:root {
    --bg: #3d423a;
    --bg-purple: #2d1c4f;
    --bg-navy: #1a222e;
    --bg-blue: #395d76;
    --panel: #4b5249;
    --panel-2: #545d52;
    --line: #687466;
    --ink: #e8ece5;
    --ink-dim: #a3ab9d;
    --accent: #73a986;
    --accent-dim: #687466;
    --mono: 'Courier New', ui-monospace, monospace;
    --serif: Georgia, 'Times New Roman', serif;
  }
  * { box-sizing: border-box; }
  body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 13px;
    height: 100vh;
    overflow: hidden;
    accent-color: var(--accent);
  }
  .app {
    display: grid;
    grid-template-columns: 300px 1fr 340px;
    grid-template-rows: auto 1fr 200px;
    height: 100vh;
  }
  header {
    grid-column: 1 / 4;
    display: flex;
    flex-direction: column;
    align-items: center;
    overflow: hidden;
    gap: 4px;
    padding: 6px 12px;
    background:
      radial-gradient(ellipse 900px 600px at 50% 18%, rgba(57,93,118,0.55), transparent 60%),
      linear-gradient(155deg, var(--bg-purple) 0%, var(--bg-navy) 55%, var(--bg-navy) 100%);
    border-bottom: 1px solid var(--line);
  }
  .header-main {
    display: flex;
    align-items: center;
    overflow: hidden;
    gap: 8px;
  }

  .header-float {
    float:left;
    align-items: left;
    gap: 8px;
    flex-wrap: nowrap;
    overflow-x: auto;
    position: absolute;
    left: 8px;
  }

  .header-disclaimer {
    font-size: 12px;
    color: var(--ink-dim);
    opacity: 0.9;
  }
  header h1 {
    font-size: 13px;
    font-weight: 600;
    font-family: "Cinzel", serif;
    margin: 0;
    letter-spacing: 0.02em;
    color: var(--accent);
  }
  header .sub { color: var(--ink-dim); font-size: 11px; }
  .status-group {
    display: flex;
    flex-direction: column;
    gap: 1px;
    line-height: 1.3;
    white-space: nowrap;
  }
  .status-group .sub:empty { display: none; }
  header .spacer { flex: 1; }
  select, button, input[type=text], input[type=number], textarea {
    background: var(--panel-2);
    color: var(--ink);
    border: 1px solid var(--line);
    border-radius: 4px;
    padding: 4px 9px;
    font-size: 12px;
    font-family: inherit;
  }
  :focus, :focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 1px;
  }
  input[type=color]:focus, input[type=color]:focus-visible {
    outline-offset: 2px;
  }
  header button, header select {
    white-space: nowrap;
    padding: 4px 10px;
  }
  .load-buttons-group {
    display: flex;
    gap: 3px;
    align-items: stretch;
  }
  .square-btn {
    width: 70px;
    height: 47px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    font-size: 10px;
    line-height: 1.25;
    padding: 2px;
    white-space: normal;
  }
  .load-buttons-stack {
    display: flex;
    flex-direction: column;
    gap: 3px;
    height: 47px;
  }
  .load-buttons-stack button {
    flex: 1;
    padding: 0 10px;
    white-space: nowrap;
  }
  .loaded-indicator {
    background: var(--accent-dim) !important;
    border-color: var(--accent) !important;
    color: var(--ink) !important;
  }
  .loaded-indicator::after {
    content: ' ✓';
    color: var(--ink);
  }
  .el-item .mv.loaded-indicator::after {
    content: none;
  }
  button {
    cursor: pointer;
    color: var(--ink);
  }
  button:hover { border-color: var(--accent-dim); color: var(--accent); }
  button.primary {
    background: var(--accent-dim);
    border-color: var(--accent);
    color: #f5f3ea;
  }
  button.primary:hover { background: var(--accent); }
  button.small { padding: 3px 7px; font-size: 11px; }

