:root{
  /* claro */
  --paper:#f0f0ed;
  --white:#fbfbfa;
  --fg:#0c0e11;
  --body:#3a3e44;
  --mut:#6e737a;
  --line:#dcdcd7;
  --line2:#d2d2cd;
  --acc:#c3341b;
  /* oscuro (Claudio) */
  --ink:#14161a;
  --ink-2:#191c21;
  --ink-fg:#f2f2f0;
  --ink-body:#b9bcc0;
  --ink-mut:#84888e;
  --ink-line:rgba(255,255,255,.10);
  --ink-line2:rgba(255,255,255,.17);
  --acc-d:#e0563a;
  /* SelloHomes */
  --sh-navy:#0e2038;
  --sh-navy-2:#16304e;
  --sh-gold:#c39c60;
  --sh-bone:#ece4d6;
  --maxw:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  background:var(--paper);color:var(--body);
  font-size:1.0625rem;line-height:1.72;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
::selection{background:var(--acc);color:#fff}
:focus-visible{outline:2px solid var(--acc);outline-offset:3px}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 clamp(20px,5vw,48px)}
.narrow{max-width:760px}
section{padding:clamp(68px,8.5vw,126px) 0;scroll-margin-top:64px}

h1,h2,h3,h4,.serif{font-family:'Fraunces',Georgia,serif;color:var(--fg);font-weight:400}
h1{font-size:clamp(2.2rem,5.2vw,3.6rem);line-height:1.06;letter-spacing:-.022em}
h2{font-size:clamp(1.8rem,3.7vw,2.65rem);line-height:1.14;letter-spacing:-.016em;max-width:20ch}
h3{font-size:1.2rem;line-height:1.3}
p{max-width:66ch}
p + p{margin-top:1.15em}

/* zonas oscuras */
.dark{background:var(--ink);color:var(--ink-body)}
.dark h1,.dark h2,.dark h3{color:var(--ink-fg)}
.dark p{color:var(--ink-body)}
.dark .kicker{color:var(--acc-d)}
.dark .kicker .n{color:var(--ink-mut)}
.dark .kicker::after{background:var(--ink-line2)}

.alt{background:var(--white)}

/* kicker */
.kicker{
  display:flex;align-items:center;gap:14px;
  font-size:.71rem;font-weight:600;letter-spacing:.19em;text-transform:uppercase;
  color:var(--acc);margin-bottom:26px;
}
.kicker .n{font-family:'Fraunces',serif;font-weight:500;color:var(--mut);letter-spacing:.05em}
.kicker::after{content:"";flex:1;height:1px;background:var(--line2);min-width:24px}

/* header */
header{
  position:sticky;top:0;z-index:60;
  background:rgba(20,22,26,.9);backdrop-filter:saturate(1.3) blur(10px);
  border-bottom:1px solid var(--ink-line);
}
header .wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-top:15px;padding-bottom:15px;position:relative}
.brand{font-family:'Fraunces',serif;font-size:1.08rem;font-weight:500;letter-spacing:.015em;color:var(--ink-fg)}
.nav{display:flex;align-items:center;gap:30px;font-size:.9rem;color:var(--ink-mut)}
.nav a{position:relative;padding:2px 0}
.nav a::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:1px;background:var(--acc-d);transform:scaleX(0);transition:transform .22s ease}
.nav a:hover{color:var(--ink-fg)}
.nav a:hover::after{transform:scaleX(1)}
.menu-btn{display:none}

