/* Crop Circle Archive — Formation Explorer */

:root {
  --bg: #faf9f6;
  --bg-raised: #ffffff;
  --bg-inset: #f0eee8;
  --text: #2a2a24;
  --text-dim: #6b6b60;
  --accent: #5d7a2e;
  --accent-soft: #e6ecd8;
  --border: #ddd9cf;
  --exact: #3d6bb3;
  --approx: #b3823d;
  --danger: #a05252;
  --shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
  --radius: 8px;
  color-scheme: light;
}

:root[data-theme='dark'] {
  --bg: #191a16;
  --bg-raised: #22231e;
  --bg-inset: #14150f;
  --text: #e4e2d8;
  --text-dim: #97968a;
  --accent: #a3c065;
  --accent-soft: #2e3522;
  --border: #3a3b32;
  --exact: #7ba3e0;
  --approx: #d9a95e;
  --danger: #cc8888;
  --shadow: 0 4px 16px rgba(0, 0, 0, 0.5);
  color-scheme: dark;
}

:root[data-theme='dark'] .leaflet-tile {
  filter: brightness(0.7) contrast(1.1) saturate(0.7);
}

* { box-sizing: border-box; }

/* Author display rules (e.g. .lightbox { display:flex }) beat the UA's
   [hidden] { display:none } — reassert it, or hidden overlays veil the page. */
[hidden] { display: none !important; }

html, body {
  margin: 0;
  height: 100%;
  font-family: system-ui, -apple-system, 'Segoe UI', sans-serif;
  font-size: 15px;
  background: var(--bg);
  color: var(--text);
}

body {
  display: flex;
  flex-direction: column;
}

kbd {
  font-size: 0.72em;
  background: var(--bg-inset);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 0 4px;
  color: var(--text-dim);
}

button {
  font: inherit;
  color: inherit;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 4px 10px;
  cursor: pointer;
}
button:hover { border-color: var(--accent); }
button:focus-visible, a:focus-visible, [tabindex]:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

/* ---------- top bar ---------- */
.topbar {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 8px 14px;
  background: var(--bg-raised);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.brand { font-size: 1.05rem; margin: 0; font-weight: 650; white-space: nowrap; }
.brand-glyph { color: var(--accent); }
.views { display: flex; gap: 4px; }
.views a {
  padding: 5px 12px;
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--text-dim);
}
.views a.active { background: var(--accent-soft); color: var(--text); font-weight: 600; }
.views a:hover { color: var(--text); }
.topbar-actions { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.result-count { color: var(--text-dim); font-size: 0.88rem; }

/* ---------- filter bar ---------- */
.filter-bar {
  padding: 6px 14px;
  background: var(--bg-raised);
  border-bottom: 1px solid var(--border);
}
.filter-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 8px;
  align-items: center;
}
.filter-summary .pill { background: var(--accent-soft); border-color: var(--accent); color: var(--text); }
#filters-toggle .chevron { display: inline-block; width: 1em; color: var(--accent); }
#filters-toggle .count {
  background: var(--accent);
  color: #fff;
  border-radius: 999px;
  padding: 0 7px;
  font-size: 0.78rem;
}
:root[data-theme='dark'] #filters-toggle .count { color: #14150f; }
.filter-groups {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  align-items: center;
  padding: 8px 0 4px;
  max-height: 34vh;
  overflow-y: auto;
}
.filter-group { display: flex; align-items: center; gap: 5px; flex-wrap: wrap; }
.filter-group > label { font-size: 0.78rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.04em; }
.chip {
  border-radius: 999px;
  padding: 2px 10px;
  font-size: 0.84rem;
  border: 1px solid var(--border);
  background: var(--bg);
}
.chip[aria-pressed='true'] {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
:root[data-theme='dark'] .chip[aria-pressed='true'] { color: #14150f; }
.chip .count { opacity: 0.65; font-size: 0.9em; margin-left: 3px; }
.chip:disabled { opacity: 0.35; cursor: default; }
#search-box {
  font: inherit;
  padding: 5px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  width: 210px;
}
.clear-all { color: var(--danger); border-color: transparent; background: none; }
.filter-hint { font-size: 0.78rem; color: var(--text-dim); font-style: italic; }
.filter-group input[type='date'] {
  font: inherit;
  font-size: 0.84rem;
  padding: 2px 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg);
  color: var(--text);
}
.date-sep { color: var(--text-dim); }
.month-bars { display: flex; gap: 2px; align-items: flex-end; }
.month-bars button {
  width: 22px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 3px 3px 0 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: center;
  height: 34px;
  background: var(--bg);
  position: relative;
  font-size: 0.62rem;
  color: var(--text-dim);
}
.month-bars button .bar { width: 100%; background: var(--accent); opacity: 0.5; }
.month-bars button[aria-pressed='true'] { border-color: var(--accent); background: var(--accent-soft); }
.month-bars button[aria-pressed='true'] .bar { opacity: 1; }

