:root{
      --c1:#EEF6FF;
      --c2:#D9E9FF;
      --c3:#C4DCF7;
      --c4:#AFCFEF;
      --c5:#99C2E6;
      --c6:#5B8FB9;
      --c7:#436F98;
      --c8:#315B82;
      --c9:#244668;
      --c10:#162A45;
      --white:#ffffff;
      --black:#000000;

      --bg: var(--black);
      --bg-2: var(--c10);
      --panel: rgba(18,26,41,0.85);
      --panel-2: rgba(36,70,104,0.85);
      --border: rgba(68,113,154,0.45);
      --text: var(--c1);
      --muted: rgba(233,242,255,0.85);
      --accent-1: var(--c6);
      --accent-2: var(--c7);
      --ring: rgba(91,143,185,0.45);
      --shadow: 0 22px 60px rgba(0,0,0,0.45);
      --shadow-soft: 0 16px 40px rgba(0,0,0,0.3);
      --radius-xl:24px;
      --radius-lg:16px;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html,body{height:100%}
    body{
      font-family:'Manrope',system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
      background:var(--bg); color:var(--text); line-height:1.62; overflow-x:hidden; font-weight:300;
      scroll-snap-type:y proximity; scroll-behavior:smooth; overscroll-behavior-y:contain;
    }
    body.menu-open{overflow:hidden}
    p, li{color:rgba(233,242,255,0.9); font-weight:400;}
    .container{max-width:1180px;margin:0 auto;padding:0 7vw}

    /* header */
    header{position:sticky;top:0;z-index:40;backdrop-filter:saturate(180%) blur(12px);background:rgba(5,8,15,0.92);border-bottom:1px solid rgba(255,255,255,0.08);box-shadow:0 26px 70px rgba(2,6,17,0.55);transition:background .25s ease, box-shadow .25s ease}
    .nav{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .brand{display:flex;align-items:center;font-weight:700;letter-spacing:.02em;color:rgba(255,255,255,0.88);font-size:.92rem}
    .brand-link{display:inline-flex;align-items:center;gap:.8rem;color:inherit;text-decoration:none}
    .brand-link img{height:32px;filter:drop-shadow(0 10px 18px rgba(0,0,0,0.65))}
    .brand-link span{text-transform:lowercase;font-size:1.05rem;letter-spacing:.08em}
    .nav-toggle{display:none;position:relative;width:44px;height:38px;border-radius:12px;background:rgba(14,20,32,0.75);border:1px solid rgba(120,180,255,0.35);box-shadow:0 12px 28px rgba(0,0,0,0.35);cursor:pointer;transition:background .18s ease, transform .18s ease, box-shadow .18s ease;border:0;align-items:center;justify-content:center}
    .nav-toggle:hover{transform:translateY(-1px)}
    .nav-toggle:focus-visible{outline:3px solid var(--ring);outline-offset:3px}
    .nav-toggle span{position:absolute;left:11px;right:11px;height:2px;border-radius:999px;background:rgba(226,238,255,0.88);transition:transform .22s ease, opacity .22s ease}
    .nav-toggle span:nth-child(1){top:12px}
    .nav-toggle span:nth-child(2){top:18px}
    .nav-toggle span:nth-child(3){top:24px}
    .nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
    .nav-toggle.is-open span:nth-child(2){opacity:0}
    .nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
    nav{display:flex;align-items:center;gap:4px;z-index:80}
    nav a{position:relative;color:rgba(255,255,255,0.82);text-decoration:none;font-weight:500;font-size:.92rem;padding:10px 16px;border-radius:12px;transition:color .22s ease}
    nav a::after{content:"";position:absolute;left:16px;right:16px;bottom:10px;height:2px;border-radius:999px;background:linear-gradient(90deg,var(--accent-1),var(--accent-2));transform:scaleX(0);transform-origin:left center;transition:transform .22s ease}
    nav a:hover{color:var(--white)}
    nav a:hover::after{transform:scaleX(1)}
    nav a.btn{margin-left:12px;color:var(--white)}
    nav a.btn::after{display:none}
    nav a:focus{outline:3px solid var(--ring);outline-offset:2px}
    .lang-switch{position:fixed;top:18px;right:28px;display:flex;align-items:center;gap:10px;z-index:60}
    .lang-link{display:inline-flex;align-items:center;justify-content:center;width:42px;height:32px;padding:4px;border-radius:999px;background:rgba(9,15,28,0.75);box-shadow:0 12px 28px rgba(0,0,0,0.35);transition:transform .18s ease, box-shadow .18s ease, background .18s ease;border:0;cursor:pointer;font:inherit;color:inherit}
    .lang-link:hover{transform:translateY(-1px);box-shadow:0 16px 36px rgba(0,0,0,0.4);background:rgba(16,28,52,0.8)}
    .lang-link:focus-visible{outline:3px solid var(--ring);outline-offset:2px}
    .lang-link img{display:block;width:24px;height:16px;border-radius:3px}
    .lang-link--active{box-shadow:0 18px 40px rgba(0,0,0,0.45);background:rgba(18,32,60,0.82)}
    .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:44px;padding:0 28px;border-radius:14px;text-decoration:none;font-weight:500;font-size:.92rem;letter-spacing:.02em;border:1px solid rgba(255,255,255,0.16);background:rgba(20,26,40,0.5);color:rgba(255,255,255,0.88);box-shadow:0 18px 40px rgba(4,9,20,0.45);transition:transform .18s ease, box-shadow .18s ease, background .24s ease, color .2s ease}
    .btn:hover{transform:translateY(-2px);box-shadow:0 24px 55px rgba(6,12,26,0.55)}
    .btn-primary{background:linear-gradient(135deg, rgba(120,185,255,0.95), rgba(80,150,255,0.95));color:var(--white);border:1px solid rgba(170,205,255,0.45);box-shadow:0 22px 55px rgba(24,46,92,0.6), inset 0 1px 0 rgba(255,255,255,0.18)}
    .btn-primary:hover{background:linear-gradient(135deg, rgba(150,205,255,1), rgba(110,175,255,1))}
    .btn-secondary{background:rgba(33,46,70,0.64);color:rgba(233,242,255,0.9);border:1px solid rgba(98,132,198,0.45);box-shadow:0 18px 46px rgba(9,16,31,0.5), inset 0 1px 0 rgba(255,255,255,0.07)}
    .btn-secondary:hover{background:rgba(46,63,92,0.8);color:var(--white)}

