:root{
  --y:#f5b01c; --y2:#ffc83d; --bk:#0b0b0c; --bk2:#131315; --bk3:#1b1b1e; --line:#2a2a2e;
  --tx:#f4f4f1; --mu:#b4b4ae;
  --ff-h:'Archivo',system-ui,sans-serif; --ff-b:'Inter',system-ui,sans-serif;
  --ease:cubic-bezier(.2,.7,.2,1); --hh:76px;
}
*,*::before,*::after{box-sizing:border-box}
html{overflow-x:clip;scroll-behavior:smooth;scroll-padding-top:var(--hh)}
body{-webkit-tap-highlight-color:transparent;-webkit-text-size-adjust:100%;margin:0;background:var(--bk);color:var(--tx);font:400 16px/1.65 var(--ff-b);overflow-x:hidden;-webkit-font-smoothing:antialiased}
body.is-loading{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--ff-h);line-height:1.05;margin:0;letter-spacing:-.01em}
p{margin:0 0 1rem}
em{font-style:normal;color:var(--y)}
.wrap{width:min(1180px,100% - 2rem);margin-inline:auto}
.ic{width:1.25em;height:1.25em;flex:none}.ic.lg{width:2rem;height:2rem}.ic.xl{width:2.6rem;height:2.6rem}.ic.huge{width:5rem;height:5rem}
:focus-visible{outline:3px solid var(--y);outline-offset:3px;border-radius:4px}
.section{position:relative;padding:clamp(4.5rem,9vw,8rem) 0;overflow:hidden}
.kicker{font:800 .8rem/1 var(--ff-h);letter-spacing:.25em;text-transform:uppercase;color:var(--y);display:flex;align-items:center;gap:.8rem;margin-bottom:1rem}
.kicker::before{content:"";width:34px;height:3px;background:var(--y)}
h2{font-size:clamp(2rem,4.6vw,3.6rem);font-weight:900;text-transform:uppercase}
.sec-head{margin-bottom:3rem;max-width:760px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.6rem;min-height:48px;padding:.8rem 1.4rem;font:800 .85rem/1 var(--ff-h);letter-spacing:.06em;text-transform:uppercase;border-radius:6px;border:2px solid transparent;cursor:pointer;transition:transform .25s var(--ease),background .25s,color .25s,box-shadow .25s;position:relative;overflow:hidden}
.btn-lg{padding:1rem 1.8rem;font-size:.92rem}
.btn-y{background:var(--y);color:#111}
.btn-y:hover{background:var(--y2);transform:translateY(-3px);box-shadow:0 12px 30px -8px rgba(245,176,28,.55)}
.btn-ghost{border-color:#ffffff55;color:var(--tx)}.btn-ghost:hover{border-color:var(--y);color:var(--y);transform:translateY(-3px)}
.btn-dark{background:#0b0b0c;color:var(--y)}.btn-dark:hover{transform:translateY(-3px);box-shadow:0 14px 30px -10px #000}
.btn::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,transparent 30%,#fff6 50%,transparent 70%);transform:translateX(-120%)}
.btn-y:hover::after,.btn-dark:hover::after{transform:translateX(120%);transition:transform .7s var(--ease)}

/* preloader */
.preloader{position:fixed;inset:0;z-index:999;background:#fff;display:grid;place-items:center;transition:transform .9s cubic-bezier(.77,0,.18,1) .1s;clip-path:polygon(0 0,100% 0,100% 100%,0 100%)}
.preloader.done{transform:translateY(-100%)}
.preloader::after{content:"";position:absolute;left:0;right:0;bottom:0;height:14px;background:repeating-linear-gradient(90deg,var(--y) 0 40px,#111 40px 80px)}
.pre-card{width:min(520px,86vw);text-align:center}
.pre-logo{width:100%;height:auto;animation:preIn .9s var(--ease) both}
.pre-road{position:relative;height:6px;background:#e6e6e6;border-radius:6px;margin:1.4rem 0 .8rem;overflow:visible}
.pre-bar{position:absolute;inset:0 auto 0 0;width:0;background:#111;border-radius:6px}
.pre-paver{position:absolute;bottom:4px;left:0;width:84px;transform:translateX(-50%);filter:drop-shadow(0 4px 4px #0003)}
.pre-txt{font:600 .85rem var(--ff-b);color:#444;letter-spacing:.08em;text-transform:uppercase}
.pre-txt b{color:#111}
@keyframes preIn{from{opacity:0;transform:scale(.92)}to{opacity:1;transform:none}}