/* ---------- main view ---------- */
.main-row { flex: 1; min-height: 0; display: flex; }
.view-root { flex: 1; min-height: 0; position: relative; overflow: hidden; }
.view-root > .view { position: absolute; inset: 0; overflow: auto; }
.view-root > .view.view-map { overflow: hidden; }
#leaflet-map { height: 100%; }

.map-legend {
  position: absolute;
  bottom: 18px;
  right: 12px;
  z-index: 800;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 8px 12px;
  font-size: 0.8rem;
  display: grid;
  gap: 4px;
}
.legend-swatch { display: inline-block; width: 12px; height: 12px; border-radius: 50%; margin-right: 6px; vertical-align: -1px; }
.legend-exact { background: var(--exact); }
.legend-approx { border: 2px dashed var(--approx); background: transparent; }

.map-tray {
  position: absolute;
  bottom: 18px;
  left: 12px;
  z-index: 800;
  box-shadow: var(--shadow);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 0.85rem;
}

.tile-warning {
  position: absolute;
  top: 10px; left: 50%; transform: translateX(-50%);
  z-index: 900;
  background: var(--bg-raised);
  border: 1px solid var(--approx);
  padding: 4px 14px;
  border-radius: var(--radius);
  font-size: 0.82rem;
}

/* marker glyphs */
.marker-exact, .marker-approx {
  border-radius: 50%;
  box-sizing: border-box;
}
.marker-exact { background: var(--exact); border: 2px solid #fff; box-shadow: 0 0 3px rgba(0,0,0,.4); }
.marker-approx { background: transparent; border: 2px dashed var(--approx); }
.cluster-approx { opacity: 0.75; }

/* ---------- list view ---------- */
.list-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.list-table th {
  position: sticky; top: 0;
  background: var(--bg-raised);
  border-bottom: 2px solid var(--border);
  text-align: left;
  padding: 8px 10px;
  cursor: pointer;
  white-space: nowrap;
  z-index: 5;
}
.list-table th .sort-arrow { color: var(--accent); }
.list-table td { padding: 6px 10px; border-bottom: 1px solid var(--border); }
.list-table tbody tr { cursor: pointer; }
.list-table tbody tr:hover, .list-table tbody tr.kb-focus { background: var(--accent-soft); }
.badge {
  display: inline-block;
  font-size: 0.72rem;
  padding: 1px 7px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text-dim);
  white-space: nowrap;
}
.badge-wayback { border-color: var(--approx); color: var(--approx); }
.badge-hoax { border-color: var(--danger); color: var(--danger); }
.badge-exact { border-color: var(--exact); color: var(--exact); }
.badge-approx { border-color: var(--approx); color: var(--approx); }
.list-banner {
  padding: 10px 14px;
  background: var(--accent-soft);
  border-bottom: 1px solid var(--border);
  font-size: 0.88rem;
}
.empty-state { padding: 60px 20px; text-align: center; color: var(--text-dim); }

/* ---------- timeline footer ---------- */
.timeline {
  background: var(--bg-raised);
  border-top: 1px solid var(--border);
  padding: 6px 14px 10px;
  user-select: none;
}
.timeline-head { display: flex; align-items: center; gap: 12px; font-size: 0.8rem; color: var(--text-dim); }
.timeline-head .range-label { font-weight: 600; color: var(--text); min-width: 110px; }
/* overflow: visible — the range-end circle sits on the viewBox edge; clipped,
   its far half would be unhittable and the handle undraggable. */
.timeline svg { display: block; width: 100%; height: 64px; overflow: visible; }
.timeline .bar { fill: var(--accent); opacity: 0.45; }
.timeline .bar.in-range { opacity: 1; }
.timeline .hist-divider { stroke: var(--border); stroke-dasharray: 3 3; }
.timeline .brush-handle { fill: var(--bg-raised); stroke: var(--accent); stroke-width: 2; cursor: ew-resize; touch-action: none; }
.timeline .brush-region { fill: var(--accent); opacity: 0.08; }
.timeline .era-label { font-size: 9px; fill: var(--text-dim); }

