/* CLeague. Native layout, logical spacing and a deliberately quiet visual hierarchy. */
:root{color-scheme:dark;--bg:#0b0d14;--sidebar:#0e1019;--panel:#121620;--panel-hi:#171c28;--line:#252a38;--text:#f1f2f7;--muted:#9299ad;--faint:#666f86;--accent:#a89afb;--accent-solid:#aa9cff;--accent-text:#161126;--green:#8fdcc6;--amber:#eed097;--red:#efaaa8;--radius:17px;--shadow:0 20px 80px #0004;--sidebar-width:228px;font-family:Inter,"Segoe UI",system-ui,-apple-system,BlinkMacSystemFont,"Noto Sans","Noto Sans JP","Microsoft YaHei",sans-serif;font-size:14px;line-height:1.6}
:root[data-theme=light]{color-scheme:light;--bg:#f6f7fb;--sidebar:#fff;--panel:#fff;--panel-hi:#f2f3f9;--line:#e0e3ee;--text:#1b2033;--muted:#626c82;--faint:#7e889b;--accent:#6a55c9;--accent-solid:#7460cf;--accent-text:#fff;--green:#246c58;--amber:#806025;--red:#b54546;--shadow:0 20px 70px #263c6610}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);min-width:320px}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}a:hover{color:var(--accent)}button{cursor:pointer}button:disabled{opacity:.45;cursor:not-allowed}button,input,textarea,select{outline-offset:4px}button:focus-visible,a:focus-visible{outline:2px solid var(--accent);outline-offset:4px}input:focus,select:focus,textarea:focus{outline:2px solid color-mix(in srgb,var(--accent) 55%,transparent);border-color:var(--accent)}h1,h2,h3,p{margin-block-start:0}h1,h2,h3{line-height:1.25;letter-spacing:-.035em}h1{font-size:clamp(30px,3.2vw,46px);font-weight:650;margin-block-end:18px}h2{font-size:23px;font-weight:620;margin-block-end:12px}h3{font-size:17px;font-weight:620;margin-block-end:10px}p{color:var(--muted);line-height:1.8;margin-block-end:18px}small{font-size:11px;color:var(--muted)}hr{border:0;border-block-start:1px solid var(--line);margin-block:24px}[hidden]{display:none!important}pre,code,.code-editor{font-family:"Cascadia Code","SFMono-Regular",Consolas,monospace}.icon{width:19px;height:19px;flex-shrink:0;vertical-align:middle}.muted{color:var(--muted)}.break{overflow-wrap:anywhere}.numeric{font-variant-numeric:tabular-nums}.danger-text{color:var(--red)!important}.ugc{white-space:pre-wrap;overflow-wrap:anywhere;color:var(--text)}
.sidebar{position:fixed;inset-block:0;inset-inline-start:0;width:var(--sidebar-width);z-index:40;padding:30px 17px 18px;background:var(--sidebar);border-inline-end:1px solid var(--line);display:flex;flex-direction:column;overflow-y:auto}.brand{font-size:29px;font-weight:730;letter-spacing:-1.6px;padding-inline:15px;color:var(--text)}.brand-dot{color:var(--accent)}.brand-description{font-size:10px;letter-spacing:.11em;text-transform:uppercase;color:var(--faint);margin:0 0 25px;padding-inline:15px}.nav-section-label{font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--faint);margin:19px 14px 9px}.nav-link{min-height:43px;display:flex;align-items:center;gap:12px;padding:10px 13px;border-radius:9px;margin-block:3px;color:var(--muted);font-size:12px;font-weight:520;transition:background .15s,color .15s}.nav-link .icon{width:17px;height:17px}.nav-link:hover{background:var(--panel-hi);color:var(--text)}.nav-link.active{background:color-mix(in srgb,var(--accent) 13%,transparent);color:var(--accent)}.nav-indicator{margin-inline-start:auto;background:color-mix(in srgb,var(--accent) 13%,transparent);color:var(--accent);font-size:10px;padding:0 6px;border-radius:4px}.sidebar-bottom{margin-block-start:auto;padding:30px 14px 0;font-size:10px}.sidebar-bottom p{font-size:10px;line-height:1.8;margin-block:12px;color:var(--faint)}.sidebar-bottom>div:last-child{display:flex;gap:9px;color:var(--muted)}.protocol-status{display:flex;align-items:center;gap:9px;color:var(--green);font-size:11px}.pulse-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--green);box-shadow:0 0 12px color-mix(in srgb,var(--green) 30%,transparent)}.app-main{margin-inline-start:var(--sidebar-width)}.topbar{height:76px;position:sticky;inset-block-start:0;z-index:30;display:flex;align-items:center;justify-content:space-between;padding-inline:38px;gap:20px;border-block-end:1px solid var(--line);background:color-mix(in srgb,var(--bg) 