/* =====================================================================
   WebCodeCol · Página del asistente — estilo Apple (claro/oscuro)
   ===================================================================== */

:root {
  --fondo: #fbfbfd;
  --fondo-2: #f5f5f7;
  --superficie: #ffffff;
  --texto: #1d1d1f;
  --texto-2: #6e6e73;
  --borde: rgba(0, 0, 0, 0.08);
  --acento: #0071e3;
  --acento-hover: #0077ed;
  --nav: rgba(251, 251, 253, 0.8);
  --wa-fondo: #efeae2;
  --wa-cliente: #ffffff;
  --wa-ia: #d9fdd3;
  --wa-texto: #111b21;
  --sombra: 0 2px 6px rgba(0, 0, 0, 0.04), 0 16px 40px rgba(0, 0, 0, 0.06);
  --fuente: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", "Segoe UI", Roboto, Arial, sans-serif;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --fondo: #000000;
    --fondo-2: #0b0b0c;
    --superficie: #161617;
    --texto: #f5f5f7;
    --texto-2: #a1a1a6;
    --borde: rgba(255, 255, 255, 0.1);
    --acento: #2997ff;
    --acento-hover: #47a6ff;
    --nav: rgba(22, 22, 23, 0.8);
    --wa-fondo: #0b141a;
    --wa-cliente: #202c33;
    --wa-ia: #005c4b;
    --wa-texto: #e9edef;
    --sombra: 0 0 0 1px rgba(255, 255, 255, 0.06);
    color-scheme: dark;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 64px; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--fondo);
  color: var(--texto);
  font-family: var(--fuente);
  font-size: 17px;
  line-height: 1.47;
  letter-spacing: -0.022em;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--acento); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { margin: 0; font-weight: 700; }
p { margin: 0; }
.mono { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: .92em; }

/* ------------------------------------------------------------ navegación */
.nav {
  position: sticky; top: 0; z-index: 10;
  background: var(--nav);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--borde);
}
.nav-contenido {
  max-width: 1080px; margin: 0 auto; height: 52px; padding: 0 22px;
  display: flex; align-items: center; gap: 28px;
}
.nav-marca { display: flex; align-items: center; gap: 10px; color: var(--texto); font-weight: 600; font-size: 17px; }
.nav-marca:hover { text-decoration: none; }
.logo {
  width: 28px; height: 28px; border-radius: 8px; display: grid; place-items: center;
  background: linear-gradient(145deg, #1d1d1f, #48484a); color: #fff; font-size: 14px; font-weight: 700;
}
@media (prefers-color-scheme: dark) { .logo { background: linear-gradient(145deg, #f5f5f7, #c7c7cc); color: #000; } }
.nav-enlaces { display: flex; gap: 24px; margin-left: auto; }
.nav-enlaces a { color: var(--texto); font-size: 13px; opacity: .8; }
.nav-enlaces a:hover { opacity: 1; text-decoration: none; }

/* ------------------------------------------------------------ botones */
.boton {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 24px; border-radius: 980px;
  background: var(--acento); color: #fff; font-size: 17px; font-weight: 500;
  transition: background .2s, transform .1s;
}
.boton:hover { background: var(--acento-hover); text-decoration: none; }
.boton:active { transform: scale(.98); }
.boton-chico { padding: 6px 14px; font-size: 13px; }
.boton-secundario { background: transparent; color: var(--acento); box-shadow: inset 0 0 0 1px var(--acento); }
.boton-secundario:hover { background: var(--acento); color: #fff; }
.enlace-flecha { font-size: 17px; }
.enlace-flecha::after { content: " ›"; }