/* ---------- docked detail panel ---------- */
.drawer {
  flex: 0 0 min(430px, 40vw);
  width: min(430px, 40vw);
  background: var(--bg-raised);
  border-left: 1px solid var(--border);
  overflow-y: auto;
  padding: 0 0 30px;
  min-height: 0;
}
body.panel-closed .drawer { display: none; }
.drawer-placeholder {
  padding: 60px 24px;
  text-align: center;
  color: var(--text-dim);
}
.drawer-placeholder .glyph { font-size: 2.2rem; color: var(--accent); }
.drawer-nav {
  position: sticky; top: 0;
  display: flex; gap: 6px;
  padding: 8px;
  background: var(--bg-raised);
  border-bottom: 1px solid var(--border);
  z-index: 10;
}
.drawer-nav .spacer { flex: 1; }
.drawer-hero { width: 100%; max-height: 320px; object-fit: cover; display: block; background: var(--bg-inset); }
.drawer-hero-fallback {
  padding: 40px 20px;
  text-align: center;
  color: var(--text-dim);
  background: var(--bg-inset);
}
.drawer-body { padding: 14px 18px; }
.drawer-body h2 { margin: 0 0 4px; font-size: 1.15rem; }
.drawer-sub { color: var(--text-dim); font-size: 0.88rem; margin-bottom: 8px; }
.badge-row { display: flex; flex-wrap: wrap; gap: 6px; margin: 10px 0; }
.drawer-desc { white-space: pre-wrap; line-height: 1.5; font-size: 0.92rem; }
.media-strip { display: flex; gap: 8px; overflow-x: auto; padding: 10px 0; }
.media-strip figure { margin: 0; flex: 0 0 auto; width: 130px; }
.media-strip img { width: 130px; height: 90px; object-fit: cover; border-radius: 4px; cursor: zoom-in; background: var(--bg-inset); }
.media-strip figcaption { font-size: 0.68rem; color: var(--text-dim); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.media-link-card {
  display: block; padding: 8px; border: 1px solid var(--border); border-radius: 4px;
  font-size: 0.8rem; width: 130px; flex: 0 0 auto; text-align: center;
}
.provenance {
  margin-top: 16px;
  padding: 12px;
  background: var(--bg-inset);
  border-radius: var(--radius);
  font-size: 0.84rem;
}
.provenance dt { color: var(--text-dim); float: left; clear: left; width: 105px; }
.provenance dd { margin: 0 0 4px 115px; word-break: break-all; }
.provenance .wayback-line { color: var(--approx); }
details.data-notes { margin-top: 8px; font-size: 0.8rem; }
details.data-notes li { color: var(--text-dim); }

/* ---------- lightbox ---------- */
.lightbox {
  position: fixed; inset: 0;
  background: rgba(0, 0, 0, 0.85);
  z-index: 1300;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 30px;
}
.lightbox img { max-width: 92vw; max-height: 80vh; object-fit: contain; }
.lightbox .lb-caption { color: #ddd; font-size: 0.85rem; text-align: center; }
.lightbox .lb-caption a { color: #a3c065; }

