:root {
  --azul: #002c5f; --azul2: #0b3d7a; --dorado: #b89047; --dorado2: #e2c88f;
  --texto: #0f172a; --suave: #64748b; --borde: #dbe2ec; --fondo: #eef2f8; --blanco: #fff;
  --ok: #047857; --error: #b91c1c; --sombra: 0 24px 60px -20px rgba(0, 44, 95, .35);
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { font-family: Montserrat, "Segoe UI", Arial, sans-serif; color: var(--texto); background: var(--fondo); min-height: 100vh; display: flex; flex-direction: column; -webkit-font-smoothing: antialiased; }
.fondo { position: fixed; inset: 0; z-index: -1; background:
  radial-gradient(1200px 600px at -10% -10%, rgba(184, 144, 71, .18), transparent 60%),
  radial-gradient(900px 600px at 110% 10%, rgba(11, 61, 122, .22), transparent 60%),
  linear-gradient(160deg, #f7f9fc 0%, #e8eef7 100%); }
.pagina { width: 100%; max-width: 1120px; margin: 0 auto; padding: 48px 20px 24px; display: grid; grid-template-columns: 1fr 1.1fr; gap: 48px; align-items: start; flex: 1; }

/* ---------- Columna de presentacion ---------- */
.intro { padding-top: 12px; }
.logo { width: 210px; height: auto; display: block; margin-bottom: 28px; }
.etiqueta { margin: 0; font-size: 12px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--dorado); }
.intro h1 { margin: 8px 0 12px; font-size: clamp(28px, 3.4vw, 40px); line-height: 1.12; font-weight: 800; color: var(--azul); letter-spacing: -.01em; }
.bajada { margin: 0 0 28px; color: #334155; font-size: 16px; line-height: 1.6; max-width: 46ch; }
.pasos { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.pasos li { display: flex; gap: 14px; align-items: flex-start; background: rgba(255, 255, 255, .7); border: 1px solid rgba(219, 226, 236, .8); border-radius: 14px; padding: 14px 16px; backdrop-filter: blur(6px); }
.pasos .num { flex: none; width: 32px; height: 32px; border-radius: 10px; display: grid; place-items: center; font-weight: 800; color: var(--blanco); background: linear-gradient(135deg, var(--azul), var(--azul2)); box-shadow: 0 6px 14px -6px rgba(0, 44, 95, .6); }
.pasos strong { display: block; font-size: 14.5px; color: var(--azul); }
.pasos small { display: block; color: var(--suave); font-size: 13px; margin-top: 2px; }
.nota-intro { margin: 22px 0 0; font-size: 13px; color: var(--suave); border-left: 3px solid var(--dorado); padding: 4px 0 4px 12px; }

/* ---------- Tarjeta ---------- */
.tarjeta { position: relative; background: var(--blanco); border-radius: 22px; box-shadow: var(--sombra); overflow: hidden; }
.tarjeta::before { content: ""; display: block; height: 6px; background: linear-gradient(90deg, var(--azul), var(--azul2) 60%, var(--dorado)); }
form, .exito { padding: 28px 32px 30px; }
.tarjeta-cab h2 { margin: 0; font-size: 20px; color: var(--azul); font-weight: 800; }
.tarjeta-cab p { margin: 4px 0 22px; color: var(--suave); font-size: 13px; }
.req { color: var(--error); }
.opcional { font-weight: 600; font-size: 11px; color: var(--suave); background: #f1f5f9; border-radius: 999px; padding: 2px 8px; margin-left: 4px; }

.campo { margin-bottom: 18px; position: relative; }
.campo > label, .etq { display: flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 700; color: #1e293b; margin-bottom: 7px; }
.control { position: relative; }
.control svg { position: absolute; left: 13px; top: 50%; width: 18px; height: 18px; transform: translateY(-50%); fill: #94a3b8; pointer-events: none; transition: fill .2s; }
.control input { width: 100%; height: 48px; padding: 0 14px 0 42px; border: 1.5px solid var(--borde); border-radius: 12px; font: inherit; font-size: 15px; color: var(--texto); background: #fbfcfe; transition: border-color .2s, box-shadow .2s, background .2s; }
.control input::placeholder { color: #a3afc2; }
.control input:focus { outline: none; border-color: var(--azul2); background: var(--blanco); box-shadow: 0 0 0 4px rgba(11, 61, 122, .12); }
.control:focus-within svg { fill: var(--azul2); }
.campo.invalido .control input { border-color: var(--error); box-shadow: 0 0 0 4px rgba(185, 28, 28, .08); }
.pista { display: block; margin-top: 6px; font-size: 12px; color: var(--suave); }
.error { display: block; min-height: 0; margin-top: 5px; font-size: 12px; font-weight: 600; color: var(--error); }
.error:empty { display: none; }
.fila2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

.ayuda { width: 20px; height: 20px; border-radius: 50%; border: none; background: var(--azul); color: var(--blanco); font: 700 12px Montserrat, sans-serif; cursor: pointer; display: inline-grid; place-items: center; }
.ayuda:focus-visible { outline: 3px solid var(--dorado2); }
.globo { position: absolute; z-index: 5; top: 84px; left: 0; background: var(--blanco); border: 1px solid var(--borde); border-radius: 14px; box-shadow: 0 18px 40px -12px rgba(15, 23, 42, .3); padding: 12px; max-width: 330px; }
.globo p { margin: 0 0 8px; font-size: 12.5px; color: #334155; font-style: italic; }
.globo img { width: 100%; height: auto; border-radius: 8px; display: block; }

