:root {
      --bg: #EBEAE4;
      --bg-light: #F2F1EB;
      --surface: #FFFFFF;
      --card: #F7F6F1;
      --green-0: #272B26;
      --green-1: #505C4E;
      --green-2: #677365;
      --orange-1: #D05E00;
      --orange-2: #F38132;
      --orange-muted: #F0C4A0;
      --black: #191919;
      --border: #D8D7D0;
      --shadow: 0 1px 2px rgba(25,25,25,0.04), 0 4px 16px rgba(25,25,25,0.05);
      /* Answer/body copy — darker than --green-2 to clear WCAG AA (4.5:1);
         #505C4E on white is ~7:1, meeting AAA for normal text. */
      --text-secondary: var(--green-1);
    }

    @media (prefers-color-scheme: dark) {
      :root {
        --bg: #191919;
        --bg-light: #21231F;
        --surface: #272B26;
        --card: #2E332C;
        --border: #3A3F39;
        --black: #F2F1EB;
        --green-2: #A9B3A5;
        --text-secondary: #B8C1B4;
        --shadow: 0 1px 2px rgba(0,0,0,0.2), 0 4px 16px rgba(0,0,0,0.25);
      }
    }

    *, *::before, *::after { box-sizing: border-box; }

    html { scroll-behavior: smooth; }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
      background: var(--bg);
      color: var(--black);
      margin: 0;
      line-height: 1.5;
      -webkit-font-smoothing: antialiased;
    }

    a { color: var(--orange-1); text-decoration: none; }
    a:hover { text-decoration: underline; }
    a:focus-visible, button:focus-visible, summary:focus-visible {
      outline: 2px solid var(--orange-2);
      outline-offset: 2px;
    }

    .wrap {
      max-width: 760px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* ── Top bar ─────────────────────────────────────────────────── */
    .topbar {
      background: var(--green-0);
      padding: 16px 0;
    }
    .topbar .wrap {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
    }
    .logo {
      display: inline-flex;
      align-items: baseline;
      font-size: 17px;
      font-weight: 800;
      letter-spacing: 0.5px;
      color: var(--orange-2);
      text-decoration: none;
    }
    .logo span { color: #FFFFFF; letter-spacing: 3px; margin-left: 1px; }
    .logo:hover { text-decoration: none; opacity: 0.9; }
    .topbar-link {
      font-size: 13px;
      font-weight: 600;
      color: rgba(255,255,255,0.75);
    }
    .topbar-link:hover { color: #fff; }

    /* ── Hero ────────────────────────────────────────────────────── */
    .hero {
      padding: 56px 0 36px;
      text-align: center;
    }
    .hero h1 {
      font-size: clamp(28px, 5vw, 38px);
      font-weight: 800;
      letter-spacing: -0.5px;
      margin: 0 0 10px;
    }
    .hero p {
      font-size: 16px;
      color: var(--green-2);
      max-width: 460px;
      margin: 0 auto;
    }

    /* ── Quick nav pills ─────────────────────────────────────────── */
    .quicknav {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      justify-content: center;
      margin: 28px 0 8px;
    }
    .quicknav a {
      background: var(--surface);
      border: 1px solid var(--border);
      color: var(--black);
      font-size: 13px;
      font-weight: 600;
      padding: 8px 14px;
      border-radius: 999px;
      box-shadow: var(--shadow);
    }
    .quicknav a:hover {
      border-color: var(--orange-2);
      color: var(--orange-1);
      text-decoration: none;
    }

    main { padding: 12px 0 64px; }

    section { margin-top: 52px; scroll-margin-top: 24px; }

    .eyebrow {
      font-size: 12px;
      font-weight: 700;
      color: var(--orange-1);
      text-transform: uppercase;
      letter-spacing: 1.2px;
      margin: 0 0 6px;
    }
    h2 {
      font-size: 22px;
      font-weight: 800;
      margin: 0 0 18px;
      letter-spacing: -0.3px;
    }

    /* ── Contact card ────────────────────────────────────────────── */
    .contact-card {
      background: var(--green-0);
      border-radius: 16px;
      padding: 26px 28px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      flex-wrap: wrap;
      box-shadow: var(--shadow);
      margin-bottom: 32px;
    }
    .contact-card h3 { color: #fff; font-size: 17px; margin: 0 0 4px; }
    .contact-card p { color: rgba(255,255,255,0.6); font-size: 13px; margin: 0; }
    .email-link {
      color: #fff;
      font-weight: 700;
      font-size: 15px;
      white-space: nowrap;
    }
    .email-link:hover { color: var(--orange-muted); }

