:root{
  --blue:#087cff;
  --cyan:#00d5ff;
  --green:#65d400;
  --yellow:#ffd000;
  --dark:#020812;
  --dark2:#061827;
  --text:#f7faff;
  --muted:#9fb1c2;
  --line:rgba(112,196,255,.16);
  --glass:rgba(4,14,24,.72);
  --max:1280px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scrollbar-gutter:stable}
body{
  font-family:Inter,Segoe UI,Arial,Helvetica,sans-serif;
  background:var(--dark);
  color:var(--text);
  line-height:1.6;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto}
a{color:inherit}
button{font:inherit}
.container{width:min(var(--max),calc(100% - 48px));margin-inline:auto}

/* HEADER */
.header{
  position:fixed;top:0;left:0;width:100%;z-index:1000;
  background:rgba(1,7,14,.78);
  backdrop-filter:blur(20px) saturate(140%);
  -webkit-backdrop-filter:blur(20px) saturate(140%);
  border-bottom:1px solid rgba(112,196,255,.13);
  box-shadow:0 12px 40px rgba(0,0,0,.18);
}
.header-inner{
  width:min(var(--max),calc(100% - 40px));
  margin:auto;
  text-align:center;
}
.brand{display:inline-flex;align-items:center;justify-content:center;padding:8px 0 2px}
.logo{
  height:68px;width:auto;max-width:min(330px,70vw);
  display:block;object-fit:contain;
  filter:drop-shadow(0 5px 18px rgba(0,130,255,.12));
}
.nav{
  display:flex;justify-content:center;align-items:center;gap:3px;
  padding:5px 0 9px;list-style:none;flex-wrap:wrap;
}
.nav a{
  display:block;text-decoration:none;padding:8px 14px;border-radius:8px;
  color:#cbdbe8;font-size:12px;font-weight:800;letter-spacing:.55px;
  transition:transform .2s ease,background .2s ease,color .2s ease,box-shadow .2s ease;
}
.nav a:hover,.nav a.active{
  color:#fff;
  background:linear-gradient(135deg,rgba(8,124,255,.20),rgba(0,213,255,.07));
  box-shadow:inset 0 0 0 1px rgba(55,180,255,.16),0 5px 18px rgba(0,0,0,.16);
}
.nav a:hover{transform:translateY(-1px)}
.menu{
  display:none;margin:0 auto 8px;background:rgba(7,24,39,.9);color:#fff;
  border:1px solid var(--line);border-radius:9px;padding:8px 12px;
  font-size:20px;cursor:pointer;
}

/* HOME */
.hero{
  min-height:100svh;
  padding:178px 0 78px;
  display:flex;align-items:center;
  position:relative;overflow:hidden;
  background:
    radial-gradient(circle at 7% 35%,rgba(0,153,255,.18),transparent 29%),
    radial-gradient(circle at 88% 68%,rgba(101,212,0,.08),transparent 25%),
    linear-gradient(135deg,#01060d,#061a2a 52%,#02070e);
}
.hero:before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.32;
  background-image:
    linear-gradient(rgba(0,213,255,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(0,213,255,.06) 1px,transparent 1px);
  background-size:42px 42px;
  mask-image:linear-gradient(90deg,#000,transparent 75%);
}
.hero:after{
  content:"";position:absolute;width:520px;height:520px;right:-260px;top:22%;
  border:1px solid rgba(0,213,255,.12);border-radius:50%;
  box-shadow:0 0 0 70px rgba(0,213,255,.018),0 0 0 140px rgba(0,213,255,.012);
}
.hero-grid{
  display:grid;grid-template-columns:minmax(0,1.04fr) minmax(360px,.96fr);
  gap:clamp(35px,5vw,72px);align-items:center;position:relative;z-index:2;
}
.kicker{
  display:inline-flex;align-items:center;gap:9px;padding:8px 13px;
  border:1px solid rgba(0,183,255,.28);border-radius:30px;
  color:#7bd8ff;font-size:10px;font-weight:900;letter-spacing:1.55px;
  margin-bottom:19px;background:rgba(0,125,255,.035);
}
.dot{width:7px;height:7px;border-radius:50%;background:#6cda00;box-shadow:0 0 13px #6cda00}
h1{
  font-size:clamp(43px,5.4vw,76px);line-height:.98;letter-spacing:-2.8px;
  margin-bottom:22px;max-width:760px;
}
.gradient{
  background:linear-gradient(90deg,#fff 5%,#20baff 38%,#67d300 72%,#ffd000);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero p{font-size:clamp(16px,1.55vw,18px);color:var(--muted);max-width:650px;margin-bottom:30px}
.buttons{display:flex;gap:11px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;justify-content:center;min-height:47px;
  padding:12px 20px;border-radius:9px;text-decoration:none;font-weight:800;
  font-size:13px;border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.035);transition:.22s ease;
}
.btn.primary{
  background:linear-gradient(135deg,#087cff,#0758cb);
  border:0;box-shadow:0 10px 30px rgba(8,124,255,.22);
}
.btn:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(0,0,0,.22)}
.visual{
  border-radius:24px;padding:7px;
  background:linear-gradient(135deg,rgba(0,213,255,.62),rgba(101,212,0,.34),rgba(255,208,0,.38));
  box-shadow:0 35px 90px rgba(0,0,0,.55);
}
.visual-inner{
  min-height:440px;border-radius:18px;overflow:hidden;
  background:
    linear-gradient(135deg,rgba(1,13,23,.72),rgba(3,22,36,.44)),
    url('../img/synvoltix_logo.png') center/cover no-repeat;
  position:relative;
}
.visual-inner:before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 70% 25%,rgba(0,213,255,.16),transparent 32%);
}
.visual-inner:after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(0,7,15,.94));
}
.visual-text{position:absolute;z-index:2;left:28px;right:28px;bottom:25px}
.visual-text small,.section-head small{color:#4dc9ff;letter-spacing:2px;font-weight:900}
.visual-text h2{font-size:clamp(24px,2.5vw,32px);line-height:1.15}
.visual-text p{font-size:13px;color:#b9c9d6;margin:3px 0 0}

