:root {
  --paper: #F8FAF7; --card: #FFFFFF; --ink: #1E2A28; --muted: #5C6B67;
  --accent: #17685A; --accent-soft: #E3EFEB; --amber: #A96A12; --amber-soft: #F7EEDF;
  --red: #A8352F; --red-soft: #F7E4E2; --line: #D8E0DC; --line-soft: #E7ECE9; --mono-bg: #EEF3F0;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font: 15px/1.6 "Public Sans", "Segoe UI", -apple-system, sans-serif;
}
a { color: var(--accent); }
h1, h2, h3 { font-family: Georgia, "Besley", serif; line-height: 1.2; margin: 0 0 .6rem; }
h1 { font-size: 1.7rem; } h2 { font-size: 1.25rem; margin-top: 2rem; }
.topbar {
  display: flex; align-items: center; gap: 1.4rem; flex-wrap: wrap;
  background: var(--card); border-bottom: 1px solid var(--line); padding: .7rem 1.4rem;
}
.topbar .brand { font-family: Georgia, serif; font-weight: 700; font-size: 1.15rem; color: var(--accent); text-decoration: none; }
.topbar nav { display: flex; gap: 1rem; flex-wrap: wrap; }
.topbar nav a { color: var(--muted); text-decoration: none; font-weight: 600; font-size: .88rem; }
.topbar nav a:hover, .topbar nav a:focus-visible { color: var(--accent); }
.topbar .who { margin-left: auto; color: var(--muted); font-size: .85rem; }
.wrap { max-width: 62rem; margin: 0 auto; padding: 1.8rem 1.4rem 4rem; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 1.2rem 1.4rem; margin: 1rem 0; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 8px; background: var(--card); margin: 1rem 0; }
table { border-collapse: collapse; width: 100%; font-size: .9rem; }
th, td { text-align: left; padding: .5rem .85rem; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
tr:last-child td { border-bottom: none; }
th { font-size: .7rem; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); white-space: nowrap; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.chip { display: inline-block; font-size: .72rem; font-weight: 700; padding: .1rem .6rem; border-radius: 999px; border: 1px solid var(--line); color: var(--muted); background: var(--card); white-space: nowrap; }
.chip.draft { color: var(--muted); }
.chip.submitted { background: var(--amber-soft); color: var(--amber); border-color: transparent; }
.chip.queried { background: var(--red-soft); color: var(--red); border-color: transparent; }
.chip.approved, .chip.paid { background: var(--accent-soft); color: var(--accent); border-color: transparent; }
.chip.in_run, .chip.exported, .chip.open { background: var(--mono-bg); color: var(--ink); border-color: transparent; }
.btn {
  display: inline-block; background: var(--accent); color: #fff; border: none; border-radius: 6px;
  padding: .45rem 1rem; font: 600 .88rem "Public Sans", sans-serif; cursor: pointer; text-decoration: none;
}
.btn:hover { filter: brightness(1.1); }
.btn.secondary { background: var(--card); color: var(--accent); border: 1px solid var(--accent); }
.btn.danger { background: var(--card); color: var(--red); border: 1px solid var(--red); }
.btn.small { padding: .2rem .6rem; font-size: .78rem; }
form.inline { display: inline; }
label { display: block; font-size: .75rem; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; color: var(--muted); margin: .7rem 0 .2rem; }
input, select, textarea {
  width: 100%; max-width: 26rem; padding: .45rem .6rem; border: 1px solid var(--line);
  border-radius: 6px; font: inherit; background: var(--card); color: var(--ink);
}
input:focus-visible, select:focus-visible, textarea:focus-visible, .btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.field-row { display: flex; gap: 1rem; flex-wrap: wrap; }
.field-row > div { flex: 1 1 12rem; }
.alert { border-left: 3px solid var(--red); background: var(--red-soft); color: var(--ink); padding: .7rem 1rem; border-radius: 0 6px 6px 0; margin: 1rem 0; font-size: .9rem; }
.warn { border-left: 3px solid var(--amber); background: var(--amber-soft); padding: .7rem 1rem; border-radius: 0 6px 6px 0; margin: 1rem 0; font-size: .9rem; }
.note { color: var(--muted); font-size: .85rem; }
.total-line { font-family: Georgia, serif; font-size: 1.3rem; }
.mono { font-family: "IBM Plex Mono", ui-monospace, monospace; font-size: .85em; }
.query-box { background: var(--red-soft); border-radius: 6px; padding: .4rem .7rem; font-size: .84rem; margin-top: .3rem; }
.login-box { max-width: 24rem; margin: 6rem auto; }
@media (max-width: 640px) {
  .topbar { gap: .8rem .9rem; padding: .7rem 1rem; }
  .wrap { padding: 1.2rem .9rem 3rem; }
  h1 { font-size: 1.35rem; }
  .btn { padding: .7rem 1.2rem; }           /* comfortable thumb targets */
  .btn.small { padding: .45rem .8rem; }
  input, select, textarea { max-width: none; font-size: 16px; }  /* stops iOS zoom-on-focus */
  .field-row > div { flex-basis: 100%; }

  /* Line tables become stacked cards on phones */
  table.lines, table.lines tbody { display: block; }
  table.lines tr { display: block; padding: .65rem .9rem; border-bottom: 1px solid var(--line); }
  table.lines tr:last-child { border-bottom: none; }
  table.lines tr:first-child { display: none; }   /* header row */
  table.lines td {
    display: flex; justify-content: space-between; align-items: baseline;
    gap: 1rem; border: none; padding: .18rem 0; text-align: right;
  }
  table.lines td:empty { display: none; }
  table.lines td::before {
    content: attr(data-label);
    font-size: .68rem; font-weight: 700; letter-spacing: .08em;
    text-transform: uppercase; color: var(--muted); text-align: left;
  }
  table.lines td[data-label=""]::before { content: none; }
  table.lines td[data-label=""] { justify-content: flex-end; }
}