* { box-sizing: border-box; }

body {
  margin: 0; min-height: 100vh; padding: 32px 16px;
  display: flex; justify-content: center; align-items: flex-start;
  background: linear-gradient(180deg, #f4efe3 0%, #e9ddc6 100%);
  font-family: Georgia, 'Times New Roman', serif; color: #3a3320;
}
.card {
  width: 100%; max-width: 680px; background: #fffdf5;
  border: 1.5px solid #c99a4a; border-radius: 14px;
  padding: 28px 32px 32px; box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}
h1 { margin: 0 0 6px; color: #b0402f; font-size: 28px; }
.hint { margin: 0 0 18px; color: #9a7a4a; font-size: 14px; line-height: 1.5; }
.play-link {
  display: inline-block; margin: 0 0 16px; padding: 9px 16px;
  background: #f0d0a0; border: 1.5px solid #d64534; border-radius: 10px;
  color: #7a3010; font-weight: 700; text-decoration: none; font-size: 14px;
}
.play-link:hover { background: #f6dcb4; }
.error {
  background: #fbe3df; border: 1.5px solid #c0552f; color: #8a2f12;
  border-radius: 8px; padding: 10px 14px; margin-bottom: 16px; font-size: 14px;
}
fieldset { margin: 18px 0 0; padding: 12px 14px; border: 1.5px solid #cbb488; border-radius: 8px; }
legend { font-weight: 700; color: #b0402f; padding: 0 6px; }
.radio { display: flex; align-items: center; gap: 10px; font-weight: 400; margin: 8px 0; cursor: pointer; }
.radio b { color: #7a3010; }
.radio.standalone { margin: 16px 0 0; }
.tiles { display: flex; flex-wrap: wrap; gap: 6px; }
.tile input { position: absolute; opacity: 0; pointer-events: none; }
.tile span {
  display: block; min-width: 42px; padding: 7px 12px; text-align: center; font-size: 16px;
  border: 1.5px solid #cbb488; border-radius: 8px; background: #fff; cursor: pointer; user-select: none;
}
.tile input:checked + span { background: #f0d0a0; border-color: #d64534; color: #7a3010; font-weight: 700; }
.tile span:hover { border-color: #d64534; }
button[type="submit"] {
  margin-top: 22px; width: 100%; font-family: inherit; font-size: 17px; font-weight: 700; padding: 13px;
  border: 1.5px solid #a5301f; border-radius: 10px; background: #eab04f; color: #5a2408; cursor: pointer;
}
button[type="submit"]:hover { background: #f0bd66; }