:root {
      --bg: #121212;
      --card-bg: #4a2b32;
      --stat-bg: #2a1a21;
      --text: #fff;
      --subtext: #dcbaba;
      --link: #ffcccc;
      --border: rgba(255,255,255,0.1);
      --red: #ff6b6b;
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
      background: var(--bg);
      color: var(--text);
      line-height: 1.5;
      min-height: 100vh;
    }

    a { color: var(--link); text-decoration: none; }
    a:hover { text-decoration: underline; }

    .site-header {
      text-align: center;
      padding: 44px 20px 10px;
      max-width: 900px;
      margin: 0 auto;
    }

    .site-header h1 { font-size: 2rem; margin-bottom: 8px; }
    .site-header p { color: var(--subtext); font-size: 0.95rem; }

    .tabs-wrap { max-width: 900px; margin: 20px auto 0; padding: 0 20px; }
    .tab-bar {
      display: flex;
      gap: 4px;
      border-bottom: 1px solid var(--border);
      overflow-x: auto;
      scrollbar-width: none;
    }
    .tab-bar::-webkit-scrollbar { display: none; }
    .tab-btn {
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--subtext);
      border-bottom: 2px solid transparent;
      padding: 10px 18px;
      white-space: nowrap;
      margin-bottom: -1px;
      display: inline-block;
    }
    .tab-btn.active { color: var(--link); border-bottom-color: var(--link); }

    .card {
      background: var(--card-bg);
      border: 1px solid var(--border);
      border-radius: 16px;
      padding: 32px;
      box-shadow: 0 6px 12px rgba(0,0,0,0.35);
      margin-top: 26px;
    }

    .card h2 { font-size: 1.25rem; margin-bottom: 8px; }
    .desc { color: var(--subtext); font-size: 0.9rem; margin-bottom: 20px; }
    hr.divider { border: none; border-top: 1px solid var(--border); margin: 28px 0; }

    .limits-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 14px;
    }

    .limit-card {
      background: linear-gradient(135deg, var(--stat-bg) 0%, #3f242b 100%);
      border: 1px solid var(--border);
      border-radius: 12px;
      padding: 18px;
      text-align: center;
    }

    .limit-card i { font-size: 1.2rem; color: var(--link); }
    .limit-value { margin-top: 10px; font-size: 1.45rem; font-weight: 700; }
    .limit-label { color: var(--subtext); font-size: 0.78rem; text-transform: uppercase; margin-top: 2px; }
    .limit-note { color: var(--subtext); opacity: 0.85; font-size: 0.75rem; margin-top: 6px; }

    .limits-note {
      margin-top: 16px;
      background: rgba(0,0,0,0.2);
      border: 1px solid var(--border);
      border-radius: 10px;
      padding: 12px 14px;
      font-size: 0.86rem;
      color: var(--subtext);
    }
    .limits-note i { color: var(--red); margin-right: 4px; }

    .usage-section {
      margin-top: 24px;
      background: rgba(0,0,0,0.2);
      border: 1px solid var(--border);
      border-radius: 12px;
      padding: 18px;
    }

    .usage-section h2 { font-size: 1rem; margin-bottom: 12px; }
    .usage-loading { color: var(--subtext); font-size: 0.9rem; }
    .usage-row { display: flex; justify-content: space-between; font-size: 0.85rem; margin-bottom: 6px; }
    .usage-track { height: 10px; background: rgba(255,255,255,0.08); border-radius: 999px; overflow: hidden; }
    .usage-fill { height: 100%; width: 0%; background: linear-gradient(90deg, #6ee7a8, #34c759); transition: width 0.35s ease; }
    .usage-fill.warn { background: linear-gradient(90deg, #ffd166, #fca311); }
    .usage-fill.danger { background: linear-gradient(90deg, #ff8b8b, #ff5f5f); }

    .site-footer {
      max-width: 900px;
      margin: 26px auto 40px;
      padding: 0 20px;
      text-align: center;
      color: var(--subtext);
      font-size: 0.85rem;
    }

    @media (max-width: 780px) {
      .limits-grid { grid-template-columns: 1fr; }
      .card { padding: 24px; }
    }