/* CBF Indústria de Gusa — desempenho ambiental
   Editorial, não cartões. Regras: nenhuma borda fechada em bloco de conteúdo,
   hairline só no topo, fotografia sangrando até a borda, escala tipográfica
   fazendo a hierarquia. Verde apenas onde há dado ambiental. */

:root{
  --navy-deep:#0B1B3A;
  --navy:#132B5C;
  --navy-mark:#263868;
  --paper:#FBFBFA;
  --forest:#1B6E47;
  --mint:#8FD3AE;

  /* tokens de superfície — sobrescritos em .sec--dark */
  --bg:var(--paper);
  --fg:#101E38;
  --muted:#5D6A80;
  --rule:#DCE0E7;
  --accent:var(--forest);

  --wrap:1180px;
  --gut:28px;
  /* distância da borda do .wrap até a borda da viewport — usada para sangrar imagens */
  --edge:calc((100vw - min(100vw,var(--wrap)))/2 + var(--gut));
  --sans:"Source Sans 3",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --disp:"Archivo",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:70px;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--paper);color:#101E38;
  font:400 17.5px/1.68 var(--sans);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
h1,h2,h3{font-family:var(--disp);font-weight:800;letter-spacing:-.028em;line-height:1.1;margin:0}
p{margin:0}
a{color:inherit}
sub{font-size:.68em}
i{font-style:normal}
img{display:block;max-width:100%;height:auto}
table{border-collapse:collapse}
dl,dd{margin:0}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 var(--gut)}

.skip{position:absolute;left:-9999px;top:0;z-index:99;background:var(--navy);color:#fff;padding:12px 18px}
.skip:focus{left:0}
:focus-visible{outline:2px solid var(--forest);outline-offset:3px}
.sec--dark :focus-visible,.cta :focus-visible,.hero :focus-visible{outline-color:var(--mint)}

/* ---------- botões ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  font:600 16px/1 var(--disp);padding:15px 24px;border-radius:3px;
  text-decoration:none;border:1px solid transparent;
  transition:background .18s,border-color .18s,color .18s;
}
.btn--primary{background:var(--mint);color:#0B2A19}
.btn--primary:hover{background:#A9E0C2}
.btn--ghost{border-color:rgba(255,255,255,.34);color:#fff}
.btn--ghost:hover{border-color:#fff;background:rgba(255,255,255,.08)}

/* ---------- nav ---------- */
.nav{
  position:sticky;top:0;z-index:50;color:#fff;
  background:rgba(11,27,58,.9);backdrop-filter:saturate(150%) blur(12px);
  border-bottom:1px solid rgba(255,255,255,.1);
}
.nav__in{display:flex;align-items:center;gap:24px;min-height:62px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex:none}
.brand__mark{width:29px;height:29px;color:#fff;flex:none}
.brand__mark path{fill:var(--navy-deep);stroke:var(--navy-deep)}
.brand__txt{display:flex;flex-direction:column;line-height:1}
.brand__txt b{font:800 19px/1 var(--disp);letter-spacing:.02em}
.brand__txt i{font:500 9px/1 var(--disp);letter-spacing:.17em;text-transform:uppercase;opacity:.66;margin-top:3px}

.nav__links{display:flex;gap:24px;margin-left:auto}
.nav__links a{
  font:500 14.5px/1 var(--sans);text-decoration:none;color:rgba(255,255,255,.72);
  padding:5px 0;border-bottom:2px solid transparent;transition:color .18s,border-color .18s;
}
.nav__links a:hover{color:#fff}
.nav__links a.on{color:#fff;border-bottom-color:var(--mint)}

.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;padding:8px;cursor:pointer;margin-left:auto}
.burger span{display:block;width:22px;height:2px;background:#fff;transition:transform .2s,opacity .2s}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile{background:var(--navy-deep);border-top:1px solid rgba(255,255,255,.1)}
.mobile .wrap{display:flex;flex-direction:column;padding-top:6px;padding-bottom:18px}
.mobile a{padding:13px 0;text-decoration:none;color:rgba(255,255,255,.86);font-weight:500;border-bottom:1px solid rgba(255,255,255,.08)}
.mobile a:last-child{border-bottom:0}

