/**
 * 레이아웃 스타일
 */

.app-container {
  display: flex;
  min-height: 100vh;
  padding-top: 0;
}

.app-main {
  flex: 1;
  width: calc(100% - 280px);
  margin-left: var(--sidebar-width);
  transition: var(--transition);
  padding: var(--spacing-xl);
  background-color: var(--color-bg-secondary);
  min-height: 100vh;
}

.page-header-with-actions {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: var(--spacing-xl);
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.page-header-left {
  flex: 1;
  min-width: 0;
}

.page-header-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex-shrink: 0;
}

.btn-icon {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background-color: var(--color-bg-white);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-icon:hover {
  background-color: var(--color-bg-hover);
  border-color: var(--color-border-dark);
}

.btn-icon svg {
  width: 20px;
  height: 20px;
}

.notification-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 8px;
  height: 8px;
  background-color: var(--color-error);
  border-radius: 50%;
  display: none;
  color: #fff;
}

.notification-badge.has-notification {
  display: block;
}

.page-header {
  margin-bottom: var(--spacing-xl);
}

.page-title {
  font-size: var(--font-size-3xl);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
  margin-top: 0;
  letter-spacing: -0.025em;
  line-height: 1.2;
}

.page-description {
  color: var(--color-text-sub);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  margin-bottom: 0;
}

.page-content {
  background-color: var(--color-bg-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  padding: var(--spacing-xl);
  border: 1px solid var(--color-border);
}

.page-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-sm);
  color: var(--color-text-sub);
}

.breadcrumb-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.breadcrumb-item:not(:last-child)::after {
  content: '/';
  color: var(--color-text-light);
}

.breadcrumb-link {
  color: var(--color-text-sub);
  transition: var(--transition);
}

.breadcrumb-link:hover {
  color: var(--color-primary);
}

.breadcrumb-current {
  color: var(--color-text);
  font-weight: 500;
}

/* 모바일 메뉴 토글 버튼 */
.mobile-menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background-color: var(--color-bg-white);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  cursor: pointer;
  transition: var(--transition);
  margin-right: var(--spacing-md);
  flex-shrink: 0;
}

.mobile-menu-toggle:hover {
  background-color: var(--color-bg-hover);
  border-color: var(--color-border-dark);
}

.mobile-menu-toggle svg {
  width: 24px;
  height: 24px;
}

/* 모바일 사이드바 오버레이 */
.mobile-sidebar-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: calc(var(--z-sticky) - 1);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.mobile-sidebar-overlay.active {
  display: block;
  opacity: 1;
  pointer-events: all;
}

/* 반응형 */
@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: flex;
  }
  
  .app-main {
    margin-left: 0;
    padding: var(--spacing-md);
  }
  
  .page-content {
    padding: var(--spacing-md);
  }
  
  .page-actions {
    flex-direction: column;
    align-items: stretch;
  }
  
  .page-actions > * {
    width: 100%;
  }
  
  .page-header-with-actions {
    flex-wrap: nowrap;
  }
  
  .page-header-left {
    display: flex;
    align-items: center;
    min-width: 0;
  }
  
  .page-title {
    font-size: var(--font-size-xl);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  
  .page-description {
    display: none;
  }
  
  .page-header-actions {
    flex-shrink: 0;
  }
  
  .btn-icon {
    width: 36px;
    height: 36px;
  }
  
  .btn-icon svg {
    width: 18px;
    height: 18px;
  }
}