:root {
  --ptb-bg: #030405;
  --ptb-panel: #090d10;
  --ptb-panel-2: #0f1519;
  --ptb-text: #eef9f7;
  --ptb-muted: #91a5a7;
  --ptb-muted-2: #5f7376;
  --ptb-line: rgba(255,255,255,.13);
  --ptb-accent: #9df8ff;
  --ptb-gold: #d8b765;
  --ptb-danger: #ff7d7d;
  --ptb-success: #9dffcf;
  --ptb-purple: #d5a9ff;
  --ptb-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.ptb-viewport-shell {
  width: 100%;
  height: 100%;
  min-height: 420px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
  color: var(--ptb-text);
  background: var(--ptb-bg);
  border: 1px solid var(--ptb-line);
  border-radius: 18px;
}

.ptb-viewport-toolbar {
  position: relative;
  z-index: 20;
  min-height: 64px;
  padding: 9px 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid var(--ptb-line);
  background: rgba(9,13,16,.94);
  backdrop-filter: blur(14px);
}

.ptb-toolbar-group { display: flex; align-items: center; gap: 8px; }
.ptb-toolbar-variants { flex: 0 1 auto; min-width: 0; }
.ptb-toolbar-search { flex: 1 1 240px; min-width: 180px; }
.ptb-variant-controls { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.ptb-variant-control {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 38px;
  margin: 0;
  padding: 6px 8px;
  border: 1px solid var(--ptb-line);
  border-radius: 11px;
  color: var(--ptb-muted);
  background: rgba(255,255,255,.025);
  font-size: 11px;
}
.ptb-variant-control > span:first-child,
.ptb-opacity-control > span {
  color: var(--ptb-muted-2);
  font: 700 9px/1 var(--ptb-mono);
  letter-spacing: .1em;
  text-transform: uppercase;
}
.ptb-variant-control select {
  min-height: 26px;
  padding: 3px 7px;
  color: var(--ptb-text);
  background: #101820;
  border: 0;
  border-radius: 7px;
}
.ptb-variant-control input[type="checkbox"],
.ptb-variant-control input[type="range"],
.ptb-opacity-control input { accent-color: var(--ptb-accent); }
.ptb-range-control { display: inline-flex; gap: 7px; align-items: center; }
.ptb-range-control input { width: 92px; }
.ptb-range-control output { min-width: 24px; color: var(--ptb-accent); font: 700 10px var(--ptb-mono); }

.ptb-region-search { position: relative; width: 100%; max-width: 330px; }
.ptb-search-input-wrap { position: relative; display: block; margin: 0; }
.ptb-search-input-wrap input {
  width: 100%;
  min-height: 40px;
  padding: 8px 38px 8px 12px;
  color: var(--ptb-text);
  background: rgba(3,4,5,.9);
  border: 1px solid var(--ptb-line);
  border-radius: 11px;
  outline: 0;
}
.ptb-search-input-wrap input:focus { border-color: rgba(157,248,255,.55); box-shadow: 0 0 0 3px rgba(157,248,255,.08); }
.ptb-search-input-wrap kbd {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  padding: 3px 6px;
  color: var(--ptb-muted-2);
  background: rgba(255,255,255,.05);
  border: 1px solid var(--ptb-line);
  border-radius: 6px;
  font: 700 10px var(--ptb-mono);
}
.ptb-search-results {
  position: absolute;
  top: calc(100% + 7px);
  left: 0;
  right: 0;
  z-index: 50;
  max-height: 310px;
  overflow: auto;
  padding: 6px;
  border: 1px solid rgba(157,248,255,.2);
  border-radius: 13px;
  background: rgba(5,8,10,.98);
  box-shadow: 0 24px 70px rgba(0,0,0,.55);
}
.ptb-search-results button {
  width: 100%;
  padding: 10px;
  display: block;
  text-align: left;
  color: var(--ptb-text);
  background: transparent;
  border: 0;
  border-radius: 9px;
  cursor: pointer;
}
.ptb-search-results button:hover,
.ptb-search-results button:focus { background: rgba(157,248,255,.08); outline: 0; }
.ptb-search-results strong,
.ptb-search-results span { display: block; }
.ptb-search-results strong { font-size: 12px; }
.ptb-search-results span { margin-top: 4px; color: var(--ptb-muted-2); font: 9px var(--ptb-mono); word-break: break-all; }
.ptb-search-empty { padding: 14px; color: var(--ptb-muted); font-size: 12px; }

