/* ============ TEMA OSCURO (default) ============ */
:root{
  --bg:#0E1013;
  --bg-raise:#14171C;
  --line:#242A32;
  --ink:#E8EAED;
  --ink-dim:#9AA3AE;
  --amber:#5B9DFF;
  --amber-soft:rgba(91,157,255,.14);
  --steel:#E8A85C;
  --ok:#5CBF7A;
  --btn-ink:#14171C;
  --header-bg:rgba(14,16,19,.82);
  --grid:transparent;
  --node-fill:#191D23;
  --node-stroke:#2C333D;
  --node-label:#E8EAED;
  --node-sub:#9AA3AE;
  --edge:#2C333D;
  --pkt-glow:rgba(91,157,255,.8);
  --pkt-glow2:rgba(232,168,92,.8);
  --topo-shadow:none;
  --led-glow:0 0 10px var(--amber);
  --svc-bg:var(--bg);
  --svc-hover:var(--bg-raise);
  --btn-glow:rgba(91,157,255,.35);
  --mono:'IBM Plex Mono',ui-monospace,monospace;
  --sans:'IBM Plex Sans',system-ui,sans-serif;
  --disp:'Martian Mono',ui-monospace,monospace;
  --max:1120px;
}
/* ============ TEMA CLARO (blueprint/cobre) ============ */
html[data-theme="light"]{
  --bg:#F3F5F7;
  --bg-raise:#FFFFFF;
  --line:#D9DFE5;
  --ink:#1B2733;
  --ink-dim:#5C6B7A;
  --amber:#1D4ED8;
  --amber-soft:rgba(29,78,216,.10);
  --steel:#B87A2E;
  --ok:#2E8B57;
  --btn-ink:#FFFFFF;
  --header-bg:rgba(243,245,247,.85);
  --grid:var(--line);
  --node-fill:#FFFFFF;
  --node-stroke:#C4CDD6;
  --node-label:#1B2733;
  --node-sub:#5C6B7A;
  --edge:#B8C2CC;
  --pkt-glow:rgba(29,78,216,.6);
  --pkt-glow2:rgba(184,122,46,.6);
  --topo-shadow:0 8px 30px rgba(27,39,51,.08);
  --led-glow:0 0 8px rgba(29,78,216,.5);
  --svc-bg:var(--bg-raise);
  --svc-hover:#FAF7F3;
  --btn-glow:rgba(29,78,216,.3);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:48px 48px;
  background-attachment:fixed;
  color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased;
  transition:background-color .3s,color .3s;
}
::selection{background:var(--amber);color:var(--btn-ink)}
a{color:inherit}
img{max-width:100%}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}

/* ---------- Nav ---------- */
header{position:sticky;top:0;z-index:60;background:var(--header-bg);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px;gap:12px}
.logo{font-family:var(--disp);font-weight:800;font-size:19px;letter-spacing:-.01em;text-decoration:none;display:flex;align-items:center;gap:10px}
.logo .dot{width:8px;height:8px;border-radius:50%;background:var(--amber);box-shadow:var(--led-glow);animation:led 2.4s ease-in-out infinite}
@keyframes led{0%,100%{opacity:1}50%{opacity:.35}}
.nav-links{display:flex;gap:32px;list-style:none}
.nav-links a{font-family:var(--mono);font-size:13px;color:var(--ink-dim);text-decoration:none;letter-spacing:.04em;transition:color .2s}
.nav-links a:hover,.nav-links a:focus-visible{color:var(--amber)}
.nav-right{display:flex;align-items:center;gap:10px}
.nav-cta{font-family:var(--mono);font-size:13px;color:var(--btn-ink);background:var(--amber);padding:9px 18px;border-radius:6px;text-decoration:none;font-weight:500;transition:transform .15s,box-shadow .2s;white-space:nowrap}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 4px 18px var(--btn-glow)}
.icon-btn{
  background:none;border:1px solid var(--line);border-radius:6px;
  height:40px;cursor:pointer;color:var(--ink);
  font-size:16px;line-height:1;display:flex;align-items:center;justify-content:center;
  transition:border-color .2s,color .2s;flex-shrink:0;
  font-family:var(--mono);gap:6px;padding:0 10px;
}
.icon-btn:hover{border-color:var(--amber);color:var(--amber)}
.lang-btn .code{font-size:11.5px;letter-spacing:.05em}
.burger{display:none;background:none;border:1px solid var(--line);border-radius:6px;width:40px;height:40px;color:var(--ink);font-size:17px;cursor:pointer;flex-shrink:0}
@media(max-width:900px){
  .nav-links,.nav-cta{display:none}
  .burger{display:block}
  .nav-links.open{display:flex;position:absolute;top:64px;left:0;right:0;background:var(--bg);flex-direction:column;gap:0;border-bottom:1px solid var(--line)}
  .nav-links.open li{border-top:1px solid var(--line)}
  .nav-links.open a{display:block;padding:16px 24px;font-size:15px}
}

