.sticky-header{z-index:50;padding:var(--spacing-4) 0;-webkit-backdrop-filter:blur(8px);border-bottom:1px solid var(--color-border);box-shadow:var(--shadow-sm);background-color:#fffffff2;position:sticky;top:0}.sticky-header .container{height:40px}.logo-brand{text-decoration:none}.logo-text{letter-spacing:-.02em;align-items:center;font-family:Inter,sans-serif;font-size:1.5rem;font-weight:800;display:flex}.logo-plc{color:#0056a3}.logo-cnc{color:#f37021;background:0 0;-webkit-background-clip:unset;-webkit-text-fill-color:unset}.logo-soft{color:#00a651;text-transform:none}.nav-links{gap:var(--spacing-8);display:flex}.nav-links a{color:var(--color-text-muted);transition:color var(--transition-fast);font-weight:500}.nav-links a:hover{color:var(--color-primary)}.lang-switcher{align-items:center;gap:10px;display:flex}.flag-icon{border:2px solid #0000;border-radius:4px;justify-content:center;align-items:center;transition:transform .2s,border-color .2s,opacity .2s;display:inline-flex;overflow:hidden;box-shadow:0 1px 4px #0000002e}.flag-icon img{object-fit:cover;width:30px;height:20px;display:block}.flag-icon.active{border-color:var(--color-primary);transform:scale(1.15);box-shadow:0 2px 8px #00000040}.flag-icon:not(.active){opacity:.55}.flag-icon:not(.active):hover{opacity:1;transform:scale(1.08)}.z-50{z-index:50}.mobile-only,.mobile-menu{display:none}@media (max-width:768px){.desktop-only{display:none!important}.mobile-only{color:var(--color-text);display:flex}.mobile-menu{background-color:var(--color-bg);z-index:40;width:100%;height:100vh;transition:transform var(--transition-normal);opacity:0;flex-direction:column;justify-content:center;display:flex;position:fixed;top:0;left:0;transform:translateY(-100%)}.mobile-menu.open{opacity:1;transform:translateY(0)}.mobile-nav-links{align-items:center;gap:var(--spacing-8);flex-direction:column;font-size:1.5rem;display:flex}.mobile-nav-links a{color:var(--color-text);font-weight:600}.mobile-actions{width:100%;padding:0 var(--spacing-4)}.max-w-xs{max-width:20rem}}