:root {
    --background-color: #f5f5f5;
    --header-background: #007bff;
    --text-color: #ffffff;
    --button-positive: #28c545;
    --button-negative: #dc3545;
    --button-warning: #ffc107;
    --button-neutral: #6c757d;
    --item-background: #ffffff;
    --item-border: #dddddd;
    --item-hover-background: #e9ecef;
    --add-section-background: #ffffff;
    --add-section-border: #dddddd;
    --input-field-border: #cccccc;
    --input-field-background: #ffffff;
}

body {
    margin: 0;
    background-color: var(--background-color);
    font-family: Arial, Helvetica, sans-serif;
    height: 100vh;
}

header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0px 50px;
    text-wrap: nowrap;
}


summary p,
header button {
    border: none;
    padding: 5px 10px;
    color: var(--text-color);
    border-radius: 10px;
    cursor: pointer;
}



.p-btn {
    background-color: var(--button-positive);
}

.nu-btn {
    background-color: var(--button-neutral);
}

.n-btn {
    background-color: var(--button-negative);
}

.w-btn {
    background-color: var(--button-warning);
}


.add {
    position: fixed;
    top: 20px;
    right: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: var(--add-section-background);
    width: calc(100vw - 50px);
    height: calc(100vh - 50px);
    border-top-left-radius: 50px;
    border-bottom-left-radius: 50px;
    border: 5px solid var(--add-section-border);
    box-shadow: none;
    transform: translateX(100vw);
}

.add>button {
    position: absolute;
    top: 0;
    left: 0;
    border: none;
    background-color: transparent;
    font-size: 1.5em;
    font-weight: bold;
    margin: 15px;
    border-radius: 10px;
    transition: background-color 0.1s ease;
}

.add>button:hover {
    background-color: var(--add-section-border);
}

form {
    display: flex;
    flex-direction: column;
}

form input {
    border: 1px solid var(--input-field-border);
    background-color: var(--input-field-background);
    outline: none;
    font-size: 1em;
    width: 200px;
    height: 25px;
    margin: 15px 0px;
    border-radius: 5px;
}



form button {
    border: none;
    background-color: var(--button-positive);
    color: var(--text-color);
    font-weight: bold;
    padding: 5px;
    border-radius: 100px;
}


@keyframes slidein {
    from {
        transform: translateX(100vw);
        box-shadow: none;
    }

    to {
        transform: translateX(0vw);
        box-shadow: 0 0 100px #333;
    }
}



.item {
    display: flex;
    justify-content: space-between;
    background-color: var(--item-background);
    border: 2px solid var(--item-border);
    border-radius: 10px;
    padding: 5px 50px;
    margin: 20px 30px;
    transition: background-color 0.2s ease, color 0.5s ease;
}


.done {
    color: var(--input-field-border);
    text-decoration: line-through;
}

@media (max-width: 425px) {
    header h1 {
        font-size: 15px;
    }
}