:root{--color-fixed-header-bg: #392c2a;--color-fixed-header-text: #FCEED9;--color-fixed-header-border: #25505880;--color-fixed-sidebar-bg: #FFAB4E;--color-fixed-sidebar-surface: #7f5e4b;--color-fixed-sidebar-text: #FCEED9;--color-fixed-sidebar-text-active: #392c2a;--color-fixed-sidebar-item-hover: #feefc3c0;--color-fixed-sidebar-item-active: #FFECB3;--color-fixed-icon: #FCEED9;--color-fixed-icon-active: #4D352B;--color-primary: #7f5e4b;--color-primary-light: #8b6b61;--color-secondary: #392c2a;--color-accent: #FFECB3;--color-bg-app: #fff8ee;--color-bg-card: #FFFEF7;--color-bg-modal: #FFFEF7;--color-bg-hover: #f1f3f4;--color-bg-search: white;--color-bg-input: transparent;--color-text-main: #392c2a;--color-text-sub: #5f6368;--color-text-placeholder: #aaa;--color-border: #25505880;--color-border-light: #eee;--color-danger: #FE4B00;--color-overlay: rgba(0, 0, 0, .6);--dimen-header-height: 64px;--dimen-sidebar-width: 240px;--dimen-card-image-height: 150px;--dimen-spacing-xs: 4px;--dimen-spacing-s: 8px;--dimen-spacing-m: 16px;--radius-s: 4px;--radius-m: 8px;--radius-l: 24px;--color-themed-icon: #7f5e4b}[data-theme=dark]{--color-bg-app: #181818;--color-bg-card: #1f1f1f;--color-bg-modal: #1f1f1f;--color-bg-hover: #333333;--color-bg-search: #2d2d2d;--color-text-main: #d0d0d0;--color-text-sub: #aaaaaa;--color-border: #444444;--color-border-light: #333333;--color-themed-icon: #d0d0d0}body{margin:0;padding:0;font-family:Segoe UI,sans-serif;background-color:var(--color-bg-app);color:var(--color-text-main)}.app-container{display:flex;flex-direction:column;height:100vh}.app-header{display:flex;align-items:center;justify-content:space-between;padding:0 var(--dimen-spacing-m);height:var(--dimen-header-height);background-color:var(--color-fixed-header-bg);border-bottom:1px solid var(--color-fixed-header-border);z-index:100}.header-left{display:flex;align-items:center;gap:12px}.header-title{font-size:1.6rem;font-weight:700;color:var(--color-fixed-header-text)}.header-right{display:flex;align-items:center;gap:15px}.icon-btn{background:var(--color-fixed-sidebar-bg);border:none;cursor:pointer;color:var(--color-fixed-icon-active);padding:var(--dimen-spacing-s);width:48px;height:48px;border-radius:50%;display:flex;align-items:center;justify-content:center}.icon-btn:hover{background-color:#ffac4ebb}.user-avatar{width:45px;height:45px;border-radius:50%;cursor:pointer;object-fit:cover;border:none}.login-btn{background-color:var(--color-fixed-sidebar-bg);color:var(--color-fixed-icon-active);border:none;padding:8px 16px;border-radius:var(--radius-s);font-weight:700;cursor:pointer}.main-body{display:flex;flex:1;overflow:hidden;position:relative}.sidebar{background-color:var(--color-fixed-sidebar-surface);display:flex;flex-direction:column;transition:width .3s ease,transform .3s ease;overflow-y:auto;overflow-x:hidden;z-index:900;height:99%}.sidebar.closed{width:0;transform:translate(-100%);overflow:hidden;padding:0;border:none}.sidebar.open{width:var(--dimen-sidebar-width);transform:translate(0);border-right:1px solid var(--color-fixed-header-border)}@media(min-width:768px){.sidebar.open{width:250px}.sidebar.closed{width:72px;transform:none;overflow:visible}.sidebar.closed .menu-label,.sidebar.closed .sidebar-create-btn span,.sidebar.closed .MdExpandMore,.sidebar.closed .MdExpandLess{display:none}.sidebar.closed .menu-item,.sidebar.closed .sidebar-create-btn{justify-content:center;padding:12px 0}.sidebar.closed .menu-icon{margin-right:0}.sidebar.closed .sidebar-create-btn{width:48px;height:48px;border-radius:50%;margin:0 auto}.sidebar.closed .tag-item{padding-left:0!important;justify-content:center}.sidebar.closed .sidebar-create-actions.hide{opacity:1!important;pointer-events:auto!important}}.sidebar-create-actions{padding:12px var(--dimen-spacing-m) var(--dimen-spacing-m) var(--dimen-spacing-m);display:flex;flex-direction:column;gap:12px;opacity:1;transition:opacity .3s}.sidebar-create-actions.hide{opacity:0;pointer-events:none}.sidebar-create-btn{display:flex;align-items:center;gap:12px;width:100%;padding:12px 20px;border-radius:var(--radius-l);border:none;background-color:var(--color-fixed-sidebar-bg);box-shadow:0 