:root{--color-bg: #f5f5f7;--color-surface: #ffffff;--color-border: rgba(0, 0, 0, .08);--color-border-strong: rgba(0, 0, 0, .13);--color-text: #1d1d1f;--color-text-secondary: #6e6e73;--color-text-tertiary: #a1a1a6;--color-accent: #0071e3;--color-accent-soft: #e8f0fe;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 18px;--shadow-xs: 0 1px 2px rgba(0, 0, 0, .04);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .06), 0 1px 2px rgba(0, 0, 0, .04);--shadow-md: 0 6px 16px rgba(0, 0, 0, .1), 0 2px 4px rgba(0, 0, 0, .05);--shadow-lg: 0 16px 40px rgba(0, 0, 0, .16), 0 4px 10px rgba(0, 0, 0, .06);--ease: cubic-bezier(.4, 0, .2, 1);--t-fast: .12s var(--ease);--t-base: .2s var(--ease)}*{box-sizing:border-box}html,body,#root{height:100%;margin:0;font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,Segoe UI,Roboto,sans-serif;color:var(--color-text);-webkit-font-smoothing:antialiased}button{font-family:inherit}@keyframes fadeSlideIn{0%{opacity:0;transform:translateY(6px) scale(.98)}to{opacity:1;transform:none}}@keyframes popIn{0%{opacity:0;transform:translateY(-6px) scale(.97)}to{opacity:1;transform:none}}.app-layout{display:flex;flex-direction:column;height:100vh;width:100vw;background:var(--color-bg)}.app-body{flex:1;display:flex;min-height:0}.app-main{flex:1;position:relative;min-width:0}.top-bar{position:relative;flex-shrink:0;display:flex;align-items:center;gap:12px;height:52px;padding:0 16px;background:#ffffffd9;backdrop-filter:saturate(180%) blur(14px);-webkit-backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--color-border);z-index:400}.top-bar-tree-toggle{border:1px solid var(--color-border);background:var(--color-surface);border-radius:var(--radius-sm);width:30px;height:30px;cursor:pointer;font-size:14px;flex-shrink:0;transition:background var(--t-fast),transform var(--t-fast),box-shadow var(--t-fast)}.top-bar-tree-toggle:hover{background:#f0f0f2;box-shadow:var(--shadow-xs)}.top-bar-tree-toggle:active{transform:scale(.94)}.top-bar-center{flex:1;min-width:0;display:flex;align-items:center;justify-content:center;gap:2px}.top-bar-right{display:flex;align-items:center;gap:8px;flex-shrink:0}.breadcrumb{display:flex;align-items:center;font-size:14.5px;overflow:hidden;white-space:nowrap;flex-shrink:1}.breadcrumb-segment{display:inline-flex;align-items:center}.breadcrumb-item{border:none;background:transparent;cursor:pointer;font-size:14.5px;color:var(--color-text-secondary);padding:5px 3px;border-radius:6px;transition:color var(--t-fast),background var(--t-fast)}.breadcrumb-item:hover{color:var(--color-text);background:#0000000a}.breadcrumb-sep{color:var(--color-text-tertiary);margin:0 4px}.breadcrumb-current-input{font-weight:600;font-size:14.5px;letter-spacing:-.01em;color:var(--color-text);text-align:center;border:none;background:transparent;border-radius:6px;padding:5px 8px;min-width:20px;max-width:50vw;transition:background var(--t-fast)}.breadcrumb-current-measure{position:absolute;visibility:hidden;height:0;overflow:hidden;white-space:pre;font-weight:600;font-size:14.5px;letter-spacing:-.01em;padding:5px 8px}.breadcrumb-current-input:hover{background:#0000000a}.breadcrumb-current-input:focus{outline:none;background:#0000000f}.tree-popover{position:absolute;top:58px;left:12px;width:280px;max-height:70vh;background:#fffffff5;backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);overflow:hidden;animation:popIn var(--t-base);transform-origin:top left}.tree-popover .sidebar{height:auto;max-height:70vh;width:100%;border-right:none;background:transparent}.sidebar{width:260px;flex-shrink:0;background:var(--color-bg);display:flex;flex-direction:column;height:100%;overflow-y:auto}.sidebar-header{display:flex;align-items:center;justify-content:space-between;padding:14px;font-weight:600;font-size:14px;letter-spacing:-.01em;border-bottom:1px solid var(--color-border)}.sidebar-header button{font-size:12px;padding:5px 10px;border-radius:999px;border:1px solid var(--color-border-strong);background:var(--color-surface);cursor:pointer;transition:background var(--t-fast),transform var(--t-fast)}.sidebar-header