/* Zadirva — folha de estilo comum */

:root{
  --bg:#e9eeeb;
  --bg-alt:#d9e1dd;
  --bg-dark:#1e2a26;
  --ink:#171f1c;
  --ink-soft:#63706b;
  --ink-inv:#e9eeeb;
  --rust:#8f4a28;
  --teal:#3d6f66;
  --serif:Georgia,'Times New Roman',Times,serif;
  --sans:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  --step:84px;
  --pad:40px;
}

*,*::before,*::after{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(--rust);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(--rust);
  outline-offset:3px;
}

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

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

.grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  column-gap:28px;
}

/* ---------- cabeçalho ---------- */

.site-head{
  border-bottom:1px solid rgba(23,31,28,.18);
  padding:22px 0;
}
.site-head .wrap{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:18px 32px;
  justify-content:space-between;
}
.brand{
  font-family:var(--serif);
  font-size:23px;
  letter-spacing:.06em;
  text-transform:uppercase;
  color:var(--ink);
  text-decoration:none;
  font-weight:400;
}
.brand:hover{text-decoration:none;color:var(--rust)}
.site-nav ul{
  list-style:none;margin:0;padding:0;
  display:flex;flex-wrap:wrap;gap:8px 26px;
}
.site-nav a{
  font-family:var(--sans);
  font-size:12px;
  letter-spacing:.09em;
  text-transform:uppercase;
  color:var(--ink);
  text-decoration:none;
  padding-bottom:3px;
  border-bottom:1px solid transparent;
}
.site-nav a:hover,.site-nav a[aria-current="page"]{
  color:var(--rust);
  border-bottom-color:var(--rust);
}

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

.hero{padding:calc(var(--step) * .95) 0 calc(var(--step) * .8)}

.hero h1{
  grid-column:1 / span 8;
  font-size:clamp(34px,5.1vw,60px);
  line-height:1.1;
  font-weight:400;
  margin:0;
  letter-spacing:-.01em;
}
.hero-lede{
  grid-column:1 / span 6;
  margin:34px 0 0;
  font-size:19px;
  color:var(--ink);
}
.hero-lede + .hero-lede{margin-top:18px;color:var(--ink-soft)}

/* coluna-índice */
.index-col{
  grid-column:10 / span 3;
  grid-row:1 / span 3;
  font-family:var(--sans);
  font-size:12px;
  line-height:1.5;
  color:var(--ink-soft);
  border-left:1px solid rgba(61,111,102,.45);
  padding-left:18px;
}
.index-col .index-title{
  text-transform:uppercase;
  letter-spacing:.12em;
  color:var(--teal);
  margin:0 0 14px;
  font-size:11px;
}
.index-col ol{list-style:none;margin:0;padding:0}
.index-col li{margin-bottom:11px}
.index-col a{
  color:var(--ink-soft);
  text-decoration:none;
  display:flex;
  gap:10px;
}
.index-col a:hover{color:var(--rust)}
.index-col .n{color:var(--rust);font-variant-numeric:tabular-nums}

/* ---------- secções ---------- */

.band{padding:var(--step) 0}
.band--alt{background:var(--bg-alt)}
.band--dark{background:var(--bg-dark);color:var(--ink-inv)}
.band--dark h2,.band--dark h3{color:var(--ink-inv)}
.band--dark .cap{color:#9fb0aa}
.band--dark a{color:#d7a77f}
.band--dark .rule{border-color:rgba(233,238,235,.28)}
.band--dark :focus-visible{outline-color:#d7a77f}

.sec-head{
  grid-column:1 / span 7;
  margin:0 0 26px;
}
h2{
  font-size:clamp(25px,2.8vw,33px);
  line-height:1.24;
  font-weight:400;
  margin:0;
  letter-spacing:-.005em;
}
h3{
  font-style:italic;
  font-size:21px;
  font-weight:400;
  line-height:1.35;
  margin:38px 0 10px;
}
.sec-num{
  grid-column:10 / span 3;
  grid-row:1;
  font-family:var(--sans);
  font-size:11px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--teal);
  padding-left:18px;
  border-left:1px solid rgba(61,111,102,.45);
}
.band--dark .sec-num{color:#7ea79d;border-left-color:rgba(126,167,157,.45)}

.col-text{grid-column:1 / span 7}
.col-text > p:first-child{margin-top:0}
.col-text p{margin:0 0 20px}
.col-text p:last-child{margin-bottom:0}

.rule{
  grid-column:1 / span 7;
  border:0;
  border-top:1px solid rgba(23,31,28,.22);
  margin:0 0 30px;
  height:0;
}

/* listas práticas */
.list{
  grid-column:1 / span 7;
  margin:24px 0 0;
  padding:0;
  list-style:none;
}
.list li{
  position:relative;
  padding-left:26px;
  margin-bottom:12px;
}
.list li::before{
  content:"—";
  position:absolute;
  left:0;
  color:var(--rust);
}
.list--num{counter-reset:it}
.list--num li{counter-increment:it;padding-left:38px}
.list--num li::before{
  content:counter(it,decimal-leading-zero);
  font-family:var(--sans);
  font-size:12px;
  color:var(--rust);
  top:5px;
}
.list strong{font-weight:700}

