:root{--bg:#0f1020;--card:#1a1b33;--card2:#23244a;--txt:#eef0ff;--mut:#a3a6cc;--acc:#ffb547;--acc2:#7c5cff;--ok:#2ecc8f;--bad:#ff5d73;--r:18px}*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,sans-serif;background:radial-gradient(circle at 20% -10%,#2b1f5c,transparent 50%),var(--bg);color:var(--txt);min-height:100vh}a{color:var(--acc)}h1,h2,h3{font-family:Fraunces,Georgia,serif;margin:.3em 0}.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 5vw;position:-webkit-sticky;position:sticky;top:0;background:#0f1020dd;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:10;border-bottom:1px solid #ffffff12}.logo{font-weight:800;font-size:1.3rem;text-decoration:none;color:var(--txt)}.brand{font-family:Fraunces,Georgia,serif}.nav nav{display:flex;gap:4px;flex-wrap:wrap}.nav nav a{color:var(--mut);text-decoration:none;padding:8px 12px;border-radius:10px;font-size:.92rem}.nav nav a.on,.nav nav a:hover{background:var(--card2);color:var(--txt)}.burger{display:none;background:none;border:0;color:var(--txt);font-size:1.6rem}.banner{text-align:center;font-size:.8rem;background:#ffb54722;color:var(--acc);padding:6px}main{max-width:1150px;margin:0 auto;padding:28px 5vw 60px}footer{text-align:center;color:var(--mut);font-size:.8rem;padding:30px}.btn{display:inline-block;border:0;cursor:pointer;background:linear-gradient(135deg,var(--acc),#ff7a59);color:#1a1020;font-weight:800;padding:12px 22px;border-radius:12px;text-decoration:none;font-size:1rem;transition:.15s}.btn:hover{transform:translateY(-2px);box-shadow:0 8px 24px #ffb54744}.btn.ghost{background:var(--card2);color:var(--txt)}.btn.sm{padding:8px 14px;font-size:.85rem}.btn:disabled{opacity:.5;cursor:default;transform:none}.card{background:var(--card);border:1px solid #ffffff10;border-radius:var(--r);padding:22px}.grid{display:grid;grid-gap:18px;gap:18px}.g2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}.g3{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}.g4{grid-template-columns:repeat(auto-fill,minmax(180px,1fr))}.mut{color:var(--mut)}.big{font-size:2.6rem;font-weight:800}.pill{display:inline-block;padding:4px 10px;border-radius:99px;background:var(--card2);font-size:.75rem;color:var(--mut)}.ai{background:linear-gradient(135deg,#7c5cff55,#28d7ff33);color:#cfc6ff}.hero{display:grid;grid-template-columns:1.2fr 1fr;grid-gap:30px;gap:30px;align-items:center;padding:30px 0 50px}.hero h1{font-size:clamp(2.4rem,5vw,4rem);line-height:1.05}.hero h1 em{color:var(--acc);font-style:normal}.hero-art{position:relative;height:340px}.float{position:absolute;border-radius:14px;padding:16px;box-shadow:0 20px 50px #0008}.cover{width:100%;aspect-ratio:2/3;border-radius:10px;display:flex;align-items:flex-end;padding:10px;font-family:Fraunces;font-weight:900;color:#fff;text-shadow:0 2px 6px #0007;font-size:1rem}.bar{height:12px;background:var(--card2);border-radius:99px;overflow:hidden}.bar i{display:block;height:100%;background:linear-gradient(90deg,var(--acc2),var(--acc))}.steps .n{width:40px;height:40px;border-radius:12px;background:var(--acc2);display:grid;place-items:center;font-weight:800;margin-bottom:10px}.botw{background:linear-gradient(135deg,#3b2a7a,#1a1b33);display:flex;gap:20px;align-items:center}.botw .cover{width:120px;flex:none}.cd{display:flex;gap:8px}.cd div{background:#0006;border-radius:10px;padding:8px 10px;text-align:center;min-width:56px}.cd b{display:block;font-size:1.4rem}input.search{width:100%;padding:14px 18px;border-radius:12px;border:1px solid #ffffff22;background:var(--card);color:var(--txt);font-size:1rem;margin-bottom:18px}.book{display:flex;flex-direction:column;gap:8px}.book .cover{font-size:.95rem}.tabs{display:flex;gap:6px;margin:14px 0}.tabs button{background:var(--card2);color:var(--mut);border:0;padding:9px 16px;border-radius:10px;cursor:pointer;font-weight:600}.tabs button.on{background:var(--acc2);color:#fff}table{width:100%;border-collapse:collapse}td,th{padding:12px 10px;text-align:left;border-bottom:1px solid #ffffff0d}th{color:var(--mut);font-size:.8rem;text-transform:uppercase}tr.me{background:#7c5cff33}tr.champ{background:linear-gradient(90deg,#ffb54733,transparent)}.champion{text-align:center;background:linear-gradient(135deg,#ffb54733,#7c5cff33);border:1px solid #ffb54766}.crown{font-size:3rem;animation:bob 2s infinite}@keyframes bob{50%{transform:translateY(-6px)}}.opt{display:block;width:100%;text-align:left;padding:14px 16px;margin:8px 0;border-radius:12px;border:1px solid #ffffff1a;background:var(--card2);color:var(--txt);font-size:1rem;cursor:pointer}.opt:hover{border-color:var(--acc2)}.opt.ok{background:#2ecc8f33;border-color:var(--ok)}.opt.bad{background:#ff5d7333;border-color:var(--bad)}.timer{font-size:1.4rem;font-weight:800;color:var(--acc)}.badge{text-align:center}.badge .e{font-size:2.4rem}.badge.off{opacity:.3;filter:grayscale(1)}.streak{display:flex;gap:6px}.streak span{flex:1 1;height:34px;border-radius:8px;background:var(--card2);display:grid;place-items:center;font-size:.7rem}.streak span.on{background:var(--acc)}.toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:var(--ok);color:#062;padding:12px 20px;border-radius:12px;font-weight:700;z-index:99}@media(max-width:820px){.hero{grid-template-columns:1fr}.hero-art{display:none}.burger{display:block}.nav nav{display:none;position:absolute;top:60px;left:0;right:0;background:var(--bg);flex-direction:column;padding:10px}body.menu .nav nav{display:flex}.botw{flex-direction:column;text-align:center}.hide-m{display:none}}.nav nav form{display:inline}.nav nav button.linkish{background:none;border:0;color:var(--mut);padding:8px 12px;border-radius:10px;font-size:.92rem;cursor:pointer;font-family:inherit}.nav nav button.linkish:hover{background:var(--card2);color:var(--txt)}label{display:block;color:var(--mut);font-size:.9rem}select.search{-webkit-appearance:auto;-moz-appearance:auto;appearance:auto}.err{background:#ff5d7322;color:var(--bad)}.err,.okmsg{padding:10px 14px;border-radius:10px;margin:10px 0}.okmsg{background:#2ecc8f22;color:var(--ok)}.or{display:flex;align-items:center;gap:10px;color:var(--mut);margin:14px 0}.or:after,.or:before{content:"";flex:1 1;height:1px;background:#ffffff22}.review{font-size:.9rem;text-align:left}.review li{margin:6px 0}.admin td,.admin th{font-size:.85rem}.school{--s-acc:#ffd23f;--s-pink:#ff6fb5;--s-blue:#4cc9f0;--s-green:#3ddc97;max-width:860px;margin:0 auto}.s-title,.school h1,.school 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.s-pill{background:#ffffff33;color:#fff}.s-pill.ok{background:#3ddc9733;color:var(--s-green)}.s-h{font-size:1.5rem;margin:18px 0 12px}.s-title{font-size:clamp(1.8rem,6vw,2.4rem);margin:8px 0 14px;line-height:1.1}.s-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));grid-gap:14px;gap:14px}.s-tile{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;min-height:132px;border-radius:24px;color:#1a1020;text-decoration:none;font-size:1.35rem;box-shadow:0 8px 22px #0006;transition:.15s;font-family:Baloo\ 2,Inter,sans-serif}.s-tile:active,.s-tile:hover{transform:translateY(-3px) scale(1.02)}.s-tile-emoji{font-size:2.4rem}.s-tile small{font-size:.8rem;background:#fff9;border-radius:99px;padding:2px 