.arrow {
  background: rgba(0,0,0,0.12);
  border: none;
  color: var(--accent);
  font-size: 1.3rem;
  padding: .15rem .45rem;
  border-radius: 50%;
  cursor: pointer;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  transition: background .2s, color .2s;
}
.arrow-left {
  left: .5rem;
}
.arrow-right {
  right: .5rem;
}
.arrow:hover {
  background: var(--accent);
  color: #fff;
}
.modal-image-content {
  position: relative;
}
/* Responsive para galería e imágenes */
@media (max-width: 600px) {
  .modal-image-content {
    min-height: 30vh;
    padding: 0.5rem;
  }
  .arrow {
    font-size: 0.75rem;
    padding: 0.05rem 0.18rem;
    min-width: 28px;
    min-height: 28px;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .arrow-left {
    left: 0.1rem;
    right: auto;
  }
  .arrow-right {
    right: 0.1rem;
    left: auto;
  }
  #galleryImageResidential {
    max-width: 95vw;
    max-height: 60vh;
  }
}
/* Responsive para servicios y layout */
@media (max-width: 900px) {
  .container {
    max-width: 98vw;
    padding: .5rem;
  }
  .services-grid {
    grid-template-columns: 1fr;
    gap: 1.2rem;
  }
  .site-header, .nav-inner {
    flex-direction: column;
    align-items: flex-start;
    padding: .5rem 0;
  }
}
@media (max-width: 600px) {
  .site-title {
    font-size: .9rem;
  }
  .service-card h4 {
    font-size: 1rem;
  }
  .service-card p {
    font-size: .9rem;
  }
}
.modal-image-content {
  background: var(--bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 40vh;
}
/*
  styles.css
  Estilos para el sitio Matix - Multi Cleaning
  Comentarios en español para identificar secciones y variables.
*/

:root{
  --bg: #ffffff;
  --surface: #fbfdff;
  --text: #122028;
  --muted: #6b7a83;
  --accent: #E62F2E; /* color principal */
  --accent-2: #E62F2E;
  --card: #ffffff;
  --shadow: 0 6px 18px rgba(18,32,40,0.06);
}

/* Tema oscuro (se activa con la clase .dark en body) */
body.dark{
  --bg: #0f1720;
  --surface: #0b1220;
  --text: #e6eef3;
  --muted: #9fb0bb;
  --accent: #4db6ff;
  --accent-2: #2b88c6;
  --card: #0b1620;
  --shadow: 0 8px 24px rgba(2,6,12,0.6);
}
body.dark .contact-form input, body.dark .contact-form textarea{border-color:rgba(255,255,255,0.15)}
body.dark .btn.secondary{border-color:rgba(255,255,255,0.15)}
body.dark .theme-switch .slider{border-color:rgba(255,255,255,0.15);background:rgba(255,255,255,0.10)}

/* Estilos base */
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  padding-top:80px;
  font-family:Inter, system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial;
  background:linear-gradient(180deg, var(--bg), var(--surface));
  color:var(--text);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  transition:background .3s ease,color .2s ease;
}
.container{max-width:1100px;margin:0 auto;padding: 1rem}

/* Header */
.site-header{background:var(--bg);padding:.8rem 0;position:fixed;top:0;left:0;right:0;z-index:100}
.header-inner{display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;gap:.9rem;align-items:center}
.site-title{margin:0;font-size:1rem;font-weight:700}

/* Controles (tema + idioma) */
.controls{display:flex;gap:.6rem;align-items:center}
.theme-switch{display:inline-flex;align-items:center;cursor:pointer}
.theme-switch input{display:none}
.theme-switch .slider{display:inline-flex;align-items:center;gap:.4rem;border:1px solid rgba(0,0,0,0.15);padding:.35rem;border-radius:999px;background:rgba(0,0,0,0.10)}
.theme-switch .icon-sun,.theme-switch .icon-moon{opacity:.9}
.lang-btn{background:transparent;border:1px solid rgba(0,0,0,0.15);padding:.45rem .6rem;border-radius:8px;cursor:pointer;color:var(--text)}
body.dark .lang-btn{border-color:rgba(255,255,255,0.15)}