/* GENERIC SECTIONS */
section{padding:92px 0}
.section-head{text-align:center;max-width:720px;margin:0 auto 46px}
.section-head h2{font-size:clamp(32px,4vw,52px);line-height:1.08;margin:9px 0 12px}
.section-head p{color:var(--muted)}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:17px}
.card{
  padding:27px 21px;border:1px solid var(--line);border-radius:15px;
  background:linear-gradient(145deg,rgba(255,255,255,.045),rgba(255,255,255,.012));
  transition:.25s ease;
}
.card:hover{transform:translateY(-6px);border-color:rgba(0,183,255,.4);box-shadow:0 18px 45px rgba(0,0,0,.2)}
.icon{font-size:30px;margin-bottom:11px}
.card h3{font-size:18px;margin-bottom:8px}.card p{font-size:14px;color:var(--muted)}

.page-hero{
  padding:178px 0 66px;
  background:
    radial-gradient(circle at 85% 20%,rgba(0,183,255,.10),transparent 30%),
    linear-gradient(135deg,#020812,#071d2e);
  border-bottom:1px solid var(--line);
  position:relative;overflow:hidden;
}
.page-hero:after{
  content:"";position:absolute;right:-80px;bottom:-160px;width:360px;height:360px;
  border-radius:50%;border:1px solid rgba(0,213,255,.1);
  box-shadow:0 0 0 55px rgba(0,213,255,.025),0 0 0 110px rgba(0,213,255,.015);
}
.page-hero .container{position:relative;z-index:1}
.page-hero h1{font-size:clamp(40px,5.5vw,68px);margin:8px 0 12px}
.page-hero p{max-width:760px;color:var(--muted);font-size:17px}

.two-col{display:grid;grid-template-columns:1fr 1fr;gap:25px}
.box{
  padding:32px;border:1px solid var(--line);border-radius:17px;
  background:rgba(255,255,255,.025);box-shadow:0 12px 40px rgba(0,0,0,.08);
}
.box h2{font-size:32px;margin-bottom:15px}.box p{color:var(--muted);margin-bottom:12px}
.list{display:grid;gap:10px;margin-top:20px}.list div:before{content:"✓";color:#67d400;font-weight:900;margin-right:10px}

/* TRABAJOS */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.work{
  min-height:280px;border-radius:15px;overflow:hidden;border:1px solid var(--line);
  background:radial-gradient(circle,#143653,#07111c);
  display:flex;align-items:center;justify-content:center;text-align:center;padding:25px;
}

