/* Site-specific customizations layered on top of reset.css + simple.css */

:root {
    --bg: #f2f2ee;
    --accent-bg: #f8f7f2;
    --text: #1f2933;
    --text-light: #52606d;
    --border: #d2d8df;
    --accent: #0b5cad;
    --accent-visited: #5b57a8;
    --accent-hover: #084c8d;
    --site-max-width: 1200px;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
}

a:not([class]) {
    color: var(--accent);
}

a:not([class]):visited {
    color: var(--accent-visited);
}

.site-shell {
    width: min(var(--site-max-width), calc(100% - 1rem));
    margin-inline: auto;
}

.site-header {
    padding-top: 0;

    & .site-shell {
        width: 100%;
        max-width: none;
        margin-inline: 0;
        min-height: 0;
        padding: 1rem;
        border: 1px solid var(--border);
        border-left: 0;
        border-right: 0;
        border-radius: 0;
        background: var(--accent-bg);
        box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
        display: flex;
        flex-direction: row;
        flex-wrap: wrap;
        align-items: center;
        justify-content: space-between;
        gap: 1rem;
        position: relative;
    }
}

.site-title {
    margin: 0;
    font-size: clamp(1.8rem, 8vw, 2.4rem);
    letter-spacing: 0.01em;

    & a,
    & a:visited {
        color: var(--text);
        text-decoration: none;
    }

    & a:hover {
        color: var(--accent);
    }
}

.site-nav-disclosure {
    margin: 0;
    padding: 0;
    border: 0;
    background: transparent;
    width: auto;

    &[open] {
        width: 100%;
    }

    > summary.nav-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        border: 1px solid var(--border);
        border-radius: 999px;
        padding: 0.45rem 0.9rem;
        margin: 0;
        background: transparent;
        color: var(--text);
        font-size: 0.95rem;
        font-weight: 400;
        line-height: 1.2;
        cursor: pointer;
        list-style: none;
        word-break: normal;
        position: absolute;
        top: 1rem;
        right: 1rem;
    }

    > summary.nav-toggle::marker {
        content: "";
    }

    > summary.nav-toggle::-webkit-details-marker {
        display: none;
    }
}

.site-nav {
    border-top: 1px solid #e6eaef;
    padding-top: 0.75rem;
}

.site-nav-list {
    margin: 0;
    padding: 0;
    list-style: none;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.5rem 0.75rem;
}

.site-nav-link {
    display: inline-block;
    color: var(--accent);
    font-weight: 600;
    text-decoration: none;
    padding: 0.4rem 0.2rem;
    border-bottom: 2px solid transparent;

    &:hover {
        color: var(--accent);
        text-decoration: underline;
    }

    &.is-active {
        color: var(--accent);
        border-bottom-color: var(--accent);
    }
}

.site-body {
    padding-top: 1rem;
    padding-bottom: 2rem;

    & .site-shell {
        padding: 1.2rem 1rem 1.5rem;
        border: 1px solid var(--border);
        border-radius: 0.85rem;
        background: var(--accent-bg);
        box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
    }
}

.site-content {
    > :first-child {
        margin-top: 0;
    }

    & h1 {
        font-size: 2.2rem;
    }

    & h2 {
        font-size: 1.9rem;
    }

    & h3 {
        font-size: 1.5rem;
    }

    & :is(h1, h2, h3, h4, h5, h6) > a[href^="#"] {
        color: inherit;
        text-decoration: none;
        position: relative;

        &::before {
            content: "#";
            position: absolute;
            right: 100%;
            margin-right: 0.45rem;
            color: var(--accent);
            opacity: 0;
            transition: opacity 120ms ease-in-out;
        }
    }

    & :is(h1, h2, h3, h4, h5, h6):hover > a[href^="#"],
    & :is(h1, h2, h3, h4, h5, h6) > a[href^="#"]:focus-visible {
        color: var(--accent);
    }

    & :is(h1, h2, h3, h4, h5, h6):hover > a[href^="#"]::before,
    & :is(h1, h2, h3, h4, h5, h6) > a[href^="#"]:focus-visible::before {
        opacity: 1;
    }
}

.site-footer {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid #e6eaef;
    display: flex;
    flex-direction: column;
    row-gap: 0.35rem;
    color: var(--text-light);
    font-size: 0.92rem;

    & p {
        margin: 0;
    }
}

@media (width > 700px) {
    .site-shell {
        width: min(var(--site-max-width), calc(100% - 2rem));
    }

    .site-header {
        padding-top: 1.5rem;

        & .site-shell {
            width: min(var(--site-max-width), calc(100% - 2rem));
            margin-inline: auto;
            min-height: 9rem;
            padding: 1.25rem 1.5rem 0.75rem;
            border-left: 1px solid var(--border);
            border-right: 1px solid var(--border);
            border-radius: 0.85rem 0.85rem 0 0;
            flex-direction: column;
            flex-wrap: nowrap;
            align-items: stretch;
            position: static;
        }
    }

    .site-title {
        font-size: 3rem;
    }

    .site-nav-disclosure {
        > summary.nav-toggle {
            display: none;
        }

        &::details-content {
            content-visibility: visible;
        }
    }

    .site-nav-list {
        display: flex;
        flex-wrap: wrap;
        gap: 0.75rem 1.25rem;
    }

    .site-nav-link {
        padding: 0.2rem 0;
    }

    .site-body {
        padding-top: 0;

        & .site-shell {
            padding: 1.5rem;
            border-top: 0;
            border-radius: 0 0 0.85rem 0.85rem;
        }
    }

    .site-footer {
        display: flex;
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: space-between;
        column-gap: 1rem;
    }
}