:root { --bg:#f5f6f8; --card:#fff; --text:#1f2933; --muted:#6b7280; --line:#e5e7eb; --primary:#1d4ed8; --danger:#b91c1c; --ok:#047857; --warn:#b45309; }
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin:0; font-family: -apple-system, "Segoe UI", "Hiragino Sans", "Noto Sans JP", sans-serif; background:var(--bg); color:var(--text); font-size:16px; line-height:1.6; }
header.top { background:#111827; color:#fff; padding:10px 16px; display:flex; flex-wrap:wrap; gap:8px 24px; align-items:center; }
header .brand { font-weight:700; font-size:18px; }
header .brand a { color:#fff; text-decoration:none; }
header .brand .sub { font-weight:400; font-size:13px; color:#cbd5e1; margin-left:8px; }
header nav.nav-desktop { display:flex; flex-wrap:wrap; gap:4px 16px; align-items:center; }
header nav a, header button.link { color:#e5e7eb; text-decoration:none; background:none; border:0; font:inherit; cursor:pointer; padding:6px 0; }
header nav a:hover, header button.link:hover { color:#fff; text-decoration:underline; }
details.nav-mobile { display:none; width:100%; }
details.nav-mobile summary { cursor:pointer; list-style:none; padding:10px 12px; border:1px solid #374151; border-radius:8px; font-weight:600; text-align:center; }
details.nav-mobile summary::-webkit-details-marker { display:none; }
.nav-mobile-links { display:flex; flex-direction:column; padding-top:6px; }
.nav-mobile-links a, .nav-mobile-links button.link { display:block; width:100%; text-align:left; padding:12px 10px; border-bottom:1px solid #374151; color:#e5e7eb; text-decoration:none; font-size:16px; }
main { max-width:1000px; margin:0 auto; padding:16px; }
footer { text-align:center; color:var(--muted); font-size:12px; padding:24px; }
h1 { font-size:22px; margin:8px 0 16px; } h2 { font-size:17px; margin:0 0 12px; } h3 { font-size:15px; margin:8px 0; }
.card { background:var(--card); border:1px solid var(--line); border-radius:10px; padding:16px; margin-bottom:16px; }
.card.narrow { max-width:420px; margin:40px auto; }
.grid { display:grid; grid-template-columns:repeat(auto-fit, minmax(280px, 1fr)); gap:16px; }
label { display:block; margin:10px 0; font-weight:600; }
input[type=text], input[type=password], input[type=number], select, textarea { display:block; width:100%; margin-top:4px; padding:12px; font:inherit; font-size:16px; border:1px solid #cbd5e1; border-radius:8px; background:#fff; }
input[type=checkbox] { width:22px; height:22px; vertical-align:middle; }
button, a.button { display:inline-block; min-height:44px; padding:10px 18px; border-radius:8px; border:1px solid var(--line); background:#fff; font:inherit; font-size:16px; cursor:pointer; text-decoration:none; color:var(--text); }
button.primary, a.button { background:var(--primary); color:#fff; border-color:var(--primary); }
a.button.secondary { background:#fff; color:var(--primary); }
button.danger { background:var(--danger); color:#fff; border-color:var(--danger); }
button[disabled] { opacity:.5; cursor:not-allowed; }
button.small { min-height:36px; padding:6px 12px; font-size:14px; }
button.link { background:none; border:0; min-height:0; padding:4px 0; color:var(--primary); text-decoration:underline; }
button.link.small { color: var(--muted); font-size:13px; }
form.inline { display:inline; }
.flash { padding:12px 14px; border-radius:8px; margin-bottom:12px; }
.flash.info { background:#ecfdf5; color:var(--ok); border:1px solid #a7f3d0; }
.flash.error { background:#fef2f2; color:var(--danger); border:1px solid #fecaca; }
.status { font-size:20px; font-weight:700; }
.status.active { color:var(--ok); } .status.paused { color:var(--warn); }
.big { font-size:26px; font-weight:700; margin:4px 0; }
.muted { color:var(--muted); font-size:14px; }
dl { display:grid; grid-template-columns:auto 1fr; gap:4px 16px; margin:8px 0; } dt { color:var(--muted); } dd { margin:0; word-break:break-word; }
table { width:100%; border-collapse:collapse; font-size:14px; } th, td { text-align:left; padding:8px 6px; border-bottom:1px solid var(--line); vertical-align:top; word-break:break-word; } th { color:var(--muted); font-weight:600; }
.change { border-left: 4px solid var(--line); padding-left: 12px; margin: 12px 0; }
.change p.before { background:#fef2f2; padding:8px; border-radius:6px; text-decoration: line-through; color:#7f1d1d; }
.change p.after { background:#ecfdf5; padding:8px; border-radius:6px; color:#064e3b; }
pre.diff, pre.report { white-space: pre-wrap; word-break:break-word; background:#f8fafc; padding:12px; border-radius:8px; font-size:13px; overflow-x:auto; }
td.ok { color: var(--ok); font-weight:600; } td.ng { color: var(--danger); font-weight:600; }
.dismiss-row { margin-top:8px; display:flex; flex-wrap:wrap; gap:4px 14px; }
code { background:#f1f5f9; padding:1px 4px; border-radius:4px; font-size:13px; }
.actions { display:flex; flex-wrap:wrap; gap:8px; }

/* ---- phones and small tablets ---- */
@media (max-width: 720px) {
  header.top { padding:10px 12px; gap:8px; }
  header .brand { font-size:17px; }
  header .brand .sub { display:block; margin:0; font-size:12px; }
  header nav.nav-desktop { display:none; }
  details.nav-mobile { display:block; }
  main { padding:12px; }
  h1 { font-size:20px; }
  .card { padding:14px; border-radius:10px; }
  .card.narrow { margin:16px auto; }
  .grid { grid-template-columns:1fr; }
  dl { grid-template-columns:1fr; gap:0; } dt { margin-top:6px; font-size:13px; }
  /* tables become stacked cards; each cell shows its column name from data-label */
  table.cards, table.cards tbody, table.cards tr, table.cards td { display:block; width:100%; }
  table.cards thead { display:none; }
  table.cards tr { border:1px solid var(--line); border-radius:10px; padding:10px 12px; margin-bottom:10px; background:#fff; }
  table.cards td { border:0; padding:4px 0; }
  table.cards td[data-label]::before { content: attr(data-label); display:block; color:var(--muted); font-size:12px; }
  table.cards td.check { padding-bottom:0; }
  button, a.button { width:100%; margin:6px 0; }
  button.small { width:auto; }
  form.inline, form.inline button { width:100%; }
  .actions button { width:100%; }
  pre.diff, pre.report { font-size:12px; }
}