/* =========================================================
   DESIGN TOKENS
   ========================================================= */
:root{
  --bg:        #ffffff;
  --bg-soft:   #f7f6f3;
  --ink:       #16150f;
  --ink-soft:  #555248;
  --ink-faint: #8a877c;
  --line:      #e7e4dc;
  --accent:    #b3471f;
  --accent-soft:#f3e7e1;
  --max: 1080px;
  --serif: 'Fraunces', Georgia, 'Times New Roman', serif;
  --sans:  'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;scroll-padding-top:5.5rem;-webkit-text-size-adjust:100%;}
body{
  font-family:var(--sans);
  background:var(--bg);
  color:var(--ink);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;}
h1,h2,h3{font-family:var(--serif);font-weight:500;line-height:1.1;letter-spacing:-0.01em;}
.wrap{max-width:var(--max);margin:0 auto;padding:0 1.5rem;}
.eyebrow{
  font-size:.75rem;font-weight:600;text-transform:uppercase;
  letter-spacing:.18em;color:var(--accent);
}

/* =========================================================
   NAV
   ========================================================= */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  background:rgba(255,255,255,.82);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color .3s ease;
}
.nav.scrolled{border-bottom-color:var(--line);}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:4.5rem;}
.brand{display:flex;align-items:center;}
.brand img{height:2.1rem;width:auto;display:block;}
.nav-links{display:flex;gap:1.5rem;align-items:center;}
.nav-links a{font-size:.9rem;color:var(--ink-soft);transition:color .2s;}
.nav-links a:hover{color:var(--ink);}
.nav-links a.active{color:var(--ink);font-weight:600;}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:.4rem;}
.nav-toggle span{width:22px;height:2px;background:var(--ink);border-radius:2px;transition:.3s;}

/* =========================================================
   HERO (home — centrado)
   ========================================================= */
.hero{padding:8.5rem 0 5.5rem;text-align:center;}
.hero-inner{max-width:720px;margin:0 auto;display:flex;flex-direction:column;align-items:center;}
.avatar{
  width:clamp(120px,17vw,158px);aspect-ratio:1;border-radius:50%;
  overflow:hidden;border:1px solid var(--line);background:var(--bg-soft);
  box-shadow:0 14px 36px rgba(0,0,0,.10);margin-bottom:1.7rem;
}
.avatar img{width:100%;height:100%;object-fit:cover;object-position:top center;}
.hero h1{font-size:clamp(2.3rem,5vw,3.8rem);line-height:1.06;margin:1.1rem 0 1.2rem;}
.hero h1 em{font-style:italic;color:var(--accent);}
.hero h1 strong,.page-hero h1 strong{font-weight:700;}
.hero-lead{font-size:1.15rem;color:var(--ink-soft);max-width:48ch;margin:0 auto 2rem;}
.hero-cta{display:flex;gap:.9rem;flex-wrap:wrap;justify-content:center;}
.hero-stats{margin-top:1.7rem;font-size:.9rem;color:var(--ink-faint);letter-spacing:.02em;}
.hero-stats b{color:var(--ink);font-weight:600;}

.btn{
  display:inline-flex;align-items:center;gap:.5rem;
  font-size:.95rem;font-weight:500;
  padding:.8rem 1.5rem;border-radius:999px;
  transition:all .25s ease;cursor:pointer;border:1px solid var(--ink);
}
.btn-solid{background:var(--ink);color:#fff;}
.btn-solid:hover{background:var(--accent);border-color:var(--accent);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--ink);}

/* =========================================================
   PAGE HERO (subpáginas)
   ========================================================= */
.page-hero{padding:9rem 0 1.5rem;border-bottom:1px solid var(--line);}
.page-hero .eyebrow{display:block;margin-bottom:.7rem;}
.page-hero h1{font-size:clamp(2.2rem,4.5vw,3.4rem);line-height:1.06;margin-bottom:1rem;}
.page-hero h1 em{font-style:italic;color:var(--accent);}
.page-hero p{color:var(--ink-soft);font-size:1.12rem;max-width:56ch;}

.page-hero.has-img{padding-bottom:3.5rem;}
.page-hero .split{display:grid;grid-template-columns:1.05fr .95fr;gap:3.5rem;align-items:center;}
.page-hero .hero-img{
  margin:0;border-radius:18px;overflow:hidden;background:#f3efe6;
  border:1px solid var(--line);box-shadow:0 14px 36px rgba(0,0,0,.08);
}
.page-hero .hero-img img{width:100%;height:auto;display:block;}

