/* ========================================
   Portfolio Page Styles
   ======================================== */

.pf-page-hero {
    background: var(--dark);
    padding: 140px 24px 60px;
    text-align: center;
}
.pf-page-hero h1 {
    font-size: clamp(1.8rem, 3.5vw, 2.6rem);
    font-weight: 800;
    color: var(--white);
    margin-bottom: 12px;
}
.pf-page-hero p {
    color: var(--gray-400);
    font-size: 1.05rem;
}

.pf-page-body {
    padding: 48px 0 120px;
}

/* Filter */
.pf-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 40px;
    justify-content: center;
}
.pf-filter-btn {
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gray-500);
    background: var(--gray-50);
    border: 1.5px solid var(--gray-100);
    cursor: pointer;
    transition: all var(--transition);
}
.pf-filter-btn:hover {
    border-color: var(--red);
    color: var(--red);
}
.pf-filter-btn.active {
    background: var(--red);
    color: var(--white);
    border-color: var(--red);
}

/* Grid */
.pf-page-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
}

.pf-page-card {
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--white);
    border: 1px solid var(--gray-100);
    transition: all var(--transition);
}
.pf-page-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.pf-page-card .thumb {
    height: 220px;
    overflow: hidden;
    position: relative;
}
.pf-page-card .thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.pf-page-card:hover .thumb img {
    transform: scale(1.05);
}
.pf-page-card .thumb-empty {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
    color: var(--gray-400);
    font-size: 0.9rem;
}
.pf-page-card .info {
    padding: 24px;
}
.pf-page-card .tag {
    display: inline-block;
    padding: 4px 10px;
    background: var(--gray-50);
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--gray-500);
    margin-bottom: 10px;
}
.pf-page-card .info h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 8px;
}
.pf-page-card .info p {
    font-size: 0.9rem;
    color: var(--gray-500);
    line-height: 1.6;
}
.pf-page-card-link {
    display: block;
    color: inherit;
    text-decoration: none;
}

.pf-empty {
    text-align: center;
    padding: 80px 20px;
    color: var(--gray-400);
    font-size: 1rem;
    display: none;
}

/* Back button */
.pf-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--gray-400);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 16px;
    transition: color var(--transition);
}
.pf-back:hover { color: var(--white); }

@media (max-width: 768px) {
    .pf-page-grid { grid-template-columns: 1fr; }
    .pf-page-hero { padding: 120px 24px 40px; }
}