/* Sexy CAD — Professional UI v3 (Figma-style layout) */

/* ─── Grid Layout ─── */
.cad-container {
    display: grid;
    grid-template-columns: 44px 260px 1fr 280px;
    grid-template-rows: 36px 30px 1fr 36px;
    grid-template-areas:
        "menu    menu     menu     menu"
        "tools   doctabs  doctabs  doctabs"
        "tools   left     canvas   right"
        "tools   context  context  right";
    height: calc(100vh - 120px);
    overflow: hidden;
}

/* ─── Menu Bar ─── */
.cad-menubar {
    grid-area: menu;
    display: flex; align-items: center; gap: 0;
    padding: 0 8px;
    background: var(--bg-secondary); border-bottom: 1px solid var(--border);
}
.cad-menu-drop {
    position: relative;
}
.cad-menu-trigger {
    padding: 6px 14px; border: none; background: transparent;
    color: var(--text-secondary); cursor: pointer; font-size: 12px; font-weight: 600;
    font-family: var(--font); border-radius: 4px; transition: var(--transition);
}
.cad-menu-trigger:hover { background: var(--bg-hover); color: var(--text-primary); }
.cad-menu-trigger.open { background: var(--bg-tertiary); color: var(--text-primary); }
.cad-menu-panel {
    display: none; position: absolute; top: 100%; left: 0; z-index: 100;
    min-width: 220px; padding: 4px;
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-sm); box-shadow: var(--shadow-lg);
}
.cad-menu-panel.open { display: block; }
.cad-menu-panel .m-item {
    display: flex; align-items: center; justify-content: space-between;
    padding: 7px 12px; border-radius: 4px; cursor: pointer;
    font-size: 12px; color: var(--text-primary); transition: var(--transition);
}
.cad-menu-panel .m-item:hover { background: var(--accent-subtle); color: var(--accent); }
.cad-menu-panel .m-item .m-shortcut { font-size: 10px; color: var(--text-muted); font-family: var(--font-mono); }
.cad-menu-panel .m-sep { height: 1px; background: var(--border); margin: 3px 8px; }
.cad-menubar .menu-right { margin-left: auto; display: flex; gap: 4px; align-items: center; }
.cad-menubar .menu-btn {
    width: 28px; height: 28px; border: none; background: transparent;
    color: var(--text-muted); cursor: pointer; border-radius: 4px;
    display: flex; align-items: center; justify-content: center; font-size: 14px;
    transition: var(--transition);
}
.cad-menubar .menu-btn:hover { background: var(--bg-hover); color: var(--text-primary); }

/* ─── Vertical Tool Strip ─── */
.cad-toolstrip {
    grid-area: tools;
    background: var(--bg-secondary); border-right: 1px solid var(--border);
    display: flex; flex-direction: column; align-items: center;
    padding: 4px 2px; gap: 2px; overflow-y: auto;
}
.cad-ts-btn {
    width: 36px; height: 34px; border: 1px solid transparent; background: transparent;
    color: var(--text-muted); border-radius: 6px; cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: var(--transition); position: relative;
}
.cad-ts-btn:hover { background: var(--bg-hover); color: var(--text-primary); }
.cad-ts-btn.active { background: var(--accent-subtle); color: var(--accent); border-color: var(--accent); }
.cad-ts-btn svg { width: 18px; height: 18px; fill: currentColor; }
.cad-ts-btn[data-tooltip]:hover::after {
    content: attr(data-tooltip); position: absolute; left: 46px; top: 50%;
    transform: translateY(-50%); padding: 4px 10px; background: var(--bg-primary);
    border: 1px solid var(--border); border-radius: 5px; font-size: 11px;
    white-space: nowrap; z-index: 50; color: var(--text-secondary);
    font-family: var(--font); font-weight: 500; pointer-events: none;
}
.cad-ts-sep { width: 28px; height: 1px; background: var(--border); margin: 3px 0; }
.cad-ts-color {
    width: 28px; height: 28px; border: 2px solid var(--border); border-radius: 5px;
    cursor: pointer; padding: 0; margin-top: 2px;
}
.cad-ts-color::-webkit-color-swatch-wrapper { padding: 0; }
.cad-ts-color::-webkit-color-swatch { border: none; border-radius: 3px; }

