/* =========================================================
   Sarsan Engenharia e Saneamento
   Paleta: azul-marinho institucional / branco
   ========================================================= */

:root{
  --brand:#003475;        /* azul-marinho da marca (amostrado da logo) */
  --brand-deep:#041B3D;   /* navy quase-preto: hero, cta, footer */
  --brand-mid:#0A4A8F;    /* azul intermediário: links, hovers */
  --sky:#5FA8FF;          /* azul claro de destaque sobre fundo escuro */

  --paper:#FFFFFF;
  --paper-2:#F3F6FA;      /* seções alternadas claras */
  --ink:#101826;
  --mute:#56636F;
  --mute-2:#7C8892;
  --line:rgba(4,36,74,.11);
  --line-2:rgba(4,36,74,.18);
  --line-inv:rgba(255,255,255,.14);
  --line-inv-2:rgba(255,255,255,.24);

  --ff-d:"Space Grotesk",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --ff-b:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;

  --pad:clamp(20px,5vw,72px);
  --sec:clamp(76px,10vw,150px);
  --r:16px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --ease-2:cubic-bezier(.16,1,.3,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:84px}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--ff-b);font-size:clamp(15px,1.02vw,17px);line-height:1.65;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3{margin:0;font-family:var(--ff-d);font-weight:600;line-height:1.05;letter-spacing:-.025em}
p{margin:0}
::selection{background:var(--brand);color:#fff}
:focus-visible{outline:2px solid var(--brand-mid);outline-offset:3px;border-radius:4px}

.wrap{width:100%;max-width:1320px;margin-inline:auto;padding-inline:var(--pad)}
.skip{position:absolute;left:-9999px;top:12px;z-index:999;background:var(--brand);color:#fff;padding:12px 18px;border-radius:10px}
.skip:focus{left:12px}

.grain{
  position:fixed;inset:-50%;z-index:2;pointer-events:none;opacity:.05;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.42'/%3E%3C/svg%3E");
  mix-blend-mode:multiply;
}

/* =========================================================
   BOTÕES
   ========================================================= */
.btn{
  --bg:transparent;--fg:var(--ink);--bd:var(--line-2);
  position:relative;display:inline-flex;align-items:center;justify-content:center;
  min-height:54px;padding:0 30px;border-radius:100px;
  background:var(--bg);color:var(--fg);border:1px solid var(--bd);
  font-family:var(--ff-d);font-weight:500;font-size:.95rem;letter-spacing:-.01em;
  overflow:hidden;isolation:isolate;
  transition:transform .35s var(--ease-2),border-color .3s,color .3s,background .3s;
}
.btn span{display:inline-flex;align-items:center;gap:10px;position:relative;z-index:1}
.btn::before{content:"";position:absolute;inset:0;z-index:0;border-radius:inherit;background:var(--brand);transform:translateY(101%);transition:transform .5s var(--ease-2)}
.btn:hover::before{transform:translateY(0)}
.btn:hover{color:#fff;border-color:transparent}
.btn:active{transform:scale(.97)}

.btn--accent{--bg:var(--brand);--fg:#fff;--bd:transparent;box-shadow:0 10px 30px -12px rgba(0,52,117,.55)}
.btn--accent::before{background:#fff}
.btn--accent:hover{color:var(--brand)}
.btn--ghost{--bg:rgba(4,36,74,.03)}
/* variante para uso sobre fundo escuro (hero/cta) */
.btn--ghost-inv{--bg:transparent;--fg:#fff;--bd:var(--line-inv-2)}
.btn--ghost-inv::before{background:#fff}
.btn--ghost-inv:hover{color:var(--brand-deep)}
.btn--sm{min-height:44px;padding:0 20px;font-size:.86rem}
.btn--lg{min-height:62px;padding:0 36px;font-size:1.02rem}

/* =========================================================
   HEADER
   ========================================================= */
.hdr{position:fixed;top:0;left:0;right:0;z-index:200;transition:transform .45s var(--ease),background .4s,border-color .4s,backdrop-filter .4s;border-bottom:1px solid transparent}
.hdr.is-stuck{background:rgba(255,255,255,.86);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom-color:var(--line)}
.hdr.is-hidden{transform:translateY(-100%)}
.hdr__in{max-width:1320px;margin-inline:auto;padding:14px var(--pad);display:flex;align-items:center;gap:20px}

