/* ACT Carbon · site institucional */
:root{
  --navy:#0a2b42;
  --navy-2:#0f3a58;
  --blue:#56a2d6;
  --blue-2:#3e7ca6;
  --gray:#efefef;
  --gray-2:#e3e3e3;
  --ink:#0a2b42;
  --text:#0f2436;
  --white:#fff;
  --radius:12px;
  --curve:clamp(90px,16vw,190px);
  --container:1088px;
  --header-h:94px;
  --font:"Saira",system-ui,-apple-system,"Segoe UI",sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);font-size:17px;line-height:1.2;color:var(--text);background:var(--white);-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3{margin:0;color:var(--ink);font-weight:700;letter-spacing:-.005em;line-height:1.08}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
.container{width:min(100% - 32px,var(--container));margin-inline:auto}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- botões e rótulos ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5em;min-height:40px;padding:0 18px;border-radius:6px;border:0;background:var(--navy);color:var(--white);font-weight:700;font-size:15px;letter-spacing:-.01em;cursor:pointer;transition:background .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease)}
.btn:hover{background:var(--navy-2);transform:translateY(-2px);box-shadow:0 8px 20px -10px rgba(10,43,66,.6)}
.btn--blue{background:var(--blue)}
.btn--blue:hover{background:#6bb1e0}
.btn--lg{min-width:120px}
.eyebrow{display:block;font-size:17px;font-weight:500;text-transform:uppercase;letter-spacing:.01em;color:var(--ink);margin-bottom:1.3rem}
.section-title{font-size:clamp(28px,3.2vw,36px);font-weight:700}

/* ---------- header ---------- */
.header{position:sticky;top:0;z-index:50;background:var(--white);height:var(--header-h);transition:box-shadow .3s var(--ease)}
.header.is-scrolled{box-shadow:0 6px 24px -14px rgba(10,43,66,.35)}
.header__inner{height:100%;display:grid;grid-template-columns:1fr 180px 1fr;column-gap:clamp(24px,3.4vw,46px);align-items:center;position:relative}
.nav{display:flex;align-items:center;gap:clamp(20px,5.2vw,66px);font-size:16px;font-weight:500}
.nav a{position:relative;padding:6px 0}
.nav a::after{content:"";position:absolute;left:0;right:0;bottom:2px;height:1.5px;background:var(--navy);transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease)}
.nav a:hover::after,.nav a[aria-current="page"]::after{transform:scaleX(1)}
.nav a[aria-current="page"]{font-weight:700}
.nav--right{gap:clamp(20px,4.6vw,60px)}
.header__actions{display:flex;align-items:center;gap:14px}
.header__actions .btn{min-height:34px;padding:0 17px;font-size:14px}
.logo-tab{position:absolute;left:50%;top:0;transform:translateX(-50%);width:180px;height:142px;background:var(--white);border-radius:0 0 26px 26px;display:grid;place-items:center;box-shadow:0 10px 18px -12px rgba(10,43,66,.35);z-index:2;transition:height .35s var(--ease),width .35s var(--ease)}
.logo-tab img{width:144px;transition:width .35s var(--ease)}
.header.is-scrolled .logo-tab{height:112px;width:150px}
.header.is-scrolled .logo-tab img{width:118px}
.header__left,.header__right{display:flex;align-items:center;min-width:0}
.header__left{grid-column:1}
.header__right{grid-column:3;justify-content:space-between;gap:20px}

.lang{position:relative}
.lang summary{list-style:none;display:flex;align-items:center;gap:8px;height:34px;padding:0 12px 0 10px;border-radius:6px;background:var(--gray-2);font-size:14px;cursor:pointer;user-select:none}
.lang summary::-webkit-details-marker{display:none}
.lang summary svg{width:12px;height:12px;margin-left:14px;transition:transform .25s var(--ease)}
.lang[open] summary svg{transform:rotate(180deg)}
.lang .flag{width:21px;height:14px;border-radius:2px;flex:none}
.lang ul{position:absolute;right:0;top:calc(100% + 6px);min-width:100%;margin:0;padding:6px;list-style:none;background:var(--white);border-radius:8px;box-shadow:0 14px 30px -12px rgba(10,43,66,.35)}
.lang li a{display:flex;align-items:center;gap:8px;padding:8px 10px;border-radius:5px;font-size:14px}
.lang li a:hover{background:var(--gray)}

.burger{display:none;width:42px;height:42px;border:0;background:transparent;padding:10px;cursor:pointer}
.burger span{display:block;height:2px;background:var(--navy);border-radius:2px;transition:transform .3s var(--ease),opacity .3s}
.burger span+span{margin-top:6px}
.menu-open .burger span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.menu-open .burger span:nth-child(2){opacity:0}
.menu-open .burger span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}
.drawer{display:none}

