:root {
  --bg: #f4f2ed; --panel: #ffffff; --fg: #1d1c1a; --muted: #6b6761; --line: #dcd7cd; --soft: #ece8df;
  --accent: #b4541c; --accent-fg: #ffffff; --ok: #1f7a46; --warn: #a66a00; --bad: #b3261e; --info: #2a5fb8;
  --wall: #26241f; --floor: #ebe5d8; --obst: #b7a684; --path: #2a6fdb; --aruco: #d2461e; --item: #1f9d55; --note: #8e44ad; --sel: #e8a000;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #141518; --panel: #1c1d22; --fg: #e9e6e0; --muted: #9b968e; --line: #2e3037; --soft: #24262c;
    --accent: #e2884e; --accent-fg: #1a1208; --ok: #5cc68a; --warn: #e0a640; --bad: #f07a70; --info: #7aa7f0;
    --wall: #ece7dc; --floor: #2a2925; --obst: #776a52; --path: #6a9cf0; --aruco: #f07050; --item: #4fd08a; --note: #c38be0; --sel: #ffc53d;
    color-scheme: dark; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 14px/1.55 "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", system-ui, sans-serif;
  padding-top: env(safe-area-inset-top, 0px); padding-bottom: env(safe-area-inset-bottom, 0px); }
a { color: var(--accent); }
h1 { font-size: 1.35rem; margin: 0; text-wrap: balance; letter-spacing: .01em; }
h2 { font-size: 1rem; margin: 0 0 10px; }
[hidden] { display: none !important; }
.wrap { max-width: 1180px; margin: 0 auto; padding-block: 20px 48px;
  padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px));
  display: grid; gap: 18px; }
.muted { color: var(--muted); }
.mono { font-family: var(--mono); font-size: .92em; }
.num { font-variant-numeric: tabular-nums; }

/* top bar */
.bar { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 10; background: var(--panel); border-bottom: 1px solid var(--line); }
.bar-in { max-width: 1180px; margin: 0 auto; display: flex; align-items: center; gap: 18px; min-height: 52px; flex-wrap: wrap;
  padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); }
.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; color: var(--fg); text-decoration: none; letter-spacing: .04em; }
.mark { width: 18px; height: 18px; border-radius: 4px; background: var(--accent);
  background-image: linear-gradient(90deg, transparent 45%, var(--accent-fg) 45% 55%, transparent 55%); opacity: .95; }
nav { display: flex; gap: 4px; flex-wrap: wrap; }
nav a { color: var(--muted); text-decoration: none; padding: 6px 10px; border-radius: 6px; }
nav a.on { color: var(--fg); background: var(--soft); font-weight: 600; }
.who { margin-left: auto; color: var(--muted); display: flex; gap: 10px; align-items: center; }

/* panels */
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 16px; min-width: 0; }
.head { display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap; justify-content: space-between; }
.head .sub { color: var(--muted); margin-top: 4px; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.grid2 { display: grid; gap: 18px; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
@media (max-width: 760px) { .grid2 { grid-template-columns: minmax(0, 1fr); } }

button, .btn { font: inherit; border: 1px solid var(--line); background: var(--panel); color: var(--fg); border-radius: 7px;
  padding: 6px 12px; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; gap: 6px; min-height: 34px; }
button:hover, .btn:hover { border-color: var(--muted); }
button.primary { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); font-weight: 600; }
button.danger { color: var(--bad); border-color: color-mix(in srgb, var(--bad) 45%, var(--line)); }
button:disabled { opacity: .5; cursor: default; }
input[type=text], input[type=password] { font: inherit; color: var(--fg); background: var(--bg); border: 1px solid var(--line);
  border-radius: 7px; padding: 8px 10px; width: 100%; min-height: 38px; }
input:focus-visible, button:focus-visible, a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
label.f { display: grid; gap: 4px; font-weight: 600; font-size: .92rem; }
.err { color: var(--bad); min-height: 1.4em; }

/* login */
.login { max-width: 380px; margin: 9vh auto 0; display: grid; gap: 14px; }
.login h1 { display: flex; gap: 10px; align-items: center; }

