// 全局变量定义
$primary-color: #165DFF;
$primary-dark: #0E42CB;
$secondary-color: #4E5BA6;
$success-color: #00B42A;
$warning-color: #FF7D00;
$danger-color: #F53F3F;
$text-primary: #1D2129;
$text-secondary: #4E5969;
$text-tertiary: #86909C;
$border-color: #E5E6EB;
$background-primary: #FFFFFF;
$background-secondary: #F2F3F5;
$background-tertiary: #F7F8FA;
$shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
$shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
$shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.1);
$border-radius: 8px;
$transition: all 0.3s ease;

// 欢迎区域
.welcome-section {
  margin-bottom: 24px;

  h2 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 8px;
    color: $text-primary;
  }

  p {
    font-size: 14px;
    color: $text-secondary;
  }
}

// 数据看板
.stats-dashboard {
  margin-bottom: 24px;

  .stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
  }

  .stat-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background-color: $background-primary;
    border-radius: $border-radius;
    box-shadow: $shadow-sm;
    transition: $transition;

    &:hover {
      box-shadow: $shadow-md;
      transform: translateY(-2px);
    }

    .stat-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: white;

      &.primary {
        background-color: $primary-color;
      }

      &.secondary {
        background-color: $secondary-color;
      }

      &.warning {
        background-color: $warning-color;
      }

      &.success {
        background-color: $success-color;
      }
    }

    .stat-content {
      flex: 1;

      .stat-value {
        font-size: 28px;
        font-weight: 600;
        color: $text-primary;
        margin-bottom: 4px;
      }

      .stat-label {
        font-size: 14px;
        color: $text-secondary;
      }
    }

    .stat-trend {
      padding: 4px 10px;
      border-radius: 12px;
      font-size: 12px;
      font-weight: 500;

      &.positive {
        background-color: color-mix(in srgb, $success-color 10%, transparent);
        color: $success-color;
      }

      &.negative {
        background-color: color-mix(in srgb, $danger-color 10%, transparent);
        color: $danger-color;
      }

      &.neutral {
        background-color: color-mix(in srgb, $text-tertiary 10%, transparent);
        color: $text-tertiary;
      }
    }
  }
}

// 内容网格
.content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}

// 通用区块头部
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;

  h3 {
    font-size: 18px;
    font-weight: 600;
    color: $text-primary;
  }

  .view-all-link {
    color: $primary-color;
    text-decoration: none;
    font-size: 14px;
    transition: $transition;

    &:hover {
      text-decoration: underline;
    }
  }

  .search-box {
    max-width: 200px;

    .search-input {
      width: 100%;
      padding: 6px 12px;
      border: 1px solid $border-color;
      border-radius: $border-radius;
      font-size: 14px;
      background-color: $background-primary;
      color: $text-primary;

      &::placeholder {
        color: $text-tertiary;
      }

      &:focus {
        outline: none;
        border-color: $primary-color;
        box-shadow: 0 0 0 2px color-mix(in srgb, $primary-color 20%, transparent);
      }
    }
  }
}

// 紧急待办列表
.urgent-tasks-section {
  background-color: $background-primary;
  border-radius: $border-radius;
  padding: 24px;
  box-shadow: $shadow-sm;

  .tasks-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }

  .empty-state {
    text-align: center;
    padding: 40px 20px;
    color: $text-tertiary;

    svg {
      margin-bottom: 16px;
      opacity: 0.5;
    }

    p {
      font-size: 14px;
    }
  }

  .task-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
    border: 1px solid $border-color;
    border-radius: $border-radius;
    transition: $transition;

    &:hover {
      border-color: $primary-color;
      box-shadow: 0 2px 8px color-mix(in srgb, $primary-color 10%, transparent);
    }

    &.completed {
      opacity: 0.6;
      background-color: $background-tertiary;
    }

    &.overdue {
      border-color: $danger-color;
      background-color: color-mix(in srgb, $danger-color 5%, transparent);
    }

    .task-checkbox {
      margin-top: 2px;

      input[type="checkbox"] {
        width: 18px;
        height: 18px;
        cursor: pointer;
      }
    }

    .task-content {
      flex: 1;

