:root{color-scheme:dark;--bg:#10171c;--panel:#1a252c;--panel2:#202e36;--line:#34454e;--text:#f1f3ed;--muted:#a3b1b8;--green:#4bdd87;--greenbg:#163d2c;--red:#ff8b8f;--redbg:#482b31;--amber:#f0cb83}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.65 system-ui,-apple-system,Segoe UI,sans-serif}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button,a,input,select,textarea,summary{outline-offset:5px}button,.button{cursor:pointer}button:disabled{opacity:.4;cursor:not-allowed}button,.button{border:1px solid var(--line);background:var(--panel2);color:var(--text);border-radius:10px;padding:10px 19px;font-weight:650;line-height:1.4;display:inline-flex;align-items:center;justify-content:center;gap:9px}button:hover,.button:hover{border-color:var(--green)}.primary{background:var(--green);color:#10291c;border-color:var(--green);box-shadow:0 3px 0 #238650}.danger{background:#d85e69;color:#fff;border-color:#f28e98}.text-button{border:0;background:none;padding:0;color:var(--muted);font-weight:500;cursor:pointer;box-shadow:none}.text-button:hover{color:var(--green)}.skip{position:absolute;left:15px;top:-80px;background:var(--green);color:var(--bg);padding:10px;z-index:10}.skip:focus{top:10px}.top{border-bottom:1px solid var(--line);background:#111b20}.top-inner{max-width:1230px;padding:18px 28px;margin:auto;display:flex;align-items:center;gap:35px}.brand{display:flex;gap:12px;align-items:center;white-space:nowrap;font:700 20px Georgia,serif;line-height:1.3}.brand small{display:block;font:10px system-ui;letter-spacing:3px;color:var(--muted);margin-top:4px}.brand-mark{position:relative;font:700 34px Georgia,serif;background:var(--green);color:#10291c;width:43px;height:43px;border-radius:12px;text-align:center;line-height:1.05}.brand-mark span{font:16px system-ui;position:absolute;right:3px;bottom:2px}.top nav{display:flex;gap:5px;flex:1;flex-wrap:wrap}.top nav a{font-size:12px;letter-spacing:.3px;font-weight:700;padding:9px 13px;color:var(--muted);border:1px solid transparent;border-radius:10px}.top nav a.active{border-color:var(--green);background:var(--greenbg);color:var(--green)}#error-count{font-size:10px;background:#3a2a31;color:#ffadb1;border-radius:5px;padding:1px 5px;margin-left:4px}.top-count{font-size:11px;color:var(--muted);text-align:right;line-height:1.6}.top-count b{display:block;color:var(--amber);font-size:19px}main{max-width:1120px;margin:38px auto 75px;padding:0 28px;min-height:60vh}h1,h2,h3{font-family:Georgia,Times New Roman,serif;line-height:1.2;letter-spacing:-.4px}h1{font-size:36px;margin:0 0 10px}h2{font-size:24px;margin:0 0 13px}h3{font-size:22px;margin:0 0 9px}p{margin:0 0 16px}.muted,.meta{color:var(--muted)}.meta{font-size:12px}.eyebrow{font-size:10px;letter-spacing:2px;text-transform:uppercase;font-weight:750;color:var(--green);margin:0 0 12px}.page-head{padding-bottom:27px;margin-bottom:30px;border-bottom:1px solid var(--line)}.page-head p{color:var(--muted);margin:0;max-width:680px}.row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.between{justify-content:space-between}.quick-grid{display:grid;grid-template-columns:1fr 1fr;gap:25px;margin-bottom:38px}.quick{border:1px solid var(--line);border-radius:20px;overflow:hidden;background:var(--panel)}.quick.green{background:radial-gradient(ellipse at 0 0,#214b36 0,transparent 70%),var(--panel)}.quick.red{background:radial-gradient(ellipse at 0 0,#4b2b35 0,transparent 70%),var(--panel)}.quick-top{padding:23px 25px;display:flex;gap:17px;align-items:center}.quick-icon{font-size:33px;color:var(--amber);line-height:1}.quick h2{font-size:24px;margin:0 0 3px}.quick p{font-size:13px;margin:0;color:var(--muted)}.quick-bottom{padding:15px 25px;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center}.quick-bottom strong{font-size:26px;color:var(--green);margin-right:7px;line-height:1}.quick.red strong{color:var(--red)}.quick-bottom span{font-size:12px}.section-title{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px}.section-title h2{margin:0}.section-title a{font-size:12px;color:var(--green);font-weight:600}.subjects{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.subject{position:relative;display:flex;flex-direction:column;border:1px solid var(--line);border-radius:18px;background:radial-gradient(ellipse