@keyframes tourFade{0%{opacity:0}to{opacity:1}}:root{--ink:#1b1a17;--ink-soft:#5d5952;--ink-faint:#8e8880;--bg:#faf8f4;--surface:#ffffff;--line:#e6e1d8;--line-soft:#f0ece4;--brand:#1b0067;--brand-ink:#ffffff;--brand-soft:#eeecf8;--accent:#b3141b;--ok:#1f6b46;--ok-soft:#e8f4ed;--bad:#a02c2c;--bad-soft:#fbecec;--r:14px;--r-s:10px;--shadow:0 1px 2px rgba(27,26,23,.05), 0 6px 20px rgba(27,26,23,.06);--nav-h:62px;--serif:ui-serif, Georgia, "Iowan Old Style", "Times New Roman", serif;--sans:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif}@media (prefers-color-scheme:dark){:root{--ink:#ece7df;--ink-soft:#a9a29a;--ink-faint:#7c766f;--bg:#14130f;--surface:#1e1c18;--line:#322e28;--line-soft:#262320;--brand:#a99cf0;--brand-ink:#14102e;--brand-soft:#211d3c;--accent:#f0908c;--ok:#6fca9b;--ok-soft:#17281f;--bad:#e88b8b;--bad-soft:#2b1a1a;--shadow:0 1px 2px rgba(0,0,0,.4), 0 6px 20px rgba(0,0,0,.3)}}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html{-webkit-text-size-adjust:100%}body{margin:0;font-family:var(--sans);font-size:16px;line-height:1.6;color:var(--ink);background:var(--bg);overflow-wrap:break-word;padding-bottom:calc(var(--nav-h) + env(safe-area-inset-bottom))}.reader h3,.tabbar a[aria-current=page],a{color:var(--brand)}button,input,select,textarea{font:inherit;color:inherit}.appbar{position:sticky;top:0;z-index:40;display:flex;align-items:center;gap:10px;padding:calc(10px + env(safe-area-inset-top)) 16px 10px;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:saturate(180%) blur(12px);-webkit-backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line-soft);min-height:54px}.appbar .crest{flex:none;width:30px;height:30px;display:block}.appbar h1{font:600 17px/1.25 var(--sans);margin:0;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.appbar .sub{display:block;font:400 12px/1.3 var(--sans);color:var(--ink-faint)}.iconbtn,.ring b{display:grid;place-items:center}.iconbtn{flex:none;width:38px;height:38px;border:1px solid var(--line);background:var(--surface);border-radius:50%;cursor:pointer;font-size:17px;line-height:1}.iconbtn:active{transform:scale(.94)}.readbar{position:fixed;left:0;top:0;height:3px;z-index:60;background:var(--brand);width:0;transition:width .12s linear}main{padding:16px;max-width:720px;margin:0 auto}@media (min-width:760px){main{padding:28px 24px 40px}}.stack>*+*{margin-top:14px}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:16px;box-shadow:var(--shadow)}.hero p,.muted{color:var(--ink-soft)}.tiny{font-size:13px}.center{text-align:center}.hero{padding:18px 16px 20px}.hero h2{margin:0 0 4px;font:600 22px/1.25 var(--sans)}.hero p{margin:0;font-size:14px}.ringwrap{display:flex;align-items:center;gap:18px;margin-top:16px}.ring{flex:none;position:relative;width:92px;height:92px}.ring svg{transform:rotate(-90deg);display:block}.ring .track{stroke:var(--line)}.ring .fill{stroke:var(--brand);stroke-linecap:round;transition:stroke-dashoffset .6s cubic-bezier(.2,.8,.2,1)}.ring b{position:absolute;inset:0;font:600 21px/1 var(--sans)}.ringstats{flex:1;min-width:0;font-size:14px}.ringstats div+div{margin-top:3px}.ringstats b{font-variant-numeric:tabular-nums}.btn,.tabbar a{align-items:center;justify-content:center;text-decoration:none}.btn{display:inline-flex;gap:8px;width:100%;padding:14px 18px;border:1px solid var(--brand);background:var(--brand);color:var(--brand-ink);border-radius:var(--r-s);font:600 16px/1 var(--sans);cursor:pointer;min-height:50px}.btn:active{transform:scale(.985)}.btn.ghost{background:var(--surface);color:var(--ink);border-color:var(--line)}.btn.quiet{background:0 