:root {
  --bg: #f6f5f1;
  --surface: #ffffff;
  --surface-2: #efede7;
  --text: #1c1c1e;
  --muted: #6b6b70;
  --border: #dedbd2;
  --accent: #1d3557;
  --accent-contrast: #ffffff;
  --accent-soft: #dbe4f0;
  --good: #1b7f3b;
  --good-soft: #dcf2e3;
  --bad: #b3261e;
  --bad-soft: #f9dedc;
  --radius: 12px;
  --shadow: 0 1px 2px rgb(0 0 0 / 6%), 0 4px 16px rgb(0 0 0 / 6%);
  --font: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #131417;
    --surface: #1d1f23;
    --surface-2: #272a30;
    --text: #ececef;
    --muted: #9a9ca3;
    --border: #33363d;
    --accent: #8fb3e8;
    --accent-contrast: #0e1726;
    --accent-soft: #24344d;
    --good: #6fd08c;
    --good-soft: #1d3a27;
    --bad: #f28b82;
    --bad-soft: #452523;
    --shadow: 0 1px 2px rgb(0 0 0 / 40%), 0 4px 16px rgb(0 0 0 / 30%);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.45 var(--font);
}
body.no-scroll { overflow: hidden; }
[hidden] { display: none !important; }
button, input, select { font: inherit; color: inherit; }
button { cursor: pointer; }
button:disabled { cursor: default; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
h1, h2 { margin: 0; line-height: 1.2; }
.muted { color: var(--muted); }
.error { color: var(--bad); }

/* ---------- top bar ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px max(16px, env(safe-area-inset-left));
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.brand { min-width: 0; }
.brand h1 { font-size: 1.25rem; }
.brand p { margin: 0; color: var(--muted); font-size: 0.85rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tabs { display: flex; gap: 4px; background: var(--surface-2); padding: 4px; border-radius: 999px; flex-shrink: 0; }
.tabs button {
  border: 0;
  background: transparent;
  padding: 6px 16px;
  border-radius: 999px;
  font-weight: 600;
  color: var(--muted);
}
.tabs button[aria-selected="true"] { background: var(--accent); color: var(--accent-contrast); }
.conn-banner { background: var(--bad-soft); color: var(--bad); text-align: center; padding: 6px; font-size: 0.9rem; }

main { padding: 16px; max-width: 1400px; margin: 0 auto; }

/* ---------- buttons & form controls ---------- */
.primary {
  background: var(--accent);
  color: var(--accent-contrast);
  border: 0;
  border-radius: 999px;
  padding: 10px 20px;
  font-weight: 600;
}
.primary:disabled { opacity: 0.45; }
.link { background: none; border: 0; padding: 4px 0; color: var(--accent); font-weight: 600; }
input[type="search"], select {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 8px;
  padding: 8px 10px;
  min-width: 0;
}
.icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: 1.2rem;
  line-height: 1;
  display: grid;
  place-items: center;
}

/* ---------- filters ---------- */
.filters { display: flex; flex-direction: column; gap: 14px; }
.search-row { display: flex; gap: 8px; }
.search-row input { flex: 1; }
.search-row select { max-width: 45%; }
.chip-group { border: 0; margin: 0; padding: 0; }
.chip-group legend { font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); margin-bottom: 6px; padding: 0; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 0.9rem;
}
.chip.on { background: var(--accent-soft); border-color: var(--accent); color: var(--text); font-weight: 600; }
.filters-footer { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.match-count { font-weight: 600; }

/* ---------- explore ---------- */
.explore { display: grid; grid-template-columns: 1fr; gap: 16px; }
.filter-toggle {
  justify-self: start;
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 999px;
  padding: 8px 16px;
  font-weight: 600;
}
.sidebar { display: none; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; }
.sidebar.open { display: block; }

@media (min-width: 900px) {
  .explore { grid-template-columns: 300px 1fr; align-items: start; }
  .filter-toggle { display: none; }
  .sidebar { display: block; position: sticky; top: 76px; max-height: calc(100vh - 92px); overflow: auto; }
}