/* ─── Document Tabs ─── */
.cad-doc-tabs {
    grid-area: doctabs;
    display: flex; align-items: center;
    background: var(--bg-secondary); border-bottom: 1px solid var(--border);
    min-height: 30px;
}
.cad-doc-tabs-scroll { display: flex; gap: 2px; flex: 1; overflow-x: auto; padding: 2px 6px; scrollbar-width: none; }
.cad-doc-tabs-scroll::-webkit-scrollbar { display: none; }
.cad-doc-tab {
    display: flex; align-items: center; gap: 6px; padding: 4px 12px;
    background: var(--bg-tertiary); border: 1px solid var(--border);
    border-radius: 5px 5px 0 0; cursor: pointer; font-size: 11px; font-weight: 500;
    color: var(--text-muted); white-space: nowrap; max-width: 160px; transition: var(--transition);
}
.cad-doc-tab:hover { background: var(--bg-hover); color: var(--text-secondary); }
.cad-doc-tab.active { background: var(--bg-primary); color: var(--text-primary); font-weight: 600; border-bottom-color: var(--bg-primary); }
.cad-doc-tab-close { width: 14px; height: 14px; border: none; background: transparent; color: var(--text-muted); cursor: pointer; border-radius: 3px; display: flex; align-items: center; justify-content: center; font-size: 10px; opacity: 0; }
.cad-doc-tab:hover .cad-doc-tab-close { opacity: 0.7; }
.cad-doc-tab-close:hover { opacity: 1; color: var(--danger); }
.cad-tab-add { width: 24px; height: 24px; border: 1px dashed var(--border); background: transparent; color: var(--text-muted); cursor: pointer; border-radius: 5px; font-size: 14px; display: flex; align-items: center; justify-content: center; margin: 0 6px; transition: var(--transition); }
.cad-tab-add:hover { border-color: var(--accent); color: var(--accent); }

/* ─── Left Panel ─── */
.cad-left { grid-area: left; background: var(--bg-secondary); border-right: 1px solid var(--border); display: flex; flex-direction: column; overflow-y: auto; overflow-x: hidden; min-height: 0; }

/* ─── Canvas ─── */
.cad-canvas-wrapper { grid-area: canvas; display: grid; grid-template-columns: 26px 1fr; grid-template-rows: 26px 1fr; overflow: hidden; min-height: 0; }
.cad-canvas-area { grid-column: 2; grid-row: 2; position: relative; overflow: hidden; background: #262938; }
[data-theme="light"] .cad-canvas-area { background: #c8cdd8; }
.cad-canvas-area canvas { display: block; }

/* ─── Right Panel ─── */
.cad-right { grid-area: right; background: var(--bg-secondary); border-left: 1px solid var(--border); display: flex; flex-direction: column; overflow-y: auto; overflow-x: hidden; min-height: 0; }

/* ─── Contextual Action Bar ─── */
.cad-context-bar {
    grid-area: context;
    display: flex; align-items: center; gap: 4px; padding: 3px 10px;
    background: var(--bg-secondary); border-top: 1px solid var(--border);
    overflow-x: auto; min-height: 0;
}
.cad-context-bar .cb-btn {
    padding: 4px 10px; border: 1px solid var(--border); background: var(--bg-tertiary);
    color: var(--text-secondary); border-radius: 4px; cursor: pointer;
    font-size: 11px; font-weight: 600; font-family: var(--font);
    white-space: nowrap; transition: var(--transition);
}
.cad-context-bar .cb-btn:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-subtle); }
.cad-context-bar .cb-sep { width: 1px; height: 20px; background: var(--border); flex-shrink: 0; }
.cad-context-bar .cb-label { font-size: 10px; color: var(--text-muted); font-weight: 600; }
.cad-context-bar .cb-input {
    padding: 3px 6px; border: 1px solid var(--border); background: var(--bg-tertiary);
    color: var(--text-primary); border-radius: 4px; font-size: 11px;
    font-family: var(--font-mono); width: 50px;
}
.cad-context-bar .cb-input:focus { outline: none; border-color: var(--accent); }

/* ─── Status Bar ─── */
.cad-status-bar {
    display: flex; align-items: center; gap: 16px; padding: 2px 14px;
    background: rgba(12, 14, 20, 0.9); backdrop-filter: blur(6px);
    border-top: 1px solid var(--border);
    font-size: 10px; font-family: var(--font-mono); color: var(--text-muted); z-index: 8;
}
.cad-status-bar .status-unit { color: var(--accent); font-weight: 600; }
.cad-status-bar .status-dims { margin-left: auto; }

