/* ============================================================
   LUBRICENTER LA PLATA — Hoja de estilos
   Paleta tomada de lubricenterlp.com
   ============================================================ */

:root{
  --negro:#000000;
  --rojo:#F40C13;
  --azul-oscuro:#051E60;
  --blanco:#FFFFFF;
  --gris-claro:#F4F4F4;
  --gris-texto:#3A3A3A;
  --whatsapp:#25D366;
}

*{box-sizing:border-box;margin:0;padding:0;}

html{scroll-behavior:smooth;}

body{
  font-family:'Source Sans Pro', Arial, sans-serif;
  color:var(--gris-texto);
  line-height:1.6;
  background:var(--blanco);
}

h1,h2,h3,h4{
  font-family:'Montserrat', Arial, sans-serif;
  font-weight:700;
  line-height:1.25;
}

a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
ul{list-style:none;}

.container{
  max-width:1180px;
  margin:0 auto;
  padding:0 20px;
}

/* ---------- HEADER ---------- */
header.site-header{
  background:var(--negro);
  position:sticky;
  top:0;
  z-index:500;
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 20px;
  max-width:1180px;
  margin:0 auto;
}
.logo img{height:54px;width:auto;}
.logo{font-family:'Montserrat',sans-serif;font-weight:800;color:var(--blanco);font-size:22px;letter-spacing:.5px;}
.logo span{color:var(--rojo);}

nav.main-nav ul{
  display:flex;
  gap:26px;
  flex-wrap:wrap;
}
nav.main-nav a{
  color:var(--blanco);
  font-family:'Roboto',sans-serif;
  font-size:14px;
  font-weight:500;
  text-transform:uppercase;
  letter-spacing:.4px;
  padding:6px 0;
  border-bottom:2px solid transparent;
  transition:border-color .2s, color .2s;
}
nav.main-nav a:hover,
nav.main-nav a.active{
  border-color:var(--rojo);
  color:var(--rojo);
}

.header-social{
  display:flex;
  gap:14px;
  align-items:center;
}
.header-social a{
  width:30px;height:30px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid #444;
  border-radius:50%;
  color:var(--blanco);
  font-size:14px;
  transition:background .2s,border-color .2s;
}
.header-social a:hover{background:var(--rojo);border-color:var(--rojo);}

.nav-toggle{
  display:none;
  background:none;
  border:none;
  color:var(--blanco);
  font-size:26px;
  cursor:pointer;
}

/* ---------- VALUE STRIP ---------- */
.value-strip{
  background:var(--negro);
  border-top:1px solid #1c1c1c;
  overflow:hidden;
  white-space:nowrap;
}
.value-strip .track{
  display:inline-flex;
  gap:50px;
  padding:10px 0;
  animation:scroll-left 28s linear infinite;
}
.value-strip span{
  color:var(--blanco);
  font-family:'Montserrat',sans-serif;
  font-size:12px;
  letter-spacing:2px;
  text-transform:uppercase;
  opacity:.85;
}
@keyframes scroll-left{
  from{transform:translateX(0);}
  to{transform:translateX(-50%);}
}

/* ---------- PAGE HERO (paginas internas) ---------- */
.page-hero{
  background:linear-gradient(rgba(0,0,0,.55),rgba(0,0,0,.55)), var(--azul-oscuro);
  background-size:cover;
  background-position:center;
  color:var(--blanco);
  padding:70px 0 50px;
  text-align:center;
}
.page-hero h1{
  font-size:clamp(26px,4vw,42px);
  text-transform:uppercase;
  margin-bottom:10px;
}
.page-hero p{font-size:17px;opacity:.9;}
.breadcrumb{
  font-size:13px;
  text-transform:uppercase;
  letter-spacing:1px;
  opacity:.7;
  margin-bottom:14px;
}

/* ---------- HOME HERO / SLIDER ---------- */
.hero-slider{
  position:relative;
  height:470px;
  overflow:hidden;
  background:var(--azul-oscuro);
}
.slide{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
  opacity:0;
  transition:opacity 1s ease;
}
.slide.active{opacity:1;}
.slide::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(0,0,0,.45),rgba(0,0,0,.65));
}
.slide-content{
  position:relative;
  z-index:2;
  height:100%;
  display:flex;
  flex-direction:column;
  justify-content:center;
  align-items:flex-start;
  max-width:1180px;
  margin:0 auto;
  padding:0 20px;
  color:var(--blanco);
}
.slide-content h1{
  font-size:clamp(28px,5vw,48px);
  text-transform:uppercase;
  max-width:640px;
  margin-bottom:10px;
}
.slide-content h2{
  font-family:'Source Sans Pro',sans-serif;
  font-weight:400;
  font-size:19px;
  margin-bottom:26px;
  max-width:560px;
}
.hero-buttons{display:flex;gap:14px;flex-wrap:wrap;}
.btn{
  display:inline-block;
  padding:13px 28px;
  font-family:'Montserrat',sans-serif;
  font-weight:600;
  font-size:14px;
  text-transform:uppercase;
  letter-spacing:.5px;
  border-radius:3px;
  transition:transform .15s, opacity .15s;
}
.btn:hover{transform:translateY(-2px);}
.btn-red{background:var(--rojo);color:var(--blanco);}
.btn-outline{border:2px solid var(--blanco);color:var(--blanco);}
.btn-dark{background:var(--negro);color:var(--blanco);}

