/* ==========================================================================
   KONTO — hoja de estilos del sitio comercial (konto.bestsolu.com)
   Una sola hoja compartida por las cinco páginas.
   Paleta tomada de la aplicación real (preset «bosque»): verde + teal sobre
   tinta azul profunda. Sin frameworks, sin build.
   ========================================================================== */

/* --- 1. Tokens de color, tipografía y medidas ---------------------------- */
:root{
  /* Marca */
  --verde:        #22c55e;   /* acento principal, sobre fondo oscuro */
  --verde-tinta:  #15803d;   /* misma familia, legible sobre papel */
  --teal:         #14b8a6;   /* acento secundario */
  --teal-tinta:   #0f766e;

  /* Superficies */
  --tinta:        #0b1020;   /* fondo oscuro (hero, pie) */
  --tinta-2:      #131b33;   /* panel dentro de lo oscuro */
  --papel:        #f4f7f4;   /* fondo claro de la página */
  --panel:        #ffffff;   /* tarjetas */
  --linea:        #dfe5e0;
  --linea-oscura: #24304f;

  /* Texto */
  --txt:          #12180f;   /* texto principal sobre papel */
  --txt-suave:    #4d5a52;   /* secundario sobre papel */
  --txt-claro:    #eef3ef;   /* principal sobre tinta */
  --txt-claro-2:  #a8b6c6;   /* secundario sobre tinta */

  --grad: linear-gradient(100deg, var(--verde) 0%, var(--teal) 100%);

  /* Tipografía: dos familias, como en la aplicación */
  --font-head: 'Bricolage Grotesque', 'Segoe UI', system-ui, sans-serif;
  --font-body: 'Hanken Grotesk', system-ui, -apple-system, 'Segoe UI', sans-serif;

  /* Medidas */
  --ancho: 1140px;
  --radio: 14px;
  --sombra: 0 1px 2px rgba(16,24,20,.05), 0 8px 24px rgba(16,24,20,.06);
}

/* --- 2. Base ------------------------------------------------------------- */
*,*::before,*::after{box-sizing:border-box}

html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{animation-duration:.01ms!important;transition-duration:.01ms!important}
}

body{
  margin:0;
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.65;
  color:var(--txt);
  background:var(--papel);
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,h4{font-family:var(--font-head);line-height:1.15;margin:0 0 .5em;letter-spacing:-.02em}
h1{font-size:clamp(2.1rem,1.4rem + 2.6vw,3.3rem);font-weight:800}
h2{font-size:clamp(1.6rem,1.2rem + 1.5vw,2.3rem);font-weight:700}
h3{font-size:1.2rem;font-weight:700}
p{margin:0 0 1rem}
a{color:var(--verde-tinta);text-decoration-thickness:1px;text-underline-offset:3px}
img{max-width:100%;height:auto}
ul{margin:0 0 1rem;padding-left:1.15rem}
li{margin-bottom:.35rem}

/* Foco visible en TODO lo accionable (requisito de accesibilidad) */
a:focus-visible,button:focus-visible,input:focus-visible,
select:focus-visible,textarea:focus-visible,summary:focus-visible{
  outline:3px solid var(--teal-tinta);
  outline-offset:2px;
  border-radius:4px;
}
.oscuro a:focus-visible,.oscuro button:focus-visible{outline-color:var(--verde)}

/* Salto al contenido para lectores de pantalla y teclado */
.saltar{
  position:absolute;left:-9999px;top:0;z-index:100;
  background:var(--tinta);color:#fff;padding:.7rem 1.1rem;border-radius:0 0 8px 0;
}
.saltar:focus{left:0}

.contenedor{width:min(100% - 2.5rem,var(--ancho));margin-inline:auto}

/* Secciones: ritmo vertical con aire */
section{padding:clamp(3rem,6vw,5.5rem) 0}
.seccion-titulo{max-width:62ch;margin-bottom:2.5rem}
.seccion-titulo p{color:var(--txt-suave);font-size:1.06rem;margin-bottom:0}

.antetitulo{
  font-family:var(--font-head);font-size:.74rem;font-weight:700;
  letter-spacing:.16em;text-transform:uppercase;
  color:var(--teal-tinta);margin:0 0 .7rem;
}
.oscuro .antetitulo{color:var(--verde)}

