/* ============================================================
   HEADER & NAVIGATION
   ============================================================ */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-header);
  height: var(--header-height);
  background-color: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base);
}

.header.scrolled {
  border-bottom-color: var(--color-gray-200);
  box-shadow: var(--shadow-sm);
}

/* Give the container inside the header full height so inner flex centering works */
.header .container {
  height: 100%;
}

.header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

/* Logo */
.header__logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}

/* PNG icon (symbol/mark) */
.header__logo-icon {
  height: 75px;
  width: auto;
  display: block;
  object-fit: contain;
  flex-shrink: 0;
}

/* PNG wordmark / text logo */
.header__logo-text {
  height: 61px;
  width: auto;
  display: block;
  object-fit: contain;
}

@media (max-width: 480px) {
  .header__logo-icon { height: 54px; }
  .header__logo-text { height: 34px; }
}

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

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

.header__nav-link {
  padding: var(--space-2) var(--space-3);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-gray-700);
  border-radius: var(--radius-md);
  transition: color var(--transition-fast), background-color var(--transition-fast);
  white-space: nowrap;
}

.header__nav-link:hover {
  color: var(--color-green);
  background-color: var(--color-gray-100);
}

.header__nav-link.active {
  color: var(--color-green);
  font-weight: var(--font-weight-semibold);
}

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

/* Language switcher */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  background-color: var(--color-gray-100);
  border-radius: var(--radius-full);
  padding: var(--space-1);
}

.lang-btn {
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-gray-500);
  transition: all var(--transition-fast);
  letter-spacing: 0.03em;
}

.lang-btn:hover {
  color: var(--color-green);
}

.lang-btn.active {
  background-color: var(--color-green);
  color: var(--color-white);
}

/* Mobile menu toggle */
.header__menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast);
}

.header__menu-btn:hover {
  background-color: var(--color-gray-100);
}

.header__menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-green);
  border-radius: var(--radius-full);
  transition:
    transform var(--transition-base),
    opacity var(--transition-base);
}

.header__menu-btn.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.header__menu-btn.open span:nth-child(2) {
  opacity: 0;
}

.header__menu-btn.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile drawer */
.header__mobile-nav {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-gray-200);
  padding: var(--space-4) var(--space-6);
  box-shadow: var(--shadow-md);
  transform: translateY(-8px);
  opacity: 0;
  pointer-events: none;
  transition:
    transform var(--transition-base),
    opacity var(--transition-base);
  z-index: calc(var(--z-header) - 1);
}

.header__mobile-nav.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: all;
}

.header__mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin-bottom: var(--space-4);
}

.header__mobile-nav-link {
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-gray-700);
  border-radius: var(--radius-md);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.header__mobile-nav-link:hover {
  color: var(--color-green);
  background-color: var(--color-gray-100);
}

.header__mobile-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-gray-200);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 1024px) {
  .header__nav {
    display: none;
  }
}

@media (max-width: 768px) {
  .header__actions .btn {
    display: none;
  }

  .header__menu-btn {
    display: flex;
  }

  .header__mobile-nav {
    display: block;
  }
}