/* VKHam dropdown chevrons — 2026-10-03. */
.container-header .vkham-top-nav .vkham-sub-toggle {
 display:inline-flex;align-items:center;justify-content:center;
 width:2.75rem;height:2.75rem;margin-inline:.05rem .25rem;padding:0;
 border:0;border-radius:50%;background:transparent;color:inherit;
 vertical-align:middle;cursor:pointer;transition:background-color .15s ease;
}
.container-header .vkham-top-nav .vkham-sub-toggle > span {display:none}
.container-header .vkham-top-nav .vkham-sub-toggle::after {
 content:"";display:block;width:.5rem;height:.5rem;
 border-right:2px solid currentColor;border-bottom:2px solid currentColor;
 transform:translateY(-2px) rotate(45deg);transition:transform .15s ease;
}
.container-header .vkham-top-nav .vkham-sub-toggle:hover,
.container-header .vkham-top-nav .vkham-sub-toggle[aria-expanded="true"] {background:#ffffff20}
.container-header .vkham-top-nav .vkham-sub-toggle[aria-expanded="true"]::after {transform:translateY(2px) rotate(225deg)}
.container-header .vkham-top-nav .vkham-top-sub .vkham-sub-toggle {color:#23472f}
.container-header .vkham-top-nav .vkham-top-sub .vkham-sub-toggle:hover,
.container-header .vkham-top-nav .vkham-top-sub .vkham-sub-toggle[aria-expanded="true"] {background:#235b3a12}
@media(prefers-reduced-motion:reduce) {
 .container-header .vkham-top-nav .vkham-sub-toggle,
 .container-header .vkham-top-nav .vkham-sub-toggle::after {transition:none}
}