/* ==================================================
   VARIABLES (COLORES RIBATECH)
================================================== */

:root {
  --ribatech-azul: #1b3661;
  --ribatech-azul-claro: #2e4368;
  --ribatech-acento: #3f8fa3;
  --ribatech-turquesa: #1aa0bf;
  --ribatech-gris: #f2f2f2;
  --ribatech-texto: #222;
  --ribatech-bg: #f7f8fa;
}

body{
  background: var(--ribatech-bg);
  color: var(--ribatech-texto);
  font-family: 'Segoe UI', sans-serif;
  margin:0;
}


/* ==================================================
   HERO
================================================== */
.hero-imagen{
  display: flex;
  justify-content: center;
}
.hero-imagen img, .hero-imagen video{
  height:520px;
  object-fit:cover;
  display:block;
}

.titulo-producto{
  text-align:center;
  padding:50px 20px;
  background:white;
}

.titulo-producto h1{
  font-size:34px;
  color:var(--ribatech-azul);
  font-weight:600;
}


/* ==================================================
   SECCIÓN INTRO ANTES DE DOBLE IMAGEN
================================================== */
.materiales-layout{
  padding:120px 20px;
  background:white;
}

/* ===== HEADER ===== */

.materiales-header{
  text-align:center;
  max-width:900px;
  margin:0 auto 80px auto;
}

.materiales-header h2{
  color:var(--ribatech-azul);
  margin-bottom:25px;
}

.materiales-header p{
  font-size:17px;
  line-height:1.7;
  color:var(--ribatech-azul-claro);
}

/* ===== GRID PRINCIPAL ===== */

.materiales-content{
  max-width:1200px;
  margin:auto;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:80px;
  align-items:center;
}

/* Columna izquierda */

.materiales-left p{
  margin-top:30px;
  font-size:16px;
  line-height:1.7;
  color:#555;
}

/* Imágenes */

.materiales-imagen-pequena img,
.materiales-imagen-grande img{
  width:100%;
  border-radius:10px;
  box-shadow:0 20px 40px rgba(0,0,0,.08);
  transition:.4s;
}

.materiales-imagen-grande img:hover,
.materiales-imagen-pequena img:hover{
  transform:scale(1.03);
}

/* Responsive */

@media(max-width:900px){

  .materiales-content{
    grid-template-columns:1fr;
    gap:40px;
  }

  .materiales-header h2{
    font-size:30px;
  }

}
/* ==================================================
   DOBLE IMAGEN
================================================== */

.doble-imagen{
  max-width:1200px;
  margin:100px auto;
  padding:0 20px;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:40px;
}

.doble-img-item{
  position:relative;
  overflow:hidden;
  border-radius:10px;
  cursor:pointer;
  box-shadow:0 10px 30px rgba(0,0,0,.08);
  transition:.3s;
}

.doble-img-item img, .doble-img-item iframe{
  width:100%;
  height:420px;
  object-fit:cover;
  transition:.4s;
}

.doble-img-item:hover img{
  transform:scale(1.05);
}

.doble-img-item p{
  position:absolute;
  bottom:0;
  left:0;
  width:100%;
  padding:20px;
  background:linear-gradient(to top, rgba(0,0,0,.6), transparent);
  color:white;
  font-size:15px;
  text-align:left;
}



.doble-img-item-grande{
  position:relative;
  overflow:hidden;
  border-radius:10px;
  cursor:pointer;
  box-shadow:0 10px 30px rgba(0,0,0,.08);
  transition:.3s;
}

.doble-img-item-grande img, .doble-img-item-grande iframe{
  width:100%;
  object-fit:cover;
  transition:.4s;
}

.doble-img-item-grande:hover img{
  transform:scale(1.05);
}

.doble-img-item-grande p{
  position:absolute;
  bottom:0;
  left:0;
  width:100%;
  padding:20px;
  background:linear-gradient(to top, rgba(0,0,0,.6), transparent);
  color:white;
  font-size:15px;
  text-align:left;
}



/* Responsive */

@media(max-width:900px){
  .doble-imagen{
    grid-template-columns:1fr;
  }

  .doble-img-item img{
    height:300px;
  }
}

/* ==================================================
   COMBINA
================================================== */
.combina{
  padding:20px 20px;
  background:var(--ribatech-bg);
  text-align:center;
}

