/* Hackztlan Lab — hoja de estilo del sitio (sin fuentes ni scripts externos) */
:root{
  --bg:#070a1c; --bg2:#0b1030; --panel:#0e1436; --line:#1f2a5a;
  --fg:#eef1fb; --muted:#9aa6cf; --dim:#5d6894;
  --turq:#2dd4bf; --lima:#a3e635; --verde:#4ade80; --magenta:#e11d9b; --ambar:#f5b949;
  --display:"Segoe UI Variable Display","Segoe UI",system-ui,-apple-system,"Roboto",sans-serif;
  --body:"Segoe UI",system-ui,-apple-system,"Roboto",sans-serif;
  --mono:"Cascadia Mono","Cascadia Code",Consolas,ui-monospace,"SF Mono","Roboto Mono",monospace;
  --r:16px;
  color-scheme:dark;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--fg);font-family:var(--body);line-height:1.55;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit}
:focus-visible{outline:3px solid var(--turq);outline-offset:3px;border-radius:6px}
.wrap{width:100%;max-width:1120px;margin:0 auto;padding:0 20px}
.mono{font-family:var(--mono)}

/* fondo: rejilla que respira + red de puntos (canvas) */
.fondo{position:fixed;inset:0;z-index:-1;pointer-events:none}
.fondo .rejilla{position:absolute;inset:0;opacity:.55;
  background-image:linear-gradient(rgba(45,212,191,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(45,212,191,.05) 1px,transparent 1px);
  background-size:44px 44px;
  -webkit-mask-image:radial-gradient(80% 60% at 50% 20%,#000,transparent);mask-image:radial-gradient(80% 60% at 50% 20%,#000,transparent)}
.fondo .halo{position:absolute;width:900px;height:900px;border-radius:50%;filter:blur(40px);opacity:.35}
.fondo .h1{left:-300px;top:-380px;background:radial-gradient(circle,rgba(45,212,191,.35),transparent 65%);animation:deriva 26s ease-in-out infinite alternate}
.fondo .h2{right:-360px;top:40vh;background:radial-gradient(circle,rgba(225,29,155,.22),transparent 65%);animation:deriva 32s ease-in-out infinite alternate-reverse}
#red{position:absolute;inset:0;width:100%;height:100%;opacity:.55}
@keyframes deriva{to{transform:translate(120px,80px) scale(1.08)}}

/* aviso del QR */
.aviso{position:relative;z-index:5;background:linear-gradient(90deg,rgba(245,185,73,.16),rgba(245,185,73,.04));border-bottom:1px solid rgba(245,185,73,.35)}
.aviso .wrap{display:flex;gap:12px;align-items:center;padding-top:10px;padding-bottom:10px;font-size:.92rem}
.aviso b{color:var(--ambar)}
.aviso a{color:var(--ambar);font-weight:600}
.aviso .x{margin-left:auto;flex:none;background:none;border:0;color:var(--muted);font-size:1.3rem;line-height:1;cursor:pointer;padding:4px 8px}
.aviso[hidden]{display:none}

/* barra */
header.barra{position:sticky;top:0;z-index:10;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);background:rgba(7,10,28,.72);border-bottom:1px solid rgba(31,42,90,.6)}
header.barra .wrap{display:flex;align-items:center;gap:16px;height:64px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:800;letter-spacing:.2px}
.logo img{width:36px;height:36px;border-radius:50%;box-shadow:0 0 0 2px rgba(45,212,191,.35)}
.logo b{color:var(--turq)}
nav.menu{margin-left:auto;display:flex;gap:4px}
nav.menu a{text-decoration:none;color:var(--muted);font-size:.95rem;padding:8px 12px;border-radius:10px;transition:color .2s,background .2s}
nav.menu a:hover{color:var(--fg);background:rgba(45,212,191,.08)}
nav.menu a.cta-mini{color:#06231d;background:var(--turq);font-weight:700}
nav.menu a.cta-mini:hover{background:#5eead4;color:#06231d}
@media (max-width:640px){nav.menu a:not(.cta-mini){display:none}}