/* =========================================================
   SECCIÓN BASE
   ========================================================= */
section{padding:6rem 0;}
.sec-head{max-width:46ch;margin-bottom:3rem;}
.sec-head h2{font-size:clamp(1.9rem,3.5vw,2.7rem);margin:.6rem 0 .8rem;}
.sec-head p{color:var(--ink-soft);font-size:1.05rem;}
.alt{background:var(--bg-soft);}

/* ===== ACERCA DE ===== */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:3.5rem;align-items:start;}
.about-text p{color:var(--ink-soft);margin-bottom:1.2rem;font-size:1.08rem;}
.about-text p strong{color:var(--ink);font-weight:600;}
.facts{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem 1.5rem;}
.fact{border-top:2px solid var(--ink);padding-top:.8rem;}
.fact b{font-family:var(--serif);font-size:1.8rem;font-weight:600;display:block;}
.fact span{font-size:.85rem;color:var(--ink-soft);}
.edu{margin-top:2.5rem;}
.edu ul{margin-top:1rem;display:flex;flex-direction:column;gap:1.1rem;}
.edu li{display:flex;gap:.85rem;align-items:center;}
.edu-logo{width:46px;height:46px;object-fit:contain;border-radius:8px;background:#fff;border:1px solid var(--line);flex-shrink:0;overflow:hidden;}
.edu li b{display:block;font-size:.98rem;font-weight:600;color:var(--ink);}
.edu li span{font-size:.85rem;color:var(--ink-soft);}

/* ===== BIO (una columna, ancho de lectura cómodo) ===== */
.bio-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:4rem;align-items:start;}
.bio-photo{
  margin:0;aspect-ratio:4/5;border-radius:24px;overflow:hidden;
  border:1px solid var(--line);background:var(--bg-soft);
  box-shadow:0 14px 36px rgba(0,0,0,.10);position:sticky;top:6.5rem;
}
.bio-photo img{width:100%;height:100%;object-fit:cover;object-position:top center;display:block;}
.bio{max-width:64ch;}
.bio p{color:var(--ink-soft);margin-bottom:1.3rem;font-size:1.1rem;}
.bio p:last-child{margin-bottom:0;}
.bio p strong{color:var(--ink);font-weight:600;}

/* ===== RECONOCIMIENTOS (franja) ===== */
.creds{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem;}
.cred{
  text-align:center;padding:1.7rem 1.3rem;
  border:1px solid var(--line);border-radius:14px;background:#fff;
}
.cred b{display:block;font-family:var(--serif);font-size:1.75rem;font-weight:600;line-height:1.1;margin-bottom:.4rem;}
.cred span{font-size:.9rem;color:var(--ink-soft);display:block;}

/* ===== FORMACIÓN (grid horizontal) ===== */
.edu-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.1rem;}
.edu-item{
  display:flex;gap:1rem;align-items:center;
  padding:1.05rem 1.25rem;background:#fff;
  border:1px solid var(--line);border-radius:12px;
}
.edu-item:last-child:nth-child(odd){grid-column:1/-1;}
.edu-item b{display:block;font-size:.98rem;font-weight:600;color:var(--ink);line-height:1.3;}
.edu-item span{font-size:.85rem;color:var(--ink-soft);}

/* ===== SKILLS / HERRAMIENTAS ===== */
.skills-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:1.6rem;margin-top:2.5rem;}
.skill-card{grid-column:span 2;}
.skill-card:nth-child(n+4){grid-column:span 3;}
.skill-card{
  border:1px solid var(--line);border-radius:16px;padding:1.5rem 1.6rem;
  background:#fff;transition:transform .25s ease, border-color .25s ease;
  display:flex;flex-direction:column;
}
.skill-card:hover{transform:translateY(-4px);border-color:var(--ink);}
.skill-card h3{font-size:1.1rem;margin-bottom:.5rem;font-family:var(--serif);}
.skill-card p{font-size:.92rem;color:var(--ink-soft);margin-bottom:.8rem;}
.skill-tags{display:flex;flex-wrap:wrap;gap:.45rem;margin-top:auto;padding-top:.6rem;}
.tag{
  font-size:.78rem;font-weight:500;
  background:var(--bg-soft);border:1px solid var(--line);
  border-radius:999px;padding:.3rem .8rem;color:var(--ink-soft);
  white-space:nowrap;
}
.tag.hi{background:var(--accent-soft);border-color:#d9775a;color:#8c3312;}