    @media(max-width:960px){
      .nav{gap:18px}
      nav{gap:2px}
    }
    @media(max-width:780px){
      .nav{height:auto;flex-wrap:nowrap;align-items:center;gap:14px}
      .brand{flex:0 0 auto}
      .brand-link img{height:28px}
      .brand-link span{font-size:.96rem}
      .nav-toggle{display:inline-flex;margin-left:12px;order:3}
      nav{position:absolute;top:78px;left:0;right:0;background:rgba(5,8,15,0.96);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,0.08);box-shadow:0 26px 70px rgba(2,6,17,0.55);display:flex;flex-direction:column;gap:10px;padding:20px 24px;transform:translateY(-18px);opacity:0;pointer-events:none;transition:opacity .22s ease, transform .22s ease;z-index:70}
      nav.is-open{opacity:1;transform:translateY(0);pointer-events:auto}
      nav a{width:100%;text-align:left}
      nav a.btn{margin-left:0;justify-content:center}
      .lang-switch{position:relative;top:auto;right:auto;gap:8px;margin-left:auto;margin-top:0;order:2}
      .tech-wrapper{padding:0 6vw}
      .rails::before,.rails::after{display:none}
      .rail{mask-image:none}
      .track{gap:12px}
    }

    main section{padding:96px 0; scroll-snap-align:center; scroll-snap-stop:always; scroll-margin-top:80px}
    main section:not(#inicio){min-height:min(100vh,860px);display:flex;flex-direction:column;justify-content:center}
    main section:not(#inicio) > *{width:100%}
    .reveal{opacity:1; transform:none; transition:opacity .6s ease, transform .6s ease}
    body.reveal-ready .reveal{opacity:0; transform:translateY(18px) scale(.98)}
    body.reveal-ready .reveal.visible{opacity:1; transform:translateY(0) scale(1)}

