/* Interactive polariscope — see polariscope-3d-spec.md. Site tokens only. */
.psim { margin: 1.75rem 0; padding: 1rem; background: var(--surface, #F8F6F3);
  border: 1px solid var(--border, rgba(0,0,0,.09)); border-radius: var(--radius, 12px); }
.psim[hidden] { display: none; }
.psim h3 { margin: 0 0 .35rem; }
.psim-intro { margin: 0 0 .9rem; color: var(--muted, #5A5F63); }
.psim-stage { position: relative; }
.psim-stage canvas { display: block; width: 100%; aspect-ratio: 4 / 3; max-height: 460px;
  border-radius: var(--radius-sm, 8px); background: #1b1c1f; touch-action: none; cursor: grab; }
.psim-stage canvas:active { cursor: grabbing; }
.psim-drag { position: absolute; right: .6rem; bottom: .5rem; font-size: var(--text-xs, .75rem);
  color: rgba(255,255,255,.55); pointer-events: none; }
.psim-ui { margin-top: .75rem; display: grid; gap: .6rem; }
.psim-row { display: flex; flex-wrap: wrap; align-items: center; gap: .4rem .5rem; }
.psim-label { flex: 0 0 100%; font-size: var(--text-xs, .75rem); font-weight: 600;
  letter-spacing: .06em; text-transform: uppercase; color: var(--muted, #5A5F63); }
.psim button { font: inherit; font-size: var(--text-sm, .8125rem); padding: .45rem .75rem; min-height: 40px;
  border-radius: var(--radius-sm, 8px); border: 1px solid var(--border, rgba(0,0,0,.09));
  background: var(--bg, #F2F0ED); color: var(--text, #1C1F21); cursor: pointer; }
.psim button:hover { border-color: var(--brand-40, rgba(0,106,120,.4)); }
.psim button[aria-pressed="true"] { background: var(--brand, #006A78); border-color: var(--brand, #006A78); color: #fff; }
.psim button:disabled { opacity: .45; cursor: default; }
.psim button:focus-visible, .psim input:focus-visible { outline: 2px solid var(--brand, #006A78); outline-offset: 2px; }
.psim input[type="range"] { flex: 1 1 160px; accent-color: var(--brand, #006A78); min-height: 40px; }
.psim-deg { min-width: 3.2ch; font-variant-numeric: tabular-nums; }
.psim-tabs { display: flex; gap: .4rem; }
.psim-hint, .psim-task { margin: 0; color: var(--text, #1C1F21); }
.psim-check { margin: 0; padding-left: 1.2rem; font-size: var(--text-sm, .8125rem); color: var(--muted, #5A5F63); }
.psim-check li.done { color: var(--green, #1e7e4e); }
.psim-feedback p { margin: .4rem 0 0; }
.psim-feedback p.ok { color: var(--green, #1e7e4e); font-weight: 600; }
.psim-feedback p.no { color: var(--red, #c0392b); font-weight: 600; }
.psim-mystery { display: grid; gap: .6rem; }
.psim-mystery[hidden], .psim-row[hidden], .psim-hint[hidden] { display: none; }
.psim-new { justify-self: start; }
.psim-note { margin: .9rem 0 0; font-size: var(--text-xs, .75rem); color: var(--subtle, #696D70); }
.psim-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }