/* ============================================
   JH MANTENIMIENTO GRAL — sistema de diseño
   Negro carbón + ámbar dorado, editorial industrial
   ============================================ */

:root{
  --bg:#0d0d0d;
  --bg-2:#141414;
  --bg-3:#1b1b1b;
  --amber:#F0A93A;
  --amber-2:#F5843A;
  --amber-deep:#412402;
  --white:#F5F5F5;
  --gray:#B0AAA6;
  --gray-dim:#7d7873;
  --border:rgba(245,245,245,.1);
  --radius:2px;
  --radius-card:10px;
  --ff:'DM Sans',sans-serif;
  --ff-head:'Montserrat',sans-serif;
  --container:1240px;
  --shadow-card:0 24px 48px -26px rgba(0,0,0,.65), 0 6px 16px -8px rgba(0,0,0,.5);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--ff);
  background:var(--bg);
  color:var(--white);
  font-weight:400;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer}
input,textarea{font-family:inherit}

.container{max-width:var(--container);margin:0 auto;padding:0 24px}

.skip-link{
  position:absolute;left:-9999px;top:0;background:var(--amber);color:var(--bg);
  padding:12px 20px;z-index:999;font-weight:700;
}
.skip-link:focus{left:24px;top:24px}

.text-amber{
  background:linear-gradient(100deg,var(--amber) 0%,var(--amber-2) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}

/* -------- tipografía: Montserrat para títulos/labels, DM Sans para texto -------- */
h1,h2,h3,h4,
.brand-name,.eyebrow,.kicker,.main-nav a,.footer-nav a,
.btn,.stat strong,.team-role,.obra-num,.service-num,
.counter-number,.counter-label,.loader-mark,.loader-name{
  font-family:var(--ff-head);
}

/* -------- reveal animation -------- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s cubic-bezier(.22,.68,.32,1),transform .7s cubic-bezier(.22,.68,.32,1)}
.reveal.is-visible{opacity:1;transform:none}
/* tarjetas y bloques tipo "card": entran con un leve escalado además del desplazamiento */
.reveal-pop{transform:translateY(28px) scale(.94)}
.reveal-pop.is-visible{transform:none}
/* defensive: never let content stay invisible if JS fails */
.no-js .reveal,
.reveal[data-split]{opacity:1;transform:none}

/* -------- icons -------- */
.ic{width:20px;height:20px;fill:currentColor;flex-shrink:0}
.ic-lg{width:28px;height:28px}
.ic-xl{width:34px;height:34px;color:var(--amber)}

/* ============ HEADER ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  padding:18px 0;
  background:linear-gradient(to bottom, rgba(13,13,13,.85), transparent);
  transition:background .35s ease, padding .35s ease, box-shadow .35s ease;
}
.site-header.scrolled{
  background:rgba(13,13,13,.92);
  backdrop-filter:blur(10px);
  padding:12px 0;
  box-shadow:0 1px 0 var(--border);
}
.header-inner{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:24px}
.brand{display:flex;align-items:center;gap:12px;justify-self:start}
.brand-logo{width:44px;height:44px;object-fit:contain}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-weight:900;font-size:.92rem;letter-spacing:.03em}
.brand-name strong{color:var(--amber)}
.brand-sub{font-size:.62rem;letter-spacing:.12em;color:var(--gray);text-transform:uppercase}

.main-nav{display:flex;align-items:center;gap:32px;justify-self:center}
.main-nav a{
  font-size:.82rem;font-weight:600;letter-spacing:.04em;text-transform:uppercase;
  color:var(--gray);position:relative;padding:4px 0;line-height:1;transition:color .2s ease;
}
.main-nav a:hover,.main-nav a:focus-visible{color:var(--white)}
.main-nav a::after{
  content:'';position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--amber);
  transition:width .25s ease;
}
.main-nav a:hover::after{width:100%}