1px 3px #0003;cursor:pointer;font-size:1rem;color:var(--color-fixed-icon-active);font-weight:700;transition:all .2s}.sidebar-create-btn:hover{background-color:#ffac4ebb;box-shadow:0 2px 4px #0003}.sidebar-create-btn.checklist{color:var(--color-fixed-icon-active);font-weight:700}.sidebar-menu{flex:1;overflow-y:auto;overflow-x:hidden;display:flex;flex-direction:column}.menu-item{display:flex;align-items:center;padding:10px 16px 10px 24px;cursor:pointer;border-radius:0;margin-right:0;transition:background-color .2s;color:var(--color-fixed-sidebar-text)}.menu-icon{width:24px;margin-right:20px;display:flex;align-items:center;color:var(--color-fixed-icon)}.menu-item:hover{background-color:var(--color-fixed-sidebar-item-hover);color:var(--color-fixed-sidebar-text-active);font-weight:700}.menu-item.active{background-color:var(--color-fixed-sidebar-item-active);color:var(--color-fixed-sidebar-text-active);font-weight:700}.sidebar .menu-item.active .menu-icon,.sidebar .menu-item:hover .menu-icon{color:var(--color-fixed-icon-active)!important}.sidebar .menu-item:hover *:not(.menu-icon)>svg{color:var(--color-secondary)!important;fill:var(--color-secondary)!important}.menu-label{white-space:nowrap;overflow:hidden;opacity:1;transition:opacity .2s;flex:1}.menu-label.hide{opacity:0}.menu-item.tag-item{padding-left:48px}.main-content{flex:1;padding:20px;overflow-y:auto;background-color:var(--color-bg-app)}.content-toolbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;gap:10px}.content-toolbar h2{color:var(--color-text-main)}.search-bar{display:flex;align-items:center;background:var(--color-bg-search);padding:8px 12px;border-radius:var(--radius-m);box-shadow:0 1px 2px #0000001a;flex:1;max-width:600px}.search-bar input{border:none;outline:none;margin-left:8px;width:100%;font-size:1rem;background:transparent;color:var(--color-text-main)}.note-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:var(--dimen-spacing-m);align-items:stretch}.note-card{background:var(--color-bg-card);border-radius:var(--radius-m);border:1px solid var(--color-border);box-shadow:0 1px 2px #0000001a;cursor:default;transition:box-shadow .2s;display:flex;flex-direction:column;overflow:hidden;height:auto;min-height:100px;position:relative}.note-card:hover{box-shadow:0 4px 8px #00000026}.note-card-img{width:100%;height:var(--dimen-card-image-height);object-fit:cover;border-bottom:1px solid var(--color-border-light);cursor:zoom-in;flex-shrink:0}.note-card-content{padding:12px 16px;display:flex;flex-direction:column;height:100%;overflow:hidden}.note-card-content h3{margin:0 0 8px;font-size:1.1rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex-shrink:0;color:var(--color-text-main)}.note-text-preview{font-size:.95rem;color:var(--color-text-main);white-space:pre-wrap;line-height:1.5;flex:1;overflow:hidden;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:12;line-clamp:12;min-height:0}.checklist-preview{display:flex;flex-direction:column;gap:4px;flex:1;overflow:hidden}.note-card-footer{margin-top:auto;padding-top:10px;flex-shrink:0;min-height:24px}.modal-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:var(--color-overlay);z-index:999;display:flex;justify-content:center;align-items:center}.modal-content{background:var(--color-bg-modal);width:100%;max-width:600px;height:85vh;margin:0 20px;padding:20px;border-radius:var(--radius-m);display:flex;flex-direction:column;gap:10px;box-shadow:0 5px 15px #0000004d;border:1px solid var(--color-border);position:relative}.modal-content.resizing{transition:none!important;-webkit-user-select:none;user-select:none}.modal-resize-handle{position:absolute;top:0;height:100%;width:8px;cursor:col-resize;z-index:10;background:transparent;transition:background-color .2s}.modal-resize-handle.left{left:-4px}.modal-resize-handle.right{right:-4px}.modal-resize-handle:hover{background-color:rgba(var(--color-primary-rgb, 100, 149, 237),.3);border-radius:4px}.modal-title-input{border:none;font-size:1.5rem;outline:none;font-weight:700;background:transparent;color:var(--color-text-main);border-bottom:1px solid