/* === HEADER === */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  background-color: transparent;
  transition: all var(--transition-base);
}

.header--scrolled {
  background-color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.header--scrolled .header__logo-text,
.header--scrolled .nav__link,
.header--scrolled .header__lang-btn {
  color: var(--color-gray-900);
}

.header__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-4);
  padding-bottom: var(--space-4);
  transition: padding var(--transition-base);
  flex-wrap: wrap;
  gap: var(--space-4);
}

.header--scrolled .header__container {
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
}

/* Logo */
.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.header__logo-img {
  height: 48px;
  width: auto;
}

.header--scrolled .header__logo-img {
  height: 40px;
}

.header__logo-text {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--color-white);
  transition: color var(--transition-base);
}

.header__logo-text span {
  color: var(--color-accent);
}

/* Navigation */
.nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  flex: 1 1 320px;
  justify-content: center;
}

.nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  flex-wrap: wrap;
  justify-content: center;
  row-gap: var(--space-2);
}

.nav__link {
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  color: var(--color-white);
  padding: var(--space-2) 0;
  position: relative;
  transition: color var(--transition-base);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: width var(--transition-base);
}

.nav__link:hover::after,
.nav__link--active::after {
  width: 100%;
}

.nav__link:hover {
  color: var(--color-accent);
}

.header--scrolled .nav__link:hover {
  color: var(--color-primary);
}

/* Header Actions */
.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-shrink: 0;
}

/* Language-specific tweaks */
html[lang="ru"] .nav__list {
  gap: var(--space-4);
}

html[lang="ru"] .nav__link {
  font-size: clamp(0.9rem, 1vw, 0.95rem);
}

html[lang="ru"] .header__actions .btn {
  font-size: 0.9rem;
  padding: 0.6rem 1.2rem;
}

  right: 0;
  min-width: 160px;
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-base);
  margin-top: var(--space-2);
  overflow: hidden;
}

.header__lang:hover .header__lang-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.header__lang-option {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-gray-700);
  transition: background-color var(--transition-fast);
}

.header__lang-option:hover {
  background-color: var(--color-gray-100);
}

.header__lang-option--active {
  background-color: var(--color-cream);
  color: var(--color-primary);
  font-weight: var(--font-medium);
}

/* Mobile Menu Button */
.header__mobile-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  position: relative;
  z-index: 10001;
}

.header__mobile-btn span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-white);
  transition: all var(--transition-base);
  border-radius: 2px;
}

.header--scrolled .header__mobile-btn span {
  background-color: var(--color-gray-900);
}

.header__mobile-btn.is-active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.header__mobile-btn.is-active span:nth-child(2) {
  opacity: 0;
}

.header__mobile-btn.is-active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
.nav--mobile {
  display: none;
  position: fixed;
  top: 0;
  right: -100%;
  width: 80%;
  max-width: 320px;
  height: 100vh;
  background-color: var(--color-white);
  box-shadow: var(--shadow-xl);
  padding: var(--space-20) var(--space-6) var(--space-8);
  transition: right var(--transition-base);
  z-index: 10000;
  overflow-y: auto;
}

.nav--mobile.is-active {
  right: 0;
}

.nav--mobile .nav__list {
  flex-direction: column;
  align-items: flex-start;
  gap: 0;
  margin-top: var(--space-8);
  margin-bottom: var(--space-6);
}

.nav--mobile .nav__item {
  width: 100%;
  border-bottom: 1px solid var(--color-gray-200);
}

.nav--mobile .nav__link {
  display: block;
  color: var(--color-gray-900);
  font-size: var(--text-lg);
  padding: var(--space-4) 0;
  width: 100%;
}

.nav--mobile .nav__link::after {
  display: none;
}

.nav--mobile .nav__link:hover {
  color: var(--color-primary);
}

.nav__close-btn {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-2xl);
  color: var(--color-gray-600);
  transition: color var(--transition-fast);
}

.nav__close-btn:hover {
  color: var(--color-gray-900);
}

/* Mobile Language */
.nav--mobile .mobile-lang {
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-gray-200);
}

.nav--mobile .mobile-lang__title {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-3);
}

.nav--mobile .mobile-lang__list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.nav--mobile .mobile-lang__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-gray-700);
  border: 1px solid var(--color-gray-200);
  transition: all var(--transition-fast);
}

.nav--mobile .mobile-lang__item:hover,
.nav--mobile .mobile-lang__item--active {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background-color: var(--color-cream);
}

/* Overlay */
.nav-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 9999;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.nav-overlay.is-active {
  display: block;
  opacity: 1;
}

/* === LANGUAGE SWITCHER === */
.header__lang-dropdown {
  position: relative;
  margin-right: 1rem;
}

.header__lang-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 8px;
  color: var(--color-white);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-base);
}

.header--scrolled .header__lang-btn {
  color: var(--color-gray-900);
  border-color: var(--color-gray-300);
  background: var(--color-white);
}

.header__lang-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
}

.header--scrolled .header__lang-btn:hover {
  background: var(--color-gray-50);
  border-color: var(--color-primary);
}

.header__lang-menu {
  position: absolute;
  top: calc(100% + 0.5rem);
  right: 0;
  min-width: 180px;
  background: var(--color-white);
  border-radius: 8px;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-base);
  overflow: hidden;
  z-index: 100;
}

.header__lang-dropdown:hover .header__lang-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.header__lang-option {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  color: var(--color-gray-700);
  text-decoration: none;
  transition: all var(--transition-base);
  border-bottom: 1px solid var(--color-gray-100);
}

.header__lang-option:last-child {
  border-bottom: none;
}

.header__lang-option:hover {
  background: var(--color-gray-50);
  color: var(--color-primary);
}

.header__lang-option.active {
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: 600;
}

.flag-icon {
  display: none; /* Flag icon CSS library kullanmıyoruz */
}

.lang-flag-emoji {
  font-size: 1.25rem;
  line-height: 1;
  display: inline-block;
}

.header__lang-btn .lang-flag-emoji {
  font-size: 1rem;
}

.lang-name {
  flex: 1;
}

/* Mobile Language Switcher */
.mobile-lang {
  padding: var(--space-6) var(--space-5);
  border-top: 1px solid var(--color-gray-200);
  margin-top: var(--space-4);
}

.mobile-lang__title {
  font-weight: 600;
  color: var(--color-gray-900);
  margin-bottom: var(--space-3);
}

.mobile-lang__options {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.mobile-lang__options .header__lang-option {
  border-radius: 8px;
  border: 1px solid var(--color-gray-200);
}

/* === RTL Support === */
[dir="rtl"] .header__logo {
  flex-direction: row-reverse;
}

[dir="rtl"] .nav__list {
  flex-direction: row-reverse;
}

[dir="rtl"] .header__actions {
  flex-direction: row-reverse;
}

[dir="rtl"] .nav__link::after {
  left: auto;
  right: 0;
}

[dir="rtl"] .header__lang-dropdown {
  left: auto;
  right: 0;
}

[dir="rtl"] .mobile-nav__close {
  left: var(--space-5);
  right: auto;
}

[dir="rtl"] .mobile-nav__list {
  text-align: right;
}

[dir="rtl"] .mobile-lang__options {
  align-items: flex-end;
}