/* --- 3. Botones ---------------------------------------------------------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  font-family:var(--font-head);font-weight:700;font-size:.97rem;
  padding:.78rem 1.4rem;border-radius:10px;border:1px solid transparent;
  text-decoration:none;cursor:pointer;transition:transform .12s ease,box-shadow .12s ease,background .12s ease;
}
.btn:hover{transform:translateY(-1px)}
.btn.btn-primario{background:var(--grad);color:#06210f;box-shadow:0 6px 18px rgba(34,197,94,.28)}
.btn.btn-primario:hover{box-shadow:0 10px 26px rgba(34,197,94,.36)}
.btn.btn-secundario{background:transparent;color:var(--txt);border-color:var(--linea)}
.btn.btn-secundario:hover{border-color:var(--verde-tinta);color:var(--verde-tinta)}
.oscuro .btn.btn-secundario{color:var(--txt-claro);border-color:var(--linea-oscura)}
.oscuro .btn.btn-secundario:hover{border-color:var(--verde);color:var(--verde)}
.btn-bloque{width:100%}

/* --- 4. Encabezado y navegación ----------------------------------------- */
.cabecera{
  position:sticky;top:0;z-index:50;
  background:rgba(244,247,244,.9);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--linea);
}
.cabecera .contenedor{display:flex;align-items:center;gap:1.2rem;min-height:70px}
.marca{display:flex;align-items:center;gap:.55rem;text-decoration:none;flex:0 0 auto}
.marca img{height:26px;width:auto;display:block}
.marca span{
  font-family:var(--font-head);font-weight:800;font-size:1.15rem;letter-spacing:-.01em;
  color:var(--txt);
}
.nav{margin-left:auto;display:flex;align-items:center;gap:1.6rem}
.nav a{
  font-family:var(--font-head);font-weight:600;font-size:.95rem;
  color:var(--txt-suave);text-decoration:none;padding:.3rem 0;
  border-bottom:2px solid transparent;
}
.nav a:hover{color:var(--txt)}
.nav a[aria-current="page"]{color:var(--txt);border-bottom-color:var(--verde)}
.nav .btn{margin-left:.4rem}
.nav a.entrar{color:var(--teal-tinta);font-weight:700}
.nav a.entrar:hover{color:var(--verde-tinta)}

/* Botón hamburguesa: sólo en móvil */
.nav-toggle{
  display:none;margin-left:auto;background:none;border:1px solid var(--linea);
  border-radius:9px;padding:.5rem .6rem;cursor:pointer;line-height:0;
}
.nav-toggle svg{width:22px;height:22px;stroke:var(--txt)}
.nav-toggle .icono-cerrar{display:none}
.nav-toggle[aria-expanded="true"] .icono-abrir{display:none}
.nav-toggle[aria-expanded="true"] .icono-cerrar{display:block}

@media (max-width:900px){
  .nav-toggle{display:block}
  .nav{
    position:fixed;inset:70px 0 auto 0;
    flex-direction:column;align-items:stretch;gap:0;
    background:var(--panel);border-bottom:1px solid var(--linea);
    padding:.6rem 1.25rem 1.2rem;margin:0;
    box-shadow:var(--sombra);
  }
  /* Respaldo sin JavaScript: en móvil el menú sólo se ve si el botón está
     abierto, así no queda desplegado encima del contenido. */
  .nav{display:none}
  .nav-toggle[aria-expanded="true"] + .nav{display:flex}
  .nav[hidden]{display:none}
  .nav a{padding:.85rem 0;border-bottom:1px solid var(--linea)}
  .nav a[aria-current="page"]{border-bottom-color:var(--linea);color:var(--verde-tinta)}
  .nav .btn{margin:.9rem 0 0;justify-content:center}
}

/* --- 5. Hero ------------------------------------------------------------- */
.oscuro{background:var(--tinta);color:var(--txt-claro)}
.oscuro h1,.oscuro h2,.oscuro h3{color:var(--txt-claro)}
.oscuro p{color:var(--txt-claro-2)}
.oscuro a{color:var(--verde)}

.hero{
  position:relative;overflow:hidden;
  padding:clamp(3.5rem,7vw,6rem) 0 clamp(3.5rem,7vw,5.5rem);
}
/* Halo tenue: acento de marca, no degradado de plantilla */
.hero::before{
  content:"";position:absolute;top:-45%;right:-10%;width:60%;aspect-ratio:1;
  background:radial-gradient(circle,rgba(20,184,166,.18) 0%,transparent 65%);
  pointer-events:none;
}
.hero .contenedor{position:relative}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:3.5rem;align-items:center}
.hero p.entrada{font-size:1.15rem;max-width:52ch}
.hero-acciones{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:1.8rem}
.hero-nota{margin-top:1.4rem;font-size:.9rem;color:var(--txt-claro-2)}
@media (max-width:900px){.hero-grid{grid-template-columns:1fr;gap:2.5rem}}

