/* Esencial Heat - hoja de estilo unica.
   Paleta y logotipo tomados del manual de marca oficial del cliente.
   Estructura y ritmo visual segun la referencia que eligio el propio cliente. */
:root{
  --brasa:#ED3237;
  --llama:#F58634;
  --chispa:#FFCC29;

  --carbon:#141110;
  --humo:#F4F2F0;
  --blanco:#FFFFFF;
  --tinta:#191614;
  --gris:#6B6360;
  --linea:rgba(25,22,20,.12);
  --linea-osc:rgba(255,255,255,.12);

  --calor:linear-gradient(135deg,var(--brasa),var(--llama) 55%,var(--chispa));
  --ancho:1180px;
  --radio:14px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"Segoe UI",Roboto,-apple-system,Helvetica,Arial,sans-serif;
  color:var(--tinta);background:var(--blanco);line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.env{width:min(92vw,var(--ancho));margin:0 auto}
.centrado{text-align:center}

/* ---------- tipografia ---------- */
h1,h2,h3,h4{line-height:1.14;letter-spacing:-.02em;font-weight:800}
h1{font-size:clamp(2.1rem,4.6vw,3.55rem)}
h2{font-size:clamp(1.7rem,3.2vw,2.5rem)}
h3{font-size:1.12rem;font-weight:700;letter-spacing:-.01em}
.ojo{
  font-size:.78rem;font-weight:800;letter-spacing:.22em;text-transform:uppercase;
  color:var(--brasa);margin-bottom:.9rem;display:block;
}
.seccion-osc .ojo{color:var(--brasa)}
.entrada{font-size:1.05rem;color:var(--gris);max-width:62ch;margin-top:1rem}
.seccion-osc .entrada{color:var(--gris)}

/* ---------- barras superiores ---------- */
.franja{background:var(--carbon);color:rgba(255,255,255,.72);font-size:.83rem}
.franja .env{display:flex;justify-content:space-between;gap:1rem;padding:.55rem 0;flex-wrap:wrap}
.franja b{color:var(--chispa);font-weight:600}
.franja a:hover{color:#fff}

.cabecera{background:var(--carbon);border-bottom:1px solid var(--linea-osc);position:sticky;top:0;z-index:50}
.cabecera .env{display:flex;align-items:center;gap:2rem;padding:.85rem 0}
.marca img{height:38px;width:auto}
nav{margin-left:auto;display:flex;align-items:center;gap:1.6rem}
nav a{color:rgba(255,255,255,.82);font-size:.93rem;font-weight:600}
nav a:hover{color:var(--chispa)}
nav a.activo{color:#fff;box-shadow:inset 0 -2px 0 var(--llama)}
nav a.boton.fuego,nav a.boton.fuego:hover{color:#fff;box-shadow:0 10px 26px rgba(237,50,55,.32)}

.boton{
  display:inline-flex;align-items:center;gap:.5rem;justify-content:center;
  padding:.78rem 1.5rem;border-radius:999px;font-weight:700;font-size:.95rem;
  border:2px solid transparent;transition:transform .15s,box-shadow .15s,background .15s;
  cursor:pointer;
}
.boton.fuego{background:var(--calor);color:#fff;box-shadow:0 10px 26px rgba(237,50,55,.32)}
.boton.fuego:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(237,50,55,.42)}
.boton.linea{border-color:var(--tinta);color:var(--tinta)}
.boton.linea:hover{border-color:var(--brasa);color:var(--brasa)}
.boton.oscura{background:var(--carbon);color:#fff}
.boton.oscura:hover{transform:translateY(-2px)}
.menu-boton{display:none;background:none;border:0;color:#fff;font-size:1.5rem;line-height:1;cursor:pointer}