.progress{position:fixed;top:0;left:0;height:4px;width:100%;background:var(--y);transform-origin:0 50%;transform:scaleX(0);z-index:200}

/* header */
.header{position:fixed;inset:0 0 auto 0;height:var(--hh);z-index:100;display:flex;align-items:center;justify-content:space-between;padding:0 clamp(1rem,3vw,2.5rem);transition:background .3s,backdrop-filter .3s,box-shadow .3s,transform .4s var(--ease)}
.header.solid{background:#0b0b0cd9;backdrop-filter:blur(14px);box-shadow:0 1px 0 var(--line)}
.header.hide{transform:translateY(-100%)}
.brand{display:flex;align-items:center;gap:.7rem}
.brand img{width:64px;height:auto}
.brand-t{display:flex;flex-direction:column;line-height:1}
.wm{font:900 italic 1.45rem/1 var(--ff-h);letter-spacing:-.02em}.wm i{font-style:italic}.wm .y{color:var(--y)}
.brand small{font:700 .52rem/1 var(--ff-h);letter-spacing:.38em;margin-top:.3rem;color:var(--mu)}
.nav{display:flex;align-items:center;gap:clamp(1rem,2.4vw,2.2rem)}
.nav a:not(.btn){white-space:nowrap;font:800 .78rem var(--ff-h);letter-spacing:.1em;text-transform:uppercase;padding:.6rem 0;position:relative;color:var(--tx)}
.nav a:not(.btn)::after{content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;background:var(--y);transform:scaleX(0);transform-origin:left;transition:transform .35s var(--ease)}
.nav a.active,.nav a:not(.btn):hover{color:var(--y)}.nav a.active::after,.nav a:not(.btn):hover::after{transform:scaleX(1)}
.burger{display:none;width:48px;height:48px;background:none;border:0;cursor:pointer;flex-direction:column;justify-content:center;gap:6px;align-items:center}
.burger span{width:26px;height:3px;background:var(--tx);transition:transform .3s,opacity .3s}
.burger[aria-expanded=true] span:nth-child(1){transform:translateY(9px) rotate(45deg)}
.burger[aria-expanded=true] span:nth-child(2){opacity:0}
.burger[aria-expanded=true] span:nth-child(3){transform:translateY(-9px) rotate(-45deg)}

/* hero */
.hero{position:relative;min-height:100svh;display:flex;align-items:center;padding:calc(var(--hh) + 2rem) 0 7rem;overflow:hidden;background:#0d0d0f}
.hero-bg{position:absolute;inset:0 0 0 auto;width:min(78%,1250px);background:url(img/hero-obra.jpg) center/cover no-repeat;transform:scale(1.08);animation:kb 18s ease-in-out infinite alternate;will-change:transform}
@keyframes kb{to{transform:scale(1.2) translate(-1.5%,1%)}}
.hero-shade{position:absolute;inset:0;background:linear-gradient(90deg,#0d0d0f 18%,#0d0d0fcc 42%,#0d0d0f55 75%,#0d0d0f22),linear-gradient(0deg,#0d0d0f 2%,transparent 35%)}
.grain{position:absolute;inset:0;opacity:.14;mix-blend-mode:overlay;pointer-events:none;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='220' height='220'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>")}
.hero-in{position:relative;z-index:2}
.eyebrow{display:inline-flex;align-items:center;gap:.7rem;font:800 .78rem var(--ff-h);letter-spacing:.28em;text-transform:uppercase;color:var(--y);margin-bottom:1.2rem}
.eyebrow span{width:40px;height:3px;background:var(--y)}
.hero h1{font-size:clamp(2.6rem,7.4vw,6rem);font-weight:900;text-transform:uppercase;line-height:.98}
.ln{display:block;overflow:hidden;padding-bottom:.06em}.ln.y{color:var(--y)}
.lead{font-size:clamp(1.05rem,1.6vw,1.3rem);max-width:30rem;margin:1.6rem 0 2rem;color:#e8e8e4}
.hero-cta{display:flex;flex-wrap:wrap;gap:1rem}
[data-hero]{display:inline-block;opacity:0;transform:translateY(110%);transition:transform 1s var(--ease) var(--d,0s),opacity .8s var(--ease) var(--d,0s)}
.lead[data-hero],.hero-cta[data-hero],.eyebrow[data-hero]{display:flex;transform:translateY(24px)}
.lead[data-hero]{display:block}
body.loaded [data-hero]{opacity:1;transform:none}
.scroll-hint{position:absolute;z-index:3;left:50%;bottom:1.6rem;width:26px;height:44px;border:2px solid #fff8;border-radius:20px;transform:translateX(-50%)}
.scroll-hint span{position:absolute;left:50%;top:8px;width:4px;height:8px;border-radius:2px;background:var(--y);transform:translateX(-50%);animation:sh 1.6s infinite}
@keyframes sh{0%{opacity:1;transform:translate(-50%,0)}100%{opacity:0;transform:translate(-50%,16px)}}

