/* ==========================================================
   Volquetes Albertito CH — estilos
   ========================================================== */
:root{
  --oscuro:#14181D;
  --oscuro-2:#1E242B;
  --azul:#0B63E5;
  --azul-hover:#0950B8;
  --celeste:#3FA9FF;
  --gris-fondo:#F4F5F7;
  --gris-borde:#E2E5E9;
  --texto:#1F252C;
  --texto-suave:#5B6470;
  --blanco:#FFFFFF;
  --wa:#25D366;
  --wa-hover:#1EBE5A;
  --radio:14px;
  --sombra:0 10px 30px rgba(20,24,29,.08);
  --header-h:84px;
  --font-tit:'Barlow Condensed',Arial Narrow,Arial,sans-serif;
  --font:'Inter',system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:var(--header-h)}
body{margin:0;font-family:var(--font);color:var(--texto);background:var(--blanco);line-height:1.6;font-size:16px;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--font-tit);line-height:1.05;margin:0 0 .5em;letter-spacing:.2px;text-transform:uppercase}
h2{font-size:clamp(2rem,4.2vw,2.9rem);font-weight:800}
h3{font-size:1.45rem;font-weight:700}
p{margin:0 0 1em}
.container{width:min(1180px,100% - 32px);margin-inline:auto}
.container--narrow{width:min(820px,100% - 32px)}
.center{text-align:center;margin-top:32px}

/* ---------- Botones ---------- */
.btn{white-space:nowrap;display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:12px 22px;border-radius:10px;font-weight:700;font-size:.98rem;border:2px solid transparent;cursor:pointer;transition:background .2s,transform .2s,box-shadow .2s;font-family:var(--font);line-height:1.2;text-align:center}
.btn:hover{transform:translateY(-2px)}
.btn--lg{padding:16px 28px;font-size:1.05rem}
.btn--wa{background:var(--wa);color:#fff;box-shadow:0 8px 20px rgba(37,211,102,.3)}
.btn--wa:hover{background:var(--wa-hover)}
.btn--primary{background:var(--azul);color:#fff}
.btn--primary:hover{background:var(--azul-hover)}
.btn--ghost{border-color:rgba(255,255,255,.7);color:#fff;background:rgba(255,255,255,.06)}
.btn--ghost:hover{background:rgba(255,255,255,.16)}
.btn--dark{background:var(--oscuro);color:#fff}
.btn--dark:hover{background:#000}

/* ---------- Preloader ---------- */
.preloader{position:fixed;inset:0;background:var(--oscuro);z-index:9999;display:grid;place-items:center;transition:opacity .5s,visibility .5s}
.preloader.is-hidden{opacity:0;visibility:hidden}
.preloader__card{width:min(260px,62vw);height:auto;display:flex;flex-direction:column;align-items:center;gap:22px}
.preloader__card img{width:100%;height:auto}
.preloader__bar{width:70%;height:4px;background:rgba(255,255,255,.12);border-radius:4px;overflow:hidden}
.preloader__bar span{display:block;height:100%;width:40%;background:var(--azul);border-radius:4px;animation:carga 1.1s ease-in-out infinite}
@keyframes carga{0%{transform:translateX(-100%)}100%{transform:translateX(260%)}}