at 100% 0,#34423155 0,transparent 65%),var(--panel);overflow:hidden;min-height:220px}.subject-main{padding:25px;flex:1}.subject h3{font-size:23px;max-width:220px;min-height:54px;padding-right:22px}.subject-icon{position:absolute;right:20px;top:24px;color:var(--amber);font-size:27px}.subject p{font-size:12px;color:var(--muted);margin:12px 0 0}.subject-bottom{padding:13px 24px;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;font-size:12px}.subject-bottom a{color:var(--green);font-weight:750}.progress-track{height:4px;background:#35434a;border-radius:3px;margin-top:15px;overflow:hidden}.progress-track span{display:block;height:100%;background:var(--green)}.all-link{display:block;margin:28px 0;text-align:center;color:var(--green);font-weight:650}.filters{border:1px solid var(--line);border-radius:15px;background:var(--panel);margin-bottom:25px}.filters>summary{padding:14px 20px;cursor:pointer;font-size:13px;color:var(--muted)}.filters form{padding:6px 20px 20px;display:grid;grid-template-columns:repeat(3,1fr);gap:15px}label{font-size:12px;font-weight:650;color:var(--muted)}input,select,textarea{display:block;width:100%;margin-top:6px;background:#111c23;color:var(--text);border:1px solid var(--line);border-radius:8px;padding:10px 12px;font-size:14px}input:focus,select:focus,textarea:focus{border-color:var(--green)}.filter-actions{align-self:end;display:flex;gap:8px;flex-wrap:wrap}.question-top{margin-bottom:16px}.question-top .meta{max-width:75%}.question-card{border:1px solid var(--line);background:var(--panel);border-radius:19px;padding:30px 36px}.question-title{display:flex;justify-content:space-between;align-items:center;gap:15px;border-bottom:1px solid var(--line);padding-bottom:19px;margin-bottom:23px}.question-title h2{margin:2px 0 0;font-size:25px}.badge{font-size:10px;color:var(--amber);text-transform:uppercase;letter-spacing:.5px}.favorite{background:none;border-color:var(--line);padding:9px 12px;font-size:12px;flex-shrink:0}.favorite[aria-pressed=true]{color:var(--amber);border-color:var(--amber)}.context,.original{margin-bottom:24px;background:#111c22;border-radius:10px;padding:14px 17px;border:1px solid var(--line)}summary{cursor:pointer;font-size:12px;color:var(--muted);font-weight:600}details[open]>summary{margin-bottom:16px}.question-stem{font-size:17px;line-height:1.8;margin:20px 0}.question-stem p{white-space:pre-wrap}.original img,.context img,.feedback img{display:block;max-width:100%;height:auto;max-height:none;background:#fff;border-radius:3px;margin:8px auto}.original img{width:auto}.image-status{display:block;font-size:12px;color:var(--muted);padding:10px 0}.image-status button{font-size:11px;margin-left:8px}.image-error{color:var(--red)}fieldset{padding:0;border:0;margin:18px 0}legend{font-size:12px;color:var(--muted);margin-bottom:12px}.option{position:relative;display:flex;align-items:flex-start;gap:14px;border:1px solid var(--line);border-radius:10px;padding:15px 17px;margin:10px 0;color:var(--text);font-size:15px;line-height:1.65;cursor:pointer;font-weight:400;background:#172229}.option:hover{border-color:#82958d}.option:has(input:checked){border-color:var(--green);background:#203d30}.option input{width:17px;height:17px;margin:6px 0 0;flex-shrink:0;accent-color:var(--green)}.letter{display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);height:27px;min-width:27px;border-radius:6px;font-weight:700;font-size:12px;margin-top:1px}.option.right{border-color:var(--green);background:var(--greenbg)}.option.wrong{border-color:var(--red);background:var(--redbg)}.option span:last-child{flex:1}.question-actions{display:flex;justify-content:space-between;gap:15px;align-items:center;margin-top:22px;flex-wrap:wrap}.feedback{padding:20px;border:1px solid var(--green);background:var(--greenbg);border-radius:10px;margin:22px 0}.feedback.wrong{border-color:var(--red);background:var(--redbg)}.feedback h3{font-size:23px}.feedback p:last-child{margin-bottom:0}.feedback a{color:var(--green);text-decoration:underline}.notice{padding:12px 15px;border-left:3px solid var(--amber);background:#3c342633;color:var(--amber);font-size:12px;margin:15px 0}.pagination{display:flex;justify-content:space-between;gap:12px;margin:22px 0;align-items:center}.pagination