/* FirmApp — hoja de estilos de la landing (v2) */

:root {
  --azul: #2563eb;
  --azul-claro: #60a5fa;
  --azul-oscuro: #1e3a8a;
  --noche: #0b1220;
  --noche-suave: #101a30;
  --tinta: #0f172a;
  --gris-texto: #475569;
  --gris-claro: #94a3b8;
  --gris-borde: #e2e8f0;
  --fondo: #ffffff;
  --fondo-suave: #f6f8fc;
  --verde: #059669;
  --whatsapp: #25d366;
  --radio: 16px;
  --sombra: 0 12px 34px rgba(15, 23, 42, .10);
  --sombra-alta: 0 24px 60px rgba(15, 23, 42, .18);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: 'Inter', system-ui, sans-serif; color: var(--tinta); background: var(--fondo); line-height: 1.65; }

.contenedor { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.contenedor-angosto { max-width: 760px; }
.centrado { text-align: center; }
.centrado-flex { justify-content: center; }

h1 { font-size: clamp(2.2rem, 4.8vw, 3.6rem); line-height: 1.12; font-weight: 800; letter-spacing: -.02em; }
h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); font-weight: 800; letter-spacing: -.01em; margin-bottom: .4rem; }
h3 { font-weight: 700; }
.subtitulo { color: var(--gris-texto); margin-bottom: 2.4rem; font-size: 1.08rem; max-width: 640px; }
.centrado .subtitulo { margin-left: auto; margin-right: auto; }
.acento { background: linear-gradient(90deg, var(--azul-claro), #a5b4fc); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* Botones */
.boton { display: inline-block; padding: .7rem 1.4rem; border-radius: 12px; font-weight: 600; text-decoration: none; transition: transform .18s ease, box-shadow .18s ease, background .18s ease; }
.boton:hover { transform: translateY(-2px); }
.boton:active { transform: translateY(0); }
.boton-grande { padding: .95rem 2rem; font-size: 1.05rem; }
.boton-primario { background: linear-gradient(135deg, #3b82f6, var(--azul)); color: #fff; box-shadow: 0 8px 22px rgba(37, 99, 235, .40); }
.boton-primario:hover { box-shadow: 0 12px 30px rgba(37, 99, 235, .50); }
.boton-secundario { background: transparent; color: var(--azul); border: 2px solid var(--azul); }
.cabecera .boton-secundario { color: var(--azul); border-color: rgba(37, 99, 235, .35); }
.cabecera .boton-secundario:hover { border-color: var(--azul); background: rgba(37, 99, 235, .06); }
.boton-whatsapp { background: var(--whatsapp); color: #fff; box-shadow: 0 8px 22px rgba(37, 211, 102, .35); }

/* Cabecera oscura con brillos */
.cabecera {
  position: relative;
  background:
    radial-gradient(720px 420px at 82% -10%, rgba(37, 99, 235, .12), transparent 60%),
    radial-gradient(560px 380px at 8% 110%, rgba(99, 102, 241, .10), transparent 60%),
    linear-gradient(180deg, #ffffff 0%, #f1f5f9 100%);
  color: var(--tinta);
  overflow: hidden;
}
.cabecera::before {
  content: "";
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(15,23,42,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(15,23,42,.05) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 30%, transparent 75%);
  pointer-events: none;
}
.nav { position: relative; display: flex; align-items: center; justify-content: space-between; padding-top: 20px; padding-bottom: 20px; z-index: 5; }
.logo { display: flex; align-items: center; gap: 9px; font-size: 1.4rem; font-weight: 700; color: var(--tinta); text-decoration: none; }
.logo b { color: var(--azul); }
.nav-enlaces { display: flex; align-items: center; gap: 28px; list-style: none; }
.nav-enlaces a { text-decoration: none; color: var(--gris-texto); font-weight: 500; font-size: .97rem; }
.nav-enlaces a:hover { color: var(--tinta); }
.nav-enlaces a.boton { color: #fff; }
.nav-boton-movil { display: none; background: none; border: none; font-size: 1.7rem; cursor: pointer; color: var(--tinta); }

