:root{--bg:#fff;--ink:#19263c;--muted:#728099;--blue:#2e60e8;--blue-light:#eef3ff;--line:#e7ebf2;--soft:#f8faff;--radius:16px;--side:214px;--shadow:0 7px 24px #1a315b07;font-family:Inter,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;color:var(--ink);background:#fff;font-synthesis:none}*{box-sizing:border-box}body{margin:0;font-size:14px;line-height:1.5}button,input,select,textarea{font:inherit;color:inherit}button,a,select,input,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{opacity:.4;cursor:not-allowed}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{outline:3px solid #8dacff;outline-offset:3px}a{color:var(--blue);text-decoration:none}h1,h2,h3,p{margin-top:0}button{border:0;background:none}input,select,textarea{max-width:100%}textarea{resize:vertical}.icon{width:20px;height:20px;flex:none;vertical-align:middle}.skip-link{position:fixed;left:12px;top:-60px;z-index:100;background:white;padding:14px}.skip-link:focus{top:10px}.boot{text-align:center;padding:100px 30px}.boot-mark{display:grid;place-items:center;background:var(--blue);color:white;font-size:32px;width:60px;height:60px;border-radius:18px;margin:0 auto 20px}.seo-content{max-width:960px;margin:20px auto;padding:25px}.seo-content li{margin-bottom:16px}.app-header{height:76px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 30px 0 23px;gap:20px;position:sticky;top:0;background:#fff;z-index:30}.brand{display:flex;align-items:center;gap:11px;min-width:230px;color:var(--ink)}.brand-mark{display:grid;place-items:center;width:40px;height:43px;background:var(--blue);border-radius:13px;box-shadow:0 4px 10px #2e60e822;transform:rotate(-4deg);color:white}.brand-mark .icon{width:25px;height:25px}.brand b{font-size:19px;letter-spacing:-.65px;display:block;line-height:1.15}.brand small{display:block;font-size:10px;color:var(--muted);letter-spacing:1.4px;margin-top:5px}.header-center{color:#8691a4;display:flex;gap:13px;align-items:center;font-size:12px;flex:1;margin-left:25px}.header-center strong{font-weight:500;color:#54627a}.header-right{display:flex;align-items:center;gap:15px}.language-select{border:0;background:transparent;padding:9px 20px 9px 4px;font-size:13px;max-width:135px}.local-pill{border:1px solid var(--line);border-radius:9px;padding:9px 13px;display:flex;align-items:center;gap:8px;color:#586983;font-size:12px;white-space:nowrap}.dot{width:6px;height:6px;background:#27a089;border-radius:50%;display:inline-block}.sidebar{width:var(--side);position:fixed;left:0;top:76px;bottom:0;border-right:1px solid var(--line);background:white;z-index:25;padding:23px 13px 20px;display:flex;flex-direction:column;overflow:auto;scrollbar-width:thin}.side-label{font-size:9px;letter-spacing:1.7px;font-weight:650;color:#9ca6b6;margin:6px 13px 12px}.nav-btn{display:flex;align-items:center;gap:11px;width:100%;padding:11px 13px;border-radius:9px;text-align:left;font-size:12px;color:#657089;transition:background .15s;margin-bottom:3px}.nav-btn .icon{width:17px;height:17px}.nav-btn:hover{background:#f6f8fc}.nav-btn.active{background:var(--blue-light);color:var(--blue);font-weight:650}.nav-count{margin-left:auto;color:#8b98af;font-size:10px}.side-divider{height:1px;background:var(--line);margin:20px 13px}.nav-subject{padding:8px 13px;margin-bottom:2px}.nav-subject .subject-dot{width:7px;height:7px;border-radius:3px;background:currentColor}.side-bottom{margin-top:auto;padding-top:25px}.side-note{border-radius:13px;background:#f7f9fe;margin:12px 7px 0;padding:15px;font-size:11px;color:#78849a;line-height:1.65}.side-note .icon{color:var(--blue);margin-bottom:8px}.side-note b{display:block;color:#3c4c65;margin-bottom:4px}.main{margin-left:var(--side);padding:30px 