/* Mumotro — hoja de estilo común */

:root{
  --bg:#eceff1;
  --bg-alt:#dde3e7;
  --bg-dark:#1f2a33;
  --ink:#151c22;
  --ink-soft:#606d78;
  --ink-light:#eceff1;
  --accent:#a2472c;
  --accent2:#3f6b86;
  --line:#b6c0c7;
  --line-dark:#3d4a55;
  --sans:system-ui,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --serif:Georgia,"Times New Roman",serif;
  --gap:72px;
}

*{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:1.7;
  overflow-x:hidden;
}

.wrap{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding:0 24px;
}

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

h1,h2,h3,.label,.num,nav a,.sans{font-family:var(--sans);}

h1{
  font-size:clamp(2.1rem,5.6vw,4rem);
  line-height:.98;
  letter-spacing:-.035em;
  font-weight:800;
  margin:0;
}

h2{
  font-size:clamp(1.45rem,2.6vw,2.05rem);
  line-height:1.08;
  letter-spacing:-.02em;
  font-weight:800;
  margin:0 0 18px;
}

h3{
  font-size:1.06rem;
  line-height:1.25;
  letter-spacing:-.005em;
  font-weight:700;
  text-transform:uppercase;
  margin:32px 0 12px;
}

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

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

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

.num{
  display:block;
  font-size:.78rem;
  font-weight:700;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--accent2);
  margin-bottom:10px;
}

.label{
  font-size:.78rem;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--accent2);
}

.cap{
  font-family:var(--sans);
  font-size:.84rem;
  line-height:1.5;
  color:var(--ink-soft);
}

.lead{font-size:1.06rem;}

/* ---------- separador de trama ---------- */

.weave{margin:0 0 40px;}
.weave::before{content:"";display:block;height:2px;background:var(--accent);}
.weave::after{content:"";display:block;height:1px;background:var(--accent2);margin-top:6px;}

.weave--dark::before{background:var(--accent);}
.weave--dark::after{background:#6f93a8;}

/* ---------- rejilla de celdas ---------- */

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

.cells > *{
  border:1px solid var(--line);
  margin:0 -1px -1px 0;
  padding:26px;
  min-width:0;
}

.c3{grid-column:span 3;}
.c4{grid-column:span 4;}
.c5{grid-column:span 5;}
.c6{grid-column:span 6;}
.c7{grid-column:span 7;}
.c8{grid-column:span 8;}
.c9{grid-column:span 9;}
.c12{grid-column:span 12;}

.cell-void{background:transparent;}
.cell-pad{background:var(--bg-alt);}

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

.site-head{
  border-bottom:2px solid var(--ink);
  background:var(--bg);
}

.site-head .wrap{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:10px 28px;
  padding-top:18px;
  padding-bottom:16px;
}

.brand{
  font-family:var(--sans);
  font-weight:800;
  font-size:1.18rem;
  letter-spacing:-.02em;
  color:var(--ink);
  text-decoration:none;
  margin-right:auto;
}

.brand:hover{color:var(--accent);}

.site-nav ul{
  list-style:none;
  display:flex;
  flex-wrap:wrap;
  gap:6px 22px;
  margin:0;
  padding:0;
}

.site-nav a{
  font-size:.86rem;
  font-weight:600;
  letter-spacing:.04em;
  text-transform:uppercase;
  color:var(--ink);
  text-decoration:none;
  padding-bottom:3px;
  border-bottom:2px solid transparent;
}

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

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

.hero{padding:0 0 var(--gap);}

.hero-rule{height:2px;background:var(--ink);}

.hero-title{
  padding:40px 0 38px;
}

.hero-title h1{max-width:none;}

.hero .cells{margin-top:44px;}

.hero-list{list-style:none;margin:0;padding:0;font-family:var(--sans);font-size:.95rem;line-height:1.5;}
.hero-list li{position:relative;padding-left:20px;margin-bottom:10px;}
.hero-list li:last-child{margin-bottom:0;}
.hero-list li::before{
  content:"";position:absolute;left:0;top:.5em;
  width:8px;height:8px;background:var(--accent);
}

