@font-face{font-family:Zalando Sans Expanded Variable;font-style:normal;font-display:swap;font-weight:200 900;src:url(../media/zalando-sans-expanded-vietnamese-wght-normal.2c9_yw_7tag4z.woff2)format("woff2-variations");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Zalando Sans Expanded Variable;font-style:normal;font-display:swap;font-weight:200 900;src:url(../media/zalando-sans-expanded-latin-ext-wght-normal.1hp0s-d526me-.woff2)format("woff2-variations");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Zalando Sans Expanded Variable;font-style:normal;font-display:swap;font-weight:200 900;src:url(../media/zalando-sans-expanded-latin-wght-normal.2imuckzpxt1gq.woff2)format("woff2-variations");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:JetBrains Mono Variable;font-style:normal;font-display:swap;font-weight:100 800;src:url(../media/jetbrains-mono-cyrillic-ext-wght-normal.1ladf10s224e1.woff2)format("woff2-variations");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:JetBrains Mono Variable;font-style:normal;font-display:swap;font-weight:100 800;src:url(../media/jetbrains-mono-cyrillic-wght-normal.0x7cg5h5x34js.woff2)format("woff2-variations");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:JetBrains Mono Variable;font-style:normal;font-display:swap;font-weight:100 800;src:url(../media/jetbrains-mono-greek-wght-normal.1k07jbkicvzf3.woff2)format("woff2-variations");unicode-range:U+370-377,U+37A-37F,U+384-38A,U+38C,U+38E-3A1,U+3A3-3FF}@font-face{font-family:JetBrains Mono Variable;font-style:normal;font-display:swap;font-weight:100 800;src:url(../media/jetbrains-mono-vietnamese-wght-normal.0a13tgqsi9z78.woff2)format("woff2-variations");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:JetBrains Mono Variable;font-style:normal;font-display:swap;font-weight:100 800;src:url(../media/jetbrains-mono-latin-ext-wght-normal.3rxtet6g9i1k3.woff2)format("woff2-variations");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:JetBrains Mono Variable;font-style:normal;font-display:swap;font-weight:100 800;src:url(../media/jetbrains-mono-latin-wght-normal.2rmhnsrc80fag.woff2)format("woff2-variations");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
:root{--chrome-accent:#4137ff;--chrome-accent-soft:#efebfe;--chrome-ink:#111;--chrome-ink-dim:#4e4b58;--chrome-line:#dcdce3;--chrome-line-faint:#ededf1;--chrome-surface:#f8f8fa;--color-white:#fff;--chrome-bar-h:67px;--chrome-motion-ease:cubic-bezier(.16,1,.3,1);--bg:var(--color-white);--surface:var(--chrome-surface);--ink:var(--chrome-ink);--ink-dim:var(--chrome-ink-dim);--ink-faint:#7c7a88;--line:var(--chrome-line);--line-faint:var(--chrome-line-faint);--accent:var(--chrome-accent);--accent-soft:var(--chrome-accent-soft);--accent-strong:#342bd9;--bad:#c13c36;--good:#2f7d4f;--scrim:#11111173;--shadow:0 24px 60px #1111142e;--code-bg:#16161d;--code-ink:#e6e6ef;--board-cols:26px 1fr 92px 70px 96px;--font-sans:"Zalando Sans Expanded Variable",ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;--font-mono:"JetBrains Mono Variable",ui-monospace,SFMono-Regular,Menlo,monospace}.challenge-attest{--bg:var(--color-white);--ink:var(--chrome-ink);--ink-dim:var(--chrome-ink-dim);--accent:var(--chrome-accent);--accent-soft:var(--chrome-accent-soft);--accent-strong:#342bd9;--bad:#c13c36}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--ink);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;min-height:100vh;line-height:1.5}button{font:inherit;color:inherit;cursor:pointer;background:0 0;border:0}a{color:inherit}.page{max-width:940px;margin:0 auto;padding:0 30px 96px}.label{font-family:var(--font-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--ink-faint);font-size:11px;font-weight:500}.chrome{height:var(--chrome-bar-h);background:var(--chrome-surface);border-bottom:1px solid var(--chrome-line)}.chrome-inner{justify-content:space-between;align-items:center;gap:24px;max-width:940px;height:100%;margin:0 auto;padding:0 30px;display:flex}.topbar{display:contents}.wordmark{letter-spacing:-.01em;color:var(--chrome-ink);font-size:16px;font-weight:600}.wordmark .dot{color:var(--accent)}.nav{align-items:center;gap:22px;display:flex}.nav a,.nav button{font-family:var(--font-mono);letter-spacing:.02em;color:var(--chrome-ink-dim);transition:color .15s var(--chrome-motion-ease);font-size:11.5px;font-weight:500;text-decoration:none}.nav a:hover,.nav button:hover{color:var(--accent)}.hero{border-bottom:1px solid var(--line-faint);padding:72px 0 64px}.kicker{font-family:var(--font-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-dim);margin-bottom:26px;font-size:11px;font-weight:500}.headline{letter-spacing:-.022em;max-width:24ch;font-size:40px;font-weight:600;line-height:1.14}.headline .hl-num{color:var(--accent);font-variant-numeric:tabular-nums}.headline .info{color:var(--ink-faint);cursor:help;vertical-align:super;margin-left:.25em;font-size:.36em;font-weight:500}.meter{margin-top:44px}.meter-bar{background:var(--line);height:2px;position:relative}.meter-fill{background:var(--accent);height:2px;position:absolute;top:0;left:0}.meter-tick{background:var(--ink);width:2px;height:10px;position:absolute;top:-4px;transform:translate(-50%)}.meter-tick .v{font-family:var(--font-mono);color:var(--ink);white-space:nowrap;font-variant-numeric:tabular-nums;font-size:12px;font-weight:600;position:absolute;top:-22px;left:50%;transform:translate(-50%)}.meter-ends{font-family:var(--font-mono);letter-spacing:.03em;text-transform:uppercase;color:var(--ink-faint);justify-content:space-between;margin-top:9px;font-size:10.5px;font-weight:500;display:flex}.substat{font-family:var(--font-mono);color:var(--ink-dim);margin-top:26px;font-size:12.5px;font-weight:400}.register{padding:52px 0 10px}.reg-top{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:18px;margin-bottom:8px;display:flex}.reg-head,.reg-row,.fr-head,.fr-row{grid-template-columns:var(--board-cols);align-items:center;gap:14px;display:grid}.reg-head,.fr-head{border-bottom:1px solid var(--line);padding:10px 0}.reg-head button,.fr-head span{font-family:var(--font-mono);letter-spacing:.07em;text-transform:uppercase;color:var(--ink-faint);text-align:left;font-size:10px;font-weight:500}.reg-head button:hover{color:var(--accent)}.reg-head .r,.fr-head .r{text-align:right}.reg-head .arrow{opacity:.35;margin-left:3px}.reg-head button.sorted{color:var(--ink)}.reg-head button.sorted .arrow{opacity:.9}.reg-row{border-bottom:1px solid var(--line-faint);cursor:pointer;transition:background .12s var(--chrome-motion-ease);padding:18px 0}.reg-row:hover{background:var(--accent-soft)}.reg-row:focus{background:var(--accent-soft);outline:none}.prov{color:var(--ink);font-size:16px;font-weight:500}.prov small{font-family:var(--font-mono);color:var(--ink-faint);text-transform:uppercase;letter-spacing:.03em;margin-top:4px;font-size:10px;font-weight:400;display:block}.cell-r{text-align:right}.score{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em;font-size:20px;font-weight:500}.score .sub{font-family:var(--font-mono);color:var(--ink-faint);text-transform:uppercase;letter-spacing:.02em;margin-top:3px;font-size:9.5px;font-weight:400;display:block}.vwall{align-items:center;margin-top:8px;display:flex}.vface{border:1.5px solid var(--bg);background:var(--line-faint);object-fit:cover;border-radius:50%;width:18px;height:18px;margin-right:-5px}.vwall em{font-family:var(--font-mono);color:var(--ink-faint);text-transform:uppercase;letter-spacing:.03em;margin-left:10px;font-size:9.5px;font-style:normal;font-weight:400}.vlist{flex-wrap:wrap;gap:9px;margin-bottom:13px;display:flex}.vchip{border:1px solid var(--line);color:var(--ink-dim);font-family:var(--font-mono);border-radius:999px;align-items:center;gap:7px;padding:5px 12px 5px 5px;font-size:11.5px;text-decoration:none;display:inline-flex}.vchip:hover{border-color:var(--accent);color:var(--accent)}.vchip img{object-fit:cover;background:var(--line-faint);border-radius:50%;width:22px;height:22px}.vchip .vmode{text-transform:uppercase;letter-spacing:.04em;color:var(--accent);border:1px solid var(--accent);border-radius:4px;padding:1px 4px;font-size:8.5px;font-style:normal;font-weight:600}.vnote{color:var(--ink-dim);margin:4px 0 