:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #07090c;
  color: #edf2f6;
  font-synthesis: none;
  --bg: #07090c;
  --panel: rgba(15, 19, 24, 0.93);
  --panel-strong: #11161c;
  --panel-soft: rgba(8, 12, 16, 0.72);
  --line: rgba(125, 151, 171, 0.24);
  --line-strong: rgba(139, 172, 196, 0.46);
  --muted: #99a5ae;
  --text: #edf2f6;
  --accent: #e4edf5;
  --physical: #e6c968;
  --beam: #fff0a6;
  --ok: #92dfb5;
  --danger: #ff9587;
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.38);
}

* { box-sizing: border-box; }
html, body { width: 100%; height: 100%; margin: 0; overflow: hidden; background: var(--bg); }
body { overscroll-behavior: none; }
html[data-presentation="true"] body { display: grid; place-items: center; background: #000; }
html[data-presentation="true"] .app {
  width: min(100vw, calc(100vh * 16 / 9));
  height: min(100vh, calc(100vw * 9 / 16));
  width: min(100vw, calc(100dvh * 16 / 9));
  height: min(100dvh, calc(100vw * 9 / 16));
  grid-template-columns: minmax(0, 1fr);
}
html[data-presentation="true"] .stage { height: 100%; }
html[data-presentation="true"] .panel,
html[data-presentation="true"] .topbar,
html[data-presentation="true"] .transport,
html[data-presentation="true"] .camera-help,
html[data-presentation="true"] .reference { display: none !important; }
html[data-presentation="true"]:not([data-export="true"]) body {
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}
html[data-presentation="true"]:not([data-export="true"]) .app {
  width: min(calc(100vw - env(safe-area-inset-left) - env(safe-area-inset-right)), calc((100dvh - env(safe-area-inset-top) - env(safe-area-inset-bottom)) * 16 / 9));
  height: min(calc(100dvh - env(safe-area-inset-top) - env(safe-area-inset-bottom)), calc((100vw - env(safe-area-inset-left) - env(safe-area-inset-right)) * 9 / 16));
}
html[data-presentation="true"]:not([data-export="true"]) .presentation-controls {
  position: fixed;
  display: grid;
}
button, input, select { font: inherit; }
button, select, .file-button {
  border: 1px solid #33414f;
  border-radius: 8px;
  background: rgba(15, 22, 29, 0.92);
  color: #dce5ec;
}
button { cursor: pointer; padding: .52rem .7rem; transition: background .15s, border-color .15s, transform .15s; }
button:hover, .file-button:hover { border-color: #7b90a2; }
button:focus-visible,
select:focus-visible,
input:focus-visible,
summary:focus-visible,
.file-button:focus-within {
  border-color: #eef7ff;
  outline: 2px solid #eef7ff;
  outline-offset: 2px;
}
button:active { transform: translateY(1px); }
button.active { background: #e3ebf2; color: #15202a; border-color: #f6fafc; }
input[type="range"] { width: 100%; accent-color: #dfeaf2; }
input[type="checkbox"] { accent-color: #e6c968; }
select { width: 100%; padding: .45rem .5rem; }

.app {
  width: 100%;
  height: 100%;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 400px;
  background: #07090c;
}
.app.panel-closed { grid-template-columns: minmax(0, 1fr); }
.stage {
  min-width: 0;
  min-height: 0;
  position: relative;
  overflow: hidden;
  background: linear-gradient(#aeb6ba 0%, #d5d9da 47%, #b5b7b2 100%);
}
.loading-status {
  position: absolute;
  z-index: 25;
  top: 50%;
  left: 50%;
  display: grid;
  gap: .35rem;
  width: min(330px, calc(100% - 32px));
  transform: translate(-50%, -50%);
  border: 1px solid rgba(110, 132, 149, .72);
  border-radius: 10px;
  padding: .85rem 1rem;
  background: rgba(9, 14, 19, .94);
  box-shadow: var(--shadow);
  color: #e7edf2;
  text-align: center;
  pointer-events: none;
}
.loading-status strong { font-size: .82rem; font-weight: 760; text-transform: lowercase; }
.loading-status span { color: #aebbc5; font-size: .7rem; }
.app:not(.is-loading) .loading-status { display: none; }
.app.is-loading .topbar,
.app.is-loading .transport { opacity: .48; pointer-events: none; }
#scene, #sensor-overlay {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
}
#scene { touch-action: none; }
#scene:focus-visible { outline: 2px solid rgba(238, 247, 255, .92); outline-offset: -4px; }
#sensor-overlay { pointer-events: none; z-index: 2; }

