.hero-video video {
    width: 100%;
    height: auto;
    object-fit: cover;
}
.hero-video {
    position: relative;
    overflow: hidden;
    height: 300px;
}
.hero-body {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.5);
    padding: 20px !important;
}
.hero .title {
    color: white;
    font-size: 2.5rem;
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.7);
}
.card-image img, .image img {
    max-width: 100%;
    height: auto;
    object-fit: cover;
}
.ventilation-image {
    margin: 20px 0;
    border-radius: 8px;
}
a{
    color: #CBDCEB;
    text-decoration: none;
 }

 .menu{
    position: relative;
    z-index: 100;
 }

 .menu a:hover{
    color: #CBDCEB;
 }

 .ddmenu {
    display: flex;
    list-style: none;
    flex-direction: row;
    justify-content: center;
    padding: 10px;
    width: 100%;
    background: #363636;
    margin: 0;
 }

 .ddmenu li{
    background: #363636;
    padding: 10px 30px;
 }

 .ddmenu li ul{
    opacity: 0;
    transition: all 0.5s ease-in-out;
    padding-top: 0px;
    list-style: none;
    padding: 0;
    position: absolute;
 }

 .ddmenu li:hover{
    background: black;
    color: #CBDCEB;
 }

 .ddmenu li:hover ul{
    opacity: 1;
    padding-top: 5px;
 }