body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f4f4f9;
    display: flex;
    justify-content: center;
    padding-top: 50px;
}

.container {
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    width: 400px;
}

h1 {
    text-align: center;
    color: #333;
}

.input-area {
    display: flex;
    margin-bottom: 20px;
}

#noteInput {
    flex-grow: 1;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px 0 0 4px;
    outline: none;
}

#addBtn {
    padding: 10px 20px;
    background-color: #28a745;
    color: white;
    border: none;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
}

#addBtn:hover {
    background-color: #218838;
}

ul {
    list-style-type: none;
    padding: 0;
}

li {
    background-color: #f9f9f9;
    margin-bottom: 10px;
    padding: 10px;
    border-radius: 4px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-left: 5px solid #007bff;
}

.delete-btn {
    background-color: #dc3545;
    color: white;
    border: none;
    padding: 5px 10px;
    border-radius: 4px;
    cursor: pointer;
}
.delete-btn:hover {
    background-color: #c82333;
}