:root{--fl-font-sans:"Pretendard Variable",Pretendard,-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans KR",sans-serif;--fl-font-mono:ui-monospace,"SF Mono","JetBrains Mono",Menlo,Monaco,Consolas,"Liberation Mono",monospace;--fl-font-serif:"Source Serif Pro","Noto Serif 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rgba(15,14,12,0.16);color-scheme:light;--fl-text-2xs:11px;--fl-text-xs:12px;--fl-text-sm:13px;--fl-text-base:14px;--fl-text-md:15px;--fl-text-lg:17px;--fl-text-xl:19px;--fl-text-2xl:24px;--fl-text-3xl:30px;--fl-text-4xl:38px;--fl-text-5xl:46px;--fl-leading-tight:1.25;--fl-leading-snug:1.4;--fl-leading-normal:1.6;--fl-leading-relaxed:1.75;--fl-weight-regular:400;--fl-weight-medium:500;--fl-weight-semibold:600;--fl-weight-bold:700;--fl-space-0:0;--fl-space-1:2px;--fl-space-2:4px;--fl-space-3:6px;--fl-space-4:8px;--fl-space-5:12px;--fl-space-6:16px;--fl-space-7:20px;--fl-space-8:24px;--fl-space-9:32px;--fl-space-10:40px;--fl-space-11:48px;--fl-space-12:64px;--fl-space-13:80px;--fl-space-14:96px;--fl-radius-xs:3px;--fl-radius-sm:4px;--fl-radius:6px;--fl-radius-md:8px;--fl-radius-lg:12px;--fl-radius-xl:16px;--fl-radius-2xl:20px;--fl-radius-full:9999px;--fl-ease-out:cubic-bezier(0.16,1,0.3,1);--fl-ease-in:cubic-bezier(0.4,0,1,1);--fl-ease-inout:cubic-bezier(0.65,0,0.35,1);--fl-ease-spring:cubic-bezier(0.17,0.86,0.32,1.28);--fl-duration-fast:120ms;--fl-duration-normal:180ms;--fl-duration-slow:280ms}.dark{--fl-bg:#1a1918;--fl-surface:#232220;--fl-surface-2:#1f1e1c;--fl-surface-3:#2b2a27;--fl-overlay:rgba(0,0,0,0.6);--fl-hover:rgba(255,253,248,0.05);--fl-hover-strong:rgba(255,253,248,0.09);--fl-active:rgba(255,253,248,0.13);--fl-selected:rgba(106,140,255,0.18);--fl-text:#e8e6e1;--fl-text-secondary:#c0bdb5;--fl-text-tertiary:#8e8a82;--fl-text-quaternary:#6f6b62;--fl-text-placeholder:#5a564f;--fl-text-disabled:#5a564f;--fl-text-on-accent:#15203f;--fl-border-subtle:rgba(255,253,248,0.06);--fl-border:rgba(255,253,248,0.10);--fl-border-strong:rgba(255,253,248,0.18);--fl-border-focus:#6a8cff;--fl-accent-50:#1a2547;--fl-accent-100:#1f3061;--fl-accent-200:#2a4a9e;--fl-accent-400:#6a8cff;--fl-accent:#6a8cff;--fl-accent-600:#8aa9ff;--fl-accent-700:#b3c5ff;--fl-success:#5fc18e;--fl-success-bg:#1c3528;--fl-warning:#e3b341;--fl-warning-bg:#372e20;--fl-danger:#e87b75;--fl-danger-bg:#3a201d;--fl-info:#8aa9ff;--fl-info-bg:#1a2547;--fl-tint-gray:#9b9b9b;--fl-tint-brown:#a27763;--fl-tint-orange:#cb7b37;--fl-tint-green:#4f9768;--fl-tint-blue:#447acb;--fl-tint-purple:#865dbb;--fl-tint-pink:#ba4a78;--fl-tint-red:#be524b;--fl-chart-gray:#9e9e97;--fl-chart-brown:#bc8e6e;--fl-chart-orange:#f4a03c;--fl-chart-yellow:#edc04a;--fl-chart-green:#34b98a;--fl-chart-blue:#4d9de8;--fl-chart-purple:#b084e9;--fl-chart-pink:#eb6fb1;--fl-chart-red:#ec5f63;--fl-inverse-surface:#ffffff;--fl-inverse-text:#2a2925;--fl-tint-gray-bg:rgba(168,165,159,0.14);--fl-tint-brown-bg:rgba(217,163,122,0.14);--fl-tint-orange-bg:rgba(232,168,107,0.14);--fl-tint-yellow-bg:rgba(232,197,99,0.14);--fl-tint-green-bg:rgba(127,207,163,0.14);--fl-tint-blue-bg:rgba(138,169,255,0.16);--fl-tint-purple-bg:rgba(179,155,245,0.16);--fl-tint-pink-bg:rgba(232,143,189,0.14);--fl-tint-red-bg:rgba(232,138,133,0.14);--fl-shadow-xs:0 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a{color:inherit;text-decoration:underline;-webkit-text-decoration-color:var(--fl-border-strong);text-decoration-color:var(--fl-border-strong);text-underline-offset:2px;transition:-webkit-text-decoration-color var(--fl-duration-fast);transition:text-decoration-color var(--fl-duration-fast);transition:text-decoration-color