/* caelestia-inspired theme: dark purple surfaces, lavender primary, rounded everything */
:root {
  --bg: #11111b;
  --bg1: #181825;
  --bg2: #1e1e2e;
  --bg3: #313244;
  --text: #cdd6f4;
  --subtext: #a6adc8;
  --overlay: #6c7086;
  --lavender: #b4befe;
  --mauve: #cba6f7;
  --pink: #f5c2e7;
  --peach: #fab387;
  --red: #f38ba8;
  --radius: 18px;
  --radius-small: 12px;
}

* { box-sizing: border-box; }

/* the hidden attribute must always win over display rules below */
[hidden] { display: none !important; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Rubik", "Google Sans Flex", system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.45;
}

svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}
svg .fill { fill: currentColor; stroke: none; }

/* top bar */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 10px;
  height: 63px;
  padding: 0 18px;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid color-mix(in srgb, var(--bg3) 55%, transparent);
}

.brand {
  font-size: 19px;
  font-weight: 600;
  color: var(--mauve);
  text-decoration: none;
  letter-spacing: 0.3px;
  margin-right: 4px;
}

.searchbox {
  position: relative;
  display: flex;
  align-items: center;
  gap: 9px;
  flex: 1;
  max-width: 480px;
  padding: 9px 15px;
  background: var(--bg2);
  border: 1px solid transparent;
  border-radius: 999px;
  color: var(--overlay);
  transition: border-color 0.2s;
}
.searchbox:focus-within { border-color: var(--mauve); color: var(--mauve); }
.searchbox input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--text);
  font: inherit;
}
.searchbox input::placeholder { color: var(--overlay); }

.suggest {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  z-index: 40;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 6px;
  background: var(--bg2);
  border-radius: var(--radius-small);
  box-shadow: 0 14px 40px rgb(0 0 0 / 0.45);
}
.suggestion {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 8px 12px;
  background: none;
  border: none;
  border-radius: 9px;
  color: var(--subtext);
  font: inherit;
  text-align: left;
  cursor: pointer;
}
.suggestion:hover, .suggestion.active { color: var(--text); background: var(--bg3); }
.suggestion .count { font-size: 12px; color: var(--overlay); }

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  padding: 0;
  background: var(--bg2);
  color: var(--subtext);
  border: none;
  border-radius: var(--radius-small);
  cursor: pointer;
  transition: color 0.2s, background 0.2s;
}
.icon-btn:hover, .icon-btn.active { color: var(--mauve); background: var(--bg3); }

.view-toggle { display: flex; gap: 4px; }

.sort-wrap { position: relative; }

#sort {
  appearance: none;
  -webkit-appearance: none;
  padding: 9px 30px 9px 9px;
  background: var(--bg2);
  color: var(--subtext);
  border: none;
  border-radius: var(--radius-small);
  font: inherit;
  cursor: pointer;
}
#sort:hover { color: var(--text); }

.sort-arrow {
  position: absolute;
  top: 50%;
  right: 11px;
  width: 18px;
  height: 18px;
  color: var(--subtext);
  pointer-events: none;
  transform: translateY(-50%);
  transition: color 0.2s;
}
.sort-wrap:hover .sort-arrow { color: var(--mauve); }

/* shell layout */
.shell { display: flex; min-height: calc(100vh - 63px); }

#sidebar {
  position: sticky;
  top: 63px;
  align-self: flex-start;
  width: 250px;
  height: calc(100vh - 63px);
  overflow-y: auto;
  flex-shrink: 0;
  padding: 20px 14px;
  display: flex;
  flex-direction: column;
  gap: 22px;
  transition: margin-left 0.28s ease, opacity 0.2s ease;
}

body.sidebar-closed #sidebar {
  margin-left: -250px;
  opacity: 0;
  pointer-events: none;
}

.side-section h3 {
  margin: 0 0 8px 12px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.4px;
  color: var(--overlay);
}