/* values */
.values{background:var(--bk2);border-block:1px solid var(--line);position:relative;z-index:3}
.values-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.val{display:flex;gap:1rem;align-items:center;padding:1.6rem 1.2rem;border-right:1px solid var(--line);transition:background .3s}
.val:last-child{border:0}.val:hover{background:#ffffff08}
.val .ic{color:var(--y);transition:transform .4s var(--ease)}.val:hover .ic{transform:scale(1.15) rotate(-6deg)}
.val h3{font-size:.95rem;text-transform:uppercase;color:var(--y);letter-spacing:.06em}
.val p{margin:.2rem 0 0;font-size:.85rem;color:var(--mu);line-height:1.4}

/* dividers (paver drives over road) */
.divider{position:relative;height:210px;background:var(--bk);overflow:hidden;display:flex;align-items:flex-end}
.divider-b{background:var(--bk2)}
.road-line{position:absolute;left:0;right:0;bottom:0;height:34px;background:#18181a;border-top:4px solid var(--y)}
.road-line::after{content:"";position:absolute;left:0;right:0;top:50%;height:4px;background:repeating-linear-gradient(90deg,#fff 0 46px,transparent 46px 96px);opacity:.55;animation:dash 2s linear infinite}
@keyframes dash{to{background-position:96px 0}}
.drive{position:absolute;bottom:26px;left:0;width:min(60vw,430px);will-change:transform;filter:drop-shadow(0 10px 14px #000a)}
.drive.flip{left:auto;right:0}
.asphalt-trail{position:absolute;left:0;bottom:0;height:34px;width:100%;background:repeating-linear-gradient(135deg,#050505 0 6px,#0c0c0d 6px 12px);transform-origin:left;transform:scaleX(0);border-top:4px solid #000}

/* wallpaper */
.wallpaper{position:absolute;z-index:0;top:8%;left:-8%;width:min(78vw,1000px);opacity:.045;pointer-events:none;will-change:transform}
.wallpaper.right{left:auto;right:-10%;top:auto;bottom:0}
.about>.wrap,.process>.wrap,.why>.wrap{position:relative;z-index:2}

/* about */
.about-grid{display:grid;grid-template-columns:1.2fr .9fr;gap:clamp(2rem,6vw,5rem);align-items:center}
.about h2{margin-bottom:1.6rem}
.about-txt p{color:#d0d0ca;max-width:36rem}
.ticks{list-style:none;padding:0;margin:1.6rem 0 0;display:grid;gap:.7rem}
.ticks li{padding-left:2rem;position:relative;font-weight:500}
.ticks li::before{content:"";position:absolute;left:0;top:.45em;width:1.1rem;height:.7rem;background:var(--y);clip-path:polygon(0 0,70% 0,100% 50%,70% 100%,0 100%,30% 50%)}
.about-card{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:0 30px 80px -30px #000}
.stat{background:var(--bk2);padding:2rem 1.4rem;transition:background .3s}
.stat:hover{background:var(--bk3)}
.stat b{display:block;font:900 clamp(2.4rem,4.5vw,3.6rem)/1 var(--ff-h);color:var(--y)}
.stat span{font-size:.85rem;color:var(--mu);text-transform:uppercase;letter-spacing:.08em;font-weight:600}

