.kf-header { position: sticky; top: 0; z-index: 50; background: var(--kf-white); box-shadow: 0 1px 0 var(--kf-border); }
.kf-header__top { display: flex; align-items: center; justify-content: space-between; min-height: 78px; gap: 20px; }
.kf-logo { display: inline-flex; align-items: center; gap: 12px; }
.kf-logo--image { display: inline-flex; max-width: min(320px, 58vw); }
.kf-logo--image img { display: block; width: auto; max-width: 100%; height: auto; max-height: 54px; object-fit: contain; }
.kf-logo__mark { display: grid; place-items: center; width: 42px; height: 42px; background: var(--kf-blue); color: var(--kf-white); font-weight: 900; border-radius: 7px; font-size: 1.5rem; }
.kf-logo strong { display: block; color: var(--kf-navy); font-size: 1.8rem; line-height: 1; letter-spacing: .02em; }
.kf-logo small { display: block; color: var(--kf-text); font-size: .78rem; margin-top: 4px; }
.kf-utility { display: flex; align-items: center; gap: 18px; font-size: .9rem; font-weight: 700; color: var(--kf-navy); }
.kf-icon-button, .kf-menu-toggle { display: inline-grid; place-items: center; min-width: 44px; min-height: 44px; border: 0; background: transparent; color: var(--kf-navy); cursor: pointer; font-size: 1.25rem; }
.kf-icon-button:focus-visible, .kf-menu-toggle:focus-visible, .kf-main-menu a:focus-visible, .kf-mobile-menu a:focus-visible { outline: 3px solid rgba(37,99,235,.28); outline-offset: 2px; border-radius: 6px; }
.kf-menu-toggle { position: relative; width: 44px; height: 44px; min-width: 44px; min-height: 44px; padding: 0; overflow: visible; }
.kf-menu-toggle span { position: absolute; left: 11px; display: block; width: 22px; height: 2px; border-radius: 999px; background: var(--kf-navy); transform-origin: center; transition: top .18s ease, transform .18s ease, opacity .14s ease; }
.kf-menu-toggle span:nth-child(1) { top: 15px; }
.kf-menu-toggle span:nth-child(2) { top: 21px; }
.kf-menu-toggle span:nth-child(3) { top: 27px; }
.kf-menu-toggle[aria-expanded="true"] span:nth-child(1) { top: 21px; transform: rotate(45deg); }
.kf-menu-toggle[aria-expanded="true"] span:nth-child(2) { top: 21px; opacity: 0; }
.kf-menu-toggle[aria-expanded="true"] span:nth-child(3) { top: 21px; transform: rotate(-45deg); }
.kf-mobile-actions { display: none; align-items: center; gap: 4px; }
.kf-header__nav { border-top: 1px solid var(--kf-border); }
.kf-main-menu, .kf-mobile-menu__list { display: flex; justify-content: center; gap: 34px; list-style: none; margin: 0; padding: 0; }
.kf-main-menu a { display: block; padding: 14px 0; color: var(--kf-navy); font-weight: 800; font-size: .92rem; }
.kf-main-menu a:hover { color: var(--kf-blue); }
.kf-mobile-menu { border-top: 1px solid var(--kf-border); background: var(--kf-white); padding: 8px 16px 14px; box-shadow: 0 14px 28px rgba(0,27,42,.08); overflow-x: hidden; }
.kf-mobile-menu ul, .kf-mobile-menu__list { display: flex; flex-direction: column; align-items: stretch; width: 100%; gap: 0; list-style: none; margin: 0; padding: 0; }
.kf-mobile-menu li { display: block; width: 100%; margin-top: 0; margin-bottom: 0; }
.kf-mobile-menu a, .kf-mobile-menu__list a { display: flex; align-items: center; width: 100%; min-height: 44px; padding: 9px 4px; border-bottom: 1px solid var(--kf-border); color: var(--kf-navy); font-weight: 800; }
.kf-mobile-menu .menu-item-has-children, .kf-mobile-menu__list .menu-item-has-children { display: grid; grid-template-columns: minmax(0, 1fr) 44px; align-items: start; }
.kf-mobile-menu .menu-item-has-children > a, .kf-mobile-menu__list .menu-item-has-children > a { min-width: 0; }
.kf-submenu-toggle { display: grid; place-items: center; width: 40px; height: 40px; margin-top: 3px; border: 1px solid var(--kf-border); border-radius: 6px; background: var(--kf-white); color: var(--kf-navy); font-size: 1.15rem; font-weight: 900; cursor: pointer; }
.kf-submenu-toggle[aria-expanded="true"] { background: var(--kf-navy); color: var(--kf-white); border-color: var(--kf-navy); }
.kf-mobile-menu .sub-menu, .kf-mobile-menu__list .sub-menu { display: flex; flex-direction: column; gap: 0; width: 100%; margin: 0; padding: 0 0 0 14px; list-style: none; background: #F7F9FC; }
.kf-mobile-menu .sub-menu[hidden], .kf-mobile-menu__list .sub-menu[hidden] { display: none; }
.kf-mobile-menu .menu-item-has-children > .sub-menu, .kf-mobile-menu__list .menu-item-has-children > .sub-menu { grid-column: 1 / -1; }
.kf-mobile-menu .sub-menu a, .kf-mobile-menu__list .sub-menu a { min-height: 42px; font-size: .92rem; font-weight: 700; }
.kf-header-search[hidden], .kf-mobile-menu[hidden] { display: none; }
.kf-header-search { border-top: 1px solid var(--kf-border); background: var(--kf-bg); padding: 12px 0; }
.kf-header-search__inner { max-width: 760px; }
.kf-header-search .kf-search-form { box-shadow: none; }