/* MV-SAM3D agreement point-cloud viewer — same visual system as the world pages */

:root {
  --black: #07090c;
  --ink: #0d1218;
  --panel: #151c24;
  --bone: #ede7da;
  --muted: #8b95a0;
  --amber: #e39b2d;
  --ice: #86d7ea;
  --wire: rgba(237, 231, 218, 0.16);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body { height: 100%; }

body {
  background: var(--black);
  color: var(--bone);
  font-family: "Archivo", system-ui, sans-serif;
  overflow: hidden;
}

.hud-mono {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  letter-spacing: 0.12em;
}

.viewer-shell { height: 100vh; display: flex; flex-direction: column; }

/* header */
.viewer-header {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  padding: 0.8rem 1.4rem;
  border-bottom: 1px solid rgba(237, 231, 218, 0.08);
}

.brand {
  color: var(--amber);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
}

.viewer-title { font-size: 0.7rem; color: var(--muted); flex: 1; }

.viewer-nav { display: flex; gap: 1rem; }

.viewer-nav a {
  color: var(--bone);
  text-decoration: none;
  font-size: 0.7rem;
  border: 1px solid var(--wire);
  padding: 0.4rem 0.7rem;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.viewer-nav a:hover { border-color: var(--ice); color: var(--ice); }

/* layout */
.viewer-main { flex: 1; display: flex; min-height: 0; }

.canvas-wrap { position: relative; flex: 1; min-width: 0; }

#gl { width: 100%; height: 100%; display: block; }

.hud-corner {
  position: absolute;
  width: 2rem;
  height: 2rem;
  border: 1px solid rgba(237, 231, 218, 0.3);
  pointer-events: none;
}

.hud-corner.tl { top: 1.2rem; left: 1.2rem; border-right: 0; border-bottom: 0; }
.hud-corner.br { bottom: 1.2rem; right: 1.2rem; border-left: 0; border-top: 0; }

.readout {
  position: absolute;
  top: 1.4rem;
  left: 2.6rem;
  display: flex;
  gap: 1.6rem;
  font-size: 0.68rem;
  color: var(--muted);
  pointer-events: none;
}

.readout b { color: var(--ice); font-weight: 600; }

.hint {
  position: absolute;
  bottom: 1.4rem;
  left: 2.6rem;
  font-size: 0.6rem;
  color: rgba(139, 149, 160, 0.7);
  pointer-events: none;
}

/* side panel */
.panel {
  width: min(340px, 34vw);
  border-left: 1px solid rgba(237, 231, 218, 0.08);
  background: var(--ink);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.panel-block {
  padding: 1.3rem 1.4rem;
  border-bottom: 1px solid rgba(237, 231, 218, 0.07);
}

.panel h1 {
  font-family: "Archivo Black", "Archivo", sans-serif;
  font-weight: 400;
  font-size: 1.55rem;
  line-height: 1.05;
  margin-bottom: 0.7rem;
}

.panel-lede { font-size: 0.85rem; line-height: 1.55; color: rgba(237, 231, 218, 0.78); }

.panel-lede sub { font-size: 0.65em; }
.panel-lede sup { font-size: 0.72em; }

.row-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.65rem;
  color: var(--muted);
  margin-bottom: 0.6rem;
}

.row-label b { color: var(--ice); }

.step-row { display: flex; gap: 0.7rem; align-items: center; }

.ctl-btn {
  background: transparent;
  border: 1px solid var(--wire);
  color: var(--bone);
  min-width: 2.2rem;
  height: 1.9rem;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.ctl-btn:hover { border-color: var(--ice); color: var(--ice); }

input[type="range"] {
  --p: 0%;
  flex: 1;
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
  height: 4px;
  background: linear-gradient(90deg, var(--ice) var(--p), rgba(237, 231, 218, 0.14) var(--p));
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--bone);
  border: 2px solid var(--ice);
}

input[type="range"]::-moz-range-thumb {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--bone);
  border: 2px solid var(--ice);
}

/* sparkline */
#spark {
  width: 100%;
  height: 56px;
  margin-top: 0.9rem;
  background: rgba(7, 9, 12, 0.6);
  border: 1px solid rgba(134, 215, 234, 0.18);
}

#sparkLine { stroke: var(--ice); stroke-width: 1.6; }

#sparkHead { stroke: var(--amber); stroke-width: 1.4; }

.spark-x {
  display: flex;
  justify-content: space-between;
  font-size: 0.55rem;
  color: rgba(139, 149, 160, 0.8);
  margin-top: 0.35rem;
}

/* segmented buttons */
.seg-row { display: flex; gap: 0.5rem; flex-wrap: wrap; }

.seg-btn {
  flex: 1;
  background: transparent;
  border: 1px solid var(--wire);
  color: var(--muted);
  font-size: 0.6rem;
  padding: 0.5rem 0.4rem;
  cursor: pointer;
  white-space: nowrap;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.seg-btn.active { border-color: var(--ice); color: var(--ice); }

.seg-btn:hover { color: var(--bone); }

/* legend */
.legend { margin-top: 0.9rem; }

.legend-bar {
  display: block;
  height: 10px;
  border: 1px solid rgba(237, 231, 218, 0.15);
  background: linear-gradient(90deg, #3b4cc0, #dddddd, #b40426);
}

.legend-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.55rem;
  color: var(--muted);
  margin-top: 0.35rem;
}

.panel-note p {
  font-size: 0.58rem;
  line-height: 1.7;
  color: rgba(139, 149, 160, 0.75);
}

button:focus-visible, input:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

@media (max-width: 820px) {
  .viewer-main { flex-direction: column; }
  .panel { width: 100%; border-left: 0; border-top: 1px solid rgba(237, 231, 218, 0.08); }
  .canvas-wrap { min-height: 52vh; }
}