/* Rondorvibe — hoja de estilos común */

:root{
  --bg:#f4f5f7;
  --bg-alt:#ffffff;
  --bg-dark:#23262b;
  --ink:#16181d;
  --ink-soft:#656b75;
  --ink-inv:#f4f5f7;
  --accent:#2d5bd6;
  --accent-2:#c9a00f;
  --serif:Georgia,'Times New Roman',serif;
  --sans:system-ui,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  --pad-y:88px;
  --pad-x:52px;
  --gap:24px;
}

*,*::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:1.8;
  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,
:focus-visible{
  outline:3px solid var(--accent);
  outline-offset:3px;
}

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

.layer{
  padding:var(--pad-y) var(--pad-x);
}

.grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  column-gap:var(--gap);
  max-width:1420px;
  margin:0 auto;
}

/* escalones: 0, 1, 2, 3 columnas de sangría interior */
.step-0 .grid{padding-left:0;}
.step-1 .grid{padding-left:calc((100% - 11 * var(--gap)) / 12 + var(--gap));}
.step-2 .grid{padding-left:calc(2 * ((100% - 11 * var(--gap)) / 12 + var(--gap)));}
.step-3 .grid{padding-left:calc(3 * ((100% - 11 * var(--gap)) / 12 + var(--gap)));}

.col-6{grid-column:span 6;}
.col-5{grid-column:span 5;}
.col-12{grid-column:span 12;}

/* ---------- tonos de sección ---------- */

.tone-base{background:var(--bg);}
.tone-alt{background:var(--bg-alt);}
.tone-dark{background:var(--bg-dark);color:var(--ink-inv);}
.tone-dark h2,.tone-dark h3{color:var(--ink-inv);}
.tone-dark a{color:#ffffff;}
.tone-dark .caption,.tone-dark .lead-note{color:#b3b8c1;}
.tone-dark .num{color:var(--accent-2);}

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

h1,h2,h3{font-family:var(--serif);font-weight:400;margin:0;}

h1{
  font-size:clamp(2.6rem,6.4vw,5.1rem);
  line-height:1.02;
  letter-spacing:-0.015em;
}

h2{
  font-size:clamp(1.5rem,2.6vw,2.05rem);
  line-height:1.18;
  margin-bottom:20px;
}

h3{
  font-size:1.12rem;
  line-height:1.35;
  margin:34px 0 10px;
}

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

.caption{
  font-size:12px;
  line-height:1.6;
  color:var(--ink-soft);
  letter-spacing:0.03em;
  margin:12px 0 0;
}

.num{
  font-family:var(--sans);
  font-size:12px;
  letter-spacing:0.22em;
  text-transform:uppercase;
  color:var(--accent-2);
  display:block;
  margin-bottom:14px;
}

.secondary{color:var(--ink-soft);}

/* ---------- hero: tres capas apiladas ---------- */

.hero{display:block;}

.hero-nav{
  background:var(--bg-alt);
  padding:18px var(--pad-x);
  border-bottom:1px solid rgba(22,24,29,.08);
}

.nav-inner{
  max-width:1420px;
  margin:0 auto;
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:14px 30px;
}

.brand{
  font-family:var(--serif);
  font-size:1.18rem;
  letter-spacing:0.01em;
  color:var(--ink);
  text-decoration:none;
}
.brand:hover{text-decoration:underline;}

.nav-links{
  list-style:none;
  display:flex;
  flex-wrap:wrap;
  gap:8px 24px;
  margin:0;
  padding:0;
  margin-left:auto;
}

.nav-links a{
  font-size:14px;
  color:var(--ink);
  text-decoration:none;
  padding-bottom:2px;
  border-bottom:2px solid transparent;
}
.nav-links a:hover{border-bottom-color:var(--accent);}
.nav-links a[aria-current="page"]{border-bottom-color:var(--accent-2);}

.hero-title{
  background:var(--bg);
  padding:132px var(--pad-x) 44px;
  min-height:46vh;
  display:flex;
  align-items:flex-end;
}

.hero-title .grid{width:100%;}
.hero-title h1{grid-column:1 / span 9;}

.hero-base{
  background:#e9ebef;
  padding:56px var(--pad-x) 60px;
}

.hero-base .lead{grid-column:1 / span 6;font-size:1.06rem;}

.hero-base .topics{
  grid-column:8 / span 5;
  margin:0;
  padding:0;
  list-style:none;
  font-size:14px;
  line-height:1.7;
  color:var(--ink-soft);
}