/* chips */
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 2px 9px; border-radius: 999px; font-size: .85rem;
  border: 1px solid currentColor; white-space: nowrap; line-height: 1.6; }
.chip::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.s-done { color: var(--ok); } .s-error { color: var(--bad); } .s-processing, .s-queued { color: var(--info); }
.s-uploading { color: var(--warn); } .s-warn { color: var(--warn); }
.s-processing::before, .s-uploading::before { animation: pulse 1.2s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: .25; } }
@media (prefers-reduced-motion: reduce) { .s-processing::before, .s-uploading::before { animation: none; } }

/* tables */
.tbl-wrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: .8rem; color: var(--muted); font-weight: 600; letter-spacing: .04em; white-space: nowrap; }
tr.click { cursor: pointer; } tr.click:hover td { background: var(--soft); }
td .k { color: var(--muted); font-size: .85rem; }
tr.hl td { background: color-mix(in srgb, var(--item) 14%, transparent); }
@media (max-width: 680px) {
  table.cards thead { display: none; }
  table.cards, table.cards tbody, table.cards tr, table.cards td { display: block; width: 100%; }
  table.cards tr { border: 1px solid var(--line); border-radius: 9px; margin-bottom: 10px; padding: 6px 4px; background: var(--panel); }
  table.cards td { border: 0; padding: 4px 10px; }
  table.cards td[data-l]::before { content: attr(data-l); color: var(--muted); font-size: .8rem; display: inline-block; min-width: 4.5em; }
}

/* scan detail */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 10px; }
.stat { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; }
.stat b { display: block; font-size: 1.5rem; font-variant-numeric: tabular-nums; line-height: 1.2; }
.stat span { color: var(--muted); font-size: .85rem; }
.steps { display: flex; flex-wrap: wrap; gap: 0; counter-reset: s; }
.step { display: flex; align-items: center; gap: 8px; padding: 6px 14px 6px 0; }
.step + .step::before { content: ""; width: 18px; height: 1px; background: var(--line); margin-right: 6px; }
.dot { width: 10px; height: 10px; border-radius: 50%; border: 2px solid currentColor; flex: none; }
.st-ok { color: var(--ok); } .st-ok .dot { background: currentColor; }
.st-failed { color: var(--bad); } .st-failed .dot { background: currentColor; }
.st-running { color: var(--info); } .st-running .dot { animation: pulse 1.2s infinite; }
.step small { color: var(--muted); }
.tabs { display: flex; gap: 6px; padding: 2px 2px 10px; border-bottom: 1px solid var(--line); overflow-x: auto; scrollbar-width: none; }
.tabs button { border: 1px solid var(--line); border-radius: 8px; background: var(--soft); color: var(--fg); padding: 7px 14px; white-space: nowrap; cursor: pointer;
  transition: background .15s, border-color .15s, color .15s; }
.tabs button:hover { background: color-mix(in srgb, var(--accent) 14%, var(--soft)); border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); }
.tabs button.on { background: var(--accent); border-color: var(--accent); color: var(--accent-fg); font-weight: 600; }
.tabs button:focus-visible { outline-offset: -4px; outline-color: var(--accent-fg); }
.tabs button:not(.on):focus-visible { outline-color: var(--accent); }
.pane { padding-top: 14px; min-width: 0; }

