.site-header{background:#fff;border-bottom:1px solid #e5e7eb;padding:1rem 0;position:sticky;top:0;z-index:100;box-shadow:0 1px 3px #0000001a}.header-container{max-width:1200px;margin:0 auto;padding:0 1rem;display:flex;align-items:center;justify-content:space-between;gap:2rem}.header-logo .logo-link{font-size:1.5rem;font-weight:700;color:#1f2937;text-decoration:none;transition:color .2s}.header-logo .logo-link:hover{color:#3b82f6}.header-nav{flex:1}.nav-list{display:flex;list-style:none;margin:0;padding:0;gap:1.5rem;align-items:center}.nav-item{position:relative}.nav-link{display:flex;align-items:center;gap:.5rem;padding:.5rem 0;color:#4b5563;text-decoration:none;font-weight:500;transition:color .2s;border-bottom:2px solid transparent}.nav-link:hover{color:#3b82f6;border-bottom-color:#3b82f6}.nav-item.active>.nav-link{color:#3b82f6;border-bottom-color:#3b82f6}.nav-link.disabled{color:#9ca3af;cursor:not-allowed}.nav-icon{font-size:1.2rem}.nav-submenu{position:absolute;top:100%;left:0;background:#fff;border:1px solid #e5e7eb;border-radius:.5rem;box-shadow:0 4px 6px #0000001a;list-style:none;margin:0;padding:.5rem 0;min-width:200px;opacity:0;visibility:hidden;transform:translateY(-10px);transition:all .2s}.nav-item.has-children:hover .nav-submenu{opacity:1;visibility:visible;transform:translateY(0)}.nav-submenu .nav-item{width:100%}.nav-submenu .nav-link{padding:.75rem 1.5rem;border-bottom:none}.nav-submenu .nav-link:hover{background:#f3f4f6}.header-lang-switcher{display:flex;align-items:center}.lang-switcher{display:flex;gap:.5rem;background:#f3f4f6;border-radius:.5rem;padding:.25rem}.lang-link{padding:.5rem .75rem;color:#6b7280;text-decoration:none;font-weight:500;font-size:.875rem;border-radius:.375rem;transition:all .2s}.lang-link:hover{background:#e5e7eb;color:#1f2937}.lang-link.active{background:#3b82f6;color:#fff}.site-footer{background:#1f2937;color:#d1d5db;padding:3rem 0 1.5rem;margin-top:4rem}.footer-container{max-width:1200px;margin:0 auto;padding:0 1rem}.footer-nav{margin-bottom:2rem}.footer-nav-list{display:flex;flex-wrap:wrap;list-style:none;margin:0;padding:0;gap:2rem}.footer-nav-item{margin:0}.footer-nav-link{color:#d1d5db;text-decoration:none;font-size:.875rem;transition:color .2s}.footer-nav-link:hover{color:#fff}.footer-nav-link.disabled{color:#6b7280;cursor:not-allowed}.footer-copyright{padding-top:2rem;border-top:1px solid #374151;text-align:center;font-size:.875rem;color:#9ca3af}.main-content{min-height:calc(100vh - 200px)}@media(max-width:768px){.header-container{flex-direction:column;gap:1rem}.nav-list{flex-direction:column;gap:.5rem;width:100%}.nav-submenu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:none;margin-left:1rem}.footer-nav-list{flex-direction:column;gap:1rem}}