.hero-base .topics li{
  padding:9px 0 9px 20px;
  border-top:1px solid rgba(22,24,29,.12);
  position:relative;
}
.hero-base .topics li:last-child{border-bottom:1px solid rgba(22,24,29,.12);}
.hero-base .topics li::before{
  content:"";
  position:absolute;
  left:0;
  top:19px;
  width:9px;
  height:2px;
  background:var(--accent);
}

/* ---------- figura principal ---------- */

.figure-main{
  grid-column:4 / span 9;
  margin:0;
}
.figure-main img{width:100%;}

/* ---------- listas de contenido ---------- */

.list{
  margin:0 0 20px;
  padding:0;
  list-style:none;
}
.list li{
  position:relative;
  padding:0 0 12px 24px;
}
.list li::before{
  content:"";
  position:absolute;
  left:0;
  top:12px;
  width:11px;
  height:2px;
  background:var(--accent);
}
.tone-dark .list li::before{background:var(--accent-2);}

ol.list{counter-reset:step;}
ol.list li{padding-left:36px;}
ol.list li::before{
  counter-increment:step;
  content:counter(step,decimal-leading-zero);
  background:none;
  width:auto;
  height:auto;
  top:0;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--accent-2);
  font-family:var(--sans);
}

dl.terms{margin:0;}
dl.terms dt{
  font-family:var(--serif);
  font-size:1.02rem;
  margin-top:22px;
}
dl.terms dd{margin:4px 0 0;color:var(--ink-soft);}

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

.detail-figure{
  grid-column:1 / span 5;
  margin:0;
}
.detail-figure img{width:100%;}

.detail-text{grid-column:7 / span 6;}

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

.mail{
  font-family:var(--serif);
  font-size:clamp(1.3rem,3vw,2rem);
  word-break:break-word;
}

/* ---------- pie de página ---------- */

.site-footer{
  background:var(--bg-dark);
  color:var(--ink-inv);
  padding:64px var(--pad-x) 56px;
  margin-top:0;
}

.footer-inner{max-width:1420px;margin:0 auto;}

.footer-name{
  font-family:var(--serif);
  font-size:clamp(2.6rem,10vw,7rem);
  line-height:.95;
  margin:0 0 56px;
  letter-spacing:-0.02em;
}

.footer-cols{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:36px;
}

.footer-col span.rule{
  display:block;
  width:44px;
  height:2px;
  background:var(--accent-2);
  margin-bottom:16px;
}

.footer-col h2{
  font-family:var(--sans);
  font-size:12px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:#b3b8c1;
  margin:0 0 12px;
}

.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col li{margin-bottom:6px;}
.footer-col a{color:#ffffff;font-size:15px;}
.footer-col p{font-size:14px;color:#b3b8c1;line-height:1.7;}

.footer-bottom{
  margin-top:44px;
  font-size:12px;
  color:#8a919c;
}

/* ---------- páginas internas ---------- */

.page-head{
  background:var(--bg-alt);
  padding:96px var(--pad-x) 52px;
}
.page-head h1{grid-column:1 / span 9;font-size:clamp(2.1rem,4.6vw,3.4rem);}
.page-head .standfirst{
  grid-column:1 / span 6;
  margin-top:26px;
  color:var(--ink-soft);
}

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

@media (max-width:1000px){
  :root{--pad-y:64px;--pad-x:36px;--gap:18px;}
  .hero-title{padding-top:88px;min-height:0;}
  .hero-title h1{grid-column:1 / span 12;}
  .hero-base .lead{grid-column:1 / span 12;}
  .hero-base .topics{grid-column:1 / span 12;margin-top:34px;}
  .figure-main{grid-column:1 / span 12;}
  .detail-figure{grid-column:1 / span 7;}
  .detail-text{grid-column:1 / span 12;margin-top:32px;}
  .col-6,.col-5{grid-column:span 12;}
  .page-head h1,.page-head .standfirst{grid-column:1 / span 12;}
  .step-1 .grid,.step-2 .grid,.step-3 .grid{
    padding-left:calc((100% - 11 * var(--gap)) / 12 + var(--gap));
  }
}

@media (max-width:640px){
  :root{--pad-y:48px;--pad-x:20px;}
  body{font-size:16px;line-height:1.75;}
  .nav-links{margin-left:0;gap:6px 18px;}
  .detail-figure{grid-column:1 / span 12;}
  .footer-cols{grid-template-columns:1fr;gap:30px;}
  .step-1 .grid,.step-2 .grid,.step-3 .grid{padding-left:0;}
  .hero-title{padding-top:60px;}
}