.modal {
  display: none;
  position: fixed;
  z-index: 9999;
  left: 0;
  top: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.5);
}

.modal-content {
  position: relative;
  background-color: white;
  width: 90%;
  max-width: 600px;
  max-height: 90vh;
  margin: 5vh auto;
  padding: 20px 30px 30px 30px;
  overflow-y: auto;
  border-radius: 12px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.close-btn {
  position: sticky;
  top: 0;
  float: right;
  background-color: white;
  padding: 6px 12px;
  margin: -20px -30px 10px 0;
  font-size: 28px;
  font-weight: bold;
  color: #aaa;
  cursor: pointer;
  border-bottom: 1px solid #eee;
  z-index: 10;
}
.close-btn:hover {
  color: black;
}

.help-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: auto;              /* allows natural width */
  word-wrap: break-word;           /* legacy support */
}

.help-table td {
  padding: 0.4em 0.5em;
  border: none;
  vertical-align: top;
  word-break: break-word;          /* ensures long words (e.g. URLs) break */
  white-space: normal;             /* allows wrapping */
}

.help-table td:first-child {
  width: 2em;
  text-align: center;
  font-size: 1.3em;
  white-space: nowrap;             /* keeps icon from wrapping */
}