:root{--accent: #4f46e5;--accent-dark: #4338ca;--bg: #f5f5f7;--surface: #ffffff;--border: #e2e2e7;--text: #1a1a1a;--text-muted: #6b6b76;--danger: #dc2626;color-scheme:light}*{box-sizing:border-box}html,body{margin:0;height:100%;overflow:hidden;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;-webkit-tap-highlight-color:transparent}#app{min-height:100%;padding-top:env(safe-area-inset-top);padding-bottom:env(safe-area-inset-bottom);padding-left:env(safe-area-inset-left);padding-right:env(safe-area-inset-right)}button,input,textarea,select{font:inherit;color:inherit}button{cursor:pointer}.center-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.auth-card{width:100%;max-width:380px;background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:32px;box-shadow:0 1px 3px #0000000f}.auth-card h1{margin:0 0 4px;font-size:22px}.auth-card p.subtitle{margin:0 0 24px;color:var(--text-muted);font-size:14px}.field{margin-bottom:14px}.field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:var(--text-muted)}.field input{width:100%;padding:11px 12px;border:1px solid var(--border);border-radius:10px;font-size:16px;background:var(--bg)}.field input:focus{outline:2px solid var(--accent);outline-offset:-1px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:11px 18px;border-radius:10px;border:none;background:var(--accent);color:#fff;font-size:15px;font-weight:600}.btn:hover{background:var(--accent-dark)}.btn:disabled{opacity:.6;cursor:default}.btn.secondary{background:transparent;color:var(--accent);border:1px solid var(--border)}.btn.danger{background:var(--danger)}.btn.block{width:100%;margin-top:6px}.btn-link{background:none;border:none;color:var(--accent);font-size:14px;padding:0;margin-top:16px;text-align:center;width:100%}.error-banner{background:#fef2f2;color:var(--danger);border:1px solid #fecaca;border-radius:10px;padding:10px 12px;font-size:13px;margin-bottom:14px}.offline-banner{background:#fffbeb;color:#92400e;border-bottom:1px solid #fde68a;padding:8px 16px;font-size:13px;text-align:center}.header-user{font-size:13px;color:var(--text-muted)}.notes-list{padding:4px 12px 20px;display:grid;gap:10px;overflow-y:auto;flex:1}.note-row{position:relative;border-radius:14px;overflow:hidden}.note-row-actions{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:stretch;justify-content:flex-end}.note-delete-action{width:84px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;border:none;background:var(--danger);color:#fff;font-size:12px;font-weight:600}@keyframes note-wiggle{0%,to{transform:rotate(-.4deg)}50%{transform:rotate(.4deg)}}.notes-list.mass-edit .note-row,.home-notes-grid.mass-edit .note-row{animation:note-wiggle .34s ease-in-out infinite}.notes-list.mass-edit .note-card,.home-notes-grid.mass-edit .note-card{padding-left:44px;cursor:default}.note-delete-badge{position:absolute;top:10px;left:10px;width:24px;height:24px;border-radius:50%;border:none;background:var(--danger);color:#fff;font-size:18px;line-height:1;padding:0;display:none;align-items:center;justify-content:center}.notes-list.mass-edit .note-delete-badge,.home-notes-grid.mass-edit .note-delete-badge{display:flex}.notes-list.mass-edit .note-hover-delete,.home-notes-grid.mass-edit .note-hover-delete{display:none!important}.note-card{position:relative;display:block;width:100%;text-align:left;background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:16px 18px;cursor:pointer;touch-action:pan-y;transition:transform .2s ease}.note-card:focus-visible{outline:2px solid var(--accent);outline-offset:-1px}.note-card.active{border-color:var(--accent);background:#eef2ff}.note-card .note-title{font-weight:600;font-size:16px;margin-bottom:4px;padding-right:24px}.note-card .note-preview{color:var(--text-muted);font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.note-card .note-meta{color:var(--text-muted);font-size:12px;margin-top:6px}.note-hover-delete{position:absolute;top:12px;right:12px;width:26px;height:26px;border-radius:50%;border:none;background:var(--bg);color:var(--text-muted);font-size:13px;padding:0;display:none}@media (hover: hover) and (pointer: fine){.note-hover-delete{display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .15s,background .15s,color .15s}.note-card:hover .note-hover-delete,.note-card:focus-within .note-hover-delete{opacity:1}.note-hover-delete:hover{background:var(--danger);color:#fff}}.empty-state{text-align:center;padding:60px 20px;color:var(--text-muted)}.editor{padding:24px 16px 80px;min-height:65vh}.editor-canvas-grid{display:grid;align-items:start}.editor-canvas-grid>*{grid-area:1 / 1}.blocks-column{max-width:860px;margin:0 auto;width:100%}.save-status{font-size:12px;color:var(--text-muted);white-space:nowrap;flex:none}.app-shell{display:flex;height:calc(100vh - env(safe-area-inset-top) - env(safe-area-inset-bottom));height:calc(100dvh - env(safe-area-inset-top) - env(safe-area-inset-bottom));overflow:hidden}.sidebar{width:280px;flex:none;display:flex;flex-direction:column;background:var(--surface);border-right:1px solid var(--border);transition:margin-left .2s ease;overflow:hidden}.app-shell.sidebar-collapsed .sidebar{margin-left:-280px}.sidebar-backdrop{display:none}.sidebar-header{padding:14px 12px 10px}.sidebar-header h1{font-size:17px;margin:0;cursor:pointer}.sidebar-new-row{padding:0 12px 12px}.sidebar-new-row .home-new-btn{padding:12px;font-size:14px}.sidebar-user-row{display:flex;align-items:center;justify-content:space-between;padding:0 12px 10px;border-bottom:1px solid var(--border)}.sidebar-logout{margin:0;font-size:13px}.main-pane{flex:1;min-width:0;display:flex;flex-direction:column;overflow:hidden}.top-toolbar{flex:none;display:flex;align-items:center;gap:10px;padding:8px 16px;background:var(--surface);border-bottom:1px solid var(--border)}.sidebar-toggle-btn{flex:none;padding:9px 12px}.toolbar-rows{flex:1;min-width:0;display:flex;flex-direction:column;gap:6px}.top-toolbar-group{display:flex;align-items:center;overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:2px}.top-toolbar-group+.top-toolbar-group{border-top:1px solid var(--border);padding-top:6px}.note-content{flex:1;overflow-y:auto;overflow-x:hidden;overscroll-behavior-y:contain}.note-content .empty-state{padding-top:25vh}.home-view{max-width:960px;margin:0 auto;padding:28px 20px 80px}.home-new-btn{width:100%;display:flex;align-items:center;justify-content:center;gap:10px;padding:18px;border:none;border-radius:14px;background:var(--accent);color:#fff;font-size:16px;font-weight:700}.home-new-btn:hover{background:var(--accent-dark)}.home-section-header{display:flex;align-items:center;justify-content:space-between;margin:28px 2px 12px}.home-section-header h2{font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--text-muted);margin:0}.home-section-header .btn{padding:7px 14px;font-size:13px}.home-notes-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px}@media (max-width: 900px){.sidebar{position:fixed;top:0;bottom:0;left:0;z-index:1300;margin-left:0;transform:translate(0);transition:transform .2s ease;box-shadow:2px 0 20px #00000026}.app-shell.sidebar-collapsed .sidebar{margin-left:0;transform:translate(-100%)}.app-shell:not(.sidebar-collapsed) .sidebar-backdrop{display:block;position:fixed;top:0;right:0;bottom:0;left:0;z-index:1250;background:#00000040}}.title-input{display:block;width:100%;max-width:860px;margin:0 auto 8px;border:none;background:transparent;font-size:26px;font-weight:700;padding:8px 2px}.title-input:focus{outline:none}.blocks{display:flex;flex-direction:column;gap:16px}.text-block{position:relative;background:transparent;border:none;padding:4px 4px 4px 2px}.note-canvas-layer{width:100%;position:relative;z-index:1;pointer-events:auto}.text-tool-bold{font-weight:700}.text-tool-italic{font-style:italic}.text-tool-strike{text-decoration:line-through}.text-style-select{flex:none;width:108px;border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:8px;padding:8px 6px;font-size:13px}.text-block-input{width:100%;font-size:16px;line-height:1.5;min-height:28px;padding:14px 26px 26px;outline:none}.text-block-input:empty:before{content:attr(data-placeholder);color:var(--text-muted)}.text-block-input h2{font-size:21px;font-weight:700;margin:10px 0 4px}.text-block-input