/* ============================================================================
   Header Styles
   ============================================================================ */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  background-color: var(--color-background);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-md) 0;
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header__wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: var(--spacing-xl);
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
  padding: var(--spacing-sm);
  border-radius: var(--radius-lg);
  transition: background-color var(--transition-base);
}

.logo:hover {
  background-color: var(--color-muted);
}

.logo:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.logo__img {
  width: 32px;
  height: 32px;
}

.logo__text {
  font-family: var(--font-display);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-foreground);
}

.logo__dot {
  color: var(--color-primary);
}

/* Navigation */
.nav {
  display: none;
}

@media (min-width: 1024px) {
  .nav {
    display: block;
    flex: 1;
  }
}

.nav__list {
  display: flex;
  gap: var(--spacing-xl);
  list-style: none;
}

.nav__item {
  position: relative;
}

.nav__link {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--color-foreground);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

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

.nav__link:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Header CTA */
.header__cta {
  display: none;
}

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

/* Mobile Menu Toggle */
.menu-toggle {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-base);
}

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

.menu-toggle:hover {
  background-color: var(--color-muted);
}

.menu-toggle:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.menu-toggle__line {
  width: 24px;
  height: 2px;
  background-color: var(--color-foreground);
  border-radius: 1px;
  transition: all var(--transition-base);
}

.menu-toggle[aria-expanded="true"] .menu-toggle__line:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}

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

.menu-toggle[aria-expanded="true"] .menu-toggle__line:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--color-background);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-lg);
  animation: slideInDown 0.3s ease-out;
}

.mobile-menu.active {
  display: block;
}

@media (min-width: 768px) {
  .mobile-menu {
    display: none !important;
  }
}

.mobile-menu__list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  list-style: none;
}

.mobile-menu__item {
  width: 100%;
}

.mobile-menu__link {
  display: block;
  padding: var(--spacing-md);
  color: var(--color-foreground);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: background-color var(--transition-base);
}

.mobile-menu__link:hover {
  background-color: var(--color-muted);
}

.mobile-menu__link:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.mobile-menu__cta {
  width: 100%;
}

/* Sticky Header Padding */
main {
  margin-top: 64px;
}

@media (min-width: 768px) {
  main {
    margin-top: 64px;
  }
}