*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--bg-primary:#fff;--bg-secondary:#f8f9fa;--bg-hover:#f1f3f4;--text-primary:#202124;--text-secondary:#5f6368;--text-hint:#80868b;--border-color:#e0e0e0;--shadow-sm:0 1px 2px 0 #3c40434d, 0 1px 3px 1px #3c404326;--shadow-md:0 1px 3px 0 #3c40434d, 0 4px 8px 3px #3c404326;--header-height:64px;--sidebar-width:260px;--sidebar-collapsed:72px;--radius:8px;--radius-lg:12px;--transition:.2s ease}html,body,#root{width:100%;height:100%}body{color:var(--text-primary);background:var(--bg-secondary);-webkit-font-smoothing:antialiased;font-family:Google Sans,Segoe UI,Roboto,Arial,sans-serif;font-size:14px;line-height:1.5}input,textarea,button{font-family:inherit;font-size:inherit;color:inherit;background:0 0;border:none;outline:none}button{cursor:pointer;-webkit-user-select:none;user-select:none}input::placeholder,textarea::placeholder{color:#80868b}a{color:inherit;text-decoration:none}.icon-btn{width:36px;height:36px;color:var(--text-secondary);transition:background var(--transition);border-radius:50%;justify-content:center;align-items:center;display:flex}.icon-btn:hover{background:#5f63681a}.icon-btn.active{color:var(--text-primary);background:#5f636826}.close-btn{color:var(--text-secondary);transition:background var(--transition);border-radius:4px;padding:8px 18px;font-size:13px;font-weight:500}.close-btn:hover{background:#5f63681a}.close-btn.small{padding:6px 14px;font-size:12px}.app{background:var(--bg-secondary);flex-direction:column;height:100vh;display:flex}.app-body{flex:1;display:flex;overflow:hidden}.main-content{scrollbar-width:thin;flex-direction:column;flex:1;align-items:center;padding:32px 24px 80px;display:flex;overflow-y:auto}.view-title{width:100%;max-width:640px;color:var(--text-primary);margin-bottom:24px;padding-left:8px;font-size:20px;font-weight:400}.header{height:var(--header-height);background:var(--bg-primary);border-bottom:1px solid var(--border-color);z-index:100;flex-shrink:0;align-items:center;gap:8px;padding:0 16px;display:flex}.header-left{align-items:center;gap:8px;min-width:200px;display:flex}.menu-btn{width:40px;height:40px;color:var(--text-secondary);transition:background var(--transition);border-radius:50%;justify-content:center;align-items:center;display:flex}.menu-btn:hover{background:var(--bg-hover)}.logo{align-items:center;gap:8px;display:flex}.logo-text{color:var(--text-primary);letter-spacing:-.5px;font-size:22px;font-weight:500}.header-center{flex:1;justify-content:center;max-width:720px;margin:0 auto;display:flex}.search-toggle{background:var(--bg-hover);color:var(--text-hint);text-align:left;width:100%;max-width:600px;transition:background var(--transition);border-radius:8px;align-items:center;gap:12px;padding:8px 16px;display:flex}.search-toggle:hover{background:#e8eaed}.search-hint{color:var(--text-hint);font-size:15px}.search-box{width:100%;max-width:600px;transition:all var(--transition);background:#e8eaed;border-radius:8px;align-items:center;gap:12px;padding:8px 16px;display:flex}.search-box.active{background:var(--bg-primary);box-shadow:var(--shadow-sm)}.search-icon{color:var(--text-hint);flex-shrink:0}.search-input{color:var(--text-primary);background:0 0;flex:1;font-size:15px}.clear-search{width:28px;height:28px;color:var(--text-hint);border-radius:50%;justify-content:center;align-items:center;display:flex}.clear-search:hover{background:#5f63681a}.header-right{justify-content:flex-end;align-items:center;gap:4px;min-width:120px;display:flex}.header-icon{width:40px;height:40px}.avatar{width:32px;height:32px;color:var(--text-secondary);cursor:pointer;border-radius:50%;justify-content:center;align-items:center;margin-left:4px;display:flex}.avatar:hover{background:var(--bg-hover)}.sidebar{width:var(--sidebar-width);background:var(--bg-primary);border-right:1px solid var(--border-color);transition:width var(--transition);flex-direction:column;flex-shrink:0;justify-content:space-between;display:flex;overflow:hidden}.sidebar-nav{flex-direction:column;gap:4px;padding:12px 8px;display:flex}.sidebar-item-wrapper{position:relative}.sidebar-item{width:100%;color:var(--text-secondary);transition:all var(--transition);text-align:left;border-radius:0 24px 24px 0;align-items:center;gap:16px;padding:8px 16px;font-size:14px;font-weight:500;display:flex;position:relative}.sidebar-item:hover{background:var(--bg-hover)}.sidebar-item.active{color:var(--text-primary);background:#fef0c3}.sidebar-item.active .sidebar-icon{color:var(--text-primary)}.sidebar-icon{width:24px;height:24px;color:var(--text-secondary);flex-shrink:0;justify-content:center;align-items:center;display:flex}.sidebar-label{white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.sidebar-count{background:var(--bg-hover);color:var(--text-hint);border-radius:12px;margin-left:auto;padding:2px 