/* Perveste — hoja de estilos común */

:root{
  --bg:#151b2b;
  --bg-alt:#1c2436;
  --paper:#eee8dc;
  --text:#e4e0d4;
  --muted:#8a93a5;
  --ink:#151b2b;
  --copper:#c98a4c;
  --steel:#7fa3b8;
  --copper-ink:#8a5526;
  --steel-ink:#3c6178;
  --serif:Georgia,"Times New Roman",serif;
  --sans:system-ui,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --rhythm:84px;
  --gap:24px;
}

*{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;
}

img{max-width:100%;height:auto;display:block;}

a{color:var(--copper);text-decoration:none;border-bottom:1px solid rgba(201,138,76,.45);}
a:hover{border-bottom-color:var(--copper);}
a:focus-visible,
:focus-visible{outline:2px solid var(--copper);outline-offset:3px;}

/* ---------- rejilla ---------- */

.wrap{
  width:100%;
  max-width:1160px;
  margin:0 auto;
  padding:0 32px;
}

.grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  column-gap:var(--gap);
}

/* ---------- cruces de registro ---------- */

.reg{position:absolute;width:20px;height:20px;pointer-events:none;}
.reg::before,
.reg::after{content:"";position:absolute;background:var(--steel);}
.reg::before{left:0;right:0;top:9px;height:1px;}
.reg::after{top:0;bottom:0;left:9px;width:1px;}
.reg.tl{left:-10px;top:-10px;}
.reg.tr{right:-10px;top:-10px;}
.reg.bl{left:-10px;bottom:-10px;}
.reg.br{right:-10px;bottom:-10px;}
.reg.copper::before,
.reg.copper::after{background:var(--copper);}

/* ---------- cabecera ---------- */

.site-head{
  border-bottom:1px solid rgba(138,147,165,.28);
  padding:22px 0 18px;
}
.site-head .wrap{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  justify-content:space-between;
  gap:14px 28px;
}
.brand{
  font-family:var(--serif);
  font-size:1.32rem;
  letter-spacing:.06em;
  color:var(--text);
  border-bottom:0;
}
.brand span{color:var(--copper);}
.site-nav ul{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-wrap:wrap;
  gap:6px 26px;
}
.site-nav a{
  font-size:15px;
  color:var(--muted);
  border-bottom:1px solid transparent;
}
.site-nav a:hover,
.site-nav a[aria-current="page"]{color:var(--text);border-bottom-color:var(--copper);}

/* ---------- tipografía ---------- */

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

h1{
  font-size:clamp(2.3rem,5.6vw,4.05rem);
  line-height:1.08;
  margin:0;
  letter-spacing:-.015em;
}
.h1-off{position:relative;display:inline-block;}
.h1-off::after{
  content:"";
  position:absolute;
  left:-6px;
  right:-14px;
  top:62%;
  height:2px;
  background:var(--copper);
}

h2{
  font-size:clamp(1.3rem,2.1vw,1.62rem);
  line-height:1.3;
  margin:0 0 18px;
  letter-spacing:.005em;
}
h3{
  font-size:1.02rem;
  line-height:1.45;
  margin:30px 0 10px;
  color:var(--text);
}
p{margin:0 0 20px;max-width:68ch;}
p:last-child{margin-bottom:0;}

.num{
  display:block;
  font-family:var(--serif);
  font-size:13px;
  letter-spacing:.22em;
  color:var(--steel);
  margin-bottom:10px;
}
.cap{
  font-size:12px;
  line-height:1.6;
  color:var(--muted);
  margin:10px 0 0;
  max-width:46ch;
}

/* ---------- listas ---------- */

ul.sq,ol.sq{list-style:none;margin:22px 0 0;padding:0;}
ul.sq li,ol.sq li{position:relative;padding-left:22px;margin-bottom:12px;}
ul.sq li::before{
  content:"";
  position:absolute;
  left:0;
  top:.72em;
  width:6px;
  height:6px;
  background:var(--copper);
}
ol.sq{counter-reset:step;}
ol.sq li{padding-left:34px;}
ol.sq li::before{
  counter-increment:step;
  content:counter(step,decimal-leading-zero);
  position:absolute;
  left:0;
  top:0;
  font-family:var(--serif);
  font-size:13px;
  letter-spacing:.1em;
  color:var(--steel);
}

/* ---------- separador doble ---------- */

.sep{margin:0;border:0;padding:0;}
.sep span{display:block;height:2px;background:var(--copper);width:100%;max-width:520px;}
.sep span+span{background:var(--steel);margin:6px 0 0 24px;max-width:496px;}

/* ---------- hero ---------- */

.hero{padding:calc(var(--rhythm) - 10px) 0 var(--rhythm);}
.hero-frame{position:relative;padding:46px 0 44px;}
.hero h1{grid-column:1 / span 9;}
.hero-body{margin-top:44px;row-gap:34px;}
.hero-intro{grid-column:1 / span 5;}
.hero-intro p{font-size:18px;}
.hero-topics{grid-column:8 / span 4;}
.hero-topics h2{
  font-family:var(--sans);
  font-size:12px;
  letter-spacing:.18em;
  color:var(--steel);
  margin-bottom:4px;
}
.hero-topics ul.sq{margin-top:14px;}
.hero-topics li{font-size:15.5px;line-height:1.65;color:var(--text);}