/* Héroe */
.heroe { position: relative; display: grid; grid-template-columns: 1.08fr .92fr; gap: 56px; align-items: center; padding-top: 64px; padding-bottom: 96px; z-index: 2; }
.chip { display: inline-flex; align-items: center; gap: 6px; background: rgba(37, 99, 235, .10); border: 1px solid rgba(37, 99, 235, .25); color: var(--azul-oscuro); font-size: .85rem; font-weight: 600; padding: .35rem 1rem; border-radius: 999px; margin-bottom: 1.2rem; }
.heroe-texto h1 { color: var(--tinta); }
.heroe-texto p { color: var(--gris-texto); font-size: 1.14rem; margin: 1.2rem 0 1.8rem; max-width: 520px; }
.heroe-acciones { display: flex; gap: 14px; flex-wrap: wrap; }
.heroe-puntos { list-style: none; margin-top: 1.8rem; color: var(--gris-texto); font-size: .95rem; display: grid; gap: .4rem; }

/* Demo documento */
.heroe-demo { position: relative; animation: flotar 6s ease-in-out infinite; }
@keyframes flotar { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
.tarjeta-doc { background: #fff; border-radius: var(--radio); box-shadow: var(--sombra-alta); overflow: hidden; color: var(--tinta); }
.tarjeta-doc-cabecera { display: flex; align-items: center; gap: 6px; padding: 13px 18px; border-bottom: 1px solid var(--gris-borde); background: var(--fondo-suave); }
.punto { width: 10px; height: 10px; border-radius: 50%; }
.rojo { background: #f87171; } .amarillo { background: #fbbf24; } .verde { background: #34d399; }
.tarjeta-doc-titulo { margin-left: 10px; font-size: .85rem; color: var(--gris-texto); font-weight: 500; }
.tarjeta-doc-cuerpo { padding: 26px; }
.linea-doc { height: 9px; border-radius: 5px; background: var(--gris-borde); margin-bottom: 13px; }
.linea-doc.ancha { width: 65%; background: #cbd5e1; }
.linea-doc.media { width: 45%; }
.zona-firma { margin-top: 28px; display: flex; flex-direction: column; align-items: flex-start; }
.firma-manuscrita { font-family: 'Caveat', cursive; font-size: 2.1rem; color: #1e293b; transform: rotate(-3deg); min-height: 2.4rem; }
.linea-firma { width: 230px; border-bottom: 2px solid var(--tinta); margin-top: -6px; }
.etiqueta-firma { font-size: .78rem; color: var(--gris-texto); margin-top: 6px; }
.tarjeta-doc-pie { display: flex; justify-content: space-between; align-items: center; padding: 13px 18px; border-top: 1px solid var(--gris-borde); background: #f0fdf4; }
.estado-firmado { color: var(--verde); font-weight: 700; font-size: .9rem; }
.hash-mini { font-family: ui-monospace, monospace; font-size: .78rem; color: var(--gris-texto); }
.burbuja { position: absolute; background: rgba(255,255,255,.96); box-shadow: var(--sombra); border-radius: 999px; padding: .5rem 1.1rem; font-size: .85rem; font-weight: 600; color: var(--tinta); }
.burbuja-1 { top: -20px; right: -10px; animation: flotar 5s ease-in-out infinite reverse; }
.burbuja-2 { bottom: -20px; left: -10px; animation: flotar 7s ease-in-out infinite; }

/* Secciones */
.seccion { padding: 84px 0; }
.seccion-alterna { background: var(--fondo-suave); }