/* ---------- Hero ---------- */
.hero{padding:72px 0 40px;position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.eyebrow{font-family:var(--mono);font-size:13px;color:var(--amber);letter-spacing:.14em;text-transform:uppercase;display:flex;align-items:center;gap:10px;margin-bottom:22px}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--amber)}
h1{font-family:var(--disp);font-weight:800;font-size:clamp(26px,4.4vw,48px);line-height:1.16;letter-spacing:-.02em}
.hero-sub{margin-top:20px;font-size:clamp(17px,2vw,20px);color:var(--ink-dim);max-width:46ch}
.hero-sub em{color:var(--ink);font-style:italic}
.hero-actions{margin-top:34px;display:flex;gap:14px;flex-wrap:wrap}
.btn{font-family:var(--mono);font-size:14px;padding:13px 24px;border-radius:8px;text-decoration:none;font-weight:500;transition:transform .15s,box-shadow .2s,background .2s;display:inline-block}
.btn-solid{background:var(--amber);color:var(--btn-ink)}
.btn-solid:hover{transform:translateY(-2px);box-shadow:0 6px 22px var(--btn-glow)}
.btn-ghost{border:1px solid var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--steel);color:var(--steel)}
.hero-meta{margin-top:38px;display:flex;gap:26px;flex-wrap:wrap;font-family:var(--mono);font-size:12.5px;color:var(--ink-dim)}
.hero-meta span b{color:var(--ok);font-weight:500}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr}.hero{padding-top:48px}}

/* ---------- Topology (signature) ---------- */
.topo{background:var(--bg-raise);border:1px solid var(--line);border-radius:14px;padding:18px 14px 10px;position:relative;box-shadow:var(--topo-shadow);transition:background-color .3s}
.topo-head{display:flex;justify-content:space-between;align-items:center;font-family:var(--mono);font-size:11.5px;color:var(--ink-dim);padding:0 8px 12px;border-bottom:1px solid var(--line)}
.topo-head .live{color:var(--ok);display:flex;align-items:center;gap:6px}
.topo-head .live::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--ok);animation:led 1.6s infinite}
.topo svg{width:100%;height:auto;display:block}
.node-box{fill:var(--node-fill);stroke:var(--node-stroke);stroke-width:1;transition:fill .3s}
.node-label{font-family:'IBM Plex Mono',monospace;font-size:10.5px;fill:var(--node-label)}
.node-sub{font-family:'IBM Plex Mono',monospace;font-size:8.5px;fill:var(--node-sub)}
.edge{stroke:var(--edge);stroke-width:1.4;fill:none}
.pkt{fill:var(--amber);filter:drop-shadow(0 0 4px var(--pkt-glow))}
.pkt.blue{fill:var(--steel);filter:drop-shadow(0 0 4px var(--pkt-glow2))}
.term{font-family:var(--mono);font-size:12px;color:var(--ink-dim);padding:12px 8px 6px;min-height:44px}
.term .ok{color:var(--ok)}
.term .cursor{display:inline-block;width:7px;height:13px;background:var(--amber);vertical-align:-2px;animation:led 1s steps(2) infinite}

/* ---------- Sections ---------- */
section{padding:88px 0;border-top:1px solid var(--line);background:var(--bg);transition:background-color .3s}
.sec-head{margin-bottom:52px;max-width:640px}
.sec-head h2{font-family:var(--disp);font-weight:700;font-size:clamp(21px,3vw,30px);line-height:1.2;margin-top:14px;letter-spacing:-.01em}
.sec-head p{margin-top:14px;color:var(--ink-dim)}

/* Servicios */
.svc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.svc{background:var(--svc-bg);padding:34px 30px;transition:background .25s}
.svc:hover{background:var(--svc-hover)}
.svc .tag{font-family:var(--mono);font-size:11.5px;color:var(--steel);letter-spacing:.1em}
.svc h3{font-family:var(--disp);font-weight:700;font-size:17px;margin:10px 0 12px;letter-spacing:-.01em}
.svc p{color:var(--ink-dim);font-size:15.5px}
.svc ul{margin-top:14px;list-style:none}
.svc li{font-family:var(--mono);font-size:12.5px;color:var(--ink-dim);padding:5px 0 5px 18px;position:relative}
.svc li::before{content:"›";position:absolute;left:0;color:var(--amber)}
@media(max-width:760px){.svc-grid{grid-template-columns:1fr}}

