/* Trobande — folha de estilo geral */

:root{
  --bg:#f4f0e8;
  --bg-alt:#e7e1d5;
  --bg-dark:#20242a;
  --ink:#22201b;
  --ink-soft:#776f62;
  --ink-invert:#f4f0e8;
  --accent:#2c4668;
  --accent-2:#a06a2c;
  --rule:rgba(119,111,98,.34);
  --serif:Georgia,'Times New Roman',serif;
  --sans:system-ui,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  --gap:24px;
  --rhythm:76px;
}

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

/* ---------- grelha ---------- */

.wrap{
  max-width:1180px;
  margin:0 auto;
  padding:0 22px;
}

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

.rail{
  grid-column:1 / 2;
  font-size:12px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--accent-2);
  line-height:1.5;
  padding-top:.5em;
}

.col-text{grid-column:2 / 8}
.col-wide{grid-column:2 / 10}
.col-full{grid-column:2 / 13}

/* ---------- cabeçalho / navegação ---------- */

.site-head{
  border-bottom:1px solid var(--rule);
  background:var(--bg);
}
.site-head .wrap{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:10px 28px;
  padding-top:20px;
  padding-bottom:18px;
}
.brand{
  font-family:var(--serif);
  font-size:23px;
  letter-spacing:.02em;
  color:var(--ink);
  text-decoration:none;
}
.brand:hover{text-decoration:none;color:var(--accent)}
.site-nav ul{
  list-style:none;
  margin:0;padding:0;
  display:flex;
  flex-wrap:wrap;
  gap:6px 20px;
}
.site-nav a{
  font-size:14px;
  letter-spacing:.03em;
  color:var(--ink);
  text-decoration:none;
  padding-bottom:2px;
  border-bottom:1px solid transparent;
}
.site-nav a:hover,.site-nav a[aria-current="page"]{
  color:var(--accent);
  border-bottom-color:var(--accent);
}

/* ---------- herói ---------- */

.hero{
  padding-top:var(--rhythm);
  padding-bottom:calc(var(--rhythm) - 16px);
  position:relative;
}
.hero .grid{align-items:start}

.spine{
  grid-column:1 / 2;
  align-self:stretch;
  min-height:190px;
  border-left:1px solid var(--rule);
  background:
    repeating-linear-gradient(
      to bottom,
      var(--accent) 0 11px,
      transparent 11px 27px
    ) left top / 14px 100% no-repeat;
  background-position:2px 6px;
}

.hero-body{grid-column:2 / 11}

h1{
  font-family:var(--serif);
  font-weight:400;
  font-size:clamp(30px,4.4vw,50px);
  line-height:1.16;
  letter-spacing:-.005em;
  margin:0 0 22px;
  max-width:19ch;
}
h1 .line2{display:block;color:var(--ink)}

.double-rule{
  border:0;
  height:4px;
  margin:0 0 22px;
  max-width:280px;
  border-top:1px solid var(--ink);
  border-bottom:1px solid var(--rule);
}

.hero-sub{
  font-size:19px;
  line-height:1.66;
  max-width:58ch;
  color:var(--ink);
  margin:0;
}

.kicker{
  font-family:var(--sans);
  font-size:12px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--accent-2);
  margin:0 0 14px;
}

/* ---------- secções ---------- */

.sec{
  padding-top:var(--rhythm);
  padding-bottom:var(--rhythm);
}
.sec--alt{background:var(--bg-alt)}

.sec-head{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  column-gap:var(--gap);
  border-bottom:1px solid var(--rule);
  padding-bottom:8px;
  margin-bottom:30px;
}
.sec-head .rail{padding-top:0}

h2{
  grid-column:2 / 11;
  font-family:var(--serif);
  font-weight:400;
  font-size:clamp(23px,2.6vw,31px);
  line-height:1.26;
  margin:0;
}

h3{
  font-family:var(--serif);
  font-style:italic;
  font-weight:400;
  font-size:20px;
  line-height:1.4;
  margin:34px 0 10px;
}

p{margin:0 0 18px}
.sec p:last-child{margin-bottom:0}

.lead{
  grid-column:2 / 10;
  font-size:20px;
  line-height:1.62;
  margin-bottom:24px;
}

/* listas práticas */

ul.check,ol.steps{
  margin:6px 0 22px;
  padding-left:0;
  list-style:none;
}
ul.check li{
  position:relative;
  padding-left:26px;
  margin-bottom:9px;
}
ul.check li::before{
  content:"";
  position:absolute;
  left:0;top:.76em;
  width:13px;height:2px;
  background:var(--accent);
}
ol.steps{counter-reset:s}
ol.steps li{
  counter-increment:s;
  position:relative;
  padding-left:34px;
  margin-bottom:11px;
}
ol.steps li::before{
  content:counter(s,decimal-leading-zero);
  position:absolute;left:0;top:0;
  font-size:12px;
  letter-spacing:.1em;
  color:var(--accent-2);
  line-height:2.1;
}

