.sky-shell{--ui-plane:#f8f8f5;--ui-surface:#fff;--ui-surface2:#f1f4ef;--ui-ink:#121412;--ui-ink2:#4a4d48;--ui-muted:#686a64;--ui-line:#dfe3dc;--ui-forest:#0e7a54;--ui-mint:#e7f5ee;--ui-green:#0b5c40;--ui-amber-bg:#fff2dc;--ui-amber:#915300;--ui-slate-bg:#e9eef1;--ui-slate:#41505a;--ui-sky-bg:#e4f0f8;--ui-sky:#1f5f8b;color:var(--ui-ink);font:16px/1.65 system-ui,-apple-system,"Pretendard","Apple SD Gothic Neo",sans-serif;word-break:keep-all;overflow-wrap:anywhere;box-sizing:border-box}
[data-theme=dark] .sky-shell{--ui-plane:#0f1110;--ui-surface:#181b19;--ui-surface2:#1f2421;--ui-ink:#f1f2ec;--ui-ink2:#c4c6bd;--ui-muted:#979a91;--ui-line:#394039;--ui-forest:#6bd8ae;--ui-mint:#1c2e26;--ui-green:#9be6c6;--ui-amber-bg:#3a2a10;--ui-amber:#f3c27a;--ui-slate-bg:#26313a;--ui-slate:#c9d4dc;--ui-sky-bg:#1b2c3a;--ui-sky:#9fcdf0}
.sky-shell *,.sky-shell *:before,.sky-shell *:after{box-sizing:border-box}
.sky-shell a{color:inherit;text-decoration:none}
.sky-shell a:hover,.sky-shell button:hover{border-color:var(--ui-forest)}
.sky-shell :focus-visible{outline:3px solid var(--ui-forest);outline-offset:2px}
.sky-shell button{font:inherit;color:inherit;cursor:pointer}
.sky-shell button:disabled{opacity:.4;cursor:default}
.sky-shell a:active,.sky-shell button:active{transform:translateY(1px)}
.sky-shell img{display:block;max-width:100%;height:auto}
.sky-shell .ui-icon{display:inline-block;width:18px;height:18px;flex:none;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;vertical-align:middle}
.sky-shell .ui-skip{position:absolute;top:-100px;left:12px;z-index:100;padding:10px 14px;background:var(--ui-ink);color:var(--ui-plane)}
.sky-shell .ui-skip:focus{top:8px}
.sky-shell.ui-header{position:relative;background:var(--ui-plane);border-bottom:1px solid var(--ui-line);z-index:20;width:100%}
.sky-shell.ui-sticky{position:sticky;top:0}
.sky-shell .ui-bar{max-width:1120px;padding:10px 24px;margin:auto;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.sky-shell .ui-logo{min-height:44px;display:flex;align-items:center;gap:10px;margin-right:auto;flex:none}
.sky-shell .ui-logo>svg{width:32px;height:38px;fill:var(--ui-mint);stroke:var(--ui-forest);stroke-width:1.5}
.sky-shell .ui-logo b{font-size:17px;display:block;line-height:1.2}
.sky-shell .ui-logo small{display:block;font-size:11.5px;color:var(--ui-muted)}
.sky-shell .ui-menu{display:flex;gap:8px}
.sky-shell .ui-menu a{display:inline-flex;align-items:center;justify-content:center;min-height:44px;min-width:44px;padding:0 8px;font-size:14px;font-weight:650;white-space:nowrap;border-bottom:2px solid transparent}
.sky-shell .ui-menu a[aria-current]{border-bottom-color:var(--ui-forest)}
.sky-shell .ui-tools{display:flex;gap:8px;align-items:center}
.sky-shell .ui-lang{display:flex;align-items:center;gap:2px;border:1px solid var(--ui-line);border-radius:12px;padding:3px;min-height:44px;background:var(--ui-surface)}
.sky-shell .ui-lang>svg{margin:0 5px;color:var(--ui-muted)}
.sky-shell .ui-lang a{display:inline-flex;align-items:center;justify-content:center;min-height:38px;min-width:44px;padding:0 9px;border-radius:8px;font-size:13px;font-weight:650}
.sky-shell .ui-lang a[aria-current]{background:var(--ui-forest);color:var(--ui-surface)}
.sky-shell .ui-lang .ui-unavailable{color:var(--ui-muted);border:1px dashed var(--ui-line)}
.sky-shell .ui-short{display:none}
