:root {
  --bg: #f5f6f8;
  --panel: #ffffff;
  --ink: #1b1f24;
  --muted: #5b6472;
  --border: #dfe3e8;
  --accent: #2454b3;
  --pass: #1e7d3a;
  --pass-bg: #e6f4ea;
  --fail: #b3261e;
  --fail-bg: #fbe9e7;
  --warn: #8a5a00;
  --warn-bg: #fff4dd;
  --info-bg: #eef2f9;
  --radius: 10px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171c;
    --panel: #1d2127;
    --ink: #e7eaee;
    --muted: #9aa4b2;
    --border: #2c323b;
    --accent: #6ea1ff;
    --pass: #6fd08c;
    --pass-bg: #163322;
    --fail: #ff8b83;
    --fail-bg: #3a1c1a;
    --warn: #f0c05a;
    --warn-bg: #3a2f10;
    --info-bg: #202634;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.45;
}

.app-header, .app-footer {
  max-width: 900px;
  margin: 0 auto;
  padding: 20px 20px 8px;
}

.app-header h1 { margin-bottom: 6px; font-size: 1.5rem; }
.brand-link {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--muted);
  margin-left: 8px;
  vertical-align: middle;
}
.brand-link a { color: var(--muted); text-decoration: none; }
.brand-link a:hover { color: var(--accent); text-decoration: underline; }

.disclaimer {
  background: var(--warn-bg);
  color: var(--warn);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
  font-size: 0.9rem;
}

.app-footer {
  color: var(--muted);
  font-size: 0.8rem;
  padding-bottom: 40px;
}

/* Floats over the page in the top-right corner rather than reserving a
   full-width row -- the checklist below flows at its normal full width,
   unaffected by (and passing underneath) this widget. */
.cage-viewer-row {
  position: fixed;
  top: 12px;
  right: 12px;
  width: 600px;
  max-width: calc(100vw - 24px);
  max-height: calc(100vh - 24px);
  z-index: 20;
}
.cage-viewer-panel {
  padding: 10px 12px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
}
.cage-viewer-header {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 6px;
}
.cage-viewer-header strong { font-size: 0.85rem; }
.cage-viewer-hint {
  /* Too little room for this at floating-widget width -- the button
     titles/tooltips still cover drag/scroll/pan. */
  display: none;
}
.cage-viewer-container {
  position: relative;
  width: 100%;
  height: 340px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
}
.cage-viewer-container canvas { display: block; }
/* Branding watermark so a screenshot of the 3D view carries the Frog Racing
   logo -- positioned/sized to stay out of the way of the model itself, and
   pointer-events:none so it never intercepts the drag/zoom/click handlers
   cage_view.js attaches to the canvas underneath it. */
.cage-viewer-watermark {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 44px;
  height: 44px;
  opacity: 0.8;
  pointer-events: none;
  z-index: 2;
}

#app {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px 40px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
}

.panel h2 { margin-top: 0; font-size: 1.1rem; }

.field-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 10px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1 1 200px;
}

.field label { font-size: 0.82rem; color: var(--muted); }

input[type="text"], input[type="date"], select, textarea {
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--ink);
  font-size: 0.95rem;
  font-family: inherit;
}

textarea { resize: vertical; min-height: 50px; }

.radio-group { display: flex; gap: 14px; flex-wrap: wrap; }
.radio-group label { display: flex; align-items: center; gap: 6px; font-size: 0.9rem; color: var(--ink); }

.path-suggestion {
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 4px;
}

.btn {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 9px 16px;
  font-size: 0.9rem;
  cursor: pointer;
}
.btn.secondary {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}
.btn.small { padding: 5px 10px; font-size: 0.8rem; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.toolbar { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 6px; }

.category-heading {
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.75rem;
  color: var(--muted);
  margin: 18px 0 4px;
}

.phase-tabs {
  display: flex;
  gap: 4px;
  border-bottom: 2px solid var(--border);
  margin-bottom: 16px;
  /* Sits above the floating live-cage-model widget (z-index 20) -- that
     widget is fixed at top-right of the viewport and can otherwise overlap
     this row (and silently eat clicks) on any window narrower than roughly
     #app's max-width plus the widget's own width. */
  position: relative;
  z-index: 21;
}
.phase-tab {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  padding: 8px 14px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
}
.phase-tab:hover { color: var(--ink); }
.phase-tab.active { color: var(--accent); border-bottom-color: var(--accent); }