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

section{padding:var(--gap) 0;}
.band{background:var(--bg-alt);}
.section-body{max-width:none;}

.figure-cell{padding:0;}
.figure-cell img{display:block;width:100%;height:auto;}

.dark{
  background:var(--bg-dark);
  color:var(--ink-light);
}
.dark h2{color:var(--ink-light);}
.dark .cap{color:#a9b7c1;}
.dark .num{color:#7fa5bb;}
.dark a{color:#e0a68f;}
.dark .cells > *{border-color:var(--line-dark);}
.dark .check li::before{background:#e0a68f;}

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

.check{
  list-style:none;
  margin:0;
  padding:0;
  font-family:var(--sans);
  font-size:.97rem;
  line-height:1.5;
}
.check li{position:relative;padding-left:22px;margin-bottom:14px;}
.check li:last-child{margin-bottom:0;}
.check li::before{
  content:"";position:absolute;left:0;top:.45em;
  width:9px;height:9px;background:var(--accent);
}
.check strong{font-weight:700;}

.steps{
  margin:0;
  padding-left:22px;
  font-size:.98rem;
}
.steps li{margin-bottom:12px;}
.steps li::marker{color:var(--accent2);font-family:var(--sans);font-weight:700;}

/* ---------- composición «sobre» / páginas de texto ---------- */

.split{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  column-gap:0;
}

.split-side{
  grid-column:span 3;
  border-right:1px solid var(--line);
  padding-right:26px;
}

.split-main{
  grid-column:span 8;
  grid-column-start:5;
  padding-left:4px;
}

.marks{list-style:none;margin:0;padding:0;}
.marks li{position:relative;padding-left:20px;margin-bottom:16px;font-family:var(--sans);font-size:.84rem;font-weight:600;letter-spacing:.09em;text-transform:uppercase;line-height:1.4;color:var(--ink-soft);}
.marks li::before{content:"";position:absolute;left:0;top:.4em;width:8px;height:8px;background:var(--accent2);}

.split-main h2{margin-top:40px;}
.split-main h2:first-child{margin-top:0;}

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

.site-foot{
  border-top:2px solid var(--ink);
  background:var(--bg);
  padding:0 0 48px;
}

.site-foot .cells{margin-top:40px;}
.site-foot .cells > *{padding:22px;}

.foot-nav ul{list-style:none;margin:0;padding:0;font-family:var(--sans);font-size:.9rem;line-height:1.6;}
.foot-nav a{color:var(--ink);text-decoration:none;border-bottom:1px solid var(--line);}
.foot-nav a:hover{color:var(--accent);border-bottom-color:var(--accent);}

.foot-name{font-family:var(--sans);font-weight:800;font-size:1.12rem;letter-spacing:-.02em;}

.foot-note{font-size:.9rem;line-height:1.55;color:var(--ink-soft);}

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

@media (max-width:900px){
  :root{--gap:44px;}
  body{font-size:17px;}
  .wrap{padding:0 18px;}

  .cells > *{padding:20px;}
  .c3,.c4,.c5,.c6,.c7,.c8,.c9{grid-column:span 12;}
  .cell-void{display:none;}

  .hero-title{padding:28px 0 26px;}
  .hero .cells{margin-top:30px;}

  .split{display:block;}
  .split-side{
    border-right:0;
    border-bottom:1px solid var(--line);
    padding:0 0 22px;
    margin-bottom:30px;
  }
  .split-main{padding-left:0;}
  .marks{display:flex;flex-wrap:wrap;gap:6px 24px;}
  .marks li{margin-bottom:6px;}

  .site-nav ul{gap:6px 16px;}
  .site-nav a{font-size:.8rem;}
}

@media (max-width:520px){
  .brand{font-size:1.05rem;}
  h3{margin-top:26px;}
}