/* Layout: the lift fills a dark stage on the left; a narrow tabbed control rail (Bar path / Technique) sits on the right and stacks under it on phones. */
:root {
  --bg: #101214;
  --surface: #171a1d;
  --line: #2a2f34;
  --fg: #ebe8e1;
  --muted: #8f969c;
  --accent: #f2c230;
  --accent-text: #f2c230;
  --accent-ink: #1a1500;
  --warn: #ff7a6b;
  --watch: #f0a93b;
  --good: #57c785;
  --screen: #0a0b0c;
  --display: "Barlow Condensed", "Arial Narrow", "Helvetica Neue", sans-serif;
  --body: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  color-scheme: dark;
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #eceeed; --surface: #ffffff; --line: #d2d7d6; --fg: #15181a; --muted: #5b6267;
    --accent-text: #7d6000; --warn: #b8321f; --watch: #8f5600; --good: #1d7442; color-scheme: light;
  }
}
:root[data-theme="light"] {
  --bg: #eceeed; --surface: #ffffff; --line: #d2d7d6; --fg: #15181a; --muted: #5b6267;
  --accent-text: #7d6000; --warn: #b8321f; --watch: #8f5600; --good: #1d7442; color-scheme: light;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { background: var(--bg); color: var(--fg); font: 14px/1.5 var(--body); margin: 0; }
button, input, select { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.app { padding-inline: 20px; padding-block: 16px 32px; max-width: 1400px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }

.top { display: flex; align-items: baseline; gap: 8px 20px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; font: 700 28px/1 var(--display); letter-spacing: .04em; text-transform: uppercase; margin: 0; }
.brand .plate { width: 22px; height: 22px; border-radius: 50%; background: radial-gradient(circle, #c3c7ca 0 22%, #1c1c1c 23% 30%, var(--accent) 31% 86%, #1c1c1c 87%); flex: none; }
.top p { margin: 0; color: var(--muted); max-width: 62ch; }

.work { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 20px; align-items: start; }
@media (max-width: 900px) {
  .work { grid-template-columns: minmax(0, 1fr); }
  .app { padding-inline: 16px; gap: 12px; }
  /* Leave room below the video so the transport and the next step stay in view. */
  #view { max-height: 60vh; max-height: 60svh; }
  .stage-acts .btn { padding: 11px 16px; font-size: 15px; }
  #stageTrack:not([hidden]) { display: inline-flex; }
}

/* Stage */
.stage { min-width: 0; display: flex; flex-direction: column; gap: 10px; }
.screen { position: relative; background: var(--screen); border-radius: 6px; display: flex; justify-content: center; align-items: center; min-height: 240px; overflow: hidden; }
#view { display: block; max-width: 100%; max-height: 74vh; width: auto; height: auto; cursor: crosshair; touch-action: none; }
.screen.busy #view { cursor: progress; }
.chip { position: absolute; top: 10px; left: 10px; background: rgba(10,11,12,.78); color: #ebe8e1; font: 500 12px/1 var(--mono); padding: 7px 9px; border-radius: 4px; pointer-events: none; max-width: calc(100% - 20px); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.chip.warn { color: #ffb3a8; }
.drop { position: absolute; inset: 0; display: grid; place-items: center; background: rgba(10,11,12,.82); color: #f2c230; font: 700 26px var(--display); letter-spacing: .05em; text-transform: uppercase; border: 2px dashed #f2c230; border-radius: 6px; pointer-events: none; }

/* Load / Track / Stop on the video itself, so phones don't have to scroll to the rail mid-task. */
.stage-acts { position: absolute; right: 10px; bottom: 10px; display: flex; gap: 8px; }
.stage-acts .btn { box-shadow: 0 2px 10px rgba(0,0,0,.45); }
.stage-acts .btn.stop { background: #ff7a6b; border-color: #ff7a6b; color: #1a0603; font-weight: 600; min-width: 96px; padding: 12px 18px; font-size: 16px; }
#stageTrack { display: none; }

.transport { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.transport input[type=range] { flex: 1 1 200px; min-width: 0; accent-color: var(--accent); }
.counter { font: 13px var(--mono); font-variant-numeric: tabular-nums; color: var(--muted); white-space: nowrap; }
.hint { margin: 0; color: var(--muted); font-size: 13px; }
kbd { font: 12px var(--mono); border: 1px solid var(--line); border-radius: 3px; padding: 0 4px; }

