/* HF464 · Aislado de las tarjetas de Cartera y Finanzas. */
.billing-card{max-width:920px}.billing-card h3{font-size:18px}.billing-sum{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin:12px 0}.billing-sum>div{padding:11px;background:#142841;border:1px solid #28415e;border-radius:10px;min-width:0}.billing-sum small{display:block;font-size:11px;color:#a9bdd4}.billing-sum strong{display:block;font-size:16px;overflow-wrap:anywhere;margin-top:3px}.billing-warning{border:1px solid #ad8542;background:#392f20;border-radius:8px;padding:10px;font-size:13px}.billing-installments{display:grid;gap:6px;max-height:45vh;overflow-y:auto;margin:10px 0}.billing-installment{border:1px solid #26405c;background:#0c1d35;border-radius:10px;padding:10px;display:flex;gap:8px;align-items:center;justify-content:space-between}.billing-installment small{display:block;color:#b6c8de;margin-top:4px}.billing-unpaid{color:#fed18e}.billing-form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.billing-form .billing-check,.billing-form>p,.billing-form>button{grid-column:1/-1}.billing-check{flex-direction:row;gap:10px;align-items:center}.billing-check input{width:18px;min-height:18px}.billing-modal{width:min(760px,95vw);max-height:88vh;overflow-y:auto}.billing-blocked{width:min(680px,95vw);max-height:95vh;overflow-y:auto}.billing-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}@media(max-width:700px){.billing-sum{grid-template-columns:repeat(2,minmax(0,1fr))}.billing-form{grid-template-columns:1fr}.billing-modal{padding:14px}.billing-installment{flex-wrap:wrap}.billing-installment button{width:100%}}@media(max-width:375px){.billing-sum strong{font-size:13px}}

/* HF466: mensajes de mensualidad, sin desplazar los controles en móvil. */
.billing-message-box{margin-top:16px;border:1px solid rgba(70,211,193,.35);background:rgba(4,29,46,.35);border-radius:12px;padding:13px;display:grid;gap:9px;min-width:0}
.billing-message-box h3{margin:0;font-size:1rem}.billing-message-box p{margin:0}
.billing-message-box label{display:grid;gap:5px;min-width:0;font-size:.85rem}
.billing-message-box select,.billing-message-box textarea{box-sizing:border-box;width:100%;max-width:100%;min-width:0;border-radius:9px;border:1px solid #315676;background:#081a30;color:#fff;padding:10px;font:inherit}
.billing-message-box textarea{resize:vertical;line-height:1.5;max-height:220px;min-height:110px}
.billing-message-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
.billing-message-actions button{min-width:0;white-space:normal;font-size:.84rem}
@media(max-width:420px){.billing-message-box{padding:10px}.billing-message-actions button{padding:10px 6px}}