/* Plubrotre — hoja de estilos común */

:root{
  --bg:#f5ece6;
  --bg-alt:#eaddd3;
  --bg-dark:#25304d;
  --text:#241c19;
  --muted:#7d6c62;
  --on-dark:#f5ece6;
  --accent:#2f3d63;
  --accent-2:#b05a3c;
  --step:84px;
  --serif:Georgia,'Times New Roman',serif;
  --sans:system-ui,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
}

*{box-sizing:border-box;}

html{-webkit-text-size-adjust:100%;}

body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.8;
  overflow-x:hidden;
}

.wrap{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding:0 32px;
}

.grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  column-gap:28px;
  row-gap:0;
}

a{color:var(--accent);text-decoration:underline;text-underline-offset:3px;}
a:hover{text-decoration-thickness:2px;}
a:focus-visible,
li a:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:3px;
}

h1,h2,h3{font-family:var(--serif);font-weight:400;}

h1{
  font-size:clamp(34px,5.1vw,60px);
  line-height:1.05;
  letter-spacing:-0.01em;
  margin:0 0 28px;
}

h2{
  font-size:clamp(24px,2.7vw,31px);
  line-height:1.15;
  margin:0 0 20px;
}

h3{
  font-size:20px;
  line-height:1.25;
  margin:34px 0 12px;
}

p{margin:0 0 20px;}
p:last-child{margin-bottom:0;}

/* ---------- Cabecera y navegación ---------- */

.site-head{
  border-bottom:1px solid rgba(36,28,25,.16);
  padding:22px 0 20px;
}

.head-inner{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  justify-content:space-between;
  gap:14px 28px;
}

.brand{
  font-family:var(--serif);
  font-size:23px;
  letter-spacing:.02em;
  color:var(--text);
  text-decoration:none;
}
.brand:hover{color:var(--accent);}

.site-nav ul{
  list-style:none;
  display:flex;
  flex-wrap:wrap;
  gap:6px 22px;
  margin:0;
  padding:0;
}

.site-nav a{
  font-size:15px;
  color:var(--text);
  text-decoration:none;
  border-bottom:1px solid transparent;
  padding-bottom:2px;
}
.site-nav a:hover{border-bottom-color:var(--accent);color:var(--accent);}
.site-nav a[aria-current="page"]{border-bottom-color:var(--accent-2);}

/* ---------- Hero ---------- */

.hero{padding:var(--step) 0 calc(var(--step) - 20px);}

.hero-title{grid-column:1 / 9;grid-row:1;}
.hero-lead{
  grid-column:1 / 7;
  grid-row:2;
  color:var(--text);
}
.hero-lead p:first-child{font-size:19px;}

.index-col{
  grid-column:10 / 13;
  grid-row:1 / span 2;
}

.index-col h2,
.index-col .idx-title{
  font-family:var(--sans);
  font-size:13px;
  font-weight:400;
  color:var(--muted);
  margin:6px 0 14px;
  padding-bottom:10px;
  border-bottom:1px solid rgba(36,28,25,.2);
}

.index-col ol{
  list-style:none;
  margin:0;
  padding:0;
  font-size:13px;
  line-height:1.6;
}
.index-col li{margin-bottom:11px;display:flex;gap:9px;}
.index-col .num{color:var(--accent-2);flex:0 0 auto;}
.index-col a{color:var(--text);text-decoration:none;border-bottom:1px solid rgba(47,61,99,.35);}
.index-col a:hover{color:var(--accent);border-bottom-color:var(--accent);}

.idx-note{
  font-size:13px;
  color:var(--muted);
  margin-top:20px;
  padding-top:14px;
  border-top:1px solid rgba(36,28,25,.2);
}
.idx-note a{color:var(--accent);}

/* ---------- Imagen principal ---------- */

.figure-main{margin:0;padding:0 0 var(--step);}
.figure-main img{
  grid-column:1 / 9;
  width:100%;
  height:auto;
  display:block;
}
.figure-main figcaption{
  grid-column:10 / 13;
  align-self:end;
  font-size:13px;
  line-height:1.55;
  color:var(--muted);
  margin-top:10px;
}

/* ---------- Secciones ---------- */

.band{padding:var(--step) 0;}
.band--alt{background:var(--bg-alt);}
.band--dark{background:var(--bg-dark);color:var(--on-dark);}
.band--dark h2,.band--dark h3{color:var(--on-dark);}
.band--dark a{color:#c9d4ef;}
.band--dark .mark .num{color:#d3855f;}
.band--dark .mark-label{color:#b6aaa0;}
.band--dark .rule{background:rgba(245,236,230,.28);}

