.header[data-astro-cid-3ef6ksr2]{position:sticky;top:0;z-index:100;background-color:var(--color-bg);border-bottom:1px solid var(--color-border);height:var(--header-height);transition:background-color var(--transition-normal),border-color var(--transition-normal)}.header__nav[data-astro-cid-3ef6ksr2]{display:flex;align-items:center;justify-content:space-between;height:100%}.header__logo[data-astro-cid-3ef6ksr2]{font-size:var(--font-size-lg);font-weight:700;color:var(--color-text)}.header__logo[data-astro-cid-3ef6ksr2]:hover{color:var(--color-accent)}.header__menu[data-astro-cid-3ef6ksr2]{display:flex;align-items:center;gap:var(--space-lg)}.header__links[data-astro-cid-3ef6ksr2]{display:flex;list-style:none;gap:var(--space-md)}.header__link[data-astro-cid-3ef6ksr2]{color:var(--color-text-secondary);font-size:var(--font-size-sm);font-weight:500;padding:var(--space-xs) var(--space-sm);border-radius:6px;transition:color var(--transition-fast),background-color var(--transition-fast)}.header__link[data-astro-cid-3ef6ksr2]:hover,.header__link[data-astro-cid-3ef6ksr2].active{color:var(--color-accent)}.theme-toggle[data-astro-cid-3ef6ksr2]{display:flex;align-items:center;justify-content:center;width:40px;height:40px;padding:0;background:transparent;border:1px solid var(--color-border);border-radius:8px;cursor:pointer;color:var(--color-text);transition:background-color var(--transition-fast),border-color var(--transition-fast)}.theme-toggle[data-astro-cid-3ef6ksr2]:hover{background-color:var(--color-bg-secondary)}.theme-toggle__icon[data-astro-cid-3ef6ksr2]{display:none}[data-theme=light] .theme-toggle__icon--moon[data-astro-cid-3ef6ksr2],[data-theme=dark] .theme-toggle__icon--sun[data-astro-cid-3ef6ksr2]{display:block}.footer[data-astro-cid-sz7xmlte]{border-top:1px solid var(--color-border);padding:var(--space-xl) 0;margin-top:auto}.footer__text[data-astro-cid-sz7xmlte]{text-align:center;color:var(--color-text-secondary);font-size:var(--font-size-sm);margin:0}@font-face{font-family:Pretendard;src:url(/fonts/pretendard/woff2-subset/Pretendard-Regular.subset.woff2) format("woff2");font-weight:400;font-style:normal;font-display:swap}@font-face{font-family:Pretendard;src:url(/fonts/pretendard/woff2-subset/Pretendard-Medium.subset.woff2) format("woff2");font-weight:500;font-style:normal;font-display:swap}@font-face{font-family:Pretendard;src:url(/fonts/pretendard/woff2-subset/Pretendard-SemiBold.subset.woff2) format("woff2");font-weight:600;font-style:normal;font-display:swap}@font-face{font-family:Pretendard;src:url(/fonts/pretendard/woff2-subset/Pretendard-Bold.subset.woff2) format("woff2");font-weight:700;font-style:normal;font-display:swap}:root{--color-bg: #ffffff;--color-bg-secondary: #f8f9fa;--color-text: #1a1a2e;--color-text-secondary: #6c757d;--color-border: #e9ecef;--color-accent: #2563eb;--color-accent-hover: #1d4ed8;--color-tag-bg: #e7f1ff;--color-tag-text: #1e40af;--space-xs: .25rem;--space-sm: .5rem;--space-md: 1rem;--space-lg: 1.5rem;--space-xl: 2rem;--space-2xl: 3rem;--space-3xl: 4rem;--font-family: "Pretendard", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, Roboto, "Helvetica Neue", Arial, sans-serif;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 2rem;--max-width: 720px;--header-height: 64px;--transition-fast: .15s ease;--transition-normal: .25s ease}[data-theme=dark]{--color-bg: #0f0f1a;--color-bg-secondary: #1a1a2e;--color-text: #f0f0f5;--color-text-secondary: #a0a0b0;--color-border: #2a2a3e;--color-accent: #60a5fa;--color-accent-hover: #93c5fd;--color-tag-bg: #1e3a5f;--color-tag-text: #93c5fd}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-family);font-size:var(--font-size-base);line-height:1.7;color:var(--color-text);background-color:var(--color-bg);transition:background-color var(--transition-normal),color var(--transition-normal);min-height:100vh}a{color:var(--color-accent);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--color-accent-hover)}img{max-width:100%;height:auto;display:block}.container{max-width:var(--max-width);margin:0 auto;padding:0 var(--space-lg)}main{padding:4rem var(--space-lg) 5rem;min-height:calc(100vh - var(--header-height) - 120px)}main.container{padding-top:3rem;padding-bottom:3rem}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.3;color:var(--color-text)}h1{font-size:var(--font-size-3xl)}h2{font-size:var(--font-size-2xl)}h3{font-size:var(--font-size-xl)}p{margin-bottom:var(--space-md)}.text-secondary{color:var(--color-text-secondary)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}