:root {
  --bg-1: #171428;
  --bg-2: #33224a;
  --card: rgba(255, 255, 255, 0.12);
  --card-strong: rgba(255, 255, 255, 0.18);
  --text: #fff9f2;
  --muted: rgba(255, 249, 242, 0.76);
  --accent: #ffd166;
  --accent-2: #8ecae6;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  --radius: 28px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html, body { min-height: 100%; }
body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 10% 10%, rgba(255, 209, 102, 0.22), transparent 28rem),
    radial-gradient(circle at 90% 20%, rgba(142, 202, 230, 0.18), transparent 30rem),
    linear-gradient(140deg, var(--bg-1), var(--bg-2));
  overflow-x: hidden;
}

.ambient {
  position: fixed;
  width: 38vmax;
  height: 38vmax;
  border-radius: 50%;
  filter: blur(30px);
  opacity: 0.22;
  pointer-events: none;
  z-index: 0;
}
.ambient-one { background: #ffb703; left: -16vmax; bottom: -16vmax; }
.ambient-two { background: #219ebc; right: -14vmax; top: 8vmax; }

.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  align-items: center;
  padding: 1rem clamp(1rem, 4vw, 2.5rem);
}

.ghost-button, .controls button, .detail-actions a {
  border: 1px solid rgba(255,255,255,0.28);
  background: rgba(255,255,255,0.12);
  color: var(--text);
  backdrop-filter: blur(14px);
  border-radius: 999px;
  text-decoration: none;
  box-shadow: 0 12px 40px rgba(0,0,0,0.18);
}

.ghost-button {
  cursor: pointer;
  padding: .72rem 1rem;
  font-weight: 700;
}

.progress {
  height: .38rem;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(255,255,255,0.16);
}
.progress span {
  display: block;
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width 260ms ease;
}

.deck {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 5.4rem clamp(1rem, 4vw, 3rem) 6.5rem;
}

.slide {
  width: min(1120px, 100%);
  min-height: min(760px, calc(100vh - 12rem));
  display: grid;
  grid-template-columns: minmax(260px, 0.9fr) minmax(320px, 1.35fr);
  gap: clamp(1rem, 3vw, 2rem);
  align-items: stretch;
  background: var(--card);
  border: 1px solid rgba(255,255,255,0.20);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: clamp(1rem, 3vw, 2rem);
  backdrop-filter: blur(18px);
  animation: cardIn 360ms ease both;
}

@keyframes cardIn {
  from { opacity: 0; transform: translateY(18px) scale(.985); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1.1rem;
  padding: clamp(.4rem, 1.5vw, 1rem);
}
.eyebrow {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: .18em;
  font-size: .78rem;
  font-weight: 800;
  margin: 0;
}
h1, h2 {
  margin: 0;
  line-height: .95;
  text-wrap: balance;
}
h1 { font-size: clamp(3.4rem, 9vw, 7.2rem); }
h2 { font-size: clamp(2.8rem, 7vw, 5.5rem); }
.copy p {
  margin: 0;
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.35rem);
  line-height: 1.5;
}

.photo-grid {
  display: grid;
  gap: .75rem;
  min-height: 420px;
}
.photo-grid.count-1, .photo-grid.single-photo { grid-template-columns: 1fr; }
.photo-grid.count-2 { grid-template-columns: repeat(2, 1fr); }
.photo-grid.count-3 { grid-template-columns: 1.2fr .8fr; grid-template-rows: repeat(2, 1fr); }
.photo-grid.count-3 .photo-tile:first-child { grid-row: span 2; }
.photo-grid.count-4, .photo-grid.count-5 { grid-template-columns: repeat(2, 1fr); }
.photo-grid.count-5 .photo-tile:first-child { grid-row: span 2; }

.photo-tile, .scan-placeholder {
  min-height: 160px;
  overflow: hidden;
  border-radius: calc(var(--radius) - 10px);
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.16);
}
.photo-tile img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: var(--photo-position, center center);
  transform: scale(var(--photo-zoom, 1.02));
}
.food-note {
  margin: 1.4rem 0 0;
  color: var(--accent);
  font-weight: 800;
  font-size: clamp(1.05rem, 2vw, 1.35rem);
}
.photo-grid.single-photo .scan-placeholder,
.photo-grid.single-photo .photo-tile {
  min-height: min(560px, 58vh);
}
.scan-placeholder {
  display: grid;
  place-items: center;
  padding: 1.2rem;
  text-align: center;
  color: rgba(255,255,255,.72);
  border-style: dashed;
}
.scan-placeholder strong { color: var(--text); display: block; margin-bottom: .35rem; }

.details-slide {
  grid-template-columns: 1fr;
  text-align: center;
  place-items: center;
}
.details-card {
  width: min(820px, 100%);
  background: rgba(255,255,255,0.10);
  border: 1px solid rgba(255,255,255,0.22);
  border-radius: var(--radius);
  padding: clamp(1.4rem, 5vw, 3.5rem);
}
.details-card h1 { font-size: clamp(3.2rem, 8vw, 6rem); margin-bottom: .6rem; }
.details-card .school { color: var(--accent); font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.event-line { font-size: clamp(1.3rem, 3vw, 2rem); margin: 1.8rem 0 .2rem; font-weight: 800; }
.address { color: var(--muted); font-size: clamp(1.05rem, 2vw, 1.35rem); line-height: 1.55; }
.detail-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .75rem;
  margin-top: 2rem;
}
.detail-actions a { padding: .85rem 1.1rem; font-weight: 800; }

.controls {
  position: fixed;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: .65rem;
  border-radius: 999px;
  background: rgba(0,0,0,0.16);
  backdrop-filter: blur(12px);
}
.controls button {
  width: 2.7rem;
  height: 2.7rem;
  font-size: 1.7rem;
  line-height: 1;
  cursor: pointer;
}
.dots { display: flex; gap: .42rem; }
.dot {
  width: .64rem;
  height: .64rem;
  border-radius: 999px;
  border: 0;
  padding: 0;
  background: rgba(255,255,255,0.34);
  cursor: pointer;
}
.dot.active { width: 1.8rem; background: var(--accent); }

.loading-card { grid-template-columns: 1fr; place-items: center; }

@media (max-width: 800px) {
  .topbar { grid-template-columns: 1fr; }
  .slide { grid-template-columns: 1fr; min-height: auto; }
  .copy { text-align: center; }
  .photo-grid { min-height: 360px; }
  .photo-grid.count-3, .photo-grid.count-4, .photo-grid.count-5 { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 540px) {
  .deck { padding-left: .75rem; padding-right: .75rem; }
  .slide { padding: .8rem; border-radius: 22px; }
  .photo-grid { gap: .55rem; min-height: 280px; }
  .photo-tile, .scan-placeholder { min-height: 120px; border-radius: 16px; }
  .controls { width: calc(100% - 1.4rem); justify-content: space-between; }
  .dots { max-width: 58vw; overflow: hidden; }
}