:root{--fog:#E6ECEF;--white:#fff;--petrol:#123B4F;--petrol-d:#0C2B3A;--ink:#17252D;--mute:#53636D;--larch:#D2A25A;--line:#C5D0D6;--font:"Avenir Next","Segoe UI Variable Text","Segoe UI",system-ui,-apple-system,Roboto,"Helvetica Neue",Arial,sans-serif;--w:1320px}
*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--fog);color:var(--ink);font:400 1.0625rem/1.65 var(--font)}
body.lock{overflow:hidden}
svg{display:block;max-width:100%}
a{color:inherit}
p{margin:0 0 1.1em}
h1,h2,h3{margin:0;font-weight:800;letter-spacing:-.03em;line-height:1.08;color:var(--petrol)}
h1{font-size:clamp(2.6rem,5.6vw,5rem);letter-spacing:-.04em;line-height:1.02}
h2{font-size:clamp(1.9rem,3.5vw,3.1rem)}
h3{font-size:1.35rem;letter-spacing:-.02em}
.wrap{width:min(var(--w),100% - 3rem);margin-inline:auto}
section[id]{scroll-margin-top:72px}
.sec{padding:clamp(4rem,8vw,7.5rem) 0}
.skip{position:absolute;left:-999px}
.skip:focus{left:1rem;top:1rem;z-index:99;background:#fff;padding:.6rem 1rem}
:focus-visible{outline:3px solid var(--larch);outline-offset:3px}

.btn{display:inline-block;padding:1rem 1.9rem;border-radius:99px;background:var(--petrol);color:#fff;border:2px solid var(--petrol);font:700 .95rem var(--font);text-decoration:none;cursor:pointer;transition:background .25s,color .25s,transform .25s}
.btn:hover{background:var(--larch);border-color:var(--larch);color:var(--ink);transform:translateY(-2px)}
.btn.ghost{background:transparent;color:var(--petrol)}
.btn.ghost:hover{background:var(--petrol);border-color:var(--petrol);color:#fff}
.btn.sm{padding:.65rem 1.25rem;font-size:.875rem}
.btn.light{background:var(--fog);border-color:var(--fog);color:var(--petrol)}
.btn.light:hover{background:var(--larch);border-color:var(--larch);color:var(--ink)}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(230,236,239,.97);transition:box-shadow .3s}
.site-header.stuck{box-shadow:0 1px 0 var(--line)}
.bar{display:flex;align-items:center;gap:2rem;height:72px}
.brand{display:flex;align-items:center;gap:.7rem;margin-right:auto;text-decoration:none;font-weight:800;font-size:1.3rem;letter-spacing:-.02em;color:var(--petrol)}
.brand::before{content:"";width:16px;height:16px;margin-right:.35rem;background:var(--larch);box-shadow:6px 6px 0 var(--petrol)}
.brand small{font-size:.7rem;font-weight:600;color:var(--mute);margin-left:-.3rem}
.nav{display:flex;gap:2rem}
.nav a{padding:.3rem 0;text-decoration:none;font-weight:600;font-size:.95rem;color:var(--petrol);background:linear-gradient(var(--larch),var(--larch)) 0 100%/0 3px no-repeat;transition:background-size .3s}
.nav a:hover{background-size:100% 3px}
.burger{display:none;width:44px;height:44px;border:0;background:none;cursor:pointer;position:relative}
.burger span{position:absolute;left:10px;right:10px;height:2px;background:var(--petrol);transition:transform .3s}
.burger span:first-child{top:17px}
.burger span:last-child{top:25px}
.burger[aria-expanded=true] span:first-child{transform:translateY(4px) rotate(45deg)}
.burger[aria-expanded=true] span:last-child{transform:translateY(-4px) rotate(-45deg)}

