/* Ledger back office. Plain CSS, tokens first; light and dark from the system. */
:root {
  --bg: #f4f2ee;
  --surface: #ffffff;
  --surface-2: #f9f8f5;
  --line: #e3dfd7;
  --text: #1f1d1a;
  --muted: #6b665e;
  --accent: #1f5f5b;
  --accent-soft: #e2efed;
  --danger: #a12f2f;
  --danger-soft: #f7e3e1;
  --ok: #2f6b3a;
  --ok-soft: #e3f0e4;
  --warn: #8a5a12;
  --warn-soft: #f6ecd8;
  --radius-s: 6px;
  --radius-m: 10px;
  --shadow: 0 1px 2px rgb(31 29 26 / 6%), 0 4px 16px rgb(31 29 26 / 5%);
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161514;
    --surface: #1f1e1c;
    --surface-2: #262522;
    --line: #36342f;
    --text: #ece9e3;
    --muted: #a39d93;
    --accent: #6fbdb5;
    --accent-soft: #1d3331;
    --danger: #e08a84;
    --danger-soft: #3a2220;
    --ok: #8cc79a;
    --ok-soft: #1f3324;
    --warn: #e0b46a;
    --warn-soft: #3a2f1c;
    --shadow: none;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 14px/1.5 var(--font); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 22px; margin: 0 0 4px; letter-spacing: -0.01em; }
h2 { font-size: 15px; margin: 24px 0 8px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; }

.shell { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.nav { background: var(--surface); border-right: 1px solid var(--line); padding: 20px 12px; display: flex; flex-direction: column; gap: 2px; position: sticky; top: 0; height: 100vh; }
.nav .brand { font-weight: 700; font-size: 16px; padding: 4px 10px 18px; }
.nav .brand small { display: block; font-weight: 400; color: var(--muted); font-size: 12px; }
.nav a { color: var(--text); padding: 7px 10px; border-radius: var(--radius-s); display: flex; justify-content: space-between; }
.nav a:hover { background: var(--surface-2); text-decoration: none; }
.nav a.on { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.nav .badge { background: var(--warn-soft); color: var(--warn); border-radius: 99px; padding: 0 8px; font-size: 12px; }
.nav .who { margin-top: auto; padding: 12px 10px 0; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.main { padding: 28px 32px 64px; max-width: 1200px; width: 100%; }
.head { display: flex; align-items: end; justify-content: space-between; gap: 16px; margin-bottom: 18px; flex-wrap: wrap; }
.sub { color: var(--muted); }

.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-m); box-shadow: var(--shadow); padding: 18px; }
.grid { display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
.stat .label { color: var(--muted); font-size: 12px; }
.stat .value { font-size: 24px; font-weight: 650; font-variant-numeric: tabular-nums; margin-top: 2px; }
.stat.alert .value { color: var(--danger); }

table { width: 100%; border-collapse: collapse; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-m); overflow: hidden; }
th, td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: var(--surface-2); color: var(--muted); font-weight: 600; font-size: 12px; }
tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: var(--surface-2); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.code { font-family: var(--mono); font-size: 12px; color: var(--muted); }
.table-wrap { overflow-x: auto; }

.tag { display: inline-block; padding: 1px 8px; border-radius: 99px; font-size: 12px; background: var(--surface-2); color: var(--muted); border: 1px solid var(--line); }
.tag.open { background: var(--accent-soft); color: var(--accent); border-color: transparent; }
.tag.closed { background: var(--ok-soft); color: var(--ok); border-color: transparent; }
.tag.cancelled, .tag.rejected { background: var(--danger-soft); color: var(--danger); border-color: transparent; }
.tag.pending { background: var(--warn-soft); color: var(--warn); border-color: transparent; }

form.inline { display: inline; }
.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: end; }
.fields { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px 16px; }
label { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--muted); }
label.check { flex-direction: row; align-items: center; gap: 8px; font-size: 14px; color: var(--text); }
input, select, textarea { font: inherit; color: var(--text); background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-s); padding: 7px 10px; min-width: 0; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: transparent; }
input[type="number"] { font-variant-numeric: tabular-nums; }
button, .button { font: inherit; font-weight: 600; border: 1px solid var(--accent); background: var(--accent); color: var(--surface); border-radius: var(--radius-s); padding: 7px 14px; cursor: pointer; display: inline-block; }
button:hover, .button:hover { filter: brightness(1.08); text-decoration: none; }
button.quiet, .button.quiet { background: transparent; color: var(--accent); }
button.danger { background: transparent; color: var(--danger); border-color: var(--danger); }
.actions { display: flex; gap: 8px; flex-wrap: wrap; }

.flash { padding: 10px 14px; border-radius: var(--radius-s); margin-bottom: 16px; background: var(--ok-soft); color: var(--ok); }
.flash.error { background: var(--danger-soft); color: var(--danger); }
.empty { color: var(--muted); padding: 24px; text-align: center; }

.login { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.login .card { width: 100%; max-width: 380px; display: flex; flex-direction: column; gap: 14px; }

@media (max-width: 760px) {
  .shell { grid-template-columns: 1fr; }
  .nav { position: static; height: auto; flex-direction: row; flex-wrap: wrap; border-right: 0; border-bottom: 1px solid var(--line); }
  .nav .brand, .nav .who { width: 100%; }
  .main { padding: 20px 16px 48px; }
}

.tabs { display: flex; gap: 4px; margin-bottom: 14px; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.tabs a { padding: 8px 14px; color: var(--muted); border-bottom: 2px solid transparent; margin-bottom: -1px; }
.tabs a:hover { color: var(--text); text-decoration: none; }
.tabs a.on { color: var(--accent); border-bottom-color: var(--accent); font-weight: 600; }
.report-filter { margin-bottom: 16px; }
.report-stats { margin-bottom: 16px; }