:root{--ink:#15253f;--ink-soft:#3a4a63;--muted:#5e6b7d;--paper:#ffffff;--surface:#f2f5f8;--rule:#d9e0e8;--stamp:#b8322a;--link:#1f4f8f;--focus:#1f6feb;--serif:"Noto Serif KR","Nanum Myeongjo",serif;--sans:"IBM Plex Sans KR","Apple SD Gothic Neo","Malgun Gothic",system-ui,sans-serif;--wrap:1180px}*,:after,:before{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-padding-top:88px}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.7;word-break:keep-all;overflow-wrap:break-word}a{color:inherit}img{max-width:100%;height:auto}:focus-visible{outline:2px solid var(--focus);outline-offset:2px;border-radius:2px}@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:#fff;padding:8px 12px;z-index:50}.skip:focus{left:8px}.site-header{position:-webkit-sticky;position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);border-bottom:1px solid var(--rule);-webkit-backdrop-filter:saturate(1.4) blur(6px);backdrop-filter:saturate(1.4) blur(6px)}.header-inner{display:flex;align-items:center;gap:32px;height:64px}.brand{display:flex;align-items:baseline;gap:10px;text-decoration:none;flex-shrink:0}.brand-mark{font-weight:600;letter-spacing:.14em;font-size:15px}.brand-name{font-family:var(--serif);font-weight:700;font-size:17px}.site-header nav{min-width:0}.nav{display:flex;gap:20px;list-style:none;margin:0;padding:0;overflow-x:auto;scrollbar-width:none}.nav::-webkit-scrollbar{display:none}.nav a{text-decoration:none;font-size:14.5px;color:var(--ink-soft);white-space:nowrap;padding:6px 0}.nav a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:6px}.sample-bar{margin:0;padding:8px 24px;background:var(--surface);color:var(--muted);font-size:13.5px;text-align:center}.hero{border-bottom:1px solid var(--rule)}.hero-inner{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);grid-gap:64px;gap:64px;padding-top:72px;padding-bottom:72px;align-items:start}.hero h1{font-family:var(--serif);font-weight:700;font-size:clamp(30px,4.2vw,46px);line-height:1.32;letter-spacing:-.02em;margin:0 0 20px;max-width:15em}.lede{color:var(--ink-soft);font-size:17px;max-width:34em;margin:0 0 36px}.search{position:relative;max-width:520px}.search-label{display:block;font-size:14px;font-weight:600;margin-bottom:8px}.search input{width:100%;height:54px;padding:0 18px;font:inherit;font-size:16px;color:var(--ink);border:1.5px solid var(--ink);border-radius:6px;background:#fff}.search input::placeholder{color:#8a95a5}.search-results{list-style:none;margin:8px 0 0;padding:6px;border:1px solid var(--rule);border-radius:6px;background:#fff;box-shadow:0 12px 28px rgba(21,37,63,.12);position:absolute;left:0;right:0;z-index:10}.search-results a{display:flex;gap:12px;padding:10px 12px;border-radius:4px;text-decoration:none;align-items:flex-start}.search-results a:focus-visible,.search-results a:hover{background:var(--surface)}.search-results .r-title{display:block;font-weight:500}.search-results .r-cat{display:block;font-size:13px;color:var(--muted)}.search-results .empty{padding:12px;color:var(--muted);font-size:14.5px}.ledger{background:var(--surface);border-radius:8px;padding:28px 28px 22px}.ledger-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;border-bottom:2px solid var(--ink);padding-bottom:12px}.ledger-head h2{font-family:var(--serif);font-size:20px;margin:0}.ledger-head p{margin:0;font-size:13px;color:var(--muted)}.ledger-list{list-style:none;margin:0;padding:0}.ledger-list li{display:grid;grid-template-columns:56px 1fr auto;grid-gap:16px;gap:16px;align-items:center;padding:14px 0;border-bottom:1px solid var(--rule)}.ledger-date{display:flex;flex-direction:column;align-items:center;line-height:1.1}.ledger-m{font-size:12px;color:var(--muted)}.ledger-d{font-family:var(--serif);font-size:28px;font-weight:700;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.ledger-title{display:block;font-weight:600;line-height:1.45}.ledger-who{display:block;font-size:13.5px;color:var(--muted)}.dday{font-size:13px;font-weight:600;color:var(--ink-soft);font-feature-settings:"tnum";font-variant-numeric:tabular-nums;white-space:nowrap}.dday.soon{color:var(--stamp);border:1.5px solid var(--stamp);border-radius:50%;width:52px;height:52px;display:grid;place-items:center;transform:rotate(-8deg)}.ledger-foot{margin:14px 0 