/* Shared navigation geometry. Page styles may change colors and materials only. */
:root {
    --site-nav-height: 80px;
    --site-nav-gutter: max(22px, 5vw);
    --site-nav-width: min(1440px, calc(100vw - 2 * var(--site-nav-gutter)));
    --site-nav-logo-size: 19px;
    --site-nav-link-size: 14px;
}

.navbar {
    box-sizing: border-box;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    width: var(--site-nav-width);
    max-width: none;
    height: var(--site-nav-height);
    min-height: var(--site-nav-height);
    /* Center on the viewport regardless of each page's content max-width. */
    margin: 0 calc((100% - var(--site-nav-width)) / 2);
    padding: 0;
    border-bottom: 1px solid transparent;
}

.navbar .nav-left {
    display: flex;
    align-items: center;
    flex: 0 0 auto;
}

.navbar .nav-right {
    display: grid;
    /* Reserve the same positions even on pages with fewer existing links. */
    grid-template-columns: 48px 48px 70px 1px 56px 56px;
    align-items: center;
    gap: 20px;
    min-width: 0;
    padding: 0;
}

.navbar :is(.nav-logo, .nav-link, .nav-icon) {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    font-family: var(--site-font, 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei UI', 'Microsoft YaHei', sans-serif);
    line-height: 1.5;
    white-space: nowrap;
    text-transform: none;
}

.navbar .nav-logo {
    font-size: var(--site-nav-logo-size);
    font-weight: 700;
    letter-spacing: -0.025em;
}

.navbar :is(.nav-link, .nav-icon) {
    font-size: var(--site-nav-link-size);
    font-weight: 500;
    letter-spacing: 0;
}

.navbar .nav-divider {
    width: 1px;
    height: 16px;
}

@media (max-width: 700px) {
    :root {
        --site-nav-height: 112px;
        --site-nav-logo-size: 17px;
        --site-nav-link-size: 12px;
    }

    .navbar {
        display: grid;
        grid-template-columns: minmax(0, 1fr);
        grid-template-rows: 44px 44px;
        align-content: center;
        gap: 0;
    }

    .navbar .nav-left { justify-content: center; }
    .navbar .nav-right {
        grid-template-columns: repeat(5, minmax(0, 1fr));
        gap: 0;
    }
    .navbar .nav-divider { display: none; }
}