.note{
  font-size:15px;
  color:var(--ink-soft);
  line-height:1.62;
}

/* separador tipográfico */

.marks{
  display:flex;
  justify-content:center;
  gap:11px;
  margin:0;
  padding:0;
}
.marks span{
  display:block;
  width:20px;height:2px;
  background:var(--accent-2);
}
.sep{padding:14px 0}

/* ---------- imagem principal ---------- */

.fig-main{
  grid-column:6 / 13;
  margin:0;
}
.fig-main img{width:100%;aspect-ratio:3/2;object-fit:cover}
.fig-main figcaption,
.fig-detail figcaption{
  font-size:12px;
  letter-spacing:.07em;
  color:var(--ink-soft);
  margin-top:10px;
  text-align:left;
  max-width:46ch;
  line-height:1.6;
}
.fig-side{
  grid-column:2 / 6;
  align-self:end;
  padding-bottom:6px;
}
.fig-side p{font-size:15px;color:var(--ink-soft);margin:0}

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

.sec--dark{
  background:var(--bg-dark);
  color:var(--ink-invert);
}
.sec--dark h2,.sec--dark h3{color:var(--ink-invert)}
.sec--dark .sec-head{border-bottom-color:rgba(244,240,232,.24)}
.sec--dark .rail{color:#c9a273}
.sec--dark a{color:#9db6d8}
.sec--dark ul.check li::before{background:#9db6d8}
.sec--dark .note,.sec--dark figcaption{color:#b3aa9c}
.sec--dark :focus-visible{outline-color:#9db6d8}

.fig-detail{
  grid-column:2 / 6;
  margin:0;
}
.fig-detail img{width:100%;aspect-ratio:4/5;object-fit:cover}
.dark-text{grid-column:7 / 13}

/* ---------- páginas de texto ---------- */

.page-body{padding-top:var(--rhythm);padding-bottom:var(--rhythm)}
.page-body .col-text h2{grid-column:auto}
.prose h2{
  grid-column:auto;
  margin:34px 0 12px;
  font-size:24px;
}
.prose > :first-child{margin-top:0}

.dropcap::first-letter{
  float:left;
  font-family:var(--serif);
  font-size:66px;
  line-height:.86;
  padding:6px 12px 0 0;
  color:var(--accent);
}

.contact-line{
  font-family:var(--serif);
  font-size:20px;
  line-height:1.6;
  margin:0 0 6px;
}

/* ---------- rodapé ---------- */

.site-foot{
  border-top:1px solid var(--rule);
  background:var(--bg-alt);
  padding:44px 0 52px;
  text-align:center;
}
.foot-name{
  font-family:var(--serif);
  font-size:21px;
  margin:0 0 14px;
}
.foot-nav ul{
  list-style:none;
  margin:0 0 16px;
  padding:0;
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  align-items:center;
  gap:8px 0;
}
.foot-nav li + li::before{
  content:"";
  display:inline-block;
  width:1px;height:13px;
  background:var(--rule);
  margin:0 14px;
  vertical-align:-2px;
}
.foot-nav a{font-size:14px;color:var(--ink);text-decoration:none}
.foot-nav a:hover{color:var(--accent);text-decoration:underline}
.foot-mail{margin:0 0 10px;font-size:16px}
.foot-note{
  margin:0 auto;
  max-width:56ch;
  font-size:13px;
  line-height:1.65;
  color:var(--ink-soft);
}

/* ---------- adaptação ---------- */

@media (max-width:1000px){
  .hero-body{grid-column:2 / 13}
  h2{grid-column:2 / 13}
  .lead,.col-text,.col-wide{grid-column:2 / 13}
  .fig-main{grid-column:4 / 13}
  .fig-side{grid-column:2 / 4}
  .fig-detail{grid-column:2 / 7}
  .dark-text{grid-column:7 / 13}
}

@media (max-width:760px){
  :root{--rhythm:46px;--gap:16px}
  body{font-size:16.5px}
  .grid,.sec-head{grid-template-columns:1fr}
  .rail{grid-column:auto;margin-bottom:6px}
  .hero-body,.col-text,.col-wide,.col-full,.lead,
  h2,.fig-main,.fig-side,.fig-detail,.dark-text{grid-column:auto}
  .spine{
    grid-column:auto;
    min-height:0;
    height:14px;
    width:100%;
    border-left:0;
    margin-bottom:20px;
    background:repeating-linear-gradient(
      to right,
      var(--accent) 0 11px,
      transparent 11px 27px
    ) left top / 100% 100% no-repeat;
  }
  .fig-side{margin-top:18px}
  .fig-detail{margin-bottom:24px}
  .hero-sub,.lead{font-size:18px}
  .site-head .wrap{gap:8px 18px}
  .dropcap::first-letter{font-size:52px}
}