body{margin:0}img{max-width:100%}[hidden]{display:none!important}
/* Layout: faixa grafite fixa no topo, capa grafite com o símbolo animado, uma única trilha de seis etapas
   (o conteúdo de cada etapa aparece sozinho; a etapa 5 abre uma árvore de três ramos), contato e notas legais. */
:root{
  --bg:#F6F4EF; --surface:#FFFFFF; --surface-2:#EEF2F6; --ink:#0A121C; --ink-2:#33475F; --muted:#5B6672; --line:#DADFE3;
  --gold:#8F6318; --gold-mark:#C2902B; --steel:#7C93AD;
  --graphite:#0E1826; --graphite-2:#13202F; --graphite-line:#23364C; --on-graphite:#FFFFFF; --on-graphite-2:#C9D6E4; --on-graphite-3:#7C93AD; --gold-on-graphite:#DEB25A;
  --plate:#FFFFFF; --plate-line:#DADFE3; --shadow:rgba(14,24,38,.14);
  --display:"Aptos Display","Inter Tight","Segoe UI",Arial,sans-serif;
  --body:"IBM Plex Sans","Segoe UI",Arial,sans-serif;
  --mono:"IBM Plex Mono",Consolas,"Courier New",monospace;
}
@media (prefers-color-scheme: dark){ :root:not([data-theme="light"]){
  --bg:#0A121C; --surface:#0E1826; --surface-2:#13202F; --ink:#EEF2F6; --ink-2:#C9D6E4; --muted:#9FB0C3; --line:#23364C;
  --gold:#DEB25A; --gold-mark:#C2902B; --steel:#7C93AD;
  --graphite:#0E1826; --graphite-2:#13202F; --graphite-line:#23364C; --on-graphite:#FFFFFF; --on-graphite-2:#C9D6E4; --on-graphite-3:#7C93AD; --gold-on-graphite:#DEB25A;
  --plate:#F4F6F9; --plate-line:#23364C; --shadow:rgba(0,0,0,.45); color-scheme:dark } }
:root[data-theme="dark"]{
  --bg:#0A121C; --surface:#0E1826; --surface-2:#13202F; --ink:#EEF2F6; --ink-2:#C9D6E4; --muted:#9FB0C3; --line:#23364C;
  --gold:#DEB25A; --gold-mark:#C2902B; --steel:#7C93AD;
  --graphite:#0E1826; --graphite-2:#13202F; --graphite-line:#23364C; --on-graphite:#FFFFFF; --on-graphite-2:#C9D6E4; --on-graphite-3:#7C93AD; --gold-on-graphite:#DEB25A;
  --plate:#F4F6F9; --plate-line:#23364C; --shadow:rgba(0,0,0,.45); color-scheme:dark }

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:var(--display);font-weight:700;line-height:1.12;margin:0;text-wrap:balance;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit}
a{color:inherit}
sup{font-size:.68em;line-height:0;color:var(--gold)}
:focus-visible{outline:2px solid var(--gold-mark);outline-offset:3px}
.wrap{max-width:1120px;margin-inline:auto;padding-inline:24px}
.eyebrow{font-family:var(--mono);font-size:.72rem;letter-spacing:.24em;text-transform:uppercase;color:var(--gold)}
.lead{color:var(--ink-2);font-size:1.06rem;max-width:66ch}
.fine{font-size:.8rem;color:var(--muted);margin-top:12px;max-width:none}

/* faixa superior */
.bar{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:var(--graphite);border-bottom:1px solid var(--graphite-line)}
.bar::after{content:"";display:block;height:2px;background:linear-gradient(90deg,var(--gold-on-graphite),var(--gold-mark) 45%,transparent 92%)}
.bar .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:10px}
.bar img{height:34px;width:auto;display:block}
.bar nav{display:flex;gap:4px;flex-wrap:wrap;justify-content:flex-end}
.bar nav a{font-family:var(--mono);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;text-decoration:none;color:var(--on-graphite-2);padding:8px 10px;border-radius:4px}
.bar nav a:hover{color:var(--gold-on-graphite)}
@media (max-width:640px){ .bar nav a:not(.keep){display:none} }

