/* Revuntoza — hoja de estilo única */

:root{
  --paper:#fbf9f5;
  --paper-alt:#e4e8e1;
  --ink-dark:#223129;
  --text:#22201c;
  --text-soft:#797468;
  --accent:#54684e;
  --sand:#a87c48;
  --sand-light:#c9a074;
  --serif:Georgia,'Times New Roman',Times,serif;
  --sans:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  --line:rgba(84,104,78,.28);
}

*,*::before,*::after{box-sizing:border-box}

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

body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--serif);
  font-size:18px;
  line-height:1.65;
  overflow-x:hidden;
}

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

a{color:var(--accent);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
a:hover{text-decoration-thickness:2px}

:focus-visible{outline:2px solid var(--accent);outline-offset:3px}

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

.wrap{
  width:100%;
  max-width:1120px;
  margin:0 auto;
  padding:0 24px;
}

.grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  column-gap:24px;
}

.c-center6{grid-column:4/10}
.c-center8{grid-column:3/11}
.c-full{grid-column:1/13}
.c-left7{grid-column:1/8}
.c-pair-a{grid-column:2/6}
.c-pair-b{grid-column:8/12}
.c-hero-a{grid-column:1/4}
.c-hero-b{grid-column:10/13}

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

h1,h2,h3{font-weight:normal;margin:0}

h1{
  font-size:clamp(2.15rem,5.2vw,3.6rem);
  line-height:1.14;
  letter-spacing:-.01em;
  text-align:center;
}

h2{
  font-size:clamp(1.5rem,2.9vw,2.05rem);
  line-height:1.25;
  margin-bottom:.5em;
}

h3{
  font-style:italic;
  font-size:1.2rem;
  line-height:1.35;
  margin:2.2em 0 .4em;
}

p{margin:0 0 1.35em}
p:last-child{margin-bottom:0}

.lede{font-size:1.16rem;line-height:1.6}

.soft{color:var(--text-soft)}

.num{
  font-family:var(--sans);
  font-size:12px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--sand);
  display:block;
  margin-bottom:1.1em;
}

.caption{
  font-family:var(--sans);
  font-size:12px;
  line-height:1.55;
  letter-spacing:.02em;
  color:var(--text-soft);
  margin-top:14px;
}

ul,ol{margin:0 0 1.35em;padding-left:1.15em}
li{margin-bottom:.55em}
li::marker{color:var(--accent)}

.check{list-style:none;padding-left:0}
.check li{
  padding-left:22px;
  position:relative;
}
.check li::before{
  content:"";
  position:absolute;
  left:0;top:.62em;
  width:9px;height:1px;
  background:var(--accent);
}

/* ---------- cabecera y navegación ---------- */

.site-head{
  border-bottom:1px solid var(--line);
  background:var(--paper);
}

.site-head .wrap{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  justify-content:center;
  gap:8px 26px;
  padding-top:20px;
  padding-bottom:20px;
}

.brand{
  font-family:var(--serif);
  font-size:1.18rem;
  letter-spacing:.06em;
  text-transform:uppercase;
  color:var(--text);
  text-decoration:none;
}
.brand:hover{color:var(--accent)}

.site-nav ul{
  list-style:none;
  margin:0;padding:0;
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:6px 20px;
}
.site-nav li{margin:0}
.site-nav a{
  font-family:var(--sans);
  font-size:13px;
  letter-spacing:.04em;
  color:var(--text-soft);
  text-decoration:none;
}
.site-nav a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px}

/* ---------- hero de eje ---------- */

.hero{
  position:relative;
  padding:72px 0 88px;
}
.hero::before{
  content:"";
  position:absolute;
  top:0;bottom:0;left:50%;
  width:1px;
  background:linear-gradient(to bottom,rgba(84,104,78,0),rgba(84,104,78,.45) 18%,rgba(84,104,78,.45) 82%,rgba(84,104,78,0));
}
.hero .num{text-align:center}
.hero-lede{margin-top:26px;text-align:center}
.hero-sides{margin-top:52px}
.hero-sides p{
  font-size:.95rem;
  line-height:1.6;
  color:var(--text-soft);
}
.c-hero-a{text-align:right}
.c-hero-b{text-align:left}

/* ---------- figuras ---------- */

.fig-axis{
  margin:0 auto;
  max-width:680px;
  text-align:center;
}
.fig-axis img{margin:0 auto;width:100%}
.fig-axis .caption{text-align:center;max-width:44ch;margin-left:auto;margin-right:auto}