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; }
@media (min-width: 600px) { .grid { grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 16px; } }
.card {
  display: flex;
  flex-direction: column;
  padding: 0;
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: var(--radius);
  overflow: hidden;
  text-align: left;
  transition: transform 0.12s, box-shadow 0.12s;
}
.card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.card-img { aspect-ratio: 4 / 3; background: var(--surface-2); display: grid; place-items: center; overflow: hidden; }
.card-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.no-img { color: var(--muted); font-size: 0.85rem; }
.card-title { padding: 8px 10px 10px; font-size: 0.9rem; font-weight: 500; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
img.loading { opacity: 0; }
img { transition: opacity 0.2s; }
img.broken { opacity: 0.2; }

.title-list { display: flex; flex-direction: column; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; background: var(--surface); }
.title-row { text-align: left; border: 0; border-bottom: 1px solid var(--border); background: transparent; padding: 12px 14px; }
.title-row:hover { background: var(--surface-2); }
.history-nav { display: flex; gap: 6px; flex-wrap: wrap; }
.results > .history-nav { margin-bottom: 12px; }
.nav-btn {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 999px;
  padding: 6px 14px;
  font-weight: 600;
  white-space: nowrap;
}
.nav-btn:not(:disabled):hover { border-color: var(--accent); }
.nav-btn:disabled { opacity: 0.4; }
.list-status { text-align: center; color: var(--muted); padding: 20px; min-height: 60px; }
.sentinel { height: 1px; }

/* ---------- details overlay ---------- */
.overlay {
  position: fixed;
  inset: 0;
  z-index: 50;
  background: rgb(0 0 0 / 60%);
  display: grid;
  place-items: center;
  padding: 24px;
  animation: fade 0.15s ease-out;
}
@keyframes fade { from { opacity: 0; } }
.details {
  position: relative;
  width: min(1150px, 100%);
  max-height: 100%;
  overflow: auto;
  background: var(--surface);
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 20px;
}
.details-bar {
  position: sticky;
  top: -20px;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 8px;
  margin: -20px -20px 12px;
  padding: 12px 12px 12px 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.details .close { margin-left: auto; flex-shrink: 0; }
.details .nav { position: fixed; top: 50%; transform: translateY(-50%); z-index: 51; background: rgb(255 255 255 / 90%); color: #111; border: 0; box-shadow: 0 2px 8px rgb(0 0 0 / 35%); }
.details .nav.prev { left: 8px; }
.details .nav.next { right: 8px; }
.details-grid { display: grid; grid-template-columns: 1fr; gap: 20px; }
@media (min-width: 900px) {
  .details-grid { grid-template-columns: minmax(0, 3fr) minmax(260px, 2fr); }
  .details-grid.no-media { grid-template-columns: 1fr; }
}
.stage { margin: 0; background: var(--surface-2); border-radius: var(--radius); overflow: hidden; }
.stage img { display: block; width: 100%; max-height: 70vh; object-fit: contain; }
.stage figcaption, .clue-images figcaption { font-size: 0.8rem; color: var(--muted); padding: 6px 10px; }
.thumbs { display: flex; gap: 8px; margin-top: 10px; flex-wrap: wrap; }
.thumb { border: 2px solid transparent; background: var(--surface-2); border-radius: 8px; padding: 0; overflow: hidden; width: 96px; }
.thumb img { width: 100%; aspect-ratio: 1; object-fit: cover; display: block; }
.thumb span { display: block; font-size: 0.72rem; padding: 2px 4px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.thumb.current { border-color: var(--accent); }
.info h2 { font-size: 1.35rem; margin: 0 0 14px; }
.info dl { margin: 0; display: grid; grid-template-columns: max-content 1fr; gap: 8px 16px; }
.info dt { color: var(--muted); font-size: 0.9rem; }
.info dd { margin: 0; overflow-wrap: anywhere; }

@media (max-width: 640px) {
  .overlay { padding: 0; }
  .details { border-radius: 0; height: 100%; padding: 12px 12px 72px; }
  .details-bar { top: -12px; margin: -12px -12px 12px; padding: 8px 8px 8px 12px; }
  .details-bar .nav-btn { padding: 6px 12px; }
  .details-bar .nav-label { display: none; }
  .details .nav { top: auto; bottom: 12px; transform: none; }
}

