*,*:before,*:after{box-sizing:border-box}body{margin:0;font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;background-color:#f5f5f5;color:#333;-webkit-font-smoothing:antialiased}.container{max-width:640px;margin:40px auto;padding:0 16px}h1{font-size:1.75rem;margin-bottom:24px}.input-area{display:flex;flex-direction:column;gap:8px;margin-bottom:20px}.memo-input{width:100%;padding:12px;font-size:1rem;font-family:inherit;border:1px solid #ccc;border-radius:8px;resize:vertical;background:#fff;transition:border-color .2s}.memo-input:focus{outline:none;border-color:#4a90e2;box-shadow:0 0 0 3px #4a90e226}.input-bottom{display:flex;align-items:center;justify-content:space-between;gap:8px}.add-button{flex-shrink:0;padding:8px 24px;font-size:1rem;font-family:inherit;background-color:#4a90e2;color:#fff;border:none;border-radius:8px;cursor:pointer;transition:background-color .2s}.add-button:hover:not(:disabled){background-color:#357abd}.add-button:disabled{background-color:#b0c9eb;cursor:not-allowed}.category--仕事{--cat-color: #4a90e2;--cat-bg: #e8f1fb;--cat-bg-active: #4a90e2}.category--個人{--cat-color: #34a853;--cat-bg: #e6f4ea;--cat-bg-active: #34a853}.category--アイデア{--cat-color: #f4a61c;--cat-bg: #fef7e0;--cat-bg-active: #f4a61c}.category-select-group{display:flex;gap:6px}.category-select-button{padding:5px 14px;font-size:.85rem;font-family:inherit;border:1.5px solid var(--cat-color);border-radius:20px;background:#fff;color:var(--cat-color);cursor:pointer;transition:background-color .15s,color .15s}.category-select-button:hover{background:var(--cat-bg)}.category-select-button.active{background:var(--cat-bg-active);color:#fff}.search-area{margin-bottom:12px}.search-wrapper{position:relative}.search-icon{position:absolute;left:10px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:#999;pointer-events:none}.search-input{width:100%;padding:8px 12px 8px 34px;font-size:.95rem;font-family:inherit;border:1.5px solid #ccc;border-radius:8px;background:#fff;transition:border-color .2s}.search-input:focus{outline:none;border-color:#4a90e2;box-shadow:0 0 0 3px #4a90e226}.highlight{background-color:#fff176;color:inherit;border-radius:2px;padding:0 1px}.filter-area{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}.filter-button{display:flex;align-items:center;gap:5px;padding:5px 14px;font-size:.85rem;font-family:inherit;border:1.5px solid #ccc;border-radius:20px;background:#fff;color:#666;cursor:pointer;transition:background-color .15s,color .15s,border-color .15s}.filter-button:hover{border-color:#aaa;background:#f0f0f0}.filter-button.active{background:#333;border-color:#333;color:#fff}.filter-button.category--仕事,.filter-button.category--個人,.filter-button.category--アイデア{border-color:var(--cat-color);color:var(--cat-color)}.filter-button.category--仕事:hover,.filter-button.category--個人:hover,.filter-button.category--アイデア:hover{background:var(--cat-bg)}.filter-button.category--仕事.active,.filter-button.category--個人.active,.filter-button.category--アイデア.active{background:var(--cat-bg-active);border-color:var(--cat-bg-active);color:#fff}.filter-count{display:inline-flex;align-items:center;justify-content:center;min-width:18px;height:18px;padding:0 4px;font-size:.75rem;font-weight:600;background:#0000001a;border-radius:9px}.filter-button.active .filter-count{background:#ffffff40}.memo-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px}.memo-item{background:#fff;border:1px solid #e0e0e0;border-radius:8px;padding:16px}.memo-text{margin:0 0 8px;white-space:pre-wrap;word-break:break-word}.memo-footer{display:flex;align-items:center;justify-content:space-between;gap:8px}.memo-meta{display:flex;align-items:center;gap:8px}.memo-date{font-size:.8rem;color:#888}.category-badge{display:inline-block;padding:2px 10px;font-size:.75rem;font-weight:600;border-radius:12px;background:var(--cat-bg);color:var(--cat-color);flex-shrink:0}.memo-actions{display:flex;gap:6px;flex-shrink:0}.edit-button,.delete-button{padding:4px 12px;font-size:.8rem;font-family:inherit;border:1px solid;border-radius:6px;cursor:pointer;transition:background-color .2s,color .2s}.edit-button{background-color:#fff;color:#4a90e2;border-color:#4a90e2}.edit-button:hover{background-color:#4a90e2;color:#fff}.delete-button{background-color:#fff;color:#e25454;border-color:#e25454}.delete-button:hover{background-color:#e25454;color:#fff}.edit-area{display:flex;flex-direction:column;gap:8px}.edit-category-group{display:flex;gap:6px}.edit-actions{display:flex;gap:6px;justify-content:flex-end}.save-button,.cancel-button{padding:6px 16px;font-size:.9rem;font-family:inherit;border:none;border-radius:6px;cursor:pointer;transition:background-color .2s}.save-button{background-color:#4a90e2;color:#fff}.save-button:hover:not(:disabled){background-color:#357abd}.save-button:disabled{background-color:#b0c9eb;cursor:not-allowed}.cancel-button{background-color:#e0e0e0;color:#333}.cancel-button:hover{background-color:#c8c8c8}.empty-message{text-align:center;color:#aaa;margin-top:48px}