14px;font-size:13px;line-height:1.55}.vsign{font-family:var(--font-mono);letter-spacing:.02em;color:var(--color-white);background:var(--accent);transition:background .15s var(--chrome-motion-ease);border-radius:8px;padding:10px 18px;font-size:11.5px;font-weight:500;text-decoration:none;display:inline-block}.vsign:hover{background:var(--accent-strong)}.prov-badge{font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.04em;color:var(--ink-faint);margin-top:5px;font-size:8.5px;font-weight:500;display:block}.prov-badge.repro{color:var(--good)}.prov-badge.repro:before{content:"✓ "}.prov-badge.subm,.prov-badge.unver{color:var(--ink-faint)}.prov-badge.inside{color:var(--ink-dim)}.prov-badge.inside:before{content:"⬡ "}.modal-head .prov-badge{vertical-align:middle;margin:0 0 0 6px;display:inline-block}.prov-note{color:var(--ink-dim);border-top:1px solid var(--line-faint);margin-top:13px;padding-top:12px;font-size:12.5px;line-height:1.6}.delta{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:12.5px;font-weight:500}.delta.up{color:var(--good)}.delta.down{color:var(--bad)}.delta.zero{color:var(--ink-faint)}.vd{font-family:var(--font-mono);letter-spacing:.06em;text-transform:uppercase;font-size:10.5px;font-weight:600}.vd.pass{color:var(--good)}.vd.fail{color:var(--bad)}.vd.partial{color:var(--accent)}.vd.skipped,.vd.unknown{color:var(--ink-faint)}.seal-glyph{width:22px;height:22px;color:var(--ink-faint);display:block}.seal-glyph.pass{color:var(--good)}.seal-glyph.fail{color:var(--bad)}.seal-glyph.partial{color:var(--accent)}.seal-mark{color:var(--accent);margin-right:6px;font-size:11px}.footer{border-top:1px solid var(--line-faint);color:var(--ink-dim);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;margin-top:56px;padding-top:20px;font-size:13px;display:flex}.footer .muted{font-family:var(--font-mono);color:var(--ink-faint);font-size:11px}.overlay{background:var(--scrim);z-index:60;justify-content:center;align-items:center;padding:24px;display:flex;position:fixed;inset:0}.modal{background:var(--bg);border:1px solid var(--line);width:100%;max-width:560px;max-height:86vh;box-shadow:var(--shadow);border-radius:14px;overflow:auto}.modal-head{border-bottom:1px solid var(--line-faint);justify-content:space-between;align-items:center;padding:22px 26px;display:flex}.modal-head h3{letter-spacing:-.015em;font-size:20px;font-weight:600}.modal-x{border:1px solid var(--line);width:34px;height:34px;color:var(--ink-dim);border-radius:8px;font-size:13px}.modal-x:hover{background:var(--surface);color:var(--ink)}.modal-body{padding:24px 26px 26px}.step{gap:15px;margin-bottom:20px;display:flex}.step .num{border:1px solid var(--line);width:26px;height:26px;font-family:var(--font-mono);color:var(--accent);border-radius:50%;flex:none;place-items:center;font-size:12px;font-weight:500;display:grid}.step h4{margin-bottom:4px;font-size:16px;font-weight:600}.step p{color:var(--ink-dim);font-size:14px}.thesis .lead{color:var(--ink);letter-spacing:-.015em;margin-bottom:20px;font-size:20px;font-weight:600;line-height:1.3}.thesis p{color:var(--ink-dim);margin-bottom:15px;font-size:14.5px;line-height:1.62}.thesis strong{color:var(--ink);font-weight:600}.thesis a{color:var(--accent);text-underline-offset:2px;font-weight:500;text-decoration:underline}.thesis a:hover{color:var(--accent-strong)}.thesis .sign{border-top:1px solid var(--line-faint);color:var(--ink-dim);margin-top:20px;margin-bottom:0;padding-top:16px;font-size:14px}.thesis .sign-seal{color:var(--accent);margin-right:6px;font-size:11px}.participate .lead{color:var(--ink);letter-spacing:-.015em;margin-bottom:16px;font-size:19px;font-weight:600;line-height:1.3}.participate p{color:var(--ink-dim);margin-bottom:14px;font-size:14px;line-height:1.6}.part-h{color:var(--ink);margin:22px 0 8px;font-size:15px;font-weight:600}.part-sub{margin-bottom:14px}.code{font-family:var(--font-mono);color:var(--code-ink);background:var(--code-bg);white-space:pre;border-radius:9px;margin:4px 0 16px;padding:14px 16px;font-size:11.5px;line-height:1.7;overflow-x:auto}.verdicts{border-top:1px solid