:root {
    --shell-beige: #f4f0ea;
    --shell-gold: #c2a682;
    --shell-gold-dark: #a88b67;
    --shell-dark: #2b2b2b;
    --shell-muted: #666666;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    min-height: 142px;
    padding: .65rem max(5%, calc((100vw - 1200px) / 2));
    margin: 0;
    gap: 2rem;
    background: linear-gradient(90deg, rgba(244,240,234,.96), rgba(250,247,242,.9), rgba(244,240,234,.96));
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(194,166,130,.42);
    box-shadow: 0 5px 18px rgba(43,43,43,.055);
}

.site-header::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -18px;
    height: 18px;
    background: linear-gradient(to bottom, rgba(43,43,43,.045), transparent);
    pointer-events: none;
}

.site-header .site-brand {
    display: flex;
    align-items: center;
    gap: 1.35rem;
    color: var(--shell-dark);
    text-decoration: none;
}

.site-header .site-brand img {
    display: block;
    width: auto;
    height: 130px;
    filter: drop-shadow(0 3px 7px rgba(43,43,43,.1));
    transition: filter .35s ease, transform .35s ease;
}

.site-header .site-brand:hover img {
    filter: drop-shadow(0 5px 10px rgba(43,43,43,.14));
    transform: translateY(-1px);
}

.site-header .site-tagline {
    padding-left: 1.35rem;
    border-left: 1px solid rgba(194,166,130,.8);
    color: var(--shell-muted);
    font-size: .72rem;
    font-weight: 500;
    line-height: 1.75;
    letter-spacing: .2em;
    text-transform: uppercase;
    white-space: nowrap;
}

.site-header .site-nav {
    position: static;
    padding: 0;
    pointer-events: auto;
}

.site-header .site-nav ul {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.site-header .site-nav a {
    color: var(--shell-dark);
    font-family: 'Montserrat', sans-serif;
    font-size: .95rem;
    font-weight: 500;
    text-decoration: none;
    transition: color .25s ease;
}

.site-header .site-nav a:hover,
.site-header .site-nav a[aria-current="page"] {
    color: var(--shell-gold-dark);
}

.site-header .site-nav .site-contact-link {
    padding: .62rem 1.2rem;
    border-radius: 4px;
    color: #fff;
    background: var(--shell-gold);
    font-weight: 600;
}

.site-header .site-nav .site-contact-link:hover {
    color: #fff;
    background: var(--shell-gold-dark);
}

.site-menu-toggle {
    z-index: 1002;
    display: none;
    width: 46px;
    height: 46px;
    padding: 0;
    border: 1px solid rgba(194,166,130,.65);
    border-radius: 8px;
    background: rgba(255,255,255,.72);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
}

.site-menu-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    border-radius: 2px;
    background: var(--shell-dark);
    transition: transform .25s ease, opacity .2s ease;
}

.site-menu-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.site-menu-toggle.is-open span:nth-child(2) { opacity: 0; }
.site-menu-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 900px) {
    .site-header {
        min-height: 112px;
        padding-block: .65rem;
    }

    .site-header .site-brand {
        gap: .8rem;
    }

    .site-header .site-brand img {
        height: 102px;
    }

    .site-header .site-tagline {
        padding-left: .8rem;
        font-size: .62rem;
        letter-spacing: .14em;
    }

    .site-menu-toggle {
        display: flex;
    }

    .site-header .site-nav {
        position: absolute;
        top: calc(100% + 1px);
        left: 0;
        right: 0;
        padding: 0 5%;
        pointer-events: none;
    }

    .site-header .site-nav ul {
        display: flex;
        flex-direction: column;
        gap: 0;
        padding: .55rem;
        background: rgba(250,247,242,.98);
        border: 1px solid rgba(194,166,130,.35);
        border-top: 0;
        border-radius: 0 0 12px 12px;
        box-shadow: 0 14px 30px rgba(43,43,43,.12);
        opacity: 0;
        transform: translateY(-10px);
        visibility: hidden;
        transition: opacity .22s ease, transform .22s ease, visibility 0s linear .22s;
    }

    .site-header .site-nav.is-open {
        pointer-events: auto;
    }

    .site-header .site-nav.is-open ul {
        opacity: 1;
        transform: translateY(0);
        visibility: visible;
        transition-delay: 0s;
    }

    .site-header .site-nav li {
        width: 100%;
    }

    .site-header .site-nav a {
        display: block;
        width: 100%;
        padding: .9rem 1rem;
        border-bottom: 1px solid rgba(194,166,130,.2);
        font-size: .94rem;
    }

    .site-header .site-nav li:last-child a {
        border-bottom: 0;
    }

    .site-header .site-nav .site-contact-link {
        margin-top: .35rem;
        padding: .85rem 1rem;
        text-align: center;
    }
}

@media (max-width: 520px) {
    .site-header {
        min-height: 96px;
    }

    .site-header .site-brand img {
        height: 86px;
    }

    .site-header .site-tagline {
        display: none;
    }
}