/* ─── Right-Click Context Menu ─── */
.cad-ctx-menu {
    display: none; position: fixed; z-index: 200;
    min-width: 200px; padding: 4px;
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-sm); box-shadow: var(--shadow-lg);
}
.cad-ctx-menu.visible { display: block; }
.cad-ctx-menu .m-item {
    display: flex; align-items: center; justify-content: space-between;
    padding: 7px 12px; border-radius: 4px; cursor: pointer;
    font-size: 12px; color: var(--text-primary); transition: var(--transition);
}
.cad-ctx-menu .m-item:hover { background: var(--accent-subtle); color: var(--accent); }
.cad-ctx-menu .m-shortcut { font-size: 10px; color: var(--text-muted); font-family: var(--font-mono); }
.cad-ctx-menu .m-sep { height: 1px; background: var(--border); margin: 3px 8px; }

/* ─── Shared: New Doc, Presets, Components, Materials, etc. ─── */
.cad-new-doc-overlay { position: absolute; inset: 0; z-index: 10; display: flex; align-items: center; justify-content: center; background: rgba(12, 14, 20, 0.7); backdrop-filter: blur(6px); }
.cad-new-doc-panel { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; width: 580px; max-width: 95vw; box-shadow: var(--shadow-lg); max-height: 88vh; overflow-y: auto; }
.cad-new-doc-panel h2 { font-size: 20px; font-weight: 800; margin-bottom: 4px; }

.preset-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin: 12px 0; }
.preset-card { padding: 14px 10px; border: 1px solid var(--border); background: var(--bg-tertiary); border-radius: var(--radius-sm); cursor: pointer; text-align: center; transition: var(--transition); }
.preset-card:hover { border-color: var(--accent); background: var(--accent-subtle); transform: translateY(-2px); }
.preset-card.active { border-color: var(--accent); background: var(--accent-subtle); box-shadow: 0 0 0 1px var(--accent); }
.preset-card-icon { font-size: 22px; opacity: 0.5; margin-bottom: 6px; display: flex; align-items: center; justify-content: center; }
.preset-card-icon .page-icon { display: inline-block; border: 2px solid currentColor; border-radius: 2px; background: rgba(255,255,255,0.08); }
.preset-card-name { font-size: 13px; font-weight: 700; color: var(--text-primary); }
.preset-card-dims { font-size: 10px; color: var(--text-muted); font-family: var(--font-mono); margin-top: 3px; }

.comp-search { padding: 6px 10px; border: 1px solid var(--border); background: var(--bg-tertiary); color: var(--text-primary); border-radius: var(--radius-xs); font-size: 12px; width: 100%; font-family: var(--font); margin-bottom: 6px; }
.comp-search:focus { outline: none; border-color: var(--accent); }
.comp-category-tabs { display: flex; gap: 2px; overflow-x: auto; padding-bottom: 4px; scrollbar-width: none; margin-bottom: 6px; }
.comp-category-tabs::-webkit-scrollbar { display: none; }
.comp-cat-tab { padding: 3px 8px; border: 1px solid var(--border); background: var(--bg-tertiary); color: var(--text-muted); border-radius: 10px; cursor: pointer; font-size: 9px; font-weight: 600; white-space: nowrap; transition: var(--transition); }
.comp-cat-tab:hover { color: var(--text-secondary); border-color: var(--border-light); }
.comp-cat-tab.active { background: var(--accent-subtle); color: var(--accent); border-color: var(--accent); }
.comp-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; }
.comp-item { padding: 8px 6px; border: 1px solid var(--border); background: var(--bg-tertiary); border-radius: var(--radius-xs); cursor: pointer; text-align: center; transition: var(--transition); font-size: 11px; }
.comp-item:hover { border-color: var(--accent); background: var(--accent-subtle); transform: translateY(-1px); }
.comp-item-name { font-weight: 600; color: var(--text-primary); line-height: 1.2; }
.comp-item-dims { font-size: 9px; color: var(--text-muted); font-family: var(--font-mono); margin-top: 2px; }
.comp-item-icon { width: 100%; height: 28px; display: flex; align-items: center; justify-content: center; margin-bottom: 4px; opacity: 0.5; }
.comp-item-icon .ci-rect { border: 1.5px solid currentColor; border-radius: 2px; }

