/* Stavonde — hoja de estilos común */

:root{
  --bg:#f5f4f0;
  --bg-alt:#e2ded4;
  --bg-deep:#14456b;
  --ink:#1c1e20;
  --ink-soft:#6a6d6e;
  --ink-inv:#f5f4f0;
  --accent:#c2522f;
  --accent2:#1d6b8f;
  --serif:Georgia,'Times New Roman',serif;
  --sans:system-ui,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  --maxw:1140px;
  --gap:28px;
}

*,*::before,*::after{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:1.72;
  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;}
a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:3px;}

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

.wrap{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 24px;
}

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

.axis{position:relative;}
.axis::before{
  content:"";
  position:absolute;
  top:0;bottom:0;left:50%;
  width:1px;
  background:linear-gradient(to bottom,rgba(194,82,47,.55),rgba(194,82,47,.12));
  transform:translateX(-.5px);
}

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

h1,h2,h3{font-family:var(--serif);font-weight:400;text-transform:none;letter-spacing:.005em;}
h1{font-size:clamp(2.05rem,4.6vw,3.15rem);line-height:1.16;margin:0;}
h2{font-size:clamp(1.5rem,2.7vw,2.05rem);line-height:1.24;margin:0 0 .7em;}
h3{font-size:1.16rem;font-style:italic;line-height:1.4;margin:0 0 .5em;}

p{margin:0 0 1.15em;}
p:last-child{margin-bottom:0;}

.label{
  font-family:var(--sans);
  font-size:12px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--accent2);
  margin:0 0 14px;
  display:block;
}
.num{font-family:var(--sans);font-size:12px;letter-spacing:.18em;color:var(--accent2);}

.lead{font-size:1.11rem;line-height:1.68;}
.soft{color:var(--ink-soft);}

figcaption{
  font-size:13px;
  line-height:1.55;
  color:var(--ink-soft);
  margin-top:12px;
}

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

.site-head{
  border-bottom:1px solid rgba(28,30,32,.12);
  background:var(--bg);
}
.site-head .wrap{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  justify-content:center;
  gap:10px 26px;
  padding-top:22px;
  padding-bottom:22px;
  text-align:center;
}
.brand{
  font-family:var(--serif);
  font-size:1.35rem;
  letter-spacing:.02em;
  color:var(--ink);
  text-decoration:none;
  flex-basis:100%;
}
.brand:hover{color:var(--accent);}
.site-nav ul{
  list-style:none;
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:6px 22px;
  margin:0;padding:0;
}
.site-nav a{
  font-size:14px;
  letter-spacing:.06em;
  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(--accent);
  color:var(--accent);
}

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

section{padding-top:64px;padding-bottom:64px;}
.rhythm-b{padding-top:80px;padding-bottom:80px;}
.rhythm-c{padding-top:96px;padding-bottom:96px;}
.tone{background:var(--bg-alt);}
.deep{background:var(--bg-deep);color:var(--ink-inv);}
.deep h2,.deep h3{color:var(--ink-inv);}
.deep .label,.deep .num{color:#8fc3dd;}
.deep figcaption{color:#b9c9d6;}
.deep a{color:#f0b39c;}

/* separador: arco corto centrado */
.arc{
  width:100%;
  max-width:calc((var(--maxw) - 48px) / 3);
  height:26px;
  margin:0 auto;
  border-top:1px solid var(--accent2);
  border-radius:200px 200px 0 0;
  opacity:.5;
}
.deep .arc{border-top-color:#8fc3dd;}

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

.hero{padding-top:72px;padding-bottom:88px;}
.hero .axis{padding-top:34px;}
.hero-title{
  grid-column:2 / 12;
  text-align:center;
  max-width:20ch;
  margin:0 auto;
}
.hero-lead{
  grid-column:4 / 10;
  text-align:center;
  margin-top:26px;
  color:var(--ink);
}
.hero-side{
  margin-top:44px;
  font-size:15px;
  line-height:1.65;
  color:var(--ink-soft);
}
.hero-side.left{grid-column:1 / 4;text-align:right;}
.hero-side.right{grid-column:10 / 13;text-align:left;}
.hero-side strong{
  display:block;
  font-family:var(--sans);
  font-size:12px;
  letter-spacing:.18em;
  text-transform:uppercase;
  font-weight:600;
  color:var(--accent2);
  margin-bottom:8px;
}

.figure-axis{
  margin:56px auto 0;
  max-width:680px;
  text-align:center;
}
.figure-axis img{margin:0 auto;}
.figure-axis figcaption{max-width:52ch;margin-left:auto;margin-right:auto;}

/* ---------- composiciones de contenido ---------- */

.sym{grid-column:1 / 13;row-gap:36px;}
.sym > .half-l{grid-column:2 / 6;}
.sym > .half-r{grid-column:8 / 12;}

