/* ===== PORTFOLIO SECTION ===== */
.portfolio {
    padding: 6rem 0;
    background: var(--bg-primary);
    position: relative;
}

.portfolio::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    opacity: 0.5;
    z-index: -1;
}

/* Portfolio Filters */
.portfolio-filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 25px;
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary-color);
    color: rgb(24, 60, 221);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

/* Portfolio Grid */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

/* Portfolio Item */
.portfolio-item {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    background: var(--card-bg);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.portfolio-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.portfolio-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

/* Portfolio Overlay */
.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        135deg,
        rgba(0, 0, 0, 0.8) 0%,
        rgba(99, 102, 241, 0.8) 100%
    );
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 1.5rem;
    opacity: 0;
    transition: all 0.3s ease;
    color: white;
}

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

.portfolio-info h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.portfolio-info p {
    font-size: 0.9rem;
    opacity: 0.9;
    margin-bottom: 1rem;
    line-height: 1.4;
}

/* Tech Tags */
.portfolio-tech {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.tech-tag {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
    backdrop-filter: blur(10px);
}

/* Portfolio Actions */
.portfolio-actions {
    display: flex;
    gap: 0.75rem;
}

.btn-portfolio {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    text-decoration: none;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.btn-portfolio:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
}

/* Responsive */
@media (max-width: 768px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .portfolio-filters {
        gap: 0.5rem;
    }
    
    .filter-btn {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
    
    .portfolio-actions {
        flex-direction: column;
    }
    
    .portfolio-image {
        height: 200px;
    }
}

@media (max-width: 480px) {
    .portfolio {
        padding: 4rem 0;
    }
    
    .portfolio-overlay {
        padding: 1rem;
    }
    
    .portfolio-info h3 {
        font-size: 1.25rem;
    }
    
    .tech-tag {
        font-size: 0.75rem;
        padding: 0.2rem 0.6rem;
    }
}