30px 18px;max-width:2400px}.page-kicker{font-size:10px;letter-spacing:1.6px;font-weight:600;color:#7a89a0;display:flex;align-items:center;gap:8px;margin-bottom:19px}.page-kicker .icon{width:14px;height:14px}.intro{display:flex;justify-content:space-between;align-items:center;gap:25px;margin-bottom:25px}.intro h1{font-size:clamp(31px,2.7vw,48px);line-height:1.13;letter-spacing:-1.8px;font-weight:650;margin:0 0 14px}.intro h1 span{color:var(--blue)}.intro p{color:#7b879b;font-size:13px;margin:0}.hero-actions{display:flex;flex-direction:column;align-items:flex-end;gap:10px}.hero-actions small{font-size:10px;color:#91a0b5;display:flex;gap:5px;align-items:center}.hero-actions small .icon{width:12px;height:12px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 15px;font-weight:550;font-size:12px;border:1px solid var(--line);background:#fff;border-radius:9px;line-height:1.4;white-space:nowrap;min-height:40px;transition:background .15s,transform .15s}.btn:hover{background:#f7f9fc;border-color:#d4dce9}.btn.primary{background:var(--blue);color:white;border-color:var(--blue);box-shadow:0 3px 7px #2e60e812}.btn.primary:hover{background:#244ed0}.btn.soft{background:var(--blue-light);color:var(--blue);border-color:#e7edff}.btn.small{font-size:11px;min-height:32px;padding:7px 10px}.btn .icon{width:16px;height:16px}.btn.full{width:100%}.btn.danger{color:#bd4c4c}.icon-btn{height:33px;width:33px;display:inline-grid;place-items:center;border:1px solid var(--line);border-radius:8px;color:#8593aa;background:white;flex:none}.icon-btn .icon{width:16px;height:16px}.icon-btn:hover,.icon-btn.active{color:var(--blue);background:var(--blue-light);border-color:#ccdaff}.subject-strip{display:flex;gap:10px;padding-bottom:10px;overflow:auto;scrollbar-width:thin;margin-bottom:16px}.subject-tile{min-width:130px;flex:1;display:flex;flex-direction:column;align-items:flex-start;gap:8px;border-radius:12px;border:1px solid var(--line);padding:14px 14px 11px;text-align:left;transition:border .15s,transform .15s;position:relative;background:#fff}.subject-tile:hover{transform:translateY(-2px)}.subject-tile.active{border-color:#91b0ff;background:#f8faff;box-shadow:0 0 0 2px #2e60e807}.subject-tile .tile-icon{height:29px;width:29px;display:grid;place-items:center;border-radius:9px}.subject-tile .icon{height:18px;width:18px}.subject-tile b{font-weight:600;font-size:11px;white-space:nowrap}.subject-tile small{color:#919db0;font-size:9px;margin-top:-4px;white-space:nowrap}.blue{color:#3370de}.pink{color:#d06b98}.teal{color:#359c91}.amber{color:#be9035}.orange{color:#d28c5e}.violet{color:#9674cf}.cyan{color:#439ab8}.blue .tile-icon{background:#edf3ff}.pink .tile-icon{background:#fceff5}.teal .tile-icon{background:#edf8f5}.amber .tile-icon{background:#fff7e8}.orange .tile-icon{background:#fdf2eb}.violet .tile-icon{background:#f4effc}.cyan .tile-icon{background:#edf7fb}.builder-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:24px;align-items:start}.builder-main{min-width:0}.steps{display:flex;align-items:center;padding:4px 2px 19px;border-bottom:1px solid var(--line);margin-bottom:21px;gap:18px}.step{display:flex;align-items:center;gap:9px;color:#8f9bad;font-size:11px;padding:0;text-align:left}.step-num{height:25px;width:25px;display:grid;place-items:center;border-radius:50%;font-size:11px;border:1px solid #e4e9f1;flex:none;color:#8492aa}.step.active{color:var(--ink);font-weight:600}.step.active .step-num{background:var(--blue);border-color:var(--blue);color:white}.step-line{width:28px;height:1px;background:#e6ebf4;flex:1;max-width:70px}.ad-slot{border:1px dashed #dce2ec;background:repeating-linear-gradient(135deg,#fafbfd,#fafbfd 