/* botones */
.btn{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font-weight:700;font-size:1.02rem;padding:14px 22px;border-radius:14px;transition:transform .18s ease,box-shadow .18s ease,background .18s}
.btn:hover{transform:translateY(-2px)}
.btn.pri{background:var(--lima);color:#122003;box-shadow:0 10px 30px rgba(163,230,53,.25)}
.btn.pri:hover{box-shadow:0 14px 38px rgba(163,230,53,.38)}
.btn.sec{background:rgba(45,212,191,.08);color:var(--fg);border:1px solid rgba(45,212,191,.45)}
.btn.sec:hover{background:rgba(45,212,191,.16)}
.btn svg{width:18px;height:18px;flex:none}

/* hero */
.hero{padding:72px 0 56px}
.hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.ceja{font-family:var(--mono);font-size:.82rem;letter-spacing:.16em;text-transform:uppercase;color:var(--turq);display:flex;align-items:center;gap:10px}
.ceja::before{content:"";width:28px;height:2px;background:var(--magenta)}
.hero h1{font-family:var(--display);font-weight:800;font-size:clamp(2.3rem,5.2vw,3.7rem);line-height:1.02;letter-spacing:-.025em;margin:18px 0 18px;text-wrap:balance}
.hero h1 .l{color:var(--lima)}
.hero h1 .t{background:linear-gradient(90deg,var(--turq),var(--lima));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:1.15rem;color:#c9d1ee;max-width:46ch}
.hero .botones{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.sellos{display:flex;flex-wrap:wrap;gap:18px;margin-top:28px;font-family:var(--mono);font-size:.85rem;color:var(--muted)}
.sellos span::before{content:"✓ ";color:var(--verde)}
@media (max-width:900px){.hero{padding:44px 0 32px}.hero .wrap{grid-template-columns:1fr;gap:36px}}

/* terminal del hero */
.term{position:relative;background:linear-gradient(180deg,#0c1236,#090d26);border:1px solid var(--line);border-radius:18px;box-shadow:0 30px 80px rgba(0,0,0,.55),0 0 0 1px rgba(45,212,191,.06),0 0 60px rgba(45,212,191,.08);overflow:hidden}
.term .tb{display:flex;align-items:center;gap:8px;padding:12px 14px;border-bottom:1px solid var(--line);font-family:var(--mono);font-size:.8rem;color:var(--dim)}
.term .tb i{width:11px;height:11px;border-radius:50%;background:#2a335f}
.term .tb i:nth-child(1){background:#ff5f57}.term .tb i:nth-child(2){background:#febc2e}.term .tb i:nth-child(3){background:#28c840}
.term .tb span{margin-left:8px}
.term pre{font-family:var(--mono);font-size:clamp(.82rem,2.6vw,.98rem);line-height:1.7;padding:18px 20px 22px;min-height:290px;white-space:pre-wrap;word-break:break-word;color:#cfd6f3}
.term .p{color:var(--verde)} .term .d{color:var(--turq)} .term .m{color:var(--magenta)} .term .g{color:var(--dim)} .term .ok{color:var(--lima)}
.cursor{display:inline-block;width:.6em;height:1.15em;vertical-align:-.2em;background:var(--lima);animation:parpadeo 1s steps(1) infinite}
@keyframes parpadeo{50%{opacity:0}}
.term .tux{position:absolute;right:14px;bottom:12px;width:74px;image-rendering:pixelated;opacity:.95;animation:flota 5s ease-in-out infinite}
@keyframes flota{50%{transform:translateY(-8px) rotate(-3deg)}}

/* secciones */
section{padding:84px 0;position:relative}
.titulo{max-width:720px;margin-bottom:40px}
.titulo h2{font-family:var(--display);font-weight:800;font-size:clamp(1.9rem,4.4vw,2.8rem);line-height:1.08;letter-spacing:-.02em;margin-top:12px;text-wrap:balance}
.titulo h2 .l{color:var(--lima)} .titulo h2 .t{color:var(--turq)}
.titulo p{color:var(--muted);font-size:1.08rem;margin-top:12px}
@media (max-width:640px){section{padding:60px 0}}

