/* VYXO — sitio público
   Concepto: convergencia. Cinco señales entran, se cruzan en un nodo y sale una sola voz.
   Mundo único oscuro (el logo solo vive sobre fondo oscuro). */
@import url('https://fonts.googleapis.com/css2?family=Sora:wght@500;600;700&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@500&display=swap');

:root {
  --noche: #070B14;
  --noche-2: #0B1120;
  --superficie: #111827;
  --borde: #232B3E;
  --tinta: #EAF0FF;
  --tinta-suave: #8A94B0;
  --violeta: #7C5CFF;
  --violeta-texto: #9D85FF;
  --cian: #22E1FF;
  --magenta: #FF4FD8;
  --exito: #2EE59D;
  --degradado: linear-gradient(135deg, #7C5CFF 0%, #22E1FF 100%);

  --f-display: "Sora", "Inter", system-ui, sans-serif;
  --f-texto: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --f-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --ancho: 1160px;
  --r-md: 10px;
  --r-lg: 16px;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0; background: var(--noche); color: var(--tinta);
  font: 400 16px/1.6 var(--f-texto); -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--violeta-texto); text-underline-offset: 3px; }
a:hover { color: var(--tinta); }
:focus-visible { outline: 2px solid var(--cian); outline-offset: 3px; border-radius: 4px; }

.envoltura {
  max-width: var(--ancho); margin: 0 auto;
  padding-left: max(20px, env(safe-area-inset-left, 0px));
  padding-right: max(20px, env(safe-area-inset-right, 0px));
}

/* ---------- Tipografía ---------- */
h1, h2, h3 { font-family: var(--f-display); text-wrap: balance; margin: 0; letter-spacing: -.02em; }
h1 { font-size: clamp(2.4rem, 1.5rem + 3.6vw, 4.4rem); line-height: 1.04; font-weight: 700; }
h2 { font-size: clamp(1.75rem, 1.3rem + 1.6vw, 2.6rem); line-height: 1.1; font-weight: 700; }
h3 { font-size: 1.2rem; line-height: 1.3; font-weight: 600; letter-spacing: -.01em; }
p { margin: 0; max-width: 64ch; }
.entrada { font-size: clamp(1.05rem, 1rem + .3vw, 1.25rem); color: var(--tinta-suave); line-height: 1.55; }
.etiqueta {
  font: 500 .75rem/1 var(--f-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--cian);
}
.suave { color: var(--tinta-suave); }
.degradado-texto { background: var(--degradado); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ---------- Cabecera ---------- */
body::before { content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px); z-index: 30; background: var(--noche); }
.cabecera {
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 20;
  background: color-mix(in srgb, var(--noche) 82%, transparent);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--borde);
}
.cabecera .envoltura { display: flex; align-items: center; gap: 24px; min-height: 68px; }
.marca { display: flex; align-items: center; gap: 10px; text-decoration: none; flex: none; }
.marca img { height: 30px; width: auto; }
.nav { display: flex; gap: 4px; margin-left: auto; align-items: center; }
.nav a { color: var(--tinta-suave); text-decoration: none; font-size: .93rem; font-weight: 500; padding: 8px 12px; border-radius: 8px; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--tinta); background: var(--superficie); }
.menu-btn { display: none; margin-left: auto; background: none; border: 1px solid var(--borde); color: var(--tinta);
  border-radius: 8px; width: 42px; height: 42px; font-size: 18px; cursor: pointer; }
@media (max-width: 920px) {
  .menu-btn { display: inline-grid; place-items: center; }
  .nav { display: none; position: absolute; left: 0; right: 0; top: 100%; flex-direction: column; align-items: stretch;
         background: var(--noche); border-bottom: 1px solid var(--borde);
         padding: 12px max(20px, env(safe-area-inset-right, 0px)) 20px max(20px, env(safe-area-inset-left, 0px)); }
  .nav.abierto { display: flex; }
  .nav a { padding: 12px; }
  .nav .boton { margin-top: 8px; text-align: center; }
}