.header-actions{display:flex;align-items:center;gap:16px;justify-self:end}

.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:38px;height:38px;background:none;border:1px solid var(--border);border-radius:var(--radius);
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--white);margin:0 auto;transition:transform .25s ease,opacity .25s ease}
.nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.active span:nth-child(2){opacity:0}
.nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:13px 26px;font-weight:700;font-size:.82rem;letter-spacing:.04em;text-transform:uppercase;
  border-radius:var(--radius);border:1px solid transparent;transition:transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
  white-space:nowrap;
}
.btn-sm{padding:10px 18px;font-size:.72rem}
.btn-lg{padding:16px 32px;font-size:.85rem}
.btn-block{width:100%}
.btn-amber{
  background:linear-gradient(100deg,var(--amber) 0%,var(--amber-2) 100%);
  color:var(--amber-deep);
}
.btn-amber:hover{transform:translateY(-2px);box-shadow:0 10px 30px -8px rgba(240,169,58,.5)}
.btn-outline{
  border-color:rgba(245,245,245,.35);color:var(--white);
}
.btn-outline:hover{border-color:var(--amber);color:var(--amber);transform:translateY(-2px)}

/* ============ HERO ============ */
.hero{position:relative;min-height:100vh;display:flex;flex-direction:column;justify-content:center;padding-top:120px}
.hero-media{position:absolute;inset:0;z-index:0;overflow:hidden}
.hero-media img{width:100%;height:118%;object-fit:cover;object-position:60% 30%;will-change:transform}
.hero-media .hero-video{display:none;width:100%;height:118%;object-fit:cover}
.hero-media .hero-video-desktop{display:block;object-position:60% 30%}
.hero-overlay{
  position:absolute;inset:0;
  background:
    linear-gradient(90deg, rgba(13,13,13,.96) 0%, rgba(13,13,13,.82) 42%, rgba(13,13,13,.55) 75%, rgba(13,13,13,.75) 100%),
    linear-gradient(to top, rgba(13,13,13,1) 0%, rgba(13,13,13,0) 30%);
}
.hero-content{position:relative;z-index:1;max-width:780px;padding-bottom:64px}
.eyebrow{
  display:flex;align-items:center;gap:12px;color:var(--amber);
  font-size:.78rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;margin-bottom:20px;
}
.eyebrow-dash{width:36px;height:2px;background:var(--amber);display:inline-block}
.hero h1{
  font-size:clamp(2.4rem,5.4vw,4.1rem);font-weight:900;line-height:1.06;letter-spacing:-.01em;
  margin-bottom:22px;
}
.hero-lead{font-size:1.08rem;color:var(--gray);max-width:560px;margin-bottom:36px}
.hero-ctas{display:flex;gap:16px;flex-wrap:wrap}

.stats-bar{
  position:relative;z-index:1;border-top:1px solid var(--border);background:rgba(13,13,13,.55);backdrop-filter:blur(6px);
  overflow:hidden;padding:28px 0;
  mask-image:linear-gradient(90deg, transparent 0, #000 64px, #000 calc(100% - 64px), transparent 100%);
  -webkit-mask-image:linear-gradient(90deg, transparent 0, #000 64px, #000 calc(100% - 64px), transparent 100%);
}
.stats-track{display:flex;width:max-content}
.stats-track-inner{
  display:flex;align-items:center;gap:64px;flex-shrink:0;
  animation:stats-marquee 34s linear infinite;
  padding-right:64px;
}
@keyframes stats-marquee{
  from{transform:translateX(0)}
  to{transform:translateX(-100%)}
}
.stat{display:flex;align-items:center;gap:14px;white-space:nowrap}
.stat .ic-lg{color:var(--amber);flex-shrink:0}
.stat strong{display:block;font-size:.95rem;font-weight:800;letter-spacing:.01em}
.stat span{display:block;font-size:.74rem;color:var(--gray);text-transform:uppercase;letter-spacing:.06em}

/* ============ SECTIONS (generic) ============ */
.section{padding:110px 0}
.section-dark{background:var(--bg-2)}
.kicker{
  color:var(--amber);font-weight:700;font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;margin-bottom:14px;
}
.section-title{
  font-size:clamp(1.8rem,3.4vw,2.6rem);font-weight:900;line-height:1.15;letter-spacing:-.01em;max-width:760px;
}
.section-lead{color:var(--gray);font-size:1.02rem;max-width:640px;margin-top:18px}

