:root {
  --primary: #0399b4; --primary-deep: #025f72; --primary-pale: #e8f9fd;
  --text: #675956; --bg: #f5f5f5; --surface: #fff; --line: #e5e7eb;
  --danger: #ef4444; --danger-pale: #fdeaea; --success: #10b981; --muted: #94a3b8;
}
* { box-sizing: border-box; }
body { margin: 0; font: 15px/1.7 "Hiragino Sans", "Noto Sans JP", system-ui, sans-serif; color: var(--text); background: var(--bg); }
.bar { display: flex; align-items: center; gap: 16px; padding: 10px 16px; background: var(--surface); border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.brand { font-weight: 700; color: var(--primary-deep); }
nav { display: flex; gap: 4px; flex-wrap: wrap; flex: 1; }
nav a { padding: 6px 12px; border-radius: 8px; color: var(--text); text-decoration: none; }
nav a[aria-current="page"] { background: var(--primary-pale); color: var(--primary-deep); font-weight: 700; }
.who { color: var(--muted); font-size: 13px; }
main { max-width: 960px; margin: 24px auto; padding: 0 16px; }
h1 { font-size: 20px; margin: 0 0 16px; color: var(--primary-deep); }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 16px; margin-bottom: 16px; }
table { width: 100%; border-collapse: collapse; background: var(--surface); }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 13px; color: var(--muted); font-weight: 600; }
.tablewrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; }
input, select { font: inherit; padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px; min-width: 0; }
button, .btn { font: inherit; padding: 8px 16px; border: 0; border-radius: 8px; background: var(--primary); color: #fff; cursor: pointer; text-decoration: none; display: inline-block; }
button.sub, .btn.sub { background: var(--surface); color: var(--primary-deep); border: 1px solid var(--primary); }
button.danger { background: var(--danger); }
button:disabled { opacity: .5; cursor: not-allowed; }
.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-bottom: 12px; }
.note { color: var(--muted); font-size: 13px; }
.error { background: var(--danger-pale); color: #b91c1c; padding: 10px 14px; border-radius: 8px; margin-bottom: 12px; }
.ok { color: #047857; }
.code { font: 700 28px/1.4 ui-monospace, Menlo, monospace; letter-spacing: .12em; padding: 16px; background: var(--primary-pale); border-radius: 12px; text-align: center; user-select: all; }
.pill { display: inline-block; padding: 1px 10px; border-radius: 999px; background: var(--primary-pale); color: var(--primary-deep); font-size: 13px; margin-right: 4px; }
.dl { display: grid; grid-template-columns: 8em 1fr; gap: 4px 12px; margin: 0; }
.dl dt { color: var(--muted); } .dl dd { margin: 0; word-break: break-all; }
a.link { color: var(--primary-deep); }
@media (max-width: 600px) { .dl { grid-template-columns: 1fr; } }
.prewrap { white-space: pre-wrap; overflow-wrap: anywhere; }
#nfc-url { flex: 1; min-width: 18em; }