90%,transparent);backdrop-filter:blur(15px)}.topbar-start,.topbar-tools,.breadcrumb{display:flex;align-items:center;gap:15px}.breadcrumb{color:var(--muted);font-size:12px;gap:12px}.breadcrumb .icon{width:12px;height:12px;color:var(--faint)}.breadcrumb span:last-child{color:var(--text)}.topbar-tools{gap:13px}.global-search{height:34px;display:flex;align-items:center;gap:8px;color:var(--muted)}.global-search input{width:155px;border:0;background:none;padding:4px 0;font-size:12px}.global-search .icon{width:16px}.global-search kbd{border:1px solid var(--line);font-size:10px;border-radius:4px;padding-inline:5px;color:var(--faint)}.locale-switch{display:flex;align-items:center;gap:5px;color:var(--muted)}.locale-switch .icon{width:16px}.locale-switch select{background:none;border:0;max-width:113px;padding:6px 15px 6px 2px;font-size:11px}.icon-button{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border:1px solid transparent;background:transparent;color:var(--muted);border-radius:9px}.icon-button:hover{border-color:var(--line);background:var(--panel-hi);color:var(--text)}.account-button{display:flex;align-items:center;gap:9px;font-size:12px;max-width:165px}.account-button>span:last-child{max-width:100px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.environment-banner{display:flex;align-items:center;justify-content:center;gap:9px;min-height:32px;padding:6px 20px;font-size:10px;color:var(--muted);background:color-mix(in srgb,var(--accent) 4%,transparent);border-block-end:1px solid color-mix(in srgb,var(--line) 60%,transparent)}.environment-banner .icon{width:13px;height:13px}main{outline:none;padding:36px 38px 60px;max-width:1440px;margin-inline:auto}.page-content{animation:appear .23s ease}.footer{border-block-start:1px solid var(--line);padding:24px 38px;display:flex;justify-content:space-between;gap:18px;font-size:10px;color:var(--faint)}.footer a{display:flex;gap:8px;align-items:center}.footer .icon{width:13px;height:13px}.mobile-only,.mobile-shade{display:none}.skip-link{position:fixed;inset-inline-start:15px;inset-block-start:-80px;z-index:200;background:var(--accent);color:var(--accent-text);padding:12px 20px;border-radius:8px}.skip-link:focus{inset-block-start:10px}
.button{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:40px;padding:10px 17px;border-radius:9px;border:1px solid transparent;font-size:12px;font-weight:600;line-height:1.4;transition:transform .15s,background .15s,border-color .15s}.button.primary{background:var(--accent-solid);color:var(--accent-text)}.button.primary:hover{filter:brightness(1.06);transform:translateY(-1px)}.button.secondary{background:var(--panel);border-color:var(--line);color:var(--text)}.button.secondary:hover{background:var(--panel-hi);border-color:var(--faint)}.button.ghost{background:transparent;color:var(--muted)}.button.ghost:hover{color:var(--text);background:var(--panel-hi)}.button.danger{background:var(--red);color:var(--bg)}.button .icon{width:16px;height:16px}.text-button,.comment-actions button{background:none;border:0;color:var(--accent);padding:8px 0;font-size:12px;cursor:pointer;text-align:start}.text-link{display:inline-flex;align-items:center;gap:10px;font-size:12px;color:var(--muted)}.text-link .icon{width:16px}.actions{display:flex;gap:10px;align-items:center;margin-block:20px 0}.actions.wrap{flex-wrap:wrap}.actions .button{flex-shrink:0}.eyebrow{font-size:10px;font-weight:550;letter-spacing:.13em;text-transform:uppercase;color:var(--muted);margin-block-end:15px;display:flex;align-items:center;gap:9px}.eyebrow.pill{display:inline-flex;border:1px solid var(--line);border-radius:30px;padding:6px 11px;letter-spacing:.075em;font-size:9px}.badge{font-size:9px;font-weight:550;display:inline-flex;align-items:center;white-space:nowrap;background:var(--panel-hi);color:var(--muted);border:1px solid var(--line);border-radius:5px;padding:3px 7px;line-height:1.4}.badge.blue{background:color-mix(in srgb,var(--accent) 9%,transparent);border-color:color-mix(in srgb,var(--accent) 25%,transparent);color:var(--accent)}.badge.green{background:color-mix(in srgb,var(--green) 7%,transparent);border-color:color-mix(in srgb,var(--green) 15%,transparent);color:var(--green)}.badge.amber{background:color-mix(in srgb,var(--amber) 8%,transparent);border-color:color-mix(in srgb,var(--amber) 20%,transparent);color:var(--amber)}.badge.red{background:color-mix(in srgb,var(--red) 8%,transparent);border-color:color-mix(in srgb,var(--red) 20%,transparent);color:var(--red)}