/* Hero */
.hero{padding:clamp(2.5rem,6vw,5.5rem) 0 clamp(3.5rem,7vw,6.5rem)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(2rem,5vw,5rem);align-items:center}
.lead{font-size:1.2rem;color:var(--mute);max-width:34em;margin:1.6rem 0 2.2rem}
.cta{display:flex;flex-wrap:wrap;gap:1rem}
.quick{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem 2rem;list-style:none;padding:0;margin:3.2rem 0 0}
.quick li{border-left:3px solid var(--larch);padding-left:1rem;font-size:.92rem;line-height:1.45;color:var(--mute)}
.quick b{display:block;font-size:1.05rem;color:var(--ink)}
.art{position:relative;margin:0;background:var(--petrol)}
.art svg{width:100%;height:auto}
.art figcaption{position:absolute;left:-2rem;bottom:2rem;max-width:17rem;padding:1.2rem 1.5rem;background:var(--white);font-size:.92rem;line-height:1.5;box-shadow:0 14px 30px rgba(12,43,58,.18)}
.art figcaption b{display:block;color:var(--petrol)}
.art a{color:var(--petrol);font-weight:600}
.moon{fill:var(--larch)}.v1{fill:#F2F5F6}.v2{fill:var(--larch)}.v3{fill:#7D9AA9}
.roof,.ground{fill:var(--petrol-d)}.win,.door{fill:var(--petrol)}

/* About */
.about-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:clamp(2rem,6vw,6rem);align-items:start}
.about h2{margin-bottom:2rem;max-width:16em}
.big{font-size:1.4rem;line-height:1.5;font-weight:500}
.about p{max-width:42em}
.side{display:grid;gap:1.25rem}
.side div{background:var(--white);padding:1.6rem 1.75rem;border-top:4px solid var(--petrol)}
.side div:nth-child(2){border-color:var(--larch)}
.side h3{margin-bottom:.5rem;font-size:1.15rem}
.side p{margin:0;color:var(--mute);font-size:.98rem}
.side a{font-weight:600;color:var(--petrol)}

/* Services */
.services{background:var(--white)}
.sv-head{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:end;margin-bottom:3rem}
.sv-head p{margin:0;color:var(--mute)}
.tabs{display:grid;grid-template-columns:.8fr 1.2fr;background:var(--fog)}
.tablist{display:grid;align-content:start}
.tablist button{padding:1.35rem 1.75rem;border:0;border-left:5px solid transparent;background:transparent;color:var(--mute);font:700 1.05rem var(--font);text-align:left;cursor:pointer;transition:background .25s,color .25s,border-color .25s}
.tablist button:hover{background:rgba(255,255,255,.6);color:var(--petrol)}
.tablist button[aria-selected=true]{background:var(--petrol);color:#fff;border-color:var(--larch)}
.panel{padding:clamp(2rem,4vw,3.75rem);animation:fade .4s ease}
.panel h3{font-size:clamp(1.6rem,2.6vw,2.2rem);margin-bottom:1rem}
.panel p{max-width:36em;color:#2f3f48}
.panel ul{list-style:none;margin:1.75rem 0 2rem;padding:0;display:grid;gap:.7rem}
.panel li{position:relative;padding-left:1.6rem;font-weight:600}
.panel li::before{content:"";position:absolute;left:0;top:.6em;width:.65rem;height:.65rem;background:var(--larch)}
@keyframes fade{from{opacity:0;transform:translateY(10px)}}

/* Why */
.why{background:var(--petrol);color:#DCE6EA}
.why h2,.ben h3{color:#fff}
.why-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(2rem,7vw,7rem);align-items:start}
.why-intro{position:sticky;top:110px}
.why-intro p{margin:1.5rem 0 2rem;font-size:1.15rem}
.ben{list-style:none;margin:0;padding:0}
.ben li{position:relative;padding:0 0 2.2rem 2.4rem;margin-bottom:2.2rem;border-bottom:1px solid rgba(255,255,255,.16)}
.ben li:last-child{border:0;margin:0;padding-bottom:0}
.ben li::before{content:"";position:absolute;left:0;top:.45rem;width:.9rem;height:.9rem;background:var(--larch);transition:transform .3s}
.ben li:hover::before{transform:rotate(45deg)}
.ben h3{font-size:1.5rem;margin-bottom:.5rem}
.ben p{margin:0}

