/* Rentinde — hoja de estilo general */

:root{
  --bg:#f4f2ed;
  --bg-alt:#e6e3dc;
  --bg-dark:#16151a;
  --ink:#16151a;
  --ink-soft:#6d6a63;
  --ink-invert:#f4f2ed;
  --blue:#1f3fa8;
  --red:#c0452e;
  --serif:Georgia,'Times New Roman',serif;
  --sans:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Arial,sans-serif;
  --gap:24px;
}

*{box-sizing:border-box;}

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

body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  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(--blue);text-decoration:underline;text-underline-offset:3px;}
a:hover{text-decoration-thickness:2px;}

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

/* ---------- rejilla de 12 columnas ---------- */

.wrap{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding:0 24px;
}

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

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

.site-head{padding:28px 0 0;}

.nav-line{
  height:1px;
  background:var(--blue);
  grid-column:1 / span 5;
  margin-top:14px;
}

.brand{
  grid-column:1 / span 4;
  font-family:var(--sans);
  font-size:13px;
  letter-spacing:.22em;
  text-transform:uppercase;
  margin:0;
  font-weight:600;
}
.brand a{color:var(--ink);text-decoration:none;}

.site-nav{
  grid-column:5 / span 8;
  font-family:var(--sans);
  font-size:13px;
  letter-spacing:.12em;
}
.site-nav ul{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-wrap:wrap;
  gap:6px 26px;
  justify-content:flex-end;
}
.site-nav a{
  color:var(--ink-soft);
  text-decoration:none;
  padding-bottom:2px;
  border-bottom:1px solid transparent;
}
.site-nav a:hover,
.site-nav a[aria-current="page"]{
  color:var(--ink);
  border-bottom-color:var(--blue);
}

/* ---------- portada ---------- */

.hero{padding:64px 0 0;}

.hero h1{
  grid-column:1 / span 7;
  font-size:clamp(34px,5.2vw,60px);
  line-height:1.08;
  font-weight:400;
  margin:0;
  letter-spacing:-.01em;
}
.hero h1 .l1{display:block;margin-left:calc((100% / 7) * 2);}
.hero h1 .l2{display:block;}

.hero-index{
  grid-column:10 / span 3;
  align-self:end;
  font-family:var(--sans);
  font-size:12px;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--ink-soft);
  margin:0;
  padding:0;
  list-style:none;
  border-top:1px solid var(--ink-soft);
}
.hero-index li{
  border-bottom:1px solid var(--ink-soft);
  padding:8px 0;
}
.hero-index .num{color:var(--red);margin-right:8px;}

.hero-lead{padding:40px 0 0;}
.hero-lead p{
  grid-column:1 / span 6;
  margin:0 0 20px;
}

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

.figure-main{
  grid-column:8 / span 5;
  margin:0;
}
.figure-main img{
  width:100%;
  border:1px solid var(--red);
  padding:8px;
  background:var(--bg);
}
.figure-main figcaption,
.figure-side{
  font-family:var(--sans);
  font-size:12px;
  line-height:1.5;
  color:var(--ink-soft);
  letter-spacing:.02em;
}
.figure-main figcaption{margin-top:10px;}

.main-block{padding:64px 0 0;align-items:end;}
.main-block .figure-side{
  grid-column:2 / span 5;
  border-top:1px solid var(--red);
  padding-top:10px;
}

/* ---------- ritmo de secciones ---------- */

.band{padding:64px 0;}
.band-alt{background:var(--bg-alt);}
.band-dark{background:var(--bg-dark);color:var(--ink-invert);}
.band-dark h2,.band-dark h3{color:var(--ink-invert);}
.band-dark .rule{background:var(--ink-invert);}
.band-dark .kicker{color:#b9b4a8;}
.band-dark a{color:#9fb2ee;}

.col-text{grid-column:1 / span 6;}
.col-shift{grid-column:4 / span 6;}

h2{
  font-size:clamp(24px,3vw,32px);
  line-height:1.2;
  font-weight:400;
  margin:0 0 18px;
  letter-spacing:-.005em;
}
h3{
  font-style:italic;
  font-size:21px;
  font-weight:400;
  margin:34px 0 10px;
}
p{margin:0 0 20px;}

.kicker{
  font-family:var(--sans);
  font-size:12px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--red);
  display:block;
  margin:0 0 12px;
}

