/* Base compartida con index.html (mismos tokens, nav, botones y pie) */
:root{
  color-scheme:dark;
  --ink:#020915; --deep:#001836; --panel:#06152b; --panel2:#0a1d38; --line:#15294a; --line2:#1f3a63;
  --nebula:#007BFF; --glow:#3D9BFF; --sky:#9cc9ff; --ti:#C0C4D4; --steel:#848B97;
  --ice:#F7FAFF; --text:#dbe4f1; --mute:#8fa2bf; --dim:#5f7390;
  --display:"Orbitron","Eurostile","Arial Black",sans-serif;
  --body:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,Consolas,monospace;
  --max:1200px; --gut:clamp(16px,4vw,40px);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{margin:0;background:var(--ink);color:var(--text);font:400 16px/1.65 var(--body);-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
:focus-visible{outline:2px solid var(--glow);outline-offset:3px;border-radius:4px}
.wrap{max-width:var(--max);margin:0 auto;padding-inline:var(--gut)}
.chrome{background:linear-gradient(180deg,#fff 0%,#e3e7ef 40%,#9aa2b0 62%,#e6eaf2 84%,#b3bac6 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.blue{color:var(--glow);-webkit-text-fill-color:var(--glow);text-shadow:0 0 30px rgba(0,123,255,.55)}
h1,h2,h3{margin:0;text-wrap:balance}
.lead{font-size:clamp(16px,1.6vw,19px);color:var(--mute);max-width:62ch;margin:20px 0 0}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;font:600 15px/1 var(--body);letter-spacing:.01em;padding:16px 24px;border-radius:12px;border:1px solid transparent;cursor:pointer;transition:transform .2s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease}
.btn-p{background:linear-gradient(180deg,#1f8dff,#0068e0);color:#fff;box-shadow:0 10px 40px -10px rgba(0,123,255,.8),inset 0 1px 0 rgba(255,255,255,.25)}
.btn-p:hover{transform:translateY(-2px);box-shadow:0 18px 50px -12px rgba(0,123,255,.95),inset 0 1px 0 rgba(255,255,255,.3)}
.btn-g{background:rgba(255,255,255,.03);color:var(--ice);border-color:var(--line2)}
.btn-g:hover{border-color:var(--glow);background:rgba(61,155,255,.08)}
.btn svg{width:16px;height:16px;flex:none}

/* nav: en las guias siempre con fondo (no hay cielo detras) */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;padding-top:env(safe-area-inset-top,0px);border-bottom:1px solid transparent}
.nav.on{background:rgba(2,9,21,.86);backdrop-filter:blur(18px) saturate(1.4);-webkit-backdrop-filter:blur(18px) saturate(1.4);border-bottom-color:rgba(31,58,99,.6)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:76px;gap:20px}
.brand{display:flex;align-items:center;gap:12px;min-height:44px}
.brand img{width:58px;height:auto}
.brand b{font:900 21px/1 var(--display);letter-spacing:.04em;white-space:nowrap}
.brand small{display:block;font:500 8.5px/1 var(--display);letter-spacing:.55em;color:var(--ti);margin-top:5px}
.links{display:flex;align-items:center;white-space:nowrap;gap:26px;font-size:14px;color:var(--mute)}
.links a:not(.btn){transition:color .2s;min-height:44px;display:inline-flex;align-items:center}
.links a:not(.btn):hover,.links a[aria-current]{color:var(--ice)}
.links a[aria-current]{box-shadow:inset 0 -2px 0 var(--glow)}
.links .btn{padding:12px 18px;font-size:14px;min-height:44px}
.menu{display:none;background:none;border:1px solid var(--line2);color:var(--ice);border-radius:10px;width:44px;height:44px;cursor:pointer}
@media (max-width:1080px){
  .links{position:fixed;inset:calc(76px + env(safe-area-inset-top,0px)) 0 auto 0;flex-direction:column;align-items:stretch;gap:0;padding:8px var(--gut) 24px;background:var(--ink);border-bottom:1px solid var(--line);display:none;padding-bottom:calc(24px + env(safe-area-inset-bottom,0px));max-height:calc(100svh - 76px - env(safe-area-inset-top,0px));overflow-y:auto}
  .links.open{display:flex}
  .links a:not(.btn){padding:12px 0;border-bottom:1px solid var(--line);font-size:16px}
  .links a[aria-current]{box-shadow:inset 3px 0 0 var(--glow);padding-left:12px}
  .links .btn{margin-top:18px;padding:16px}
  .menu{display:grid;place-items:center}
}

