/* 
   BNR Infrastructure - Professional UI Animations 
   Theme: Inter, #144bb8 (Primary), #0D337B (Dark)
*/

/* A) Card Hover Lift & B) Image Zoom Animation */
.service-card, .value-card, .project-card, .stat-card, .job-card {
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease;
}

.service-card:hover, .value-card:hover, .project-card:hover, .stat-card:hover, .job-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* Image Zoom */
.project-card .project-img, .service-card img, .hero-bg {
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-card:hover .project-img, .service-card:hover img {
    transform: scale(1.08);
}

/* D) Button Hover Lift */
.btn-primary, .btn-secondary, .btn-header, .btn-submit, .btn-quote, .btn-apply, .btn-touch {
    transition: transform 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
}

.btn-primary:hover, .btn-secondary:hover, .btn-header:hover, .btn-submit:hover, .btn-quote:hover, .btn-apply:hover, .btn-touch:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 15px -3px rgba(20, 75, 184, 0.4);
}

/* E) Navbar Underline Animation */
.nav-link {
    position: relative;
    padding-bottom: 4px;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: #144bb8;
    transition: width 0.3s ease;
}

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

/* C) Fade-In On Scroll */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Statistics Counter Animation */
.stat-number {
    display: inline-block;
    min-width: 2ch;
}

/* Timeline Animations */
.timeline-item {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease-out;
}

.timeline-item.reveal-active {
    opacity: 1;
    transform: translateY(0);
}

/* Client Logo Animations */
.client-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    align-items: center;
    justify-items: center;
}

@media (min-width: 768px) {
    .client-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1024px) {
    .client-grid {
        grid-template-columns: repeat(6, 1fr);
    }
}

.client-logo-box {
    width: 100%;
    max-width: 160px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.4s ease;
    filter: grayscale(100%);
    opacity: 0.6;
}

.client-logo-box img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.client-logo-box:hover {
    filter: grayscale(0%);
    opacity: 1;
    transform: scale(1.1);
}