.segmento { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; background: #f1f5f9; border-radius: 12px; padding: 4px; margin-bottom: 10px; }
.segmento label { position: relative; cursor: pointer; }
.segmento input { position: absolute; opacity: 0; pointer-events: none; }
.segmento span { display: block; text-align: center; padding: 9px 6px; border-radius: 9px; font-size: 13px; font-weight: 700; color: #475569; transition: all .2s; }
.segmento input:checked + span { background: var(--blanco); color: var(--azul); box-shadow: 0 2px 8px rgba(15, 23, 42, .12); }
.segmento input:focus-visible + span { outline: 2px solid var(--azul2); }

.trampa { position: absolute; left: -10000px; top: auto; width: 1px; height: 1px; overflow: hidden; }
.acepto { display: flex; gap: 10px; align-items: flex-start; font-size: 12.5px; color: #475569; margin: 4px 0 4px; cursor: pointer; line-height: 1.5; }
.acepto input { margin-top: 3px; width: 16px; height: 16px; accent-color: var(--azul); flex: none; }

.alerta { margin: 14px 0 0; padding: 12px 14px; border-radius: 12px; font-size: 13px; font-weight: 600; background: #fef2f2; color: var(--error); border: 1px solid #fecaca; }
.alerta.info { background: #eff6ff; color: #1d4ed8; border-color: #bfdbfe; }

.boton { position: relative; width: 100%; height: 52px; margin-top: 18px; border: none; border-radius: 14px; cursor: pointer; font: 700 15.5px Montserrat, sans-serif; letter-spacing: .02em; color: var(--blanco); background: linear-gradient(135deg, var(--azul) 0%, var(--azul2) 100%); box-shadow: 0 14px 26px -12px rgba(0, 44, 95, .7); transition: transform .15s, box-shadow .2s, opacity .2s; }
.boton:hover { transform: translateY(-1px); box-shadow: 0 18px 30px -12px rgba(0, 44, 95, .75); }
.boton:active { transform: translateY(0); }
.boton:focus-visible { outline: 3px solid var(--dorado2); outline-offset: 2px; }
.boton[disabled] { opacity: .75; cursor: progress; transform: none; }
.boton .spinner { display: none; position: absolute; right: 18px; top: 50%; width: 20px; height: 20px; margin-top: -10px; border: 2.5px solid rgba(255, 255, 255, .35); border-top-color: var(--blanco); border-radius: 50%; animation: giro .8s linear infinite; }
.boton.cargando .spinner { display: block; }
.boton.secundario { background: var(--blanco); color: var(--azul); border: 1.5px solid var(--borde); box-shadow: none; }
@keyframes giro { to { transform: rotate(360deg); } }
.seguridad { display: flex; align-items: center; justify-content: center; gap: 6px; margin: 12px 0 0; font-size: 11.5px; color: var(--suave); }
.seguridad svg { width: 14px; height: 14px; fill: #94a3b8; }
.seguridad.listo svg { fill: var(--ok); }

/* ---------- Exito ---------- */
.exito { text-align: center; padding-top: 40px; }
.check svg { width: 76px; height: 76px; }
.check circle { fill: none; stroke: var(--ok); stroke-width: 3; stroke-dasharray: 160; stroke-dashoffset: 160; animation: trazo .7s ease forwards; }
.check path { fill: none; stroke: var(--ok); stroke-width: 4; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 40; stroke-dashoffset: 40; animation: trazo .4s .55s ease forwards; }
@keyframes trazo { to { stroke-dashoffset: 0; } }
.exito h2 { margin: 14px 0 6px; color: var(--azul); font-size: 24px; font-weight: 800; }
.exito > p { margin: 0; color: var(--suave); }
.ticket { margin: 8px auto 6px !important; display: inline-block; font-size: 22px; font-weight: 800; letter-spacing: .06em; color: var(--azul) !important; background: linear-gradient(135deg, #f8fafc, #eef2f8); border: 1.5px dashed var(--dorado); border-radius: 12px; padding: 10px 18px; }
.detalle { font-size: 13.5px; margin-top: 8px !important; }
.sig { text-align: left; margin: 22px 0 6px; padding: 16px 18px 16px 34px; background: #f8fafc; border-radius: 14px; font-size: 13px; color: #334155; line-height: 1.55; }
.sig li + li { margin-top: 6px; }

.pie { text-align: center; font-size: 12px; color: var(--suave); padding: 16px 20px 26px; }

@media (max-width: 900px) {
  .pagina { grid-template-columns: 1fr; gap: 26px; padding-top: 28px; }
  .intro { text-align: center; }
  .logo { margin: 0 auto 20px; width: 180px; }
  .bajada { margin-left: auto; margin-right: auto; }
  .pasos { text-align: left; }
  .nota-intro { text-align: left; }
}
@media (max-width: 520px) {
  .pagina { padding: 20px 16px; }
  form, .exito { padding: 22px 18px 24px; }
  .fila2 { grid-template-columns: 1fr; gap: 0; }
  .segmento span { font-size: 12px; }
  .pasos li { padding: 12px; }
}
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; } }
/* Flecha del globo apuntando al campo del recibo (el globo queda debajo del campo y no tapa lo que se escribe) */
.globo::before { content: ""; position: absolute; top: -7px; left: 22px; width: 12px; height: 12px; background: var(--blanco); border-left: 1px solid var(--borde); border-top: 1px solid var(--borde); transform: rotate(45deg); }