  .elements-panel {
    grid-column: 1;
    grid-row: 2;
    background: var(--panel);
    border-right: 1px solid var(--line);
    display: flex;
    flex-direction: column;
    overflow: hidden;
  }
  .elements-panel .add-row {
    display: flex;
    gap: 6px;
    padding: 10px;
    border-bottom: 1px solid var(--line);
  }
  .elements-panel .add-row button { flex: 1; }
  .general-settings {
    padding: 10px;
    border-bottom: 1px solid var(--line);
    display: flex;
    flex-direction: column;
    gap: 8px;
  }
  .gs-head {
    font-size: 10.5px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--ink-dim);
  }
  .general-settings .field { margin-bottom: 0; }
  .general-settings label { font-size: 10.5px; }
  .elements-list {
    overflow-y: auto;
    flex: 1;
    padding: 6px;
  }
  .el-item {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 7px 8px;
    border-radius: 4px;
    margin-bottom: 3px;
    cursor: pointer;
    border: 1px solid transparent;
    border-left: 3px solid transparent;
  }
  .el-item:hover { background: var(--panel-2); }
  .el-item.selected { background: rgba(115,169,134,0.22); border-color: var(--accent); border-left-color: var(--accent); }
  .el-item.locked .label { opacity: 0.6; font-style: italic; }
  .el-item.hidden-layer .label { opacity: 0.4; text-decoration: line-through; }
  .el-item .tag {
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 2px 5px;
    border-radius: 3px;
    background: var(--line);
    color: var(--ink-dim);
    flex-shrink: 0;
  }
  .el-item .tag.texture { color: #9bb0a0; }
  .el-item .tag.text { color: #c4b98a; }
  .el-item .label {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--ink-dim);
  }
  .el-item.selected .label { color: var(--ink); }
  .el-item .mv { padding: 1px 5px; font-size: 10px; }
  .el-item .mv svg { display: block; color: var(--ink-dim); }
  .el-item .mv:hover svg { color: var(--accent); }
  .el-item.locked .mv:first-child svg { color: var(--accent); }

  .canvas-area {
    grid-column: 2;
    grid-row: 2;
    background: #525a52;
    background-image:
      linear-gradient(45deg, #556055 25%, transparent 25%),
      linear-gradient(-45deg, #556055 25%, transparent 25%),
      linear-gradient(45deg, transparent 75%, #556055 75%),
      linear-gradient(-45deg, transparent 75%, #556055 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: auto;
    position: relative;
  }
  #stage { box-shadow: 0 8px 40px rgba(0,0,0,0.6); background: #fff; }
  .canvas-hint {
    position: absolute;
    top: 10px;
    left: 10px;
    color: var(--ink-dim);
    font-size: 11px;
    background: rgba(0,0,0,0.5);
    padding: 4px 8px;
    border-radius: 4px;
  }

  .props-panel {
    grid-column: 3;
    grid-row: 2;
    background: var(--panel);
    border-left: 1px solid var(--line);
    overflow-y: auto;
    padding: 14px;
  }
  .props-panel h2 {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--ink-dim);
    margin: 0 0 10px;
  }
  .field { margin-bottom: 10px; }
  .field label {
    display: block;
    font-size: 11px;
    color: var(--ink-dim);
    margin-bottom: 3px;
  }
  .field input, .field select, .field textarea { width: 100%; }
  .field textarea { resize: vertical; min-height: 70px; font-family: var(--mono); font-size: 11px; }
  .row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
  .row3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; }
  .row4 { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 8px; }
  .color-row { display: flex; gap: 8px; align-items: center; }
  .color-row input[type=color] { width: 36px; height: 28px; padding: 2px; }
  .empty-state {
    color: var(--ink-dim);
    font-size: 12px;
    line-height: 1.6;
    padding: 20px 4px;
  }
  .hint {
    font-size: 10.5px;
    color: var(--ink-dim);
    line-height: 1.5;
    margin-top: 3px;
  }

  .bottom-panel {
    grid-column: 1 / 4;
    grid-row: 3;
    background: var(--panel);
    border-top: 1px solid var(--line);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background-color: var(--line);
  }
  .bottom-col {
    background: var(--panel);
    padding: 8px 12px;
    display: flex;
    flex-direction: column;
  }
  .bottom-col .bhead {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
  }
  .bottom-col .bhead h3 {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--ink-dim);
    margin: 0;
    flex: 1;
  }
  .bottom-col textarea {
    flex: 1;
    font-family: var(--mono);
    font-size: 10.5px;
    line-height: 1.5;
    resize: none;
  }
  .save-row {
    display: flex;
    gap: 6px;
    margin-top: 6px;
  }
  .save-row input[type=text] {
    flex: 1;
    font-family: var(--mono);
    font-size: 11px;
  }
  .badge {
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 3px;
    background: #2f4a2f;
    color: #a8d8a8;
  }
  .badge.err { background: #4a2f2f; color: #d8a8a8; }