/* Pasos */
.pasos { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; margin-top: 1rem; counter-reset: pasos; }
.paso { position: relative; background: #fff; border: 1px solid var(--gris-borde); border-radius: var(--radio); padding: 28px 24px; transition: transform .2s ease, box-shadow .2s ease; }
.paso:hover { transform: translateY(-5px); box-shadow: var(--sombra); border-color: #bfdbfe; }
.paso-numero { display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: 12px; background: linear-gradient(135deg, #3b82f6, var(--azul)); color: #fff; font-weight: 800; margin-bottom: 16px; box-shadow: 0 6px 14px rgba(37,99,235,.30); }
.paso h3 { margin-bottom: 6px; font-size: 1.05rem; }
.paso p { color: var(--gris-texto); font-size: .93rem; }

/* Características */
.rejilla-caracteristicas { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.caracteristica { background: #fff; border: 1px solid var(--gris-borde); border-radius: var(--radio); padding: 28px; transition: transform .2s ease, box-shadow .2s ease; }
.caracteristica:hover { transform: translateY(-5px); box-shadow: var(--sombra); }
.caracteristica .icono { display: inline-flex; align-items: center; justify-content: center; width: 52px; height: 52px; border-radius: 14px; background: #eff6ff; font-size: 1.6rem; margin-bottom: 14px; }
.caracteristica h3 { margin-bottom: 6px; font-size: 1.05rem; }
.caracteristica p { color: var(--gris-texto); font-size: .94rem; }

/* Legal */
.legal-rejilla { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; }
.legal-rejilla p { color: var(--gris-texto); margin-top: .9rem; }
.tarjeta-evidencia { position: relative; background: #fff; border: 1px solid var(--gris-borde); border-radius: var(--radio); box-shadow: var(--sombra-alta); padding: 28px; }
.tarjeta-evidencia::before { content: ""; position: absolute; inset: 0; border-radius: var(--radio); padding: 2px; background: linear-gradient(135deg, rgba(37,99,235,.5), transparent 40%, transparent 60%, rgba(5,150,105,.5)); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; pointer-events: none; }
.tarjeta-evidencia h3 { margin-bottom: 14px; }
.tarjeta-evidencia ul { list-style: none; }
.tarjeta-evidencia li { display: flex; justify-content: space-between; gap: 12px; padding: 9px 0; border-bottom: 1px dashed var(--gris-borde); font-size: .92rem; }
.tarjeta-evidencia li span { color: var(--gris-texto); }
.sello { display: inline-block; margin-top: 18px; background: #dcfce7; color: var(--verde); font-weight: 700; padding: .4rem 1.1rem; border-radius: 999px; font-size: .9rem; }

/* Precios */
.planes { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; align-items: stretch; }
.plan { background: #fff; border: 1px solid var(--gris-borde); border-radius: var(--radio); padding: 32px 28px; display: flex; flex-direction: column; transition: transform .2s ease, box-shadow .2s ease; }
.plan:hover { transform: translateY(-5px); box-shadow: var(--sombra); }
.plan-destacado { border: 2px solid var(--azul); box-shadow: var(--sombra-alta); position: relative; transform: scale(1.03); }
.plan-destacado:hover { transform: scale(1.03) translateY(-5px); }
.plan-etiqueta { position: absolute; top: -15px; left: 50%; transform: translateX(-50%); background: linear-gradient(135deg, #3b82f6, var(--azul)); color: #fff; font-size: .78rem; font-weight: 700; padding: .3rem 1rem; border-radius: 999px; box-shadow: 0 6px 14px rgba(37,99,235,.35); }
.plan-precio { font-size: 2.2rem; font-weight: 800; margin: 8px 0 20px; letter-spacing: -.02em; }
.plan-precio span { font-size: .92rem; font-weight: 500; color: var(--gris-texto); letter-spacing: 0; }
.plan ul { list-style: none; margin-bottom: 26px; display: grid; gap: .55rem; color: var(--gris-texto); font-size: .95rem; flex: 1; }
.plan .boton { text-align: center; }

