:root {
  --fondo: #0a0e23; --panel: #121733; --panel-2: #181f42; --borde: #2a3260; --texto: #f2f5fd; --suave: #aab4d6;
  --cian: #22d3ee; --violeta: #8b5cf6; --oro: #f5b83d; --verde: #34d399; --rojo: #fda4a4;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--fondo); color: var(--texto);
  font: 16px/1.6 "Segoe UI", system-ui, -apple-system, sans-serif;
  background-image: radial-gradient(900px 520px at 75% -80px, rgba(139, 92, 246, .32), transparent), radial-gradient(700px 480px at 5% 120px, rgba(34, 211, 238, .13), transparent);
  background-repeat: no-repeat;
}
a { color: var(--cian); }
h1, h2, h3 { line-height: 1.12; margin: 0; letter-spacing: -.02em; }
.oculto { display: none !important; }
:focus-visible { outline: 2px solid var(--cian); outline-offset: 2px; }

.cabecera { display: flex; align-items: center; gap: 24px; max-width: 1180px; margin: 0 auto; padding: 16px 20px; }
.marca { display: flex; align-items: center; color: var(--texto); font-size: 1.15rem; font-weight: 700; font-style: italic; text-decoration: none; }
.marca img { margin-right: 10px; }
.marca span { color: var(--cian); }
.marca b { color: var(--oro); }
.cabecera nav { display: flex; gap: 22px; flex: 1; }
.cabecera nav a, .enlace-cuenta { color: var(--suave); text-decoration: none; font-size: .94rem; }
.cabecera nav a:hover, .enlace-cuenta:hover { color: var(--texto); }

.boton { display: inline-block; padding: 12px 22px; border: 1px solid transparent; border-radius: 12px; font: inherit; font-weight: 600; text-align: center; text-decoration: none; cursor: pointer; }
.boton.claro { color: #0a0e23; background: #fff; }
.boton.claro:hover { background: #dbe6ff; }
.boton.borde { color: var(--texto); background: transparent; border-color: var(--borde); }
.boton.borde:hover { border-color: var(--cian); }
.boton.pequeno { padding: 8px 14px; font-size: .9rem; }
.boton:disabled { opacity: .6; cursor: wait; }

main { max-width: 1180px; margin: 0 auto; padding: 0 20px; }
.hero { display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center; padding: 72px 0 88px; }
.etiqueta { display: inline-flex; align-items: center; gap: 8px; margin: 0 0 18px; padding: 5px 13px; color: #cfc2ff; font-size: .85rem; background: rgba(139, 92, 246, .16); border: 1px solid rgba(139, 92, 246, .5); border-radius: 99px; }
.etiqueta i { width: 7px; height: 7px; border-radius: 50%; background: var(--cian); }
h1 { font-size: clamp(2.5rem, 5.4vw, 4.2rem); font-weight: 800; }
h1 em { font-style: normal; background: linear-gradient(90deg, var(--cian), var(--violeta)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.entrada { margin: 22px 0 28px; max-width: 34rem; color: var(--suave); font-size: 1.14rem; }
.acciones { display: flex; flex-wrap: wrap; gap: 12px; }
.sellos { display: flex; flex-wrap: wrap; gap: 18px; margin: 26px 0 0; padding: 0; list-style: none; color: var(--suave); font-size: .9rem; }
.sellos li::before { content: "✓"; margin-right: 6px; color: var(--verde); font-weight: 700; }

.ventana { padding: 0 0 6px; background: var(--panel); border: 1px solid var(--borde); border-radius: 18px; box-shadow: 0 30px 70px rgba(4, 6, 24, .7); overflow: hidden; }
.ventana-barra { display: flex; align-items: center; gap: 6px; padding: 12px 16px; color: var(--suave); font-size: .78rem; background: #0e1330; border-bottom: 1px solid var(--borde); }
.ventana-barra u { width: 9px; height: 9px; border-radius: 50%; background: var(--borde); }
.ventana-barra span { margin-left: 8px; flex: 1; font-family: Consolas, monospace; }
.ventana-barra strong { color: var(--verde); font-weight: 600; }
.ventana-fila { display: grid; grid-template-columns: 1.1fr 1fr 48px; gap: 14px; align-items: center; margin: 10px 14px; padding: 12px 14px; background: var(--panel-2); border: 1px solid var(--borde); border-radius: 12px; }
.ventana-fila small { color: var(--suave); font-size: .68rem; letter-spacing: .08em; }
.ventana-fila p { margin: 0; font-weight: 600; font-size: .92rem; }
.ventana-fila em { font-style: normal; font-size: .85rem; text-align: right; color: var(--cian); }
.ventana-fila em.listo { color: var(--verde); }
.avance { height: 7px; background: var(--fondo); border-radius: 9px; overflow: hidden; }
.avance s { display: block; height: 100%; background: linear-gradient(90deg, var(--cian), var(--violeta)); }
.a40 { width: 40%; } .a72 { width: 72%; } .a100 { width: 100%; }
.ventana-pie { padding: 4px 16px 8px; color: #7d88ae; font-size: .72rem; }

