/* Kozinabro — hoja de estilo común */

:root{
  --bg:#10201f;
  --bg-alt:#172927;
  --bg-contrast:#eaf0ee;
  --text:#e2eae8;
  --text-dim:#87a09c;
  --text-contrast:#10201f;
  --accent:#d1a05a;
  --accent-2:#6fae9e;
  --serif:Georgia,'Times New Roman',serif;
  --sans:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  --step:84px;
}

*{box-sizing:border-box;}

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

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

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

.grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  column-gap:28px;
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}

.col-main{grid-column:1 / 8;}
.col-wide{grid-column:1 / 9;}
.col-intro{grid-column:1 / 7;}
.col-index{grid-column:10 / 13;}

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

.site-head{
  border-bottom:1px solid rgba(111,174,158,.28);
  padding:26px 0 22px;
}

.site-head .grid{align-items:baseline;}

.brand{
  grid-column:1 / 5;
  font-family:var(--serif);
  font-size:20px;
  letter-spacing:.04em;
  margin:0;
}

.brand a{color:var(--text);text-decoration:none;}
.brand a:hover{color:var(--accent);}

.site-nav{grid-column:5 / 13;}

.site-nav ul{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-wrap:wrap;
  justify-content:flex-end;
  gap:10px 26px;
}

.site-nav a{
  font-family:var(--sans);
  font-size:12px;
  letter-spacing:.09em;
  text-transform:uppercase;
  color:var(--text-dim);
  text-decoration:none;
  padding-bottom:3px;
  border-bottom:1px solid transparent;
}

.site-nav a:hover,
.site-nav a[aria-current="page"]{
  color:var(--accent);
  border-bottom-color:var(--accent);
}

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

.hero{padding:74px 0 66px;}

.hero h1{
  grid-column:1 / 9;
  font-size:52px;
  line-height:1.12;
  font-weight:400;
  margin:0 0 30px;
  letter-spacing:-.01em;
}

.hero .lead{
  grid-column:1 / 7;
  margin:0;
  font-size:19px;
  color:var(--text);
}

.hero .lead + .lead{margin-top:18px;color:var(--text-dim);}

/* índice lateral */

.index{
  grid-column:10 / 13;
  grid-row:1 / span 3;
  align-self:start;
  font-family:var(--sans);
  font-size:12px;
  line-height:1.5;
  letter-spacing:.04em;
}

.index h2,
.index p.index-title{
  font-family:var(--sans);
  font-size:11px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--accent-2);
  margin:0 0 14px;
  font-weight:400;
}

.index ol{
  list-style:none;
  margin:0;
  padding:0;
  counter-reset:idx;
}

.index li{
  counter-increment:idx;
  padding:7px 0;
  border-top:1px solid rgba(135,160,156,.22);
}

.index li:last-child{border-bottom:1px solid rgba(135,160,156,.22);}

.index li::before{
  content:counter(idx,decimal-leading-zero);
  color:var(--accent);
  margin-right:9px;
}

.index a{color:var(--text-dim);text-decoration:none;}
.index a:hover{color:var(--text);}

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

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

.band-contrast{
  background:var(--bg-contrast);
  color:var(--text-contrast);
}

.band-contrast h2,
.band-contrast h3{color:var(--text-contrast);}
.band-contrast .num{color:#8a6a2f;}
.band-contrast .kicker{color:#3f6b60;}
.band-contrast figcaption{color:#4d635e;}
.band-contrast li::marker{color:#8a6a2f;}
.band-contrast .rule{background:rgba(16,32,31,.22);}

.num{
  grid-column:10 / 13;
  font-family:var(--sans);
  font-size:12px;
  letter-spacing:.14em;
  color:var(--accent);
  padding-top:10px;
}

h2{
  font-family:var(--serif);
  font-size:31px;
  line-height:1.25;
  font-weight:400;
  margin:0 0 22px;
  letter-spacing:-.005em;
}

h3{
  font-family:var(--serif);
  font-style:italic;
  font-size:21px;
  font-weight:400;
  margin:34px 0 12px;
}

p{margin:0 0 22px;}
p:last-child{margin-bottom:0;}

a{color:var(--accent);}
a:hover{color:var(--text);}

.rule{
  grid-column:1 / 8;
  height:1px;
  background:rgba(135,160,156,.28);
  margin:0 0 30px;
}