    /* hero */
     #inicio{position:relative;background:var(--black);padding:0;margin-top:-78px;min-height:100vh;display:flex;align-items:center;justify-content:center;overflow:hidden;}
    .hero-bg{position:absolute;inset:0;z-index:0;display:flex;justify-content:center;align-items:center;background:var(--black);}
    .hero-bg video{display:block;width:100%;height:100%;object-fit:cover;object-position:center;opacity:.32;pointer-events:none;background:#000;transform:none;border-radius:0;}
    .hero-overlay{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:20px;text-align:center;padding:12px 40px;transform:translateY(-24px);max-width:min(90%,640px)}
    .hero-overlay img{width:520px;height:auto;filter:drop-shadow(0 12px 28px rgba(0,0,0,.55));margin-top:-70px;}
    .hero-overlay .slogan{font-size:1.2rem;font-weight:600;color:rgba(255,255,255,0.88);letter-spacing:.04em;text-transform:uppercase;max-width:540px;margin-top:0;}

    .intro{padding:120px 0;background:linear-gradient(180deg,rgba(0,0,0,0.6),rgba(0,0,0,0.85)), url('../img/hero-datos.jpg') center/cover no-repeat;}
    .intro-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:56px;align-items:center;}
    .eyebrow{display:inline-flex;gap:.5rem;padding:6px 10px;border-radius:999px;font-weight:700;font-size:.8rem;background:rgba(49,91,130,0.35);border:1px solid var(--border);color:var(--white);box-shadow:inset 0 0 0 1px rgba(255,255,255,.02),0 10px 30px rgba(0,0,0,0.25)}
    h1{font-size:clamp(2.1rem,4.5vw,3.4rem);letter-spacing:-.02em;line-height:1.1;margin-top:12px;font-weight:600}
    .grad{background:linear-gradient(90deg,var(--accent-1),var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent;text-shadow:0 6px 26px rgba(0,0,0,0.35)}
    .intro-content p{margin-top:14px;color:var(--muted)}
    .intro-content .cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
    .hero-card{position:relative;background:linear-gradient(140deg, rgba(68,113,154,0.25), rgba(36,70,104,0.85));border:1px solid var(--border);border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow);min-height:420px;aspect-ratio:4/5}
    .hero-card::after{content:"";display:none}
    .hero-card img{display:block;width:100%;height:100%;object-fit:cover;object-position:50% 38%;transform:scale(1.02);animation:slowZoom 18s ease-in-out infinite alternate}
    @keyframes slowZoom{from{transform:scale(1.02)}to{transform:scale(1.08)}}
    @media(max-width:768px){
      body{scroll-snap-type:none}
      main section{padding:72px 0}
      main section:not(#inicio){min-height:auto}
      header{background:rgba(5,8,15,0.92)}
      .hero-bg{background:linear-gradient(180deg,rgba(3,8,18,0.8),rgba(4,10,22,0.8)), url('../img/hero-datos.jpg') center/cover no-repeat}
      #inicio{margin-top:-72px;min-height:100vh}
      .hero-bg video{height:100%;object-position:center;opacity:.36;border-radius:0}
      .hero-overlay{transform:none;padding:28px 18px;gap:16px}
      .hero-overlay img{width:68vw;max-width:320px;margin-top:-20px}
      .intro{padding:96px 0}
      .intro-content{grid-template-columns:1fr;gap:40px}
      .hero-card{aspect-ratio:3/4;min-height:320px}
      .hero-card img{object-position:50% 32%;}
    }

    @media(max-width:540px){
      .container{padding:0 24px}
      main section{padding:56px 0}
      #inicio{margin-top:-68px;min-height:calc(100vh - 16px)}
      .hero-overlay img{width:62vw;max-width:240px}
      .intro{padding:72px 0}
      .services-grid{gap:16px}
      .service-card{padding:20px}
      .tech-section{padding:70px 0}
      .lang-switch{gap:8px}
      .whatsapp-fab{right:20px;bottom:20px;width:52px;height:52px}
    }

    /* trust badges */
    .trust{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:16px;margin-top:26px}
    .badge{background:rgba(36,70,104,0.7);border:1px dashed rgba(68,113,154,0.5);border-radius:12px;padding:10px 14px;color:var(--muted);text-align:center}

