/* ==========================================================================
   Header & Navigation
   ========================================================================== */

.dm-header {
  position: sticky;
  top: 0;
  z-index: var(--dm-z-sticky);
  background-color: var(--dm-nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: background-color var(--dm-transition-theme),
              border-color var(--dm-transition-fast);
}

.dm-header--scrolled {
  border-bottom-color: var(--dm-border);
  box-shadow: var(--dm-shadow-sm);
}

.dm-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

/* Logo */
.dm-header__logo {
  display: flex;
  align-items: center;
  gap: var(--dm-space-2);
  text-decoration: none;
  color: var(--dm-text-primary);
  font-size: var(--dm-text-xl);
  font-weight: var(--dm-font-extrabold);
  letter-spacing: -0.02em;
  transition: color var(--dm-transition-theme);
}

.dm-header__logo-img {
  height: 36px;
  width: auto;
  max-width: 160px;
  display: block;
}

.dm-header__logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--dm-primary), var(--dm-primary-dark));
  border-radius: var(--dm-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
}

.dm-header__logo-icon svg {
  width: 20px;
  height: 20px;
}

/* Desktop Nav */
.dm-header__nav {
  display: none;
}

@media (min-width: 1024px) {
  .dm-header__nav {
    display: flex;
    align-items: center;
  }
}

.dm-header__menu {
  display: flex;
  align-items: center;
  gap: var(--dm-space-1);
  list-style: none;
  padding: 0;
  margin: 0;
}

.dm-header__menu a {
  display: block;
  padding: var(--dm-space-2) var(--dm-space-3);
  font-size: var(--dm-text-sm);
  font-weight: var(--dm-font-medium);
  color: var(--dm-text-secondary);
  text-decoration: none;
  border-radius: var(--dm-radius-md);
  transition: color var(--dm-transition-fast),
              background-color var(--dm-transition-fast);
}

.dm-header__menu a:hover,
.dm-header__menu .current-menu-item a,
.dm-header__menu .current_page_item a {
  color: var(--dm-text-primary);
  background-color: var(--dm-bg-tertiary);
}

/* Header Actions */
.dm-header__actions {
  display: flex;
  align-items: center;
  gap: var(--dm-space-2);
}

/* Theme Toggle */
.dm-theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  background: none;
  border: 1px solid var(--dm-border);
  border-radius: var(--dm-radius-md);
  color: var(--dm-text-secondary);
  cursor: pointer;
  transition: color var(--dm-transition-fast),
              border-color var(--dm-transition-fast),
              background-color var(--dm-transition-fast);
}

.dm-theme-toggle:hover {
  color: var(--dm-text-primary);
  border-color: var(--dm-text-tertiary);
  background-color: var(--dm-bg-tertiary);
}

.dm-theme-toggle {
  position: relative;
}

.dm-theme-toggle svg {
  width: 20px;
  height: 20px;
}

.dm-theme-toggle__sun,
.dm-theme-toggle__moon {
  position: absolute;
  transition: opacity 0.4s cubic-bezier(0.34, 1.56, 0.64, 1),
              transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.dm-theme-toggle__sun {
  opacity: 0;
  transform: rotate(-90deg) scale(0);
}

.dm-theme-toggle__moon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

[data-theme="dark"] .dm-theme-toggle__sun {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

[data-theme="dark"] .dm-theme-toggle__moon {
  opacity: 0;
  transform: rotate(90deg) scale(0);
}

@media (prefers-reduced-motion: reduce) {
  .dm-theme-toggle__sun,
  .dm-theme-toggle__moon {
    transition: none;
  }
}

/* CTA in header */
.dm-header__cta {
  display: none;
}

@media (min-width: 1024px) {
  .dm-header__cta {
    display: inline-flex;
  }
}

/* Mobile Nav Toggle */
.dm-nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  background: none;
  border: none;
  color: var(--dm-text-primary);
  cursor: pointer;
  transition: color var(--dm-transition-fast);
}