/* botones */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  padding:14px 26px;border-radius:2px;font-size:.94rem;font-weight:500;
  background:var(--fg);color:var(--white);border:1px solid var(--fg);
  transition:background .2s ease,color .2s ease;
}
.btn:hover{background:transparent;color:var(--fg)}
.btn-ghost{background:transparent;color:var(--fg);border-color:var(--line2)}
.btn-ghost:hover{background:var(--fg);color:var(--white)}
.dark .btn{background:var(--ink-fg);color:var(--ink);border-color:var(--ink-fg)}
.dark .btn:hover{background:transparent;color:var(--ink-fg)}
.dark .btn-ghost{background:transparent;color:var(--ink-fg);border-color:var(--ink-line2)}
.dark .btn-ghost:hover{background:var(--ink-fg);color:var(--ink)}
.btn-gold{background:var(--sh-gold);border-color:var(--sh-gold);color:#101f34}
.btn-gold:hover{background:transparent;color:var(--sh-gold)}
.cta-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px}

.tlink{
  display:inline-flex;align-items:center;gap:7px;font-size:.93rem;font-weight:500;color:var(--acc);
  border-bottom:1px solid currentColor;padding-bottom:2px;
}
.tlink:hover{color:var(--fg)}
.dark .tlink{color:var(--acc-d)}
.dark .tlink:hover{color:var(--ink-fg)}

/* hero */
.hero{padding-top:clamp(54px,7vw,90px);padding-bottom:clamp(60px,7.5vw,104px)}
.hero-grid{display:grid;gap:clamp(38px,5vw,64px);align-items:center}
@media(min-width:900px){.hero-grid{grid-template-columns:1.12fr .88fr}}
.eyebrow{font-size:.72rem;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:var(--acc-d);margin-bottom:24px}
.hero h1{margin-bottom:26px;max-width:15ch}
.hero .lead{font-size:clamp(1.06rem,1.5vw,1.18rem);max-width:52ch;line-height:1.66}
.portrait{position:relative}
.portrait img{width:100%;height:auto;aspect-ratio:4/5;object-fit:cover;object-position:center 26%}
.portrait::after{content:"";position:absolute;inset:16px -16px -16px 16px;border:1px solid var(--ink-line2);z-index:-1}
.proof{display:flex;flex-wrap:wrap;margin-top:50px;border-top:1px solid var(--ink-line2)}
.proof div{padding:22px 30px 0 0;margin-right:30px;border-right:1px solid var(--ink-line2);flex:1 1 180px}
.proof div:last-child{border-right:0;margin-right:0}
.proof .num{font-family:'Fraunces',serif;font-size:2.05rem;line-height:1;color:var(--ink-fg);margin-bottom:7px;display:block}
.proof .lbl{font-size:.86rem;color:var(--ink-mut);line-height:1.45;display:block;max-width:22ch}

/* tesis */
.tesis .body{margin-top:34px}
.tesis .body p{font-size:1.09rem}
.pull{
  font-family:'Fraunces',serif;font-size:clamp(1.4rem,2.6vw,1.9rem);line-height:1.34;
  color:var(--fg);margin:42px 0;padding-left:28px;border-left:2px solid var(--acc);max-width:24ch;
}

/* principios */
.principios{display:grid;gap:clamp(30px,4vw,48px);margin-top:46px}
@media(min-width:760px){.principios{grid-template-columns:repeat(3,1fr)}}
.principio{border-top:2px solid var(--fg);padding-top:20px}
.principio h3{margin-bottom:12px}
.principio p{font-size:.97rem}

