/* F&F Engenharia - estilos. Tokens de cor e tipografia */
:root{--y:#F0CB00;--k:#080808;--k2:#111;--w:#fff;--g:#F5F5F5;--t:#444;--r:14px}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:76px}
body{font-family:Manrope,system-ui,sans-serif;color:var(--k);background:var(--w);line-height:1.65;overflow-x:hidden}
img{display:block;max-width:100%}
a{color:inherit}
:focus-visible{outline:3px solid var(--y);outline-offset:3px}
.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;background:var(--y);padding:8px 14px;z-index:99}
.wrap{width:min(1180px,100% - 40px);margin:auto}.narrow{width:min(760px,100% - 40px)}
h1,h2,h3{line-height:1.12;letter-spacing:-.02em}
h1{font-size:clamp(2.4rem,7vw,5.2rem);font-weight:800;max-width:15ch}
h2{font-size:clamp(1.8rem,4vw,3rem);font-weight:800;max-width:20ch;margin-bottom:20px}
h3{font-size:1.15rem}
p{color:var(--t)}
.sub{max-width:60ch;margin-bottom:40px}
/* Botões */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:0 28px;border-radius:10px;font-weight:700;text-decoration:none;border:1.5px solid transparent;cursor:pointer;font:inherit;font-weight:700;transition:transform .25s,background .25s,color .25s}
.btn:hover{transform:translateY(-2px)}
.btn.y{background:var(--y);color:var(--k)}.btn.y:hover{background:#ffdf20}
.btn.o{border-color:var(--w);color:var(--w);background:transparent}.btn.o:hover{background:var(--w);color:var(--k)}
.btn.sm{min-height:42px;padding:0 18px}
.btn[disabled]{opacity:.7;cursor:wait}
/* Header */
header{position:fixed;inset:0 0 auto;z-index:50;transition:background .3s,box-shadow .3s}
header.on{background:rgba(8,8,8,.92);backdrop-filter:blur(10px);box-shadow:0 1px 0 rgba(255,255,255,.08)}
.bar{display:flex;align-items:center;justify-content:space-between;min-height:76px}
.logo{color:var(--w);font-weight:800;font-size:1.3rem;text-decoration:none}.logo span{color:var(--y);font-weight:500}
nav{display:flex;align-items:center;gap:28px}
nav a{color:var(--w);text-decoration:none;font-size:.95rem;position:relative}
nav a:not(.btn)::after{content:"";position:absolute;left:0;bottom:-6px;height:2px;width:0;background:var(--y);transition:width .3s}
nav a:not(.btn):hover::after{width:100%}
.burger{display:none;background:none;border:0;width:44px;height:44px;cursor:pointer;position:relative}
.burger i{position:absolute;left:10px;right:10px;height:2px;background:var(--w);transition:.3s}
.burger i:first-child{top:16px}.burger i:last-child{top:26px}
.burger[aria-expanded=true] i:first-child{top:21px;transform:rotate(45deg)}.burger[aria-expanded=true] i:last-child{top:21px;transform:rotate(-45deg)}
/* Hero */
.hero{position:relative;min-height:100svh;display:flex;align-items:center;color:var(--w);padding:130px 0 90px;background:linear-gradient(90deg,rgba(8,8,8,.92),rgba(8,8,8,.55)),url(https://images.unsplash.com/photo-1541888946425-d81bb19240f5?auto=format&fit=crop&w=1800&q=70) center/cover var(--k2);overflow:hidden}
.hero .wrap{position:relative;z-index:1}
.hero h1,.hero .lead,.hero .actions,.hero .tags{animation:rise .9s cubic-bezier(.2,.7,.2,1) both}
.hero .lead{animation-delay:.15s}.hero .actions{animation-delay:.3s}.hero .tags{animation-delay:.45s}
@keyframes rise{from{opacity:0;transform:translateY(26px)}}
.lead{color:#e6e6e6;font-size:clamp(1.05rem,2vw,1.3rem);max-width:56ch;margin:24px 0 36px}
.actions{display:flex;flex-wrap:wrap;gap:14px}
.tags{display:flex;flex-wrap:wrap;gap:12px;list-style:none;margin-top:48px}
.tags li{border-left:2px solid var(--y);padding-left:12px;font-size:.92rem;color:#ddd}
/* Régua de medição, elemento de assinatura do hero */
.ruler{position:absolute;right:0;top:0;bottom:0;width:34px;background:repeating-linear-gradient(to bottom,var(--y) 0 2px,transparent 2px 14px) right/14px 100% no-repeat,repeating-linear-gradient(to bottom,rgba(240,203,0,.6) 0 1px,transparent 1px 70px) right/26px 100% no-repeat;opacity:.55;transform-origin:top;animation:grow 1.6s ease-out both}
@keyframes grow{from{transform:scaleY(0)}}
/* Seções */
.sec{padding:clamp(70px,10vw,130px) 0}.gray{background:var(--g)}.dark{background:var(--k);color:var(--w)}.dark p{color:#bdbdbd}
