/* blog.altto.mx — sistema de marca Altto, tema constelaciones.
   Sin emoji. Serif Fraunces para titulares, Inter para lectura, mono para metadatos. */
@font-face{font-family:"Fraunces";src:url("/fonts/Fraunces-var.woff2") format("woff2");font-weight:300 700;font-style:normal;font-display:swap}
@font-face{font-family:"Fraunces";src:url("/fonts/Fraunces-italic.woff2") format("woff2");font-weight:300 700;font-style:italic;font-display:swap}
@font-face{font-family:"Inter";src:url("/fonts/Inter-var.woff2") format("woff2");font-weight:100 900;font-style:normal;font-display:swap}
:root{
  --void:#0D1117; --void2:#080b12;
  --ink:#F6F6FA; --muted:#a7b0c6; --faint:#727e97;
  --gold:#6C5CE7; --gold-hi:#8FA7FF;
  --line:rgba(255,255,255,.085); --line-2:rgba(255,255,255,.14);
  --serif:"Fraunces",Georgia,"Times New Roman",serif;
  --sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:ui-monospace,"SF Mono","Cascadia Code",Menlo,Consolas,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
html,body{background:var(--void);overflow-x:clip}
body{color:var(--ink);font-family:var(--sans);font-size:16.5px;line-height:1.68;-webkit-font-smoothing:antialiased}
::selection{background:rgba(108,92,231,.28);color:#fff}
a{color:inherit;text-decoration:none}
a:focus-visible,button:focus-visible{outline:1.5px solid var(--gold);outline-offset:4px;border-radius:4px}
svg,img{display:block;max-width:100%}

.wrap{width:min(760px,92vw);margin:0 auto}
.wrap-wide{width:min(1080px,92vw);margin:0 auto}

/* ---- cabecera ---- */
#hdr{position:fixed;top:0;left:0;right:0;z-index:50;padding:15px 0;
  background:linear-gradient(180deg,rgba(6,8,15,.9),rgba(6,8,15,.35) 62%,transparent);
  opacity:0;transform:translateY(-10px);transition:opacity .6s ease,transform .6s ease;pointer-events:none}
#hdr.vis{opacity:1;transform:none;pointer-events:auto}
#hdr .wrap-wide{display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:10px}
.brand img{width:22px;height:22px}
.brand span{font-family:var(--serif);font-weight:560;font-size:21px;letter-spacing:-.03em;
  font-variation-settings:"opsz" 52,"wght" 420}
.cta-mini{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  border:1px solid var(--line-2);border-radius:999px;padding:9px 18px;transition:border-color .35s,background .35s;white-space:nowrap}
.cta-mini:hover{border-color:rgba(108,92,231,.6);background:rgba(108,92,231,.08)}

/* ---- lienzo de constelaciones (solo en el indice) ---- */
#sky{position:fixed;inset:0;width:100%;height:100%;z-index:0;pointer-events:none;display:block}
#veil{position:fixed;inset:0;z-index:1;pointer-events:none;
  background:radial-gradient(ellipse 130% 100% at 50% 45%,transparent 50%,rgba(3,4,9,.75) 100%)}
main{position:relative;z-index:2}

/* ---- portada del indice ---- */
/* la constelacion ocupa la parte alta del lienzo; el wordmark vive debajo, sin encimarse */
#portada{min-height:100vh;min-height:100svh;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;
  text-align:center;padding:0 24px clamp(96px,19vh,180px)}
#portada .marca{font-family:var(--serif);font-weight:560;font-size:clamp(44px,7vw,84px);letter-spacing:-.03em;line-height:1;
  font-variation-settings:"opsz" 84,"wght" 460;opacity:0;transition:opacity 1.2s ease}
#portada .marca.in{opacity:1}
#portada .sub{margin-top:18px;color:var(--muted);font-family:var(--serif);font-style:italic;
  font-size:clamp(15px,1.5vw,19.5px);opacity:0;transition:opacity 1.2s ease .3s}
#portada .sub.in{opacity:1}
#pista{position:absolute;bottom:26px;left:0;right:0;text-align:center;font-family:var(--mono);font-size:10.5px;
  letter-spacing:.22em;text-transform:uppercase;color:var(--faint);opacity:0;transition:opacity .8s ease .8s}
#pista.in{opacity:1}
#portada.fuera #pista{opacity:0;transition:opacity .3s}

/* ---- listado de posts ---- */
#lista{padding:clamp(40px,10vh,110px) 0 0}
.shead{text-align:center;margin-bottom:clamp(34px,6vh,64px)}
.kicker{font-family:var(--mono);font-size:11px;letter-spacing:.3em;text-transform:uppercase;color:var(--faint)}
.shead h2{font-family:var(--serif);font-weight:540;font-size:clamp(27px,3.6vw,42px);letter-spacing:-.02em;margin-top:12px;
  font-variation-settings:"opsz" 84,"wght" 480}