/* ruta del curso */
.ruta{position:relative;display:grid;gap:12px;padding-left:34px;max-width:820px}
.ruta .riel{position:absolute;left:11px;top:10px;bottom:10px;width:3px;border-radius:3px;background:#1a2350;overflow:hidden}
.ruta .riel b{position:absolute;left:0;top:0;width:100%;height:var(--avance,0%);background:linear-gradient(var(--magenta),var(--turq) 20%,var(--lima));box-shadow:0 0 14px var(--turq);transition:height .15s linear}
.clase{position:relative;display:flex;align-items:center;gap:16px;text-decoration:none;background:rgba(14,20,54,.7);border:1px solid var(--line);border-radius:14px;padding:14px 18px;transition:transform .2s ease,border-color .2s,background .2s}
.clase::before{content:"";position:absolute;left:-29px;top:50%;width:13px;height:13px;margin-top:-6.5px;border-radius:50%;background:#1a2350;border:2px solid #2b3670;transition:background .3s,box-shadow .3s,border-color .3s}
.clase.lit::before{background:var(--lima);border-color:var(--lima);box-shadow:0 0 0 4px rgba(163,230,53,.15),0 0 16px var(--lima)}
a.clase:hover{transform:translateX(6px);border-color:rgba(45,212,191,.6);background:rgba(20,28,70,.9)}
.clase .n{font-family:var(--mono);font-weight:700;color:var(--turq);min-width:44px}
.clase .nom{font-weight:600;font-size:1.05rem}
.clase .nom small{display:block;color:var(--muted);font-weight:400;font-size:.88rem}
.clase .est{margin-left:auto;font-family:var(--mono);font-size:.74rem;letter-spacing:.06em;padding:5px 10px;border-radius:8px;white-space:nowrap}
.clase.ya .est{background:rgba(74,222,128,.14);color:var(--verde)}
.clase.aqui{border-color:rgba(225,29,155,.55);background:linear-gradient(90deg,rgba(225,29,155,.14),rgba(14,20,54,.7))}
.clase.aqui .n{color:var(--magenta)}
.clase.aqui .est{background:var(--magenta);color:#fff}
.clase.pronto{opacity:.6}
.clase.pronto .est{border:1px solid #33407a;color:var(--muted)}
.ruta-pie{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px}

/* libro */
.libro .wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:56px;align-items:center}
.portada3d{perspective:1100px;justify-self:center}
.portada3d .lib{position:relative;width:min(320px,70vw);aspect-ratio:680/880;border-radius:6px 14px 14px 6px;transform:rotateY(-18deg) rotateX(4deg);transform-style:preserve-3d;transition:transform .5s cubic-bezier(.2,.7,.2,1);box-shadow:-24px 30px 60px rgba(0,0,0,.6),0 0 70px rgba(45,212,191,.12);animation:flota-lib 7s ease-in-out infinite}
.portada3d .lib img{width:100%;height:100%;object-fit:cover;border-radius:inherit}
.portada3d .lib::after{content:"";position:absolute;inset:0;border-radius:inherit;background:linear-gradient(105deg,rgba(255,255,255,.18),transparent 30%,transparent 70%,rgba(255,255,255,.06));pointer-events:none}
.portada3d .lib::before{content:"";position:absolute;left:0;top:2%;bottom:2%;width:14px;transform:translateX(-13px) rotateY(-90deg);transform-origin:right;background:linear-gradient(90deg,#05071a,#141b4a);border-radius:3px 0 0 3px}
.portada3d:hover .lib{transform:rotateY(-4deg) rotateX(2deg)}
@keyframes flota-lib{50%{translate:0 -10px}}
.lista-libro{list-style:none;display:grid;gap:12px;margin:22px 0 28px}
.lista-libro li{display:flex;gap:12px;color:#cfd6f3}
.lista-libro li::before{content:"›";color:var(--lima);font-family:var(--mono);font-weight:700}
.nota-libro{margin-top:18px;font-size:.92rem;color:var(--muted)}
.nota-libro b{color:var(--fg)}
@media (max-width:900px){.libro .wrap{grid-template-columns:1fr;gap:40px}}