0;font-size:13.5px;color:var(--muted)}.ledger-foot a{color:var(--link);font-weight:500}.sections{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:56px 64px;gap:56px 64px;padding-top:72px;padding-bottom:96px}.section-head{display:flex;gap:16px;align-items:flex-start;padding-bottom:14px;border-bottom:1px solid var(--rule);margin-bottom:10px}.section-no{font-family:var(--serif);font-weight:700;font-size:15px;color:var(--muted);padding-top:5px;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.section-head h2{font-family:var(--serif);font-size:22px;margin:0;line-height:1.4}.section-head h2 a{text-decoration:none}.section-head h2 a:hover{text-decoration:underline;text-underline-offset:5px}.section-head p{margin:4px 0 0;color:var(--muted);font-size:14.5px}.post-list{list-style:none;margin:0;padding:0}.post-list a{display:flex;gap:12px;align-items:flex-start;padding:9px 6px;text-decoration:none;border-radius:4px}.post-list .icon{width:22px;flex-shrink:0;text-align:center}.post-list .pl-title{text-decoration:underline;-webkit-text-decoration-color:var(--rule);text-decoration-color:var(--rule);text-underline-offset:5px;text-decoration-thickness:1px}.post-list a:hover .pl-title{-webkit-text-decoration-color:var(--ink);text-decoration-color:var(--ink)}.post-list a:hover{background:var(--surface)}.post-list .pl-summary{display:block;color:var(--muted);font-size:14.5px;margin-top:2px}.post-list:not(.compact) li{border-bottom:1px solid var(--rule)}.post-list:not(.compact) a{padding-top:16px;padding-bottom:16px}.post-list:not(.compact) .pl-title{font-weight:600;font-size:17px}.post-list a[aria-current=page]{background:var(--surface);font-weight:600}.post-list a[aria-current=page] .pl-title{text-decoration:none}.empty-state{color:var(--muted);grid-column:1/-1}.section-page{max-width:820px;padding-top:40px;padding-bottom:96px}.section-page-head{margin:24px 0;border-bottom:2px solid var(--ink);padding-bottom:20px}.section-page-head h1{font-family:var(--serif);font-size:clamp(28px,4vw,38px);margin:6px 0 8px;line-height:1.3}.section-page-head p{margin:0;color:var(--ink-soft)}.crumbs{display:flex;gap:8px;font-size:14px}.crumbs,.crumbs a{color:var(--muted)}.article-layout{display:grid;grid-template-columns:240px minmax(0,720px) 200px;grid-gap:56px;gap:56px;padding-top:40px;padding-bottom:96px;justify-content:center}.side-nav,.toc{position:-webkit-sticky;position:sticky;top:88px;align-self:start;max-height:calc(100vh - 110px);overflow-y:auto;font-size:14.5px}.side-title{font-weight:600;font-size:13.5px;color:var(--muted);margin:0 0 8px}.side-title a{text-decoration:none}.side-nav .post-list a{padding-top:7px;padding-bottom:7px}.side-nav .pl-title{text-decoration:none}.toc ul{list-style:none;margin:0;padding:0 0 0 12px;border-left:1px solid var(--rule)}.toc li{margin:6px 0}.toc li.sub{padding-left:12px;font-size:13.5px}.toc a{color:var(--ink-soft);text-decoration:none}.toc a:hover{color:var(--ink);text-decoration:underline}.article-head{margin:20px 0 36px;padding-bottom:24px;border-bottom:2px solid var(--ink)}.article-icon{font-size:38px;line-height:1;display:block;margin-bottom:14px}.article-head h1{font-family:var(--serif);font-size:clamp(28px,3.6vw,38px);line-height:1.35;letter-spacing:-.015em;margin:0 0 12px}.article-meta{margin:0;color:var(--muted);font-size:14px;display:flex;align-items:center;gap:10px}.article-meta .sep{width:1px;height:12px;background:var(--rule)}.prose{font-size:16.5px;line-height:1.8}.prose>:first-child{margin-top:0}.prose p{margin:0 0 14px}.prose h2{font-family:var(--serif);font-size:23px;line-height:1.45;margin:44px 0 14px}.prose h3{font-size:18.5px;line-height:1.5;margin:30px 0 10px;font-weight:600}.prose ol,.prose ul{margin:0 0 16px;padding-left:1.4em}.prose li,.prose li>ol,.prose li>ul{margin:4px 0}.prose a{color:var(--link);text-underline-offset:3px}.prose a.mention{font-weight:500}.prose strong{font-weight:600}.prose code{font-size:.9em;padding:1px 5px;border-radius:3px}.prose code,.prose pre{background:var(--surface)}.prose pre{padding:16px;border-radius:6px;overflow-x:auto;font-size:14px}.prose hr{border:0;border-top:1px solid var(--rule);margin:36px 0}.prose blockquote{margin:20px 0;padding:2px 0 2px 18px;border-left:3px solid