.topbar {
  position: absolute;
  z-index: 10;
  top: 10px;
  left: 10px;
  right: 10px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: start;
  gap: 10px;
  pointer-events: none;
}
.identity, .view-tabs, .status-stack > * {
  pointer-events: auto;
  border: 1px solid rgba(90, 109, 126, .78);
  background: rgba(12, 17, 23, .92);
  box-shadow: 0 10px 30px rgba(0,0,0,.26);
  backdrop-filter: blur(14px);
}
.identity {
  display: grid;
  gap: 2px;
  min-width: 310px;
  padding: .62rem .78rem;
  border-radius: 9px;
}
.identity strong { font-size: .92rem; letter-spacing: .005em; }
.eyebrow { color: #b9c7d2; font: 750 .59rem/1.25 ui-monospace, SFMono-Regular, Consolas, monospace; letter-spacing: .13em; }
.version { color: #75838f; font: 650 .54rem ui-monospace, SFMono-Regular, Consolas, monospace; }
.view-tabs {
  justify-self: start;
  display: flex;
  gap: 4px;
  min-width: 0;
  padding: 4px;
  border-radius: 9px;
}
.view-tabs button { min-width: 88px; padding: .50rem .65rem; font-size: .73rem; white-space: nowrap; }
.status-stack { display: flex; gap: 7px; justify-self: end; }
.status, .panel-toggle {
  min-height: 39px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 9px;
  padding: .5rem .65rem;
  font: 750 .61rem ui-monospace, SFMono-Regular, Consolas, monospace;
  letter-spacing: .04em;
  color: #a8b5bf;
}
.status[data-state="window"] { color: #bbdff4; border-color: #4f7894; }
.status[data-state="strike"] { color: var(--beam); border-color: #8c783e; box-shadow: 0 0 22px rgba(255, 240, 166, .12); }
.panel-toggle { font-family: inherit; font-size: .7rem; letter-spacing: 0; }

.camera-help {
  position: absolute;
  z-index: 5;
  top: 76px;
  left: 12px;
  max-width: 420px;
  padding: .48rem .62rem;
  border-radius: 7px;
  background: rgba(11, 16, 21, .78);
  color: #c0cbd3;
  font-size: .72rem;
  backdrop-filter: blur(10px);
  pointer-events: none;
}
.camera-help[hidden] { display: none; }

.reference {
  position: absolute;
  z-index: 8;
  left: 12px;
  bottom: 69px;
  width: min(31%, 390px);
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid #465563;
  border-radius: 9px;
  background: #020405;
  box-shadow: 0 14px 34px rgba(0,0,0,.45);
}
.reference video { width: 100%; height: 100%; object-fit: contain; display: block; background: #020405; }
.reference-head {
  position: absolute;
  z-index: 2;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  gap: .45rem;
  padding: .38rem .48rem;
  background: linear-gradient(rgba(3,6,9,.88), transparent);
  color: #c8d3dc;
  font: 650 .61rem ui-monospace, SFMono-Regular, Consolas, monospace;
}
.reference-head strong { color: #fff; }
.reference-head span { flex: 1; }
.reference-head button { border: 0; background: transparent; color: #c8d3dc; padding: 0 .2rem; font-size: 1rem; }

