/* CO Design & Build
   Layout: a white drawing sheet. Photography carries the page; text sits on a left-aligned
   12-column grid, and project facts are set as a drawing schedule (hairline rows, tabular figures). */
:root{
  --paper:#ffffff;
  --stone:#f3f1ec;
  --ink:#161615;
  --mute:#6d6b65;
  --line:#dcd8cf;
  --verde:#1c2823;
  --brass:#9c8052;
  --on-dark:#f4f2ec;
  --on-dark-mute:#b4bab5;
  --display:"Marcellus","Optima","Palatino Linotype","Book Antiqua",Georgia,serif;
  --text:"Jost","Futura","Century Gothic","Helvetica Neue",Arial,sans-serif;
  --gutter:clamp(20px,4.5vw,64px);
  --section:clamp(64px,9vw,136px);
  color-scheme:light;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--text);font-size:1.0625rem;line-height:1.62;font-weight:400;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img,video{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration-thickness:1px;text-underline-offset:.22em}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--brass);outline-offset:3px}
h1,h2,h3{font-family:var(--display);font-weight:400;line-height:1.1;letter-spacing:-.005em;margin:0;text-wrap:balance}
h1{font-size:clamp(2.3rem,5.2vw,4.5rem)}
h2{font-size:clamp(1.9rem,3.6vw,3.1rem)}
h3{font-size:clamp(1.35rem,2vw,1.7rem);line-height:1.15}
p{margin:0 0 1.1em;max-width:62ch}
p:last-child{margin-bottom:0}
.wrap{max-width:1400px;margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:var(--section)}
.section--stone{background:var(--stone)}
.section--tight{padding-block:calc(var(--section)*.6)}
.lede{font-size:clamp(1.2rem,1.9vw,1.6rem);line-height:1.45;font-weight:300;max-width:34ch}
.lede--wide{max-width:44ch}
.mute{color:var(--mute)}
.small{font-size:.9rem}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* header */
.site-header{position:sticky;top:env(safe-area-inset-top,0px);z-index:40;background:var(--paper);border-bottom:1px solid transparent;transition:border-color .2s}
.site-header.is-stuck{border-bottom-color:var(--line)}
.site-header .wrap{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:24px;min-height:84px}
.brand{justify-self:start}
.header-cta{justify-self:end}
.nav .nav-cta{display:none}
.brand{display:block;flex:none}
.brand img{height:46px;width:auto}
.nav{display:flex;align-items:center;gap:clamp(18px,2.6vw,40px)}
.nav a{text-decoration:none;font-size:.82rem;letter-spacing:.14em;text-transform:uppercase;padding-block:6px;border-bottom:1px solid transparent}
.nav a:hover,.nav a[aria-current="page"]{border-bottom-color:var(--ink)}
.nav-toggle{display:none;background:none;border:0;padding:10px;margin-right:-10px;cursor:pointer;color:var(--ink)}
.nav-toggle span{display:block;width:26px;height:1.5px;background:currentColor;margin:6px 0;transition:transform .2s,opacity .2s}

.btn{display:inline-block;font:inherit;font-size:.98rem;letter-spacing:.01em;text-decoration:none;padding:.85em 1.5em;border:1px solid var(--ink);background:transparent;color:var(--ink);cursor:pointer;transition:background .18s,color .18s}
.btn:hover{background:var(--ink);color:var(--paper)}
.btn--solid{background:var(--ink);color:var(--paper)}
.btn--solid:hover{background:transparent;color:var(--ink)}
.btn--light{border-color:var(--on-dark);color:var(--on-dark)}
.btn--light:hover{background:var(--on-dark);color:var(--verde)}
.btn--light.btn--solid{background:var(--on-dark);color:var(--verde)}
.btn--light.btn--solid:hover{background:transparent;color:var(--on-dark)}
.textlink{font-size:.98rem}

