@layer blocks{.c-marker{inline-size:var(--control-marker-size);block-size:var(--control-marker-size);transition:transform var(--duration-fastest) var(--ease-in);flex:none;position:relative}.c-marker:before,.c-marker:after{content:"";inline-size:100%;block-size:var(--control-marker-bar);background:currentColor;margin-block-start:calc(var(--control-marker-bar) / -2);position:absolute;inset-block-start:50%;inset-inline-start:0}.c-marker:after{transform:rotate(90deg)}.c-marker:before{transition:transform var(--duration-fastest) var(--duration-fast) var(--ease-in), opacity var(--duration-fastest) var(--duration-fast) var(--ease-in)}details[open]>summary .c-marker{transition-delay:var(--duration-fast);transition-timing-function:var(--ease-out);transform:rotate(-90deg)}details[open]>summary .c-marker:before{opacity:0;transition:transform var(--duration-fastest) var(--ease-out), opacity var(--duration-fastest) var(--ease-out);transform:scaleX(0)}}