button:hover{background:#f0f0f2}.sidebar-header button:active{transform:scale(.95)}.sidebar-tree{padding:6px 0}.sidebar-item{display:flex;align-items:center;justify-content:space-between;padding:7px 12px;font-size:13.5px;cursor:pointer;border-radius:8px;margin:1px 6px;transition:background var(--t-fast)}.sidebar-item:hover{background:#0000000b}.sidebar-item.active{background:var(--color-accent-soft);font-weight:600;color:var(--color-accent)}.sidebar-item-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}.sidebar-item-actions{display:none;gap:2px}.sidebar-item:hover .sidebar-item-actions{display:flex}.sidebar-item-actions button{border:none;background:transparent;cursor:pointer;font-size:12px;padding:2px 5px;border-radius:5px;transition:background var(--t-fast)}.sidebar-item-actions button:hover{background:#00000014}.left-toolbar{flex-shrink:0;width:80px;background:var(--color-bg);border-right:1px solid var(--color-border);display:flex;flex-direction:column;align-items:stretch;padding:14px 8px;gap:6px;overflow-y:auto}.left-toolbar-item{display:flex;flex-direction:column;align-items:center;gap:6px;border:none;background:transparent;border-radius:var(--radius-sm);padding:6px 4px;cursor:pointer}.left-toolbar-item:active .lt-icon-box{transform:scale(.94)}.left-toolbar-item .lt-icon-box{width:44px;height:44px;display:flex;align-items:center;justify-content:center;border-radius:13px;background:var(--color-surface);border:1px solid var(--color-border);color:var(--color-text-secondary);box-shadow:var(--shadow-xs);transition:transform var(--t-fast),box-shadow var(--t-fast),border-color var(--t-fast)}.left-toolbar-item:hover .lt-icon-box{transform:translateY(-1px);box-shadow:var(--shadow-sm);border-color:var(--color-accent);color:var(--color-accent)}.left-toolbar-item .lt-icon-box-accent{background:linear-gradient(135deg,#7c8cf5,#a06bf0);border:none;color:#fff}.left-toolbar-item:hover .lt-icon-box-accent{color:#fff;border-color:transparent}.left-toolbar-item .lt-label{font-size:11px;color:var(--color-text-secondary)}.canvas-viewport{position:absolute;top:0;right:0;bottom:0;left:0;overflow:hidden;background-color:#f5f5f7;cursor:grab;touch-action:none}.canvas-viewport:active{cursor:grabbing}.canvas-dots{position:absolute;top:0;right:0;bottom:0;left:0;background-image:radial-gradient(circle,#dcdce0 1.4px,transparent 1.4px);pointer-events:none}.canvas-world{position:absolute;top:0;left:0;width:0;height:0;transform-origin:0 0}.canvas-card{position:absolute;top:0;left:0;background:var(--color-surface);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);touch-action:none;cursor:grab;transition:box-shadow var(--t-base),transform var(--t-base)}.canvas-card:hover:not(.dragging){box-shadow:var(--shadow-md);transform:translateY(-1px)}.canvas-card.dragging{cursor:grabbing;opacity:.92;box-shadow:var(--shadow-lg);z-index:50;transition:none}.canvas-card.selected{outline:2px solid var(--color-accent);outline-offset:2px;transition:outline-offset var(--t-fast)}.canvas-card:has(.board-card-item){background:transparent;box-shadow:none}.canvas-card:has(.board-card-item):hover{box-shadow:none}.canvas-card.drop-over{outline:2px dashed var(--color-accent);outline-offset:3px}.column-item{width:100%;height:100%;display:flex;flex-direction:column;cursor:grab}.column-item-header{flex-shrink:0;padding:12px 14px 10px;border-bottom:1px solid var(--color-border)}.column-item-header-row{display:flex;align-items:center;gap:4px}.column-item-name{display:block;flex:1;min-width:0;border:none;outline:none;background:transparent;font-weight:700;font-size:15px;letter-spacing:-.01em;color:var(--color-text);border-radius:6px;padding:2px 4px;margin:0 -4px;transition:background var(--t-fast)}.column-item-name:focus{background:var(--color-accent-soft)}.column-layout-toggle{flex-shrink:0;width:26px;height:26px;display:flex;align-items:center;justify-content:center;border:none;background:transparent;color:var(--color-text-tertiary);border-radius:6px;cursor:pointer;transition:background var(--t-fast),color