.impact{background:var(--k2);color:var(--w);padding:48px 0}.impact p{color:#aaa;font-size:.95rem}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.impact .grid4>div{border-top:1px solid rgba(255,255,255,.18);padding-top:18px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,6vw,80px);align-items:center}
.photo{border-radius:var(--r);overflow:hidden;aspect-ratio:4/5;background:var(--k2)}
.photo img{width:100%;height:112%;object-fit:cover;will-change:transform}
.rev .photo{order:-1}
.counts{display:flex;gap:36px;margin-top:36px;flex-wrap:wrap}
.counts b{display:block;font-size:3rem;line-height:1;font-weight:800}.counts span{font-size:.9rem;color:var(--t)}
.counts div{border-left:3px solid var(--y);padding-left:14px}
/* Cards de serviço */
.cards{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;padding:10px 0 24px;scroll-behavior:smooth}
.cards::-webkit-scrollbar{display:none}
.car-ctrl{display:flex;justify-content:flex-end;gap:10px}
.cbtn{width:52px;height:52px;border-radius:50%;border:1.5px solid var(--k);background:var(--w);cursor:pointer;display:grid;place-items:center;transition:background .25s,transform .25s,opacity .25s}
.cbtn svg{width:22px;height:22px;fill:none;stroke:var(--k);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.cbtn:hover:not(:disabled){background:var(--y);border-color:var(--y);transform:translateY(-2px)}
.cbtn:disabled{opacity:.35;cursor:default}
@media(max-width:1100px){.card{flex-basis:calc(50% - 10px)!important}}
.card{flex:0 0 calc(33.333% - 14px);scroll-snap-align:start;background:var(--w);border-radius:var(--r);padding:30px 26px;border:1px solid #e8e8e8;position:relative;overflow:hidden;display:flex;flex-direction:column;transition:transform .35s,background .35s,color .35s,box-shadow .35s}
.card::before{content:"";position:absolute;left:0;top:0;height:4px;width:0;background:var(--y);transition:width .4s}
.card:hover{background:var(--k);color:var(--w);transform:translateY(-6px);box-shadow:0 18px 40px rgba(0,0,0,.08)}
.card:hover::before{width:100%}.card:hover p,.card:hover li{color:#cfcfcf}
.card-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px}
.card svg{width:34px;height:34px;fill:none;stroke:var(--k);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;background:var(--y);padding:7px;box-sizing:content-box;border-radius:10px}
.num{font-weight:800;font-size:.9rem;color:#999}
.card h3{margin-bottom:8px}.card p{font-size:.95rem}
.card ul{list-style:none;margin:18px 0 24px;font-size:.9rem;color:var(--t);flex:1}
.card li{padding:5px 0 5px 16px;position:relative;color:var(--t)}.card li::before{content:"";position:absolute;left:0;top:14px;width:6px;height:2px;background:var(--y)}
.more{font-weight:700;text-decoration:none;border-bottom:2px solid var(--y);align-self:flex-start;padding-bottom:2px}
/* Diferenciais */
.diff>div{border-top:2px solid var(--y);padding-top:20px}.diff h3{margin-bottom:8px;color:var(--w)}
/* Timeline */
.timeline{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;counter-reset:s}
.timeline::before{content:"";position:absolute;top:14px;left:0;right:0;height:2px;background:#e3e3e3}
.timeline li{position:relative;padding-top:48px;counter-increment:s}
.timeline li::before{content:counter(s);position:absolute;top:0;left:0;width:30px;height:30px;border-radius:50%;background:var(--y);display:grid;place-items:center;font-weight:800;font-size:.85rem}
.timeline b{display:block;font-size:1.2rem;margin-bottom:6px}.timeline span{color:var(--t);font-size:.95rem}
.chk{list-style:none;margin-top:24px}.chk li{padding:10px 0 10px 28px;border-bottom:1px solid #ddd;position:relative}.chk li::before{content:"";position:absolute;left:0;top:19px;width:14px;height:3px;background:var(--y)}
/* Galeria */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);grid-auto-rows:260px;gap:16px}
.gallery figure{position:relative;border-radius:var(--r);overflow:hidden;background:var(--k2)}
.gallery .wide{grid-column:span 2}.gallery .tall{grid-row:span 2}
