.modal {
  position: fixed;
  inset: 0;
  display: none;
  z-index: 50;
}

.modal.is-open { display: block; }

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(69, 65, 56, 0.35);
}

.modal-dialog {
  position: relative;
  width: min(860px, calc(100% - 2rem));
  margin: 6rem auto 2rem auto;

  background-color: var(--surface-strong);
  border: solid var(--text-shadow);
  border-width: 0 0.2rem 0.2rem 0;
  box-shadow: var(--shadow-2);
}

.modal-dialog:before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 0.35rem;
  background: var(--accent-ribbon);
}

.modal-header,
.modal-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;

  padding: 0.9rem 1rem;
  background-color: var(--text-secondary);
  border-bottom: 0.1rem solid var(--text-shadow);
}

.modal-footer {
  border-top: 0.1rem solid var(--text-shadow);
  border-bottom: none;
}

.modal-title {
  margin: 0;
}

.modal-body {
  padding: 1rem;
}

.icon-btn {
  width: 2.2rem;
  height: 2.2rem;
  background-color: var(--text-shadow);
  border: none;
  cursor: pointer;
  position: relative;
}

.icon-btn:hover {
  box-shadow: 0.2em 0.2em 0.1em 0 var(--text-shadow);
}