/**
 * Business Dashboard 页面样式
 * 遵循 ui-style-rules.md 规范
 */

/* ========== 页面头部 ========== */
.business-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--spacing-6);
  padding-bottom: var(--spacing-6);
  border-bottom: 1px solid var(--color-border-secondary);
}

.business-header__info {
  flex: 1;
}

.business-header__title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin: 0 0 var(--spacing-2) 0;
}

.business-header__subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin: 0;
}

.business-header__actions {
  display: flex;
  gap: var(--spacing-3);
}

.business-header__btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-3) var(--spacing-5);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.business-header__btn--primary {
  color: var(--color-text-on-primary);
  background: var(--color-primary);
  border: none;
}

.business-header__btn--primary:hover {
  background: var(--color-primary-hover);
}

.business-header__btn-icon {
  font-size: var(--font-size-base);
}

/* ========== 账户概览 ========== */
.business-overview {
  margin-bottom: var(--spacing-6);
}

.business-overview__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-4);
}

.overview-card {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
  padding: var(--spacing-5);
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-lg);
  transition: box-shadow var(--transition-normal);
}

.overview-card:hover {
  box-shadow: var(--shadow-md);
}

.overview-card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  border-radius: var(--radius-lg);
  flex-shrink: 0;
}

.overview-card__icon--balance {
  background: var(--color-success-bg);
}

.overview-card__icon--spend {
  background: var(--color-warning-bg);
}

.overview-card__icon--active {
  background: var(--color-primary-bg);
}

.overview-card__icon--impressions {
  background: var(--color-info-bg);
}

.overview-card__content {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-1);
}

.overview-card__label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.overview-card__value {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
}

.overview-card__action {
  font-size: var(--font-size-sm);
  color: var(--color-primary);
  text-decoration: none;
  white-space: nowrap;
}

.overview-card__action:hover {
  text-decoration: underline;
}

.overview-card__trend {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  white-space: nowrap;
}

.overview-card__trend--up {
  color: var(--color-success);
}

.overview-card__trend--down {
  color: var(--color-error);
}

/* ========== 数据趋势 ========== */
.business-trends {
  margin-bottom: var(--spacing-6);
  padding: var(--spacing-5);
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-lg);
}

.business-trends__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-4);
}

.business-trends__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin: 0;
}

.business-trends__select {
  padding: var(--spacing-2) var(--spacing-3);
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-md);
  cursor: pointer;
}

.business-trends__select:focus {
  outline: none;
  border-color: var(--color-primary);
}

.business-trends__chart {
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.business-trends__placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-2);
  color: var(--color-text-tertiary);
}

.business-trends__placeholder-icon {
  font-size: 48px;
}

.business-trends__placeholder-text {
  font-size: var(--font-size-sm);
}

/* 趋势图表 */
.trends-chart-container {
  width: 100%;
}

.trends-chart-bars {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 150px;
  padding: var(--spacing-4) 0;
}

.trends-bar {
  flex: 1;
  min-width: 8px;
  background: var(--color-primary);
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  position: relative;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.trends-bar:hover {
  background: var(--color-primary-hover);
}

.trends-bar__tooltip {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  padding: var(--spacing-1) var(--spacing-2);
  font-size: var(--font-size-xs);
  color: var(--color-text-on-primary);
  background: var(--color-bg-inverse);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast);
}

.trends-bar:hover .trends-bar__tooltip {
  opacity: 1;
  visibility: visible;
}

.trends-chart-summary {
  display: flex;
  justify-content: center;
  gap: var(--spacing-8);
  padding-top: var(--spacing-4);
  border-top: 1px solid var(--color-border-secondary);
}

.trends-summary-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-1);
}

.trends-summary-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.trends-summary-value {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

/* ========== 广告列表 ========== */
.business-campaigns {
  margin-bottom: var(--spacing-6);
}

.business-campaigns__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-4);
}

.business-campaigns__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin: 0;
}

.business-campaigns__link {
  font-size: var(--font-size-sm);
  color: var(--color-primary);
  text-decoration: none;
}

.business-campaigns__link:hover {
  text-decoration: underline;
}

.business-campaigns__list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
}

/* 广告卡片 */
.campaign-card {
  display: block;
  padding: var(--spacing-4);
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.campaign-card:hover {
  border-color: var(--color-border-hover);
  box-shadow: var(--shadow-md);
}

.campaign-card__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-3);
}

.campaign-card__title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin: 0;
}

.campaign-card__status {
  padding: var(--spacing-1) var(--spacing-2);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-full);
}

