.public-shell {
    background: radial-gradient(circle at top, #1a2d57 0%, var(--bg-public) 38%, #060914 100%);
}

.site-header-public {
    position: sticky;
    top: 0;
    z-index: 10;
    background: rgba(7, 12, 24, 0.8);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--border);
}

.site-header-public .shell-width {
    padding: 1rem 0;
}

.site-header-public .header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
}

.site-header-public .header-nav {
    display: flex;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.site-header-public .header-nav a {
    color: var(--text-muted);
    padding: 0.55rem 0.8rem;
    border-radius: 999px;
}

.site-header-public .header-nav a:hover {
    color: var(--text);
    background: rgba(138, 166, 255, 0.14);
}

.public-shell .brand-mark {
    font-weight: 700;
    letter-spacing: 0.01em;
    color: var(--text);
}

.public-shell .site-footer {
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    padding: var(--space-5) 0;
}

.public-shell .footer-row {
    display: flex;
    justify-content: space-between;
    gap: var(--space-3);
    flex-wrap: wrap;
}