/* Portfolio Page Styles */

/* Portfolio Hero */
.portfolio-hero {
    padding: 140px 0 60px;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    position: relative;
    overflow: hidden;
    text-align: center;
}

.portfolio-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(14, 165, 233, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.15) 0%, transparent 50%);
}

.portfolio-title {
    font-size: 2.8rem;
    color: white;
    margin-bottom: 1rem;
    font-weight: 900;
    letter-spacing: -2px;
    position: relative;
    z-index: 1;
}

.portfolio-description {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
    position: relative;
    z-index: 1;
}

/* Filter Tabs */
.portfolio-filters {
    padding: 2rem 0;
    background: white;
    position: sticky;
    top: 80px;
    z-index: 100;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.filter-tabs {
    display: flex;
    gap: 0.8rem;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
}

.filter-tab {
    padding: 0.8rem 1.5rem;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-color);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
}

.filter-tab:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
}

.filter-tab.active {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
    box-shadow: 0 8px 20px rgba(14, 165, 233, 0.3);
}

.filter-tab i {
    font-size: 1.1rem;
}

/* Portfolio Section */
.portfolio-section {
    padding: 60px 0;
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    min-height: 60vh;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2.5rem;
}

/* Portfolio Item */
.portfolio-item {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    cursor: pointer;
    position: relative;
}

.portfolio-item:hover {
    transform: translateY(-15px);
    box-shadow: var(--shadow-colored);
}

.portfolio-item-image {
    width: 100%;
    height: 300px;
    background: linear-gradient(135deg, #e0e7ff 0%, #f3e8ff 100%);
    position: relative;
    overflow: hidden;
}

.portfolio-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.portfolio-item:hover .portfolio-item-image img {
    transform: scale(1.1);
}

.portfolio-item-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.9) 0%, rgba(139, 92, 246, 0.9) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.portfolio-item:hover .portfolio-item-overlay {
    opacity: 1;
}

.portfolio-item-overlay i {
    font-size: 3rem;
    color: white;
}

.portfolio-item-content {
    padding: 2rem;
}

.portfolio-item-category {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    color: var(--primary-color);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.portfolio-item-title {
    font-size: 1.4rem;
    color: var(--dark-color);
    margin-bottom: 0.8rem;
    font-weight: 700;
}

.portfolio-item-description {
    color: var(--text-light);
    line-height: 1.6;
    font-size: 1rem;
}

/* Empty Portfolio */
.empty-portfolio {
    grid-column: 1 / -1;
    text-align: center;
    padding: 5rem 2rem;
}

.empty-portfolio i {
    font-size: 5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 2rem;
}

.empty-portfolio h3 {
    font-size: 2.5rem;
    color: var(--dark-color);
    margin-bottom: 1rem;
    font-weight: 900;
}

.empty-portfolio p {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

/* Portfolio CTA */
.portfolio-cta {
    padding: 100px 0;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    position: relative;
    overflow: hidden;
}

.portfolio-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 50%, rgba(14, 165, 233, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 70% 80%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
}

.cta-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.cta-content h2 {
    font-size: 3rem;
    color: white;
    margin-bottom: 1.5rem;
    font-weight: 900;
    letter-spacing: -1px;
}

.cta-content p {
    font-size: 1.3rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 3rem;
}

.cta-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Lightbox Modal */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.95);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.lightbox.active {
    display: flex;
}

.lightbox-content {
    max-width: 90%;
    max-height: 90%;
    position: relative;
    animation: lightboxZoom 0.3s ease-out;
}

@keyframes lightboxZoom {
    from {
        transform: scale(0.8);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.lightbox-content img {
    max-width: 100%;
    max-height: 85vh;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.lightbox-close {
    position: absolute;
    top: -50px;
    left: 0;
    background: white;
    color: var(--dark-color);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.5rem;
    transition: all 0.3s ease;
}

.lightbox-close:hover {
    transform: rotate(90deg);
    background: var(--primary-color);
    color: white;
}

.lightbox-info {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    margin-top: 1.5rem;
    text-align: center;
}

.lightbox-info h3 {
    color: var(--dark-color);
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
}

.lightbox-info p {
    color: var(--text-light);
}

/* Responsive */
@media (max-width: 768px) {
    .portfolio-title {
        font-size: 2.5rem;
    }

    .portfolio-description {
        font-size: 1.1rem;
    }

    .filter-tabs {
        gap: 0.8rem;
    }

    .filter-tab {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .cta-content h2 {
        font-size: 2rem;
    }

    .cta-content p {
        font-size: 1.1rem;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .cta-buttons .btn {
        width: 100%;
        max-width: 300px;
    }
}