/* ---------- evolution view ---------- */
.evolution { padding: 18px clamp(12px, 4vw, 50px); max-width: 1100px; margin: 0 auto; }
.honesty-banner {
  background: var(--accent-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
  font-size: 0.88rem;
  margin-bottom: 18px;
}
.era-panel {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin-bottom: 14px;
}
.era-panel h3 { margin: 0 0 2px; }
.era-panel .era-span { color: var(--text-dim); font-size: 0.85rem; }
.era-panel .era-stats { font-size: 0.88rem; margin: 8px 0; }
.era-thumbs { display: flex; gap: 8px; margin: 10px 0; flex-wrap: wrap; }
.era-thumbs img { width: 110px; height: 82px; object-fit: cover; border-radius: 4px; cursor: pointer; background: var(--bg-inset); }
.sparklines { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 12px; margin-top: 20px; }
.sparkline {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 10px;
  cursor: pointer;
}
.sparkline:hover { border-color: var(--accent); }
.sparkline .spark-label { font-size: 0.8rem; display: flex; justify-content: space-between; }
.sparkline svg { width: 100%; height: 34px; display: block; }
.sparkline path { fill: none; stroke: var(--accent); stroke-width: 1.5; }
.sparkline .spark-area { fill: var(--accent); opacity: 0.15; stroke: none; }

/* ---------- about ---------- */
.about { padding: 18px clamp(12px, 4vw, 50px); max-width: 900px; margin: 0 auto; line-height: 1.55; }
.source-card {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  margin-bottom: 12px;
}
.source-card h3 { margin: 0 0 4px; }
.source-card .source-stats { display: flex; flex-wrap: wrap; gap: 6px 18px; font-size: 0.85rem; color: var(--text-dim); margin: 8px 0; }
.source-card .notes { font-size: 0.88rem; }

/* ---------- review view + symbols ---------- */
.review { padding: 18px clamp(12px, 4vw, 50px); max-width: 1100px; margin: 0 auto; }
.review-progress {
  display: flex; gap: 14px; align-items: baseline;
  margin-bottom: 12px; font-size: 0.95rem;
}
.review-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}
.review-photo { margin: 0; min-width: 0; }
.review-photo img { width: 100%; max-height: 420px; object-fit: contain; background: var(--bg-inset); border-radius: 4px; }
.review-photo figcaption, .review-symbol figcaption { font-size: 0.78rem; color: var(--text-dim); margin-top: 6px; }
.review-symbol { display: flex; flex-direction: column; align-items: center; justify-content: center; }
.symbol-frame {
  width: min(320px, 100%);
  aspect-ratio: 1;
  color: var(--text);
  background: var(--bg-inset);
  border-radius: 8px;
  padding: 14px;
}
.symbol-frame svg { width: 100%; height: 100%; }
.review-meta { margin: 14px 0 6px; }
.review-meta h3 { margin: 0 0 4px; }
.review-actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-top: 10px; }
.review-actions button { padding: 8px 18px; font-size: 1rem; }
.rv-approve { border-color: var(--accent); color: var(--accent); font-weight: 600; }
.rv-reject { border-color: var(--danger); color: var(--danger); font-weight: 600; }
#rv-note { flex: 1; min-width: 200px; font: inherit; padding: 7px 10px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg); color: var(--text); }
.count-badge {
  background: var(--approx); color: #fff;
  border-radius: 999px; padding: 0 7px; font-size: 0.74rem; vertical-align: 2px;
}
@media (max-width: 800px) { .review-card { grid-template-columns: 1fr; } }

/* symbol card in the detail drawer */
.symbol-card {
  display: flex; gap: 12px; align-items: center;
  background: var(--bg-inset);
  border-radius: var(--radius);
  padding: 10px;
  margin: 10px 0;
}
.symbol-card .symbol-frame { width: 110px; flex: 0 0 110px; padding: 8px; background: var(--bg-raised); }
.symbol-caption { font-size: 0.78rem; color: var(--text-dim); }

/* ---------- help dialog ---------- */
.help-dialog { border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg-raised); color: var(--text); }
.help-dialog::backdrop { background: rgba(0,0,0,.35); }
.help-dialog td { padding: 3px 10px; }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  /* Small screens: the panel overlays instead of docking. */
  .drawer {
    position: fixed;
    top: 0; right: 0; bottom: 0;
    width: 100vw;
    z-index: 1100;
    box-shadow: var(--shadow);
  }
}

@media (max-width: 720px) {
  .topbar { gap: 8px; }
  .brand { font-size: 0.95rem; }
  .filter-bar { max-height: 32vh; }
  #search-box { width: 130px; }
}

@media (prefers-reduced-motion: no-preference) {
  .drawer { transition: transform 0.18s ease-out; }
  .chip, button { transition: background 0.12s, border-color 0.12s; }
}