/* ---------- hero ---------- */
.hero{position:relative;background:var(--humo);color:var(--tinta);overflow:hidden}
.hero:before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(58% 78% at 72% 32%,rgba(245,134,52,.24),transparent 62%),
    radial-gradient(44% 58% at 90% 78%,rgba(237,50,55,.22),transparent 66%),
    radial-gradient(40% 55% at 10% 90%,rgba(255,204,41,.09),transparent 70%);
  animation:respira 9s ease-in-out infinite alternate;
}
@keyframes respira{from{opacity:.75}to{opacity:1}}
.hero .env{position:relative;z-index:2;padding:4.4rem 0 4rem}
.hero-cuadro{display:grid;grid-template-columns:1.05fr .95fr;gap:3.6rem;align-items:center}
.hero-txt{max-width:min(38rem,100%)}
.pastilla{
  display:inline-flex;align-items:center;gap:.55rem;
  background:rgba(255,204,41,.14);border:1px solid rgba(255,204,41,.4);
  color:var(--chispa);border-radius:999px;padding:.42rem 1rem;
  font-size:.82rem;font-weight:700;letter-spacing:.04em;margin-bottom:1.5rem;
}
.pastilla i{width:.5rem;height:.5rem;border-radius:50%;background:var(--chispa);display:block;
  animation:brasa 2.4s ease-in-out infinite}
@keyframes brasa{0%,100%{opacity:1;box-shadow:0 0 0 0 rgba(255,204,41,.6)}
  50%{opacity:.65;box-shadow:0 0 0 .45rem rgba(255,204,41,0)}}
.hero h1{font-size:clamp(2rem,3.7vw,3.15rem)}
.hero h1 span{
  background:linear-gradient(100deg,var(--brasa),var(--llama) 40%,var(--chispa) 60%,var(--llama) 85%);
  background-size:250% 100%;
  -webkit-background-clip:text;background-clip:text;color:transparent;
  animation:calienta 7s ease-in-out infinite alternate;
}
@keyframes calienta{from{background-position:0% 50%}to{background-position:100% 50%}}
.hero p.entrada{color:var(--gris);margin-top:1.2rem;font-size:1.03rem;max-width:34rem}
.acciones{display:flex;gap:.9rem;flex-wrap:wrap;margin-top:1.9rem}
.cifras{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1.2rem;
  margin-top:2.6rem;padding-top:1.7rem;border-top:1px solid var(--linea);
}
.cifras b{display:block;font-size:1.2rem;font-weight:800;letter-spacing:-.02em;line-height:1.2;
  background:var(--calor);-webkit-background-clip:text;background-clip:text;color:transparent}
.cifras span{font-size:.78rem;color:var(--gris);line-height:1.4;display:block;margin-top:.3rem}

/* fotos reales del cliente, no el logotipo ampliado */
.hero-fotos{position:relative;min-height:26rem;display:flex;align-items:center;justify-content:center}
.resplandor{
  position:absolute;width:78%;aspect-ratio:1;border-radius:50%;
  background:radial-gradient(circle,rgba(245,134,52,.42),rgba(237,50,55,.16) 45%,transparent 68%);
  filter:blur(6px);animation:latir 6s ease-in-out infinite alternate;
}
@keyframes latir{from{transform:scale(.92);opacity:.75}to{transform:scale(1.06);opacity:1}}
.hero-fotos figure{position:relative;border-radius:16px;overflow:hidden;
  box-shadow:0 22px 50px rgba(0,0,0,.22);border:1px solid var(--linea)}
.hero-fotos .foto-grande{width:76%;margin-left:auto;animation:flota 7s ease-in-out infinite alternate}
/* la segunda foto se monta sobre la primera: hay que ganarle la especificidad
   a '.hero-fotos figure', que la deja como position:relative */
.hero-fotos .foto-chica{position:absolute;left:0;bottom:-1rem;width:44%;z-index:2;
  animation:flota 7s ease-in-out .8s infinite alternate-reverse}
@keyframes flota{from{transform:translateY(-8px)}to{transform:translateY(8px)}}
.hero-fotos img{width:100%;height:100%;object-fit:cover;display:block}

/* entradas escalonadas del hero */
.surge{opacity:0;transform:translateY(16px);animation:entra .7s cubic-bezier(.2,.7,.3,1) forwards}
.s1{animation-delay:.05s}.s2{animation-delay:.16s}.s3{animation-delay:.27s}
.s4{animation-delay:.38s}.s5{animation-delay:.49s}
@keyframes entra{to{opacity:1;transform:none}}

/* aparicion al bajar */
.revela{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s cubic-bezier(.2,.7,.3,1)}
.revela.visible{opacity:1;transform:none}

@media(prefers-reduced-motion:reduce){
  .surge,.revela{animation:none!important;transition:none!important;opacity:1!important;transform:none!important}
  .hero:before,.pastilla i,.hero h1 span,.resplandor,.foto-grande,.foto-chica{animation:none!important}
}

/* cabecera de paginas interiores */
.titular{background:var(--humo);color:var(--tinta);padding:3.8rem 0 3.4rem;position:relative;overflow:hidden}
.titular:before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(55% 90% at 85% 40%,rgba(245,134,52,.24),transparent 62%);
}
.titular .env{position:relative;z-index:2}
.titular .entrada{color:var(--gris)}

