/* Kerdarapi — folha de estilo única */

:root{
  --paper:#f4f0e8;
  --paper-alt:#e7e1d5;
  --sheet:#faf8f2;
  --ink:#22201b;
  --ink-soft:#776f62;
  --dark:#20242a;
  --blue:#2c4668;
  --ochre:#a06a2c;
  --line:rgba(44,70,104,.28);
  --line-soft:rgba(119,111,98,.35);
  --gap:28px;
}

*{box-sizing:border-box;}

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

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:system-ui,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  font-size:17px;
  line-height:1.7;
  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;}

/* ---------- folha / подложка ---------- */

.sheet{
  max-width:1180px;
  margin:40px auto 0;
  padding:0;
  background:var(--sheet);
  border:1px solid var(--line);
}

.sheet-inner{padding:40px 44px 56px;}

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

.col-7{grid-column:span 7;}
.col-6{grid-column:span 6;}
.col-5{grid-column:span 5;}
.col-4{grid-column:span 4;}
.col-8{grid-column:span 8;}
.col-12{grid-column:1 / -1;}
.push-right{grid-column:9 / span 4;}

/* ---------- navegação ---------- */

.masthead{
  max-width:1180px;
  margin:0 auto;
  padding:22px 44px 0;
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  justify-content:space-between;
  gap:12px 28px;
}

.masthead .brand{
  font-size:19px;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--ink);
  text-decoration:none;
}

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

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

.nav a{
  font-size:14px;
  color:var(--ink);
  text-decoration:none;
  padding-bottom:3px;
  border-bottom:1px solid transparent;
}

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

/* ---------- tipografia ---------- */

h1{
  font-size:clamp(34px,5.2vw,62px);
  line-height:1.03;
  letter-spacing:-.035em;
  font-weight:700;
  margin:0 0 10px;
}

h2{
  font-size:clamp(23px,2.4vw,29px);
  line-height:1.2;
  letter-spacing:-.015em;
  font-weight:700;
  margin:0 0 16px;
}

h3{
  font-size:19px;
  line-height:1.35;
  font-weight:700;
  margin:26px 0 10px;
}

p{margin:0 0 18px;max-width:68ch;}

.lead{font-size:19px;}

.note{
  font-size:13px;
  line-height:1.55;
  color:var(--ink-soft);
}

.snum{
  font-size:13px;
  color:var(--ochre);
  letter-spacing:.06em;
  display:block;
  margin-bottom:6px;
}

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

.hero{padding-bottom:10px;}

.hero-head{align-items:start;}

.hero h1{grid-column:span 8;}

.hero .facts{grid-column:9 / span 4;}

.facts{
  border:1px solid var(--line-soft);
  padding:16px 18px;
  background:transparent;
}

.facts dl{margin:0;}
.facts div{
  display:flex;
  gap:10px;
  justify-content:space-between;
  padding:7px 0;
  border-bottom:1px solid rgba(119,111,98,.22);
  font-size:13px;
  line-height:1.5;
}
.facts div:last-child{border-bottom:0;padding-bottom:0;}
.facts div:first-child{padding-top:0;}
.facts dt{color:var(--ink-soft);margin:0;}
.facts dd{margin:0;text-align:right;font-weight:600;}

.hero-body{margin-top:38px;align-items:start;}

.figure-main{grid-column:span 5;}
.figure-main img{border:1px solid var(--line-soft);width:100%;}

.figure-main figcaption,
.figure-side{
  font-size:13px;
  line-height:1.55;
  color:var(--ink-soft);
}

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

/* ---------- secções ---------- */

.section{margin-top:88px;}

.section-alt{
  background:var(--paper-alt);
  margin-left:-44px;
  margin-right:-44px;
  padding:44px 44px 46px;
}

.aside-box{
  border:1px solid var(--line-soft);
  padding:16px 18px;
  font-size:14px;
  line-height:1.6;
}

.aside-box h3{
  margin:0 0 10px;
  font-size:14px;
  letter-spacing:.02em;
  color:var(--ochre);
}

.aside-box ul{margin:0;padding-left:18px;}
.aside-box li{margin-bottom:8px;}
.aside-box li:last-child{margin-bottom:0;}

.checklist{
  margin:0 0 18px;
  padding-left:20px;
  max-width:68ch;
}
.checklist li{margin-bottom:10px;}
.checklist li::marker{color:var(--blue);}

ol.steps{
  margin:0 0 18px;
  padding-left:22px;
  max-width:68ch;
}
ol.steps li{margin-bottom:10px;}
ol.steps li::marker{color:var(--ochre);font-weight:700;}

/* ---------- separador com serifas ---------- */

.rule{
  position:relative;
  height:1px;
  background:var(--line-soft);
  margin:88px 0 0;
}
.rule::before,
.rule::after{
  content:"";
  position:absolute;
  top:-5px;
  width:1px;
  height:11px;
  background:var(--ochre);
}
.rule::before{left:0;}
.rule::after{right:0;}

