:root{--fondo: #f4f6f9;--tarjeta: #fff;--texto: #1c2430;--suave: #5b6676;--borde: #d9dee5;--primario: #1f3a5f;--ok: #1d7a46;--error: #b42318;--aviso: #9a6700;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--texto);background:var(--fondo)}@media(prefers-color-scheme:dark){:root{--fondo: #11161d;--tarjeta: #1a212b;--texto: #e6eaf0;--suave: #9aa5b4;--borde: #2c3542;--primario: #7fa7d9}}*{box-sizing:border-box}body{margin:0}h1,h2{margin:0 0 12px;font-size:1.15rem}.app{min-height:100dvh;display:flex;flex-direction:column}header{display:flex;gap:8px;justify-content:space-between;padding:calc(env(safe-area-inset-top) + 10px) 12px 10px;background:var(--primario)}header select{max-width:60%}main{flex:1;padding:12px;max-width:760px;width:100%;margin:0 auto}nav{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--borde);background:var(--tarjeta);padding-bottom:env(safe-area-inset-bottom);position:sticky;bottom:0}nav button{background:none;color:var(--suave);border-radius:0;padding:14px 0}nav button.activo{color:var(--primario);font-weight:600}.tarjeta{background:var(--tarjeta);border:1px solid var(--borde);border-radius:12px;padding:16px;display:flex;flex-direction:column;gap:12px}label{display:flex;flex-direction:column;gap:4px;font-size:.85rem;color:var(--suave)}input,select{font:inherit;font-size:16px;padding:10px;border:1px solid var(--borde);border-radius:8px;background:var(--tarjeta);color:var(--texto);min-width:0}button{font:inherit;padding:11px 16px;border:0;border-radius:8px;background:var(--primario);color:#fff;cursor:pointer}button:disabled{opacity:.5;cursor:default}button.secundario{background:transparent;color:inherit;border:1px solid var(--borde)}header button.secundario{color:#fff;border-color:#fff5}.fila{display:flex;gap:10px;flex-wrap:wrap;align-items:end}.fila>label{flex:1 1 120px}.fila.entre{justify-content:space-between;align-items:center}.crece{flex:1}.segmentos{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(0,1fr);gap:4px;background:var(--fondo);padding:4px;border-radius:10px}.segmentos button{background:none;color:var(--suave);padding:8px 4px}.segmentos button.activo{background:var(--tarjeta);color:var(--texto);font-weight:600}.lineas{width:100%;border-collapse:collapse}.lineas td,.lineas th{padding:4px;text-align:left;font-size:.85rem}.lineas select{width:100%}.lineas input{width:100%;text-align:right}.num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}.neg{color:var(--error)}.ok{color:var(--ok);margin:0}.aviso{color:var(--aviso);margin:0}.error{color:var(--error);margin:0}.resultado{width:100%;border-collapse:collapse}.resultado td,.resultado th{padding:8px 0;border-bottom:1px solid var(--borde);text-align:left}.lista{list-style:none;padding:0;margin:0}.lista li{display:flex;gap:10px;padding:9px 0;border-bottom:1px solid var(--borde);font-size:.9rem}.lista li.anulado{text-decoration:line-through;color:var(--suave)}.plan li.grupo{font-weight:600}.codigo{color:var(--suave);min-width:64px;font-variant-numeric:tabular-nums}.etiqueta{font-size:.75rem;border:1px solid var(--borde);border-radius:6px;padding:0 6px}.login,.centro{min-height:100dvh;display:grid;place-items:center;padding:16px}.login .tarjeta{width:min(380px,100%)}.enrolar{text-align:center;font-size:.9rem}.enrolar img{background:#fff;padding:8px;border-radius:8px}.secreto code{word-break:break-all}.suave{color:var(--suave);font-size:.85rem;margin:0}.banner{border-color:var(--aviso);margin-bottom:12px}.banner p{margin:0}.grupo-saldos{border:1px solid var(--borde);border-radius:10px;padding:8px 12px;margin:0;display:flex;flex-direction:column;gap:6px}.grupo-saldos legend{font-weight:600;color:var(--texto);padding:0 4px}label.saldo{flex-direction:row;align-items:center;gap:10px;color:var(--texto);font-size:.9rem}label.saldo input{width:11rem;text-align:right}input[aria-invalid=true]{border-color:var(--error)}details summary{cursor:pointer;color:var(--suave)}details[open]{display:flex;flex-direction:column;gap:8px}.saldos{width:100%;border-collapse:collapse;font-size:.88rem}.saldos th{text-align:left;font-weight:600;color:var(--suave);padding:6px 4px;border-bottom:1px solid var(--borde)}.saldos td{padding:6px 4px;border-bottom:1px solid var(--borde);vertical-align:top}.saldos tr.grupo td{font-weight:600}.saldos small{color:var(--suave);font-weight:400}.saldos tr.ajuste td{background:var(--fondo);padding:10px}.saldos tr.ajuste .fila{margin-bottom:8px}button.enlace{background:none;color:var(--primario);padding:0 0 0 8px;font-size:.8rem;text-decoration:underline}label.check,label.saldo-fecha{flex-direction:row;align-items:center;gap:6px}