/* capa */
.hero{background:var(--graphite);color:var(--on-graphite);position:relative;overflow:hidden;
  background-image:linear-gradient(var(--graphite-line) 1px,transparent 1px),linear-gradient(90deg,var(--graphite-line) 1px,transparent 1px);background-size:44px 44px}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(120% 90% at 78% 40%,transparent 0,var(--graphite) 62%)}
.hero .wrap{position:relative;display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:32px;align-items:center;padding-block:64px 56px}
.hero .eyebrow{color:var(--gold-on-graphite)}
.hero h1{font-size:clamp(2.3rem,5.2vw,3.9rem);margin-block:18px 20px}
.hero p{color:var(--on-graphite-2);font-size:1.12rem;max-width:46ch}
.hero .sym{justify-self:center;width:min(100%,400px);aspect-ratio:1/1}
.cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.btn{display:inline-block;text-decoration:none;font-weight:600;font-size:.95rem;padding:12px 20px;border-radius:4px;border:1px solid var(--gold-on-graphite);cursor:pointer;background:none}
.btn.solid{background:var(--gold-on-graphite);color:var(--graphite)}
.btn.ghost{color:var(--on-graphite)}
.btn:hover{filter:brightness(1.08)}
.hero .meta{font-family:var(--mono);font-size:.7rem;letter-spacing:.12em;color:var(--on-graphite-3);margin-top:40px}
@media (max-width:820px){ .hero .wrap{grid-template-columns:1fr;padding-block:40px 40px} .hero .sym{width:210px;order:-1;justify-self:start} }

/* pilares */
.pillars{background:var(--graphite-2);color:var(--on-graphite-2);border-top:1px solid var(--graphite-line)}
.pillars .wrap{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0}
.pillars .wrap > div{padding:26px 24px 28px;border-left:1px solid var(--graphite-line)}
.pillars .wrap > div:first-child{border-left:0;padding-left:0}
.pillars b{display:block;font-family:var(--mono);font-weight:500;font-size:.72rem;letter-spacing:.22em;color:var(--gold-on-graphite);margin-bottom:8px}
.pillars p{font-size:.95rem}
@media (max-width:760px){ .pillars .wrap{grid-template-columns:1fr} .pillars .wrap > div{border-left:0;border-top:1px solid var(--graphite-line);padding-inline:0} .pillars .wrap > div:first-child{border-top:0} }

/* diferenciais */
.diff{background:var(--graphite-2);color:var(--on-graphite-2);border-top:1px solid var(--graphite-line)}
.diff .wrap{padding-block:40px 48px}
.diff .eyebrow{color:var(--gold-on-graphite)}
.diff h2{font-size:clamp(1.5rem,2.6vw,2rem);color:var(--on-graphite);margin-block:10px 26px}
.diff ul{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;border-top:1px solid var(--graphite-line)}
.diff li{padding:22px 24px 22px 0;border-bottom:1px solid var(--graphite-line)}
.diff li:not(:nth-child(3n+1)){padding-left:24px;border-left:1px solid var(--graphite-line)}
.diff b{display:block;font-family:var(--display);font-size:1.08rem;color:var(--on-graphite);margin-bottom:6px}
.diff span{display:block;font-size:.94rem}
@media (max-width:820px){ .diff ul{grid-template-columns:1fr} .diff li:not(:nth-child(3n+1)){padding-left:0;border-left:0} }

section.block{padding-block:72px 84px}
.block h2{font-size:clamp(1.8rem,3.4vw,2.6rem);margin-block:12px 14px}
.head{display:grid;gap:0;margin-bottom:36px}

/* placas de imagem */
.plate{margin:0;background:var(--plate);border:1px solid var(--plate-line);border-radius:6px;overflow:hidden;display:flex;flex-direction:column}
.plate button{all:unset;cursor:zoom-in;display:block;aspect-ratio:4/3;position:relative}
.plate button:focus-visible{outline:2px solid var(--gold-mark);outline-offset:-4px}
.plate button img{position:absolute;inset:14px;width:calc(100% - 28px);height:calc(100% - 28px);object-fit:contain;display:block}
.plate .vid{aspect-ratio:4/3;position:relative}
.plate .vfit{position:absolute;left:14px;right:14px;top:50%;transform:translateY(-50%);aspect-ratio:16/9;overflow:hidden;background:#FFFFFF}
.plate .vfit video{display:block;width:100%;height:100%;object-fit:contain}
.plate .vfit::after{content:"";position:absolute;left:0;top:0;width:30%;height:11%;background:#FFFFFF}
.plate figcaption{font-family:var(--mono);font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:#5B6672;padding:0 14px 12px}