4px,#fdfdfe 4px,#fdfdfe 8px);border-radius:10px;display:flex;align-items:center;justify-content:center;flex-direction:column;min-width:0;overflow:hidden;color:#b3bdcd;position:relative;pointer-events:none}.ad-slot .ad-label{font-size:8px;font-weight:550;letter-spacing:2px;color:#97a3b7;position:absolute;top:10px;left:0;right:0;text-align:center}.ad-slot b{font-size:13px;font-weight:500;letter-spacing:1px;margin-top:9px}.ad-slot small{font-size:9px;margin-top:4px;color:#a5b1c4}.ad-horizontal{min-height:89px;margin:24px 0}.ad-horizontal .ad-label{top:8px}.ad-horizontal b{font-size:12px}.ad-rail{height:600px;margin-top:30px}.ad-rail b{font-size:22px;font-weight:400}.ad-rail small{max-width:180px;text-align:center;line-height:1.7}.ad-bottom{height:115px}.right-rail{padding-top:3px;min-width:0}.selection-panel{border:1px solid var(--line);border-radius:var(--radius);padding:18px;background:white;box-shadow:var(--shadow)}.panel-heading{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-bottom:20px}.panel-heading h2{font-size:13px;letter-spacing:-.2px;margin:0}.count-badge{background:#edf3ff;color:var(--blue);border-radius:7px;padding:3px 8px;font-size:11px;font-weight:600}.selection-empty{text-align:center;padding:25px 10px 26px}.selection-empty .paper-icon{color:#a8bcea;background:#f2f6ff;width:52px;height:60px;border-radius:12px;display:grid;place-items:center;margin:0 auto 14px;transform:rotate(-7deg)}.selection-empty .paper-icon .icon{height:29px;width:29px}.selection-empty p{font-size:11px;color:#6f7d94;line-height:1.7;margin-bottom:6px}.selection-empty small{font-size:10px;color:#9ba7b9}.mini-list{max-height:265px;overflow:auto;scrollbar-width:thin;margin-bottom:16px}.mini-item{display:flex;align-items:flex-start;gap:9px;border-bottom:1px solid #eff2f7;padding:11px 0}.mini-item:last-child{border:0}.mini-item .qnumber{font-size:10px;color:#9aa7be;margin-top:1px}.mini-item p{font-size:11px;line-height:1.6;margin:0;flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.mini-item button{padding:0;height:20px;width:20px;display:grid;place-items:center;color:#93a1b5}.mini-item button .icon{width:12px;height:12px}.selection-actions{display:grid;gap:9px}.selection-actions .btn{font-size:11px;min-height:37px}.selection-foot{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);padding-top:12px;margin-top:15px}.text-btn{font-size:11px;padding:3px;color:#8693a7}.text-btn:hover{color:var(--blue)}.right-note{font-size:10px;color:#9ba8bc;display:flex;gap:7px;justify-content:center;margin:14px 0}.right-note .icon{height:13px;width:13px}.picker{border:1px solid var(--line);border-radius:var(--radius);background:white;box-shadow:var(--shadow);overflow:hidden}.picker-top{padding:20px 22px 17px;border-bottom:1px solid var(--line)}.picker-title{display:flex;align-items:center;justify-content:space-between;margin-bottom:17px;gap:15px}.picker-title h2{font-size:16px;font-weight:600;margin:0;letter-spacing:-.4px}.picker-title small{font-size:10px;color:#99a5b8;display:block;margin-top:3px}.picker-controls{display:flex;gap:7px;align-items:center}.search-row{display:flex;gap:10px;align-items:center;margin-bottom:15px}.search-field{position:relative;flex:1;min-width:0}.search-field .icon{position:absolute;left:12px;top:12px;color:#91a0b7;width:17px;height:17px}.search-field input{width:100%;padding:11px 12px 11px 38px;background:#f8faff;border:1px solid #e9edf5;border-radius:9px;min-height:41px;font-size:12px}.search-field input::placeholder{color:#a0abbb}.filter-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px}.field label,.field>span{display:block;color:#748198;font-size:10px;font-weight:550;margin:0 