.mat-grid { display: grid; grid-template-columns: 1fr; gap: 3px; }
.mat-item { display: flex; align-items: center; gap: 6px; padding: 4px 7px; border: 1px solid var(--border); border-radius: 4px; cursor: pointer; transition: var(--transition); font-size: 10px; }
.mat-item:hover { border-color: var(--accent); background: var(--bg-hover); }
.mat-item.active { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.mat-swatch { width: 18px; height: 18px; border-radius: 3px; border: 1px solid var(--border); flex-shrink: 0; }
.mat-name { font-weight: 600; color: var(--text-primary); line-height: 1.1; }
.mat-info { font-size: 8px; color: var(--text-muted); }

.align-bar { display: flex; gap: 2px; flex-wrap: wrap; }
.align-btn { width: 28px; height: 26px; border: 1px solid var(--border); background: var(--bg-tertiary); color: var(--text-muted); border-radius: 4px; cursor: pointer; display: flex; align-items: center; justify-content: center; font-size: 12px; transition: var(--transition); }
.align-btn:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-subtle); }

.transform-grid { display: grid; grid-template-columns: auto 1fr auto 1fr; gap: 4px; align-items: center; }
.transform-label { font-size: 10px; font-weight: 700; color: var(--text-muted); text-align: right; padding-right: 3px; }
.transform-input { padding: 5px 7px; border: 1px solid var(--border); background: var(--bg-tertiary); color: var(--text-primary); border-radius: 4px; font-size: 12px; font-family: var(--font-mono); width: 100%; }
.transform-input:focus { outline: none; border-color: var(--accent); }

.page-list { display: flex; flex-direction: column; gap: 2px; }
.page-item { display: flex; align-items: center; gap: 6px; padding: 4px 6px; border: 1px solid transparent; border-radius: 4px; cursor: pointer; font-size: 11px; transition: var(--transition); }
.page-item:hover { background: var(--bg-hover); border-color: var(--border); }
.page-item.active { background: var(--accent-subtle); border-color: var(--accent); }
.page-num { width: 18px; height: 18px; border-radius: 3px; background: var(--bg-tertiary); border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; font-size: 9px; font-weight: 700; color: var(--text-muted); }
.page-item.active .page-num { background: var(--accent); color: white; border-color: var(--accent); }
.page-name { flex: 1; color: var(--text-primary); font-weight: 500; }
.page-del { opacity: 0; width: 14px; height: 14px; border: none; background: transparent; color: var(--text-muted); cursor: pointer; font-size: 10px; }
.page-item:hover .page-del { opacity: 1; }
.page-del:hover { color: var(--danger); }

.cad-swatch-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 3px; }
.cad-swatch { aspect-ratio: 1; border-radius: 4px; cursor: pointer; border: 2px solid transparent; transition: var(--transition); }
.cad-swatch:hover { border-color: var(--text-primary); transform: scale(1.12); }
.cad-swatch-add { background: var(--bg-tertiary); border: 2px dashed var(--border); display: flex; align-items: center; justify-content: center; font-size: 12px; color: var(--text-muted); }

.recent-doc-list { display: flex; flex-direction: column; gap: 4px; }
.recent-doc-item { display: flex; align-items: center; gap: 8px; padding: 8px 10px; border: 1px solid var(--border); border-radius: var(--radius-xs); cursor: pointer; transition: var(--transition); }
.recent-doc-item:hover { border-color: var(--accent); background: var(--bg-hover); }
.recent-doc-name { font-size: 12px; font-weight: 600; flex: 1; }
.recent-doc-meta { font-size: 10px; color: var(--text-muted); }
.recent-doc-del { opacity: 0; width: 18px; height: 18px; border: none; background: transparent; color: var(--text-muted); cursor: pointer; border-radius: 3px; font-size: 11px; }
.recent-doc-item:hover .recent-doc-del { opacity: 1; }
.recent-doc-del:hover { color: var(--danger); }

.smart-guide { position: absolute; background: #e879f9; z-index: 20; pointer-events: none; }
.smart-guide-h { height: 1px; left: 0; right: 0; }
.smart-guide-v { width: 1px; top: 0; bottom: 0; }

#cad-3d-container canvas { width: 100% !important; height: 100% !important; display: block; }

/* ─── Responsive ─── */
@media (max-width: 1100px) {
    .cad-container {
        grid-template-columns: 44px 1fr;
        grid-template-rows: 36px 30px 1fr 36px;
        grid-template-areas:
            "menu menu"
            "tools doctabs"
            "tools canvas"
            "tools context";
    }
    .cad-left, .cad-right { display: none; }
}