.nav[data-astro-cid-dmqpwcec]{position:fixed;top:0;left:0;right:0;z-index:40;background:var(--color-bg);border-bottom:1px solid var(--color-rule);transform:translateZ(0);-webkit-transform:translateZ(0);will-change:auto;backface-visibility:hidden;-webkit-backface-visibility:hidden}.nav-inner[data-astro-cid-dmqpwcec]{display:grid;grid-template-columns:auto 1fr auto;align-items:stretch;gap:40px;height:64px;max-width:var(--content-max);margin:0 auto;padding:0 var(--gutter)}.nav-logo[data-astro-cid-dmqpwcec]{display:flex;align-items:center}.nav-logo-svg[data-astro-cid-dmqpwcec]{height:25px;width:auto;fill:var(--color-text)}.tab-group[data-astro-cid-dmqpwcec]{display:flex;width:100%;justify-content:center;align-items:center;gap:2px;min-width:0}.folder-tab[data-astro-cid-dmqpwcec]{display:inline-flex;align-items:center;padding:0 20px;height:44px;font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;text-decoration:none;color:var(--color-text-subtle);background:transparent;border:none;outline:none;box-shadow:inset 0 -2px 0 0 transparent;transition:color var(--dur-fast) var(--ease-out-precise);-webkit-tap-highlight-color:transparent;-webkit-user-select:none;user-select:none}.folder-tab[data-astro-cid-dmqpwcec]:hover{color:var(--color-text)}.folder-tab[data-astro-cid-dmqpwcec]:focus,.folder-tab[data-astro-cid-dmqpwcec]:focus-visible{outline:none}.folder-tab[data-astro-cid-dmqpwcec]:active{background:transparent;outline:none}.folder-tab[data-astro-cid-dmqpwcec].is-active{color:var(--color-text);font-weight:700;text-decoration:underline;text-decoration-color:var(--color-accent);text-decoration-thickness:2px;text-underline-offset:8px}.nav-controls[data-astro-cid-dmqpwcec]{display:inline-flex;align-items:center;gap:12px}.nav-divider[data-astro-cid-dmqpwcec]{display:block;width:1px;height:12px;background:var(--color-rule)}.lang-toggle[data-astro-cid-dmqpwcec]{display:inline-flex;align-items:baseline;gap:6px;font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase}.lang-opt[data-astro-cid-dmqpwcec]{color:var(--color-text-subtle);padding:4px 2px;transition:color var(--dur-fast) var(--ease-out-precise);cursor:pointer}.lang-opt[data-astro-cid-dmqpwcec]:hover{color:var(--color-text)}[data-lang=en] .lang-opt[data-astro-cid-dmqpwcec][data-lang-opt=en],[data-lang=kr] .lang-opt[data-astro-cid-dmqpwcec][data-lang-opt=kr]{color:var(--color-text);font-weight:700}.lang-sep[data-astro-cid-dmqpwcec]{color:var(--color-text-subtle)}@media(max-width:720px){.lang-sep[data-astro-cid-dmqpwcec],.lang-opt[data-astro-cid-dmqpwcec][aria-pressed=false]{display:none}.lang-toggle[data-astro-cid-dmqpwcec]{font-size:10px}.lang-opt[data-astro-cid-dmqpwcec]{padding:4px 0}.nav-divider[data-astro-cid-dmqpwcec]{display:none}}@media(max-width:720px){.nav-inner[data-astro-cid-dmqpwcec]{grid-template-columns:auto 1fr 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.95fr;gap:clamp(24px,4vw,48px);align-items:start;padding-top:clamp(44px,7vh,72px);border-top:1px solid var(--color-rule)}.foot-brand[data-astro-cid-sz7xmlte]{font-family:var(--font-display);font-weight:var(--fw-semibold);font-size:clamp(40px,7vw,72px);letter-spacing:-.045em;line-height:.85;color:var(--color-text)}.foot-reg[data-astro-cid-sz7xmlte]{color:var(--color-text)}.foot-label[data-astro-cid-sz7xmlte]{display:block;font-family:var(--font-mono);font-size:var(--fs-caption);letter-spacing:var(--ls-caption);text-transform:uppercase;color:var(--color-accent);margin-bottom:14px}.foot-email[data-astro-cid-sz7xmlte]{font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;color:var(--color-text);text-decoration:none;transition:color var(--dur-fast) var(--ease)}.foot-email[data-astro-cid-sz7xmlte]:hover{color:var(--color-accent)}.foot-social[data-astro-cid-sz7xmlte]{display:flex;align-items:center;gap:18px}.foot-ic[data-astro-cid-sz7xmlte]{display:inline-flex;color:var(--color-text);transition:color var(--dur-fast) var(--ease)}.foot-ic[data-astro-cid-sz7xmlte]:hover{color:var(--color-accent)}.foot-ic[data-astro-cid-sz7xmlte] svg[data-astro-cid-sz7xmlte]{width:20px;height:20px;display:block}.foot-bottom[data-astro-cid-sz7xmlte]{margin-top:clamp(32px,5vh,56px);padding-top:18px;border-top:1px solid var(--color-rule);font-family:var(--font-mono);font-size:var(--fs-caption);letter-spacing:var(--ls-caption);text-transform:uppercase;color:var(--color-text-subtle)}@media(max-width:720px){.foot-grid[data-astro-cid-sz7xmlte]{grid-template-columns:1fr;gap:28px}.foot-brand[data-astro-cid-sz7xmlte]{font-size:clamp(48px,16vw,72px)}}