.gallery img{width:100%;height:100%;object-fit:cover;transition:transform .7s}
.gallery figure:hover img{transform:scale(1.06)}
.gallery figcaption{position:absolute;inset:auto 0 0;padding:40px 18px 16px;color:var(--w);font-weight:600;font-size:.9rem;background:linear-gradient(transparent,rgba(0,0,0,.8));transform:translateY(100%);transition:transform .4s}
.gallery figure:hover figcaption{transform:none;border-bottom:3px solid var(--y)}
.narrow p+p{margin-top:16px}
.cta .sub{margin-bottom:30px}
/* Formulário */
form{display:grid;gap:18px;margin-top:30px}.row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
label{display:grid;gap:6px;font-weight:600;font-size:.92rem}
input,select,textarea{font:inherit;padding:14px;border:1.5px solid #ccc;border-radius:10px;background:var(--w);min-height:50px;width:100%}
input:focus,select:focus,textarea:focus{border-color:var(--k);outline:3px solid var(--y)}
.bad{border-color:#c0261a!important}
.hp{position:absolute;left:-9999px;height:0;opacity:0}
#msg{font-weight:600}.ok{color:#126b2f}.err{color:#b3261e}
/* Localização */
address{font-style:normal;margin:0 0 28px;font-size:1.15rem}
.map{border-radius:var(--r);overflow:hidden;min-height:380px;background:var(--k2);border:1px solid #ddd}
.map iframe{width:100%;height:100%;min-height:380px;border:0;display:block}
/* Footer */
footer{background:var(--k);color:var(--w);padding:60px 0 24px}
.foot{display:grid;grid-template-columns:1.4fr 1fr 1.4fr;gap:30px}
footer p{color:#b5b5b5}footer nav{flex-direction:column;align-items:flex-start;gap:8px}
.copy{text-align:center;font-size:.85rem;margin-top:44px;border-top:1px solid #222;padding-top:20px}
/* WhatsApp */
.wa{position:fixed;right:18px;bottom:18px;width:58px;height:58px;border-radius:50%;background:#25D366;color:#fff;display:grid;place-items:center;z-index:60;box-shadow:0 8px 24px rgba(0,0,0,.25);animation:pop .6s 1.5s cubic-bezier(.3,1.5,.5,1) both;transition:transform .25s}
.wa:hover{transform:scale(1.08)}.wa svg{width:30px;height:30px}
.ig{position:fixed;right:18px;bottom:88px;width:58px;height:58px;border-radius:50%;background:linear-gradient(45deg,#f9a03f,#e1306c 55%,#833ab4);color:#fff;display:grid;place-items:center;z-index:60;box-shadow:0 8px 24px rgba(0,0,0,.25);animation:pop .6s 1.7s cubic-bezier(.3,1.5,.5,1) both;transition:transform .25s}
.ig:hover{transform:scale(1.08)}.ig svg{width:28px;height:28px}
@keyframes pop{from{transform:scale(0);opacity:0}}
/* Reveal controlado por JS */
.js .rv{opacity:0;transform:translateY(24px);transition:opacity .8s,transform .8s}.js .rv.in{opacity:1;transform:none}
/* Responsivo */
@media(max-width:900px){
.grid4{grid-template-columns:1fr 1fr}.split,.foot{grid-template-columns:1fr}.rev .photo{order:0}.photo{aspect-ratio:16/10}
.timeline{grid-template-columns:1fr;gap:28px}.timeline::before{top:0;bottom:0;left:14px;right:auto;width:2px;height:auto}.timeline li{padding:2px 0 0 52px}
.gallery{grid-template-columns:1fr 1fr;grid-auto-rows:200px}
.burger{display:block}
nav{position:fixed;inset:76px 0 auto;background:var(--k);flex-direction:column;align-items:stretch;gap:0;padding:10px 20px 24px;transform:translateY(-130%);transition:transform .35s;max-height:calc(100svh - 76px);overflow:auto}
nav.open{transform:none}nav a{padding:14px 0;border-bottom:1px solid #222;font-size:1.05rem}nav .btn{margin-top:16px;border:0}
header.menu{background:var(--k)}
.cards{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:14px;padding-bottom:16px;margin-right:-20px;padding-right:20px;-webkit-overflow-scrolling:touch}
.card{flex:0 0 82%!important;scroll-snap-align:start}.car-ctrl{display:none}.cards{margin-right:-20px;padding-right:20px}
}
@media(max-width:560px){.row{grid-template-columns:1fr}.btn{width:100%}.grid4{grid-template-columns:1fr}.gallery{grid-template-columns:1fr}.gallery .wide,.gallery .tall{grid-column:auto;grid-row:auto}.ruler{width:18px}.wa{width:54px;height:54px}.ig{width:54px;height:54px;bottom:82px}footer{padding-bottom:150px}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}.js .rv{opacity:1;transform:none}}