.page-header {
    background: var(--bg-light);
    padding: 100px 20px 60px;
    border-bottom: 1px solid var(--border-color);
}
.page-header h1 {
    font-size: 56px;
    font-weight: 800;
    margin-bottom: 20px;
}
.page-header .subtitle {
    font-size: 20px;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto;
}

.clients-section {
    padding: 100px 0;
    background: var(--bg-white);
}

.clients-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.client-card {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: var(--text-main);
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.02);
}

.client-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.08);
    border-color: var(--primary);
}

.client-card:hover .client-info p {
    color: var(--primary);
}

.client-logo-wrapper {
    height: 200px;
    background: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    border-bottom: 1px solid var(--border-color);
}

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

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

.client-info {
    padding: 25px;
    text-align: center;
}

.client-info h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 10px;
}

.client-info p {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: color 0.3s ease;
}

.client-card.placeholder {
    cursor: default;
    border: 2px dashed var(--border-color);
    background: transparent;
    box-shadow: none;
}

.client-card.placeholder:hover {
    transform: none;
    border-color: var(--primary);
}

.client-card.placeholder .client-logo-wrapper {
    background: transparent;
    border-bottom: none;
}

.client-card.placeholder .client-logo-wrapper i {
    font-size: 48px;
    color: var(--border-color);
    transition: color 0.3s ease;
}

.client-card.placeholder:hover .client-logo-wrapper i {
    color: var(--primary);
}

#cta {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    text-align: center;
    padding: 100px 20px;
}
#cta h1 {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 20px;
}
#cta p {
    font-size: 20px;
    opacity: 0.9;
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

@media (max-width: 768px) {
    .page-header h1 {
        font-size: 40px;
    }
}