/* ---------- Header ---------- */
.header{position:fixed;top:0;left:0;right:0;height:var(--header-h);z-index:100;background:rgba(20,24,29,.92);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:3px solid var(--azul);transition:background .3s}
.header.is-scrolled{background:var(--oscuro)}
.header__inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:20px}
.header__logo{display:flex;align-items:center;height:100%}
.header__logo img{height:68px;width:auto}
.nav{display:flex;gap:22px}
.nav a{white-space:nowrap;color:#fff;font-weight:600;font-size:.93rem;opacity:.88;position:relative;padding:4px 0}
.nav a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--celeste);transition:width .25s}
.nav a:hover{opacity:1}
.nav a:hover::after{width:100%}
.nav__cta-mobile{display:none}
.header__actions{display:flex;align-items:center;gap:14px}
.header__tel{display:flex;align-items:center;gap:8px;color:#fff;font-weight:700;white-space:nowrap}
.header__tel svg{color:var(--celeste)}
.header__wa{padding:10px 16px;font-size:.9rem;box-shadow:none}
.hamburger{display:none;width:44px;height:44px;background:none;border:0;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:5px;padding:0}
.hamburger span{display:block;width:26px;height:3px;background:#fff;border-radius:2px;transition:transform .3s,opacity .3s}
.hamburger.is-open span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.hamburger.is-open span:nth-child(2){opacity:0}
.hamburger.is-open span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:100vh;min-height:100svh;display:flex;align-items:center;color:#fff;overflow:hidden;padding:calc(var(--header-h) + 40px) 0 90px;touch-action:pan-y}
.hero__track{position:absolute;inset:0}
.hero__slide{position:absolute;inset:0;opacity:0;transition:opacity 1s ease}
.hero__slide.is-active{opacity:1}
.hero__slide img{width:100%;height:100%;object-fit:cover;transform:scale(1.06);transition:transform 7s ease}
.hero__slide.is-active img{transform:scale(1)}
.hero__overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(20,24,29,.92) 0%,rgba(20,24,29,.72) 50%,rgba(20,24,29,.35) 100%)}
.hero__content{position:relative;z-index:2}
.hero__badge{display:inline-block;background:var(--celeste);color:var(--oscuro);font-weight:800;font-size:.8rem;text-transform:uppercase;letter-spacing:1px;padding:6px 12px;border-radius:6px;margin-bottom:18px}
.hero__texts{position:relative;min-height:230px;max-width:720px}
.hero__text{position:absolute;top:0;left:0;right:0;opacity:0;transform:translateY(14px);transition:opacity .6s,transform .6s;pointer-events:none}
.hero__text.is-active{opacity:1;transform:none;position:relative;pointer-events:auto}
.hero__text h1,.hero__text h2{font-size:clamp(2.6rem,6.5vw,4.6rem);font-weight:800;margin-bottom:.25em}
.hero__text p{font-size:clamp(1.05rem,1.8vw,1.25rem);max-width:600px;opacity:.92}
.hero__ctas{display:flex;flex-wrap:wrap;gap:14px;margin-top:18px}
.hero__arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:3;width:50px;height:50px;border-radius:50%;border:2px solid rgba(255,255,255,.5);background:rgba(20,24,29,.35);color:#fff;font-size:2rem;line-height:1;cursor:pointer;transition:background .2s}
.hero__arrow:hover{background:var(--azul);border-color:var(--azul)}
.hero__arrow--prev{left:18px}
.hero__arrow--next{right:18px}
.hero__dots{position:absolute;bottom:34px;left:50%;transform:translateX(-50%);display:flex;gap:10px;z-index:3}
.hero__dots button{width:12px;height:12px;border-radius:50%;border:0;background:rgba(255,255,255,.45);cursor:pointer;padding:0;transition:width .3s,background .3s}
.hero__dots button.is-active{background:var(--celeste);width:32px;border-radius:6px}
.hero__hint{display:none}

/* ---------- Trust bar ---------- */
.trust{background:var(--azul);color:#fff}
.trust__grid{display:grid;grid-template-columns:repeat(4,1fr)}
.trust__item{padding:22px 16px;text-align:center;border-right:1px solid rgba(255,255,255,.2)}
.trust__item:last-child{border-right:0}
.trust__item strong{display:block;font-family:var(--font-tit);font-size:1.6rem;text-transform:uppercase;line-height:1.1}
.trust__item span{font-size:.9rem;opacity:.92}

/* ---------- Secciones ---------- */
.section{padding:90px 0}
.section--alt{background:var(--gris-fondo)}
.section--dark{background:var(--oscuro);color:#fff}
.section__head{text-align:center;max-width:720px;margin:0 auto 48px}
.section__head p{color:var(--texto-suave);font-size:1.05rem}
.section__head--light p{color:rgba(255,255,255,.75)}
.eyebrow{display:inline-block;color:var(--azul);font-weight:800;text-transform:uppercase;letter-spacing:2px;font-size:.8rem;margin-bottom:10px}
.eyebrow::before{content:"";display:inline-block;width:22px;height:3px;background:currentColor;vertical-align:middle;margin-right:8px;border-radius:2px}
.section--dark .eyebrow{color:var(--celeste)}

