:root {
    --bg: #05070D;
    --panel: #0E1624;
    --secondary: #111C2E;
    --border: #243044;
    --blue: #2F80ED;
    --cyan: #00D1FF;
    --green: #22C55E;
    --amber: #F59E0B;
    --text: #F5F7FA;
    --muted: #9AA4B2;
  }
  
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: 'Inter', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    overflow: hidden;
    height: 100vh;
    display: flex;
    flex-direction: column;
  }
  
  /* TOP MENU */
  .top-menu {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--panel);
    border-bottom: 1px solid var(--border);
    padding: 0.25rem 1rem;
    height: 40px;
    flex-shrink: 0;
  }
  
  .menu-left {
    display: flex;
    align-items: center;
    gap: 1rem;
  }
  
  .logo {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text);
  }
  
  .logo span {
    color: var(--blue);
  }
  
  .menu-items {
    display: flex;
    gap: 0.75rem;
  }
  
  .menu-items span {
    cursor: pointer;
    color: var(--muted);
    font-size: 0.85rem;
    font-weight: 500;
  }
  
  .menu-items span:hover {
    color: var(--text);
  }
  
  .quick-toolbar {
    display: flex;
    gap: 0.35rem;
  }
  
  .quick-toolbar button {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--muted);
    width: 28px;
    height: 28px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  .quick-toolbar button:hover {
    background: var(--border);
    color: var(--text);
  }
  
  /* WORKSPACE */
  .workspace {
    display: flex;
    flex: 1;
    min-height: 0;
  }
  
  /* LEFT PALETTE */
  .left-palette {
    background: var(--panel);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    padding: 0.5rem 0.25rem;
    width: 42px;
    flex-shrink: 0;
    overflow-y: auto;
  }
  
  .tool-btn {
    background: transparent;
    border: none;
    color: var(--muted);
    width: 34px;
    height: 34px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
  }
  
  .tool-btn:hover {
    background: var(--secondary);
    color: var(--text);
  }
  
  .tool-btn.active {
    background: var(--blue);
    color: white;
  }
  
  /* VIEWPORT */
  .viewport-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg);
    position: relative;
  }
  
  .viewport-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.25rem 1rem;
    background: var(--panel);
    border-bottom: 1px solid var(--border);
  }
  
  .view-buttons {
    display: flex;
    gap: 0.25rem;
  }
  
  .view-btn {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--muted);
    padding: 0.15rem 0.6rem;
    border-radius: 4px;
    font-size: 0.75rem;
    cursor: pointer;
  }
  
  .view-btn.active {
    background: var(--blue);
    color: white;
    border-color: var(--blue);
  }
  
  .view-label {
    font-size: 0.8rem;
    color: var(--cyan);
  }
  
  .canvas-area {
    flex: 1;
    min-height: 0;
  }
  
  /* RIGHT SIDEBAR */
  .right-sidebar {
    width: 260px;
    background: var(--panel);
    border-left: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
  }
  
  .tab-buttons {
    display: flex;
    flex-wrap: wrap;
    border-bottom: 1px solid var(--border);
  }
  
  .tab {
    background: transparent;
    border: none;
    color: var(--muted);
    padding: 0.5rem 0.6rem;
    font-size: 0.75rem;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    flex: 1 1 auto;
    text-align: center;
  }
  
  .tab.active {
    color: var(--text);
    border-bottom-color: var(--blue);
    background: var(--secondary);
  }
  
  .panel-content {
    flex: 1;
    overflow-y: auto;
    padding: 0.75rem;
  }
  
  .panel {
    display: none;
  }
  
  .panel.active {
    display: block;
  }
  
  /* Properties form */
  .prop-group {
    margin-bottom: 0.75rem;
  }
  
  .prop-group label {
    display: block;
    font-size: 0.7rem;
    color: var(--muted);
    margin-bottom: 0.15rem;
  }
  
  .prop-group input,
  .prop-group select {
    width: 100%;
    background: var(--secondary);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 0.25rem 0.4rem;
    border-radius: 3px;
    font-size: 0.8rem;
  }
  
  /* Layers panel */
  .layer-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.2rem 0;
    font-size: 0.8rem;
  }
  
  .layer-color {
    width: 10px;
    height: 10px;
    border-radius: 2px;
  }
  
  /* Materials panel */
  .material-item {
    padding: 0.2rem 0;
    cursor: pointer;
    font-size: 0.8rem;
  }
  
  .material-item:hover {
    color: var(--blue);
  }
  
  /* Objects list */
  .object-item {
    padding: 0.2rem 0;
    cursor: pointer;
    font-size: 0.8rem;
    border-bottom: 1px solid var(--border);
  }
  
  .object-item:hover {
    background: var(--secondary);
  }
  
  .object-item.selected {
    background: var(--blue);
    color: white;
  }
  
  /* Templates */
  .template-btn {
    display: block;
    width: 100%;
    background: var(--secondary);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 0.4rem;
    margin-bottom: 0.35rem;
    border-radius: 4px;
    cursor: pointer;
    text-align: left;
    font-size: 0.8rem;
  }
  
  .template-btn:hover {
    border-color: var(--blue);
  }
  
  /* BOTTOM AREA */
  .bottom-area {
    background: var(--panel);
    border-top: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
  }
  
  .command-line {
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--border);
    padding: 0.2rem 0.5rem;
  }
  
  .command-line input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--cyan);
    font-family: 'Space Grotesk', monospace;
    font-size: 0.85rem;
    outline: none;
  }
  
  .command-history {
    max-height: 60px;
    overflow-y: auto;
    color: var(--muted);
    font-size: 0.75rem;
    padding: 0.1rem 0.5rem;
    background: var(--secondary);
    margin-left: 0.5rem;
    flex: 2;
  }
  
  .status-bar {
    display: flex;
    gap: 1rem;
    padding: 0.2rem 0.5rem;
    font-size: 0.7rem;
    color: var(--muted);
  }