/* CONTACTO */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:45px;align-items:start}
.contact-card{
  padding:26px 30px;border:1px solid var(--line);border-radius:17px;
  background:rgba(1,8,16,.7);box-shadow:0 20px 50px rgba(0,0,0,.12);
}
.contact-item{display:flex;gap:15px;padding:16px 0;border-bottom:1px solid rgba(255,255,255,.07)}
.contact-item:last-child{border:0}.contact-icon{width:42px;height:42px;display:grid;place-items:center;border-radius:9px;background:linear-gradient(135deg,#087cff,#0a4fb2);font-size:19px;flex:none}
.contact-item b{display:block}.contact-item a,.contact-item span{font-size:14px;color:#b8c9d8;text-decoration:none}

/* COLABORADORES */
.collab-intro{max-width:760px;margin:0 auto 38px;text-align:center;color:var(--muted)}
.collab-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;
}
.collab-card{
  min-height:190px;padding:22px;border:1px solid var(--line);border-radius:18px;
  background:linear-gradient(145deg,rgba(255,255,255,.048),rgba(255,255,255,.012));
  display:flex;align-items:center;justify-content:center;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
  position:relative;overflow:hidden;
}
.collab-card:before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--blue),var(--cyan),var(--green),var(--yellow));
}
.collab-card:hover{
  transform:translateY(-6px);border-color:rgba(0,183,255,.42);
  box-shadow:0 22px 50px rgba(0,0,0,.26);
}
.collab-logo{
  width:min(230px,100%);height:112px;border-radius:13px;display:grid;place-items:center;
  background:#fff;padding:13px;overflow:hidden;box-shadow:0 7px 20px rgba(0,0,0,.12);
}
.collab-logo img{width:100%;height:100%;object-fit:contain;display:block}

/* FOOTER */
footer{
  padding:30px 20px;text-align:center;background:#01060c;color:#667c8f;font-size:12px;
  border-top:1px solid rgba(112,196,255,.08);
}
footer strong{color:#fff;letter-spacing:2px}

/* RESPONSIVE CHROME / TABLET */
@media(max-width:1100px){
  .nav a{padding:8px 10px;font-size:11px}
  .hero-grid{gap:38px}
  .cards{grid-template-columns:repeat(2,1fr)}
  .collab-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}

/* MÓVIL */
@media(max-width:820px){
  .container{width:min(100% - 32px,var(--max))}
  .header-inner{width:calc(100% - 24px)}
  .logo{height:58px}
  .nav{display:none;flex-direction:column;align-items:stretch;padding:8px 0 13px;gap:3px}
  .nav.open{display:flex}
  .nav a{text-align:center;padding:11px 12px;font-size:12px}
  .menu{display:block}
  .hero{padding:165px 0 65px;min-height:auto}
  .hero-grid,.two-col,.contact-grid{grid-template-columns:1fr}
  .hero-grid{gap:35px}
  h1{letter-spacing:-1.8px}
  .visual-inner{min-height:350px}
  section{padding:72px 0}
  .page-hero{padding:165px 0 58px}
  .gallery{grid-template-columns:1fr 1fr}
}

/* MÓVIL ESTRECHO */
@media(max-width:560px){
  .container{width:calc(100% - 26px)}
  .header-inner{width:calc(100% - 18px)}
  .logo{height:52px;max-width:78vw}
  .hero{padding-top:154px}
  .page-hero{padding-top:154px}
  .kicker{font-size:8.5px;letter-spacing:1.15px}
  h1{font-size:clamp(39px,12vw,58px)}
  .hero p{font-size:15px}
  .buttons{display:grid;grid-template-columns:1fr}
  .btn{width:100%}
  .visual-inner{min-height:310px}
  .visual-text{left:21px;right:21px;bottom:21px}
  .cards,.gallery,.collab-grid{grid-template-columns:1fr}
  .collab-card{min-height:170px}
  .collab-logo{height:100px}
  .box{padding:24px}
}

/* REDUCIR MOVIMIENTO SI EL USUARIO LO PREFIERE */
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important;animation:none!important}
}

/* Cabecera SYNVOLTIX: logotipo arriba y navegación activa en la segunda línea */
.two-line-header{
  display:flex;
  flex-direction:column;
  align-items:center;
}
.two-line-header .brand{
  line-height:0;
}
.two-line-header .nav{
  width:100%;
}
@media(max-width:820px){
  .two-line-header .nav{
    width:100%;
  }
}


