/**
 * 헤더 스타일 - 모던 디자인
 */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-sm);
  z-index: var(--z-fixed);
  display: flex;
  align-items: center;
  padding: 0 var(--spacing-xl);
  transition: var(--transition);
}

.header-left {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  flex: 1;
}

.header-logo {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  letter-spacing: -0.02em;
  transition: var(--transition);
}

.header-logo:hover {
  opacity: 0.9;
}

.header-search {
  flex: 1;
  max-width: 450px;
  position: relative;
}

.header-search input {
  width: 100%;
  padding: 0.625rem 1rem 0.625rem 2.75rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  background-color: var(--color-bg-gray);
  transition: var(--transition);
  outline: none;
}

.header-search input:hover {
  border-color: var(--color-border-dark);
  background-color: var(--color-bg-white);
}

.header-search input:focus {
  border-color: var(--color-border-focus);
  background-color: var(--color-bg-white);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.header-search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-sub);
  width: 18px;
  height: 18px;
  pointer-events: none;
}

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

.header-notification {
  position: relative;
  background: none;
  border: none;
  padding: 0.625rem;
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
  color: var(--color-text-sub);
  display: flex;
  align-items: center;
  justify-content: center;
}

.header-notification:hover {
  background-color: var(--color-bg-hover);
  color: var(--color-text);
}

.header-notification-badge {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  width: 8px;
  height: 8px;
  background-color: var(--color-error);
  border-radius: var(--radius-full);
  border: 2px solid var(--color-bg-white);
}

.header-user {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: var(--transition-fast);
  position: relative;
}

.header-user:hover {
  background-color: var(--color-bg-hover);
}

.header-user-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background-color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-white);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
}

.header-user-info {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

.header-user-name {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  line-height: 1.2;
}

.header-user-role {
  font-size: var(--font-size-xs);
  color: var(--color-text-sub);
  line-height: 1.2;
}

.header-dropdown {
  position: relative;
}

.header-dropdown-menu {
  position: absolute;
  top: calc(100% + var(--spacing-sm));
  right: 0;
  background-color: var(--color-bg-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  min-width: 220px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: var(--transition);
  z-index: var(--z-dropdown);
  overflow: hidden;
}

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

.header-dropdown-item {
  display: block;
  padding: 0.75rem 1rem;
  color: var(--color-text);
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-normal);
  transition: var(--transition-fast);
}

.header-dropdown-item:hover {
  background-color: var(--color-bg-hover);
  color: var(--color-primary);
}

.header-dropdown-divider {
  height: 1px;
  background-color: var(--color-border-light);
  margin: 0.5rem 0;
}

/* 모바일 메뉴 토글 */
.header-mobile-toggle {
  display: none;
  background: none;
  border: none;
  padding: 0.625rem;
  cursor: pointer;
  color: var(--color-text);
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}

.header-mobile-toggle:hover {
  background-color: var(--color-bg-hover);
}

/* 반응형 */
@media (max-width: 768px) {
  .header {
    padding: 0 var(--spacing-md);
  }
  
  .header-mobile-toggle {
    display: block;
  }
  
  .header-search {
    display: none;
  }
  
  .header-user-info {
    display: none;
  }
  
  .header-user-avatar {
    width: 32px;
    height: 32px;
    font-size: var(--font-size-xs);
  }
}