/* Durunte — hoja de estilos común */

:root{
  --paper:#f4eee1;
  --paper-alt:#e8dfcc;
  --ink:#1a1814;
  --ink-soft:#736c5b;
  --dark:#141414;
  --blue:#2b4a8c;
  --ochre:#8a6a1e;
  --mono:ui-monospace,Consolas,"Liberation Mono",monospace;
  --sans:system-ui,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --gap:24px;
}

*{box-sizing:border-box}

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

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.75;
  overflow-x:hidden;
}

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

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

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

/* ---------- estructura ---------- */

.wrap{
  width:100%;
  max-width:1160px;
  margin:0 auto;
  padding:0 24px;
}

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

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

/* ritmo de secciones: 64 / 80 / 96 / 64 */
.r64{padding-top:64px;padding-bottom:64px}
.r80{padding-top:80px;padding-bottom:80px}
.r96{padding-top:96px;padding-bottom:96px}

/* eje vertical */
.axis{position:relative}
.axis::before{
  content:"";
  position:absolute;
  top:0;bottom:0;left:50%;
  width:1px;
  background:var(--blue);
  opacity:.45;
  transform:translateX(-.5px);
}
.band--dark .axis::before{background:var(--ochre);opacity:.7}

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

h1,h2,h3,.label,.num,nav a,.arc-title{
  font-family:var(--mono);
  text-transform:uppercase;
  letter-spacing:.12em;
  font-weight:600;
}

h1{
  font-size:clamp(24px,4.4vw,40px);
  line-height:1.32;
  margin:0 0 28px;
  letter-spacing:.06em;
  text-align:center;
}

h2{
  font-size:clamp(17px,2.2vw,21px);
  line-height:1.5;
  margin:0 0 22px;
}

h3{
  font-size:15px;
  line-height:1.55;
  margin:32px 0 12px;
  letter-spacing:.14em;
}

p{margin:0 0 20px}
p:last-child{margin-bottom:0}

.lead{font-size:18px}

.num{
  display:block;
  font-size:12px;
  letter-spacing:.34em;
  color:var(--ochre);
  margin-bottom:14px;
}
.band--dark .num{color:#c9a24d}

.label{
  font-size:11.5px;
  letter-spacing:.3em;
  color:var(--ochre);
  margin:0 0 10px;
}

.soft{color:var(--ink-soft)}
.band--dark .soft{color:#b6ae9c}

.centered{text-align:center}

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

.site-head{
  border-bottom:1px solid rgba(138,106,30,.35);
  padding:20px 0;
}
.site-head .wrap{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:14px;
}
.brand{
  font-family:var(--mono);
  text-transform:uppercase;
  letter-spacing:.42em;
  font-size:15px;
  font-weight:600;
  color:var(--ink);
  text-decoration:none;
}
.brand:hover{text-decoration:none;color:var(--blue)}

.site-nav ul{
  list-style:none;
  margin:0;padding:0;
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:6px 0;
}
.site-nav li + li::before{
  content:"/";
  color:var(--ochre);
  margin:0 12px;
}
.site-nav a{
  font-size:11.5px;
  letter-spacing:.2em;
  color:var(--ink);
  text-decoration:none;
}
.site-nav a:hover,.site-nav a[aria-current="page"]{
  color:var(--blue);
  text-decoration:underline;
  text-underline-offset:5px;
}

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

.hero{padding-top:72px;padding-bottom:96px}
.hero .h1-line{display:block}
.hero-lead{
  grid-column:4 / span 6;
  text-align:center;
}
.hero-side{margin-top:44px}
.hero-side .left{grid-column:2 / span 3}
.hero-side .right{grid-column:8 / span 3}
.hero-side p{font-size:15px;line-height:1.7;color:var(--ink-soft)}
.hero-side .label{color:var(--ochre)}

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

figure{margin:0}

.fig-main{
  max-width:680px;
  margin:0 auto;
}
.fig-main img{width:100%}

figcaption{
  font-family:var(--mono);
  text-transform:uppercase;
  font-size:11px;
  letter-spacing:.2em;
  line-height:1.8;
  color:var(--ochre);
  margin-top:14px;
  text-align:center;
}