/* ---------- hero ---------- */
.hero{position:relative;min-height:min(92vh,880px);display:flex;flex-direction:column;justify-content:flex-end;color:#fff;overflow:hidden}
.hero__bg{
  position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(11,27,58,.80) 0%,rgba(11,27,58,.58) 34%,rgba(11,27,58,.93) 100%),
    linear-gradient(90deg,rgba(11,27,58,.75) 0%,rgba(11,27,58,.12) 72%),
    url("../img/hero.jpg") center 42%/cover no-repeat;
}
.hero__in{position:relative;padding:130px var(--gut) 54px}
.eyebrow{
  font:600 12px/1 var(--disp);letter-spacing:.2em;text-transform:uppercase;
  color:var(--mint);margin-bottom:26px;
}
.hero h1{font-size:clamp(36px,5.1vw,62px);font-weight:900;letter-spacing:-.035em;max-width:15em}
.hero h1 em{font-style:normal;color:var(--mint)}
.hero__sub{margin-top:24px;max-width:52ch;font-size:18px;color:rgba(255,255,255,.76)}

.hero__stat{
  display:flex;align-items:flex-start;gap:24px;flex-wrap:wrap;
  margin-top:44px;padding-top:26px;border-top:1px solid rgba(255,255,255,.22);
  max-width:640px;
}
.hero__stat strong{
  font:900 clamp(64px,9vw,104px)/.82 var(--disp);letter-spacing:-.05em;color:var(--mint);
}
.hero__stat div{padding-top:6px}
.hero__stat b{display:block;font:600 16px/1.3 var(--sans);color:#fff}
.hero__stat span{display:block;margin-top:8px;font-size:15px;line-height:1.55;color:rgba(255,255,255,.62);max-width:34ch}
.hero__credit{
  position:relative;padding:0 var(--gut) 22px;
  font:500 11.5px/1 var(--sans);letter-spacing:.08em;text-transform:uppercase;
  color:rgba(255,255,255,.4);
}

/* ---------- faixa de indicadores ---------- */
.strip{background:var(--navy-deep);color:#fff}
.strip__in{display:grid;grid-template-columns:repeat(4,1fr);gap:0;padding-top:0;padding-bottom:0}
.strip__in>div{padding:38px 30px 42px;border-left:1px solid rgba(255,255,255,.13)}
.strip__in>div:first-child{border-left:0;padding-left:0}
.strip__in strong{display:block;font:800 clamp(32px,3.4vw,42px)/1 var(--disp);letter-spacing:-.04em}
.strip__in strong i{font-size:.44em;font-weight:600;letter-spacing:0;margin-left:3px;color:var(--mint)}
.strip__in span{display:block;margin-top:12px;font-size:14.5px;line-height:1.45;color:rgba(255,255,255,.56)}

/* ---------- seções ---------- */
.sec{padding:104px 0;background:var(--bg);color:var(--fg)}
.sec--dark{
  --bg:var(--navy);--fg:#fff;--muted:rgba(255,255,255,.66);
  --rule:rgba(255,255,255,.17);--accent:var(--mint);
}
.head{max-width:880px;margin-bottom:52px}
.tag{
  display:flex;align-items:baseline;gap:12px;
  font:600 12px/1 var(--disp);letter-spacing:.17em;text-transform:uppercase;
  color:var(--accent);margin-bottom:20px;
}
.tag i{font:800 12px/1 var(--disp);letter-spacing:.06em;opacity:.55}
.tag--light{color:var(--mint)}
.sec h2{font-size:clamp(30px,3.9vw,46px);color:var(--fg)}
.sec h2 em{font-style:normal;color:var(--accent)}
.lede{margin-top:22px;font-size:18.5px;line-height:1.62;color:var(--muted);max-width:64ch}
.body{margin-top:18px;font-size:16.5px;line-height:1.68;color:var(--muted);max-width:64ch}
.ed__txt .tablewrap,.ed__txt .chart{margin-top:36px}
.src{margin-top:30px;font-size:13px;color:var(--muted);opacity:.8}
.note{margin-top:18px;font-size:13.5px;line-height:1.55;color:var(--muted);opacity:.85}