/* Navegación */

.nav{background:transparent}
.nav-inner{display:flex;gap:1.2rem;align-items:center;padding:.6rem 0;justify-content:flex-end}
.nav a{color:var(--muted);text-decoration:none;font-weight:600}
.nav a:hover{color:var(--text)}

/* Botón hamburguesa */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 38px;
  height: 38px;
  background: transparent;
  border: none;
  cursor: pointer;
  margin-left: 1rem;
  z-index: 120;
}
.menu-toggle .bar {
  width: 26px;
  height: 3px;
  background: var(--accent);
  margin: 3px 0;
  border-radius: 2px;
  transition: all 0.3s;
}

@media (max-width: 900px) {
  .menu-toggle {
    display: flex;
  }
  .nav {
    display: none;
    position: fixed;
    top: 74px;
    left: 0;
    width: 100vw;
    background: rgba(255, 255, 255, 0.97); /* fondo oscuro semitransparente */
    box-shadow: 0 8px 32px rgba(0,0,0,0.25);
    transition: transform 0.3s ease;
    transform: translateY(-120%);
    z-index: 110;
    backdrop-filter: blur(4px);
  }
  .nav.active {
    display: block;
    transform: translateY(0);
  }
  .nav-inner a {
    color: var(--text);
  }
  .nav-inner a:hover {
    color: var(--accent);
    background: rgba(255,255,255,0.06);
    border-radius: 6px;
    padding-left: 0.5rem;
    padding-right: 0.5rem;
  }
  .nav.active {
    transform: translateY(0);
  }
  .nav-inner {
    flex-direction: column;
    gap: 1.5rem;
    align-items: flex-start;
    padding: 1.2rem 1.5rem;
  }
}

@media (max-width: 900px) {
  /* Eliminar display:block por defecto para evitar que el menú se muestre parcialmente */
}

/* Hero */
.hero{padding:3rem 0 1rem}
.hero-inner{display:flex;gap:2rem;align-items:center}
.hero-copy{flex:1}
.hero-visual{flex:1;text-align:right}
.hero h2{font-size:2rem;margin:3rem 0 .6rem}
.lead{color:var(--muted);margin:0 0 1rem}
.btn{display:inline-block;padding:.65rem 1rem;border-radius:10px;text-decoration:none;border:0;cursor:pointer}
.btn.primary{background:linear-gradient(90deg,var(--accent),var(--accent-2));color:#fff;box-shadow:var(--shadow)}
.btn.secondary{background:transparent;border:1px solid rgba(0,0,0,0.15);color:var(--text)}

/* Secciones */
.section{padding: 1rem 0}
#services{padding-top:1rem}
.section-title{font-size:1.25rem;margin:0 0 .4rem}
.section-sub{color:var(--muted);margin:0 0 1.2rem}

/* Grid de servicios */
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}
.service-card{background:var(--card);padding:1rem;border-radius:12px;box-shadow:var(--shadow)}
.service-card h4{margin:0 0 .4rem}
.service-card p{margin:0;color:var(--muted);font-size:.95rem}

/* Centrar última card cuando queda sola (solo versión web) */
@media (min-width:801px){
  .service-card:last-child:nth-child(3n+1){grid-column: 2 / 3}
}
.service-image{width:100%;height:150px;object-fit:cover;border-radius:8px;margin-bottom:.5rem}

/* About */
.about p{font-size:1.1rem;line-height:1.6}
.about-content{margin-bottom:1.5rem}
.about-attrs ul{list-style:none;padding:1.5rem;margin:0;display:flex;flex-direction:row;gap:1rem;flex-wrap:wrap}
.about-attrs li{background:linear-gradient(90deg, rgba(43,158,217,0.08), rgba(104,198,255,0.03));padding:.6rem 1rem;border-radius:8px;position:relative;flex:1;min-width:200px}
.about-attrs li::before{content:'✓';color:var(--accent);font-weight:bold;margin-right:.5rem}