0 6px}.field input,.field select,.field textarea{width:100%;border:1px solid #e5eaf2;border-radius:8px;background:white;padding:10px 10px;min-height:39px;font-size:11px}.field textarea{font-size:13px;line-height:1.65}.field select{padding-right:22px}.field input[type=checkbox]{width:auto;min-height:0;vertical-align:middle}.toggle-line{display:flex;align-items:center;gap:8px;font-size:12px;margin-top:10px}.toggle-line input{accent-color:var(--blue)}.results-bar{padding:14px 22px;display:flex;justify-content:space-between;align-items:center;gap:10px;border-bottom:1px solid var(--line);font-size:11px;color:#8b98ac;background:#fff}.results-bar strong{color:#4d5c74;font-weight:550}.results-bar select{border:1px solid #e5eaf2;border-radius:6px;padding:5px 8px;font-size:10px;color:#576680;background:white;margin-left:4px}.results-left{display:flex;align-items:center;gap:15px}.question-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));align-content:start;gap:13px;padding:18px;height:clamp(570px,73vh,1040px);overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:#c9d5e9 #f7f9fc;background:#fbfcfe;position:relative}.question-list.view-list{grid-template-columns:1fr}.qcard{background:white;border:1px solid #e5eaf3;border-radius:12px;padding:17px 17px 13px;min-width:0;display:flex;flex-direction:column;gap:10px;min-height:190px;transition:border .12s,box-shadow .12s}.qcard:hover{border-color:#bdcdeb;box-shadow:0 3px 10px #1a315b05}.qcard.selected{border-color:#91adf3;background:#fdfdff;box-shadow:0 0 0 1px #c4d4ff25}.qcard-top{display:flex;align-items:center;justify-content:space-between;gap:8px}.question-tag{font-size:9px;font-weight:550;color:#6684b5;background:#f0f5fd;padding:3px 7px;border-radius:5px;display:inline-flex;gap:4px;align-items:center;max-width:85%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.question-tag .icon{width:10px;height:10px}.q-select{height:21px;width:21px;display:grid;place-items:center;border:1.5px solid #d9e1ee;border-radius:6px;padding:0;flex:none}.q-select .icon{width:13px;height:13px}.q-select[aria-pressed=true]{background:var(--blue);border-color:var(--blue);color:white}.qprompt{font-size:13px;line-height:1.7;white-space:pre-wrap;overflow-wrap:anywhere;margin:2px 0;flex:1;color:#26334a}.qprompt.numeric{font-size:20px;letter-spacing:.2px;font-weight:500;padding:7px 0}.qcard .diagram{height:75px;width:170px;display:block;max-width:100%}.qchoices{display:flex;gap:6px;flex-wrap:wrap;color:#8090a7;font-size:10px;margin:0 0 3px}.qchoices span{border:1px solid #edf0f6;padding:3px 7px;border-radius:5px;overflow-wrap:anywhere;max-width:100%}.qmeta{display:flex;align-items:center;gap:5px;flex-wrap:wrap;color:#a0acbd;font-size:9px}.qmeta .level-dot{height:4px;width:4px;border-radius:50%;background:#85bfa7}.qmeta .level-dot.medium{background:#ddbc74}.qmeta .level-dot.hard{background:#ce91a1}.qcard-footer{display:flex;align-items:center;justify-content:space-between;border-top:1px solid #f0f3f8;padding-top:10px;gap:5px}.answer-btn{display:flex;align-items:center;gap:5px;font-size:9px;color:#8192ad;padding:2px 0}.answer-btn .icon{width:13px;height:13px}.qcard .btn{min-height:27px;font-size:10px;padding:5px 9px;border-radius:6px}.qcard .btn .icon{height:12px;width:12px}.pagination{padding:15px 19px;display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line);gap:14px;background:#fff}.pagination .btn{font-size:11px;min-height:34px;padding:8px 12px}.page-controls{display:flex;align-items:center;gap:4px}.page-btn{font-size:10px;min-width:27px;height:29px;border:1px solid