:root{--bg: #1e1e1e;--bg-alt: #252526;--fg: #d4d4d4;--accent: #4a9eff;--border: #333}*{box-sizing:border-box}html,body,#app{height:100%;margin:0}body{font-family:system-ui,sans-serif;color:var(--fg);background:var(--bg)}#app{display:grid;grid-template-columns:260px 1fr}#sidebar{background:var(--bg-alt);border-right:1px solid var(--border);overflow-y:auto;padding:8px}#sidebar-actions{display:flex;gap:6px;margin-bottom:8px}#sidebar-actions #open{flex:1}#sidebar button{padding:8px;background:var(--accent);color:#fff;border:0;border-radius:4px;cursor:pointer}#sidebar #new{width:34px;font-size:18px;line-height:1}#sidebar #new-folder{width:34px;font-size:14px;line-height:1}#sidebar button:disabled{opacity:.4;cursor:default}#files{list-style:none;margin:0;padding:0;font-size:13px}#files li{padding:4px 6px;border-radius:4px;cursor:pointer;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}#files li:hover{background:#2a2d2e}#files li.active{background:var(--accent);color:#fff}#editor-pane{display:grid;grid-template-rows:auto 1fr auto;height:100%}#titlebar{display:flex;justify-content:space-between;align-items:center;padding:8px 12px;border-bottom:1px solid var(--border)}#save{background:transparent;color:var(--accent);border:1px solid var(--accent);border-radius:4px;padding:4px 12px;cursor:pointer}#save:disabled{opacity:.4;cursor:default}#editor{height:100%;min-height:0;overflow:hidden}#editor .cm-editor{height:100%}#editor .cm-editor.cm-focused{outline:none}#backlinks{padding:8px 12px;border-top:1px solid var(--border);font-size:12px;color:#999;min-height:20px}.palette-overlay{position:fixed;inset:0;background:#0006;display:flex;justify-content:center;align-items:flex-start;padding-top:12vh;z-index:100}.palette{width:560px;max-width:90vw;background:var(--bg-alt);border:1px solid var(--border);border-radius:8px;box-shadow:0 12px 48px #00000080;overflow:hidden}.palette-input{width:100%;padding:14px 16px;border:0;border-bottom:1px solid var(--border);background:transparent;color:var(--fg);font-size:15px;outline:none}.palette-list{list-style:none;margin:0;padding:6px;max-height:50vh;overflow-y:auto}.palette-item{padding:8px 10px;border-radius:5px;cursor:pointer;display:flex;flex-direction:column;gap:2px}.palette-item.selected{background:var(--accent);color:#fff}.palette-label{font-size:14px}.palette-sub{font-size:12px;opacity:.7}#sidebar{display:flex;flex-direction:column}#files{flex:1}#filter-bar{display:flex;align-items:center;justify-content:space-between;gap:6px;padding:4px 8px;margin-bottom:4px;background:#4a9eff26;border-radius:4px;font-size:13px}#filter-bar button{background:transparent;border:0;color:var(--fg);cursor:pointer;font-size:12px}#tag-section{border-top:1px solid var(--border);margin-top:8px;padding-top:8px;max-height:30%;overflow-y:auto}.section-title{font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:#888;padding:0 6px 4px}#tags{list-style:none;margin:0;padding:0;font-size:13px}#tags li{display:flex;justify-content:space-between;padding:3px 6px;border-radius:4px;cursor:pointer}#tags li:hover{background:#2a2d2e}#tags li.active{background:var(--accent);color:#fff}.tag-count{opacity:.6}#files .tree-folder{display:flex;align-items:center;gap:4px;font-weight:500;color:#cfcfcf}#files .tree-folder .chevron{flex:none;width:10px;font-size:10px;opacity:.7}#files .tree-folder .folder-name{overflow:hidden;text-overflow:ellipsis}#files .tree-file[draggable=true]{cursor:grab}#files .tree-folder.drop-target{background:#4a9eff40;outline:1px solid var(--accent);outline-offset:-1px}#sync-bar{display:flex;align-items:center;gap:8px;margin-bottom:8px;font-size:12px}#sync-bar button{padding:6px 10px;background:var(--accent);color:#fff;border:0;border-radius:4px;cursor:pointer;flex:none}#sync-bar button:disabled{opacity:.5;cursor:default}#sync-bar .sync-connect{width:100%}#sync-bar .sync-status{color:#999;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}#files .tree-folder.selected{background:#4a9eff38}.context-menu{position:fixed;z-index:200;min-width:160px;background:var(--bg-alt);border:1px solid var(--border);border-radius:6px;box-shadow:0 6px 24px #00000073;padding:4px;font-size:13px}.context-menu-item{padding:6px 10px;border-radius:4px;cursor:pointer;white-space:nowrap}.context-menu-item:hover{background:var(--accent);color:#fff}.context-menu-item.disabled{opacity:.4;cursor:default}