    /* services */
    .section-title{font-size:clamp(1.8rem,3.2vw,2.4rem);margin-bottom:10px;letter-spacing:-.01em;font-weight:600;color:rgba(255,255,255,0.92)}
    .section-intro{max-width:760px;color:var(--muted);margin-bottom:28px}
    .services-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:22px}
    .service-card{position:relative;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px;display:flex;flex-direction:column;gap:16px;box-shadow:0 16px 34px rgba(0,0,0,.32);transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease, background .2s ease;color:rgba(229,240,255,0.92);height:100%}
    .service-card:hover{transform:translateY(-4px);border-color:rgba(170,210,255,0.65);background:rgba(12,24,44,0.72);box-shadow:0 22px 50px rgba(0,0,0,0.45)}
    .service-card__media{position:relative;border-radius:18px;overflow:hidden;min-height:180px}
    .service-card__media img{width:100%;height:100%;object-fit:cover;display:block;filter:saturate(.95)}
    .service-tag{position:absolute;top:16px;left:16px;padding:6px 14px;border-radius:999px;background:rgba(12,24,44,0.85);border:1px solid rgba(120,180,255,0.45);font-size:.75rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:rgba(233,242,255,0.92)}
    .service-card__body{display:flex;flex-direction:column;gap:16px}
    .service-card__body p{color:rgba(224,238,255,0.82);font-size:.95rem}
    .service-icon{width:26px;height:26px;display:inline-block;vertical-align:middle;margin-right:8px;color:var(--accent-1);}
    .service-highlights{list-style:none;margin:0;padding:0;display:grid;gap:10px}
    .service-highlights li{display:flex;align-items:flex-start;gap:10px;color:rgba(224,238,255,0.85);font-size:.92rem}
    .service-highlights li::before{content:"•";color:var(--accent-1);font-weight:700;line-height:1}
    @media(min-width:768px){
      .services-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
      .service-card{padding:26px}
      .service-card__media{min-height:200px}
    }

    /* stats counters */
    .stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:18px;margin-top:10px}
    .stat{background:rgba(31,30,77,0.75);border:1px solid var(--border);border-radius:16px;padding:18px 20px;text-align:center}
    .stat .num{font-size:1.8rem;font-weight:800;letter-spacing:-.02em}
    .stat .lbl{color:rgba(233,242,255,0.85);font-size:.95rem;font-weight:400}

