/* Expertise Section Styles */
.expertise {
    padding: 50px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    position: relative;
}

.expertise::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="%23000" opacity="0.02"/><circle cx="75" cy="75" r="1" fill="%23000" opacity="0.02"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    pointer-events: none;
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
    margin-top: 4rem;
    position: relative;
    z-index: 1;
}

.expertise-card {
    background: white;
    border-radius: 25px;
    overflow: hidden;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    cursor: pointer;
    position: relative;
}

.expertise-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.1), rgba(247, 147, 30, 0.1));
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 1;
}

.expertise-card:hover::before {
    opacity: 1;
}

.expertise-card:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.15);
}

.card-image {
    position: relative;
    height: 320px;
    overflow: hidden;
}

.card-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(255, 107, 53, 0.1), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.expertise-card:hover .card-image::after {
    opacity: 1;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    filter: brightness(0.9) contrast(1.1);
}

.expertise-card:hover .card-image img {
    transform: scale(1.15);
    filter: brightness(1) contrast(1.2);
}

.card-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.9));
    padding: 4rem 2.5rem 2.5rem;
    color: white;
    transform: translateY(10px);
    transition: transform 0.3s ease;
}

.expertise-card:hover .card-overlay {
    transform: translateY(0);
}

.card-overlay h3 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.8rem;
    color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    letter-spacing: -0.5px;
}

.card-category {
    font-size: 1rem;
    color: #ff6b35;
    font-weight: 600;
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

/* Add floating elements */
.expertise-card::after {
    content: '';
    position: absolute;
    top: 20px;
    right: 20px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #ff6b35, #f7931e);
    border-radius: 50%;
    opacity: 0;
    transform: scale(0);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 2;
}

.expertise-card:hover::after {
    opacity: 0.9;
    transform: scale(1);
}

/* Add subtle animation to cards */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-5px); }
}

.expertise-card:nth-child(1) {
    animation: float 6s ease-in-out infinite;
}

.expertise-card:nth-child(2) {
    animation: float 6s ease-in-out infinite 2s;
}

.expertise-card:nth-child(3) {
    animation: float 6s ease-in-out infinite 4s;
}

/* Enhanced text styling */
.card-overlay h3::after {
    content: '';
    display: block;
    width: 50px;
    height: 3px;
    background: linear-gradient(90deg, #ff6b35, #f7931e);
    margin-top: 0.5rem;
    border-radius: 2px;
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.expertise-card:hover .card-overlay h3::after {
    transform: scaleX(1);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .expertise-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 2.5rem;
    }
    
    .card-image {
        height: 280px;
    }
}

@media (max-width: 768px) {
    .expertise {
        padding: 5rem 0;
    }
    
    .expertise-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
        margin-top: 3rem;
    }
    
    .card-image {
        height: 260px;
    }
    
    .card-overlay {
        padding: 3rem 2rem 2rem;
    }
    
    .card-overlay h3 {
        font-size: 1.5rem;
    }
    
    .expertise-card::after {
        width: 50px;
        height: 50px;
        top: 15px;
        right: 15px;
    }
}

@media (max-width: 480px) {
    .expertise {
        padding: 4rem 0;
    }
    
    .expertise-grid {
        gap: 1.5rem;
        margin-top: 2rem;
    }
    
    .card-image {
        height: 240px;
    }
    
    .card-overlay {
        padding: 2.5rem 1.5rem 1.5rem;
    }
    
    .card-overlay h3 {
        font-size: 1.3rem;
    }
    
    .card-category {
        font-size: 0.9rem;
    }
    
    .expertise-card::after {
        width: 40px;
        height: 40px;
        top: 12px;
        right: 12px;
    }
}