h3{font-size:17px;font-weight:700;margin:8px 0 4px}.text-block-input ul{margin:4px 0;padding-left:22px}.todo-item{display:flex;align-items:flex-start;gap:9px;margin:4px 0}.todo-check{flex:none;width:18px;height:18px;margin-top:3px;border:1.5px solid var(--border);border-radius:5px;cursor:pointer;position:relative}.todo-item[data-checked=true] .todo-check{background:var(--accent);border-color:var(--accent)}.todo-item[data-checked=true] .todo-check:after{content:"";position:absolute;left:5px;top:1px;width:4px;height:9px;border:solid white;border-width:0 2px 2px 0;transform:rotate(45deg)}.todo-item[data-checked=true] .todo-text{color:var(--text-muted);text-decoration:line-through}.block-remove{position:absolute;top:4px;right:4px;z-index:2;display:flex;align-items:center;justify-content:center;border:none;background:none;color:var(--text-muted);padding:6px;border-radius:6px;opacity:0;transition:opacity .15s}.text-block:hover .block-remove,.text-block:focus-within .block-remove{opacity:1}.block-remove:hover{background:var(--bg);color:var(--danger)}.drawing-block{background:var(--bg);border:none;border-radius:14px;overflow:hidden;box-shadow:0 1px 4px #0000000d;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}.drawing-block.annotation-overlay{background:transparent;box-shadow:none;border-radius:0}.drawing-block.annotation-overlay .canvas-wrap{background:transparent}.drawing-block.annotation-overlay .canvas-wrap:after{content:none}.side-toolbar-controls{display:flex;flex-direction:row;align-items:center;flex-wrap:nowrap;gap:8px}.tool-btn{flex:none;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;white-space:nowrap;min-width:46px;min-height:46px;border:none;background:transparent;color:inherit;border-radius:9px;padding:6px 8px;transition:background .1s ease}@media (hover: hover) and (pointer: fine){.tool-btn:not(.active):hover{background:var(--bg)}}.icon{display:block}.tool-btn-glyph{font-size:15px;line-height:1}.tool-btn-label{font-size:9px;font-weight:600;line-height:1;color:var(--text-muted);letter-spacing:.01em}.tool-btn.active{background:var(--accent);color:#fff}.tool-btn.active .tool-btn-label{color:#fff}.tool-btn:disabled{opacity:.4}.top-toolbar .tool-btn.danger{color:var(--danger)}.top-toolbar .tool-btn.danger .tool-btn-label{color:inherit}.top-toolbar>.delete-note-btn{margin-left:auto}.color-row{display:flex;flex-wrap:nowrap;gap:6px;padding:2px 0}.color-swatch{flex:none;width:26px;height:26px;border-radius:50%;border:2px solid transparent;padding:0}.color-swatch.active{border-color:var(--text)}.size-control{display:flex;flex-direction:row;align-items:center;gap:6px;padding:4px 0}.size-slider{width:90px;height:28px}.size-value{font-size:13px;color:var(--text-muted);width:1.5em}.canvas-area{width:100%}.offscreen-canvas{position:absolute;left:-99999px;top:-99999px;pointer-events:none}.canvas-wrap{position:relative;width:100%;touch-action:none;background:var(--bg);-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}.canvas-wrap:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;box-shadow:inset 0 0 26px #00000014}.drawing-block.fullscreen{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1400;border-radius:0;border:none;background:var(--bg);display:flex;flex-direction:column;padding-top:env(safe-area-inset-top);padding-bottom:env(safe-area-inset-bottom);padding-left:env(safe-area-inset-left);padding-right:env(safe-area-inset-right)}.drawing-block.fullscreen .canvas-area{flex:1;min-height:0;display:flex;align-items:center;justify-content:center;overflow:hidden}.drawing-block.fullscreen .canvas-wrap{width:auto;height:auto}body.canvas-fullscreen-active,body.canvas-fullscreen-active .note-content{overflow:hidden}.handwriting-canvas{display:block;width:100%;height:100%;touch-action:none;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none;-webkit-user-drag:none}@media (prefers-color-scheme: dark){:root{color-scheme:dark;--bg: #121214;--surface: #1c1c1f;--border: #2e2e33;--text: #f2f2f4;--text-muted: #9a9aa2}.field input{background:#1c1c1f;color:var(--text)}.sidebar,.top-toolbar{background:#17171a}.note-card.active{background:#23233a}}