.slider-nav{
  position:absolute;
  bottom:24px;left:0;right:0;
  display:flex;
  justify-content:center;
  gap:10px;
  z-index:3;
}
.slider-nav button{
  width:11px;height:11px;
  border-radius:50%;
  border:2px solid var(--blanco);
  background:transparent;
  cursor:pointer;
  padding:0;
}
.slider-nav button.active{background:var(--rojo);border-color:var(--rojo);}

.slider-arrow{
  position:absolute;
  top:50%;transform:translateY(-50%);
  z-index:3;
  background:rgba(0,0,0,.4);
  color:var(--blanco);
  border:none;
  width:42px;height:42px;
  border-radius:50%;
  font-size:20px;
  cursor:pointer;
  display:flex;align-items:center;justify-content:center;
}
.slider-arrow:hover{background:var(--rojo);}
.slider-arrow.prev{left:18px;}
.slider-arrow.next{right:18px;}

/* ---------- RED BAND — PATENTE ---------- */
.patente-band{
  background:var(--rojo);
  color:var(--blanco);
  padding:34px 0;
}
.patente-inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.patente-text{max-width:560px;}
.patente-text p{font-size:15px;margin-top:6px;opacity:.95;}
.patente-text h3{
  font-size:20px;
  text-transform:uppercase;
}
.patente-form{
  display:flex;
  gap:0;
}
.patente-form input[type=text]{
  border:none;
  padding:14px 16px;
  font-size:15px;
  width:220px;
  font-family:'Source Sans Pro',sans-serif;
  border-radius:3px 0 0 3px;
}
.patente-form button{
  border:none;
  background:var(--negro);
  color:var(--blanco);
  padding:0 26px;
  font-family:'Montserrat',sans-serif;
  font-weight:700;
  letter-spacing:.5px;
  cursor:pointer;
  border-radius:0 3px 3px 0;
  transition:background .2s;
}
.patente-form button:hover{background:#1a1a1a;}
.programa-link{
  margin-top:10px;
  display:inline-block;
  font-size:13px;
  text-decoration:underline;
  opacity:.9;
}
.patente-actions{
  margin-top:16px;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}
.btn-sm{
  padding:11px 20px;
  font-size:13px;
}
.btn-update{
  background:var(--whatsapp);
  color:var(--blanco);
  border:none;
}
.btn-update:hover{background:#1fb656;}

/* ---------- SECCIONES GENERALES ---------- */
section{padding:64px 0;}
.section-alt{background:var(--gris-claro);}
.section-title{
  text-align:center;
  margin-bottom:14px;
  text-transform:uppercase;
  font-size:clamp(22px,3vw,30px);
}
.section-sub{
  text-align:center;
  max-width:680px;
  margin:0 auto 40px;
  color:#666;
  font-size:16px;
}
.eyebrow{
  text-align:center;
  display:block;
  color:var(--rojo);
  font-family:'Montserrat',sans-serif;
  font-weight:700;
  letter-spacing:2px;
  font-size:12px;
  text-transform:uppercase;
  margin-bottom:10px;
}

/* Quienes somos / institucional */
.about-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:50px;
  align-items:center;
}
.about-grid img{border-radius:6px;}
.about-text h2{font-size:28px;margin-bottom:18px;text-transform:uppercase;}
.about-text p{margin-bottom:16px;color:#444;}
.firma{margin-top:24px;}
.firma img{height:60px;}
.firma p{font-weight:700;font-family:'Montserrat',sans-serif;margin-top:6px;color:var(--negro);}

/* Banner oscuro institucional */
.dark-banner{
  background:linear-gradient(rgba(0,0,0,.7),rgba(0,0,0,.7)), var(--negro);
  background-size:cover;background-position:center;
  color:var(--blanco);
  text-align:center;
  padding:70px 20px;
}
.dark-banner h2{
  font-size:clamp(20px,3vw,28px);
  max-width:780px;
  margin:0 auto;
  text-transform:uppercase;
}

