/* Light theme */
html[data-theme="light"] .banner {
    content: url("./images/main/banner_light.png");
}

/* Dark theme */
html[data-theme="dark"] .banner {
    content: url("./images/main/banner_dark.png");
}

/* Common styles for both */
.banner {
    width: 100%;
    height: auto;
    background-color: transparent !important;
}

.no-background {
    background-color: transparent !important;
}

/* Fix language switcher dropdown layout */
.bd-navbar .dropdown {
    display: inline-block;
    vertical-align: middle;
}

.bd-navbar .dropdown .btn {
  min-width: 100px;  /* reserve space so Chinese doesn’t break */
    white-space: nowrap;
}