.site-header {
    min-height: 76px;
    padding: 10px clamp(20px, 6vw, 88px);
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border);
    background: rgba(255, 255, 255, .96);
    position: sticky;
    top: 0;
    z-index: 10;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--navy);
    font-weight: 800;
    text-decoration: none;
    letter-spacing: -.02em;
}
.brand img { width: 54px; height: 54px; }
.site-nav { display: flex; align-items: center; gap: 30px; }
.site-nav a { color: var(--navy); font-weight: 650; text-decoration: none; }
.site-nav a:hover { color: var(--red); }
.site-nav .nav-cta {
    padding: 11px 18px;
    color: var(--white);
    background: var(--navy);
    border-radius: 999px;
}
.menu-toggle {
    display: none;
    padding: 9px 14px;
    color: var(--navy);
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 8px;
    font: inherit;
    font-weight: 700;
}

@media (max-width: 820px) {
    .menu-toggle { display: block; }
    .site-nav {
        display: none;
        position: absolute;
        inset: 76px 0 auto;
        padding: 22px;
        flex-direction: column;
        align-items: stretch;
        background: var(--white);
        border-bottom: 1px solid var(--border);
    }
    .site-nav.is-open { display: flex; }
    .site-nav .nav-cta { text-align: center; }
}

@media (max-width: 520px) {
    .brand span { display: none; }
}