/* Galeria */
.gallery-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
}
.gallery-grid img{border-radius:6px;height:200px;width:100%;object-fit:cover;}

/* Servicios grid */
.services-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:28px;
}
.service-card{
  background:var(--blanco);
  border:1px solid #e7e7e7;
  border-radius:8px;
  padding:30px 24px;
  text-align:center;
  transition:transform .2s, box-shadow .2s;
}
.service-card:hover{transform:translateY(-4px);box-shadow:0 10px 24px rgba(0,0,0,.08);}
.service-card .icon{
  width:58px;height:58px;
  margin:0 auto 18px;
  background:var(--rojo);
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:var(--blanco);
  font-size:24px;
}
.service-card h3{font-size:17px;margin-bottom:10px;text-transform:uppercase;}
.service-card p{font-size:14px;color:#666;}

/* Layout con sidebar (servicios.html) */
.with-sidebar{
  display:grid;
  grid-template-columns:2.2fr 1fr;
  gap:48px;
}
.content-block h2{font-size:24px;margin:34px 0 14px;text-transform:uppercase;}
.content-block h2:first-child{margin-top:0;}
.content-block p{margin-bottom:14px;}
.content-block ul{margin:0 0 14px 0;}
.content-block ul li{
  padding:7px 0 7px 26px;
  position:relative;
  border-bottom:1px solid #eee;
}
.content-block ul li::before{
  content:"\203A";
  position:absolute;left:0;
  color:var(--rojo);
  font-weight:700;
  font-size:18px;
}
.sidebar{
  background:var(--negro);
  color:var(--blanco);
  border-radius:8px;
  padding:30px 24px;
  align-self:start;
  position:sticky;
  top:100px;
}
.sidebar h3{font-size:16px;text-transform:uppercase;margin-bottom:18px;color:var(--rojo);}
.sidebar .sb-item{
  display:block;
  padding:10px 0;
  border-bottom:1px solid #2a2a2a;
  font-size:14px;
}
.sidebar .sb-item:last-of-type{border-bottom:none;}
.sidebar .btn{margin-top:18px;width:100%;text-align:center;}

.note-box{
  background:var(--gris-claro);
  border-left:4px solid var(--rojo);
  padding:18px 22px;
  font-size:14px;
  color:#555;
  margin-top:24px;
  border-radius:0 6px 6px 0;
}

/* Productos */
.products-columns{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:50px;
}
.products-columns h3{
  font-size:18px;
  text-transform:uppercase;
  margin-bottom:16px;
  color:var(--azul-oscuro);
}
.products-columns ul li{
  padding:8px 0 8px 24px;
  position:relative;
  border-bottom:1px solid #eee;
  font-size:15px;
}
.products-columns ul li::before{
  content:"•";
  color:var(--rojo);
  position:absolute;left:0;
  font-size:20px;
  line-height:1;
}

/* Testimonios */
.testimonials-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:28px;
}
.testimonial-card{
  background:var(--blanco);
  border:1px solid #eee;
  border-top:4px solid var(--rojo);
  border-radius:6px;
  padding:28px 24px;
  box-shadow:0 4px 14px rgba(0,0,0,.04);
}
.stars{color:#f5b301;font-size:16px;margin-bottom:12px;}
.testimonial-card p{font-style:italic;color:#444;font-size:15px;}

/* Tecnologia steps */
.tech-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:50px;
  align-items:center;
}
.tech-list li{
  padding:10px 0 10px 28px;
  position:relative;
  border-bottom:1px solid #eee;
}
.tech-list li::before{
  content:"✓";
  position:absolute;left:0;
  color:var(--rojo);
  font-weight:700;
}
.steps-row{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  margin-top:40px;
}
.step{
  text-align:center;
  padding:24px 14px;
}
.step .num{
  width:48px;height:48px;
  border-radius:50%;
  background:var(--negro);
  color:var(--blanco);
  font-family:'Montserrat',sans-serif;
  font-weight:700;
  display:flex;align-items:center;justify-content:center;
  margin:0 auto 14px;
}
.step h4{font-size:15px;text-transform:uppercase;margin-bottom:8px;}
.step p{font-size:13px;color:#666;}

