:root{--bg: #1b1b1b;--bg-panel: #ffffff;--border: #404040;--border-strong: #808080;--text: #000000;--text-muted: #555555;--accent: #2962ff;--tab-bg: #323232;--tab-bg-active: #3c3c3c;--tab-bg-hover: #3a3a3a;--tab-text: #c8c8c8;--tab-text-active: #ffffff;--header-bg: #f0f0f0;--grid-line: #d0d0d0;--scrollbar-thumb: #b0b0b0;--scrollbar-thumb-hover: #888888;--drop-zone: rgba(41, 98, 255, .18);--drop-zone-border: rgba(41, 98, 255, .85);--stripe-blue: #f5faff;--stripe-brown: #fff8f0;--stripe-green: #f4fbf4;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Helvetica,Arial,sans-serif;font-size:13px;color:var(--text)}*{box-sizing:border-box}html,body{margin:0;padding:0;height:100%;width:100%;overflow:hidden;background:var(--bg)}#root{position:absolute;inset:0}.dock-root{position:absolute;inset:0;overflow:hidden;display:flex;background:var(--bg)}.dock-split{display:flex;min-width:0;min-height:0}.dock-split.horizontal{flex-direction:row}.dock-split.vertical{flex-direction:column}.dock-split-handle{flex:0 0 4px;background:var(--bg);position:relative;z-index:2;user-select:none}.dock-split.horizontal>.dock-split-handle{cursor:col-resize}.dock-split.vertical>.dock-split-handle{cursor:row-resize}.dock-split-handle:hover{background:var(--accent)}.dock-tabs{flex:1 1 auto;display:flex;flex-direction:column;background:var(--bg-panel);border:none;min-width:0;min-height:0}.dock-tabbar{flex:0 0 24px;display:flex;flex-direction:row;align-items:stretch;background:var(--tab-bg);border-bottom:none;overflow:hidden;user-select:none}.dock-tab{display:flex;align-items:center;gap:6px;padding:0 6px 0 14px;font-size:12px;background:var(--tab-bg);border-right:1px solid rgba(255,255,255,.08);color:var(--tab-text);cursor:pointer;white-space:nowrap;transition:background-color 80ms ease}.dock-tab-label{pointer-events:none}.dock-tab-close{display:flex;align-items:center;justify-content:center;width:16px;height:16px;font-size:14px;line-height:1;border-radius:3px;color:#fff6;opacity:0;transition:opacity 80ms ease,background-color 80ms ease}.dock-tab:hover .dock-tab-close{opacity:1}.dock-tab-close:hover{background:#ffffff26;color:#fff}.dock-tab:hover{background:var(--tab-bg-hover)}.dock-tab.active{background:var(--tab-bg-active);color:var(--tab-text-active);font-weight:500}.dock-content{flex:1 1 auto;position:relative;min-height:0;min-width:0}.dock-content>.grid-host{position:absolute;inset:0;display:none}.dock-content>.grid-host.active{display:block}.theme-blue{background:var(--stripe-blue)}.theme-brown{background:var(--stripe-brown)}.theme-green{background:var(--stripe-green)}.drag-overlay{position:fixed;inset:0;z-index:100;pointer-events:none}.drop-preview{position:absolute;background:var(--drop-zone);border:2px solid var(--drop-zone-border);border-radius:2px;transition:left 80ms ease,top 80ms ease,width 80ms ease,height 80ms ease}.drag-ghost{position:fixed;pointer-events:none;z-index:101;background:var(--tab-bg-active);border:1px solid rgba(255,255,255,.2);color:var(--tab-text-active);padding:4px 10px;font-size:12px;box-shadow:0 2px 6px #0006;opacity:.9}.loading{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:var(--text-muted);font-size:12px}