/* Zerp · landing. Móvil primero, sin librerías. Mismos colores que la app. */
@font-face{font-family:"Bricolage Grotesque";src:url(/fuentes/bricolage-800.woff2) format("woff2");font-weight:800;font-display:swap}
@font-face{font-family:"Instrument Sans";src:url(/fuentes/instrument-sans.woff2) format("woff2");font-weight:400 700;font-display:swap}

:root{
  --bg:#f3f4f7; --surface:#fff; --surface-2:#eceef4; --line:#d9dce6;
  --fg:#16182a; --muted:#545a78; --accent:#3b3fd8; --accent-dark:#2c2fb0; --accent-soft:#e3e4fb;
  --ok:#11845b; --ok-soft:#dcf3e9; --warn:#8a5200; --warn-soft:#fbeed6; --bad:#b42840;
  --f-display:"Bricolage Grotesque","Segoe UI",system-ui,sans-serif;
  --f-body:"Instrument Sans","Segoe UI",system-ui,-apple-system,sans-serif;
  --radio:14px; --sombra:0 10px 30px rgba(22,24,42,.10);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.55 var(--f-body)}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent)}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.contenedor{width:100%;max-width:1120px;margin:0 auto;padding:0 16px}
.saltar{position:absolute;left:-999px;top:8px;background:var(--fg);color:#fff;padding:8px 12px;border-radius:8px;z-index:20}
.saltar:focus{left:8px}
h1,h2,h3{font-family:var(--f-display);font-weight:800;letter-spacing:-.02em;line-height:1.12;margin:0}
h2{font-size:clamp(28px,6vw,40px)}
p{margin:0}
.etiqueta{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);margin-bottom:10px}
section{padding:56px 0}
.cabecera-seccion{max-width:680px;margin-bottom:28px}
.cabecera-seccion p{color:var(--muted);margin-top:10px}

/* Botones */
.boton{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:12px 20px;border-radius:12px;
  font:600 16px/1.2 var(--f-body);text-decoration:none;border:1px solid transparent;cursor:pointer}
.boton.principal{background:var(--accent);color:#fff}
.boton.principal:hover{background:var(--accent-dark)}
.boton.secundario{background:var(--surface);color:var(--fg);border-color:var(--line)}
.boton.secundario:hover{border-color:var(--muted)}
/* Verde de WhatsApp oscurecido para que el texto blanco tenga contraste suficiente (AA) */
.boton.whatsapp{background:#0f7a43;color:#fff;margin:4px 0 8px}
.boton.whatsapp:hover{background:#0b6235}
.tramo .nombre-plan{font:inherit;font-weight:700}

/* Aviso de prelanzamiento */
.prelanzamiento{background:var(--fg);color:#fff;font-size:14.5px;text-align:center;padding:10px 16px}
.prelanzamiento a{color:#fff;font-weight:700}

/* Cabecera */
.cabecera{position:sticky;top:0;z-index:10;background:rgba(243,244,247,.92);backdrop-filter:saturate(1.4) blur(8px);border-bottom:1px solid var(--line)}
.cabecera .contenedor{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:64px}
.marca{display:flex;align-items:center;gap:10px;min-height:44px;font:800 24px/1 var(--f-display);color:var(--fg);text-decoration:none;letter-spacing:-.02em}
.marca img{width:30px;height:30px}
.menu{display:none;gap:22px}
.menu a{color:var(--fg);text-decoration:none;font-weight:600;font-size:15px}
.menu a:hover{color:var(--accent)}
.cabecera .boton{min-height:42px;padding:9px 16px}
@media (min-width:860px){.menu{display:flex}}