.brand{display:inline-flex;align-items:center;margin-right:auto}
/* Logo original, sem texto ao lado. No header ela cruza um fundo escuro (hero)
   e um fundo claro (header "stuck"), então duas versões (escura/branca) ficam
   sobrepostas e alternam opacidade via crossfade — sem trocar de <img>. */
.brand__mark{position:relative;width:clamp(120px,13vw,150px);aspect-ratio:1480/953;flex:none}
.brand__mark img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;transition:opacity .45s var(--ease)}
.brand__mark--dark{opacity:0}
.brand__mark--light{opacity:1}
.hdr.is-stuck .brand__mark--dark{opacity:1}
.hdr.is-stuck .brand__mark--light{opacity:0}

.nav{display:none;gap:4px}
.nav a{position:relative;padding:9px 14px;border-radius:99px;font-size:.88rem;color:rgba(255,255,255,.78);transition:color .3s,background .3s}
.nav a:hover{color:#fff;background:rgba(255,255,255,.12)}
.hdr.is-stuck .nav a{color:var(--mute)}
.hdr.is-stuck .nav a:hover{color:var(--brand);background:rgba(4,36,74,.05)}
.hdr__cta{display:none}

.burger{width:46px;height:46px;flex:none;border:1px solid var(--line-inv-2);border-radius:13px;display:grid;place-content:center;gap:5px;background:rgba(255,255,255,.08)}
.burger span{display:block;width:18px;height:1.5px;background:#fff;transition:transform .35s var(--ease),opacity .25s,background .4s}
.hdr.is-stuck .burger{border-color:var(--line-2);background:rgba(4,36,74,.03)}
.hdr.is-stuck .burger span{background:var(--brand)}
body.menu-open .burger span:nth-child(1){transform:translateY(3.2px) rotate(45deg)}
body.menu-open .burger span:nth-child(2){transform:translateY(-3.3px) rotate(-45deg)}

@media (min-width:1020px){.nav{display:flex}.hdr__cta{display:inline-flex}.burger{display:none}}

.mmenu{
  position:fixed;inset:0;z-index:190;background:var(--brand-deep);
  padding:110px var(--pad) 40px;display:flex;flex-direction:column;justify-content:space-between;
  opacity:0;visibility:hidden;transform:translateY(-14px);
  transition:opacity .4s var(--ease),transform .5s var(--ease),visibility .4s;
}
body.menu-open .mmenu{opacity:1;visibility:visible;transform:none}
.mmenu__nav{display:flex;flex-direction:column;gap:4px}
.mmenu__nav a{display:flex;align-items:baseline;gap:16px;padding:14px 0;border-bottom:1px solid var(--line-inv);font-family:var(--ff-d);font-size:clamp(1.6rem,7.4vw,2.2rem);font-weight:500;letter-spacing:-.02em;color:#fff}
.mmenu__nav i{font-style:normal;font-size:.7rem;color:var(--sky);font-family:var(--ff-b);letter-spacing:.1em}
.mmenu__foot{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:.9rem;color:rgba(255,255,255,.7);padding-top:26px}
.mmenu__foot a:hover{color:var(--sky)}

/* =========================================================
   TIPOGRAFIA DE SEÇÃO
   ========================================================= */
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:.75rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--brand-mid);margin-bottom:20px}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--brand-mid);flex:none;box-shadow:0 0 0 4px rgba(10,74,143,.14)}
.h2{font-size:clamp(1.9rem,5.4vw,3.6rem);color:var(--brand-deep)}
.h2 em{font-style:normal;color:var(--brand-mid)}
.shead{max-width:780px;margin-bottom:clamp(40px,5.5vw,68px)}
.shead--row{max-width:none;display:grid;gap:24px}
.shead__note{color:var(--mute);max-width:42ch;font-size:1rem}
@media (min-width:900px){
  .shead--row{grid-template-columns:1fr auto;align-items:end;gap:56px}
  .shead__note{text-align:right}
}

/* =========================================================
   HERO (fundo azul-marinho escuro)
   ========================================================= */
.hero{position:relative;min-height:clamp(600px,94vh,900px);display:flex;align-items:center;padding:clamp(124px,15vw,140px) 0 clamp(70px,8vw,96px);overflow:hidden;background:var(--brand-deep);color:#fff}