/* ---------- quiz ---------- */
.quiz-setup { display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 900px) { .quiz-setup { grid-template-columns: 1fr 1fr; align-items: start; } }
.setup-block { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; display: flex; flex-direction: column; gap: 10px; }
.setup-block h2 { font-size: 1.1rem; margin-bottom: 4px; }
.field { font-weight: 600; margin: 8px 0 0; }
.clue-list { display: flex; flex-wrap: wrap; gap: 8px; }
.check { display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--border); border-radius: 999px; padding: 4px 12px 4px 8px; background: var(--surface); }
.check small { color: var(--muted); }
.check.disabled { opacity: 0.4; }
.setup-block .primary { align-self: flex-start; margin-top: 8px; }

.quiz-play { max-width: 900px; margin: 0 auto; }
.play-bar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.streak { color: var(--good); font-weight: 600; }
.question-card { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 16px; box-shadow: var(--shadow); }
.clue-images { display: grid; gap: 10px; }
@media (min-width: 640px) {
  .clue-images.n2 { grid-template-columns: 1fr 1fr; }
  .clue-images.n3 { grid-template-columns: 1fr 1fr 1fr; }
}
.clue-images figure { margin: 0; background: var(--surface-2); border-radius: var(--radius); overflow: hidden; }
.clue-images img { display: block; width: 100%; max-height: 55vh; object-fit: contain; }
.clue-text { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; margin: 14px 0 0; }
.clue-text dt { color: var(--muted); }
.clue-text dd { margin: 0; font-weight: 600; }
.ask { font-size: 1.25rem; margin: 18px 0 12px; }
.options { display: grid; gap: 8px; grid-template-columns: 1fr; }
@media (min-width: 640px) { .options { grid-template-columns: 1fr 1fr; } }
.option {
  display: flex;
  align-items: center;
  gap: 10px;
  text-align: left;
  border: 2px solid var(--border);
  background: var(--surface);
  border-radius: 10px;
  padding: 12px 14px;
  font-weight: 500;
  min-height: 52px;
}
.option:not(:disabled):hover { border-color: var(--accent); }
.option kbd { font: 600 0.75rem var(--font); color: var(--muted); border: 1px solid var(--border); border-radius: 4px; padding: 1px 6px; }
.option.right { border-color: var(--good); background: var(--good-soft); }
.option.wrong { border-color: var(--bad); background: var(--bad-soft); }
.option:disabled { color: var(--text); }
.feedback p { font-weight: 700; margin: 14px 0 8px; }
.feedback .good { color: var(--good); }
.feedback .bad { color: var(--bad); }
.feedback-actions { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
@media (hover: none) { .option kbd { display: none; } }

/* ---------- item editing ---------- */
.edit-slot { display: contents; }
.details.editing .details-bar > :not(.close),
.details.editing .nav { display: none; }
.edit-form { max-width: 720px; display: flex; flex-direction: column; gap: 12px; }
.edit-form h2 { font-size: 1.25rem; }
.edit-form p { margin: 0; }
.edit-row { display: flex; flex-direction: column; gap: 4px; }
.edit-row label { font-weight: 600; font-size: 0.9rem; }
.edit-row label small { font-weight: 400; color: var(--muted); }
.edit-form input[type="text"], .edit-form input[type="password"], .edit-form textarea {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 8px;
  padding: 8px 10px;
  width: 100%;
}
.edit-form textarea { resize: vertical; }
.edit-actions { display: flex; align-items: center; gap: 16px; margin-top: 4px; }
.captcha-image { display: block; border-radius: 8px; background: #f4f1ea; }
.login-form #edit-answer { max-width: 120px; }
.edit-notice { margin: 0 0 12px; padding: 8px 12px; border-radius: 8px; background: var(--bad-soft); }
.edit-notice.ok { background: var(--good-soft); color: var(--good); }
.edit-tools { display: contents; }
.history { max-width: 760px; display: flex; flex-direction: column; gap: 12px; align-items: flex-start; }
.history h2 { font-size: 1.25rem; }
.history-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; align-self: stretch; }
.history-step { border: 1px solid var(--border); border-radius: var(--radius); padding: 10px 14px; background: var(--surface); }
.history-step.undone { opacity: 0.6; }
.history-step p { margin: 0 0 6px; }
.history-step dl { margin: 0 0 8px; display: grid; grid-template-columns: max-content 1fr; gap: 4px 12px; }
.history-step dt { color: var(--muted); font-size: 0.9rem; }
.history-step dd { margin: 0; overflow-wrap: anywhere; }
.history-step del { color: var(--bad); }
.history-step ins { color: var(--good); text-decoration: none; font-weight: 600; }

