.hero-carousel-wrapper {
    position: relative;
    overflow: hidden;
    height: 100vh;
}

.hero-img {
    width: 100%;
    height: 100vh;
    object-fit: cover;
    filter: brightness(0.55);
}

.hero-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    width: 90%;
    max-width: 700px;
    z-index: 10;
    pointer-events: none; /* clicks pass through to carousel except button */
}

.hero-overlay .btn {
    pointer-events: auto; /* re-enable clicks just for the button */
}

@media (max-width: 768px) {
    .hero-img {
        height: 400px;
    }
}

.carousel-inner,
.carousel-item {
    height: 100vh;
}

.sticky-header {
    position: sticky  !important;
    top: 0;
    z-index: 1000;
    transition: padding 0.25s ease, box-shadow 0.25s ease;
}

.sticky-header.scrolled {
    padding-top: 0.5rem !important;
    padding-bottom: 0.5rem !important;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.sticky-header.scrolled .navbar-brand {
    font-size: 1.1rem;
}