/* Foto real de uma ETE como pano de fundo. background-attachment:fixed é o
   parallax pedido — a imagem fica parada no viewport enquanto a página rola
   por cima. Só no desktop: no celular esse efeito visualmente não ficou bom
   (testado em aparelho real), então lá a imagem volta a rolar normalmente.
   IMPORTANTE: nunca aplicar transform neste elemento (nem em ancestrais) —
   isso quebra background-attachment:fixed silenciosamente, fazendo a imagem
   passar a rolar junto com a página. O "efeito vivo" aqui vem de um pan
   lento em background-position, que não tem esse conflito. */
.hero__photo{
  position:absolute;inset:0;z-index:0;
  background-image:url("../img/hero-sarsan.webp");
  background-size:cover;background-position:center 60%;background-attachment:fixed;
  animation:panphoto 40s ease-in-out infinite alternate;
}
@keyframes panphoto{from{background-position:center 52%}to{background-position:center 70%}}
@media (max-width:780px){.hero__photo{background-attachment:scroll;animation:none;background-position:center 60%}}

/* Tinge o pôr do sol (tons quentes) com o azul da marca, preservando a
   luminosidade e a textura reais da foto — mix-blend-mode:color troca só
   matiz/saturação, não "pinta por cima". */
.hero__tint{position:absolute;inset:0;z-index:1;background:var(--brand-deep);mix-blend-mode:color;opacity:.55}

/* Gradiente concentrado à esquerda, onde mora o texto — a direita da foto
   (céu, reservatórios) permanece visível, sem ficar totalmente tampada. */
.hero__scrim{
  position:absolute;inset:0;z-index:1;
  background:
    linear-gradient(100deg,rgba(3,15,33,.95) 0%,rgba(3,15,33,.84) 26%,rgba(3,15,33,.46) 52%,rgba(3,15,33,.14) 72%,transparent 92%),
    linear-gradient(0deg,rgba(3,15,33,.7),transparent 42%);
}

.hero__in{position:relative;z-index:3;width:100%;max-width:1320px;margin-inline:auto;padding-inline:var(--pad)}
.hero__copy{max-width:620px}

.hero .eyebrow{color:var(--sky)}
.hero .eyebrow .dot{background:var(--sky);box-shadow:0 0 0 4px rgba(95,168,255,.2)}

.hero__h1{font-size:clamp(2.4rem,8.6vw,5rem);font-weight:600;letter-spacing:-.04em;line-height:1.02;margin-bottom:24px;text-shadow:0 4px 24px rgba(0,0,0,.35)}
.hero__h1 .line{display:block;overflow:hidden}
.hero__h1 .line>span{display:block;transform:translateY(105%);opacity:0;animation:rise .95s var(--ease-2) forwards}
.hero__h1 .line:nth-child(1)>span{animation-delay:.10s}
.hero__h1 .line:nth-child(2)>span{animation-delay:.20s}
.hero__h1 .line:nth-child(3)>span{animation-delay:.30s}
.hero__h1 .hl{color:var(--sky)}
@keyframes rise{to{transform:none;opacity:1}}

.hero__sub{color:rgba(255,255,255,.82);font-size:clamp(1rem,1.5vw,1.14rem);max-width:52ch;margin-bottom:32px;text-shadow:0 2px 16px rgba(0,0,0,.4)}
.hero__cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:clamp(38px,5vw,52px)}
.hero__cta .btn{flex:1 1 auto;min-width:min(100%,215px)}

.hero__stats{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(10px,3vw,28px);border-top:1px solid var(--line-inv);padding-top:24px;max-width:480px}
.hero__stats b{display:block;font-family:var(--ff-d);font-size:clamp(1.8rem,5vw,2.6rem);font-weight:600;line-height:1;letter-spacing:-.03em;margin-bottom:8px;color:#fff}
.hero__stats span{font-size:clamp(.7rem,1.6vw,.8rem);color:rgba(255,255,255,.68);line-height:1.4;display:block}