.campaign-card__status--active {
  color: var(--color-success);
  background: var(--color-success-bg);
}

.campaign-card__status--paused {
  color: var(--color-warning);
  background: var(--color-warning-bg);
}

.campaign-card__status--pending {
  color: var(--color-info);
  background: var(--color-info-bg);
}

.campaign-card__status--rejected {
  color: var(--color-error);
  background: var(--color-error-bg);
}

.campaign-card__status--completed {
  color: var(--color-text-secondary);
  background: var(--color-bg-tertiary);
}

.campaign-card__stats {
  display: flex;
  gap: var(--spacing-6);
  margin-bottom: var(--spacing-3);
}

.campaign-card__stat {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-1);
}

.campaign-card__stat-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

.campaign-card__stat-value {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

.campaign-card__footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--spacing-3);
  border-top: 1px solid var(--color-border-secondary);
}

.campaign-card__date {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
}

.campaign-card__budget {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* 骨架屏 */
.campaign-card--skeleton {
  pointer-events: none;
}

.campaign-card--skeleton .campaign-card__title,
.campaign-card--skeleton .campaign-card__status,
.campaign-card--skeleton .campaign-card__stat {
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-sm);
  animation: skeleton-pulse 1.5s ease-in-out infinite;
}

.campaign-card--skeleton .campaign-card__title {
  width: 60%;
  height: 20px;
}

.campaign-card--skeleton .campaign-card__status {
  width: 60px;
  height: 24px;
}

.campaign-card--skeleton .campaign-card__stat {
  width: 80px;
  height: 40px;
}

@keyframes skeleton-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* 空态 */
.business-campaigns__empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-12) var(--spacing-4);
  text-align: center;
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
}

.business-campaigns__empty-icon {
  font-size: 64px;
  margin-bottom: var(--spacing-4);
}

.business-campaigns__empty-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin: 0 0 var(--spacing-2) 0;
}

.business-campaigns__empty-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin: 0 0 var(--spacing-6) 0;
}

.business-campaigns__empty-btn {
  display: inline-flex;
  padding: var(--spacing-3) var(--spacing-6);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-on-primary);
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.business-campaigns__empty-btn:hover {
  background: var(--color-primary-hover);
}

/* 错误态 */
.business-campaigns__error {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-12) var(--spacing-4);
  text-align: center;
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
}

.business-campaigns__error-icon {
  font-size: 64px;
  color: var(--color-error);
  margin-bottom: var(--spacing-4);
}

.business-campaigns__error-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin: 0 0 var(--spacing-2) 0;
}

.business-campaigns__error-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin: 0 0 var(--spacing-6) 0;
}

.business-campaigns__error-btn {
  padding: var(--spacing-3) var(--spacing-6);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-on-primary);
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.business-campaigns__error-btn:hover {
  background: var(--color-primary-hover);
}

/* ========== 快捷操作 ========== */
.business-quick {
  margin-bottom: var(--spacing-6);
}

.business-quick__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin: 0 0 var(--spacing-4) 0;
}

.business-quick__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-4);
}

.quick-action {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-3);
  padding: var(--spacing-5);
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: all var(--transition-normal);
}

.quick-action:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.quick-action__icon {
  font-size: 32px;
}

.quick-action__label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .business-overview__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .business-quick__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .business-header {
    flex-direction: column;
    gap: var(--spacing-4);
  }

  .business-header__actions {
    width: 100%;
  }

  .business-header__btn {
    flex: 1;
    justify-content: center;
  }

  .business-overview__grid {
    grid-template-columns: 1fr;
  }

  .overview-card {
    padding: var(--spacing-4);
  }

  .campaign-card__stats {
    flex-wrap: wrap;
    gap: var(--spacing-4);
  }

  .trends-chart-summary {
    flex-wrap: wrap;
    gap: var(--spacing-4);
  }

  .business-quick__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ========== 无权限状态 ========== */
.business-access-denied {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  text-align: center;
  padding: var(--spacing-8);
}

.business-access-denied__icon {
  font-size: 80px;
  margin-bottom: var(--spacing-6);
}

.business-access-denied__title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin: 0 0 var(--spacing-3) 0;
}

.business-access-denied__desc {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  margin: 0 0 var(--spacing-6) 0;
  max-width: 400px;
}

.business-access-denied__hint {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
  margin: 0;
}

.business-access-denied__btn {
  display: inline-flex;
  padding: var(--spacing-3) var(--spacing-8);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-on-primary);
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.business-access-denied__btn:hover {
  background: var(--color-primary-hover);
}

/* ========== 辅助类 ========== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}