* {
    margin: 0;
    padding: 0;
    font-family: Arial, Helvetica, sans-serif;
}

:root {
    --primary-color: #a53700;
    --white: #fff;
    --black: #000;
}

[data-theme="dark"] {
    --primary-color: #6f2500;
    --white: #fff;
    --black: #000;
}

body {
    background-color: var(--white);
    transition: .5s;
}

.logo img {
    width: 50px;
    outline: none;
}

header {
    width: 100%;
    justify-content: space-between;
    padding: 1em 2em;
    background-color: var(--primary-color);
    transition: background-color .2s;
    position: sticky;
    top: 0;
    z-index: 9999;
    box-shadow: 0 0 5px #000;
}

header,
.logo,
.navigation-header ul {
    display: flex;
    gap: 2em;
    align-items: center;
}

header svg,
.navigation-header ul svg {
    display: none;
}

.logo p {
    color: #fff;
    font-size: 2em;
}

.navigation-header ul {
    list-style-type: none;
    margin: 0;
}

.navigation-header ul a {
    text-decoration: none;
    color: #fff;
    position: relative;
    font-size: 1.2em;
}

.navigation-header ul a::after {
    content: "";
    position: absolute;
    background-color: #fff;
    height: 4px;
    width: 0;
    top: 1.2em;
    left: 0;
    transition: .2s;
}

.navigation-header ul a:hover::after {
    width: 40px;
}

.active {
    font-weight: bold;
}

header button {
    border: none;
    outline: none;
    background-color: var(--white);
    border-radius: 50%;
    padding: .5em;
}

header button svg {
    display: inline;
    width: 24px;
    height: 24px;
    color: var(--black);
}

::-webkit-scrollbar {
    width: 12px;
    background-color: #c8c8c8;
    border: 5px solid var(--white);
}

::-webkit-scrollbar-thumb {
    background-color: var(--primary-color);
    border-radius: 50px;
    border: 2px solid var(--white);
}

@media screen and (max-width: 970px) {
    .navigation-header ul {
        flex-direction: column;
        position: absolute;
        top: 0;
        left: 0;
        background-color: var(--primary-color);
        padding: 2em;
        height: 100vh;
        display: none;
        align-items: flex-start;
    }

    header {
        justify-content: space-between;
        height: 60px;
    }

    header svg {
        display: inline;
        cursor: pointer;
    }

    header p,
    header img {
        display: none;
    }

    .navigation-header ul svg {
        display: block;
        cursor: pointer;
    }
}