/* Cards */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.card{background:#fff;border:1px solid var(--gris-borde);border-radius:var(--radio);padding:30px 24px;transition:transform .25s,box-shadow .25s,border-color .25s;position:relative;overflow:hidden}
.card::before{content:"";position:absolute;top:0;left:0;right:0;height:5px;background:repeating-linear-gradient(-45deg,var(--azul) 0 12px,#fff 12px 24px);opacity:0;transition:opacity .25s}
.card:hover{transform:translateY(-6px);box-shadow:var(--sombra);border-color:transparent}
.card:hover::before{opacity:1}
.card__icon{width:56px;height:56px;border-radius:12px;background:var(--oscuro);color:var(--celeste);display:grid;place-items:center;margin-bottom:18px}
.card__icon svg{width:28px;height:28px}
.card p{color:var(--texto-suave);font-size:.95rem;margin:0}

/* Split nosotros */
.split{display:grid;grid-template-columns:1fr 1.15fr;gap:60px;align-items:center}
.split__media{position:relative}
.split__media img{border-radius:var(--radio);width:100%;max-height:560px;object-fit:cover;box-shadow:var(--sombra)}
.split__stamp{position:absolute;right:-18px;bottom:28px;background:var(--azul);color:#fff;border-radius:var(--radio);padding:18px 22px;text-align:center;box-shadow:0 12px 30px rgba(11,99,229,.35)}
.split__stamp strong{display:block;font-family:var(--font-tit);font-size:3.2rem;line-height:1}
.split__stamp span{font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:1px}
.split__text p{color:var(--texto-suave)}
.checklist{list-style:none;padding:0;margin:22px 0 0;display:grid;gap:12px}
.checklist li{position:relative;padding-left:34px;font-weight:600}
.checklist li::before{content:"";position:absolute;left:0;top:2px;width:22px;height:22px;border-radius:50%;background:var(--azul) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M5 12l5 5 9-10' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/14px no-repeat}

/* Steps */
.steps{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:none;position:relative}
.step{text-align:center;padding:10px 12px;position:relative}
.step:not(:last-child)::after{content:"";position:absolute;top:36px;left:calc(50% + 46px);right:calc(-50% + 46px);border-top:3px dashed var(--gris-borde)}
.step__n{width:72px;height:72px;border-radius:50%;background:var(--oscuro);color:var(--celeste);font-family:var(--font-tit);font-size:2.2rem;font-weight:800;display:grid;place-items:center;margin:0 auto 18px;border:4px solid var(--azul)}
.step p{color:var(--texto-suave);font-size:.95rem}

/* Zonas */
.zones{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;max-width:960px;margin:0 auto}
.zones span{border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.05);padding:8px 16px;border-radius:30px;font-size:.92rem;font-weight:500}
.zones .zones__more{background:var(--celeste);color:var(--oscuro);border-color:var(--celeste);font-weight:700}

/* Galería */
.gallery{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.gallery__item{padding:0;border:0;border-radius:12px;overflow:hidden;cursor:zoom-in;background:var(--gris-fondo);aspect-ratio:3/4}
.gallery__item img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.gallery__item:hover img{transform:scale(1.06)}

/* CTA band */
.cta-band{background:linear-gradient(120deg,var(--azul) 0%,#0747A6 100%);padding:44px 0}
.cta-band__inner{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.cta-band h2{margin:0 0 .15em;color:#fff}
.cta-band p{margin:0;font-weight:600;color:rgba(255,255,255,.9)}

