:root {
  --bg: #f6f7f9; --card: #fff; --text: #1d2330; --muted: #667085; --line: #e3e6ec;
  --accent: #2f6fdb; --accent-dark: #2459b3; --ok: #1f8a4c; --warn: #b26a00; --error: #c0362c;
  --radius: 10px;
}
* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--accent); }
h1 { font-size: 1.6rem; margin: 0 0 16px; }
h2 { font-size: 1.2rem; margin: 0 0 12px; }
h2 small { font-weight: 400; color: var(--muted); }
.topbar { display: flex; justify-content: space-between; align-items: center; padding: 12px 24px; background: var(--card); border-bottom: 1px solid var(--line); }
.topbar nav { display: flex; gap: 16px; align-items: center; }
.brand { font-weight: 700; letter-spacing: .04em; color: var(--text); text-decoration: none; }
main { max-width: 1100px; margin: 32px auto; padding: 0 24px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; margin-bottom: 24px; }
.narrow { max-width: 420px; margin: 64px auto; }
.page-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
label { display: block; margin-bottom: 12px; font-weight: 500; }
label small { display: block; font-weight: 400; color: var(--muted); }
input, select { display: block; width: 100%; margin-top: 4px; padding: 8px 10px; border: 1px solid var(--line); border-radius: 6px; font: inherit; }
input[type=checkbox] { display: inline; width: auto; margin: 0 6px 0 0; }
.row { display: flex; gap: 12px; }
.row > * { flex: 1; }
.row > .grow { flex: 3; }
button, .button { display: inline-block; padding: 8px 16px; border: 1px solid var(--line); border-radius: 6px; background: var(--card); color: var(--text); font: inherit; cursor: pointer; text-decoration: none; }
button.primary, .button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.primary:hover, .button.primary:hover { background: var(--accent-dark); }
button.link { border: 0; background: none; padding: 0; color: var(--accent); }
button.danger { color: var(--error); }
button:disabled { opacity: .5; cursor: not-allowed; }
form.inline { display: inline; }
.actions { display: flex; gap: 12px; align-items: center; margin-top: 16px; }
.search { display: flex; gap: 8px; margin-bottom: 16px; }
.search input { margin: 0; }
table { width: 100%; border-collapse: collapse; background: var(--card); }
th, td { padding: 8px 10px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
tr.total td { font-weight: 600; }
.flash { padding: 10px 14px; border-radius: 6px; background: #e8f1fd; }
.error { color: var(--error); }
ul.error { padding-left: 20px; }
.notice { padding: 12px 16px; border-left: 4px solid var(--warn); background: #fff7e6; margin: 0 0 12px; }
.notice.info { border-color: var(--accent); background: #eef4fd; }
.empty { color: var(--muted); }
.client-name { color: var(--muted); margin: 0 0 8px; }
.steps { display: flex; gap: 8px; list-style: none; padding: 0; margin: 0 0 24px; flex-wrap: wrap; }
.steps a { display: block; padding: 8px 14px; border: 1px solid var(--line); border-radius: 999px; background: var(--card); color: var(--text); text-decoration: none; }
.steps a.current { border-color: var(--accent); color: var(--accent); font-weight: 600; }
.steps a.done::before { content: "✓ "; color: var(--ok); }
.review { overflow-x: auto; }
.review th { white-space: nowrap; }
.review td.num button { all: unset; cursor: pointer; }
.review td.corrected { background: #fff7e6; }
.review td.readonly { color: var(--muted); }
.review td.editing input { width: 9em; margin: 0; }
.footer { max-width: 1100px; margin: 0 auto 24px; padding: 0 24px; color: var(--muted); font-size: .85rem; }
.guide p, .guide li { max-width: 80ch; line-height: 1.5; }
.guide h2 { margin-top: 28px; }