/* =================================================================
   SOLUCIONES INFORMÁTICAS DEL ALTIPLANO
   Orden: tokens · base · capas de fondo · componentes · secciones · footer · media queries
   Paleta: negro azulado, grises plata y un solo acento azul acero.
   ================================================================= */

/* ── Tokens ── */
:root{
  --bg:#090b0f;
  --ink:#fff;
  --ink-80:rgba(255,255,255,.82);
  --ink-60:rgba(255,255,255,.7);
  --ink-40:rgba(255,255,255,.58);   /* mínimo legible (≥ 4.5:1 sobre --bg) */
  --ink-20:rgba(255,255,255,.2);
  --ink-10:rgba(255,255,255,.1);
  --ink-05:rgba(255,255,255,.05);
  --line:rgba(190,210,240,.14);
  --accent:#4da3ff;
  --accent-rgb:77,163,255;

  --sans:'Sora',system-ui,-apple-system,'Segoe UI',sans-serif;
  --mono:'JetBrains Mono',ui-monospace,monospace;

  --max-w:1200px;
  --gutter:clamp(20px,4vw,64px);
  --ease:cubic-bezier(.22,1,.36,1);
}

/* ── Base ── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{
  font-family:var(--sans);font-size:16px;line-height:1.6;color:var(--ink-60);
  background:var(--bg);color-scheme:dark;
  -webkit-font-smoothing:antialiased;scroll-behavior:smooth;scroll-padding-top:96px;
}
body{min-height:100vh;overflow-x:hidden}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit;background:none;border:none}
address{font-style:normal}
::selection{background:rgba(var(--accent-rgb),.3);color:#fff}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}

.skip{position:fixed;left:16px;top:-80px;z-index:300;padding:10px 18px;background:#fff;color:#000;border-radius:6px;font-weight:600;transition:top .2s}
.skip:focus{top:16px}

/* ── Capas de fondo ── */
#bg{position:fixed;inset:0;z-index:-3;width:100%;height:100%;background:linear-gradient(180deg,#0b1018,#070a0f)}
.veil{
  position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(ellipse at 50% 50%,transparent 45%,rgba(8,10,15,.75)),
    linear-gradient(180deg,rgba(9,11,15,.1),rgba(9,11,15,.45) 70%,rgba(9,11,15,.75));
}
.progress{position:fixed;top:0;left:0;z-index:200;width:100%;height:2px;background:var(--accent);box-shadow:0 0 12px rgba(var(--accent-rgb),.7);transform:scaleX(0);transform-origin:left}

/* ── Utilidades ── */
.glass{
  background:linear-gradient(145deg,rgba(190,210,240,.09),rgba(120,140,170,.025));
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.14),0 20px 50px -20px rgba(0,0,0,.6);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.spot{position:relative;overflow:hidden}
.spot::before{
  content:'';position:absolute;inset:0;pointer-events:none;opacity:0;
  background:radial-gradient(380px circle at var(--mx,50%) var(--my,50%),rgba(var(--accent-rgb),.16),transparent 60%);
  transition:opacity .35s;
}
.spot:hover::before{opacity:1}

/* Etiquetas en monoespaciada */
.label,.section__eyebrow,.stat__label,.card__tag,.hero__kicker,.unit__id,.nav__time{
  font-family:var(--mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;
}
.label{display:block;color:var(--ink-40);margin-bottom:14px}

.mark{position:relative;flex:0 0 auto;aspect-ratio:1;border-radius:50%;background:#fff;overflow:hidden}
.mark::before{
  content:'';position:absolute;inset:-18%;background:#000;
  clip-path:polygon(0 20%,100% 8%,100% 19%,0 31%,0 43%,100% 31%,100% 42%,0 54%,0 66%,100% 54%,100% 65%,0 77%);
}

.dot-live,.unit__led{border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent)}
.dot-live{display:inline-block;width:6px;height:6px;animation:pulse 2s ease-in-out infinite}
@keyframes pulse{50%{opacity:.45;transform:scale(.8)}}

@keyframes fade-up{from{opacity:0;transform:translateY(20px);filter:blur(4px)}to{opacity:1;transform:none;filter:none}}
.fade-up{opacity:0;animation:fade-up .7s cubic-bezier(.16,1,.3,1) forwards;animation-delay:var(--d,0s)}