/* Contacto */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;margin-bottom:1.2rem}
.contact-card{background:var(--card);padding:1rem;border-radius:10px;box-shadow:var(--shadow)}
.contact-card p#phone a{display:block;margin-bottom:.5rem}
.contact-card p#phone a:last-child{margin-bottom:0}
.contact-form{display:grid;gap:.6rem;max-width:520px}
.contact-form label{color:var(--text)}
.contact-form input,.contact-form textarea{padding:.6rem;border-radius:8px;border:1px solid rgba(0,0,0,0.15);background:transparent;color:var(--text)}

/* Footer */
.site-footer{padding:1.2rem 0;border-top:1px solid rgba(0,0,0,0.04);color:var(--muted)}
.footer-inner{display:flex;justify-content:center}
.site-footer a{color:var(--muted);text-decoration:none}
.site-footer a:hover{color:var(--text)}

/* Responsivo */
@media (max-width:800px){
  .hero-inner{flex-direction:column;text-align:left}
  .nav-inner{justify-content:center}
  .services-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
  .about-attrs ul{flex-direction:column}
  .about-attrs li{min-width:auto}
  .footer-inner{text-align:center}
  .site-footer p{text-align:center}
}

/* Pequeños toques visuales */
.service-card:hover{transform:translateY(-6px);transition:transform .25s ease}

/* Botón Ver Galería */
.btn-gallery{
  margin-top:.8rem;
  padding:.5rem 1rem;
  background:linear-gradient(90deg,var(--accent),var(--accent-2));
  color:#fff;
  border:none;
  border-radius:8px;
  cursor:pointer;
  font-weight:600;
  width:100%;
  transition:all .3s ease;
  box-shadow:0 4px 12px rgba(230,47,46,0.2);
}
.btn-gallery:hover{
  transform:translateY(-2px);
  box-shadow:0 6px 16px rgba(230,47,46,0.3);
}

/* Modal */
.modal{
  display:none;
  position:fixed;
  z-index:1000;
  left:0;
  top:0;
  width:100%;
  height:100%;
  overflow:auto;
  background:rgba(0,0,0,0.85);
  backdrop-filter:blur(8px);
  animation:fadeIn .3s ease;
}
.modal.active{display:block}
@keyframes fadeIn{
  from{opacity:0}
  to{opacity:1}
}

.modal-content{
  position:relative;
  background:var(--card);
  margin:2% auto;
  padding:2rem;
  width:90%;
  max-width:1100px;
  border-radius:20px;
  box-shadow:0 20px 60px rgba(0,0,0,0.5);
  animation:slideDown .3s ease;
}
@keyframes slideDown{
  from{transform:translateY(-50px);opacity:0}
  to{transform:translateY(0);opacity:1}
}

.modal-close{
  position:absolute;
  right:1.5rem;
  top:1.5rem;
  font-size:2rem;
  font-weight:bold;
  color:var(--muted);
  background:transparent;
  border:none;
  cursor:pointer;
  width:40px;
  height:40px;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  transition:all .3s ease;
  transform:rotate(90deg);
}

.modal-title{
  margin:0 0 1.5rem;
  font-size:1.8rem;
  color:var(--text);
  text-align:center;
}

/* Tabs */
.gallery-tabs{
  display:flex;
  gap:1rem;
  margin-bottom:2rem;
  justify-content:center;
  border-bottom:2px solid rgba(0,0,0,0.1);
}
body.dark .gallery-tabs{border-bottom-color:rgba(255,255,255,0.1)}

.tab-btn{
  padding:.8rem 1.5rem;
  background:transparent;
  border:none;
  color:var(--muted);
  cursor:pointer;
  font-weight:600;
  position:relative;
  transition:all .3s ease;
  border-radius:8px 8px 0 0;
}
.tab-btn:hover{
  color:var(--text);
  background:rgba(230,47,46,0.05);
}
.tab-btn.active{
  color:var(--accent);
}
.tab-btn.active::after{
  content:'';
  position:absolute;
  bottom:-2px;
  left:0;
  right:0;
  height:3px;
  background:linear-gradient(90deg,var(--accent),var(--accent-2));
  border-radius:3px;
}