/* SelloHomes */
.sello{background:linear-gradient(155deg,var(--sh-navy) 0%,var(--sh-navy-2) 100%);color:var(--sh-bone)}
.sello h2,.sello h3{color:#fbf7ef}
.sello .kicker{color:var(--sh-gold)}
.sello .kicker .n{color:rgba(236,228,214,.55)}
.sello .kicker::after{background:rgba(236,228,214,.22)}
.sello p{color:rgba(236,228,214,.85)}
.sello-grid{display:grid;gap:clamp(34px,4.5vw,60px);align-items:start}
@media(min-width:920px){.sello-grid{grid-template-columns:1.08fr .92fr}}
.sello .seal{
  display:inline-flex;align-items:center;gap:11px;font-size:.73rem;letter-spacing:.17em;
  text-transform:uppercase;font-weight:600;color:var(--sh-gold);
  border:1px solid rgba(195,156,96,.4);padding:8px 16px;margin-bottom:26px;
}
.sello-points{list-style:none;margin-top:8px;border-top:1px solid rgba(236,228,214,.16)}
.sello-points li{padding:15px 0;border-bottom:1px solid rgba(236,228,214,.16);font-size:.95rem;display:flex;gap:14px}
.sello-points b{color:var(--sh-gold);font-weight:500;font-family:'Fraunces',serif;font-size:.9rem;min-width:2.2em}
.sello .closing{
  font-family:'Fraunces',serif;font-size:1.16rem;line-height:1.5;color:#fbf7ef;
  margin-top:38px;padding-top:26px;border-top:1px solid rgba(195,156,96,.35);max-width:52ch;
}
.sello-side-title{
  font-size:.73rem;letter-spacing:.18em;text-transform:uppercase;font-family:'Inter',sans-serif;
  font-weight:600;color:var(--sh-gold);margin-bottom:4px;
}

/* caso */
.caso{margin-top:44px;border-top:1px solid var(--line2);padding-top:34px}
.caso .q{font-family:'Fraunces',serif;font-size:clamp(1.3rem,2.5vw,1.75rem);line-height:1.3;color:var(--fg);max-width:24ch;margin-bottom:22px}
.caso .tagline{font-size:.8rem;letter-spacing:.15em;text-transform:uppercase;color:var(--mut);font-weight:600}
.caso-grid{display:grid;gap:clamp(26px,4vw,54px)}
@media(min-width:860px){.caso-grid{grid-template-columns:.8fr 1.2fr}}
.flow{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:26px;font-size:.77rem;letter-spacing:.1em;text-transform:uppercase;color:var(--mut)}
.flow span{border:1px solid var(--line2);padding:6px 13px;background:var(--white)}
.flow i{font-style:normal;color:var(--acc)}
.propio{margin-top:46px;padding-top:26px;border-top:1px solid var(--line2);font-family:'Fraunces',serif;font-size:1.1rem;line-height:1.55;color:var(--fg);max-width:56ch}

/* banda foto */
.banda-foto{margin:0;background:var(--ink)}
.banda-foto img{width:100%;height:clamp(260px,38vw,470px);object-fit:cover;object-position:center 42%}
.banda-foto figcaption{font-size:.79rem;color:var(--ink-mut);padding:12px clamp(20px,5vw,48px) 14px;max-width:var(--maxw);margin:0 auto}

/* conferencias */
.temas{display:grid;gap:1px;margin-top:44px;background:var(--line2)}
@media(min-width:820px){.temas{grid-template-columns:1fr 1fr}}
.tema{background:var(--white);padding:30px clamp(22px,3vw,34px)}
.tema .t-num{font-family:'Fraunces',serif;font-size:.85rem;color:var(--acc);display:block;margin-bottom:10px}
.tema h3{margin-bottom:10px;font-size:1.13rem}
.tema p{font-size:.95rem}
.formatos{display:flex;flex-wrap:wrap;gap:10px;margin-top:36px}
.formatos span{border:1px solid var(--line2);padding:8px 17px;font-size:.87rem;color:var(--fg)}
.aval{margin-top:44px;padding-top:30px;border-top:1px solid var(--line2)}
.aval .unis{color:var(--fg);font-weight:500}