/* ------------------------------------------------------------ hero */
.hero {
  max-width: 1080px; margin: 0 auto; padding: 88px 22px 72px;
  display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); gap: 56px; align-items: center;
}
.eyebrow { color: #bf4800; font-size: 17px; font-weight: 600; margin-bottom: 10px; }
@media (prefers-color-scheme: dark) { .eyebrow { color: #ff8a3d; } }
.hero h1 { font-size: clamp(40px, 6vw, 64px); line-height: 1.05; letter-spacing: -0.035em; }
.degradado {
  background: linear-gradient(90deg, #0071e3 0%, #7a3cff 55%, #e0457b 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.bajada { font-size: clamp(19px, 2vw, 21px); color: var(--texto-2); margin-top: 20px; max-width: 560px; line-height: 1.4; }
.bajada.centro { margin: 14px auto 0; text-align: center; }
.hero-acciones { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; margin-top: 32px; }

/* teléfono con conversación de ejemplo */
.telefono {
  justify-self: center; width: 100%; max-width: 330px; padding: 12px; text-align: left;
  border-radius: 52px; background: #1d1d1f;
  box-shadow: 0 40px 80px rgba(0, 0, 0, .18), inset 0 0 0 2px #3a3a3c;
  animation: flotar 6s ease-in-out infinite;
}
@keyframes flotar { 50% { transform: translateY(-8px); } }
@media (prefers-reduced-motion: reduce) { .telefono { animation: none; } html { scroll-behavior: auto; } }
.telefono-pantalla { border-radius: 42px; overflow: hidden; background: var(--wa-fondo); }
.wa-cabecera {
  display: flex; align-items: center; gap: 10px; padding: 38px 16px 12px;
  background: #008069; color: #fff;
}
@media (prefers-color-scheme: dark) { .wa-cabecera { background: #202c33; } }
.wa-cabecera strong { display: block; font-size: 15px; letter-spacing: 0; }
.wa-cabecera small { font-size: 12px; opacity: .85; }
.wa-avatar { width: 34px; height: 34px; border-radius: 50%; background: #fff; color: #1d1d1f; display: grid; place-items: center; font-weight: 700; font-size: 14px; }
.wa-chat { display: flex; flex-direction: column; gap: 6px; padding: 14px 12px 22px; font-size: 13.5px; letter-spacing: 0; line-height: 1.35; }
.wa {
  max-width: 84%; padding: 7px 10px; border-radius: 10px; color: var(--wa-texto);
  box-shadow: 0 1px 1px rgba(0, 0, 0, .08);
  opacity: 0; animation: aparecer .4s ease forwards;
}
.wa.cliente { align-self: flex-start; background: var(--wa-cliente); border-top-left-radius: 2px; }
.wa.ia { align-self: flex-end; background: var(--wa-ia); border-top-right-radius: 2px; }
.wa-chat > :nth-child(1) { animation-delay: .2s; }
.wa-chat > :nth-child(2) { animation-delay: .8s; }
.wa-chat > :nth-child(3) { animation-delay: 1.4s; }
.wa-chat > :nth-child(4) { animation-delay: 1.6s; }
.wa-chat > :nth-child(5) { animation-delay: 2.2s; }
.wa-chat > :nth-child(6) { animation-delay: 2.8s; }
.wa-chat > :nth-child(7) { animation-delay: 3.4s; }
.wa-chat > :nth-child(8) { animation-delay: 4s; }
@keyframes aparecer { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .wa, .wa-nota { animation: none; opacity: 1; } }
.wa-audio { display: flex; align-items: center; gap: 8px; width: 70%; }
.wa-audio .play { color: #54656f; font-size: 11px; }
.wa-audio .onda {
  flex: 1; height: 16px;
  background: repeating-linear-gradient(90deg, #8696a0 0 2px, transparent 2px 5px);
  opacity: .7; border-radius: 2px;
}
.wa-audio small { color: #667781; font-size: 11px; }
.wa-nota { align-self: flex-start; font-size: 11.5px; color: #667781; font-style: italic; margin: -2px 0 2px 6px; opacity: 0; animation: aparecer .4s ease forwards; }
@media (prefers-color-scheme: dark) { .wa-nota, .wa-audio small { color: #8696a0; } }
.wa-imagen { display: flex; flex-direction: column; gap: 6px; padding: 4px 4px 7px; }
.wa-logo {
  display: grid; place-items: center; height: 84px; border-radius: 8px;
  background: linear-gradient(135deg, #ff9f0a, #ff375f); color: #fff; font-weight: 800; font-size: 20px; letter-spacing: -0.02em;
}