10px}.s-list{display:flex;flex-direction:column;gap:10px}.s-item{display:flex;align-items:center;gap:14px;min-height:64px;padding:14px 16px;border-radius:18px;background:var(--card);border:2px solid #ffffff12;color:var(--txt);text-decoration:none;transition:.15s}.s-item:hover{border-color:var(--s-acc);transform:translateX(3px)}.s-item.tall{min-height:88px}.s-item .grow{flex:1 1;display:flex;flex-direction:column;gap:3px}.s-item b{font-size:1.08rem}.s-item.passed{border-color:#3ddc9766;background:linear-gradient(90deg,#3ddc971f,var(--card))}.s-icon{font-size:2rem;width:52px;height:52px;place-items:center;border-radius:16px;background:#ffffff12}.s-icon,.s-num{display:grid;flex:none}.s-num{width:42px;height:42px;border-radius:50%;place-items:center;font-weight:800;background:linear-gradient(135deg,var(--s-blue),#7c5cff);color:#fff}.s-item.passed .s-num{background:var(--s-green);color:#063;font-size:1.3rem}.s-go{font-weight:800;color:var(--s-acc);font-size:1.1rem}.s-meter{height:8px;border-radius:99px;background:#ffffff14;overflow:hidden;margin-top:4px}.s-meter i{display:block;height:100%;background:linear-gradient(90deg,var(--s-green),var(--s-acc))}.s-tabs{display:flex;gap:8px;margin:0 0 16px}.s-tabs a{flex:1 1;text-align:center;padding:12px 8px;border-radius:14px;background:var(--card2);color:var(--mut);text-decoration:none;font-weight:800}.s-tabs a.on{background:var(--s-acc);color:#1a1020}.s-tabs.scroll{overflow-x:auto}.s-tabs.scroll a{flex:none;min-width:56px}.s-crumbs{font-size:.85rem;margin-bottom:10px;display:flex;flex-wrap:wrap;gap:2px}.s-crumbs,.s-crumbs a{color:var(--mut)}.s-crumbs b{color:var(--txt)}.s-crumbs .sep{margin:0 6px}.s-card{background:var(--card);border:2px solid #ffffff10;border-radius:22px;padding:20px;margin-bottom:14px}.s-card h2{font-size:1.4rem;margin-top:0}.s-card p{font-size:1.06rem;line-height:1.6}.pre{white-space:pre-line}.s-card.intro{background:linear-gradient(135deg,#4cc9f022,#7c5cff22);border-color:#4cc9f055;font-size:1.1rem}.s-card.examples{border-color:#ffd23f44}.s-example{background:#0003;border-radius:14px;padding:12px 14px;margin:10px 0;line-height:1.55}.s-example .sol{margin-top:6px;color:#c9f7df}.s-card.keys{background:linear-gradient(135deg,#ffd23f1f,#ff6fb51a);border-color:#ffd23f55}.s-card.keys li{margin:6px 0;font-size:1.04rem}.s-card.try{border-style:dashed;border-color:#3ddc9788}.s-cta{text-align:center;margin:22px 0}.btn.s-btn{border-radius:16px;min-height:52px;padding:14px 24px;font-size:1.05rem;background:linear-gradient(135deg,var(--s-acc),#ff9f1c)}.btn.s-btn.ghost{background:var(--card2);color:var(--txt)}.btn.s-btn.xl{font-size:1.3rem;padding:18px 34px;min-height:64px;box-shadow:0 10px 30px #ffd23f44}.s-row{display:flex;justify-content:space-between;align-items:center;gap:8px}.s-row.wrap{flex-wrap:wrap;justify-content:flex-start}.s-row.center{justify-content:center;margin-top:14px}.s-dots{display:flex;gap:6px;flex-wrap:wrap;margin:14px 0 6px}.s-dots button{width:36px;height:36px;border-radius:50%;border:2px solid #ffffff22;background:transparent;color:var(--mut);font-weight:800;cursor:pointer}.s-dots button.done{background:#7c5cff55;color:#fff}.s-dots button.on{border-color:var(--s-acc);color:var(--s-acc)}.s-q{font-size:1.45rem;line-height:1.3}.s-opt{display:flex;align-items:center;gap:12px;width:100%;text-align:left;min-height:60px;padding:12px 16px;margin:10px 0;border-radius:18px;border:2px solid #ffffff1f;background:var(--card2);color:var(--txt);font-size:1.08rem;cursor:pointer;transition:.12s;font-family:inherit}.s-opt