.combina h2{
  font-size:46px;
  color:var(--ribatech-azul);
  margin-bottom:30px;
  font-weight:600;
}

.combina .intro{
  max-width:900px;
  margin:0 auto 70px auto;
  font-size:17px;
  line-height:1.7;
  color:var(--ribatech-azul-claro);
}

/* GRID */

.combina-grid{
  max-width:1200px;
  margin:auto;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:70px;
  align-items:center;
}

/* IMAGEN */

.combina-img{
  position:relative;
  padding:40px;
  background:var(--ribatech-gris);
  border-radius:10px;
}

.combina-img img{
  width:100%;
  display:block;
  border-radius:6px;
  box-shadow:0 20px 40px rgba(0,0,0,.15);
}

/* LISTA */

.combina-lista{
  text-align:left;
}

.combina-lista p{
  font-size:19px;
  margin-bottom:20px;
  color:var(--ribatech-azul-claro);
  position:relative;
  padding-left:25px;
}

/* barra decorativa */

.combina-lista p::before{
  content:"";
  width:12px;
  height:2px;
  background:var(--ribatech-turquesa);
  position:absolute;
  left:0;
  top:50%;
}

@media(max-width:900px){

  .combina-grid{
    grid-template-columns:1fr;
    gap:40px;
  }

  .combina h2{
    font-size:34px;
  }

}
/* ==================================================
   BLOQUE 3 COLUMNAS
================================================== */

.bloque-tecnico{
  max-width:1300px;
  margin:80px auto;
  display:grid;
  grid-template-columns:1fr 1fr 1fr;
  gap:60px;
  padding:0 20px;
}

.bloque-tecnico h3{
  font-size:14px;
  letter-spacing:1px;
  color:var(--ribatech-azul);
  margin-bottom:25px;
  position:relative;
  text-transform:uppercase;
}

.bloque-tecnico h3::after{
  content:"";
  width:45px;
  height:3px;
  background:var(--ribatech-acento);
  position:absolute;
  left:0;
  bottom:-10px;
}

.col-serie img{
  width:100%;
  margin:25px 0;
}

.col-serie img:hover{
  cursor: pointer;
}
.col-serie p{
  border: 1px solid rgb(184, 184, 184);
  border-top:  4px solid var(--ribatech-azul);
  text-align: justify;
  padding: 10px;
}
.col-caracteristicas li{
  padding:12px 0;
  border-bottom:1px solid #e2e2e2;
  font-size:14px;
    text-align: justify;

}
.col-caracteristicas p{
  font-size:14px;
  margin:0;
  padding:14px 16px 14px 32px;
  border-radius:6px;
  background:white;
  border:1px solid #e6e6e6;
  margin-bottom:10px;
  position:relative;
  transition:all .25s ease;
  text-align: justify;
}

.col-caracteristicas p::before{
  content:"";
  width:8px;
  height:8px;
  background:var(--ribatech-turquesa);
  border-radius:50%;
  position:absolute;
  left:12px;
  top:50%;
  transform:translateY(-50%);
}

.col-caracteristicas p:hover{
  border-color:var(--ribatech-turquesa);
  box-shadow:0 6px 15px rgba(0,0,0,.05);
  transform:translateX(3px);
}
.ensayo-box{
  background:white;
  padding:30px;
  border-radius:8px;
  box-shadow:0 10px 25px rgba(0,0,0,.05);
  display: flex;
  align-items: center;
  justify-content: center;
}

.ensayo-item{
  display:flex;
  justify-content:space-between;
  padding:10px 0;
  font-size:14px;
}

.ensayo-uw{
  margin-top:15px;
  padding-top:15px;
  border-top:2px solid var(--ribatech-acento);
  display:flex;
  justify-content:space-between;
  font-weight:600;
}

/* ==================================================
   DESCARGAS ESTILO PREMIUM
================================================== */

.descargas{
  margin-top:25px;
  display:flex;
  flex-direction:column;
  gap:12px;
}