/* Portada */
.portada{padding:40px 0 56px}
.portada .contenedor{display:grid;gap:36px;align-items:center}
.portada h1{font-size:clamp(34px,8.6vw,58px)}
.portada .sub{font-size:clamp(17px,2.4vw,20px);color:var(--muted);margin-top:16px;max-width:560px}
.acciones{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.acciones .boton{flex:1 1 200px}
@media (min-width:520px){.acciones .boton{flex:0 0 auto}}
.enlace-guia{margin-top:14px}
.fundador{display:flex;gap:10px;align-items:flex-start;margin-top:20px;background:var(--ok-soft);color:#0b5d40;border-radius:12px;padding:12px 14px;font-size:15px;max-width:560px}
.fundador svg{flex:none;margin-top:2px}
.movil{position:relative;max-width:300px;margin:0 auto;border-radius:38px;padding:10px;background:#16182a;box-shadow:var(--sombra)}
.movil img{border-radius:29px;aspect-ratio:390/844;object-fit:cover;object-position:top}
@media (min-width:860px){.portada .contenedor{grid-template-columns:1.15fr .85fr}.portada{padding:64px 0 72px}}

/* Problema */
.problema{background:var(--surface)}
.rejilla{display:grid;gap:14px}
@media (min-width:700px){.rejilla.dos{grid-template-columns:1fr 1fr}.rejilla.tres{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1000px){.rejilla.tres{grid-template-columns:repeat(3,1fr)}}
.dolor{display:flex;gap:14px;align-items:flex-start;padding:16px;border:1px solid var(--line);border-radius:var(--radio);background:var(--bg)}
.dolor b{display:block;margin-bottom:2px}
.dolor p{color:var(--muted);font-size:16px}
.cierre{margin-top:22px;font:800 22px/1.2 var(--f-display);color:var(--accent)}

/* Iconos */
.icono{flex:none;width:44px;height:44px;border-radius:12px;display:grid;place-items:center;background:var(--accent-soft);color:var(--accent)}
.icono svg{width:24px;height:24px}

/* Funciones */
.funcion{background:var(--surface);border:1px solid var(--line);border-radius:var(--radio);padding:20px}
.funcion h3{font-size:19px;margin:14px 0 6px}
.funcion p{color:var(--muted);font-size:16px}

/* Capturas */
.capturas{background:var(--surface)}
.galeria{display:grid;gap:22px}
.galeria figure{margin:0}
.galeria figcaption{margin-top:10px;font-weight:600;text-align:center}
.pantalla-pc{border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:var(--sombra);background:var(--bg)}
.galeria .movil{max-width:250px}
@media (min-width:900px){.galeria{grid-template-columns:2fr 1fr 1fr;align-items:end}}

/* Próximamente */
.pronto{display:flex;gap:12px;align-items:center;background:var(--surface);border:1px dashed var(--line);border-radius:var(--radio);padding:14px 16px;font-weight:600}
.pronto .icono{background:var(--surface-2);color:var(--muted)}
.chapa{display:inline-block;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--warn);background:var(--warn-soft);border-radius:999px;padding:2px 9px;margin-left:auto;white-space:nowrap}

/* Historia */
.historia{background:var(--fg);color:#fff}
.historia .contenedor{max-width:820px}
.historia h2{color:#fff}
.historia p{font-size:19px;color:#d6d8ea;margin-top:16px}
.historia .etiqueta{color:#a9acf7}

/* Precio */
.precios{display:grid;gap:16px;align-items:stretch}
@media (min-width:860px){.precios{grid-template-columns:1fr 1fr}}
.plan{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:24px;display:flex;flex-direction:column;gap:14px}
.plan.destacado{border:2px solid var(--accent);box-shadow:var(--sombra)}
.importe{font:800 52px/1 var(--f-display)}
.importe small{font:600 17px var(--f-body);color:var(--muted)}
.lista{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.lista li{display:flex;gap:10px;align-items:flex-start}
.lista svg{flex:none;color:var(--ok);margin-top:3px}
.tramos{display:grid;gap:10px}
.tramo{display:flex;flex-wrap:wrap;justify-content:space-between;gap:4px 12px;align-items:center;background:var(--bg);border-radius:12px;padding:12px 14px}
.tramo b{font:800 18px var(--f-display)}
.nota{font-size:15px;color:var(--muted)}

/* Preguntas */
.preguntas{max-width:820px}
details{background:var(--surface);border:1px solid var(--line);border-radius:12px;margin-bottom:10px}
summary{cursor:pointer;list-style:none;padding:16px 48px 16px 16px;font-weight:700;position:relative}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";position:absolute;right:18px;top:12px;font:400 26px/1 var(--f-body);color:var(--accent)}
details[open] summary::after{content:"−"}
details p{padding:0 16px 16px;color:var(--muted)}

