:root {
  --bg: #f3f5f7; --surface: #ffffff; --ink: #121820; --muted: #5a6573; --rule: #d3d9e0;
  --accent: #1f5fbf; --accent-ink: #ffffff; --ok: #1d7a46; --warn: #a15c00; --bad: #b3261e;
  --mono: ui-monospace, "JetBrains Mono", "SFMono-Regular", Menlo, Consolas, monospace;
  --body: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0f141a; --surface: #161d25; --ink: #e6ebf1; --muted: #9aa6b4; --rule: #2a3440;
    --accent: #6ea2ff; --accent-ink: #0b1220; --ok: #5cc98d; --warn: #e0a54a; --bad: #ff8a80; color-scheme: dark; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 15px/1.55 var(--body); }
a { color: var(--accent); }
code, .num { font-family: var(--mono); font-variant-numeric: tabular-nums; }
h1 { font-size: 1.6rem; margin: 0 0 .6rem; text-wrap: balance; }
h2 { font-size: 1.15rem; margin: 1.6rem 0 .6rem; }
h3 { font-size: 1rem; margin: 0 0 .4rem; }
.muted { color: var(--muted); }
.lead { color: var(--muted); max-width: 70ch; }
.error { color: var(--bad); font-weight: 600; }
.ok { color: var(--ok); font-weight: 600; }
.note { color: var(--muted); font-size: .9rem; max-width: 70ch; }

.top { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; padding: 12px 16px;
  background: var(--surface); border-bottom: 1px solid var(--rule); }
.logo { font-weight: 700; letter-spacing: .12em; color: var(--ink); text-decoration: none; }
.top nav { display: flex; gap: 14px; flex-wrap: wrap; }
.top nav a { text-decoration: none; }
.logout { margin-left: auto; display: flex; gap: 10px; align-items: center; }
main { max-width: 1040px; margin: 0 auto; padding: 24px 16px 64px; }
main.narrow { max-width: 520px; }

.row-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px; }
.stack { display: grid; gap: 12px; max-width: 560px; }
.inline { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 6px 0; }
label { display: grid; gap: 4px; font-weight: 500; }
label.check { display: flex; gap: 8px; align-items: center; font-weight: 400; }
input, select { font: inherit; padding: 8px 10px; border: 1px solid var(--rule); border-radius: 6px;
  background: var(--surface); color: var(--ink); min-width: 0; }
input[type=file] { padding: 6px; }
button, .button { font: inherit; font-weight: 600; padding: 8px 14px; border-radius: 6px; border: 1px solid var(--accent);
  background: var(--accent); color: var(--accent-ink); cursor: pointer; text-decoration: none; display: inline-block; }
button.link { background: none; border: none; color: var(--accent); padding: 0; font-weight: 500; }
button.danger { background: var(--bad); border-color: var(--bad); color: #fff; }
button.primary { font-size: 1.05rem; padding: 10px 18px; }

.card { background: var(--surface); border: 1px solid var(--rule); border-radius: 10px; padding: 16px 18px; margin: 16px 0; }
.card.warn { border-color: var(--warn); }
.card h2 { margin-top: 0; }
.danger { margin-top: 40px; border-top: 1px solid var(--rule); padding-top: 8px; }
.badge { font-size: .8rem; padding: 3px 10px; border-radius: 999px; border: 1px solid var(--rule); background: var(--surface); }
.state-paid, .state-delivered, .state-accepted { border-color: var(--ok); color: var(--ok); }
.state-intake_rejected { border-color: var(--bad); color: var(--bad); }

.offers { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; }
.offer .big { font-size: 1.05rem; font-weight: 600; }
.offer .price { font-family: var(--mono); font-size: 1.3rem; margin: .2rem 0 .6rem; }

.table-wrap { overflow-x: auto; border: 1px solid var(--rule); border-radius: 8px; background: var(--surface); }
table { border-collapse: collapse; width: 100%; min-width: 520px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--rule); vertical-align: top; }
th { font-size: .8rem; color: var(--muted); font-weight: 600; letter-spacing: .03em; }
tr.total td { font-weight: 700; }
pre.legal { white-space: pre-wrap; background: var(--surface); border: 1px solid var(--rule); border-radius: 8px;
  padding: 14px; max-height: 320px; overflow: auto; font: 14px/1.5 var(--body); }
.secret { font-size: 1.1rem; letter-spacing: .08em; word-break: break-all; }
.steps li { margin-bottom: 8px; }

/* language menu (no script: a details element with links or submit buttons) */
.top .lang { position: relative; margin-left: auto; }
.top .lang + .logout { margin-left: 0; }
.lang summary { list-style: none; cursor: pointer; font: 600 .78rem var(--mono); letter-spacing: .06em; color: var(--muted);
  padding: 4px 9px; border: 1px solid var(--rule); border-radius: 999px; }
.lang summary::-webkit-details-marker { display: none; }
.lang[open] summary, .lang summary:hover { color: var(--ink); }
.lang-menu { position: absolute; right: 0; top: calc(100% + 6px); z-index: 10; display: grid; gap: 2px; min-width: 200px; padding: 6px;
  background: var(--surface); border: 1px solid var(--rule); border-radius: 8px; box-shadow: 0 12px 30px -18px rgba(0, 0, 0, .5); }
.lang-menu a, .lang-menu button.link { display: block; width: 100%; text-align: left; padding: 6px 8px; border-radius: 5px;
  text-decoration: none; color: var(--ink); font-weight: 400; }
.lang-menu a:hover, .lang-menu button.link:hover { background: var(--bg); }
.lang-menu .current { color: var(--accent); font-weight: 600; }
.lang-menu small { padding: 6px 8px 2px; max-width: 28ch; font-size: .78rem; line-height: 1.35; }