@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root{
  --bg:#f5f6f3;
  --ink:#121417;
  --muted:#6d7277;
  --line:#dfe2df;
  --green:#4f873d;
  --green2:#315e31;
  --dark:#0b0d10;
  --white:#fff;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"DM Sans",sans-serif}
a{text-decoration:none;color:inherit}
.container{width:min(1160px,calc(100% - 40px));margin:auto}

.site-header{position:absolute;top:0;left:0;right:0;z-index:10}
.nav{height:96px;display:flex;align-items:center;justify-content:space-between}
.brand img{width:205px;height:auto;display:block}
.nav-links{display:flex;gap:34px;align-items:center;font-size:14px;font-weight:600}
.nav-links a{opacity:.85}
.nav-links a:hover{opacity:1}
.nav-cta{background:#121417;color:#fff;padding:13px 18px;border-radius:999px}
.nav-cta span{color:#71a85b;margin-left:6px}
.menu-btn{display:none;border:0;background:none;font-size:26px;cursor:pointer}

.hero{min-height:760px;position:relative;overflow:hidden;background:#f5f6f3}
.hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(18,20,23,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(18,20,23,.045) 1px,transparent 1px);background-size:64px 64px;mask-image:linear-gradient(to right,black,transparent 85%)}
.hero-inner{position:relative;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:40px;align-items:center;min-height:760px;padding-top:80px}
.eyebrow{font-size:12px;letter-spacing:.17em;font-weight:700;color:#647068;display:flex;align-items:center;gap:9px}
.eyebrow span{width:8px;height:8px;border-radius:50%;background:var(--green);display:inline-block}
.hero h1{font-family:"Space Grotesk";font-size:clamp(48px,6vw,82px);line-height:.98;letter-spacing:-.055em;margin:24px 0 24px;max-width:760px}
.hero h1 em,h2 em{font-style:normal;color:var(--green)}
.lead{font-size:18px;line-height:1.65;color:#60666a;max-width:650px}
.hero-actions{display:flex;gap:12px;margin-top:32px;flex-wrap:wrap}
.btn{border:0;border-radius:8px;padding:15px 21px;font:600 14px "DM Sans";cursor:pointer;display:inline-flex;align-items:center;gap:12px}
.btn-primary{background:#121417;color:#fff}
.btn-primary span{color:#71a85b;font-size:18px}
.btn-ghost{border:1px solid #cdd1ce;background:rgba(255,255,255,.45)}
.hero-note{display:flex;align-items:center;gap:14px;margin-top:42px;color:#777d80;font-size:12px}
.signal{display:flex;gap:4px;align-items:flex-end}
.signal i{width:3px;background:var(--green);display:block;border-radius:3px}
.signal i:nth-child(1){height:9px}
.signal i:nth-child(2){height:16px}
.signal i:nth-child(3){height:24px}

.hero-visual{position:relative;height:520px;display:flex;align-items:center;justify-content:center}
.orb{position:absolute;border-radius:50%;filter:blur(1px)}
.orb-a{width:400px;height:400px;background:radial-gradient(circle at 35% 30%,rgba(103,160,80,.26),rgba(103,160,80,0) 65%);top:40px}
.orb-b{width:260px;height:260px;border:1px solid rgba(78,135,61,.25);bottom:40px;right:30px}
.building-card{position:relative;width:430px;height:310px;border:1px solid rgba(70,85,76,.25);background:rgba(255,255,255,.72);backdrop-filter:blur(18px);box-shadow:0 30px 70px rgba(30,40,30,.12);border-radius:18px;padding:24px;transform:rotate(-3deg)}
.bc-top,.bc-bottom{display:flex;justify-content:space-between;font-size:9px;letter-spacing:.16em;color:#778078}
.bc-top b{color:var(--green)}
.bc-diagram{position:relative;height:230px}
.bc-lines{position:absolute;inset:0;width:100%;height:100%;z-index:0}
.bc-lines line{stroke:#9da79e;stroke-width:1.2}
.node{position:absolute;z-index:1;border:1px solid #c7cdc8;background:#fff;border-radius:7px;padding:7px 8px;font-size:8px;font-weight:700;letter-spacing:.06em;white-space:normal;max-width:110px;text-align:center;line-height:1.25}
.main-node{left:50%;top:50%;transform:translate(-50%,-50%);width:64px;height:64px;border-radius:50%;display:grid;place-items:center;background:#121417;color:#fff;border-color:#121417;font-size:14px;letter-spacing:.04em;padding:0;z-index:2}
.n1{left:4%;top:12%}
.n2{right:4%;top:12%}
.n3{left:4%;top:50%;transform:translateY(-50%)}
.n4{right:4%;top:50%;transform:translateY(-50%)}
.n5{left:4%;bottom:12%}
.n6{right:4%;bottom:12%}