/* ============ SERVICIOS ============ */
.services-grid{
  margin-top:56px;display:grid;grid-template-columns:repeat(4,1fr);gap:22px;
}
.service-card{
  position:relative;padding:36px 28px;background:var(--bg-2);border:1px solid var(--border);
  border-radius:var(--radius-card);box-shadow:var(--shadow-card);
  transition:background .25s ease,transform .3s ease,box-shadow .3s ease;
}
.service-card:hover{background:#181410;transform:translateY(-4px);box-shadow:0 30px 56px -24px rgba(0,0,0,.7),0 8px 18px -6px rgba(0,0,0,.55)}
.service-card .service-num{
  position:absolute;top:20px;right:24px;z-index:6;font-size:.72rem;color:var(--gray-dim);font-weight:700;letter-spacing:.06em;
}
.service-card .ic-xl{margin-bottom:22px}
.service-card h3{font-size:1.05rem;font-weight:800;margin-bottom:10px}
.service-card p{font-size:.88rem;color:var(--gray);line-height:1.55}

/* ============ OBRAS ============ */
.obras-grid{margin-top:56px;display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.obra-card{
  position:relative;overflow:hidden;aspect-ratio:3/4;background:var(--bg-3);
  border-radius:var(--radius-card);box-shadow:var(--shadow-card);
  transition:transform .3s ease,box-shadow .3s ease;
}
.obra-card:hover{transform:translateY(-4px);box-shadow:0 30px 56px -24px rgba(0,0,0,.7),0 8px 18px -6px rgba(0,0,0,.55)}
.obra-card img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.obra-card:hover img{transform:scale(1.06)}
.obra-card .obra-num{
  position:absolute;top:16px;left:16px;z-index:6;font-size:.85rem;font-weight:800;color:var(--amber);
  background:rgba(13,13,13,.6);padding:4px 10px;letter-spacing:.05em;border-radius:4px;
}
.obra-card figcaption{
  position:absolute;left:0;right:0;bottom:0;z-index:6;padding:16px;font-size:.78rem;font-weight:600;
  color:var(--white);background:linear-gradient(to top, rgba(13,13,13,.92), transparent);
}

/* ============ CONTADORES ============ */
.counters-section{padding:80px 0}
.counters-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;text-align:center}
.counter-item{
  display:flex;flex-direction:column;align-items:center;gap:6px;padding:28px 20px;
  background:var(--bg-2);border:1px solid var(--border);border-radius:var(--radius-card);box-shadow:var(--shadow-card);
}
.counter-number{
  font-size:clamp(2.4rem,5vw,3.4rem);font-weight:900;line-height:1;
  background:linear-gradient(100deg,var(--amber) 0%,var(--amber-2) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.counter-label{font-size:.8rem;color:var(--gray);text-transform:uppercase;letter-spacing:.08em;font-weight:700}

/* ============ LOADER ============ */
.loader{
  position:fixed;inset:0;z-index:9999;background:var(--bg);
  display:flex;align-items:center;justify-content:center;
  transition:opacity .6s ease, visibility .6s ease;
  animation:loader-auto-hide .01s linear 4.5s forwards;
}
.loader.hidden{opacity:0;visibility:hidden;pointer-events:none}
@keyframes loader-auto-hide{ to{opacity:0;visibility:hidden;pointer-events:none} }
.loader-inner{display:flex;flex-direction:column;align-items:center;gap:14px}
.loader-mark{
  font-size:2.6rem;font-weight:900;letter-spacing:.02em;
  background:linear-gradient(100deg,var(--amber) 0%,var(--amber-2) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.loader-name{font-size:.72rem;font-weight:700;letter-spacing:.32em;color:var(--gray);text-transform:uppercase}
.loader-bar{display:block;width:160px;height:2px;background:var(--border);margin-top:6px;overflow:hidden}
.loader-bar-fill{
  display:block;height:100%;width:0;background:linear-gradient(90deg,var(--amber),var(--amber-2));
  animation:loader-fill 1.6s cubic-bezier(.4,0,.2,1) forwards;
}
@keyframes loader-fill{ from{width:0} to{width:100%} }

/* ============ NOSOTROS / EQUIPO ============ */
.team-section{background:var(--bg-2)}
.team-grid{margin-top:56px;display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.team-card{
  position:relative;overflow:hidden;background:var(--bg-3);
  border-radius:var(--radius-card);box-shadow:var(--shadow-card);
  transition:transform .3s ease,box-shadow .3s ease;
}
.team-card:hover{transform:translateY(-4px);box-shadow:0 30px 56px -24px rgba(0,0,0,.7),0 8px 18px -6px rgba(0,0,0,.55)}
.team-photo{position:relative;aspect-ratio:3/4;overflow:hidden}
.team-photo img{width:100%;height:100%;object-fit:cover;filter:grayscale(.25) contrast(1.05);transition:transform .6s ease, filter .4s ease}
.team-card:hover .team-photo img{transform:scale(1.05);filter:grayscale(0) contrast(1.05)}
.team-photo::after{
  content:'';position:absolute;inset:0;background:linear-gradient(to top, rgba(13,13,13,.9) 0%, rgba(13,13,13,.1) 55%, transparent 100%);
}
.team-card .team-info{position:relative;margin-top:-90px;z-index:6;padding:0 20px 24px}
.team-role{display:block;font-size:.66rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--amber);margin-bottom:6px}
.team-info h3{font-size:1.35rem;font-weight:900;margin-bottom:8px}
.team-info p{font-size:.82rem;color:var(--gray);line-height:1.5}

/* ============ POR QUÉ ELEGIRNOS ============ */
.why-section{position:relative;overflow:hidden}
.why-bg{position:absolute;inset:0;z-index:0;overflow:hidden}
.why-bg img{width:100%;height:118%;object-fit:cover;object-position:50% 20%;opacity:.22;will-change:transform}
.why-section::before{content:'';position:absolute;inset:0;background:linear-gradient(180deg, var(--bg) 0%, rgba(13,13,13,.85) 60%, var(--bg) 100%);z-index:0}
.why-inner{position:relative;z-index:1}
.why-grid{margin-top:48px;display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.why-item{
  border-top:2px solid var(--amber);background:var(--bg-2);padding:20px 22px 22px;
  border-radius:var(--radius-card);box-shadow:var(--shadow-card);
  transition:transform .3s ease,box-shadow .3s ease;
}
.why-item:hover{transform:translateY(-4px);box-shadow:0 30px 56px -24px rgba(0,0,0,.7),0 8px 18px -6px rgba(0,0,0,.55)}
.why-item h3{font-size:1rem;font-weight:800;margin-bottom:10px}
.why-item p{font-size:.86rem;color:var(--gray);line-height:1.55}

/* ============ FAQ ============ */
.faq-container{max-width:820px}
.faq-list{margin-top:48px;display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--bg-2);border:1px solid var(--border);padding:20px 24px;
  border-radius:var(--radius-card);box-shadow:var(--shadow-card);
  transition:transform .3s ease,box-shadow .3s ease;
}
.faq-item:hover{transform:translateY(-2px);box-shadow:0 30px 56px -24px rgba(0,0,0,.7),0 8px 18px -6px rgba(0,0,0,.55)}
.faq-item summary{
  cursor:pointer;font-weight:700;font-size:1rem;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:'+';font-size:1.4rem;color:var(--amber);font-weight:400;flex-shrink:0;transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item p{margin-top:14px;color:var(--gray);font-size:.92rem;line-height:1.6;max-width:640px}

/* ============ CTA / CONTACTO ============ */
.cta-section{position:relative;overflow:hidden}
.cta-bg{position:absolute;inset:0;z-index:0;overflow:hidden}
.cta-bg img{width:100%;height:118%;object-fit:cover;object-position:50% 25%;opacity:.16;will-change:transform}
.cta-section::before{content:'';position:absolute;inset:0;background:linear-gradient(180deg, var(--bg-2) 0%, rgba(13,13,13,.92) 100%);z-index:0}
.cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.1fr .9fr;gap:64px;align-items:start}
.contact-list{margin-top:32px;display:flex;flex-direction:column;gap:16px}
.contact-list li{display:flex;align-items:center;gap:14px;font-size:.98rem}
.contact-list .ic{color:var(--amber)}
.contact-list a:hover{color:var(--amber)}

.cta-form{
  background:var(--bg-2);border:1px solid var(--border);padding:36px;display:flex;flex-direction:column;gap:18px;
  border-radius:var(--radius-card);box-shadow:var(--shadow-card);
}
.cta-form label{display:flex;flex-direction:column;gap:8px;font-size:.78rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--gray)}
.cta-form input,.cta-form textarea{
  background:var(--bg);border:1px solid var(--border);color:var(--white);padding:12px 14px;font-size:.92rem;
  font-weight:400;border-radius:var(--radius);resize:vertical;
}
.cta-form input:focus,.cta-form textarea:focus{outline:none;border-color:var(--amber)}
.form-note{font-size:.74rem;color:var(--gray-dim);text-align:center;text-transform:none;font-weight:400;letter-spacing:0}

/* ============ FOOTER ============ */
.site-footer{background:var(--bg-2);border-top:1px solid var(--border);padding-top:64px}
.footer-inner{display:flex;justify-content:space-between;align-items:flex-start;gap:40px;flex-wrap:wrap;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:14px;max-width:320px}
.footer-logo{width:48px;height:48px;object-fit:contain}
.footer-brand p{font-size:.86rem;color:var(--gray);line-height:1.5}
.footer-brand strong{color:var(--amber)}
.footer-nav{display:flex;gap:24px;flex-wrap:wrap}
.footer-nav a{font-size:.82rem;color:var(--gray);text-transform:uppercase;letter-spacing:.04em;font-weight:600}
.footer-nav a:hover{color:var(--amber)}
.footer-social{display:flex;gap:20px}
.footer-social a{font-size:.82rem;font-weight:700;color:var(--amber)}
.footer-bottom{
  border-top:1px solid var(--border);padding:24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;
  font-size:.76rem;color:var(--gray-dim);
}

/* ============ GLOW CARD (spotlight cursor effect, colores JH) ============ */
.glow-card{
  --mx:50%;--my:50%;
  position:relative;
  isolation:isolate;
}
.glow-card::before,
.glow-card::after{
  content:'';position:absolute;inset:0;pointer-events:none;opacity:0;
  transition:opacity .35s ease;
}
/* soft amber wash across the card, follows pointer */
.glow-card::before{
  z-index:0;
  background:radial-gradient(320px circle at var(--mx) var(--my),
    rgba(240,169,58,.16), rgba(245,132,58,.05) 45%, transparent 72%);
}
/* bright 1px glowing ring traced around the border, follows pointer */
.glow-card::after{
  z-index:5;
  padding:1px;border-radius:inherit;
  background:radial-gradient(220px circle at var(--mx) var(--my),
    rgba(240,169,58,.95), rgba(245,132,58,.35) 45%, transparent 70%);
  -webkit-mask:linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;
  mask:linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask-composite:exclude;
}
.glow-card:hover::before,
.glow-card:hover::after,
.glow-card:focus-within::before,
.glow-card:focus-within::after{opacity:1}
.glow-card > *{position:relative;z-index:1}

/* ============ RESPONSIVE ============ */
@media (max-width:980px){
  .services-grid{grid-template-columns:repeat(2,1fr)}
  .obras-grid{grid-template-columns:repeat(2,1fr)}
  .team-grid{grid-template-columns:repeat(2,1fr)}
  .why-grid{grid-template-columns:repeat(2,1fr);gap:28px 24px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .cta-inner{grid-template-columns:1fr;gap:40px}
}

@media (max-width:760px){
  .main-nav{
    position:fixed;top:0;right:0;height:100vh;width:min(78vw,320px);
    background:var(--bg-2);flex-direction:column;padding:110px 32px 32px;gap:24px;
    transform:translateX(100%);transition:transform .35s ease;box-shadow:-10px 0 40px rgba(0,0,0,.4);
    z-index:90;
  }
  .main-nav.open{transform:translateX(0)}
  .nav-toggle{display:flex}
  .header-cta .btn-label{display:none}
  .header-cta{padding:11px}
  .brand-sub{display:none}
  .brand-logo{width:36px;height:36px}
  .brand-name{font-size:.78rem}
  .hero{padding-top:130px}
  .hero-media .hero-video-desktop{display:none}
  .hero-media .hero-video-mobile{display:block;object-position:60% 20%}
  .hero-ctas .btn{flex:1 1 auto;justify-content:center}
  .section{padding:72px 0}
  .services-grid,.team-grid{grid-template-columns:1fr}
  .obras-grid{grid-template-columns:1fr}
  .why-grid{grid-template-columns:1fr}
  .counters-grid{grid-template-columns:1fr}
  .footer-inner{flex-direction:column}
}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .hero-media .hero-video{display:none !important}
  .hero-media{background:#0d0d0d url("assets/video-encabezado/hero-desktop-poster.jpg") center/cover no-repeat}
}