/* ---------- hero ---------- */
.hero{position:relative;height:clamp(460px,46vw,594px);overflow:hidden;background:var(--navy);color:var(--white)}
.hero__slide{position:absolute;inset:0;opacity:0;transition:opacity 1.1s var(--ease)}
.hero__slide.is-active{opacity:1}
.hero__slide img{width:100%;height:100%;object-fit:cover;transform:scale(1.06);transition:transform 7s linear}
.hero__slide.is-active img{transform:scale(1)}
.hero__content{position:relative;height:100%;display:flex;align-items:flex-end;justify-content:space-between;gap:24px;padding-bottom:clamp(56px,6vw,66px)}
.hero h1{color:var(--white);font-size:clamp(44px,5.8vw,74px);line-height:1.02;font-weight:700;max-width:7.4em;text-shadow:0 2px 30px rgba(0,0,0,.2)}
.hero__tag{display:inline-block;border:2px solid var(--blue);padding:4px 9px;font-size:clamp(16px,1.6vw,20px);color:var(--white);background:rgba(10,43,66,.15);white-space:nowrap;margin-bottom:6px;transition:opacity .4s var(--ease)}
.hero__dots{position:absolute;left:50%;bottom:22px;transform:translateX(-50%);display:flex;gap:8px;z-index:2}

.dots{display:flex;gap:9px}
.dots button{width:7px;height:7px;padding:0;border:0;border-radius:50%;background:#8b9097;cursor:pointer;transition:background .3s,transform .3s}
.dots button.is-active{background:var(--navy);transform:scale(1.15)}
.hero__dots button{background:rgba(255,255,255,.45)}
.hero__dots button.is-active{background:var(--white)}

/* ---------- cards soluções/produtos ---------- */
.cards{padding:clamp(56px,7vw,76px) 0 42px}
.cards__grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(20px,5vw,64px)}
.card{position:relative;overflow:hidden;border-radius:var(--radius) var(--curve) var(--radius) var(--radius);padding:clamp(32px,4vw,52px) clamp(28px,3.4vw,44px) 40px 36px;color:var(--white);display:flex;flex-direction:column;align-items:flex-start;min-height:470px;transition:transform .45s var(--ease),box-shadow .45s var(--ease)}
.card:hover{transform:translateY(-6px);box-shadow:0 28px 50px -30px rgba(10,43,66,.7)}
.card--navy{background:var(--navy)}
.card--blue{background:var(--blue)}
.card h2{color:var(--white);font-size:clamp(28px,2.6vw,34px);margin-bottom:1.25em;line-height:1.14}
.card .eyebrow{color:var(--white);font-size:16px;margin-bottom:1.9rem}
.card p{font-size:17px;line-height:1.2;max-width:26em}
.card .btn{margin-top:auto}
.card__petal{position:absolute;right:-26px;top:-34px;width:190px;opacity:1;pointer-events:none;transition:transform .8s var(--ease)}
.card--navy .card__petal{opacity:.9}
.card:hover .card__petal{transform:rotate(18deg)}

/* ---------- slider segmentos ---------- */
.segments{padding:0 0 clamp(60px,7vw,80px)}
.segments__box{position:relative;background:var(--gray);border-radius:var(--radius);display:grid;grid-template-columns:minmax(0,.86fr) minmax(0,1.14fr);min-height:478px;overflow:hidden}
.segments__text{padding:56px 36px 32px;display:flex;flex-direction:column}
.segments__text .eyebrow{margin-bottom:.3rem}
.segments__sub{font-size:17px;margin-bottom:auto}
.segments__track{position:relative;min-height:230px;margin-top:40px}
.segments__item{position:absolute;inset:0;opacity:0;visibility:hidden;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease),visibility .6s}
.segments__item.is-active{position:relative;opacity:1;visibility:visible;transform:none}
.segments__item h3{font-size:clamp(28px,2.7vw,34px);margin-bottom:.9em}
.segments__item p{max-width:22em}
.segments__item .btn{margin-top:4px}
.segments .dots{margin-top:40px}
.segments__media{position:relative}
.segments__media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:left bottom;opacity:0;transition:opacity .8s var(--ease)}
.segments__media img.is-active{opacity:1}