.rule{
  height:1px;
  background:var(--blue);
  grid-column:1 / span 2;
  margin:0 0 28px;
}
.rule-shift{grid-column:4 / span 2;}

ul.list,ol.list{
  padding-left:1.15em;
  margin:0 0 20px;
}
ul.list{list-style:none;padding-left:0;}
ul.list li{
  position:relative;
  padding-left:22px;
  margin-bottom:12px;
}
ul.list li::before{
  content:"";
  position:absolute;
  left:0;
  top:.65em;
  width:10px;
  height:1px;
  background:var(--blue);
}
ol.list li{margin-bottom:12px;}
ol.list li::marker{color:var(--red);font-family:var(--sans);font-size:14px;}

.defs{margin:0;}
.defs dt{font-style:italic;margin-top:18px;}
.defs dd{margin:4px 0 0;}

.table-plain{
  width:100%;
  border-collapse:collapse;
  font-size:16px;
  margin:0 0 20px;
}
.table-plain caption{
  text-align:left;
  font-family:var(--sans);
  font-size:12px;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--ink-soft);
  padding-bottom:10px;
}
.table-plain th,.table-plain td{
  text-align:left;
  padding:9px 14px 9px 0;
  border-bottom:1px solid rgba(109,106,99,.4);
  vertical-align:top;
}
.table-plain th{font-weight:400;font-style:italic;}

/* ---------- sección oscura con imagen de detalle ---------- */

.figure-detail{
  grid-column:1 / span 5;
  margin:0;
}
.figure-detail img{width:100%;}
.figure-detail figcaption{
  font-family:var(--sans);
  font-size:12px;
  line-height:1.5;
  color:#b9b4a8;
  margin-top:10px;
}
.detail-text{grid-column:7 / span 6;}

/* ---------- página Sobre el proyecto ---------- */

.page-head{padding:56px 0 0;}
.page-head h1{
  grid-column:1 / span 8;
  font-size:clamp(30px,4.2vw,46px);
  font-weight:400;
  line-height:1.12;
  margin:0;
}
.narrow{grid-column:1 / span 6;}

.doc section{margin-bottom:56px;}
.doc h2{
  position:relative;
  padding-left:38px;
  margin-bottom:16px;
}
.doc h2::before{
  content:"";
  position:absolute;
  left:0;
  top:.7em;
  width:24px;
  height:1px;
  background:var(--blue);
}
.doc{padding:48px 0 8px;}

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

.site-foot{
  padding:56px 0 64px;
  font-size:16px;
}
.foot-rule{
  height:1px;
  background:var(--blue);
  grid-column:1 / span 5;
  margin-bottom:26px;
}
.foot-a{grid-column:1 / span 5;}
.foot-b{grid-column:6 / span 3;}
.foot-c{grid-column:9 / span 4;}

.foot-name{
  font-family:var(--sans);
  font-size:13px;
  letter-spacing:.22em;
  text-transform:uppercase;
  font-weight:600;
  margin:0 0 10px;
}
.foot-note{
  font-family:var(--sans);
  font-size:12px;
  line-height:1.6;
  color:var(--ink-soft);
  margin:0;
}
.site-foot ul{
  list-style:none;
  margin:0;
  padding:0;
  font-family:var(--sans);
  font-size:13px;
  line-height:2;
}
.site-foot ul a{color:var(--ink-soft);text-decoration:none;}
.site-foot ul a:hover{color:var(--ink);border-bottom:1px solid var(--blue);}
.foot-mail{margin:0 0 10px;}

/* ---------- adaptación a pantallas estrechas ---------- */

@media (max-width:900px){
  .brand{grid-column:1 / span 12;}
  .site-nav{grid-column:1 / span 12;margin-top:12px;}
  .site-nav ul{justify-content:flex-start;}
  .nav-line{grid-column:1 / span 12;}

  .hero{padding:40px 0 0;}
  .hero h1{grid-column:1 / span 12;}
  .hero h1 .l1{margin-left:0;}
  .hero-index{grid-column:1 / span 12;margin-top:32px;}
  .hero-lead p,
  .col-text,.col-shift,.narrow,.detail-text{grid-column:1 / span 12;}
  .rule,.rule-shift{grid-column:1 / span 4;}

  .figure-main{grid-column:1 / span 12;max-width:520px;}
  .main-block{padding:40px 0 0;}
  .main-block .figure-side{grid-column:1 / span 12;margin-top:16px;}

  .figure-detail{grid-column:1 / span 12;max-width:420px;margin-bottom:28px;}

  .page-head h1{grid-column:1 / span 12;}

  .band{padding:40px 0;}
  .doc section{margin-bottom:44px;}

  .foot-rule,.foot-a,.foot-b,.foot-c{grid-column:1 / span 12;}
  .foot-b,.foot-c{margin-top:26px;}
}

@media (max-width:520px){
  body{font-size:17px;}
  .wrap{padding:0 18px;}
  .table-plain{font-size:15px;}
}