:root {
  --nav-h: 64px;
}

.app {
  display: flex; flex-direction: column;
  height: 100dvh; overflow: hidden;
  position: relative;
}
.scrim {
  position: absolute;
  left: 0; right: 0;
  pointer-events: none;
  z-index: 120;
}
.scrim-top {
  top: 0; height: 150px;
  background: linear-gradient(180deg, var(--scrim-top) 0%, transparent 100%);
}
.scrim-bottom {
  bottom: 0; height: 200px;
  background: linear-gradient(0deg, var(--scrim-bottom) 0%, transparent 100%);
}

.header {
  padding: 34px 20px 14px;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 14px;
}
.header-eyebrow {
  align-self: flex-start;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--chip-bg);
  color: var(--chip-fg);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: -0.1px;
  line-height: 1.25;
}
.header-eyebrow[hidden] { display: none; }
.header-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px 32px;
  flex-wrap: wrap;
}
.header-left { flex: 1 1 260px; min-width: 0; }
.header-title {
  font-size: clamp(30px, 6.6vw, 68px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.03;
}
.header-desc {
  flex: 1 1 220px;
  max-width: 320px;
  margin-left: auto;
  padding-top: clamp(6px, 1.6vw, 22px);
  font-size: 14px;
  line-height: 1.45;
  color: var(--txt-2);
  text-align: right;
  letter-spacing: -0.1px;
}
.header-desc[hidden] { display: none; }
@media (max-width: 560px) {
  .header-desc { text-align: left; margin-left: 0; max-width: none; }
}
.header-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px 14px;
  margin-top: clamp(10px, 2.3vw, 24px);
  font-size: 13px;
  font-weight: 400;
  color: var(--txt-2);
  letter-spacing: -0.1px;
}
.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
}
.meta-item i {
  width: 14px; height: 14px;
  stroke-width: 2;
  color: var(--txt-3);
}

.scroll-area {
  flex: 1;
  overflow-y: auto; overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  overscroll-behavior-y: contain;
  padding-bottom: calc(var(--nav-h) + 48px);
}
.scroll-area::-webkit-scrollbar { display: none; }

.bottom-nav {
  position: fixed;
  bottom: max(20px, env(safe-area-inset-bottom));
  left: 0; right: 0;
  z-index: 200;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 0 20px;
  pointer-events: none;
  transition: opacity 250ms var(--smooth), transform 250ms var(--smooth), visibility 250ms;
}

.bottom-nav .normal-bar {
  display: flex;
  align-items: center;
  gap: 12px;
}
.bottom-nav .selection-bar { display: none; }

.bottom-nav.in-selection .normal-bar { display: none; }
.bottom-nav.in-selection .selection-bar { display: flex; }

.pill-base {
  display: flex;
  align-items: center;
  gap: 0;
  height: var(--nav-h);
  padding: 6px;
  border-radius: 32px;
  background: var(--clear-bg);
  backdrop-filter: blur(var(--clear-blur)) saturate(var(--clear-sat));
  -webkit-backdrop-filter: blur(var(--clear-blur)) saturate(var(--clear-sat));
  border: 1px solid var(--clear-border);
  box-shadow:
    var(--shadow),
    inset 0 1px 0 var(--clear-rim),
    inset 0 -1px 0 rgba(255,255,255,0.05),
    inset 1px 0 0 rgba(255,255,255,0.08),
    inset -1px 0 0 rgba(255,255,255,0.08);
  pointer-events: auto;
  touch-action: none;
}
.svg-refract .pill-base {
  backdrop-filter: blur(4px) saturate(var(--clear-sat));
  -webkit-backdrop-filter: blur(4px) saturate(var(--clear-sat));
}

.pill-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  min-width: 72px;
  height: 100%;
  padding: 6px 14px 4px;
  border-radius: 26px;
  color: var(--txt-2);
  transition: color 200ms, background 200ms, transform 200ms var(--spring);
  position: relative;
  touch-action: none;
}
.bottom-nav.dragging .pill-item,
.pill-item.pressed { will-change: transform; }
.pill-item i {
  width: 26px; height: 26px;
  stroke-width: 1.7;
  margin-bottom: 1px;
}
.pill-item .pill-label {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.2px;
  line-height: 1;
}
.pill-item.active {
  color: var(--blue);
  background: var(--pill-active);
}
.pill-item.active i { stroke-width: 2; }
.hide-in-gallery { display: none; }
body.view-not-gallery .hide-in-gallery { display: flex; }
@media (min-width: 1024px) {
  #tabPill .hide-in-gallery { display: flex; }
}

.menu-btn {
  width: var(--nav-h);
  height: var(--nav-h);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--clear-bg);
  backdrop-filter: blur(var(--clear-blur)) saturate(var(--clear-sat));
  -webkit-backdrop-filter: blur(var(--clear-blur)) saturate(var(--clear-sat));
  border: 1px solid var(--clear-border);
  box-shadow:
    var(--shadow),
    inset 0 1px 0 var(--clear-rim),
    inset 0 -1px 0 rgba(255,255,255,0.05),
    inset 1px 0 0 rgba(255,255,255,0.08),
    inset -1px 0 0 rgba(255,255,255,0.08);
  color: var(--txt-1);
  pointer-events: auto;
  transition: transform 200ms var(--spring), background 200ms;
  flex-shrink: 0;
}
.svg-refract .menu-btn {
  backdrop-filter: blur(4px) saturate(var(--clear-sat));
  -webkit-backdrop-filter: blur(4px) saturate(var(--clear-sat));
}
.menu-btn i { width: 24px; height: 24px; stroke-width: 2; }
.menu-btn:active {
  transform: scale(0.88);
  background: var(--pill-active);
}

body.view-not-gallery .menu-btn { display: none; }

@media (max-width: 1023px) {
  body.view-not-gallery .bottom-nav { padding: 0 8px; }
}

.bottom-nav.dragging .pill-item { transition: none; }

.pill-item.pressed {
  color: var(--txt-1);
  background: rgba(255,255,255,0.2);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.3);
  z-index: 20;
}
.pill-item.bounce { animation: pillBounce 450ms var(--spring); }

.coll-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px; padding: 0 12px 12px;
}
@media (min-width: 768px) { .coll-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1024px) { .coll-grid { grid-template-columns: repeat(4, 1fr); } }
.coll-card {
  border-radius: 14px; overflow: hidden;
  position: relative; aspect-ratio: 1;
  background: var(--bg-cell);
}
.coll-card img { width: 100%; height: 100%; object-fit: cover; display: block; }
.coll-info {
  position: absolute; bottom: 0; left: 0; right: 0;
  padding: 26px 10px 8px;
  background: linear-gradient(0deg, rgba(0,0,0,0.75), transparent);
  color: #fff;
}
.coll-title { font-size: 14px; font-weight: 600; }
.coll-count { font-size: 11px; opacity: 0.8; }

.app {
    max-width: 1100px; margin: 20px auto;
    border-radius: 20px;
    height: calc(100dvh - 40px);
  }
  .bottom-nav { position: absolute; bottom: 20px; }
  .header-controls { top: 42px; }