    /* TECNOLOGÍAS */
    .tech-section{position:relative;padding:90px 0;background:transparent;overflow:visible}
    .tech-section::before{
      content:"";
      position:absolute;inset:-45% 0 0 0;
      background:radial-gradient(ellipse at center, rgba(186,225,255,0.28) 0%, rgba(140,190,255,0.18) 24%, rgba(60,110,180,0.12) 48%, rgba(0,0,0,0) 72%);
      filter:blur(70px);
      opacity:.68;
      pointer-events:none;
      mix-blend-mode:screen;
      animation:techGlow 18s cubic-bezier(0.6,0.1,0.3,1) infinite alternate;
      animation-delay:-4s;
      will-change:transform,opacity;
    }
    .tech-section::after{
      content:"";
      position:absolute;top:-30%;bottom:-20%;left:-30%;right:-30%;
      background:linear-gradient(115deg, rgba(0,0,0,0) 32%, rgba(180,226,255,0.32) 48%, rgba(110,185,255,0.22) 56%, rgba(0,0,0,0) 72%);
      filter:blur(28px);
      opacity:.55;
      pointer-events:none;
      mix-blend-mode:screen;
      animation:techSweep 13s cubic-bezier(0.42,0.05,0.27,0.95) infinite;
      animation-direction:alternate;
      animation-delay:-6s;
      will-change:transform,opacity;
    }
    @keyframes techGlow{
      0%{transform:translate(-6%,-18%) scaleX(1.02) scaleY(0.82) rotate(-1deg);opacity:.48;}
      22%{transform:translate(3%,-8%) scaleX(1.2) scaleY(0.95) rotate(1.2deg);opacity:.78;}
      37%{transform:translate(-4%,-2%) scaleX(1.12) scaleY(1.02) rotate(-0.6deg);opacity:.66;}
      58%{transform:translate(5%,-12%) scaleX(1.26) scaleY(0.9) rotate(0.8deg);opacity:.82;}
      79%{transform:translate(-2%,-6%) scaleX(1.08) scaleY(0.97) rotate(-1.4deg);opacity:.61;}
      100%{transform:translate(4%,-16%) scaleX(1.18) scaleY(0.88) rotate(1deg);opacity:.52;}
    }
    @keyframes techSweep{
      0%{transform:translateX(-45%) translateY(-6%) rotate(-4deg) scaleX(1.05);opacity:.18;}
      19%{transform:translateX(-12%) translateY(-2%) rotate(-1deg) scaleX(1.12);opacity:.46;}
      36%{transform:translateX(16%) translateY(3%) rotate(1deg) scaleX(1.08);opacity:.62;}
      54%{transform:translateX(32%) translateY(-4%) rotate(-0.5deg) scaleX(1.2);opacity:.58;}
      71%{transform:translateX(8%) translateY(5%) rotate(2deg) scaleX(1.15);opacity:.42;}
      100%{transform:translateX(58%) translateY(-3%) rotate(-1deg) scaleX(1.25);opacity:.24;}
    }
    .tech-wrapper{width:100%;margin:0 auto;padding:0 4vw;display:flex;flex-direction:column;gap:28px}
    .tech-wrapper h3{text-align:center;font-size:clamp(1.8rem,3vw,2.4rem);color:rgba(255,255,255,0.92)}
    .tech-intro{max-width:720px;margin:0 auto;text-align:center;color:rgba(233,242,255,0.82)}
    .rails{position:relative;display:flex;flex-direction:column;gap:18px;isolation:isolate}
    .rails::before,.rails::after{
      content:""; position:absolute; inset:0; pointer-events:none; z-index:2;
      background:linear-gradient(90deg, rgba(0,0,0,0.9), rgba(0,0,0,0) 12%, rgba(0,0,0,0) 88%, rgba(0,0,0,0.9));
    }
    .rail{display:flex;gap:18px;overflow:hidden;mask-image:linear-gradient(90deg, transparent, rgba(0,0,0,1) 12%, rgba(0,0,0,1) 88%, transparent)}
    .track{display:flex;gap:14px;min-width:max-content;animation-duration:38s;animation-timing-function:linear;animation-iteration-count:infinite}
    .rail.top .track{animation-name:scrollRight}
    .rail.bottom .track{animation-name:scrollLeft}
    .integrations:hover .track{animation-play-state:paused}
    @keyframes scrollLeft{from{transform:translateX(0)}to{transform:translateX(-50%)}}
    @keyframes scrollRight{from{transform:translateX(-50%)}to{transform:translateX(0)}}
    .tile{
      min-width:96px;height:74px;border-radius:20px;background:rgba(68,113,154,0.18);border:1px solid rgba(98,132,198,0.38);
      display:flex;align-items:center;justify-content:center;padding:0 20px;box-shadow:0 16px 32px rgba(7,13,28,0.45);backdrop-filter:blur(6px);
    }
    .tile img{width:38px;height:38px;object-fit:contain;filter:drop-shadow(0 6px 10px rgba(0,0,0,0.45));}

    /* METODOLOGÍA (cards estilo features) */
    .features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
    .glass{
      position:relative; border-radius:20px; padding:22px; background:radial-gradient(120% 140% at 0% 0%, rgba(68,113,154,0.3), transparent 50%), var(--panel);
      border:1px solid var(--border); box-shadow:0 16px 36px rgba(0,0,0,.35);
    }
    .glass.metodologia .media{position:relative;border-radius:16px;overflow:hidden;margin-bottom:18px;box-shadow:0 18px 32px rgba(0,0,0,0.35)}
    .glass.metodologia .media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg, rgba(6,12,24,0) 0%, rgba(6,12,24,0.65) 100%);mix-blend-mode:screen;pointer-events:none}
    .glass.metodologia .media img{display:block;width:100%;height:200px;object-fit:cover}
    .glass h4{font-size:1.1rem;margin-bottom:8px}
    .glass p{color:var(--muted)}
    .glass .kpis{margin-top:10px; display:grid; gap:8px}
    .chip{display:inline-flex;align-items:center;gap:.5rem;border:1px solid var(--border);border-radius:999px;padding:6px 10px;font-size:.86rem;background:rgba(49,91,130,0.35)}
    .glass .cta{margin-top:14px}

