/* ユルベル試作 仮UI用 最小スタイル */
:root { color-scheme: dark; }
body {
  font-family: system-ui, -apple-system, "Hiragino Sans", sans-serif;
  background: #101418;
  color: #e8ecef;
  margin: 0 auto;
  max-width: 560px;
  padding: 16px;
  line-height: 1.6;
}
h1 { font-size: 1.4rem; }
h2 { font-size: 1.1rem; border-bottom: 1px solid #2a323a; padding-bottom: 4px; }
section { margin-bottom: 28px; }
.note { color: #9aa7b1; font-size: 0.85rem; }
.my-number { font-size: 1.8rem; letter-spacing: 0.15em; font-weight: 700; }
label { display: block; margin: 10px 0; }
input {
  display: block;
  width: 100%;
  box-sizing: border-box;
  padding: 10px;
  font-size: 1rem;
  background: #1a2129;
  border: 1px solid #39434e;
  border-radius: 6px;
  color: inherit;
}
button {
  padding: 8px 14px;
  margin: 4px 4px 4px 0;
  background: #2b6cb0;
  color: #fff;
  border: 0;
  border-radius: 6px;
  font-size: 0.95rem;
  cursor: pointer;
}
ul { list-style: none; padding: 0; }
li {
  background: #1a2129;
  border: 1px solid #2a323a;
  border-radius: 6px;
  padding: 10px;
  margin-bottom: 8px;
  word-break: break-all;
}
.meta { color: #9aa7b1; font-size: 0.8rem; }