/* services */
.services{background:var(--bk2)}
.slant-t{clip-path:none}
.services::before{content:"";position:absolute;inset:0;background:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='2'/></filter><rect width='100%' height='100%' filter='url(%23n)' opacity='.5'/></svg>");opacity:.07;pointer-events:none}
.cards{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem}
.card{background:var(--bk3);border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:transform .45s var(--ease),border-color .3s,box-shadow .4s;transform-style:preserve-3d}
.card:hover{border-color:var(--y);box-shadow:0 28px 60px -24px rgba(245,176,28,.35)}
.card-img{aspect-ratio:16/10;overflow:hidden;position:relative;background:#000}
.card-img img{width:100%;height:100%;object-fit:cover;transition:transform .9s var(--ease),filter .5s;filter:saturate(1.05) contrast(1.05)}
.card:hover .card-img img{transform:scale(1.12)}
.card-img::after{content:"";position:absolute;inset:auto 0 0;height:50%;background:linear-gradient(0deg,var(--bk3),transparent)}
.ico-bg{display:grid;place-items:center;background:repeating-linear-gradient(135deg,#0a0a0b 0 8px,#101012 8px 16px)}
.ico-bg .ic{color:var(--y);opacity:.9;transition:transform .6s var(--ease)}.card:hover .ico-bg .ic{transform:scale(1.2) rotate(8deg)}
.card-b{padding:0 1.5rem 1.6rem;margin-top:-1.4rem;position:relative;z-index:2}
.card-b>.ic{color:var(--y);margin-bottom:.6rem}
.card h3{font-size:1.35rem;text-transform:uppercase;margin-bottom:.4rem}
.card p{color:var(--mu);margin:0;font-size:.95rem}

/* process */
.steps{position:relative;list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(5,1fr);gap:1.2rem}
.steps-line{position:absolute;top:2.2rem;left:5%;right:5%;height:4px;background:var(--line);border-radius:4px}
.steps-line span{display:block;height:100%;width:100%;background:var(--y);transform-origin:left;transform:scaleX(0)}
.steps li{position:relative;padding-top:4.2rem}
.steps .n{position:absolute;top:0;left:0;width:4.4rem;height:4.4rem;display:grid;place-items:center;background:var(--bk);border:3px solid var(--y);border-radius:50%;font:900 1.2rem var(--ff-h);color:var(--y)}
.steps .ic.lg{color:var(--y);margin-bottom:.6rem}
.steps h3{font-size:1.05rem;text-transform:uppercase;margin-bottom:.4rem}
.steps p{color:var(--mu);font-size:.92rem}

/* projects gallery */
.projects{background:var(--bk)}
.proj-head{display:flex;justify-content:space-between;align-items:flex-end;gap:1.5rem;flex-wrap:wrap;margin-bottom:2.2rem;position:relative;z-index:2}
.proj-ctrl{display:flex;align-items:center;gap:.7rem}
.proj-count{font:800 .9rem var(--ff-h);letter-spacing:.15em;color:var(--mu);margin-right:.6rem;min-width:3.6em;text-align:right}
.arrow{width:54px;height:54px;border-radius:50%;border:2px solid var(--y);background:transparent;color:var(--y);display:grid;place-items:center;cursor:pointer;transition:background .25s,color .25s,transform .25s,opacity .25s}
.arrow:hover:not(:disabled){background:var(--y);color:#111;transform:scale(1.08)}
.arrow:disabled{opacity:.3;cursor:default}
.proj-track{position:relative;z-index:2;display:flex;gap:1.4rem;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;padding:0 max(1rem,calc((100vw - 1180px)/2)) 1rem;scroll-padding-inline:max(1rem,calc((100vw - 1180px)/2));cursor:grab}
.proj-track::-webkit-scrollbar{display:none}
.proj-track.dragging{scroll-snap-type:none;cursor:grabbing;user-select:none}
.proj{position:relative;flex:none;width:min(78vw,540px);aspect-ratio:4/3;margin:0;border-radius:12px;overflow:hidden;background:#000;border:1px solid var(--line);scroll-snap-align:start}
.proj img{width:100%;height:100%;object-fit:cover;transition:transform .9s var(--ease)}
.proj:hover img{transform:scale(1.08)}
.proj::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,#000d 0%,transparent 55%)}
.proj figcaption{position:absolute;z-index:2;left:1.3rem;right:1.3rem;bottom:1.1rem;display:flex;flex-direction:column}
.proj figcaption b{font:900 1.4rem var(--ff-h);text-transform:uppercase;color:var(--y)}
.proj figcaption span{font-size:.9rem;color:#ddd}
.proj-end{display:flex;flex-direction:column;align-items:flex-start;justify-content:center;gap:.6rem;padding:2rem;background:var(--y);color:#111;border:0}
.proj-end::after{display:none}
.proj-end b{font:900 clamp(1.6rem,3vw,2.4rem)/1 var(--ff-h);text-transform:uppercase}
.proj-end span{font-weight:700;display:flex;align-items:center;gap:.5rem}
.proj-end:hover{background:var(--y2)}
.proj-bar{height:4px;background:var(--line);border-radius:4px;margin-top:1.4rem;overflow:hidden;position:relative;z-index:2}
.proj-bar span{display:block;height:100%;width:12%;background:var(--y);border-radius:4px;transition:width .3s}

