.site-header,
.site-header * {
    box-sizing: border-box;
}

.site-header {
    position: sticky;
    z-index: 1000;
    top: 0;
    width: 100%;
    margin: 0;
    border-bottom: 1px solid #e5e9ee;
    background: #fffefb;
    color: #152b45;
    font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    font-size: 15px;
    line-height: 1.5;
}

.site-nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    width: min(100% - 64px, 1200px);
    min-height: 80px;
    margin: 0 auto;
}

.site-brand {
    display: inline-flex;
    flex-shrink: 0;
    align-items: center;
    gap: 12px;
    margin: 0;
    padding: 0;
    color: #152b45;
    font-size: 15px;
    font-weight: 800;
    line-height: 1;
    letter-spacing: .12em;
    text-decoration: none;
}

.site-brand:hover,
.site-brand:visited {
    color: #152b45;
}

.site-brand img {
    display: block;
    flex-shrink: 0;
    width: 52px;
    height: 52px;
    max-width: none;
    margin: 0;
    object-fit: contain;
}

.site-navigation {
    position: relative;
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0;
    padding: 0;
}

.site-nav-pill {
    position: absolute;
    top: 50%;
    left: 0;
    z-index: 0;
    width: 0;
    height: 44px;
    border-radius: 7px;
    background: #edf2fc;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-50%);
    transition: transform .32s cubic-bezier(.4, 0, .2, 1), width .32s cubic-bezier(.4, 0, .2, 1), opacity .18s ease;
}

/* JS positions the pill before revealing it, so it never flashes in the corner */
.site-nav-pill.is-ready {
    opacity: 1;
}

.site-navigation a {
    position: relative;
    z-index: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    margin: 0;
    padding: 10px 17px;
    border-radius: 7px;
    background: transparent;
    color: #526174;
    font-size: 14px;
    font-weight: 600;
    line-height: 24px;
    letter-spacing: .02em;
    text-decoration: none;
    white-space: nowrap;
    transition: color .15s ease;
}

.site-navigation a:hover,
.site-navigation a[aria-current="page"] {
    color: #2558d9;
}

.site-menu-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-width: 44px;
    min-height: 44px;
    margin: 0;
    padding: 10px 12px;
    border: 1px solid #dce3ed;
    border-radius: 7px;
    background: #fffefb;
    color: #152b45;
    font-family: inherit;
    font-size: 13px;
    font-weight: 600;
    line-height: 22px;
    letter-spacing: 0;
    cursor: pointer;
    appearance: none;
}

.site-menu-toggle:hover,
.site-menu-toggle[aria-expanded="true"] {
    border-color: #b9c9e6;
    background: #edf2fc;
}

.site-menu-icon {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 18px;
    height: 14px;
}

.site-menu-icon span {
    display: block;
    width: 18px;
    height: 2px;
    border-radius: 2px;
    background: currentColor;
}

.site-header a:focus-visible,
.site-menu-toggle:focus-visible {
    outline: 3px solid #2558d9;
    outline-offset: 4px;
}

@media (max-width: 767px) {
    .site-nav-inner {
        flex-wrap: wrap;
        gap: 0 12px;
        width: calc(100% - 40px);
        min-height: 72px;
    }

    .site-brand {
        min-height: 72px;
        gap: 8px;
        font-size: 13px;
    }

    .site-brand img {
        width: 44px;
        height: 44px;
    }

    .site-navigation {
        flex-basis: 100%;
        flex-wrap: wrap;
        align-items: stretch;
        gap: 4px;
        padding: 4px 0 16px;
    }

    .site-navigation a {
        flex: 1 0 calc(50% - 4px);
        justify-content: flex-start;
        min-height: 48px;
        padding: 12px 16px;
    }

    /* Narrow screens wrap the links into a list, so a sliding pill is meaningless */
    .site-nav-pill {
        display: none;
    }

    .site-navigation a[aria-current="page"] {
        background: #edf2fc;
    }

    .site-nav-ready .site-menu-toggle {
        display: inline-flex;
    }

    .site-nav-ready .site-navigation {
        display: none;
    }

    .site-nav-ready .site-menu-toggle[aria-expanded="true"] + .site-navigation {
        display: flex;
    }
}

@media (prefers-reduced-motion: reduce) {
    .site-navigation a,
    .site-nav-pill {
        transition: none;
    }
}