/* hero */
.hero{position:relative;height:clamp(500px,80vh,880px);background:var(--verde);overflow:hidden}
.hero video,.hero .hero-poster{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,18,16,.10) 0%,rgba(15,18,16,.08) 40%,rgba(15,18,16,.72) 100%)}
.hero-copy{position:absolute;left:0;right:0;bottom:0;z-index:2;color:#fff;padding-bottom:clamp(32px,5vw,72px)}
.hero-copy h1{max-width:15ch;animation:rise .9s cubic-bezier(.2,.7,.2,1) both}
.hero-copy p{margin-top:1.1rem;font-size:clamp(1rem,1.4vw,1.2rem);font-weight:300;max-width:46ch;animation:rise .9s .12s cubic-bezier(.2,.7,.2,1) both}
.hero-toggle{position:absolute;right:var(--gutter);bottom:clamp(32px,5vw,72px);z-index:3;background:none;border:1px solid rgba(255,255,255,.6);color:#fff;font:inherit;font-size:.85rem;padding:.5em .9em;cursor:pointer}
.hero-toggle:hover{background:rgba(255,255,255,.14)}
@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}

/* intro */
.intro{display:grid;grid-template-columns:repeat(12,1fr);column-gap:var(--gutter);row-gap:48px;align-items:start}
.intro-text{grid-column:1/8}
.intro-text h2{margin-bottom:1.6rem}
.figures{grid-column:9/13;margin:0;padding:0;list-style:none}
.figures li{display:grid;grid-template-columns:auto 1fr;align-items:baseline;gap:20px;padding-block:18px;border-top:1px solid var(--line)}
.figures li:last-child{border-bottom:1px solid var(--line)}
.figures b{font-family:var(--display);font-weight:400;font-size:clamp(2rem,3.2vw,2.9rem);line-height:1;font-variant-numeric:lining-nums tabular-nums;min-width:4.2ch}
.figures span{color:var(--mute);font-size:.98rem}

.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:clamp(28px,4vw,56px)}

/* project cards */
.card{display:block;text-decoration:none}
.card-media{overflow:hidden;background:var(--stone)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .9s cubic-bezier(.2,.7,.2,1)}
.card:hover .card-media img{transform:scale(1.025)}
.card-meta{display:flex;justify-content:space-between;align-items:baseline;gap:16px;padding-top:16px}
.card-meta h3{font-size:clamp(1.3rem,1.9vw,1.75rem)}
.card-meta span{color:var(--mute);font-size:.95rem;white-space:nowrap;font-variant-numeric:tabular-nums}
.card-sub{color:var(--mute);font-size:.95rem;margin-top:4px}
.feature .card-media{aspect-ratio:16/8}
.trio{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gutter);margin-top:var(--gutter)}
.trio .card-media{aspect-ratio:4/3}

/* projects index: two staggered columns */
.index{display:grid;grid-template-columns:1fr 1fr;column-gap:var(--gutter);row-gap:clamp(40px,5vw,72px)}
.index .card-media{aspect-ratio:4/3}

/* services */
.rows{border-top:1px solid var(--line)}
.row{display:grid;grid-template-columns:repeat(12,1fr);column-gap:var(--gutter);padding-block:clamp(22px,2.6vw,36px);border-bottom:1px solid var(--line);align-items:start}
.row h3{grid-column:1/5}
.row p{grid-column:6/12;margin:0;max-width:56ch}
.row ul{grid-column:6/12;margin:14px 0 0;padding:0;list-style:none;color:var(--mute);font-size:.98rem;columns:2;column-gap:var(--gutter)}
.row li{padding-block:3px;break-inside:avoid}

/* services page */
.services{display:grid;gap:clamp(48px,7vw,104px)}
.service{display:grid;grid-template-columns:1fr 1fr;gap:var(--gutter);align-items:center}
.service-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.service:nth-child(even) .service-media{order:2}
.service-text{padding-inline:clamp(0px,3vw,56px)}
.service-text h2{margin-bottom:1.1rem}
.service-text ul{margin:1.6rem 0 0;padding:0;list-style:none;columns:2;column-gap:var(--gutter);color:var(--mute);font-size:.98rem;border-top:1px solid var(--line);padding-top:1.2rem}
.service-text li{padding-block:3px;break-inside:avoid;position:relative;padding-left:1.1em}
.service-text li::before{content:"";position:absolute;left:0;top:.82em;width:5px;height:5px;border-radius:50%;background:var(--ink)}

/* process */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(28px,4vw,56px) var(--gutter);margin:0;padding:0;list-style:none;counter-reset:step}
.steps li{counter-increment:step;border-top:1px solid var(--ink);padding-top:18px}
.steps li::before{content:counter(step,decimal-leading-zero);display:block;font-size:.9rem;color:var(--mute);font-variant-numeric:tabular-nums;margin-bottom:22px}
.steps h3{margin-bottom:.5rem}
.steps p{color:var(--mute);font-size:1rem;max-width:36ch}

