:root {
  --bg: #f6f6f4;
  --surface: #ffffff;
  --text: #1d1d1b;
  --muted: #6b6b66;
  --border: #dcdcd6;
  --accent: #1f5f8b;
  --error: #a32020;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
}

* { box-sizing: border-box; }
body { margin: 0; line-height: 1.5; }
main { max-width: 72rem; margin: 0 auto; padding: 1.5rem 1rem 3rem; }
h1 { font-size: 1.5rem; margin: 0 0 1rem; }

.site-header {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.75rem 1rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.site-header .brand { font-weight: 600; color: var(--text); text-decoration: none; }
.site-header nav { display: flex; gap: 1rem; flex: 1; }
.site-header nav a { color: var(--accent); text-decoration: none; }
.site-header .user { display: flex; align-items: center; gap: 0.75rem; color: var(--muted); }
.site-header form { margin: 0; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.5rem;
}
.card.narrow { max-width: 24rem; margin: 2rem auto; }

label { display: block; margin: 0.75rem 0 0.25rem; font-weight: 500; }
input[type="text"], input[type="password"] {
  width: 100%;
  padding: 0.5rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  font: inherit;
}
button {
  margin-top: 1rem;
  padding: 0.5rem 1rem;
  border: 0;
  border-radius: 4px;
  background: var(--accent);
  color: #fff;
  font: inherit;
  cursor: pointer;
}
button.link-button {
  margin: 0;
  padding: 0;
  background: none;
  color: var(--accent);
  text-decoration: underline;
}
.error { color: var(--error); }
.muted { color: var(--muted); }

.notice { color: var(--muted); font-size: 0.9rem; }
.checkbox { display: flex; gap: 0.5rem; align-items: flex-start; margin-top: 1rem; font-weight: normal; }
.checkbox input { margin-top: 0.3rem; }
svg.qr { display: block; width: 12rem; height: 12rem; margin: 1rem auto; }
.secret { font-family: ui-monospace, Menlo, monospace; letter-spacing: 0.05em; word-break: break-all; }
.codes { columns: 2; font-family: ui-monospace, Menlo, monospace; font-size: 1.05rem; padding-left: 1.25rem; }
a.button { display: inline-block; margin-top: 1rem; padding: 0.5rem 1rem; border-radius: 4px; background: var(--accent); color: #fff; text-decoration: none; }

main.wide { max-width: 80rem; }
.toolbar { display: flex; gap: 0.75rem; align-items: center; flex-wrap: wrap; margin: 0 0 1rem; }
.toolbar h1 { margin: 0; flex: 1; }
.toolbar form { margin: 0; }
table.list { width: 100%; border-collapse: collapse; background: var(--surface); border: 1px solid var(--border); }
table.list th, table.list td { padding: 0.45rem 0.6rem; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
table.list th { font-weight: 600; background: #fafaf8; }
table.list td.num, table.list th.num { text-align: right; white-space: nowrap; }
table.list td.nowrap { white-space: nowrap; }
table.list tr:last-child td { border-bottom: 0; }
.field { display: block; margin: 0 0 0.75rem; }
.field > span { display: block; font-weight: 500; margin-bottom: 0.2rem; }
.field input, .field select, .field textarea { width: 100%; padding: 0.45rem; border: 1px solid var(--border); border-radius: 4px; font: inherit; background: #fff; }
.field .hint { color: var(--muted); }
.required { color: var(--error); }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); gap: 0 1rem; }
.section { background: var(--surface); border: 1px solid var(--border); border-radius: 6px; padding: 1rem 1.25rem; margin: 0 0 1.25rem; overflow-x: auto; }
.section h2 { font-size: 1.1rem; margin: 0 0 0.75rem; }
form.inline { display: inline; margin: 0; }
form.inline button, .toolbar button, .toolbar a.button { margin-top: 0; }
button.secondary, a.button.secondary { background: #e6e6e1; color: var(--text); }
button.danger { background: var(--error); }
button.small { padding: 0.2rem 0.6rem; font-size: 0.85rem; }
.notice-box { padding: 0.6rem 0.8rem; border-radius: 4px; margin: 0 0 1rem; border: 1px solid var(--border); background: var(--surface); }
.notice-box.error { border-color: var(--error); color: var(--error); }
.notice-box.success { border-color: #2e7d32; color: #2e7d32; }
.notice-box ul { margin: 0.25rem 0 0; padding-left: 1.25rem; }
.badge { display: inline-block; padding: 0.05rem 0.45rem; border-radius: 999px; font-size: 0.8rem; background: #e6e6e1; }
.badge.good { background: #e3f1e4; color: #1e5b22; }
.badge.warn { background: #fdf0d5; color: #7a4e00; }
.badge.bad { background: #f9e0e0; color: var(--error); }
.totals { margin-left: auto; max-width: 22rem; }
.totals td { padding: 0.2rem 0.4rem; }
.totals tr.grand td { font-weight: 700; font-size: 1.05rem; border-top: 1px solid var(--border); }
dl.facts { display: grid; grid-template-columns: max-content 1fr; gap: 0.25rem 1rem; margin: 0; }
dl.facts dt { color: var(--muted); }
dl.facts dd { margin: 0; }
.line-form { display: grid; grid-template-columns: 3fr 0.8fr 1fr 1.6fr 0.8fr auto; gap: 0.5rem; align-items: end; }
.line-form .field { margin: 0; }
@media (max-width: 900px) { .line-form { grid-template-columns: 1fr 1fr; } }
.muted-row td { color: var(--muted); }
pre.code { white-space: pre-wrap; font-size: 0.85rem; }

/* Layout helpers instead of inline styles (the CSP allows style-src 'self' only). */
.field.grow { flex: 1; margin: 0; }
.spaced { margin-top: 1rem; }
.spaced-small { margin-top: 0.75rem; }
.logo-preview { max-width: 18rem; max-height: 4rem; }