    /* AUTOMATIZACIÓN IA */
    #ia{position:relative;overflow:visible;--cursor-x:50%;--cursor-y:50%}
    #ia::before{
      content:"";position:absolute;inset:-10% 0;background:url('../img/bg-circuit.svg') center/contain no-repeat;opacity:.22;filter:hue-rotate(12deg) saturate(0.85);z-index:0;
    }
    #ia .container{position:relative;z-index:2}
    .embed{
      position:relative;padding:46px 22px;text-align:center;background:transparent;box-shadow:none;border-radius:0;backdrop-filter:none;
    }
    .embed::after{content:none}
    .embed h3{font-size:clamp(1.8rem,3.2vw,2.6rem);margin-bottom:10px}
    .embed p{color:var(--muted);max-width:760px;margin:0 auto 16px}
    .ia-lead{max-width:740px;margin:0 auto 18px;color:rgba(229,240,255,0.92);text-align:center;font-size:1rem}
    .ia-summary{margin:0 auto 30px;max-width:720px;color:rgba(224,240,255,0.78);font-size:.94rem;text-align:center;line-height:1.7}
    .brand-pixel-stage{position:relative;width:100%;background:#080d16;overflow:hidden}
    .brand-pixel-stage canvas{display:block;width:100%;height:100%}
    .ia-node-row{position:relative;display:flex;flex-wrap:wrap;justify-content:space-between;gap:24px;margin:0 auto;padding:36px 28px;max-width:1120px;overflow:visible}
    .ia-node-row.has-progress .ia-line{opacity:.55}
    .ia-line{position:absolute;left:6%;right:6%;top:calc(50% + 26px);height:2px;background:linear-gradient(90deg,rgba(110,150,200,0.25),rgba(20,40,80,0.1));pointer-events:none;transition:opacity .3s ease;opacity:.25;z-index:0}
    .ia-line::after{content:"";position:absolute;inset:0;border-radius:999px;background:linear-gradient(90deg,transparent,rgba(160,220,255,0.95),transparent);background-size:200% 100%;animation:lineFlow 1.6s linear infinite;transform-origin:left center;transform:scaleX(var(--line-progress,0));opacity:clamp(0, var(--line-progress,0)*1.3, 0.9)}
    .ia-node{position:relative;flex:1 1 calc(33.333% - 24px);min-width:220px;max-width:320px;padding:58px 24px 24px;border-radius:22px;border:1px solid rgba(140,196,255,0.35);background:rgba(12,24,44,0.6);color:rgba(229,240,255,0.9);backdrop-filter:blur(10px);box-shadow:0 18px 42px rgba(6,18,36,0.35);text-align:left;transition:border-color .25s ease, box-shadow .25s ease;cursor:pointer;z-index:1}
    .ia-node h4{font-size:1.05rem;margin-bottom:8px;color:rgba(229,240,255,0.95)}
    .ia-node p{margin:0;font-size:.9rem;line-height:1.6;color:rgba(218,233,255,0.82)}
    .ia-node:hover,.ia-node:focus{box-shadow:0 26px 58px rgba(6,18,36,0.55);border-color:rgba(170,210,255,0.65);transform:none;outline:none}
    .ia-node:focus-visible{box-shadow:0 0 0 3px rgba(150,200,255,0.4),0 26px 58px rgba(6,18,36,0.55)}
    .ia-node.active{border-color:rgba(180,220,255,0.85);box-shadow:0 30px 60px rgba(8,24,48,0.55),0 0 26px rgba(150,210,255,0.55);animation:nodeGlow 2.6s ease-in-out infinite}
    .ia-avatar{position:absolute;top:-32px;left:50%;transform:translateX(-50%);width:84px;height:84px;border-radius:50%;overflow:hidden;border:3px solid rgba(180,220,255,0.7);box-shadow:0 18px 38px rgba(6,18,36,0.45);background:rgba(18,30,48,0.92);display:grid;place-items:center}
    .ia-avatar img{width:100%;height:100%;object-fit:cover;filter:saturate(.9)}
    .ia-node::before{content:"";position:absolute;left:50%;top:42px;width:2px;height:calc(50% - 38px);background:linear-gradient(180deg,rgba(150,205,255,0.45),rgba(30,50,90,0.1));transform:translateX(-50%);pointer-events:none;transition:background .3s ease}
    .ia-node.active::before{background:linear-gradient(180deg,rgba(170,225,255,0.9),rgba(20,40,80,0.2))}
    .ia-node::after{content:"";position:absolute;bottom:16px;right:20px;width:10px;height:10px;border-radius:50%;background:radial-gradient(circle, rgba(200,240,255,0.9) 0%, rgba(200,240,255,0) 65%);opacity:0;pointer-events:none;filter:blur(0.5px)}
    .ia-node.active::after{animation:sparkle 1.4s ease-in-out infinite .4s;opacity:1}
    @media(max-width:900px){.ia-node-row{padding:18px 12px}.ia-line{display:none}.ia-node{flex:1 1 100%;max-width:none;margin:32px 0 0}.ia-avatar{position:static;transform:none;margin:0 auto 12px}}