.sec + .sec{margin-top:var(--step);}

.sec-body{grid-column:1 / 8;}
.mark{
  grid-column:10 / 13;
  font-size:13px;
  line-height:1.6;
  color:var(--muted);
}
.mark .num{
  color:var(--accent-2);
  display:block;
  margin-bottom:6px;
}
.mark-label{color:var(--muted);}

.rule{
  grid-column:1 / 8;
  height:1px;
  background:rgba(36,28,25,.22);
  margin:0 0 26px;
}

/* Listas de contenido */

.sec-body ul,
.sec-body ol{
  margin:0 0 20px;
  padding-left:0;
  list-style:none;
}
.sec-body ul li,
.sec-body ol li{
  position:relative;
  padding-left:22px;
  margin-bottom:10px;
}
.sec-body ul li::before{
  content:"";
  position:absolute;
  left:0;
  top:.72em;
  width:9px;
  height:1px;
  background:var(--accent);
}
.sec-body ol{counter-reset:it;}
.sec-body ol li{counter-increment:it;padding-left:30px;}
.sec-body ol li::before{
  content:counter(it,decimal-leading-zero);
  position:absolute;
  left:0;
  top:0;
  font-size:13px;
  color:var(--accent-2);
  line-height:1.95;
}

.checklist li::before{background:var(--accent-2);}

/* ---------- Bloque con imagen de detalle ---------- */

.detail-block{align-items:start;}
.detail-fig{
  grid-column:1 / 6;
  margin:0;
}
.detail-fig img{width:100%;height:auto;display:block;}
.detail-fig figcaption{
  font-size:13px;
  line-height:1.55;
  color:#b6aaa0;
  margin-top:12px;
}
.detail-text{grid-column:7 / 13;}

/* ---------- Páginas internas ---------- */

.page-head{padding:var(--step) 0 calc(var(--step) - 34px);}
.page-head .hero-title{grid-column:1 / 10;grid-row:1;}
.page-head .hero-lead{grid-column:1 / 8;grid-row:2;}
.page-head .index-col{grid-column:10 / 13;grid-row:1 / span 2;}

.page-body{padding-bottom:var(--step);}

/* ---------- Pie ---------- */

.site-foot{
  background:var(--bg-alt);
  padding:56px 0 44px;
  font-size:15px;
}
.foot-top{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:20px 32px;
}
.foot-brand{
  font-family:var(--serif);
  font-size:22px;
}
.foot-nav ul{
  list-style:none;
  display:flex;
  flex-wrap:wrap;
  gap:6px 22px;
  margin:0;
  padding:0;
  font-size:14px;
}
.foot-nav a{color:var(--text);text-decoration:none;border-bottom:1px solid rgba(47,61,99,.4);}
.foot-nav a:hover{color:var(--accent);}
.foot-rule{
  height:1px;
  background:rgba(36,28,25,.22);
  margin:26px 0 22px;
}
.foot-mail{margin:0 0 8px;}
.foot-note{
  font-size:13px;
  line-height:1.65;
  color:var(--muted);
  max-width:58ch;
  margin:0;
}

/* ---------- Adaptación ---------- */

@media (max-width:900px){
  :root{--step:50px;}
  body{font-size:16px;line-height:1.75;}
  .wrap{padding:0 20px;}
  .grid{grid-template-columns:1fr;column-gap:0;}

  .hero-title,.hero-lead,.index-col,
  .page-head .hero-title,.page-head .hero-lead,.page-head .index-col,
  .sec-body,.mark,.rule,
  .figure-main img,.figure-main figcaption,
  .detail-fig,.detail-text{
    grid-column:1;
    grid-row:auto;
  }

  .index-col{margin-bottom:28px;}
  .index-col ol{
    display:flex;
    flex-wrap:wrap;
    gap:8px 18px;
  }
  .index-col li{margin-bottom:0;}

  .idx-note{margin-top:16px;}

  .hero-lead{margin-top:0;}
  .figure-main figcaption{margin-top:12px;}

  .mark{margin-bottom:10px;}
  .mark .num{display:inline;margin-right:8px;}

  .detail-fig{max-width:360px;margin-bottom:24px;}
  .rule{margin-bottom:18px;}

  .site-nav ul{gap:6px 16px;}
  .site-nav a{font-size:14px;}
}

@media (max-width:520px){
  .head-inner{flex-direction:column;align-items:flex-start;}
  .foot-top{flex-direction:column;}
}