/* ------------------------------------------------------------ secciones */
.seccion { max-width: 1080px; margin: 0 auto; padding: 96px 22px; text-align: center; }
.seccion h2 { font-size: clamp(32px, 5vw, 48px); line-height: 1.08; letter-spacing: -0.03em; }
.seccion + .seccion { border-top: 1px solid var(--borde); }

.pasos {
  list-style: none; padding: 0; margin: 56px 0 0;
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; text-align: left;
}
.pasos li { background: var(--superficie); border-radius: 22px; padding: 28px 24px; box-shadow: var(--sombra); }
.paso-num {
  display: grid; place-items: center; width: 36px; height: 36px; border-radius: 50%;
  background: var(--acento); color: #fff; font-weight: 700; font-size: 16px; margin-bottom: 18px;
}
.pasos h3 { font-size: 21px; margin-bottom: 8px; letter-spacing: -0.02em; }
.pasos p { color: var(--texto-2); font-size: 15px; }

.bento {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px;
  margin-top: 56px; text-align: left;
}
.celda { background: var(--superficie); border-radius: 22px; padding: 30px 28px; box-shadow: var(--sombra); }
.celda.grande { grid-column: span 2; }
.celda h3 { font-size: 24px; letter-spacing: -0.025em; margin-bottom: 8px; }
.celda p { color: var(--texto-2); font-size: 16px; }
.icono-grande { display: block; font-size: 38px; margin-bottom: 16px; line-height: 1; }
.estados { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.estados span {
  padding: 5px 12px; border-radius: 980px; font-size: 13px; font-weight: 600;
  color: var(--c); background: color-mix(in srgb, var(--c) 13%, transparent);
}

/* ------------------------------------------------------------ ingreso */
.ingreso { text-align: left; }
.ingreso-tarjeta {
  display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: 40px; align-items: center;
  padding: 56px; border-radius: 30px;
  background: linear-gradient(160deg, var(--superficie), var(--fondo-2));
  box-shadow: var(--sombra);
}
.lista-ingreso { margin: 26px 0 0; padding-left: 22px; display: grid; gap: 12px; color: var(--texto-2); }
.lista-ingreso strong { color: var(--texto); }
.lista-ingreso li::marker { color: var(--acento); font-weight: 700; }
.nota { margin-top: 20px; font-size: 14px; color: var(--texto-2); }
.roles { display: grid; gap: 16px; }
.rol { background: var(--fondo); border-radius: 18px; padding: 22px 24px; border: 1px solid var(--borde); }
.rol h3 { font-size: 19px; margin-bottom: 6px; }
.rol p { color: var(--texto-2); font-size: 15px; }

/* ------------------------------------------------------------ pie */
.pie {
  max-width: 1080px; margin: 0 auto; padding: 24px 22px 40px;
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  font-size: 12px; color: var(--texto-2); border-top: 1px solid var(--borde);
}

/* ------------------------------------------------------------ responsive */
@media (max-width: 980px) {
  .pasos { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .bento { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ingreso-tarjeta { grid-template-columns: 1fr; padding: 40px 32px; }
}
@media (max-width: 760px) {
  .nav-enlaces { display: none; }
  .nav-contenido { justify-content: space-between; padding: 0 16px; }
  .hero { grid-template-columns: 1fr; padding: 48px 16px 56px; gap: 48px; text-align: center; }
  .bajada { margin-left: auto; margin-right: auto; }
  .hero-acciones { justify-content: center; }
  .seccion { padding: 72px 16px; }
  .pasos, .bento { grid-template-columns: 1fr; }
  .celda.grande { grid-column: auto; }
  .ingreso-tarjeta { padding: 32px 22px; border-radius: 24px; }
  .pie { padding: 24px 16px 32px; }
}