  scroll-padding-inline: 10px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  /* Firefox */
  scroll-behavior: smooth;
  mask-image: linear-gradient(to right, transparent 0, #000 6%, #000 94%, transparent 100%);
}

.ribbon::-webkit-scrollbar {
  display: none;
}

/* WebKit */

/* Slides */
.slide {
  position: relative;
  flex: 0 0 min(92vw, 1080px);
  /* show one, hint next/prev */
  aspect-ratio: var(--aspect);
  border-radius: 16px;
  overflow: hidden;
  scroll-snap-align: center;
  background: #fff;
  border: 1px solid var(--silver-300);
  box-shadow: 0 14px 36px rgba(12, 15, 20, .14), 0 4px 10px rgba(12, 15, 20, .06);
}

.slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .5s cubic-bezier(.22, .61, .36, 1), filter .35s ease;
  transform-origin: 60% 50%;
}

.ribbon:hover .slide img {
  filter: saturation(1.02) contrast(1.01);
}

.slide:hover {
  z-index: 2;
}

.slide:hover img {
  transform: scale(1.04);
}

/* Gold “sheen” layer (lux vibe) */
.sheen {
  position: absolute;
  inset: -20% -120%;
  background:
    linear-gradient(110deg, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 230, .55) 12%, rgba(255, 255, 255, 0) 24%) 0 0 / 40% 100% no-repeat,
    radial-gradient(60% 120% at 10% 20%, rgba(239, 210, 106, .20), transparent 60%);
  mix-blend-mode: screen;
  pointer-events: none;
  animation: sheen-sweep 36000ms linear infinite;
}

@keyframes sheen-sweep {
  from {
    transform: translateX(-20%);
  }

  to {
    transform: translateX(120%);
  }
}

/* Controls */
.ribbon-controls {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  pointer-events: none;
}

.rbtn {
  pointer-events: auto;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid var(--silver-300);
  background: linear-gradient(180deg, #fff, #fff9e6);
  color: var(--accent-ink);
  font-weight: 800;
  display: grid;
  place-items: center;
  box-shadow: 0 8px 18px rgba(12, 15, 20, .08);
  transition: transform .15s ease, box-shadow .2s ease, border-color .2s ease, opacity .2s ease;
}

.rbtn:hover {
  transform: translateY(-1px);
  border-color: var(--gold-500);
}

.rbtn:focus-visible {
  outline: none;
  box-shadow: var(--focus);
}

.prev {
  margin-left: 8px;
}

.next {
  margin-right: 8px;
}

/* Dots */
.dots {
  position: absolute;
  left: 50%;
  bottom: 6px;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .7);
  backdrop-filter: blur(6px);
  border: 1px solid var(--silver-300);
}

.dot {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: var(--silver-300);
  border: 1px solid var(--border);
  transition: transform .2s ease, background-color .2s ease, box-shadow .2s ease;
}

.dot[aria-selected="true"] {
  background: var(--gold-500);
  box-shadow: 0 0 0 3px rgba(239, 210, 106, .28);
  transform: scale(1.15);
}

/* Edge hint fades */
.ribbon-shell::before,
.ribbon-shell::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 40px;
  z-index: 2;
  pointer-events: none;
}

.ribbon-shell::before {
  left: 0;
  background: linear-gradient(to right, #fff, transparent);
  opacity: .9;
}

.ribbon-shell::after {
  right: 0;
  background: linear-gradient(to left, #fff, transparent);
  opacity: .9;
}

/* Responsive tuning */
@media (max-width: 880px) {
  .ribbon {
    --aspect: 4/3;
  }

  .rbtn {
    width: 40px;
    height: 40px;
  }
}

@media (max-width: 560px) {
  .ribbon {
    --aspect: 5/4;
  }

  .dots {
    bottom: 4px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .sheen {
    animation: none;
  }

  .slide img {
    transition: none !important;
  }
}

/* ----------------------- TIMELINE (luxury theme) ----------------------- */
#about-timeline .section-head h2 {
  margin-bottom: .25rem;
}

#about-timeline .section-head p {
  margin-top: 0;
}

.timeline {
  --tl-gold-600: var(--gold-600, #b8860b);
  --tl-gold-500: var(--gold-500, #c89b1c);
  --tl-gold-300: var(--gold-300, #efd26a);
  --tl-silver-300: var(--silver-300, #d9dde5);
  --tl-silver-200: var(--silver-200, #eef1f6);
  --tl-accent: var(--accent-solid, #c19213);
  --tl-rail: color-mix(in srgb, var(--tl-silver-300) 75%, #aeb6c2 25%);
  --tl-date-bg: #6f5200;
  --tl-date-shadow: 0 10px 22px rgba(200, 155, 28, .20);
  --tl-card-bg: #fff;
  --tl-card-bd: var(--tl-silver-300);
  --tl-gap: clamp(22px, 4vw, 40px);
  --tl-rail-w: 3px;

  display: grid;
  grid-template-columns: minmax(0, 1fr) var(--tl-rail-w) minmax(0, 1fr);
  column-gap: var(--tl-gap);
  row-gap: clamp(26px, 3.5vw, 54px);
  position: relative;
  list-style: none;
  margin: 0;
  padding: clamp(8px, 1.5vw, 16px);
}

.timeline .rail {
  grid-column: 2;
  grid-row: 1 / -1;
  background: linear-gradient(180deg, #9aa4b2 0%, var(--tl-rail) 40%, #9aa4b2 100%);
  border-radius: 2px;
  box-shadow: 0 0 0 1px rgba(12, 15, 20, .02) inset;
}

.tl-item {
  display: contents;
}

.tl-item>.marker {
  grid-column: 2;
  position: relative;
  display: grid;
  place-items: center;
  min-height: 32px;
}