/* base / pirámide */
.base .wrap{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.piramide{position:relative;border-radius:22px;overflow:hidden;border:1px solid var(--line);aspect-ratio:825/1024;max-width:460px;justify-self:center;width:100%}
.piramide img{width:100%;height:100%;object-fit:cover}
.piramide canvas{position:absolute;inset:0;width:100%;height:100%;mix-blend-mode:screen}
.escalones{list-style:none;display:grid;gap:10px;counter-reset:e}
.escalones li{counter-increment:e;display:flex;gap:14px;align-items:flex-start;padding:14px 16px;border-radius:14px;background:rgba(14,20,54,.6);border:1px solid var(--line)}
.escalones li::before{content:counter(e);font-family:var(--mono);font-weight:700;color:#06231d;background:var(--turq);min-width:28px;height:28px;border-radius:8px;display:grid;place-items:center}
.escalones li.hoy{border-color:rgba(163,230,53,.6)}
.escalones li.hoy::before{background:var(--lima)}
.escalones b{display:block}
.escalones span{color:var(--muted);font-size:.93rem}
@media (max-width:900px){.base .wrap{grid-template-columns:1fr}}

/* tarjetas */
.tarjetas{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.tarjeta{position:relative;padding:24px;border-radius:var(--r);background:linear-gradient(180deg,rgba(14,20,54,.9),rgba(9,13,38,.9));border:1px solid var(--line);overflow:hidden;text-decoration:none;transition:transform .25s ease,border-color .25s}
.tarjeta::after{content:"";position:absolute;inset:-1px;border-radius:inherit;background:radial-gradient(400px circle at var(--mx,50%) var(--my,0%),rgba(45,212,191,.16),transparent 45%);opacity:0;transition:opacity .3s;pointer-events:none}
.tarjeta:hover{transform:translateY(-4px);border-color:rgba(45,212,191,.5)}
.tarjeta:hover::after{opacity:1}
.tarjeta .ico{font-family:var(--mono);font-size:.8rem;color:var(--turq);letter-spacing:.12em;text-transform:uppercase}
.tarjeta h3{font-family:var(--display);font-size:1.3rem;margin:10px 0 8px}
.tarjeta p{color:var(--muted);font-size:.96rem}
@media (max-width:900px){.tarjetas{grid-template-columns:1fr}}

/* apoya */
.apoya .caja{display:grid;grid-template-columns:auto 1fr auto;gap:28px;align-items:center;padding:34px;border-radius:24px;background:linear-gradient(120deg,rgba(225,29,155,.16),rgba(45,212,191,.10) 60%,rgba(163,230,53,.10));border:1px solid rgba(225,29,155,.35)}
.apoya .caja img{width:110px;image-rendering:pixelated;animation:flota 5s ease-in-out infinite}
.apoya h2{font-family:var(--display);font-size:clamp(1.6rem,3.6vw,2.2rem);line-height:1.1}
.apoya p{color:#cfd6f3;margin-top:8px}
.redes{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.redes a{display:inline-flex;align-items:center;gap:8px;text-decoration:none;font-size:.92rem;padding:9px 14px;border-radius:12px;border:1px solid var(--line);background:rgba(14,20,54,.6);transition:border-color .2s,transform .2s}
.redes a:hover{border-color:var(--turq);transform:translateY(-2px)}
.redes svg{width:18px;height:18px}
@media (max-width:820px){.apoya .caja{grid-template-columns:1fr;text-align:left;padding:26px}.apoya .caja img{width:84px}}

