.catalog-intro{border-left:3px solid var(--accent);padding:10px 15px;margin:0 0 18px;background:#65405255;border-radius:0 12px 12px 0}.catalog-intro>b{font-size:14px}.catalog-intro p{font-size:12px;line-height:1.5;margin:7px 0}.catalog-intro details{font-size:12px;color:var(--muted);margin-top:8px}.catalog-intro summary{cursor:pointer;color:var(--accent);min-height:32px}
.catalog-filters{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px;margin-bottom:12px}.catalog-filters label{font-size:11px;min-width:0}.catalog-filters select{width:100%;min-width:0;font-size:13px;min-height:42px;padding:9px;margin-top:5px}.catalog-card-top{display:flex;align-items:center;justify-content:space-between;gap:10px}.catalog-card-top .eyebrow{font-size:9px;letter-spacing:.07em}.challenge-stars{display:inline-flex;align-items:center;gap:5px;white-space:nowrap;color:#ffd29a;font-size:13px;letter-spacing:1px}.challenge-stars i{font-style:normal;color:#d5aebd}.challenge-stars small{font-size:9px;letter-spacing:0;color:var(--muted)}.catalog-card h2{font-size:20px;line-height:1.3}.catalog-pagination{display:flex;align-items:center;justify-content:center;gap:18px;margin:22px 0}.catalog-pagination button{min-height:44px}.catalog-pagination span{font-size:12px}.saved-room-list{margin-top:20px}.saved-room-list summary{cursor:pointer;min-height:34px}
.reward-badge{text-align:left;color:var(--ink);cursor:pointer}.reward-badge:hover{border-color:var(--accent);box-shadow:0 4px 16px #d7a17522}.reward-badge:focus-visible,.catalog-card:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
.catalog-modal-backdrop{position:fixed;inset:0;z-index:100;background:#211422c9;display:flex;align-items:center;justify-content:center;padding:14px;box-sizing:border-box}.catalog-modal{width:min(680px,100%);max-height:calc(100dvh - 28px);display:flex;flex-direction:column;background:#523346;color:var(--ink);border:1px solid #dbad8e;border-radius:20px;box-shadow:0 20px 80px #100a1599;overflow:hidden}.catalog-modal>header{display:flex;justify-content:space-between;gap:12px;align-items:center;padding:17px 20px;border-bottom:1px solid #a5778a;flex-shrink:0}.catalog-modal h2{font-size:22px;line-height:1.3;margin:0}.catalog-modal>header button{min-width:44px;min-height:44px;font-size:24px;padding:5px}.catalog-modal-body{min-height:0;overflow:auto;overscroll-behavior:contain;padding:18px 20px}.catalog-modal-body h3{font-size:18px}.catalog-modal-body p{font-size:13px;line-height:1.6;margin:10px 0}.rule-formula{background:#79535c;padding:12px;border:1px solid #c28f9b;border-radius:10px;color:#fff2e6}.rule-question{border-top:1px solid #b3859766;padding:12px 0;font-size:14px}.catalog-modal>footer{display:flex;gap:10px;align-items:center;justify-content:flex-end;padding:14px 20px;border-top:1px solid #a5778a;flex-shrink:0}.catalog-modal footer button{min-height:44px;font-size:13px}.catalog-modal label{display:block;font-size:12px;margin-bottom:11px}.catalog-modal input,.catalog-modal select,.catalog-modal textarea{box-sizing:border-box;width:100%;margin-top:5px;font-size:14px;background:#714c5d;color:#fff6e9;border:1px solid #c39baa;min-height:40px}.catalog-modal .form-grid{gap:12px;grid-template-columns:repeat(2,minmax(0,1fr))}.catalog-modal .check{display:flex;align-items:center;gap:9px}.catalog-modal .check input{width:auto;min-height:20px;margin:0}.catalog-modal summary{cursor:pointer;color:var(--accent);min-height:36px;font-size:13px}.catalog-score-panel{margin-top:18px}.catalog-score-panel h2{font-size:28px;margin:10px 0}.catalog-score-panel p{font-size:13px;line-height:1.55}.catalog-modal button:focus-visible,.catalog-modal input:focus-visible,.catalog-modal select:focus-visible,.catalog-modal textarea:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
@media(max-width:900px){.catalog-filters{grid-template-columns:repeat(3,minmax(0,1fr))}.catalog-card-top{align-items:flex-start;flex-direction:column;gap:5px}}
@media(max-width:800px){html[data-experience=teacher] .sidebar .nav button{min-height:43px;font-size:13px}.catalog-modal input,.catalog-modal select,.catalog-modal textarea{font-size:16px}.catalog-modal footer{padding-bottom:calc(14px + env(safe-area-inset-bottom))}.catalog-filters select{font-size:16px}}
@media(max-width:540px){.catalog-filters{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.catalog-intro{margin-bottom:14px;padding:9px 12px}.catalog-card h2{font-size:18px}.catalog-modal>header,.catalog-modal-body,.catalog-modal>footer{padding:13px 15px}.catalog-modal h2{font-size:20px}.catalog-modal footer{flex-wrap:wrap}.catalog-modal footer .primary{flex:1}.catalog-modal-body p{font-size:12px}.simple-heading>.row{flex-wrap:wrap;gap:8px;margin-top:8px}.simple-heading>.row button{font-size:12px;min-height:44px}}
.question-difficulty-stars{display:inline-flex;flex-shrink:0}.question-difficulty-stars .challenge-stars{font-size:11px;letter-spacing:0;gap:3px}.question-difficulty-stars small{font-size:8px}
@media(max-width:540px){.fixed-question-pane>.row{flex-wrap:wrap;gap:5px}.question-difficulty-stars .challenge-stars{font-size:10px}}
.catalog-mode-tabs{display:flex;gap:9px;margin:0 0 17px}.catalog-mode-tabs button{flex:1;min-height:44px;font-size:13px;border:1px solid #b58298}.catalog-mode-tabs .selected{background:#edb887;color:#3d2636;border-color:#ffd29a;font-weight:700}
@media(max-width:800px){html[data-experience=teacher] .simple-shell .nav{grid-template-columns:repeat(4,minmax(0,1fr))!important}html[data-experience=teacher] .simple-shell .nav button[onclick="nav('solo')"]{display:flex!important}}
@media(max-width:540px){.catalog-mode-tabs{gap:6px}.catalog-mode-tabs button{font-size:11px;padding:8px 5px}}