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

.arc{
  grid-column:5 / span 4;
  height:34px;
  border-top:1px solid var(--ochre);
  border-radius:220px 220px 0 0;
  opacity:.8;
}
.band--dark .arc{border-top-color:#c9a24d}

/* ---------- bloques de contenido ---------- */

.pair > *{grid-column:span 4}
.pair > *:first-child{grid-column:2 / span 4}
.pair > *:last-child{grid-column:8 / span 4}

.narrow{grid-column:4 / span 6}
.narrative{grid-column:1 / span 7}
.full{grid-column:1 / span 12}

.head-centered{grid-column:3 / span 8;text-align:center;margin-bottom:36px}

ul.list,ol.list{
  margin:0 0 20px;
  padding-left:0;
  list-style:none;
}
ul.list li,ol.list li{
  position:relative;
  padding-left:26px;
  margin-bottom:12px;
}
ul.list li::before{
  content:"";
  position:absolute;
  left:0;top:12px;
  width:10px;height:1px;
  background:var(--blue);
}
ol.list{counter-reset:step}
ol.list li{counter-increment:step}
ol.list li::before{
  content:counter(step,decimal-leading-zero);
  position:absolute;
  left:0;top:0;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.1em;
  color:var(--ochre);
}
.band--dark ul.list li::before{background:#c9a24d}

.note{
  border-top:1px solid rgba(138,106,30,.45);
  padding-top:18px;
  font-size:15px;
  color:var(--ink-soft);
}

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

.detail-fig{grid-column:1 / span 5}
.detail-text{grid-column:7 / span 6}
.band--dark figcaption{text-align:left;color:#c9a24d}
.band--dark a{color:#9db4e6}

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

.site-foot{
  background:var(--paper-alt);
  padding:56px 0 48px;
  text-align:center;
}
.site-foot .arc{
  grid-column:5 / span 4;
  margin-bottom:30px;
}
.foot-brand{
  font-family:var(--mono);
  text-transform:uppercase;
  letter-spacing:.42em;
  font-size:14px;
  margin:0 0 20px;
}
.site-foot nav ul{
  list-style:none;margin:0 0 20px;padding:0;
  display:flex;flex-wrap:wrap;justify-content:center;gap:6px 0;
}
.site-foot nav li + li::before{
  content:"/";color:var(--ochre);margin:0 12px;
}
.site-foot nav a{
  font-family:var(--mono);
  text-transform:uppercase;
  font-size:11px;
  letter-spacing:.2em;
  color:var(--ink);
  text-decoration:none;
}
.site-foot nav a:hover{color:var(--blue);text-decoration:underline;text-underline-offset:5px}
.foot-mail{margin:0 0 10px}
.foot-note{
  font-size:14px;
  color:var(--ink-soft);
  max-width:620px;
  margin:0 auto;
}

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

@media (max-width:900px){
  .hero-side .left{grid-column:1 / span 6}
  .hero-side .right{grid-column:7 / span 6}
  .pair > *:first-child{grid-column:1 / span 6}
  .pair > *:last-child{grid-column:7 / span 6}
  .narrow{grid-column:2 / span 10}
  .narrative{grid-column:1 / span 9}
  .head-centered{grid-column:1 / span 12}
  .detail-fig{grid-column:1 / span 6}
  .detail-text{grid-column:7 / span 6}
}

@media (max-width:640px){
  body{font-size:16.5px}
  .wrap{padding:0 18px}
  .grid{column-gap:0;row-gap:28px}
  .r64,.r80,.r96{padding-top:44px;padding-bottom:44px}
  .hero{padding-top:44px;padding-bottom:56px}
  .axis::before{display:none}
  .grid > *{grid-column:1 / -1 !important}
  .hero-side{margin-top:28px}
  .hero-side .left{margin-bottom:28px}
  .head-centered{margin-bottom:26px}
  .arc{height:26px;max-width:260px;margin-left:auto;margin-right:auto;width:100%}
  .detail-fig{margin-bottom:32px}
  h1{letter-spacing:.04em}
  .brand{letter-spacing:.3em}
  .site-nav li + li::before{margin:0 8px}
  .fig-main{max-width:100%}
  .site-foot nav li + li::before{margin:0 8px}
}