/* ---------- Botones ---------- */
.boton {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font: 600 .98rem/1 var(--f-texto); text-decoration: none; cursor: pointer;
  padding: 14px 22px; border-radius: var(--r-md); border: 0;
  background: var(--degradado); color: #fff; text-shadow: 0 1px 1px rgba(7,11,20,.35);
  box-shadow: 0 8px 30px -10px rgba(124,92,255,.7);
  transition: transform .2s cubic-bezier(.22,1,.36,1), box-shadow .2s;
}
.boton:hover { color: #fff; transform: translateY(-1px); box-shadow: 0 12px 36px -10px rgba(34,225,255,.6); }
.boton.secundario { background: transparent; border: 1px solid var(--borde); box-shadow: none; text-shadow: none; color: var(--tinta); }
.boton.secundario:hover { border-color: var(--violeta-texto); }
.nav .boton { padding: 10px 16px; font-size: .9rem; }
@media (prefers-reduced-motion: reduce) { .boton { transition: none; } .boton:hover { transform: none; } }

/* ---------- Secciones ---------- */
.seccion { padding-block: clamp(64px, 8vw, 112px); }
.seccion.banda { background: var(--noche-2); border-block: 1px solid var(--borde); }
.encabezado { display: grid; gap: 14px; margin-bottom: clamp(32px, 4vw, 56px); max-width: 760px; }

/* ---------- Héroe ---------- */
.heroe { padding-block: clamp(48px, 7vw, 96px) clamp(40px, 6vw, 80px); position: relative; overflow: hidden; }
.heroe::after { /* pistas de circuito muy tenues, como en el logo */
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .5;
  background-image:
    linear-gradient(var(--borde) 1px, transparent 1px),
    linear-gradient(90deg, var(--borde) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 60% 70% at 78% 40%, #000 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 60% 70% at 78% 40%, #000 0%, transparent 70%);
}
.heroe .envoltura { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: clamp(24px, 4vw, 64px); align-items: center; }
.heroe-texto { display: grid; gap: 22px; min-width: 0; }
.acciones { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 6px; }
.nota-demo { font-size: .88rem; color: var(--tinta-suave); display: flex; gap: 8px; align-items: center; }
.nota-demo::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--exito); box-shadow: 0 0 10px var(--exito); flex: none; }
@media (max-width: 860px) { .heroe .envoltura { grid-template-columns: 1fr; } }

/* Momento firma: señales que convergen */
.convergencia { width: 100%; height: auto; min-width: 0; }
.convergencia .via { fill: none; stroke: var(--borde); stroke-width: 2; }
.convergencia .pulso { fill: none; stroke-width: 3; stroke-linecap: round; stroke-dasharray: 46 600; animation: viaje 3.6s cubic-bezier(.5,0,.3,1) infinite; }
.convergencia .salida { fill: none; stroke: url(#gsalida); stroke-width: 4; stroke-linecap: round; stroke-dasharray: 80 400; animation: viaje-salida 3.6s cubic-bezier(.4,0,.2,1) infinite; }
.convergencia .canal-txt { font: 500 13px var(--f-mono); fill: var(--tinta-suave); letter-spacing: .04em; }
.convergencia .voz-txt { font: 600 15px var(--f-display); fill: var(--tinta); }
.convergencia .punto { fill: var(--superficie); stroke: var(--borde); stroke-width: 1.5; }
@keyframes viaje { 0% { stroke-dashoffset: 46; } 55%, 100% { stroke-dashoffset: -420; } }
@keyframes viaje-salida { 0%, 45% { stroke-dashoffset: 80; } 100% { stroke-dashoffset: -330; } }
.nodo-brillo { animation: latido 3.6s ease-in-out infinite; transform-origin: center; transform-box: fill-box; }
@keyframes latido { 0%, 40% { opacity: .55; transform: scale(.85); } 55% { opacity: 1; transform: scale(1.15); } 100% { opacity: .55; transform: scale(.85); } }
@media (prefers-reduced-motion: reduce) {
  .convergencia .pulso, .convergencia .salida, .nodo-brillo { animation: none; }
  .convergencia .pulso { stroke-dasharray: none; opacity: .55; }
  .convergencia .salida { stroke-dasharray: none; }
}

/* ---------- Rejillas ---------- */
.rejilla { display: grid; gap: 16px; }
.r-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.r-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.r-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
@media (max-width: 980px) { .r-5 { grid-template-columns: repeat(3, minmax(0, 1fr)); } .r-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) { .r-2, .r-3, .r-5 { grid-template-columns: 1fr; } }