/* Secciones de galería */
.gallery-section{
  display:none;
}
.gallery-section.active{
  display:block;
  animation:fadeIn .4s ease;
}

/* Comparison Slider */
.comparison-slider{
  margin-bottom:2rem;
}
.comparison-container{
  position:relative;
  width:100%;
  max-width:800px;
  margin:0 auto;
  overflow:hidden;
  border-radius:16px;
  box-shadow:0 10px 40px rgba(0,0,0,0.2);
  aspect-ratio:16/10;
}
.comparison-before,
.comparison-after{
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:100%;
}
.comparison-before img,
.comparison-after img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}
.comparison-after{
  clip-path:inset(0 50% 0 0);
  transition:clip-path .1s ease;
}

.comparison-label{
  position:absolute;
  top:1rem;
  padding:.4rem .8rem;
  background:rgba(0,0,0,0.7);
  color:#fff;
  font-weight:600;
  font-size:.9rem;
  border-radius:8px;
  z-index:2;
  transition:opacity .3s ease;
}
.before-label{left:1rem}
.after-label{right:1rem}

.comparison-range{
  position:absolute;
  top:50%;
  left:0;
  width:100%;
  transform:translateY(-50%);
  z-index:3;
  opacity:0;
  cursor:ew-resize;
  height:100%;
}

.comparison-divider{
  position:absolute;
  top:0;
  left:50%;
  width:4px;
  height:100%;
  background:linear-gradient(180deg,var(--accent),var(--accent-2));
  transform:translateX(-50%);
  z-index:2;
  pointer-events:none;
  transition:left .1s ease;
}
.comparison-divider::before{
  content:'⟷';
  position:absolute;
  top:50%;
  left:50%;
  transform:translate(-50%,-50%);
  width:40px;
  height:40px;
  background:#fff;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1.5rem;
  color:var(--accent);
  box-shadow:0 4px 12px rgba(0,0,0,0.3);
}

/* Thumbnails */
.gallery-thumbnails{
  display:flex;
  gap:1rem;
  justify-content:center;
  flex-wrap:wrap;
}
.thumbnail-item{
  width:120px;
  height:80px;
  border-radius:8px;
  overflow:hidden;
  cursor:pointer;
  border:3px solid transparent;
  transition:all .3s ease;
  opacity:.6;
}
.thumbnail-item:hover{
  opacity:1;
  transform:scale(1.05);
}
.thumbnail-item.active{
  border-color:var(--accent);
  opacity:1;
}
.thumbnail-item img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}

/* Videos Grid */
.videos-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(300px,1fr));
  gap:1.5rem;
}
.video-item{
  border-radius:12px;
  overflow:hidden;
  box-shadow:0 8px 24px rgba(0,0,0,0.15);
  transition:all .3s ease;
}
.video-item:hover{
  transform:translateY(-4px);
  box-shadow:0 12px 32px rgba(0,0,0,0.25);
}
.video-item video{
  width:100%;
  height:auto;
  display:block;
  background:#000;
}

/* Responsive */
@media (max-width:800px){
  .modal-content{
    width:95%;
    padding:1.5rem;
    margin:5% auto;
  }
  .modal-title{
    font-size:1.3rem;
    padding-right:2rem;
  }
  .gallery-tabs{
    gap:.5rem;
  }
  .tab-btn{
    padding:.6rem 1rem;
    font-size:.9rem;
  }
  .comparison-container{
    aspect-ratio:4/3;
  }
  .thumbnail-item{
    width:80px;
    height:60px;
  }
  .videos-grid{
    grid-template-columns:1fr;
  }
  .comparison-label{
    font-size:.75rem;
    padding:.3rem .6rem;
  }
}