/* ---------- links ---------- */
.info dd.links { display: flex; flex-wrap: wrap; gap: 6px; }
.link-chip {
  border: 1px solid var(--border);
  background: var(--accent-soft);
  color: var(--text);
  border-radius: 999px;
  padding: 2px 10px;
  font-size: 0.88rem;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
button.link-chip:hover { border-color: var(--accent); }
.link-chip.unknown { background: transparent; color: var(--muted); border-style: dashed; }

/* ---------- links graph ---------- */
.graph-overlay {
  position: fixed;
  inset: 0;
  z-index: 50;
  background: rgb(0 0 0 / 60%);
  display: grid;
  place-items: center;
  padding: 24px;
  animation: fade 0.15s ease-out;
}
.graph-panel {
  width: min(1400px, 100%);
  height: 100%;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border-radius: 16px;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.graph-head, .graph-tools {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 12px;
  padding: 10px 12px 10px 20px;
}
.graph-head { border-bottom: 1px solid var(--border); }
.graph-head h2 { font-size: 1.15rem; margin-right: 8px; }
.graph-head .close { margin-left: auto; order: 2; }
.graph-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.graph-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px 12px 3px 8px;
  font-size: 0.9rem;
  cursor: pointer;
  user-select: none;
}
.graph-chip input { position: absolute; opacity: 0; pointer-events: none; }
.graph-chip .dot { width: 12px; height: 12px; border-radius: 50%; border: 2px solid var(--c); }
.graph-chip:has(input:checked) { border-color: var(--c); background: color-mix(in srgb, var(--c) 14%, transparent); }
.graph-chip:has(input:checked) .dot { background: var(--c); }
.graph-chip:has(input:focus-visible) { outline: 3px solid var(--accent); outline-offset: 2px; }
.graph-tools { padding-top: 8px; padding-bottom: 8px; border-bottom: 1px solid var(--border); font-size: 0.92rem; }
.graph-scope { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.graph-scope-text { font-weight: 600; }
.graph-scope select, .graph-find input {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 8px;
  padding: 5px 8px;
}
.graph-find input { width: min(280px, 100%); }
.graph-stats { margin-left: auto; }
.graph-stage {
  position: relative;
  flex: 1;
  min-height: 0;
  background:
    radial-gradient(circle at 1px 1px, color-mix(in srgb, var(--muted) 25%, transparent) 1px, transparent 0) 0 0 / 22px 22px,
    var(--surface);
}
.graph-canvas { position: absolute; inset: 0; overflow: hidden; }
.graph-message {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--muted);
  pointer-events: none;
}
.graph-hint { margin: 0; padding: 6px 20px 8px; font-size: 0.8rem; border-top: 1px solid var(--border); }
/* force-graph's hover tooltip */
.graph-canvas .float-tooltip-kap {
  background: var(--text) !important;
  color: var(--surface) !important;
  border-radius: 6px;
  padding: 4px 8px;
  font-size: 0.85rem;
}

@media (max-width: 640px) {
  .graph-overlay { padding: 0; }
  .graph-panel { border-radius: 0; }
  .graph-head, .graph-tools { padding-left: 12px; }
  .graph-chips { order: 3; flex-basis: 100%; }
  .graph-stats { margin-left: 0; width: 100%; }
  .graph-hint { display: none; }
}