.plan-box { position: relative; background: var(--bg); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; touch-action: none; }
.plan-box svg { display: block; width: 100%; height: min(70vh, 640px); cursor: grab; }
.plan-box svg.drag { cursor: grabbing; }
.plan-tools { position: absolute; right: 8px; top: 8px; display: flex; gap: 4px; }
.plan-tools button { min-height: 30px; padding: 2px 9px; background: var(--panel); }
.legend { display: flex; flex-wrap: wrap; gap: 6px 16px; color: var(--muted); font-size: .85rem; margin-top: 8px; }
.legend label { display: inline-flex; align-items: center; gap: 6px; cursor: pointer; }
.sw { width: 14px; height: 10px; border-radius: 2px; display: inline-block; }
.tip { margin-top: 8px; min-height: 1.6em; font-size: .92rem; }
.cad-box { --cad-bg: #15171b; --cad-fg: #f2f2f2; position: relative; background: var(--cad-bg); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; touch-action: none; color-scheme: dark; }
.cad-box.light { --cad-bg: #ffffff; --cad-fg: #111111; color-scheme: light; }
.cad-box svg { display: block; width: 100%; height: min(70vh, 640px); cursor: grab; }
.cad-box svg.drag { cursor: grabbing; }
.cad-box svg.measure { cursor: crosshair; }
.cad-box .empty { color: #9aa0a8; height: 240px; display: grid; place-items: center; }
.cad-t { font-family: var(--mono); }
.plan-tools button.on { background: var(--sel); color: #1a1406; border-color: var(--sel); }
.cad-status { position: absolute; left: 8px; bottom: 8px; display: flex; gap: 14px; flex-wrap: wrap; font-size: 12px; color: var(--cad-fg);
  background: color-mix(in srgb, var(--cad-bg) 80%, transparent); border-radius: 6px; padding: 3px 8px; max-width: calc(100% - 16px); pointer-events: none; }
.legend .ldesc { font-size: .8rem; }
.legend small { color: var(--muted); font-variant-numeric: tabular-nums; }
.cad-info { font-size: .82rem; margin-top: 6px; }
.view3d { height: min(70vh, 620px); background: #101317; border: 1px solid var(--line); border-radius: 8px; position: relative; overflow: hidden; }
.v3-labels { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.v3-lab { position: absolute; left: 0; top: 0; pointer-events: auto; font: 600 12px/1.2 var(--mono); padding: 2px 6px; min-height: 0;
  border-radius: 5px; border: 1px solid var(--c); background: rgba(16, 19, 23, .82); color: #f2f2f2; white-space: nowrap; cursor: pointer; }
.v3-lab::before { content: ""; display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--c); margin-right: 5px; vertical-align: 1px; }
.v3-lab.sel { background: var(--sel); border-color: var(--sel); color: #1a1406; z-index: 2; }
.v3-lab.sel::before { background: #1a1406; }
.v3-ui { position: absolute; right: 8px; top: 8px; display: grid; gap: 6px; background: rgba(16, 19, 23, .82); color: #e8e8e8;
  border: 1px solid #2c323a; border-radius: 8px; padding: 8px 10px; font-size: 12px; max-width: calc(100% - 16px); }
.v3-ui label { display: flex; align-items: center; gap: 8px; cursor: pointer; }
.v3-ui input[type=range] { width: 120px; accent-color: #ffc53d; }
.v3-ui b { font-weight: 600; min-width: 4.5em; color: #ffc53d; }
.v3-ui input[type=checkbox] { accent-color: #ffc53d; }
.v3-legend { position: absolute; left: 8px; bottom: 8px; display: flex; flex-wrap: wrap; gap: 4px 12px; background: rgba(16, 19, 23, .82); color: #e8e8e8;
  border-radius: 8px; padding: 6px 10px; font-size: 12px; max-width: calc(100% - 16px); pointer-events: none; }
.v3-legend span { display: inline-flex; align-items: center; gap: 5px; }
.v3-legend i { width: 12px; height: 10px; border-radius: 2px; display: inline-block; }
.view3d canvas { display: block; width: 100%; height: 100%; touch-action: none; }
.view3d .msg { position: absolute; inset: 0; display: grid; place-items: center; color: var(--muted); }

.notes { display: grid; gap: 10px; }
.note { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 4px 14px; align-items: center; border: 1px solid var(--line); border-radius: 9px; padding: 10px 12px; }
.note audio { width: 100%; max-width: 420px; height: 36px; }
.photos { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 8px; }
.photos a { display: block; aspect-ratio: 4/3; border-radius: 6px; overflow: hidden; background: var(--soft); max-width: 100%; }
.photos img { width: 100%; height: 100%; object-fit: cover; display: block; }
pre.log { font-family: var(--mono); font-size: 12px; background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: 12px;
  max-height: 60vh; overflow: auto; white-space: pre-wrap; word-break: break-all; margin: 0; }
.files { display: grid; gap: 6px; }
.file { display: flex; gap: 10px; align-items: center; justify-content: space-between; border: 1px solid var(--line); border-radius: 8px; padding: 8px 12px; flex-wrap: wrap; }
.file .what { color: var(--muted); font-size: .85rem; }
.confirm { display: inline-flex; gap: 6px; align-items: center; flex-wrap: wrap; }

.drop { border: 1.5px dashed var(--line); border-radius: 10px; padding: 14px; display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.drop.over { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 8%, transparent); }
.prog { height: 6px; background: var(--soft); border-radius: 3px; overflow: hidden; width: 100%; max-width: 260px; }
.prog i { display: block; height: 100%; background: var(--accent); width: 0; transition: width .2s; }
.token { font-family: var(--mono); background: var(--bg); border: 1px dashed var(--accent); border-radius: 8px; padding: 10px 12px; word-break: break-all; user-select: all; }
.toast { position: fixed; left: 50%; bottom: calc(18px + env(safe-area-inset-bottom, 0px)); transform: translateX(-50%); background: var(--fg); color: var(--bg);
  padding: 8px 14px; border-radius: 8px; z-index: 50; max-width: calc(100% - 32px); }
.empty { padding: 28px; text-align: center; color: var(--muted); }

/* selection on the plan */
svg .mk { cursor: pointer; outline: none; }
svg .mk .halo { display: none; fill: none; stroke: var(--sel); stroke-width: 0.05; transform-box: fill-box; transform-origin: center; }
svg .mk.sel .halo { display: inline; animation: halo 1.6s ease-out infinite; }
svg .mk.sel .shape { fill: var(--sel); stroke: var(--fg); }
svg .mk.sel text { fill: var(--sel); font-size: 0.26px; }
svg .mk:focus-visible .shape { stroke: var(--fg); stroke-width: 0.05; }
@keyframes halo { from { transform: scale(0.6); opacity: 1; } to { transform: scale(1.6); opacity: 0; } }
@media (prefers-reduced-motion: reduce) { svg .mk.sel .halo { animation: none; } }

/* plan / 3D + side panel */
.with-side { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 16px; align-items: start; }
@media (max-width: 900px) { .with-side { grid-template-columns: minmax(0, 1fr); } }
.side { border: 1px solid var(--line); border-radius: 8px; padding: 14px; display: grid; gap: 10px; min-width: 0; background: var(--panel);
  max-height: min(78vh, 720px); overflow-y: auto; }
.side-empty { color: var(--muted); } .side-empty b { color: var(--fg); } .side-empty p { margin: 4px 0 0; }
.side-head { display: flex; gap: 10px; align-items: center; }
.side-head b { font-size: 1.15rem; }
.side-head .k { color: var(--muted); font-size: .8rem; }
.side-head .x { margin-left: auto; min-height: 30px; padding: 0 10px; font-size: 1.1rem; }
.sel-dot { width: 14px; height: 14px; transform: rotate(45deg); background: var(--sel); border: 1.5px solid var(--fg); flex: none; }
.side .k { color: var(--muted); font-size: .85rem; }
.kv { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 3px 12px; margin: 0; }
.kv dt { color: var(--muted); } .kv dd { margin: 0; }
.side-audio { width: 100%; }
.side-photos { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.ph { position: relative; display: block; padding: 0; border: 1px solid var(--line); border-radius: 6px; overflow: hidden; background: var(--soft);
  aspect-ratio: 3 / 4; min-height: 0; cursor: zoom-in; width: 100%; }
.ph.big { grid-column: 1 / -1; }
.ph img { width: 100%; height: 100%; object-fit: cover; display: block; }
.ring { position: absolute; width: 18%; aspect-ratio: 1; transform: translate(-50%, -50%); border: 3px solid var(--sel);
  border-radius: 50%; box-shadow: 0 0 0 2px rgba(0, 0, 0, .45), inset 0 0 0 2px rgba(0, 0, 0, .35); pointer-events: none; }
.ph .cap { position: absolute; left: 0; right: 0; bottom: 0; padding: 3px 7px; font-size: .75rem; color: #fff; background: linear-gradient(transparent, rgba(0, 0, 0, .65)); text-align: left; }
.lb { position: fixed; inset: 0; z-index: 60; background: rgba(10, 10, 12, .82); display: grid; place-items: center;
  padding: max(12px, env(safe-area-inset-top, 0px)) max(12px, env(safe-area-inset-right, 0px)) max(12px, env(safe-area-inset-bottom, 0px)) max(12px, env(safe-area-inset-left, 0px)); }
.lb-in { display: grid; gap: 10px; max-width: 100%; max-height: 100%; justify-items: center; }
.lb-img { position: relative; line-height: 0; }
.lb-img img { max-width: min(96vw, 1100px); max-height: calc(100vh - 110px); width: auto; height: auto; border-radius: 6px; }
.lb-img .ring { width: 12%; }
.lb-bar { background: var(--panel); border-radius: 8px; padding: 6px 10px; justify-content: center; }
@media (max-width: 900px) { .cad-box svg { height: clamp(260px, 85vw, 60vh); } .plan-box svg { height: clamp(260px, 85vw, 60vh); } .side { max-height: none; } }