/* Contact */
.c-head{max-width:40rem;margin-bottom:3rem}
.c-head p{margin:1.2rem 0 0;color:var(--mute)}
.contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;background:var(--white)}
.info{background:var(--larch);padding:clamp(2rem,4vw,3.5rem)}
.info h3{color:var(--ink);font-size:1.7rem}
.info dl{margin:1rem 0 0}
.info dt{margin-top:1.4rem;font-weight:700;font-size:.9rem;color:var(--petrol-d)}
.info dd{margin:.2rem 0 0;font-size:1.15rem;font-weight:500}
.info a{text-underline-offset:4px;text-decoration-thickness:2px}
form{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem;padding:clamp(2rem,4vw,3.5rem)}
.field{display:flex;flex-direction:column;gap:.4rem}
.field.full{grid-column:1/-1}
label{font-size:.88rem;font-weight:700}
input,select,textarea{width:100%;padding:.85rem 1rem;border:1px solid var(--line);border-radius:0;background:var(--fog);color:var(--ink);font:inherit;transition:border-color .2s,box-shadow .2s,background .2s}
input:focus,select:focus,textarea:focus{outline:none;background:#fff;border-color:var(--petrol);box-shadow:0 0 0 3px rgba(210,162,90,.45)}
[aria-invalid=true]{border-color:#B3261E}
.err{min-height:1.2em;color:#B3261E;font-size:.84rem}
.check{display:flex;gap:.7rem;align-items:flex-start}
.check input{width:auto;margin-top:.4rem}
.check label{font-weight:400;color:var(--mute)}
form .btn{justify-self:start}
.status{grid-column:1/-1;margin:0;font-weight:700}
.status.ok{color:#2F6B3F}
.status.bad{color:#B3261E}

/* Footer */
.foot{background:var(--petrol-d);color:#9FB3BD;padding:4rem 0 2rem;font-size:.95rem}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:3rem;padding-bottom:2.5rem;border-bottom:1px solid rgba(255,255,255,.14)}
.foot .brand{color:#fff;margin-bottom:1rem}
.foot .brand small{color:#9FB3BD}
.foot h3{color:#fff;font-size:1rem;margin-bottom:.8rem}
.foot p{max-width:26em}
.foot a{text-decoration:none}
.foot a:hover{color:var(--larch)}
.legal{padding-top:1.5rem;font-size:.85rem}

/* Motion */
.js .reveal{opacity:0;transform:translateY(16px);transition:opacity .7s ease,transform .7s ease}
.js .reveal.in{opacity:1;transform:none}

@media(max-width:1000px){
  .hero-grid,.about-grid,.sv-head,.tabs,.why-grid,.contact-grid,.foot-grid{grid-template-columns:1fr}
  .art{max-width:620px}
  .art figcaption{left:1rem}
  .why-intro{position:static}
  .tablist{grid-template-columns:1fr 1fr}
  .tablist button{padding:1rem 1.25rem;border-left:0;border-bottom:4px solid transparent}
  .foot-grid{gap:2rem}
}
@media(max-width:820px){
  .burger{display:block}
  .bar>.btn{display:none}
  .nav{position:fixed;inset:72px 0 auto;flex-direction:column;gap:0;padding:0 1.5rem 1.5rem;background:var(--fog);box-shadow:0 20px 30px rgba(12,43,58,.15);transform:translateY(-130%);visibility:hidden;transition:transform .35s,visibility .35s}
  .nav.open{transform:none;visibility:visible}
  .nav a{padding:1rem 0;border-bottom:1px solid var(--line);font-size:1.1rem;background:none}
}
@media(max-width:600px){
  form{grid-template-columns:1fr}
  .tablist{grid-template-columns:1fr}
  .quick{grid-template-columns:1fr}
  .lead{font-size:1.1rem}
  .btn{width:100%;text-align:center}
  .btn.sm{width:auto}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important;animation:none!important}
}