var(--ink);color:var(--ink-soft)}.prose figure{margin:24px 0}.prose figure img{border-radius:4px;border:1px solid var(--rule)}.prose figcaption{font-size:14px;color:var(--muted);margin-top:6px}.prose .spacer{height:10px}.prose .indent{padding-left:1.5em}.callout{display:flex;gap:12px;background:var(--surface);border-radius:6px;padding:16px 18px;margin:20px 0}.callout-icon{font-size:20px;line-height:1.5}.callout-body>:last-child{margin-bottom:0}.toggle{margin:10px 0;border:1px solid var(--rule);border-radius:6px}.toggle>summary{cursor:pointer;padding:12px 16px;font-weight:500;list-style:none;display:flex;gap:10px}.toggle>summary::-webkit-details-marker{display:none}.toggle>summary:before{content:"";width:7px;height:7px;border-right:1.5px solid;border-bottom:1.5px solid;transform:rotate(-45deg);margin-top:.65em;flex-shrink:0;transition:transform .15s}.toggle[open]>summary:before{transform:rotate(45deg)}.toggle>summary h2,.toggle>summary h3{margin:0}.toggle-body{padding:0 16px 6px 33px}.heading-toggle{border:0;border-bottom:1px solid var(--rule);border-radius:0}.heading-toggle>summary{padding-left:0}.table-wrap{overflow-x:auto;margin:20px 0;border:1px solid var(--rule);border-radius:6px}.prose table{border-collapse:collapse;width:100%;font-size:15px;line-height:1.6}.prose td,.prose th{border-bottom:1px solid var(--rule);padding:10px 14px;text-align:left;vertical-align:top}.prose td+td,.prose td+th,.prose th+td,.prose th+th{border-left:1px solid var(--rule)}.prose thead th{background:var(--surface);font-weight:600}.prose tbody tr:last-child>*{border-bottom:0}.columns{display:grid;grid-auto-columns:minmax(0,1fr);grid-auto-flow:column;grid-gap:28px;gap:28px}.todo{list-style:none;padding-left:0!important}.todo li{display:flex;gap:10px}.todo .box{width:16px;height:16px;border:1.5px solid var(--ink-soft);border-radius:3px;margin-top:.4em;flex-shrink:0}.todo .done .box{background:var(--ink)}.bookmark{word-break:break-all}.next-link{display:block;margin-top:64px;padding:20px 24px;border:1px solid var(--rule);border-radius:6px;text-decoration:none}.next-link:hover{border-color:var(--ink)}.next-label{display:block;font-size:13px;color:var(--muted)}.next-title{display:block;font-weight:600;font-size:17px;margin-top:2px}.fg-gray{color:#6b7280}.fg-brown{color:#8a5a3c}.fg-orange{color:#c2570c}.fg-yellow{color:#a16207}.fg-green{color:#2f7a4a}.fg-blue{color:#1f5fa8}.fg-purple{color:#6b4ba1}.fg-pink{color:#b03a7a}.fg-red{color:#b8322a}.bg-gray{background:#f1f1ef}.bg-brown{background:#f4eeee}.bg-orange{background:#fbecdd}.bg-yellow{background:#fbf3db}.bg-green{background:#edf3ec}.bg-blue{background:#e7f3f8}.bg-purple{background:#f6f3f9}.bg-pink{background:#faf1f5}.bg-red{background:#fdebec}span[class^=bg-]{padding:0 3px;border-radius:2px}.callout.bg-gray,.site-footer{background:var(--surface)}.site-footer{border-top:1px solid var(--rule)}.footer-inner{display:flex;justify-content:space-between;gap:32px;padding-top:40px;padding-bottom:48px;font-size:14px;color:var(--muted)}.footer-firm{font-family:var(--serif);font-weight:700;color:var(--ink);font-size:16px;margin:0 0 8px}.footer-note{margin:0;max-width:42em}.footer-copy{margin:0;white-space:nowrap}.not-found{padding-top:96px;padding-bottom:120px;max-width:640px}.not-found h1{font-family:var(--serif);font-size:30px}.button{display:inline-block;margin-top:12px;padding:12px 20px;background:var(--ink);color:#fff;border-radius:6px;text-decoration:none;font-weight:500}@media (max-width:1100px){.article-layout{grid-template-columns:220px minmax(0,1fr)}.toc{display:none}}@media (max-width:860px){.hero-inner{gap:40px;padding-top:44px;padding-bottom:48px}.hero-inner,.sections{grid-template-columns:1fr}.sections{gap:44px;padding-top:48px}.article-layout{grid-template-columns:1fr;gap:0;padding-top:24px}.side-nav{position:static;order:2;max-height:none;margin-top:48px;padding-top:24px;border-top:1px solid var(--rule)}.header-inner{gap:20px}.footer-inner{flex-direction:column}}@media (max-width:560px){.wrap{padding:0 16px}.brand-mark{display:none}.ledger{padding:20px 16px 16px}.ledger-list li{grid-template-columns:44px 1fr auto;gap:12px}.ledger-d{font-size:24px}.dday.soon{width:46px;height:46px;font-size:12px}.columns{grid-auto-flow:row}.prose{font-size:16px}}