:root {
  --bg: #0f1116;
  --panel: #161a22;
  --panel2: #11151d;
  --text: #e7e7ea;
  --muted: #9aa3b2;
  --accent: #58a6ff;
  --danger: #ff6b6b;
  --ok: #4dd4ac;
  --border: rgba(255, 255, 255, 0.08);
  --shadow: rgba(0, 0, 0, 0.5);
  font-family:
    ui-sans-serif,
    system-ui,
    -apple-system,
    Segoe UI,
    Roboto,
    Arial,
    sans-serif;
}
* {
  box-sizing: border-box;
}
html,
body {
  height: 100%;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  overflow: hidden;
}
button,
input,
select {
  font: inherit;
}
#app {
  height: 100%;
}

.layout {
  height: 100%;
  display: grid;
  grid-template-columns: 320px 1fr 360px;
  grid-template-rows: 54px 1fr 220px;
  gap: 10px;
  padding: 10px;
}
.topbar {
  grid-column: 1 / 4;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  box-shadow: 0 8px 24px var(--shadow);
}
.topbar .title {
  font-weight: 700;
  letter-spacing: 0.2px;
}
.topbar .actions {
  display: flex;
  gap: 8px;
  align-items: center;
}
.btn {
  background: #222a38;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 2px 2px;
  border-radius: 2px;
  cursor: pointer;
}
.btn:hover {
  border-color: rgba(88, 166, 255, 0.45);
}
.btn.primary {
  background: rgba(88, 166, 255, 0.16);
  border-color: rgba(88, 166, 255, 0.35);
}
.btn.danger {
  background: rgba(255, 107, 107, 0.14);
  border-color: rgba(255, 107, 107, 0.3);
}
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.pill {
  font-size: 12px;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 8px;
  background: rgba(255, 255, 255, 0.03);
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: 0 8px 24px var(--shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 0;
}
.panel header {
  padding: 10px 12px;
  font-weight: 700;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.panel header small {
  font-weight: 500;
  color: var(--muted);
}
.panel .content {
  padding: 10px 12px;
  overflow: auto;
  min-height: 0;
}
.panel .row {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}
.panel .row + .row {
  margin-top: 8px;
}
.label {
  font-size: 8px;
  color: var(--muted);
}
.hr {
  height: 1px;
  background: var(--border);
  margin: 10px 0;
}
.tabs {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.tab {
  padding: 6px 10px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  cursor: pointer;
  font-size: 13px;
}
.tab.active {
  border-color: rgba(88, 166, 255, 0.45);
  background: rgba(88, 166, 255, 0.12);
}

.viewportWrap {
  position: relative;
  width: 100%;
  height: 100%;
  background: var(--panel2);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 8px 24px var(--shadow);
}
canvas#view3d {
  width: 100%;
  height: 100%;
  display: block;
}

.layerPickers {
  position: absolute;
  left: 10px;
  bottom: 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: auto;
}
.picker {
  display: flex;
  gap: 2px;
  padding: 6px;
  background: rgba(15, 17, 22, 0.6);
  border: 1px solid var(--border);
  border-radius: 12px;
  backdrop-filter: blur(6px);
}
.picker.horizontal {
  flex-direction: row;
}
.picker.vertical {
  flex-direction: column;
}
.box {
  width: 10px;
  height: 10px;
  border-radius: 3px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
  cursor: pointer;
}
.box:hover {
  border-color: rgba(88, 166, 255, 0.45);
}
.box.active {
  background: rgba(88, 166, 255, 0.7);
  border-color: rgba(88, 166, 255, 0.9);
}
.box.dim {
  opacity: 0.45;
}
.hint {
  position: absolute;
  top: 10px;
  left: 10px;
  padding: 6px 10px;
  font-size: 12px;
  color: var(--muted);
  border: 1px solid var(--border);
  background: rgba(15, 17, 22, 0.55);
  border-radius: 999px;
  backdrop-filter: blur(6px);
}

.layersquarelight {
  background: rgba(255, 255, 255, 0.4);
}

.crossCanvas {
  width: 100%;
  max-width: 520px;
  aspect-ratio: 1/1;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #0b0e14;
  image-rendering: pixelated;
  touch-action: none;
}

.grid2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.mono {
  font-family:
    ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono",
    "Courier New", monospace;
}

.axisButtons {
  display: flex;
  gap: 6px;
  align-items: center;
  justify-content: center;
  padding: 6px;
  background: rgba(15, 17, 22, 0.6);
  border: 1px solid var(--border);
  border-radius: 12px;
  backdrop-filter: blur(6px);
}
.layerPickers {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.picker {
  padding: 6px;
}
.picker.horizontal {
  flex-direction: row;
}
.picker.vertical {
  flex-direction: column;
}
.box {
  width: 10px;
  height: 10px;
}

.facingHud {
  position: absolute;
  top: 10px;
  left: 10px;
  width: 34px; /* roughly 5x5-ish badge space */
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 10px;
  letter-spacing: 0.5px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 10px;
  background: rgba(15, 17, 22, 0.55);
  color: rgba(255, 255, 255, 0.92);
  pointer-events: none;
  user-select: none;
}

/* Main viewport layer strips */
.layerPickers {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  pointer-events: none;
}
.layerPickers .picker {
  pointer-events: auto;
  position: absolute;
  background: rgba(15, 17, 22, 0.6);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 6px;
  display: flex;
  gap: 2px;
}
.layerPickers .picker.vertical {
  flex-direction: column;
}
.layerPickers .picker.horizontal {
  flex-direction: row;
}

.layerPickers .pickerY {
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
}
.layerPickers .pickerZ {
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
}
.layerPickers .pickerX {
  left: 50%;
  bottom: 10px;
  transform: translateX(-50%);
}

.layerPickers .box {
  width: 10px;
  height: 10px;
}