/* ============================================================
   MERI Navigation CSS
   ============================================================ */

/* ---- Header ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--meri-border);
  transition: box-shadow var(--duration-normal) var(--ease-out);
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: var(--space-lg);
}

/* ---- Logo ---- */
.site-branding {
  flex-shrink: 0;
  padding-left: 8px;
}

.meri-logo {
  display: block;
  height: 40px;
  width: auto;
  filter: none;
}

@media (min-width: 1025px) {
  .site-branding {
    padding-left: 12px;
  }
  .meri-logo {
    height: 44px;
  }
}

/* ---- Desktop Navigation ---- */
.main-navigation .primary-menu {
  display: flex;
  list-style: none;
  gap: 2px;
  margin: 0;
  padding: 0;
}

.primary-menu > li {
  position: relative;
}

.primary-menu > li > a {
  display: block;
  padding: 10px 16px;
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--meri-text);
  text-decoration: none;
  border-radius: var(--radius-full);
  transition: all var(--duration-fast) var(--ease-out);
  letter-spacing: 0.01em;
}

.primary-menu > li > a:hover {
  color: var(--meri-green);
  background: rgba(27, 94, 32, 0.06);
}

.primary-menu > li.current-menu-item > a,
.primary-menu > li.current-menu-parent > a {
  color: var(--meri-green);
  background: rgba(27, 94, 32, 0.08);
}

/* ---- Dropdown ---- */
.primary-menu .sub-menu {
  display: block;
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 220px;
  background: var(--meri-white);
  border: 1px solid var(--meri-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: var(--space-sm);
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all var(--duration-normal) var(--ease-out);
  z-index: 100;
}

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

.sub-menu li a {
  display: block;
  padding: 8px 16px;
  font-size: 0.85rem;
  color: var(--meri-text-light);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) var(--ease-out);
}

.sub-menu li a:hover {
  background: var(--meri-bg);
  color: var(--meri-green);
}

/* ---- Header CTA ---- */
.header-quote-btn {
  white-space: nowrap;
}

/* ---- Mobile Menu Toggle ---- */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
  z-index: 1001;
}

.hamburger-line {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--meri-text);
  border-radius: 2px;
  transition: all var(--duration-normal) var(--ease-out);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(2) {
  opacity: 0;
}
.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---- Mobile Menu Container ---- */
.mobile-menu-container {
  display: none;
  position: fixed;
  top: 68px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--meri-white);
  z-index: 999;
  overflow-y: auto;
  padding: var(--space-lg);
  opacity: 0;
  transform: translateY(-10px);
  transition: all var(--duration-normal) var(--ease-out);
}

.mobile-menu-container.active {
  opacity: 1;
  transform: translateY(0);
}

.mobile-menu {
  list-style: none;
  padding: 0;
  margin: 0;
}

.mobile-menu li {
  border-bottom: 1px solid var(--meri-border-light);
}

.mobile-menu li a {
  display: block;
  padding: 16px 0;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--meri-text);
  text-decoration: none;
}

.mobile-menu .sub-menu {
  list-style: none;
  padding-left: var(--space-md);
  margin-bottom: var(--space-sm);
}

.mobile-menu .sub-menu li a {
  font-size: 1rem;
  font-weight: 400;
  color: var(--meri-text-light);
  padding: 10px 0;
}

.mobile-cta {
  margin-top: var(--space-xl);
  text-align: center;
}

@media (max-width: 1024px) {
  .main-navigation {
    display: none;
  }
  .header-cta {
    display: none;
  }
  .mobile-menu-toggle {
    display: flex;
  }
  .mobile-menu-container {
    display: block;
  }
}

/* ---- Breadcrumb ---- */
.meri-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--meri-muted);
  padding: var(--space-md) 0;
  flex-wrap: wrap;
}

.meri-breadcrumb a {
  color: var(--meri-muted);
  text-decoration: none;
}

.meri-breadcrumb a:hover {
  color: var(--meri-green);
}

.meri-breadcrumb .sep {
  color: var(--meri-border);
}

.meri-breadcrumb .current {
  color: var(--meri-text);
  font-weight: 500;
}

/* ---- Skip Link ---- */
.skip-link:focus {
  position: absolute;
  top: 10px;
  left: 10px;
  background: var(--meri-gold);
  color: var(--meri-text);
  padding: 10px 20px;
  z-index: 9999;
  clip: auto;
  width: auto;
  height: auto;
}