.bloque { padding: 60px 0; }
.seccion { margin: 0 0 8px; color: var(--cian); font-size: .8rem; font-weight: 700; letter-spacing: .12em; }
h2 { font-size: clamp(1.8rem, 3.6vw, 2.7rem); margin-bottom: 30px; }
.rejilla { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.tarjeta { padding: 24px; background: var(--panel); border: 1px solid var(--borde); border-radius: 16px; }
.tarjeta h3 { font-size: 1.12rem; margin-bottom: 8px; }
.tarjeta p { margin: 0; color: var(--suave); }
.plan { display: flex; flex-direction: column; gap: 8px; }
.plan .precio { margin-top: 10px; color: var(--texto); font-size: 2rem; font-weight: 800; }
.plan .duracion { color: var(--cian); }
.plan button { margin-top: auto; }
.plan small { color: var(--suave); }
.vacio { grid-column: 1 / -1; margin: 0; padding: 26px; color: var(--suave); text-align: center; border: 1px dashed var(--borde); border-radius: 16px; }

.banda { display: grid; grid-template-columns: 1.3fr 1fr; gap: 40px; align-items: center; margin: 30px 0; padding: 44px; background: var(--panel); border: 1px solid var(--borde); border-radius: 22px; }
.banda h2 { margin-bottom: 14px; }
.banda p:not(.seccion) { color: var(--suave); margin: 0; }
.lista { margin: 0; padding: 0; list-style: none; }
.lista li { padding: 10px 0; border-bottom: 1px solid var(--borde); }
.lista li::before { content: "✓"; margin-right: 10px; color: var(--verde); font-weight: 700; }

.preguntas { display: grid; gap: 10px; }
details { padding: 16px 20px; background: var(--panel); border: 1px solid var(--borde); border-radius: 12px; }
summary { font-weight: 600; cursor: pointer; }
details p { margin: 10px 0 0; color: var(--suave); }

.final { margin: 30px 0 70px; padding: 64px 24px; text-align: center; background: linear-gradient(120deg, rgba(34, 211, 238, .18), rgba(139, 92, 246, .3)); border: 1px solid var(--borde); border-radius: 24px; }
.final h2 { margin-bottom: 10px; }
.final p { margin: 0 0 24px; color: var(--suave); }

.pie { display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; max-width: 1180px; margin: 0 auto; padding: 24px 20px 40px; color: #8a95bb; font-size: .85rem; border-top: 1px solid var(--borde); }

.formulario { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.formulario .ancho { grid-column: 1 / -1; }
.formulario.tarjeta { max-width: 760px; }
label { display: block; color: var(--suave); font-size: .9rem; }
label small { color: #8a95bb; }
input:not([type=checkbox]), textarea, select { width: 100%; margin-top: 5px; padding: 11px 13px; color: var(--texto); background: var(--fondo); border: 1px solid var(--borde); border-radius: 10px; font: inherit; }
textarea { font-family: Consolas, monospace; font-size: .85rem; }
label.casilla { display: flex; gap: 8px; align-items: center; }
.error { margin: 0; color: var(--rojo); min-height: 1.2em; }

.sencilla .caja { max-width: 680px; padding-top: 30px; padding-bottom: 60px; }
.caja h1 { font-size: 2rem; margin-bottom: 18px; }
.caja h2 { font-size: 1.25rem; margin: 26px 0 8px; }
.dato { display: flex; justify-content: space-between; gap: 16px; padding: 9px 0; border-bottom: 1px solid var(--borde); }
.dato span { color: var(--suave); }
.dato strong { text-align: right; word-break: break-word; }
.nota { color: #8a95bb; font-size: .9rem; }
.instrucciones { white-space: pre-line; }
code { display: block; margin-top: 10px; padding: 12px; color: var(--cian); font-size: .85rem; word-break: break-all; background: var(--fondo); border: 1px solid var(--borde); border-radius: 10px; }

@media (max-width: 900px) {
  .hero, .banda { grid-template-columns: 1fr; }
  .hero { padding: 40px 0 50px; }
  .rejilla { grid-template-columns: 1fr 1fr; }
  .cabecera nav { display: none; }
  .cabecera .marca { flex: 1; }
}
@media (max-width: 560px) {
  .rejilla, .formulario { grid-template-columns: 1fr; }
  .banda { padding: 26px 20px; }
  .ventana-fila { grid-template-columns: 1fr 44px; }
  .ventana-fila .avance { grid-column: 1 / -1; grid-row: 2; }
  .enlace-cuenta { display: none; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }