/* Shared design system for every page (hologram.html, index.html, platform/index.html).
   One set of tokens and base controls so the project reads as one product. Page files keep
   only their own layout. Calm by design: short opacity/colour transitions only, none under
   reduced motion, and nothing that blinks (see BUGS.md #14 / safety-test.html). */
:root {
  --bg: #0a0d11;
  --panel: #10161d;
  --panel-2: #0c1117;
  --line: #1d2935;
  --line-2: #2a3a4a;
  --text: #d6e4ef;
  --muted: #8196a8;
  --faint: #56687a;
  --accent: #4fd1ff;
  --accent-soft: rgba(79, 209, 255, 0.12);
  --select: #ffb040;
  --warm: #ffd166;
  --ok: #7fd6a1;
  --err: #ff7a7a;
  --radius: 6px;
  --gap: 8px;
  --bar-h: 48px;
  --status-h: 28px;
  --side-w: 300px;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; height: 100%; background: var(--bg); color: var(--text); overflow: hidden; }
body { font: 13px/1.45 var(--sans); }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }

button, select, input { font: inherit; color: inherit; }
button {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px; height: 30px; padding: 0 10px;
  color: var(--text); background: var(--panel-2); border: 1px solid var(--line-2);
  border-radius: var(--radius); cursor: pointer; white-space: nowrap;
  transition: background .12s, border-color .12s, color .12s;
}
button:hover:not(:disabled) { background: var(--accent-soft); border-color: rgba(79,209,255,.45); }
button:focus-visible, input:focus-visible, select:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
button:disabled { opacity: .4; cursor: default; }
button.primary { color: #06131a; background: var(--accent); border-color: var(--accent); font-weight: 600; }
button.primary:hover:not(:disabled) { background: #7fdfff; }
button.active { color: var(--select); border-color: rgba(255,176,64,.6); background: rgba(255,176,64,.08); }
button.ghost { background: none; border-color: transparent; color: var(--muted); }
button.ghost:hover:not(:disabled) { color: var(--text); }
input[type=range], input[type=checkbox] { accent-color: var(--accent); }
kbd { font: 11px var(--mono); padding: 1px 5px; border: 1px solid var(--line-2); border-radius: 4px; color: var(--text); }

/* App shell pieces */
.topbar {
  display: flex; align-items: center; gap: var(--gap); padding: 0 12px; min-width: 0; overflow-x: auto;
  background: var(--panel); border-bottom: 1px solid var(--line);
}
.brand { font-weight: 700; letter-spacing: .02em; margin-right: 6px; white-space: nowrap; }
.brand span { color: var(--accent); }
.brand a { color: inherit; text-decoration: none; }
.sep { width: 1px; height: 22px; background: var(--line); margin: 0 2px; flex: none; }
.spacer { flex: 1; }
.side { display: flex; flex-direction: column; min-height: 0; background: var(--panel); overflow-y: auto; }
.side h2, .section-title {
  margin: 0; padding: 12px 14px 10px; font-size: 11px; font-weight: 600; letter-spacing: .08em;
  text-transform: uppercase; color: var(--muted);
}
.statusbar {
  display: flex; align-items: center; gap: 14px; padding: 0 12px; min-width: 0;
  background: var(--panel); border-top: 1px solid var(--line);
  font: 12px var(--mono); color: var(--muted); white-space: nowrap; overflow: hidden;
}
.statusbar > span { overflow: hidden; text-overflow: ellipsis; }
.statusbar > span:empty { display: none; }
.pill {
  display: inline-flex; align-items: center; height: 24px; padding: 0 10px; border-radius: 999px;
  border: 1px solid var(--line-2); color: var(--muted); font-size: 11px; letter-spacing: .08em; text-transform: uppercase;
}
.note { color: var(--faint); font-size: 12px; line-height: 1.55; margin: 0; }