.hero{border:1px solid var(--line);border-radius:21px;min-height:388px;display:grid;grid-template-columns:1.15fr .85fr;overflow:hidden;background:radial-gradient(ellipse at 89% 25%,#8071c818 0,transparent 60%),var(--panel);position:relative}.hero-copy{padding:39px 0 35px 36px;position:relative;z-index:1}.hero h1{font-size:clamp(32px,3.4vw,53px);letter-spacing:-.06em;font-weight:620;line-height:1.13;margin-block-end:19px}.hero h1 span{color:var(--accent)}.hero-copy>p{font-size:12px;line-height:1.95;max-width:435px;margin-block-end:25px}.hero .actions{margin-block-start:0}.hero-foot{display:flex;align-items:center;gap:7px;color:var(--faint);font-size:10px;margin-block-start:27px}.hero-foot .icon{width:13px}.hero-art{position:relative;min-width:0;overflow:hidden;display:grid;place-items:center;perspective:800px}.hero-art:before{content:"";position:absolute;inset:10%;border-radius:50%;background:radial-gradient(ellipse,#aa9bff19,transparent 65%)}.hero-art:after{content:"";position:absolute;inset:0;background-image:linear-gradient(#9993b908 1px,transparent 1px),linear-gradient(90deg,#9993b908 1px,transparent 1px);background-size:32px 32px;mask-image:radial-gradient(ellipse,#000,transparent 70%)}.orbit{position:absolute;width:280px;height:280px;border:1px solid #a092e740;border-radius:50%;box-shadow:inset 0 0 20px #ab9cff05,0 0 20px #ab9cff05}.orbit.o1{transform:rotateX(63deg) rotateY(13deg) rotateZ(-25deg);border-color:#ab9bff70}.orbit.o2{transform:rotateX(18deg) rotateY(65deg) rotateZ(30deg);width:300px;height:300px}.orbit.o3{transform:rotateX(63deg) rotateY(-25deg) rotateZ(40deg);width:350px;height:350px;border-color:#8ccef145}.orbit-core{position:relative;display:flex;align-items:center;justify-content:center;flex-direction:column;width:135px;height:135px;font-size:53px;letter-spacing:-.08em;font-weight:650;border-radius:31px;color:#d2c8ff;background:linear-gradient(130deg,#8072b02b,#1c19385c);border:1px solid #b2a3ff24;box-shadow:0 0 75px #a19af714;transform:rotate(-9deg);text-shadow:0 0 20px #a897ff40;z-index:1}.orbit-core span{font-size:7px;letter-spacing:.34em;margin-inline-start:4px}.orbit-star{position:absolute;width:9px;height:9px;border:2px solid #c9befe;border-radius:50%;background:#a692ff;box-shadow:0 0 25px #a692ff90}.s1{inset-inline-start:15%;inset-block-start:36%}.s2{inset-inline-end:15%;inset-block-end:32%;width:6px;height:6px;background:#dbe4fd}.s3{inset-block-start:16%;inset-inline-end:38%;width:5px;height:5px;background:#92d9c4;border-color:#92d9c4}.art-tag{position:absolute;inset-block-start:29px;inset-inline-end:25px;font-size:10px;color:var(--faint);font-family:monospace;letter-spacing:.1em}.art-caption{position:absolute;inset-block-end:28px;inset-inline-end:28px;font-size:8px;letter-spacing:.22em;color:var(--faint)}.stats-strip{display:grid;grid-template-columns:repeat(4,1fr);padding-block:23px 26px;margin-block-end:18px;border-block-end:1px solid var(--line)}.stats-strip>div{display:flex;align-items:center;justify-content:center;gap:14px;border-inline-end:1px solid var(--line)}.stats-strip>div:first-child{justify-content:flex-start;padding-inline-start:6px}.stats-strip>div:last-child{border:0}.stats-strip strong{font-size:23px;font-weight:570;letter-spacing:-.05em;color:var(--text)}.stats-strip span{font-size:10px;color:var(--muted)}.section-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-block:28px 19px}.section-heading h2{font-size:21px;margin-block-end:5px}.section-heading p{font-size:11px;margin:0}.section-heading>.button{white-space:nowrap}.arena-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:17px}.arena-card{border:1px solid var(--line);border-radius:var(--radius);padding:24px 22px 18px;background:var(--panel);transition:transform .18s,border-color .18s;display:flex;flex-direction:column}.arena-card:hover{transform:translateY(-4px);border-color:color-mix(in srgb,var(--accent) 