/* ── Botones ── */
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 24px;border-radius:10px;font-size:14px;font-weight:600;cursor:pointer;transition:filter .2s,box-shadow .3s}
.btn:active{scale:.97}
.btn__arrow{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:50%;background:rgba(0,0,0,.14);font-size:12px;transition:transform .25s var(--ease)}
.btn:hover .btn__arrow{transform:translate(2px,-2px)}
.btn--primary{background:var(--accent);color:#04101f}
.btn--primary:hover{filter:brightness(1.1);box-shadow:0 0 28px rgba(var(--accent-rgb),.35)}
.btn--light{background:#fff;color:var(--bg)}
.btn--light:hover{filter:brightness(.9)}
.btn--wa{align-self:flex-start;margin-top:8px}
.btn--full{width:100%;justify-content:center}

/* ── Navegación ── */
.nav{position:fixed;inset:0 0 auto;z-index:100;padding:0 var(--gutter);transition:background .3s,border-color .3s}
.nav.is-stuck{background:rgba(9,11,15,.92);border-bottom:1px solid var(--ink-10)}
.nav__inner{max-width:var(--max-w);height:76px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:24px}
.nav__logo{display:flex;align-items:center;gap:12px;font-size:17px;font-weight:600;letter-spacing:-.03em;color:var(--ink);white-space:nowrap}
.nav__logo .mark{width:26px}
.nav__tic{margin-left:-8px;font-weight:300;color:var(--accent)}
.nav__links{display:flex;gap:28px}
.nav__links a{position:relative;padding-block:8px;font-size:12px;font-weight:500;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-60);transition:color .2s}
.nav__links a::after{content:'';position:absolute;left:0;bottom:2px;width:100%;height:1px;background:var(--ink);transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease)}
.nav__links a:hover{color:var(--ink)}
.nav__links a:hover::after{transform:scaleX(1)}
.nav__right{display:flex;align-items:center;gap:16px}
.nav__time{color:var(--ink-40);letter-spacing:.08em;font-variant-numeric:tabular-nums}
.nav__cta{padding:11px 22px;border:1px solid rgba(255,255,255,.28);border-radius:2px;font-size:12px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:#fff;transition:background .25s,color .25s,border-color .25s}
.nav__cta:hover{background:#fff;color:var(--bg);border-color:#fff}
.nav__burger{display:none;width:44px;height:44px;border:1px solid var(--ink-10);border-radius:50%;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer}
.nav__burger span{width:16px;height:1.5px;background:var(--ink);transition:transform .3s var(--ease)}
.nav__burger.active span:first-child{transform:rotate(45deg) translate(2.5px,2.5px)}
.nav__burger.active span:last-child{transform:rotate(-45deg) translate(2.5px,-2.5px)}

.mobile-menu{
  position:fixed;inset:0;z-index:99;display:flex;flex-direction:column;justify-content:center;
  padding:80px var(--gutter) 40px;background:rgba(9,11,15,.97);
  opacity:0;visibility:hidden;transition:opacity .4s var(--ease),visibility .4s;
}
.mobile-menu.open{opacity:1;visibility:visible}
.mobile-menu__links{display:flex;flex-direction:column;gap:20px}
.mobile-menu__links a{font-size:clamp(34px,9vw,56px);font-weight:300;line-height:1.1;letter-spacing:-.03em;color:var(--ink)}
.mobile-menu__footer{display:flex;flex-direction:column;gap:6px;margin-top:auto;padding-top:28px;border-top:1px solid var(--ink-10);font-size:14px;color:var(--ink-40)}
.mobile-menu__footer a{color:var(--ink-80)}