var(--line-faint);margin-top:8px;padding-top:18px}.verdicts-title{margin-bottom:6px;font-size:16px;font-weight:600}.verdicts-intro{color:var(--ink-dim);margin-bottom:16px;font-size:13px}.verdict-row{align-items:flex-start;gap:13px;margin-bottom:15px;display:flex}.verdict-row .seal-glyph{flex:none;width:24px;height:24px;margin-top:3px}.verdict-row p{color:var(--ink-dim);font-size:13.5px;line-height:1.55}.verdict-row b{color:var(--ink);font-weight:600}.verdict-row b.pass{color:var(--good)}.verdict-row b.fail{color:var(--bad)}.verdict-row b.partial{color:var(--accent)}.verdict-row b.skipped{color:var(--ink-faint)}.modal.pm{max-width:600px}.pm-section{border-top:1px solid var(--line-faint);padding:18px 0}.pm-section:first-child{border-top:0;padding-top:0}.pm-section h4{margin-bottom:13px;font-size:14px;font-weight:600}.pm-grid{grid-template-columns:1fr 1fr;gap:14px 22px;display:grid}.pm-grid>div{flex-direction:column;gap:3px;display:flex}.pm .k{font-family:var(--font-mono);letter-spacing:.07em;text-transform:uppercase;color:var(--ink-faint);font-size:10px;font-weight:500}.pm .v{color:var(--ink);font-size:14.5px}.checks{flex-direction:column;gap:10px;list-style:none;display:flex}.checks li{color:var(--ink-dim);align-items:center;gap:11px;font-size:13.5px;display:flex}.checks .mark{border-radius:50%;flex:none;place-items:center;width:19px;height:19px;font-size:11px;font-weight:600;display:grid}.mark.yes{background:color-mix(in srgb,var(--good) 14%,transparent);color:var(--good)}.mark.no{background:color-mix(in srgb,var(--bad) 12%,transparent);color:var(--bad)}.mark.pending{background:var(--line-faint);color:var(--ink-faint)}.pm-kv{justify-content:space-between;align-items:baseline;gap:14px;margin-top:14px;display:flex}.pm .mono{font-family:var(--font-mono);color:var(--ink-dim);word-break:break-all;font-size:11px}.pm-meas{flex-direction:column;gap:7px;margin-top:14px;display:flex}.pm-meas .row{font-family:var(--font-mono);gap:12px;font-size:11px;display:flex}.pm-meas .lbl{color:var(--ink-faint);text-transform:uppercase;flex:none;width:48px}.pm-meas .val{color:var(--ink-dim);word-break:break-all}.notes{flex-direction:column;gap:6px;list-style:none;display:flex}.notes li{color:var(--ink-faint);font-size:12.5px}.pm-pending{color:var(--ink-dim);font-size:14px;line-height:1.55}.pm-foot{color:var(--ink-faint);font-size:12.5px}.pm-binding{border:1px solid var(--line-faint);background:var(--surface);border-radius:9px;margin-top:16px;padding:14px 16px}.pm-binding p{color:var(--ink-dim);margin-bottom:8px;font-size:13px;line-height:1.58}.pm-binding p:last-child{margin-bottom:0}.pm-binding b{color:var(--ink);font-weight:600}.pm-claim{border-top:1px dotted var(--line);color:var(--ink-faint);margin-top:9px;padding-top:9px}.pm-findings{border-left:2px solid var(--accent);padding-left:14px}.pm-findings p{color:var(--ink-dim);margin-bottom:11px;font-size:13px;line-height:1.6}.pm-findings p:last-child{margin-bottom:0}.pm-findings p:first-child{color:var(--ink)}.board-tabs{align-items:baseline;gap:20px;display:flex}.board-tab{letter-spacing:-.018em;color:var(--ink-faint);cursor:pointer;transition:color .15s var(--chrome-motion-ease);background:0 0;padding:0;font-size:19px;font-weight:600;line-height:1.2}.board-tab.on{color:var(--ink)}.board-tab:not(.on):hover{color:var(--ink-dim)}.work-list{border-top:1px solid var(--line);margin-top:12px}.work-item{border-bottom:1px solid var(--line-faint)}.work-row{cursor:pointer;transition:background .12s var(--chrome-motion-ease);justify-content:space-between;align-items:center;gap:14px;padding:15px 4px;display:flex}.work-row:hover{background:var(--accent-soft)}.work-row:focus{background:var(--accent-soft);outline:none}.work-name{color:var(--ink);font-size:16px;font-weight:500}.work-name small{font-family:var(--font-mono);color:var(--ink-faint);text-transform:uppercase;letter-spacing:.03em;margin-top:4px;font-size:10px;font-weight:400;display:block}.work-right{flex:none;align-items:center;gap:12px;display:flex}.work-vs{display:flex}.work-vs img{border:1.5px solid