transparent;border-radius:6px;color:#8796ad}.page-btn.active{background:var(--blue-light);border-color:#dfe9ff;color:var(--blue)}.page-jump{display:flex;align-items:center;gap:5px;font-size:10px;color:#8b98ad}.page-jump input{width:43px;border:1px solid #e1e7f0;border-radius:5px;padding:5px;font-size:10px;text-align:center}.picker-hint{color:#97a4b9;font-size:10px;margin-top:10px;display:flex;align-items:center;gap:6px}.picker-hint .icon{height:12px;width:12px}.selection-sticky{margin:22px 0 0;padding:16px 18px;border:1px solid var(--line);border-radius:12px;display:flex;align-items:center;justify-content:space-between;gap:15px;background:#fff}.selection-sticky strong{font-size:12px;color:#495b78}.selection-sticky small{display:block;color:#98a6bb;font-size:10px;margin-top:3px}.sticky-actions{display:flex;gap:9px;align-items:center}.content-note{display:flex;align-items:flex-start;gap:8px;margin:18px 0;color:#91a0b7;font-size:9px;line-height:1.6}.content-note .icon{height:13px;width:13px;margin-top:2px}.page-footer{margin:30px 0 0;padding:20px 0 5px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;color:#a0acbf;font-size:10px;gap:20px}.footer-links{display:flex;gap:17px;flex-wrap:wrap}.footer-links button{font-size:10px;color:#8a99af;padding:0}.empty-state{grid-column:1/-1;text-align:center;padding:60px 20px;color:#8b99ad;display:flex;align-items:center;flex-direction:column}.empty-state>.icon{width:40px;height:40px;margin:10px 0 20px;color:#a6b9dc}.empty-state h3{font-size:16px;font-weight:550;color:#52617a}.empty-state p{font-size:12px;max-width:400px}.skeleton{height:185px;border-radius:12px;background:linear-gradient(100deg,#f0f3f8 30%,#fafcff 50%,#f0f3f8 70%);background-size:250% 100%;animation:shimmer 1.4s infinite}@keyframes shimmer{to{background-position:-200% 0}}body.picker-expanded{overflow:hidden}.picker-expanded .picker{position:fixed;inset:16px;z-index:60;display:flex;flex-direction:column;box-shadow:0 0 0 200vw #17264066}.picker-expanded .question-list{height:auto;flex:1;grid-template-columns:repeat(3,minmax(0,1fr))}.picker-expanded .question-list.view-list{grid-template-columns:1fr}.picker-expanded .picker-top{flex:none}.picker-expanded .pagination{flex:none}.picker-expanded .filter-grid{grid-template-columns:repeat(5,minmax(0,1fr))}.picker-expanded .qprompt.numeric{font-size:24px}.mobile-menu{display:none}.hide{display:none!important}
/* Full-size, keyboard-friendly dialogs. */
dialog{border:1px solid #e3e8f0;border-radius:19px;padding:0;background:#fff;color:var(--ink);width:min(970px,calc(100vw - 32px));max-height:calc(100dvh - 36px);box-shadow:0 30px 120px #0d204530;overflow:auto}dialog::backdrop{background:#172a4b66;backdrop-filter:blur(4px)}dialog.wide{width:min(1270px,calc(100vw - 32px))}dialog.preview-dialog{width:min(1160px,calc(100vw - 26px))}dialog.small-dialog{width:min(560px,calc(100vw - 32px))}.modal-head{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 26px;border-bottom:1px solid var(--line);position:sticky;top:0;background:#fff;z-index:3}.modal-head h2{font-size:19px;letter-spacing:-.5px;margin:0}.modal-head p{font-size:12px;color:#8a97ab;margin:5px 0 0}.modal-body{padding:25px 26px}.modal-foot{padding:18px 26px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:10px;position:sticky;bottom:0;background:#fff;z-index:3;flex-wrap:wrap}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:17px}.form-grid .span-2{grid-column:1/-1}.form-grid .field label{font-size:11px}.form-grid .field input,.form-grid .field select{font-size:13px;min-height:43px}.muted{color:#8795ab;font-size:12px}.form-help{font-size:11px;color:#8c99af;margin:8px 0 0;line-height:1.7}.notice{background:#f7f9fd;border:1px solid var(--line);border-radius:9px;padding:12px 14px;font-size:11px;color:#7b8ba4;margin:15px 