input[data-uppercase-only],
    #sistersContainer input[name="name"] {
      text-transform: uppercase;
    }

    #registrationForm .reg-field-label {
      display: block;
      min-width: 0;
    }

    #registrationForm .reg-field-label .req,
    #registrationForm .reg-consent-text .req {
      display: inline;
      color: #e9404c;
      font-weight: 900;
      line-height: inherit;
      vertical-align: baseline;
    }

    #registrationForm .reg-consent-text {
      flex: 1;
      min-width: 0;
    }

    #regObservationsGroup[hidden] {
      display: none !important;
    }

    #sistersContainer {
      display: grid;
      gap: 16px;
    }

    #sistersContainer .sister-entry {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 14px;
      align-items: end;
      margin: 0;
      padding: 18px;
      border: 1px solid #cde9df;
      border-radius: 16px;
      background: #ffffffb3;
    }

    #sistersContainer .sister-field {
      display: flex;
      flex-direction: column;
      gap: 8px;
      min-width: 0;
      color: #405b53;
      font-size: 13px;
      font-weight: 800;
    }

    #sistersContainer .sister-field--wide {
      grid-column: 1 / -1;
    }

    #sistersContainer .sister-entry input:not([type="hidden"]),
    #sistersContainer .sister-entry select {
      box-sizing: border-box;
      width: 100%;
      min-width: 0;
      min-height: 48px;
      margin: 0;
      padding: 12px;
      border: 1px solid #ccddd8;
      border-radius: 10px;
      background: #fff;
      color: #2a3950;
      font: inherit;
      font-size: 16px;
      font-weight: 500;
    }

    #sistersContainer .sister-entry select:disabled {
      background: #f1f6f4;
      color: #7d8b85;
      opacity: 1;
    }

    #sistersContainer .sister-actions {
      display: flex;
      justify-content: flex-end;
      grid-column: 1 / -1;
    }

    #sistersContainer .sister-actions button {
      min-height: 40px;
      padding: 9px 14px;
      font: inherit;
      font-size: 13px;
      font-weight: 700;
      cursor: pointer;
    }

    @media (max-width: 480px) {
      #sistersContainer .sister-entry {
        grid-template-columns: minmax(0, 1fr);
        gap: 12px;
        padding: 14px;
      }
    }

    /* Botones de confirmación: se adapta a computadora y celular. */
    #completed .completed-actions {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: center;
      gap: 14px;
      margin-top: 28px;
    }

    #completed .completed-actions .btn {
      box-sizing: border-box;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      min-height: 58px;
      padding: 14px 24px;
      border-radius: 12px;
      cursor: pointer;
      font: inherit;
      font-weight: 800;
      text-decoration: none;
    }

    #completed .completed-actions [hidden] {
      display: none !important;
    }

    #completed #copyWhatsappLink {
      background: #edf5ff;
      border: 1px solid #c7dcfa;
      color: #194b9a;
    }

    #completed #copyWhatsappLink:hover {
      background: #deebff;
    }

    /* Notificación flotante al copiar el enlace del grupo. */
    #completed #copyWhatsappFeedback {
      position: fixed;
      z-index: 10000;
      left: 50%;
      bottom: 25px;
      transform: translateX(-50%);
      box-sizing: border-box;
      width: min(440px, calc(100vw - 32px));
      margin: 0;
      padding: 17px 22px;
      border: 1px solid #a1e3bf;
      border-radius: 14px;
      background: #e8fff1;
      box-shadow: 0 12px 35px rgba(12, 72, 50, 0.18);
      color: #08784f;
      text-align: center;
      font-size: 15px;
      font-weight: 800;
      line-height: 1.45;
      pointer-events: none;
    }

    #completed #copyWhatsappFeedback.copy-error {
      border-color: #f3b5b5;
      background: #fff1f1;
      color: #a32222;
    }

    #completed #copyWhatsappFeedback[hidden] {
      display: none !important;
    }

    @media (max-width: 650px) {
      #completed .completed-actions {
        flex-direction: column;
      }

      #completed .completed-actions .btn {
        width: min(100%, 360px);
      }
    }