/* --- Portfolio Hero --- */
.portfolio-hero { 
    padding: 80px 0 40px; 
    text-align: center; 
}

.portfolio-hero h1 { 
    font-family: 'Outfit', sans-serif; 
    font-size: clamp(2.5rem, 6vw, 4rem); 
    letter-spacing: -2px; 
    margin-bottom: 1rem; 
    color: var(--primary);
}

.portfolio-hero h1 span { 
    color: var(--secondary); 
}

.portfolio-hero p { 
    color: var(--slate); 
    font-size: 1.2rem; 
    max-width: 600px; 
    margin: 0 auto; 
}

/* --- Filter System --- */
.filter-container { 
    display: flex; 
    justify-content: center; 
    gap: 1rem; 
    margin: 3rem 0; 
    flex-wrap: wrap;
}

.filter-btn { 
    padding: 0.7rem 1.8rem; 
    border: 2px solid var(--primary); 
    background: transparent; 
    border-radius: 50px; 
    font-weight: 700; 
    font-family: 'Plus Jakarta Sans', sans-serif;
    cursor: pointer; 
    transition: all 0.3s ease;
    color: var(--primary);
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 1px;
}

.filter-btn:hover, 
.filter-btn.active { 
    background: var(--primary); 
    color: var(--white); 
    box-shadow: 0 10px 20px rgba(26, 29, 68, 0.15);
}

/* --- Work Grid --- */
.portfolio-grid { 
    display: grid; 
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); 
    gap: 2.5rem; 
    margin-bottom: 100px;
}

.work-card { 
    background: var(--white); 
    border-radius: 24px; 
    overflow: hidden; 
    border: 1px solid rgba(0,0,0,0.05); 
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    opacity: 1; /* For JS filtering */
}

.work-card:hover { 
    transform: translateY(-12px); 
    box-shadow: 0 30px 60px -15px rgba(26, 29, 68, 0.12); 
    border-color: var(--secondary);
}

.work-img { 
    height: 300px; 
    background-color: var(--primary); 
    background-size: cover; 
    background-position: center; 
    transition: transform 0.5s ease;
}

.work-card:hover .work-img {
    transform: scale(1.05);
}

.work-content { 
    padding: 2rem; 
}

.work-category { 
    font-size: 0.75rem; 
    font-weight: 800; 
    color: var(--secondary); 
    text-transform: uppercase; 
    letter-spacing: 1.5px;
    display: block;
    margin-bottom: 0.5rem;
}

.work-title { 
    font-family: 'Outfit', sans-serif; 
    font-size: 1.5rem; 
    color: var(--primary);
    margin: 0;
}

/* --- Responsive Layout --- */
@media (max-width: 768px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .filter-container {
        gap: 0.5rem;
    }
    
    .filter-btn {
        padding: 0.5rem 1.2rem;
        font-size: 0.7rem;
    }
}