:root {
  color-scheme: dark;
  --bg: #10131a;
  --panel: #191f29;
  --panel-2: #1f2632;
  --border: #2d3748;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #4dabf7;
  --danger: #fa5252;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  width: 100%;
  height: 100%;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}

body {
  display: grid;
  grid-template-columns: 315px 1fr;
  grid-template-rows: 58px 1fr;
  grid-template-areas:
    "topbar topbar"
    "sidebar viewport";
}

.topbar {
  grid-area: topbar;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}

.brand {
  font-weight: 600;
}

.actions {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.actions > button,
.actions .file-label {
  width: auto;
  min-width: 116px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 12px;
  font-size: 13px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #0f172a;
  color: var(--text);
}

.actions > button:hover,
.actions .file-label:hover {
  border-color: var(--accent);
}

.actions .file-label {
  margin-top: 0;
  line-height: 1;
}

.ui-message {
  position: fixed;
  top: 74px;
  right: 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  min-height: 46px;
  padding: 10px 12px;
  border-radius: 12px;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.35;
  color: #fff1f2;
  background: linear-gradient(180deg, rgba(190, 24, 93, 0.96), rgba(159, 18, 57, 0.96));
  border: 1px solid rgba(254, 202, 202, 0.85);
  box-shadow: 0 14px 30px rgba(17, 24, 39, 0.34);
  text-align: left;
  max-width: 460px;
  z-index: 1200;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px) scale(0.98);
  transition:
    opacity 520ms ease,
    transform 520ms ease,
    visibility 0s linear 520ms;
}

.ui-message.visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0) scale(1);
  transition:
    opacity 520ms ease,
    transform 520ms ease,
    visibility 0s linear 0s;
}

.ui-message-body {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ui-message-icon {
  display: inline-flex;
  width: 16px;
  height: 16px;
  border-radius: 999px;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 800;
  color: #4a044e;
  background: #fbcfe8;
  flex: 0 0 auto;
}

.ui-message-text {
  display: inline-block;
}

.ui-message-close {
  width: 22px;
  height: 22px;
  border-radius: 999px;
  border: 1px solid rgba(254, 205, 211, 0.7);
  background: rgba(255, 255, 255, 0.1);
  color: #ffe4e6;
  cursor: pointer;
  padding: 0;
  line-height: 1;
  font-size: 15px;
}

.ui-message-close:hover {
  background: rgba(255, 255, 255, 0.22);
}

.sidebar {
  grid-area: sidebar;
  border-right: 1px solid var(--border);
  background: var(--panel);
  padding: 16px;
  overflow: auto;
}

section {
  margin-bottom: 18px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--panel-2);
}

h2 {
  margin: 0 0 10px;
  font-size: 14px;
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

button,
input {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #0f172a;
  color: var(--text);
  padding: 8px 10px;
}

button {
  cursor: pointer;
}

button:hover {
  border-color: var(--accent);
}

section label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
}

input[type="color"] {
  padding: 2px;
  height: 38px;
}

.info {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 8px;
}

.stats {
  margin: 0 0 10px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #0f172a;
  color: var(--text);
  font-size: 12px;
  line-height: 1.45;
  white-space: pre-wrap;
}

.attrs {
  margin-bottom: 10px;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #0f172a;
}

.attrs-title {
  font-size: 12px;
  color: var(--muted);
  margin: 0 0 6px;
}

.triplet {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 6px;
  margin-bottom: 8px;
}

.triplet label {
  margin: 0;
  font-size: 11px;
}

.triplet input {
  margin-top: 4px;
  padding: 6px 8px;
}

.danger {
  margin-top: 10px;
  border-color: var(--danger);
}

.file-label {
  position: relative;
  cursor: pointer;
}

.file-label input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

#viewport {
  grid-area: viewport;
  width: 100%;
  height: 100%;
  position: relative;
}

#previewPanel {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 320px;
  height: 220px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(15, 23, 42, 0.92);
  z-index: 4;
  overflow: hidden;
}

.preview-title {
  font-size: 12px;
  color: var(--muted);
  padding: 6px 10px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

#preview3d {
  width: 100%;
  height: calc(100% - 34px);
}

.preview-angle-control {
  margin: 0;
  font-size: 11px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.preview-angle-control input {
  width: 100px;
  margin: 0;
  padding: 0;
}

#frontProjection,
#topProjection {
  width: 100%;
  height: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #0b1020;
  display: block;
  margin-bottom: 8px;
}

.catalog-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
  margin-bottom: 8px;
}

.catalog-table th,
.catalog-table td {
  border: 1px solid var(--border);
  padding: 6px 8px;
  text-align: left;
}

.catalog-table th {
  color: var(--muted);
  font-weight: 600;
}

.catalog-item {
  cursor: grab;
}

.catalog-item:active {
  cursor: grabbing;
}

.catalog-item:hover {
  background: #0f172a;
}

.hint {
  font-size: 11px;
  color: var(--muted);
}