/* Maqueta de pantalla del hero (dibujada en CSS, sin imagen pesada) */
.pantalla{
  background:var(--tinta-2);border:1px solid var(--linea-oscura);
  border-radius:16px;padding:1rem;box-shadow:0 26px 60px rgba(0,0,0,.45);
}
.pantalla .barra{display:flex;gap:.35rem;margin-bottom:.9rem}
.pantalla .barra i{width:9px;height:9px;border-radius:50%;background:#2c3a5c;display:block}
.pantalla-fila{
  display:flex;justify-content:space-between;align-items:center;gap:1rem;
  padding:.62rem .75rem;border-radius:8px;font-size:.86rem;
}
.pantalla-fila:nth-child(odd){background:rgba(255,255,255,.035)}
.pantalla-fila span:first-child{color:var(--txt-claro-2)}
.pantalla-fila .cifra{font-variant-numeric:tabular-nums;font-weight:600;color:var(--txt-claro)}
.pantalla-fila .cifra.pos{color:var(--verde)}
.pantalla-titulo{
  font-family:var(--font-head);font-weight:700;font-size:.95rem;
  color:var(--txt-claro);padding:0 .75rem .6rem;border-bottom:1px solid var(--linea-oscura);margin-bottom:.5rem;
}

/* --- 6. Franja de cifras ------------------------------------------------- */
.cifras{background:var(--tinta-2);border-top:1px solid var(--linea-oscura);padding:2.2rem 0}
.cifras-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem;text-align:center}
.cifra-dato{
  font-family:var(--font-head);font-weight:800;font-size:clamp(1.6rem,1.2rem + 1.2vw,2.2rem);
  color:var(--verde);line-height:1.1;
}
.cifra-etq{font-size:.86rem;color:var(--txt-claro-2);margin:.35rem 0 0}
@media (max-width:760px){.cifras-grid{grid-template-columns:repeat(2,1fr);gap:1.8rem}}

/* --- 7. Tarjetas y rejillas --------------------------------------------- */
.rejilla{display:grid;gap:1.5rem}
.rejilla-2{grid-template-columns:repeat(2,1fr)}
.rejilla-3{grid-template-columns:repeat(3,1fr)}
@media (max-width:900px){.rejilla-3{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.rejilla-2,.rejilla-3{grid-template-columns:1fr}}

.tarjeta{
  background:var(--panel);border:1px solid var(--linea);border-radius:var(--radio);
  padding:1.6rem;box-shadow:var(--sombra);
  transition:transform .14s ease,box-shadow .14s ease,border-color .14s ease;
}
a.tarjeta{display:block;text-decoration:none;color:inherit}
a.tarjeta:hover{transform:translateY(-3px);border-color:#c9d6cc;box-shadow:0 14px 34px rgba(16,24,20,.10)}
.tarjeta h3{margin-bottom:.35rem}
.tarjeta p{color:var(--txt-suave);font-size:.96rem;margin-bottom:0}
.tarjeta .icono{
  width:42px;height:42px;border-radius:11px;display:grid;place-items:center;
  background:rgba(20,184,166,.12);margin-bottom:1rem;
}
.tarjeta .icono svg{width:22px;height:22px;stroke:var(--teal-tinta);fill:none;stroke-width:1.7}

/* Tarjeta de problema → solución */
.dolor{border-left:3px solid var(--verde)}
.dolor .etq-dolor{
  font-family:var(--font-head);font-size:.72rem;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:#a13b2f;display:block;margin-bottom:.45rem;
}
.dolor .etq-sol{color:var(--verde-tinta)}
.dolor hr{border:0;border-top:1px solid var(--linea);margin:1.1rem 0}

