/* Contavoz — landing pública.
   Paleta y tipografía tomadas del brand board oficial (contavoz-brand-board.png):
   azul → violeta sobre fondo oscuro, Poppins. El teal del globals.css es el tema
   interno de la app, no la identidad pública. */

:root {
  --fondo: #05060f;
  --fondo-alto: #0b0f22;
  --superficie: #11162e;
  --linea: #232a4d;
  --texto: #eef1fb;
  --texto-tenue: #a3adcf;

  --cian: #00c2ff;
  --azul: #0072ff;
  --indigo: #5a3bff;
  --violeta: #8a2be2;
  --menta: #00e0c3;

  --radio: 16px;
  --radio-g: 26px;
  --ancho: 1150px;
  --ease: cubic-bezier(.16, 1, .3, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  overflow-x: hidden;
  margin: 0;
  background: var(--fondo);
  color: var(--texto);
  font-family: Poppins, ui-rounded, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { line-height: 1.1; letter-spacing: -.035em; margin: 0; text-wrap: balance; }
p { margin: 0; }
img { max-width: 100%; display: block; }

.skip-link {
  position: absolute; left: -9999px; top: 12px;
  background: var(--indigo); color: #fff; padding: 12px 18px;
  border-radius: 10px; font-weight: 700; z-index: 100; text-decoration: none;
}
.skip-link:focus { left: 12px; }

:where(a, button):focus-visible {
  outline: 3px solid var(--cian);
  outline-offset: 3px;
  border-radius: 8px;
}

/* ---------- Cabecera ---------- */

.top {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; gap: 28px;
  max-width: var(--ancho); margin: auto;
  padding: 15px 24px;
  background: rgba(5, 6, 15, .8);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease);
}
.top.fija { border-bottom-color: var(--linea); }

.brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: 21px; letter-spacing: -.03em;
  color: var(--texto); text-decoration: none;
}

.top nav { display: flex; gap: 26px; margin-left: auto; }
.top nav a {
  color: var(--texto-tenue); text-decoration: none; font-weight: 500; font-size: 15px;
  transition: color .2s var(--ease);
}
.top nav a:hover { color: var(--texto); }

.btn-top {
  padding: 10px 20px; border-radius: 11px;
  background: linear-gradient(100deg, var(--azul), var(--indigo));
  color: #fff; font-weight: 600; font-size: 15px; text-decoration: none;
  transition: transform .2s var(--ease), filter .2s var(--ease);
}
.btn-top:hover { filter: brightness(1.12); transform: translateY(-1px); }

.menu-btn {
  display: none; margin-left: auto;
  width: 44px; height: 44px; padding: 0;
  background: none; border: 0; cursor: pointer;
  flex-direction: column; align-items: center; justify-content: center; gap: 6px;
}
.menu-btn span {
  display: block; width: 22px; height: 2px; border-radius: 2px;
  background: var(--texto);
  transition: transform .3s var(--ease);
}
.menu-btn[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
.menu-btn[aria-expanded="true"] span:last-child  { transform: translateY(-4px) rotate(-45deg); }

.menu-movil {
  display: none; flex-direction: column;
  padding: 8px 24px 22px;
  background: var(--fondo);
  border-bottom: 1px solid var(--linea);
  position: sticky; top: 72px; z-index: 49;
}
.menu-movil a {
  padding: 14px 4px; color: var(--texto); text-decoration: none; font-weight: 500;
  border-bottom: 1px solid var(--linea);
}
.menu-movil .btn-menu {
  margin-top: 14px; border: 0; text-align: center;
  background: linear-gradient(100deg, var(--azul), var(--indigo));
  color: #fff; border-radius: 12px; padding: 15px; font-weight: 600;
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  max-width: var(--ancho); margin: auto;
  padding: 74px 24px 72px;
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center;
}

/* Aurora: el degradado de marca como luz de fondo, no como relleno de texto. */
.aurora {
  position: absolute; inset: -10% 0 auto; height: 620px;
  background:
    radial-gradient(circle at 18% 30%, rgba(0, 114, 255, .30), transparent 52%),
    radial-gradient(circle at 62% 18%, rgba(138, 43, 226, .26), transparent 55%),
    radial-gradient(circle at 88% 52%, rgba(0, 224, 195, .14), transparent 50%);
  filter: blur(20px);
  pointer-events: none;
}

.hero-texto { position: relative; }

.hero h1 {
  font-size: clamp(48px, 7.8vw, 92px);
  font-weight: 800; letter-spacing: -.05em; line-height: 1.02;
}

.lead {
  margin-top: 26px;
  font-size: 18.5px; color: var(--texto-tenue);
  max-width: 34rem;
}