/* FAQ */
#preguntas details { background: #fff; border: 1px solid var(--gris-borde); border-radius: 12px; padding: 18px 22px; margin-bottom: 12px; transition: box-shadow .2s ease; }
#preguntas details[open] { box-shadow: var(--sombra); border-color: #bfdbfe; }
#preguntas summary { font-weight: 600; cursor: pointer; }
#preguntas p { margin-top: 10px; color: var(--gris-texto); }

/* CTA final */
.cta-final { position: relative; background: radial-gradient(600px 320px at 50% -20%, rgba(96,165,250,.35), transparent 60%), linear-gradient(135deg, var(--noche), var(--azul-oscuro)); color: #fff; overflow: hidden; }
.cta-final h2 { color: #fff; }
.cta-final .subtitulo { color: #bfdbfe; }

/* Pie */
.pie { background: var(--noche); color: var(--gris-claro); padding: 30px 0; font-size: .9rem; }
.pie-contenido { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.pie strong { color: #fff; }
.pie-enlaces { display: flex; gap: 18px; }
.pie-enlaces a { color: var(--gris-claro); text-decoration: none; }
.pie-enlaces a:hover { color: #fff; }

/* Viñetas con ticks discretos */
.heroe-puntos li::before, .plan ul li::before { content: "✓"; color: var(--verde); font-weight: 700; margin-right: .55rem; }
.heroe-puntos li::before { color: var(--azul-claro); }

/* Formulario de contacto */
.formulario-contacto { max-width: 620px; margin: 0 auto; text-align: left; display: grid; gap: 16px; }
.campos-fila { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.formulario-contacto label { display: grid; gap: 6px; font-size: .9rem; font-weight: 600; color: #cbd5e1; }
.formulario-contacto input, .formulario-contacto textarea {
  font: inherit; padding: .75rem 1rem; border-radius: 10px; border: 1px solid rgba(148, 163, 184, .35);
  background: rgba(255, 255, 255, .07); color: #fff; outline: none; transition: border-color .15s, background .15s;
}
.formulario-contacto input::placeholder, .formulario-contacto textarea::placeholder { color: #64748b; }
.formulario-contacto input:focus, .formulario-contacto textarea:focus { border-color: var(--azul-claro); background: rgba(255, 255, 255, .12); }
.formulario-contacto textarea { resize: vertical; }
.formulario-contacto .heroe-acciones { margin-top: 6px; }
.formulario-contacto button { border: none; cursor: pointer; font: inherit; font-weight: 600; }
.campo-oculto { position: absolute !important; left: -9999px; opacity: 0; height: 0; }
.nota-formulario { min-height: 1.4em; font-size: .95rem; font-weight: 600; text-align: center; }
.nota-formulario.exito { color: #6ee7b7; }
.nota-formulario.error { color: #fca5a5; }

/* Botón flotante de WhatsApp */
.whatsapp-flotante { position: fixed; bottom: 24px; right: 24px; z-index: 50; display: flex; align-items: center; justify-content: center; width: 58px; height: 58px; border-radius: 50%; background: var(--whatsapp); box-shadow: 0 10px 26px rgba(37, 211, 102, .45); transition: transform .18s ease, box-shadow .18s ease; }
.whatsapp-flotante:hover { transform: scale(1.08); box-shadow: 0 14px 32px rgba(37, 211, 102, .55); }

/* Páginas legales (términos, privacidad) */
.cabecera-legal { background: linear-gradient(180deg, #ffffff 0%, #f1f5f9 100%); border-bottom: 1px solid var(--gris-borde); }
.cabecera-legal .nav { padding-top: 16px; padding-bottom: 16px; }
.legal-doc { padding: 48px 24px 72px; }
.legal-doc h1 { color: var(--tinta); font-size: 2rem; margin-bottom: 6px; }
.legal-doc h2 { color: var(--azul-oscuro); font-size: 1.2rem; margin: 34px 0 10px; }
.legal-doc p, .legal-doc li { color: var(--gris-texto); line-height: 1.7; }
.legal-doc ul { padding-left: 22px; margin: 10px 0; }
.legal-doc li { margin: 6px 0; }
.legal-doc a { color: var(--azul); }
.legal-fecha { font-size: .9rem; color: var(--gris-claro); margin-bottom: 24px; }
.legal-nota { margin-top: 30px; padding: 14px 18px; background: #fffbeb; border-left: 4px solid #d97706; border-radius: 8px; font-size: .92rem; color: #92400e; }

