:root {
  --accent: #bfa6ff;
  --accent-hover: #d5c7ff;
  --accent-strong: #7359b8;
  --accent-strong-hover: #8469cc;
  --accent-focus: rgba(191, 166, 255, .18);
  --accent-border: rgba(191, 166, 255, .76);

  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #0c0f14;
  color: #f5f7fb;
  font-synthesis: none;
}

* { box-sizing: border-box; }
html, body, #app { width: 100%; height: 100%; margin: 0; }
body { overflow: hidden; }
button, input, select { font: inherit; }

#app {
  --sidebar-width: 430px;
  --sidebar-transition-duration: 220ms;
  --sidebar-handle-fade-duration: 120ms;
  --sidebar-handle-width: 32px;
  --sidebar-handle-inline-padding: 4px;
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  overflow: hidden;
  background: #0c0f14;
}

#viewer {
  position: relative;
  min-width: 0;
  height: 100%;
  overflow: hidden;
  background: #0c0f14;
}

#canvas-host {
  position: relative;
  width: 100%;
  height: 100%;
}

#canvas-host canvas { width: 100%; height: 100%; display: block; }

#canvas-host .data-visuals {
  position: absolute;
  z-index: 1;
  inset: 0;
  pointer-events: none;
}

#canvas-host .fluid-visuals {
  background: #000;
}

#canvas-host .debug-viewer-canvas {
  position: absolute;
  z-index: 2;
  inset: 0;
  background: transparent;
}

.viewer-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  padding: 22px 24px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  z-index: 8;
  pointer-events: none;
  background: linear-gradient(to bottom, rgba(9, 11, 15, .72), transparent);
}

.viewer-overlay h1 { margin: 0; font-size: 19px; font-weight: 650; letter-spacing: -.02em; }
.viewer-overlay p { margin: 4px 0 0; color: #aeb6c5; font-size: 12px; }

.connection-qr-visibility {
  position: absolute;
  z-index: 12;
  left: 18px;
  bottom: 18px;
  opacity: 1;
  transition: opacity var(--sidebar-transition-duration) ease;
}

.connection-qr {
  display: grid;
  justify-items: center;
  gap: 6px;
  padding: 7px;
  border: 1px solid rgba(89, 99, 118, .5);
  border-radius: 8px;
  color: #9da7b9;
  background: rgba(17, 20, 26, .78);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  text-decoration: none;
  transform-origin: center;
  transition:
    border-color 120ms ease,
    background 120ms ease,
    color 120ms ease;
}

.connection-qr.copy-confirmed {
  animation: connection-qr-copy-pop 360ms cubic-bezier(.2, .8, .2, 1);
}

@keyframes connection-qr-copy-pop {
  0% { transform: scale(1); }
  45% { transform: scale(1.08); }
  100% { transform: scale(1); }
}

.connection-qr:hover {
  border-color: var(--accent-border);
  color: var(--accent-hover);
  background: rgba(28, 24, 38, .92);
}

.connection-qr-code {
  display: block;
  width: 98px;
  height: 98px;
  padding: 4px;
  border-radius: 5px;
  background: #ffffff;
}

.connection-qr-code svg {
  display: block;
  width: 100%;
  height: 100%;
}

.connection-qr-label {
  font-size: 9.5px;
  font-weight: 600;
  line-height: 1;
}

@media (prefers-reduced-motion: reduce) {
  .connection-qr.copy-confirmed {
    animation: none;
  }
}

#sidebar {
  position: absolute;
  z-index: 15;
  top: 0;
  right: 0;
  width: var(--sidebar-width);
  min-width: 0;
  height: 100%;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  border-left: 1px solid #252a35;
  background: rgba(17, 20, 26, 0.84);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  scrollbar-color: #414858 transparent;
  transform: translateX(0);
  transition: transform var(--sidebar-transition-duration) ease;
  will-change: transform;
}

#app.sidebar-hidden #sidebar {
  transform: translateX(100%);
  pointer-events: none;
}

.sidebar-footer {
  margin-top: auto;
  padding: 22px 18px 16px;
  color: #8f99aa;
  background: linear-gradient(
    to bottom,
    rgba(12, 15, 20, 0),
    rgba(12, 15, 20, .58)
  );
}

.sidebar-footer-app {
  display: grid;
  gap: 2px;
}

.sidebar-footer-title {
  color: #8f99aa;
  font-size: 11.5px;
  font-weight: 650;
  letter-spacing: .01em;
}

