/* Supplemental learning tools: scoped to avoid changing the existing app */
.da-study-extras{max-width:1160px;margin:12px auto;color:#1b3850;font-family:system-ui,-apple-system,Segoe UI,sans-serif}.da-study-extras *{box-sizing:border-box}.da-study-toolbar{display:flex;justify-content:flex-end}.da-study-extras button,.da-study-extras select{font:inherit;cursor:pointer;border:1px solid #a9c9d6;border-radius:10px;padding:9px 13px;background:#fff;color:#145d7d}.da-study-extras button:hover{background:#eaf8fb}.da-study-toolbar button{background:#0e7595;color:white;font-weight:700}.da-study-dialog{margin:10px 0 22px;padding:20px;border:1px solid #c8e1e9;border-radius:17px;background:#f9fdff;box-shadow:0 4px 20px #102a4312}.da-study-head{display:flex;align-items:flex-start;justify-content:space-between;gap:15px}.da-study-head h2{margin:0;font-size:23px;color:#125a76}.da-study-head p{margin:5px 0 14px}.da-study-filters,.da-study-tabs,.da-study-sheet-options{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:10px 0}.da-study-filters label{display:flex;flex-direction:column;gap:4px;font-size:13px;flex:1 1 160px}.da-study-filters select{width:100%;background:white}.da-study-tabs button.active{background:#116e93;color:white}.da-study-summary,.da-study-help{font-size:13px;color:#567082}.da-study-unit{margin:9px 0;background:#fff;border:1px solid #d4e5ea;border-radius:10px;padding:12px}.da-study-unit>summary{cursor:pointer;display:flex;justify-content:space-between;gap:10px}.da-study-unit summary span{color:#628393;font-size:13px}.da-study-example{padding:12px 0;border-top:1px solid #e8eff2;margin-top:9px}.da-study-example details{margin-top:8px}.da-study-example details summary{cursor:pointer;color:#12658b}.da-study-example p{margin:8px 0}.da-study-day{display:flex;gap:12px;align-items:center;padding:12px;background:#fff;border:1px solid #dfebef;border-radius:10px;margin:8px 0}.da-study-day small{display:block;color:#5e7585}.da-study-day input{width:20px;height:20px}.da-study-dialog[hidden]{display:none!important}@media(max-width:600px){.da-study-dialog{padding:13px}.da-study-head h2{font-size:20px}.da-study-toolbar button{width:100%}.da-study-head{flex-wrap:wrap}}