/* Navigasi di dalam header (front) */
.header-nav {
    margin-top: 0.75rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.header-nav a {
    font-size: 0.85rem;
    padding: 0.35rem 0.9rem;
    border-radius: 999px;
    border: 1px solid rgba(15, 23, 42, 0.08);
    background: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    color: #0f172a;
    transition: background 0.15s ease, box-shadow 0.15s ease, transform 0.1s ease;
}

.header-nav a:hover {
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.12);
    transform: translateY(-1px);
}

.header-nav a.active {
    background: #0f172a;
    color: #ffffff;
}

/* Grid link di portal */
.portal-grid {
    margin-top: 1.75rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
}

.portal-item {
    display: block;
    padding: 1rem 1.2rem;
    border-radius: 1rem;
    background: #ffffff;
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.06);
    text-decoration: none;
    color: #0f172a;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.portal-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.12);
}

.portal-item-title {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.portal-item-desc {
    font-size: 0.85rem;
    color: #64748b;
}