.sidebar-footer-subtitle {
  color: #737d8e;
  font-size: 9.5px;
  line-height: 1.35;
}

.sidebar-footer-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 10px;
  font-size: 9.5px;
}

.sidebar-footer-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #9da7b9;
  text-decoration: none;
  transition: color 120ms ease;
}

.sidebar-footer-link:hover {
  color: var(--accent-hover);
}

.sidebar-footer-link:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

.sidebar-footer-link img {
  display: block;
  width: 16px;
  height: 16px;
  object-fit: contain;
  opacity: .68;
}

/* Desktop resize strip: invisible until the panel edge is hovered/focused. */
.sidebar-resizer {
  position: absolute;
  z-index: 19;
  top: 0;
  right: calc(var(--sidebar-width) - 6px);
  width: 12px;
  height: 100%;
  cursor: col-resize;
  touch-action: none;
  outline: none;
}

.sidebar-resizer::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 4px;
  width: 4px;
  height: 54px;
  border-radius: 999px;
  background: #6b7484;
  opacity: 0;
  transform: translateY(-50%);
  transition: opacity 120ms ease, background 120ms ease;
}

.sidebar-resizer:hover::after,
.sidebar-resizer:focus-visible::after,
#app.sidebar-resizing .sidebar-resizer::after {
  opacity: .9;
  background: var(--accent);
}

#app.sidebar-hidden .sidebar-resizer {
  display: none;
}

#app.sidebar-resizing,
#app.sidebar-resizing * {
  cursor: col-resize !important;
  user-select: none !important;
}

#app.sidebar-resizing #sidebar,
#app.sidebar-resizing .sidebar-toggle {
  transition: none;
}

#app.sidebar-no-transition #sidebar,
#app.sidebar-no-transition .sidebar-toggle,
#app.sidebar-no-transition .connection-qr-visibility {
  transition: none;
}

.sidebar-toggle {
  position: absolute;
  z-index: 20;
  top: 50%;
  right: var(--sidebar-width);
  width: var(--sidebar-handle-width);
  height: 64px;
  min-height: 64px;
  padding: 0 var(--sidebar-handle-inline-padding);
  transform: translateY(-50%);
  border-right: 0;
  border-radius: 8px 0 0 8px;
  color: #aeb8c9;
  background: #171b23;
  font-size: 18px;
  line-height: 1;
  transition:
    right var(--sidebar-transition-duration) ease,
    background 120ms ease,
    color 120ms ease,
    opacity var(--sidebar-handle-fade-duration) ease-out;
}

.sidebar-toggle:hover {
  color: #eef2f8;
  background: #222834;
}

#app.sidebar-hidden .sidebar-toggle {
  right: 0;
}

@media (min-width: 901px) {
  #app.sidebar-hidden .connection-qr-visibility {
    opacity: 0;
    pointer-events: none;
  }
}

#app.sidebar-handle-idle {
  --sidebar-handle-fade-duration: 1200ms;
}

#app.sidebar-handle-idle .sidebar-toggle {
  opacity: 0;
  pointer-events: none;
}

label { display: block; margin: 0 0 6px; color: #9da7b9; font-size: 11px; font-weight: 600; }
input:not([type="checkbox"]), select {
  width: 100%;
  min-height: 38px;
  padding: 8px 10px;
  border: 1px solid #343b49;
  border-radius: 7px;
  outline: none;
  color: #eef2f8;
  background: #171b23;
}
input:not([type="checkbox"]):focus, select:focus { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-focus); }

.button-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 9px; margin-top: 13px; }
.button-row button { width: 100%; min-width: 0; }
button {
  min-height: 36px;
  border: 1px solid #353c4b;
  border-radius: 7px;
  color: #e9edf5;
  background: #1a1f29;
  cursor: pointer;
}
button:hover { background: #222834; }
button.primary { border-color: var(--accent); background: var(--accent-strong); }
button.primary:hover { background: var(--accent-strong-hover); }
button.active { border-color: #3f8d68; background: #1c4d36; }
button.active:hover { background: #245f43; }
button.subtle-button {
  border-color: transparent;
  color: #9da7b9;
  background: transparent;
  font-size: 12px;
}
button.subtle-button:hover,
button.subtle-button.active:hover {
  border-color: var(--accent-border);
  color: var(--accent-hover);
  background: var(--accent-focus);
}
button.subtle-button.active {
  border-color: transparent;
  color: #9da7b9;
  background: transparent;
}
.status { justify-self: end; min-width: 76px; padding: 4px 8px; border-radius: 999px; text-align: center; font-size: 10px; font-weight: 700; letter-spacing: .03em; text-transform: uppercase; }
.status.idle { color: #aeb6c5; background: #272d38; }
.status.connecting { color: #f4ce78; background: #3a2f19; }
.status.connected, .status.demo { color: #92efbb; background: #173627; }
.status.error { color: #ff9b9b; background: #431e22; }

.hint { margin: 12px 0 0; color: #737d8e; font-size: 10.5px; line-height: 1.45; }
.connection-log { margin-top: 10px; }

.field-subtitle {
  margin: 5px 0 0;
  color: #737d8e;
  font-size: 9.5px;
  font-weight: 400;
  line-height: 1.25;
}

.display-scenes { margin-bottom: var(--section-space-relaxed); }
.field-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--section-space);
  margin-bottom: 6px;
}
.field-heading label { margin: 0; }
.display-scenes select { min-height: 34px; }
.toggles { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.toggle-column { display: grid; align-content: start; gap: var(--section-space); }
.toggles label { margin: 0; display: flex; align-items: center; gap: 7px; font-weight: 500; color: #c5ccd8; }
.toggles input {
  width: 14px;
  height: 14px;
  min-height: 14px;
  margin: 0;
  padding: 0;
  outline: none;
  box-shadow: none;
  accent-color: var(--accent);
  -webkit-tap-highlight-color: transparent;
}


.visual-preset-field {
  display: grid;
  gap: 6px;
  margin-bottom: var(--section-space-relaxed);
}

.preset-actions {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.preset-actions .text-action[disabled] {
  color: #626b7a;
  cursor: default;
}

.visual-master-toggle {
  margin-bottom: var(--section-space);
}

.visual-controls {
  gap: var(--section-space-relaxed);
}

.visual-control-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--section-space);
}

.visual-range-control {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 5px 10px;
  margin: 0;
  color: #aab3c2;
  font-size: 10px;
  font-weight: 500;
}

.visual-range-control > span {
  min-width: 0;
}

.visual-range-control output {
  min-width: 34px;
  color: #8791a2;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 9.5px;
  text-align: right;
}

.visual-range-control input[type="range"] {
  grid-column: 1 / -1;
  width: 100%;
  height: 16px;
  min-height: 16px;
  margin: 0;
  padding: 0;
  border: 0;
  outline: none;
  background: transparent;
  box-shadow: none;
  accent-color: var(--accent);
}

.visual-range-control input[type="range"]:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 3px;
}

.visual-toggle-grid {
  margin-top: 2px;
}

.visual-action-button {
  width: 100%;
}

.data-overlay-controls {
  margin-bottom: var(--section-space-relaxed);
}

.data-panel-actions {
  margin-top: var(--section-space-relaxed);
}

.debug-content { display: grid; gap: 9px; }
.empty-state { padding: 22px 14px; border: 1px dashed #303746; border-radius: 8px; color: #778194; text-align: center; font-size: 11px; line-height: 1.5; }

.debug-content details { border: 1px solid #2b313d; border-radius: 8px; background: #151922; overflow: hidden; }
.debug-content summary { padding: 10px 11px; color: #dbe1eb; cursor: pointer; font-size: 11px; font-weight: 650; user-select: none; }
.debug-content details[open] > summary { border-bottom: 1px solid #2b313d; }
.debug-block { padding: 10px 11px; font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace; font-size: 10px; line-height: 1.55; color: #aeb8c9; white-space: pre-wrap; overflow-wrap: anywhere; }
.debug-table { width: 100%; border-collapse: collapse; font-size: 10px; }
.objects-table { table-layout: fixed; }
.objects-table .id-column { width: 16%; }
.objects-table .cluster-column { width: 55%; }
.objects-table .points-column { width: 29%; }
.debug-table th, .debug-table td { padding: 6px 8px; border-bottom: 1px solid #262c37; text-align: left; vertical-align: top; }
.debug-table th { color: #7f8b9f; font-weight: 650; }
.debug-table td {
  color: #c4ccd8;
  font-family: "SFMono-Regular", Consolas, monospace;
  white-space: normal;
  overflow-wrap: anywhere;
  word-break: break-word;
}
.debug-table tr:last-child td { border-bottom: 0; }
.muted { color: #6f798b; }