/* ===== SYNVOLTIX secondary pages PRO ===== */
:root{
  --sv-blue:#0a78ff;--sv-cyan:#00d4ff;--sv-green:#67d100;--sv-yellow:#ffd000;
  --sv-dark:#02070d;--sv-panel:#07131f;--sv-text:#f7fbff;--sv-muted:#9fb2c2;
  --sv-line:rgba(105,195,255,.17);
}
body{background:#02070d}
.pro-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(1,6,12,.86);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(255,255,255,.06);box-shadow:0 12px 36px rgba(0,0,0,.18)
}
.pro-header-inner{
  width:min(1320px,94vw);min-height:88px;margin:auto;
  display:flex;align-items:center;justify-content:space-between;gap:24px
}
.pro-logo img{height:62px;width:auto;display:block;filter:drop-shadow(0 5px 16px rgba(0,0,0,.3))}
.pro-nav{display:flex;gap:3px;list-style:none;align-items:center;flex-wrap:wrap;justify-content:flex-end}
.pro-nav a{
  text-decoration:none;color:#d7e5ef;font-size:12px;font-weight:800;letter-spacing:.35px;
  padding:10px 12px;border-radius:9px;transition:.22s
}
.pro-nav a:hover,.pro-nav a.active{color:#fff;background:rgba(10,120,255,.13);box-shadow:inset 0 0 0 1px rgba(0,212,255,.14)}
.pro-menu{display:none;background:#071522;border:1px solid var(--sv-line);color:#fff;border-radius:9px;padding:8px 11px;font-size:20px}
.pro-page-hero{
  min-height:420px;padding:150px 0 70px;display:flex;align-items:center;position:relative;overflow:hidden;
  background:
    radial-gradient(circle at 82% 24%,rgba(0,212,255,.12),transparent 28%),
    radial-gradient(circle at 10% 80%,rgba(103,209,0,.07),transparent 24%),
    linear-gradient(135deg,#02070d,#06192a 58%,#02070d)
}
.pro-page-hero:before{
  content:"";position:absolute;inset:0;opacity:.18;
  background-image:linear-gradient(rgba(0,212,255,.10) 1px,transparent 1px),linear-gradient(90deg,rgba(0,212,255,.10) 1px,transparent 1px);
  background-size:54px 54px;mask-image:linear-gradient(90deg,#000,transparent 82%)
}
.pro-container{width:min(1220px,92vw);margin:auto;position:relative;z-index:2}
.pro-kicker{color:#69d5ff;font-size:11px;font-weight:900;letter-spacing:2px}
.pro-title{font-size:clamp(42px,5.5vw,72px);line-height:.98;letter-spacing:-2.7px;margin:10px 0 15px}
.pro-title span{background:linear-gradient(90deg,#fff,#2db9ff,#67d100,#ffd000);-webkit-background-clip:text;background-clip:text;color:transparent}
.pro-subtitle{max-width:760px;color:#aebdca;font-size:17px;line-height:1.7}
.pro-section{padding:88px 0}
.pro-section.alt{background:linear-gradient(180deg,#02070d,#06111c)}
.pro-section-head{text-align:center;max-width:760px;margin:0 auto 46px}
.pro-section-head small{color:#62d3ff;font-size:10px;letter-spacing:2px;font-weight:900}
.pro-section-head h2{font-size:clamp(32px,4vw,48px);line-height:1.08;margin:8px 0 11px}
.pro-section-head p{color:#99acbc}
.pro-grid-2{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.pro-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.pro-grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.pro-card{
  border:1px solid var(--sv-line);border-radius:18px;padding:28px;
  background:linear-gradient(145deg,rgba(255,255,255,.045),rgba(255,255,255,.012));
  box-shadow:0 18px 42px rgba(0,0,0,.12);transition:.25s;position:relative;overflow:hidden
}
.pro-card:before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--sv-blue),var(--sv-cyan),var(--sv-green),var(--sv-yellow));
  transform:scaleX(.22);transform-origin:left;transition:.3s
}
.pro-card:hover{transform:translateY(-6px);border-color:rgba(0,212,255,.35);box-shadow:0 24px 55px rgba(0,0,0,.24)}
.pro-card:hover:before{transform:scaleX(1)}
.pro-card h3{font-size:20px;margin:10px 0 8px}
.pro-card p{color:#9eb0bf;font-size:14px}
.pro-icon{font-size:34px}
.pro-badges{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}
.pro-badge{font-size:10px;font-weight:900;letter-spacing:.6px;color:#bce7ff;border:1px solid rgba(0,212,255,.18);border-radius:20px;padding:7px 10px;background:rgba(0,120,255,.05)}
.pro-cta{
  display:flex;align-items:center;justify-content:space-between;gap:20px;padding:28px 30px;
  border:1px solid var(--sv-line);border-radius:18px;background:linear-gradient(135deg,rgba(10,120,255,.10),rgba(103,209,0,.04))
}
.pro-cta h3{font-size:26px}.pro-cta p{color:#9eb0bf;margin-top:4px}
.pro-btn{
  display:inline-flex;align-items:center;justify-content:center;padding:13px 19px;border-radius:9px;
  text-decoration:none;font-size:12px;font-weight:900;background:linear-gradient(135deg,#0a78ff,#0752bd);color:#fff;white-space:nowrap
}
.pro-footer{padding:28px 20px;text-align:center;background:#01060c;color:#657b8f;font-size:12px;border-top:1px solid rgba(255,255,255,.06)}
.pro-footer strong{color:#fff;letter-spacing:2px}
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.reveal.visible{opacity:1;transform:none}

