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/* Header Responsive Styles */
.header {
  background: white;
  border-bottom: 1px solid var(--color-secondary-200);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 4rem; /* 64px - consistent with h-16 */
  z-index: var(--z-50);
  backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, 0.95);
}

/* Mobile header behavior */
@media (max-width: 1023px) {
  .header {
    z-index: var(--z-50);
  }
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding-left: 1rem;
  padding-right: 1rem;
}

@media (min-width: 640px) {
  .header-content {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .header-content {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}

.header-logo {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary-600);
  text-decoration: none;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-6);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  padding: var(--spacing-2);
  background: none;
  border: none;
}

.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--color-secondary-700);
  margin: 2px 0;
  transition: all var(--transition-normal);
}

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

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* Mobile styles - using Tailwind's lg breakpoint (1024px) */
@media (max-width: 1023px) {
  .hamburger {
    display: flex;
  }
  
  .header-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: white;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-8);
    transform: translateX(-100%);
    transition: transform var(--transition-slow);
    z-index: var(--z-30);
  }
  
  .header-nav.active {
    transform: translateX(0);
  }
  
  .header-actions {
    display: none;
  }
}

/* Ensure proper z-index relationship with sidebar */
@media (max-width: 1023px) {
  .header {
    z-index: var(--z-40);
  }
  
  /* Sidebar should be above header on mobile */
  .sidebar {
    z-index: var(--z-50);
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .header {
    border: 2px solid currentColor;
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  .header {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  
  .hamburger span {
    transition-duration: 0.01ms !important;
  }
}