*{box-sizing:border-box;margin:0;padding:0}body{color:#d4d4d4;background:#1e1e1e;height:100vh;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;overflow:hidden}#root{height:100vh}.lobby,.admin-page{justify-content:center;align-items:center;height:100vh;display:flex;overflow-y:auto}.admin-layout{width:720px;max-height:90vh;padding:32px;overflow-y:auto}.admin-card{text-align:center;background:#252526;border:1px solid #3c3c3c;border-radius:12px;width:400px;padding:40px}.admin-card h1,.admin-layout h1{color:#fff;margin-bottom:4px;font-size:24px}.admin-card .subtitle{color:#888;margin-bottom:24px;font-size:14px}.admin-card input{color:#d4d4d4;background:#1e1e1e;border:1px solid #3c3c3c;border-radius:6px;outline:none;width:100%;margin-bottom:12px;padding:10px 12px;font-size:14px}.admin-card input:focus{border-color:#007acc}.admin-header{justify-content:space-between;align-items:center;margin-bottom:20px;display:flex}.admin-header-actions{gap:8px;display:flex}.admin-empty{color:#666;text-align:center;padding:32px 0;font-size:14px}.btn{cursor:pointer;white-space:nowrap;border:1px solid #0000;border-radius:6px;justify-content:center;align-items:center;padding:8px 16px;font-size:13px;font-weight:500;line-height:1;transition:background .15s,border-color .15s,color .15s;display:inline-flex}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-sm{padding:5px 10px;font-size:12px}.btn-primary{color:#fff;background:#007acc;border-color:#007acc}.btn-primary:hover:not(:disabled){background:#0098ff;border-color:#0098ff}.btn-ghost{color:#aaa;background:0 0;border-color:#3c3c3c}.btn-ghost:hover:not(:disabled){color:#d4d4d4;background:#2d2d2d}.btn-outline{color:#007acc;background:0 0;border-color:#007acc;text-decoration:none}.btn-outline:hover:not(:disabled){color:#fff;background:#007acc}.btn-danger{color:#888;background:0 0;border-color:#3c3c3c}.btn-danger:hover:not(:disabled){color:#fff;background:#e63946;border-color:#e63946}.room{flex-direction:column;height:100vh;display:flex}.reconnection-banner{color:#fff;text-align:center;background:#e63946;padding:6px 16px;font-size:13px;font-weight:500;animation:2s ease-in-out infinite banner-pulse}@keyframes banner-pulse{0%,to{opacity:1}50%{opacity:.8}}.room-header{background:#252526;border-bottom:1px solid #3c3c3c;align-items:center;gap:16px;padding:8px 16px;font-size:13px;display:flex}.room-id{color:#007acc;font-weight:600}.room-user{color:#aaa}.connection-status{margin-left:auto;font-size:12px}.connection-status.connected{color:#6eeb83}.connection-status.disconnected{color:#ffbc42}.room-body{flex:1;display:flex;overflow:hidden}.sidebar{background:#252526;border-right:1px solid #3c3c3c;width:220px;min-width:220px;overflow-y:auto}.file-tree-header{text-transform:uppercase;letter-spacing:1px;color:#888;border-bottom:1px solid #3c3c3c;justify-content:space-between;align-items:center;padding:8px 12px;font-size:11px;display:flex}.file-tree-actions{gap:4px;display:flex}.tree-action-btn{color:#888;cursor:pointer;background:0 0;border:1px solid #3c3c3c;border-radius:3px;justify-content:center;align-items:center;width:20px;height:20px;font-size:14px;line-height:1;display:flex}.tree-action-btn:hover{color:#d4d4d4;background:#3c3c3c}.tree-node{cursor:pointer;white-space:nowrap;align-items:center;padding:4px 12px;font-size:13px;display:flex;position:relative}.tree-node:hover{background:#2a2d2e}.tree-node .node-name{text-overflow:ellipsis;flex:1;overflow:hidden}.tree-node.file{color:#d4d4d4}.tree-node.folder{color:#ccc;font-weight:500}.folder-chevron{color:#888;margin-right:4px;font-size:10px;transition:transform .15s;display:inline-block}.folder-chevron.expanded{transform:rotate(90deg)}.node-delete,.node-actions{display:none}.tree-node:hover .node-delete,.tree-node:hover .node-actions{gap:2px;display:flex}.node-delete,.node-action-small{color:#666;cursor:pointer;background:0 0;border:none;border-radius:3px;padding:0 4px;font-size:11px;line-height:1}.node-delete:hover,.node-action-small:hover{color:#e63946;background:#3c3c3c}.tree-node.dragging{opacity:.4}.tree-node.folder.drag-over,.file-tree.drag-over{outline-offset:-1px;background:#094771;outline:1px solid #007acc}.rename-input{color:#d4d4d4;background:#1e1e1e;border:1px solid #007acc;border-radius:2px;outline:none;flex:1;min-width:0;padding:1px 4px;font-family:inherit;font-size:13px}.file-tree-error{color:#f48771;background:#e539461f;border:1px solid #e5394666;border-radius:3px;margin:4px 8px;padding:4px 8px;font-size:11px}.modal-overlay{z-index:100;background:#00000080;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal{background:#252526;border:1px solid #3c3c3c;border-radius:8px;width:360px;padding:20px}.modal-title{color:#fff;margin-bottom:12px;font-size:16px;font-weight:600}.modal-path{color:#888;margin-bottom:8px;font-size:12px}.modal-input{color:#d4d4d4;background:#1e1e1e;border:1px solid #3c3c3c;border-radius:4px;outline:none;width:100%;margin-bottom:12px;padding:8px 10px;font-size:14px}.modal-input:focus{border-color:#007acc}.modal-field-label{color:#888;margin-bottom:4px;font-size:11px}.modal-type-toggle{border:1px solid #3c3c3c;border-radius:4px;gap:0;margin-bottom:16px;display:flex;overflow:hidden}.modal-type-toggle button{color:#888;cursor:pointer;background:#1e1e1e;border:none;flex:1;padding:6px 0;font-size:13px}.modal-type-toggle button.active{color:#fff;background:#007acc}.modal-actions{justify-content:flex-end;gap:8px;display:flex}.modal-cancel{color:#d4d4d4;cursor:pointer;background:0 0;border:1px solid #3c3c3c;border-radius:4px;padding:6px 16px;font-size:13px}.modal-cancel:hover{background:#2d2d2d}.modal-create{color:#fff;cursor:pointer;background:#007acc;border:none;border-radius:4px;padding:6px 16px;font-size:13px}.modal-create:disabled{color:#666;cursor:not-allowed;background:#3c3c3c}.main-editor{flex-direction:column;flex:1;display:flex;overflow:hidden}.editor-area{flex-direction:column;height:100%;display:flex}.tab-bar{background:#252526;border-bottom:1px solid #3c3c3c;display:flex;overflow-x:auto}.tab{cursor:pointer;white-space:nowrap;color:#999;border-right:1px solid #3c3c3c;align-items:center;gap:6px;padding:6px 12px;font-size:13px;display:flex}.tab.active{color:#fff;background:#1e1e1e}.tab-close{color:#666;cursor:pointer;background:0 0;border:none;border-radius:3px;padding:0 2px;font-size:12px}.tab-close:hover{color:#fff;background:#3c3c3c}.editor-content{flex:1;min-height:0;position:relative;overflow:hidden}.editor-content .cm-editor{height:auto!important;position:absolute!important;inset:0!important}.editor-empty{color:#666;justify-content:center;align-items:center;height:100%;font-size:14px;display:flex}.loading{color:#888;justify-content:center;align-items:center;height:100vh;display:flex}.user-list{border-top:1px solid #3c3c3c}.user-list-header{text-transform:uppercase;letter-spacing:1px;color:#888;border-bottom:1px solid #3c3c3c;padding:8px 12px;font-size:11px}.user-list-empty{color:#555;padding:8px 12px;font-size:12px}.user-item{align-items:center;gap:8px;padding:4px 12px;font-size:13px;display:flex}.user-dot{border-radius:50%;flex-shrink:0;width:8px;height:8px}.user-name{color:#d4d4d4}.user-file{color:#666;margin-left:auto;font-size:11px}.file-switcher{background:#252526;border:1px solid #3c3c3c;border-radius:8px;flex-direction:column;width:420px;max-height:320px;display:flex;overflow:hidden;box-shadow:0 