/* Demo interactiva de firma */
.demo-firma [hidden] { display: none !important; }
.demo-firma { max-width: 940px; margin: 8px auto 0; background: #fff; border: 1px solid var(--gris-borde); border-radius: 20px; box-shadow: var(--sombra-alta); overflow: hidden; }
.demo-dropzone { display: flex; flex-direction: column; align-items: center; gap: 12px; padding: 54px 24px; margin: 22px; border: 2px dashed #b9c6da; border-radius: 16px; text-align: center; transition: border-color .2s, background .2s; }
.demo-dropzone.demo-arrastrando { border-color: var(--azul); background: rgba(37,99,235,.05); }
.demo-icono { font-size: 2.4rem; }
.demo-suelta { font-weight: 700; font-size: 1.1rem; color: var(--tinta); margin: 0; }
.demo-o { color: var(--gris-claro); font-size: .9rem; }
.demo-nota { color: var(--gris-claro); font-size: .82rem; margin: 6px 0 0; }
.demo-taller { display: grid; grid-template-columns: 1.5fr 1fr; gap: 0; }
.demo-visor { padding: 22px; background: #eef2f7; border-right: 1px solid var(--gris-borde); }
.demo-instruccion { font-size: .88rem; color: var(--gris-texto); margin: 0 0 12px; text-align: center; }
.demo-nav { display: none; align-items: center; justify-content: center; gap: 12px; margin: 0 0 12px; }
.demo-nav-info { font-size: .85rem; font-weight: 600; color: var(--tinta); min-width: 110px; text-align: center; }
.demo-nav .demo-mini { padding: .3rem .7rem; }
.demo-lienzo-wrap { position: relative; display: inline-block; width: 100%; text-align: center; }
.demo-lienzo-wrap canvas { max-width: 100%; border: 1px solid #cbd5e1; border-radius: 6px; box-shadow: 0 4px 14px rgba(15,23,42,.12); cursor: crosshair; background: #fff; }
.demo-firma-preview { position: absolute; pointer-events: none; filter: drop-shadow(0 1px 1px rgba(0,0,0,.15)); }
.demo-panel { padding: 22px; display: flex; flex-direction: column; gap: 10px; }
.demo-panel h3 { margin: 0; color: var(--tinta); font-size: 1.05rem; }
.demo-panel-ayuda { margin: 0; font-size: .82rem; color: var(--gris-claro); }
.demo-pad { width: 100%; height: 150px; border: 2px dashed #b9c6da; border-radius: 10px; background: #fff; touch-action: none; cursor: crosshair; }
.demo-panel-acciones { display: flex; justify-content: flex-end; }
.demo-mini { padding: .35rem .9rem; font-size: .82rem; border-width: 1px; }
.demo-panel .boton-primario { margin-top: 4px; }
.demo-panel .boton-primario:disabled { opacity: .5; cursor: not-allowed; box-shadow: none; }
.demo-reiniciar { background: none; border: none; color: var(--gris-texto); font-size: .85rem; cursor: pointer; padding: 4px; }
.demo-reiniciar:hover { color: var(--azul); }
.demo-estado { margin: 2px 0 0; font-size: .85rem; font-weight: 600; color: var(--verde); min-height: 1.1em; }
.demo-cierre { text-align: center; margin-top: 22px; color: var(--gris-texto); font-size: .95rem; }
.demo-cierre a { color: var(--azul); font-weight: 600; }