/* marquee */
.marquee{background:var(--y);color:#111;overflow:hidden;padding:.35rem 0;transform:rotate(-1deg);margin:-.5rem -2% 0;position:relative;z-index:4;box-shadow:0 6px 24px #0007}
.marq-in{display:flex;align-items:center;gap:1.4rem;width:max-content;animation:marq 30s linear infinite;font:900 italic clamp(.95rem,1.8vw,1.25rem)/1 var(--ff-h);letter-spacing:.12em;white-space:nowrap}
.marq-in i{width:8px;height:8px;background:#111;transform:rotate(45deg);flex:none}
@keyframes marq{to{transform:translateX(-33.333%)}}

/* why */
.why{background:linear-gradient(180deg,var(--bk) 0%,var(--bk2) 100%);padding-top:clamp(6rem,10vw,9rem)}
.why-paver{position:absolute;right:-6%;top:50%;width:min(60vw,780px);opacity:.09;transform:translateY(-50%);pointer-events:none;mix-blend-mode:screen}
.why-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,6vw,5rem);align-items:center}
.why-list{display:grid;gap:1rem}
.why-i{display:flex;gap:1.2rem;align-items:flex-start;padding:1.4rem;background:#18181bcc;border:1px solid var(--line);border-left:4px solid var(--y);border-radius:8px;backdrop-filter:blur(6px);transition:transform .35s var(--ease)}
.why-i:hover{transform:translateX(10px)}
.why-i .ic{color:var(--y)}.why-i h3{font-size:1.1rem;text-transform:uppercase;margin-bottom:.25rem}.why-i p{margin:0;color:var(--mu);font-size:.95rem}

/* cta */
.cta{position:relative;background:var(--y);color:#111;text-align:center;padding:clamp(4rem,8vw,6.5rem) 0;overflow:hidden}
.cta::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(135deg,transparent 0 22px,#00000010 22px 44px);animation:stripes 6s linear infinite}
@keyframes stripes{to{background-position:62px 0}}
.cta-in{position:relative}
.cta h2{font-size:clamp(2rem,5vw,4rem)}.cta p{font-size:1.2rem;font-weight:500;margin:.8rem 0 1.8rem}
.cta-dash{position:absolute;left:0;right:0;bottom:14px;height:5px;background:repeating-linear-gradient(90deg,#111 0 50px,transparent 50px 100px);opacity:.6}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:clamp(2rem,6vw,5rem);align-items:start}
.info{list-style:none;padding:0;margin:2rem 0 0;display:grid;gap:1rem}
.info li{display:flex;gap:.9rem;align-items:center;color:#d6d6d0}.info .ic{color:var(--y)}.info a:hover{color:var(--y)}
.form{display:grid;gap:1rem;background:var(--bk2);padding:clamp(1.4rem,3vw,2.2rem);border:1px solid var(--line);border-radius:14px;border-top:4px solid var(--y)}
.form label{display:grid;gap:.4rem;font:700 .8rem var(--ff-h);letter-spacing:.1em;text-transform:uppercase;color:var(--mu)}
.form input,.form select,.form textarea{font:400 1rem var(--ff-b);color:var(--tx);background:var(--bk);border:1px solid #3a3a3f;border-radius:6px;padding:.85rem 1rem;min-height:48px;transition:border-color .2s,box-shadow .2s;text-transform:none;letter-spacing:0}
.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--y);box-shadow:0 0 0 3px #f5b01c40}
.err{color:#ff8a7a;margin:0;font-size:.9rem}

