.sch-doc {
      padding-top: 170px;
    }

    .sch-date-top {
      text-align: right;
      font-size: 12px;
      margin-bottom: 40px;
    }

    .sch-title {
      font-size: 26px;
      font-weight: 900;
      text-align: center;
      margin: 0 0 10px;
    }

    .sch-student-box {
      background: #8ec9e8;        /* xanh giống bill-to của invoice/loa */
      padding: 14px 18px;
      margin-bottom: 20px;
      display: flex;
      gap: 20px;
    }

    .sch-student-col {
      flex: 1;                    /* 50-50 */
      display: flex;
      flex-direction: column;
      gap: 6px;
      font-size: 13px;
    }

    .sch-student-col .inline-label {
      font-weight: 600;
    }

    .sch-student-box .highlight {
      font-weight: 700;
    }
    .sch-student-col > div {
      margin: 2px 0;
    }

    .sch-body {
      margin-top: 16px;
      font-size: 13px;
      text-align: justify;
    }

    .sch-signature-block {
      margin-bottom: 20px;
    }

    .sch-signature-img {
      height: 50px;
      display: block;
      margin-bottom: 4px;
    }

    .sch-principal-name {
      font-weight: 700;
      margin-bottom: 2px;
    }

    .sch-principal-title {
      font-size: 12px;
    }