/* ---------- imagen principal ---------- */

.figure-main{margin:0 0 var(--rhythm);}
.figure-main .frame{
  grid-column:3 / span 8;
  position:relative;
}
.figure-main img{width:100%;}

/* ---------- secciones de texto ---------- */

.band{padding:var(--rhythm) 0;}
.band-alt{background:var(--bg-alt);}

.tsec{padding:0 0 var(--rhythm);}
.tsec:last-child{padding-bottom:0;}
.tsec .col{grid-column:1 / span 7;}
.tsec.s1 .col{grid-column:2 / span 7;}
.tsec.s2 .col{grid-column:3 / span 7;}
.tsec.s3 .col{grid-column:4 / span 7;}
.tsec .sep{margin-bottom:26px;}

/* ---------- sección contrastada ---------- */

.paper{
  background:var(--paper);
  color:var(--ink);
  padding:var(--rhythm) 0;
}
.paper h2,.paper h3{color:var(--ink);}
.paper p{color:#2b3242;}
.paper .num{color:var(--steel-ink);}
.paper .cap{color:#5d6475;}
.paper a{color:var(--copper-ink);border-bottom-color:rgba(138,85,38,.5);}
.paper a:hover{border-bottom-color:var(--copper-ink);}
.paper ul.sq li::before{background:var(--copper-ink);}
.paper .sep span{background:var(--copper-ink);}
.paper .sep span+span{background:var(--steel-ink);}
.paper .reg::before,.paper .reg::after{background:var(--steel-ink);}

.detail-row{row-gap:40px;align-items:start;}
.detail-figure{grid-column:1 / span 5;margin:0;position:relative;}
.detail-figure .frame{position:relative;}
.detail-text{grid-column:7 / span 6;}

/* ---------- bloque de contenidos / contacto ---------- */

.plain .col{grid-column:2 / span 7;}
.contact-line{
  font-family:var(--serif);
  font-size:1.12rem;
  margin-top:8px;
}

/* ---------- about ---------- */

.about-wrap{position:relative;padding:var(--rhythm) 0;}
.about-col{grid-column:3 / span 7;}
.about-rail{
  grid-column:1 / span 1;
  position:relative;
  display:flex;
  flex-direction:column;
  justify-content:flex-start;
  gap:96px;
  padding-top:14px;
}
.about-rail .reg{position:relative;left:0;top:0;}
.about-block{margin-bottom:56px;}
.about-block:last-child{margin-bottom:0;}

/* ---------- páginas legales ---------- */

.doc{padding:var(--rhythm) 0;}
.doc .col{grid-column:2 / span 8;}
.doc h2{margin-top:46px;}
.doc h2:first-of-type{margin-top:34px;}
.lead{font-size:18px;color:var(--text);}
.doc dl{margin:22px 0 0;}
.doc dt{font-family:var(--serif);margin-top:18px;}
.doc dd{margin:6px 0 0;color:var(--text);}

/* ---------- pie ---------- */

.site-foot{
  background:var(--paper);
  color:var(--ink);
  padding:44px 0 52px;
}
.site-foot .sep{margin-bottom:34px;}
.site-foot .sep span{background:var(--copper-ink);}
.site-foot .sep span+span{background:var(--steel-ink);}
.foot-grid{row-gap:32px;}
.foot-main{grid-column:1 / span 7;}
.foot-nav{grid-column:8 / span 5;}
.foot-name{
  font-family:var(--serif);
  font-size:1.3rem;
  letter-spacing:.06em;
  margin:0 0 12px;
}
.foot-main p{color:#2b3242;font-size:15.5px;max-width:52ch;}
.foot-nav ul{list-style:none;margin:0 0 16px;padding:0;}
.foot-nav li{margin-bottom:8px;}
.foot-nav a,.site-foot a{color:var(--copper-ink);border-bottom-color:rgba(138,85,38,.45);}
.foot-mail{font-family:var(--serif);font-size:1.02rem;}
.foot-note{
  grid-column:1 / span 12;
  font-size:12px;
  color:#5d6475;
  margin-top:26px;
}

/* ---------- adaptación ---------- */

@media (max-width:900px){
  :root{--rhythm:50px;--gap:18px;}
  .wrap{padding:0 20px;}
  body{font-size:16.5px;}
  .grid{grid-template-columns:1fr;}
  .hero h1,
  .hero-intro,
  .hero-topics,
  .figure-main .frame,
  .tsec .col,
  .tsec.s1 .col,
  .tsec.s2 .col,
  .tsec.s3 .col,
  .detail-figure,
  .detail-text,
  .plain .col,
  .about-col,
  .doc .col,
  .foot-main,
  .foot-nav,
  .foot-note{grid-column:1 / -1;}
  .about-rail{display:none;}
  .hero-frame{padding:34px 0 30px;}
  .hero-body{margin-top:32px;}
  .detail-figure{max-width:420px;}
  .sep span{max-width:100%;}
  .sep span+span{margin-left:18px;max-width:calc(100% - 18px);}
  .site-head .wrap{flex-direction:column;align-items:flex-start;}
  .site-nav ul{gap:4px 20px;}
  h1{font-size:clamp(2rem,8.4vw,2.7rem);}
}

@media (max-width:420px){
  .reg{display:none;}
}

/* pie de foto de la imagen principal */
.figure-main figcaption{grid-column:3 / span 8;margin-top:12px;}
@media (max-width:900px){
  .figure-main figcaption{grid-column:1 / -1;}
}