.btn { background: var(--surface); border: 1px solid var(--line); border-radius: 5px; padding: 7px 12px; cursor: pointer; line-height: 1.2; }
.btn:hover:not(:disabled) { border-color: var(--muted); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn.icon { width: 36px; padding-inline: 0; text-align: center; font-family: var(--mono); }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); font-weight: 600; }
.btn.primary:hover:not(:disabled) { border-color: var(--fg); }
select.btn { padding-right: 8px; }

/* Rail */
.rail { display: flex; flex-direction: column; background: var(--surface); border: 1px solid var(--line); border-radius: 6px; min-width: 0; }
.tabs { display: flex; border-bottom: 1px solid var(--line); }
.tabs button { flex: 1; background: none; border: 0; border-bottom: 3px solid transparent; margin-bottom: -1px; padding: 12px 8px 10px; cursor: pointer; color: var(--muted); font: 700 17px/1.1 var(--display); letter-spacing: .06em; text-transform: uppercase; }
.tabs button[aria-selected=true] { color: var(--fg); border-bottom-color: var(--accent); }
.tabs .count { font: 500 12px var(--mono); color: var(--warn); margin-left: 6px; letter-spacing: 0; }
.rail section { padding: 16px; display: flex; flex-direction: column; gap: 10px; border-top: 1px solid var(--line); }
.rail section:first-child { border-top: 0; }
.rail h2 { margin: 0; display: flex; align-items: center; gap: 10px; font: 700 18px/1.1 var(--display); letter-spacing: .05em; text-transform: uppercase; }
.rail h2 .n { width: 22px; height: 22px; border-radius: 50%; border: 1.5px solid var(--accent); color: var(--accent-text); display: grid; place-items: center; font: 500 12px var(--mono); flex: none; }
.rail h3 { margin: 6px 0 0; font: 600 11px/1.2 var(--body); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.rail p { margin: 0; }
.note { color: var(--muted); font-size: 13px; }
.note.warn { color: var(--warn); }
.row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.row > label, .row > .lbl { flex: none; color: var(--muted); font-size: 13px; min-width: 84px; }
.row input[type=range] { flex: 1; min-width: 0; accent-color: var(--accent); }
.row output { font: 13px var(--mono); font-variant-numeric: tabular-nums; min-width: 52px; text-align: right; }
.check { display: flex; align-items: flex-start; gap: 8px; font-size: 13px; cursor: pointer; }
.check input { margin-top: 3px; accent-color: var(--accent); }
.file { position: relative; overflow: hidden; display: inline-flex; justify-content: center; }
.file input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.btns { display: flex; gap: 8px; flex-wrap: wrap; }
.btns .btn { flex: 1 1 auto; }

.progress { height: 4px; background: var(--line); border-radius: 2px; overflow: hidden; }
.progress div { height: 100%; width: 0; background: var(--accent); transition: width .1s linear; }

.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 5px; overflow: hidden; }
.seg button { background: none; border: 0; padding: 5px 11px; cursor: pointer; font-size: 13px; white-space: nowrap; }
.seg button + button { border-left: 1px solid var(--line); }
.seg button[aria-pressed=true] { background: var(--accent); color: var(--accent-ink); font-weight: 600; }

.stats { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 12px; margin: 0; }
.stats div { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.stats dt { font-size: 11px; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
.stats dd { margin: 0; font: 500 22px/1.15 var(--mono); font-variant-numeric: tabular-nums; }
.stats dd small { font-size: 12px; color: var(--muted); font-weight: 400; }
.stats .wide { grid-column: 1 / -1; }

.swatches { display: flex; gap: 8px; flex-wrap: wrap; }
.swatch { width: 28px; height: 28px; border-radius: 50%; border: 2px solid var(--line); cursor: pointer; padding: 0; }
.swatch[aria-pressed=true] { border-color: var(--fg); box-shadow: 0 0 0 2px var(--surface) inset; }