.node {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #fff7d1 0%, var(--tl-gold-300) 40%, var(--tl-gold-600) 85%);
  box-shadow: 0 0 0 3px #fff, 0 2px 8px rgba(12, 15, 20, .12), 0 0 0 6px rgba(239, 210, 106, .28);
  transform: scale(.9);
  transition: transform .25s ease, box-shadow .3s ease, filter .25s ease;
}

.tl-item>.marker::after {
  content: "";
  position: absolute;
  top: 50%;
  height: 2px;
  width: calc(var(--tl-gap) + 26px);
  background: linear-gradient(90deg, var(--tl-gold-600), var(--tl-gold-300));
  transform: translateY(-50%);
  opacity: .95;
  transition: width .35s ease, opacity .25s ease;
}

.tl-item>.tl-card {
  grid-column: 1;
  align-self: center;
  background: var(--tl-card-bg);
  border: 1px solid var(--tl-card-bd);
  border-radius: 14px;
  padding: clamp(14px, 2vw, 18px) clamp(14px, 2vw, 20px);
  box-shadow: 0 10px 24px rgba(16, 24, 40, .08);
  position: relative;
  transform: translateY(10px);
  opacity: 0;
  transition: transform .45s cubic-bezier(.22, .61, .36, 1), opacity .45s ease,
    border-color .2s ease, box-shadow .2s ease, background-color .2s ease;
}

.tl-item:nth-of-type(even)>.tl-card {
  grid-column: 3;
}

.tl-item:nth-of-type(odd)>.marker::after {
  left: calc(-1 * (var(--tl-gap) + 26px));
}

.tl-item:nth-of-type(even)>.marker::after {
  right: calc(-1 * (var(--tl-gap) + 26px));
}

.tl-card h3 {
  margin: 0 0 .35rem;
  font-size: clamp(18px, 2vw, 22px);
  color: var(--tl-accent);
}

.tl-card p {
  margin: 0 0 .8rem;
  color: var(--text);
}

.tl-card small {
  display: inline-block;
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--tl-date-bg);
  color: #fff;
  font-weight: 700;
  letter-spacing: .1px;
  box-shadow: var(--tl-date-shadow);
  position: relative;
}

.tl-card small::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: linear-gradient(180deg, rgba(255, 255, 255, .18), rgba(255, 255, 255, 0));
  pointer-events: none;
}

.tl-card:hover {
  border-color: color-mix(in srgb, var(--tl-card-bd) 45%, var(--tl-gold-500) 55%);
  box-shadow: 0 14px 32px rgba(16, 24, 40, .12);
}

.tl-card:hover+.marker .node,
.marker:hover .node {
  transform: scale(1);
  filter: saturate(1.08);
  box-shadow: 0 0 0 3px #fff, 0 3px 10px rgba(12, 15, 20, .16), 0 0 0 8px rgba(239, 210, 106, .34);
}

/* Reveal */
.timeline.reveal.show .tl-item:nth-of-type(odd)>.tl-card {
  opacity: 1;
  transform: none;
  animation: tl-slide-left 560ms cubic-bezier(.22, .61, .36, 1) both;
}

.timeline.reveal.show .tl-item:nth-of-type(even)>.tl-card {
  opacity: 1;
  transform: none;
  animation: tl-slide-right 560ms cubic-bezier(.22, .61, .36, 1) both;
}

.timeline.reveal.show .marker::after {
  width: calc(var(--tl-gap) + 34px);
}

.timeline.reveal.show .tl-item:nth-of-type(1)>.tl-card {
  animation-delay: 60ms;
}

.timeline.reveal.show .tl-item:nth-of-type(2)>.tl-card {
  animation-delay: 140ms;
}

.timeline.reveal.show .tl-item:nth-of-type(3)>.tl-card {
  animation-delay: 220ms;
}

.timeline.reveal.show .tl-item:nth-of-type(4)>.tl-card {
  animation-delay: 300ms;
}

@keyframes tl-slide-left {
  from {
    transform: translate3d(-16px, 8px, 0);
    opacity: 0;
  }

  to {
    transform: none;
    opacity: 1;
  }
}

@keyframes tl-slide-right {
  from {
    transform: translate3d(16px, 8px, 0);
    opacity: 0;
  }

  to {
    transform: none;
    opacity: 1;
  }
}

@media (max-width:1000px) {
  .timeline {
    --tl-gap: clamp(18px, 3vw, 28px);
  }
}

@media (max-width:780px) {
  .timeline {
    grid-template-columns: var(--tl-rail-w) 1fr;
    column-gap: 14px;
  }

  .timeline .rail {
    grid-column: 1;
  }

  .tl-item>.marker {
    grid-column: 1;
    min-height: 26px;
  }

  .tl-item>.tl-card {
    grid-column: 2;
  }

  .tl-item:nth-of-type(even)>.tl-card {
    grid-column: 2;
  }

  .tl-item>.marker::after {
    left: 10px;
    right: auto;
    width: 16px;
    opacity: .85;
  }

  @keyframes tl-fade-up {
    from {
      opacity: 0;
      transform: translate3d(0, 10px, 0);
    }

    to {
      opacity: 1;
      transform: none;
    }
  }

  .timeline.reveal.show .tl-item>.tl-card {
    animation: tl-fade-up 520ms cubic-bezier(.22, .61, .36, 1) both;
  }
}

@media (prefers-reduced-motion: reduce) {

  .timeline .marker::after,
  .tl-card,
  .timeline.reveal.show .tl-item>.tl-card {
    transition: none !important;
    animation: none !important;
    transform: none !important;
    opacity: 1 !important;
  }
}