/* cta + footer */
.cta{background:var(--verde);color:var(--on-dark)}
.cta .wrap{display:grid;grid-template-columns:repeat(12,1fr);column-gap:var(--gutter);row-gap:32px;align-items:end}
.cta h2{grid-column:1/8;font-size:clamp(2.2rem,5vw,4.4rem)}
.cta-side{grid-column:8/13}
.cta-side p{color:var(--on-dark-mute);margin-bottom:1.6rem}
.actions{display:flex;flex-wrap:wrap;gap:12px}
.site-footer{padding-block:clamp(48px,6vw,80px) 32px;font-size:.98rem}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:var(--gutter)}
.footer-grid img{height:60px;width:auto}
.footer-grid h4{font-family:var(--text);font-weight:400;font-size:.9rem;color:var(--mute);margin:0 0 12px}
.footer-grid ul{list-style:none;margin:0;padding:0}
.footer-grid li{padding-block:3px}
.footer-grid a{text-decoration:none}
.footer-grid a:hover{text-decoration:underline}
.footer-base{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-top:clamp(40px,5vw,72px);padding-top:20px;border-top:1px solid var(--line);color:var(--mute);font-size:.9rem}

/* page heads */
.page-head{padding-block:clamp(48px,7vw,112px) clamp(32px,4vw,56px)}
.page-head h1{max-width:16ch}
.page-head .lede{margin-top:1.6rem}
.split{display:grid;grid-template-columns:repeat(12,1fr);column-gap:var(--gutter);row-gap:40px;align-items:start}
.split > :first-child{grid-column:1/6}
.split > :last-child{grid-column:7/13}
.split--even > :first-child{grid-column:1/7}
.split--even > :last-child{grid-column:7/13}

/* schedule (project facts) */
.schedule{margin:0;border-top:1px solid var(--ink)}
.schedule div{display:grid;grid-template-columns:8.5rem 1fr;gap:16px;padding-block:11px;border-bottom:1px solid var(--line)}
.schedule dt{color:var(--mute);font-size:.95rem}
.schedule dd{margin:0;font-variant-numeric:tabular-nums}
.project-head{padding-block:clamp(40px,6vw,96px) clamp(32px,4vw,56px)}
.project-head .split{align-items:end}
.project-lead img{width:100%;max-height:86vh;object-fit:cover}
.back{display:inline-block;margin-bottom:28px;font-size:.95rem;color:var(--mute);text-decoration:none}
.back:hover{color:var(--ink);text-decoration:underline}

.gallery{display:grid;grid-template-columns:1fr 1fr;gap:var(--gutter)}
.gallery figure{margin:0;min-width:0}
.gallery figure.wide{grid-column:1/-1}
.gallery figure.wide img{aspect-ratio:3/1.4}
.gallery button{display:block;width:100%;padding:0;border:0;background:var(--stone);cursor:zoom-in}
.gallery img{width:100%;aspect-ratio:3/2;object-fit:cover}
.gallery figcaption{font-size:.9rem;color:var(--mute);padding-top:8px}
.next{display:flex;justify-content:space-between;align-items:baseline;gap:24px;flex-wrap:wrap;text-decoration:none;padding-block:clamp(28px,4vw,48px);border-top:1px solid var(--ink);border-bottom:1px solid var(--ink)}
.next span{color:var(--mute)}
.next strong{font-family:var(--display);font-weight:400;font-size:clamp(1.8rem,4vw,3.4rem);line-height:1.05}
.next:hover strong{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:.14em}

/* lightbox */
.lightbox{position:fixed;inset:0;z-index:100;background:rgba(18,20,19,.96);display:flex;align-items:center;justify-content:center;padding:56px 16px 64px}
.lightbox img{max-width:100%;max-height:100%;object-fit:contain}
.lightbox p{position:absolute;left:0;right:0;bottom:18px;margin:0;max-width:none;text-align:center;color:var(--on-dark-mute);font-size:.9rem}
.lightbox button{position:absolute;background:none;border:0;color:#fff;font:inherit;font-size:.95rem;padding:14px 18px;cursor:pointer}
.lightbox .lb-close{top:6px;right:6px}
.lightbox .lb-prev{left:6px;top:50%;transform:translateY(-50%)}
.lightbox .lb-next{right:6px;top:50%;transform:translateY(-50%)}
.lightbox button:hover{text-decoration:underline}