8px 32px #0006}.file-switcher-input{color:#d4d4d4;background:#252526;border:none;border-bottom:1px solid #3c3c3c;outline:none;width:100%;padding:10px 14px;font-size:14px}.file-switcher-input::placeholder{color:#666}.file-switcher-list{max-height:260px;overflow-y:auto}.file-switcher-item{cursor:pointer;color:#d4d4d4;padding:6px 14px;font-size:13px}.file-switcher-item.selected{color:#fff;background:#04395e}.file-switcher-item:hover{background:#2a2d2e}.file-switcher-item.selected:hover{background:#04395e}.file-switcher-empty{color:#666;padding:12px 14px;font-size:13px}.cm-ySelectionCaret>.cm-ySelectionInfo{opacity:1!important}.cm-ySelection,.cm-yLineSelection{border-radius:2px}.template-section{text-align:left;margin:16px 0 12px}.template-label{color:#888;margin-bottom:8px;font-size:12px}.template-grid{grid-template-columns:1fr 1fr;gap:8px;display:grid}.template-card{cursor:pointer;color:#aaa;background:#1e1e1e;border:1px solid #3c3c3c;border-radius:6px;flex-direction:column;justify-content:center;align-items:center;gap:6px;padding:14px 8px;font-size:13px;display:flex}.template-card.selected{color:#fff;background:#1a2a3a;border-color:#007acc}.template-name{font-size:13px;font-weight:500}.copy-link-btn,.leave-btn,.settings-btn{color:#888;cursor:pointer;background:0 0;border:1px solid #3c3c3c;border-radius:3px;padding:2px 8px;font-size:11px}.copy-link-btn:hover,.settings-btn:hover{color:#d4d4d4;background:#3c3c3c}.leave-btn:hover{color:#e63946;background:#3c3c3c}.settings-panel{z-index:200;background:#252526;border:1px solid #3c3c3c;border-radius:6px;min-width:180px;margin-top:4px;padding:12px 16px;position:absolute;top:100%;right:0;box-shadow:0 4px 16px #0006}.settings-panel-title{color:#fff;margin-bottom:10px;font-size:13px;font-weight:600}.settings-row{justify-content:space-between;align-items:center;gap:12px;display:flex}.settings-label{color:#aaa;font-size:12px}.settings-size-control{align-items:center;gap:6px;display:flex}.settings-size-btn{color:#d4d4d4;cursor:pointer;background:#3c3c3c;border:1px solid #555;border-radius:4px;justify-content:center;align-items:center;width:24px;height:24px;font-size:14px;line-height:1;display:flex}.settings-size-btn:hover:not(:disabled){background:#505050}.settings-size-btn:disabled{opacity:.3;cursor:not-allowed}.settings-size-value{color:#d4d4d4;text-align:center;min-width:32px;font-size:12px}.error-text{color:#e63946;margin-bottom:12px;font-size:13px}.room-list{flex-direction:column;gap:8px;display:flex}.room-list-item{background:#252526;border:1px solid #3c3c3c;border-radius:8px;justify-content:space-between;align-items:center;padding:14px 16px;display:flex}.room-list-info{text-align:left;flex-direction:column;gap:4px;min-width:0;display:flex}.room-list-label{color:#e0e0e0;text-overflow:ellipsis;white-space:nowrap;font-size:14px;font-weight:500;overflow:hidden}.room-list-meta{color:#666;gap:8px;font-size:12px;display:flex}.room-list-template{color:#007acc;background:#1a2a3a;border-radius:3px;padding:1px 8px;font-size:11px}.room-list-actions{flex-shrink:0;align-items:center;gap:8px;display:flex}.create-room-form{background:#252526;border:1px solid #3c3c3c;border-radius:8px;margin-bottom:20px;padding:20px}.form-group{text-align:left;margin-bottom:16px}.form-group label{color:#888;margin-bottom:6px;font-size:12px;display:block}.form-group input{color:#d4d4d4;background:#1e1e1e;border:1px solid #3c3c3c;border-radius:6px;outline:none;width:100%;padding:8px 10px;font-size:14px}.form-group input:focus{border-color:#007acc}.form-actions{gap:8px;margin-top:16px;display:flex}.template-difficulty{color:#666;text-transform:uppercase;font-size:9px}