/* roulang page: index */
:root {
      --primary: #10b981;
      --primary-dark: #059669;
      --slate-bg: #f8fafc;
      --border-color: #e2e8f0;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
      text-rendering: optimizeLegibility;
      -webkit-font-smoothing: antialiased;
    }
    .metric-gauge {
      background: linear-gradient(90deg, #10b981 var(--value), #e2e8f0 var(--value));
    }

/* roulang page: article */
:root {
      --primary: #10b981;
      --primary-dark: #059669;
      --slate-bg: #f8fafc;
      --border-color: #e2e8f0;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
      text-rendering: optimizeLegibility;
      -webkit-font-smoothing: antialiased;
      background-color: var(--slate-bg);
      color: #0f172a;
    }
    .article-body h2 {
      font-size: 1.5rem;
      line-height: 2rem;
      font-weight: 700;
      color: #0f172a;
      margin-top: 2rem;
      margin-bottom: 1rem;
      padding-left: 0.875rem;
      border-left: 4px solid var(--primary);
    }
    .article-body h3 {
      font-size: 1.25rem;
      line-height: 1.75rem;
      font-weight: 600;
      color: #1e293b;
      margin-top: 1.5rem;
      margin-bottom: 0.75rem;
    }
    .article-body p {
      margin-bottom: 1.25rem;
      line-height: 1.85;
      color: #334155;
      font-size: 1.0625rem;
    }
    .article-body ul, .article-body ol {
      margin-bottom: 1.25rem;
      padding-left: 1.5rem;
      color: #334155;
    }
    .article-body ul {
      list-style-type: disc;
    }
    .article-body ol {
      list-style-type: decimal;
    }
    .article-body li {
      margin-bottom: 0.5rem;
      line-height: 1.75;
    }
    .article-body blockquote {
      border-left: 4px solid #cbd5e1;
      background-color: #f1f5f9;
      padding: 1rem 1.25rem;
      margin: 1.5rem 0;
      border-radius: 0 0.5rem 0.5rem 0;
      color: #475569;
      font-style: italic;
    }
    .article-body pre {
      background-color: #0f172a;
      color: #e2e8f0;
      padding: 1rem 1.25rem;
      border-radius: 0.75rem;
      overflow-x: auto;
      margin: 1.5rem 0;
      font-size: 0.875rem;
      line-height: 1.6;
    }
    .article-body code {
      background-color: #e2e8f0;
      color: #0f172a;
      padding: 0.2rem 0.4rem;
      border-radius: 0.25rem;
      font-size: 0.875em;
    }
    .article-body pre code {
      background-color: transparent;
      color: inherit;
      padding: 0;
    }
    .article-body img {
      max-width: 100%;
      height: auto;
      border-radius: 0.75rem;
      margin: 1.5rem auto;
      border: 1px solid #e2e8f0;
    }

/* roulang page: category1 */
:root {
      --primary: #10b981;
      --primary-dark: #059669;
      --slate-bg: #f8fafc;
      --border-color: #e2e8f0;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
      text-rendering: optimizeLegibility;
      -webkit-font-smoothing: antialiased;
      background-color: #ffffff;
      color: #0f172a;
    }