50%,var(--line));color:var(--text)}.arena-top{display:flex;align-items:center;justify-content:space-between;margin-block-end:25px}.arena-symbol{display:flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:12px;color:#b1a3fa;background:#a797fa12;border:1px solid #b09cfa20}.arena-html .arena-symbol{color:#8cceb7;background:#7ce0b712;border-color:#7ce0b71a}.arena-image .arena-symbol{color:#deba92;background:#e8bd8012;border-color:#e8bd801a}.arena-symbol .icon{width:24px;height:24px}.arena-top .counter{color:var(--faint);font-size:10px;font-family:monospace}.arena-card h3{margin-block:16px 11px;font-size:19px}.arena-card>p{font-size:11px;line-height:1.85;flex:1;margin-block-end:20px}.arena-bottom{padding-block-start:16px;border-block-start:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;color:var(--muted);font-size:10px}.arena-bottom>span{display:flex;align-items:center;gap:7px}.arena-bottom .icon{width:14px}.work-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.work-card{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--panel);transition:border-color .15s,transform .15s;min-width:0}.work-card:hover{border-color:color-mix(in srgb,var(--accent) 45%,var(--line));transform:translateY(-2px)}.work-cover{display:block;aspect-ratio:1.44;background:#111522;position:relative;overflow:hidden}.work-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}.work-card:hover .work-cover img{transform:scale(1.025)}.cover-placeholder{height:100%;display:grid;place-items:center;background:radial-gradient(ellipse,#8f82d824,transparent)}.cover-placeholder .icon{width:60px;height:60px;color:var(--faint)}.cover-label{position:absolute;inset-block-start:12px;inset-inline-start:12px;padding:3px 8px;border:1px solid #fff2;border-radius:5px;background:#0d1228b0;font-size:8px;color:#e8e8f2;backdrop-filter:blur(4px)}.demo-corner{position:absolute;inset-block-end:10px;inset-inline-end:10px;color:#e4c48b;font-size:8px;background:#1d1b2599;border:1px solid #d8bc7e25;border-radius:4px;padding:3px 6px}.work-card-body{padding:17px 17px 15px}.work-title{display:block;font-size:14px;font-weight:600;letter-spacing:-.02em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.work-author{display:flex;align-items:center;gap:8px;font-size:10px;color:var(--muted);margin-block:12px}.heart-count{margin-inline-start:auto;display:flex;align-items:center;gap:5px;color:var(--muted)}.heart-count .icon{width:12px;height:12px}.work-runtime{font-size:9px;color:var(--faint);display:flex;gap:7px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.separator{color:var(--line)}.avatar{display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;width:36px;height:36px;border-radius:50%;background:linear-gradient(130deg,#413d61,#252441);color:#cbc0ed;font-size:13px;font-weight:550;overflow:hidden;border:1px solid #b9aefa2a}.avatar.small{width:24px;height:24px;font-size:10px}.avatar.large{width:80px;height:80px;font-size:28px}.avatar img{width:100%;height:100%;object-fit:cover}.evidence-section{margin-block:38px}.how-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;margin-block:38px 22px;padding-block:24px 0;border-block-start:1px solid var(--line)}.step-number{font-family:monospace;font-size:11px;color:var(--accent);margin-block-end:16px;display:block}.how-grid h3{font-size:15px}.how-grid p{font-size:11px;margin:0}.empty{display:flex;flex-direction:column;justify-content:center;align-items:center;gap:8px;text-align:center;padding:52px 25px;min-height:220px;color:var(--muted);grid-column:1/-1}.empty>.icon{width:32px;height:32px;color:var(--accent);margin-block-end:10px}.empty h3{color:var(--text);font-size:17px;margin:0}.empty p{font-size:12px;max-width:570px;margin:0}