.hero__scroll{position:absolute;z-index:3;left:50%;bottom:clamp(20px,3.4vw,34px);transform:translateX(-50%);display:none;align-items:center;gap:11px;font-size:.72rem;letter-spacing:.22em;text-transform:uppercase;color:rgba(255,255,255,.6)}
.hero__scroll span{width:24px;height:38px;border:1px solid var(--line-inv-2);border-radius:99px;position:relative}
.hero__scroll span::after{content:"";position:absolute;top:8px;left:50%;width:3px;height:7px;border-radius:2px;background:var(--sky);transform:translateX(-50%);animation:sc 1.9s var(--ease) infinite}
@keyframes sc{0%{opacity:0;transform:translate(-50%,0)}30%{opacity:1}100%{opacity:0;transform:translate(-50%,14px)}}
@media (min-width:1000px){.hero__scroll{display:flex}}

/* Telas baixas (notebook, janela dividida): a tipografia acima é regida pela
   largura e, com pouca altura, empurrava botões e números para fora da tela.
   Aqui título, textos e respiros passam a acompanhar também a altura (vh),
   para a hero inteira caber na primeira dobra. */
@media (min-width:781px) and (max-height:960px){
  .hdr .brand__mark{width:clamp(92px,15vh,150px)}
  .hdr__in{padding-block:clamp(8px,1.6vh,14px)}
  .hero{min-height:100vh;min-height:100svh;padding:clamp(88px,19vh,136px) 0 clamp(14px,4vh,56px)}
  .hero__copy{max-width:min(760px,64vw)}
  .hero .eyebrow{margin-bottom:clamp(8px,2vh,20px)}
  .hero__h1{font-size:clamp(1.8rem,min(8.6vw,8.6vh),5rem);line-height:1;margin-bottom:clamp(10px,2.6vh,24px)}
  .hero__sub{font-size:clamp(.86rem,2.4vh,1.14rem);line-height:1.5;max-width:62ch;margin-bottom:clamp(12px,3.4vh,32px)}
  .hero__cta{margin-bottom:clamp(14px,4vh,52px)}
  .hero__cta .btn{flex:0 0 auto;min-height:clamp(40px,6.4vh,54px);padding-inline:clamp(20px,2.4vw,30px)}
  .hero__stats{padding-top:clamp(10px,2.4vh,24px)}
  .hero__stats b{font-size:clamp(1.2rem,4.8vh,2.6rem);margin-bottom:clamp(4px,1vh,8px)}
  .hero__stats span{font-size:clamp(.66rem,1.7vh,.8rem)}
  .hero__scroll{display:none}
}

/* =========================================================
   MARQUEE DE CLIENTES (texto)
   ========================================================= */
.marq{position:relative;z-index:3;background:var(--paper-2);border-bottom:1px solid var(--line);padding:20px 0;overflow:hidden}
.marq__label{position:absolute;left:var(--pad);top:50%;transform:translateY(-50%);font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--mute-2);background:var(--paper-2);padding-right:16px;z-index:2;display:none}
@media (min-width:780px){.marq__label{display:block}}
.marq__track{display:flex;width:max-content;animation:marq 64s linear infinite}
.marq:hover .marq__track{animation-play-state:paused}
.marq__set{display:flex;align-items:center;gap:clamp(18px,2.6vw,34px);padding-left:clamp(120px,14vw,220px);padding-right:clamp(18px,2.6vw,34px)}
.marq__set span{font-family:var(--ff-d);font-size:clamp(.86rem,2vw,1.04rem);font-weight:500;letter-spacing:-.01em;color:var(--brand);white-space:nowrap}
.marq__set i{color:var(--brand-mid);font-style:normal;opacity:.5}
@keyframes marq{to{transform:translateX(-50%)}}

/* =========================================================
   SOBRE
   ========================================================= */
.sobre{padding:var(--sec) 0}
.sobre__grid{display:grid;gap:clamp(36px,5vw,60px);margin-bottom:clamp(56px,7vw,90px)}
@media (min-width:940px){.sobre__grid{grid-template-columns:1.15fr .85fr;gap:clamp(56px,6vw,88px)}}

.sobre__txt p{color:var(--mute);margin-bottom:18px;max-width:62ch}
.sobre__txt .lead{color:var(--ink);font-size:clamp(1.06rem,2vw,1.3rem);line-height:1.55;font-family:var(--ff-d);font-weight:400;letter-spacing:-.01em;margin-bottom:20px}
.sobre__txt strong{color:var(--brand);font-weight:600}

