/* sitio.css — Sitio público de Contabilidad Lite (IMC TI Software). Sin dependencias. */
:root{
  --marino:#0b2545;
  --marino-2:#13315c;
  --marino-3:#1d4673;
  --verde:#0b7a6f;          /* acento sobre fondo claro (contraste AA con blanco) */
  --verde-2:#0e9384;
  --verde-claro:#2dc7aa;    /* acento sobre fondo oscuro */
  --verde-fondo:#e7f5f2;
  --fondo:#f5f7fa;
  --superficie:#ffffff;
  --texto:#1c2a3a;
  --texto-2:#4a5b6e;
  --tenue:#6b7c8f;
  --borde:#dde4ec;
  --borde-2:#c7d2de;
  --ambar-fondo:#fff6e0;
  --ambar:#8a5a00;
  --radio:12px;
  --sombra:0 1px 2px rgba(11,37,69,.06),0 4px 16px rgba(11,37,69,.06);
  --ancho:1140px;
  --fuente:"Segoe UI",system-ui,-apple-system,Roboto,"Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--fuente);font-size:16px;line-height:1.6;color:var(--texto);background:var(--fondo)}
img,svg{max-width:100%}
h1,h2,h3,h4{color:var(--marino);line-height:1.25;margin:0 0 .5em;font-weight:700;letter-spacing:-.01em}
h1{font-size:clamp(1.85rem,4.2vw,2.75rem)}
h2{font-size:clamp(1.45rem,3vw,2rem)}
h3{font-size:1.15rem}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em;padding-left:1.25em}
li{margin:.25em 0}
a{color:var(--verde);text-underline-offset:2px}
a:hover{color:var(--marino-2)}
:focus-visible{outline:3px solid #f2b705;outline-offset:2px;border-radius:4px}
.contenedor{width:100%;max-width:var(--ancho);margin:0 auto;padding:0 16px}
.saltar{position:absolute;left:-9999px;top:8px;background:var(--marino);color:#fff;padding:8px 14px;border-radius:6px;z-index:100}
.saltar:focus{left:8px}
.oculto{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.ico{width:1.25em;height:1.25em;flex:none;vertical-align:-.2em}

/* ---------- Encabezado ---------- */
.cabecera{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.97);border-bottom:1px solid var(--borde);backdrop-filter:saturate(1.2) blur(6px)}
.cabecera .contenedor{display:flex;align-items:center;gap:16px;min-height:68px}
.marca{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--marino);font-weight:700;font-size:1.1rem;white-space:nowrap}
.marca svg{width:36px;height:36px}
.marca small{display:block;font-size:.7rem;font-weight:600;color:var(--tenue);letter-spacing:.04em;text-transform:uppercase;line-height:1}
.marca span{line-height:1.15}
.menu{margin-left:auto;display:flex;align-items:center;gap:4px}
.menu a{color:var(--texto);text-decoration:none;font-size:.95rem;font-weight:600;padding:8px 10px;border-radius:8px}
.menu a:hover{background:var(--fondo);color:var(--marino)}
.menu a[aria-current="page"]{color:var(--verde);background:var(--verde-fondo)}
.menu .boton{margin-left:8px;color:#fff;background:var(--verde)}
.menu .boton:hover{background:var(--marino-2);color:#fff}
.menu .boton[aria-current="page"]{color:#fff;background:var(--marino-2)}
.hamburguesa{display:none;margin-left:auto;background:none;border:1px solid var(--borde-2);border-radius:8px;padding:8px;color:var(--marino);cursor:pointer}
.hamburguesa svg{width:24px;height:24px;display:block}
@media (max-width:960px){
  .js .hamburguesa{display:block}
  .js .menu{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:#fff;border-bottom:1px solid var(--borde);padding:8px 16px 16px;box-shadow:0 12px 24px rgba(11,37,69,.12)}
  .js .menu.abierto{display:flex}
  .js .menu a{padding:12px 8px;border-bottom:1px solid var(--borde)}
  .js .menu .boton{margin:12px 0 0;text-align:center;border-bottom:0}
  .menu{flex-wrap:wrap}
}