0;color:var(--brand);border-color:transparent}.btn[disabled]{opacity:.45;pointer-events:none}.btn.sm{padding:10px 14px;font-size:14px;min-height:42px;width:auto}.btnrow{display:flex;gap:10px;flex-wrap:wrap}.btnrow .btn{width:auto;flex:1 1 140px}.seclist{list-style:none;margin:0;padding:0}.seclist li+li{margin-top:10px}.secitem{display:flex;align-items:flex-start;gap:13px;width:100%;text-align:left;padding:14px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);cursor:pointer;box-shadow:var(--shadow)}.secitem:active{transform:scale(.99)}.secitem .ic{flex:none;width:40px;height:40px;display:grid;place-items:center;border-radius:11px;background:var(--brand-soft);font-size:19px}.secitem .bd{flex:1;min-width:0}.secitem .ti{display:block;font-weight:600;font-size:15.5px;line-height:1.35}.secitem .su{display:block;font-size:13px;color:var(--ink-soft);margin-top:2px;line-height:1.45}.secitem .no{display:block;font-size:11px;letter-spacing:.07em;text-transform:uppercase;color:var(--ink-faint);font-weight:600}.chips{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}.chip{font:600 11.5px/1 var(--sans);padding:5px 9px;border-radius:999px;background:var(--line-soft);color:var(--ink-soft);border:1px solid transparent;letter-spacing:.01em}.chip.done,.chip.pass{background:var(--ok-soft);color:var(--ok)}.chip.fail{background:var(--bad-soft);color:var(--bad)}.chip.gold{background:color-mix(in srgb,var(--accent) 16%,transparent);color:var(--accent)}.tabbar{position:fixed;left:0;right:0;bottom:0;z-index:50;display:grid;grid-template-columns:repeat(4,1fr);background:color-mix(in srgb,var(--surface) 92%,transparent);backdrop-filter:saturate(180%) blur(14px);-webkit-backdrop-filter:saturate(180%) blur(14px);border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom)}.tabbar a{display:flex;flex-direction:column;gap:3px;height:var(--nav-h);color:var(--ink-faint);font:600 10.5px/1 var(--sans);letter-spacing:.02em}.tabbar a i{font-style:normal;font-size:20px;line-height:1}.reader{font-size:16.5px}.reader h3{font:600 17.5px/1.35 var(--sans);margin:30px 0 10px;scroll-margin-top:70px}.reader h3:first-child{margin-top:4px}.reader p{margin:0 0 13px}.reader ol,.reader ul{margin:0 0 15px;list-style:none;padding-left:0}.reader li{margin-bottom:7px}.reader ol>li,.reader ul>li{position:relative;padding-left:20px}.reader ul>li::before{content:"";position:absolute;left:4px;top:.62em;width:6px;height:6px;border-radius:50%;background:var(--accent)}.reader ol{counter-reset:n}.reader ol>li{padding-left:30px;counter-increment:n}.reader ol>li::before{content:counter(n)".";position:absolute;left:0;top:0;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums}.kv{margin:0 0 16px;border-top:1px solid var(--line-soft)}.kv>div{display:grid;gap:2px;padding:11px 2px;border-bottom:1px solid var(--line-soft)}.kv dt{font-weight:650}.kv dd,.kv dt,.note{font-size:15px}.kv dd{margin:0;color:var(--ink-soft)}@media (min-width:620px){.kv>div{grid-template-columns:minmax(140px,34%) 1fr;gap:18px;align-items:baseline}}.note{margin:0 0 16px;padding:13px 15px;background:var(--brand-soft);border-left:3px solid var(--brand);border-radius:0 var(--r-s) var(--r-s)0}.note::before{content:"N.B.";display:block;font:700 11px/1 var(--sans);letter-spacing:.1em;color:var(--brand);margin-bottom:6px}blockquote.verse{margin:0 0 16px;padding:15px 17px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-s);font-family:var(--serif);font-size:16.5px;line-height:1.65}blockquote.verse cite{display:block;margin-top:9px;font:600 12px/1 var(--sans);letter-spacing:.06em;text-transform:uppercase;color:var(--accent);font-style:normal}.endcard{margin-top:30px}.qhead{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}.qcount,.qtype{font:600 