* {
    box-sizing: border-box;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 18px;
    background: #f8f9fa;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    min-height: 100vh;
}

.to-do {
    margin: 50px auto;
    border: 1px solid grey;
    border-radius: 8px;
    max-width: 500px;
    width: 90%;
    text-align: center;
    padding: 20px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
    background: #fff;
    min-height: 350px;
}

.submit,
.reset {
    cursor: pointer;
    font-size: 16px;
    padding: 8px 15px;
    border-radius: 5px;
    border: none;
}

.submit {
    background: #555;
    color: white;
}

.submit:hover {
    background: #333;
}

.reset {
    background: #555;
    color: white;
}

.reset:hover {
    background: #333;
}

.task_input {
    font-size: 16px;
    width: 100%;
    max-width: 400px;
    height: 40px;
    padding: 5px 10px;
    margin-bottom: 10px;
}

.date_input {
    width: 60%;
    max-width: 250px;
    height: 35px;
    padding: 5px;
    margin-bottom: 10px;
}

.task_list {
    margin-top: 20px;
    padding: 0;
}

.task-item {
    background: #f4f4f4;
    border: 1px solid #ccc;
    border-radius: 5px;
    padding: 10px;
    margin-bottom: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.task {
    flex: 1;
    margin: 0;
}

.due {
    font-size: 14px;
    color: #555;
    margin: 0 10px;
}

.delete_btn {
    color: white;
    background: #555;
    border: none;
    border-radius: 5px;
    padding: 5px 10px;
    cursor: pointer;
}

.delete_btn:hover {
    background: #333;
}

.completed {
    text-decoration: line-through;
    color: grey;
}