.transport {
  position: absolute;
  z-index: 10;
  left: 10px;
  right: 10px;
  bottom: 10px;
  display: grid;
  grid-template-columns: auto auto auto auto minmax(120px, 1fr) auto 118px;
  gap: 8px;
  align-items: center;
  min-height: 49px;
  padding: 7px 9px;
  border: 1px solid rgba(77, 94, 109, .8);
  border-radius: 10px;
  background: rgba(10, 15, 20, .92);
  box-shadow: 0 12px 35px rgba(0,0,0,.3);
  backdrop-filter: blur(14px);
}
.transport button { padding: .48rem .7rem; }
.transport .play { min-width: 62px; }
.timeline-wrap { position: relative; min-width: 0; }
.timeline-wrap input { position: relative; z-index: 2; display: block; }
.event-band {
  position: absolute;
  z-index: 1;
  left: 8.67%;
  top: 50%;
  width: 6.89%;
  height: 6px;
  transform: translateY(-50%);
  border-radius: 99px;
  background: rgba(255, 230, 134, .36);
  box-shadow: 0 0 13px rgba(255, 230, 134, .14);
  pointer-events: none;
}
.transport output { text-align: right; white-space: nowrap; color: #c2ccd4; font: 700 .69rem ui-monospace, SFMono-Regular, Consolas, monospace; }
.playback-rate { display: flex; align-items: center; gap: .38rem; color: #96a4af; font-size: .65rem; }
.playback-rate select { width: auto; min-width: 64px; padding: .38rem .42rem; }
.playback-rate.modified select { border-color: var(--physical); }

.presentation-controls {
  position: absolute;
  z-index: 12;
  left: max(14px, env(safe-area-inset-left));
  right: max(14px, env(safe-area-inset-right));
  bottom: max(14px, env(safe-area-inset-bottom));
  display: none;
  grid-template-columns: auto auto minmax(160px, 1fr);
  align-items: end;
  gap: 8px;
  padding: 9px;
  border: 1px solid rgba(142, 160, 174, .56);
  border-radius: 11px;
  background: rgba(7, 11, 15, .88);
  box-shadow: 0 16px 44px rgba(0, 0, 0, .48);
  backdrop-filter: blur(14px);
}
.presentation-controls button { min-height: 40px; min-width: 58px; }
.presentation-progress { display: grid; gap: 6px; min-width: 0; }
.presentation-meta { display: flex; justify-content: space-between; gap: 1rem; align-items: baseline; }
.presentation-meta strong,
.presentation-meta output {
  font: 700 .64rem ui-monospace, SFMono-Regular, Consolas, monospace;
  letter-spacing: .04em;
}
.presentation-meta strong { color: #f1f5f8; }
.presentation-meta output { color: #b3c0ca; white-space: nowrap; }
.presentation-progress input { width: 100%; accent-color: var(--physical); }