/* FAQ */
.faq{display:grid;gap:12px}
.faq details{background:#fff;border:1px solid var(--gris-borde);border-radius:12px;padding:0 22px;transition:box-shadow .2s}
.faq details[open]{box-shadow:var(--sombra);border-color:transparent}
.faq summary{list-style:none;cursor:pointer;padding:18px 34px 18px 0;font-weight:700;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:0;top:50%;transform:translateY(-50%);width:26px;height:26px;border-radius:50%;background:var(--oscuro);color:#fff;display:grid;place-items:center;font-size:1.1rem;line-height:1;transition:transform .25s,background .25s}
.faq details[open] summary::after{transform:translateY(-50%) rotate(45deg);background:var(--azul)}
.faq details p{color:var(--texto-suave);padding-bottom:18px;margin:0}

/* Contacto (sin formulario) — cierre oscuro */
.section--contacto .contact__info>p{color:rgba(255,255,255,.75)!important}
.section--contacto .contact__line{background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.12);color:#fff}
.section--contacto .contact__line small{color:rgba(255,255,255,.6)}
.section--contacto .contact__ico{background:var(--azul);color:#fff}
.section--contacto .contact__line--wa{background:var(--wa);border-color:var(--wa)}
.section--contacto .contact__line--wa .contact__ico{background:rgba(255,255,255,.18)}
.contact--noform .contact__info{text-align:center;max-width:980px;margin:0 auto}
.contact--noform .contact__info>p{color:var(--texto-suave);max-width:640px;margin:0 auto 34px;font-size:1.05rem}
.contact__lines{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.contact__line{display:flex;align-items:center;gap:16px;text-align:left;background:#fff;border:1px solid var(--gris-borde);border-radius:var(--radio);padding:22px;font-weight:700;font-size:1.15rem;transition:transform .2s,box-shadow .2s}
a.contact__line:hover{transform:translateY(-4px);box-shadow:var(--sombra)}
.contact__line small{display:block;font-size:.75rem;text-transform:uppercase;letter-spacing:1px;color:var(--texto-suave);font-weight:600}
.contact__ico{flex:0 0 52px;height:52px;border-radius:12px;display:grid;place-items:center;background:var(--oscuro);color:var(--celeste)}
.contact__line--wa{background:var(--wa);color:#fff;border-color:var(--wa)}
.contact__line--wa small{color:rgba(255,255,255,.85)}
.contact__line--wa .contact__ico{background:rgba(255,255,255,.18);color:#fff}

/* Footer mínimo: la página cierra en Contacto */
.footer--min{background:#0E1115;color:rgba(255,255,255,.6);border-top:1px solid rgba(255,255,255,.08);padding:18px 0 22px}
.footer__min{display:flex;align-items:center;justify-content:center;gap:10px 18px;flex-wrap:wrap;font-size:.85rem;text-align:center}
.footer__min img{height:38px;width:auto}
.footer__min a{color:#fff;font-weight:700}
.footer__min a:hover{color:var(--celeste)}
.footer__credito{text-align:center;font-size:.75rem;margin-top:10px;color:rgba(255,255,255,.45);letter-spacing:.5px}
.footer__credito a{color:rgba(255,255,255,.75);font-weight:700}
.footer__credito a:hover{color:var(--celeste)}

/* WhatsApp flotante */
.wa-float{position:fixed;right:20px;bottom:20px;width:60px;height:60px;border-radius:50%;background:var(--wa);color:#fff;display:grid;place-items:center;z-index:90;box-shadow:0 10px 25px rgba(37,211,102,.45);transition:transform .2s}
.wa-float:hover{transform:scale(1.08)}
.wa-float::before{content:"";position:absolute;inset:0;border-radius:50%;border:2px solid var(--wa);animation:pulso 2s infinite}
@keyframes pulso{0%{transform:scale(1);opacity:.8}100%{transform:scale(1.5);opacity:0}}