/* Contacto */
.contact-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:50px;
}
.contact-info .item{margin-bottom:22px;}
.contact-info .item strong{
  display:block;
  font-family:'Montserrat',sans-serif;
  text-transform:uppercase;
  font-size:13px;
  letter-spacing:.5px;
  color:var(--rojo);
  margin-bottom:4px;
}
.contact-form input,
.contact-form textarea{
  width:100%;
  padding:13px 14px;
  border:1px solid #ddd;
  border-radius:4px;
  margin-bottom:14px;
  font-family:'Source Sans Pro',sans-serif;
  font-size:15px;
}
.contact-form textarea{min-height:130px;resize:vertical;}
.contact-form button{
  border:none;
  background:var(--negro);
  color:var(--blanco);
  padding:14px 30px;
  font-family:'Montserrat',sans-serif;
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:.5px;
  border-radius:4px;
  cursor:pointer;
}
.contact-form button:hover{background:var(--rojo);}
.map-frame{
  margin-top:50px;
  border-radius:8px;
  overflow:hidden;
  border:1px solid #eee;
}
.map-frame iframe{width:100%;height:380px;border:0;display:block;}

/* Consejos grid */
.tips-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:22px;
}
.tips-grid.banners{
  grid-template-columns:repeat(3,1fr);
  gap:18px;
}
.tips-grid.banners .tip-card{
  border:none;
  border-radius:6px;
  overflow:hidden;
  box-shadow:0 4px 16px rgba(0,0,0,.1);
  transition:transform .2s;
}
.tips-grid.banners .tip-card:hover{transform:translateY(-4px);}
.tips-grid.banners .tip-card img{width:100%;height:auto;}
.tips-grid.banners .tip-card .tip-body{display:none;}
.tip-card{
  border:1px solid #eee;
  border-radius:8px;
  overflow:hidden;
  background:var(--blanco);
}
.tip-card img{width:100%;height:auto;object-fit:contain;}
.tip-card .tip-body{padding:16px;}
.tip-card h4{font-size:14px;text-transform:uppercase;}

/* Programa pasos */
.programa-hero{
  background:linear-gradient(135deg,var(--azul-oscuro),var(--negro));
  color:var(--blanco);
  text-align:center;
  padding:80px 20px 70px;
}
.programa-hero h1{font-size:clamp(26px,4vw,40px);text-transform:uppercase;margin-bottom:14px;}
.programa-hero p{max-width:620px;margin:0 auto 30px;opacity:.9;}
.programa-form{
  max-width:460px;
  margin:0 auto;
  display:flex;
  gap:0;
}
.programa-form input{
  flex:1;
  border:none;
  padding:16px;
  font-size:16px;
  border-radius:4px 0 0 4px;
}
.programa-form button{
  border:none;
  background:var(--rojo);
  color:var(--blanco);
  padding:0 28px;
  font-family:'Montserrat',sans-serif;
  font-weight:700;
  border-radius:0 4px 4px 0;
  cursor:pointer;
}

/* ---------- FOOTER ---------- */
footer.site-footer{
  background:var(--negro);
  color:#bbb;
  padding:50px 0 22px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr;
  gap:40px;
  margin-bottom:34px;
}
.footer-grid h4{
  color:var(--blanco);
  font-size:15px;
  text-transform:uppercase;
  margin-bottom:16px;
}
.footer-grid p,.footer-grid a{
  font-size:14px;
  color:#999;
  display:block;
  margin-bottom:8px;
}
.footer-grid a:hover{color:var(--rojo);}
.footer-social{display:flex;gap:12px;margin-top:10px;}
.footer-social a{
  width:32px;height:32px;
  border:1px solid #333;
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:var(--blanco);
}
.footer-social a:hover{background:var(--rojo);border-color:var(--rojo);}
.footer-bottom{
  border-top:1px solid #1f1f1f;
  padding-top:18px;
  text-align:center;
  font-size:12px;
  color:#666;
}

/* ---------- WHATSAPP FLOTANTE ---------- */
.whatsapp-float{
  position:fixed;
  bottom:24px;right:24px;
  width:58px;height:58px;
  background:var(--whatsapp);
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 18px rgba(0,0,0,.3);
  z-index:600;
  transition:transform .2s;
}
.whatsapp-float:hover{transform:scale(1.08);}
.whatsapp-float svg{width:32px;height:32px;fill:#fff;}