/* ---------- secciones ---------- */
section{padding:4.6rem 0}
.seccion-clara{background:var(--humo)}
.seccion-osc{background:#FFF4EC;color:var(--tinta)}
.cabeza{max-width:44rem;margin-bottom:2.6rem}

.ventajas{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:1.4rem}
.ventaja{background:#fff;border:1px solid var(--linea);border-radius:var(--radio);padding:1.7rem}
.ventaja .icono{
  width:2.9rem;height:2.9rem;border-radius:12px;display:grid;place-items:center;
  background:rgba(245,134,52,.14);margin-bottom:1.1rem;
}
.ventaja .icono svg{width:1.35rem;height:1.35rem;stroke:var(--brasa);fill:none;stroke-width:2;
  stroke-linecap:round;stroke-linejoin:round}
.ventaja p{font-size:.93rem;color:var(--gris);margin-top:.5rem}

.lineas{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem}
.linea-card{background:#fff;border:1px solid var(--linea);border-radius:var(--radio);overflow:hidden;
  display:flex;flex-direction:column}
.linea-card .top{height:135px;display:grid;place-items:center}
.linea-card:nth-child(1) .top{background:linear-gradient(135deg,var(--brasa),#C2181D)}
.linea-card:nth-child(2) .top{background:linear-gradient(135deg,var(--llama),var(--brasa))}
.linea-card:nth-child(3) .top{background:linear-gradient(135deg,var(--chispa),var(--llama))}
.linea-card .top svg{width:2.6rem;height:2.6rem;stroke:#fff;fill:none;stroke-width:1.8;
  stroke-linecap:round;stroke-linejoin:round}
.linea-card .cuerpo{padding:1.5rem 1.6rem 1.7rem}
.linea-card p{font-size:.93rem;color:var(--gris);margin-top:.55rem}
.mas{display:inline-block;margin-top:1.1rem;font-weight:700;font-size:.9rem;color:var(--brasa)}
.mas:hover{color:var(--llama)}

/* productos */
.productos{display:grid;grid-template-columns:repeat(auto-fit,minmax(235px,1fr));gap:1.3rem}
.productos.detalle{grid-template-columns:repeat(auto-fit,minmax(310px,1fr));gap:1.6rem}
.producto{background:#fff;border:1px solid var(--linea);border-radius:var(--radio);overflow:hidden;
  display:flex;flex-direction:column;transition:transform .16s,box-shadow .16s}
.producto:hover{transform:translateY(-4px);box-shadow:0 16px 36px rgba(20,17,16,.10)}
.producto .foto{aspect-ratio:1/1;background:#fff;display:grid;place-items:center;padding:1.1rem;
  border-bottom:1px solid var(--linea)}
.producto .foto img{max-height:100%;width:auto;object-fit:contain}
.producto .cuerpo{padding:1.15rem 1.25rem 1.4rem;display:flex;flex-direction:column;flex:1}
.producto .cat{font-size:.7rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;
  color:var(--llama);margin-bottom:.45rem}
.producto h3{font-size:1rem}
.producto p{font-size:.86rem;color:var(--gris);margin-top:.45rem}
.producto p.para{font-size:.82rem;color:var(--tinta);margin-top:.8rem;
  border-top:1px solid var(--linea);padding-top:.8rem}
.producto p.para b{color:var(--brasa)}
.producto .mas{margin-top:auto;padding-top:.9rem;font-size:.85rem}

/* aplicaciones */
.chips{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:.9rem;margin-top:2.2rem}
.chip{
  display:flex;align-items:center;gap:.85rem;padding:.95rem 1.1rem;border-radius:12px;
  background:#fff;border:1px solid var(--linea);font-weight:600;font-size:.95rem;
}
.chip .p{width:2.1rem;height:2.1rem;border-radius:8px;background:rgba(245,134,52,.18);
  display:grid;place-items:center;flex:none}
.chip svg{width:1.05rem;height:1.05rem;stroke:var(--llama);fill:none;stroke-width:2;
  stroke-linecap:round;stroke-linejoin:round}

.aplics{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1.3rem}
.aplic{border:1px solid var(--linea);border-left:4px solid var(--llama);border-radius:12px;
  padding:1.5rem 1.6rem;background:#fff}
.aplic p{font-size:.93rem;color:var(--gris);margin-top:.5rem}