.rule + .section{margin-top:48px;}

/* ---------- secção contrastante ---------- */

.section-dark{
  background:var(--dark);
  color:var(--paper);
  margin:88px -44px 0;
  padding:52px 44px 56px;
}

.section-dark h2{color:var(--paper);}
.section-dark p{color:#ddd7cb;}
.section-dark .snum{color:#c99a5e;}
.section-dark a{color:#b9cae6;}

.figure-detail{grid-column:2 / span 4;margin:0;}
.figure-detail img{border:1px solid rgba(244,240,232,.25);width:100%;}
.figure-detail figcaption{
  font-size:13px;
  line-height:1.55;
  color:#a49c8f;
}

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

.dark-list{margin:0;padding-left:20px;color:#ddd7cb;}
.dark-list li{margin-bottom:10px;}
.dark-list li::marker{color:#c99a5e;}

/* ---------- tabela de valores ---------- */

.datatable{
  width:100%;
  border-collapse:collapse;
  font-size:14px;
  margin:0 0 18px;
}
.datatable caption{
  text-align:left;
  font-size:13px;
  color:var(--ink-soft);
  padding-bottom:8px;
}
.datatable th,
.datatable td{
  text-align:left;
  padding:9px 12px 9px 0;
  border-bottom:1px solid var(--line-soft);
  vertical-align:top;
}
.datatable th{font-weight:600;}
.table-wrap{overflow-x:auto;}

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

.page-head{margin-bottom:34px;}
.page-head h1{font-size:clamp(30px,4.2vw,48px);}
.page-head p{max-width:62ch;}

.prose h2{margin-top:44px;}
.prose h2:first-of-type{margin-top:0;}
.prose ul{padding-left:20px;max-width:66ch;}
.prose li{margin-bottom:9px;}

.side-stack{grid-column:9 / span 4;display:flex;flex-direction:column;gap:22px;}
.prose-col{grid-column:span 7;}

/* ---------- rodapé ---------- */

.site-footer{
  max-width:1180px;
  margin:64px auto 48px;
  padding:0 44px;
}

.footer-top{
  display:flex;
  flex-wrap:wrap;
  gap:8px 24px;
  justify-content:space-between;
  align-items:baseline;
  padding-bottom:14px;
}

.footer-top .fname{font-weight:700;font-size:17px;}

.footer-line{
  height:1px;
  background:var(--line-soft);
  position:relative;
}
.footer-line::before,
.footer-line::after{
  content:"";
  position:absolute;
  top:-4px;
  width:1px;
  height:9px;
  background:var(--ochre);
}
.footer-line::before{left:0;}
.footer-line::after{right:0;}

.footer-nav ul{
  list-style:none;
  margin:16px 0 12px;
  padding:0;
  display:flex;
  flex-wrap:wrap;
  gap:8px 22px;
}
.footer-nav a{font-size:14px;color:var(--ink);text-decoration:none;border-bottom:1px solid transparent;}
.footer-nav a:hover{border-bottom-color:var(--blue);color:var(--blue);}

.footer-note{font-size:13px;color:var(--ink-soft);max-width:62ch;margin:0;}

/* ---------- responsivo ---------- */

@media (max-width:1000px){
  .sheet-inner{padding:32px 30px 44px;}
  .masthead{padding:20px 30px 0;}
  .site-footer{padding:0 30px;}
  .section-alt{margin-left:-30px;margin-right:-30px;padding:36px 30px 38px;}
  .section-dark{margin-left:-30px;margin-right:-30px;padding:44px 30px 46px;}
  .hero-text{grid-column:7 / span 6;}
}

@media (max-width:820px){
  body{font-size:16.5px;}
  .sheet{margin:16px 14px 0;max-width:none;}
  .sheet-inner{padding:26px 20px 36px;}
  .masthead{padding:18px 20px 0;}
  .site-footer{margin:44px auto 34px;padding:0 20px;}
  .grid{grid-template-columns:1fr;gap:22px;}
  .col-7,.col-6,.col-5,.col-4,.col-8,.col-12,
  .push-right,.hero h1,.hero .facts,.figure-main,.hero-text,
  .figure-detail,.dark-text,.side-stack,.prose-col{grid-column:1 / -1;}
  .figure-main{max-width:420px;}
  .figure-detail{max-width:420px;}
  .section{margin-top:52px;}
  .rule{margin-top:52px;}
  .rule + .section{margin-top:32px;}
  .section-alt{margin-left:-20px;margin-right:-20px;padding:30px 20px 32px;}
  .section-dark{margin:52px -20px 0;padding:36px 20px 40px;}
  .hero-body{margin-top:28px;}
  .nav ul{gap:6px 16px;}
}