:root {
  --bg: #f6f3ee; --surface: #ffffff; --ink: #1f2328; --muted: #5d656e; --line: #ddd6cc;
  --accent: #9b3d2a; --accent-ink: #ffffff; --ok: #2f7d4f; --warn: #a86400; --bad: #b3261e;
  --table: #9aa5ad; --table-leg: #7d878e; --owner: #8a94a0; --monitor-bg: #111418; --monitor-ink: #7cfc98;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #16181b; --surface: #1f2226; --ink: #eceff2; --muted: #a3abb4; --line: #32363c;
    --ok: #5fc08a; --warn: #e0a33a; --bad: #ff7b72; --accent: #e07a5f; --accent-ink: #16181b; --table: #5d666d; --table-leg: #454c52; --owner: #5f6873;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #16181b; --surface: #1f2226; --ink: #eceff2; --muted: #a3abb4; --line: #32363c;
  --ok: #5fc08a; --warn: #e0a33a; --bad: #ff7b72; --accent: #e07a5f; --accent-ink: #16181b; --table: #5d666d; --table-leg: #454c52; --owner: #5f6873;
  color-scheme: dark;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.5 system-ui, -apple-system, "PingFang TC", "Noto Sans TC", sans-serif; }
h1 { font-size: 24px; } h2 { font-size: 18px; } h3 { font-size: 15px; margin: 12px 0 6px; }

.btn { display: inline-block; font: inherit; padding: 8px 14px; border-radius: 8px; border: 1px solid var(--line); background: var(--surface); color: var(--ink); text-decoration: none; cursor: pointer; }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn.ghost { background: none; }

.topbar { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 16px; padding: 8px 16px; background: var(--surface); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5; }
.brand { font-weight: 700; color: inherit; text-decoration: none; margin-right: auto; }
.clock strong { font-variant-numeric: tabular-nums; }
.monitor { display: flex; flex-wrap: wrap; gap: 2px 12px; background: var(--monitor-bg); color: var(--monitor-ink); font: 14px/1.6 ui-monospace, Menlo, monospace; padding: 4px 10px; border-radius: 6px; }
.monitor b { color: #9aa4ad; font-weight: 400; }
.status-stable { color: #7cfc98; } .status-deteriorating { color: #ffcc66; } .status-crashed, .status-dead { color: #ff6b6b; font-weight: 700; }

.stages { display: flex; gap: 6px; list-style: none; margin: 0; padding: 8px 16px; overflow-x: auto; font-size: 14px; }
.stages li { padding: 2px 10px; border-radius: 999px; border: 1px solid var(--line); white-space: nowrap; color: var(--muted); }
.stages li.open { color: var(--ink); }
.stages li.current { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }

.layout { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); grid-template-areas: "scene panel" "log panel"; gap: 16px; padding: 16px; max-width: 1280px; margin: 0 auto; }
.scene-wrap, .panel, .log-wrap { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; }
.scene-wrap { grid-area: scene; position: relative; padding: 8px; }
.panel { grid-area: panel; padding: 12px; min-width: 0; }
.log-wrap { grid-area: log; padding: 12px; }
.log-wrap h2 { margin: 0 0 6px; }
.log { list-style: none; margin: 0; padding: 0; max-height: 200px; overflow: auto; font-size: 14px; }
.log time { color: var(--muted); font-variant-numeric: tabular-nums; margin-right: 6px; }
.log .harm { color: var(--bad); }

.exam-room { width: 100%; height: auto; display: block; }
.exam-room .chest { transform-box: fill-box; transform-origin: center; animation: breathe var(--breath, 3s) ease-in-out infinite; }
@keyframes breathe { 50% { transform: scaleY(1.05); } }
.exam-room.labored .chest { animation-name: breathe-hard; }
@keyframes breathe-hard { 50% { transform: scaleY(1.09); } }
@media (prefers-reduced-motion: reduce) { .exam-room .chest { animation: none; } }
.exam-room.distended .belly { transform-box: fill-box; transform-origin: top; transform: scaleY(1.7); }
.exam-room.collapsed .head { transform: translateY(14px); }
.hit { fill: transparent; stroke: transparent; stroke-width: 2; stroke-dasharray: 4 3; cursor: pointer; }
.hit:hover, .hit:focus-visible { stroke: var(--accent); outline: none; }
.hit.done { stroke: var(--ok); stroke-dasharray: none; stroke-opacity: 0.6; }
.hit[data-region="general"].done, .hit[data-region="general"]:hover { stroke-opacity: 0.3; }
.hit:focus-visible, .hit.done:focus-visible, .hit[data-region="general"]:focus-visible { stroke: var(--accent); stroke-dasharray: 4 3; stroke-opacity: 1; }
.answer { font-style: italic; margin: 0 0 8px; padding: 8px 12px; border: 1px solid var(--line); border-radius: 12px; }
.bubble { position: absolute; right: 12px; top: 12px; max-width: 60%; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 8px 12px; box-shadow: 0 2px 8px rgb(0 0 0 / 0.12); }