/* Upsell tras descargar la demo */
.demo-upsell { border-top: 1px solid var(--gris-borde); padding: 28px 24px; text-align: center; background: linear-gradient(180deg,#fff, #f8fafc); }
.demo-upsell-ic { font-size: 2rem; }
.demo-upsell h3 { font-size: 1.25rem; color: var(--tinta); margin: 8px 0; }
.demo-upsell h3 span { color: var(--ambar, #d97706); }
.demo-upsell > p { color: var(--gris-texto); max-width: 560px; margin: 0 auto 18px; }
.demo-comparar { display: flex; gap: 16px; max-width: 680px; margin: 0 auto 20px; flex-wrap: wrap; }
.demo-col { flex: 1 1 260px; border: 1px solid var(--gris-borde); border-radius: 12px; padding: 16px; text-align: left; background: #fff; }
.demo-col-pago { border-color: var(--azul); box-shadow: 0 6px 18px rgba(37,99,235,.12); }
.demo-col-tit { font-weight: 700; font-size: .9rem; margin-bottom: 10px; }
.demo-col-gratis .demo-col-tit { color: var(--gris-claro); }
.demo-col-pago .demo-col-tit { color: var(--azul); }
.demo-col ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 7px; font-size: .88rem; }
.demo-col li.no { color: #94a3b8; }
.demo-col li.no::before { content: "✕ "; color: #ef4444; font-weight: 700; }
.demo-col li.si { color: var(--tinta); }
.demo-col li.si::before { content: "✓ "; color: var(--verde); font-weight: 700; }
.demo-upsell-nota { font-size: .85rem; color: var(--gris-claro); margin-top: 10px; }

/* Titulos de grupo en Precios */
.planes-titulo { text-align: center; font-size: 1.15rem; color: var(--azul-oscuro); margin: 34px 0 18px; font-weight: 700; }
.planes-titulo:first-of-type { margin-top: 8px; }
.planes { max-width: 760px; margin-left: auto; margin-right: auto; }
.planes.planes-3 { grid-template-columns: repeat(3, 1fr); max-width: 980px; }

/* Sellos de confianza */
.sellos-confianza { display: flex; gap: 22px; flex-wrap: wrap; margin-top: 26px; align-items: center; }
.sellos-confianza .sello-svg { width: 118px; height: 118px; filter: drop-shadow(0 6px 16px rgba(0,0,0,.28)); transition: transform .25s ease; }
.sellos-confianza .sello-svg:hover { transform: scale(1.06) rotate(-2deg); }
.sellos-nota { flex: 1 1 160px; font-size: 13px; color: var(--gris-claro); line-height: 1.5; min-width: 160px; }

/* Responsivo */
@media (max-width: 900px) {
  .sellos-confianza { justify-content: center; }
  .campos-fila { grid-template-columns: 1fr; }
  .heroe, .legal-rejilla { grid-template-columns: 1fr; }
  .heroe { padding-top: 40px; padding-bottom: 72px; gap: 44px; }
  .pasos { grid-template-columns: repeat(2, 1fr); }
  .rejilla-caracteristicas, .planes, .planes.planes-3 { grid-template-columns: 1fr; }
  .demo-taller { grid-template-columns: 1fr; }
  .demo-visor { border-right: none; border-bottom: 1px solid var(--gris-borde); }
  .plan-destacado { transform: none; }
  .plan-destacado:hover { transform: translateY(-5px); }
  .nav-boton-movil { display: block; }
  .nav-enlaces { display: none; position: absolute; top: 68px; left: 0; right: 0; background: #ffffff; border: 1px solid var(--gris-borde); flex-direction: column; padding: 22px; border-radius: 0 0 16px 16px; z-index: 20; box-shadow: var(--sombra-alta); }
  .nav-enlaces.abierto { display: flex; }
  .nav { position: relative; }
  .burbuja-1 { right: 2px; } .burbuja-2 { left: 2px; }
}