/* ---------- grade editorial assimétrica ---------- */
.ed{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.06fr);gap:70px;align-items:center}
.ed--wide{grid-template-columns:minmax(0,.82fr) minmax(0,1.18fr)}
.ed__txt{max-width:58ch}
.ed__img{margin:0}
.ed__img img{width:100%;object-fit:cover}
.ed__img figcaption{
  margin-top:14px;font:500 12px/1.4 var(--sans);letter-spacing:.08em;
  text-transform:uppercase;color:var(--muted);opacity:.75;
}
/* Ritmo alternado: nas seções escuras a foto sangra até a borda esquerda da tela;
   nas claras ela fica contida, com legenda. */
.ed__img--left{order:-1;margin-left:calc(-1 * var(--edge))}
.ed__img--left img{height:clamp(420px,52vw,660px)}

/* ---------- etapas do ciclo ---------- */
.steps{
  list-style:none;margin:76px 0 0;padding:0;
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:34px;
}
.steps li{padding-top:20px;border-top:2px solid var(--accent)}
.steps i{font:800 12px/1 var(--disp);letter-spacing:.1em;color:var(--accent)}
.steps h3{margin:16px 0 10px;font-size:19px;font-weight:700;color:var(--fg)}
.steps p{font-size:15.5px;line-height:1.55;color:var(--muted)}
.loop{
  margin-top:44px;padding-top:24px;border-top:1px solid var(--rule);
  font-size:16.5px;line-height:1.62;color:var(--muted);max-width:88ch;
}
.loop b{color:var(--fg);font-weight:700}

/* ---------- números grandes ---------- */
.bignums{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:44px;margin-top:70px}
.bignums>div{padding-top:24px;border-top:1px solid var(--rule)}
.bignums--accent{border-top-color:var(--accent)!important;border-top-width:2px!important}
.bignums strong{
  display:block;font:900 clamp(46px,5.6vw,72px)/.9 var(--disp);
  letter-spacing:-.05em;color:var(--fg);
}
.bignums--accent strong{color:var(--accent)}
.bignums strong i{font-size:.32em;font-weight:600;letter-spacing:0;margin-left:5px;color:var(--muted)}
.bignums b{display:block;margin:18px 0 10px;font:600 15.5px/1 var(--sans);color:var(--fg)}
.bignums p{font-size:15.5px;line-height:1.55;color:var(--muted)}

/* ---------- gráfico ---------- */
.chart{margin:38px 0 34px}
.chart figcaption{font:600 13px/1.4 var(--sans);color:var(--muted);margin-bottom:20px}
.bars{display:flex;flex-direction:column;gap:14px}
.bar{display:grid;grid-template-columns:46px 1fr auto;align-items:center;gap:14px}
.bar__y{font:600 13px/1 var(--disp);color:var(--muted)}
.bar__t{height:10px;background:currentColor;color:var(--rule);width:var(--w)}
.sec--dark .bar__t{color:rgba(255,255,255,.28)}
.bar--now .bar__t{color:var(--accent)}
.bar__v{font:800 17px/1 var(--disp);letter-spacing:-.03em;color:var(--muted)}
.bar--now .bar__v{color:var(--accent)}

/* ---------- tabelas ---------- */
.tablewrap{overflow-x:auto;-webkit-overflow-scrolling:touch;min-width:0;max-width:100%}
.tablewrap table{width:100%;min-width:420px;font-size:15px}
caption{text-align:left;font:600 13px/1.4 var(--sans);color:var(--muted);padding-bottom:16px}
thead th{
  font:600 11.5px/1 var(--disp);letter-spacing:.1em;text-transform:uppercase;
  color:var(--muted);text-align:right;padding:0 0 11px;border-bottom:1px solid var(--rule);
}
thead th:first-child{text-align:left}
tbody th{font-weight:500;text-align:left;padding:14px 16px 14px 0;color:var(--fg);border-bottom:1px solid var(--rule)}
tbody td{text-align:right;padding:14px 0 14px 16px;color:var(--muted);border-bottom:1px solid var(--rule);white-space:nowrap}
tbody tr:last-child th,tbody tr:last-child td{border-bottom:0}
td.hl{color:var(--accent);font-weight:700}