/* Lightbox */
.lightbox{position:fixed;inset:0;background:rgba(10,12,15,.94);z-index:1000;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s;padding:20px}
.lightbox.is-open{opacity:1;visibility:visible}
.lightbox img{max-width:min(92vw,700px);max-height:86vh;border-radius:10px;object-fit:contain}
.lightbox__close{position:absolute;top:14px;right:18px;background:none;border:0;color:#fff;font-size:2.6rem;cursor:pointer;line-height:1}
.lightbox__nav{position:absolute;top:50%;transform:translateY(-50%);background:rgba(255,255,255,.1);border:0;color:#fff;width:50px;height:50px;border-radius:50%;font-size:2rem;cursor:pointer}
.lightbox__nav--prev{left:14px}
.lightbox__nav--next{right:14px}

/* Animación de aparición */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.reveal.is-visible{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media (max-width:1240px){
  .nav{gap:16px}
  .header__tel span{display:none}
}
@media (max-width:1100px){
  .cards{grid-template-columns:repeat(2,1fr)}
  .gallery{grid-template-columns:repeat(4,1fr)}
}
@media (max-width:920px){
  :root{--header-h:72px}
  .header__logo img{height:58px;width:auto}
  .hamburger{display:flex}
  .nav{position:fixed;top:var(--header-h);left:0;right:0;background:var(--oscuro);flex-direction:column;gap:0;padding:8px 16px 20px;transform:translateY(-120%);transition:transform .35s ease;border-bottom:3px solid var(--azul);z-index:-1}
  .nav.is-open{transform:none}
  .nav a{padding:14px 4px;border-bottom:1px solid rgba(255,255,255,.08);font-size:1.05rem}
  .nav a::after{display:none}
  .nav__cta-mobile{display:block}
  .header__wa{display:none} /* en mobile queda el flotante */
  .header__tel span{display:inline}
  .split{grid-template-columns:1fr;gap:40px}
  .split__media img{max-height:440px}
  .split__stamp{right:14px}
  .steps{grid-template-columns:repeat(2,1fr);row-gap:36px}
  .step::after{display:none}
  .contact__lines{grid-template-columns:1fr;max-width:440px;margin:0 auto}
}
@media (max-width:700px){
  .section{padding:64px 0}
  .hero{align-items:flex-end;padding-bottom:110px}
  .hero__overlay{background:linear-gradient(180deg,rgba(20,24,29,.45) 0%,rgba(20,24,29,.82) 50%,rgba(20,24,29,.96) 100%)}
  .hero__arrow{display:none}
  .hero__texts{min-height:0}
  .hero__ctas .btn{width:100%;white-space:normal;font-size:1rem}
  .hero__dots{bottom:52px}
  .hero__hint{display:flex;align-items:center;gap:8px;position:absolute;bottom:20px;left:50%;transform:translateX(-50%);z-index:3;font-size:.78rem;color:rgba(255,255,255,.8);white-space:nowrap;transition:opacity .4s}
  .hero__hint.is-hidden{opacity:0;pointer-events:none}
  .hero__hint-arrow{font-size:1.1rem;animation:vaiven 1.2s ease-in-out infinite}
  .hero__hint-arrow:last-child{animation-direction:reverse}
  .trust__grid{grid-template-columns:repeat(2,1fr)}
  .trust__item{border-right:0;border-bottom:1px solid rgba(255,255,255,.2);padding:16px 10px}
  .trust__item:nth-child(odd){border-right:1px solid rgba(255,255,255,.2)}
  .trust__item:nth-last-child(-n+2){border-bottom:0}
  .trust__item strong{font-size:1.3rem}
  .cards{grid-template-columns:1fr}
  .gallery{grid-template-columns:repeat(2,1fr);gap:8px}
  .cta-band__inner{text-align:center;justify-content:center}
  .cta-band .btn{width:100%}
  .footer--min{padding-bottom:90px} /* espacio para el botón flotante */
  .header__tel span{font-size:.92rem}
}
@media (max-width:420px){
  .header__logo img{height:54px;width:auto}
  .header__tel span{display:none}
  .header__tel{width:42px;height:42px;justify-content:center;border-radius:50%;background:rgba(255,255,255,.08)}
}
@keyframes vaiven{0%,100%{transform:translateX(0)}50%{transform:translateX(-4px)}}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}html{scroll-behavior:auto}}