.hero-acciones { display: flex; flex-wrap: wrap; gap: 13px; margin-top: 32px; }

.btn-primario {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 54px; padding: 0 28px;
  border-radius: 13px;
  background: linear-gradient(100deg, var(--azul), var(--indigo));
  color: #fff; font-weight: 600; font-size: 16px; text-decoration: none;
  box-shadow: 0 12px 30px rgba(90, 59, 255, .34);
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), filter .2s var(--ease);
}
.btn-primario:hover {
  filter: brightness(1.1); transform: translateY(-2px);
  box-shadow: 0 18px 40px rgba(90, 59, 255, .42);
}

.btn-secundario {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 54px; padding: 0 26px;
  border-radius: 13px;
  background: rgba(255, 255, 255, .05); color: var(--texto);
  border: 1px solid var(--linea);
  font-weight: 500; font-size: 16px; text-decoration: none;
  transition: transform .2s var(--ease), border-color .2s var(--ease);
}
.btn-secundario:hover { border-color: var(--cian); transform: translateY(-2px); }

.btn-grande { min-height: 60px; padding: 0 36px; font-size: 17px; }

.tagline {
  margin-top: 28px; font-size: 15px; font-weight: 500;
  color: var(--texto-tenue); letter-spacing: -.01em;
}
.tagline b { color: var(--cian); font-weight: 600; }

/* ---------- Panel de dictado ---------- */

.dictado {
  position: relative;
  background: linear-gradient(165deg, var(--superficie), var(--fondo-alto));
  border: 1px solid var(--linea);
  border-radius: var(--radio-g);
  padding: 28px;
  box-shadow: 0 34px 80px rgba(0, 0, 0, .55);
}

/* Onda de voz: el gesto central del producto. Barras con alturas propias. */
.onda {
  display: flex; align-items: center; justify-content: center; gap: 5px;
  height: 54px;
}
.onda span {
  width: 5px; border-radius: 99px;
  background: linear-gradient(180deg, var(--cian), var(--indigo));
  animation: hablar 1.25s ease-in-out infinite;
}
.onda span:nth-child(1) { height: 16px; animation-delay: 0s; }
.onda span:nth-child(2) { height: 28px; animation-delay: .09s; }
.onda span:nth-child(3) { height: 42px; animation-delay: .18s; }
.onda span:nth-child(4) { height: 30px; animation-delay: .27s; }
.onda span:nth-child(5) { height: 50px; animation-delay: .36s; }
.onda span:nth-child(6) { height: 26px; animation-delay: .45s; }
.onda span:nth-child(7) { height: 38px; animation-delay: .54s; }
.onda span:nth-child(8) { height: 20px; animation-delay: .63s; }
.onda span:nth-child(9) { height: 14px; animation-delay: .72s; }

@keyframes hablar {
  0%, 100% { transform: scaleY(.45); opacity: .6; }
  50%      { transform: scaleY(1);   opacity: 1; }
}

.dictado-dicho {
  margin-top: 18px; text-align: center;
  font-size: 16.5px; font-weight: 500; color: var(--texto);
  line-height: 1.45;
}

.factura {
  margin-top: 24px; padding: 20px;
  border-radius: var(--radio);
  background: rgba(255, 255, 255, .04);
  border: 1px solid var(--linea);
}
.factura-top {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 12.5px; font-weight: 600;
  color: var(--texto-tenue); text-transform: uppercase; letter-spacing: .08em;
}
.factura-estado {
  padding: 4px 10px; border-radius: 999px;
  background: rgba(0, 224, 195, .14); color: var(--menta);
  text-transform: none; letter-spacing: 0; font-size: 11.5px;
}

.factura-datos { margin: 18px 0 0; display: grid; gap: 12px; }
.factura-datos > div {
  display: flex; justify-content: space-between; gap: 16px;
  padding-bottom: 12px; border-bottom: 1px solid var(--linea);
}
.factura-datos dt { color: var(--texto-tenue); font-size: 14px; }
.factura-datos dd { margin: 0; font-weight: 600; font-size: 14.5px; text-align: right; }

.factura-total {
  display: flex; justify-content: space-between; align-items: baseline;
  margin-top: 16px;
}
.factura-total span { color: var(--texto-tenue); font-size: 14px; }
.factura-total b {
  font-size: 26px; font-weight: 700; letter-spacing: -.03em;
  font-variant-numeric: tabular-nums;
}

/* ---------- Pasos ---------- */

.pasos-voz { max-width: var(--ancho); margin: auto; padding: 92px 24px 0; }
.pasos-voz h2 { font-size: clamp(30px, 4.4vw, 46px); font-weight: 800; }