b{width:36px;height:36px;flex:none;border-radius:12px;display:grid;place-items:center;background:#ffffff14}.s-opt:hover{border-color:var(--s-blue)}.s-opt.picked{border-color:var(--s-acc);background:#ffd23f22}.s-opt.picked b{background:var(--s-acc);color:#1a1020}.s-result{text-align:center;border-radius:28px;padding:26px 18px;margin-bottom:10px}.s-result.pass{background:linear-gradient(135deg,#3ddc9744,#ffd23f33);border:2px solid #3ddc9788}.s-result.retry{background:linear-gradient(135deg,#ff6fb533,#7c5cff33);border:2px solid #ff6fb577}.s-stamp{display:inline-block;font-family:Baloo\ 2,sans-serif;font-weight:800;font-size:2.2rem;letter-spacing:.06em;padding:4px 22px;border-radius:14px;margin:6px 0;transform:rotate(-3deg)}.pass .s-stamp{background:var(--s-green);color:#053}.retry .s-stamp{background:var(--s-pink);color:#fff}.s-score{font-size:2.6rem;font-weight:800}.s-score small{font-size:1.1rem;color:var(--mut)}.s-result p{font-size:1.08rem}.s-review{padding-left:0;list-style:none;counter-reset:q}.s-review li{background:var(--card);border-radius:18px;padding:14px 16px;margin:10px 0;border-left:6px solid var(--s-green)}.s-review li.bad{border-left-color:var(--s-pink)}.s-review .q{font-weight:700;font-size:1.04rem}.s-review .mark{display:inline-grid;place-items:center;width:26px;height:26px;border-radius:50%;background:var(--s-green);color:#053;margin-right:6px}.s-review li.bad .mark{background:var(--s-pink);color:#fff}.s-review .yours{color:#ffb3d4;margin-top:6px}.s-review .right{color:#c9f7df;margin-top:4px}.s-review .why{color:var(--mut);margin-top:6px;font-size:.95rem}.s-board{list-style:none;padding:0;margin:8px 0}.s-board li{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:14px;margin:6px 0;background:#ffffff08}.s-board li.me{background:#7c5cff33}.s-board .rank{width:32px;text-align:center;font-weight:800}.s-board .name{flex:1 1}.s-board .pts{font-weight:800;color:var(--s-acc)}@media(max-width:520px){.s-grid{grid-template-columns:repeat(2,1fr)}.s-tile{min-height:116px}.s-q{font-size:1.25rem}.s-row .btn.s-btn{flex:1 1;padding:14px 10px}}.s-read{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin:0 0 14px}.s-read.on{position:-webkit-sticky;position:sticky;top:68px;z-index:5;width:-moz-fit-content;width:fit-content;max-width:100%;padding:8px;border-radius:20px;background:#0f1020d9;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid #ffffff1a;box-shadow:0 8px 24px #0007}.s-read .btn.s-btn{min-height:52px}.s-read .read-main{background:linear-gradient(135deg,var(--s-blue),#7c5cff);color:#fff}.s-card.reading{border-color:var(--s-acc);box-shadow:0 0 0 3px #ffd23f55,0 10px 30px #ffd23f22;transition:box-shadow .3s}.s-video-frame,.s-video-thumb{position:relative;display:block;width:100%;aspect-ratio:16/9;border-radius:16px;overflow:hidden;border:0;padding:0;background:#000;cursor:pointer}.s-video-thumb img{width:100%;height:100%;object-fit:cover;display:block}.s-video-frame iframe{position:absolute;inset:0;width:100%;height:100%;border:0}.s-video-thumb .play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:76px;height:76px;border-radius:50%;background:#ff3d3dee;color:#fff;font-size:2rem;display:grid;place-items:center;box-shadow:0 8px 24px #0008;padding-left:6px}.s-video-title{margin:10px 0 6px;font-size:1rem!important;line-height:1.4!important}.s-video-more{display:flex;flex-direction:column;gap:8px;margin:10px 0}.s-video-mini{display:flex;gap:10px;align-items:center;text-align:left;background:#ffffff0a;border:2px solid #ffffff12;border-radius:14px;padding:6px;color:var(--txt);cursor:pointer;font-family:inherit;font-size:.9rem}.s-video-mini