.header[data-astro-cid-3ef6ksr2]{position:sticky;top:0;z-index:1000;height:var(--header-height);background:#0f0f1acc;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid transparent;transition:border-color var(--transition-base),background var(--transition-base)}.header[data-astro-cid-3ef6ksr2].scrolled{background:#0f0f1af2;border-bottom-color:var(--color-border)}.header-inner[data-astro-cid-3ef6ksr2]{display:flex;align-items:center;height:100%;gap:var(--space-lg)}.logo[data-astro-cid-3ef6ksr2]{display:flex;align-items:center;gap:var(--space-sm);color:var(--color-text);white-space:nowrap;flex-shrink:0}.logo-icon[data-astro-cid-3ef6ksr2]{width:28px;height:28px;flex-shrink:0}.logo-orbit[data-astro-cid-3ef6ksr2]{stroke:var(--color-accent);stroke-width:2;opacity:.4;transition:opacity var(--transition-fast)}.logo-dot[data-astro-cid-3ef6ksr2]{fill:var(--color-link);transition:fill var(--transition-fast)}.logo-text[data-astro-cid-3ef6ksr2]{font-size:1.125rem;font-weight:700;letter-spacing:-.02em}.logo[data-astro-cid-3ef6ksr2]:hover .logo-orbit[data-astro-cid-3ef6ksr2]{opacity:.8}.logo[data-astro-cid-3ef6ksr2]:hover .logo-text[data-astro-cid-3ef6ksr2]{color:var(--color-accent)}.nav-toggle-input[data-astro-cid-3ef6ksr2]{display:none}.nav-toggle[data-astro-cid-3ef6ksr2]{display:none;flex-direction:column;justify-content:center;gap:5px;width:2rem;height:2rem;cursor:pointer;z-index:1001;flex-shrink:0}.nav-toggle-bar[data-astro-cid-3ef6ksr2]{display:block;width:100%;height:2px;background:var(--color-text);border-radius:1px;transition:transform var(--transition-base),opacity var(--transition-base);transform-origin:center}.nav[data-astro-cid-3ef6ksr2]{display:flex;align-items:center;flex:1;gap:var(--space-lg)}.nav-list[data-astro-cid-3ef6ksr2]{display:flex;align-items:center;list-style:none;gap:var(--space-xs);flex:1}.nav-link[data-astro-cid-3ef6ksr2]{display:block;padding:var(--space-xs) var(--space-sm);font-size:.875rem;font-weight:500;color:var(--color-text-secondary);border-radius:var(--radius-sm);transition:color var(--transition-fast),background var(--transition-fast);white-space:nowrap}.nav-link[data-astro-cid-3ef6ksr2]:hover{color:var(--color-text);background:var(--color-surface-hover)}.header-actions[data-astro-cid-3ef6ksr2]{display:flex;align-items:center;gap:var(--space-md);flex-shrink:0}.header-cta[data-astro-cid-3ef6ksr2]{font-size:.8125rem;padding:var(--space-xs) var(--space-md)}.lang-switcher[data-astro-cid-3ef6ksr2]{position:relative}.lang-current[data-astro-cid-3ef6ksr2]{display:inline-flex;align-items:center;gap:var(--space-xs);padding:var(--space-xs) var(--space-sm);background:transparent;border:1px solid var(--color-border);border-radius:var(--radius-sm);color:var(--color-text-secondary);font-size:.8125rem;font-weight:600;cursor:pointer;transition:border-color var(--transition-fast),color var(--transition-fast);font-family:inherit}.lang-current[data-astro-cid-3ef6ksr2]:hover{border-color:var(--color-border-light);color:var(--color-text)}.lang-chevron[data-astro-cid-3ef6ksr2]{transition:transform var(--transition-fast)}.lang-switcher[data-astro-cid-3ef6ksr2].open .lang-chevron[data-astro-cid-3ef6ksr2]{transform:rotate(180deg)}.lang-dropdown[data-astro-cid-3ef6ksr2]{position:absolute;top:calc(100% + var(--space-xs));right:0;min-width:100%;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);list-style:none;overflow:hidden;opacity:0;visibility:hidden;transform:translateY(-4px);transition:opacity var(--transition-fast),transform var(--transition-fast),visibility var(--transition-fast);box-shadow:0 8px 24px #0000004d}.lang-switcher[data-astro-cid-3ef6ksr2].open .lang-dropdown[data-astro-cid-3ef6ksr2]{opacity:1;visibility:visible;transform:translateY(0)}.lang-option[data-astro-cid-3ef6ksr2]{display:block;padding:var(--space-sm) var(--space-md);font-size:.8125rem;font-weight:600;color:var(--color-text-secondary);transition:background var(--transition-fast),color var(--transition-fast)}.lang-option[data-astro-cid-3ef6ksr2]:hover{background:var(--color-surface-hover);color:var(--color-text)}.lang-option[data-astro-cid-3ef6ksr2].active{color:var(--color-accent)}@media(max-width:768px){.nav-toggle[data-astro-cid-3ef6ksr2]{display:flex;margin-left:auto}.nav[data-astro-cid-3ef6ksr2]{position:fixed;top:0;right:0;width:min(320px,85vw);height:100dvh;flex-direction:column;align-items:stretch;padding:calc(var(--header-height) + var(--space-lg)) var(--space-lg) var(--space-lg);background:var(--color-bg-alt);border-left:1px solid var(--color-border);transform:translate(100%);transition:transform var(--transition-base);gap:var(--space-lg);overflow-y:auto}.nav-toggle-input[data-astro-cid-3ef6ksr2]:checked~.nav[data-astro-cid-3ef6ksr2]{transform:translate(0)}.nav-toggle-input[data-astro-cid-3ef6ksr2]:checked~.nav-toggle[data-astro-cid-3ef6ksr2] .nav-toggle-bar[data-astro-cid-3ef6ksr2]:nth-child(1){transform:translateY(7px) rotate(45deg)}.nav-toggle-input[data-astro-cid-3ef6ksr2]:checked~.nav-toggle[data-astro-cid-3ef6ksr2] .nav-toggle-bar[data-astro-cid-3ef6ksr2]:nth-child(2){opacity:0}.nav-toggle-input[data-astro-cid-3ef6ksr2]:checked~.nav-toggle[data-astro-cid-3ef6ksr2] .nav-toggle-bar[data-astro-cid-3ef6ksr2]:nth-child(3){transform:translateY(-7px) rotate(-45deg)}.nav-list[data-astro-cid-3ef6ksr2]{flex-direction:column;align-items:stretch;gap:0}.nav-link[data-astro-cid-3ef6ksr2]{font-size:1rem;padding:var(--space-sm) var(--space-sm)}.header-actions[data-astro-cid-3ef6ksr2]{flex-direction:column;align-items:stretch;gap:var(--space-sm)}.header-cta[data-astro-cid-3ef6ksr2]{text-align:center;justify-content:center;padding:var(--space-sm) var(--space-lg)}.lang-dropdown[data-astro-cid-3ef6ksr2]{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;display:flex;gap:var(--space-xs);background:transparent;border:none}.lang-current[data-astro-cid-3ef6ksr2]{display:none}.lang-option[data-astro-cid-3ef6ksr2]{padding:var(--space-xs) var(--space-sm);border:1px solid var(--color-border);border-radius:var(--radius-sm);text-align:center}}