.ptb-camera-controls { flex: 0 0 auto; }
.ptb-camera-controls button,
.ptb-evidence-marker {
  border: 1px solid var(--ptb-line);
  color: var(--ptb-text);
  background: rgba(255,255,255,.04);
  cursor: pointer;
}
.ptb-camera-controls button {
  min-width: 36px;
  height: 36px;
  padding: 0 10px;
  border-radius: 9px;
  font-weight: 800;
}
.ptb-camera-controls button:hover { border-color: rgba(157,248,255,.35); background: rgba(157,248,255,.08); }
.ptb-camera-controls output { min-width: 48px; color: var(--ptb-accent); text-align: center; font: 700 10px var(--ptb-mono); }
.ptb-opacity-control { display: flex; align-items: center; gap: 7px; margin: 0; }
.ptb-opacity-control input { width: 78px; }
.ptb-opacity-control output { min-width: 32px; color: var(--ptb-muted); font: 700 9px var(--ptb-mono); }
.ptb-selection-count {
  flex: 0 0 auto;
  padding: 7px 9px;
  border: 1px solid rgba(157,248,255,.18);
  border-radius: 999px;
  color: var(--ptb-accent);
  background: rgba(157,248,255,.05);
  font: 700 9px var(--ptb-mono);
  text-transform: uppercase;
  white-space: nowrap;
}

.ptb-viewport-canvas {
  position: relative;
  flex: 1 1 auto;
  min-height: 0;
  overflow: hidden;
  outline: 0;
  touch-action: none;
  cursor: grab;
  background:
    radial-gradient(circle at 50% 34%, rgba(157,248,255,.08), transparent 34%),
    linear-gradient(rgba(157,248,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(157,248,255,.025) 1px, transparent 1px),
    #010203;
  background-size: auto, 52px 52px, 52px 52px;
}
.ptb-viewport-canvas:active { cursor: grabbing; }
.ptb-viewport-canvas:focus-visible { box-shadow: inset 0 0 0 2px rgba(157,248,255,.5); }
.ptb-camera-stage {
  position: absolute;
  inset: 0;
  transform-origin: 0 0;
  will-change: transform;
  transition: transform .11s ease-out;
}
.ptb-viewport-canvas:active .ptb-camera-stage { transition: none; }
.ptb-adapter-surface,
.ptb-adapter-surface > div,
.ptb-camera-stage > .ptb-adapter-surface {
  width: 100%;
  height: 100%;
  min-height: 0;
}
.ptb-adapter-surface {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  transition: opacity .18s ease;
}
.ptb-model-svg,
.ptb-adapter-surface svg {
  display: block;
  width: auto;
  height: 94%;
  max-width: 96%;
  max-height: 96%;
  margin: auto;
  overflow: visible;
}
.ptb-adapter-surface [data-ptb-region] { cursor: pointer; transition: filter .16s ease, opacity .16s ease, stroke .16s ease; }
.ptb-adapter-surface [data-ptb-region][data-ptb-state="attention"] { filter: drop-shadow(0 0 5px rgba(216,183,101,.42)); stroke: var(--ptb-gold) !important; stroke-width: 2px !important; }
.ptb-adapter-surface [data-ptb-region][data-ptb-state="critical"],
.ptb-adapter-surface [data-ptb-region][data-ptb-state="anomalous"] { filter: drop-shadow(0 0 6px rgba(255,125,125,.48)); stroke: var(--ptb-danger) !important; stroke-width: 2.3px !important; }
.ptb-adapter-surface [data-ptb-region][data-ptb-state="active"] { filter: drop-shadow(0 0 6px rgba(157,255,207,.4)); stroke: var(--ptb-success) !important; stroke-width: 2px !important; }
.ptb-adapter-surface [data-ptb-region][data-ptb-state="comparison-changed"] { filter: drop-shadow(0 0 6px rgba(213,169,255,.45)); stroke: var(--ptb-purple) !important; stroke-width: 2.2px !important; }
.ptb-adapter-surface [data-ptb-region][data-ptb-state="missing"] { opacity: .46 !important; stroke-dasharray: 4 4; }
.ptb-adapter-surface [data-ptb-region][data-ptb-state="inferred"] { opacity: .76 !important; stroke: var(--ptb-accent) !important; stroke-dasharray: 5 4; }
.ptb-adapter-surface [data-ptb-region][data-ptb-hovered="true"] { filter: drop-shadow(0 0 8px rgba(157,248,255,.62)); stroke: var(--ptb-accent) !important; stroke-width: 2.4px !important; }
.ptb-adapter-surface [data-ptb-region][data-ptb-selected="true"] { filter: drop-shadow(0 0 10px rgba(157,248,255,.78)); stroke: #fff !important; stroke-width: 3px !important; opacity: 1 !important; }
.ptb-adapter-surface [data-ptb-region]:focus-visible { outline: none; filter: drop-shadow(0 0 10px rgba(157,248,255,.8)); stroke: #fff !important; }

