:root {
    --primary-color: #0f9600;
    --primary-color-dark: #0b6e00;
    --text-color: #333;
    --background-color: #ffffff;
    --border-color: #e0e0e0;
    --header-bg: #f8f9fa;
    --sidebar-bg: #fdfdfd;
    --code-bg: #f1f1f1;
    --link-color: var(--primary-color);
    --font-family: "Roboto", sans-serif;
}

body {
    font-family: var(--font-family);
    margin: 0;
    padding: 0;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

.wrapper {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

.site-header {
    background-color: var(--header-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;

    .wrapper {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .site-title {
        font-size: 1.5rem;
        font-weight: 700;
        color: var(--primary-color);
        text-decoration: none;
    }

    .site-nav ul {
        margin: 0;
        padding: 0;
        list-style: none;
        display: flex;
        gap: 1.5rem;
    }

    .site-nav a {
        text-decoration: none;
        color: var(--text-color);
        font-weight: 700;
        transition: color 0.2s ease-in-out;

        &:hover {
            color: var(--primary-color);
        }
    }
}

.main-container {
    display: flex;
    .wrapper {
        display: flex;
        gap: 2rem;
    }
}

.sidebar {
    width: 240px;
    flex-shrink: 0;
    background-color: var(--sidebar-bg);
    padding: 2rem 1.5rem;
    border-right: 1px solid var(--border-color);
    height: calc(100vh - 70px);
    position: sticky;
    top: 70px;
    overflow-y: auto;
}

.sidebar-nav h3 {
    margin-top: 0;
    color: var(--primary-color);
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 0.5rem;
}

.sidebar-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-nav li a {
    display: block;
    padding: 0.5rem 0;
    text-decoration: none;
    color: var(--text-color);
    transition: all 0.2s ease;
    border-radius: 4px;
    padding-left: 10px;

    &:hover {
        background-color: #e9f5e9;
        color: var(--primary-color-dark);
        transform: translateX(5px);
    }
}

.content {
    flex-grow: 1;
    padding: 2rem;

    h1,
    h2,
    h3,
    h4,
    h5,
    h6 {
        color: var(--primary-color-dark);
        font-weight: 700;
    }

    h1 {
        border-bottom: 1px solid var(--border-color);
        padding-bottom: 0.5rem;
        margin-top: 0;
    }

    a {
        color: var(--link-color);
        text-decoration: none;

        &:hover {
            text-decoration: underline;
        }
    }

    code {
        background-color: var(--code-bg);
        padding: 0.2rem 0.4rem;
        border-radius: 4px;
        font-family: monospace;
    }

    pre {
        background-color: var(--code-bg);
        padding: 1rem;
        border-radius: 8px;
        overflow-x: auto;
    }

    table {
        width: 100%;
        border-collapse: collapse;
        margin: 1.5rem 0;
    }

    th,
    td {
        border: 1px solid var(--border-color);
        padding: 0.8rem;
        text-align: left;
    }

    th {
        background-color: var(--header-bg);
    }

    blockquote {
        border-left: 4px solid var(--primary-color);
        padding-left: 1rem;
        margin-left: 0;
        color: #555;
        background-color: #f8f9fa;
    }
}

.site-footer {
    border-top: 1px solid var(--border-color);
    padding: 1.5rem 0;
    text-align: center;
    color: #777;
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .main-container {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        height: auto;
        position: static;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }

    .site-header .wrapper {
        flex-direction: column;
        gap: 1rem;
    }
}

html {
    scroll-behavior: smooth;
}

h2:target,
h3:target,
h4:target {
    border: 2px solid var(--primary-color, green);

    background-color: #f0fff0;

    border-radius: 8px;

    padding: 0.4em 0.6em;

    margin-top: 0.5em;
}