.mvv{display:grid;gap:14px;margin-top:30px;grid-template-columns:repeat(auto-fit,minmax(min(100%,220px),1fr))}
.mvv__item{padding:20px;border-radius:14px;background:var(--paper-2);border:1px solid var(--line);transition:transform .4s var(--ease-2),border-color .3s}
.mvv__item:hover{transform:translateY(-4px);border-color:var(--line-2)}
.mvv__k{display:block;font-family:var(--ff-d);font-size:.78rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--brand-mid);margin-bottom:8px}
.mvv__item p{font-size:.88rem;color:var(--mute);margin:0}

/* Timeline */
.timeline{position:relative;padding-left:28px}
.timeline__line{position:absolute;left:5px;top:6px;bottom:6px;width:2px;background:var(--line-2);transform-origin:top;animation:drawLine 1.2s var(--ease-2) .2s both}
@keyframes drawLine{from{transform:scaleY(0)}to{transform:scaleY(1)}}
.tl__item{position:relative;padding-bottom:34px}
.tl__item:last-child{padding-bottom:0}
.tl__dot{position:absolute;left:-28px;top:4px;width:12px;height:12px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px var(--paper-2),0 0 0 5px var(--line-2)}
.tl__item b{display:block;font-family:var(--ff-d);font-size:1.3rem;color:var(--brand-deep);margin-bottom:6px;letter-spacing:-.02em}
.tl__item p{color:var(--mute);font-size:.92rem;max-width:38ch}

/* Equipe */
.equipe__h{font-size:1.5rem;margin-bottom:24px;color:var(--brand-deep)}
.equipe__grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr))}
.member{padding:22px;border-radius:14px;background:var(--paper);border:1px solid var(--line);transition:transform .4s var(--ease-2),box-shadow .4s,border-color .3s}
.member:hover{transform:translateY(-5px);box-shadow:0 20px 40px -26px rgba(4,36,74,.35);border-color:var(--line-2)}
.member__tag{display:inline-block;font-size:.68rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--brand-mid);background:rgba(10,74,143,.08);padding:5px 10px;border-radius:8px;margin-bottom:12px}
.member b{display:block;font-family:var(--ff-d);font-size:1.05rem;color:var(--brand-deep);margin-bottom:8px;letter-spacing:-.01em}
.member p{font-size:.86rem;color:var(--mute)}

/* =========================================================
   SERVIÇOS
   ========================================================= */
.serv{padding:var(--sec) 0;background:var(--paper-2);border-block:1px solid var(--line)}
.srows{border-top:1px solid var(--line)}
.srow{position:relative;display:grid;gap:6px 26px;grid-template-columns:auto 1fr;grid-template-areas:"n t" ". p";padding:clamp(22px,3vw,32px) 0;border-bottom:1px solid var(--line);transition:padding-left .45s var(--ease-2)}
.srow::before{content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--brand);transform:scaleY(0);transform-origin:top;transition:transform .45s var(--ease-2)}
.srow:hover{padding-left:22px}
.srow:hover::before{transform:scaleY(1)}
.srow__n{grid-area:n;font-family:var(--ff-d);font-size:.8rem;color:var(--brand-mid);padding-top:.45em;letter-spacing:.06em}
.srow h3{grid-area:t;font-size:clamp(1.2rem,3vw,1.7rem);font-weight:600;letter-spacing:-.02em;color:var(--brand-deep)}
.srow p{grid-area:p;color:var(--mute);max-width:56ch;font-size:.95rem}
@media (min-width:860px){.srow{grid-template-columns:70px 1fr 1fr;grid-template-areas:"n t p";align-items:center;gap:30px}.srow p{padding-right:20px}}

/* =========================================================
   PROJETOS
   ========================================================= */
.proj{padding:var(--sec) 0}
.filters{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:clamp(26px,3.6vw,40px)}
.filter{display:inline-flex;align-items:center;gap:8px;padding:11px 18px;border-radius:99px;border:1px solid var(--line-2);font-family:var(--ff-d);font-size:.86rem;font-weight:500;color:var(--mute);background:var(--paper);transition:color .3s,border-color .3s,background .3s,transform .3s var(--ease)}
.filter:hover{color:var(--brand);transform:translateY(-2px)}
.filter.is-on{background:var(--brand);border-color:var(--brand);color:#fff}