/* ===== TEMAS ===== */
.topics{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem;}
.topic{
  border:1px solid var(--line);border-radius:16px;padding:0;overflow:hidden;
  background:#fff;transition:transform .25s ease, border-color .25s ease;
}
.topic:hover{transform:translateY(-4px);border-color:var(--ink);}
.topic{display:flex;flex-direction:column;}
.topic-img{aspect-ratio:4/3;background:#f3efe6;border-bottom:1px solid var(--line);}
.topic-img img{width:100%;height:100%;object-fit:cover;display:block;}
.topic h3{font-size:1.25rem;margin-bottom:.5rem;padding:1.4rem 1.6rem 0;}
.topic p{font-size:.95rem;color:var(--ink-soft);padding:0 1.6rem 1.7rem;}

/* Tarjetas compactas (fila) dentro de la columna de bio */
.about-cards{display:flex;flex-direction:column;gap:.9rem;margin-top:1.75rem;}
.about-cards .eyebrow{margin-bottom:.35rem;}
.about-cards .topic{display:flex;gap:.9rem;align-items:center;padding:1.1rem 1.25rem;}
.about-cards .topic .ic{
  width:42px;height:42px;flex-shrink:0;margin:0;line-height:1;
  display:flex;align-items:center;justify-content:center;font-size:1.25rem;
  background:var(--bg-soft);border:1px solid var(--line);border-radius:8px;
}
.about-cards .topic h3{font-size:1.02rem;margin-bottom:.2rem;}
.about-cards .topic p{font-size:.88rem;}

/* ===== PODCAST ===== */
.pod{display:grid;grid-template-columns:.9fr 1.1fr;gap:3.5rem;align-items:center;}
.pod-cover{
  aspect-ratio:1;border-radius:18px;background:var(--ink);color:#fff;
  display:flex;flex-direction:column;justify-content:center;align-items:center;
  text-align:center;padding:2rem;
}
.pod-cover .eyebrow{color:#e8a98f;}
.pod-cover h3{font-size:2rem;color:#fff;margin-top:.6rem;}
.pod-cover .wave{margin-top:1.5rem;display:flex;gap:4px;align-items:flex-end;height:34px;}
.pod-cover .wave i{width:4px;background:#e8a98f;border-radius:2px;animation:wv 1.1s ease-in-out infinite;}
@keyframes wv{0%,100%{height:8px}50%{height:34px}}
.pod-platforms{display:flex;gap:.7rem;flex-wrap:wrap;margin-top:1.5rem;}
.chip{font-size:.85rem;border:1px solid var(--line);border-radius:999px;padding:.45rem 1rem;color:var(--ink-soft);transition:.2s;}
.chip:hover{border-color:var(--ink);color:var(--ink);}

/* ===== ESCRITOS ===== */
.posts{display:grid;grid-template-columns:repeat(3,1fr);gap:1.6rem;}
.post{display:flex;flex-direction:column;}
.post-img{display:block;aspect-ratio:16/9;border-radius:14px;overflow:hidden;border:1px solid var(--line);background:#f3efe6;margin-bottom:1.1rem;}
.post-img img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .4s ease;}
.post:hover .post-img img{transform:scale(1.03);}
.post .meta{font-size:.78rem;color:var(--ink-faint);text-transform:uppercase;letter-spacing:.1em;}
.post h3{font-size:1.3rem;margin:.5rem 0 .6rem;line-height:1.2;}
.post p{font-size:.95rem;color:var(--ink-soft);}
.post h3 a:hover{color:var(--accent);}
.post a.more{display:inline-block;margin-top:auto;padding-top:.8rem;font-size:.85rem;color:var(--accent);font-weight:600;}

/* ===== CONTACTO / CTA ===== */
.contact{text-align:center;}
.contact h2{font-size:clamp(2rem,4vw,3rem);max-width:18ch;margin:.6rem auto 1.2rem;}
.contact p{color:var(--ink-soft);max-width:42ch;margin:0 auto 2.2rem;font-size:1.05rem;}
.socials{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap;}

/* ===== FORMULARIO DE CONTACTO ===== */
.contact-form{max-width:540px;margin:0 auto;display:flex;flex-direction:column;gap:1rem;text-align:left;}
.form-row{display:flex;gap:1rem;}
.contact-form input,.contact-form textarea{
  width:100%;font-family:inherit;font-size:.98rem;color:var(--ink);
  background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:.85rem 1rem;transition:border-color .2s;
}
.contact-form input::placeholder,.contact-form textarea::placeholder{color:var(--ink-faint);}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--ink);}
.contact-form textarea{resize:vertical;min-height:120px;}
.contact-form button{align-self:center;margin-top:.4rem;}
.contact-form[hidden]{display:none;}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0;pointer-events:none;}
.form-error{text-align:center;color:#8c3312;font-size:.95rem;margin:.2rem 0 0;}
.form-error a{text-decoration:underline;font-weight:600;}
.form-done{
  max-width:540px;margin:0 auto;text-align:center;padding:2.4rem 1.8rem;
  border:1px solid var(--line);border-radius:16px;background:var(--bg-soft);
}
.form-done:focus{outline:none;}
.form-done h2{font-size:1.7rem;margin-bottom:.6rem;}
.form-done p{color:var(--ink-soft);margin:0 auto 1.4rem;max-width:36ch;}
@media(max-width:560px){.form-row{flex-direction:column;}}