span{font-size:12px;color:var(--muted)}.notes{margin-top:25px;border-top:1px solid var(--line);padding-top:20px}.notes textarea{min-height:100px}.question-map{margin-top:20px}.q-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(39px,1fr));gap:7px;margin-top:15px}.q-grid button{padding:8px 3px;font-size:11px;border-radius:7px}.q-grid button.current{border-color:var(--green);box-shadow:0 0 0 1px var(--green)}.q-grid button.done{background:var(--greenbg);color:var(--green)}.q-grid button.failed{background:var(--redbg);color:var(--red)}.empty{padding:50px 25px;text-align:center;border:1px dashed var(--line);border-radius:16px}.empty p{color:var(--muted)}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:30px}.stat{padding:22px;border:1px solid var(--line);border-radius:15px;background:var(--panel)}.stat strong{display:block;font:700 36px Georgia,serif;color:var(--green)}.stat span{font-size:12px;color:var(--muted)}table{width:100%;border-collapse:collapse;font-size:13px}td,th{text-align:left;padding:15px 10px;border-bottom:1px solid var(--line)}th{font-size:11px;text-transform:uppercase;color:var(--muted);letter-spacing:1px}.paper-list{display:grid;gap:20px}.paper{padding:25px;border:1px solid var(--line);border-radius:16px;background:var(--panel)}.paper h2{font-size:22px;margin:4px 0 10px}.paper p{font-size:13px;color:var(--muted)}.paper a{font-size:12px;color:var(--green);text-decoration:underline}.session-head{padding:18px 22px;border:1px solid var(--line);border-radius:12px;background:var(--panel);margin-bottom:22px}.session-head p{margin:0;color:var(--muted);font-size:12px}.session-head strong{color:var(--green)}.result{margin-bottom:25px}.result strong{font:700 45px Georgia,serif;color:var(--green)}.bottom-note{font-size:12px;color:var(--muted);margin-top:22px}footer{max-width:1120px;margin:0 auto;padding:25px 28px;border-top:1px solid var(--line);display:flex;align-items:center;gap:20px;flex-wrap:wrap;color:var(--muted);font-size:11px}footer>span{font-family:Georgia,serif;color:var(--text);font-size:15px}footer div{display:flex;gap:17px;margin-left:auto;flex-wrap:wrap}footer small{display:block;width:100%;font-size:10px}footer button,footer label{font-size:11px;font-weight:400}#toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);padding:12px 20px;background:var(--green);color:#10291c;border-radius:9px;font-size:13px;font-weight:650;z-index:20;max-width:90vw;display:none}#toast.show{display:block}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(min-width:1000px){main.practice{max-width:980px}}@media(max-width:900px){.top-inner{gap:18px;flex-wrap:wrap}.top nav{order:3;width:100%}.top-count{margin-left:auto}.subjects{grid-template-columns:repeat(2,1fr)}}@media(max-width:620px){.top-inner{padding:16px 18px;gap:12px}.top nav{gap:3px;justify-content:space-between}.top nav a{font-size:10px;padding:8px}.top-count{font-size:10px}.brand{font-size:19px}main{margin-top:28px;padding:0 18px}h1{font-size:30px}.quick-grid{grid-template-columns:1fr;gap:17px;margin-bottom:30px}.quick-top{padding:20px}.quick-bottom{padding:14px 20px}.subjects{grid-template-columns:1fr;gap:16px}.subject{min-height:180px}.subject h3{min-height:0;max-width:85%}.subject-main{padding:22px}.filters form{grid-template-columns:1fr 1fr;padding:6px 15px 18px}.filters label:last-of-type{grid-column:1/-1}.filter-actions{grid-column:1/-1}.question-card{padding:23px 17px}.question-title h2{font-size:23px}.question-title .eyebrow{font-size:9px}.question-title{gap:8px}.favorite{padding:8px;font-size:11px}.question-stem{font-size:16px}.option{padding:13px 11px;gap:9px;font-size:14px}.letter{min-width:25px;height:25px}.question-actions{gap:12px}.question-actions .primary{width:100%}.stats{gap:10px}.stat{padding:15px 12px}.stat strong{font-size:29px}.stat span{font-size:10px}.meta{font-size:11px}.pagination button{padding:10px 13px}footer{padding:23px 18px}footer div{margin-left:0}td,th{padding:12px 5px;font-size:11px}.paper{padding:20px}.section-title{align-items:flex-start}.section-title a{font-size:11px;text-align:right}.session-head{padding:16px}.session-head .row{align-items:flex-start}.session-head button{font-size:12px}button,.button{min-height:43px}.text-button{min-height:auto}}