img{width:110px;aspect-ratio:16/9;object-fit:cover;border-radius:10px;flex:none}.s-video-admin{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:10px;padding-top:10px;border-top:1px dashed #ffffff22;font-size:.85rem}.jamb{max-width:1100px;margin:0 auto}.jamb.narrow{max-width:860px}.jamb.wide{max-width:1240px}.small{font-size:.82rem}.jb-hero{border-radius:24px;padding:30px 24px;background:linear-gradient(135deg,#13294b,#1a1b33 60%,#3a2a12);border:1px solid #ffb54744}.jb-hero h1{font-size:clamp(2.2rem,6vw,3.4rem);margin:.15em 0}.jb-hero h1 span{color:var(--acc)}.jb-hero p{max-width:640px;font-size:1.08rem;color:#d9dcff}.jb-cta{display:flex;gap:10px;flex-wrap:wrap;margin:16px 0}.btn.jb-btn{background:linear-gradient(135deg,#2ecc8f,#1fa673);color:#04140c}.jb-tag{display:inline-block;font-size:.72rem;font-weight:800;letter-spacing:.04em;text-transform:uppercase;padding:3px 8px;border-radius:8px;background:#ffffff14;color:var(--mut);margin-left:6px;vertical-align:middle}.jb-tag.bad{background:#ff5d7333;color:var(--bad)}.jb-disclaimer{font-size:.85rem;color:#ffd9a0;background:#ffb5471a;border:1px solid #ffb54744;border-radius:12px;padding:10px 14px;margin:14px 0}.jb-card{background:var(--card);border:1px solid #ffffff12;border-radius:18px;padding:20px;margin-bottom:14px}.jb-chips{display:flex;flex-wrap:wrap;gap:8px}.jb-chip{padding:10px 14px;border-radius:12px;background:var(--card);border:1px solid #ffffff14;color:var(--txt);text-decoration:none}.jb-chip:hover{border-color:var(--acc)}.jb-seg{display:grid;grid-template-columns:1fr 1fr;grid-gap:8px;gap:8px;margin-bottom:12px}.jb-seg button{padding:12px;border-radius:14px;border:2px solid #ffffff1a;background:var(--card2);color:var(--txt);font-weight:800;cursor:pointer;font-family:inherit;font-size:1rem}.jb-seg button small{display:block;font-weight:400;color:var(--mut);font-size:.8rem}.jb-seg button.on{border-color:var(--ok);background:#2ecc8f1f}.jb-subjects{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));grid-gap:8px;gap:8px;margin-bottom:14px}.jb-subj{display:flex;justify-content:space-between;align-items:center;gap:8px;min-height:52px;padding:10px 14px;border-radius:12px;border:2px solid #ffffff14;background:var(--card2);color:var(--txt);cursor:pointer;font-family:inherit;font-size:.95rem;text-align:left}.jb-subj.on{border-color:var(--ok);background:#2ecc8f1a}.jb-subj.locked{cursor:default;margin-bottom:6px}.jb-subj:disabled{opacity:.45;cursor:not-allowed}.jb-ready{font-size:.75rem;color:var(--ok);white-space:nowrap}.jb-ready.no{color:var(--acc)}.jb-list{display:flex;flex-direction:column;gap:8px}.jb-row{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:14px 16px;border-radius:14px;background:var(--card);border:1px solid #ffffff12;color:var(--txt);text-decoration:none}a.jb-row:hover{border-color:var(--acc)}.jb-row.topic{flex-wrap:wrap}.jb-row.topic>div{flex:1 1;min-width:220px}.jb-sizes{display:flex;gap:6px;align-items:center}.cbt{background:#0b0c18;border:1px solid #ffffff14;border-radius:18px;overflow:hidden}.cbt-top{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:12px 16px;background:#13294b;border-bottom:1px solid #ffffff14}.cbt-timer{white-space:nowrap;font-feature-settings:"tnum";font-variant-numeric:tabular-nums;font-weight:800;font-size:1.3rem;background:#0006;padding:6px 12px;border-radius:10px}.cbt-timer.low{color:#fff;background:var(--bad);animation:bob 1s infinite}.cbt-timer small{font-size:.65rem;color:var(--mut)}.cbt-tabs{display:flex;overflow-x:auto;background:#101226;border-bottom:1px solid #ffffff14}.cbt-tabs button{flex:none;padding:12px 16px;border:0;border-bottom:3px solid transparent;background:none;color:var(--mut);font-weight:700;cursor:pointer;font-family:inherit;font-size:.92rem}.cbt-tabs button small{margin-left:6px;font-weight:400;opacity:.8}.cbt-tabs button.on{color:var(--txt);border-bottom-color:var(--ok);background:#2ecc8f12}.cbt-body{display:grid;grid-template-columns:1fr 300px;grid-gap:0;gap:0}.cbt-q{padding:20px;min-height:420px}.cbt-qhead{display:flex;justify-content:space-between;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:8px}.cbt-text{font-size:1.12rem;line-height:1.6;white-space:pre-line}.cbt-opts{display:flex;flex-direction:column;gap:8px;margin:14px 0}.cbt-opt{display:flex;gap:12px;align-items:center;text-align:left;min-height:52px;padding:10px 14px;border-radius:12px;border:2px solid #ffffff1a;background:var(--card);color:var(--txt);cursor:pointer;font-size:1rem;font-family:inherit}.cbt-opt b{width:32px;height:32px;flex:none;display:grid;place-items:center;border-radius:50%;border:2px solid #ffffff33}.cbt-opt:hover{border-color:#ffffff44}.cbt-opt.on{border-color:var(--ok);background:#2ecc8f1f}.cbt-opt.on b{background:var(--ok);border-color:var(--ok);color:#04140c}.cbt-nav{display:flex;justify-content:space-between;gap:10px}.cbt-nav .btn{flex:1 1;max-width:220px}.cbt-grid{padding:16px;border-left:1px solid #ffffff14;background:#101226}.cbt-gridhead{display:flex;justify-content:space-between;gap:6px;margin-bottom:10px;font-size:.9rem}.cbt-nums{display:grid;grid-template-columns:repeat(auto-fill,minmax(40px,1fr));grid-gap:6px;gap:6px}.cbt-nums button{height:38px;border-radius:8px;border:1px solid #ffffff22;background:#ffffff08;color:var(--mut);font-weight:700;cursor:pointer;font-family:inherit}.cbt-nums button.done{background:#2ecc8f;color:#04140c;border-color:#2ecc8f}.cbt-nums button.cur{outline:3px solid var(--acc);outline-offset:1px;color:var(--txt)}.cbt-legend{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px;font-size:.78rem;color:var(--mut)}.cbt-legend i{display:inline-block;width:12px;height:12px;border-radius:3px;background:#ffffff14;border:1px solid #ffffff33;vertical-align:-2px;margin-right:4px}.cbt-legend i.done{background:#2ecc8f}.cbt-legend i.cur{outline:2px solid var(--acc)}kbd{background:#ffffff14;border:1px solid #ffffff22;border-radius:5px;padding:1px 6px;font-size:.78rem}.cbt .jb-disclaimer{margin:0;border-radius:0;border-width:1px 0 0}.jb-modal{position:fixed;inset:0;background:#000a;display:grid;place-items:center;z-index:50;padding:16px}.jb-modal .jb-card{max-width:440px;width:100%;box-shadow:0 20px 60px #000c}.bad{color:var(--bad)}.jb-score{text-align:center;padding:24px 16px;border-radius:22px;background:linear-gradient(135deg,#13294b,#1a1b33);border:1px solid #2ecc8f44;margin-bottom:14px}.jb-total{font-size:4rem;font-weight:800;line-height:1;color:var(--ok)}.jb-total 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6px}.jb-review .yours{color:#ffb3bf}.jb-review .right{color:#c9f7df}.jb-review .why{color:var(--mut);margin-top:4px;font-size:.92rem}@media(max-width:820px){.cbt-body{grid-template-columns:1fr}.cbt-grid{border-left:0;border-top:1px solid #ffffff14}.cbt-q{min-height:0;padding:16px}.cbt-top{padding:10px 12px}.cbt-top>div:first-child{font-size:.85rem}.cbt-timer{font-size:1.1rem}.cbt-tabs{flex-wrap:wrap}.cbt-tabs button{flex:1 1 50%;padding:10px 12px;font-size:.85rem;text-align:left}}.jn{--s-acc:#ffb547;--s-blue:#4cc9f0;--s-green:#3ddc97;--s-pink:#ff6fb5}.jn-title{font-size:2.1rem;margin:10px 0 