/* ── Hero ── */
.hero{position:relative;min-height:100vh;min-height:100dvh;display:flex;flex-direction:column;padding:130px var(--gutter) 24px}
.hero::before{content:'';position:absolute;inset:0;z-index:-1;pointer-events:none;background:linear-gradient(90deg,rgba(8,10,15,.78),transparent 75%)}
.hero__grid{max-width:var(--max-w);width:100%;margin:auto auto 0;display:grid;grid-template-columns:1.2fr .8fr;gap:clamp(32px,5vw,72px);align-items:end}
.hero__copy{max-width:44rem}
.hero__kicker{margin-bottom:22px;color:var(--ink-40)}
.hero__title{
  margin-bottom:10px;font-size:clamp(3rem,9vw,7.5rem);font-weight:700;line-height:1;letter-spacing:-.055em;text-transform:uppercase;
  color:var(--ink);
}
.hero__title .hl{color:var(--accent)}
@supports (-webkit-background-clip:text) or (background-clip:text){
  .hero__title{background:linear-gradient(180deg,#fff 10%,#9fb0c8);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
  .hero__title .hl{background:linear-gradient(180deg,#8fc5ff,#3a82e0);-webkit-background-clip:text;background-clip:text}
}
.hero__lead{margin-bottom:16px;font-size:clamp(1.1rem,2.4vw,1.75rem);font-weight:300;letter-spacing:-.02em;color:var(--ink-80)}
.hero__sub{max-width:36rem;margin-bottom:28px;font-size:clamp(.9rem,1.3vw,1.1rem);font-weight:300}
.hero__actions{display:flex;flex-wrap:wrap;gap:12px}
.hero__trust{margin-top:22px;font-size:12px;font-weight:300;color:var(--ink-40)}
.hero__stats{max-width:var(--max-w);width:100%;margin:40px auto 0;padding:22px clamp(20px,3vw,40px);border-radius:22px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.stat{display:flex;align-items:baseline;gap:10px}
.stat__number{font-size:clamp(20px,2.2vw,28px);font-weight:600;letter-spacing:-.02em;color:var(--ink);font-variant-numeric:tabular-nums}
.stat__label{color:var(--ink-40);letter-spacing:.14em}

/* Rack de bloques de vidrio */
.rack{display:flex;flex-direction:column;gap:10px;perspective:1200px}
.unit{display:grid;grid-template-columns:auto 1fr auto;gap:10px 14px;align-items:center;padding:18px 22px;border-radius:18px;animation:float 5s ease-in-out infinite;animation-delay:calc(var(--i)*-1.1s)}
.unit:nth-child(odd){margin-left:28px}
.unit__id{color:var(--ink-40);letter-spacing:.1em}
.unit__name{font-size:15px;font-weight:500;letter-spacing:-.01em;color:var(--ink)}
.unit__led{width:8px;height:8px;animation:blink 2.4s ease-in-out infinite;animation-delay:calc(var(--i)*.35s)}
.unit__bar{grid-column:1/-1;height:3px;border-radius:3px;background:var(--ink-10);overflow:hidden}
.unit__bar i{display:block;height:100%;width:var(--w);border-radius:inherit;background:linear-gradient(90deg,rgba(var(--accent-rgb),.3),var(--accent));transform-origin:left}
.unit:nth-child(1){--w:86%}.unit:nth-child(2){--w:64%}.unit:nth-child(3){--w:92%}.unit:nth-child(4){--w:58%}
@keyframes float{50%{transform:translateY(6px)}}
@keyframes blink{45%{opacity:.25}}

/* Marquee */
.marquee{position:relative;overflow:hidden;padding:18px 0;border-block:1px solid var(--ink-10);background:rgba(8,10,15,.55)}
.marquee::before,.marquee::after{content:'';position:absolute;top:0;bottom:0;z-index:1;width:12%;pointer-events:none}
.marquee::before{left:0;background:linear-gradient(90deg,var(--bg),transparent)}
.marquee::after{right:0;background:linear-gradient(270deg,var(--bg),transparent)}
.marquee__track{display:flex;gap:48px;width:max-content;animation:marquee 38s linear infinite;will-change:transform}
.marquee__track span{font-size:clamp(22px,3vw,34px);font-weight:300;letter-spacing:-.03em;color:var(--ink-40);white-space:nowrap}
.marquee__track span::after{content:'◆';margin-left:48px;font-size:10px;vertical-align:middle;color:var(--accent)}
@keyframes marquee{to{transform:translate3d(-50%,0,0)}}

/* ── Secciones ── */
.section{position:relative;isolation:isolate;padding:clamp(80px,12vw,160px) var(--gutter)}
.section + .section::before{content:'';position:absolute;top:0;left:var(--gutter);right:var(--gutter);height:1px;background:linear-gradient(90deg,transparent,rgba(190,210,240,.22) 30%,rgba(190,210,240,.22) 70%,transparent)}
.section__container{max-width:var(--max-w);margin:0 auto}
.section__header{margin-bottom:clamp(40px,7vw,80px)}
.section__eyebrow{display:block;margin-bottom:18px;color:var(--accent)}
.section__title{font-size:clamp(30px,5vw,60px);font-weight:600;line-height:1.04;letter-spacing:-.045em;color:var(--ink)}
.section__title--sm{font-size:clamp(26px,4vw,48px)}
.section__title em{font-style:normal;font-weight:300;letter-spacing:-.04em;color:var(--accent)}

