:root { --fg: #1c1c1e; --bg: #fafaf8; --card: #fff; --line: #e2e2dc; --accent: #3b3bd6; --bad: #b3261e; --ok: #1e7a3c; }
* { box-sizing: border-box; }
body { margin: 0; font: 15px/1.5 -apple-system, system-ui, sans-serif; color: var(--fg); background: var(--bg); }
header { display: flex; gap: 24px; align-items: center; flex-wrap: wrap; padding: 10px 24px; background: var(--card); border-bottom: 1px solid var(--line); }
.marca { font-weight: 700; font-size: 18px; color: var(--accent); text-decoration: none; }
nav { display: flex; gap: 16px; flex: 1; flex-wrap: wrap; }
a { color: var(--accent); }
main { max-width: 980px; margin: 24px auto; padding: 0 16px; }
h1 { font-size: 24px; margin: 0 0 16px; }
h2 { font-size: 17px; margin: 28px 0 8px; }
.tabla { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--line); }
th, td { text-align: left; padding: 7px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .04em; color: #666; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
form.fila { display: flex; gap: 8px; flex-wrap: wrap; align-items: end; margin: 8px 0; }
form.col { display: grid; gap: 12px; max-width: 460px; }
label { display: grid; gap: 3px; font-size: 13px; color: #555; }
input, select, textarea { font: inherit; padding: 6px 8px; border: 1px solid #bbb; border-radius: 6px; background: #fff; }
button { font: inherit; padding: 6px 14px; border: 0; border-radius: 6px; background: var(--accent); color: #fff; cursor: pointer; }
button.sec { background: #e9e9e4; color: var(--fg); }
button.peligro { background: var(--bad); }
button.link { background: none; color: var(--accent); padding: 0; }
.flash { padding: 8px 12px; border-radius: 6px; margin: 0 0 12px; }
.flash.ok { background: #e3f4e8; color: var(--ok); }
.flash.error { background: #fbe4e2; color: var(--bad); }
.tarjetas { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; }
.tarjeta { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 12px 16px; }
.tarjeta b { display: block; font-size: 24px; }
.estado { font-size: 12px; padding: 1px 8px; border-radius: 10px; background: #eee; }
.estado.vencida { background: #fbe4e2; color: var(--bad); }
.estado.pagada { background: #e3f4e8; color: var(--ok); }
.estado.anulada { background: #ddd; color: #666; text-decoration: line-through; }
.baja { color: #888; }
.pendiente-def { background: #fff3c4; padding: 0 4px; border-radius: 3px; }
.salir { display: flex; gap: 8px; font-size: 13px; align-items: center; }
.barra { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin-bottom: 12px; }
pre { white-space: pre-wrap; word-break: break-all; font-size: 12px; margin: 0; }
code { word-break: break-all; }
.login { max-width: 320px; margin: 80px auto; }
@media (max-width: 600px) {
  header { gap: 8px 16px; padding: 10px 16px; justify-content: space-between; }
  nav { order: 3; flex-basis: 100%; gap: 12px; }
  .login { margin-top: 40px; }
}