var(--fl-duration-fast),-webkit-text-decoration-color var(--fl-duration-fast)}article a:hover{-webkit-text-decoration-color:currentColor;text-decoration-color:currentColor}article div.nextra-border[class*="x:print:hidden"]>a,article div.nextra-border[class*="x:print:hidden"]>a:hover{text-decoration:none}article a.x\:text-primary-600.x\:underline{color:var(--link);-webkit-text-decoration-line:underline;text-decoration-line:underline;text-decoration-thickness:1px;text-underline-offset:3px;-webkit-text-decoration-color:color-mix(in srgb,currentColor 40%,transparent);text-decoration-color:color-mix(in srgb,currentColor 40%,transparent)}article a.x\:text-primary-600.x\:underline:hover{color:var(--link-hover);-webkit-text-decoration-line:underline;text-decoration-line:underline;-webkit-text-decoration-color:currentColor;text-decoration-color:currentColor}article a.x\:text-primary-600>svg{display:none}article :not(pre)>code{background:var(--fl-tint-gray-bg);color:var(--fl-tint-red);padding:.15em .4em;border-radius:var(--fl-radius-xs);font-size:.85em;font-family:var(--fl-font-mono)}pre code.nextra-code{line-height:1.3}.nextra-code>span{min-height:1.25rem;min-height:1lh}article ol,article ul{padding-left:1.5em;margin-bottom:var(--fl-space-5)}article li{margin-bottom:var(--fl-space-2);line-height:var(--fl-leading-normal)}article li::marker{color:var(--fl-text-tertiary)}article strong{font-weight:var(--fl-weight-semibold)}article blockquote{border-left:3px solid;padding:.1em 0 .1em 1em;margin:var(--fl-space-5) 0;color:inherit}.scroll-cue{display:flex;justify-content:center;margin:1.5rem 0 .25rem;color:var(--text-tertiary);font-size:.8125rem}.scroll-cue a{display:inline-flex;align-items:center;gap:.45rem;color:inherit;text-decoration:none;transition:color .15s ease}.scroll-cue a:hover{color:var(--accent-text)}.scroll-cue__arrow{display:inline-grid;place-items:center;width:1.5rem;height:1.5rem;border:1px solid var(--fl-border);border-radius:var(--fl-radius-full);color:var(--accent-text);line-height:1;animation:scrollCueNudge 1.8s ease-in-out infinite}.section-anchor{display:block;scroll-margin-top:5rem}@media (prefers-reduced-motion:reduce){.scroll-cue__arrow{animation:none}}@keyframes scrollCueNudge{0%,to{transform:translateY(0)}45%{transform:translateY(3px)}}article table{width:100%;border-collapse:collapse;margin:var(--fl-space-6) 0;font-size:var(--fl-text-base);line-height:var(--fl-leading-normal)}article td,article th{text-align:left;padding:7px 10px;border:1px solid var(--fl-border);vertical-align:top}article th{font-weight:var(--fl-weight-medium);color:var(--fl-text-secondary);background:var(--fl-surface-2)}:is(.nextra-sidebar,.nextra-mobile-nav) li a{color:var(--fl-text-secondary);border-radius:var(--fl-radius-sm)}:is(.nextra-sidebar,.nextra-mobile-nav) li a:hover{color:var(--fl-text);background-color:var(--fl-hover)}:is(.nextra-sidebar,.nextra-mobile-nav) li a[class*="x:bg-primary-100"]{color:var(--fl-text);font-weight:var(--fl-weight-medium);background-color:var(--fl-hover-strong)}::selection{background:var(--fl-accent-100);color:var(--fl-text)}nav[class*=nextra] a{font-weight:500}aside a{font-size:.875rem;line-height:1.6}:root{--nextra-content-width:85rem}div.nextra-body-typesetting-article:has([data-landing-hero]){padding-left:1rem;padding-right:1rem}div.nextra-body-typesetting-article:has([data-landing-hero])>*{max-width:42rem;margin-left:auto;margin-right:auto}div.nextra-body-typesetting-article:has([data-landing-hero]){background-color:#fdfcfa;background-image:var(--paper-noise);background-size:180px 