/* --- 8. Bloques alternos de módulo (modulos.html) ----------------------- */
.modulo{
  display:grid;grid-template-columns:1fr 1fr;gap:3.2rem;align-items:center;
  padding:3rem 0;border-top:1px solid var(--linea);
}
.modulo:first-of-type{border-top:0}
.modulo.invertido .modulo-txt{order:2}
@media (max-width:860px){
  .modulo{grid-template-columns:1fr;gap:2rem}
  .modulo.invertido .modulo-txt{order:0}
}
.modulo h2{font-size:1.7rem}
.modulo ul{list-style:none;padding:0;margin:1.2rem 0 0}
.modulo ul li{position:relative;padding-left:1.6rem;color:var(--txt-suave);margin-bottom:.5rem}
.modulo ul li::before{
  content:"";position:absolute;left:0;top:.62em;width:8px;height:8px;border-radius:2px;
  background:var(--grad);
}
.ahorro{
  margin-top:1.4rem;padding:.85rem 1rem;border-radius:10px;
  background:rgba(34,197,94,.09);border:1px solid rgba(34,197,94,.28);
  font-size:.95rem;color:var(--txt);
}
.ahorro strong{color:var(--verde-tinta)}

/* Visual de apoyo: lista de líneas tipo listado del sistema */
.visual{
  background:var(--panel);border:1px solid var(--linea);border-radius:var(--radio);
  padding:1.1rem;box-shadow:var(--sombra);
}
.visual .v-cab{
  font-family:var(--font-head);font-weight:700;font-size:.9rem;
  padding:.2rem .5rem .75rem;border-bottom:1px solid var(--linea);margin-bottom:.4rem;
}
.v-fila{
  display:flex;justify-content:space-between;gap:1rem;align-items:center;
  padding:.55rem .5rem;font-size:.88rem;border-radius:7px;
}
.v-fila:nth-child(even){background:#f7faf7}
.v-fila .cifra{font-variant-numeric:tabular-nums;font-weight:600}
.pastilla{
  display:inline-block;font-size:.72rem;font-weight:700;font-family:var(--font-head);
  padding:.12rem .5rem;border-radius:999px;letter-spacing:.02em;
}
.p-verde{background:rgba(34,197,94,.15);color:#166534}
.p-teal{background:rgba(20,184,166,.15);color:var(--teal-tinta)}
.p-gris{background:#eceeed;color:#54615a}
.p-ambar{background:rgba(245,158,11,.16);color:#92400e}

/* --- 9. Tablas ----------------------------------------------------------- */
.tabla-envoltura{overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:var(--radio)}
table{
  width:100%;border-collapse:collapse;background:var(--panel);
  border:1px solid var(--linea);border-radius:var(--radio);min-width:640px;font-size:.95rem;
}
caption{text-align:left;padding:.6rem 0;color:var(--txt-suave);font-size:.9rem}
th,td{padding:.85rem 1rem;text-align:left;border-bottom:1px solid var(--linea)}
thead th{
  font-family:var(--font-head);font-size:.86rem;background:#f0f4f0;
  position:sticky;top:0;
}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover{background:#f7faf7}
td.si,td.no{text-align:center;font-weight:700}
td.si{color:var(--verde-tinta)}
td.no{color:#9aa5a0}

/* --- 10. Planes ---------------------------------------------------------- */
.planes{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;align-items:start}
@media (max-width:900px){.planes{grid-template-columns:1fr}}
.plan{
  background:var(--panel);border:1px solid var(--linea);border-radius:var(--radio);
  padding:1.8rem;box-shadow:var(--sombra);display:flex;flex-direction:column;height:100%;
}
.plan.destacado{border:2px solid var(--verde);box-shadow:0 16px 40px rgba(34,197,94,.16)}
.plan .etiqueta-plan{
  display:inline-block;align-self:flex-start;font-family:var(--font-head);font-size:.7rem;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;color:#06210f;background:var(--grad);
  padding:.2rem .6rem;border-radius:999px;margin-bottom:.9rem;
}
.plan .precio{font-family:var(--font-head);font-size:1.5rem;font-weight:800;margin:.2rem 0 .1rem}
.plan .precio small{display:block;font-size:.85rem;font-weight:500;color:var(--txt-suave);font-family:var(--font-body)}
.plan ul{list-style:none;padding:0;margin:1.2rem 0;flex:1}
.plan ul li{position:relative;padding-left:1.55rem;font-size:.94rem;color:var(--txt-suave)}
.plan ul li::before{
  content:"";position:absolute;left:0;top:.5em;width:12px;height:7px;
  border-left:2px solid var(--verde-tinta);border-bottom:2px solid var(--verde-tinta);
  transform:rotate(-45deg);
}