.cgrid{display:grid;gap:clamp(12px,1.6vw,18px);grid-template-columns:repeat(2,minmax(0,1fr))}
@media (min-width:720px){.cgrid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media (min-width:1100px){.cgrid{grid-template-columns:repeat(4,minmax(0,1fr))}}

.case{
  position:relative;padding:clamp(20px,2.4vw,26px);border-radius:var(--r);
  background:var(--paper);border:1px solid var(--line);
  opacity:0;transform:translateY(20px);animation:caseIn .7s var(--ease-2) forwards;
  transition:transform .4s var(--ease-2),box-shadow .4s,border-color .3s;
  grid-column:span 2;
}
@media (min-width:720px){.case{grid-column:span 1}}
@keyframes caseIn{to{opacity:1;transform:none}}
.case.is-off{display:none}
.case:hover{transform:translateY(-6px);box-shadow:0 24px 46px -28px rgba(4,36,74,.32);border-color:var(--line-2)}
.case__cat{display:block;font-size:.66rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--brand-mid);margin-bottom:14px}
.case__num{display:block;font-family:var(--ff-d);font-size:clamp(1.5rem,3.2vw,1.9rem);font-weight:600;color:var(--brand-deep);letter-spacing:-.02em;line-height:1}
.case__unit{display:block;font-size:.72rem;color:var(--mute-2);margin:5px 0 16px}
.case h3{font-size:1rem;font-weight:600;color:var(--ink);margin-bottom:8px;letter-spacing:-.01em;line-height:1.3}
.case p{font-size:.84rem;color:var(--mute);line-height:1.5}

/* =========================================================
   CLIENTES (grid de logos)
   ========================================================= */
/* Sem a seção de projetos (removida para revisão), a ordem ficou Serviços (cinza) → Clientes → Publicações;
   Clientes passa a branco e Publicações a cinza para manter a alternância de fundos. */
.clientes{padding:var(--sec) 0;background:var(--paper)}
.cliogrid{display:grid;gap:clamp(10px,1.4vw,14px);grid-template-columns:repeat(2,minmax(0,1fr))}
@media (min-width:640px){.cliogrid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media (min-width:960px){.cliogrid{grid-template-columns:repeat(5,minmax(0,1fr))}}
.clio{
  display:grid;place-items:center;aspect-ratio:1.5;padding:clamp(14px,2vw,22px);
  background:var(--paper);border:1px solid var(--line);border-radius:12px;box-shadow:0 10px 26px -22px rgba(4,36,74,.35);
  transition:transform .4s var(--ease-2),box-shadow .4s,border-color .3s;
}
.clio:hover{transform:translateY(-4px);box-shadow:0 18px 36px -24px rgba(4,36,74,.3);border-color:var(--line-2)}
.clio img{max-width:100%;max-height:100%;object-fit:contain;filter:grayscale(1) opacity(.72);transition:filter .4s}
.clio:hover img{filter:grayscale(0) opacity(1)}
/* logo em tons claros (AGEVAP): no cinza padrão quase some sobre o branco */
.clio--light img{filter:grayscale(1) brightness(.62) contrast(1.4)}

/* =========================================================
   PUBLICAÇÕES TÉCNICAS
   ========================================================= */
.pub{padding:var(--sec) 0;background:var(--paper-2);border-block:1px solid var(--line)}
.publist{max-width:900px;border-top:1px solid var(--line)}
.publist li{
  position:relative;padding:16px 0 16px 26px;border-bottom:1px solid var(--line);
  font-size:.94rem;color:var(--mute);line-height:1.5;transition:padding-left .35s var(--ease),color .3s;
}
.publist li::before{content:"";position:absolute;left:0;top:22px;width:8px;height:2px;background:var(--brand-mid);transition:width .3s var(--ease)}
.publist li:hover{padding-left:32px;color:var(--ink)}
.publist li:hover::before{width:14px}