/* category tree */
#cat-nav ul { list-style: none; margin: 0; padding: 0; }

.cat-row { display: flex; align-items: center; }

.cat-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  padding: 0;
  background: none;
  border: none;
  border-radius: 8px;
  color: var(--overlay);
  cursor: pointer;
  transition: color 0.2s, background 0.2s;
}
.cat-toggle:hover { color: var(--text); background: var(--bg3); }
.cat-toggle.ghost { visibility: hidden; }
.cat-toggle svg { width: 14px; height: 14px; transition: transform 0.25s ease; }
.cat-node.open > .cat-row .cat-toggle:not(.ghost) svg { transform: rotate(90deg); }

.cat-children {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.28s ease;
}
.cat-node.open > .cat-children { grid-template-rows: 1fr; }
.cat-children > ul { overflow: hidden; min-height: 0; padding-left: 20px; }

.cat-btn {
  display: flex;
  flex: 1;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-width: 0;
  padding: 8px 12px;
  background: none;
  color: var(--subtext);
  border: none;
  border-radius: 10px;
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: color 0.2s, background 0.2s;
}
.cat-btn:hover { color: var(--text); background: var(--bg2); }
.cat-btn.active { color: var(--bg); background: var(--mauve); font-weight: 500; }
.cat-btn .count {
  font-size: 12px;
  color: var(--overlay);
  background: var(--bg2);
  border-radius: 999px;
  padding: 1px 8px;
}
.cat-btn.active .count { color: var(--bg); background: color-mix(in srgb, var(--bg) 25%, transparent); }

/* tag chips */
#tags { display: flex; flex-wrap: wrap; gap: 7px; padding: 0 8px; }
.chip {
  padding: 5px 12px;
  background: var(--bg2);
  color: var(--subtext);
  border: none;
  border-radius: 999px;
  font: inherit;
  font-size: 13px;
  cursor: pointer;
  transition: color 0.2s, background 0.2s;
}
.chip:hover { color: var(--text); background: var(--bg3); }
.chip.active { color: var(--bg); background: var(--pink); font-weight: 500; }

#upload-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 38px;
  padding: 0 15px;
  background: var(--bg2);
  color: var(--lavender);
  border-radius: var(--radius-small);
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s, background 0.2s;
}
#upload-link:hover { color: var(--mauve); background: var(--bg3); }
#upload-link svg { width: 19px; height: 19px; }

#scrim {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 25;
  background: rgb(0 0 0 / 0.5);
  backdrop-filter: blur(3px);
}

/* gallery */
#main { flex: 1; padding: 22px 26px 60px; min-width: 0; }
#results-info { margin: 2px 4px 16px; color: var(--subtext); font-size: 14px; }

.grid { columns: 4 240px; column-gap: 14px; }
.card {
  display: block;
  width: 100%;
  margin: 0 0 14px;
  padding: 0;
  border: 1px solid transparent;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg2);
  cursor: pointer;
  break-inside: avoid;
  transition: border-color 0.2s, transform 0.2s;
}
.card:hover { border-color: var(--mauve); transform: translateY(-2px); }
.card img, .card video { display: block; width: 100%; height: auto; }
.card figcaption {
  padding: 8px 12px;
  font-size: 13px;
  color: var(--subtext);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.list { display: flex; flex-direction: column; gap: 8px; }
.row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 8px 12px 8px 8px;
  background: var(--bg1);
  border: 1px solid transparent;
  border-radius: var(--radius-small);
  cursor: pointer;
  transition: border-color 0.2s;
}
.row:hover { border-color: var(--mauve); }
.row img, .row video {
  width: 96px;
  height: 54px;
  object-fit: cover;
  border-radius: 8px;
  background: var(--bg3);
}
.row .row-name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.row .row-meta { color: var(--overlay); font-size: 13px; white-space: nowrap; }
.row .dot { width: 12px; height: 12px; border-radius: 999px; flex-shrink: 0; }

#empty { text-align: center; padding: 80px 0; color: var(--subtext); }

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  background: var(--bg3);
  color: var(--text);
  border: none;
  border-radius: 999px;
  font: inherit;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}
.pill:hover { background: color-mix(in srgb, var(--mauve) 30%, var(--bg3)); }
.pill.primary { background: var(--mauve); color: var(--bg); font-weight: 500; }
.pill.primary:hover { filter: brightness(1.1); }