/* Findings */
.tally { display: flex; gap: 8px; flex-wrap: wrap; }
.pill { font: 600 11px/1 var(--body); letter-spacing: .06em; text-transform: uppercase; padding: 4px 6px; border-radius: 3px; border: 1px solid currentColor; white-space: nowrap; align-self: start; }
.pill.fault { color: var(--warn); }
.pill.watch { color: var(--watch); }
.pill.good { color: var(--good); }
.pill.info, .pill.na { color: var(--muted); }
.findings { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 2px; }
.finding { display: grid; grid-template-columns: 58px minmax(0, 1fr) auto; gap: 4px 10px; align-items: baseline; width: 100%; text-align: left; background: none; border: 1px solid transparent; border-radius: 5px; padding: 8px 6px; cursor: pointer; }
.finding:hover { border-color: var(--line); }
.finding[aria-current=true] { border-color: var(--accent); }
.finding .pill { justify-self: start; }
.finding .t { font-weight: 600; }
.finding .f { font: 12px var(--mono); color: var(--muted); white-space: nowrap; }
.finding .d { grid-column: 2 / -1; color: var(--muted); font-size: 13px; }

@media (prefers-reduced-motion: reduce) { .progress div { transition: none; } }

/* Library */
.tabs .count.muted { color: var(--muted); }
.input { background: var(--bg); border: 1px solid var(--line); border-radius: 5px; padding: 7px 9px; min-width: 0; }
textarea.input { resize: vertical; min-height: 56px; font: inherit; }
.btn.sm { padding: 4px 9px; font-size: 12px; }
.btn.danger { border-color: var(--warn); color: var(--warn); }
.btn[aria-pressed=true] { border-color: var(--accent); color: var(--accent-text); }
.meter { height: 4px; background: var(--line); border-radius: 2px; overflow: hidden; }
.meter div { height: 100%; width: 0; background: var(--accent); }
.ghost-note { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.lib-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.card { display: grid; grid-template-columns: 64px minmax(0, 1fr); gap: 8px 12px; padding: 10px; border: 1px solid var(--line); border-radius: 6px; }
.card.current { border-color: var(--accent); }
.card .thumb { width: 64px; height: 86px; object-fit: cover; border-radius: 4px; background: var(--screen); }
.card .meta { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.card .ttl { font-weight: 600; }
.card .sub { font-size: 12px; color: var(--muted); }
.card .notes { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.card .nums { font: 12px var(--mono); color: var(--muted); font-variant-numeric: tabular-nums; }
.card .tally { gap: 6px; }
.card .acts { grid-column: 1 / -1; display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.tagv { color: var(--accent-text); }
.pick { display: inline-flex; gap: 5px; align-items: center; font-size: 12px; margin-right: auto; cursor: pointer; }
.pick input { accent-color: var(--accent); margin: 0; }
.stills { display: flex; gap: 6px; overflow-x: auto; padding-bottom: 2px; }
.stills button { padding: 0; border: 1px solid var(--line); background: none; border-radius: 4px; overflow: hidden; cursor: pointer; flex: none; display: flex; flex-direction: column; }
.stills button:hover { border-color: var(--muted); }
.stills img { width: 64px; height: 86px; object-fit: cover; display: block; background: var(--screen); }
.stills span { font-size: 10px; color: var(--muted); padding: 2px 4px; text-align: left; }
.finding.static { cursor: default; }
.scroll-x { overflow-x: auto; }
.cmp { width: 100%; border-collapse: collapse; font-size: 12px; }
.cmp th, .cmp td { text-align: right; padding: 5px 6px; border-bottom: 1px solid var(--line); font-variant-numeric: tabular-nums; white-space: nowrap; }
.cmp th { font-weight: 600; color: var(--muted); font-size: 11px; letter-spacing: .04em; text-transform: uppercase; }
.cmp th:first-child, .cmp td:first-child { text-align: left; }
.cmp .sub { font-size: 11px; color: var(--muted); padding-left: 16px; }
.sw { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 6px; vertical-align: -1px; }

/* Video element kept in the document for iOS, but out of sight. */
.offstage { position: fixed; left: 0; top: 0; width: 2px; height: 2px; opacity: 0; pointer-events: none; z-index: -1; }

/* Install / offline */
.top-actions { margin-left: auto; display: flex; gap: 8px; align-items: center; }
.install-help { flex-basis: 100%; margin: 0; }