/* Nosotros */
.about-grid,.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.about-grid{margin-bottom:16px}
.about-grid .glass,.metric{padding:clamp(24px,2.6vw,36px);border-radius:26px}
.about-grid p{font-size:15px;line-height:1.65}
.about-grid strong{font-weight:500;color:var(--ink)}
.metric{display:flex;flex-direction:column;gap:10px}
.metric__n{font-size:clamp(40px,6vw,68px);font-weight:300;line-height:.95;letter-spacing:-.04em;color:var(--ink);font-variant-numeric:tabular-nums}
.metric__n small{margin-left:4px;font-size:.42em;letter-spacing:0;color:var(--accent)}
.metric__l{font-size:14px;color:var(--ink-40)}

/* Servicios: tarjetas apiladas, completamente opacas */
.stack{display:flex;flex-direction:column;gap:28px;padding-bottom:20px}
.card{
  position:sticky;top:calc(110px + var(--n)*22px);
  display:grid;grid-template-columns:auto 1fr;grid-template-areas:"top title" "top desc" "top specs" "top link";column-gap:clamp(24px,5vw,72px);
  padding:clamp(28px,4vw,52px);border-radius:32px;transform-origin:center top;
  background:linear-gradient(145deg,#171c27,#0e1118);border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 -18px 40px -10px rgba(0,0,0,.65);
}
.card>*{position:relative;z-index:1}
.card::after{content:'';position:absolute;inset:0;z-index:2;pointer-events:none;background:#000;opacity:var(--dim,0)}   /* la tarjeta anterior se oscurece sin volverse transparente */
.card__top{grid-area:top;display:flex;flex-direction:column;gap:14px}
.card__index{font-size:clamp(56px,8vw,112px);font-weight:300;line-height:.85;letter-spacing:-.05em;color:var(--ink-20);font-variant-numeric:tabular-nums}
.card__tag{color:var(--accent)}
.card__title{grid-area:title;margin-bottom:14px;font-size:clamp(26px,3.4vw,44px);font-weight:400;line-height:1.05;letter-spacing:-.03em;color:var(--ink)}
.card__desc{grid-area:desc;max-width:40ch;margin-bottom:24px;font-size:16px}
.card__specs{grid-area:specs;display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px}
.card__specs span{padding:6px 13px;border:1px solid var(--ink-10);border-radius:999px;background:var(--ink-05);font-family:var(--mono);font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-60)}
.card__link{grid-area:link;justify-self:start;display:inline-flex;align-items:center;gap:8px;padding-block:10px;font-size:14px;font-weight:500;color:var(--ink);transition:color .2s,gap .25s var(--ease)}
.card__link:hover{gap:14px;color:var(--accent)}

/* Contacto */
.contact-layout{display:grid;grid-template-columns:1fr 1.1fr;gap:clamp(32px,6vw,80px);align-items:start}
.contact-info{display:flex;flex-direction:column}
.contact-info__desc{max-width:26rem;margin:22px 0 36px;font-size:16px}
.contact-details{display:flex;flex-direction:column;gap:22px;margin-bottom:30px}
.contact-details .label{margin-bottom:6px}
.contact-details p,.contact-details address{font-size:15px;color:var(--ink-80)}
.contact-details a{transition:color .2s}
.contact-details a:hover{color:var(--accent)}

.contact-form{display:flex;flex-direction:column;gap:16px;padding:clamp(24px,3vw,40px);border-radius:30px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-field{display:flex;flex-direction:column;gap:6px}
.form-field label{font-size:13px;font-weight:500;color:var(--ink-60)}
.form-field input,.form-field select,.form-field textarea{
  padding:13px 16px;border:1px solid var(--ink-10);border-radius:14px;background:rgba(255,255,255,.04);font-size:15px;color:var(--ink);
  outline:2px solid transparent;transition:border-color .2s,background .2s,box-shadow .2s;
}
.form-field ::placeholder{color:var(--ink-40)}
.form-field select option{background:#121620;color:#fff}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{border-color:rgba(var(--accent-rgb),.6);background:rgba(255,255,255,.07);box-shadow:0 0 0 4px rgba(var(--accent-rgb),.12)}
.form-field [aria-invalid="true"]{border-color:rgba(248,113,113,.7)}
.form-error{min-height:16px;font-size:12px;color:#f87171}
.form-status{padding:16px;border-radius:14px;font-size:14px;line-height:1.5}
.form-status:empty{display:none}
.form-status.error{background:rgba(239,68,68,.1);border:1px solid rgba(239,68,68,.25);color:#fca5a5}
.form-status.success{background:rgba(var(--accent-rgb),.1);border:1px solid rgba(var(--accent-rgb),.25);color:#cfe5ff}
.form-status .btn{margin-top:10px}

/* ── Footer ── */
.site-footer{position:relative;z-index:100;overflow:hidden;background:#05070a;color:#fff;border-top:1px solid var(--line)}
.footer-dots{position:relative;height:120px;overflow:hidden}
.footer-dots__line{
  position:absolute;left:0;top:50%;width:200%;height:70px;opacity:.75;transform:translateY(-50%);
  background-image:
    radial-gradient(circle,rgb(120 180 255/.65) 1.5px,transparent 2px),
    radial-gradient(circle,rgb(255 255 255/.35) 1px,transparent 1.5px),
    radial-gradient(circle,rgb(255 255 255/.45) 1.2px,transparent 1.8px);
  background-position:0 8px,24px 22px,48px 14px;
  background-size:72px 38px,110px 44px,160px 52px;
  animation:footer-dots 18s linear infinite;will-change:transform;
}
@keyframes footer-dots{to{transform:translate3d(-50%,-50%,0)}}
.site-footer__inner{width:min(100% - 96px,1820px);margin:0 auto;padding:clamp(34px,4vw,66px) 0 clamp(18px,2vw,34px)}
.site-footer__top{display:grid;grid-template-columns:minmax(320px,1.25fr) repeat(3,minmax(150px,.42fr));gap:clamp(28px,4vw,76px);min-height:clamp(220px,24vw,330px)}
.site-footer__lead{max-width:680px;font-size:clamp(34px,3.5vw,62px);font-weight:200;line-height:1.06;letter-spacing:-.03em;color:#fff}
.site-footer__nav{display:flex;flex-direction:column;align-items:flex-start;gap:clamp(8px,1vw,14px)}
.site-footer__nav a{padding-block:6px;font-size:16px;font-weight:600;line-height:1.1;color:rgb(255 255 255/.88);transition:color .18s,transform .18s}
.site-footer__nav a:hover{color:var(--accent);transform:translateX(3px)}
.site-footer__brand{display:flex;align-items:center;width:100%;margin-top:clamp(18px,3vw,46px);color:#fff}
.site-footer__brand .mark{flex-basis:clamp(58px,6.1vw,118px);margin-right:clamp(14px,1.6vw,28px)}
.site-footer__word{flex:1 1 auto;min-width:0;font-size:clamp(46px,11.1vw,214px);font-weight:700;line-height:.78;letter-spacing:-.065em;white-space:nowrap}
.site-footer__legal{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:clamp(14px,1.4vw,24px);font-size:12px;line-height:1.35;color:rgb(255 255 255/.6)}

/* ── Responsive ── */
@media(max-width:1024px){
  .nav__links,.nav__time,.nav__cta{display:none}
  .nav__burger{display:flex}
  .hero__grid{grid-template-columns:1fr}
  .rack{display:none}
  .about-grid,.metrics,.contact-layout{grid-template-columns:1fr}
}
@media(max-width:980px){
  .site-footer__inner{width:min(100% - 48px,1820px)}
  .site-footer__top{grid-template-columns:1fr 1fr}
  .site-footer__lead{grid-column:1/-1}
}
@media(max-width:700px){
  .hero{padding-top:110px}
  .hero__stats{flex-direction:column;align-items:flex-start;gap:12px}
  .form-row{grid-template-columns:1fr}
}
/* Tarjetas sin apilar en pantallas pequeñas o bajas */
@media(max-width:700px),(max-height:700px){
  .card{position:relative;top:0;grid-template-columns:1fr;grid-template-areas:"top" "title" "desc" "specs" "link"}
  .card__top{flex-direction:row;align-items:baseline;justify-content:space-between;margin-bottom:12px}
  .card__index{font-size:56px}
}
@media(max-width:560px){
  .site-footer__inner{width:min(100% - 32px,1820px)}
  .site-footer__top{grid-template-columns:1fr;min-height:auto}
  .site-footer__nav a{font-size:15px}
  .site-footer__brand .mark{flex-basis:clamp(38px,12vw,58px)}
  .site-footer__word{font-size:clamp(34px,15vw,84px)}
}

/* ── Accesibilidad ── */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .fade-up{opacity:1}
}
@media(forced-colors:active){
  .hero__title,.hero__title .hl{background:none;-webkit-text-fill-color:currentColor}
}