    .embed .center{position:relative;display:inline-grid;place-items:center;width:136px;height:136px;margin:12px auto 18px;border-radius:28px;background:transparent;border:none;box-shadow:none;font-weight:800;letter-spacing:.02em;}
    .embed .center img{width:124px;height:124px;object-fit:contain;filter:drop-shadow(0 0 10px rgba(180,230,255,0.45));}
    @keyframes circuitDrift{
      0%{transform:translateX(-4%) scale(1.02);}
      50%{transform:translateX(4%) scale(1.05);}
      100%{transform:translateX(-4%) scale(1.02);}
    }
    .circuit-anim{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:1;mix-blend-mode:screen}
    .circuit-anim .trace{fill:none;stroke-width:2.4;stroke-linecap:round;stroke-dasharray:140 1880;stroke-dashoffset:0;animation:circuitTrace 6.4s linear infinite;filter:drop-shadow(0 0 14px rgba(180,230,255,0.5));vector-effect:non-scaling-stroke;opacity:.82}
    .circuit-anim .trace.glow{stroke-width:7;stroke-linecap:round;stroke-dasharray:220 1880;animation:circuitTraceGlow 6.4s linear infinite;filter:blur(18px);opacity:.46;animation-delay:-1.2s}
    .circuit-highlight{position:absolute;inset:0;background:radial-gradient(circle at var(--cursor-x,50%) var(--cursor-y,50%), rgba(160,210,255,0.45) 0%, rgba(22,40,72,0.25) 30%, rgba(2,6,15,0) 60%);mix-blend-mode:screen;pointer-events:none;transition:opacity .3s ease;opacity:0;z-index:1.5}
    .circuit-highlight.active{opacity:.65}
    #ia.is-idle .circuit-highlight{opacity:0}
    @keyframes lineFlow{0%{background-position:0 0;}100%{background-position:-200% 0;}}
    @keyframes sparkPulse{0%,100%{transform:scale(1);}50%{transform:scale(1.35);}}
    @keyframes sparkle{0%,100%{transform:scale(1);opacity:.3;}50%{transform:scale(1.8);opacity:1;}}
    @keyframes nodeGlow{0%,100%{box-shadow:0 30px 60px rgba(8,24,48,0.45),0 0 18px rgba(150,210,255,0.45);}50%{box-shadow:0 34px 66px rgba(8,24,48,0.6),0 0 28px rgba(170,220,255,0.75);}}
    @keyframes circuitTrace{
      0%{stroke-dashoffset:0;opacity:0;}
      6%{opacity:1;}
      100%{stroke-dashoffset:-2020;opacity:0.85;}
    }
    @keyframes circuitTraceGlow{
      0%{stroke-dashoffset:0;opacity:.6;}
      55%{opacity:.85;}
      100%{stroke-dashoffset:-2020;opacity:.25;}
    }

    /* Contacto */
    .contact-form{margin-top:18px;display:grid;gap:16px}
    .contact-form .field-group{display:flex;flex-direction:column;gap:6px}
    .contact-form label{font-size:.85rem;font-weight:600;color:rgba(233,242,255,0.85)}
    .contact-form input,.contact-form textarea{background:rgba(12,20,34,0.65);border:1px solid rgba(108,148,196,0.4);border-radius:12px;padding:12px 14px;color:var(--white);font-size:.95rem;transition:border .2s ease, box-shadow .2s ease}
    .contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:rgba(122,186,255,0.75);box-shadow:0 0 0 3px rgba(76,142,255,0.25)}
    .contact-form textarea{resize:vertical;min-height:140px}
    .contact-form .field-row{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}
    .contact-form .checkbox{display:flex;align-items:flex-start;gap:8px;font-size:.82rem;color:rgba(233,242,255,0.75)}
    .contact-form .checkbox input{margin-top:4px;width:16px;height:16px;border-radius:4px}
    .form-notice{margin-bottom:16px;padding:12px 16px;border-radius:12px;font-size:.9rem;text-align:left;border:1px solid transparent}
    .form-notice.success{background:rgba(132,196,255,0.18);border-color:rgba(132,196,255,0.45);color:rgba(229,244,255,0.96)}
    .form-notice.error{background:rgba(30,52,92,0.32);border-color:rgba(94,138,190,0.45);color:rgba(218,232,255,0.92)}

