.site-header{position:sticky;top:0;left:0;width:100%;height:var(--header-height);background-color:#171a20e0;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--border-subtle);z-index:100;transition:background-color var(--duration-normal) ease,border-color var(--duration-normal) ease}.header-inner{display:flex;align-items:center;justify-content:space-between;height:100%;gap:1.5rem}.brand-link{display:flex;align-items:center;gap:12px;text-decoration:none;flex-shrink:0}.brand-logo-svg{height:30px;width:auto;transition:opacity var(--duration-fast) ease}.brand-link:hover .brand-logo-svg{opacity:.85}.nav-divisions{display:flex;align-items:center;gap:2px;background:var(--bg-surface);padding:3px 4px;border-radius:var(--radius-full);border:1px solid var(--border-subtle)}.nav-division-btn{padding:6px 14px;border-radius:var(--radius-full);font-family:var(--font-division);font-size:.72rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--text-dim);transition:all var(--duration-fast) var(--ease-mechanical);position:relative}.nav-division-btn:hover{color:var(--text-main);background:#f5f2ea0f}.nav-division-btn.active{color:var(--pynorva-ink);background:var(--pynorva-citron)}.header-actions{display:flex;align-items:center;gap:8px;flex-shrink:0}.nav-action-link{font-family:var(--font-mono);font-size:.75rem;letter-spacing:.08em;color:var(--text-dim);padding:8px 10px;border-radius:var(--radius-sm);transition:color var(--duration-fast) ease}.nav-action-link:hover{color:var(--text-main)}.btn-icon{display:flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:var(--radius-sm);border:1px solid var(--border-subtle);background:var(--bg-surface);color:var(--text-dim);transition:all var(--duration-fast) ease}.btn-icon:hover{color:var(--text-main);border-color:var(--border-medium);background:var(--bg-surface-elevated)}.btn-lang-toggle{display:flex;align-items:center;justify-content:center;padding:6px 10px;border-radius:var(--radius-sm);border:1px solid var(--border-medium);background:var(--bg-surface);color:var(--text-main);font-family:var(--font-mono);font-size:.72rem;font-weight:700;letter-spacing:.08em;transition:all var(--duration-fast) ease}.btn-lang-toggle:hover{background:var(--pynorva-citron);color:var(--pynorva-ink);border-color:var(--pynorva-citron)}.btn-inquire{font-family:var(--font-mono);font-size:.72rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;padding:7px 16px;border-radius:var(--radius-full);border:1px solid var(--border-medium);background:transparent;color:var(--text-main);transition:all var(--duration-fast) var(--ease-mechanical)}.btn-inquire:hover{background:var(--pynorva-paper);color:var(--pynorva-ink);border-color:var(--pynorva-paper)}.mobile-nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:36px;height:36px;padding:8px}.mobile-nav-toggle span{display:block;width:100%;height:2px;background-color:var(--text-main)}@media(max-width:1024px){.nav-divisions{display:none}.mobile-nav-toggle{display:flex}}