:root {
  --sakura: #b04a6a;
  --sakura-dark: #8e3552;
  --sakura-bg: #fbeef2;
  --paper: #fffdf9;
  --washi: #faf6ef;
  --ink: #2b2320;
  --muted: #8a7f78;
  --line: #e8ddd2;
  --matcha: #4a7c59;
  --gold: #8a6d3b;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--washi);
  color: var(--ink);
  font-family: -apple-system, "Segoe UI", Roboto, "Hiragino Sans", "Noto Sans JP", sans-serif;
  line-height: 1.6;
}
#app { max-width: 640px; margin: 0 auto; padding: 16px 16px 48px; }
h1 { font-size: 22px; margin: 8px 0 4px; }
h2 { font-size: 19px; margin: 8px 0; }
h3 { font-size: 17px; margin: 6px 0; }
p { margin: 8px 0; }
.jp { font-family: "Hiragino Sans", "Noto Sans JP", sans-serif; }
.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px;
  margin-top: 16px;
  box-shadow: 0 1px 4px rgba(0,0,0,.04);
}
.muted { color: var(--muted); font-size: 13px; }
.small { font-size: 12.5px; }
.btn {
  display: block; width: 100%;
  padding: 14px; font-size: 16px; font-weight: 800;
  border-radius: 12px; border: none; cursor: pointer;
  background: var(--paper); color: var(--ink);
  border: 1px solid var(--line);
}
.btn.primary { background: var(--sakura); color: #fff; border: none; }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btnrow { display: flex; gap: 8px; margin-top: 16px; }
.btnrow .btn { flex: 1; }
.opt {
  display: block; width: 100%;
  padding: 13px 14px; font-size: 15px; text-align: left;
  border-radius: 12px; border: 1px solid var(--line);
  background: var(--washi); cursor: pointer; margin-top: 8px;
  line-height: 1.6; word-break: break-word;
}
.opt.picked { background: var(--sakura-bg); border: 2px solid var(--sakura); }
.badge {
  display: inline-block; font-size: 11px; font-weight: 700;
  color: var(--sakura-dark); background: var(--sakura-bg);
  border-radius: 999px; padding: 4px 12px;
}
.grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 4px; margin-bottom: 16px; }
.grid button {
  padding: 6px 0; font-size: 12px; border-radius: 8px;
  border: 1px solid var(--line); background: var(--paper); cursor: pointer;
}
.grid button.done { background: var(--sakura-bg); }
.grid button.cur { border: 2px solid var(--sakura); font-weight: 800; }
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 12px; font-weight: 700;
}
.timer { font-size: 16px; font-weight: 800; }
.timer.low { color: #d32f2f; }
.langbtn {
  background: none; border: 1px solid var(--line); border-radius: 999px;
  padding: 4px 12px; font-size: 12px; cursor: pointer; color: var(--muted);
}
.idnbox {
  font-size: 13px; background: var(--washi); border-radius: 10px;
  padding: 10px 12px; margin-top: 8px; line-height: 1.7;
}
.speaker {
  width: 72px; height: 72px; border-radius: 50%;
  border: none; background: var(--sakura); color: #fff;
  font-size: 30px; cursor: pointer; margin: 8px auto;
}
.speaker:disabled { opacity: .45; cursor: not-allowed; }
input[type=text] {
  width: 100%; padding: 12px 14px; font-size: 16px;
  border-radius: 12px; border: 1px solid var(--line); background: #fff;
}
.cert {
  border: 3px double var(--gold); border-radius: 12px;
  padding: 20px 16px; margin-top: 16px;
  background: #fffdf5; text-align: center;
}
.cert h4 { font-size: 20px; margin: 8px 0 0; }
.stamp {
  display: inline-block; font-size: 16px; font-weight: 800;
  border: 2px solid currentColor; border-radius: 8px;
  padding: 6px 18px; margin-top: 8px; transform: rotate(-2deg);
}
.stamp.pass { color: #2e7d32; }
.stamp.fail { color: #c62828; }
.review-item { padding: 10px 0; border-top: 1px solid var(--line); font-size: 13.5px; }
.linkbtn {
  background: none; border: none; color: var(--muted);
  font-size: 12.5px; cursor: pointer; text-decoration: underline;
}
.linkbtn.danger { color: #d32f2f; font-weight: 700; text-decoration: none; }
hr.sep { border: none; border-top: 1px solid #d9c9a3; margin: 12px 0; }