/* about */
.wide-img img{width:100%;aspect-ratio:16/7;object-fit:cover}
.principles{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gutter)}
.principles > div{border-top:1px solid var(--ink);padding-top:18px}
.principles h3{margin-bottom:.6rem}
.principles p{color:var(--mute);font-size:1rem}

/* contact */
.contact-list{margin:0;border-top:1px solid var(--ink)}
.contact-list div{display:grid;grid-template-columns:7.5rem 1fr;gap:16px;padding-block:14px;border-bottom:1px solid var(--line)}
.contact-list dt{color:var(--mute);font-size:.95rem}
.contact-list dd{margin:0}
.form{display:grid;grid-template-columns:1fr 1fr;gap:22px var(--gutter)}
.field{display:flex;flex-direction:column;gap:6px;min-width:0}
.field--full{grid-column:1/-1}
.field label{font-size:.9rem;color:var(--mute)}
.field input,.field select,.field textarea{font:inherit;color:var(--ink);background:transparent;border:0;border-bottom:1px solid var(--ink);border-radius:0;padding:10px 0;width:100%}
.field textarea{min-height:130px;resize:vertical}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--ink) 50%),linear-gradient(135deg,var(--ink) 50%,transparent 50%);background-position:calc(100% - 11px) 55%,calc(100% - 6px) 55%;background-size:5px 5px;background-repeat:no-repeat;padding-right:28px}
.form-note{grid-column:1/-1;font-size:.95rem;margin:0}
.form-note[data-state="ok"]{color:#1f5a3c}
.form-note[data-state="error"]{color:#8a2b1f}
.hp{position:absolute;left:-9999px}

/* whatsapp */
.wa{position:fixed;right:18px;bottom:calc(18px + env(safe-area-inset-bottom,0px));z-index:30;display:flex;align-items:center;gap:8px;background:var(--verde);color:var(--on-dark);text-decoration:none;font-size:.9rem;padding:.7em 1.05em .7em .9em;box-shadow:0 6px 22px rgba(20,28,24,.22)}
.wa svg{width:18px;height:18px;flex:none}
.wa:hover{background:var(--ink)}

@media (max-width:1000px){
  .intro-text,.figures{grid-column:1/-1}
  .cta h2,.cta-side{grid-column:1/-1}
  .row h3{grid-column:1/-1;margin-bottom:10px}
  .row p,.row ul{grid-column:1/-1}
  .split > :first-child,.split > :last-child,.split--even > :first-child,.split--even > :last-child{grid-column:1/-1}
  .steps{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .principles{grid-template-columns:1fr}
}
@media (max-width:820px){
  .nav-toggle{display:block;justify-self:end}
  .site-header .nav{display:none}
  .site-header .nav.is-open{display:flex}
  .site-header .wrap{grid-template-columns:1fr auto}
  .header-cta{display:none}
  .nav .nav-cta{display:block}
  .service{grid-template-columns:1fr}
  .service:nth-child(even) .service-media{order:0}
  .service-text{padding-inline:0}
  .gallery figure.wide img{aspect-ratio:3/2}
  .nav{position:fixed;inset:0;top:calc(85px + env(safe-area-inset-top,0px));background:var(--paper);flex-direction:column;align-items:flex-start;gap:0;padding:12px var(--gutter) 40px;overflow:auto}
  .nav a{font-family:var(--display);font-size:2rem;padding-block:14px;width:100%;border-bottom:1px solid var(--line)}
  .site-header .wrap{min-height:72px}
  .nav{top:calc(73px + env(safe-area-inset-top,0px))}
  .brand img{height:40px}
  .trio{grid-template-columns:1fr;gap:40px}
  .feature .card-media{aspect-ratio:4/3}
  .index{grid-template-columns:1fr}
  .gallery{grid-template-columns:1fr}
  .row ul{columns:1}
  .form{grid-template-columns:1fr}
  .wide-img img{aspect-ratio:4/3}
  .hero-toggle{display:none}
}
@media (max-width:1100px) and (min-width:821px){.nav{gap:18px}.header-cta{padding-inline:1em}}
@media (max-width:560px){
  .steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .card-meta{flex-direction:column;gap:2px}
  .schedule div{grid-template-columns:6.5rem 1fr}
  .wa span{display:none}
  .wa{padding:.8em}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
}
.figures b i{font-style:normal;margin-right:.04em}