*,
*:before,
*:after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;

    font-family: Arial, Helvetica, sans-serif;
}

body {
    min-height: 100vh;
    padding: 32px 16px;
}

h1 {
    font-size: 32px;
    text-align: center;
    margin-bottom: 16px;
}

button {
    cursor: pointer;
}

#main {
    background-color: #f4f4f4;
    min-width: 407px;
    width: max-content;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 16px;
    margin: 0 auto;
    padding: 32px;
    border-radius: 16px;
    border: 2px solid #000;
}

.task-tracker {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.task-form {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 4px 4px 4px 8px;
    border-radius: 8px;
    background-color: white;
    border: 2px solid #000;
}

.task-form__input {
    border: none;
    background-color: transparent;
    font-size: 18px;
    width: 100%;
    height: 34px;
}

.task-form__input:focus {
    outline: none;
}

.task-form__submitBtn {
    border: none;
    background-color: #000;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 6px;
    padding: 4px;

    svg {
        fill: white;
    }
}

.task-tracker__list {
    list-style-type: none;
    margin: 0;
    padding: 0;
}

.task-item {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    max-width: 100%;
}

.task-item__checkbox {
    appearance: none;
    border: 2px solid #000;
    border-radius: 4px;
    width: 24px;
    height: 24px;
}

.task-item__checkbox:checked {
    background-color: lightgray;
}

.task-item__checkbox:checked + .task-item__text {
    text-decoration: line-through;
    color: gray;
}

.task-item__text {
    margin: 0 16px;
}

.task-item__deleteBtn {
    border: none;
    background-color: transparent;
    padding: 4px;
}