/* ===== LIBROS ===== */
.books{display:grid;grid-template-columns:repeat(3,1fr);gap:1.8rem;}
.book{text-align:left;}
.book-cover{
  aspect-ratio:3/4;border-radius:10px;overflow:hidden;background:var(--bg-soft);
  box-shadow:0 14px 34px rgba(0,0,0,.12);margin-bottom:1rem;
  transition:transform .25s ease, box-shadow .25s ease;
}
.book:hover .book-cover{transform:translateY(-5px);box-shadow:0 20px 44px rgba(0,0,0,.16);}
.book-cover img{width:100%;height:100%;object-fit:cover;display:block;}
.book h4{font-family:var(--serif);font-weight:600;font-size:1.05rem;margin-bottom:.2rem;}
.book-sub{font-size:.88rem;color:var(--ink-soft);margin:0 0 .5rem;}
.book-status{font-size:.72rem;text-transform:uppercase;letter-spacing:.12em;color:var(--accent);font-weight:600;}

/* ===== CURSO DE IA (banda destacada) ===== */
.course{background:var(--ink);color:#fff;}
.course-inner{display:grid;grid-template-columns:1.15fr .85fr;gap:3.5rem;align-items:stretch;}
.course .eyebrow{color:#e8a98f;}
.course h1,.course h2{color:#fff;font-size:clamp(1.9rem,3.5vw,2.7rem);margin:.6rem 0 1rem;}
.course p{color:rgba(255,255,255,.75);font-size:1.05rem;margin-bottom:1.4rem;max-width:46ch;}
.course-points{display:flex;flex-direction:column;gap:.6rem;margin-bottom:1.8rem;}
.course-points li{color:rgba(255,255,255,.92);font-size:.98rem;}
.course .btn-solid{background:#fff;color:var(--ink);border-color:#fff;}
.course .btn-solid:hover{background:var(--accent);color:#fff;border-color:var(--accent);}
.course-note{font-size:.8rem;color:rgba(255,255,255,.55);margin:.9rem 0 0;}
.course-card{
  aspect-ratio:4/3;border-radius:18px;border:1px solid rgba(255,255,255,.2);
  background:linear-gradient(135deg, rgba(232,169,143,.16), rgba(255,255,255,.04));
  display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:2rem;
}
.course-card .big{font-family:var(--serif);font-size:3.2rem;line-height:1;color:#fff;}
.course-card .lbl{color:#e8a98f;font-size:.8rem;text-transform:uppercase;letter-spacing:.15em;margin-top:.7rem;}

.course-card.ask{
  aspect-ratio:auto;align-items:flex-start;justify-content:center;text-align:left;
  gap:1rem;padding:2.4rem 2.4rem;
}
.ask-label{font-size:.72rem;text-transform:uppercase;letter-spacing:.16em;color:#e8a98f;font-weight:600;}
.course .ask .ask-prompt{
  font-family:var(--serif);font-size:clamp(1.4rem,2.6vw,1.9rem);line-height:1.25;
  color:#fff;margin:0;max-width:none;letter-spacing:-.01em;
}
.course .ask .ph{white-space:nowrap;color:#e8a98f;}
.course .ask .ask-note{font-size:.92rem;color:rgba(255,255,255,.65);margin:0;max-width:none;}

/* ===== TESIS (Cómo pienso) ===== */
.theses{display:grid;grid-template-columns:repeat(2,1fr);gap:1.4rem;}
.thesis{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:2rem 2.2rem;display:flex;flex-direction:column;gap:1.1rem;
  transition:transform .25s ease, border-color .25s ease;
}
.thesis:hover{transform:translateY(-4px);border-color:var(--ink);}
.thesis .n{font-family:var(--serif);font-size:1rem;color:var(--accent);letter-spacing:.08em;}
.thesis p{
  font-family:var(--serif);font-size:clamp(1.3rem,2.3vw,1.7rem);line-height:1.25;
  color:var(--ink);letter-spacing:-.01em;
}