/* footer */
.footer{background:#070708;border-top:1px solid var(--line);position:relative;padding-top:0}
.foot-road{position:relative;height:110px;overflow:hidden;border-bottom:4px solid var(--y);background:linear-gradient(#070708,#0f0f11)}
.foot-road .drive{width:min(40vw,300px);bottom:0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:2.4rem;padding:3.5rem 0 2.4rem}
.foot-brand img{width:210px;border-radius:10px;margin-bottom:1rem}
.foot-brand p{color:var(--mu);max-width:22rem;font-size:.95rem}
.footer h4{font-size:.85rem;text-transform:uppercase;letter-spacing:.2em;color:var(--y);margin-bottom:1rem}
.footer .foot-grid>div>a:not(.btn){display:block;color:#cfcfc9;padding:.3rem 0;transition:color .2s,transform .2s}
.footer .foot-grid>div>a:not(.btn):hover{color:var(--y);transform:translateX(5px)}
.social{display:flex;gap:.6rem;margin-bottom:1.2rem;flex-wrap:wrap}
.social a{width:46px;height:46px;display:grid;place-items:center;border:1px solid #3a3a3f;border-radius:50%;transition:background .25s,color .25s,transform .25s,border-color .25s}
.social a:hover{background:var(--y);color:#111;border-color:var(--y);transform:translateY(-4px)}
.foot-bot .credit{flex-basis:100%;font-size:.78rem;opacity:.8}
.foot-bot{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;padding:1.4rem 0 2rem;border-top:1px solid var(--line);color:#8e8e88;font-size:.85rem}

/* floats */
.wa-float{position:fixed;right:1.1rem;bottom:1.1rem;z-index:150;width:62px;height:62px;border-radius:50%;background:#25d366;color:#fff;display:grid;place-items:center;box-shadow:0 10px 30px -6px #25d366aa;transition:transform .3s var(--ease)}
.wa-float .ic{width:34px;height:34px}.wa-float:hover{transform:scale(1.1) rotate(-8deg)}
.wa-float::before,.wa-float::after{content:"";position:absolute;inset:0;border-radius:50%;border:2px solid #25d366;animation:ping 2.4s infinite}
.wa-float::after{animation-delay:1.2s}
@keyframes ping{from{transform:scale(1);opacity:.8}to{transform:scale(1.9);opacity:0}}
.to-top{position:fixed;right:1.5rem;bottom:5.6rem;z-index:140;width:46px;height:46px;border-radius:50%;border:1px solid #ffffff44;background:#111d;color:var(--y);display:grid;place-items:center;cursor:pointer;opacity:0;pointer-events:none;transform:translateY(12px);transition:.3s}
.to-top.show{opacity:1;pointer-events:auto;transform:none}.to-top:hover{background:var(--y);color:#111}

/* reveal */
[data-r]{opacity:0;transform:translateY(38px);transition:opacity .9s var(--ease) var(--d,0s),transform .9s var(--ease) var(--d,0s)}
[data-r].in{opacity:1;transform:none}

/* responsive */
@media (max-width:1024px){
  .values-grid{grid-template-columns:1fr 1fr}.val:nth-child(2){border-right:0}.val:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .cards{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr;gap:2rem 1.4rem}.steps-line{display:none}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:1000px){
  .burger{display:flex;z-index:120}
  .nav{position:fixed;inset:0;background:#0b0b0cf5;backdrop-filter:blur(16px);flex-direction:column;justify-content:center;gap:1.4rem;transform:translateX(100%);transition:transform .5s var(--ease)}
  .nav.open{transform:none}
  .nav a:not(.btn){font-size:1.4rem}
}
@media (max-width:860px){
  .about-grid,.why-grid,.contact-grid{grid-template-columns:1fr}
  .hero-bg{width:100%;opacity:.75}.hero-shade{background:linear-gradient(90deg,#0d0d0fee 15%,#0d0d0f77 100%),linear-gradient(0deg,#0d0d0f 2%,transparent 40%)}
  .divider{height:150px}.drive{width:min(70vw,300px)}
}
@media (max-width:560px){
  .brand img{width:48px}.wm{font-size:1.2rem}
  .values-grid,.cards,.steps{grid-template-columns:1fr}
  .val{border-right:0!important;border-bottom:1px solid var(--line)}.val:last-child{border-bottom:0}
  .foot-grid{grid-template-columns:1fr}
  .about-card{grid-template-columns:1fr 1fr}
  .hero-cta .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  [data-r],[data-hero]{opacity:1!important;transform:none!important}
  .asphalt-trail{transform:scaleX(1)}
}

