:root {
    --primary-blue: #0d6efd;
    --dark-blue: #1e3a8a;
    --light-blue: #0ea5e9;
}

.hero-section {
    background: linear-gradient(135deg, var(--dark-blue) 0%, var(--light-blue) 100%);
    padding-top: 100px;
    padding-bottom: 80px;
    color: white;
}

.section-title {
    position: relative;
    padding-bottom: 15px;
    margin-bottom: 30px;
}

.section-title:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--primary-blue);
}

.product-card {
    transition: all 0.3s ease;
    height: 100%;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.industry-card {
    transition: all 0.3s ease;
}

.industry-card:hover {
    background-color: #f8f9fa;
}

.industry-icon {
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 15px;
}

.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--primary-blue);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.back-to-top.active {
    opacity: 1;
    visibility: visible;
}

.nav-link {
    position: relative;
}

.nav-link:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-blue);
    transition: width 0.3s ease;
}

.nav-link:hover:after {
    width: 100%;
}

.category-tabs .nav-link {
    color: #495057;
    font-weight: 500;
}

.category-tabs .nav-link.active {
    color: var(--primary-blue);
    background-color: transparent;
    border-bottom: 3px solid var(--primary-blue);
}

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

#offers{
     background: linear-gradient(135deg, var(--dark-blue) 0%, var(--light-blue) 100%);
}