/* --- 11. Preguntas frecuentes ------------------------------------------- */
.faq{max-width:820px}
.faq details{
  background:var(--panel);border:1px solid var(--linea);border-radius:11px;
  padding:1rem 1.2rem;margin-bottom:.8rem;
}
.faq summary{
  font-family:var(--font-head);font-weight:700;cursor:pointer;list-style:none;
  display:flex;justify-content:space-between;align-items:center;gap:1rem;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.4rem;color:var(--verde-tinta);line-height:1}
.faq details[open] summary::after{content:"−"}
.faq details[open] summary{margin-bottom:.7rem}
.faq p:last-child{margin-bottom:0;color:var(--txt-suave)}

/* --- 12. Formularios ----------------------------------------------------- */
.formulario{display:grid;gap:1rem}
.campo-fila{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
@media (max-width:640px){.campo-fila{grid-template-columns:1fr}}
label{
  display:block;font-family:var(--font-head);font-size:.82rem;font-weight:700;
  margin-bottom:.3rem;color:var(--txt);
}
label .req{color:#a13b2f}
input,select,textarea{
  width:100%;font-family:var(--font-body);font-size:1rem;color:var(--txt);
  background:var(--panel);border:1px solid var(--linea);border-radius:9px;
  padding:.72rem .85rem;
}
textarea{min-height:120px;resize:vertical}
input::placeholder,textarea::placeholder{color:#9aa5a0}
input:hover,select:hover,textarea:hover{border-color:#c1cfc4}
/* Estado de error: se marca desde main.js, nunca sólo por color */
.campo.error input,.campo.error select,.campo.error textarea{border-color:#a13b2f;background:#fdf5f4}
.mensaje-error{display:none;color:#a13b2f;font-size:.85rem;margin-top:.3rem}
.campo.error .mensaje-error{display:block}
.aviso{
  padding:.9rem 1.1rem;border-radius:10px;font-size:.94rem;margin-bottom:1rem;
  border:1px solid rgba(34,197,94,.35);background:rgba(34,197,94,.10);color:#14532d;
}
.aviso[hidden]{display:none}
.nota-legal{font-size:.85rem;color:var(--txt-suave)}

/* Formulario dentro de bloque oscuro */
.oscuro label{color:var(--txt-claro)}
.oscuro input,.oscuro select,.oscuro textarea{
  background:var(--tinta-2);border-color:var(--linea-oscura);color:var(--txt-claro);
}
.oscuro input::placeholder,.oscuro textarea::placeholder{color:#6b7c92}
.oscuro .nota-legal{color:var(--txt-claro-2)}

/* --- 13. Llamado final --------------------------------------------------- */
.cta-final .contenedor{
  display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center;
}
@media (max-width:900px){.cta-final .contenedor{grid-template-columns:1fr;gap:2rem}}

/* --- 14. Contacto -------------------------------------------------------- */
.datos-contacto{list-style:none;padding:0;margin:0}
.datos-contacto li{display:flex;gap:.85rem;align-items:flex-start;margin-bottom:1.3rem}
.datos-contacto svg{width:20px;height:20px;stroke:var(--teal-tinta);fill:none;stroke-width:1.7;flex:0 0 auto;margin-top:.25rem}
.datos-contacto strong{display:block;font-family:var(--font-head);font-size:.95rem}
.datos-contacto a{color:var(--txt);text-decoration:none}
.datos-contacto a:hover{color:var(--verde-tinta);text-decoration:underline}
.datos-contacto span{color:var(--txt-suave);font-size:.95rem}

/* --- 15. Pie ------------------------------------------------------------- */
.pie{background:var(--tinta);color:var(--txt-claro-2);padding:3.2rem 0 1.8rem;font-size:.93rem}
.pie-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2.5rem;margin-bottom:2.4rem}
@media (max-width:760px){.pie-grid{grid-template-columns:1fr;gap:2rem}}
.pie h4{font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;color:var(--txt-claro);margin-bottom:.9rem}
.pie ul{list-style:none;padding:0;margin:0}
.pie li{margin-bottom:.5rem}
.pie a{color:var(--txt-claro-2);text-decoration:none}
.pie a:hover{color:var(--verde);text-decoration:underline}
.pie img{height:24px;margin-bottom:.9rem}
.pie-abajo{
  border-top:1px solid var(--linea-oscura);padding-top:1.4rem;
  display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;font-size:.86rem;
}