/* sobre + cta */
.dos{display:grid;grid-template-columns:1.15fr .85fr;gap:3.4rem;align-items:start}
.datos{display:flex;gap:2.6rem;flex-wrap:wrap;margin-top:2rem}
.datos b{display:block;font-size:1.15rem;font-weight:800}
.datos span{font-size:.85rem;color:var(--gris)}
.cta-caja{
  background:var(--calor);
  border-radius:var(--radio);padding:2.3rem;color:#fff;position:relative;overflow:hidden;
}
.cta-caja:after{content:"";position:absolute;right:-30%;bottom:-45%;width:75%;aspect-ratio:1;
  background:radial-gradient(circle,rgba(255,204,41,.30),transparent 62%)}
.cta-caja h3{font-size:1.35rem;position:relative;z-index:1}
.cta-caja p{color:rgba(255,255,255,.9);font-size:.95rem;margin:.7rem 0 1.5rem;position:relative;z-index:1}
.cta-caja .boton{position:relative;z-index:1;background:#fff;color:var(--brasa);box-shadow:0 10px 26px rgba(0,0,0,.18)}

/* formulario */
.form-fila{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
form label{display:block;font-size:.82rem;font-weight:700;margin-bottom:.35rem;color:var(--gris)}
form input,form textarea,form select{
  width:100%;padding:.8rem .95rem;border:1px solid var(--linea);border-radius:10px;
  font:inherit;font-size:.95rem;background:#fff;color:var(--tinta);
}
form input:focus,form textarea:focus,form select:focus{outline:2px solid var(--llama);border-color:transparent}
form .campo{margin-bottom:1rem}
.aviso{font-size:.8rem;color:var(--gris);margin-top:.9rem}

/* pie */
footer{background:var(--carbon);color:rgba(255,255,255,.66);padding:3.4rem 0 2rem;font-size:.92rem}
.pie{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2.6rem}
footer h4{font-size:.78rem;letter-spacing:.2em;text-transform:uppercase;color:var(--chispa);
  margin-bottom:1rem;font-weight:800}
footer img{height:34px;width:auto;margin-bottom:1rem}
footer a:hover{color:#fff}
footer ul{list-style:none;display:flex;flex-direction:column;gap:.5rem}
.legal{border-top:1px solid var(--linea-osc);margin-top:2.6rem;padding-top:1.4rem;
  display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;font-size:.83rem;
  color:rgba(255,255,255,.45)}

/* whatsapp flotante */
.wa{position:fixed;right:1.3rem;bottom:1.3rem;width:3.4rem;height:3.4rem;border-radius:50%;
  background:#25D366;display:grid;place-items:center;box-shadow:0 10px 26px rgba(0,0,0,.3);z-index:60}
.wa svg{width:1.7rem;height:1.7rem;fill:#fff}

@media(max-width:900px){
  .dos{grid-template-columns:1fr;gap:2.2rem}
  .cifras{grid-template-columns:repeat(2,1fr)}
  nav{display:none}
  nav.abierto{display:flex;position:absolute;top:100%;left:0;right:0;background:var(--carbon);
    flex-direction:column;align-items:flex-start;gap:0;padding:1rem 4vw 1.4rem;
    border-bottom:1px solid var(--linea-osc)}
  nav.abierto a{padding:.7rem 0;width:100%}
  .menu-boton{display:block;margin-left:auto}
  .cabecera .env{position:relative}
  .hero-cuadro{grid-template-columns:1fr;gap:2rem}
  /* en vertical las fotos van arriba; el bloque tiene que RESERVAR el hueco de
     la foto pequena, si no cuelga por debajo y se come el titulo (aviso de
     Luds, 30/08) */
  .hero-fotos{min-height:0;order:-1;padding-bottom:2rem;margin-bottom:.4rem;width:100%}
  .hero-fotos .foto-chica{bottom:0}
  .hero-txt{max-width:100%}
}
@media(max-width:620px){
  .form-fila{grid-template-columns:1fr}
  .pie{grid-template-columns:1fr}
  section{padding:3.4rem 0}
  .franja .env{justify-content:center;text-align:center}
}


/* ---------- 11. menos negro (peticion de Daniel, 30/08/2026) ----------
   Se conserva el carbon donde el cliente lo queria -cabecera, bloques
   destacados, llamadas a la accion y pie- y se aclara el resto. El naranja
   sigue siendo el identificativo. */
.seccion-calida{background:linear-gradient(180deg,#FFF8F1,#FDF0E4)}
.seccion-calida .chip{background:#fff;border-color:var(--linea)}
.seccion-calida .chip svg{stroke:var(--llama)}
.seccion-calida .chip .p{background:rgba(245,134,52,.14)}

/* chips-4x2: 8 aplicaciones en dos filas de 4 en escritorio (feedback Daniel 08/10/2026) */
@media (min-width:900px){.chips{grid-template-columns:repeat(4,1fr)}}