.ptb-evidence-layer { position: absolute; inset: 0; z-index: 12; pointer-events: none; }
.ptb-evidence-marker {
  --ptb-confidence: 1;
  position: absolute;
  width: 28px;
  height: 28px;
  padding: 0;
  transform: translate(-50%, -50%);
  display: grid;
  place-items: center;
  border-radius: 999px;
  pointer-events: auto;
  color: var(--ptb-bg);
  background: var(--ptb-accent);
  box-shadow: 0 0 0 3px rgba(3,4,5,.82), 0 0 22px rgba(157,248,255,.62);
  font: 900 10px var(--ptb-mono);
}
.ptb-evidence-marker::before {
  content: "";
  position: absolute;
  inset: -5px;
  z-index: -1;
  border-radius: inherit;
  background: conic-gradient(var(--ptb-success) calc(var(--ptb-confidence-angle, 360deg)), rgba(255,255,255,.14) 0);
}
.ptb-evidence-marker:hover { transform: translate(-50%, -50%) scale(1.12); }
.ptb-viewport-help {
  position: absolute;
  left: 14px;
  bottom: 12px;
  z-index: 11;
  padding: 7px 9px;
  color: var(--ptb-muted-2);
  background: rgba(3,4,5,.65);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 9px;
  font: 700 9px var(--ptb-mono);
  letter-spacing: .04em;
  pointer-events: none;
}
.ptb-viewport-loading,
.ptb-viewport-error { width: 100%; height: 100%; display: grid; place-items: center; color: var(--ptb-muted); background: var(--ptb-bg); }
.ptb-viewport-error { color: var(--ptb-danger); }
.ptb-visually-hidden { position: absolute !important; width: 1px !important; height: 1px !important; padding: 0 !important; margin: -1px !important; overflow: hidden !important; clip: rect(0,0,0,0) !important; white-space: nowrap !important; border: 0 !important; }

@media (max-width: 1180px) {
  .ptb-viewport-toolbar { flex-wrap: wrap; }
  .ptb-toolbar-search { order: 4; flex-basis: 100%; }
  .ptb-region-search { max-width: none; }
}
@media (max-width: 720px) {
  .ptb-viewport-shell { min-height: 520px; border-radius: 14px; }
  .ptb-viewport-toolbar { align-items: stretch; gap: 8px; }
  .ptb-toolbar-variants,
  .ptb-camera-controls,
  .ptb-opacity-control { flex: 1 1 auto; }
  .ptb-variant-controls { width: 100%; }
  .ptb-variant-control { flex: 1 1 145px; justify-content: space-between; }
  .ptb-selection-count { display: none; }
  .ptb-opacity-control input { flex: 1; }
  .ptb-viewport-help { display: none; }
  .ptb-model-svg,
  .ptb-adapter-surface svg { height: 90%; max-width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  .ptb-camera-stage,
  .ptb-adapter-surface [data-ptb-region],
  .ptb-evidence-marker { transition: none !important; }
}