:root{
  --petroleo:#164357; --mare:#22576E; --fundo-mar:#0A1C1F; --neblina:#A7B0B8; --bruma:#D3D5DD; --branco:#FFFFFF;
  --pagina:#F4F6F8; --texto:#1B2A31; --texto2:#4A5B63; --linha:#D3D5DD;
  --tinta:#14202E; --alerta:#F2B21B;
  /* Profundo: Fundo do mar into Petróleo, for every dark card (replaces flat Fundo do mar) */
  --profundo:linear-gradient(135deg,#0A1C1F 0%,#123847 60%,#164357 100%);
  --r:16px; --ease:cubic-bezier(.16,1,.3,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--branco);color:var(--texto);font:17px/1.6 Inter,system-ui,sans-serif;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:inherit}
h1,h2,h3{font-family:Manrope,system-ui,sans-serif;font-weight:800;letter-spacing:-.025em;margin:0;color:var(--petroleo)}
h2{font-size:clamp(30px,3.6vw,44px);line-height:1.1}
p{margin:0}
.wrap{max-width:1180px;margin:0 auto;padding-inline:32px}
.lead{color:var(--texto2);font-size:19px;max-width:56ch}
:focus-visible{outline:3px solid var(--mare);outline-offset:3px;border-radius:4px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border-radius:10px;font:700 16px Manrope,system-ui;text-decoration:none;white-space:nowrap;transition:background-color .2s var(--ease),transform .15s var(--ease)}
.btn:active{transform:translateY(1px)}
.btn-light{background:#FFFFFF;color:var(--petroleo)}
.btn-light:hover{background:var(--bruma)}
.btn-line{border:1.5px solid rgba(255,255,255,.6);color:#FFFFFF}
.btn-line:hover{border-color:#FFFFFF}
.btn-dark{background:var(--petroleo);color:#FFFFFF}
.btn-dark:hover{background:var(--mare)}

/* header over the hero */
header{position:absolute;top:0;left:0;right:0;z-index:5}
.nav{height:76px;display:flex;align-items:center;gap:28px}
.nav img{height:22px}
.nav ul{display:flex;gap:4px;list-style:none;margin:0 0 0 auto;padding:0}
.nav ul a{display:block;padding:10px 12px;border-radius:8px;text-decoration:none;color:#E6EBEE;font-size:15px}
.nav ul a:hover{background:rgba(255,255,255,.1);color:#FFFFFF}

/* hero: overcast beach, signal waves over it */
.hero{position:relative;min-height:min(100dvh,860px);display:flex;align-items:flex-end;color:#FFFFFF;
  background:linear-gradient(90deg,rgba(10,28,31,.9) 0%,rgba(10,28,31,.55) 55%,rgba(10,28,31,.2) 100%),url("fotos/praia-nublada.jpg") center 60%/cover}
.hero::before{content:"";position:absolute;inset:0;background:url("ondas-sobreposicao.svg") center/cover;opacity:.3;mix-blend-mode:screen;pointer-events:none}
.hero .wrap{position:relative;padding-block:0 96px;width:100%}
.hero .mark{width:min(78vw,400px)}
.hero h1{color:#FFFFFF;font-size:clamp(40px,5.2vw,68px);line-height:1.05;margin-top:40px;max-width:15ch}
.hero p{color:var(--bruma);font-size:20px;margin:20px 0 32px;max-width:44ch}
.hero .ctas{display:flex;gap:12px;flex-wrap:wrap}

section{padding-block:104px}
.alt{background:var(--pagina)}

/* who we are */
.who{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.who .lead{margin-top:18px}
.waves{border-radius:var(--r);min-height:320px;background:var(--profundo);position:relative;overflow:hidden}
.waves::before{content:"";position:absolute;inset:0;background:url("ondas-sobreposicao.svg") center/cover;opacity:.35;mix-blend-mode:screen}
.waves img{position:absolute;left:28px;bottom:26px;width:150px}

/* concept: the wave that settles */
.concept{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:44px}
.concept article{background:#FFFFFF;border:1px solid var(--linha);border-radius:var(--r);padding:28px}
.concept h3{font-size:21px;margin:14px 0 8px}
.concept p{color:var(--texto2);font-size:16px}
.glyph{height:34px;display:flex;align-items:center}
.glyph svg{height:34px;width:120px}