/* Método */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.step{border-top:2px solid var(--line);padding-top:20px;position:relative;transition:border-color .3s}
.step:hover{border-top-color:var(--amber)}
.step .n{font-family:var(--mono);font-size:12px;color:var(--amber)}
.step h3{font-family:var(--disp);font-weight:700;font-size:15.5px;margin:8px 0 8px;letter-spacing:-.01em}
.step p{font-size:14.5px;color:var(--ink-dim)}
@media(max-width:900px){.steps{grid-template-columns:repeat(2,1fr)}}
@media(max-width:540px){.steps{grid-template-columns:1fr}}

/* Stack */
.stack-row{display:flex;flex-wrap:wrap;gap:10px}
.chip{font-family:var(--mono);font-size:13px;color:var(--ink-dim);border:1px solid var(--line);border-radius:100px;padding:8px 18px;transition:color .2s,border-color .2s;cursor:default}
.chip:hover{color:var(--amber);border-color:var(--amber)}

/* Sobre */
.about-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:start}
.about-grid p+p{margin-top:16px}
.about-grid p{color:var(--ink-dim)}
.about-grid strong{color:var(--ink);font-weight:600}
.fact-card{background:var(--bg-raise);border:1px solid var(--line);border-radius:14px;padding:28px;box-shadow:var(--topo-shadow);transition:background-color .3s}
.fact{display:flex;justify-content:space-between;gap:16px;padding:13px 0;border-bottom:1px solid var(--line);font-size:14.5px}
.fact:last-child{border-bottom:0}
.fact .k{font-family:var(--mono);font-size:12.5px;color:var(--ink-dim)}
.fact .v{text-align:right;color:var(--ink)}
@media(max-width:860px){.about-grid{grid-template-columns:1fr}}

/* Contacto */
.contact{background:var(--bg-raise);border:1px solid var(--line);border-radius:18px;padding:56px 48px;display:grid;grid-template-columns:1.2fr .8fr;gap:44px;align-items:center;box-shadow:var(--topo-shadow);transition:background-color .3s}
.contact h2{font-family:var(--disp);font-weight:800;font-size:clamp(20px,2.8vw,28px);line-height:1.2;letter-spacing:-.01em}
.contact p{margin-top:14px;color:var(--ink-dim)}
.contact-links{display:flex;flex-direction:column;gap:14px}
.clink{display:flex;align-items:center;gap:14px;border:1px solid var(--line);border-radius:10px;padding:15px 18px;text-decoration:none;transition:border-color .2s,transform .15s}
.clink:hover{border-color:var(--amber);transform:translateX(4px)}
.clink .ico{width:38px;height:38px;border-radius:8px;background:var(--amber-soft);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.clink .ico svg{width:19px;height:19px;fill:var(--amber)}
.clink .t{font-family:var(--mono);font-size:11px;color:var(--ink-dim);display:block}
.clink .d{font-size:15px;font-weight:500}
@media(max-width:860px){.contact{grid-template-columns:1fr;padding:40px 28px}}

/* Footer */
footer{border-top:1px solid var(--line);padding:34px 0;background:var(--bg);transition:background-color .3s}
.foot{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-family:var(--mono);font-size:12.5px;color:var(--ink-dim)}
.foot a{color:var(--ink-dim);text-decoration:none}
.foot a:hover{color:var(--amber)}

/* WhatsApp bubble */
.wa{position:fixed;right:22px;bottom:22px;z-index:80;width:58px;height:58px;border-radius:50%;background:#25D366;display:flex;align-items:center;justify-content:center;box-shadow:0 6px 22px rgba(0,0,0,.45);text-decoration:none;transition:transform .15s}
.wa:hover{transform:scale(1.07)}
.wa svg{width:30px;height:30px;fill:#fff}
.wa::after{content:"";position:absolute;inset:0;border-radius:50%;border:2px solid #25D366;animation:pulse 2s ease-out infinite}
@keyframes pulse{0%{transform:scale(1);opacity:.8}100%{transform:scale(1.65);opacity:0}}

/* Reveal */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:4px}
/* ---------- Mobile: centrado estilo AnyDesk ---------- */
@media(max-width:760px){
  .hero-grid > div:first-child{text-align:center}
  .eyebrow{justify-content:center}
  .eyebrow::after{content:"";width:26px;height:1px;background:var(--amber)}
  .hero-sub{margin-left:auto;margin-right:auto}
  .hero-actions{justify-content:center}
  .hero-meta{justify-content:center}
  .sec-head{text-align:center;margin-left:auto;margin-right:auto}
  .svc{text-align:center}
  .svc ul{text-align:left;display:inline-block}
  .step{text-align:center}
  .step:hover{border-top-color:var(--amber)}
  .stack-row{justify-content:center}
  .about-grid > div:first-child{text-align:center}
  .contact > div:first-child{text-align:center}
  .foot{flex-direction:column;align-items:center;text-align:center;gap:8px}
}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}