/* Diseño fijo en azul petróleo. Layout: topología de red. Hero partido (mensaje + diagrama de nodos), luego bandas de servicios, formación, nosotros y contacto sobre una retícula de 12 columnas */
:root{
  --bg:#071a21; --surface:#0d252e; --ink:#e3f1f4; --muted:#9db6bd; --line:#1d3b45;
  --deep:#3fa9c9; --teal:#4cc6cc; --teal-soft:#10323a; --on-deep:#04161c;
  --f-display:"Red Hat Display",system-ui,sans-serif;
  --f-body:"Red Hat Text",system-ui,sans-serif;
  --f-mono:"JetBrains Mono",ui-monospace,Menlo,monospace;
  --wrap:1120px;
  color-scheme:dark;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font:400 1rem/1.6 var(--f-body);-webkit-font-smoothing:antialiased}
.wrap{max-width:var(--wrap);margin:0 auto;padding-inline:clamp(16px,4vw,32px)}
h1,h2,h3{font-family:var(--f-display);line-height:1.1;margin:0;text-wrap:balance}
p{margin:0}
a{color:inherit}
:focus-visible{outline:3px solid var(--teal);outline-offset:3px;border-radius:4px}
.eyebrow{font:500 .75rem/1 var(--f-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--deep)}
.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.8rem 1.25rem;border-radius:999px;font:600 .95rem/1 var(--f-body);text-decoration:none;border:1.5px solid var(--deep);transition:background .2s,color .2s}
.btn-primary{background:var(--deep);color:var(--on-deep)}
.btn-primary:hover{background:var(--ink);border-color:var(--ink)}
.btn-ghost{color:var(--deep)}
.btn-ghost:hover{background:var(--teal-soft)}

/* header */
header{position:sticky;top:env(safe-area-inset-top,0px);z-index:10;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding-block:.7rem}
.brand{display:flex;align-items:center;gap:.6rem;text-decoration:none}
.brand img{width:38px;height:auto}
.brand b{font:900 1.3rem/1 var(--f-display);color:var(--deep);letter-spacing:-.01em}
.brand b span{color:var(--teal)}
nav ul{display:flex;gap:1.5rem;list-style:none;margin:0;padding:0}
nav a{text-decoration:none;font-weight:500;color:var(--muted)}
nav a:hover{color:var(--deep)}
@media (max-width:760px){nav ul{display:none}}

/* hero */
.hero{padding-block:clamp(2.5rem,7vw,5rem)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(2rem,5vw,4rem);align-items:center}
.hero-grid>*{min-width:0}
.hero h1{font-weight:900;font-size:clamp(2.2rem,5.4vw,3.9rem);letter-spacing:-.025em;margin-block:1rem 1.25rem}
.hero h1 em{font-style:normal;color:var(--teal)}
.hero .lead{font-size:1.15rem;color:var(--muted);max-width:34rem}
.hero-ctas{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:2rem}
.topo{width:100%;max-width:100%;aspect-ratio:1/0.9;display:block}
.topo .link{stroke:var(--line);stroke-width:2}
.topo .pulse{stroke:var(--teal);stroke-width:2.5;stroke-dasharray:6 200;animation:flow 3.2s linear infinite}
.topo .node{fill:var(--surface);stroke:var(--deep);stroke-width:2.5}
.topo .hub{fill:var(--surface);stroke:var(--deep);stroke-width:7}
.topo .hub-core{fill:var(--teal)}
.topo text{font:500 13px var(--f-mono);fill:var(--muted)}
.topo .lbl{font:600 15px var(--f-body);fill:var(--ink)}
@keyframes flow{from{stroke-dashoffset:206}to{stroke-dashoffset:0}}
@media (prefers-reduced-motion:reduce){.topo .pulse{animation:none;stroke-dasharray:none;opacity:.5}}
@media (max-width:820px){.hero-grid{grid-template-columns:1fr}.topo{max-width:440px;margin-inline:auto}}

/* sections */
section{padding-block:clamp(3rem,7vw,5.5rem)}
.sec-head{display:grid;gap:.9rem;max-width:42rem;margin-bottom:2.5rem}
.sec-head h2{font-weight:700;font-size:clamp(1.8rem,3.6vw,2.6rem);letter-spacing:-.02em}
.sec-head p{color:var(--muted);font-size:1.08rem}
.alt{background:var(--surface);border-block:1px solid var(--line)}