/* libros */
.libros-dest{display:grid;gap:clamp(30px,4vw,52px);margin-top:46px}
@media(min-width:860px){.libros-dest{grid-template-columns:1fr 1fr}}
.libro{display:grid;grid-template-columns:130px 1fr;gap:26px;align-items:start}
@media(max-width:520px){.libro{grid-template-columns:104px 1fr;gap:18px}}
.cover{background:var(--white);border:1px solid var(--line2);padding:10px;display:flex;align-items:center;justify-content:center}
.cover img{width:100%;height:auto}
.libro .tag{font-size:.7rem;letter-spacing:.17em;text-transform:uppercase;color:var(--acc);font-weight:600;display:block;margin-bottom:10px}
.libro h3{font-size:1.32rem;margin-bottom:12px}
.libro p{font-size:.96rem;margin-bottom:18px}
.otras{margin-top:52px;padding-top:30px;border-top:1px solid var(--line2)}
.otras h4{font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--mut);font-weight:600;font-family:'Inter',sans-serif;margin-bottom:10px}
.otras-list{display:grid;gap:26px;margin-top:26px}
@media(min-width:700px){.otras-list{grid-template-columns:repeat(3,1fr)}}
.otra{display:grid;grid-template-columns:74px 1fr;gap:16px;align-items:start}
.otra .ot{font-weight:600;font-size:.96rem;color:var(--fg);display:block;margin-bottom:3px}
.otra .od{font-size:.86rem;color:var(--mut);display:block;margin-bottom:7px}
.otra a{font-size:.82rem;color:var(--acc);border-bottom:1px solid currentColor}

/* trayectoria */
.arco{margin-top:46px;border-top:1px solid var(--line2)}
.etapa{display:grid;gap:6px 34px;padding:26px 0;border-bottom:1px solid var(--line2)}
@media(min-width:780px){.etapa{grid-template-columns:minmax(200px,.9fr) 2fr;align-items:baseline}}
.etapa h3{font-size:1.1rem}
.etapa p{font-size:.96rem;max-width:60ch}

/* ideas */
.ideas{display:grid;gap:1px;margin-top:42px;background:var(--line2)}
@media(min-width:760px){.ideas{grid-template-columns:repeat(3,1fr)}}
.idea{background:var(--paper);padding:28px clamp(20px,2.6vw,30px);display:flex;flex-direction:column}
.idea .k{font-size:.7rem;letter-spacing:.17em;text-transform:uppercase;color:var(--acc);font-weight:600;margin-bottom:12px}
.idea h3{font-size:1.08rem;margin-bottom:9px}
.idea p{font-size:.92rem;color:var(--mut);flex:1;margin-bottom:18px}
.idea .tlink{align-self:flex-start}

/* contacto */
.contacto{color-scheme:dark}
.contacto-grid{display:grid;gap:clamp(38px,5vw,68px);align-items:start}
@media(min-width:900px){.contacto-grid{grid-template-columns:1fr 1fr}}
form{margin-top:6px}
.field{margin-bottom:18px}
.field label{display:block;font-size:.76rem;letter-spacing:.13em;text-transform:uppercase;color:var(--ink-mut);margin-bottom:7px;font-weight:600}
.field input,.field select,.field textarea{
  width:100%;background:rgba(255,255,255,.05);border:1px solid var(--ink-line2);
  color:var(--ink-fg);padding:12px 14px;font-family:inherit;font-size:.96rem;border-radius:2px;
}
.field textarea{min-height:120px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--acc-d);background:rgba(255,255,255,.08)}
.field select option{background:#14161a;color:#f2f2f0}
.vias{list-style:none;margin-top:30px;border-top:1px solid var(--ink-line2)}
.vias li{padding:14px 0;border-bottom:1px solid var(--ink-line2);display:flex;gap:14px;font-size:.95rem;color:var(--ink-body)}
.vias b{font-family:'Fraunces',serif;color:var(--acc-d);font-weight:500;min-width:2em}
.alt-ways{margin-top:30px;padding-top:24px;border-top:1px solid var(--ink-line2);font-size:.93rem}
.alt-ways a{color:var(--ink-fg);border-bottom:1px solid rgba(242,242,240,.4)}
.mail{font-family:'Fraunces',serif;font-size:clamp(1.15rem,2.1vw,1.45rem);color:var(--ink-fg);border-bottom:1px solid rgba(242,242,240,.35);padding-bottom:3px}