0}.notice.error{color:#a73c3c;background:#fff5f5;border-color:#f3d4d4}.quota-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:15px}.quota-row{display:flex;justify-content:space-between;align-items:center;gap:10px;font-size:12px}.quota-row input{width:68px;border:1px solid var(--line);border-radius:7px;padding:8px}.organizer-grid{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:25px;align-items:start}.organizer-list{display:grid;gap:10px;max-height:65vh;overflow:auto;scrollbar-width:thin;padding-right:4px}.organizer-item{border:1px solid var(--line);border-radius:10px;padding:14px;display:flex;gap:12px}.organizer-item .number{font-weight:600;font-size:12px;color:#9cacbf}.organizer-item-content{flex:1;min-width:0}.organizer-item p{font-size:12px;line-height:1.75;margin-bottom:8px;white-space:pre-wrap;overflow-wrap:anywhere}.organizer-item-actions{display:flex;gap:6px;flex-wrap:wrap}.organizer-item-actions .icon-btn{width:28px;height:28px}.organizer-item.locked{background:#f9fbff;border-color:#cddaff}.organizer-settings{display:grid;gap:14px}.organizer-settings .field label{font-size:11px}.organizer-settings .field input{font-size:12px}.settings-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}.preview-toolbar{padding:14px 22px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:15px;flex-wrap:wrap}.preview-tabs{display:flex;gap:5px;flex-wrap:wrap}.preview-tab{padding:8px 12px;border-radius:7px;font-size:11px;color:#8190a6}.preview-tab.active{background:var(--blue-light);color:var(--blue);font-weight:600}.preview-frame{width:100%;height:68vh;border:0;display:block;background:#edf1f6}.question-detail{font-size:17px;line-height:1.8;white-space:pre-wrap;margin-bottom:20px}.question-detail .diagram{max-width:280px}.answer-box{border-radius:12px;padding:18px;background:#f2f6ff;margin-top:18px;white-space:pre-wrap;overflow-wrap:anywhere}.answer-box h3{font-size:11px;text-transform:uppercase;letter-spacing:1px;color:#6281b4;margin:0 0 10px}.answer-box p{font-size:14px;line-height:1.7;margin-bottom:8px}.library-list{display:grid;gap:12px}.library-card{display:flex;align-items:center;gap:15px;padding:18px;border:1px solid var(--line);border-radius:11px}.library-card>.icon{color:#80a0dc;width:27px;height:27px}.library-card-info{flex:1;min-width:0}.library-card h3{font-size:14px;font-weight:550;margin:0 0 4px;overflow-wrap:anywhere}.library-card p{font-size:11px;color:#96a3b7;margin:0}.library-card-actions{display:flex;gap:7px}.library-card input[type=checkbox]{accent-color:var(--blue);width:17px;height:17px}.preset-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:13px}.preset-card{border:1px solid var(--line);border-radius:13px;padding:18px;display:flex;flex-direction:column;gap:12px}.preset-card .icon{color:#7697d3}.preset-card h3{font-size:13px;line-height:1.6;margin:0}.preset-card p{font-size:11px;color:#91a0b6;margin:0;flex:1}.practice-page{max-width:900px;margin:20px auto 50px}.practice-card{background:white;border:1px solid var(--line);border-radius:17px;padding:35px;box-shadow:var(--shadow);margin-top:25px}.practice-question{font-size:24px;line-height:1.7;white-space:pre-wrap;overflow-wrap:anywhere;margin:20px 0}.practice-options{display:grid;grid-template-columns:1fr 1fr;gap:10px}.practice-option{padding:15px;text-align:left;border:1px solid var(--line);border-radius:9px;background:#fff}.practice-option.active{border-color:var(--blue);background:var(--blue-light)}.practice-input{border:1px solid #ccd6e6;border-radius:10px;padding:14px;max-width:100%;width:100%;font-size:19px}.practice-actions{display:flex;align-items:center;gap:12px;margin-top:25px;flex-wrap:wrap}.practice-progress{height:5px;background:#f0f3f9;border-radius:4px;margin:20px 