.glass-header{position:fixed;top:var(--header-top);left:50%;transform:translate(-50%);width:var(--header-width);z-index:var(--z-header);height:var(--header-height);padding:8px 12px;border-radius:var(--header-radius);background:transparent;border:1px solid transparent;backdrop-filter:none;-webkit-backdrop-filter:none;box-shadow:none;transition:background-color .5s ease,backdrop-filter .5s ease,-webkit-backdrop-filter .5s ease,box-shadow .5s ease,border-color .5s ease}.glass-header.visible{background:var(--glass-bg-visible);border-color:var(--glass-border);backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur);box-shadow:var(--glass-shadow)}.glass-header.on-hero{background:transparent;border-color:transparent;border-bottom-color:transparent;backdrop-filter:none;-webkit-backdrop-filter:none;box-shadow:none}.hdr-inner{position:relative;display:flex;align-items:center;justify-content:space-between;width:100%;height:100%;gap:var(--gap-lg)}.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;transition:opacity .22s ease}.brand:hover{opacity:.8}.brand-mark{width:26px;height:26px;display:block}.brand-wordmark{font-family:var(--font-display);font-variant-caps:small-caps;font-size:1rem;font-weight:600;letter-spacing:.1em;color:var(--page-ink)}.main-nav{position:absolute;left:50%;transform:translate(-50%);display:flex;align-items:center;gap:28px;white-space:nowrap}.main-nav a{font-family:var(--font-display);font-weight:500;font-size:.8rem;color:var(--page-ink-soft);text-decoration:none;padding:6px 2px;transition:color .15s ease}.main-nav a:hover{color:var(--page-ink)}.main-nav a.active{color:var(--page-ink);text-decoration:underline;text-decoration-color:var(--thread-page);text-decoration-thickness:1px;text-underline-offset:5px}.hdr-right{display:flex;align-items:center;gap:var(--gap-sm)}.lang-switch{justify-self:end;display:inline-flex;align-items:center;gap:6px}.lang-pill{display:inline-block;text-align:center;padding:4px 2px;font-family:var(--font-mono);text-transform:uppercase;font-size:.72rem;color:var(--page-ink-faint);text-decoration:none;background:none;border-radius:0;transition:color .15s ease}.lang-pill:hover{color:var(--page-ink)}.lang-pill.is-active{color:var(--page-ink);text-decoration:underline;text-decoration-color:var(--thread-page);text-decoration-thickness:1px;text-underline-offset:4px}.dark-toggle{width:var(--btn-size);height:var(--btn-size);display:grid;place-items:center;border-radius:0;background:transparent;border:0;color:var(--page-ink);cursor:pointer;opacity:.7;transition:opacity .15s ease;font-size:.9rem;line-height:1;padding:0;-webkit-tap-highlight-color:transparent}.dark-toggle:hover{opacity:1}.toggle-emoji{display:inline-block;transition:transform .3s var(--ease-bounce);font-size:inherit;line-height:1;user-select:none}.dark-toggle:active .toggle-emoji{transform:scale(.9)}.mobile-toggle{display:none;appearance:none;border:0;background:transparent;cursor:pointer;width:40px;height:var(--btn-size);color:var(--page-ink);flex-direction:column;align-items:center;justify-content:center;gap:5px;padding:8px}.mobile-toggle .bar{display:block;width:20px;height:2px;border-radius:2px;background:currentColor;transition:transform .25s ease,opacity .2s ease}.mobile-toggle.is-open{background:var(--page-bg)}.mobile-toggle.is-open .bar:nth-child(1){transform:translateY(7px) rotate(45deg)}.mobile-toggle.is-open .bar:nth-child(2){opacity:0;transform:scaleX(0)}.mobile-toggle.is-open .bar:nth-child(3){transform:translateY(-7px) rotate(-45deg)}@media(max-width:900px){.mobile-toggle{display:flex}.main-nav{display:none}}.glass-header.on-hero .brand-wordmark{color:#fff;text-shadow:0 1px 8px rgba(0,0,0,.55)}.glass-header.on-hero .main-nav a{color:#ffffffd9;text-shadow:0 1px 8px rgba(0,0,0,.55)}.glass-header.on-hero .main-nav a:hover{color:#fff}.glass-header.on-hero .main-nav a.active{color:#fff;text-decoration-color:var(--thread-chapter)}.glass-header.on-hero .lang-pill{color:#ffffffd9;text-shadow:0 1px 8px rgba(0,0,0,.55)}.glass-header.on-hero .lang-pill:hover{color:#fff}.glass-header.on-hero .lang-pill.is-active{color:#fff;text-decoration-color:var(--thread-chapter)}.glass-header.on-hero .dark-toggle{color:#fff;text-shadow:0 1px 8px rgba(0,0,0,.55)}.glass-header.on-hero .mobile-toggle{color:#fff}.glass-header.on-hero .mobile-toggle .bar{filter:drop-shadow(0 1px 8px rgba(0,0,0,.55))}.glass-header.on-hero .mobile-toggle.is-open{color:var(--page-ink)}.glass-header.on-hero .mobile-toggle.is-open .bar{filter:none}.mobile-drawer{position:fixed;inset:0;z-index:var(--z-drawer);display:flex;flex-direction:column;background:var(--page-bg);opacity:0;pointer-events:none;transition:opacity .22s ease}.mobile-drawer[aria-hidden=false]{opacity:1;pointer-events:auto}.drawer-inner{align-self:stretch;margin:calc(var(--header-top) + var(--header-height-mobile)) 16px 16px;padding:16px;transform:translateY(-8px);transition:transform .25s var(--ease-smooth)}.mobile-drawer[aria-hidden=false] .drawer-inner{transform:translateY(0)}.drawer-link{display:block;padding:14px 10px;font-family:var(--font-voice);font-size:1.5rem;line-height:1.2;color:var(--page-ink);text-decoration:none}.drawer-link+.drawer-link{margin-top:6px}.drawer-link:hover,.drawer-link:active{text-decoration:underline;text-decoration-color:var(--thread-page);text-decoration-thickness:1px;text-underline-offset:4px}.drawer-lang{margin-top:16px;display:flex;gap:12px}.drawer-lang-pill{display:inline-block;padding:4px 2px;font-family:var(--font-mono);font-size:.75rem;line-height:1;text-transform:uppercase;color:var(--page-ink-faint);text-decoration:none;background:none;border:0}.drawer-lang-pill.is-active{color:var(--page-ink);text-decoration:underline;text-decoration-color:var(--thread-page);text-decoration-thickness:1px;text-underline-offset:4px}.drawer-social{margin-top:16px;display:flex;gap:14px}.drawer-social-btn{width:auto;height:auto;display:grid;place-items:center;background:none;border:0;color:var(--page-ink-faint);text-decoration:none;transition:color .2s ease}.drawer-social-btn:hover{color:var(--page-ink)}.drawer-social-btn svg{width:20px;height:20px;fill:currentColor}.drawer-dark-toggle{display:flex;align-items:center;gap:12px;width:100%;padding:14px 10px;margin-top:16px;background:none;border:0;border-top:1px solid var(--page-hairline);border-radius:0;color:var(--page-ink);font-family:var(--font-display);font-weight:600;font-size:14px;cursor:pointer}.drawer-dark-toggle .toggle-emoji{font-size:20px}@media(max-width:900px){.glass-header{width:calc(100% - 16px - env(safe-area-inset-left,0px) - env(safe-area-inset-right,0px));height:var(--header-height-mobile);top:calc(var(--header-top) + env(safe-area-inset-top,0px));padding:8px 14px}.glass-header.visible:not(.on-hero){background:var(--page-veil)}.hdr-inner{gap:var(--gap-sm)}.drawer-inner{margin-top:calc(var(--header-top) + var(--header-height-mobile) + env(safe-area-inset-top,0px))}}@media(min-width:768px)and (max-width:1024px){.glass-header{padding-inline:12px}.hdr-inner{gap:8px}.main-nav{position:relative;left:auto;transform:none;gap:16px}.main-nav a{font-size:10px}.brand-wordmark{font-size:.9rem}.dark-toggle{width:32px;height:32px}.toggle-emoji{font-size:16px}.lang-switch{gap:4px}.lang-pill{padding:4px 2px;font-size:10px}}@media(max-width:480px){.brand-wordmark{display:none}.hdr-right{gap:6px}.lang-pill{padding:4px 2px;font-size:10px}}.admin-bar .glass-header{top:48px}.admin-bar .drawer-inner{margin-top:120px}.footer[data-astro-cid-dwl4onjj]{display:flex;flex-wrap:wrap;justify-content:center;align-items:baseline;gap:.6rem 1.1rem;border-top:1px solid var(--page-hairline);background:var(--page-bg);padding:2rem clamp(1.5rem,4vw,3rem) 2.4rem;font-family:var(--font-display);font-size:.75rem;color:var(--page-ink-faint);margin-top:auto}.footer[data-astro-cid-dwl4onjj] a[data-astro-cid-dwl4onjj]{color:var(--page-ink-faint);text-decoration:none;transition:color .2s ease}.footer[data-astro-cid-dwl4onjj] a[data-astro-cid-dwl4onjj]:hover{color:var(--page-ink)}.footer[data-astro-cid-dwl4onjj] span[data-astro-cid-dwl4onjj][aria-hidden]{color:var(--page-ink-faint)}