.fila-pasos {
  margin-top: 42px;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px;
}
.fila { padding-top: 20px; border-top: 1px solid var(--linea); position: relative; }
.fila::before {
  content: ""; position: absolute; top: -1px; left: 0; width: 46px; height: 2px;
  background: linear-gradient(90deg, var(--cian), var(--indigo));
}
.fila h3 { font-size: 18px; font-weight: 600; }
.fila p { margin-top: 10px; color: var(--texto-tenue); font-size: 15.5px; }

/* ---------- Módulos ---------- */

.modulos { max-width: var(--ancho); margin: auto; padding: 92px 24px 0; }
.modulos h2 { font-size: clamp(30px, 4.4vw, 46px); font-weight: 800; }

.grid-modulos {
  margin-top: 40px;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}
.modulo {
  padding: 28px;
  border-radius: var(--radio-g);
  background: var(--fondo-alto);
  border: 1px solid var(--linea);
  transition: border-color .25s var(--ease), transform .25s var(--ease);
}
.modulo:hover { border-color: #3a4480; transform: translateY(-3px); }
.modulo.destacado {
  grid-column: span 2;
  background:
    radial-gradient(circle at 12% 20%, rgba(0, 114, 255, .18), transparent 58%),
    var(--fondo-alto);
}
.modulo h3 { font-size: 19px; font-weight: 600; }
.modulo p { margin-top: 11px; color: var(--texto-tenue); font-size: 15.5px; }

/* ---------- Arquitectura ---------- */

.arquitectura { max-width: var(--ancho); margin: auto; padding: 92px 24px 0; }
.arquitectura h2 { font-size: clamp(28px, 4vw, 42px); font-weight: 800; }
.sub { margin-top: 14px; color: var(--texto-tenue); font-size: 17px; }

.principios {
  list-style: none; margin: 38px 0 0; padding: 0;
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px;
  background: var(--linea);
  border: 1px solid var(--linea);
  border-radius: var(--radio-g);
  overflow: hidden;
}
.principios li {
  background: var(--fondo);
  padding: 26px 24px;
  display: grid; gap: 8px;
}
.principios b { font-size: 16.5px; font-weight: 600; color: var(--cian); }
.principios span { color: var(--texto-tenue); font-size: 15px; }

/* ---------- Cierre ---------- */

.cierre {
  max-width: var(--ancho); margin: 96px auto 88px;
  padding: 74px 32px;
  border-radius: var(--radio-g);
  background:
    radial-gradient(circle at 20% 20%, rgba(0, 114, 255, .26), transparent 56%),
    radial-gradient(circle at 78% 70%, rgba(138, 43, 226, .24), transparent 56%),
    var(--fondo-alto);
  border: 1px solid var(--linea);
  text-align: center;
}
.cierre h2 { font-size: clamp(28px, 4.2vw, 44px); font-weight: 800; }
.cierre p { margin-top: 14px; color: var(--texto-tenue); font-size: 17.5px; }
.cierre .btn-primario { margin-top: 32px; }

/* ---------- Pie ---------- */

.pie {
  max-width: var(--ancho); margin: auto;
  padding: 32px 24px 56px;
  border-top: 1px solid var(--linea);
  display: flex; flex-wrap: wrap; align-items: center; gap: 16px 28px;
}
.pie-marca {
  display: flex; align-items: center; gap: 9px;
  font-weight: 700; font-size: 17px; letter-spacing: -.03em;
}
.pie-nota { font-size: 13.5px; color: var(--texto-tenue); margin-left: auto; }

/* ---------- Entrada ---------- */

[data-anima] {
  transform: translateY(14px);
  transition: transform .6s var(--ease);
}
[data-anima].entra { transform: none; }

/* ---------- Adaptación ---------- */

@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; gap: 42px; padding-top: 46px; }
  .fila-pasos { grid-template-columns: 1fr 1fr; }
  .grid-modulos { grid-template-columns: 1fr 1fr; }
  .modulo.destacado { grid-column: span 2; }
  .top nav, .btn-top { display: none; }
  .menu-btn { display: flex; }
  .menu-movil[data-abierto] { display: flex; }
}

@media (max-width: 620px) {
  body { font-size: 16px; }
  .hero { padding: 34px 20px 48px; }
  .dictado { padding: 22px; }
  .fila-pasos { grid-template-columns: 1fr; gap: 22px; }
  .grid-modulos { grid-template-columns: 1fr; }
  .modulo.destacado { grid-column: span 1; }
  .principios { grid-template-columns: 1fr; }
  .pasos-voz, .modulos, .arquitectura { padding-top: 64px; }
  .cierre { padding: 54px 24px; margin: 68px auto; }
  .pie-nota { margin-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  [data-anima] { opacity: 1 !important; transform: none !important; }
  .onda span { transform: scaleY(.8); opacity: .9; }
}