/* Plevalma — hoja de estilos común */

:root{
  --bg:#e9eeeb;
  --bg-alt:#d9e1dd;
  --bg-dark:#1e2a26;
  --ink:#171f1c;
  --ink-soft:#63706b;
  --ink-light:#e9eeeb;
  --rust:#8f4a28;
  --teal:#3d6f66;
  --serif:Georgia,'Times New Roman',serif;
  --sans:system-ui,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  --step:80px;
  --gap:24px;
}

*{box-sizing:border-box;}

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

body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  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(--rust);text-decoration:underline;text-underline-offset:3px;}
a:hover{text-decoration-thickness:2px;}
a:focus-visible{
  outline:2px solid var(--rust);
  outline-offset:3px;
  background:#f4e6de;
}

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

.wrap{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
  display:grid;
  grid-template-columns:repeat(12,1fr);
  column-gap:var(--gap);
}

.rail{
  grid-column:1 / 3;
  position:relative;
  padding-top:6px;
}

.rail-num{
  font-family:var(--serif);
  font-size:13px;
  letter-spacing:.06em;
  color:var(--teal);
  display:block;
  margin-bottom:10px;
}

.rail-scale{
  display:block;
  width:1px;
  min-height:120px;
  height:calc(100% - 40px);
  background:
    repeating-linear-gradient(
      to bottom,
      var(--teal) 0 10px,
      transparent 10px 22px
    );
  opacity:.55;
}

.rail-label{
  font-size:12px;
  line-height:1.5;
  color:var(--ink-soft);
  display:block;
  margin-top:10px;
}

.col-text{grid-column:3 / 10;}
.col-wide{grid-column:3 / 12;}
.col-full{grid-column:3 / 13;}

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

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

h1{
  font-size:52px;
  line-height:1.12;
  letter-spacing:-.01em;
  margin:0 0 22px;
}

h2{
  font-size:27px;
  line-height:1.25;
  margin:0 0 16px;
}

h3{
  font-size:19px;
  line-height:1.35;
  margin:32px 0 10px;
}

p{margin:0 0 18px;max-width:68ch;}

.lead{
  font-size:19px;
  line-height:1.7;
  color:var(--ink);
}

.caption{
  font-size:12px;
  line-height:1.6;
  color:var(--ink-soft);
  margin:0;
}

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

.site-header{
  border-bottom:1px solid rgba(61,111,102,.35);
  background:var(--bg);
}

.site-header .wrap{
  padding-top:18px;
  padding-bottom:18px;
  align-items:baseline;
  row-gap:10px;
}

.brand{
  grid-column:1 / 4;
  font-family:var(--serif);
  font-size:21px;
  color:var(--ink);
  text-decoration:none;
  letter-spacing:.02em;
}

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

.site-nav{grid-column:4 / 13;}

.site-nav ul{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-wrap:wrap;
  gap:8px 26px;
  justify-content:flex-end;
}

.site-nav a{
  font-size:15px;
  color:var(--ink);
  text-decoration:none;
  padding-bottom:3px;
  border-bottom:1px solid transparent;
}

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

/* ---------- héroe ---------- */

.hero{padding:calc(var(--step) - 8px) 0 var(--step);}

.hero h1{grid-column:3 / 10;}

.hero .lead{grid-column:3 / 9;margin-bottom:0;}

.hero .rail-scale{min-height:180px;}

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

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

.band--dark{
  background:var(--bg-dark);
  color:var(--ink-light);
}

.band--dark h2,
.band--dark h3{color:var(--ink-light);}

.band--dark p{color:#cfd9d5;}

.band--dark .rail-num{color:#8fb0a8;}

.band--dark .rail-label,
.band--dark .caption{color:#94a5a0;}

.band--dark .rail-scale{
  background:repeating-linear-gradient(to bottom,#8fb0a8 0 10px,transparent 10px 22px);
  opacity:.5;
}

.band--dark a{color:#d99f7c;}
.band--dark a:focus-visible{background:#3a2a20;outline-color:#d99f7c;}

.band--dark li::marker{color:#d99f7c;}

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

.fig-main{
  margin:0;
  padding:0 0 var(--step);
  grid-column:1 / -1;
  display:grid;
  grid-template-columns:repeat(12,1fr);
  column-gap:var(--gap);
}

.fig-main img{
  grid-column:4 / 13;
  width:100%;
  aspect-ratio:16 / 9;
  object-fit:cover;
}

.fig-main figcaption{
  grid-column:1 / 4;
  padding-right:12px;
  align-self:start;
  border-top:1px solid rgba(61,111,102,.5);
  padding-top:10px;
  font-size:12px;
  line-height:1.6;
  color:var(--ink-soft);
}

/* ---------- imagen de detalle en la sección oscura ---------- */

.detail-block{
  grid-column:3 / 13;
  display:grid;
  grid-template-columns:repeat(10,1fr);
  column-gap:var(--gap);
  row-gap:28px;
  align-items:start;
}

.fig-detail{
  margin:0;
  grid-column:1 / 5;
}

.fig-detail img{
  width:100%;
  aspect-ratio:4 / 5;
  object-fit:cover;
}

.fig-detail figcaption{
  margin-top:10px;
  font-size:12px;
  line-height:1.6;
  color:#94a5a0;
}