/* Sidebar section hierarchy: compact top-level sections with denser Advanced controls. */
.panel-section {
  flex: 0 0 auto;
  --section-title-size: 13px;
  --advanced-title-size: 10.5px;
  --disclosure-chevron-size: .54em;
  --disclosure-chevron-stroke: .115em;
  --section-space: 8px;
  --section-space-relaxed: calc(var(--section-space) * 1.5);
  --section-space-compact: calc(var(--section-space) * .5);

  margin: 0;
  padding: 0;
  border: 0;
  border-bottom: 1px solid #252a35;
  border-radius: 0;
  background: transparent;
  overflow: visible;
}

.panel-section > summary {
  display: grid;
  grid-template-columns: 12px minmax(0, 1fr) auto;
  align-items: center;
  gap: 9px;
  min-height: 42px;
  margin: 0;
  padding: 13px 18px;
  border: 0;
  color: #f5f7fb;
  background: transparent;
  font-size: var(--section-title-size);
  cursor: pointer;
  list-style: none;
  user-select: none;
}

.panel-section > summary::-webkit-details-marker,
.advanced-panel > summary::-webkit-details-marker {
  display: none;
}

.panel-section > summary,
.advanced-panel > summary {
  -webkit-tap-highlight-color: transparent;
}

.panel-section > summary:hover {
  background: rgba(255, 255, 255, .028);
}

.panel-section > summary:focus-visible {
  outline: 1px solid #3b4351;
  outline-offset: -1px;
  background: #151922;
}

.panel-section[open] > summary {
  border-bottom: 0;
  padding-bottom: 12px;
  background: #151922;
}

.panel-section[open] > summary:hover {
  background: #181d26;
}

.panel-section:not([open]) > summary {
  height: 44px;
  min-height: 44px;
  padding-top: 0;
  padding-bottom: 0;
}

.section-chevron {
  width: var(--disclosure-chevron-size);
  height: var(--disclosure-chevron-size);
  border-right: var(--disclosure-chevron-stroke) solid #7f899b;
  border-bottom: var(--disclosure-chevron-stroke) solid #7f899b;
  transform: rotate(-45deg);
  transform-origin: center;
  transition: transform 140ms ease, border-color 120ms ease;
}

.panel-section[open] > summary .section-chevron {
  transform: rotate(45deg);
  border-color: #aeb8c9;
}

.panel-heading-copy {
  min-width: 0;
  display: grid;
  gap: 2px;
}

.panel-title {
  font-size: 1em;
  font-weight: 650;
  letter-spacing: .01em;
}

.panel-subtitle {
  color: #7f899b;
  font-size: 11px;
  font-weight: 400;
}

.panel-section:not([open]) > summary .panel-subtitle {
  display: none;
}

.panel-section:not([open]) .panel-title {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.panel-summary-value {
  justify-self: end;
  max-width: 150px;
  overflow: hidden;
  color: #8f99aa;
  font-size: 10.5px;
  font-weight: 550;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.panel-content {
  padding: var(--section-space-relaxed) 18px var(--section-space);
}

.panel-content:has(> .panel-actions:first-child) {
  padding-top: var(--section-space);
}

.advanced-panel {
  margin-top: var(--section-space-relaxed);
  margin-left: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  overflow: visible;
}

.advanced-panel > summary {
  display: grid;
  grid-template-columns: 1em auto minmax(1.4em, 1fr) auto;
  align-items: center;
  gap: .55em;
  min-height: 30px;
  padding: var(--section-space-compact) 0;
  border: 0;
  color: #7f899b;
  background: transparent;
  cursor: pointer;
  list-style: none;
  font-size: var(--advanced-title-size);
  user-select: none;
  font-weight: 650;
}

.advanced-panel > summary::before,
.advanced-panel > summary::after {
  content: "";
  grid-row: 1;
  align-self: center;
  height: 1px;
  background: #2b313d;
}

.advanced-panel > summary::before {
  grid-column: 1;
}

.advanced-panel > summary::after {
  grid-column: 3;
}

.advanced-label {
  grid-column: 2;
  grid-row: 1;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  white-space: nowrap;
}

.advanced-label::before {
  content: "";
  width: var(--disclosure-chevron-size);
  height: var(--disclosure-chevron-size);
  border-right: var(--disclosure-chevron-stroke) solid #737d8e;
  border-bottom: var(--disclosure-chevron-stroke) solid #737d8e;
  transform: rotate(-45deg);
  transform-origin: center;
  transition: transform 140ms ease, border-color 120ms ease;
}

.advanced-panel[open] > summary .advanced-label::before {
  transform: rotate(45deg);
  border-color: #9ba5b5;
}