/* ---------- formas do carvão ---------- */
.forms{text-align:center;padding-top:10px}
.forms .eyebrow{margin-bottom:.5rem}
.forms .section-title{margin-bottom:26px}
.forms__art{position:relative;width:min(100%,956px);margin:0 auto;aspect-ratio:1434/618}
.forms__art>img{width:100%;height:100%}
.forms__link{position:absolute;color:var(--white);font-size:clamp(17px,2.7vw,34px);font-weight:300;line-height:1.08;text-align:left;text-shadow:0 2px 16px rgba(0,0,0,.5);transition:transform .35s var(--ease)}
.forms__link b{display:block;font-weight:700}
.forms__link:hover{transform:translateY(-4px)}
.forms__link--gran{left:4.3%;top:53%}
.forms__link--pulv{left:50%;top:22%;text-align:center;transform:translateX(-50%)}
.forms__link--pulv:hover{transform:translate(-50%,-4px)}
.forms__link--pele{right:4.3%;top:53%;text-align:right}

/* ---------- blog ---------- */
.blog{background:var(--gray);padding:clamp(56px,6vw,64px) 0 clamp(56px,6vw,64px)}
.blog .section-title{margin-bottom:46px}
.blog__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(24px,3.2vw,42px)}
.post h3{color:var(--blue);font-size:22px;font-weight:600;line-height:1.12;margin-bottom:.35em;transition:color .25s}
.post p{font-size:17px;line-height:1.18}
.post:hover h3{color:var(--blue-2)}
.post__more{display:inline-block;margin-top:14px;font-weight:700;font-size:15px;color:var(--navy)}

/* ---------- contato ---------- */
.contact{padding:clamp(56px,6vw,54px) 0 clamp(56px,6vw,64px)}
.contact__box{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);background:var(--gray);border-radius:var(--radius);min-height:478px;overflow:hidden}
.contact__media{position:relative;color:var(--white);display:flex;flex-direction:column;justify-content:space-between;padding:40px 32px 50px 30px;isolation:isolate}
.contact__media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:left top;z-index:-1}
.contact__media .eyebrow{color:var(--white);font-size:16px}
.contact__media h2{color:var(--white);font-size:clamp(28px,2.7vw,34px);text-align:right;margin-bottom:.4em}
.contact__media p{text-align:right;margin-left:auto;max-width:12.2em;line-height:1.18}
.form{padding:60px 44px 40px;display:flex;flex-direction:column;gap:42px;align-items:flex-start}
.field{width:100%;max-width:456px}
.field input,.field textarea{width:100%;height:43px;padding:0 14px;border:1.5px solid var(--navy);border-radius:6px;background:transparent;font-size:17px;color:var(--navy);transition:border-color .25s,box-shadow .25s,background .25s}
.field textarea{height:43px;padding-top:9px;resize:vertical;min-height:43px;line-height:1.2}
.field input::placeholder,.field textarea::placeholder{color:var(--navy);opacity:1}
.field input:focus,.field textarea:focus{outline:none;background:#fff;box-shadow:0 0 0 4px rgba(86,162,214,.25);border-color:var(--blue-2)}
.form .btn{min-width:120px}
.form__msg{font-size:15px;color:var(--navy);min-height:1.2em;margin:-24px 0 0}

/* ---------- footer ---------- */
.footer{position:relative;color:var(--white);background:var(--navy) url(../img/footer-bg.webp) center/cover no-repeat;padding:56px 0 26px}
.footer__top{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:56px}
.footer__logo{width:165px}
.social{display:flex;align-items:center;gap:14px}
.social a{display:grid;place-items:center;height:36px;transition:transform .25s var(--ease),opacity .25s}
.social a:hover{transform:translateY(-3px);opacity:.8}
.social img{height:30px;width:auto}
.footer__cols{display:grid;grid-template-columns:1fr .9fr 1.05fr 1.2fr;gap:32px}
.footer h4{margin:0 0 16px;font-size:17px;font-weight:700}
.footer ul{list-style:none;margin:0;padding:0}
.footer li{margin-bottom:17px;font-size:17px}
.footer__cols>div:first-child li{margin-bottom:19px;font-size:18px}
.footer a{transition:opacity .2s}
.footer a:hover{opacity:.7}
.footer address{font-style:normal;font-size:17px;line-height:1.55;white-space:nowrap}
.footer__copy{margin-top:56px;text-align:center;font-size:14px;font-weight:500}