.tarjeta {
  background: var(--superficie); border: 1px solid var(--borde); border-radius: var(--r-lg);
  padding: clamp(20px, 2.4vw, 28px); display: grid; gap: 10px; align-content: start; min-width: 0;
}
.tarjeta p { color: var(--tinta-suave); font-size: .97rem; }
.icono { width: 40px; height: 40px; border-radius: 10px; display: grid; place-items: center;
  background: color-mix(in srgb, var(--violeta) 14%, transparent); color: var(--cian); margin-bottom: 4px; }
.icono svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }

/* Pasos: es una secuencia real, por eso numerados */
.pasos { counter-reset: paso; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; position: relative; }
.paso { padding: 0 24px 0 0; display: grid; gap: 10px; align-content: start; min-width: 0; }
.paso .num { font: 500 .8rem/1 var(--f-mono); color: var(--cian); display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
.paso .num::after { content: ""; height: 1px; flex: 1; background: linear-gradient(90deg, var(--borde), transparent); }
.paso p { color: var(--tinta-suave); }
@media (max-width: 760px) { .pasos { grid-template-columns: 1fr; gap: 32px; } .paso { padding: 0; } }

/* Canales en banda */
.canales-lista { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); border: 1px solid var(--borde); border-radius: var(--r-lg); overflow: hidden; }
.canal { padding: 22px 20px; display: grid; gap: 8px; border-right: 1px solid var(--borde); min-width: 0; }
.canal:last-child { border-right: 0; }
.canal b { font-family: var(--f-display); font-weight: 600; font-size: 1.05rem; }
.canal span { color: var(--tinta-suave); font-size: .9rem; }
@media (max-width: 900px) { .canales-lista { grid-template-columns: 1fr; } .canal { border-right: 0; border-bottom: 1px solid var(--borde); } .canal:last-child { border-bottom: 0; } }

/* Ejemplo de conversación */
.chat-ejemplo { background: var(--superficie); border: 1px solid var(--borde); border-radius: var(--r-lg); overflow: hidden; min-width: 0; }
.chat-cab { display: flex; justify-content: space-between; gap: 10px; align-items: center; padding: 14px 18px; border-bottom: 1px solid var(--borde); }
.chat-cab b { font-family: var(--f-display); font-weight: 600; }
.chat-cuerpo { padding: 18px; display: grid; gap: 10px; }
.msj { padding: 10px 14px; border-radius: 14px; max-width: 86%; font-size: .95rem; line-height: 1.45; }
.msj.cliente { background: var(--noche); border: 1px solid var(--borde); justify-self: end; border-bottom-right-radius: 4px; }
.msj.agente { background: color-mix(in srgb, var(--violeta) 18%, var(--superficie)); border-bottom-left-radius: 4px; }
.evento { justify-self: center; font: 500 .74rem/1.3 var(--f-mono); color: var(--exito); border: 1px dashed color-mix(in srgb, var(--exito) 50%, transparent); padding: 6px 10px; border-radius: 999px; text-align: center; }
.evento.escala { color: var(--magenta); border-color: color-mix(in srgb, var(--magenta) 50%, transparent); }

/* Bloques de dos columnas */
.duo { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(28px, 5vw, 72px); align-items: center; }
.duo > * { min-width: 0; }
@media (max-width: 860px) { .duo { grid-template-columns: 1fr; } }
.lista-check { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.lista-check li { display: grid; grid-template-columns: 20px 1fr; gap: 12px; color: var(--tinta-suave); }
.lista-check li::before { content: ""; width: 8px; height: 8px; margin-top: 9px; border-radius: 50%; background: var(--cian); box-shadow: 0 0 8px var(--cian); justify-self: center; }
.lista-check b { color: var(--tinta); font-weight: 600; }

/* Llamado final */
.llamado { text-align: left; display: grid; gap: 20px; justify-items: start;
  background: radial-gradient(ellipse 70% 120% at 100% 0%, color-mix(in srgb, var(--violeta) 30%, transparent), transparent 60%), var(--superficie);
  border: 1px solid var(--borde); border-radius: 22px; padding: clamp(28px, 5vw, 56px); }

/* Encabezado de página interior */
.portada { padding-block: clamp(48px, 7vw, 88px) clamp(24px, 3vw, 40px); }
.portada .envoltura { display: grid; gap: 18px; }

