/* Header Component */

.header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-gray-200);
  box-shadow: var(--shadow-sm);
  height: var(--header-height);
  display: flex;
  align-items: center;
}

.header__content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  height: 100%;
}

/* Logo */
.header__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.header__logo img {
  height: 40px;
  width: auto;
}

/* Navigation */
.header__nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

.nav__list {
  display: flex;
  gap: var(--spacing-lg);
  align-items: center;
}

.nav__link {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-gray-700);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  position: relative;
}

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

.nav__link--active {
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
}

.nav__link--active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: var(--spacing-md);
  right: var(--spacing-md);
  height: 2px;
  background-color: var(--color-primary);
}

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

/* Mobile Toggle */
.header__toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 24px;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
  z-index: calc(var(--z-sticky) + 1);
}

.toggle__line {
  display: block;
  width: 100%;
  height: 3px;
  background-color: var(--color-gray-700);
  border-radius: 2px;
  transition: all var(--transition-base);
  transform-origin: center;
}

.header__toggle[aria-expanded="true"] .toggle__line:nth-child(1) {
  transform: translateY(10.5px) rotate(45deg);
}

.header__toggle[aria-expanded="true"] .toggle__line:nth-child(2) {
  opacity: 0;
}

.header__toggle[aria-expanded="true"] .toggle__line:nth-child(3) {
  transform: translateY(-10.5px) rotate(-45deg);
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .nav__list {
    gap: var(--spacing-md);
  }

  .nav__link {
    font-size: var(--font-size-sm);
    padding: var(--spacing-sm);
  }
}

@media (max-width: 768px) {
  .header {
    height: 70px;
  }

  .header__logo img {
    height: 35px;
  }

  .header__toggle {
    display: flex;
  }

  .header__nav {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    border-top: 1px solid var(--color-gray-200);
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    max-height: calc(100vh - 70px);
    overflow-y: auto;
  }

  .header__nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav__list {
    flex-direction: column;
    padding: var(--spacing-lg) 0;
    gap: 0;
    width: 100%;
  }

  .nav__item {
    width: 100%;
  }

  .nav__link {
    display: block;
    width: 100%;
    padding: var(--spacing-md) var(--container-padding);
    border-radius: 0;
    font-size: var(--font-size-md);
  }

  .nav__link--active::after {
    display: none;
  }

  .nav__link--active {
    background-color: var(--color-gray-50);
  }

  .header__actions {
    display: none;
  }
}