    /* ── Getting-started cards (Community Leaders / Members) ───────── */
    .start-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 16px;
    }
    .start-card {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: 16px;
      box-shadow: var(--shadow);
      overflow: hidden;
    }
    .start-card summary {
      cursor: pointer;
      list-style: none;
      padding: 22px 48px 22px 22px;
      position: relative;
    }
    .start-card summary::-webkit-details-marker { display: none; }
    .start-card summary::after {
      content: "+";
      position: absolute;
      right: 20px;
      top: 22px;
      font-size: 22px;
      font-weight: 400;
      color: var(--green-2);
    }
    .start-card[open] summary::after { content: "\2212"; }
    .start-card[open] summary { border-bottom: 1px solid var(--border); }
    .start-card .eyebrow-label {
      font-size: 11px;
      font-weight: 800;
      color: var(--orange-1);
      text-transform: uppercase;
      letter-spacing: 1.2px;
      margin: 0 0 6px;
    }
    .start-card .start-title {
      font-size: 18px;
      font-weight: 800;
      margin: 0;
      letter-spacing: -0.3px;
    }
    .start-card .steps {
      padding: 18px 18px 20px;
    }
    .start-card .step {
      background: var(--card);
      border: none;
      box-shadow: none;
    }
    .steps-label {
      font-size: 12px;
      font-weight: 700;
      color: var(--green-2);
      text-transform: uppercase;
      letter-spacing: 1px;
      margin: 0;
    }
    .steps-label:not(:first-child) {
      margin-top: 6px;
    }
    .callout p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; margin: 0; }

    /* ── Step guide (shared by getting-started cards & elsewhere) ──── */
    .steps {
      display: grid;
      gap: 14px;
    }
    .step {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: 14px;
      padding: 18px 20px 18px 18px;
      display: flex;
      gap: 16px;
      box-shadow: var(--shadow);
    }
    .step-num {
      flex-shrink: 0;
      width: 30px;
      height: 30px;
      border-radius: 999px;
      background: var(--orange-2);
      color: #fff;
      font-weight: 800;
      font-size: 14px;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .step h3 { font-size: 15px; font-weight: 700; margin: 2px 0 6px; }
    .step p { font-size: 14px; color: var(--text-secondary); margin: 0 0 8px; line-height: 1.6; }
    .step ul {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.6;
      margin: 0 0 10px;
      padding-left: 20px;
    }
    .step ul li { margin-bottom: 6px; }
    .step ul li:last-child { margin-bottom: 0; }
    .step p:last-child { margin-bottom: 0; }

    /* ── FAQ accordion ───────────────────────────────────────────── */
    .faq-group + .faq-group { margin-top: 28px; }
    .faq-group h3 {
      font-size: 13px;
      font-weight: 700;
      color: var(--green-2);
      text-transform: uppercase;
      letter-spacing: 0.8px;
      margin: 0 0 10px;
    }
    details {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: 12px;
      margin-bottom: 8px;
      overflow: hidden;
    }
    summary {
      cursor: pointer;
      list-style: none;
      padding: 15px 44px 15px 18px;
      font-size: 15px;
      font-weight: 600;
      position: relative;
    }
    summary::-webkit-details-marker { display: none; }
    summary::after {
      content: "+";
      position: absolute;
      right: 16px;
      top: 50%;
      transform: translateY(-50%);
      font-size: 20px;
      font-weight: 400;
      color: var(--green-2);
      transition: transform 0.15s ease;
    }
    details[open] summary::after { content: "\2212"; }
    details[open] summary { border-bottom: 1px solid var(--border); }
    .faq-body {
      padding: 4px 18px 18px;
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.65;
    }
    .faq-body p { margin: 0 0 10px; }
    .faq-body p:last-child { margin-bottom: 0; }

    /* ── Resources / footer ─────────────────────────────────────── */
    footer {
      border-top: 1px solid var(--border);
      padding: 28px 0 40px;
    }
    .footer-links {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 13px;
      margin-bottom: 14px;
    }
    .footer-links a { color: var(--green-2); font-weight: 600; }
    .footer-note { font-size: 12px; color: var(--green-2); opacity: 0.8; }

    @media (max-width: 480px) {
      .contact-card { flex-direction: column; align-items: flex-start; text-align: left; }
      .tabs { display: flex; width: 100%; }
      .tab { flex: 1; text-align: center; padding: 9px 8px; }
    }
  