var(--bg);object-fit:cover;background:var(--line-faint);border-radius:50%;width:18px;height:18px;margin-right:-5px}.work-status{font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.04em;color:var(--ink-faint);font-size:9.5px;font-weight:500}.work-status.s-open{color:var(--accent)}.work-chev{font-family:var(--font-mono);color:var(--ink-faint);text-align:center;width:12px;font-size:15px}.work-detail{padding:0 4px 18px}.work-detail p{color:var(--ink-dim);max-width:70ch;margin-bottom:13px;font-size:13.5px;line-height:1.6}.work-actions{flex-wrap:wrap;align-items:center;gap:18px;display:flex}.work-copy{font-family:var(--font-mono);letter-spacing:.02em;text-transform:uppercase;color:var(--ink);border:1px solid var(--line);cursor:pointer;transition:all .15s var(--chrome-motion-ease);background:0 0;border-radius:8px;padding:8px 14px;font-size:10.5px;font-weight:500}.work-copy:hover{background:var(--ink);border-color:var(--ink);color:var(--bg)}.work-brief{font-family:var(--font-mono);letter-spacing:.02em;text-transform:uppercase;color:var(--ink-dim);font-size:11px;font-weight:500;text-decoration:none}.work-brief:hover{color:var(--accent)}.work-foot{color:var(--ink-dim);max-width:70ch;margin-top:18px;font-size:13px;line-height:1.6}.work-newprov{border-top:1px solid var(--line-faint);margin-top:22px;padding-top:18px}.work-newprov h4{margin-bottom:7px;font-size:14px;font-weight:600}.work-newprov p{color:var(--ink-dim);max-width:68ch;margin-bottom:12px;font-size:13px;line-height:1.6}.hero-cta{flex-wrap:wrap;align-items:center;gap:18px;margin-top:32px;display:flex}.cta-primary{font-family:var(--font-mono);letter-spacing:.02em;color:var(--color-white);background:var(--accent);transition:background .15s var(--chrome-motion-ease);border-radius:8px;padding:11px 20px;font-size:11.5px;font-weight:500;text-decoration:none;display:inline-block}.cta-primary:hover{background:var(--accent-strong)}.cta-ghost{font-family:var(--font-mono);letter-spacing:.02em;color:var(--ink-dim);border-bottom:1px solid var(--line);padding-bottom:3px;font-size:11.5px;font-weight:500;text-decoration:none}.cta-ghost:hover{color:var(--accent);border-bottom-color:var(--accent)}.frontier{border-top:1px solid var(--line-faint);margin-top:16px}.fr-row{border-bottom:1px solid var(--line-faint);transition:background .12s var(--chrome-motion-ease);padding:16px 0}.fr-row:hover{background:var(--accent-soft)}.fr-rank{font-family:var(--font-mono);color:var(--ink-faint);font-variant-numeric:tabular-nums;text-align:center;font-size:14px;font-weight:500}.fr-who a{font-size:16px;font-weight:500;text-decoration:none}.fr-who a:hover{color:var(--accent)}.fr-who small{font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.03em;color:var(--ink-faint);margin-top:4px;font-size:10px;font-weight:400;display:block}.fr-live{font-family:var(--font-mono);letter-spacing:.04em;text-transform:uppercase;color:var(--accent);white-space:nowrap;font-size:10.5px;font-weight:500}.fr-promoted{font-family:var(--font-mono);letter-spacing:.04em;text-transform:uppercase;color:var(--ink-faint);font-size:10.5px;font-weight:500}.fr-empty{max-width:66ch;padding:24px 0 8px}.fr-empty p{color:var(--ink-dim);margin-bottom:15px;font-size:15px;line-height:1.6}.fr-empty b{color:var(--ink);font-weight:600}.fr-actions{flex-wrap:wrap;align-items:center;gap:22px;margin-top:24px;display:flex}.fr-more{font-family:var(--font-mono);letter-spacing:.02em;text-transform:uppercase;color:var(--ink-faint);border-bottom:1px solid var(--line);padding-bottom:3px;font-size:11px;font-weight:500}.fr-more:hover{color:var(--ink);border-bottom-color:var(--ink-dim)}.fr-rules{background:var(--accent-soft);border-radius:10px;margin-top:24px;padding:20px 22px}.fr-rules p{margin-bottom:12px;font-size:14.5px;line-height:1.6}.fr-rules p:last-child{margin-bottom:0}.fr-rules .muted{color:var(--ink-dim);font-size:13px}.fr-foot{font-family:var(--font-mono);letter-spacing:.02em;color:var(--ink-faint);margin-top:22px;font-size:11px;font-weight:500}.fr-foot a{color:var(--accent);border-bottom:1px solid var(--line);text-decoration:none}@media (max-width:640px){.headline{max-width:none;font-size:30px}:root{--board-cols:22px 1fr 64px 80px}.reg-head .col-delta,.reg-row .col-delta,.fr-head .col-delta,.fr-row .col-delta{display:none}.pm-grid{grid-template-columns:1fr}.chrome-inner,.page{padding-left:20px;padding-right:20px}}.challenge-attest{--bg:#f7f6ef;--surface:#fff;--line:#dad9d2;--line-faint:#eeede6;--ink:#111;--ink-dim:#4e4b48;--ink-faint:#6f6d69;--accent:#4137ff;--accent-soft:#efebfe;--accent-strong:var(--accent);--good:#0e8754;--bad:#c13c36;--hero:#010080;--hero-edge:#4137ff;--hero-ink:#fff;--hero-dim:#c8f3ff;--hero-faint:#8db9d2;--lift:0 18px 40px -18px #11111138;background:var(--bg)}body:has(.challenge-attest){background:#f7f6ef}.ch-page{gap:22px;max-width:1120px;padding:26px 32px 64px;display:grid}.ch-strip{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:18px;display:flex}.ch-brand{letter-spacing:-.01em;align-items:center;gap:14px;font-size:19px;display:flex}.ch-brand a{color:var(--ink);font-weight:500;text-decoration:none}.ch-brand-sep{color:var(--line);font-weight:300}.ch-brand-name{color:var(--accent);font-weight:500}.ch-strip-nav{gap:10px;display:flex}.ch-pill{color:var(--ink);background:var(--surface);border:1px solid var(--line);transition:border-color .18s var(--chrome-motion-ease);border-radius:9px;align-items:center;padding:8px 15px;font-size:13.5px;font-weight:500;text-decoration:none;display:inline-flex}.ch-pill:hover{border-color:var(--accent);color:var(--accent)}.hero-card{background:var(--hero);color:var(--hero-ink);box-shadow:var(--lift);border-radius:18px;padding:38px 36px 32px;position:relative;overflow:hidden}.hero-said{align-items:flex-start;gap:20px;min-width:0;max-width:52rem;display:flex}.hero-mark{opacity:.95;flex:none;width:62px;height:62px}.hero-h{letter-spacing:-.022em;font-size:41px;font-weight:500;line-height:1.16}.hero-plate{background:var(--hero-ink);color:var(--hero);font-family:var(--font-mono);letter-spacing:-.04em;vertical-align:.02em;border-radius:3px;place-items:center;padding:.04em .18em;font-size:.86em;font-weight:500;display:inline-grid}.hero-i{width:23px;height:23px;color:var(--hero-dim);vertical-align:.22em;cursor:help;border:1px solid #fff6;border-radius:50%;place-items:center;margin-left:9px;font-size:12px;display:inline-grid}.hero-chart{border:1px solid #ffffff3d;border-radius:13px;margin-top:30px;padding:14px 16px 12px}.hc-bar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:16px;display:flex}.hc-seg{gap:7px;display:flex}.hc-chip{color:var(--hero-dim);cursor:pointer;transition:background .15s var(--chrome-motion-ease),color .15s var(--chrome-motion-ease);background:0 0;border:1px solid #ffffff4d;border-radius:7px;padding:5px 11px;font-size:12px;font-weight:500}.hc-chip:hover{color:var(--hero-ink);background:#ffffff1f}.hc-chip.on{background:var(--hero-ink);color:var(--hero);border-color:var(--hero-ink)}.hc-chip.on:hover{background:var(--hero-ink);color:var(--hero)}.hc-div{background:#ffffff3d;align-self:stretch;width:1px;margin:0 4px}.hc-dot.void{fill:var(--hero);stroke:var(--hero-ink);stroke-width:1.6px}.hc-legend{flex-wrap:wrap;gap:24px;margin-top:14px;display:flex}.hc-key{font-family:var(--font-mono);color:var(--hero-dim);align-items:center;gap:9px;font-size:11.5px;display:inline-flex}.hc-key i{border-radius:2px;flex:none;width:18px;height:2px;display:inline-block}.hc-key em{color:var(--hero-ink);font-style:normal}.hc-plot{height:262px;position:relative}.hc-plot svg{width:100%;height:100%;display:block;overflow:visible}.hc-ylab{font-family:var(--font-mono);fill:var(--hero-faint);font-size:10.5px}.hc-grid{stroke:#ffffff29;stroke-width:1px}.hc-base{stroke:#ffffff8c;stroke-width:1px;stroke-dasharray:2 4}.hc-line{stroke:var(--hero-ink);stroke-width:2px;fill:none}.hc-dot{fill:var(--hero-ink)}.hc-tag{font-family:var(--font-mono);fill:var(--hero-dim);font-size:10.5px}.hc-foot{font-family:var(--font-mono);color:var(--hero-faint);margin-top:10px;font-size:10.5px}.rc{background:var(--surface);border:1px solid var(--line-faint);border-radius:18px;padding:26px 28px 24px}.rc-top{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:24px;display:flex}.rc-tabs{gap:22px;display:flex}.rc-tab{color:var(--ink-faint);cursor:pointer;transition:color .15s var(--chrome-motion-ease);border-bottom:2px solid #0000;padding:0 0 