/* ===== Light / dark rhythm ===== */
.section{isolation:isolate}
.section>.wrap,.section>.proj-track{position:relative;z-index:2}
.light{background:#f5f2ea;color:#16161a}
.light h2,.light h3{color:#111}
.light em{color:#111;background:linear-gradient(transparent 60%,var(--y) 60%);padding:0 .12em;margin:0 -.12em;-webkit-box-decoration-break:clone;box-decoration-break:clone}
.light .kicker{color:#8a5a00}.light .kicker::before{background:#8a5a00}
.light p,.light .about-txt p{color:#3b3b40}
.light .ticks li{color:#16161a}
.light .about-card{background:#e0dccf;border-color:#e0dccf;box-shadow:0 30px 70px -30px #0004}
.light .stat{background:#fff}.light .stat:hover{background:#fffbe9}
.light .stat b{color:#111}.light .stat b::after{content:"";display:block;width:34px;height:4px;background:var(--y);margin-top:.5rem}
.light .stat span{color:#55555b}
.light .steps-line{background:#d9d4c5}
.light .steps .n{background:#fff;color:#111}
.light .steps .ic.lg{color:#b27a00}
.light .steps p{color:#4a4a50}
.light .why-i{background:#fff;border-color:#e4dfd0;border-left-color:var(--y);box-shadow:0 14px 34px -22px #0005}
.light .why-i .ic{color:#b27a00}.light .why-i p{color:#4a4a50}
.light .wallpaper,.light .why-paver{opacity:.06}
.why-paver{mix-blend-mode:normal}
.dark{background:var(--bk)}
.services.dark{background:var(--bk2)}

/* background FX: drifting glows + dotted grid + corner hazard stripes */
.section::before,.section::after{content:"";position:absolute;pointer-events:none;z-index:0}
.section::before{width:70vmax;height:70vmax;border-radius:50%;top:-30vmax;right:-25vmax;background:radial-gradient(closest-side,rgba(245,176,28,.20),transparent 70%);animation:glow 16s ease-in-out infinite alternate}
.section::after{inset:0;background-image:radial-gradient(circle at 1px 1px,currentColor 1px,transparent 1.5px);background-size:26px 26px;opacity:.07;-webkit-mask:linear-gradient(135deg,transparent 30%,#000 100%);mask:linear-gradient(135deg,transparent 30%,#000 100%)}
.light::before{background:radial-gradient(closest-side,rgba(245,176,28,.32),transparent 70%)}
.process::before,.about::before{top:auto;bottom:-35vmax;right:auto;left:-25vmax}
.services::before{top:-30vmax;right:auto;left:-25vmax;opacity:1;background:radial-gradient(closest-side,rgba(245,176,28,.16),transparent 70%)}
@keyframes glow{to{transform:translate(-8vmax,6vmax) scale(1.15)}}

