*{margin:0;padding:0;box-sizing:border-box}body{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;color:#333;background-color:#f8f9fa}#root{height:100vh}.memo-list{width:300px;height:100%;background-color:#f8f9fa;border-right:1px solid #dee2e6;overflow-y:auto}.memo-list-header{padding:1rem;border-bottom:1px solid #dee2e6;background-color:#fff;display:flex;justify-content:space-between;align-items:center}.memo-list-header h2{margin:0;font-size:1.2rem;color:#333}.create-button{background-color:#007bff;color:#fff;border:none;padding:.5rem 1rem;border-radius:4px;cursor:pointer;font-size:.9rem}.create-button:hover{background-color:#0056b3}.loading{display:flex;justify-content:center;align-items:center;color:#666}.empty-state{padding:2rem;text-align:center;color:#666}.empty-state button{background-color:#28a745;color:#fff;border:none;padding:.75rem 1.5rem;border-radius:4px;cursor:pointer;margin-top:1rem}.memo-items{padding:0}.memo-item{padding:1rem;border-bottom:1px solid #dee2e6;cursor:pointer;background-color:#fff;margin-bottom:1px}.memo-item:hover{background-color:#f1f3f4}.memo-item h3{margin:0 0 .5rem;font-size:1rem;color:#333;font-weight:600}.memo-preview{margin:0 0 .5rem;color:#666;font-size:.9rem;line-height:1.4}.memo-date{font-size:.8rem;color:#999}.memo-editor{flex:1;display:flex;flex-direction:column;height:100%;background-color:#fff}.memo-editor.empty{justify-content:center;align-items:center}.empty-editor{text-align:center;color:#666}.empty-editor h3{margin-bottom:1rem;color:#333}.editor-header{padding:1rem;border-bottom:1px solid #dee2e6;display:flex;justify-content:space-between;align-items:center;gap:1rem}.title-input{flex:1;padding:.75rem;border:1px solid #dee2e6;border-radius:4px;font-size:1.1rem;font-weight:600}.title-input:focus{outline:none;border-color:#007bff;box-shadow:0 0 0 .2rem #007bff40}.editor-actions{display:flex;gap:.5rem}.save-button,.delete-button{padding:.5rem 1rem;border:none;border-radius:4px;cursor:pointer;font-size:.9rem}.save-button{background-color:#28a745;color:#fff}.save-button:disabled{background-color:#6c757d;cursor:not-allowed}.save-button:hover:not(:disabled){background-color:#218838}.delete-button{background-color:#dc3545;color:#fff}.delete-button:hover{background-color:#c82333}.content-textarea{flex:1;padding:1rem;border:none;resize:none;font-family:inherit;font-size:1rem;line-height:1.5}.content-textarea:focus{outline:none}.memo-info{padding:1rem;border-top:1px solid #dee2e6;background-color:#f8f9fa;display:flex;justify-content:space-between;font-size:.8rem;color:#666}.layout{display:flex;flex-direction:column;height:100vh}.app{display:flex;flex:1;overflow:hidden}.notice-banner{color:#b71c1c;background-color:#ffebee;padding:8px 12px;border-bottom:1px solid #ffcdd2;text-align:center;font-size:14px;font-weight:500}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}