.advanced-panel[open] > summary {
  border-bottom: 0;
}

.advanced-summary-value {
  grid-column: 4;
  grid-row: 1;
  align-self: center;
  min-width: 0;
  max-width: 130px;
  overflow: hidden;
  color: #697385;
  font-size: 9.5px;
  font-weight: 500;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.advanced-content {
  display: grid;
  gap: var(--section-space);
  padding: var(--section-space-compact) 0 0 14px;
}

.advanced-panel:last-child[open] > .advanced-content {
  padding-bottom: var(--section-space-compact);
}

.advanced-grid {
  display: grid;
  gap: var(--section-space);
}

.connection-advanced-grid {
  grid-template-columns: 72px minmax(0, 1fr) 112px;
  align-items: start;
}

.advanced-panel label {
  margin-bottom: 4px;
  color: #8791a2;
  font-size: 10px;
}

.advanced-panel input:not([type="checkbox"]),
.advanced-panel select {
  height: 32px;
  min-height: 32px;
  padding: 0 8px;
  border-radius: 6px;
  font-size: 11px;
  line-height: 1.2;
}

.advanced-panel select {
  line-height: normal;
}

.advanced-toggle {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 7px;
  font-weight: 500;
  color: #aab3c2;
}

.advanced-toggle input {
  width: 14px;
  height: 14px;
  min-height: 14px;
  margin: 0;
  padding: 0;
  outline: none;
  box-shadow: none;
  accent-color: var(--accent);
  -webkit-tap-highlight-color: transparent;
}

.toggles input:focus-visible,
.advanced-toggle input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.panel-section.debug-panel {
  padding-bottom: 0;
}

.debug-panel > summary.section-summary {
  position: sticky;
  top: 0;
  z-index: 3;
}

.panel-actions {
  display: flex;
  justify-content: flex-end;
  margin: 0 0 var(--section-space);
}

.text-action {
  min-height: auto;
  padding: 0;
  border: 0;
  border-radius: 0;
  color: #9da7b9;
  background: transparent;
  font-size: 10.5px;
  text-decoration: none;
}

.text-action:hover {
  color: var(--accent-hover);
  background: transparent;
}

.text-action:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 3px;
}

@media (max-width: 900px), (pointer: coarse) and (max-width: 1100px) {
  body { overflow: auto; }

  #app {
    height: auto;
    min-height: 100vh;
    min-height: 100dvh;
    grid-template-columns: 1fr;
    grid-template-rows: 58vh auto;
    grid-template-rows: 58dvh auto;
    overflow: visible;
  }

  #app.sidebar-hidden {
    height: 100vh;
    height: 100dvh;
    min-height: 100vh;
    min-height: 100dvh;
    grid-template-rows: 100vh 0;
    grid-template-rows: 100dvh 0;
    overflow: hidden;
  }

  #sidebar {
    position: static;
    width: auto;
    height: auto;
    overflow: visible;
    border-left: 0;
    border-top: 1px solid #252a35;
    transform: none;
    pointer-events: auto;
  }

  #app.sidebar-hidden #sidebar {
    display: none;
  }

  .sidebar-resizer { display: none; }

  .sidebar-toggle {
    display: block;
    top: 58vh;
    top: 58dvh;
    right: 12px;
    bottom: auto;
    width: 42px;
    height: 28px;
    min-height: 28px;
    transform: translateY(-50%);
    border: 1px solid #343b49;
    border-radius: 999px;
    background: rgba(23, 27, 35, .94);
    font-size: 14px;
    opacity: 1;
    pointer-events: auto;
  }

  #app.sidebar-hidden .sidebar-toggle {
    top: auto;
    right: 12px;
    bottom: max(12px, env(safe-area-inset-bottom));
    transform: none;
  }

  #app.sidebar-handle-idle .sidebar-toggle {
    opacity: 1;
    pointer-events: auto;
  }

  #app.sidebar-hidden .connection-qr-visibility {
    opacity: 1;
    pointer-events: auto;
  }

  .viewer-overlay { padding: 16px; }
  .connection-qr-visibility {
    left: 12px;
    bottom: 12px;
  }
  .connection-qr {
    padding: 5px;
  }
  .connection-qr-code {
    width: 80px;
    height: 80px;
    padding: 3px;
  }
  .connection-qr-label { font-size: 8.5px; }
  .connection-advanced-grid {
    grid-template-columns: 72px minmax(0, 1fr);
  }
  .connection-advanced-grid > :last-child {
    grid-column: 1 / -1;
  }
}