.site-header { background: var(--color-header-bg); border-bottom: 1px solid var(--color-border); }
.has-sticky-header .site-header { position: sticky; top: 0; z-index: 200; }
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: var(--space-m);
  padding-top: var(--header-padding-y, var(--space-m));
  padding-bottom: var(--header-padding-y, var(--space-m));
  min-height: var(--header-min-height, 0);
}

/* Branding */
.site-branding { display: flex; flex-direction: column; gap: var(--space-xs); }
.custom-logo-link { display: inline-block; }
.custom-logo { height: 56px; width: auto; max-width: 100%; }
.site-title { font-size: var(--font-size-lg); font-weight: 700; margin: 0; line-height: 1.2; }
.site-title a { color: var(--color-text); }
.site-title a:hover { color: var(--color-primary); text-decoration: none; }
.site-description { font-size: var(--font-size-sm); color: var(--color-muted); margin: 0; }

.header-custom-html { font-size: var(--font-size-sm); }

/* Navigation wrapper */
.main-navigation {
  flex: 1; display: flex; justify-content: flex-end; align-items: center;
  gap: var(--space-s); position: relative;
}

/* Menu list (inline by default) */
.nav-menu { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; align-items: stretch; }
.nav-menu > li { position: relative; }
.nav-menu a {
  display: block; padding: var(--space-s) var(--space-m);
  color: var(--color-text); font-size: var(--font-size-sm); font-weight: 500;
  white-space: nowrap; transition: color .15s;
}
.nav-menu a:hover, .nav-menu a:focus,
.nav-menu .current-menu-item > a, .nav-menu .current-menu-ancestor > a {
  color: var(--color-primary); text-decoration: none;
}

/* Sub-menus (hover dropdowns in inline mode) */
.nav-menu .sub-menu {
  display: none; position: absolute; top: 100%; left: 0;
  background: var(--color-bg); border: 1px solid var(--color-border);
  border-radius: var(--radius-s); box-shadow: var(--shadow-m);
  min-width: 200px; z-index: 500; list-style: none; margin: 0; padding: var(--space-xs) 0;
}
.nav-menu .sub-menu li { position: relative; }
.nav-menu .sub-menu a { font-weight: 400; padding: var(--space-xs) var(--space-l); }
.nav-menu li:hover > .sub-menu, .nav-menu li:focus-within > .sub-menu { display: block; }
.nav-menu .sub-menu .sub-menu { top: 0; left: 100%; }

/* Burger control (hidden unless a burger mode is active) */
.medko-menu-toggle-checkbox { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
.medko-menu-toggle { display: none; cursor: pointer; padding: var(--space-xs) var(--space-s); align-items: center; }
.medko-burger, .medko-burger::before, .medko-burger::after {
  display: block; width: 24px; height: 2px; background: var(--color-text);
  border-radius: 2px; transition: transform .2s, opacity .2s;
}
.medko-burger { position: relative; }
.medko-burger::before, .medko-burger::after { content: ""; position: absolute; left: 0; }
.medko-burger::before { top: -7px; }
.medko-burger::after  { top: 7px; }
.medko-menu-toggle-checkbox:focus-visible + .medko-menu-toggle { outline: 2px solid var(--color-primary); outline-offset: 2px; }

/* Burger -> X animation when open */
.medko-menu-toggle-checkbox:checked + .medko-menu-toggle .medko-burger { background: transparent; }
.medko-menu-toggle-checkbox:checked + .medko-menu-toggle .medko-burger::before { top: 0; transform: rotate(45deg); }
.medko-menu-toggle-checkbox:checked + .medko-menu-toggle .medko-burger::after  { top: 0; transform: rotate(-45deg); }

/* ---- Burger active state (shared) ----
   Applied always for .nav-burger-always, and within the mobile media query
   for .nav-burger-mobile. */
.nav-burger-always .main-navigation .medko-menu-toggle { display: inline-flex; }
.nav-burger-always .main-navigation .nav-menu {
  display: none; position: absolute; top: 100%; right: 0;
  flex-direction: column; min-width: 240px;
  background: var(--color-bg); border: 1px solid var(--color-border);
  border-radius: var(--radius-s); box-shadow: var(--shadow-m);
  padding: var(--space-xs) 0; z-index: 500;
}
.nav-burger-always .main-navigation .medko-menu-toggle-checkbox:checked ~ .nav-menu { display: flex; }
.nav-burger-always .main-navigation .nav-menu a { padding: var(--space-s) var(--space-l); border-bottom: 1px solid var(--color-border); }
.nav-burger-always .main-navigation .nav-menu > li:last-child > a { border-bottom: none; }
.nav-burger-always .main-navigation .nav-menu .sub-menu {
  position: static; display: block; border: none; box-shadow: none; padding: 0 0 0 var(--space-l); min-width: 0;
}

@media (max-width: 767px) {
  .nav-burger-mobile .main-navigation .medko-menu-toggle { display: inline-flex; }
  .nav-burger-mobile .main-navigation .nav-menu {
    display: none; position: absolute; top: 100%; right: 0;
    flex-direction: column; min-width: 240px; width: 100%;
    background: var(--color-bg); border: 1px solid var(--color-border);
    border-radius: var(--radius-s); box-shadow: var(--shadow-m);
    padding: var(--space-xs) 0; z-index: 500;
  }
  .nav-burger-mobile .main-navigation .medko-menu-toggle-checkbox:checked ~ .nav-menu { display: flex; }
  .nav-burger-mobile .main-navigation .nav-menu a { padding: var(--space-s) var(--space-l); border-bottom: 1px solid var(--color-border); }
  .nav-burger-mobile .main-navigation .nav-menu > li:last-child > a { border-bottom: none; }
  .nav-burger-mobile .main-navigation .nav-menu .sub-menu {
    position: static; display: block; border: none; box-shadow: none; padding: 0 0 0 var(--space-l); min-width: 0;
  }

  /* Classic mode on small screens: stack the menu so it doesn't overflow */
  .nav-classic .header-inner { flex-direction: column; align-items: flex-start; }
  .nav-classic .main-navigation { width: 100%; justify-content: flex-start; }
  .nav-classic .nav-menu { flex-direction: column; width: 100%; }
  .nav-classic .nav-menu a { padding: var(--space-s) 0; border-bottom: 1px solid var(--color-border); }
  .nav-classic .nav-menu .sub-menu {
    position: static; display: block; border: none; box-shadow: none; padding-left: var(--space-l);
  }
}

/* ---- Header search ---- */
.header-search { position: relative; display: flex; align-items: center; }
.header-search .search-form { display: flex; gap: var(--space-s); }
.header-search--inline .search-field { min-width: 180px; }

.medko-search-toggle-checkbox { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
.medko-search-toggle { display: inline-flex; align-items: center; cursor: pointer; padding: var(--space-xs) var(--space-s); color: var(--color-text); }
.medko-search-toggle-checkbox:focus-visible + .medko-search-toggle { outline: 2px solid var(--color-primary); outline-offset: 2px; }
.header-search--toggle .header-search__panel {
  display: none; position: absolute; top: 100%; right: 0; z-index: 500;
  background: var(--color-bg); border: 1px solid var(--color-border);
  border-radius: var(--radius-s); box-shadow: var(--shadow-m);
  padding: var(--space-m); min-width: 280px;
}
.header-search--toggle .medko-search-toggle-checkbox:checked ~ .header-search__panel { display: block; }