.sky-shell .ui-theme{display:grid;place-items:center;width:44px;height:44px;padding:0;border:1px solid var(--ui-line);border-radius:12px;background:var(--ui-surface)}
.sky-shell .ui-theme svg+svg{display:none}
[data-theme=dark] .sky-shell .ui-theme svg:first-child{display:none}
[data-theme=dark] .sky-shell .ui-theme svg+svg{display:block}
.sky-shell .ui-more,.sky-shell .ui-related{min-height:44px;display:inline-flex;align-items:center;gap:8px;color:var(--ui-forest);font-size:14px;font-weight:650}
.sky-shell .ui-section-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:16px}
.sky-shell h1,.sky-shell h2,.sky-shell h3,.sky-shell p{margin:0}
.sky-shell h2{font-size:clamp(22px,2.4vw,28px);line-height:1.3;letter-spacing:-.03em}
.sky-shell .ui-meta{display:flex;gap:8px;align-items:center;flex-wrap:wrap;font-size:12.5px;color:var(--ui-muted);font-variant-numeric:tabular-nums}
.sky-shell .ui-meta b{color:var(--ui-forest)}
.sky-shell .ui-badge,.sky-shell .ui-chip{display:inline-flex;align-items:center;min-height:22px;font-size:11.5px;font-weight:750;padding:1px 8px;border-radius:6px}
.sky-shell .ui-chip{border:1px solid var(--ui-line);color:var(--ui-ink2)}
.sky-shell .ui-big{background:var(--ui-mint);color:var(--ui-green)}
.sky-shell .ui-close{background:var(--ui-slate-bg);color:var(--ui-slate)}
.sky-shell .ui-flash{background:var(--ui-amber-bg);color:var(--ui-amber)}
.sky-shell .ui-weekend{background:var(--ui-sky-bg);color:var(--ui-sky)}
.sky-shell.ui-strip,.sky-shell.ui-bottom{max-width:880px;margin:18px auto 0;padding:0 24px}
.sky-shell.ui-strip h2{font-size:13px;color:var(--ui-muted)}
.sky-shell .ui-rail{position:relative}
.sky-shell .ui-editions{display:flex;gap:10px;overflow-x:auto;scroll-snap-type:x proximity;overscroll-behavior-x:contain;scrollbar-width:none;padding:5px 2px 12px}
.sky-shell .ui-editions::-webkit-scrollbar{display:none}
.sky-shell .ui-ed{display:flex;flex-direction:column;gap:8px;position:relative;flex:0 0 228px;min-width:0;min-height:148px;padding:16px;border:1px solid var(--ui-line);border-radius:14px;background:var(--ui-surface);scroll-snap-align:center}
.sky-shell .ui-ed[aria-current]{border:2px solid var(--ui-forest);background:var(--ui-mint)}
.sky-shell .ui-ed-title{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;font-size:15px;line-height:1.45;text-align:left}
.sky-shell .ui-current{font-size:11.5px;font-weight:700;color:var(--ui-green)}
.sky-shell .ui-prev,.sky-shell .ui-next{position:absolute;z-index:2;top:50%;transform:translateY(-50%);width:44px;height:44px;padding:0;display:grid;place-items:center;border:1px solid var(--ui-line);border-radius:50%;background:var(--ui-surface)}
.sky-shell .ui-prev{left:-14px}.sky-shell .ui-next{right:-14px}
.sky-shell .ui-prev:disabled,.sky-shell .ui-next:disabled{visibility:hidden}
.sky-shell .ui-rail:before,.sky-shell .ui-rail:after{content:"";position:absolute;z-index:1;top:0;bottom:10px;width:40px;pointer-events:none}
.sky-shell .ui-rail:before{left:0;background:linear-gradient(90deg,var(--ui-plane),transparent)}
.sky-shell .ui-rail:after{right:0;background:linear-gradient(270deg,var(--ui-plane),transparent)}
.sky-shell .ui-rail[data-start=true]:before,.sky-shell .ui-rail[data-end=true]:after{display:none}
.sky-shell.ui-bottom{padding-top:32px;padding-bottom:28px;border-top:1px solid var(--ui-line);background:var(--ui-plane)}
.sky-shell .ui-neighbors{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:20px 0}