8px;font-size:17px;font-weight:500}.rc-tab.on{color:var(--ink);border-bottom-color:var(--accent)}.rc-tab:not(.on):hover{color:var(--ink-dim)}.rc-record{flex-direction:column;align-items:flex-end;gap:1px;display:flex}.rc-record-k{font-family:var(--font-mono);letter-spacing:.16em;text-transform:uppercase;color:var(--ink-faint);font-size:10px}.rc-record-v{font-family:var(--font-mono);letter-spacing:-.03em;font-variant-numeric:tabular-nums;font-size:38px;font-weight:500;line-height:1.05}.rc-record-u{font-family:var(--font-mono);color:var(--ink-faint);font-size:10.5px}.rc-count{color:var(--ink-dim);margin-top:14px;font-size:13.5px}.rc-caption{font-family:var(--font-mono);letter-spacing:.13em;text-transform:uppercase;color:var(--ink-faint);margin:20px 0 10px;font-size:10px}.rc-caption b{color:var(--good);font-weight:500}.rc-table{border:1px solid var(--line-faint);border-radius:10px;overflow:hidden}.rc-row-h{grid-template-columns:1fr 106px 88px 96px 132px 20px}.rc-row-b{grid-template-columns:1fr 132px 116px 20px}.rc-head,.rc-row{align-items:center;gap:14px;padding:13px 16px;display:grid}.rc-head{background:var(--hero);color:var(--hero-ink)}.rc-head span{font-family:var(--font-mono);letter-spacing:.14em;text-transform:uppercase;font-size:10px;font-weight:500}.rc-head .r,.rc-row .r{text-align:right}.rc-row{border-top:1px solid var(--line-faint);cursor:pointer;background:var(--surface);transition:background .12s var(--chrome-motion-ease)}.rc-row:hover,.rc-row:focus{background:var(--accent-soft);outline:none}.rc-row.lead{background:color-mix(in srgb,var(--accent-soft) 60%,transparent)}.rc-row.void{opacity:.6}.rc-who{align-items:center;gap:10px;min-width:0;display:flex}.rc-rank{font-family:var(--font-mono);color:var(--ink-faint);font-variant-numeric:tabular-nums;font-size:11.5px}.rc-face{object-fit:cover;background:var(--line-faint);border-radius:50%;flex:none;width:22px;height:22px}.rc-mark{width:22px;height:22px;color:var(--accent);background:var(--accent-soft);border-radius:50%;flex:none;place-items:center;font-size:11px;display:grid}.rc-name{color:var(--ink);white-space:nowrap;font-size:14.5px;font-weight:500}.rc-model{font-family:var(--font-mono);color:var(--ink-dim);white-space:nowrap;text-overflow:ellipsis;font-size:11.5px;overflow:hidden}.rc-crown{color:var(--accent);font-size:12px}.rc-runs{font-family:var(--font-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--ink-dim);border:1px solid var(--line);white-space:nowrap;border-radius:5px;padding:2px 6px;font-size:9.5px}.rc-fig{font-family:var(--font-mono);font-variant-numeric:tabular-nums;flex-direction:column;align-items:flex-end;gap:2px;font-size:15px;font-weight:600;display:flex}.rc-fig em{font-size:11px;font-style:normal;font-weight:500}.rc-fig em.up{color:var(--good)}.rc-fig em.flat{color:var(--ink-faint)}.rc-num{font-family:var(--font-mono);color:var(--ink-dim);font-variant-numeric:tabular-nums;font-size:13px}.rc-at{font-family:var(--font-mono);color:var(--ink-faint);font-size:11.5px}.rc-chev{color:var(--ink-faint);text-align:right;font-size:16px}.rc-note{color:var(--ink-faint);max-width:76ch;margin-top:16px;font-size:12.5px;line-height:1.55}.modal.wide{max-width:680px}.sd-head{flex-wrap:wrap;align-items:center;gap:11px;min-width:0;display:flex}.sd-face{object-fit:cover;background:var(--line-faint);border-radius:50%;width:30px;height:30px}.sd-mark{width:30px;height:30px;color:var(--accent);background:var(--accent-soft);border-radius:50%;place-items:center;font-size:13px;display:grid}.sd-who{font-size:16px;font-weight:600}.sd-model{font-family:var(--font-mono);color:var(--ink-dim);font-size:12px}.sd-badge{font-family:var(--font-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--good);border:1px solid color-mix(in srgb,var(--good) 40%,transparent);border-radius:5px;padding:2px 7px;font-size:9.5px}.sd-badge.void{color:var(--bad);border-color:color-mix(in srgb,var(--bad) 40%,transparent)}.sd-pr{font-family:var(--font-mono);color:var(--accent);border:1px solid var(--line);border-radius:7px;padding:5px 10px;font-size:11.5px;text-decoration:none}.sd-pr:hover{border-color:var(--accent)}.sd-stats{grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:22px;display:grid}.sd-stats>div{border:1px