/* ---------- links picker (edit form) ---------- */
.picker { display: flex; flex-direction: column; gap: 8px; border: 1px solid var(--border); border-radius: 10px; padding: 10px; }
.picker-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.picker-chip { display: inline-flex; align-items: center; gap: 4px; padding-right: 4px; }
.picker-chip button { border: 0; background: transparent; padding: 0 4px; font-size: 1rem; line-height: 1; color: var(--muted); }
.picker-chip button:hover { color: var(--bad); }
.edit-form .picker input[type="search"] {
  font: inherit;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
}
.picker-list { list-style: none; margin: 0; padding: 0; max-height: 260px; overflow: auto; border-radius: 8px; background: var(--surface-2); }
.picker-list li { display: flex; align-items: center; gap: 10px; padding: 6px 10px; cursor: pointer; }
.picker-list li.empty { cursor: default; }
.picker-list li:not(.empty):hover, .picker-list li.active { background: var(--accent-soft); }
.picker-list li.on { font-weight: 600; }
.picker-list .tick { width: 1.2em; text-align: center; color: var(--muted); }
.picker-list li.on .tick { color: var(--good); }
.picker-list img { width: 36px; height: 36px; object-fit: cover; border-radius: 6px; flex-shrink: 0; background: var(--surface); }
.picker-title { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.picker-key { font-size: 0.8rem; flex-shrink: 0; }

/* Slideshow: an image cell listing several files */
.slideshow { position: relative; width: 100%; touch-action: pan-y; user-select: none; }
.slideshow > img { display: block; }
.card-img .slideshow { height: 100%; }
.card-img .slideshow > img { width: 100%; height: 100%; object-fit: cover; }
.ss-btn {
  position: absolute; top: 50%; transform: translateY(-50%);
  display: grid; place-items: center; width: 40px; height: 40px; padding: 0;
  border: 0; border-radius: 50%; background: rgba(0, 0, 0, 0.45); color: #fff;
  font-size: 1.6rem; line-height: 1; cursor: pointer; opacity: 0.85;
}
.ss-btn:hover { opacity: 1; background: rgba(0, 0, 0, 0.65); }
.ss-btn.prev { left: 8px; }
.ss-btn.next { right: 8px; }
.ss-counter {
  position: absolute; right: 8px; bottom: 8px; padding: 2px 8px; border-radius: 999px;
  background: rgba(0, 0, 0, 0.55); color: #fff; font-size: 0.75rem; pointer-events: none;
}
.slideshow.compact .ss-btn { width: 28px; height: 28px; font-size: 1.2rem; }
.slideshow.compact .ss-btn.prev { left: 4px; }
.slideshow.compact .ss-btn.next { right: 4px; }
.slideshow.compact .ss-counter { right: 6px; bottom: 6px; font-size: 0.7rem; }
/* Thumbnails: arrows show on hover (always on touch screens). */
@media (hover: hover) {
  .slideshow.compact .ss-btn { opacity: 0; transition: opacity 0.15s; }
  .card:hover .slideshow.compact .ss-btn, .card:focus-visible .slideshow.compact .ss-btn { opacity: 0.85; }
  .card:hover .slideshow.compact .ss-btn:hover { opacity: 1; }
}

.image-preview { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }
.image-preview:empty { display: none; }
.image-preview figure { margin: 0; width: 64px; height: 64px; border-radius: 6px; overflow: hidden; background: var(--surface-2); }
.image-preview img { width: 100%; height: 100%; object-fit: cover; display: block; }
.graph-group { display: flex; align-items: center; gap: 6px; }
.graph-group select {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 8px;
  padding: 5px 8px;
}

/* ---------- field types, enum values, new fields ---------- */
.type-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--muted);
  background: var(--surface-2);
  border-radius: 999px;
  padding: 1px 8px;
  vertical-align: 1px;
}
.label-line { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.link.small { font-size: 0.85rem; padding: 0; }
.edit-form select { border: 1px solid var(--border); background: var(--surface); border-radius: 8px; padding: 8px 10px; width: 100%; }
.edit-rows { display: flex; flex-direction: column; gap: 12px; }
.enum-editor, .add-field-box {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 6px;
  padding: 12px;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  background: var(--surface-2);
}
.add-field-box h3 { margin: 0; font-size: 1.05rem; }
.edit-form > .nav-btn { align-self: flex-start; }