12px/1 var(--sans);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-faint)}.qtype{font:600 11px/1 var(--sans);letter-spacing:.07em;padding:5px 9px;border-radius:999px;background:var(--line-soft);color:var(--ink-soft)}.pbar,.pbar i{border-radius:99px}.pbar{height:5px;background:var(--line);overflow:hidden;margin-bottom:18px}.pbar i{display:block;height:100%;background:var(--brand);transition:width .3s ease}.qtext{font:600 19px/1.42 var(--sans);margin:0 0 18px}.opts{display:grid;gap:9px}.opt{display:flex;align-items:flex-start;gap:11px;width:100%;text-align:left;padding:14px 15px;background:var(--surface);border-radius:var(--r-s);cursor:pointer;font-size:15.5px;line-height:1.45}.opt:active{transform:scale(.99)}.opt,.opt .k,textarea.answer{border:1.5px solid var(--line)}.opt .k{flex:none;width:25px;height:25px;border-radius:50%;display:grid;place-items:center;font:700 12px/1 var(--sans);color:var(--ink-faint)}.opt.sel,.opt.sel .k{border-color:var(--brand)}.opt.sel{background:var(--brand-soft)}.opt.sel .k{color:var(--brand)}.opt.right,.opt.right .k{border-color:var(--ok);background:var(--ok-soft)}.opt.right .k{color:var(--ok)}.opt.wrong{border-color:var(--bad);background:var(--bad-soft)}.opt.wrong .k{border-color:var(--bad);color:var(--bad)}.opt[disabled]{cursor:default}.tfrow{display:grid;grid-template-columns:1fr 1fr;gap:10px}.tfrow .opt{justify-content:center;font-weight:600;font-size:16.5px;padding:20px 12px}textarea.answer{width:100%;min-height:96px;resize:vertical;padding:13px 14px;background:var(--surface);border-radius:var(--r-s);font-size:16px;line-height:1.5}textarea.answer:focus{outline:0;border-color:var(--brand)}.matchgrid,.mrow{display:grid;gap:9px}.mrow{grid-template-columns:1fr;gap:7px;padding:11px 12px;border:1.5px solid var(--line);border-radius:var(--r-s);background:var(--surface)}.mrow.active{border-color:var(--brand);background:var(--brand-soft)}.mrow.right{border-color:var(--ok);background:var(--ok-soft)}.mrow.wrong{border-color:var(--bad);background:var(--bad-soft)}.mrow .ml{font-weight:650;font-size:15px}.bank,.mrow .mr{display:flex;gap:8px}.mrow .mr{font-size:14px;color:var(--ink-soft);min-height:22px;align-items:center}.mrow .mr.empty{color:var(--ink-faint);font-style:italic}.mrow .x{margin-left:auto;flex:none;width:24px;height:24px;border-radius:50%;border:1px solid var(--line);background:0 0;display:grid;place-items:center;font-size:13px;cursor:pointer}.bank{flex-wrap:wrap;margin-top:14px}.bankchip{padding:10px 13px;border:1.5px solid var(--line);background:var(--surface);border-radius:var(--r-s);font-size:14px;line-height:1.35;cursor:pointer;text-align:left;max-width:100%}.bankchip:active{transform:scale(.97)}.bankchip.used{opacity:.3;pointer-events:none}.hintline{font-size:13px;color:var(--ink-faint);margin:0 0 10px}.fb{margin-top:16px;padding:14px 15px;border-radius:var(--r-s);border:1px solid var(--line);background:var(--surface);font-size:15px;line-height:1.55}.fb.good{border-color:var(--ok);background:var(--ok-soft)}.fb.bad{border-color:var(--bad);background:var(--bad-soft)}.fb .verdict{font-weight:700;margin-bottom:6px;display:flex;align-items:center;gap:7px}.fb .model{margin-top:9px;padding-top:9px;border-top:1px solid color-mix(in srgb,currentColor 18%,transparent)}.fb .model b,.ptable th{letter-spacing:.07em;text-transform:uppercase}.fb .model b{display:block;font-size:12px;opacity:.7;margin-bottom:3px}.selfmark{display:flex;gap:8px;margin-top:12px;flex-wrap:wrap}.score{text-align:center;padding:26px 16px}.score .big,.stat b{font:700 52px/1 var(--sans);font-variant-numeric:tabular-nums}.score .lbl{font-size:14px;color:var(--ink-soft);margin-top:6px}.score .verdict{margin-top:14px;font-weight:650;font-size:17px}.score.passed .big{color:var(--ok)}.score.failed .big{color:var(--bad)}.review{list-style:none;margin:0;padding:0}.ptable td,.review li{border-top:1px solid var(--line-soft)}.review li{padding:12px 0;display:flex;gap:11px;align-items:flex-start;font-size:14.5px;line-height:1.5}.review li .m{flex:none;font-size:15px}.statgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.stat{padding:14px;border:1px solid var(--line);border-radius:var(--r);background:var(--surface)}.stat b{display:block;font:700 26px/1.1 var(--sans)}.stat span{font-size:12.5px;color:var(--ink-soft)}.ptable{width:100%;border-collapse:collapse;font-size:14.5px}.ptable th{text-align:left;font:600 11px/1 var(--sans);color:var(--ink-faint);padding:0 0 9px}.ptable td{padding:10px 0;vertical-align:middle}.ptable td:last-child,.ptable th:last-child{text-align:right}.tblwrap{overflow-x:auto}code.codebox{display:block;width:100%;padding:12px;margin-top:8px;background:var(--line-soft);border-radius:var(--r-s);font:12px/1.5 ui-monospace,SFMono-Regular,Menlo,monospace;word-break:break-all;max-height:130px;overflow:auto}.acc{border-top:1px solid var(--line-soft)}.acc summary{padding:13px 0;cursor:pointer;font-weight:600;font-size:15px;list-style:none;display:flex;align-items:center;justify-content:space-between}.acc summary::-webkit-details-marker{display:none}.acc summary::after{content:"＋";color:var(--ink-faint);font-weight:400}.acc[open] summary::after{content:"－"}.acc>div{padding-bottom:14px}.toast{position:fixed;left:50%;bottom:calc(var(--nav-h) + 18px + env(safe-area-inset-bottom));transform:translate(-50%,20px);z-index:90;opacity:0;pointer-events:none;padding:11px 18px;border-radius:999px;background:var(--ink);color:var(--bg);font:600 14px/1 var(--sans);transition:opacity .2s,transform .2s;max-width:calc(100vw - 40px)}.toast.on{opacity:1;transform:translate(-50%,0)}@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}.tour-mask{position:fixed;inset:0;z-index:80;background:0 0;animation:tourFade .18s ease-out}.tour-hole{position:absolute;border-radius:12px;box-shadow:0 0 0 9999px rgba(12,10,8,.72);transition:top .28s cubic-bezier(.2,.8,.2,1),left .28s cubic-bezier(.2,.8,.2,1),width .28s cubic-bezier(.2,.8,.2,1),height .28s cubic-bezier(.2,.8,.2,1);pointer-events:none}.tour-hole.center{box-shadow:0 0 0 9999px rgba(12,10,8,.78)}.tour-card{position:absolute;width:min(340px,calc(100vw - 32px));background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:var(--r);padding:17px 18px 15px;box-shadow:0 10px 40px rgba(0,0,0,.35);transition:top .28s cubic-bezier(.2,.8,.2,1),left .28s cubic-bezier(.2,.8,.2,1)}.tour-card h3{margin:0 0 7px;padding-right:44px;font:600 17px/1.3 var(--sans);color:var(--brand)}.tour-card:focus{outline:0}.tour-card:focus-visible{outline:2px solid var(--brand);outline-offset:2px}.tour-card p{margin:0;font-size:14.5px;line-height:1.55;color:var(--ink-soft)}.tour-card p+p{margin-top:9px}.tour-card strong,.tour-skip:hover{color:var(--ink)}.tour-foot{display:flex;align-items:center;gap:10px;margin-top:15px}.tour-dots{display:flex;gap:5px;flex:1}.tour-dots i{width:6px;height:6px;border-radius:50%;background:var(--line);display:block}.tour-dots i.on{background:var(--brand)}.tour-card .btn.sm{min-height:38px;padding:9px 14px}.tour-skip{position:absolute;top:12px;right:12px;border:0;background:0 0;cursor:pointer;font:600 12px/1 var(--sans);color:var(--ink-faint);padding:4px 6px}@media (prefers-reduced-motion:reduce){.tour-card,.tour-hole{transition:none}.tour-mask{animation:none}}