.panel {
  min-height: 0;
  overflow-y: auto;
  border-left: 1px solid #2d3741;
  background: #151a20;
  scrollbar-color: #606a74 #1b2128;
  box-shadow: -14px 0 40px rgba(0,0,0,.28);
  transition: transform .2s ease, width .2s ease;
}
.panel.closed { display: none; }
.panel-head {
  position: sticky;
  z-index: 4;
  top: 0;
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 1rem;
  padding: 14px 13px 11px;
  border-bottom: 1px solid #2a333c;
  background: rgba(21, 26, 32, .97);
  backdrop-filter: blur(14px);
}
.panel-head h1 { margin: .15rem 0 0; font-size: 1rem; font-weight: 750; text-transform: lowercase; }
.panel-head button { border: 0; background: transparent; color: #aab6bf; padding: 0 .2rem; font-size: 1.2rem; }
.panel-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 7px;
  padding: 10px 12px;
  border-bottom: 1px solid #28323b;
}
.panel-actions.history-actions { grid-template-columns: 1fr 1fr 1.2fr; padding-bottom: 7px; }
.panel-actions.file-actions { padding-top: 0; }
.panel-actions button, .file-button { display: grid; place-items: center; min-height: 36px; padding: .44rem .55rem; font-size: .68rem; cursor: pointer; }
.panel-actions button:disabled { cursor: not-allowed; opacity: .42; }
.file-button { position: relative; }
.file-button input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}
.settings-tools {
  position: sticky;
  z-index: 3;
  top: 58px;
  display: grid;
  gap: 8px;
  padding: 11px 12px;
  border-bottom: 1px solid #2b3540;
  background: rgba(21, 26, 32, .97);
  backdrop-filter: blur(14px);
}
.settings-search { display: grid; gap: 5px; color: #b9c5ce; font-size: .71rem; }
.settings-search input {
  width: 100%;
  min-height: 38px;
  border: 1px solid #3a4753;
  border-radius: 8px;
  padding: .48rem .58rem;
  background: #0d1318;
  color: var(--text);
}
.modified-filter { display: flex; align-items: center; gap: .45rem; color: #aebac4; font-size: .69rem; }
.settings-summary { margin: 0; color: var(--physical); font: 700 .66rem ui-monospace, SFMono-Regular, Consolas, monospace; }
.calibration-boundary { margin: 0; color: #87949e; font-size: .64rem; line-height: 1.45; }
.calibration-boundary strong { color: #c7d0d7; font-weight: 680; }
.settings-empty { margin: 12px; color: #9eabb4; font-size: .72rem; }
.panel details { padding: 0 12px 10px; border-bottom: 1px solid #29323a; }
.panel details[hidden], .field[hidden], .check[hidden], .surface-grid[hidden] { display: none; }
.panel summary { cursor: pointer; padding: 12px 0 9px; color: #e5ebf0; font-size: .81rem; font-weight: 760; }
.panel summary::after { content: 'open'; float: right; color: #778691; font: 600 .58rem ui-monospace, monospace; text-transform: uppercase; }
.panel details[open] summary::after { content: 'close'; }
.field { display: grid; gap: 6px; margin: .72rem 0; padding-left: 8px; border-left: 2px solid transparent; color: #bbc6cf; font-size: .76rem; }
.field > span { display: flex; justify-content: space-between; gap: 1rem; align-items: baseline; }
.field output { margin-left: auto; color: #aeb9c3; font: 650 .67rem ui-monospace, SFMono-Regular, Consolas, monospace; white-space: nowrap; }
.field.important > span { color: var(--physical); }
.field.important input { accent-color: var(--physical); }
.field.modified, .check.modified, .surface-grid.modified { border-color: var(--physical); background: rgba(230, 201, 104, .045); }
.provenance-chip {
  order: 2;
  border: 1px solid #384550;
  border-radius: 99px;
  padding: .08rem .3rem;
  color: #85939e;
  font: 650 .52rem ui-monospace, monospace;
  letter-spacing: .035em;
  text-transform: uppercase;
  white-space: nowrap;
}
.field[data-provenance="fitted"] .provenance-chip { color: var(--physical); border-color: rgba(230, 201, 104, .45); }
.control-inputs { display: grid; grid-template-columns: minmax(0, 1fr) 90px; gap: 8px; align-items: center; }
.exact-value {
  width: 100%;
  min-height: 32px;
  border: 1px solid #36434f;
  border-radius: 7px;
  padding: .32rem .42rem;
  background: #0d1318;
  color: #dbe3e9;
  font: 650 .66rem ui-monospace, SFMono-Regular, Consolas, monospace;
}
.check { display: flex; align-items: center; gap: .45rem; margin: .56rem 0; padding: .25rem 8px; border-left: 2px solid transparent; color: #c1ccd4; font-size: .74rem; }
.surface-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .36rem .5rem; margin-top: .6rem; }
.surface-grid { padding: 5px 8px; border-left: 2px solid transparent; }
.surface-grid label { display: flex; align-items: center; gap: .38rem; color: #bdc7cf; font-size: .72rem; }
.diagnostics { display: grid; gap: 1px; border: 1px solid #29343e; border-radius: 8px; overflow: hidden; background: #29343e; }
.diag-row { display: flex; justify-content: space-between; gap: 1rem; padding: .47rem .55rem; background: #11171d; font-size: .65rem; }
.diag-row span { color: #8f9ca7; }
.diag-row strong { color: #d7dfe5; text-align: right; font: 650 .61rem ui-monospace, SFMono-Regular, Consolas, monospace; }
.diag-row strong.strike { color: var(--beam); }
.diag-note { margin: .55rem 0 0; color: #7f8b95; font-size: .61rem; line-height: 1.45; }