@media(max-width:1020px){
  .pro-header-inner{min-height:78px}.pro-logo img{height:55px}
  .pro-nav a{font-size:11px;padding:9px 8px}
  .pro-grid-4{grid-template-columns:repeat(2,1fr)}
  .pro-grid-3{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:800px){
  .pro-header-inner{min-height:72px}
  .pro-menu{display:block}
  .pro-nav{display:none;position:absolute;top:72px;left:12px;right:12px;flex-direction:column;align-items:stretch;background:rgba(1,7,14,.97);border:1px solid var(--sv-line);border-radius:12px;padding:10px}
  .pro-nav.open{display:flex}.pro-nav a{text-align:center;padding:11px}
  .pro-page-hero{padding-top:125px;min-height:360px}
  .pro-grid-2,.pro-grid-3,.pro-grid-4{grid-template-columns:1fr}
  .pro-cta{flex-direction:column;align-items:flex-start}
}


/* ===== SYNVOLTIX: secondary pages compact version ===== */
@media (min-width: 801px){
  .pro-header-inner{
    min-height:76px;
    width:min(1240px,92vw);
  }
  .pro-logo img{height:52px}
  .pro-nav a{
    font-size:11px;
    padding:8px 10px;
  }

  .pro-page-hero{
    min-height:315px;
    padding:118px 0 48px;
  }
  .pro-container{
    width:min(1120px,90vw);
  }
  .pro-title{
    font-size:clamp(38px,4.6vw,60px);
    margin:7px 0 11px;
  }
  .pro-subtitle{
    max-width:700px;
    font-size:15px;
    line-height:1.6;
  }

  .pro-section{padding:60px 0}
  .pro-section-head{margin-bottom:32px}
  .pro-section-head h2{font-size:clamp(28px,3.2vw,40px)}
  .pro-card{padding:22px}
  .pro-card h3{font-size:18px}
  .pro-icon{font-size:29px}

  .pro-grid-2{gap:18px}
  .pro-grid-3{gap:17px}
  .pro-grid-4{gap:15px}

  .pro-cta{padding:22px 25px}
  .pro-cta h3{font-size:22px}

  /* Servicios interactivos */
  .service-tabs{gap:10px;margin-bottom:20px}
  .service-tab{padding:13px 12px}
  .tab-icon{font-size:23px}
  .service-tab strong{font-size:12px}
  .service-detail{
    gap:22px;
    padding:23px;
  }
  .detail-copy h2{font-size:clamp(26px,2.8vw,36px)}
  .detail-copy p{font-size:14px}
  .detail-copy ul{margin-top:16px;gap:7px}
  .detail-copy li{font-size:13px}
  .detail-gallery{gap:10px}
  .detail-gallery img{height:205px}

  /* Trabajos realizados */
  .work-grid{gap:16px}
  .work-image{height:215px}
  .work-copy{padding:16px}
  .work-copy h3{font-size:16px}

  /* Colaboradores */
  .logo-grid{gap:17px}
  .logo-card{min-height:155px;padding:18px}
  .logo-box{height:95px}

  /* Contacto */
  .contact-layout{gap:22px}
  .contact-panel{padding:22px}
  .contact-note{padding:29px}
  .contact-note h2{font-size:clamp(28px,3.2vw,39px)}
  .contact-row{padding:12px 0}

  .pro-footer{padding:20px}
}

/* Slightly more compact secondary pages on tablets/mobile too */
@media (max-width:800px){
  .pro-page-hero{
    min-height:300px;
    padding-top:105px;
    padding-bottom:42px;
  }
  .pro-section{padding:52px 0}
  .pro-title{font-size:clamp(38px,10vw,52px)}
}