:root {
  --bg: #fff8ee;
  --card: #ffffff;
  --text: #2b2118;
  --muted: #7a6a5a;
  --accent: #e8590c;
  --accent-dark: #c2410c;
  --danger: #c92a2a;
  --line: #e8dccb;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Hiragino Sans", "Yu Gothic", Meiryo, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 18px;
  line-height: 1.5;
}
header.bar {
  display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  padding: 10px 16px; background: var(--accent); color: #fff;
}
header.bar h1 { margin: 0; font-size: 1.3rem; }
header.bar .tabs { display: flex; gap: 4px; flex-wrap: wrap; }
header.bar .tabs a {
  color: #fff; text-decoration: none; font-weight: 700; padding: 8px 12px; border-radius: 10px;
  min-height: 40px; display: inline-flex; align-items: center;
}
header.bar .tabs a.on { background: #fff; color: var(--accent-dark); }
.pill { background: rgba(255, 255, 255, 0.25); border-radius: 999px; padding: 4px 14px; }
.pill b { font-size: 1.4rem; }
main { max-width: 760px; margin: 0 auto; padding: 16px; }
h2 { font-size: 1.1rem; margin: 24px 0 8px; }
button {
  font: inherit; font-weight: 700; border: 0; border-radius: 12px; padding: 14px 20px;
  cursor: pointer; background: #efe3d0; color: var(--text); min-height: 52px;
}
button.primary { background: var(--accent); color: #fff; }
button.primary:active { background: var(--accent-dark); }
button.danger { background: var(--danger); color: #fff; }
button.ghost { background: transparent; border: 2px solid var(--line); }
button:disabled { opacity: 0.4; cursor: not-allowed; }
input {
  font: inherit; padding: 12px; border: 2px solid var(--line); border-radius: 10px; background: #fff; min-height: 52px;
}
.row { display: flex; gap: 12px; }
.row > * { flex: 1; }
.msg { min-height: 1.5em; color: var(--danger); font-weight: 700; }
.msg.ok { color: #2b8a3e; }
.card { background: var(--card); border: 2px solid var(--line); border-radius: 16px; padding: 14px 16px; }
[hidden] { display: none !important; }

/* 狭い画面（スマホ）：タブと待ち人数が1行に収まるように詰める */
@media (max-width: 480px) {
  header.bar { padding: 8px 10px; gap: 6px; }
  header.bar .tabs a { padding: 8px 8px; font-size: 0.95rem; }
  .pill { padding: 2px 10px; font-size: 0.9rem; }
  .pill b { font-size: 1.2rem; }
}