:root {
  --bg: #f6f7f9; --surface: #fff; --text: #1b1f24; --muted: #5f6b7a; --line: #dfe3e8;
  --accent: #0b5cad; --accent-ink: #fff; --ok: #1a7f37; --urgent: #b42318; --urgent-bg: #fdecea; --ok-bg: #e7f5ec;
  --radius: 10px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111418; --surface: #1a1f25; --text: #e6e9ed; --muted: #9aa5b1; --line: #2c333b;
    --accent: #5aa2f0; --accent-ink: #0b1420; --ok: #4ac26b; --urgent: #ff8a80; --urgent-bg: #3a1d1b; --ok-bg: #16301f;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--accent); }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 16px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

.top { background: var(--surface); border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; justify-content: space-between; height: 56px; }
.brand { font-weight: 700; font-size: 1.15rem; text-decoration: none; color: var(--text); }
.top nav a { margin-left: 16px; text-decoration: none; }
main { padding: 24px 16px 48px; }
.foot { border-top: 1px solid var(--line); color: var(--muted); font-size: .85rem; padding: 20px 0 32px; }

h1 { font-size: 1.5rem; line-height: 1.3; margin: 0 0 12px; }
h2 { font-size: 1.15rem; margin: 32px 0 12px; }
h3 { font-size: 1rem; margin: 16px 0 6px; }
.muted { color: var(--muted); }
.note { color: var(--muted); font-size: .9rem; }
.pre { white-space: pre-line; }
.crumbs { font-size: .9rem; color: var(--muted); margin: 0 0 12px; }

/* Filtros */
.filters { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
.filters .f-q { grid-column: 1 / -1; }
.filters label { display: block; font-size: .85rem; font-weight: 600; margin-bottom: 4px; }
.filters input, .filters select { width: 100%; font: inherit; padding: 9px 10px; border: 1px solid var(--line);
  border-radius: 8px; background: var(--bg); color: var(--text); }
.filters .pair { display: flex; gap: 6px; }
.filters .f-go { display: flex; align-items: flex-end; }
button, .btn { font: inherit; font-weight: 600; background: var(--accent); color: var(--accent-ink); border: 0;
  border-radius: 8px; padding: 10px 18px; cursor: pointer; text-decoration: none; display: inline-block; }
.filters button { width: 100%; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

.results-head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; margin: 20px 0 8px; }
.results-head p { margin: 0; }
.sort a, .sort strong { margin-left: 8px; }
.empty { background: var(--surface); padding: 24px; border-radius: var(--radius); }

/* Tarjetas */
.cards { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; }
.card-title { font-weight: 600; text-decoration: none; color: var(--text); display: block; }
.card-title:hover { color: var(--accent); }
.card-buyer { font-size: .9rem; margin: 2px 0 8px; }
.card-buyer a { color: var(--muted); }
.card-meta { display: flex; flex-wrap: wrap; gap: 6px 14px; align-items: center; font-size: .88rem; color: var(--muted); }
.amount { font-weight: 700; color: var(--text); font-variant-numeric: tabular-nums; }
.badge { font-size: .8rem; font-weight: 600; padding: 2px 8px; border-radius: 999px; background: var(--bg); color: var(--muted); }
.badge.ok { background: var(--ok-bg); color: var(--ok); }
.badge.urgent { background: var(--urgent-bg); color: var(--urgent); }

.pager { display: flex; gap: 16px; justify-content: center; align-items: center; margin: 24px 0; }

/* Ficha */
.tender-status { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-bottom: 20px; }
.tender-status .btn { margin-left: auto; }
.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1px; margin: 0;
  background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.facts div { background: var(--surface); padding: 12px 14px; }
.facts dt { font-size: .8rem; color: var(--muted); }
.facts dd { margin: 2px 0 0; font-weight: 600; font-variant-numeric: tabular-nums; }
.tbl { width: 100%; border-collapse: collapse; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); font-size: .92rem; }
.tbl th, .tbl td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.tbl th { font-size: .8rem; color: var(--muted); font-weight: 600; }
.tbl .num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.tbl details { margin-top: 4px; font-size: .88rem; color: var(--muted); }
.docs { padding-left: 18px; }
.docs li { margin: 4px 0; }
.cols { display: grid; gap: 0 24px; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }

@media (max-width: 640px) {
  h1 { font-size: 1.25rem; }
  .tbl { display: block; overflow-x: auto; }
  .tender-status .btn { margin-left: 0; }
}

/* Cuentas y formularios */
.top nav { display: flex; align-items: center; }
.btn.small { padding: 6px 12px; font-size: .9rem; color: var(--accent-ink); }
.narrow { max-width: 440px; }
.form { display: grid; gap: 6px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
.form label { font-size: .9rem; font-weight: 600; margin-top: 8px; }
.form input[type=email], .form input[type=password] { font: inherit; padding: 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--text); }
.form .check { font-weight: 400; display: flex; gap: 8px; align-items: flex-start; }
.form button { margin-top: 12px; }
.alert { padding: 12px 14px; border-radius: 8px; }
.alert.ok { background: var(--ok-bg); color: var(--ok); }
.alert.error { background: var(--urgent-bg); color: var(--urgent); }
button.link { background: none; color: var(--accent); padding: 0; font-weight: 400; text-decoration: underline; }
.logout { margin-top: 32px; }
.alert-cta { display: flex; flex-wrap: wrap; gap: 8px 16px; align-items: center; margin: 12px 0 0; }
.premium-box { background: var(--surface); border: 1px dashed var(--accent); border-radius: var(--radius); padding: 16px; }
.summary h3 { margin-top: 18px; }
.foot-links { margin-top: 8px; }
.legal { max-width: 760px; }
.legal-nav { display: flex; flex-wrap: wrap; gap: 6px 16px; margin-bottom: 16px; font-size: .95rem; }
.legal-nav [aria-current] { font-weight: 700; color: var(--text); text-decoration: none; }
button.danger { background: var(--urgent); color: #fff; }