.detail-text{grid-column:6 / 11;}
.detail-text p:last-child{margin-bottom:0;}

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

.list-two{
  grid-column:3 / 12;
  columns:2;
  column-gap:48px;
  list-style:none;
  margin:6px 0 0;
  padding:0;
}

.list-two li{
  break-inside:avoid;
  margin:0 0 14px;
  padding-left:18px;
  position:relative;
  max-width:46ch;
}

.list-two li::before{
  content:"";
  position:absolute;
  left:0;
  top:12px;
  width:8px;
  height:1px;
  background:var(--rust);
}

.list-plain{
  margin:6px 0 18px;
  padding-left:20px;
  max-width:64ch;
}

.list-plain li{margin-bottom:10px;}
.list-plain li::marker{color:var(--rust);}

/* ---------- marcas divisorias ---------- */

.ticks{
  grid-column:3 / 13;
  height:24px;
  margin:0 0 46px;
  background:repeating-linear-gradient(to right,var(--teal) 0 1px,transparent 1px 16px);
  opacity:.45;
}

.band--dark .ticks{
  background:repeating-linear-gradient(to right,#8fb0a8 0 1px,transparent 1px 16px);
  opacity:.4;
}

.tick-break{
  width:1px;
  height:24px;
  background:var(--rust);
  margin:26px 0;
  opacity:.7;
}

/* ---------- página About ---------- */

.about-rail{
  grid-column:1 / 3;
  position:sticky;
  top:32px;
  align-self:start;
}

.about-rail ol{
  list-style:none;
  margin:14px 0 0;
  padding:0;
  font-size:12px;
  line-height:1.7;
  color:var(--ink-soft);
}

.about-rail li{margin-bottom:8px;}

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

.contact-box{
  grid-column:3 / 10;
  border-top:1px solid rgba(143,74,40,.5);
  padding-top:18px;
}

.contact-box p{margin-bottom:10px;}

.contact-line{
  font-family:var(--serif);
  font-size:19px;
}

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

.site-footer{
  background:var(--bg);
  border-top:1px solid rgba(61,111,102,.35);
  padding:34px 0 28px;
}

.patchbay{
  grid-column:1 / 13;
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  justify-content:space-between;
  gap:14px 24px;
}

.patchbay .f-name{
  font-family:var(--serif);
  font-size:18px;
}

.patchbay ul{
  list-style:none;
  display:flex;
  flex-wrap:wrap;
  gap:8px 22px;
  margin:0;
  padding:0;
}

.patchbay a{font-size:14px;}

.foot-rule{
  grid-column:1 / 13;
  height:1px;
  background:repeating-linear-gradient(to right,var(--teal) 0 1px,transparent 1px 16px);
  opacity:.5;
  margin:20px 0 12px;
}

.foot-note{
  grid-column:1 / 13;
  font-size:12px;
  line-height:1.6;
  color:var(--ink-soft);
  margin:0;
  max-width:80ch;
}

/* ---------- tablet ---------- */

@media (max-width:900px){
  h1{font-size:40px;}
  h2{font-size:24px;}

  .brand{grid-column:1 / 6;}
  .site-nav{grid-column:6 / 13;}

  .col-text,.col-wide,.col-full,
  .contact-box,.hero h1,.hero .lead{grid-column:2 / 13;}

  .list-two{grid-column:2 / 13;}
  .ticks{grid-column:2 / 13;}

  .fig-main img{grid-column:3 / 13;}
  .fig-main figcaption{grid-column:1 / 3;}

  .detail-block{grid-column:2 / 13;}
  .fig-detail{grid-column:1 / 6;}
  .detail-text{grid-column:6 / 11;}
}

/* ---------- móvil ---------- */

@media (max-width:640px){
  :root{--step:48px;--gap:16px;}

  body{font-size:16px;line-height:1.75;}

  .wrap{padding:0 18px;grid-template-columns:1fr;}

  h1{font-size:31px;}
  h2{font-size:22px;}
  h3{font-size:18px;}
  .lead{font-size:17px;}

  .brand,.site-nav,
  .col-text,.col-wide,.col-full,
  .list-two,.ticks,.contact-box,
  .hero h1,.hero .lead,
  .detail-block,.detail-text,
  .fig-detail,
  .patchbay,.foot-rule,.foot-note{grid-column:1;}

  .site-nav ul{justify-content:flex-start;}

  .rail{
    grid-column:1;
    display:flex;
    align-items:center;
    gap:10px;
    margin-bottom:12px;
    padding-top:0;
  }

  .rail-num{margin:0;}

  .rail-scale{
    width:auto;
    flex:1;
    height:1px;
    min-height:0;
    background:repeating-linear-gradient(to right,var(--teal) 0 1px,transparent 1px 12px);
  }

  .band--dark .rail-scale{
    background:repeating-linear-gradient(to right,#8fb0a8 0 1px,transparent 1px 12px);
  }

  .rail-label{margin-top:0;flex:0 0 auto;}

  .fig-main{grid-template-columns:1fr;padding-bottom:var(--step);}
  .fig-main img{grid-column:1;}
  .fig-main figcaption{grid-column:1;margin-top:10px;padding-right:0;}

  .detail-block{grid-template-columns:1fr;}

  .list-two{columns:1;}

  .about-rail{position:static;grid-column:1;}
  .about-rail ol{display:flex;flex-wrap:wrap;gap:6px 18px;}

  .patchbay{flex-direction:column;align-items:flex-start;}
}