header.top {
    background: var(--bg);
    border-bottom: 1px solid var(--line2);
    position: sticky;
    top: 0;
    z-index: 30;
}
.topwrap {
    max-width: var(--maxw);
    margin: 0 auto;
    display: flex;
    gap: 18px;
    align-items: center;
    flex-wrap: wrap;
    padding: 11px 20px 0;
}
.brand {
    font-family: var(--sans);
    font-weight: 650;
    font-size: 20px;
    letter-spacing: -0.02em;
}
nav.tabs {
    margin-left: auto;
    display: flex;
    gap: 2px;
    flex-wrap: wrap;
}
nav.tabs a {
    background: none;
    border: 0;
    border-bottom: 3px solid transparent;
    color: var(--ink2);
    padding: 9px 11px;
    cursor: pointer;
    display: block;
    text-decoration: none;
    font: 600 14.5px var(--sans);
}
nav.tabs a:hover {
    color: var(--ink);
}
nav.tabs a[aria-current="page"] {
    color: var(--ink);
    border-bottom-color: var(--accent);
}
main {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 44px 24px 90px;
}
.lede {
    color: var(--ink2);
    max-width: 66ch;
    font-size: 20px;
    line-height: 1.6;
}

@media (max-width: 820px) {
    h1 {
        font-size: 34px;
    }
    main {
        padding: 30px 18px 60px;
    }
    .topwrap {
        gap: 10px;
        padding: 12px 18px 0;
    }
    nav.tabs {
        margin-left: 0;
        width: 100%;
        gap: 0;
    }
    nav.tabs a {
        font-size: 12px;
        padding: 8px 7px;
    }
    .brand {
        flex-wrap: wrap;
        gap: 7px;
    }
    .lede {
        font-size: 18px;
    }
}