.marquee{background:var(--dark);color:#dfe4e0;overflow:hidden;padding:18px 0}
.marquee-track{display:flex;align-items:center;justify-content:center;gap:25px;min-width:max-content;font-size:11px;letter-spacing:.18em;font-weight:700;animation:marquee 28s linear infinite}
.marquee b{color:#65a051;font-size:10px}
@keyframes marquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}

.section{padding:120px 0}
.section-head{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:end;margin-bottom:58px}
.section-head h2,.split h2,.contact h2{font-family:"Space Grotesk";font-size:clamp(42px,5vw,64px);line-height:1;letter-spacing:-.05em;margin:20px 0 0}
.section-head>p{font-size:16px;line-height:1.7;color:#71767a;max-width:480px;margin:0 0 5px}
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
.service-card{padding:34px 32px;min-height:180px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);transition:.25s;background:#f5f6f3;display:flex;flex-direction:column;justify-content:space-between}
.service-card:hover{background:#fff;transform:translateY(-3px)}
.service-card.featured{background:#e8eee5}
.icon{font:700 11px "Space Grotesk";color:var(--green);letter-spacing:.1em;margin-bottom:28px}
.service-card h3{font:600 22px "Space Grotesk";margin:0;line-height:1.25}
.service-card p{color:#747a7e;line-height:1.55;font-size:14px;margin:0}
.service-card ul{list-style:none;padding:0;margin:22px 0 0;color:#59615b;font-size:12px;line-height:2}
.service-card li:before{content:"— ";color:var(--green)}

.dark-section{background:var(--dark);color:#fff}
.split{display:grid;grid-template-columns:.85fr 1.15fr;gap:100px}
.dark-section .eyebrow{color:#8b958d}
.eyebrow em.why-us{font-style:normal;color:var(--green);font-weight:700}
.benefit{display:grid;grid-template-columns:42px 1fr;gap:18px;padding:0 0 28px;margin-bottom:28px;border-bottom:1px solid #262b2e}
.benefit:last-child{margin-bottom:0;border-bottom:0;padding-bottom:0}
.benefit>strong{color:#5f9850;font:600 12px "Space Grotesk"}
.benefit h3{font:600 19px "Space Grotesk";margin:0 0 8px}
.benefit p{color:#92989a;line-height:1.6;font-size:14px;margin:0}

.centered{display:block;text-align:center;margin-bottom:62px}
.centered .eyebrow{justify-content:center}
.steps{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line)}
.step{padding:30px 22px 0;border-right:1px solid var(--line);min-height:180px}
.step:first-child{border-left:1px solid var(--line)}
.step span{font:700 11px "Space Grotesk";color:var(--green)}
.step h3{font:600 21px "Space Grotesk";margin:28px 0 9px}
.step p{font-size:13px;color:#747a7e;line-height:1.55;margin:0}

.quote-section{padding-top:0}
.quote-box{background:#e8eee5;padding:75px 90px;text-align:center;position:relative;overflow:hidden}
.quote-mark{font:700 90px Georgia;color:#6d9c5e;line-height:.6}
.quote-box p{font:500 clamp(26px,3.3vw,42px) "Space Grotesk";letter-spacing:-.035em;max-width:800px;margin:28px auto 22px}
.quote-box span{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:#6d746d;font-weight:700}

