/* Popusagi — hoja de estilos general */

:root{
  --bg:#f4f5f7;
  --paper:#ffffff;
  --dark:#23262b;
  --ink:#16181d;
  --muted:#656b75;
  --blue:#2d5bd6;
  --gold:#c9a00f;
  --serif:Georgia,"Times New Roman",serif;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --gap:28px;
  --pad:32px;
}

*{box-sizing:border-box;}

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

body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--serif);
  font-size:18px;
  line-height:1.65;
  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{outline:3px solid var(--blue);outline-offset:3px;text-decoration:none;}

.wrap{max-width:1240px;margin:0 auto;padding:0 var(--pad);}

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

p{margin:0 0 1.55em;}
p:last-child{margin-bottom:0;}

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

.site-head{border-bottom:1px solid #dcdfe4;background:var(--bg);}
.head-inner{display:flex;flex-wrap:wrap;align-items:baseline;gap:14px 32px;padding-top:22px;padding-bottom:22px;}

.brand{
  font-family:var(--serif);
  font-size:24px;
  letter-spacing:.01em;
  color:var(--ink);
  text-decoration:none;
  border-bottom:3px solid var(--blue);
  padding-bottom:2px;
}
.brand:focus-visible{outline:3px solid var(--blue);outline-offset:4px;}

.nav{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px 26px;}
.nav a{
  font-family:var(--sans);
  font-size:13px;
  letter-spacing:.09em;
  text-transform:uppercase;
  color:var(--muted);
  text-decoration:none;
  padding-bottom:3px;
  border-bottom:2px solid transparent;
}
.nav a:hover{color:var(--ink);border-bottom-color:var(--gold);}
.nav a[aria-current="page"]{color:var(--ink);border-bottom-color:var(--blue);}

/* ---------- bandas y ritmo ---------- */

.band{padding:120px 0;}
.band--tight{padding:56px 0;}
.band--paper{background:var(--paper);}
.band--dark{background:var(--dark);color:var(--bg);}
.band--dark a{color:#9db6f4;}
.band--dark a:focus-visible{outline-color:var(--gold);}

.rule-row{display:grid;grid-template-columns:repeat(12,1fr);column-gap:var(--gap);}
.rule{grid-column:1 / 5;height:3px;background:var(--blue);}
.rule--center{grid-column:5 / 9;}
.rule--right{grid-column:9 / 13;}

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

h1,h2,h3{font-weight:400;margin:0;}

.hero-title{
  font-size:clamp(38px,7.2vw,92px);
  line-height:1.02;
  letter-spacing:-.015em;
  margin:0 0 44px;
}
.hero-title span{display:block;}
.hero-title .step-2{margin-left:8.33%;}
.hero-title .step-3{margin-left:16.66%;}

h2{
  font-size:clamp(27px,3.3vw,40px);
  line-height:1.16;
  letter-spacing:-.01em;
  margin:0 0 26px;
}

h3{
  font-style:italic;
  font-size:23px;
  line-height:1.3;
  margin:38px 0 16px;
}

.label{
  font-family:var(--sans);
  font-size:12px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--gold);
  margin:0 0 18px;
}
.label span{color:var(--muted);}

.lead{font-size:22px;line-height:1.55;}

.note{font-family:var(--sans);font-size:13px;line-height:1.6;color:var(--muted);}

/* ---------- portada ---------- */

.hero{padding:96px 0 72px;}
.hero-inner{border-left:3px solid var(--blue);padding-left:32px;}
.hero-body{grid-column:1 / 6;}
.topics{
  list-style:none;margin:26px 0 0;padding:0;
  display:flex;flex-wrap:wrap;align-items:baseline;
  font-family:var(--sans);font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);
}
.topics li{display:flex;align-items:baseline;}
.topics li + li::before{content:"/";color:var(--gold);margin:0 12px;font-weight:700;}

.figure-main{
  grid-column:5 / 13;
  display:grid;
  grid-template-columns:auto 1fr;
  column-gap:18px;
  margin:0 -32px 0 0;
}
.figure-main figcaption{
  writing-mode:vertical-rl;
  transform:rotate(180deg);
  font-family:var(--sans);
  font-size:12px;
  line-height:1.5;
  letter-spacing:.04em;
  color:var(--muted);
  max-height:420px;
}

/* ---------- columnas de texto ---------- */

.col-5{grid-column:1 / 6;}
.col-6{grid-column:1 / 7;}
.col-7{grid-column:1 / 8;}
.col-7-right{grid-column:6 / 13;}
.col-9{grid-column:1 / 10;}
.col-9-right{grid-column:4 / 13;}
.col-6-right{grid-column:7 / 13;}

