/* nav styles */
.fm-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96) 0%, rgba(238, 248, 255, 0.9) 100%);
  border-bottom: 2px solid rgba(0, 117, 174, 0.5);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
  transition: background 0.2s ease, box-shadow 0.2s ease, backdrop-filter 0.2s ease;
}

.fm-header--glass {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.55) 0%, rgba(236, 247, 255, 0.45) 100%);
  backdrop-filter: blur(18px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.12);
}

body.fm-dark .fm-header {
  background: linear-gradient(180deg, rgba(11, 21, 32, 0.98) 0%, rgba(16, 30, 44, 0.92) 100%);
  border-bottom: 1px solid rgba(88, 182, 233, 0.4);
  box-shadow: 0 10px 22px rgba(2, 8, 14, 0.7);
}

body.fm-dark .fm-header--glass {
  background: linear-gradient(180deg, rgba(15, 31, 45, 0.75) 0%, rgba(12, 24, 35, 0.65) 100%);
  backdrop-filter: blur(20px);
}

body.fm-dark .fm-nav-link,
body.fm-dark .fm-dropdown__link,
body.fm-dark .fm-region-dropdown__link {
  color: var(--color-text);
}

body.fm-dark .fm-dropdown,
body.fm-dark .fm-region-dropdown,
body.fm-dark .fm-nav__list .sub-menu {
  background: #0f2233;
  border-color: #20374a;
}

body.fm-dark .fm-nav__list .sub-menu li a {
  color: var(--color-text);
  border-bottom-color: #1a3045;
}

.fm-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 12px;
  padding-bottom: 12px;
}

.fm-logo img { height: 50px; width: auto; }

.fm-nav__list {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 4px;
}

.fm-nav-link {
  display: block;
  padding: 8px 12px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-secondary);
  background: none;
  border: none;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
  white-space: nowrap;
}

.fm-theme-toggle {
  border-radius: 999px;
  background: linear-gradient(180deg, #ffffff 0%, #e9f4fb 100%);
  border: 1px solid rgba(0, 117, 174, 0.25);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.fm-theme-toggle__icon {
  display: inline-flex;
}

body.fm-dark .fm-theme-toggle {
  background: linear-gradient(180deg, #172a3a 0%, #0f2233 100%);
  border-color: rgba(88, 182, 233, 0.3);
}

.fm-nav-link:hover,
.fm-nav-link[aria-expanded="true"] {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.fm-nav-item--dropdown { position: relative; }

.fm-dropdown,
.fm-region-dropdown,
.fm-nav__list .sub-menu {
  display: none;
  position: absolute;
  top: calc(100% + 2px);
  left: 0;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-top: 2px solid var(--color-primary);
  border-radius: 0 0 var(--border-radius) var(--border-radius);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
  list-style: none;
  padding: 0;
  margin: 0;
  min-width: 200px;
  z-index: 100;
}

.fm-dropdown.is-open,
.fm-region-dropdown.is-open,
.fm-nav__list .sub-menu.is-open { display: block; }

.fm-dropdown__link,
.fm-region-dropdown__link,
.fm-nav__list .sub-menu li a {
  display: block;
  padding: 10px 16px;
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--color-secondary);
  text-decoration: none;
  border-bottom: 1px solid #f0f0f0;
  transition: background 0.15s, color 0.15s;
  white-space: nowrap;
}

.fm-nav__list .sub-menu li:last-child a { border-bottom: none; }

.fm-dropdown__link:hover,
.fm-region-dropdown__link:hover,
.fm-nav__list .sub-menu li a:hover {
  background: var(--color-light-bg);
  color: var(--color-primary);
}

.fm-dropdown__link--disabled {
  color: var(--color-muted);
  cursor: default;
  pointer-events: none;
}

/* Caret on wp_nav_menu parent items */
.fm-nav__list .menu-item-has-children > a.fm-nav-link::after {
  content: '▾';
  margin-left: 4px;
  font-size: 0.75em;
  vertical-align: middle;
}

.fm-nav-item--region { position: relative; }
.fm-nav-item--region .fm-region-dropdown { left: auto; right: 0; }

.fm-nav-item--search { position: relative; }

.fm-search-form {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  width: 34px;
  overflow: hidden;
  transition: width 0.2s ease;
}

.fm-search-form.is-open {
  width: 220px;
}

.fm-search-input {
  width: 100%;
  padding: 6px 0;
  border: none;
  border-bottom: 2px solid var(--color-border);
  background: transparent;
  font-size: 0.9rem;
  color: var(--color-secondary);
  outline: none;
  opacity: 0;
  transition: opacity 0.15s ease;
}

.fm-search-form.is-open .fm-search-input {
  opacity: 1;
}

.fm-search-input:focus {
  border-bottom-color: var(--color-primary);
}


.fm-search-toggle {
  padding: 4px;
}

.fm-search-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  font-size: 0.95rem;
}

.fm-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.fm-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-secondary);
  border-radius: 2px;
  transition: transform 0.2s;
}

/* WordPress wp_nav_menu sub-menus (.menu-item-has-children) */
.fm-nav__list .menu-item-has-children { position: relative; }

@media (max-width: 900px) {
  .fm-hamburger { display: flex; }
  .fm-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-white);
    border-top: 2px solid var(--color-primary);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    padding: 16px 0;
  }
  .fm-nav.is-open { display: block; }
  .fm-nav__list { flex-direction: column; align-items: flex-start; gap: 0; }
  .fm-nav-link { width: 100%; padding: 12px 20px; }
  .fm-dropdown, .fm-region-dropdown, .fm-nav__list .sub-menu {
    position: static;
    border: none;
    border-top: none;
    box-shadow: none;
    padding-left: 20px;
  }

  .fm-search-form {
    width: 34px;
  }

  .fm-search-form.is-open {
    width: 100%;
  }
}