/* ---- measurement panel (measurePanel.js), shared by hologram.html and index.html ---- */
    #measure { padding: 12px 12px 14px; font-size: 12px; }
.measure-head { display: flex; align-items: center; justify-content: space-between; margin: 2px 2px 10px; }
.measure-title, #measure .panel-title { font-size: 11px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin: 0; }
#measure .panel-title { display: flex; justify-content: space-between; align-items: center; }
button.unit { height: 24px; padding: 0 8px; font-size: 11px; }
.measure-dims { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
.dim { background: var(--panel-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 8px 4px; text-align: center; }
.dim-k { display: block; font-size: 10px; color: var(--faint); letter-spacing: .1em; }
.dim-v { display: block; font: 13px var(--mono); color: var(--text); margin-top: 2px; }
.measure-scaled { margin-top: 8px; font-size: 12px; color: var(--warm); }
.measure-stats, .measure-tape, .measure-fit { margin-top: 8px; font-size: 12px; color: var(--muted); line-height: 1.5; }
.measure-fit.ok { color: var(--ok); }
.measure-fit.bad { color: #ff9a7a; }
button.wide { width: 100%; margin-top: 10px; }
.fit-row { display: flex; align-items: center; gap: 6px; }
.fit-input { width: 100%; min-width: 0; height: 28px; font-size: 12px; padding: 0 8px; background: var(--bg); border: 1px solid var(--line-2); border-radius: 4px; }
select.fit-input { cursor: pointer; }
.fit-x, .fit-unit { color: var(--faint); font-size: 12px; }
.sec { border-top: 1px solid var(--line); }
.sec:first-of-type { border-top: none; }
.sec-head {
  display: flex; width: 100%; height: auto; justify-content: space-between; padding: 10px 2px;
  background: none; border: 0; border-radius: 0; font-size: 11px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--muted);
}
.sec-head:hover:not(:disabled) { background: none; color: var(--text); }
.sec-caret { color: var(--faint); }
.sec-body { padding-bottom: 12px; }
.surface-row { display: flex; gap: 8px; align-items: baseline; padding: 2px 0; }
.surface-h { color: var(--accent); min-width: 62px; font-family: var(--mono); }
.surface-d { color: var(--muted); font-size: 12px; }
/* The tape is the big everyday toggle; Report's sub-sections sit indented. The toggle's text
   is lowercase on purpose (test.js finds "pick two points"). Moved from hologram.html so
   index.html's panel gets them too. */
#measure .tape-toggle { display: block; height: 40px; font-size: 14px; color: var(--text); background: var(--panel-2); border-color: var(--line-2); }
#measure .tape-toggle::first-letter { text-transform: uppercase; }
#measure .tape-toggle.active { color: var(--select); border-color: rgba(255,176,64,.6); background: rgba(255,176,64,.08); }
#measure .report-body { padding-left: 10px; border-left: 1px solid var(--line); }
#measure .report-export { margin-top: 12px; }
.measure-caveat { margin-top: 8px; font-size: 11px; line-height: 1.5; color: #ff9a7a; border-left: 2px solid rgba(255,154,122,.5); padding-left: 8px; }
.note-list { margin-top: 8px; display: grid; gap: 6px; }
.note-row { display: flex; gap: 6px; align-items: center; }
.note-row .fit-input { flex: 1; }
button.note-del { height: 28px; padding: 0 8px; }
.note-label {
  position: absolute; transform: translate(10px, -50%);
  background: rgba(12,17,23,.92); border: 1px solid rgba(127,214,161,.55); border-radius: 4px;
  padding: 2px 6px; white-space: nowrap; font: 11px var(--mono); color: var(--ok);
  max-width: 220px; overflow: hidden; text-overflow: ellipsis;
}


.note-layer { position: absolute; inset: 0; z-index: 3; pointer-events: none; }

/* Active-tool chip + Done button (toolWheel.js createToolStatus; hologram.html and the Platform).
   The chip always names the tool your hands are in; the Done button is the way back. Colour
   eases on change, never blinks (BUGS #14). Phones keep the icon only. */
.tool-chip {
  display: inline-flex; align-items: center; gap: 5px; height: 26px; padding: 0 9px; flex: none;
  border: 1px solid var(--line-2); border-radius: 13px; color: var(--muted); font-size: 12px; white-space: nowrap;
  max-width: 260px; overflow: hidden; transition: color .2s ease, border-color .2s ease, background .2s ease;
}
.tool-chip.on { color: var(--select); border-color: rgba(255,176,64,.6); background: rgba(255,176,64,.08); }
.tool-chip .tool-detail { color: var(--text); font-family: var(--mono); overflow: hidden; text-overflow: ellipsis; }
.tool-chip .tool-detail::before { content: '· '; color: var(--faint); }
.done-btn {
  position: absolute; left: 50%; bottom: 18px; transform: translateX(-50%); z-index: 40;
  height: 56px; min-width: 150px; padding: 0 26px; border-radius: 28px; font-size: 18px; font-weight: 600;
  color: #06131a; background: var(--warm); border: 2px solid rgba(255,255,255,.35);
  box-shadow: 0 4px 18px rgba(0,0,0,.45);
}
.done-btn:hover:not(:disabled) { background: #ffe199; border-color: rgba(255,255,255,.6); color: #06131a; }
/* Polygon lens action bar (platform/polygon.js): Hide, Mark inferred, Undo, Done, all big enough
   for the hand cursor (>= 48 px tall). */
.poly-bar {
  position: absolute; left: 50%; top: 12px; transform: translateX(-50%); z-index: 40;
  display: flex; gap: 8px; padding: 6px; border-radius: 12px;
  background: rgba(8,14,20,.82); border: 1px solid var(--line-2);
}
.poly-bar button { height: 48px; min-width: 64px; padding: 0 14px; font-size: 14px; }
.poly-bar button.poly-done { color: #06131a; background: var(--warm); border-color: var(--warm); font-weight: 600; }
.poly-bar button.poly-done:hover:not(:disabled) { background: #ffe199; color: #06131a; }
@media (max-width: 640px) {
  .tool-chip { padding: 0 6px; max-width: 120px; }
  .tool-chip .tool-name { display: none; }
  .tool-chip.on .tool-name { display: none; }
  .poly-bar { gap: 4px; padding: 4px; }
  .poly-bar button { min-width: 48px; padding: 0 8px; font-size: 13px; }
  .poly-bar .pb-word { display: none; }
}