.app-container{height:100vh;margin-left:60px;margin-right:60px}input::placeholder{font-size:16px}.custom-input::placeholder{font-size:16px}.matrix-container{display:grid;grid-template-columns:repeat(2,1fr);grid-template-rows:repeat(2,1fr);gap:20px}.quadrant{border:2px solid #333;border-radius:10px;padding:20px}.urgentImportant{background-color:gold}.notUrgentImportant{background-color:#98fb98}.urgentNotImportant{background-color:#ffb6c1}.notUrgentNotImportant{background-color:#add8e6}button{margin-top:5px;cursor:pointer;padding:4px 8px;border:none;border-radius:5px;font-weight:700}.add-button{background-color:green;color:#fff;margin-left:4px}.update-button{background-color:#00f;color:#fff;margin-left:4px}.delete-button{background-color:red;color:#fff;margin-left:4px}