.view-label {
  position: absolute;
  z-index: 4;
  padding: .37rem .5rem;
  border: 1px solid rgba(101, 120, 136, .55);
  border-radius: 6px;
  background: rgba(7, 11, 15, .72);
  color: #e5ebef;
  font: 700 .59rem ui-monospace, SFMono-Regular, Consolas, monospace;
  pointer-events: none;
}

.toast {
  position: absolute;
  z-index: 20;
  left: 50%;
  bottom: 75px;
  transform: translateX(-50%);
  max-width: min(520px, calc(100% - 30px));
  border: 1px solid #52616d;
  border-radius: 8px;
  padding: .55rem .72rem;
  background: rgba(10,15,20,.94);
  color: #dce5eb;
  font-size: .7rem;
  box-shadow: 0 12px 35px rgba(0,0,0,.35);
}

@media (max-width: 1400px) {
  .app { grid-template-columns: minmax(0, 1fr); }
  .panel {
    position: fixed;
    z-index: 30;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(400px, 100vw);
    border-left: 1px solid #2d3741;
    box-shadow: -18px 0 50px rgba(0, 0, 0, .5);
  }
  .identity { min-width: 0; }
  .identity .version { display: none; }
  .view-tabs { overflow-x: auto; }
  .view-tabs button { min-width: 76px; }
}

@media (max-width: 900px) {
  .topbar { grid-template-columns: minmax(0, 1fr) auto; }
  .identity { display: none; }
  .view-tabs { grid-column: 1; }
  .status-stack { grid-column: 2; }
}

@media (max-width: 800px) {
  html, body { overflow: hidden; }
  .app { height: 100%; display: grid; grid-template-columns: minmax(0, 1fr); }
  .stage { height: 100dvh; min-height: 0; }
  .panel { width: min(420px, 100vw); padding-bottom: env(safe-area-inset-bottom); }
  .panel-head {
    height: calc(71px + env(safe-area-inset-top));
    padding-top: max(14px, env(safe-area-inset-top));
  }
  .panel-head button { width: 44px; height: 44px; margin: -.5rem -.35rem 0 0; }
  .panel summary { min-height: 44px; display: block; }
  .settings-tools { top: calc(71px + env(safe-area-inset-top)); }
  .topbar {
    top: max(10px, env(safe-area-inset-top));
    left: max(10px, env(safe-area-inset-left));
    right: max(10px, env(safe-area-inset-right));
    gap: 4px;
  }
  .view-tabs { grid-column: 1; display: grid; grid-template-columns: repeat(5, minmax(44px, 1fr)); width: 100%; max-width: none; gap: 3px; padding: 3px; overflow: visible; }
  .view-tabs button { min-width: 44px; min-height: 44px; overflow: hidden; padding: 0 .15rem; font-size: 0; }
  .view-tabs button::after { content: attr(data-short-label); font-size: .66rem; text-transform: uppercase; }
  .panel-toggle { width: 52px; min-width: 52px; min-height: 44px; padding-inline: .2rem; font-size: .58rem; }
  .status { position: absolute; top: 50px; left: 0; min-height: 27px; padding: .3rem .5rem; background: rgba(12, 17, 23, .86); }
  .camera-help { top: 66px; }
  .reference { width: 42%; bottom: 108px; }
  .transport {
    grid-template-columns: auto auto auto auto minmax(58px, auto);
    min-height: 88px;
  }
  #play { grid-column: 1; grid-row: 1; }
  #jump-onset { grid-column: 2; grid-row: 1; }
  #jump-peak { grid-column: 3; grid-row: 1; }
  #presentation-launch { grid-column: 4; grid-row: 1; }
  .playback-rate { grid-column: 5; grid-row: 1; justify-self: end; }
  .playback-rate > :first-child:not(select) { display: none; }
  .timeline-wrap { grid-column: 1 / 5; grid-row: 2; }
  .transport output { display: block; grid-column: 5; grid-row: 2; font-size: .6rem; }
  .transport button { min-height: 44px; }
}

