.ref-dashboard {
      display: grid;
      grid-template-columns: 300px 1fr;
      gap: 24px;
      align-items: start;
    }
    .ref-panel {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--r-xl);
      padding: 24px;
    }
    .ref-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-bottom: 24px;
    }
    .ref-stat-card {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--r-lg);
      padding: 20px;
      text-align: center;
    }
    .ref-stat-card__icon { font-size: 28px; margin-bottom: 10px; }
    .ref-stat-card__val  { font-size: 28px; font-weight: 800; letter-spacing: -.03em; margin-bottom: 4px; font-variant-numeric: tabular-nums; }
    .ref-stat-card__label { font-size: 12px; color: var(--text3); }

    /* Referral link box */
    .ref-link-box {
      display: flex; gap: 8px;
    }
    .ref-link-input {
      flex: 1;
      background: var(--surface2);
      border: 1px solid var(--border2);
      border-radius: var(--r-sm);
      padding: 10px 14px;
      font-size: 13px; color: var(--text2);
      outline: none; font-family: 'Courier New', monospace;
    }
    .ref-link-input:focus { border-color: var(--primary); }

    /* Level cards */
    .levels-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 12px;
      margin: 24px 0;
    }
    .level-card {
      background: var(--surface2);
      border: 1px solid var(--border);
      border-radius: var(--r-lg);
      padding: 20px 14px;
      text-align: center;
      transition: all .25s;
    }
    .level-card:hover { border-color: var(--primary); }
    .level-card.active {
      border-color: var(--primary);
      background: var(--primary-dim);
      box-shadow: 0 8px 32px rgba(75,124,255,.2);
    }
    .level-card__medal { font-size: 32px; margin-bottom: 10px; }
    .level-card__name  { font-size: 11px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--text3); margin-bottom: 6px; }
    .level-card__pct   { font-size: 26px; font-weight: 800; margin-bottom: 4px; }
    .level-card__pct--active { color: var(--primary); }
    .level-card__req   { font-size: 11px; color: var(--text3); line-height: 1.4; }
    .level-card.active .level-card__name { color: var(--primary); }

    /* Referral table */
    .ref-table { width: 100%; border-collapse: collapse; }
    .ref-table th {
      font-size: 11px; font-weight: 700; letter-spacing: .05em; text-transform: uppercase;
      color: var(--text3); padding: 10px 14px; text-align: left;
      border-bottom: 1px solid var(--border);
    }
    .ref-table td {
      padding: 12px 14px;
      border-bottom: 1px solid var(--border);
      font-size: 13px; vertical-align: middle;
    }
    .ref-table tr:last-child td { border-bottom: none; }
    .ref-table tbody tr { transition: background .15s; }
    .ref-table tbody tr:hover { background: rgba(255,255,255,.02); }

    /* Chart bars (CSS only sparkline) */
    .bar-chart {
      display: flex; align-items: flex-end; gap: 6px;
      height: 80px; padding: 0 4px;
    }
    .bar-item {
      flex: 1; display: flex; flex-direction: column; align-items: center; gap: 4px;
    }
    .bar-item__bar {
      width: 100%; border-radius: 4px 4px 0 0;
      background: linear-gradient(180deg, var(--primary), rgba(75,124,255,.5));
      min-height: 4px;
      transition: height .6s var(--ease-out);
    }
    .bar-item__label { font-size: 9px; color: var(--text3); white-space: nowrap; }

    /* Social share */
    .social-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
    .social-btn {
      display: flex; align-items: center; justify-content: center; gap: 6px;
      padding: 10px; border-radius: var(--r-sm);
      border: 1px solid var(--border2); background: var(--surface2);
      font-size: 13px; font-weight: 600; color: var(--text2);
      cursor: pointer; transition: all .2s;
    }
    .social-btn:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-dim); }

    @media (max-width: 1100px) { .ref-stats-grid { grid-template-columns: repeat(2, 1fr); } .levels-grid { grid-template-columns: repeat(3, 1fr); } }
    @media (max-width: 900px)  { .ref-dashboard { grid-template-columns: 1fr; } }
    @media (max-width: 600px)  { .ref-stats-grid { grid-template-columns: 1fr 1fr; } .levels-grid { grid-template-columns: repeat(2, 1fr); } .social-grid { grid-template-columns: 1fr 1fr; } }