/* cabecera de guia: la orbita del simbolo, en linea fina detras del titulo */
.ahero{position:relative;overflow:hidden;padding:148px 0 52px;border-bottom:1px solid var(--line);background:radial-gradient(ellipse 70% 100% at 88% 0%,rgba(0,123,255,.22),transparent 60%),linear-gradient(180deg,#03122a,var(--ink))}
.ahero::after{content:"";position:absolute;right:-140px;top:58px;width:min(780px,92vw);height:230px;border-radius:50%;border:1.5px solid rgba(61,155,255,.32);transform:rotate(-16deg);box-shadow:0 0 40px rgba(0,123,255,.18);pointer-events:none}
.ahero .wrap{position:relative;z-index:1}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:4px 10px;font:500 12px/1.5 var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--mute)}
.crumbs a{color:var(--glow);min-height:44px;display:inline-flex;align-items:center}
.crumbs a:hover{color:var(--ice)}
.crumbs [aria-current]{color:var(--ti)}
.ahero h1{font:900 clamp(30px,4.6vw,58px)/1.08 var(--display);letter-spacing:.005em;margin-top:10px;max-width:22ch}
.meta{margin:22px 0 0;font:500 12.5px/1.5 var(--mono);letter-spacing:.08em;color:var(--mute)}

/* cuerpo: indice a la izquierda, texto a la derecha */
.alayout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:clamp(40px,6vw,88px);padding-block:56px 96px;align-items:start}
.side{position:sticky;top:104px}
.side-t{margin:0 0 10px;font:500 12px/1 var(--mono);letter-spacing:.2em;text-transform:uppercase;color:var(--glow)}
.toc{list-style:none;margin:0;padding:0;border-left:1px solid var(--line2)}
.toc a{display:flex;align-items:center;min-height:44px;padding:6px 0 6px 16px;margin-left:-1px;border-left:2px solid transparent;font-size:14px;line-height:1.35;color:var(--mute);transition:color .2s,border-color .2s}
.toc a:hover{color:var(--ice);border-left-color:var(--glow)}
@media (max-width:1000px){
  .alayout{grid-template-columns:minmax(0,1fr);padding-block:36px 72px;gap:32px}
  .side{position:static;padding:18px 20px 10px;border:1px solid var(--line);border-radius:16px;background:rgba(6,21,43,.6)}
  .toc{border-left:0}
  .toc a{padding-left:0;border-left:0;margin-left:0;border-bottom:1px solid var(--line)}
  .toc li:last-child a{border-bottom:0}
}

