:root {
  --bg: #f7f3ee;
  --card: #ffffff;
  --ink: #2b2118;
  --muted: #7a6a5c;
  --accent: #8b4a1c;
  --accent-dark: #5e2f0e;
  --line: #e4d9cc;
  --ok: #2e7d4f;
  --warn: #b26a00;
  --danger: #b3261e;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.45;
}
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 16px; background: var(--accent-dark); color: #fff;
  position: sticky; top: 0; z-index: 5;
}
.brand { color: #fff; text-decoration: none; font-weight: 700; font-size: 1.15rem; }
#nav { display: flex; gap: 12px; align-items: center; font-size: 0.95rem; }
#nav a, #nav button { color: #fff; }
#nav button { background: transparent; border: 1px solid rgba(255,255,255,.5); padding: 4px 10px; }
main { max-width: 760px; margin: 0 auto; padding: 16px; }
h1 { font-size: 1.5rem; margin: 8px 0 12px; }
h2 { font-size: 1.2rem; margin: 20px 0 8px; }
h3 { font-size: 1.05rem; margin: 14px 0 6px; }
p { margin: 6px 0; }
a { color: var(--accent); }
.muted { color: var(--muted); }
.small { font-size: 0.9rem; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 10px;
  padding: 14px 16px; margin: 10px 0;
}
.card.link { cursor: pointer; }
.card.link:hover { border-color: var(--accent); }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.row.between { justify-content: space-between; }
.stack > * + * { margin-top: 8px; }
button, .btn {
  font: inherit; cursor: pointer; border-radius: 8px; padding: 8px 14px;
  border: 1px solid var(--accent); background: var(--accent); color: #fff;
  text-decoration: none; display: inline-block;
}
button.secondary, .btn.secondary { background: #fff; color: var(--accent); }
button.danger { background: #fff; color: var(--danger); border-color: var(--danger); }
button:disabled { opacity: .5; cursor: not-allowed; }
button.small { padding: 4px 10px; font-size: 0.9rem; }
label { display: block; font-weight: 600; margin-top: 10px; font-size: 0.95rem; }
label .hint { font-weight: 400; color: var(--muted); font-size: 0.85rem; }
input[type=text], input[type=email], input[type=password], input[type=number],
input[type=date], input[type=time], textarea, select {
  font: inherit; width: 100%; padding: 8px 10px; border: 1px solid var(--line);
  border-radius: 8px; background: #fff; margin-top: 4px;
}
textarea { min-height: 80px; resize: vertical; }
input[type=range] { width: 100%; margin-top: 6px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 12px; }
@media (max-width: 520px) { .grid2 { grid-template-columns: 1fr; } }
.badge {
  display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 0.8rem;
  background: var(--line); color: var(--ink);
}
.badge.ok { background: #dff1e6; color: var(--ok); }
.badge.warn { background: #fff0d6; color: var(--warn); }
.badge.muted { background: #eee; color: var(--muted); }
.score-row { display: flex; align-items: center; gap: 12px; }
.score-row output { min-width: 2.5em; text-align: right; font-weight: 700; font-size: 1.1rem; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }
.tags label {
  margin: 0; font-weight: 400; font-size: 0.9rem; border: 1px solid var(--line);
  border-radius: 999px; padding: 4px 10px; cursor: pointer; background: #fff;
}
.tags input { display: none; }
.tags label.on { background: var(--accent); color: #fff; border-color: var(--accent); }
table { width: 100%; border-collapse: collapse; margin-top: 8px; font-size: 0.95rem; }
th, td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 600; font-size: 0.85rem; }
td.num, th.num { text-align: right; }
.error { color: var(--danger); background: #fde8e6; padding: 8px 12px; border-radius: 8px; }
.notice { background: #fff7e6; border: 1px solid #f0d9a8; padding: 8px 12px; border-radius: 8px; }
.reveal { background: #f3ebe0; border: 1px solid #dcc9b0; padding: 12px 14px; border-radius: 10px; }
pre.info { white-space: pre-wrap; font: inherit; margin: 6px 0; }
.big { font-size: 2rem; font-weight: 700; color: var(--accent-dark); }
hr { border: 0; border-top: 1px solid var(--line); margin: 16px 0; }
details summary { cursor: pointer; font-weight: 600; }
.rumimg { max-width: 100%; max-height: 320px; border-radius: 8px; border: 1px solid var(--line); display: block; }
.imgbox { margin-top: 6px; }
.imgbox .preview { margin-bottom: 8px; max-height: 200px; }