.duo{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;align-items:start}

/* ---------- imagem sangrando ---------- */
.bleed{position:relative;margin:0}
.bleed img{width:100%;height:clamp(320px,46vw,540px);object-fit:cover}
.bleed--short img{height:clamp(200px,26vw,320px)}
.bleed__over{
  position:absolute;right:0;bottom:0;
  padding:38px 44px 34px;color:#fff;
  background:linear-gradient(120deg,rgba(11,27,58,0) 0%,rgba(11,27,58,.86) 55%);
  max-width:min(560px,86%);text-align:right;
}
.bleed__over--left{
  right:auto;left:0;text-align:left;
  background:linear-gradient(240deg,rgba(11,27,58,0) 0%,rgba(11,27,58,.86) 55%);
}
.bleed__over strong{display:block;font:900 clamp(52px,7vw,86px)/.9 var(--disp);letter-spacing:-.05em;color:var(--mint)}
.bleed__over span{
  display:block;margin-top:12px;font:600 15px/1.4 var(--sans);color:rgba(255,255,255,.9);
}
.bleed__over--left span{font-weight:500;font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;color:rgba(255,255,255,.78)}

/* ---------- trio de texto ---------- */
.trio{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:44px}
.trio article{padding-top:22px;border-top:1px solid var(--rule)}
.trio h3{font-size:19px;font-weight:700;color:var(--fg);margin-bottom:14px}
.trio p{font-size:15.5px;line-height:1.6;color:var(--muted)}

/* ---------- lista de definição ---------- */
.list>div{
  display:grid;grid-template-columns:minmax(0,.36fr) minmax(0,1fr);gap:44px;
  padding:26px 0;border-top:1px solid var(--rule);
}
.list>div:last-child{border-bottom:1px solid var(--rule)}
.list dt{font:700 17.5px/1.3 var(--disp);color:var(--fg);letter-spacing:-.015em}
.list dd{font-size:16px;line-height:1.62;color:var(--muted)}
.list--tight>div{padding:20px 0}
.list--tight dt{font-size:16px;letter-spacing:.02em}
.list--tight dd{font-size:15.5px}

.disclosure{
  margin-top:40px;padding:24px 0 0;border-top:2px solid var(--accent);
  font-size:16px;line-height:1.62;color:var(--muted);max-width:84ch;
}
.disclosure b{color:var(--fg)}

/* ---------- imprensa ---------- */
.press__item{
  display:grid;grid-template-columns:minmax(0,.3fr) minmax(0,1fr) auto;
  gap:40px;align-items:baseline;
  padding:30px 0;border-top:1px solid var(--rule);text-decoration:none;
  transition:background .2s,padding .2s;
}
.press__item:last-child{border-bottom:1px solid var(--rule)}
.press__src{font:500 12.5px/1.5 var(--sans);letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.press__body{min-width:0}
.press__ttl{display:block;font:700 20px/1.32 var(--disp);color:var(--fg);letter-spacing:-.02em;transition:color .18s}
.press__dsc{display:block;margin-top:10px;font-size:15.5px;line-height:1.55;color:var(--muted)}
.press__go{font:400 24px/1 var(--disp);color:var(--accent);transition:transform .2s}
.press__item:hover .press__ttl{color:var(--accent)}
.press__item:hover .press__go{transform:translateX(6px)}

/* ---------- CTA relatório ---------- */
.cta{background:var(--navy-deep);color:#fff;padding:88px 0}
.cta__in{display:grid;grid-template-columns:minmax(0,1.35fr) auto;gap:56px;align-items:center}
.cta h2{font-size:clamp(26px,3.2vw,38px);color:#fff}
.cta p{margin-top:18px;font-size:17px;line-height:1.62;color:rgba(255,255,255,.66);max-width:60ch}
.cta__act{display:flex;flex-direction:column;gap:12px;min-width:240px}

