/* ============================================================
   KMACIMS EAT — Header & Navigation Styles
   ============================================================ */

/* ── Site Header ── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  background: rgba(248, 248, 245, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition-base), background var(--transition-base);
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
  background: rgba(248, 248, 245, 0.98);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: var(--space-4);
}

/* ── Site Branding / Logo ── */
.site-branding {
  flex-shrink: 0;
}

.site-branding .custom-logo {
  height: 44px;
  width: auto;
  display: block;
}

.site-logo-text {
  display: flex;
  align-items: baseline;
  gap: 4px;
  text-decoration: none;
  line-height: 1;
}

.logo-kmacims {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-black);
  color: var(--clr-navy);
  letter-spacing: -0.03em;
}

.logo-eat {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-black);
  color: var(--clr-green);
  letter-spacing: -0.03em;
}

/* ── Primary Nav ── */
.primary-nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
}

.nav-menu li {
  position: relative;
}

.nav-menu > li > a {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--clr-charcoal);
  text-decoration: none;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.nav-menu > li > a:hover,
.nav-menu > li.current-menu-item > a,
.nav-menu > li.current-menu-parent > a {
  color: var(--clr-navy);
  background: var(--clr-navy-pale);
}

/* Dropdown indicator */
.nav-menu li.menu-item-has-children > a::after {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  transition: transform var(--transition-fast);
}

.nav-menu li.menu-item-has-children:hover > a::after {
  transform: rotate(-135deg) translateY(-2px);
}

/* ── Dropdown Submenu ── */
.nav-menu .sub-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 220px;
  background: var(--clr-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  list-style: none;
  padding: var(--space-2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition-base);
  z-index: var(--z-dropdown);
}

.nav-menu li:hover > .sub-menu,
.nav-menu li:focus-within > .sub-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-menu .sub-menu li a {
  display: block;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--clr-charcoal);
  transition: all var(--transition-fast);
}

.nav-menu .sub-menu li a:hover {
  background: var(--clr-navy-pale);
  color: var(--clr-navy);
}

/* ── Header Actions ── */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}

.header-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  border: none;
  background: transparent;
  color: var(--clr-charcoal);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.header-btn:hover {
  background: var(--clr-navy-pale);
  color: var(--clr-navy);
}

.header-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  border: 2px solid var(--clr-navy-pale);
}

/* ── Search Bar ── */
.header-search-bar {
  /* Completely invisible and out of layout when closed */
  border-top: 1px solid transparent;
  padding-block: 0;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition:
    max-height   var(--transition-slow),
    opacity      var(--transition-base),
    padding      var(--transition-base),
    border-color var(--transition-base),
    visibility   0s linear var(--transition-slow);
}

.header-search-bar.open {
  max-height: 80px;
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  padding-block: var(--space-4);
  border-top-color: var(--color-border);
  transition:
    max-height   var(--transition-slow),
    opacity      var(--transition-base),
    padding      var(--transition-base),
    border-color var(--transition-base),
    visibility   0s linear 0s;
}

.header-search-bar .container {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.search-form {
  display: flex;
  flex: 1;
  gap: var(--space-2);
}

.search-field {
  flex: 1;
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  background: var(--clr-white);
  color: var(--color-text);
  transition: border-color var(--transition-fast);
}

.search-field:focus {
  outline: none;
  border-color: var(--clr-navy);
}

.search-submit {
  padding: var(--space-2) var(--space-4);
  background: var(--clr-navy);
  color: var(--clr-white);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-weight: var(--weight-medium);
  transition: background var(--transition-fast);
}

.search-submit:hover { background: var(--clr-navy-dark); }

.search-close-btn {
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  font-size: var(--text-sm);
  padding: var(--space-2);
}

/* ── Mobile Menu Button ── */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  border: none;
  background: transparent;
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-md);
}

.hamburger-line {
  display: block;
  height: 2px;
  background: var(--clr-charcoal);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.mobile-menu-btn[aria-expanded="true"] .hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.mobile-menu-btn[aria-expanded="true"] .hamburger-line:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn[aria-expanded="true"] .hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── Mobile Drawer ── */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(360px, 90vw);
  background: var(--clr-white);
  z-index: var(--z-modal);
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.mobile-drawer[aria-hidden="false"] {
  transform: translateX(0);
}

.mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: calc(var(--z-modal) - 1);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.mobile-overlay.active {
  opacity: 1;
  visibility: visible;
}

.mobile-drawer-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: var(--space-4);
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-4);
}

.mobile-close-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: none;
  background: var(--clr-gray-100);
  border-radius: var(--radius-md);
  cursor: pointer;
  color: var(--clr-charcoal);
}

.mobile-nav-menu {
  list-style: none;
  flex: 1;
}

.mobile-nav-menu li a {
  display: block;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  font-weight: var(--weight-medium);
  color: var(--clr-charcoal);
  transition: all var(--transition-fast);
}

.mobile-nav-menu li a:hover,
.mobile-nav-menu li.current-menu-item a {
  background: var(--clr-navy-pale);
  color: var(--clr-navy);
}

.mobile-nav-menu .sub-menu {
  list-style: none;
  padding-left: var(--space-4);
}

.mobile-nav-menu .sub-menu li a {
  font-size: var(--text-sm);
  padding: var(--space-2) var(--space-4);
}

.mobile-drawer-footer {
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-4);
}

/* ── Responsive: show mobile button ── */
@media (max-width: 1023px) {
  .primary-nav    { display: none; }
  .mobile-menu-btn{ display: flex; }

  .header-actions .btn {
    display: none;
  }

  .header-actions .header-dashboard-btn {
    display: flex;
  }
}

@media (max-width: 480px) {
  .header-search-btn { display: none; }
}