/* tabela-lista de espécies */
.deflist{
  grid-column:1 / span 7;
  margin:24px 0 0;
}
.deflist dt{
  font-style:italic;
  font-size:19px;
  margin-top:20px;
}
.deflist dt:first-child{margin-top:0}
.deflist dd{margin:5px 0 0;color:var(--ink)}

/* ---------- imagens ---------- */

.figure-main{
  grid-column:1 / span 8;
  margin:0;
}
.figure-main img{width:100%}
.cap{
  grid-column:10 / span 3;
  align-self:end;
  font-family:var(--sans);
  font-size:12px;
  line-height:1.5;
  color:var(--ink-soft);
  padding-left:18px;
  border-left:1px solid rgba(61,111,102,.45);
}
.figure-main + .cap{margin-top:0}

.detail-wrap{align-items:start}
.figure-detail{
  grid-column:1 / span 4;
  margin:0;
}
.figure-detail img{width:100%}
.figure-detail figcaption{
  font-family:var(--sans);
  font-size:12px;
  line-height:1.5;
  color:#9fb0aa;
  margin-top:12px;
}
.detail-text{grid-column:6 / span 6}
.detail-text > *:first-child{margin-top:0}

/* ---------- rodapé ---------- */

.site-foot{
  background:var(--bg);
  padding:calc(var(--step) * .75) 0 54px;
  border-top:1px solid rgba(23,31,28,.18);
}
.foot-top{
  display:flex;
  flex-wrap:wrap;
  gap:24px 40px;
  justify-content:space-between;
  align-items:flex-start;
}
.foot-brand{
  font-size:22px;
  letter-spacing:.06em;
  text-transform:uppercase;
  margin:0;
  font-weight:400;
}
.foot-nav ul{
  list-style:none;margin:0;padding:0;
  display:flex;flex-wrap:wrap;gap:8px 26px;
}
.foot-nav a{
  font-family:var(--sans);
  font-size:12px;
  letter-spacing:.09em;
  text-transform:uppercase;
  color:var(--ink-soft);
  text-decoration:none;
}
.foot-nav a:hover{color:var(--rust)}
.foot-line{
  border:0;
  border-top:1px solid rgba(23,31,28,.22);
  margin:28px 0 22px;
}
.foot-mail{margin:0 0 8px;font-size:18px}
.foot-note{
  font-family:var(--sans);
  font-size:12px;
  line-height:1.6;
  color:var(--ink-soft);
  margin:0;
  max-width:62ch;
}

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

.page-head{padding:calc(var(--step) * .8) 0 0}
.page-head h1{
  grid-column:1 / span 8;
  font-size:clamp(30px,4.2vw,48px);
  line-height:1.12;
  font-weight:400;
  margin:0;
}
.page-head .page-lede{
  grid-column:1 / span 6;
  margin:28px 0 0;
  color:var(--ink-soft);
}
.page-body{padding:calc(var(--step) * .7) 0 var(--step)}
.page-body h2{margin-top:0}
.page-body .block{margin-bottom:54px}
.page-body .block:last-child{margin-bottom:0}

.marks{
  grid-column:10 / span 3;
  grid-row:1 / span 2;
  font-family:var(--sans);
  font-size:12px;
  line-height:1.55;
  color:var(--ink-soft);
  border-left:1px solid rgba(61,111,102,.45);
  padding-left:18px;
}
.marks p{margin:0 0 12px}
.marks .m-label{
  text-transform:uppercase;
  letter-spacing:.12em;
  color:var(--teal);
  font-size:11px;
}

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

@media (max-width:1000px){
  :root{--step:62px;--pad:32px}
  .hero h1{grid-column:1 / span 12}
  .hero-lede{grid-column:1 / span 10}
  .page-head h1,.page-head .page-lede{grid-column:1 / span 12}
  .col-text,.sec-head,.list,.deflist,.rule{grid-column:1 / span 12}
  .figure-main{grid-column:1 / span 10}
  .cap,.sec-num{grid-column:1 / span 12;grid-row:auto;margin-top:16px}
  .figure-detail{grid-column:1 / span 6}
  .detail-text{grid-column:1 / span 12;margin-top:30px}
  .index-col,.marks{
    grid-column:1 / span 12;
    grid-row:auto;
    border-left:0;
    border-top:1px solid rgba(61,111,102,.45);
    padding-left:0;
    padding-top:16px;
    margin-top:36px;
  }
  .index-col ol{display:flex;flex-wrap:wrap;gap:6px 22px}
  .index-col li{margin-bottom:0}
  .marks{display:flex;flex-wrap:wrap;gap:4px 26px}
  .marks p{margin:0}
  .sec-num{
    border-left:0;
    border-top:1px solid rgba(61,111,102,.45);
    padding-left:0;
    padding-top:10px;
    order:-1;
    margin-bottom:22px;
    margin-top:0;
  }
}

@media (max-width:640px){
  :root{--step:50px;--pad:20px}
  body{font-size:17px}
  .grid{column-gap:0;row-gap:0}
  .hero{padding:44px 0 34px}
  .hero-lede{font-size:18px}
  .figure-main,.figure-detail{grid-column:1 / span 12}
  .site-head{padding:18px 0}
  .site-head .wrap{gap:12px}
  .site-nav ul{gap:6px 18px}
  .foot-nav ul{gap:6px 18px}
  h3{margin-top:30px}
}