:root {
    --aiu-navy: #003366;
    --aiu-gold: #FFC107;
}

body { font-family: 'Open Sans', sans-serif; overflow-x: hidden; }

/* Carousel Slider Styling */
.carousel-item {
    height: 90vh;
    background-size: cover;
    background-position: center;
}

.carousel-caption-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(to right, rgba(0, 51, 102, 0.8), transparent);
    color: white;
}

/* Button & Nav Customization */
.btn-primary { background-color: var(--aiu-navy); border-color: var(--aiu-navy); }
.btn-primary:hover { background-color: #002244; }

.navbar-nav .nav-link:hover { color: var(--aiu-gold) !important; }

/* Mobile Adjustments */
@media (max-width: 768px) {
    .carousel-item { height: 60vh; }
    h1.display-3 { font-size: 2rem; }
}