.prose{max-width:72ch;font-size:17px;line-height:1.72;color:var(--text)}
.prose section{margin-top:52px}
.prose h2{font:700 clamp(21px,2.2vw,27px)/1.25 var(--display);letter-spacing:.01em;color:var(--ice)}
.prose h3{font:600 18px/1.4 var(--body);color:var(--ice)}
.prose p{margin:16px 0 0}
.prose strong{color:var(--ice);font-weight:600}
.prose a:not(.btn){color:var(--sky);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px;padding-block:12px}
.prose a:not(.btn):hover{color:var(--ice);text-decoration-thickness:2px}
.prose ul{margin:18px 0 0;padding:0;list-style:none;display:grid;gap:12px}
.prose li{position:relative;padding-left:22px}
.prose ul li::before{content:"";position:absolute;left:2px;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--glow);box-shadow:0 0 10px var(--nebula)}
.resp{font-size:18px;line-height:1.65;font-weight:500;color:var(--ice);padding-left:18px;border-left:2px solid var(--glow)}
.corto{margin:0!important;padding:22px 24px;border-radius:16px;border:1px solid var(--line2);background:linear-gradient(180deg,rgba(10,29,56,.8),rgba(6,21,43,.6));font-size:17px;color:var(--text)}
.corto strong{font:700 13px/1 var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--glow);margin-right:6px}
.faq .q{padding:20px 0;border-bottom:1px solid var(--line)}
.faq .q:first-of-type{margin-top:8px}
.faq .q p{margin-top:8px;color:var(--mute)}
.fuentes ul{gap:4px}
.fuentes li{font-size:15.5px}
.fuentes a:not(.btn){display:inline-flex;align-items:center;min-height:44px;padding-block:6px}

.cta-box{position:relative;overflow:hidden;margin-top:64px;padding:clamp(26px,4vw,44px);border-radius:24px;border:1px solid var(--line2);background:radial-gradient(ellipse 80% 120% at 100% 0%,rgba(0,123,255,.22),transparent 55%),linear-gradient(160deg,#071c3b,#030e20 70%)}
.cta-box h2{font:900 clamp(22px,2.6vw,30px)/1.15 var(--display);color:var(--ice)}
.cta-box p{margin:14px 0 0;color:var(--mute);max-width:60ch;font-size:16px}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}

/* tarjetas de guias */
.rel{border-top:1px solid var(--line);padding-block:64px 80px;background:linear-gradient(180deg,#020c1d,var(--ink))}
.rel-t{font:500 12px/1 var(--mono);letter-spacing:.2em;text-transform:uppercase;color:var(--glow)}
.tgrid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:24px}
.tgrid.dos{grid-template-columns:repeat(2,minmax(0,1fr))}
@media (max-width:900px){.tgrid,.tgrid.dos{grid-template-columns:1fr}}
.tcard{display:flex;flex-direction:column;gap:10px;padding:28px 26px;border-radius:20px;border:1px solid var(--line);background:linear-gradient(180deg,rgba(10,29,56,.75),rgba(6,21,43,.55));transition:border-color .3s ease,transform .3s ease}
.tcard:hover{border-color:var(--glow);transform:translateY(-3px)}
.tcard h3{font:700 19px/1.3 var(--body);color:var(--ice)}
.tcard p{margin:0;color:var(--mute);font-size:15px}
.tcard .leer{margin-top:auto;padding-top:8px;display:inline-flex;align-items:center;gap:8px;font:600 14px/1 var(--body);color:var(--glow)}
.tcard .leer svg{width:15px;height:15px}
.alist{padding-block:56px 96px}
.principio{margin:40px 0 0;max-width:72ch;padding-left:18px;border-left:2px solid var(--glow);color:var(--ice);font-size:17px;font-weight:500}

/* aviso + pie (como index.html) */
.legal{border-top:1px solid var(--line);padding-block:48px}
.legal h2{font:600 13px/1 var(--mono);letter-spacing:.2em;text-transform:uppercase;color:var(--mute)}
.legal p{font-size:13px;line-height:1.75;color:var(--mute);max-width:100ch;margin:14px 0 0}
footer{border-top:1px solid var(--line);padding-block:32px calc(32px + env(safe-area-inset-bottom,0px))}
footer .wrap{display:flex;justify-content:space-between;align-items:center;gap:16px 20px;flex-wrap:wrap;font-size:13px;color:var(--mute)}
footer nav{display:flex;gap:0 22px;flex-wrap:wrap}
footer nav a{min-height:44px;display:inline-flex;align-items:center}
footer a:hover{color:var(--ice)}

@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn,.tcard{transition:none}.btn-p:hover,.tcard:hover{transform:none}}