@font-face {
  font-family: GeoSans;
  src: url('../assets/fonts/DejaVuSans.ttf') format('truetype');
  font-display: swap;
  font-weight: 400;
}
@font-face {
  font-family: GeoSans;
  src: url('../assets/fonts/DejaVuSans-Bold.ttf') format('truetype');
  font-display: swap;
  font-weight: 700;
}

:root {
  color-scheme: dark;
  font-family: GeoSans, Arial, sans-serif;
  color: #eef4f5;
  background: #0c141e;
  font-synthesis: none;
}
* { box-sizing: border-box; }
body { margin: 0; }
main { width: min(840px, calc(100% - 40px)); margin: auto; }
header { text-align: center; padding: 48px 0 24px; }
.eyebrow { font-size: 10px; font-weight: 700; letter-spacing: 2px; color: #6dd7c9; margin: 0 0 12px; }
h1 { font-size: clamp(28px, 5vw, 42px); letter-spacing: -1.5px; margin: 0 0 15px; font-weight: 400; }
.lead { font-size: 15px; line-height: 1.75; color: #8a9da9; }

/* Viewer shell: same palette and anatomy as the point-cloud viewer. */
.toolbar {
  background: #111d28;
  border: 1px solid #273644;
  border-bottom: 1px solid #26323f;
  border-radius: 12px 12px 0 0;
}
.viewer-topline {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 17px 21px;
}
.viewer-topline > div { display: flex; align-items: center; gap: 12px; min-width: 0; }
.viewer-topline strong { font-size: 12px; font-weight: 400; }
.live-dot {
  display: inline-block;
  height: 7px;
  width: 7px;
  border-radius: 50%;
  background: #58bfb0;
  box-shadow: 0 0 0 4px #58bfb014;
  flex-shrink: 0;
}
.level-tag { font-size: 8px; color: #90a6af; padding: 3px 6px; background: #20313d; border-radius: 4px; white-space: nowrap; }
.viewer-count { font: 10px monospace; color: #7bacae; white-space: nowrap; }
.picker-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  padding: 0 20px 16px;
}
label { display: flex; flex-direction: row; align-items: center; gap: 12px; font-size: 10px; font-weight: 400; color: #8096a2; }
select, button { font: inherit; border-radius: 6px; }
select {
  font-size: 11px;
  min-width: 260px;
  min-height: 34px;
  padding: 9px 34px 9px 10px;
  color: #cce0e2;
  background: #1a2b38;
  border: 1px solid #2b4351;
}
button {
  font-size: 11px;
  padding: 9px 12px;
  color: #b4c7d0;
  background: none;
  border: 1px solid #2b4351;
  cursor: pointer;
}
button:hover:not(:disabled) { background: #243d45; color: #abf3df; border-color: #609c93; }
button:disabled, select:disabled { opacity: .55; }
button:focus-visible, select:focus-visible, input:focus-visible { outline: 3px solid #47bcb1; outline-offset: 3px; }
.note, .context-note { font-size: 11px; color: #8a9da9; line-height: 1.7; }
.context-note { margin: 0; max-width: 260px; text-align: right; font-size: 10px; color: #7bacae; }

section {
  padding: 0;
  background: #0c141e;
  border: 1px solid #273644;
  border-top: 0;
  border-radius: 0 0 12px 12px;
  overflow: hidden;
}
.note { padding: 14px 20px 0; margin: 0; }
.pair {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 0;
  margin-top: 12px;
  border-top: 1px solid #26323f;
  border-bottom: 1px solid #26323f;
}
figure { margin: 0; background: #0c141e; }
figure + figure { border-left: 1px solid #26323f; }
figcaption {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  font-size: 12px;
  color: #eef4f5;
  background: #111d28;
  border-bottom: 1px solid #26323f;
}
figcaption span { font: 10px monospace; color: #7bacae; }
.ours { color: #8de4d1; }
.viewport {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: auto;
  aspect-ratio: 1;
  max-height: 352px;
  background: #0c141e;
  background-image: radial-gradient(ellipse at 50% 60%, #192a38, #0c141e 75%);
}
.viewport canvas, .viewport img {
  display: block;
  width: 320px;
  height: auto;
  aspect-ratio: 1;
  max-width: 100%;
  max-height: 320px;
  object-fit: contain;
  touch-action: none;
}
.viewport img { position: absolute; }
.viewport canvas { opacity: 0; position: relative; }
.viewport.ready canvas { opacity: 1; }
.viewport.ready img { visibility: hidden; }
.playback {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin: 0;
  padding: 14px 20px;
  background: #111d28;
  border-bottom: 1px solid #26323f;
}
.playback input { flex: 1; min-width: 100px; accent-color: #6bd1bf; }
#frame-label { font: 10px monospace; min-width: 58px; color: #7bacae; }
#status { font-size: 11px; color: #6dd7c9; min-height: 20px; margin: 0; padding: 12px 20px 0; }
#status.error { color: #ff9b9b; }
.inputs {
  display: flex;
  align-items: center;
  gap: 15px;
  border-top: 1px solid #26323f;
  margin-top: 12px;
  padding: 14px 20px 16px;
}
.inputs > span { font-size: 10px; color: #8a9da9; }
#input-images { display: flex; flex-wrap: wrap; gap: 8px; }
#input-images img { width: 50px; height: 50px; border-radius: 5px; border: 1px solid #294350; object-fit: cover; }
footer { font-size: 10px; line-height: 1.7; color: #687f8a; padding: 16px 0 24px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
html.embedded, html.embedded body { background: transparent; }
.embedded main { width: 100%; }
.embedded header, .embedded .picker-row, .embedded .note, .embedded .inputs, .embedded footer { display: none; }
.embedded .pair { margin-top: 0; }
.embedded .toolbar { border-bottom: 0; }
.embedded #status { padding-bottom: 14px; }
@media (max-width: 620px) {
  main { width: calc(100% - 26px); }
  header { padding-top: 28px; }
  .viewer-topline { padding: 13px 12px; gap: 8px; align-items: flex-start; }
  .viewer-topline > div { gap: 7px; flex-wrap: wrap; }
  .viewer-topline strong { font-size: 10px; }
  .viewer-count { font-size: 8px; max-width: 110px; text-align: right; line-height: 1.5; white-space: normal; }
  .picker-row { flex-direction: column; align-items: stretch; gap: 12px; padding: 0 14px 14px; }
  label { justify-content: space-between; }
  select { width: 100%; min-width: 0; }
  .context-note { max-width: none; text-align: left; font-size: 10px; }
  .note { padding: 12px 14px 0; }
  .viewport canvas, .viewport img { height: auto; }
  figcaption { padding: 10px 12px; font-size: 10px; flex-direction: column; align-items: flex-start; gap: 4px; }
  .playback { gap: 8px; padding: 12px 14px; }
  button { font-size: 10px; padding: 8px; }
  #status { padding: 10px 14px 0; }
  .inputs { flex-wrap: wrap; gap: 10px; padding: 12px 14px 14px; }
  #input-images { gap: 6px; }
  #input-images img { width: 42px; height: 42px; }
  footer { font-size: 9px; }
}