solid var(--line-faint);border-radius:10px;flex-direction:column;gap:3px;padding:13px 15px;display:flex}.sd-k{font-family:var(--font-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--ink-faint);font-size:9.5px}.sd-v{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:-.02em;font-size:23px;font-weight:500}.sd-v.up{color:var(--good)}.sd-v.flat{color:var(--ink-faint)}.sd-v.sd-date{letter-spacing:0;font-size:15px}.sd-sub{font-family:var(--font-mono);color:var(--ink-faint);font-size:10.5px;line-height:1.4}.sd-section{flex-direction:column;gap:8px;margin-bottom:20px;display:flex}.sd-tiers{flex-wrap:wrap;gap:10px;display:flex}.sd-tier{font-family:var(--font-mono);border:1px solid var(--line-faint);color:var(--ink-dim);border-radius:7px;padding:5px 10px;font-size:12px}.sd-tier em{color:var(--ink-faint);margin-right:6px;font-style:normal}.sd-tier.all{border-color:color-mix(in srgb,var(--good) 35%,transparent);color:var(--good)}.sd-tier.none{border-color:color-mix(in srgb,var(--bad) 30%,transparent);color:var(--bad)}.sd-note p{color:var(--ink-dim);margin-bottom:11px;font-size:14px;line-height:1.65}.sd-note p:last-child{margin-bottom:0}.hero-fan{aspect-ratio:1;width:52%;color:var(--hero-ink);pointer-events:none;position:absolute;top:-14%;right:-6%}.hero-said,.hero-chart{z-index:1;position:relative}.hero-pick{display:inline-block;position:relative}.hero-pick select{opacity:0;cursor:pointer;width:100%;height:100%;font:inherit;position:absolute;inset:0}.hero-pick-face{border-bottom:2px solid #ffffff57;align-items:center;gap:9px;padding-bottom:2px;display:inline-flex}.hero-pick-face em{opacity:.75;font-size:.6em;font-style:normal}.hero-pick:hover .hero-pick-face{border-bottom-color:var(--hero-ink)}.hero-h-rest{display:inline}.ch-foot{border-top:1px solid var(--line);margin-top:6px;padding-top:20px}.ch-foot-top{font-family:var(--font-mono);color:var(--ink-faint);flex-wrap:wrap;justify-content:space-between;gap:26px;font-size:11px;line-height:1.6;display:flex}.ch-foot-harness a{color:var(--accent);text-decoration:none}.ch-foot-note{max-width:62ch}.ch-foot-legal{border-top:1px solid var(--line-faint);color:var(--ink-dim);flex-wrap:wrap;justify-content:space-between;gap:18px;margin-top:18px;padding-top:16px;font-size:12.5px;display:flex}.ch-foot-legal a{color:var(--ink-dim)}.ch-foot-links{gap:16px;display:flex}.how-body{padding-top:0}.how-grid{grid-template-columns:1fr 1fr;gap:18px 24px;margin-bottom:6px;display:grid}.how-grid>div{flex-direction:column;gap:5px;display:flex}.how-k{font-family:var(--font-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--ink-faint);font-size:10px}.how-v{color:var(--ink-dim);font-size:14px;line-height:1.55}.how-h{font-family:var(--font-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--ink-faint);margin:24px 0 8px;font-size:10px;font-weight:500}.ch-tier{border-bottom:1px solid var(--line-faint);grid-template-columns:26px 1fr 84px;align-items:baseline;gap:14px;padding:10px 0;display:grid}.ch-tier-n{font-family:var(--font-mono);color:var(--ink-faint);font-size:11px}.ch-tier-w{color:var(--ink-dim);font-size:14px}.ch-tier-s{font-family:var(--font-mono);letter-spacing:.05em;text-transform:uppercase;color:var(--ink-faint);text-align:right;font-size:10px}.ch-tier-s.open{color:var(--accent)}.how-foot{color:var(--ink-dim);margin-top:12px;font-size:13.5px;line-height:1.6}.how-foot a{color:var(--accent);text-decoration:none}.ch-code{font-family:var(--font-mono);background:var(--bg);border-radius:5px;padding:2px 6px;font-size:12.5px}@media (max-width:860px){.ch-page{padding:20px 18px 48px}.hero-card{padding:26px 20px 22px}.hero-h{font-size:29px}.hero-mark{width:44px;height:44px}.hero-said{gap:14px}.how-grid{grid-template-columns:1fr}.rc{padding:20px 16px 18px}.rc-row-h{grid-template-columns:1fr 92px 108px 18px}.rc-row-b{grid-template-columns:1fr 108px 18px}.rc-head span:nth-child(3),.rc-head span:nth-child(4),.rc-row .rc-num{display:none}.rc-row-b .rc-num{display:block}.rc-model{display:none}.sd-stats{grid-template-columns:1fr}.hero-fan{display:none}.hc-plot{height:196px}}