.kicker{
  font-family:var(--sans);
  font-size:11px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--accent-2);
  margin:0 0 12px;
}

ul.check,
ol.steps{
  margin:0 0 22px;
  padding-left:20px;
}

ul.check{list-style:square;}
ul.check li,
ol.steps li{margin-bottom:9px;}
ul.check li::marker,
ol.steps li::marker{color:var(--accent);}

.note{
  color:var(--text-dim);
  font-size:17px;
}

/* ---------- imágenes ---------- */

.mainfig{margin:0;padding:6px 0 var(--step);}

.mainfig img,
.detailfig img{
  display:block;
  width:100%;
  height:auto;
}

.mainfig img{grid-column:1 / 9;}

.mainfig figcaption,
.detailfig figcaption{
  font-family:var(--sans);
  font-size:12px;
  line-height:1.5;
  color:var(--text-dim);
  margin-top:12px;
}

.mainfig figcaption{grid-column:10 / 13;}

.detailfig{
  grid-column:8 / 13;
  margin:0;
}

.band-contrast .col-text{grid-column:1 / 7;}

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

.contact-line{
  font-size:20px;
  margin-top:10px;
}

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

.site-foot{
  background:var(--bg);
  border-top:1px solid rgba(111,174,158,.28);
  padding:52px 0 60px;
}

.foot-name{
  grid-column:1 / 6;
  font-size:22px;
  margin:0;
}

.foot-nav{grid-column:7 / 13;}

.foot-nav ul{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-wrap:wrap;
  justify-content:flex-end;
  gap:8px 24px;
}

.foot-nav a{
  font-family:var(--sans);
  font-size:12px;
  letter-spacing:.09em;
  text-transform:uppercase;
  color:var(--text-dim);
  text-decoration:none;
}

.foot-nav a:hover{color:var(--accent);}

.foot-rule{
  grid-column:1 / 13;
  height:1px;
  background:rgba(135,160,156,.28);
  margin:28px 0 22px;
}

.foot-mail{
  grid-column:1 / 7;
  margin:0;
  font-size:18px;
}

.foot-note{
  grid-column:7 / 13;
  margin:0;
  font-family:var(--sans);
  font-size:12px;
  line-height:1.6;
  color:var(--text-dim);
  text-align:right;
}

/* ---------- accesibilidad ---------- */

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

.band-contrast a{color:#8a6a2f;}
.band-contrast a:hover{color:var(--text-contrast);}

/* ---------- responsive ---------- */

@media (max-width:900px){
  :root{--step:50px;}

  .grid{column-gap:20px;padding:0 22px;}

  body{font-size:17px;}

  .brand{grid-column:1 / 13;margin-bottom:12px;}
  .site-nav{grid-column:1 / 13;}
  .site-nav ul{justify-content:flex-start;gap:10px 20px;}

  .hero{padding:40px 0 34px;}
  .hero h1{grid-column:1 / 13;font-size:33px;order:2;}
  .hero .lead{grid-column:1 / 13;font-size:17px;order:3;}

  .index{
    grid-column:1 / 13;
    grid-row:auto;
    order:1;
    margin-bottom:30px;
  }
  .index ol{
    display:flex;
    flex-wrap:wrap;
    gap:0 18px;
  }
  .index li{border:0;padding:4px 0;}
  .index li:last-child{border-bottom:0;}

  .hero .grid,
  .hero-grid{display:grid;}

  .col-main,.col-wide,.col-intro,.col-index,
  .num,.rule,.mainfig img,.mainfig figcaption,
  .detailfig,.band-contrast .col-text,
  .foot-name,.foot-nav,.foot-mail,.foot-note{
    grid-column:1 / 13;
  }

  .num{padding-top:0;margin-bottom:6px;}
  .rule{margin-bottom:18px;}

  h2{font-size:25px;}
  h3{font-size:19px;}

  .detailfig{margin-bottom:26px;}

  .foot-nav ul{justify-content:flex-start;}
  .foot-name{margin-bottom:14px;}
  .foot-mail{margin-bottom:14px;}
  .foot-note{text-align:left;}
  .foot-rule{margin:20px 0 18px;}
}

@media (max-width:480px){
  .hero h1{font-size:28px;}
  .grid{padding:0 18px;}
}