.focus-light-layer{position:fixed;inset:0;z-index:2147483646;pointer-events:none;user-select:none}
.focus-light-layer[hidden]{display:none!important}
.focus-light-layer.is-flashing{animation:focus-light-flash var(--flash-period,1s) steps(1,end) infinite}
@keyframes focus-light-flash{0%{opacity:1}50%{opacity:0}100%{opacity:1}}
.focus-light [data-light-stop]{background:#fff;color:#173c49}
.focus-light [data-light-summary]{font-weight:700}
@media print{.focus-light-layer,.focus-light{display:none!important}}
.study-settings{max-width:900px;margin:0 auto 1rem;padding:0 .75rem;color:#173c49}
.study-settings>details>summary{display:flex;align-items:center;gap:.5rem;width:fit-content;padding:.65rem .9rem;border:1px solid #829eaa;border-radius:8px;background:#f5fafb;font-weight:700;cursor:pointer;margin-bottom:.75rem}
.study-settings>details>summary:focus-visible,.light-sensitivity-notice button:focus-visible{outline:3px solid #12677a;outline-offset:3px}
.light-sensitivity-notice{border:1px solid #b18c3c;background:#fff8e8;border-radius:8px;padding:.75rem;font-size:.9rem;line-height:1.5}
.light-sensitivity-notice p{margin:0 0 .5rem}
.light-sensitivity-notice button{background:white;color:#173c49;border:1px solid #829eaa;border-radius:6px;padding:.5rem .75rem;cursor:pointer}
.light-sensitivity-notice[hidden]{display:none!important}