.ad-header {
    min-height: 280px;
}
.navbar-toggler:focus {
    outline: none !important;
    box-shadow: none !important;
}
.animated-bg {
    color: black;
    background-color: #cceeff; /* deeper blue base */
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='1000' height='40'%3E%3Cpath d='M0 20 Q 125 0 250 20 T 500 20 T 750 20 T 1000 20 V40 H0 Z' fill='%233399cc' /%3E%3C/svg%3E");
    background-repeat: repeat-x;
    background-position: bottom;
    background-size: 1000px 40px;
    animation: waveMove 12s linear infinite;
    border-top-left-radius: 0.375rem; /* match Bootstrap dropdown rounding */
    border-top-right-radius: 0.375rem;
    height: 40px; /* or however tall your div is */
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

@keyframes waveMove {
    0% {
        background-position-x: 0;
    }

    100% {
        background-position-x: 1000px;
    }
}