:root{
  --bg:#f4f5f8; --surface:#fff; --border:#e3e6ec; --text:#151a23; --text-2:#5b6474; --text-3:#8c94a3;
  --brand:#067a59; --brand-ink:#fff; --brand-soft:#e2f4ed; --error:#c81e1e; --warn:#b45309;
  --r:12px; --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
@media (prefers-color-scheme:dark){
  :root{ --bg:#0f1218; --surface:#171b23; --border:#272d39; --text:#e8eaef; --text-2:#a2abbb; --text-3:#727c8e;
         --brand:#1fbf8f; --brand-ink:#03140e; --brand-soft:#0d2a21; --error:#f87171; --warn:#fbbf24; }
}
*{box-sizing:border-box}
[hidden]{display:none !important}
body{margin:0;background:var(--bg);color:var(--text);
  font:15px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif}
h1,h2{margin:0;line-height:1.25}
h2{font-size:16px}
input,select,textarea{font:inherit;color:var(--text);background:var(--surface);width:100%;
  border:1px solid var(--border);border-radius:8px;padding:8px 10px}
input:focus,select:focus,textarea:focus{outline:2px solid var(--brand);outline-offset:-1px}
label{display:flex;flex-direction:column;gap:4px;font-size:12px;font-weight:650;color:var(--text-2)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;cursor:pointer;
  border:1px solid var(--border);background:var(--surface);color:var(--text);
  padding:7px 13px;border-radius:8px;font:inherit;font-size:13.5px;font-weight:600;text-decoration:none}
.btn:hover{border-color:var(--text-3)}
.btn.primario{background:var(--brand);border-color:var(--brand);color:var(--brand-ink)}
.btn.peligro{color:var(--error)}
.btn.chico{padding:4px 9px;font-size:12.5px}
.error{color:var(--error);font-weight:600;font-size:13px;margin:0}

.entrar{min-height:100vh;display:grid;place-items:center;padding:16px}
.caja{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);padding:24px;
  width:100%;max-width:340px;display:flex;flex-direction:column;gap:12px}
.caja p{margin:0;color:var(--text-2);font-size:13.5px}
.caja.ancha{max-width:560px}

.barra{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:14px 16px;
  background:var(--surface);border-bottom:1px solid var(--border)}
.barra h1{font-size:18px}
.barra small{font-size:12px;color:var(--text-3);font-weight:500;margin-left:6px}
.espacio{flex:1}
main{max-width:1200px;margin:0 auto;padding:16px}

.cifras{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:16px}
.cifra{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);padding:12px 16px;min-width:140px}
.cifra span{display:block;font-size:11.5px;font-weight:650;color:var(--text-3);text-transform:uppercase;letter-spacing:.04em}
.cifra b{font-size:22px}

.rejilla{display:grid;grid-template-columns:340px 1fr;gap:16px;align-items:start}
@media (max-width:860px){ .rejilla{grid-template-columns:1fr} }
.tarjeta{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);padding:18px;
  display:flex;flex-direction:column;gap:12px;min-width:0}
.dos{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.cabeza{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.cabeza h2{flex:1}
.cabeza input{max-width:340px}

.tabla-caja{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:13.5px}
th{text-align:left;font-size:11.5px;color:var(--text-3);font-weight:650;text-transform:uppercase;letter-spacing:.04em}
th,td{padding:8px 6px;border-bottom:1px solid var(--border);white-space:nowrap}
td.comprador{white-space:normal;min-width:140px}
td small{display:block;color:var(--text-3);font-size:12px}
.clave{font-family:var(--mono);font-weight:600;letter-spacing:.02em}
.anulada{color:var(--error);font-size:11px;font-weight:700;text-transform:uppercase;margin-left:6px}
.vacio{color:var(--text-3);text-align:center;padding:24px 0;margin:0}

.fondo{position:fixed;inset:0;background:rgba(9,12,18,.55);display:flex;align-items:flex-start;
  justify-content:center;padding:6vh 16px;overflow-y:auto;z-index:10}
.clave-grande{font-family:var(--mono);font-size:24px;font-weight:700;text-align:center;letter-spacing:.04em;
  background:var(--brand-soft);color:var(--brand);border-radius:10px;padding:14px;margin:4px 0;word-break:break-all}
.acciones{display:flex;gap:8px;flex-wrap:wrap}
.datos{display:grid;grid-template-columns:auto 1fr;gap:4px 14px;font-size:13.5px;margin:0}
.datos dt{color:var(--text-3)}
.datos dd{margin:0;word-break:break-word}
.act{display:flex;align-items:center;gap:10px;padding:8px 0;border-bottom:1px solid var(--border);font-size:13.5px}
.act div{flex:1;min-width:0}
.act small{display:block;color:var(--text-3);font-size:12px}
.act.liberada{opacity:.55}

#aviso{position:fixed;left:50%;bottom:20px;transform:translateX(-50%);background:var(--text);color:var(--surface);
  padding:10px 16px;border-radius:999px;font-weight:600;font-size:13.5px;z-index:20;max-width:calc(100% - 32px)}