.preference-card {
  max-width: 760px;
  margin: 28px auto 0;
  padding: clamp(28px, 5vw, 46px);
}

.preference-card h2 { margin: 8px 0 10px; }
.preference-card > p { max-width: 58ch; }
.preference-form { margin-top: 26px; }
.preference-form .field select { width: 100%; }
.preference-form textarea {
  width: 100%;
  resize: vertical;
  font: inherit;
  line-height: 1.5;
}
.optional { font-weight: 500; }
.difficulty-field {
  margin: 25px 0;
  padding: 0;
  border: 0;
}
.difficulty-field legend { margin-bottom: 13px; font-weight: 800; }
.difficulty-options { display: grid; gap: 10px; }
.difficulty-options label {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid rgba(25, 43, 75, .17);
  border-radius: 12px;
  cursor: pointer;
  font-weight: 700;
}
.difficulty-options input { accent-color: #152a4b; }
.difficulty-options span {
  display: inline-grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border-radius: 50%;
  background: rgba(25, 43, 75, .09);
  font-family: "DM Mono", monospace;
}
.answer-unknown { border-style: dashed; }
.level-preview {
  min-height: 58px;
  margin: 18px 0 22px;
  padding: 15px 18px;
  border: 1px solid rgba(25, 43, 75, .17);
  border-radius: 14px;
  background: rgba(255, 255, 255, .56);
  font-weight: 700;
}
.level-preview b { color: var(--ink, #152a4b); }
.preference-saved { margin: 18px 0 0; font-weight: 700; }

@media (max-width: 720px) {
  .preference-card { margin-top: 20px; }
}