var(--color-border-light);padding-bottom:10px}.modal-content-input{border:none;font-size:1rem;outline:none;font-family:inherit;background:transparent;color:var(--color-text-main);line-height:1.6;resize:none;flex:1}.modal-footer{display:flex;justify-content:flex-end;gap:10px;margin-top:4px;flex-shrink:0}.save-btn{background-color:var(--color-fixed-sidebar-bg);color:var(--color-fixed-icon-active);padding:8px 20px;border-radius:var(--radius-s);border:none;cursor:pointer;font-weight:700}.modal-images{display:flex;gap:10px;flex-wrap:wrap;margin-top:4px;max-height:64px;min-height:64px;overflow-y:auto;flex-shrink:0}.image-wrapper{position:relative;width:60px;height:60px}.image-wrapper img{width:100%;height:100%;object-fit:cover;cursor:zoom-in;border-radius:var(--radius-s)}.remove-image-btn{position:absolute;top:2px;right:2px;width:20px;height:20px;background-color:var(--color-danger);color:#fff;border:none;border-radius:50%;font-size:14px;display:flex;align-items:center;justify-content:center;z-index:10;cursor:pointer}.transparent-backdrop{position:fixed;top:0;left:0;width:100vw;height:100vh;background:transparent;z-index:1001;cursor:default}.tag-popup-menu{position:absolute;bottom:100%;left:0;background:var(--color-bg-card);border-radius:var(--radius-m);box-shadow:0 4px 12px #0003;width:200px;max-height:300px;overflow-y:auto;z-index:1002;border:1px solid var(--color-border);padding:8px 0}.tag-popup-header{padding:8px 16px;font-weight:700;font-size:.9rem;color:var(--color-text-sub);border-bottom:1px solid var(--color-border-light);margin-bottom:4px}.tag-popup-item{display:flex;align-items:center;padding:8px 16px;cursor:pointer;transition:background-color .2s;color:var(--color-text-main)}.tag-popup-item:hover{background-color:var(--color-bg-hover)}.modal-checklist-area{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:8px;padding:4px}.checklist-row{display:flex;align-items:center;gap:10px;padding:4px 0;border-bottom:1px dashed var(--color-border-light)}.checkbox-unchecked{width:18px;height:18px;border:2px solid var(--color-primary);border-radius:2px}.checklist-input{flex:1;border:none;font-size:1rem;outline:none;background:transparent;color:var(--color-text-main)}.checklist-input.checked{text-decoration:line-through;color:var(--color-text-placeholder)}.add-item-row{display:flex;align-items:center;gap:10px;padding:8px 0;cursor:pointer;color:var(--color-text-sub);font-weight:700}.remove-item-btn{background:none;border:none;color:#aaa;cursor:pointer;display:flex;align-items:center}.remove-item-btn:hover{color:var(--color-danger)}.loading-screen{display:flex;justify-content:center;align-items:center;height:100vh;font-size:1.5rem;color:var(--color-primary);background-color:var(--color-bg-app)}::highlight(search-results){background-color:#ffeb3b;color:#000}.editor-search-bar{display:flex;align-items:center;background:var(--color-bg-search);border:1px solid var(--color-border);border-radius:4px;padding:2px 8px;margin-left:auto;margin-right:12px;height:28px;width:200px}.editor-search-input{border:none;background:transparent;color:var(--color-text-main);outline:none;font-size:.9rem;flex:1;min-width:0}.editor-search-input::placeholder{color:var(--color-text-sub)}.account-popup{position:absolute;top:50px;right:0;width:280px;background-color:var(--color-bg-card);border-radius:var(--radius-m);box-shadow:0 4px 12px #0003;z-index:1002;padding:16px;display:flex;flex-direction:column;gap:15px;border:1px solid var(--color-border)}.popup-header{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--color-border-light);padding-bottom:8px;color:var(--color-text-main)}.close-popup-btn{background:none;border:none;cursor:pointer;color:var(--color-text-sub);padding:4px}.popup-user-info{display:flex;align-items:center;gap:12px}.popup-avatar{width:50px;height:50px;border-radius:50%;object-fit:cover}.popup-text{display:flex;flex-direction:column;overflow:hidden}.popup-name{font-weight:700;font-size:1rem;color:var(--color-text-main)}.popup-email{font-size:.8rem;color:var(--color-text-sub);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.popup-logout-btn{display:flex;align-items:center;justify-content:center;gap:8px;background-color:var(--color-bg-hover);border:none;padding:10px;border-radius:var(--radius-s);cursor:pointer;font-weight:700;color:var(--color-text-main)}.image-preview-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:#000000e6;z-index:2000;display:flex;justify-content:center;align-items:center}.image-preview-overlay