/* ===== Responsive refinements ===== */
.wa-float{right:max(1.1rem,env(safe-area-inset-right));bottom:max(1.1rem,env(safe-area-inset-bottom))}
.footer{padding-bottom:env(safe-area-inset-bottom)}
@media (min-width:1600px){
  html{font-size:17px}.wrap{width:min(1360px,100% - 4rem)}
  .proj-track{padding-inline:max(1rem,calc((100vw - 1360px)/2));scroll-padding-inline:max(1rem,calc((100vw - 1360px)/2))}
  .proj{width:620px}
}
@media (max-width:1000px){
  .hero{min-height:100svh;padding-bottom:5rem}
  .hero h1{font-size:clamp(2.4rem,9.5vw,5rem)}
  .proj-track,.proj-track{padding-inline:1rem;scroll-padding-inline:1rem}
}
@media (max-width:860px){
  .hero-bg{width:100%;opacity:1;background-position:35% center;animation-duration:24s}
  .hero-shade{background:linear-gradient(180deg,#0d0d0fb0 0%,#0d0d0f66 35%,#0d0d0fdd 80%,#0d0d0f 100%)}
  .scroll-hint{display:none}
  .section{padding:4rem 0}
  .sec-head{margin-bottom:2rem}
  .why-paver{width:110vw;right:-30%}
  .wallpaper{width:120vw;left:-30%}.wallpaper.right{right:-35%;left:auto}
  .about-card .stat{padding:1.4rem 1rem}
  .proj-head{align-items:flex-start}
  .arrow{width:50px;height:50px}
  .cta h2{font-size:clamp(1.8rem,8vw,2.6rem)}
}
@media (max-width:560px){
  :root{--hh:64px}
  .wa-float{width:54px;height:54px}.wa-float .ic{width:30px;height:30px}
  .to-top{right:1.1rem;bottom:5rem;width:42px;height:42px}
  .eyebrow{font-size:.68rem;letter-spacing:.2em}
  .lead{font-size:1.02rem}
  .values-grid{padding:0}
  .val{padding:1.2rem .4rem}
  .divider{height:120px}.road-line{height:26px}.drive{bottom:20px}
  .about-card{grid-template-columns:1fr 1fr}.stat b{font-size:2.2rem}.stat span{font-size:.72rem}
  .steps{gap:1.6rem}
  .proj{width:84vw}
  .foot-road{height:90px}
  .foot-bot{flex-direction:column;gap:.4rem}
  .form{padding:1.2rem}
  .btn-lg{width:100%}
  .cta .btn-lg{width:auto}
}
@media (max-width:360px){
  .wm{font-size:1.05rem}.brand img{display:none}
  .hero h1{font-size:2.2rem}
}
@media (hover:none){
  .card:hover{transform:none}
  .why-i:hover{transform:none}
}

/* videos */
.videos{background:var(--bk2)}
.vid-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem;align-items:start}
.vid{margin:0;border-radius:12px;overflow:hidden;background:#000;border:1px solid var(--line);transition:transform .4s var(--ease),border-color .3s}
.vid:hover{transform:translateY(-6px);border-color:var(--y)}
.vid video{display:block;width:100%;aspect-ratio:16/9;object-fit:contain;background:#000}
.vid.vid-v{grid-row:span 1}
.vid figcaption{padding:.9rem 1.1rem;font:800 .85rem var(--ff-h);letter-spacing:.1em;text-transform:uppercase;color:var(--y);border-top:3px solid var(--y)}
@media (max-width:900px){.vid-grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.vid-grid{grid-template-columns:1fr}}

/* copy v2 */
.proj-intro{max-width:620px;color:var(--mu);margin:1rem 0 0}
.supply{display:grid;grid-template-columns:1fr 1fr;gap:clamp(1.6rem,4vw,3.4rem);align-items:center;margin-top:3rem;padding:clamp(1.6rem,3.5vw,2.8rem);background:var(--bk3);border:1px solid var(--line);border-left:4px solid var(--y);border-radius:12px}
.supply h3{font-size:clamp(1.4rem,2.6vw,2rem);text-transform:uppercase;margin-bottom:.8rem}
.supply p{color:var(--mu)}
.supply .ticks{margin:0}
.supply .btn{margin-top:.4rem}
.why-lead{margin-top:1.2rem;max-width:520px}
.sectors-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(2rem,6vw,5rem);align-items:start}
.sec-note{margin-top:1.6rem;color:var(--mu)}
.coverage{background:var(--bk2);border:1px solid var(--line);border-top:4px solid var(--y);border-radius:14px;padding:clamp(1.4rem,3vw,2.2rem)}
.coverage .ic{color:var(--y);margin-bottom:.8rem}
.coverage h3{font-size:1.5rem;text-transform:uppercase;margin-bottom:.9rem}
.coverage p{color:var(--mu)}
.contact-lead{color:var(--mu);margin-top:1rem}
.contact .ticks{margin-top:1rem}
@media (max-width:860px){.supply,.sectors-grid{grid-template-columns:1fr}}