      .task-title {
        font-size: 16px;
        font-weight: 500;
        color: $text-primary;
        margin-bottom: 4px;
      }

      .task-project {
        font-size: 13px;
        color: $text-secondary;
        margin-bottom: 8px;
      }

      .task-meta {
        display: flex;
        gap: 16px;
        font-size: 12px;
        color: $text-tertiary;
      }
    }

    .task-actions {
      display: flex;
      align-items: flex-start;
    }
  }
}

// 项目动态流
.project-updates-section {
  background-color: $background-primary;
  border-radius: $border-radius;
  padding: 24px;
  box-shadow: $shadow-sm;

  .updates-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
  }

  .empty-state {
    text-align: center;
    padding: 40px 20px;
    color: $text-tertiary;

    svg {
      margin-bottom: 16px;
      opacity: 0.5;
    }

    p {
      font-size: 14px;
    }
  }

  .update-item {
    display: flex;
    gap: 12px;
    padding: 16px;
    border: 1px solid $border-color;
    border-radius: $border-radius;
    transition: $transition;

    &:hover {
      border-color: $primary-color;
      box-shadow: 0 2px 8px color-mix(in srgb, $primary-color 10%, transparent);
    }

    .update-icon {
      width: 40px;
      height: 40px;
      border-radius: 10px;
      background-color: color-mix(in srgb, $primary-color 10%, transparent);
      display: flex;
      align-items: center;
      justify-content: center;
      color: $primary-color;
      flex-shrink: 0;
    }

    .update-content {
      flex: 1;

      .update-title {
        font-size: 15px;
        font-weight: 500;
        color: $text-primary;
        margin-bottom: 4px;
      }

      .update-text {
        font-size: 14px;
        color: $text-secondary;
        margin-bottom: 8px;
        line-height: 1.5;
      }

      .update-meta {
        display: flex;
        justify-content: space-between;
        align-items: center;

        .update-time {
          font-size: 12px;
          color: $text-tertiary;
        }

        .update-status {
          font-size: 12px;
          font-weight: 500;
          padding: 2px 8px;
          border-radius: 10px;

          &.completed {
            background-color: color-mix(in srgb, $success-color 10%, transparent);
            color: $success-color;
          }

          &.pending {
            background-color: color-mix(in srgb, $primary-color 10%, transparent);
            color: $primary-color;
          }

          &.exception {
            background-color: color-mix(in srgb, $danger-color 10%, transparent);
            color: $danger-color;
          }
        }
      }
    }
  }
}

// 按钮样式
.btn-primary {
  padding: 8px 16px;
  background-color: $primary-color;
  color: white;
  border: none;
  border-radius: $border-radius;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: $transition;

  &:hover {
    background-color: $primary-dark;
    transform: translateY(-1px);
    box-shadow: $shadow-md;
  }

  &:active {
    transform: translateY(0);
  }

  &:disabled {
    background-color: $text-tertiary;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
  }
}

// 回到顶部按钮
.back-to-top {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: #1976d2;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
  border: none;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background-color: #1565c0;
}

// 响应式设计
@media (max-width: 1024px) {
  .content-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 768px) {
  .welcome-section {
    margin-bottom: 16px;

    h2 {
      font-size: 20px;
    }
  }

  .stats-dashboard {
    margin-bottom: 16px;

    .stats-grid {
      grid-template-columns: 1fr;
      gap: 12px;
    }

    .stat-card {
      padding: 16px;

      .stat-icon {
        width: 40px;
        height: 40px;
      }

      .stat-value {
        font-size: 24px;
      }
    }
  }

  .content-grid {
    gap: 16px;
    margin-bottom: 16px;
  }

  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;

    h3 {
      font-size: 16px;
    }

    .search-box {
      max-width: 100%;
      width: 100%;
    }
  }

  .urgent-tasks-section,
  .project-updates-section {
    padding: 16px;
  }

  .task-item,
  .update-item {
    padding: 12px;
  }

  .back-to-top {
    bottom: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
  }
}

@media (max-width: 480px) {
  .task-item {
    flex-direction: column;
    align-items: flex-start;

    .task-actions {
      margin-top: 12px;
      align-self: flex-end;
    }
  }

  .update-item {
    .update-icon {
      width: 32px;
      height: 32px;
    }
  }
}