img{max-width:90%;max-height:90%;border-radius:4px}.close-preview-btn{position:absolute;top:20px;right:30px;background:none;border:none;color:#fff;font-size:40px;cursor:pointer}.rich-editor-container{display:flex;flex-direction:column;border:1px solid var(--color-border);border-radius:var(--radius-m);background:var(--color-bg-card);overflow:hidden;flex:1;min-height:200px}.editor-toolbar{display:flex;gap:4px;padding:8px;background:var(--color-bg-app);border-bottom:1px solid var(--color-border);flex-wrap:wrap}.toolbar-btn{background:none;border:none;cursor:pointer;padding:4px;border-radius:4px;color:var(--color-text-main);display:flex;align-items:center;justify-content:center}.toolbar-btn:hover{background-color:var(--color-bg-hover)}.editor-content{flex:1;padding:12px;outline:none;overflow-y:auto;font-family:inherit;font-size:1rem;line-height:1.6;white-space:pre-wrap;color:var(--color-text-main)}.editor-content:empty:before{content:attr(data-placeholder);color:var(--color-text-placeholder);pointer-events:none}.color-palette-popup{position:absolute;top:100%;left:0;background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:4px;padding:8px;display:grid;grid-template-columns:repeat(5,1fr);gap:4px;width:150px;z-index:100;box-shadow:0 4px 8px #0003}.color-swatch{width:24px;height:24px;border-radius:50%;cursor:pointer;border:1px solid var(--color-border-light)}.sidebar .menu-item:hover div[title=タグを管理] svg{color:var(--color-secondary)!important}[data-theme=dark] input[type=date]::-webkit-calendar-picker-indicator{filter:invert(1);cursor:pointer}@media(max-width:768px){.width-change-btn-wrapper{display:none!important}}.help-container{display:flex;height:100%;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;color:#333;background-color:#f9f9f9;overflow:hidden}.help-sidebar{width:280px;background-color:#fff;border-right:1px solid #e0e0e0;display:flex;flex-direction:column;flex-shrink:0;height:100%}.help-sidebar-header{padding:20px;border-bottom:1px solid #e0e0e0;background-color:#f5f5f5;display:flex;justify-content:space-between;align-items:center}.help-sidebar-header h2{margin:0;font-size:1.2rem;color:#2c3e50}.help-sidebar-menu{flex:1;overflow-y:auto;padding:10px 0}.help-menu-item{padding:12px 20px;cursor:pointer;display:flex;align-items:center;gap:12px;transition:all .2s ease;font-size:.95rem;color:#555;border-left:4px solid transparent}.help-menu-item:hover{background-color:#f0f7ff;color:#1976d2}.help-menu-item.active{background-color:#e3f2fd;color:#1976d2;border-left-color:#1976d2;font-weight:600}.help-menu-icon{font-size:1.2rem;width:24px;text-align:center}.help-content{flex:1;display:flex;flex-direction:column;background-color:#fff;overflow:hidden;height:100%}.help-content-header{padding:20px 30px;border-bottom:1px solid #e0e0e0;display:flex;align-items:center;gap:15px;background-color:#fff;min-height:70px}.help-mobile-menu-btn{display:none;background:none;border:none;font-size:1.5rem;color:#555;cursor:pointer;padding:5px}.help-content-header h1{margin:0;font-size:1.5rem;color:#2c3e50}.help-content-body{flex:1;overflow-y:auto;padding:30px;line-height:1.7}.help-content-body h3{color:#4a5568;margin-top:25px}.help-content-body p,.help-content-body ul{margin-bottom:16px}.help-content-body li{margin-bottom:8px}.help-warning-box{background-color:#fff8e1;border-left:4px solid #ffc107;padding:15px 20px;margin:20px 0;border-radius:0 4px 4px 0}.help-warning-box strong{color:#d84315}.help-sidebar-overlay{display:none;position:fixed;inset:0;background-color:#00000080;z-index:99}@media(max-width:768px){.help-mobile-menu-btn{display:block}.help-sidebar{position:fixed;top:0;left:-280px;z-index:100;transition:left .3s ease}.help-sidebar.open{left:0}.help-sidebar-overlay.open{display:block}.help-content-header{padding:15px 20px}.help-content-body{padding:20px}}