.narrow{grid-column:4 / 10;}
.centered{text-align:center;}

.offset{grid-column:1 / 8;}      /* 7 columnas, campo derecho vacío */
.offset-r{grid-column:6 / 13;}

.head-axis{grid-column:1 / 13;text-align:center;margin-bottom:38px;}
.head-axis h2{margin-bottom:.4em;}
.head-axis p{max-width:60ch;margin-left:auto;margin-right:auto;color:var(--ink-soft);}

/* listas */
ul.marks,ol.steps{padding-left:0;margin:0 0 1.1em;list-style:none;}
ul.marks li{position:relative;padding-left:22px;margin-bottom:.55em;}
ul.marks li::before{
  content:"";
  position:absolute;left:0;top:.72em;
  width:9px;height:1px;background:var(--accent);
}
.deep ul.marks li::before{background:#f0b39c;}
ol.steps{counter-reset:s;}
ol.steps li{position:relative;padding-left:34px;margin-bottom:.7em;counter-increment:s;}
ol.steps li::before{
  content:counter(s,decimal-leading-zero);
  position:absolute;left:0;top:.15em;
  font-size:12px;letter-spacing:.12em;color:var(--accent2);
}
.deep ol.steps li::before{color:#8fc3dd;}

dl.gloss{margin:0;}
dl.gloss dt{font-family:var(--serif);font-style:italic;font-size:1.08rem;margin-top:1.1em;}
dl.gloss dd{margin:.25em 0 0;color:var(--ink-soft);}

.rule-top{border-top:1px solid rgba(28,30,32,.14);padding-top:22px;}

/* bloque de detalle en sección contrastada */
.detail-grid{grid-column:1 / 13;row-gap:34px;align-items:start;}
.detail-fig{grid-column:1 / 6;}
.detail-fig img{width:100%;}
.detail-txt{grid-column:7 / 13;}

/* tarjetas de texto simétricas (sin decoración) */
.pair{grid-column:1 / 13;row-gap:30px;}
.pair > div{padding-top:20px;border-top:1px solid rgba(28,30,32,.16);}
.pair > div:first-child{grid-column:2 / 6;}
.pair > div:last-child{grid-column:8 / 12;}
.deep .pair > div{border-top-color:rgba(245,244,240,.3);}

/* páginas de texto legal */
.doc{grid-column:3 / 11;}
.doc h2{margin-top:2em;}
.doc h2:first-of-type{margin-top:0;}
.doc h3{margin-top:1.6em;}

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

.site-foot{
  background:var(--bg-alt);
  padding:56px 0 48px;
  text-align:center;
}
.site-foot .arc{border-top-color:var(--accent);margin-bottom:34px;}
.foot-name{
  font-family:var(--serif);
  font-size:1.3rem;
  margin:0 0 18px;
}
.foot-nav ul{
  list-style:none;
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  align-items:center;
  gap:6px 0;
  margin:0 0 20px;padding:0;
  font-size:14px;
}
.foot-nav li + li::before{
  content:"·";
  color:var(--ink-soft);
  margin:0 12px;
}
.foot-nav a{color:var(--ink);text-decoration:none;border-bottom:1px solid transparent;}
.foot-nav a:hover{color:var(--accent);border-bottom-color:var(--accent);}
.foot-mail{margin:0 0 10px;}
.foot-note{
  font-size:13px;
  line-height:1.6;
  color:var(--ink-soft);
  max-width:56ch;
  margin:0 auto;
}

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

@media (max-width:900px){
  .hero-title{grid-column:1 / 13;}
  .hero-lead{grid-column:1 / 13;}
  .hero-side.left,.hero-side.right{grid-column:1 / 13;text-align:center;margin-top:30px;}
  .sym > .half-l,.sym > .half-r{grid-column:1 / 13;}
  .narrow,.offset,.offset-r,.doc{grid-column:1 / 13;}
  .detail-fig,.detail-txt{grid-column:1 / 13;}
  .detail-fig img{max-width:520px;margin:0 auto;}
  .pair > div:first-child,.pair > div:last-child{grid-column:1 / 13;}
}

@media (max-width:640px){
  body{font-size:16.5px;}
  section{padding-top:44px;padding-bottom:44px;}
  .rhythm-b{padding-top:52px;padding-bottom:52px;}
  .rhythm-c{padding-top:56px;padding-bottom:56px;}
  .hero{padding-top:40px;padding-bottom:52px;}
  .hero .axis::before{display:none;}
  .hero .axis{padding-top:0;}
  .figure-axis{margin-top:36px;}
  .arc{max-width:200px;}
  .site-head .wrap{padding-top:18px;padding-bottom:18px;}
  .site-nav ul{gap:6px 16px;}
}