/* Enlaces normales */

.link-tecnico{
  display:block;
  padding:14px 18px;
  background:white;
  border:1px solid #e3e3e3;
  border-radius:6px;
  text-decoration:none;
  font-size:14px;
  color:var(--ribatech-azul);
  transition:.3s;
  font-weight:500;
}

.link-tecnico:hover{
  border-color:var(--ribatech-turquesa);
  background:var(--ribatech-gris);
}

/* Botón principal (zona descargas) */

.link-tecnico.principal{
  background:var(--ribatech-turquesa);
  color:white;
  border:none;
  font-weight:600;
  text-align:center;
}

.link-tecnico.principal:hover{
  background:var(--ribatech-azul);
}
.btn-interes{
  margin-top:25px;
  width:100%;
  padding:15px;
  background:var(--ribatech-turquesa);
  color:white;
  border:none;
  font-weight:600;
  cursor:pointer;
  transition:.3s;
  display:inline-block;
  text-align:center; /* para enlaces */
  text-decoration:none; /* quita subrayado en <a> */
}

.btn-interes:hover{
  background:var(--ribatech-azul);
}

/* ==================================================
   SECCIONES TÉCNICAS SLIDER
================================================== */

.secciones-tecnicas{
  padding:100px 20px;
  text-align:center;
  background:white;
}

.secciones-tecnicas h2{
  color:var(--ribatech-azul);
  margin-bottom:50px;
}

.secciones-tecnicas > p{
  max-width:850px;
  margin:0 auto 40px auto;
  font-size:16px;
  line-height:1.7;
  color:var(--ribatech-azul-claro);
}

/* Imágenes superiores */

.secciones-tecnicas > img{
  width:100%;
  max-width:350px;
  height:230px;
  object-fit:cover;
  border-radius:8px;
  margin:10px;
  box-shadow:0 8px 20px rgba(0,0,0,.08);
  transition:.3s;
}

.secciones-tecnicas > img:hover{
  transform:translateY(-5px);
  box-shadow:0 15px 30px rgba(0,0,0,.12);
}

.slider-secciones{
  position:relative;
  max-width:1200px;
  margin:auto;
  overflow:hidden;
  padding:0 40px;
}

.slider-track{
  display:flex;
  transition:transform .4s ease;
}

.seccion-item{
  min-width:33.33%;
  padding:20px;
  box-sizing:border-box;
}

.seccion-item img{
  width:100%;
  height:260px;
  object-fit:cover;
  border-radius:8px;
  box-shadow:0 10px 25px rgba(0,0,0,.05);
  cursor: pointer;
}
.seccion-item .interior{
  width:100%;
  height:260px;
  object-fit:fill;
  border-radius:8px;
  box-shadow:0 10px 25px rgba(0,0,0,.05);
  cursor: pointer;
}

.seccion-item2{
  display:flex;
  flex-direction:column;
  justify-content:center; /* centra verticalmente */
  align-items:center; /* centra horizontalmente */
  text-align:center;
}
.seccion-item2 .texto{
  margin: auto;
}
.seccion-item p, .seccion-item2 p{
  margin-top:12px;
  font-weight:500;
}

.slider-dots{
  margin-top:20px;
  text-align:center;
}

.slider-dots span{
  display:inline-block;
  width:12px;
  height:12px;
  margin:5px;
  background:#ccc;
  border-radius:50%;
  cursor:pointer;
  transition:.3s;
}

.slider-dots span.active{
  background:#1aa0bf; /* color Ribatech */
  transform:scale(1.2);
}

.slider-track,
.slider-track-manillas{
  touch-action: pan-y;
}

.fin-seccion{
  max-width:200px;
  height:3px;
  background:var(--ribatech-turquesa);
  margin:100px auto 0 auto;
  border-radius:2px;
}
/* ==================================================
   MANILLAS SLIDER
================================================== */

.manillas{
  padding:100px 20px;
  text-align:center;
}

.slider-manillas{
  position:relative;
  max-width:1300px;
  margin:60px auto 0;
  overflow:hidden;
  padding:0 40px;
}

.slider-track-manillas{
  display:flex;
  transition:transform .4s ease;
}

.slider-track-manillas .manilla-item{
  min-width:25%;
  padding:15px;
  box-sizing:border-box;
}