.post{display:block;border:1px solid var(--line);border-radius:16px;padding:clamp(22px,3vw,32px);margin-bottom:18px;
  background:rgba(120,130,220,.035);position:relative;
  opacity:0;transform:translateY(26px);filter:blur(5px);
  transition:opacity .9s cubic-bezier(.2,.7,.2,1),transform 1s cubic-bezier(.2,.7,.2,1),filter .8s ease,border-color .35s,background .35s}
.post.in{opacity:1;transform:none;filter:none}
.post:hover{border-color:rgba(108,92,231,.45);background:rgba(108,92,231,.06)}
.post .meta{font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--faint);
  display:flex;gap:14px;flex-wrap:wrap}
.post h3{font-family:var(--serif);font-weight:540;font-size:clamp(21px,2.4vw,28px);line-height:1.2;letter-spacing:-.015em;
  margin:12px 0 10px;text-wrap:balance;font-variation-settings:"opsz" 84,"wght" 480}
.post p{color:var(--muted);font-size:15.6px;text-wrap:pretty}
.post .leer{display:inline-block;margin-top:14px;font-family:var(--mono);font-size:11px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--gold-hi)}

/* ---- articulo ---- */
article.post-body{padding:calc(64px + clamp(30px,7vh,80px)) 0 0}
.post-head{text-align:center;margin-bottom:clamp(34px,6vh,60px)}
.post-head .meta{justify-content:center;font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--faint);display:flex;gap:14px;flex-wrap:wrap}
h1{font-family:var(--serif);font-weight:540;font-size:clamp(31px,4.6vw,52px);line-height:1.09;letter-spacing:-.02em;
  margin:16px 0 0;text-wrap:balance;font-variation-settings:"opsz" 84,"wght" 480}
h1 em{font-style:italic;color:var(--gold-hi)}
.entrada{color:var(--muted);font-size:clamp(17px,1.6vw,19.5px);margin-top:20px;text-wrap:pretty}
h2{font-family:var(--serif);font-weight:540;font-size:clamp(23px,2.9vw,32px);line-height:1.2;letter-spacing:-.015em;
  margin:clamp(42px,6.5vh,70px) 0 16px;text-wrap:balance;font-variation-settings:"opsz" 84,"wght" 480}
h3{font-family:var(--serif);font-weight:540;font-size:20px;letter-spacing:-.01em;margin:30px 0 8px}
p{margin:0 0 18px;color:var(--muted);text-wrap:pretty}
p strong{color:var(--ink);font-weight:600}
article a{color:var(--gold-hi);text-decoration:underline;text-underline-offset:3px;
  text-decoration-color:rgba(143,167,255,.4);transition:text-decoration-color .3s}
article a:hover{text-decoration-color:var(--gold-hi)}
ul,ol{margin:0 0 20px;padding-left:0;list-style:none}
li{color:var(--muted);margin-bottom:11px;padding-left:24px;position:relative}
li::before{content:"";position:absolute;left:6px;top:.72em;width:5px;height:5px;border-radius:50%;background:var(--gold)}
ol{counter-reset:n}
ol li{counter-increment:n}
ol li::before{content:counter(n);background:none;color:var(--gold-hi);font-family:var(--mono);font-size:11px;
  top:.1em;left:0;width:auto;height:auto;border-radius:0}
blockquote{margin:26px 0;padding:18px 24px;border-left:2px solid var(--gold);background:rgba(108,92,231,.06);
  border-radius:0 10px 10px 0}
blockquote p{margin:0;color:var(--ink);font-family:var(--serif);font-style:italic;font-size:18.5px}
table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;display:block;overflow-x:auto}
th,td{border:1px solid var(--line);padding:12px 14px;text-align:left;color:var(--muted)}
th{color:var(--ink);font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;font-weight:400}

.faq{border-top:1px solid var(--line);margin-top:10px}
.faq details{border-bottom:1px solid var(--line);padding:18px 0}
.faq summary{cursor:pointer;font-family:var(--serif);font-size:18.5px;font-weight:540;letter-spacing:-.01em;list-style:none;
  display:flex;justify-content:space-between;gap:16px;align-items:center;color:var(--ink)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--gold-hi);font-family:var(--sans);font-size:22px;line-height:1;flex:0 0 auto}
.faq details[open] summary::after{content:"–"}
.faq details p{margin:14px 0 0}

.cierre{margin:clamp(52px,9vh,92px) 0 0;padding:clamp(28px,5vw,46px);border:1px solid var(--line);border-radius:18px;
  background:radial-gradient(ellipse 80% 120% at 50% 0%,rgba(108,92,231,.14),transparent 70%);text-align:center}
.cierre h2{margin-top:0}
.boton{display:inline-flex;align-items:center;gap:10px;margin-top:8px;padding:14px 26px;border-radius:999px;
  background:var(--ink);color:var(--void);font-weight:600;font-size:15px;transition:transform .3s,box-shadow .3s}
.boton:hover{transform:translateY(-2px);box-shadow:0 14px 40px rgba(143,167,255,.22)}
.micro{font-size:13.5px;color:var(--faint);margin:14px 0 0}

footer{margin-top:clamp(56px,10vh,100px);border-top:1px solid var(--line);padding:34px 0 54px;color:var(--faint);font-size:13px;
  position:relative;z-index:2}
footer .wrap-wide{display:flex;flex-wrap:wrap;gap:14px 26px;align-items:center;justify-content:space-between}
footer nav{display:flex;flex-wrap:wrap;gap:6px 20px}
footer a{color:var(--muted);transition:color .3s}
footer a:hover{color:var(--ink)}

@media (prefers-reduced-motion:reduce){
  .post{opacity:1;transform:none;filter:none;transition:none}
  #portada .marca,#portada .sub,#pista{opacity:1;transition:none}
  .boton:hover{transform:none}
}