.element-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  margin-bottom: 10px;
  background: var(--panel);
}

.element-card.state-pass { border-left: 4px solid var(--pass); }
.element-card.state-fail { border-left: 4px solid var(--fail); }
.element-card.state-warn { border-left: 4px solid var(--warn); }
.element-card.state-neutral { border-left: 4px solid var(--border); }

.element-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
}

.element-name { font-weight: 600; }

.collapsed-card { padding: 0; }
.collapsed-head {
  padding: 10px 14px;
  cursor: pointer;
  justify-content: flex-start;
}
.collapsed-head:hover { background: var(--info-bg); border-radius: var(--radius); }
.collapsed-summary {
  color: var(--muted);
  font-size: 0.82rem;
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.collapse-btn { margin-left: auto; }

.badge {
  display: inline-block;
  font-size: 0.7rem;
  padding: 2px 7px;
  border-radius: 999px;
  background: var(--info-bg);
  color: var(--muted);
  white-space: nowrap;
}
.badge.req { background: var(--fail-bg); color: var(--fail); }
.badge.rec { background: var(--info-bg); color: var(--accent); }
.badge.cond { background: var(--warn-bg); color: var(--warn); }
.badge.exc { background: var(--warn-bg); color: var(--warn); }
.badge.info { background: var(--info-bg); color: var(--muted); }

.element-ref {
  font-size: 0.75rem;
  color: var(--muted);
}

.element-desc {
  font-size: 0.88rem;
  color: var(--muted);
  margin: 6px 0 10px;
}

.answer-row { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 8px; }

.answer-btn {
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--ink);
  border-radius: 8px;
  padding: 6px 12px;
  font-size: 0.85rem;
  cursor: pointer;
}
.answer-btn.active.yes { background: var(--pass-bg); border-color: var(--pass); color: var(--pass); }
.answer-btn.active.no { background: var(--fail-bg); border-color: var(--fail); color: var(--fail); }
.answer-btn.active.unsure { background: var(--warn-bg); border-color: var(--warn); color: var(--warn); }
.answer-btn.active.info { background: var(--info-bg); border-color: var(--accent); color: var(--accent); }

.choice-select { max-width: 420px; }

.element-diagram {
  width: 100%;
  max-width: 220px;
  margin: 4px 0 10px;
  color: var(--muted);
}
.element-diagram svg, .element-diagram img { width: 100%; height: auto; display: block; border-radius: 6px; }

.choice-radio-group {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 10px;
  margin: 6px 0 4px;
}

.choice-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 8px 8px;
  cursor: pointer;
  text-align: center;
  background: var(--bg);
}
.choice-option.selected {
  border-color: var(--accent);
  background: var(--info-bg);
}
.choice-option input[type="radio"] { align-self: flex-start; margin: 0; }
.choice-diagram { width: 100%; max-width: 110px; color: var(--muted); }
.choice-diagram svg, .choice-diagram img { width: 100%; height: auto; display: block; border-radius: 6px; }
.choice-label { font-size: 0.82rem; }

.diagram-legend {
  display: flex;
  flex-direction: column;
  gap: 1px;
  font-size: 0.62rem;
  font-weight: 600;
  line-height: 1.3;
  margin-top: 2px;
}

.tubing-block { margin: 10px 0 4px; display: flex; flex-direction: column; gap: 8px; }
.tubing-field {
  border-left: 3px solid var(--border);
  padding: 4px 0 4px 10px;
}
.tubing-field.state-pass { border-left-color: var(--pass); }
.tubing-field.state-fail { border-left-color: var(--fail); }
.tubing-field.state-warn { border-left-color: var(--warn); }
.tubing-label { font-size: 0.82rem; color: var(--muted); margin-bottom: 4px; text-transform: capitalize; }
.tubing-field select { max-width: 340px; }

.tubing3-fields { display: flex; gap: 14px; flex-wrap: wrap; margin: 4px 0; }
.tubing3-field { display: flex; flex-direction: column; gap: 3px; font-size: 0.78rem; color: var(--muted); }
.tubing3-field select, .tubing3-field input { font-size: 0.85rem; }
.tubing3-field .dim-other-value { max-width: 90px; }