@media (max-width: 560px) {
  .stage { height: 100dvh; min-height: 0; }
  .camera-help { display: none; }
  .transport {
    left: max(6px, env(safe-area-inset-left));
    right: max(6px, env(safe-area-inset-right));
    bottom: max(6px, env(safe-area-inset-bottom));
    height: 110px;
    min-height: 110px;
    gap: 5px;
    padding: 6px;
  }
  .transport button { min-width: 44px; min-height: 44px; padding-inline: .38rem; font-size: .66rem; }
  #presentation-launch { font-size: 0; }
  #presentation-launch::after { content: attr(data-short-label); font-size: .66rem; }
  .playback-rate { gap: 0; }
  .playback-rate select { min-width: 55px; min-height: 44px; padding-inline: .28rem; font-size: .64rem; }
  .timeline-wrap input { min-height: 44px; }
  .reference {
    left: max(7px, env(safe-area-inset-left));
    width: 48%;
    bottom: calc(124px + env(safe-area-inset-bottom));
  }
  .reference-head {
    height: 28px;
    min-height: 0;
    padding: 0 44px 0 .4rem;
    background: linear-gradient(to bottom, rgba(3,6,9,.86), rgba(3,6,9,.24) 72%, transparent);
    pointer-events: none;
  }
  .reference-head span { display: none; }
  .reference-head button {
    position: absolute;
    top: 0;
    right: 0;
    width: 44px;
    min-width: 44px;
    height: 44px;
    min-height: 44px;
    padding: 0;
    pointer-events: auto;
  }
  .panel-actions, .surface-grid { grid-template-columns: 1fr 1fr; }
  .panel-actions.history-actions { grid-template-columns: 1fr 1fr 1.2fr; }
  .panel-actions button, .file-button, .settings-search input, .exact-value, .field select, .modified-filter { min-height: 44px; }
  .field { font-size: .8rem; }
  .control-inputs { grid-template-columns: minmax(0, 1fr) 96px; }
  .control-inputs input[type="range"] { min-height: 44px; }
  .exact-value { font-size: .72rem; }
  .check, .surface-grid label { min-height: 44px; font-size: .78rem; }
  .check input, .surface-grid input, .modified-filter input { width: 20px; height: 20px; flex: 0 0 auto; }
  .presentation-controls {
    left: max(7px, env(safe-area-inset-left));
    right: max(7px, env(safe-area-inset-right));
    bottom: max(7px, env(safe-area-inset-bottom));
    grid-template-columns: auto auto minmax(100px, 1fr);
    gap: 5px;
    padding: 6px;
  }
  .presentation-controls button { min-width: 46px; min-height: 44px; padding-inline: .5rem; }
  .presentation-progress input { min-height: 44px; }
  .presentation-meta strong { max-width: 110px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
}

@media (max-height: 560px) {
  html[data-presentation="true"]:not([data-export="true"]) .presentation-controls button,
  html[data-presentation="true"]:not([data-export="true"]) .presentation-progress input { min-height: 44px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
}