/* ---------- Botones ---------- */
.boton{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:10px;border:2px solid transparent;background:var(--verde);color:#fff;font-weight:700;font-size:1rem;text-decoration:none;cursor:pointer;line-height:1.2;font-family:inherit}
.boton:hover{background:var(--marino-2);color:#fff}
.boton.secundario{background:transparent;color:var(--marino);border-color:var(--borde-2)}
.boton.secundario:hover{border-color:var(--marino);background:#fff;color:var(--marino)}
.boton.claro{background:#fff;color:var(--marino)}
.boton.claro:hover{background:var(--verde-fondo);color:var(--marino)}
.boton.contorno-claro{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.boton.contorno-claro:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.boton.whatsapp{background:#128c4a}
.boton.whatsapp:hover{background:#0b6b37}
.boton.pequeno{padding:8px 14px;font-size:.92rem}
.botones{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}

/* ---------- Portada ---------- */
.portada{background:linear-gradient(160deg,var(--marino) 0%,var(--marino-2) 60%,#0f4d5c 100%);color:#e6eef8;padding:72px 0 80px;position:relative;overflow:hidden}
.portada::after{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;border:60px solid rgba(45,199,170,.08);pointer-events:none}
.portada h1{color:#fff;max-width:820px}
.portada p.lead{font-size:1.15rem;color:#c8d6e8;max-width:720px}
.etiqueta{display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--verde-claro);margin-bottom:12px}
.portada .boton.contorno-claro{color:#fff}
.portada-chica{padding:48px 0 52px}
.portada-chica h1{font-size:clamp(1.7rem,3.6vw,2.4rem)}
.migas{font-size:.88rem;margin-bottom:14px;color:#a9bdd6}
.migas a{color:#cfe0f3}
.puntos{display:flex;flex-wrap:wrap;gap:10px 22px;list-style:none;padding:0;margin:28px 0 0;color:#cfe0f3;font-size:.95rem}
.puntos li{display:flex;align-items:center;gap:8px;margin:0}
.puntos .ico{color:var(--verde-claro)}

/* ---------- Secciones ---------- */
.seccion{padding:64px 0}
.seccion.blanca{background:var(--superficie);border-top:1px solid var(--borde);border-bottom:1px solid var(--borde)}
.seccion .intro{max-width:720px;margin-bottom:32px;color:var(--texto-2)}
.seccion .intro h2{margin-bottom:.35em}
.centro{text-align:center;margin-left:auto;margin-right:auto}

.rejilla{display:grid;gap:20px}
.r2{grid-template-columns:repeat(auto-fit,minmax(min(100%,420px),1fr))}
.r3{grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr))}
.r4{grid-template-columns:repeat(auto-fit,minmax(min(100%,230px),1fr))}

.tarjeta{background:var(--superficie);border:1px solid var(--borde);border-radius:var(--radio);padding:24px;box-shadow:var(--sombra);display:flex;flex-direction:column}
.tarjeta h3{margin-bottom:.4em}
.tarjeta p{color:var(--texto-2)}
.tarjeta .pie-tarjeta{margin-top:auto;padding-top:12px;display:flex;flex-wrap:wrap;gap:10px 16px;align-items:center}
.tarjeta .enlace{font-weight:700;text-decoration:none;display:inline-flex;align-items:center;gap:6px}
.tarjeta .enlace:hover{text-decoration:underline}
.icono-caja{width:48px;height:48px;border-radius:12px;background:var(--verde-fondo);color:var(--verde);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.icono-caja svg{width:26px;height:26px}
.icono-caja.marino{background:#e6edf6;color:var(--marino-2)}

.insignia{display:inline-block;font-size:.75rem;font-weight:700;padding:3px 10px;border-radius:999px;background:var(--verde-fondo);color:var(--verde);letter-spacing:.02em;vertical-align:middle}
.insignia.pronto{background:var(--ambar-fondo);color:var(--ambar)}
.insignia.marino{background:#e6edf6;color:var(--marino-2)}
.titulo-insignia{display:flex;flex-wrap:wrap;align-items:center;gap:8px 10px;margin-bottom:.4em}
.titulo-insignia h3{margin:0}

