.portfolio-section {
    padding-top: 40px;
}

/* Filtros por Categoria */
.portfolio-filters {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 30px;
    margin-bottom: 45px;
}

.filter-btn {
    padding: 10px 20px;
    border-radius: 30px;
    background: var(--bg-panel);
    border: 1px solid var(--glass-border);
    color: var(--text-muted);
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    color: white;
    border-color: var(--primary-blue);
    box-shadow: 0 4px 15px rgba(0, 123, 255, 0.3);
}

/* Grid de Projetos */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 30px;
}

.portfolio-item {
    background: var(--bg-panel);
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid var(--glass-border);
    transition: transform var(--transition-smooth), border-color var(--transition-fast), box-shadow var(--transition-smooth);
    cursor: pointer;
    display: flex;
    flex-direction: column;
}

.portfolio-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 35px rgba(0, 123, 255, 0.25);
    border-color: var(--primary-blue);
}

.portfolio-image {
    height: 250px;
    background: var(--bg-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-blue);
    font-size: 3.5rem;
    border-bottom: 1px solid var(--glass-border);
    overflow: hidden;
    position: relative;
}

.portfolio-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-smooth);
}

.portfolio-item:hover .portfolio-img {
    transform: scale(1.08);
}

/* Overlay de Zoom ao passar o mouse */
.portfolio-image::after {
    content: '\f00e'; /* Ícone fa-search-plus */
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 10, 12, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.portfolio-item:hover .portfolio-image::after {
    opacity: 1;
}

.portfolio-content {
    padding: 25px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.portfolio-tag {
    display: inline-block;
    padding: 5px 12px;
    background: rgba(0, 123, 255, 0.12);
    color: var(--light-blue);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 12px;
    width: fit-content;
}

.portfolio-content h3 {
    font-size: 1.25rem;
    margin-bottom: 10px;
    color: white;
}

.portfolio-content p {
    color: var(--text-muted);
    font-size: 0.92rem;
    line-height: 1.5;
}

/* Modal Lightbox de Galeria */
.portfolio-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(5, 7, 12, 0.93);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    z-index: 10000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.portfolio-modal.show {
    display: flex;
    opacity: 1;
}

.modal-container {
    max-width: 900px;
    width: 100%;
    background: var(--bg-panel);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8);
    position: relative;
    animation: modalPop 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

@keyframes modalPop {
    from { transform: scale(0.92); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.modal-close-btn {
    position: absolute;
    top: 15px;
    right: 20px;
    background: rgba(0, 0, 0, 0.6);
    border: 1px solid var(--glass-border);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-size: 1.4rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    transition: all var(--transition-fast);
}

.modal-close-btn:hover {
    background: var(--primary-blue);
    transform: scale(1.1);
}

.modal-media-wrapper {
    max-height: 65vh;
    width: 100%;
    background: #000;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.modal-media-wrapper img {
    max-width: 100%;
    max-height: 65vh;
    object-fit: contain;
}

.modal-icon-placeholder {
    font-size: 5rem;
    color: var(--primary-blue);
    padding: 60px 0;
}

.modal-details {
    padding: 25px 30px;
    background: var(--bg-panel);
}

.modal-details .portfolio-tag {
    margin-bottom: 10px;
}

.modal-details h3 {
    font-size: 1.6rem;
    margin-bottom: 8px;
    color: white;
}

.modal-details p {
    color: var(--text-muted);
    font-size: 1rem;
}

@media (max-width: 768px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    .portfolio-filters {
        gap: 8px;
    }
    .filter-btn {
        padding: 8px 14px;
        font-size: 0.82rem;
    }
}