var(--t-fast)}.column-layout-toggle:hover{background:var(--color-accent-soft);color:var(--color-accent)}.column-item-count{font-size:12px;color:var(--color-text-tertiary);padding:2px 4px}.column-item-row{flex:1;display:flex;align-items:flex-start;gap:12px;padding:14px;overflow:visible;transition:transform .38s cubic-bezier(.33,1.05,.36,1)}.column-tile{position:relative;flex-shrink:0;width:92px;display:flex;flex-direction:column;align-items:center;gap:6px;padding:6px;border-radius:var(--radius-sm);cursor:grab;transition:background var(--t-fast)}.column-tile:hover{background:var(--color-bg)}.column-tile.is-dragging{opacity:.4}.column-tile-icon{width:56px;height:56px;border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:26px}.column-tile-title{width:100%;font-size:12px;font-weight:600;color:var(--color-text);text-align:center;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.column-tile-remove{position:absolute;top:0;right:0;width:18px;height:18px;border:none;background:#0006;color:#fff;font-size:13px;line-height:1;border-radius:50%;cursor:pointer;opacity:0;transition:opacity var(--t-fast),background var(--t-fast)}.column-tile:hover .column-tile-remove{opacity:1}.column-tile-remove:hover{background:#d0342c}.canvas-card-content{width:100%;height:100%;overflow:hidden;border-radius:inherit;animation:fadeSlideIn var(--t-base)}.canvas-card:has(.column-item) .canvas-card-content{overflow:visible}.canvas-card-resize-handle{position:absolute;right:-5px;bottom:-5px;width:14px;height:14px;border-radius:50%;background:var(--color-surface);border:2px solid var(--color-accent);cursor:nwse-resize;touch-action:none;z-index:20;opacity:0;pointer-events:none;transition:opacity var(--t-fast),transform var(--t-fast)}.canvas-card:hover .canvas-card-resize-handle,.canvas-card.selected .canvas-card-resize-handle{pointer-events:auto}.canvas-card:hover .canvas-card-resize-handle,.canvas-card.selected .canvas-card-resize-handle{opacity:1}.canvas-card-resize-handle:hover{transform:scale(1.2)}.note-item-wrapper{width:100%;height:100%}.note-item{width:100%;height:100%;border:none;outline:none;resize:none;overflow-y:auto;background:#fff4c2;border-radius:var(--radius-md);padding:12px;font-size:14px;line-height:1.45;font-family:inherit;cursor:grab}.note-item[contenteditable=true]{cursor:text}.note-item:empty:before{content:attr(data-placeholder);color:#00000059;pointer-events:none}.format-panel{flex-shrink:0;width:80px;background:var(--color-bg);border-right:1px solid var(--color-border);display:flex;flex-direction:column;align-items:stretch;padding:14px 8px;gap:8px;overflow-y:auto;animation:popIn var(--t-fast)}.format-panel-back{align-self:flex-start;border:1px solid var(--color-border);background:var(--color-surface);border-radius:var(--radius-sm);width:30px;height:30px;cursor:pointer;font-size:14px;color:var(--color-text-secondary);transition:background var(--t-fast),transform var(--t-fast)}.format-panel-back:hover{background:#f0f0f2}.format-panel-back:active{transform:scale(.94)}.format-panel-label{font-size:10.5px;color:var(--color-text-tertiary);text-transform:uppercase;letter-spacing:.02em;margin-top:2px}.format-panel-row{display:flex;flex-wrap:wrap;gap:6px}.format-panel-btn{border:1px solid var(--color-border);background:var(--color-surface);color:var(--color-text);cursor:pointer;font-size:13px;width:28px;height:28px;border-radius:8px;display:flex;align-items:center;justify-content:center;transition:background var(--t-fast),transform var(--t-fast)}.format-panel-btn:hover{background:#f0f0f2}.format-panel-btn:active{transform:scale(.9)}.format-panel-color{font-weight:700}.format-panel-swatch{border-radius:50%;padding:0}.checklist-item-shape{width:100%;height:100%;background:#fffaeb;border:1px solid rgba(200,170,60,.25);border-radius:var(--radius-md);padding:12px;display:flex;flex-direction:column;overflow:auto;font-size:13px}.checklist-item-list{flex:1;overflow:auto}.checklist-item-row{display:flex;align-items:center;gap:6px;margin-bottom:5px}.checklist-item-text{flex:1;border:none;background:transparent;font-size:13px;outline:none}.checklist-item-remove{border:none;background:transparent;cursor:pointer;color:#b3a684;font-size:14px;padding:0 