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

.dm-nav-toggle svg {
  width: 24px;
  height: 24px;
}

.dm-nav-toggle__close {
  display: none;
}

.dm-nav-toggle[aria-expanded="true"] .dm-nav-toggle__open {
  display: none;
}

.dm-nav-toggle[aria-expanded="true"] .dm-nav-toggle__close {
  display: block;
}

/* Mobile Menu */
.dm-mobile-menu {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: var(--dm-z-overlay);
  background-color: var(--dm-bg-primary);
  padding: var(--dm-space-6) var(--dm-space-4);
  overflow-y: auto;
  transition: background-color var(--dm-transition-theme);
}

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

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

.dm-mobile-menu__list {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--dm-space-6) 0;
}

.dm-mobile-menu__list a {
  display: block;
  padding: var(--dm-space-3) var(--dm-space-4);
  font-size: var(--dm-text-lg);
  font-weight: var(--dm-font-medium);
  color: var(--dm-text-primary);
  border-radius: var(--dm-radius-md);
  transition: background-color var(--dm-transition-fast);
}

.dm-mobile-menu__list a:hover {
  background-color: var(--dm-bg-secondary);
}

.dm-mobile-menu__cta {
  width: 100%;
  text-align: center;
}

.dm-mobile-menu__lang {
  display: flex;
  justify-content: center;
  gap: var(--dm-space-2);
  margin-top: var(--dm-space-4);
}

/* ---------- Language Switcher ---------- */
.dm-lang-switcher {
  position: relative;
  display: none;
}

@media (min-width: 1024px) {
  .dm-lang-switcher {
    display: block;
  }
}

.dm-lang-switcher__toggle {
  display: flex;
  align-items: center;
  gap: var(--dm-space-1);
  padding: var(--dm-space-2) var(--dm-space-2);
  background: none;
  border: 1px solid var(--dm-border);
  border-radius: var(--dm-radius-md);
  color: var(--dm-text-secondary);
  font-family: var(--dm-font-body);
  font-size: var(--dm-text-sm);
  font-weight: var(--dm-font-medium);
  cursor: pointer;
  transition: color var(--dm-transition-fast),
              border-color var(--dm-transition-fast),
              background-color var(--dm-transition-fast);
}

.dm-lang-switcher__toggle:hover {
  color: var(--dm-text-primary);
  border-color: var(--dm-text-tertiary);
  background-color: var(--dm-bg-tertiary);
}

.dm-lang-switcher__chevron {
  transition: transform var(--dm-transition-fast);
}

.dm-lang-switcher.is-open .dm-lang-switcher__chevron {
  transform: rotate(180deg);
}

.dm-lang-switcher__menu {
  display: none;
  position: absolute;
  top: calc(100% + var(--dm-space-2));
  right: 0;
  min-width: 160px;
  background-color: var(--dm-surface);
  border: 1px solid var(--dm-border);
  border-radius: var(--dm-radius-lg);
  box-shadow: var(--dm-shadow-lg);
  padding: var(--dm-space-1);
  list-style: none;
  margin: 0;
  z-index: var(--dm-z-dropdown);
  transition: background-color var(--dm-transition-theme),
              border-color var(--dm-transition-theme);
}

.dm-lang-switcher.is-open .dm-lang-switcher__menu {
  display: block;
}

.dm-lang-switcher__option {
  display: flex;
  align-items: center;
  gap: var(--dm-space-3);
  padding: var(--dm-space-2) var(--dm-space-3);
  font-size: var(--dm-text-sm);
  font-weight: var(--dm-font-medium);
  color: var(--dm-text-secondary);
  text-decoration: none;
  border-radius: var(--dm-radius-md);
  transition: background-color var(--dm-transition-fast),
              color var(--dm-transition-fast);
}

.dm-lang-switcher__option:hover {
  background-color: var(--dm-bg-tertiary);
  color: var(--dm-text-primary);
}

.dm-lang-switcher__option.is-active {
  color: var(--dm-primary);
  background-color: var(--dm-primary-50);
}

[data-theme="dark"] .dm-lang-switcher__option.is-active {
  background-color: rgba(37, 128, 187, 0.15);
}

.dm-lang-switcher__name {
  color: var(--dm-text-tertiary);
  font-weight: var(--dm-font-normal);
}