/* Preguntas */
.preguntas { display: grid; gap: 10px; max-width: 860px; }
details { background: var(--superficie); border: 1px solid var(--borde); border-radius: var(--r-md); padding: 0 20px; }
details[open] { border-color: color-mix(in srgb, var(--violeta) 50%, var(--borde)); }
summary { cursor: pointer; list-style: none; padding: 18px 0; font-weight: 600; display: flex; justify-content: space-between; gap: 16px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; font: 500 1.2rem/1 var(--f-mono); color: var(--cian); }
details[open] summary::after { content: "−"; }
details p { padding-bottom: 18px; color: var(--tinta-suave); }

/* Formulario */
.formulario { background: var(--superficie); border: 1px solid var(--borde); border-radius: 20px; padding: clamp(22px, 3.5vw, 40px); display: grid; gap: 18px; min-width: 0; }
.campos { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
@media (max-width: 640px) { .campos { grid-template-columns: 1fr; } }
.campo { display: grid; gap: 6px; min-width: 0; }
.campo.ancho { grid-column: 1 / -1; }
.campo label, .grupo-titulo { font-size: .88rem; font-weight: 600; color: var(--tinta); }
.campo .ayuda { font-size: .8rem; color: var(--tinta-suave); }
.campo input, .campo select, .campo textarea {
  width: 100%; font: 400 1rem/1.4 var(--f-texto); color: var(--tinta); background: var(--noche);
  border: 1px solid var(--borde); border-radius: var(--r-md); padding: 12px 14px;
}
.campo textarea { min-height: 120px; resize: vertical; }
.campo input:focus, .campo select:focus, .campo textarea:focus { outline: none; border-color: var(--cian); box-shadow: 0 0 0 3px color-mix(in srgb, var(--cian) 22%, transparent); }
.campo input[aria-invalid="true"] { border-color: #FF5C7A; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chips label { position: relative; cursor: pointer; }
.chips input { position: absolute; opacity: 0; inset: 0; cursor: pointer; }
.chips span { display: inline-block; padding: 9px 14px; border-radius: 999px; border: 1px solid var(--borde); font-size: .9rem; color: var(--tinta-suave); }
.chips input:checked + span { border-color: var(--cian); color: var(--tinta); background: color-mix(in srgb, var(--cian) 12%, transparent); }
.chips input:focus-visible + span { outline: 2px solid var(--cian); outline-offset: 2px; }
.consentimiento { display: grid; grid-template-columns: 20px 1fr; gap: 12px; font-size: .86rem; color: var(--tinta-suave); align-items: start; }
.consentimiento input { width: 18px; height: 18px; margin-top: 2px; accent-color: var(--violeta); }
.estado-form { font-size: .95rem; min-height: 1.4em; }
.estado-form.error { color: #FF5C7A; }
.exito-form { display: grid; gap: 12px; justify-items: start; }
.trampa { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* Pie */
.pie { border-top: 1px solid var(--borde); padding-block: 40px; color: var(--tinta-suave); font-size: .9rem; }
.pie .envoltura { display: flex; flex-wrap: wrap; gap: 24px 40px; justify-content: space-between; align-items: flex-start; }
.pie nav { display: flex; flex-wrap: wrap; gap: 8px 20px; }
.pie a { color: var(--tinta-suave); text-decoration: none; }
.pie a:hover { color: var(--tinta); }
.pie .marca img { height: 24px; }

.saltar { position: absolute; left: 12px; top: -60px; z-index: 40; background: var(--superficie); color: var(--tinta); padding: 10px 14px; border-radius: 8px; border: 1px solid var(--borde); }
.saltar:focus { top: calc(12px + env(safe-area-inset-top, 0px)); }
.nav a.boton, .nav a.boton:hover { color: #fff; background: var(--degradado); }

/* Imágenes de marca */
.figura { margin: 0 0 clamp(24px, 3vw, 40px); border-radius: 20px; overflow: hidden; border: 1px solid var(--borde); background: var(--noche); }
.figura img { width: 100%; height: auto; aspect-ratio: 1600 / 893; object-fit: cover; }
.llamado { position: relative; overflow: hidden; isolation: isolate; }
.llamado > :not(.llamado-fondo) { position: relative; z-index: 1; }
.llamado-fondo { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 60% 72%; z-index: 0; opacity: .4;
  mask-image: linear-gradient(90deg, transparent 0%, transparent 38%, #000 75%); -webkit-mask-image: linear-gradient(90deg, transparent 0%, transparent 38%, #000 75%); }
@media (max-width: 640px) { .llamado-fondo { opacity: .25; mask-image: none; -webkit-mask-image: none; } }

.seccion:not(.banda) + .seccion.cierre { padding-top: 0; }