.sky-shell .ui-neighbors a{display:flex;flex-direction:column;gap:8px;padding:20px;border:1px solid var(--ui-line);border-radius:14px;background:var(--ui-surface);min-height:140px}
.sky-shell .ui-neighbors a:last-child{text-align:right;align-items:flex-end}
.sky-shell .ui-neighbors span{font-size:13px;color:var(--ui-forest);display:flex;align-items:center;gap:8px}
.sky-shell .ui-related{display:flex;border-bottom:1px solid var(--ui-line);padding:8px 0}
.sky-shell .ui-actions{display:flex;gap:10px;margin-top:20px;flex-wrap:wrap}
.sky-shell .ui-button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:8px 20px;border:1px solid var(--ui-line);border-radius:12px;background:var(--ui-surface);font-size:15px;font-weight:700}
.sky-shell .ui-primary{background:var(--ui-forest);color:var(--ui-surface)}
.sky-shell.ui-footer{margin-top:48px;background:var(--ui-surface);border-top:1px solid var(--ui-line)}
.sky-shell.ui-footer>div{max-width:1120px;margin:auto;padding:28px 24px 40px;display:grid;gap:18px;color:var(--ui-muted);font-size:13px}
.sky-shell.ui-footer nav{display:flex;gap:8px 20px;flex-wrap:wrap}
.sky-shell.ui-footer a{display:inline-flex;align-items:center;gap:8px;min-height:44px;min-width:44px;text-decoration:underline}
.sky-shell .ui-top{position:fixed;right:max(16px,env(safe-area-inset-right));bottom:calc(16px + env(safe-area-inset-bottom));height:48px;width:48px;border:1px solid var(--ui-line);border-radius:14px;display:grid;place-items:center;background:var(--ui-surface);z-index:9;box-shadow:0 6px 20px #0002}
.sky-shell .ui-top[hidden]{display:none}
.sky-shell.ui-main{max-width:1120px;margin:0 auto;padding:0 24px}
.sky-shell .ui-section{padding:48px 0 8px}
.sky-shell .ui-hero{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;padding:48px 0 16px}
.sky-shell .ui-eyebrow{font-size:13.5px;color:var(--ui-forest);font-weight:700;margin-bottom:12px}
.sky-shell .ui-hero h1{font-size:clamp(32px,4vw,52px);line-height:1.2;letter-spacing:-.05em;margin-bottom:18px}
.sky-shell .ui-lede{font-size:16px;color:var(--ui-ink2);margin:14px 0 22px}
.sky-shell .ui-principles{padding:0;list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.sky-shell .ui-principles li{border:1px solid var(--ui-line);border-radius:12px;background:var(--ui-surface);padding:12px}
.sky-shell .ui-principles b{display:block;font-size:14px}.sky-shell .ui-principles span{display:block;font-size:12.5px;color:var(--ui-muted)}
.sky-shell .ui-hero-art{width:100%;height:100%;aspect-ratio:16/10;object-fit:cover;border-radius:22px}
.sky-shell .ui-latest-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:16px}
.sky-shell .ui-feature,.sky-shell .ui-mini,.sky-shell .ui-path,.sky-shell .ui-question,.sky-shell .ui-follow>a{border:1px solid var(--ui-line);border-radius:16px;background:var(--ui-surface);overflow:hidden}
.sky-shell .ui-feature img{width:100%;aspect-ratio:16/9;object-fit:cover}
.sky-shell .ui-feature>div{padding:20px;display:flex;flex-direction:column;gap:12px}
.sky-shell .ui-feature h3{font-size:clamp(24px,3vw,32px);line-height:1.3}
.sky-shell .ui-feature p{color:var(--ui-ink2);font-size:15px}
.sky-shell .ui-side{display:grid;gap:16px;align-content:start}
.sky-shell .ui-mini{display:grid;grid-template-columns:100px minmax(0,1fr);gap:12px;padding:12px}
.sky-shell .ui-mini>img{grid-row:1/4;aspect-ratio:4/3;object-fit:cover;border-radius:8px}
.sky-shell .ui-mini h3{font-size:16px;line-height:1.4}