    /* ── Guide pages (join-an-organization.html, invite-someone.html) ── */
    .breadcrumb { font-size: 13px; font-weight: 600; margin: 0 0 14px; }
    .breadcrumb a { color: var(--green-2); }
    .updated { font-size: 12px; color: var(--green-2); margin: 14px 0 0; }
    .lede { font-size: 15px; color: var(--text-secondary); line-height: 1.65; margin: 0 0 18px; }
    .path-title { font-size: 17px; font-weight: 800; margin: 26px 0 12px; letter-spacing: -0.2px; }
    .note {
      background: var(--card);
      border: 1px solid var(--border);
      border-left: 4px solid var(--orange-2);
      border-radius: 10px;
      padding: 12px 16px;
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.6;
      margin: 14px 0 0;
    }
    .note strong { color: var(--black); }
    .ui { font-weight: 700; color: var(--black); }
    table.compare {
      width: 100%;
      border-collapse: collapse;
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: 12px;
      overflow: hidden;
      font-size: 14px;
    }
    table.compare th, table.compare td {
      text-align: left;
      padding: 12px 14px;
      border-bottom: 1px solid var(--border);
      vertical-align: top;
      color: var(--text-secondary);
      line-height: 1.55;
    }
    table.compare th { color: var(--black); font-weight: 700; background: var(--card); }
    table.compare tr:last-child td { border-bottom: none; }
    table.compare td:first-child { color: var(--black); font-weight: 700; white-space: nowrap; }
    .table-scroll { overflow-x: auto; }
    .guide-links { display: grid; gap: 10px; margin-top: 18px; }
    .guide-link {
      display: block;
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: 12px;
      padding: 14px 18px;
      box-shadow: var(--shadow);
      color: var(--black);
      font-weight: 700;
    }
    .guide-link span { display: block; font-weight: 400; font-size: 13px; color: var(--text-secondary); margin-top: 2px; }
    .guide-link:hover { border-color: var(--orange-2); text-decoration: none; }

    /* ── Sidebar layout (help-nav.js fills #help-nav) ──────────────── */
    .layout {
      max-width: 1140px;
      margin: 0 auto;
      padding: 0 20px;
      display: grid;
      grid-template-columns: 250px minmax(0, 1fr);
      gap: 56px;
    }
    .content { min-width: 0; max-width: 760px; }
    .hero--left { text-align: left; padding: 44px 0 4px; }
    .hero--left p { margin: 0; max-width: 620px; }
    .hero--left .updated { margin-top: 12px; }
    .content main { padding-top: 0; }
    .content main > section:first-child { margin-top: 36px; }

    .sidebar {
      position: sticky;
      top: 0;
      align-self: start;
      max-height: 100vh;
      overflow-y: auto;
      padding: 36px 4px 36px 0;
    }
    /* The topic menu is a <details>; undo the FAQ accordion styling on it. */
    .topbar .wrap { max-width: 1140px; }
    .sidebar .topics { background: none; border: 0; border-radius: 0; overflow: visible; margin: 0; }
    .topics summary { display: none; }
    .topics nav { display: grid; gap: 2px; }
    .nav-group {
      font-size: 11px;
      font-weight: 800;
      color: var(--orange-1);
      text-transform: uppercase;
      letter-spacing: 1.2px;
      margin: 18px 0 6px;
    }
    .nav-group:first-child { margin-top: 0; }
    .nav-page {
      display: block;
      font-size: 14px;
      font-weight: 700;
      color: var(--black);
      padding: 6px 10px;
      border-radius: 8px;
    }
    .nav-page:hover { background: var(--bg-light); text-decoration: none; }
    .nav-page.is-current { background: var(--surface); box-shadow: var(--shadow); }
    .nav-sections { list-style: none; margin: 2px 0 8px; padding: 0 0 0 10px; }
    .nav-sections a {
      display: block;
      font-size: 13px;
      color: var(--text-secondary);
      padding: 4px 10px;
      border-left: 2px solid var(--border);
    }
    .nav-sections a:hover { color: var(--black); border-left-color: var(--green-2); text-decoration: none; }
    .nav-sections a[aria-current="location"] {
      color: var(--orange-1);
      font-weight: 700;
      border-left-color: var(--orange-2);
    }

    @media (max-width: 899px) {
      .layout { grid-template-columns: 1fr; gap: 0; }
      .sidebar { position: static; max-height: none; overflow: visible; padding: 16px 0 0; }
      .sidebar .topics {
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: 12px;
        box-shadow: var(--shadow);
        margin: 0;
      }
      .topics summary {
        display: block;
        padding: 13px 44px 13px 16px;
        font-size: 14px;
        font-weight: 700;
      }
      .topics nav { padding: 4px 12px 14px; }
      .hero--left { padding-top: 28px; }
    }