4px;border-radius:4px;transition:background var(--t-fast),color var(--t-fast)}.checklist-item-remove:hover{background:#0000000f;color:#7a6f2f}.checklist-item-add{margin-top:4px;align-self:flex-start;border:none;background:transparent;color:#a3892f;cursor:pointer;font-size:12px;font-weight:500;padding:3px 6px;border-radius:6px;transition:background var(--t-fast)}.checklist-item-add:hover{background:#a3892f1a}.board-card-item{width:100%;height:100%;display:flex;flex-direction:column;align-items:center;text-align:center;gap:6px;padding:4px;-webkit-user-select:none;user-select:none}.board-card-item-icon-box{width:68%;aspect-ratio:1;background:linear-gradient(135deg,#dce8ff,#ece2ff);border-radius:26%;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:transform var(--t-base);container-type:size}.canvas-card:hover .board-card-item-icon-box{transform:scale(1.03)}.board-card-item-icon{font-size:37cqw}.board-card-item-name{width:100%;border:none;outline:none;background:transparent;font-weight:600;font-size:12px;letter-spacing:-.01em;text-align:center;color:var(--color-text);border-radius:6px;padding:1px 2px;transition:background var(--t-fast);cursor:default}.board-card-item-name:focus{background:var(--color-accent-soft);cursor:text}.board-card-item-count{font-size:10px;color:var(--color-text-tertiary)}.board-card-item-open{font-size:10px;border:none;background:transparent;color:var(--color-accent);cursor:pointer;font-weight:600;padding:2px 6px;border-radius:6px;transition:background var(--t-fast)}.board-card-item-open:hover{background:var(--color-accent-soft)}.table-item{position:relative;width:100%;height:100%;background:var(--color-surface);overflow:hidden}.table-item-ghost{position:absolute;top:0;left:0;background-color:var(--color-surface);background-image:linear-gradient(to right,var(--color-border-strong) 1px,transparent 1px),linear-gradient(to bottom,var(--color-border-strong) 1px,transparent 1px);background-position:-1px -1px;pointer-events:none;z-index:0}.table-item-rows{position:relative;z-index:1;display:flex;flex-direction:column;width:max-content}.table-item-row{display:flex;border-bottom:1px solid var(--color-border-strong)}.table-item-row:last-child{border-bottom:none}.table-item-row.is-header{background:#d6d6db;font-weight:600}.table-item-cell{height:100%;min-width:0;display:block;border:none;border-right:1px solid var(--color-border-strong);outline:none;background:transparent;padding:8px 10px;font-size:13px;line-height:1.35;font-family:inherit;color:var(--color-text);box-sizing:border-box;overflow:hidden;overflow-wrap:anywhere;white-space:pre-wrap;cursor:grab;-webkit-user-select:none;user-select:none}.table-item-cell.is-selected{background:#0071e31f;outline:1px solid rgba(0,113,227,.45);outline-offset:-1px}.table-item-cell-input{display:block;min-width:0;overflow-y:auto;overflow-wrap:anywhere;white-space:pre-wrap;cursor:text;-webkit-user-select:text;user-select:text}.table-item-cell:last-child{border-right:none}.table-item-col-resize{position:absolute;top:0;width:6px;cursor:col-resize;z-index:5;touch-action:none}.table-item-col-resize:hover{background:#0071e340}.audio-item-empty{width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;cursor:pointer;background:#eef2ff;color:var(--color-text-secondary);transition:background var(--t-fast)}.audio-item-empty:hover{background:#e3e9ff}.audio-item-empty-drag-over{background:#d7e0ff;outline:2px dashed var(--color-accent);outline-offset:-4px}.audio-item-empty .audio-item-icon{font-size:26px}.audio-item-empty .audio-item-label{font-size:12px;text-align:center;padding:0 8px}.audio-item{position:relative;width:100%;height:100%;display:flex;flex-direction:column;justify-content:center;gap:8px;padding:10px 12px;background:#eef2ff}.audio-item-drag-overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:#eef2ffeb;outline:2px dashed