/* footer */
footer{background:#0e1013;color:var(--ink-mut);padding:44px 0;font-size:.85rem}
.foot{display:flex;flex-direction:column;gap:18px}
@media(min-width:700px){.foot{flex-direction:row;justify-content:space-between;align-items:center}}
.social{display:flex;flex-wrap:wrap;gap:20px}
.social a{border-bottom:1px solid transparent}
.social a:hover{color:var(--ink-fg);border-color:rgba(242,242,240,.5)}

/* nav móvil */
@media(max-width:860px){
  .nav{
    position:absolute;top:100%;right:0;left:0;flex-direction:column;align-items:stretch;gap:0;
    background:var(--ink);border-bottom:1px solid var(--ink-line2);
    max-height:0;overflow:hidden;transition:max-height .28s ease;
  }
  .nav a{padding:15px clamp(20px,5vw,48px);border-top:1px solid var(--ink-line);font-size:1rem;color:var(--ink-fg)}
  .nav a::after{display:none}
  #menu:checked ~ .nav{max-height:420px}
  .menu-btn{display:flex;flex-direction:column;justify-content:center;gap:5px;width:30px;height:30px;cursor:pointer}
  .menu-btn span{display:block;height:1.5px;background:var(--ink-fg);transition:transform .25s ease,opacity .2s ease}
  #menu:checked ~ .menu-btn span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
  #menu:checked ~ .menu-btn span:nth-child(2){opacity:0}
  #menu:checked ~ .menu-btn span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}
  .proof div{border-right:0;padding-right:0;margin-right:0;flex:1 1 45%;padding-top:18px}
}
#menu{position:absolute;opacity:0;width:1px;height:1px;pointer-events:none}
#menu:focus-visible ~ .menu-btn{outline:2px solid var(--acc-d);outline-offset:4px}
@media(min-width:861px){#menu{display:none}}

@media(max-width:560px){
  h2{max-width:none}
  .pull{padding-left:18px}
  .proof div{flex:1 1 100%;border-bottom:1px solid var(--ink-line);padding-bottom:16px}
  .proof div:last-child{border-bottom:0}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}

/* ============ páginas interiores ============ */
.page-hero{padding-top:clamp(52px,6.5vw,86px);padding-bottom:clamp(56px,7vw,96px)}
.page-hero .lead{font-size:clamp(1.06rem,1.5vw,1.18rem);max-width:54ch;line-height:1.66;margin-top:24px}
.page-hero-grid{display:grid;gap:clamp(36px,5vw,60px);align-items:center}
@media(min-width:920px){.page-hero-grid{grid-template-columns:1.15fr .85fr}}
.page-hero-img img{width:100%;height:auto;aspect-ratio:1/1;object-fit:cover;object-position:center 30%}
.page-hero-img{position:relative}
.page-hero-img::after{content:"";position:absolute;inset:16px -16px -16px 16px;border:1px solid var(--ink-line2);z-index:-1}

.breadcrumb{font-size:.78rem;letter-spacing:.13em;text-transform:uppercase;color:var(--ink-mut);margin-bottom:22px}
.breadcrumb a{border-bottom:1px solid transparent}
.breadcrumb a:hover{color:var(--ink-fg);border-color:var(--ink-line2)}

/* territorios */
.territorios{margin-top:48px;border-top:1px solid var(--line2)}
.territorio{display:grid;gap:10px 44px;padding:36px 0;border-bottom:1px solid var(--line2)}
@media(min-width:820px){.territorio{grid-template-columns:minmax(220px,.85fr) 2fr;align-items:start}}
.territorio .t-num{font-family:'Fraunces',serif;font-size:.85rem;color:var(--acc);display:block;margin-bottom:8px}
.territorio h3{font-size:1.3rem;line-height:1.25}
.territorio p{font-size:.99rem}
.territorio .llevas{
  margin-top:16px;padding-top:14px;border-top:1px solid var(--line2);
  font-size:.92rem;color:var(--mut);max-width:60ch;
}
.territorio .llevas b{color:var(--fg);font-weight:600}