/* etapas */
.steps{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));position:relative;margin-bottom:28px}
.steps::before{content:"";position:absolute;left:8.33%;right:8.33%;top:23px;height:1px;background:var(--gold-mark)}
.steps button{all:unset;cursor:pointer;display:grid;justify-items:center;gap:10px;text-align:center;position:relative;padding-bottom:6px}
.steps .n{width:46px;height:46px;border-radius:50%;display:grid;place-items:center;font-family:var(--mono);font-weight:600;font-size:.82rem;background:var(--surface);color:var(--ink-2);border:1px solid var(--gold-mark);transition:background .2s,color .2s,transform .2s}
.steps .t{font-family:var(--display);font-weight:600;font-size:.98rem;color:var(--muted)}
.steps button[aria-selected="true"] .n{background:var(--graphite);color:var(--gold-on-graphite);transform:scale(1.12)}
.steps button[aria-selected="true"] .t{color:var(--ink)}
.steps button:hover .n{background:var(--graphite);color:var(--gold-on-graphite)}
.steps button:focus-visible .n{outline:2px solid var(--gold-mark);outline-offset:3px}
@media (max-width:760px){ .steps{grid-template-columns:repeat(3,minmax(0,1fr));row-gap:18px} .steps::before{display:none} .steps .t{font-size:.86rem} }
.stage{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:36px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:32px}
.stage h3{font-size:1.5rem;margin-bottom:12px}
.stage p{color:var(--ink-2);max-width:50ch}
.k{font-family:var(--mono);font-size:.68rem;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);margin-block:22px 10px}
.rows li{padding:9px 0;border-top:1px solid var(--line);font-size:.96rem}
.rows li:last-child{border-bottom:1px solid var(--line)}
@media (max-width:820px){ .stage{grid-template-columns:1fr;padding:22px} }

/* árvore da etapa 5 */
.treehead{margin-top:34px;text-align:center}
.tree{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;position:relative;padding-top:30px;margin-top:6px}
.tree::before{content:"";position:absolute;top:14px;left:16.66%;right:16.66%;height:1px;background:var(--gold-mark)}
.tree::after{content:"";position:absolute;top:0;left:50%;width:1px;height:14px;background:var(--gold-mark)}
.tree button{all:unset;cursor:pointer;position:relative;background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:18px 20px 20px;display:grid;gap:6px;align-content:start}
.tree button::before{content:"";position:absolute;top:-17px;left:50%;width:1px;height:16px;background:var(--gold-mark)}
.tree button b{font-family:var(--display);font-size:1.1rem}
.tree button span{color:var(--muted);font-size:.9rem;line-height:1.4}
.tree button[aria-selected="true"]{background:var(--graphite);border-color:var(--graphite);color:var(--on-graphite)}
.tree button[aria-selected="true"] span{color:var(--on-graphite-2)}
.tree button:hover{border-color:var(--gold-mark)}
.tree button:focus-visible{outline:2px solid var(--gold-mark);outline-offset:3px}
@media (max-width:760px){ .tree{grid-template-columns:1fr;padding-top:8px} .tree::before,.tree::after,.tree button::before{display:none} }
.branch{margin-top:18px;background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:32px}
.branch > h3{font-size:1.5rem;margin-bottom:10px}
.branch > .lead{margin-bottom:24px}
@media (max-width:820px){ .branch{padding:22px} }

/* seletor segmentado */
.seg{display:inline-flex;flex-wrap:wrap;gap:4px;background:var(--surface-2);border:1px solid var(--line);border-radius:6px;padding:4px;margin-bottom:24px}
.seg button{all:unset;cursor:pointer;font-weight:600;font-size:.9rem;padding:9px 16px;border-radius:4px;color:var(--muted)}
.seg button[aria-selected="true"]{background:var(--graphite);color:var(--on-graphite)}
.seg button:hover{color:var(--ink)}
.seg button[aria-selected="true"]:hover{color:var(--on-graphite)}
.seg button:focus-visible{outline:2px solid var(--gold-mark);outline-offset:2px}
.case{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:36px;align-items:center}
.case .plate button{aspect-ratio:16/10}
.case h4{font-size:1.3rem;margin-bottom:10px}
.case p{color:var(--ink-2)}
@media (max-width:820px){ .case{grid-template-columns:1fr} }
.calc{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,2fr);gap:36px;align-items:start}
.calc h4{font-size:1.3rem;margin-bottom:10px}
.calc p{color:var(--ink-2)}
.calc .rows{margin-top:18px}
.gal{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
@media (max-width:900px){ .calc{grid-template-columns:1fr} }
@media (max-width:620px){ .gal{grid-template-columns:1fr} }
.norms{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,2fr);gap:36px;align-items:start}
.chips{display:grid;grid-template-columns:repeat(auto-fill,minmax(168px,1fr));gap:10px}
.chip{background:var(--surface-2);border:1px solid var(--line);border-radius:6px;padding:14px 14px 13px}
.chip b{display:block;font-family:var(--mono);font-weight:600;font-size:.9rem;color:var(--ink)}
.chip span{display:block;font-size:.82rem;color:var(--muted);margin-top:4px;line-height:1.35}
@media (max-width:900px){ .norms{grid-template-columns:1fr} }

