.cp-tiles {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
    gap: 12px;
    margin-top: 6px;
  }
  .cp-tile {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    text-align: left;
    padding: 16px 18px;
    border: 1.5px solid var(--bdr);
    border-radius: 14px;
    background: var(--bg2);
    cursor: pointer;
    font: inherit;
    transition: transform .16s, border-color .16s, background .16s, box-shadow .16s;
  }
  .cp-tile:hover {
    border-color: var(--ac);
    background: var(--acl);
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(15, 23, 42, .10);
  }
  .cp-tile-name { font-weight: 700; font-size: 15px; color: var(--tx); }
  .cp-tile-count { font-size: 12px; font-weight: 600; color: var(--tx3); }

  /* Pharmacokinetics formula sheet */
  .pk-fs {
    margin: 0 0 18px;
    border: 1.5px solid var(--bdr);
    border-radius: 14px;
    background: var(--bg2);
    overflow: hidden;
  }
  .pk-fs > summary {
    cursor: pointer;
    padding: 13px 16px;
    font-weight: 700;
    font-size: 14px;
    color: var(--tx);
    list-style: none;
    display: flex;
    align-items: center;
    gap: 9px;
  }
  .pk-fs > summary::-webkit-details-marker { display: none; }
  .pk-fs-ico {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border-radius: 6px;
    background: var(--acl);
    color: var(--ac);
    font-weight: 800;
    font-size: 14px;
  }
  .pk-fs-wrap { overflow-x: auto; border-top: 1px solid var(--bdr); }
  .pk-fs-table { width: 100%; border-collapse: collapse; font-size: 13px; }
  .pk-fs-table th, .pk-fs-table td {
    padding: 9px 14px;
    text-align: left;
    border-bottom: 1px solid var(--bdr);
    vertical-align: top;
  }
  .pk-fs-table thead th {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--tx3);
    font-weight: 700;
  }
  .pk-fs-table tbody th { font-weight: 600; color: var(--tx2); }
  .pk-fs-table .pk-eq {
    font-family: 'Lora', Georgia, 'Times New Roman', serif;
    color: var(--tx);
    white-space: nowrap;
  }
  .pk-fs-table tbody tr:last-child th,
  .pk-fs-table tbody tr:last-child td { border-bottom: 0; }
  @media (max-width: 600px) {
    .pk-fs-table .pk-eq { white-space: normal; }
  }