/* ---------- páginas internas ---------- */
.page-head{background:var(--gray);padding:clamp(48px,6vw,64px) 0 clamp(44px,5vw,52px)}
.page-head h1{font-size:clamp(38px,3.7vw,46px)}
.page-head p{margin-top:12px;font-size:18px;max-width:40em}
.rows{padding:clamp(40px,5vw,40px) 0 20px}
.row{display:grid;grid-template-columns:minmax(0,.82fr) minmax(0,1.18fr);gap:clamp(28px,5vw,64px);align-items:center;padding:0 0 clamp(44px,5vw,66px);scroll-margin-top:calc(var(--header-h) + 60px)}
.row--flip{grid-template-columns:minmax(0,1.18fr) minmax(0,.82fr)}
.row--flip .row__media{order:-1}
.row--even{grid-template-columns:1fr 1fr}
.row h2{font-size:clamp(28px,2.7vw,34px);margin-bottom:.95em}
.row p{font-size:17px;line-height:1.18}
.row .btn{margin-top:14px}
.row__media img{width:100%}
.intro{padding:clamp(40px,5vw,56px) 0 clamp(40px,5vw,64px)}
.intro h2{font-size:clamp(28px,2.7vw,34px);margin-bottom:1em}
.intro p{font-size:17px;line-height:1.18}

.posts{padding:56px 0 20px}
.posts .blog__grid{row-gap:48px}
.posts .post{background:var(--gray);border-radius:var(--radius) 70px var(--radius) var(--radius);padding:32px 28px}

/* ---------- reveal ---------- */
.js .reveal{opacity:0;transform:translateY(28px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.js .reveal.is-in{opacity:1;transform:none}
.js .reveal[data-delay="1"]{transition-delay:.12s}
.js .reveal[data-delay="2"]{transition-delay:.24s}

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

/* ---------- responsivo ---------- */
@media (max-width:1080px){
  .nav{gap:24px}
  .nav--right{gap:24px}
}
@media (max-width:960px){
  :root{--header-h:72px}
  .nav,.header__actions .lang,.header__actions .btn{display:none}
  .burger{display:block}
  .header__inner{display:flex;justify-content:flex-end}
  .header__left{display:none}
  .logo-tab{left:16px;transform:none;width:124px;height:96px;border-radius:0 0 20px 20px}
  .logo-tab img{width:98px}
  .header.is-scrolled .logo-tab{width:108px;height:80px}
  .header.is-scrolled .logo-tab img{width:84px}
  .header__right .nav{display:none}
  .drawer{display:block;position:fixed;inset:var(--header-h) 0 0 0;background:var(--white);padding:40px 24px 32px;transform:translateX(100%);transition:transform .45s var(--ease);overflow:auto;z-index:40}
  .menu-open .drawer{transform:none}
  .menu-open{overflow:hidden}
  .drawer nav{display:flex;flex-direction:column}
  .drawer nav a{font-size:26px;font-weight:600;padding:14px 0;border-bottom:1px solid var(--gray-2);color:var(--navy)}
  .drawer nav a[aria-current="page"]{color:var(--blue-2)}
  .drawer__foot{margin-top:32px;display:flex;gap:12px;align-items:center;flex-wrap:wrap}
  .drawer .lang ul{right:auto;left:0;top:auto;bottom:calc(100% + 6px)}
  .hero__content{flex-direction:column;align-items:flex-start;justify-content:flex-end}
  .cards__grid,.blog__grid,.segments__box,.contact__box,.row,.row--flip,.row--even{grid-template-columns:1fr}
  .row--flip .row__media{order:0}
  .row__media{order:-1}
  .card{min-height:0}
  .card .btn{margin-top:18px}
  .segments__media{order:-1;aspect-ratio:954/718}
  .segments__text{padding:32px 24px 28px}
  .segments__track{margin-top:28px}
  .contact__media{min-height:360px}
  .form{padding:36px 24px 36px;gap:26px}
  .form__msg{margin-top:-10px}
  .field{max-width:none}
  .footer__cols{grid-template-columns:1fr 1fr;row-gap:36px}
  .footer address{white-space:normal}
}
@media (max-width:560px){
  body{font-size:16px}
  .forms__link{font-size:15px}
  .footer__top{flex-direction:column;gap:28px}
  .footer__cols{grid-template-columns:1fr}
  .card{padding:30px 24px 30px}
  .card__petal{width:130px;right:-18px;top:-22px}
}

