/* ── Portal grid ─────────────────────────────────────────────────────────── */
main {
    flex: 1;
    max-width: 1200px;
    width: 100%;
    margin: 2rem auto;
    padding: 0 1.5rem;
}
.portal-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

/* ── Section card ────────────────────────────────────────────────────────── */
.portal-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.5rem;
}
.portal-card h2 {
    font-size: .75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--muted);
    border-bottom: 2px solid var(--accent);
    padding-bottom: .5rem;
    margin-bottom: 1rem;
}
.portal-card ul {
    list-style: none;
}
.portal-card li {
    margin-bottom: .25rem;
}
.portal-card a {
    display: flex;
    align-items: center;
    gap: .6rem;
    padding: .5rem .6rem;
    border-radius: 7px;
    text-decoration: none;
    color: var(--text);
    font-size: .95rem;
    transition: background .12s;
}
.portal-card a:hover {
    background: var(--bg);
    color: var(--primary);
}
.link-icon {
    font-size: 1.1rem;
    width: 1.4rem;
    text-align: center;
    flex-shrink: 0;
}

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 600px) {
    .portal-grid {
        grid-template-columns: 1fr;
    }
}