/* portfolio */
.portfolio{display:grid;grid-template-columns:1.35fr 1fr;gap:16px;margin-top:44px}
.prod{border-radius:var(--r);padding:36px;display:flex;flex-direction:column;gap:14px}
.prod h3{font-size:28px}
.prod p{font-size:16px}
.tattler{background:var(--tinta);color:#E7ECF1}
.tattler h3{color:#FFFFFF}
.tattler .tag{align-self:flex-start;font:700 12px Manrope;letter-spacing:.12em;text-transform:uppercase;color:var(--tinta);background:var(--alerta);border-radius:999px;padding:5px 12px}
.tattler .logo{width:220px}
.tattler ul{margin:4px 0 6px;padding:0;list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:6px 18px;font-size:15px;color:#C9D3DE}
.tattler li::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--alerta);margin:0 10px 2px 0}
.tattler .btn{align-self:flex-start;background:#E7ECF1;color:var(--tinta)}
.custom{background:var(--pagina);border:1px solid var(--linha)}
.custom img{width:64px}
.custom p{color:var(--texto2)}
.custom .next{margin-top:auto;padding-top:16px;border-top:1px solid var(--linha);font-size:15px;color:var(--texto2)}

/* how we work */
.principles{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:44px}
.principles article{border-left:3px solid var(--mare);padding:6px 0 6px 22px}
.principles h3{font-size:20px;margin-bottom:6px}
.principles p{color:var(--texto2);font-size:16px}

/* contact */
.contact{border-radius:var(--r);overflow:hidden;position:relative;color:#FFFFFF;padding:64px;
  background:linear-gradient(90deg,rgba(10,28,31,.92),rgba(10,28,31,.6)),url("fotos/mar-petroleo.jpg") center/cover}
.contact::before{content:"";position:absolute;inset:0;background:url("ondas-sobreposicao.svg") center/cover;opacity:.22;mix-blend-mode:screen}
.contact>*{position:relative}
.contact h2{color:#FFFFFF;max-width:18ch}
.contact p{color:var(--bruma);margin:16px 0 28px;max-width:50ch}
.contact .actions{display:flex;flex-wrap:wrap;gap:12px}
.contact p.reach{margin:16px 0 0;font-size:15px;font-variant-numeric:tabular-nums}

footer{padding-block:36px;border-top:1px solid var(--linha);font-size:14px;color:var(--texto2)}
footer .wrap{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
footer img{height:30px}
footer nav{margin-left:auto;display:flex;flex-wrap:wrap;gap:6px}
footer nav a{padding:8px 10px;text-decoration:none;border-radius:8px}
footer nav a:hover{background:var(--pagina)}

@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn{transition:none}}
@media (max-width:960px){
  .nav ul{display:none}
  .who,.portfolio{grid-template-columns:1fr}
  .concept,.principles{grid-template-columns:1fr}
}
@media (max-width:640px){
  .wrap{padding-inline:18px}
  section{padding-block:72px}
  .contact,.prod{padding:28px 22px}
  .tattler ul{grid-template-columns:1fr}
}

/* "Saiba mais" under each block */
.more{display:inline-flex;align-items:center;gap:8px;margin-top:28px;font:700 16px Manrope,system-ui;color:var(--mare);text-decoration:none;border-bottom:1.5px solid transparent;padding-bottom:2px}
.more::after{content:"→";transition:transform .2s var(--ease)}
.more:hover{border-color:currentColor}
.more:hover::after{transform:translateX(3px)}
.tattler .more,.contact .more{color:#FFFFFF}

/* inner pages: solid header and a short opening band */
.page header{position:static;background:var(--profundo)}
.page-top{background:var(--profundo);color:#FFFFFF;position:relative;overflow:hidden}
.page-top::before{content:"";position:absolute;inset:0;background:url("ondas-sobreposicao.svg") center/cover;opacity:.25;mix-blend-mode:screen;pointer-events:none}
.page-top .wrap{position:relative;padding-block:72px 80px}
.page-top .kicker{font:700 12px Manrope,system-ui;letter-spacing:.16em;text-transform:uppercase;color:var(--neblina)}
.page-top h1{color:#FFFFFF;font-size:clamp(36px,4.6vw,56px);line-height:1.08;margin-top:14px;max-width:18ch}
.page-top p{color:var(--bruma);font-size:19px;margin-top:18px;max-width:56ch}
.nav a.home{display:flex}
.nav ul a[aria-current="page"]{background:rgba(255,255,255,.12);color:#FFFFFF}