/* relatório técnico no modelo da marca: capa grafite com o logotipo horizontal, página interna com logotipo, filete e rodapé */
.report{position:relative;aspect-ratio:4/3;container-type:inline-size;background:#FFFFFF}
.report .sheet{position:absolute;box-shadow:0 2.2cqw 5cqw rgba(14,24,38,.22)}
.report .inner{left:52%;top:7%;width:42%;aspect-ratio:210/297;background:#FFFFFF;border:1px solid #DADFE3;padding:5% 4% 0}
.report .inner img{display:block;width:44%;height:auto}
.report .filet{height:.45cqw;min-height:1px;background:linear-gradient(90deg,#DEB25A,#C2902B 50%,rgba(194,144,43,0));margin-top:3.5%}
.report .inner h5{font-family:var(--display);font-size:2.3cqw;margin:6% 0 3%;color:#0E1826;font-weight:700}
.report .ln{height:.55cqw;background:#DADFE3;margin-bottom:1.5cqw}
.report .inner svg{display:block;width:100%;height:auto;margin-top:4%}
.report .foot{position:absolute;left:8.5%;right:8.5%;bottom:3.5%;display:flex;justify-content:space-between;font-family:var(--mono);font-size:1.15cqw;letter-spacing:.08em;color:#5B6672;border-top:1px solid #DADFE3;padding-top:2%}
.report .cover{left:6%;top:13%;width:42%;aspect-ratio:210/297;background:#0E1826;padding:5% 4.5%;color:#FFFFFF}
.report .cover img{display:block;width:62%;height:auto}
.report .cover .filet{margin-top:4%}
.report .cover .tt{position:absolute;left:9.5%;right:9.5%;top:50%}
.report .cover .eb{font-family:var(--mono);font-size:1.25cqw;letter-spacing:.24em;color:#DEB25A}
.report .cover b{display:block;font-family:var(--display);font-size:3.5cqw;line-height:1.1;margin:5% 0 4%}
.report .cover span{display:block;font-size:1.6cqw;line-height:1.4;color:#C9D6E4}
.report .cover .foot{color:#7C93AD;border-top-color:#23364C}

/* qualidade (etapa 6) */
.qgrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0;margin-top:18px;background:var(--surface);border:1px solid var(--line);border-radius:8px}
.qgrid div{padding:26px 28px}
.qgrid div:nth-child(even){border-left:1px solid var(--line)}
.qgrid div:nth-child(n+3){border-top:1px solid var(--line)}
.qgrid h4{font-size:1.15rem;margin-bottom:8px}
.qgrid p{color:var(--ink-2);font-size:.96rem}
@media (max-width:760px){ .qgrid{grid-template-columns:1fr} .qgrid div:nth-child(even){border-left:0} .qgrid div + div{border-top:1px solid var(--line)} }