.numeric-row { display: flex; align-items: center; gap: 6px; margin: 6px 0; }
.extra-field-row { display: flex; align-items: center; gap: 10px; margin: 6px 0; flex-wrap: wrap; }
.extra-field-row .answer-row { margin: 0; }
.numeric-input { max-width: 120px; }
.numeric-field-label { flex: 1; font-size: 0.85rem; }
.unit-label { color: var(--muted); font-size: 0.85rem; }

.row-table-wrap { overflow-x: auto; margin: 8px 0; }
.row-table { border-collapse: collapse; width: 100%; font-size: 0.82rem; }
.row-table th, .row-table td { border: 1px solid var(--border); padding: 6px 8px; text-align: left; vertical-align: top; }
.row-table th { background: var(--info-bg); white-space: nowrap; }
.row-table td.state-pass { background: var(--pass-bg); }
.row-table td.state-fail { background: var(--fail-bg); }
.row-table td.state-warn { background: var(--warn-bg); }
.row-table-label { white-space: normal; font-weight: 600; max-width: 220px; }
@keyframes row-flash-fade {
  0% { background: var(--fail-bg); box-shadow: 0 0 0 2px var(--fail) inset; }
  100% { background: transparent; box-shadow: 0 0 0 2px transparent inset; }
}
.row-table tr.row-flash td { animation: row-flash-fade 1.6s ease-out; }
.row-table select, .row-table input[type="text"], .row-table input[type="number"] { width: 100%; min-width: 90px; font-size: 0.8rem; }
.row-table .tubing3-fields { flex-direction: column; gap: 4px; }
.row-table .cell-answer-row { display: flex; gap: 4px; }
.answer-btn.small { padding: 3px 8px; font-size: 0.78rem; }

.area-cell { flex-wrap: wrap; align-items: center; }
.area-mode-toggle { width: 100%; gap: 4px; }
.row-table .cell-number.small { width: 55px; min-width: 55px; }
.area-xy-sep, .area-computed { font-size: 0.78rem; color: var(--muted); white-space: nowrap; }

.photo-row { display: flex; gap: 8px; flex-wrap: wrap; margin: 8px 0; }
.photo-thumb { position: relative; width: 64px; height: 64px; border-radius: 6px; overflow: hidden; border: 1px solid var(--border); }
.photo-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.photo-thumb button {
  position: absolute; top: 0; right: 0; background: rgba(0,0,0,0.6); color: #fff;
  border: none; width: 18px; height: 18px; font-size: 11px; line-height: 1; cursor: pointer;
}

.note-input { width: 100%; margin-top: 6px; }

.visual-flag { font-size: 0.72rem; color: var(--muted); margin-top: 4px; }

.results-panel {
  position: sticky;
  bottom: 12px;
  z-index: 5;
  max-height: min(60vh, 520px);
  overflow-y: auto;
  box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.25);
}

.results-panel-collapsed {
  max-height: none;
  overflow: visible;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 10px 14px;
}
.results-panel-collapsed .results-summary { color: var(--muted); font-size: 0.85rem; flex: 1; }
.verdict.compact { padding: 6px 12px; margin: 0; font-size: 0.9rem; }

.results-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.results-header h2 { margin: 0; }

.verdict {
  font-size: 1.05rem;
  font-weight: 700;
  padding: 10px 14px;
  border-radius: 8px;
  margin-bottom: 10px;
}
.verdict.pass { background: var(--pass-bg); color: var(--pass); }
.verdict.fail { background: var(--fail-bg); color: var(--fail); }
.verdict.warn { background: var(--warn-bg); color: var(--warn); }

.score-bar-outer {
  background: var(--border);
  border-radius: 999px;
  height: 8px;
  overflow: hidden;
  margin: 6px 0 10px;
}
.score-bar-inner { height: 100%; background: var(--accent); }

.issue-list { margin: 0; padding-left: 20px; font-size: 0.88rem; }
.issue-list li { margin-bottom: 4px; }

.session-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: var(--muted);
}
.session-bar-group {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.session-bar-name-input {
  min-width: 180px;
  padding: 5px 8px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--ink);
  font-size: 0.85rem;
}
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media print {
  .app-footer, .toolbar, .session-bar, .answer-row, .photo-row, .btn { display: none !important; }
  .results-panel { position: static; }
  body { background: #fff; color: #000; }
}