/* lightbox */
#lightbox {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 30px;
  background: rgb(9 9 15 / 0.88);
  backdrop-filter: blur(16px);
}
#lightbox figure {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  margin: 0;
  max-width: min(1200px, 100%);
  max-height: 100%;
}
#lb-link { display: flex; min-height: 0; max-width: 100%; }
#lb-img, #lb-video {
  max-width: 100%;
  max-height: calc(100vh - 160px);
  border-radius: var(--radius);
  box-shadow: 0 18px 60px rgb(0 0 0 / 0.55);
  background: var(--bg1);
}
#lb-video { max-height: calc(100vh - 190px); }
#lightbox figcaption {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px 16px;
  color: var(--subtext);
  font-size: 14px;
}
#lb-name { color: var(--text); font-weight: 500; }
#lb-download svg { width: 17px; height: 17px; }

/* upload page */
#upload { max-width: 820px; margin: 0 auto; }
#upload h2 { margin: 6px 4px 8px; color: var(--mauve); }
.hint { color: var(--subtext); margin: 6px 4px 20px; }

#dropzone {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 56px 20px;
  background: var(--bg1);
  border: 2px dashed var(--bg3);
  border-radius: var(--radius);
  color: var(--overlay);
  cursor: pointer;
  text-align: center;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
#dropzone:hover, #dropzone.drag {
  border-color: var(--mauve);
  color: var(--mauve);
  background: color-mix(in srgb, var(--mauve) 7%, var(--bg1));
}
#dropzone svg { width: 34px; height: 34px; }
#dropzone b { color: var(--lavender); }

#upload-preview {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  margin-top: 22px;
  padding: 18px;
  background: var(--bg1);
  border-radius: var(--radius);
}
#preview-img, #preview-video {
  max-width: min(420px, 100%);
  max-height: 340px;
  border-radius: var(--radius-small);
  align-self: flex-start;
}
.preview-info { flex: 1; min-width: 240px; }
.preview-info h3 { margin: 2px 0 12px; color: var(--text); overflow-wrap: anywhere; }
.preview-info dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px 18px;
  margin: 0 0 18px;
}
.preview-info dt { color: var(--overlay); }
.preview-info dd { margin: 0; overflow-wrap: anywhere; }
.preview-info code { color: var(--pink); }
.swatch {
  display: inline-block;
  width: 15px;
  height: 15px;
  border-radius: 5px;
  margin-right: 7px;
  vertical-align: -2px;
  outline: 1px solid var(--bg3);
}
#category-select {
  padding: 7px 10px;
  background: var(--bg2);
  color: var(--text);
  border: none;
  border-radius: 9px;
  font: inherit;
}
.preview-actions { display: flex; flex-wrap: wrap; gap: 10px; }

#oversize a { color: var(--pink); }
#host-link {
  display: block;
  width: 100%;
  margin-top: 8px;
  padding: 9px 13px;
  background: var(--bg2);
  border: 1px solid var(--bg3);
  border-radius: 9px;
  color: var(--text);
  font: inherit;
}
#host-link:focus { outline: none; border-color: var(--mauve); }
#oversize code { color: var(--pink); }

/* responsive */
@media (max-width: 900px) {
  .upload-text { display: none; }
  #upload-link { padding: 0 11px; }
  #sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 30;
    width: 275px;
    height: 100vh;
    background: var(--bg1);
    transform: translateX(-105%);
    transition: transform 0.25s ease;
  }
  body.sidebar-closed #sidebar { margin-left: 0; opacity: 1; pointer-events: auto; }
  body.sidebar-open #sidebar { transform: none; margin-left: 0; opacity: 1; pointer-events: auto; box-shadow: 0 0 60px rgb(0 0 0 / 0.5); }
  body.sidebar-open #scrim { display: block; }
  .searchbox { max-width: none; }
  .sort-wrap { display: none; }
}

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--bg3); border-radius: 999px; border: 2px solid var(--bg); }
::-webkit-scrollbar-track { background: transparent; }