/* ---------- secciones ---------- */

main section{padding:64px 0}
main section:nth-of-type(4n+2){padding:80px 0}
main section:nth-of-type(4n+3){padding:96px 0}

.band{background:var(--paper-alt)}

.dark{
  background:var(--ink-dark);
  color:var(--paper);
}
.dark h2,.dark h3{color:var(--paper)}
.dark .num{color:var(--sand-light)}
.dark .caption{color:rgba(251,249,245,.72)}
.dark a{color:var(--sand-light)}
.dark li::marker{color:var(--sand-light)}
.dark .check li::before{background:var(--sand-light)}

.dark .fig-detail{grid-column:2/7;margin:0}
.dark .fig-detail img{width:100%}
.dark .detail-text{grid-column:7/13}

/* ---------- arco separador ---------- */

.arc{
  width:33.33%;
  min-width:180px;
  height:26px;
  margin:0 auto;
  border-top:1px solid var(--sand);
  border-left:1px solid rgba(168,124,72,.35);
  border-right:1px solid rgba(168,124,72,.35);
  border-radius:200px 200px 0 0;
}
.arc-space{padding:0 0 6px}

/* ---------- índice de contenidos ---------- */

.index-list{
  list-style:none;
  padding:0;
  margin:0;
  columns:2;
  column-gap:32px;
}
.index-list li{
  break-inside:avoid;
  margin-bottom:.7em;
  font-size:.98rem;
}

/* ---------- contacto ---------- */

.contact-block{text-align:center}
.contact-block .mail{
  font-size:1.2rem;
  display:inline-block;
  margin-top:.3em;
}

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

.site-foot{
  background:var(--paper);
  border-top:0;
  padding:56px 0 64px;
  text-align:center;
}
.site-foot .foot-name{
  font-size:1.1rem;
  letter-spacing:.06em;
  text-transform:uppercase;
  margin:26px 0 18px;
}
.foot-nav ul{
  list-style:none;
  margin:0 0 18px;padding:0;
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:6px 0;
}
.foot-nav li{margin:0;display:flex;align-items:center}
.foot-nav li+li::before{
  content:"·";
  color:var(--sand);
  margin:0 12px;
}
.foot-nav a{
  font-family:var(--sans);
  font-size:13px;
  color:var(--text-soft);
  text-decoration:none;
}
.foot-nav a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px}
.foot-mail{margin:0 0 10px}
.foot-note{
  font-family:var(--sans);
  font-size:12px;
  line-height:1.6;
  color:var(--text-soft);
  max-width:52ch;
  margin:0 auto;
}

/* ---------- páginas interiores ---------- */

.page-head{
  padding:64px 0 8px;
  position:relative;
}
.page-head::before{
  content:"";
  position:absolute;
  top:16px;bottom:-10px;left:50%;
  width:1px;
  background:linear-gradient(to bottom,rgba(84,104,78,0),rgba(84,104,78,.4),rgba(84,104,78,0));
}
.page-head .num{text-align:center}
.page-head p{text-align:center;margin-top:24px}

main.prose h2{margin-top:0}
main.prose section{padding:48px 0}

.pair-block{
  border-top:1px solid var(--line);
  padding-top:16px;
}
.pair-block h3{margin-top:0;font-size:1.05rem}
.pair-block p{font-size:.95rem;color:var(--text-soft);margin-bottom:0}

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

@media (max-width:900px){
  .c-center6,.c-center8,.c-left7,.c-pair-a,.c-pair-b,
  .c-hero-a,.c-hero-b,
  .dark .fig-detail,.dark .detail-text{grid-column:1/13}
  .c-hero-a,.c-hero-b{text-align:center}
  .hero-sides > *+*{margin-top:26px}
  .dark .detail-text{margin-top:32px}
  .pair-block+.pair-block{margin-top:26px}
}

@media (max-width:760px){
  body{font-size:17px}
  .hero{padding:44px 0 52px}
  .hero::before{opacity:.55}
  main section{padding:44px 0}
  main section:nth-of-type(4n+2){padding:52px 0}
  main section:nth-of-type(4n+3){padding:56px 0}
  main.prose section{padding:34px 0}
  .index-list{columns:1}
  .fig-axis{max-width:100%}
  .page-head{padding:44px 0 6px}
  .site-foot{padding:44px 0 52px}
}

@media (max-width:480px){
  .wrap{padding:0 18px}
  .site-head .wrap{gap:10px 16px}
  .arc{width:60%}
}

.br-desk{display:inline}
@media (max-width:760px){.br-desk{display:none}}