.contact{background:#e8eee5}
.contact-grid{display:grid;grid-template-columns:1fr .9fr;gap:100px}
.contact-lead{max-width:520px;color:#69716b;line-height:1.7;margin-top:28px}
.contact-details{margin-top:40px;display:flex;flex-direction:column;gap:18px}
.contact-details span{display:block;font-size:10px;letter-spacing:.15em;color:#6b746c;margin-bottom:6px;font-weight:700}
.contact-details a,.contact-details strong{font:600 17px "Space Grotesk";color:var(--ink)}
.contact-details a:hover{color:var(--green)}
.contact-form{background:#fff;padding:36px;border-radius:14px;box-shadow:0 20px 50px rgba(20,30,20,.07)}
.contact-form label{display:block;font-size:11px;font-weight:700;letter-spacing:.04em;margin-bottom:17px}
.contact-form label span{font-weight:400;color:#969b97}
.contact-form input,.contact-form textarea{display:block;width:100%;border:0;border-bottom:1px solid #d9ddd9;padding:12px 0 13px;font:15px "DM Sans";background:transparent;outline:none}
.contact-form input:focus,.contact-form textarea:focus{border-color:var(--green)}
.contact-form textarea{resize:vertical}
.contact-form .btn{margin-top:8px}
.contact-form small{display:block;color:#929792;font-size:10px;line-height:1.5;margin-top:16px}

footer{background:var(--dark);color:#8c9294;padding:28px 0}
.footer-inner{display:flex;align-items:center;justify-content:space-between;font-size:11px;gap:16px;flex-wrap:wrap}
.footer-inner img{width:160px;filter:grayscale(1) brightness(2)}
.footer-inner a:hover{color:#fff}
.footer-meta{text-align:right;line-height:1.7}


/* Realizacje */
.projects-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.project-card{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:.25s}
.project-card:hover{transform:translateY(-3px);box-shadow:0 20px 50px rgba(20,30,20,.08)}
.project-photo{aspect-ratio:16/10;background:linear-gradient(145deg,#e8eee5,#dfe6dc);display:flex;align-items:center;justify-content:center;border-bottom:1px solid var(--line);overflow:hidden}
.project-photo img{width:100%;height:100%;object-fit:cover;display:block}
.project-photo span{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:#8a928a;font-weight:600}
.project-body{padding:22px 22px 24px}
.project-tag{display:inline-block;font-size:10px;font-weight:700;letter-spacing:.12em;color:var(--green);margin-bottom:10px}
.project-body h3{font:600 18px "Space Grotesk";margin:0 0 8px;letter-spacing:-.02em}
.project-body p{font-size:13px;line-height:1.55;color:#747a7e;margin:0}

/* Referencje */
.referencje{background:#e8eee5}
.refs-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.ref-card{margin:0;background:#fff;border-radius:14px;padding:28px 26px;border:1px solid var(--line);display:flex;flex-direction:column;justify-content:space-between;min-height:200px}
.ref-card p{font:500 16px "Space Grotesk";line-height:1.45;letter-spacing:-.02em;color:var(--ink);margin:0 0 22px}
.ref-card footer{display:flex;flex-direction:column;gap:3px}
.ref-card strong{font-size:13px;font-weight:700}
.ref-card span{font-size:12px;color:#8a928a}

@media(max-width:900px){
  .projects-grid,.refs-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:600px){
  .projects-grid,.refs-grid{grid-template-columns:1fr}
}

@media(max-width:900px){
  .nav-links{display:none}
  .menu-btn{display:block}
  .nav-links.open{display:flex;position:absolute;top:82px;left:20px;right:20px;background:#fff;padding:20px;flex-direction:column;align-items:stretch;border-radius:12px;box-shadow:0 15px 35px #0001;z-index:20}
  .hero-inner,.section-head,.split,.contact-grid{grid-template-columns:1fr;gap:45px}
  .hero{min-height:auto}
  .hero-inner{padding:150px 0 70px}
  .hero-visual{height:390px}
  .service-grid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  .step{border-bottom:1px solid var(--line)}
  .contact-grid{gap:55px}
  .section{padding:85px 0}
  .footer-meta{text-align:left}
}
@media(max-width:600px){
  .container{width:min(100% - 28px,1160px)}
  .brand img{width:165px}
  .hero h1{font-size:49px}
  .lead{font-size:16px}
  .building-card{width:340px;height:270px}
  .hero-visual{height:330px}
  .service-grid,.steps{grid-template-columns:1fr}
  .service-card{min-height:auto}
  .icon{margin-bottom:40px}
  .quote-box{padding:50px 24px}
  .contact-form{padding:25px}
  .footer-inner img{width:130px}
}