.sky-shell .ui-mini p{font-size:13px;color:var(--ui-ink2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.sky-shell .ui-watch-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:28px}
.sky-shell .ui-questions{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.sky-shell .ui-question{padding:18px}.sky-shell .ui-question h3{font-size:16px;line-height:1.4;margin-bottom:8px}
.sky-shell .ui-question p{font-size:13px;color:var(--ui-ink2);margin-top:6px}
.sky-shell .ui-date{display:grid;grid-template-columns:90px minmax(0,1fr);gap:12px;padding:14px 0;border-bottom:1px solid var(--ui-line);font-size:14px}
.sky-shell .ui-date time{color:var(--ui-forest);font-weight:700;font-variant-numeric:tabular-nums}
.sky-shell .ui-date span{display:block;font-size:13px;color:var(--ui-ink2)}
.sky-shell .ui-paths{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.sky-shell .ui-path{display:flex;flex-direction:column;gap:10px;padding:22px}
.sky-shell .ui-path h3{font-size:20px;line-height:1.4}.sky-shell .ui-path p{font-size:14px;color:var(--ui-ink2)}
.sky-shell .ui-filters{display:flex;overflow-x:auto;gap:8px;padding:4px 3px 12px;overscroll-behavior-x:contain;scrollbar-width:thin}
.sky-shell .ui-filter{flex:none;display:inline-flex;align-items:center;gap:8px;min-height:44px;border:1px solid var(--ui-line);border-radius:99px;padding:0 14px;background:var(--ui-surface);font-size:14px}
.sky-shell .ui-filter[aria-pressed=true]{background:var(--ui-ink);color:var(--ui-plane)}
.sky-shell .ui-legend{display:flex;gap:6px 8px;align-items:center;flex-wrap:wrap;font-size:12.5px;color:var(--ui-muted);margin-bottom:18px}
.sky-shell .ui-month{font-size:14px;color:var(--ui-muted);padding-bottom:8px;border-bottom:1px solid var(--ui-line);margin:24px 0 4px}
.sky-shell .ui-row{display:grid;grid-template-columns:44px minmax(0,1fr) auto 18px;gap:14px;align-items:center;min-height:84px;border-bottom:1px solid var(--ui-line);padding:14px 0}
.sky-shell .ui-rno{font-weight:800;color:var(--ui-forest);font-variant-numeric:tabular-nums}
.sky-shell .ui-rmain{min-width:0}.sky-shell .ui-rtitle{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;font-weight:750;line-height:1.4}
.sky-shell .ui-rdesc{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:13px;color:var(--ui-muted)}
.sky-shell .ui-follow{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.sky-shell .ui-follow>a{display:flex;flex-direction:column;gap:8px;padding:20px;min-height:120px}
.sky-shell .ui-follow span{font-size:13.5px;color:var(--ui-ink2)}
.sky-shell .ui-about{max-width:760px;padding:40px 0}.sky-shell .ui-about h1{font-size:36px}.sky-shell .ui-about h2{font-size:21px;margin:24px 0 8px}.sky-shell .ui-about p{color:var(--ui-ink2);margin:8px 0}
html{scroll-padding-top:84px}
.sky-shell-on .sitehead,.sky-shell-on .archive-controls,.sky-shell-on nav.archive,.sky-shell-on #theme{display:none!important}
@media(max-width:960px){.sky-shell .ui-menu{order:3;flex-basis:100%;overflow-x:auto}.sky-shell .ui-bar{gap:4px 12px}.sky-shell .ui-hero{grid-template-columns:1fr;gap:24px;padding-top:28px}.sky-shell .ui-hero-art{grid-row:1;aspect-ratio:21/9;max-height:340px}.sky-shell .ui-latest-grid,.sky-shell .ui-watch-grid{grid-template-columns:1fr}.sky-shell .ui-side{grid-template-columns:1fr 1fr}.sky-shell .ui-row{grid-template-columns:40px minmax(0,1fr) 18px}.sky-shell .ui-row>.ui-meta{grid-column:2;grid-row:2}.sky-shell .ui-row>svg{grid-column:3;grid-row:1/3}}