0}.practice-progress>div{height:100%;background:var(--blue);border-radius:4px;transition:width .2s}.feedback{padding:12px 15px;background:#f2f7ff;border:1px solid #dee9fa;border-radius:9px;font-size:13px;margin-top:18px}.feedback.good{background:#f1faf7;color:#23836b;border-color:#ccebe0}.feedback.bad{background:#fff7ef;color:#a77835;border-color:#f2e1c5}.info-body{max-width:750px;color:#607089;line-height:1.85;font-size:13px}.info-body h3{color:#30435e;font-size:16px;margin-top:24px}.info-body ul{padding-left:20px}.info-body 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@media(max-width:1360px){:root{--side:188px}.sidebar{padding-inline:10px}.main{padding:25px 22px}.brand{min-width:205px}.header-center{display:none}.builder-layout{grid-template-columns:minmax(0,1fr) 235px;gap:18px}.subject-tile{min-width:119px;padding:12px}.filter-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.intro h1{font-size:37px}.qcard{padding:14px;min-height:193px}.qprompt{font-size:12px}.qprompt.numeric{font-size:19px}.picker-top{padding:18px}.question-list{padding:13px;gap:10px}.steps{gap:10px}.step{font-size:10px}.step-line{max-width:25px}.page-controls .page-btn:nth-child(n+5){display:none}.selection-panel{padding:15px}.selection-sticky{padding:13px}.sticky-actions .btn{font-size:10px;padding:9px}.local-pill{display:none}.nav-btn{font-size:11px}}
@media(max-width:1120px){:root{--side:72px}.sidebar{align-items:center;padding-inline:8px;overflow:visible}.side-label,.nav-btn span,.nav-count,.side-note,.side-divider,.nav-subject,.side-bottom .nav-btn{display:none}.nav-btn{justify-content:center;width:45px;height:45px;margin-bottom:9px;padding:0}.nav-btn .icon{width:21px;height:21px}.sidebar>nav{display:grid;justify-items:center}.main{padding:22px}.builder-layout{grid-template-columns:minmax(0,1fr) 228px;gap:18px}.header-center{display:none}.intro h1{font-size:34px}.hero-actions .btn{font-size:11px}.picker-title small{display:none}.question-list{grid-template-columns:1fr}.qcard{min-height:145px}.qprompt.numeric{font-size:22px}.page-controls{display:none}.filter-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.selection-sticky{flex-wrap:wrap}.organizer-grid{grid-template-columns:minmax(0,1fr) 300px}.picker-expanded .question-list{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:860px){.builder-layout{grid-template-columns:1fr}.right-rail{display:none}.main{padding:20px}.header-right .btn{display:none}.app-header{padding-right:18px;gap:10px}.brand{min-width:unset}.brand b{font-size:17px}.brand small{font-size:8px}.intro h1{font-size:34px}.hero-actions{display:none}.question-list{grid-template-columns:repeat(2,minmax(0,1fr));height:70vh;min-height:530px}.organizer-grid{grid-template-columns:1fr}.organizer-settings{border-top:1px solid var(--line);padding-top:20px}.organizer-list{max-height:55vh}.preset-grid{grid-template-columns:repeat(2,1fr)}.selection-sticky{position:sticky;bottom:10px;z-index:20;box-shadow:0 8px 25px #223a5520}.picker-expanded .filter-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.intro p{font-size:12px}.page-kicker{font-size:9px}.app-header{height:68px}.sidebar{top:68px}.step-line{max-width:65px}.step{font-size:11px}.steps{justify-content:space-between}}