/* ---------- rodapé ---------- */
.foot{background:#08142B;color:rgba(255,255,255,.68);padding:70px 0 32px;font-size:15px}
.foot__in{display:grid;grid-template-columns:minmax(0,1.3fr) 1fr 1fr;gap:44px;align-items:start}
.foot__brand{display:flex;gap:15px;align-items:flex-start}
.foot .brand__mark{width:38px;height:38px}
.foot .brand__mark path{fill:#08142B;stroke:#08142B}
.foot__brand b{color:#fff;font-family:var(--disp);font-weight:700;font-size:16px}
.foot__brand p,.foot__col p{line-height:1.72}
.foot__col h3{font:600 11.5px/1 var(--disp);letter-spacing:.16em;text-transform:uppercase;color:rgba(255,255,255,.42);margin-bottom:15px}
.foot__col p+p{margin-top:13px}
.foot__col a{color:var(--mint);text-decoration:none}
.foot__col a:hover{text-decoration:underline}
.foot__note{margin-top:54px;padding-top:26px;border-top:1px solid rgba(255,255,255,.12)}
.foot__note p{font-size:13px;line-height:1.68;color:rgba(255,255,255,.44);max-width:88ch}

/* ---------- reveal ---------- */
.rv{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.rv.in{opacity:1;transform:none}

/* ---------- responsivo ---------- */
@media (max-width:1040px){
  .nav__links{display:none}
  .burger{display:flex}
  .sec{padding:80px 0}
  .ed,.ed--wide{grid-template-columns:minmax(0,1fr);gap:40px}
  .ed__img--left{order:0;margin-left:calc(-1 * var(--edge));margin-right:calc(-1 * var(--edge))}
  .ed__img--left img{height:clamp(300px,44vw,440px)}
  .ed__txt{max-width:none}
  .ed__img img{max-height:520px}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;margin-top:56px}
  .bignums{grid-template-columns:repeat(3,minmax(0,1fr));gap:26px}
  .duo{grid-template-columns:minmax(0,1fr);gap:44px}
  .trio{grid-template-columns:minmax(0,1fr);gap:0}
  .trio article{margin-top:26px}
  .trio article:first-child{margin-top:0}
  .strip__in{grid-template-columns:repeat(2,1fr)}
  .strip__in>div{padding:30px 24px 32px}
  .strip__in>div:nth-child(odd){border-left:0;padding-left:0}
  .strip__in>div:nth-child(n+3){border-top:1px solid rgba(255,255,255,.13)}
  .cta__in{grid-template-columns:minmax(0,1fr);gap:32px}
  .cta__act{flex-direction:row;flex-wrap:wrap}
  .foot__in{grid-template-columns:1fr 1fr}
  .foot__brand{grid-column:1/-1}
}

@media (max-width:680px){
  body{font-size:16.5px}
  :root{--gut:20px}
  .hero{min-height:auto}
  .hero__in{padding:104px var(--gut) 40px}
  .hero__stat{gap:18px;margin-top:34px}
  .sec{padding:62px 0}
  .head{margin-bottom:38px}
  .steps{grid-template-columns:minmax(0,1fr);gap:24px}
  .bignums{grid-template-columns:minmax(0,1fr);gap:0}
  .bignums>div{margin-top:32px}
  .bignums>div:first-child{margin-top:0}
  .strip__in{grid-template-columns:1fr}
  .strip__in>div{padding:26px 0;border-left:0}
  .strip__in>div+div{border-top:1px solid rgba(255,255,255,.13)}
  .list>div,.press__item{grid-template-columns:minmax(0,1fr);gap:10px}
  .press__item{gap:6px;padding:24px 0}
  .press__go{display:none}
  .press__ttl{font-size:18px}
  .tablewrap table{min-width:340px;font-size:14.5px}
  .bleed__over{padding:24px 22px 20px;max-width:100%}
  .foot__in{grid-template-columns:1fr}
  .foot__brand{grid-column:auto}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
  .rv{opacity:1;transform:none}
}