/* Site-wide layout: a fixed sidebar on wide screens, a link row on narrow ones.
   Loaded on every page after researcher.css. */
body {
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
    font-size: 16px;
    line-height: 1.65;
    color: #1f2328;
    background: #ffffff;
    margin: 0;
}

a {
    color: #1c5cab;
}

/* ---------- sidebar ---------- */
.site-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 11rem;
    height: 100vh;
    box-sizing: border-box;
    padding: 2rem 1.25rem;
    display: flex;
    flex-direction: column;
    gap: .3rem;
    border-right: 1px solid #ecebe6;
    overflow-y: auto;
}

.site-nav a {
    color: #52514e;
    text-decoration: none;
    font-size: .95rem;
}

.site-nav .nav-group a {
    display: block;
    padding: .2rem .5rem;
    margin: 0 -.5rem;
    border-radius: 4px;
    transition: background-color .12s ease, color .12s ease;
}

.site-nav .nav-group a:hover,
.site-nav .nav-group a:focus-visible {
    background: #e7e5df;
    color: #1f2328;
    text-decoration: none;
    outline: none;
}

.site-nav a.active {
    color: #1f2328;
    font-weight: 600;
}

.site-nav .site-name {
    color: #1f2328;
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 1rem;
}

.site-nav .site-name:hover {
    text-decoration: none;
}

.site-nav .nav-group {
    display: flex;
    flex-direction: column;
    gap: .1rem;
}

.site-nav .nav-group + .nav-group {
    margin-top: 1.25rem;
}

/* ---------- content column ---------- */
#content {
    margin-left: 11rem;
}

#content > .container {
    max-width: 816px;
    margin: 0;
    padding: 2.5rem 3rem 1rem;
    box-sizing: border-box;
}

#footer {
    margin-left: 11rem;
}

/* ---------- homepage post list ---------- */
.post-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.post-list li {
    display: flex;
    gap: 1.25rem;
    margin: 0 0 .6rem;
}

.post-list time {
    flex: none;
    width: 5.5rem;
    color: #898781;
    font-variant-numeric: tabular-nums;
}

/* ---------- narrow screens ---------- */
@media (max-width: 1023px) {
    .site-nav {
        position: static;
        width: auto;
        height: auto;
        flex-direction: row;
        flex-wrap: wrap;
        align-items: baseline;
        gap: .25rem 1rem;
        padding: 1rem 1.25rem;
        border-right: 0;
        border-bottom: 1px solid #ecebe6;
    }

    .site-nav .site-name {
        width: 100%;
        margin-bottom: .25rem;
    }

    .site-nav .nav-group {
        flex-direction: row;
        flex-wrap: wrap;
        gap: .25rem .5rem;
    }

    .site-nav .nav-group a {
        margin: 0;
    }

    .site-nav .nav-group + .nav-group {
        margin-top: 0;
    }

    #content,
    #footer {
        margin-left: 0;
    }

    #content > .container {
        padding: 1.5rem 1.25rem 1rem;
    }

    .post-list li {
        flex-direction: column;
        gap: 0;
        margin-bottom: .9rem;
    }
}