/* services */
.services{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.svc{background:var(--surface);padding:1.75rem;display:grid;gap:.8rem;align-content:start;min-width:0}
.alt .svc{background:var(--bg)}
.svc svg{width:34px;height:34px;stroke:var(--deep);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.svc h3{font-size:1.2rem;font-weight:700}
.svc p{color:var(--muted)}
.spec{font:400 .74rem/1.5 var(--f-mono);color:var(--deep);background:var(--teal-soft);padding:.35rem .6rem;border-radius:6px;justify-self:start}
.svc.wide{grid-column:1/-1;grid-template-columns:auto 1fr;gap:1.25rem;align-items:start}
.wide-body{display:grid;gap:.8rem;min-width:0;max-width:52rem}
@media (max-width:580px){.svc.wide{grid-template-columns:1fr}}
@media (max-width:900px){.services{grid-template-columns:repeat(2,1fr)}}
@media (max-width:580px){.services{grid-template-columns:1fr}}

/* training */
.train{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4rem);align-items:start}
.train>*{min-width:0}
.topics{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:1.5rem}
.topics span{border:1px solid var(--line);background:var(--surface);padding:.5rem .9rem;border-radius:999px;font-weight:500;font-size:.95rem}
.topics span.hot{border-color:var(--teal);background:var(--teal-soft);color:var(--ink)}
.note{border-left:3px solid var(--teal);padding:1.25rem 1.5rem;background:var(--surface);border-radius:0 12px 12px 0;display:grid;gap:.6rem}
.note h3{font-size:1.15rem}
.note p{color:var(--muted)}
@media (max-width:820px){.train{grid-template-columns:1fr}}

/* about */
.about{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(2rem,5vw,4rem)}
.about>*{min-width:0}
.about .body{display:grid;gap:1rem;color:var(--muted);font-size:1.05rem;max-width:36rem}
.about .body strong{color:var(--ink)}
.person{background:var(--deep);color:var(--on-deep);border-radius:16px;padding:2rem;display:grid;gap:1rem;align-content:start}
.person h3{font-size:1.4rem}
.person .role{font:500 .75rem/1.4 var(--f-mono);letter-spacing:.1em;text-transform:uppercase;opacity:.85}
.person ul{margin:0;padding:0;list-style:none;display:grid;gap:.55rem}
.person li{padding-left:1.1rem;position:relative}
.person li::before{content:"";position:absolute;left:0;top:.62em;width:6px;height:6px;border-radius:50%;background:var(--teal)}
.person li::before{background:var(--on-deep)}
.mv{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem;margin-top:2.5rem}
.mv div{border-top:2px solid var(--deep);padding-top:1rem;display:grid;gap:.5rem;min-width:0}
.mv p{color:var(--muted)}
@media (max-width:820px){.about,.mv{grid-template-columns:1fr}}

/* contact */
.contact{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4rem);align-items:start}
.contact>*{min-width:0}
.channels{display:grid;gap:.9rem}
.ch{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:1rem 1.25rem;border:1px solid var(--line);border-radius:12px;background:var(--surface)}
.ch div{min-width:0}
.ch small{display:block;font:500 .7rem/1.4 var(--f-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.ch b{font-weight:600;font-size:1.05rem;overflow-wrap:anywhere}
.copy{flex:none;border:1px solid var(--line);background:transparent;color:var(--deep);border-radius:8px;padding:.45rem .7rem;font:500 .8rem var(--f-body);cursor:pointer}
.copy:hover{background:var(--teal-soft)}
form{display:grid;gap:1rem;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:clamp(1.25rem,3vw,2rem)}
label{display:grid;gap:.35rem;font-weight:600;font-size:.92rem}
input,select,textarea{font:inherit;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:.7rem .85rem;width:100%}
textarea{min-height:110px;resize:vertical}
.ok{color:var(--deep);font-weight:600}
@media (max-width:820px){.contact{grid-template-columns:1fr}}


footer{border-top:1px solid var(--line);padding-block:2rem;color:var(--muted);font-size:.9rem}
.foot{display:flex;flex-wrap:wrap;gap:1rem 2rem;justify-content:space-between;align-items:center}
.foot .mono{font:400 .78rem var(--f-mono)}