/* Formulario */
.contacto{background:var(--surface)}
.contacto .contenedor{display:grid;gap:28px}
@media (min-width:900px){.contacto .contenedor{grid-template-columns:.9fr 1.1fr}}
form{display:grid;gap:14px;background:var(--bg);border:1px solid var(--line);border-radius:18px;padding:20px}
.dos-campos{display:grid;gap:14px}
@media (min-width:560px){.dos-campos{grid-template-columns:1fr 1fr}}
.campo{display:flex;flex-direction:column;gap:6px}
.campo label,.grupo legend{font-weight:600;font-size:15px}
.campo .opcional{font-weight:400;color:var(--muted)}
.campo input,.campo textarea{font:inherit;color:inherit;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:12px;min-height:48px;width:100%}
.campo textarea{min-height:80px;resize:vertical}
.campo input[aria-invalid="true"]{border-color:var(--bad)}
.error{color:var(--bad);font-size:14px;min-height:0}
.grupo{border:0;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:8px}
.grupo legend{margin-bottom:6px;width:100%}
.opcion{display:flex;align-items:center;gap:8px;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:10px 14px;cursor:pointer;min-height:44px}
.opcion input{accent-color:var(--accent);width:18px;height:18px}
.casilla{display:flex;gap:10px;align-items:flex-start;font-size:15px}
.casilla input{accent-color:var(--accent);width:20px;height:20px;flex:none;margin-top:2px}
.legal-form{font-size:13.5px;color:var(--muted)}
.trampa{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.resultado{border-radius:12px;padding:14px 16px;font-weight:600}
.resultado.ok{background:var(--ok-soft);color:#0b5d40}
.resultado.mal{background:#f9e0e4;color:var(--bad)}
form .boton{width:100%}

/* Pie */
.pie{padding:32px 0;border-top:1px solid var(--line);font-size:15px;color:var(--muted)}
.pie .contenedor{display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;align-items:center}
.pie nav{display:flex;flex-wrap:wrap;gap:8px 18px}
.pie a{color:var(--muted)}

/* Páginas de texto (privacidad) */
.texto{max-width:760px;padding:40px 16px 64px;margin:0 auto}
.texto h1{font-size:clamp(30px,6vw,42px);margin-bottom:18px}
.texto h2{font-size:22px;margin:28px 0 8px}
.texto p,.texto li{color:#2c2f45;margin-bottom:10px}
/* Guía de inicio (guia.html) */
.guia h2{scroll-margin-top:80px}
.guia .indice{background:var(--surface);border:1px solid var(--line);border-radius:var(--radio);padding:14px 18px;margin:22px 0}
.guia .indice ol{margin:0;padding-left:22px;columns:2 220px;column-gap:28px}
.guia .indice li{margin-bottom:4px}
.guia .pasos{padding-left:22px}
.guia .recuadro{background:var(--accent-soft);border-radius:12px;padding:12px 16px;margin:14px 0}
.guia .recuadro.aviso{background:var(--warn-soft)}
.guia .recuadro b{display:block;margin-bottom:4px}
.guia .recuadro p{margin:0}
.guia .recuadro.minimo{background:var(--ok-soft)}
.guia .recuadro.minimo ol{margin:0 0 8px;padding-left:22px}
.guia .recuadro.minimo li{margin-bottom:4px}
.guia figure{margin:18px auto}
.guia .captura{max-width:240px}
.guia .captura .movil,.guia .fila-capturas .movil{max-width:none;margin:0;border-radius:30px;padding:8px}
.guia .captura .movil img,.guia .fila-capturas .movil img{border-radius:23px}
.guia figcaption{margin-top:8px;font-size:14px;color:var(--muted);text-align:center}
.guia .fila-capturas{display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 2px 10px;margin:18px 0 6px}
.guia .fila-capturas figure{flex:0 0 210px;margin:0;scroll-snap-align:start}
.guia .nota-capturas{font-size:14px;color:var(--muted)}
.sprite{position:absolute;width:0;height:0;overflow:hidden}
.intro{color:var(--muted);margin-top:12px}
.intro-correo{margin-top:16px}