/* products page */
.catalog{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:40px}
.item{background:#FFFFFF;border:1px solid var(--linha);border-radius:var(--r);padding:26px;display:flex;flex-direction:column;gap:10px}
.item .of{font:700 12px Manrope,system-ui;letter-spacing:.12em;text-transform:uppercase;color:var(--mare)}
.item h3{font-size:21px}
.item p{color:var(--texto2);font-size:16px}
.item .state{margin-top:auto;padding-top:12px;font-size:14px;color:var(--texto2)}
.item .state b{color:var(--petroleo)}
.flagship{display:grid;grid-template-columns:1.2fr 1fr;gap:40px;align-items:center;border-radius:var(--r);padding:44px;background:var(--tinta);color:#E7ECF1}
.flagship .logo{width:240px}
.flagship h2{color:#FFFFFF;margin-top:18px}
.flagship p{margin-top:14px;color:#C9D3DE;font-size:17px}
.flagship .btn{margin-top:26px;background:#E7ECF1;color:var(--tinta)}
.flagship ul{margin:0;padding:0;list-style:none;display:grid;gap:10px;font-size:16px;color:#C9D3DE}
.flagship li::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--alerta);margin:0 10px 2px 0}

/* about page */
.founders{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:40px}
.person{background:#FFFFFF;border:1px solid var(--linha);border-radius:var(--r);padding:28px;display:grid;grid-template-columns:72px 1fr;gap:18px;align-items:start}
.person .ph{width:72px;height:72px;border-radius:50%;background:var(--profundo);display:grid;place-items:center;color:#FFFFFF;font:800 24px Manrope,system-ui}
.person h3{font-size:21px}
.person .role{font-size:15px;color:var(--mare);margin-top:2px}
.person p{color:var(--texto2);font-size:16px;margin-top:10px}
.story{max-width:68ch}
.story p{color:var(--texto2);margin-top:16px}
.social{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.social a{display:inline-flex;align-items:center;min-height:44px;padding:0 18px;border:1.5px solid var(--linha);border-radius:10px;text-decoration:none;font:700 15px Manrope,system-ui;color:var(--petroleo)}
.social a:hover{border-color:var(--petroleo)}
.social a[aria-disabled]{cursor:default;gap:10px}
.social a[aria-disabled]:hover{border-color:var(--linha)}
.social small{font:500 12px Inter,system-ui;color:var(--texto2)}
.pillars{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:40px}
.pillar{border-radius:var(--r);padding:32px;background:var(--profundo);color:var(--bruma)}
.pillar .num{font:800 clamp(44px,5vw,64px)/1 Manrope,system-ui;letter-spacing:-.03em;color:#FFFFFF}
.pillar h3{color:var(--neblina);font-size:20px;margin:8px 0 14px}
.pillar p{font-size:16px}

/* text pages (privacy) */
.doc{max-width:760px}
.doc h2{font-size:22px;line-height:1.25;margin:44px 0 10px}
.doc p,.doc ul{margin:0 0 12px}
.doc ul{padding-left:20px}
.doc li{margin:4px 0}
.doc .box{background:var(--pagina);border-radius:12px;padding:18px 22px;margin:16px 0}
.doc a{color:var(--mare)}
.fill{background:#FDF1D2;border-bottom:2px solid var(--alerta);padding:0 4px;border-radius:3px}
.legal{width:100%;font-size:13px;color:var(--texto2)}

@media (max-width:960px){
  .catalog{grid-template-columns:1fr 1fr}
  .flagship,.founders,.pillars{grid-template-columns:1fr}
}
@media (max-width:640px){
  .catalog{grid-template-columns:1fr}
  .flagship{padding:28px 22px}
  .person{grid-template-columns:1fr}
  .page-top .wrap{padding-block:48px 56px}
}