.site-header{background:var(--color-surface);box-shadow:0 2px 4px rgb(0 0 0 / .05);position:relative;z-index:100}.header-container{display:flex;align-items:center;justify-content:space-between;padding:0 15px;height:60px;max-width:1200px;margin:0 auto}.site-branding{display:flex;flex-direction:column;justify-content:center;align-items:center}.custom-logo-link img{max-height:50px;width:auto;display:block;object-fit:contain}.site-title{margin:0;font-size:20px;font-weight:700;line-height:1}.site-title a{color:var(--color-text-main);text-decoration:none}.site-description{margin:2px 0 0;font-size:11px;color:var(--color-text-light);line-height:1}.main-navigation ul{list-style:none;margin:0;padding:0;display:flex;gap:20px}.main-navigation a{display:block;text-decoration:none;color:var(--color-text-main);font-weight:500;padding:10px 0;transition:color 0.3s}.main-navigation a:hover{color:var(--color-primary)}.header-search{position:relative;display:flex;align-items:center}.mobile-search-toggle{display:none;background:#fff0;border:none;padding:10px;cursor:pointer;color:var(--color-text-main)}.header-search .search-form{display:flex;align-items:center;border:1px solid var(--color-border);border-radius:20px;padding:0 10px;background:var(--color-surface-alt)}.header-search .search-field{border:none;background:#fff0;padding:8px 10px;outline:none;font-size:14px}.header-search .search-submit{background:none;border:none;padding:5px;cursor:pointer;color:var(--color-text-muted);display:flex;align-items:center;justify-content:center}.menu-toggle{display:none;background:#fff0;border:none;padding:10px;cursor:pointer}.hamburger-box{width:24px;height:18px;display:inline-block;position:relative}.hamburger-inner,.hamburger-inner::before,.hamburger-inner::after{width:24px;height:2px;background-color:var(--color-text-main);border-radius:4px;position:absolute;transition:transform 0.15s ease}.hamburger-inner{top:50%;margin-top:-1px;display:block}.hamburger-inner::before,.hamburger-inner::after{content:"";display:block}.hamburger-inner::before{top:-8px}.hamburger-inner::after{bottom:-8px}@media screen and (max-width:768px){.menu-toggle{display:block}.mobile-search-toggle{display:block}.header-search .search-form{display:none;position:absolute;top:50px;right:0;width:250px;background:var(--color-surface);box-shadow:0 4px 6px rgb(0 0 0 / .1);z-index:101;padding:5px}.header-search .search-form.active{display:flex}.header-search .search-field{width:100%}.header-search .search-field:focus{width:100%}.main-navigation{display:none;position:absolute;top:60px;left:0;width:100%;background:var(--color-surface);box-shadow:0 4px 6px rgb(0 0 0 / .1);padding:20px;box-sizing:border-box;border-top:1px solid var(--color-border-light);z-index:99}.main-navigation.toggled{display:block!important}.main-navigation ul{flex-direction:column;gap:0}.main-navigation a{padding:15px 0;border-bottom:1px solid var(--color-border-alt)}.main-navigation li:last-child a{border-bottom:none}}