.about-hero {
    background: linear-gradient(135deg, rgba(73, 25, 104, 0.9) 0%, rgba(69, 31, 151, 0.9) 100%),
        url('../images/profile/g28.jpg') no-repeat center center;
    background-size: cover;
    padding: 150px 0;
    color: #fff;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.about-hero:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../images/dot-pattern.png') repeat;
    opacity: 0.1;
    z-index: 0;
}

.about-hero h1 {
    color: #fff;
    font-size: 3.2rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.3);
    position: relative;
    z-index: 1;
}

.about-hero p.lead {
    font-size: 1.4rem;
    max-width: 800px;
    margin: 0 auto 30px;
    position: relative;
    z-index: 1;
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.client-card {
    width: 150px;
    height: 150px;
    margin: 0 auto 20px;
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 15px;
}

.client-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

.client-card img {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
    filter: grayscale(100%);
    opacity: 0.8;
    transition: all 0.3s ease;
}

.client-card:hover img {
    filter: grayscale(0);
    opacity: 1;
}

.client-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: #4A2488;
    color: #fff;
    padding: 8px;
    transform: translateY(100%);
    transition: transform 0.3s ease;
    text-align: center;
    font-size: 12px;
}

.client-card:hover .client-info {
    transform: translateY(0);
}

.client-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 20px;
    padding: 20px 0;
}

@media (max-width: 768px) {
    .client-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }
}

.sector-filter {
    margin-bottom: 30px;
}

.section-title {
    margin-bottom: 40px;
    text-align: center;
}

.section-title h2 {
    font-size: 36px;
    margin-bottom: 15px;
}

.section-title p {
    color: #666;
    max-width: 700px;
    margin: 0 auto;
}