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin-bottom: 12px; overflow-x: auto; }
.tab { background: none; border: 0; border-bottom: 2px solid transparent; padding: 8px 12px; font: inherit; color: var(--muted); cursor: pointer; white-space: nowrap; }
.tab.active { color: var(--ink); border-bottom-color: var(--accent); }
.panel-body { max-height: calc(100vh - 220px); overflow: auto; }
.hint { color: var(--muted); margin-top: 0; }
.locked { color: var(--muted); font-style: italic; }
.choices { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 8px; }
.choice { font: inherit; font-size: 14px; text-align: left; padding: 6px 10px; border-radius: 8px; border: 1px solid var(--line); background: var(--bg); color: var(--ink); cursor: pointer; }
.choice.done { border-color: var(--ok); }
.choice:disabled, .choice[aria-disabled="true"] { opacity: 0.55; cursor: not-allowed; }
.findings dt { font-weight: 600; margin-top: 8px; }
.findings dd { margin: 0; }
.search { width: 100%; font: inherit; padding: 6px 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--ink); }
.chips { display: flex; flex-wrap: wrap; gap: 4px; margin: 8px 0; }
.chip { font: inherit; font-size: 13px; padding: 2px 10px; border-radius: 999px; border: 1px solid var(--line); background: none; color: var(--ink); cursor: pointer; }
.chip.active { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.orders { list-style: none; padding: 0; margin: 0; }
.order { padding: 8px 0; border-bottom: 1px solid var(--line); }
.order .meta { display: block; color: var(--muted); font-size: 13px; }
.result-text, .order .result { margin: 4px 0 0; padding: 6px 8px; background: var(--bg); border-radius: 6px; font-size: 14px; }
fieldset { border: 1px solid var(--line); border-radius: 8px; margin: 0 0 12px; }
legend { font-weight: 600; }
.opt { display: flex; gap: 8px; align-items: flex-start; padding: 4px 0; }

.dialog { border: 1px solid var(--line); border-radius: 12px; background: var(--surface); color: var(--ink); max-width: min(520px, calc(100vw - 32px)); }
.dialog::backdrop { background: rgb(0 0 0 / 0.45); }
.toast { position: fixed; left: 50%; bottom: 16px; transform: translateX(-50%); max-width: calc(100vw - 32px); background: var(--ink); color: var(--bg); padding: 10px 14px; border-radius: 8px; z-index: 10; }
.toast.harm { background: var(--bad); color: #ffffff; }

.result, .error { grid-column: 1 / -1; width: 100%; max-width: 760px; margin: 0 auto; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 16px 20px; }
.grade { font-size: 28px; font-weight: 700; margin: 0; }
.grade-excellent, .grade-competent { color: var(--ok); } .grade-needs_work { color: var(--warn); } .grade-unsafe { color: var(--bad); }
.bar { display: grid; grid-template-columns: 160px 1fr 40px; gap: 8px; align-items: center; }
.bar meter { width: 100%; }
.note { color: var(--muted); font-size: 14px; }
.harm { color: var(--bad); }

.hub-main { max-width: 960px; margin: 0 auto; padding: 16px; }
.cases { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 12px; }
.case-card { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 12px 16px; }
.case-card h2 { margin: 0 0 6px; }
.badge { font-size: 12px; padding: 1px 8px; border-radius: 999px; border: 1px solid var(--line); }
.badge-emergency { border-color: var(--bad); color: var(--bad); }

@media (max-width: 760px) {
  .layout { grid-template-columns: minmax(0, 1fr); grid-template-areas: "scene" "panel" "log"; padding: 12px 16px; }
  .panel-body { max-height: none; }
  .bubble { position: static; max-width: none; margin-top: 8px; }
  .bar { grid-template-columns: 110px 1fr 36px; }
  .order .badge-stab { display: block; width: fit-content; margin: 4px 0 0; }
}

.trace { width: 120px; height: 24px; vertical-align: middle; }
.trace path { fill: none; stroke: var(--monitor-ink); stroke-width: 1.2; }
.badge-stab { border-color: var(--accent); color: var(--accent); margin-left: 6px; }
.legend { display: flex; flex-wrap: wrap; gap: 6px 12px; font-size: 13px; margin-bottom: 6px; }
.legend span { border-left: 4px solid var(--line); padding-left: 6px; }
.timeline { list-style: none; padding: 0; margin: 0; }
.timeline li { border-left: 4px solid var(--line); padding: 2px 8px; margin: 2px 0; font-size: 14px; }
.timeline time { color: var(--muted); font-variant-numeric: tabular-nums; margin-right: 6px; }
.timeline li.tone-neutral, .legend span.tone-neutral { border-left-color: var(--line); }
.timeline li.tone-ok, .legend span.tone-ok { border-left-color: var(--ok); }
.timeline li.tone-late, .legend span.tone-late { border-left-color: var(--warn); }
.timeline li.tone-harm, .legend span.tone-harm { border-left-color: var(--bad); color: var(--bad); }
.timeline li.tone-unnecessary, .legend span.tone-unnecessary { border-left-color: var(--muted); color: var(--muted); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.probe-stage { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 12px; align-items: start; }
.probe-3d { position: relative; box-sizing: border-box; height: 220px; overflow: hidden; background: var(--bg); border: 1px solid var(--line); border-radius: 8px; color: var(--muted); font-size: 14px; padding: 8px; }
.probe-3d canvas { position: absolute; inset: 0; display: block; width: 100%; height: 100%; }
.probe-echo { width: 100%; max-width: 320px; height: auto; background: #000; border-radius: 8px; }
.probe-window { display: flex; gap: 16px; flex-wrap: wrap; }
.probe-controls label { display: grid; grid-template-columns: 70px minmax(0, 1fr) 64px; gap: 8px; align-items: center; margin: 6px 0; }
.probe-tasks { list-style: none; padding: 0; }
.probe-tasks li { padding: 4px 0; border-bottom: 1px solid var(--line); }
.probe-tasks li.done b { color: var(--ok); }
.probe-measure label { display: block; margin: 6px 0; }
@media (max-width: 760px) { .probe-stage { grid-template-columns: minmax(0, 1fr); } }
.echo-dialog { width: min(900px, calc(100vw - 32px)); max-width: none; }
.mark-dot { color: #ff9800; } /* same orange as the index mark on the echo image and 3D probe */