180px}.dark div.nextra-body-typesetting-article:has([data-landing-hero]){background-color:#0d0d10}.nextra-sidebar-footer{display:none!important}.nextra-sidebar .nextra-scrollbar{padding-top:4.5rem}button[title="Change theme"]:not(.theme-switch-navbar){display:none!important}div:has(>.site-footer)>div:has(button[title="Change theme"]),div:has(>.site-footer)>hr.nextra-border{display:none!important}.theme-switch-navbar{margin-left:.25rem}@media (max-width:767px){.theme-switch-navbar{display:none!important}}@media (min-width:768px){.nextra-search 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h1{white-space:nowrap;font-size:var(--fl-text-3xl)!important;margin-top:0!important}@media (max-width:640px){.book-hero-info h1{font-size:min(var(--fl-text-3xl),calc((100vw - 48px) / 12))!important}}.book-props{margin:var(--fl-space-6) 0 0;padding-top:var(--fl-space-5);border-top:1px solid var(--fl-border)}.book-props>div{display:flex;align-items:center;min-height:34px}.book-props dt{flex:0 0 8.5rem;color:var(--fl-text-tertiary);font-size:var(--fl-text-base)}.book-props dt>span{margin-right:.35rem}.book-props dd{margin:0;color:var(--fl-text);font-size:var(--fl-text-base)}@media (max-width:640px){.book-hero{grid-template-columns:1fr;row-gap:var(--fl-space-6)}.book-hero figure img{width:10rem}.book-hero-info{padding-top:0}.book-hero{margin-top:-7.5rem}.book-hero figure{position:relative;z-index:1}.book-hero figure img{box-shadow:0 0 0 1px rgba(255,255,255,.22),0 0 26px rgba(255,255,255,.4),0 18px 40px rgba(0,0,0,.35)}}.nextra-mobile-nav div:has(>.nextra-search){display:none}.nextra-mobile-nav ul.nextra-scrollbar{padding-top:var(--fl-space-4);gap:.125rem;padding-inline:calc(var(--page-gutter) - .5rem)}.nextra-mobile-nav ul.nextra-scrollbar>li>a,.nextra-mobile-nav ul.nextra-scrollbar>li>button{min-height:48px;align-items:center;padding:.625rem .5rem;font-size:1.125rem;font-weight:var(--fl-weight-semibold);color:var(--fl-text)}.nextra-mobile-nav ul.nextra-scrollbar ul a{min-height:44px;align-items:center;padding:.5rem;font-size:1rem;color:var(--fl-text-secondary)}.nextra-mobile-nav ul.nextra-scrollbar>li+li{border-top:1px solid var(--fl-border);padding-top:.125rem}.nextra-mobile-nav ul.nextra-scrollbar>li:has(>div){padding-bottom:.5rem}@media (max-width:767px){.nextra-banner{position:relative!important}.nextra-navbar{top:0!important}.nextra-banner:not([class$=hidden])~.nextra-mobile-nav{padding-top:calc(var(--banner-visible, var(--nextra-banner-height)) + var(--nextra-navbar-height))!important}article h1:not([class*=Hero_title]):not(.book-hero-info h1){font-size:1.875rem!important;line-height:1.3}.site-footer-links a{padding:.45rem 0}}:root{--page-gutter:24px}@media (max-width:767px){article{padding-left:var(--page-gutter)!important;padding-right:var(--page-gutter)!important}}.book-spread{position:relative;margin:var(--fl-space-8) 0 var(--fl-space-11);border-radius:10px;background:linear-gradient(180deg,#13244a,#0b1a3a);box-shadow:0 2px 0 #08132b,0 22px 48px rgba(16,24,48,.28),0 6px 14px rgba(16,24,48,.18);color:#37352f}.book-spread-page{position:relative;background-color:#fbf8f1;font-family:var(--font-book)}.book-spread-head{height:6.25rem}.book-spread-title{margin:0!important;padding:0!important;border:0!important;font-family:var(--font-book)!important;font-size:1.5rem!important;font-weight:700!important;letter-spacing:.08em!important;line-height:1.3!important;color:#262420!important}.book-spread-title a{display:none}.book-spread-note{margin:var(--fl-space-3) 0 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