.manilla-item{
  background:white;
  padding:25px;
  border-radius:8px;
  transition:.3s;
  box-shadow:0 5px 20px rgba(0,0,0,.04);
}

.manilla-item:hover{
  transform:translateY(-6px);
  box-shadow:0 15px 35px rgba(0,0,0,.08);
}

.manilla-item img{
  width:100%;
  height:120px;
  object-fit:contain;
  margin-bottom:15px;
}

.manilla-item img:hover{
  cursor: pointer;
}

.manilla-item p{
  font-size:14px;
  font-weight:500;
}

.manilla-item span{
  font-size:12px;
  color:#777;
}

/* ==================================================
   SISTEMA MALLORQUINA PLEGABLE
================================================== */

.sistema-plegable{
  padding:10px 20px;
  background:white;
}

.plegable-container{
  max-width:1200px;
  margin:auto;
  display:grid;
  grid-template-columns:1fr 2fr;
  gap:70px;
  align-items:center;
  margin-bottom: 20px;
}

/* Imagen */
.plegable-img h2{
  color:var(--ribatech-azul);
  margin-bottom:40px;
  font-size:20px;
  text-align:justify;
  position:relative;   /* IMPORTANTE */
}

.plegable-img h2::after{
  content:"";
  width:50px;
  height:2px;
  background:var(--ribatech-acento);
  position:absolute;
  left:0;
  bottom:-6px;
}
.plegable-img img{
  width:100%;
  border-radius:10px;
  box-shadow:0 20px 40px rgba(0,0,0,.1);
}

/* Texto */
.plegable-info{
    border: rgb(155, 155, 155) 1px solid;
    padding: 20px;
}


/* Guias */

.plegable-guias{
  text-align:center;
  margin-bottom:30px;
}

.plegable-guias img{
  width:100%;
  margin:auto;
  display:block;
}

.plegable-caption{
  margin-top:10px;
  font-size:13px;
  color:var(--ribatech-azul-claro);
}

/* Lista */

.plegable-lista{
  margin:25px 0;
  padding-left:18px;
}

.plegable-lista li{
  margin-bottom:10px;
  color:#444;
  line-height:1.5;
}

/* Botón */

.btn-plegable{
  display:inline-block;
  margin-top:15px;
  padding:12px 22px;
  border:2px solid var(--ribatech-turquesa);
  color:var(--ribatech-turquesa);
  text-decoration:none;
  font-weight:600;
  border-radius:4px;
  transition:.3s;
}

.btn-plegable:hover{
  background:var(--ribatech-turquesa);
  color:white;
}

/* Responsive */

@media(max-width:900px){

  .plegable-container{
    grid-template-columns:1fr;
  }

  .plegable-guias{
    justify-content:center;
    flex-wrap:wrap;
  }

}
/* ==================================================
   ACABADOS
================================================== */

.acabados-final{
  padding:100px 20px;
  background:white;
  text-align:center;
}

.grid-acabados{
  margin-top:60px;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:50px;
}
.intro-acabados{
  margin:20px auto 10px;
  font-size:16px;
  line-height:1.6;
  color:#666;
}

/* franja oscura destacada */

.franja-acabados{
  padding:70px 20px;
  background:linear-gradient(135deg,#0f1e35,#1b3661);
  text-align:center;
}

.franja-acabados p{
  margin:auto;
  color:white;
  font-size:20px;
  line-height:1.7;
}

/* bloque gris final */

.texto-acabados{
  padding:70px 20px;
  background:var(--ribatech-gris);
  text-align:center;
}

.texto-acabados p{
  margin:auto;
  font-size:16px;
  line-height:1.7;
  color:#666;
}
.acabado-card{
  overflow:hidden;
  border-radius:8px;
  box-shadow:0 10px 30px rgba(0,0,0,.06);
  transition:.3s;
}