    .whatsapp-fab{position:fixed;right:28px;bottom:28px;width:56px;height:56px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,#102235,#1f3f5d);color:#eaf4ff;box-shadow:0 18px 32px rgba(12,32,60,0.45);text-decoration:none;z-index:60;transition:transform .2s ease, box-shadow .2s ease}
    .whatsapp-fab:hover{transform:translateY(-2px);box-shadow:0 24px 42px rgba(14,38,70,0.55)}
    .whatsapp-fab img{width:28px;height:28px;filter:drop-shadow(0 0 6px rgba(170,210,255,0.45))}

    /* footer */
    footer{padding:44px 0 54px;color:rgba(208,224,255,0.68);border-top:1px solid rgba(54,55,133,0.4);background:rgba(5,10,24,0.65);box-shadow:0 -24px 60px rgba(2,6,18,0.55)}
    .footer-wrap{display:flex;flex-wrap:wrap;align-items:flex-start;justify-content:space-between;gap:32px;max-width:1100px;margin:0 auto 22px}
    .footer-brand{flex:1 1 320px;max-width:420px}
    .footer-brand p{margin:8px 0 0;font-size:.9rem;line-height:1.6;color:rgba(224,238,255,0.72)}
    .footer-logo{display:inline-block;font-weight:700;font-size:1.15rem;letter-spacing:.04em;text-transform:uppercase;color:rgba(236,247,255,0.95);text-decoration:none;padding-bottom:6px;border-bottom:1px solid rgba(120,180,255,0.4)}
    .footer-contact,.footer-social{flex:0 1 200px;display:flex;flex-direction:column;gap:10px}
    footer h4{margin:0;font-size:.95rem;color:rgba(236,247,255,0.9);letter-spacing:.02em}
    .footer-contact a,.footer-contact span{color:rgba(198,226,255,0.85);text-decoration:none;font-size:.9rem;transition:color .2s ease}
    .footer-contact a:hover{color:rgba(255,255,255,0.95)}
    .footer-social{flex-direction:row;align-items:center;gap:14px}
    .footer-social a{display:inline-flex;width:38px;height:38px;border-radius:50%;align-items:center;justify-content:center;border:1px solid rgba(120,180,255,0.3);background:rgba(12,24,44,0.75);box-shadow:0 12px 28px rgba(6,18,36,0.35);transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease}
    .footer-social a:hover{transform:translateY(-2px);border-color:rgba(170,205,255,0.6);box-shadow:0 18px 40px rgba(8,24,48,0.45)}
    .footer-social a img{width:18px;height:18px;display:block}
    .footer-contact span{font-size:.88rem;color:rgba(198,214,240,0.75)}
    .footer-meta{text-align:center;font-size:.82rem;color:rgba(172,192,224,0.55)}
    @media(max-width:720px){.footer-wrap{flex-direction:column;align-items:flex-start;gap:24px;margin-bottom:18px}.footer-contact,.footer-social{width:100%;flex-direction:row;flex-wrap:wrap;gap:12px}.footer-contact h4,.footer-social h4{width:100%;}}
    @media(max-width:960px){
      nav{gap:2px}
      .nav{gap:18px}
    }
    @media(max-width:768px){
      .nav{height:auto;flex-wrap:wrap;align-items:flex-start;gap:16px}
      .nav-toggle{display:inline-flex;margin-left:auto}
      nav{position:absolute;top:78px;left:0;right:0;background:rgba(5,8,15,0.96);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,0.08);box-shadow:0 26px 70px rgba(2,6,17,0.55);display:flex;flex-direction:column;gap:6px;padding:18px 24px;transform:translateY(-18px);opacity:0;pointer-events:none;transition:opacity .22s ease, transform .22s ease}
      nav.is-open{opacity:1;transform:translateY(0);pointer-events:auto}
      nav a{width:100%}
      nav a.btn{margin-left:0;justify-content:center}
      .lang-switch{position:relative;top:0;right:0;gap:10px;margin-left:auto}
    }
    @media(max-width:720px){.lang-switch{top:12px;right:16px;gap:6px}}
    @media(prefers-reduced-motion:reduce){.reveal{transition:none}.btn,.card{transition:none}.track{animation-duration:0s}}