/* ---------- busca ---------- */
.search-btn{width:34px;height:34px;display:grid;place-items:center;padding:0;border:0;border-radius:6px;background:transparent;color:var(--navy);cursor:pointer;transition:background .25s}
.search-btn:hover,.search-btn[aria-expanded="true"]{background:var(--gray-2)}
.search-btn svg{width:19px;height:19px}
.search-btn--mobile{display:none}
.search{position:absolute;left:0;right:0;top:100%;background:var(--white);box-shadow:0 24px 40px -26px rgba(10,43,66,.45);border-top:1px solid var(--gray-2);padding:58px 0 26px;animation:searchIn .3s var(--ease)}
.search[hidden]{display:none}
@keyframes searchIn{from{opacity:0;transform:translateY(-10px)}}
.search__form{display:flex;align-items:center;gap:12px;border-bottom:2px solid var(--navy);padding:0 4px 10px;color:var(--navy)}
.search__form>svg{width:22px;height:22px;flex:none}
.search__form input{flex:1;min-width:0;border:0;outline:0;background:transparent;font-size:clamp(20px,2.4vw,26px);font-weight:500;color:var(--navy)}
.search__form input::placeholder{color:#8b9097}
.search__form input::-webkit-search-cancel-button{display:none}
.search__close{border:0;background:transparent;font-size:30px;line-height:1;color:var(--navy);cursor:pointer;padding:0 4px}
.search__results{list-style:none;margin:0;padding:0;max-height:min(56vh,440px);overflow:auto}
.search__results li a{display:block;padding:14px 4px;border-bottom:1px solid var(--gray-2);transition:background .2s,padding .2s}
.search__results li a:hover,.search__results li a:focus{background:var(--gray);padding-left:12px;outline:0}
.search__results small{display:block;font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--blue-2);margin-bottom:2px}
.search__results b{display:block;font-size:18px;color:var(--navy)}
.search__results span{display:block;font-size:15px;color:#4a5a68;margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.search__results mark{background:rgba(86,162,214,.3);color:inherit;border-radius:2px}
.search__empty{padding:18px 4px;color:#4a5a68}

/* ---------- blog: busca e categorias ---------- */
.blog-tools{display:flex;align-items:center;justify-content:space-between;gap:20px 32px;flex-wrap:wrap;margin-bottom:40px}
.blog-search{display:flex;align-items:center;gap:10px;height:43px;padding:0 14px;border:1.5px solid var(--navy);border-radius:6px;flex:1 1 280px;max-width:380px;color:var(--navy);transition:box-shadow .25s}
.blog-search:focus-within{box-shadow:0 0 0 4px rgba(86,162,214,.25)}
.blog-search svg{width:18px;height:18px;flex:none}
.blog-search input{flex:1;min-width:0;border:0;outline:0;background:transparent;font-size:17px;color:var(--navy)}
.blog-search input::placeholder{color:var(--navy);opacity:.75}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{height:36px;padding:0 16px;border-radius:99px;border:1.5px solid var(--navy);background:transparent;color:var(--navy);font-size:15px;font-weight:600;cursor:pointer;transition:background .2s,color .2s}
.chip:hover{background:var(--gray)}
.chip.is-active{background:var(--navy);color:var(--white)}
.post__cat{display:inline-block;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--navy);background:rgba(86,162,214,.22);border-radius:99px;padding:4px 10px;margin-bottom:12px}
.post[hidden]{display:none}
.blog-empty{padding:24px 0 40px;font-size:18px}

/* ---------- whatsapp ---------- */
.wa{position:fixed;right:22px;bottom:22px;z-index:45;display:flex;align-items:center;height:58px;min-width:58px;border-radius:99px;background:#25d366;color:#fff;box-shadow:0 12px 26px -10px rgba(0,0,0,.45);overflow:hidden;transition:transform .3s var(--ease),box-shadow .3s var(--ease)}
.wa svg{width:30px;height:30px;margin:0 14px;flex:none}
.wa span{max-width:0;white-space:nowrap;font-weight:700;font-size:15px;transition:max-width .4s var(--ease),padding .4s var(--ease)}
.wa:hover{transform:translateY(-3px);box-shadow:0 18px 30px -12px rgba(0,0,0,.5)}
.wa:hover span,.wa:focus-visible span{max-width:180px;padding-right:20px}
.wa::before{content:"";position:absolute;inset:0;border-radius:inherit;box-shadow:0 0 0 0 rgba(37,211,102,.55);animation:waPulse 2.6s infinite}
@keyframes waPulse{70%{box-shadow:0 0 0 16px rgba(37,211,102,0)}100%{box-shadow:0 0 0 0 rgba(37,211,102,0)}}
.btn--wa{background:#25d366}
.btn--wa:hover{background:#1fb858}
.btn--wa svg{width:18px;height:18px}
.menu-open .wa{display:none}

@media (max-width:960px){
  .header__actions{display:none}
  .search-btn--mobile{display:grid;width:42px;height:42px}
  .search{padding-top:44px}
  .wa{right:16px;bottom:16px;height:54px;min-width:54px}
  .wa svg{width:28px;height:28px;margin:0 13px}
}
.nav--right{gap:clamp(16px,2.4vw,30px)}
.header__actions{gap:10px}
.lang summary svg{margin-left:4px}