8px;font-size:12px;font-weight:400}.sidebar-item.active .sidebar-count{background:#00000014}.sidebar-bottom{padding:8px}.clear-trash-btn{width:100%;color:var(--text-secondary);transition:background var(--transition);border-radius:8px;align-items:center;gap:8px;padding:10px 16px;font-size:13px;display:flex}.clear-trash-btn:hover{color:#c5221f;background:#fce8e6}.note-form{width:100%;max-width:600px;margin-bottom:32px}.take-note{background:var(--bg-primary);border-radius:var(--radius);box-shadow:var(--shadow-sm);cursor:text;transition:box-shadow var(--transition);justify-content:space-between;align-items:center;gap:8px;padding:12px 16px;display:flex}.take-note:hover{box-shadow:var(--shadow-md)}.take-note-input{color:var(--text-primary);cursor:text;pointer-events:none;background:0 0;flex:1;font-size:15px}.take-note-icons{gap:4px;display:flex}.expanded-form{background:var(--bg-primary);border-radius:var(--radius);box-shadow:var(--shadow-md);padding:16px;animation:.2s expandIn}@keyframes expandIn{0%{opacity:0;transform:scale(.98)}to{opacity:1;transform:scale(1)}}.expanded-form form{flex-direction:column;gap:8px;display:flex}.note-title-input{color:var(--text-primary);background:0 0;width:100%;padding:4px 0;font-size:16px;font-weight:500}.note-content-input{color:var(--text-primary);resize:none;background:0 0;width:100%;min-height:24px;padding:4px 0;font-size:14px;line-height:1.5}.note-form-actions{justify-content:space-between;align-items:center;padding-top:8px;display:flex;position:relative}.note-form-tools{gap:4px;display:flex;position:relative}.note-section{width:100%;max-width:960px}.section-label{text-transform:uppercase;letter-spacing:.8px;color:var(--text-hint);margin-bottom:16px;padding-left:8px;font-size:11px;font-weight:600}.note-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px;margin-bottom:32px;display:grid}.note-card{background:var(--bg-primary);border:1px solid var(--border-color);border-radius:var(--radius);cursor:pointer;min-height:100px;transition:box-shadow var(--transition), border-color var(--transition);break-inside:avoid;padding:16px;position:relative}.note-card:hover{box-shadow:var(--shadow-sm);border-color:#ccc}.note-card.editing{box-shadow:var(--shadow-md);cursor:auto}.note-card-content{word-wrap:break-word;overflow-wrap:break-word}.note-card-title{color:var(--text-primary);margin-bottom:8px;font-size:15px;font-weight:500;line-height:1.4}.note-card-text{color:var(--text-primary);white-space:pre-wrap;font-size:14px;line-height:1.5}.pin-btn{opacity:0;width:28px;height:28px;transition:opacity var(--transition);color:var(--text-secondary);border-radius:50%;justify-content:center;align-items:center;display:flex;position:absolute;top:6px;right:6px}.note-card:hover .pin-btn{opacity:1}.pin-btn:hover{background:#5f63681a}.note-card-hover-actions{opacity:0;transition:opacity var(--transition);background:inherit;border-radius:4px;gap:2px;padding:2px;display:flex;position:absolute;bottom:4px;left:4px}.note-card:hover .note-card-hover-actions{opacity:1}.note-card-title-input{width:100%;color:var(--text-primary);background:0 0;margin-bottom:8px;padding:4px 0;font-size:15px;font-weight:500;display:block}.note-card-content-input{resize:none;width:100%;color:var(--text-primary);background:0 0;min-height:60px;padding:4px 0;font-size:14px;line-height:1.5;display:block}.note-card-actions{justify-content:space-between;align-items:center;gap:4px;padding-top:8px;display:flex;position:relative}.note-card-tools{gap:2px;display:flex;position:relative}.trashed-note{opacity:.85}.color-picker{background:var(--bg-primary);border-radius:var(--radius);box-shadow:var(--shadow-sm);z-index:50;grid-template-columns:repeat(6,1fr);gap:4px;min-width:200px;margin-bottom:8px;padding:8px;display:grid;position:absolute;bottom:100%;left:0}.color-picker .color-swatch{cursor:pointer;border-radius:50%;width:28px;height:28px;transition:transform .15s,box-shadow .15s}.color-picker .color-swatch:hover{transform:scale(1.2);box-shadow:0 1px 3px #0003}.color-picker .color-swatch.active{outline-offset:2px;outline:2px solid #1a73e8}.empty-state{color:var(--text-hint);flex-direction:column;justify-content:center;align-items:center;gap:16px;padding:80px 24px;display:flex}.empty-state p{font-size:16px;font-weight:400}.main-content::-webkit-scrollbar{width:8px}.main-content::-webkit-scrollbar-thumb{background:#dadce0;border-radius:4px}.main-content::-webkit-scrollbar-track{background:0 0}@media (width<=768px){.header{padding:0 8px}.sidebar{display:none}.main-content{padding:16px}.note-grid{grid-template-columns:1fr}.header-left{min-width:auto}.logo-text{display:none}.search-toggle{padding:8px 10px}}@media (width>=1200px){.note-grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}}