/* css/navbar.css — Transparent Floating Navbar */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  transition: background-color var(--duration-normal),
              backdrop-filter var(--duration-normal),
              border-color var(--duration-normal),
              transform var(--duration-normal);
  background: transparent;
  border-bottom: 1px solid transparent;
}

.navbar.is-scrolled {
  background: rgba(250, 249, 246, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-color: var(--color-border-light);
}

.navbar.is-hidden {
  transform: translateY(-100%);
}

.navbar-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--section-px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

@media (min-width: 640px) {
  .navbar-container {
    padding: 0 var(--space-6);
  }
}

@media (min-width: 1024px) {
  .navbar-container {
    padding: 0 var(--space-8);
  }
}

/* ===== LOGO ===== */

.navbar-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.navbar-logo img {
  height: 28px;
  width: auto;
}

.navbar-logo-text {
  font-size: var(--text-card-title);
  font-weight: 600;
  color: var(--color-text);
}

/* ===== NAV LINKS ===== */

.navbar-links {
  display: none;
  align-items: center;
  gap: var(--space-8);
}

@media (min-width: 1024px) {
  .navbar-links {
    display: flex;
  }
}

.nav-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--duration-fast);
  cursor: pointer;
  background: none;
  border: none;
  font-family: var(--font-family);
  padding: 0;
}

.nav-link:hover {
  color: var(--color-brand);
}

/* ===== DROPDOWNS ===== */

.nav-dropdown {
  position: relative;
}

.nav-dropdown-trigger {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-dropdown-trigger svg {
  width: 14px;
  height: 14px;
  transition: transform var(--duration-fast);
}

.nav-dropdown.is-open .nav-dropdown-trigger svg {
  transform: rotate(180deg);
}

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  min-width: 220px;
  background: var(--color-surface-solid);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  padding: var(--space-2);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-fast), visibility var(--duration-fast);
}

.nav-dropdown.is-open .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
}

.nav-dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--color-text);
  transition: background-color var(--duration-fast), color var(--duration-fast);
}

.nav-dropdown-item:hover {
  background: var(--color-brand-a6);
  color: var(--color-brand);
}

.nav-dropdown-icon {
  width: 20px;
  height: 20px;
  color: var(--color-text-muted);
  flex-shrink: 0;
}

/* ===== NAV CTA ===== */

.navbar-cta {
  display: none;
}

@media (min-width: 1024px) {
  .navbar-cta {
    display: block;
  }
}

/* ===== HAMBURGER ===== */

.hamburger {
  display: flex;
  padding: var(--space-2);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text);
}

@media (min-width: 1024px) {
  .hamburger {
    display: none;
  }
}

.hamburger svg {
  width: 20px;
  height: 20px;
}

/* ===== MOBILE MENU ===== */

.mobile-menu {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-bg);
  padding: var(--space-6);
  overflow-y: auto;
  z-index: calc(var(--z-nav) - 1);
}

.mobile-menu.is-open {
  display: block;
}

@media (min-width: 1024px) {
  .mobile-menu {
    display: none !important;
  }
}

.mobile-menu-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.mobile-menu-link {
  display: block;
  padding: var(--space-3) 0;
  font-size: var(--text-body);
  font-weight: 500;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
}

.mobile-menu-link:hover {
  color: var(--color-brand);
}

/* Mobile accordion */
.mobile-accordion-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-3) 0;
  background: none;
  border: none;
  border-bottom: 1px solid var(--color-border);
  font-family: var(--font-family);
  font-size: var(--text-body);
  font-weight: 500;
  color: var(--color-text);
  cursor: pointer;
}

.mobile-accordion-trigger svg {
  width: 16px;
  height: 16px;
  transition: transform var(--duration-fast);
}

.mobile-accordion.is-open .mobile-accordion-trigger svg {
  transform: rotate(180deg);
}

.mobile-accordion-content {
  display: none;
  padding: var(--space-2) 0 var(--space-4) var(--space-4);
}

.mobile-accordion.is-open .mobile-accordion-content {
  display: block;
}

.mobile-accordion-content a {
  display: block;
  padding: var(--space-2) 0;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.mobile-accordion-content a:hover {
  color: var(--color-brand);
}

.mobile-menu-cta {
  margin-top: var(--space-6);
}

/* ===== MEGA DROPDOWN ===== */

.nav-mega-dropdown {
  position: static;
}

.nav-mega-menu {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--color-surface-solid);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.08);
  padding: var(--space-6) var(--space-8);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-fast), visibility var(--duration-fast);
}

.nav-mega-dropdown.is-open .nav-mega-menu {
  opacity: 1;
  visibility: visible;
}

.nav-mega-grid {
  max-width: var(--container-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.nav-mega-group-title {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-brand);
  margin-bottom: var(--space-3);
}

.nav-mega-group-items {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.nav-mega-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--color-text);
  transition: background-color var(--duration-fast), color var(--duration-fast);
}

.nav-mega-item:hover {
  background: var(--color-brand-a6);
  color: var(--color-brand);
}

.nav-mega-item-icon {
  width: 16px;
  height: 16px;
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.nav-mega-item:hover .nav-mega-item-icon {
  color: var(--color-brand);
}