/* =========================================================
   CTA / CONTATO (fundo azul-marinho escuro)
   ========================================================= */
.cta{position:relative;padding:var(--sec) 0;overflow:hidden;text-align:center;background:var(--brand-deep);color:#fff}
.cta__glow{position:absolute;bottom:-45%;left:50%;transform:translateX(-50%);width:min(1000px,150vw);aspect-ratio:2/1;background:radial-gradient(ellipse,rgba(95,168,255,.24),transparent 66%);filter:blur(30px);pointer-events:none}
.cta__in{position:relative;z-index:2;display:flex;flex-direction:column;align-items:center}
.cta__h{font-family:var(--ff-d);font-size:clamp(2.1rem,7vw,4.4rem);font-weight:600;letter-spacing:-.04em;line-height:1.04;margin-bottom:20px}
.cta__h em{font-style:normal;color:var(--sky)}
.cta__sub{color:rgba(255,255,255,.72);font-size:clamp(1rem,1.6vw,1.1rem);max-width:46ch;margin-bottom:36px}
.cta__btns{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;width:100%;margin-bottom:48px}
.cta__btns .btn{flex:1 1 auto;min-width:min(100%,235px)}

.cta__info{display:grid;gap:22px;grid-template-columns:repeat(auto-fit,minmax(min(100%,220px),1fr));width:100%;max-width:820px;border-top:1px solid var(--line-inv);padding-top:32px;text-align:left}
.cta__info span{display:block;font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:rgba(255,255,255,.5);margin-bottom:8px}
.cta__info p{font-size:.94rem;color:rgba(255,255,255,.9);line-height:1.5}
.cta__info a:hover{color:var(--sky)}

/* =========================================================
   RODAPÉ
   ========================================================= */
.ftr{border-top:1px solid var(--line);padding:clamp(44px,6vw,68px) 0 24px;background:var(--paper-2)}
.ftr__in{display:grid;gap:30px;padding-bottom:32px;border-bottom:1px solid var(--line)}
@media (min-width:860px){.ftr__in{grid-template-columns:1.4fr 1fr 1fr;gap:44px}}
.brand--ftr{margin-bottom:14px}
.ftr__brand p{color:var(--mute);font-size:.88rem;max-width:36ch}
.ftr__nav,.ftr__soc{display:flex;flex-direction:column;gap:11px;font-size:.9rem}
.ftr__nav a,.ftr__soc a{color:var(--mute);width:max-content;transition:color .3s,transform .3s var(--ease)}
.ftr__nav a:hover,.ftr__soc a:hover{color:var(--brand);transform:translateX(4px)}
@media (max-width:859px){
  .ftr__nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 18px}
  .ftr__nav a{width:auto}
}
.ftr__base{display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;padding-top:20px;font-size:.78rem;color:var(--mute-2)}

/* Crédito do desenvolvedor: deliberadamente menor e mais apagado que as
   informações do cliente acima, sem disputar atenção com a marca da Sarsan. */
.ftr__credit{padding-top:12px}
.ftr__credit a{font-size:.68rem;color:var(--mute-2);opacity:.55;transition:opacity .3s}
.ftr__credit a:hover{opacity:.9}

/* ---------- WhatsApp flutuante ---------- */
.wfloat{
  position:fixed;right:clamp(14px,2.4vw,26px);bottom:clamp(14px,2.4vw,26px);z-index:150;
  width:56px;height:56px;border-radius:50%;display:grid;place-items:center;
  background:#25D366;color:#fff;box-shadow:0 14px 32px -10px rgba(37,211,102,.65);
  transform:scale(0);transition:transform .5s var(--ease-2)}
.wfloat.is-in{transform:scale(1)}
.wfloat:hover{transform:scale(1.09)}
.wfloat::after{content:"";position:absolute;inset:0;border-radius:50%;border:2px solid #25D366;animation:pulse 2.6s var(--ease) infinite}
@keyframes pulse{0%{transform:scale(1);opacity:.7}100%{transform:scale(1.5);opacity:0}}

/* =========================================================
   REVEAL
   ========================================================= */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .85s var(--ease-2),transform .85s var(--ease-2)}
.reveal.is-in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
  .hero__h1 .line>span{transform:none;opacity:1}
  .case{opacity:1;transform:none}
  .wfloat{transform:scale(1)}
}