/* Shared navigation: desktop dropdowns and compact mobile header. */
.site-nav {
    position: fixed;
    inset: 0 0 auto;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 2rem;
    box-sizing: border-box;
    width: 100%;
    height: 5rem;
    padding: 0 clamp(1rem, 4vw, 4rem);
    background: white;
    border-bottom: 1px solid #e7e9f0;
    box-shadow: 0 4px 20px rgb(0 0 60 / 5%);
}

.site-nav .logo {
    display: flex;
    flex-shrink: 0;
    align-items: center;
}

.site-nav .logo img {
    display: block;
    width: 12.5rem;
    height: auto;
    max-height: 3rem;
}

.site-nav button {
    font: inherit;
    cursor: pointer;
}

.site-nav a,
.site-nav a:visited {
    color: #000080;
    text-decoration: none;
}

.site-nav a:focus-visible,
.site-nav button:focus-visible {
    outline: 2px solid #000080;
    outline-offset: 4px;
}

.site-nav .nav-links {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.site-nav .menu {
    position: relative;
}

.site-nav .menu-toggle {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: #303347;
    background: transparent;
    border: 0;
    border-radius: 0.5rem;
}

.site-nav .menu-toggle::after {
    content: "";
    width: 0.35rem;
    height: 0.35rem;
    border-right: 1.5px solid currentColor;
    border-bottom: 1.5px solid currentColor;
    transform: translateY(-0.1rem) rotate(45deg);
}

.site-nav .menu-toggle[aria-expanded="true"]::after {
    transform: translateY(0.1rem) rotate(225deg);
}

.site-nav .menu-toggle:hover,
.site-nav .menu-toggle[aria-expanded="true"] {
    color: #000080;
    background: #f2f3fa;
}

.site-nav .dropdown {
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 0;
    min-width: 14rem;
    padding: 0.5rem;
    background: white;
    border: 1px solid #e7e9f0;
    border-radius: 0.75rem;
    box-shadow: 0 12px 32px rgb(0 0 60 / 10%);
}

.site-nav .dropdown a {
    display: block;
    padding: 0.65rem 0.85rem;
    border-radius: 0.4rem;
    white-space: nowrap;
}

.site-nav .dropdown a:hover {
    background: #f2f3fa;
}

.site-nav .nav-email {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    gap: 0.65rem;
    margin-left: auto;
    padding: 0.7rem 1rem;
    color: #000080;
    background: #f2f3fa;
    border: 1px solid #dce0ef;
    border-radius: 0.65rem;
    font-size: 0.95rem;
    transition: background-color 150ms ease, border-color 150ms ease;
}

.site-nav .nav-email:hover {
    background: #e5e8f5;
    border-color: #a8b0d3;
}

.site-nav .nav-email-label,
.site-nav .nav-toggle {
    display: none;
}

@media (max-width: 1000px) {
    .site-nav {
        position: relative;
        height: 4rem;
        gap: 0.5rem;
        padding: 0 0.75rem;
    }

    .site-nav .logo img {
        width: clamp(7rem, 25vw, 12.5rem);
        max-height: 2.5rem;
    }

    .site-nav .nav-email {
        padding: 0.55rem 0.7rem;
        gap: 0.4rem;
    }

    .site-nav .nav-email-address {
        display: none;
    }

    .site-nav .nav-email-label {
        display: inline;
    }

    .site-nav .nav-toggle {
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 5px;
        order: 1;
        flex-shrink: 0;
        width: 2.75rem;
        height: 2.75rem;
        padding: 0;
        border: 1px solid #e7e9f0;
        border-radius: 0.5rem;
        background: white;
    }

    .site-nav .nav-toggle span {
        width: 1.25rem;
        height: 2px;
        background: #000080;
    }

    .site-nav .nav-toggle[aria-expanded="true"] span:first-child {
        transform: translateY(7px) rotate(45deg);
    }

    .site-nav .nav-toggle[aria-expanded="true"] span:nth-child(2) {
        opacity: 0;
    }

    .site-nav .nav-toggle[aria-expanded="true"] span:last-child {
        transform: translateY(-7px) rotate(-45deg);
    }

    .site-nav .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        right: 0;
        left: 0;
        max-height: calc(100dvh - 4rem);
        overflow-y: auto;
        padding: 0.75rem 1rem;
        background: white;
        border-bottom: 1px solid #e7e9f0;
        box-shadow: 0 12px 24px rgb(0 0 60 / 8%);
    }

    .site-nav.is-open .nav-links {
        display: block;
    }

    .site-nav .menu-toggle {
        justify-content: space-between;
        width: 100%;
    }

    .site-nav .dropdown {
        position: static;
        min-width: 0;
        margin: 0.25rem 0 0.5rem;
        padding: 0 0 0 1rem;
        border: 0;
        border-radius: 0;
        box-shadow: none;
    }
}