6px}.jn-pills{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px}.jn .s-pill{background:#ffffff14;color:var(--txt)}.jn-obj{margin:0 0 16px}.jn .s-card h2{font-size:1.25rem}.jn .s-card li{margin:6px 0;line-height:1.55}.jn-facts{display:grid;grid-gap:10px;gap:10px;margin:0}.jn-facts>div{background:#0003;border-radius:12px;padding:10px 12px}.jn-facts dt{font-weight:800;color:var(--acc)}.jn-facts dd{margin:4px 0 0;line-height:1.5}.jn-steps{margin:8px 0;padding-left:22px}.jn-steps li{margin:4px 0}.jn .s-example p{margin:6px 0;font-size:1.02rem}.jn-traps{border-color:#ff5d7355}.jn-nav{display:grid;grid-template-columns:1fr 1fr;grid-gap:10px;gap:10px;margin:18px 0}.jn-nav .jb-row{flex-direction:column;align-items:flex-start;gap:2px}.jn-nav .next{align-items:flex-end;text-align:right}.jn-topics{list-style:none;padding:0;margin:14px 0}.jn-num{display:inline-grid;place-items:center;width:26px;height:26px;border-radius:50%;background:var(--card2);font-size:.8rem;font-weight:800;margin-right:8px}.jn-badges{display:flex;gap:6px;flex-wrap:wrap}.jb-tag.ok{background:#2ecc8f22;color:var(--ok)}.jn-practice .btn.s-btn.xl{box-shadow:0 10px 30px #ffb54744}@media(max-width:600px){.jn-title{font-size:1.6rem}.jn-nav{grid-template-columns:1fr}.jn-nav .next{align-items:flex-start;text-align:left}}.crown-line{display:flex;flex-direction:column;gap:4px;margin:18px 0 0}.crown-cd{display:inline-flex;align-items:center;gap:6px;width:-moz-fit-content;width:fit-content;max-width:100%;padding:8px 14px;border-radius:99px;background:linear-gradient(135deg,#ffb54733,#7c5cff33);border:1px solid #ffb54766;font-weight:600}.crown-cd b{color:var(--acc);font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.linkish{background:none;border:0;color:var(--acc);cursor:pointer;font-family:inherit;font-size:.92rem;padding:8px 0}.demo-wrap{margin:0 0 34px}.demo-wrap h2{margin-bottom:2px}.demo-wrap>p{margin:0 0 12px}.demo{max-width:620px;padding:18px}.demo-head{display:flex;justify-content:space-between;align-items:center;gap:8px}.demo-dots{display:flex;gap:6px;margin:12px 0 4px}.demo-dots i{flex:1 1;height:6px;border-radius:99px;background:var(--card2)}.demo-dots i.on{background:linear-gradient(90deg,var(--acc2),var(--acc))}.demo-q{font-family:Inter,system-ui,sans-serif;font-size:1.15rem;line-height:1.4;margin:12px 0 6px}.demo .opt{min-height:52px}.demo .opt:disabled{opacity:.55;cursor:default}.demo-why{margin-top:8px;font-size:.95rem;line-height:1.45}.demo.done{text-align:center}.demo-score{font-size:3.4rem;font-weight:800;line-height:1;color:var(--acc)}.demo-score small{font-size:1.3rem;color:var(--mut)}.demo-pts{font-size:1.08rem;margin:8px 0 14px}.btn.demo-cta{display:block;width:100%;line-height:1.3}.demo .small{margin:10px 0 0}.has-myrank{padding-bottom:12px}.reset-card{text-align:center;padding:14px;margin-bottom:16px}.reset-card p{margin:4px 0}.podium{list-style:none;padding:0;margin:8px 0 14px;display:grid;grid-template-columns:1fr 1.12fr 1fr;grid-gap:8px;gap:8px;align-items:end}.pod{position:relative;text-align:center;border-radius:18px;padding:12px 8px 0;overflow:hidden;min-width:0;border:1px solid #ffffff1a;background:var(--card)}.pod-icon{font-size:1.9rem;line-height:1}.pod.gold .pod-icon{font-size:2.4rem;animation:bob 2s infinite}.pod-rank{font-size:.68rem;font-weight:800;letter-spacing:.04em;text-transform:uppercase;margin-top:4px;opacity:.85}.pod-name{font-weight:700;font-size:.92rem;margin:6px 0 2px;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;word-break:break-word}.pod-pts b{font-size:1.15rem}.pod-pts span{font-size:.75rem;color:var(--mut)}.pod-step{margin:10px -8px 0;font-family:Fraunces,Georgia,serif;font-weight:900;font-size:1.6rem;padding:6px 0;color:#1a1020}.pod.gold{background:linear-gradient(180deg,#ffb54740,var(--card) 70%);border-color:#ffd36b99;box-shadow:0 10px 30px #ffb54733}.pod.gold .pod-rank{color:#ffd36b}.pod.gold .pod-step{background:linear-gradient(135deg,#ffd36b,#ff9f1c);padding:22px 0}.pod.silver{background:linear-gradient(180deg,#d7dbe840,var(--card) 70%);border-color:#d7dbe866}.pod.silver .pod-rank{color:#d7dbe8}.pod.silver .pod-step{background:linear-gradient(135deg,#eef1f8,#a9afc2);padding:12px 0}.pod.bronze{background:linear-gradient(180deg,#e0915a40,var(--card) 70%);border-color:#e0915a66}.pod.bronze .pod-rank{color:#f0a776}.pod.bronze .pod-step{background:linear-gradient(135deg,#f0a776,#b5622e)}.pod.me{outline:2px solid var(--acc2);outline-offset:2px}.ranklist{list-style:none;padding:0;margin:0 0 14px;display:flex;flex-direction:column;gap:6px}.ranklist li{display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:14px;background:var(--card);border:1px solid #ffffff10}.ranklist li.me{background:#7c5cff33;border-color:#7c5cff88}.rl-rank{width:30px;text-align:center;font-weight:800;color:var(--mut)}.rl-name{flex:1 1;min-width:0;overflow:hidden;text-overflow:ellipsis}.rl-name,.rl-pts{white-space:nowrap}.myrank{position:-webkit-sticky;position:sticky;bottom:10px;z-index:8;display:flex;align-items:center;gap:12px;margin-top:16px;padding:10px 12px 10px 14px;border-radius:16px;background:#23244af2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid #7c5cff88;box-shadow:0 10px 30px #000a}.myrank.out{justify-content:space-between;border-color:#ffb54788}.myrank .btn{flex:none}.mr-rank{font-family:Fraunces,Georgia,serif;font-weight:900;font-size:1.5rem;color:var(--acc);min-width:44px;text-align:center}.mr-main{flex:1 1;display:flex;flex-direction:column;min-width:0;line-height:1.25}.mr-main small{font-size:.75rem}.mr-gap{text-align:right;font-size:.85rem;line-height:1.25;white-space:nowrap}.mr-gap b{color:var(--ok);display:block;font-size:1rem}.jb-row.topic{scroll-margin-top:80px}.jb-row.topic:target{border-color:var(--acc);box-shadow:0 0 0 3px #ffb54744}.ms-section{margin-top:22px}.ms-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));grid-gap:12px;gap:12px}.ms-grid .jb-card{margin:0}.mastery .ms-h{margin:0 0 8px;font-size:1.15rem}.mastery .ms-h a{color:var(--txt);text-decoration:none}.ms-top{display:flex;justify-content:space-between;align-items:baseline;gap:8px;flex-wrap:wrap}.ms-top b{font-size:1.05rem}.ms-bar{height:12px;margin:8px 0}.ms-note{margin:0 0 6px}.ms-wh{font-weight:800;font-size:.9rem;margin:12px 0 6px;color:#ffb3bf}.ms-weak{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px}.ms-weak li{padding:10px 12px;border-radius:12px;background:#ff5d7314;border-left:3px solid var(--bad)}.ms-wt{display:flex;justify-content:space-between;gap:8px}.ms-acc{white-space:nowrap;font-weight:800;color:#ffb3bf}.ms-links{display:flex;gap:16px;flex-wrap:wrap;margin-top:6px;font-size:.9rem}.ms-links a{padding:4px 0}.ms-good{color:var(--ok);margin:8px 0 0}.mastery.out{border-color:#ffb54744}.ms-badge{display:inline-block;margin:6px 0 2px;padding:3px 9px;border-radius:99px;font-size:.78rem;font-weight:700;background:#ffffff12;color:var(--mut)}.ms-badge.ok{background:#2ecc8f22;color:var(--ok)}.ms-badge.weak{background:#ff5d7322;color:#ffb3bf}@media(max-width:520px){.demo{padding:16px}.pod-name{font-size:.85rem}.pod-pts b{font-size:1rem}.myrank{bottom:8px;gap:8px}.mr-main b{font-size:.95rem}.ms-grid{grid-template-columns:1fr}}