/* ===== ARTÍCULOS (/ideas/...) ===== */
.page-hero .eyebrow{text-decoration:none;}
.page-hero a.eyebrow:hover{opacity:.75;}
.page-hero .art-meta{font-size:.85rem;color:var(--ink-faint);margin:1.1rem 0 0;letter-spacing:.01em;}
.article{max-width:64ch;}
.article p{color:var(--ink-soft);font-size:1.1rem;margin-bottom:1.3rem;}
.article p strong,.article li strong{color:var(--ink);font-weight:600;}
.article h2{font-size:clamp(1.4rem,2.4vw,1.8rem);margin:2.6rem 0 1rem;}
.article ul,.article ol{margin:0 0 1.5rem 1.3rem;color:var(--ink-soft);font-size:1.08rem;}
.article ul{list-style:disc;}
.article ol{list-style:decimal;}
.article li{margin-bottom:.65rem;padding-left:.25rem;}
.more-ideas{max-width:64ch;margin-top:3.5rem;padding-top:1.6rem;border-top:1px solid var(--line);}
.more-ideas ul{margin-top:.8rem;display:flex;flex-direction:column;gap:.55rem;}
.more-ideas a{font-family:var(--serif);font-size:1.15rem;color:var(--ink);}
.more-ideas a:hover{color:var(--accent);}
.theses-cta{margin-top:2.2rem;text-align:center;}

/* ===== FOOTER ===== */
footer{border-top:1px solid var(--line);padding:2.5rem 0;background:var(--bg-soft);}
.foot-in{display:flex;justify-content:space-between;align-items:center;gap:1rem;flex-wrap:wrap;}
.foot-in p{font-size:.85rem;color:var(--ink-faint);}
.foot-links{display:flex;gap:1.5rem;flex-wrap:wrap;}
.foot-links a{font-size:.85rem;color:var(--ink-soft);}
.foot-links a:hover{color:var(--ink);}
.foot-social{display:flex;gap:1.1rem;align-items:center;flex-wrap:wrap;}
.foot-social a{color:var(--ink-faint);display:flex;transition:color .2s, transform .2s;}
.foot-social a:hover{color:var(--accent);transform:translateY(-2px);}

/* ===== WHATSAPP FLOTANTE ===== */
.wa-float{
  position:fixed;right:18px;bottom:calc(18px + env(safe-area-inset-bottom, 0px));z-index:60;
  width:58px;height:58px;border-radius:50%;background:#25D366;
  display:grid;place-items:center;
  box-shadow:0 10px 30px -8px rgba(0,0,0,.35);
  transition:transform .2s ease, box-shadow .2s ease;
}
.wa-float:hover{transform:scale(1.07);box-shadow:0 14px 34px -8px rgba(0,0,0,.45);}
.wa-float:focus-visible{outline:3px solid var(--ink);outline-offset:3px;}
.wa-float svg{width:30px;height:30px;fill:#fff;}
.wa-alt{margin-top:1.6rem;text-align:center;font-size:.95rem;color:var(--ink-soft);}
.wa-alt a{color:var(--ink);font-weight:600;border-bottom:1px solid var(--line);transition:border-color .2s,color .2s;}
.wa-alt a:hover{color:var(--accent);border-color:var(--accent);}

/* =========================================================
   REVELADO AL SCROLL
   ========================================================= */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease, transform .7s ease;}
.reveal.in{opacity:1;transform:none;}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media(max-width:980px){
  .nav-links{
    position:fixed;inset:4.5rem 0 auto 0;background:#fff;flex-direction:column;
    gap:0;padding:1rem 1.5rem 1.5rem;border-bottom:1px solid var(--line);
    transform:translateY(-130%);transition:transform .3s ease;
  }
  .nav-links.open{transform:none;}
  .nav-links a{padding:.8rem 0;width:100%;border-bottom:1px solid var(--line);}
  .nav-toggle{display:flex;}
  .about-grid,.pod,.course-inner{grid-template-columns:1fr;gap:2.5rem;}
  .page-hero .split{grid-template-columns:1fr;gap:2rem;}
  .bio-grid{grid-template-columns:1fr;gap:2.2rem;}
  .bio-photo{position:static;max-width:300px;width:100%;margin:0 auto;}
  .page-hero.has-img{padding-bottom:2.5rem;}
  .topics,.posts,.skills-grid,.books,.creds,.edu-grid,.theses{grid-template-columns:1fr;}
  .skill-card,.skill-card:nth-child(n+4),.edu-item:last-child:nth-child(odd){grid-column:auto;}
}
@media(min-width:981px) and (max-width:1024px){
  .topics,.posts,.books{grid-template-columns:repeat(2,1fr);}
}