/* Hero Section */
.hero-section {
    background: url('../Image/certification.png') center center/cover no-repeat;
}

/* Companies Grid */
.companies-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 60px;
}

.company-card {
    background: #ffffff;
    border: 1px solid #e5e9ef;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
    overflow: hidden;
    opacity: 0.7;
    position: relative;
}

.company-card:hover {
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    transform: translateY(-3px);
    opacity: 1;
}

.company-card::before {
    content: 'TERMINATED';
    position: absolute;
    top: 10px;
    right: 10px;
    background: #e74c3c;
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 10px;
    font-weight: bold;
    letter-spacing: 0.5px;
    z-index: 2;
}


.company-card img {
    width: 100%;
    height: 90%;
    object-fit: contain;
    filter: grayscale(100%);
    z-index: 1;
}

/* Mobile Responsive */
@media (max-width: 1024px) {
    .companies-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 15px;
    }
}

@media (max-width: 768px) {
    .nav-container {
        padding: 0 15px;
    }

    nav ul {
        display: none;
    }

    .mobile-menu {
        display: flex;
    }

    .companies-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .company-card {
        padding: 20px;
        min-height: 160px;
    }
}

@media (max-width: 480px) {
    .companies-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .company-card {
        padding: 18px;
        min-height: 140px;
    }
}