@media(max-width:600px){:root{--side:0px}.sidebar{display:none}.app-header{padding:0 15px;height:64px}.brand-mark{width:34px;height:36px;border-radius:10px}.brand b{font-size:15px;letter-spacing:-.4px}.brand small{font-size:7px;letter-spacing:1px}.header-right{gap:4px}.header-right>.icon{display:none}.language-select{font-size:11px;max-width:104px;padding-right:0}.mobile-menu{display:inline-grid}.main{padding:20px 14px}.page-kicker{font-size:8px;letter-spacing:1.1px;margin-bottom:15px}.intro h1{font-size:33px;letter-spacing:-1.3px}.intro p{font-size:11px}.intro{margin-bottom:22px}.subject-strip{margin-right:-14px}.subject-tile{min-width:116px}.subject-tile b{font-size:10px}.subject-tile small{font-size:8px}.steps{gap:5px}.step{font-size:9px;gap:6px;line-height:1.5}.step-num{height:23px;width:23px}.step-line{max-width:18px;min-width:6px}.ad-horizontal{margin:20px 0;min-height:82px}.picker-title h2{font-size:14px}.picker-title{margin-bottom:15px}.picker-top{padding:15px}.picker-controls .view-buttons{display:none}.filter-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.filter-grid .field:last-child{grid-column:1/-1}.field select{font-size:11px;min-height:41px}.search-field input{font-size:11px}.search-row .text-btn{font-size:9px;white-space:nowrap}.results-bar{padding:11px 14px;font-size:10px;gap:5px}.results-left{gap:9px}.results-left .text-btn{font-size:9px}.question-list{grid-template-columns:1fr;height:72vh;min-height:520px;padding:12px;gap:11px}.qcard{padding:16px;min-height:166px}.qprompt{font-size:13px}.qprompt.numeric{font-size:23px}.qmeta{font-size:9px}.qcard .btn{min-height:31px;font-size:11px}.pagination{padding:12px;gap:7px}.page-jump{font-size:9px}.page-jump input{width:35px;padding:5px 3px}.pagination .btn{font-size:10px;padding:8px 9px}.pagination .btn .icon{width:12px}.picker-hint{font-size:9px;line-height:1.6}.selection-sticky{padding:13px;gap:12px;bottom:8px}.selection-sticky>div:first-child{display:flex;justify-content:space-between;width:100%;align-items:center}.selection-sticky small{margin:0;font-size:8px}.selection-sticky strong{font-size:11px}.sticky-actions{width:100%;gap:7px;justify-content:space-between}.sticky-actions .btn{font-size:10px;padding:9px 11px;flex:1}.sticky-actions .save-sticky{display:none}.content-note{font-size:9px}.page-footer{align-items:flex-start;flex-direction:column;gap:14px}.footer-links{gap:13px}.modal-head{padding:18px}.modal-head h2{font-size:16px}.modal-body{padding:18px}.modal-foot{padding:14px 18px}.modal-foot .btn{font-size:11px}.form-grid{grid-template-columns:1fr;gap:14px}.form-grid .span-2{grid-column:auto}.quota-grid{grid-template-columns:1fr}.preset-grid{grid-template-columns:1fr}.library-card{align-items:flex-start;flex-wrap:wrap;padding:14px;gap:10px}.library-card-info{min-width:190px}.library-card-actions{margin-left:28px}.preview-toolbar{padding:11px 15px;gap:10px}.preview-tab{font-size:10px;padding:7px 8px}.preview-frame{height:64vh}.practice-card{padding:21px}.practice-question{font-size:19px}.practice-options{grid-template-columns:1fr}.picker-expanded .picker{inset:6px}.picker-expanded .question-list{grid-template-columns:1fr}.picker-expanded .filter-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.picker-expanded .filter-grid .field:last-child{grid-column:1/-1}.picker-expanded .picker-top{padding:12px}.picker-expanded .picker-title{margin-bottom:9px}.picker-expanded .filter-grid .field input,.picker-expanded .filter-grid .field select{min-height:33px;padding:6px}.picker-expanded .search-row{margin-bottom:10px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
@media print{.app-header,.sidebar,.main,.ad-slot,#toast,.modal-head,.modal-foot,.preview-toolbar{display:none!important}dialog{display:block;border:0;box-shadow:none;width:100%;max-height:none;margin:0}dialog::backdrop{display:none}.preview-frame{height:100vh}.skip-link{display:none}}
.header-right [data-action=menu]{display:none}@media(max-width:600px){.header-right [data-action=menu]{display:inline-grid}}