/* contato */
.contact{background:var(--graphite);color:var(--on-graphite);border-top:1px solid var(--graphite-line);
  background-image:linear-gradient(var(--graphite-line) 1px,transparent 1px),linear-gradient(90deg,var(--graphite-line) 1px,transparent 1px);background-size:44px 44px;position:relative}
.contact::before{content:"";position:absolute;inset:0;background:radial-gradient(110% 120% at 20% 50%,var(--graphite) 45%,transparent 100%)}
.contact .wrap{position:relative;padding-block:84px;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:48px;align-items:center}
.contact .eyebrow{color:var(--gold-on-graphite)}
.contact h2{font-size:clamp(1.9rem,4vw,3rem);margin-block:14px 16px}
.contact p{color:var(--on-graphite-2);max-width:46ch}
.mails{display:grid;gap:14px;margin-top:26px}
.mails li{display:flex;flex-wrap:wrap;align-items:center;gap:6px 14px}
.mails .who{flex-basis:100%;font-family:var(--mono);font-size:.68rem;letter-spacing:.2em;text-transform:uppercase;color:var(--gold-on-graphite)}
.mails a{font-family:var(--mono);font-size:clamp(.82rem,1.6vw,1rem);color:var(--on-graphite);text-decoration:none;border-bottom:1px solid var(--graphite-line);overflow-wrap:anywhere;user-select:all}
.mails a:hover{border-bottom-color:var(--gold-on-graphite)}
.mails button{all:unset;cursor:pointer;font-size:.78rem;font-weight:600;padding:5px 10px;border:1px solid var(--graphite-line);border-radius:4px;color:var(--on-graphite-2)}
.mails button:hover{border-color:var(--gold-on-graphite);color:var(--on-graphite)}
.mails button:focus-visible{outline:2px solid var(--gold-mark);outline-offset:2px}
.start{background:var(--graphite-2);border:1px solid var(--graphite-line);border-radius:8px;padding:8px 26px}
.start li{padding:18px 0;border-top:1px solid var(--graphite-line)}
.start li:first-child{border-top:0}
.start b{display:block;font-family:var(--display);font-size:1.08rem;color:var(--on-graphite)}
.start span{display:block;color:var(--on-graphite-2);font-size:.94rem;margin-top:4px}
@media (max-width:820px){ .contact .wrap{grid-template-columns:1fr;padding-block:56px} }
footer{background:var(--graphite);color:var(--on-graphite-3);border-top:1px solid var(--graphite-line)}
footer .legal{padding-block:26px 6px;display:grid;gap:8px;font-size:.78rem;line-height:1.5;max-width:92ch}
footer .sig{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;padding-block:18px 22px;font-family:var(--mono);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase}

/* ampliação */
dialog{border:0;padding:0;background:var(--plate);border-radius:8px;max-width:min(1200px,94vw);max-height:92vh;box-shadow:0 30px 80px var(--shadow)}
dialog::backdrop{background:rgba(10,18,28,.78)}
dialog img{display:block;max-width:100%;max-height:calc(92vh - 64px);margin-inline:auto;padding:18px 18px 0}
dialog .dfoot{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 18px 14px;font-family:var(--mono);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:#5B6672}
dialog .dfoot button{all:unset;cursor:pointer;padding:6px 12px;border:1px solid #DADFE3;border-radius:4px;color:#0A121C}
dialog .dfoot button:focus-visible{outline:2px solid #C2902B;outline-offset:2px}
@media (prefers-reduced-motion: reduce){ html{scroll-behavior:auto} .steps .n{transition:none} }

/* site: navegação, cabeçalho de página, cartões de serviço e faixa de chamada */
.bar nav a[aria-current="page"]{color:var(--gold-on-graphite)}
.block h1{font-size:clamp(1.8rem,3.4vw,2.6rem);margin-block:12px 14px}
.pagehead{background:var(--graphite);color:var(--on-graphite);border-bottom:1px solid var(--graphite-line)}
.pagehead .wrap{padding-block:56px 52px}
.pagehead .eyebrow{color:var(--gold-on-graphite)}
.pagehead h1{font-size:clamp(2rem,4.4vw,3.2rem);margin-block:14px 16px}
.pagehead p{color:var(--on-graphite-2);font-size:1.08rem;max-width:60ch}
.svc{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.svc a{display:grid;gap:8px;align-content:start;text-decoration:none;background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:22px 22px 24px;transition:border-color .2s}
.svc a:hover{border-color:var(--gold-mark)}
.svc .n{font-family:var(--mono);font-weight:600;font-size:.78rem;letter-spacing:.14em;color:var(--gold)}
.svc b{font-family:var(--display);font-size:1.2rem;color:var(--ink)}
.svc span.d{color:var(--muted);font-size:.94rem}
@media (max-width:820px){ .svc{grid-template-columns:repeat(2,minmax(0,1fr))} }
@media (max-width:520px){ .svc{grid-template-columns:1fr} }
.home-gal{border-top:1px solid var(--line)}
.more{display:inline-block;margin-top:26px;font-weight:600;color:var(--gold);text-decoration:none;border-bottom:1px solid var(--gold-mark)}
.band{background:var(--graphite);color:var(--on-graphite);border-top:1px solid var(--graphite-line)}
.band .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px 32px;padding-block:52px}
.band h2{font-size:clamp(1.5rem,3vw,2.2rem)}
.band p{color:var(--on-graphite-2);margin-top:8px}
.nf .wrap{padding-block:96px;display:grid;gap:18px;justify-items:start}
.nf h1{font-size:clamp(2rem,4.4vw,3.2rem)}
.nf a{font-weight:600;color:var(--gold)}