:root{--bg:#fbfaf7;--ink:#16181d;--muted:#5b6270;--line:#e5e0d6;--accent:#0f766e;--card:#ffffff;--band:#f2efe8;
  --serif:Georgia,"Times New Roman",serif;--sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,Arial,sans-serif}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
section[id]{scroll-margin-top:72px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--accent)}
code{font-size:.9em;background:var(--band);padding:1px 5px;border-radius:4px}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px}

/* Cabecera */
header.top{position:sticky;top:0;z-index:10;background:rgba(251,250,247,.86);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
header .in{display:flex;align-items:center;gap:22px;height:60px}
.name{font-weight:700;color:var(--ink);text-decoration:none;margin-right:auto}
nav{display:flex;gap:22px}
nav a{color:var(--muted);text-decoration:none;font-size:14px}
nav a:hover{color:var(--ink)}
.lang{font-size:12px;font-weight:700;letter-spacing:.04em;color:var(--muted);text-decoration:none;border:1px solid var(--line);border-radius:6px;padding:3px 8px}
.lang:hover{color:var(--ink);border-color:var(--muted)}

/* Portada */
.hero{padding:88px 24px 64px}
.eyebrow{font-size:12.5px;letter-spacing:.09em;text-transform:uppercase;color:var(--accent);font-weight:700;margin:0}
h1,h2{font-family:var(--serif);font-weight:400;letter-spacing:-.01em}
h1{font-size:52px;line-height:1.08;margin:14px 0 22px;max-width:820px}
h1 em{color:var(--accent)}
.lead{font-size:18px;color:var(--muted);max-width:640px;margin:0}
.facts,.results{display:flex;flex-wrap:wrap;gap:16px 40px;margin:34px 0 0}
.facts div,.results div{min-width:0}
dt{font-size:24px;font-weight:600;color:var(--ink);line-height:1.2}
dd{margin:2px 0 0;font-size:13.5px;color:var(--muted)}

/* Casos */
.case{border-top:1px solid var(--line);padding:64px 0}
.case-head{max-width:720px;margin-bottom:32px}
.n{font-size:13px;color:var(--muted);margin:0}
.case h2{font-size:36px;line-height:1.15;margin:8px 0 12px}
.sum{color:var(--muted);font-size:17px;margin:0}
.tags{display:flex;flex-wrap:wrap;gap:6px;list-style:none;padding:0;margin:18px 0 0}
.tags li{font-size:12.5px;border:1px solid var(--line);background:var(--card);border-radius:999px;padding:3px 11px}
h3{font-size:16px;margin:0 0 8px}
p{margin:0 0 14px}
.cols{display:grid;grid-template-columns:1fr 1.35fr;gap:48px;margin-top:48px;align-items:start}
.cols > div > h3:not(:first-child){margin-top:28px}
.why{list-style:none;padding:0;margin:0;display:grid;gap:14px}
.why li{padding-left:16px;border-left:2px solid var(--line);color:var(--muted);font-size:15px}
.why b{color:var(--ink);font-weight:600}
.note{margin-top:24px;font-size:14px;color:var(--muted);background:var(--band);border-radius:10px;padding:14px 16px}
.results dt{font-size:22px}

/* Capturas */
.shot{margin:0;border-radius:12px;overflow:hidden;border:1px solid var(--line);box-shadow:0 30px 60px -32px rgba(20,24,30,.38)}
.shot.dark{background:#0b1220}
.shot.light{background:#fff}
.shot img{display:block;width:100%;height:auto}
.shot figcaption{font-size:12.5px;color:var(--muted);padding:10px 14px;border-top:1px solid var(--line);background:var(--card)}
.shot.phone{max-width:300px;border-radius:24px;justify-self:center}
.shot.narrow{max-width:360px;justify-self:center}

/* IA */
.band{background:var(--band);border-radius:20px;padding:56px 48px;margin-top:24px}
.band h2{font-size:34px;margin:10px 0 0}
.three{grid-template-columns:repeat(3,1fr);gap:32px;margin-top:32px}
.three p{color:var(--muted);font-size:15px}
.aside{margin:24px 0 0;font-family:var(--serif);font-style:italic;color:var(--muted)}

/* Sobre mí y contacto */
.about{display:grid;grid-template-columns:1fr 1.6fr;gap:48px;padding-top:88px;padding-bottom:40px}
.about h2{font-size:34px;margin:10px 0 0;line-height:1.15}
.about p{color:var(--muted)}
.skills{font-size:14.5px}
.skills b{color:var(--ink)}
.contact{padding-top:64px;padding-bottom:72px;border-top:1px solid var(--line);margin-top:40px}
.contact h2{font-size:52px;margin:0 0 10px}
.mail{font-size:22px;font-weight:600;text-decoration:none;border-bottom:2px solid currentColor;word-break:break-all}
.small{font-size:14px;color:var(--muted)}
footer{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--muted);padding-top:20px;padding-bottom:32px;border-top:1px solid var(--line)}
footer a{color:var(--muted)}

@media (max-width:860px){
  .cols,.three,.about{grid-template-columns:1fr;gap:28px}
  .band{padding:40px 24px;border-radius:16px}
}
@media (max-width:640px){
  .wrap{padding:0 16px}
  nav{display:none}
  .hero{padding:48px 16px 40px}
  h1{font-size:34px}
  .lead{font-size:16.5px}
  .case{padding:48px 0}
  .case h2{font-size:28px}
  .band h2,.about h2{font-size:28px}
  .contact h2{font-size:38px}
  .mail{font-size:18px}
  .shot.phone{max-width:240px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* Líneas de separación alineadas con el contenido, no con el relleno */
.contact,footer{border-top:none;position:relative}
.contact:before,footer:before{content:"";position:absolute;top:0;left:24px;right:24px;border-top:1px solid var(--line)}
@media (max-width:640px){.contact:before,footer:before{left:16px;right:16px}}

/* Caso 3: marcadores sobre capturas e hipótesis numeradas */
.marked{position:relative}
.mk{position:absolute;transform:translate(-50%,-50%);width:26px;height:26px;border-radius:50%;background:#c2410c;color:#fff;
  font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;box-shadow:0 0 0 3px rgba(255,255,255,.9)}
.hyp{list-style:none;padding:0;margin:48px 0 0;display:grid;grid-template-columns:repeat(2,1fr);gap:20px;counter-reset:h}
.hyp li{counter-increment:h;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px 24px 10px}
.hyp h3:before{content:counter(h);display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:50%;
  background:#c2410c;color:#fff;font-size:12.5px;margin-right:10px;vertical-align:2px}
.hyp p{font-size:14.5px;color:var(--muted)}
.hyp b{color:var(--ink);font-weight:600}
@media (max-width:860px){.hyp{grid-template-columns:1fr}}
@media (max-width:640px){.mk{width:22px;height:22px;font-size:11.5px}}
.pin{position:relative}