.acabado-card:hover{
  transform:translateY(-8px);
}

.acabado-card img{
  width:100%;
  height:320px;
  object-fit:cover;
}

.acabado-card .info {
  background:var(--ribatech-azul);
  color:white;
  padding:30px;
  text-align:left;
}
 .acabado-card .info h3 {
  color:white;
  text-align:left;
}
.acabado-card .info a{
  display:inline-block;
  margin-top:15px;
  padding:10px 18px;
  border:1px solid white;
  color:white;
  text-decoration:none;
  font-size:12px;
  transition:.3s;
}

.acabado-card .info a:hover{
  background:white;
  color:var(--ribatech-azul);
}


/* ==================================================
   BOTONES SLIDER
================================================== */

.btn-slider{
  position:absolute;
  top:45%;
  transform:translateY(-50%);
  background:var(--ribatech-turquesa);
  border:none;
  color:white;
  font-size:28px;
  width:45px;
  height:45px;
  border-radius:50%;
  cursor:pointer;
  transition:.3s;
  z-index:5;
}

.btn-slider:hover{
  background:var(--ribatech-azul);
}

.prev{ left:0; }
.next{ right:0; }
.prev-m{ left:0; }
.next-m{ right:0; }


/* ==================================================
   RESPONSIVE
================================================== */

@media(max-width:1100px){
  .bloque-tecnico{
    grid-template-columns:1fr;
  }

  .grid-acabados{
    grid-template-columns:1fr;
  }

  .slider-track-manillas .manilla-item{
    min-width:33.33%;
  }
}

@media(max-width:800px){
  .seccion-item{
    min-width:50%;
  }

  .slider-track-manillas .manilla-item{
    min-width:50%;
  }
}

@media(max-width:500px){
  .seccion-item{
    min-width:100%;
  }

  .slider-track-manillas .manilla-item{
    min-width:100%;
  }
  .hero-imagen img, .hero-imagen video{
  height: auto;
  width: 100%;
}

}

/* ==================================================
   LIGHTBOX
================================================== */

.lightbox {
  display: none;
  position: fixed;
  z-index: 9999;
  padding-top: 60px;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0,0,0,0.8);
}

.lightbox-inner {
  position: relative;
  margin: auto;
  max-width: 90%;
  text-align: center;
}

.lightbox-content {
  max-width: 100%;
  max-height: 80vh;
  border-radius: 8px;
  box-shadow: 0 10px 30px rgba(0,0,0,.5);
}

#lightbox-caption {
  margin-top: 15px;
  color: #fff;
  font-size: 16px;
}

.lightbox-close {
  position: absolute;
  top: 15px;
  right: 25px;
  color: #fff;
  font-size: 40px;
  font-weight: bold;
  cursor: pointer;
  transition: 0.3s;
}

.lightbox-close:hover {
  color: var(--ribatech-turquesa);
}


/* ==================================================
   SECCION MANETA ULTRADELGADA
================================================== */

.seccion-maneta{
  background:var(--ribatech-bg);
}

.contenedor-maneta{
  max-width:1200px;
  margin:auto;
  display:grid;
  grid-template-columns:1fr;
  gap:60px;
  align-items:center;
}

.maneta-texto h2{
  font-size:28px;
  color:var(--ribatech-azul);
  margin-bottom:25px;
  position:relative;
}

.maneta-texto h2::after{
  content:"";
  width:50px;
  height:3px;
  background:var(--ribatech-acento);
  position:absolute;
  left:0;
  bottom:-10px;
}

.maneta-texto p{
  font-size:15px;
  line-height:1.7;
  margin-bottom:18px;
  color:#444;
}

.maneta-imagen img{
  width:100%;
  border-radius:8px;
  box-shadow:0 10px 30px rgba(0,0,0,.08);
}

/* Responsive */

@media(max-width:900px){
  .contenedor-maneta{
    grid-template-columns:1fr;
  }

  .maneta-imagen{
    order:-1;
  }
}

.lista-tecnica{
  list-style:none;
  padding:0;
  font-size:14px;
}

.lista-tecnica > li{
  font-weight:600;
  color:var(--ribatech-azul);
  margin-bottom:12px;
}

.lista-tecnica li ul{
  margin-top:8px;
  padding-left:18px;
}

.lista-tecnica li ul li{
  font-weight:400;
  color:#444;
  padding:6px 0;
  border-bottom:1px solid #e5e5e5;
}