:root {
  /* Brand Colors */
  --color-primary: #E96B6B;
  --color-primary-light: #FFF3F2;
  --color-success: #2E9B68;
  --color-warning: #E59A32;
  --color-danger: #DC3545;
  --color-info: #17A2B8;

  /* Text Colors */
  --color-text-primary: #1A1A1A;
  --color-text-secondary: #666666;
  --color-text-tertiary: #999999;

  /* Background */
  --color-bg-primary: #FFFFFF;
  --color-bg-secondary: #F5F7FA;
  --color-bg-page: #F0F2F5;

  /* Border */
  --color-border: #E4E7ED;
  --color-border-light: #EBEEF5;

  /* Layout */
  --sidebar-width: 220px;
  --header-height: 60px;
  --border-radius: 6px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body, #app {
  width: 100%;
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB',
    'Microsoft YaHei', sans-serif;
  font-size: 14px;
  color: var(--color-text-primary);
  background-color: var(--color-bg-page);
}

/* Override Element Plus primary color */
.el-button--primary {
  --el-button-bg-color: #E96B6B;
  --el-button-border-color: #E96B6B;
  --el-button-hover-bg-color: #d45a5a;
  --el-button-hover-border-color: #d45a5a;
}

.el-radio-group .el-radio-button__inner:checked {
  background-color: #E96B6B;
  border-color: #E96B6B;
}

/* Common utility */
.page-container {
  padding: 20px;
}

.text-primary { color: var(--color-text-primary); }
.text-secondary { color: var(--color-text-secondary); }
.text-tertiary { color: var(--color-text-tertiary); }

.mt-sm { margin-top: 8px; }
.mt-md { margin-top: 16px; }
.mt-lg { margin-top: 24px; }

.mb-sm { margin-bottom: 8px; }
.mb-md { margin-bottom: 16px; }
.mb-lg { margin-bottom: 24px; }

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}