/* Destacado (XML Control Lite) */
.destacado{display:grid;grid-template-columns:1.2fr 1fr;gap:32px;align-items:center;background:linear-gradient(135deg,#0f1f3a,#1e3a5f);color:#dbe6f3;border-radius:16px;padding:40px;box-shadow:var(--sombra)}
.destacado h2,.destacado h3{color:#fff}
.destacado p{color:#c4d3e6}
.destacado ul{list-style:none;padding:0;margin:0}
.destacado li{display:flex;gap:10px;align-items:flex-start;margin:0 0 10px}
.destacado li .ico{color:#7fb3ff;margin-top:3px}
.destacado .insignia{background:rgba(127,179,255,.16);color:#bcd6ff}
@media (max-width:820px){.destacado{grid-template-columns:1fr;padding:28px 20px}}

/* Pasos */
.pasos{counter-reset:paso;list-style:none;padding:0;margin:0;display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(min(100%,240px),1fr))}
.pasos li{background:var(--superficie);border:1px solid var(--borde);border-radius:var(--radio);padding:24px;margin:0;position:relative}
.pasos li::before{counter-increment:paso;content:counter(paso);display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;background:var(--marino);color:#fff;font-weight:700;margin-bottom:12px}
.pasos h3{margin-bottom:.3em}
.pasos p{color:var(--texto-2);margin:0}

/* Ventajas */
.ventaja{display:flex;gap:14px;align-items:flex-start}
.ventaja .icono-caja{margin:0;width:44px;height:44px;flex:none}
.ventaja h3{font-size:1.05rem;margin-bottom:.25em}
.ventaja p{margin:0;color:var(--texto-2);font-size:.97rem}

/* Listas con palomita */
.lista-check{list-style:none;padding:0;margin:0 0 1em}
.lista-check li{display:flex;gap:10px;align-items:flex-start;margin:0 0 10px}
.lista-check li .ico{color:var(--verde);margin-top:3px}

/* Ficha de herramienta */
.ficha{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:32px;align-items:start}
.ficha .lateral{position:sticky;top:88px}
@media (max-width:900px){.ficha{grid-template-columns:1fr}.ficha .lateral{position:static}}
.bloque{background:var(--superficie);border:1px solid var(--borde);border-radius:var(--radio);padding:28px;margin-bottom:24px}
.bloque h2{font-size:1.35rem}
.datos{list-style:none;padding:0;margin:0}
.datos li{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid var(--borde);margin:0;font-size:.95rem}
.datos li:last-child{border-bottom:0}
.datos span:first-child{color:var(--tenue)}
.datos span:last-child{text-align:right;font-weight:600;color:var(--texto)}
.lateral .boton{width:100%;margin-top:12px}
.nota{font-size:.9rem;color:var(--tenue)}
.aviso{background:var(--ambar-fondo);border:1px solid #f0d48a;color:#5c3d00;border-radius:10px;padding:14px 16px;font-size:.95rem}
.aviso.info{background:#eaf2fb;border-color:#c5d9ef;color:#17375e}

/* Tabla comparativa */
.tabla-envoltura{overflow-x:auto;border:1px solid var(--borde);border-radius:var(--radio);background:#fff}
table{border-collapse:collapse;width:100%;font-size:.95rem}
th,td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--borde);vertical-align:top}
th{background:#f0f4f8;color:var(--marino);font-weight:700}
tr:last-child td{border-bottom:0}

/* Preguntas frecuentes */
.faq details{background:var(--superficie);border:1px solid var(--borde);border-radius:10px;margin-bottom:12px}
.faq summary{cursor:pointer;padding:16px 20px;font-weight:700;color:var(--marino);list-style:none;display:flex;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.4rem;line-height:1;color:var(--verde)}
.faq details[open] summary::after{content:"\2212"}
.faq details > div{padding:0 20px 16px;color:var(--texto-2)}
.faq h2{margin-top:32px}