/* formatos */
.formatos-grid{display:grid;gap:1px;margin-top:46px;background:var(--line2)}
@media(min-width:720px){.formatos-grid{grid-template-columns:1fr 1fr}}
.formato{background:var(--white);padding:30px clamp(22px,3vw,34px)}
.formato h3{font-size:1.15rem;margin-bottom:6px}
.formato .dur{font-size:.76rem;letter-spacing:.14em;text-transform:uppercase;color:var(--acc);font-weight:600;display:block;margin-bottom:12px}
.formato p{font-size:.95rem}

/* público */
.publico{display:grid;gap:0;margin-top:44px;border-top:1px solid var(--line2)}
.publico div{padding:20px 0;border-bottom:1px solid var(--line2);display:grid;gap:4px 34px}
@media(min-width:780px){.publico div{grid-template-columns:minmax(200px,.8fr) 2fr;align-items:baseline}}
.publico .qui{font-family:'Fraunces',serif;font-size:1.05rem;color:var(--fg)}
.publico p{font-size:.95rem}

/* pasos */
.pasos{display:grid;gap:clamp(26px,4vw,44px);margin-top:44px}
@media(min-width:760px){.pasos{grid-template-columns:repeat(3,1fr)}}
.paso{border-top:2px solid var(--fg);padding-top:18px}
.paso .p-num{font-family:'Fraunces',serif;font-size:.85rem;color:var(--acc);display:block;margin-bottom:8px}
.paso h3{font-size:1.1rem;margin-bottom:10px}
.paso p{font-size:.95rem}

/* preguntas */
.faq{margin-top:44px;border-top:1px solid var(--line2)}
.faq details{border-bottom:1px solid var(--line2)}
.faq summary{
  cursor:pointer;list-style:none;padding:22px 0;font-family:'Fraunces',serif;
  font-size:1.08rem;color:var(--fg);display:flex;justify-content:space-between;gap:20px;align-items:baseline;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--acc);font-family:'Inter',sans-serif;font-size:1.2rem;line-height:1;flex-shrink:0}
.faq details[open] summary::after{content:"–"}
.faq details p{padding-bottom:22px;font-size:.97rem;max-width:68ch}

/* cierre */
.cierre{text-align:left}
.cierre h2{max-width:18ch}

/* ============ página de libros ============ */
.libro-ficha{display:grid;gap:28px 48px;padding:clamp(38px,5vw,58px) 0;border-bottom:1px solid var(--line2)}
@media(min-width:820px){.libro-ficha{grid-template-columns:minmax(180px,240px) 1fr;align-items:start}}
.libro-ficha:first-of-type{border-top:1px solid var(--line2)}
.libro-ficha .cover{align-self:start}
.libro-ficha .tag{font-size:.7rem;letter-spacing:.17em;text-transform:uppercase;color:var(--acc);font-weight:600;display:block;margin-bottom:12px}
.libro-ficha h3{font-size:clamp(1.4rem,2.6vw,1.85rem);line-height:1.18;margin-bottom:6px}
.libro-ficha .sub{font-family:'Fraunces',serif;font-size:1.02rem;color:var(--mut);margin-bottom:20px;display:block}
.libro-ficha p{font-size:1rem}
.libro-ficha blockquote{
  font-family:'Fraunces',serif;font-size:1.16rem;line-height:1.45;color:var(--fg);
  border-left:2px solid var(--acc);padding-left:22px;margin:20px 0;max-width:44ch;
}
.libro-meta{
  margin-top:24px;padding-top:18px;border-top:1px solid var(--line2);
  display:flex;flex-wrap:wrap;gap:12px 26px;align-items:center;font-size:.88rem;color:var(--mut);
}
.libro-meta .fmt{border:1px solid var(--line2);padding:5px 12px;font-size:.8rem;color:var(--fg)}