@media(max-width:640px){html{scroll-padding-top:116px}.sky-shell .ui-bar{padding:8px 16px}.sky-shell .ui-logo{gap:6px}.sky-shell .ui-logo>svg{width:26px;height:32px}.sky-shell .ui-logo small,.sky-shell .ui-lang>svg,.sky-shell .ui-full{display:none}.sky-shell .ui-short{display:inline}.sky-shell .ui-logo b{font-size:15px}.sky-shell .ui-tools{gap:8px}.sky-shell .ui-lang a{padding:0 6px}.sky-shell.ui-main,.sky-shell.ui-strip,.sky-shell.ui-bottom{padding-left:16px;padding-right:16px}.sky-shell .ui-ed{flex-basis:72vw;max-width:260px}.sky-shell .ui-prev,.sky-shell .ui-next{display:none}.sky-shell .ui-principles{grid-template-columns:1fr;gap:0}.sky-shell .ui-principles li{border:0;border-bottom:1px solid var(--ui-line);border-radius:0;padding:10px 0;background:none;display:flex;gap:10px;align-items:baseline}.sky-shell .ui-hero-art{aspect-ratio:2.4/1}.sky-shell .ui-actions{flex-direction:column}.sky-shell .ui-actions>a{width:100%}.sky-shell .ui-side,.sky-shell .ui-questions,.sky-shell .ui-paths,.sky-shell .ui-follow,.sky-shell .ui-neighbors{grid-template-columns:1fr}.sky-shell .ui-section{padding-top:36px}.sky-shell .ui-menu{gap:8px}.sky-shell .ui-menu a{font-size:14px;padding:0 6px}.sky-shell .ui-rdesc{white-space:normal;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.sky-shell .ui-row{column-gap:8px}.sky-shell .ui-section-head{gap:8px}.sky-shell .ui-section-head h2{font-size:22px}.sky-shell .ui-mini{grid-template-columns:88px minmax(0,1fr)}}
@media(hover:none){.sky-shell .ui-prev,.sky-shell .ui-next{display:none}}
@media(prefers-reduced-motion:reduce){.sky-shell *{transition:none!important;scroll-behavior:auto!important}}

.sky-shell.ui-page{margin:0;background:var(--ui-plane)}
.sky-shell .ui-existing-paths .path-card{display:block;border:1px solid var(--ui-line);border-radius:16px;background:var(--ui-surface);padding:22px;min-height:160px}.sky-shell .ui-existing-paths .path-card h3{font-size:20px;line-height:1.4}.sky-shell .ui-existing-paths .path-card p{font-size:14px;color:var(--ui-ink2);margin:10px 0}.sky-shell .ui-existing-paths section{display:contents}

html:has(meta[name=sky-page][content=report]){scroll-padding-top:0}
.sky-shell .ui-existing-paths .path-grid{display:contents}.sky-shell .ui-reading-steps{padding-left:24px}.sky-shell .ui-reading-steps li{padding:20px 0;border-bottom:1px solid var(--ui-line)}
@media(max-width:640px){.sky-shell .ui-bar{column-gap:8px}.sky-shell .ui-logo b{font-size:14px}}

@media(min-width:641px) and (hover:hover){.sky-shell .ui-rail{padding-left:52px;padding-right:52px}.sky-shell .ui-prev{left:0}.sky-shell .ui-next{right:0}.sky-shell .ui-rail:before{left:52px}.sky-shell .ui-rail:after{right:52px}}

.sky-shell.ui-report-viewport{font:inherit;color:inherit;word-break:inherit;overflow-wrap:inherit;max-width:100%;overflow-x:auto}

.sky-shell.ui-errata{max-width:1120px;margin:32px auto;padding:24px;border:1px solid var(--ui-line);border-left:4px solid var(--ui-forest);border-radius:12px;background:var(--ui-surface);color:var(--ui-ink)}
.sky-shell.ui-errata h2{font-size:21px;margin:0 0 8px}.sky-shell.ui-errata time,.sky-shell.ui-errata .ui-errata-sources{font-size:13px;color:var(--ui-ink2)}.sky-shell.ui-errata p{font-size:14px;line-height:1.85}.sky-shell.ui-errata a{text-decoration:underline;text-underline-offset:3px}
@media(max-width:680px){.sky-shell.ui-errata{margin:24px 16px;padding:18px}}