/* Texto legal */
.legal{max-width:820px}
.legal h2{font-size:1.3rem;margin-top:1.8em}
.legal h3{font-size:1.05rem;margin-top:1.4em}
.legal p,.legal li{color:var(--texto-2)}

/* Llamada a la acción */
.cta{background:linear-gradient(135deg,var(--verde) 0%,#0b5f6b 100%);color:#e8fbf7;border-radius:16px;padding:40px;display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between}
.cta h2{color:#fff;margin-bottom:.25em}
.cta p{margin:0;color:#d4f3ec;max-width:620px}
.cta .botones{margin-top:0}
@media (max-width:600px){.cta{padding:28px 20px}}

/* Contacto */
.contacto-tarjeta .icono-caja.wa{background:#e5f6ec;color:#128c4a}

/* ---------- Formularios (descargas) ---------- */
.formulario{max-width:560px;margin:0 auto;background:var(--superficie);border:1px solid var(--borde);border-radius:var(--radio);padding:32px;box-shadow:var(--sombra)}
.formulario.ancho{max-width:760px}
.formulario h1{font-size:1.6rem}
.formulario .sub{color:var(--texto-2);margin-bottom:18px}
.formulario label{display:block;font-size:.9rem;font-weight:600;color:var(--texto);margin:16px 0 6px}
.formulario input,.formulario select{width:100%;padding:12px;border:1px solid var(--borde-2);border-radius:8px;font-size:1rem;font-family:inherit;color:var(--texto);background:#fff}
.formulario input:focus,.formulario select:focus{outline:3px solid rgba(14,147,132,.25);border-color:var(--verde-2)}
.formulario .check{display:flex;gap:10px;align-items:flex-start;font-weight:400;font-size:.93rem;color:var(--texto-2)}
.formulario .check input{width:auto;margin-top:4px}
.formulario button,.formulario .boton{display:flex;align-items:center;justify-content:center;width:100%;margin-top:22px;padding:13px 22px;border:0;border-radius:10px;background:var(--verde);color:#fff;font:700 1rem/1.2 var(--fuente);cursor:pointer;text-decoration:none}
.formulario button:hover,.formulario .boton:hover{background:var(--marino-2);color:#fff}
.formulario .err{background:#fdecea;border:1px solid #f5c2bc;color:#8a1f12;padding:12px 14px;border-radius:8px;font-size:.93rem;margin-top:16px}
.formulario .ok{background:#e7f5ee;border:1px solid #b5e0c8;color:#14532d;padding:16px;border-radius:8px;line-height:1.55}
.formulario .pie{display:none}

/* ---------- Pie ---------- */
.pie-sitio{background:#081a33;color:#a9bbd2;padding:56px 0 28px;margin-top:0;font-size:.95rem}
.pie-sitio a{color:#d3e0ef;text-decoration:none}
.pie-sitio a:hover{color:#fff;text-decoration:underline}
.pie-sitio .columnas{display:grid;gap:32px;grid-template-columns:1.4fr repeat(3,1fr)}
@media (max-width:860px){.pie-sitio .columnas{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.pie-sitio .columnas{grid-template-columns:1fr}}
.pie-sitio h2{color:#fff;font-size:.82rem;text-transform:uppercase;letter-spacing:.08em;margin-bottom:12px}
.pie-sitio ul{list-style:none;padding:0;margin:0}
.pie-sitio li{margin:0 0 8px}
.pie-sitio .marca{color:#fff}
.pie-sitio .marca small{color:#8aa2c0}
.pie-sitio .legal-pie{border-top:1px solid #1d3355;margin-top:40px;padding-top:20px;display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;font-size:.88rem;color:#8aa2c0}

@media (max-width:600px){
  .seccion{padding:44px 0}
  .portada{padding:48px 0 56px}
  .bloque,.tarjeta{padding:20px}
  .formulario{padding:22px 18px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
@media print{.cabecera,.pie-sitio,.cta,.hamburguesa{display:none}body{background:#fff}}