/* pie */
footer{border-top:1px solid var(--line);padding:44px 0 56px;margin-top:40px;color:var(--muted);font-size:.92rem}
footer .wrap{display:grid;grid-template-columns:1.2fr 1fr;gap:28px}
footer b{color:var(--fg)}
footer a{color:var(--turq)}
footer .regla{border-left:3px solid var(--magenta);padding-left:14px}
footer .lic{grid-column:1/-1;font-family:var(--mono);font-size:.8rem;color:var(--dim)}
@media (max-width:820px){footer .wrap{grid-template-columns:1fr}}

/* aparición al hacer scroll */
.rev{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.2,1)}
.rev.vis{opacity:1;transform:none}
.rev.d1{transition-delay:.08s}.rev.d2{transition-delay:.16s}.rev.d3{transition-delay:.24s}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .rev{opacity:1;transform:none}
}
.titulo.sin-margen{margin-bottom:0}
.botones.fila{display:flex;flex-wrap:wrap;gap:12px}

/* visitantes espaciales (pasan de vez en cuando por detrás) */
main{position:relative;z-index:1}
.visitas{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.visita{position:absolute;left:0;top:0;will-change:transform}
.visita img{image-rendering:pixelated}
.cohete{width:150px;filter:drop-shadow(0 0 18px rgba(45,212,191,.35))}
.cohete .tux{position:absolute;left:76px;top:14px;width:28px}
.cohete .fuego{transform-origin:20px 50%;animation:fuego .12s steps(2) infinite alternate}
@keyframes fuego{to{transform:scaleX(1.35) scaleY(.85)}}
.ovni{width:170px;filter:drop-shadow(0 0 22px rgba(163,230,53,.35))}
.ovni .tux{position:absolute;left:66px;top:4px;width:38px}
.ovni .luz{animation:luces .5s steps(3) infinite}
@keyframes luces{33%{fill:#2dd4bf}66%{fill:#e11d9b}}
.ovni .rayo{opacity:.0;animation:rayo 3s ease-in-out infinite}
@keyframes rayo{40%,60%{opacity:.45}}
.astro{width:86px;height:86px;border-radius:50%;background:radial-gradient(circle at 35% 30%,rgba(255,255,255,.35),rgba(45,212,191,.10) 45%,rgba(45,212,191,.05) 70%);box-shadow:inset 0 0 0 3px rgba(220,240,255,.45),0 0 26px rgba(45,212,191,.25)}
.astro img{position:absolute;left:13px;top:12px;width:60px}
.astro::after{content:"";position:absolute;left:50%;top:96%;width:2px;height:60px;background:linear-gradient(rgba(220,240,255,.5),transparent);transform-origin:top}
@media (max-width:640px){.cohete{width:110px}.cohete .tux{left:56px;top:10px;width:21px}.ovni{width:120px}.ovni .tux{left:46px;top:3px;width:28px}.astro{width:64px;height:64px}.astro img{left:10px;top:9px;width:44px}}

/* reproductor de clases (YouTube sin cookies, solo al dar clic) */
.visor{position:fixed;inset:0;z-index:50;display:grid;place-items:center;padding:16px;background:rgba(3,5,15,.82);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);animation:aparece .25s ease}
.visor[hidden]{display:none}
.visor-caja{width:min(1000px,100%);border-radius:18px;overflow:hidden;border:1px solid var(--line);background:#05071a;box-shadow:0 40px 100px rgba(0,0,0,.7),0 0 60px rgba(45,212,191,.12);animation:sube .3s cubic-bezier(.2,.7,.2,1)}
.visor-barra{display:flex;align-items:center;gap:14px;padding:10px 12px 10px 18px;font-weight:600}
.visor-barra span{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.visor-barra a{font-size:.88rem;color:var(--turq);text-decoration:none;white-space:nowrap}
.visor-barra .x{background:none;border:0;color:var(--muted);font-size:1.6rem;line-height:1;cursor:pointer;padding:2px 8px}
.visor-video{aspect-ratio:16/9;background:#000}
.visor-video iframe{width:100%;height:100%;border:0;display:block}
@keyframes aparece{from{opacity:0}}
@keyframes sube{from{transform:translateY(24px) scale(.97);opacity:0}}