var(--color-accent);outline-offset:-4px;font-size:12.5px;font-weight:600;color:var(--color-accent);pointer-events:none}.audio-item-header{display:flex;align-items:center;gap:6px;min-width:0}.audio-item-icon{font-size:16px;flex-shrink:0}.audio-item-filename{flex:1;min-width:0;border:none;outline:none;background:transparent;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:12.5px;font-weight:600;font-family:inherit;color:var(--color-text);border-radius:6px;padding:1px 3px;transition:background var(--t-fast)}.audio-item-filename:focus{background:#ffffffb3}.audio-item-replace{flex-shrink:0;border:none;background:transparent;color:var(--color-accent);cursor:pointer;font-size:11px;font-weight:600;padding:2px 6px;border-radius:6px;transition:background var(--t-fast)}.audio-item-replace:hover{background:var(--color-accent-soft)}.audio-item-player{width:100%;height:32px}.marquee-box{position:absolute;border:1.5px solid var(--color-accent);background:#0071e314;border-radius:4px;pointer-events:none;z-index:200}.login-screen{height:100%;display:flex;align-items:center;justify-content:center;background:var(--color-bg)}.login-card{display:flex;flex-direction:column;gap:12px;width:280px;padding:28px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-md)}.login-card h1{margin:0 0 4px;font-size:18px;font-weight:600;color:var(--color-text)}.login-card input{padding:10px 12px;border:1px solid var(--color-border-strong);border-radius:var(--radius-sm);font-size:14px;outline:none;transition:border-color var(--t-fast)}.login-card input:focus{border-color:var(--color-accent)}.login-card button{margin-top:4px;padding:10px 12px;border:none;border-radius:var(--radius-sm);background:var(--color-accent);color:#fff;font-size:14px;font-weight:600;cursor:pointer;transition:opacity var(--t-fast)}.login-card button:disabled{opacity:.5;cursor:default}.login-error{color:#d70015;font-size:13px}.app-loading{height:100%;display:flex;align-items:center;justify-content:center;color:var(--color-text-secondary);font-size:14px}.admin-popover{position:absolute;top:58px;right:12px;width:320px;max-height:70vh;overflow-y:auto;background:#fffffff5;backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);animation:popIn var(--t-base);transform-origin:top right;padding:14px;display:flex;flex-direction:column;gap:16px}.admin-popover-section{display:flex;flex-direction:column;gap:8px}.admin-popover-section+.admin-popover-section{border-top:1px solid var(--color-border);padding-top:14px}.admin-popover-label{font-size:12px;font-weight:600;color:var(--color-text-secondary)}.admin-popover-row{display:flex;gap:6px}.admin-popover-row select{flex:1;padding:6px 8px;border-radius:var(--radius-sm);border:1px solid var(--color-border-strong);font-size:13px}.admin-popover-row button,.admin-popover-link button,.admin-popover-fullwidth{border:1px solid var(--color-border-strong);background:var(--color-surface);border-radius:var(--radius-sm);padding:6px 10px;font-size:12.5px;cursor:pointer;transition:background var(--t-fast),transform var(--t-fast),border-color var(--t-fast),color var(--t-fast);white-space:nowrap}.admin-popover-row button:hover,.admin-popover-link button:hover,.admin-popover-fullwidth:hover{background:#f0f0f2}.admin-popover-row button:active,.admin-popover-link button:active,.admin-popover-fullwidth:active{transform:scale(.94)}@keyframes copyPop{0%{transform:scale(1)}35%{transform:scale(1.12)}to{transform:scale(1)}}.admin-popover-copy-btn.copied{background:var(--color-accent-soft);border-color:var(--color-accent);color:var(--color-accent);animation:copyPop .28s var(--ease)}.admin-popover-fullwidth{width:100%;text-align:center}.admin-popover-fullwidth:disabled{opacity:.5;cursor:default}.admin-popover-empty{font-size:12px;color:var(--color-text-tertiary)}.admin-popover-link{display:flex;align-items:center;gap:6px;font-size:12.5px}.admin-popover-link.revoked{opacity:.5}.admin-popover-link-token{flex:1;font-family:ui-monospace,monospace;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.admin-popover-link-status{color:var(--color-text-tertiary)}.viewer-badge{display:flex;align-items:center;gap:4px;font-size:12px;color:var(--color-text-secondary);padding:4px 10px;border-radius:999px;background:#34c7591a;white-space:nowrap}