.page-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-block-end:29px}.page-heading p{font-size:13px;max-width:720px;margin:0}.page-heading .eyebrow{margin-block-end:13px}.page-heading h1{font-size:34px;margin-block-end:14px}.panel{border:1px solid var(--line);border-radius:var(--radius);padding:25px;background:var(--panel);min-width:0}.panel.no-padding{padding:0;overflow:hidden}.panel+ .panel{margin-block-start:22px}.notice{display:flex;align-items:flex-start;gap:10px;color:var(--muted);padding:14px 16px;border:1px solid var(--line);border-radius:10px;background:color-mix(in srgb,var(--panel-hi) 60%,transparent);font-size:11px;margin-block:14px}.notice .icon{width:15px;height:15px;margin-block-start:2px}.notice.amber{border-color:color-mix(in srgb,var(--amber) 20%,transparent);background:color-mix(in srgb,var(--amber) 5%,transparent);color:var(--amber)}.notice.red{border-color:color-mix(in srgb,var(--red) 25%,transparent);color:var(--red)}.filter-bar{display:flex;align-items:center;gap:12px;margin-block:22px}.filter-bar.wrap{flex-wrap:wrap;align-items:end}.filter-bar>input{flex:1;min-width:140px}.filter-bar select{min-width:140px}.filter-bar .field{margin:0;flex:1;min-width:170px}.filter-bar .field>span{font-size:10px}input,select,textarea{border:1px solid var(--line);background:var(--bg);color:var(--text);padding:10px 12px;border-radius:8px;max-width:100%;min-width:0;font-size:12px}input::placeholder,textarea::placeholder{color:var(--faint)}select{min-height:39px}textarea{width:100%;resize:vertical;line-height:1.7}input[type=range]{accent-color:var(--accent);padding:0;width:100%}input[type=checkbox]{accent-color:var(--accent);width:16px;height:16px;margin:3px 0 0;flex-shrink:0}input[type=file]{display:block;cursor:pointer;width:100%;padding:14px}input[type=file]::file-selector-button{background:var(--panel-hi);color:var(--text);border:1px solid var(--line);padding:6px 10px;border-radius:6px;margin-inline-end:12px;cursor:pointer}.field{display:flex;flex-direction:column;gap:8px;margin-block-end:17px}.field>span{font-size:11px;font-weight:550;color:var(--muted)}.field>small{font-size:10px}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 18px}.checkbox{display:flex;gap:11px;align-items:flex-start;margin-block:17px;font-size:11px;color:var(--muted)}.checkbox a{color:var(--accent)}.runtime-form{border-block-start:1px solid var(--line);padding-block-start:20px;margin-block-start:20px}.load-more{display:flex;justify-content:center;margin-block:28px}.page-loader{padding:100px 30px;display:flex;align-items:center;justify-content:center;gap:15px;color:var(--muted)}.spinner{display:inline-block;border:2px solid currentColor;border-inline-end-color:transparent;width:15px;height:15px;border-radius:50%;animation:spin .8s linear infinite}.error-panel{text-align:center;margin-block:45px}.error-panel>.icon{width:35px;height:35px;color:var(--amber);margin-block-end:20px}.error-panel p{font-size:12px}.back-link{display:inline-flex;align-items:center;gap:8px;font-size:11px;color:var(--muted);margin-block-end:22px}.challenge-hero{padding:33px;border:1px solid var(--line);border-radius:20px;margin-block-end:24px;background:radial-gradient(ellipse at 95% 90%,#a599ea15,transparent 60%),var(--panel)}.challenge-hero h1{font-size:36px}.challenge-hero p{max-width:760px;font-size:13px}.inline-meta{display:flex;gap:22px;flex-wrap:wrap;font-size:11px;color:var(--muted);align-items:center;margin-block:12px}.inline-meta>span{display:flex;align-items:center;gap:8px}.inline-meta .icon{width:14px;height:14px}.inline-meta code{color:var(--accent)}.detail-columns{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(0,1fr);gap:23px;margin-block:23px}.detail-columns>.panel+.panel{margin-block-start:0}.entry-panel{position:sticky;inset-block-start:95px}.entry-panel>.button{width:100%;margin-block:6px}.entry-panel p{font-size:12px}.metadata{display:flex;flex-direction:column;gap:12px;margin:20px 0}.metadata>div{display:flex;justify-content:space-between;gap:20px;font-size:11px}.metadata dt{color:var(--muted);flex-shrink:0}.metadata dd{margin:0;text-align:end;overflow-wrap:anywhere}.prose{line-height:1.9}.prose p{font-size:13px}.prose ol{padding-inline-start:20px;color:var(--muted);font-size:12px}.prose li{padding-inline-start:5px;margin-block:11px}.prose h2{font-size:22px}.prose section+section{margin-block-start:35px;padding-block-start:24px;border-block-start:1px solid var(--line)}.sealed{text-align:center;border:1px dashed var(--line);background:var(--bg);border-radius:12px;padding:32px 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.modal>.toast{max-width:calc(100% - 32px)}