/* ---------- MI AUTO SIDEBAR ---------- */
.patente-box{
  background:var(--negro);
  color:var(--blanco);
  border-radius:8px;
  padding:22px 20px;
  text-align:center;
  margin-bottom:18px;
}
.patente-box .label-pat{
  font-family:'Montserrat',sans-serif;
  font-size:11px;
  text-transform:uppercase;
  letter-spacing:2px;
  color:#999;
  margin-bottom:6px;
}
.patente-box .pat-number{
  font-family:'Montserrat',sans-serif;
  font-size:24px;
  font-weight:800;
  letter-spacing:3px;
}
.sidebar-menu{
  background:var(--blanco);
  border:1px solid #e7e7e7;
  border-radius:8px;
  overflow:hidden;
}
.sidebar-menu .sm-title{
  background:#f7f7f7;
  padding:14px 18px;
  font-family:'Montserrat',sans-serif;
  font-size:13px;
  text-transform:uppercase;
  letter-spacing:.5px;
  color:var(--negro);
  font-weight:700;
  border-bottom:1px solid #e7e7e7;
}
.sidebar-menu a{
  display:block;
  padding:13px 18px;
  border-bottom:1px solid #f0f0f0;
  color:#333;
  font-size:14px;
  text-decoration:none;
  transition:background .15s, color .15s;
}
.sidebar-menu a:hover{background:#fafafa; color:var(--rojo);}
.sidebar-menu a.active{color:var(--rojo); font-weight:600;}
.sidebar-menu a:last-child{border-bottom:none;}
.sidebar-menu a::before{
  content:"\203A";
  color:var(--rojo);
  margin-right:8px;
  font-weight:700;
}

/* ---------- RESPONSIVE ---------- */
@media (max-width:980px){
  .about-grid,.tech-grid,.contact-grid,.products-columns,.with-sidebar{grid-template-columns:1fr;}
  .gallery-grid{grid-template-columns:repeat(2,1fr);}
  .services-grid{grid-template-columns:repeat(2,1fr);}
  .testimonials-grid{grid-template-columns:1fr;}
  .steps-row{grid-template-columns:repeat(2,1fr);}
  .tips-grid{grid-template-columns:repeat(2,1fr);}
  .sidebar{position:static;}
}
@media (max-width:760px){
  nav.main-nav{
    display:none;
    position:absolute;
    top:100%;left:0;right:0;
    background:var(--negro);
    flex-direction:column;
    padding:10px 20px 20px;
  }
  nav.main-nav.open{display:flex;}
  nav.main-nav ul{flex-direction:column;gap:0;}
  nav.main-nav a{display:block;padding:12px 0;border-bottom:1px solid #1c1c1c;}
  .nav-toggle{display:block;}
  .header-social{display:none;}
  .hero-slider{height:480px;}
  .patente-inner{flex-direction:column;align-items:flex-start;}
  .patente-form{width:100%;}
  .patente-form input[type=text]{flex:1;width:auto;}
  .services-grid,.gallery-grid,.tips-grid{grid-template-columns:1fr;}
  .steps-row{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .programa-form{flex-direction:column;}
  .programa-form input,.programa-form button{border-radius:4px;}
  .programa-form button{padding:14px;margin-top:10px;}
}

/* ---------- PAGE HERO SIMPLE (sin texto encima) ---------- */
.page-hero-simple{
  height:280px;
  background-size:cover;
  background-position:center;
  position:relative;
}
.page-hero-simple::after{
  content:"";
  position:absolute;
  bottom:0;left:0;right:0;
  height:80px;
  background:linear-gradient(transparent, rgba(0,0,0,.4));
}

/* ---------- GALLERY EXPANDED ---------- */
.gallery-grid-expanded{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:12px;
}
.gallery-grid-expanded img{
  border-radius:6px;
  height:220px;
  width:100%;
  object-fit:cover;
  transition:transform .2s;
  cursor:pointer;
}
.gallery-grid-expanded img:hover{transform:scale(1.03);}
@media (max-width:980px){
  .gallery-grid-expanded{grid-template-columns:repeat(2,1fr);}
  .tips-grid.banners{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:760px){
  .gallery-grid-expanded{grid-template-columns:1fr;}
  .tips-grid.banners{grid-template-columns:1fr; max-width:400px; margin:0 auto;}
}

/* ---------- SOCIAL ICONS BRAND COLORS ---------- */
.header-social a.fb{border-color:#1877F2;background:#1877F2;color:#fff;}
.header-social a.fb:hover{background:#145db5;border-color:#145db5;}
.header-social a.ig{border:none;background:linear-gradient(45deg,#f09433,#e6683c,#dc2743,#cc2366,#bc1888);color:#fff;}
.header-social a.ig:hover{opacity:.85;}
.footer-social a.fb{border-color:#1877F2;background:#1877F2;color:#fff;}
.footer-social a.fb:hover{background:#145db5;border-color:#145db5;}
.footer-social a.ig{border:none;background:linear-gradient(45deg,#f09433,#e6683c,#dc2743,#cc2366,#bc1888);color:#fff;}
.footer-social a.ig:hover{opacity:.85;}