.site-header{padding:15px 0}.site-header.is-scrolled{box-shadow:0 8px 20px rgba(0,0,0,0.08)}.header-container{display:flex;align-items:center;justify-content:space-between;max-width:var(--container-width,1280px);margin:0 auto;padding:0 20px}.site-branding{flex-shrink:0}.site-title a{color:var(--primary-color);text-decoration:none;font-size:1.4rem;font-weight:700}.main-navigation{flex-grow:1;margin-left:40px}.main-navigation ul{list-style:none;margin:0;padding:0;display:flex;gap:20px}.main-navigation a{text-decoration:none;color:#444;font-weight:600;font-size:0.95rem;transition:color var(--transition-fast,0.18s ease)}.main-navigation a:hover{color:var(--primary-color)}.header-cta{margin-left:30px;flex-shrink:0}.nav-toggle{display:none;align-items:center;justify-content:center;min-width:44px;min-height:44px;background:none;border:none;cursor:pointer;padding:10px;flex-direction:column;gap:5px;touch-action:manipulation}.nav-toggle span{display:block;width:25px;height:2px;background:#444;border-radius:2px;transition:all 0.3s ease}.nav-toggle.is-active span:nth-child(1){transform:translateY(7px) rotate(45deg)}.nav-toggle.is-active span:nth-child(2){opacity:0}.nav-toggle.is-active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}@media (max-width:768px){.nav-toggle{display:flex}.main-navigation{margin-left:0;position:absolute;top:100%;left:0;right:0;background:#fff;border-top:1px solid #f0f0f0;box-shadow:0 8px 20px rgba(0,0,0,0.08);display:none;z-index:999}.main-navigation.is-open{display:block}.main-navigation ul{flex-direction:column;gap:0;padding:10px 0}.main-navigation li{border-bottom:1px solid #f5f5f5}.main-navigation a{display:block;padding:14px 20px;font-size:1rem}.header-cta{margin-left:10px}}