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

.checklist{list-style:none;margin:34px 0 0;padding:0;counter-reset:chk;}
.checklist li{
  counter-increment:chk;
  position:relative;
  padding-left:74px;
  margin-bottom:26px;
}
.checklist li:last-child{margin-bottom:0;}
.checklist li::before{
  content:counter(chk,decimal-leading-zero);
  position:absolute;left:0;top:-2px;
  font-family:var(--sans);
  font-size:28px;
  font-weight:700;
  letter-spacing:-.02em;
  color:var(--blue);
}
.checklist strong{font-weight:700;}

.plain{margin:26px 0 0;padding-left:22px;}
.plain li{margin-bottom:12px;}
.plain li::marker{color:var(--blue);}

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

.detail-figure{grid-column:1 / 6;margin:0;}
.detail-figure figcaption{
  font-family:var(--sans);
  font-size:12px;
  line-height:1.55;
  color:#a9afb9;
  margin-top:14px;
}
.detail-text{grid-column:7 / 13;}
.band--dark .label{color:var(--gold);}
.band--dark .label span{color:#a9afb9;}
.band--dark h3{color:#ffffff;}

/* ---------- páginas interiores ---------- */

.page-head{padding:84px 0 0;}
.page-title{
  font-size:clamp(34px,5.6vw,64px);
  line-height:1.06;
  letter-spacing:-.015em;
  border-left:3px solid var(--blue);
  padding-left:28px;
  margin:0 0 36px;
}

.about-block{display:grid;grid-template-columns:repeat(12,1fr);column-gap:var(--gap);margin-top:64px;}
.about-block h2{grid-column:1 / 4;font-size:clamp(24px,2.6vw,30px);}
.about-block .about-text{grid-column:4 / 10;}

.legal-block{margin-top:54px;}
.legal-block h2{font-size:clamp(24px,2.6vw,31px);}

.contact-line{font-size:21px;margin-top:20px;}

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

.site-foot{border-top:6px solid var(--blue);background:var(--bg);padding:52px 0 64px;margin-top:0;}
.foot-name{
  font-size:clamp(44px,10vw,116px);
  line-height:1;
  letter-spacing:-.02em;
  margin:0 0 34px;
}
.foot-grid{display:grid;grid-template-columns:repeat(12,1fr);column-gap:var(--gap);border-top:1px solid #dcdfe4;padding-top:26px;}
.foot-nav{grid-column:1 / 6;}
.foot-info{grid-column:7 / 13;}
.foot-list{list-style:none;margin:0;padding:0;display:grid;gap:10px;}
.foot-list a{
  font-family:var(--sans);font-size:13px;letter-spacing:.06em;color:var(--muted);text-decoration:none;
}
.foot-list a:hover{color:var(--blue);text-decoration:underline;}
.foot-mail{font-size:20px;margin:0 0 12px;}
.foot-note{font-family:var(--sans);font-size:12.5px;line-height:1.65;color:var(--muted);margin:0;}
.foot-note + .foot-note{margin-top:10px;}

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

@media (max-width:900px){
  :root{--gap:20px;--pad:22px;}
  body{font-size:17px;}
  .band{padding:64px 0;}
  .band--tight{padding:40px 0;}
  .hero{padding:56px 0 44px;}
  .hero-inner{padding-left:20px;}
  .hero-title{margin-bottom:30px;}
  .hero-title .step-2{margin-left:6%;}
  .hero-title .step-3{margin-left:12%;}
  .grid > *{grid-column:1 / -1 !important;}
  .figure-main{margin-right:0;grid-template-columns:1fr;}
  .figure-main figcaption{
    writing-mode:horizontal-tb;transform:none;max-height:none;margin-top:12px;
  }
  .detail-figure{margin-bottom:34px;}
  .rule{grid-column:1 / 7 !important;}
  .rule--center{grid-column:4 / 10 !important;}
  .rule--right{grid-column:7 / 13 !important;}
  .about-block{margin-top:46px;}
  .about-block h2,.about-block .about-text{grid-column:1 / -1;}
  .about-block h2{margin-bottom:18px;}
  .page-head{padding-top:52px;}
  .page-title{padding-left:20px;}
  .checklist li{padding-left:56px;}
  .checklist li::before{font-size:23px;}
  .foot-grid{grid-template-columns:1fr;row-gap:30px;}
  .foot-nav,.foot-info{grid-column:1 / -1;}
  .lead{font-size:20px;}
}

@media (max-width:520px){
  .head-inner{gap:12px 18px;}
  .nav{gap:8px 16px;}
  .nav a{font-size:12px;letter-spacing:.06em;}
  .topics{font-size:12px;}
}