:root{--ink:#111;--paper:#fff;--muted:#6b6b6b;--line:#e6e4df;--warm:#f4f1ec;--accent:#c8502a;--r:14px;--max:1240px;--pad:clamp(18px,4vw,48px)}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:72px;-webkit-text-size-adjust:100%}
body{font-family:Inter,"Segoe UI",system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.55;font-size:17px}
img{display:block;max-width:100%;height:auto}
a{color:inherit}
h1,h2,h3{line-height:1.08;letter-spacing:-.02em;font-weight:800}
h2{font-size:clamp(30px,4.5vw,52px)}
h3{font-size:20px;letter-spacing:-.01em}
.lead{color:var(--muted);font-size:clamp(17px,1.6vw,20px);max-width:640px;margin-top:12px}

/* header */
.top{position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:24px;padding:14px var(--pad);background:rgba(255,255,255,.92);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.logo{text-decoration:none;display:flex;flex-direction:column;align-items:center;gap:4px;color:var(--ink);line-height:1}
.logo__mark{height:22px;width:auto;fill:currentColor;display:block}
.logo span{font-weight:700;font-size:9.5px;letter-spacing:.04em;white-space:nowrap}

.nav{display:flex;gap:28px;margin-left:auto;font-size:15px;font-weight:600}
.nav a{text-decoration:none;opacity:.8}
.nav a:hover{opacity:1;color:var(--accent)}
.nav .lang{border:1px solid var(--line);border-radius:999px;padding:2px 10px;font-size:13px}
.burger{display:none;background:none;border:0;width:40px;height:40px;cursor:pointer;flex-direction:column;justify-content:center;gap:6px;align-items:center}
.burger span{display:block;width:22px;height:2px;background:var(--ink);transition:.2s}
.top.open .burger span:first-child{transform:translateY(4px) rotate(45deg)}
.top.open .burger span:last-child{transform:translateY(-4px) rotate(-45deg)}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:10px;background:var(--accent);color:#fff;text-decoration:none;font-weight:700;padding:15px 24px;border-radius:999px;font-size:16px;border:2px solid var(--accent);transition:.15s;white-space:nowrap}
.btn:hover{background:#a8401f;border-color:#a8401f}
.btn svg{width:18px;height:18px;fill:currentColor}
.btn--ghost{background:transparent;color:inherit;border-color:currentColor}
.btn--ghost:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn--sm{padding:9px 18px;font-size:14px}
.row{display:flex;flex-wrap:wrap;gap:12px}

/* hero */
.hero{position:relative;min-height:min(88vh,820px);display:flex;align-items:flex-end;color:#fff;overflow:hidden}
.hero__img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.05) 30%,rgba(0,0,0,.72))}
.hero__in{position:relative;z-index:1;padding:var(--pad);padding-bottom:clamp(40px,8vh,90px);max-width:var(--max);width:100%;margin:0 auto}
.hero h1{font-size:clamp(38px,7vw,88px);max-width:14ch}
.hero p{font-size:clamp(17px,2vw,22px);max-width:560px;margin:18px 0 28px;opacity:.92}
.hero .btn--ghost{color:#fff}
.hero .btn--ghost:hover{background:#fff;color:var(--ink);border-color:#fff}

/* creds */
.creds{list-style:none;display:flex;flex-wrap:wrap;justify-content:center;gap:10px 34px;padding:22px var(--pad);background:var(--warm);font-size:14px;font-weight:600;color:#3a3a3a}
.creds li:before{content:"✓";color:var(--accent);margin-right:8px}

/* sections */
.sec{padding:clamp(64px,10vw,120px) var(--pad);max-width:var(--max);margin:0 auto}
.sec--dark{max-width:none;background:var(--ink);color:#fff}
.sec--dark>*{max-width:var(--max);margin-left:auto;margin-right:auto}
.grid4{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:28px;margin-top:44px}
.grid4 li{border-top:2px solid var(--ink);padding-top:18px}
.sec--dark .grid4 li{border-color:#fff}
.grid4 p{color:var(--muted);margin-top:10px;font-size:16px}
.sec--dark .grid4 p{color:#bdbdbd}
.grid3{grid-template-columns:repeat(3,1fr)}
.num{display:block;font-size:14px;font-weight:700;color:var(--accent);margin-bottom:10px}

/* project cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:40px}
.card{position:relative;border:0;padding:0;background:#ddd;border-radius:var(--r);overflow:hidden;cursor:pointer;aspect-ratio:4/3;text-align:left;font:inherit;color:#fff}
.card img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.card:hover img{transform:scale(1.04)}
.card:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(0,0,0,.7))}
.card__txt{position:absolute;left:18px;right:18px;bottom:16px;z-index:1;display:flex;flex-direction:column;gap:2px}
.card__txt strong{font-size:clamp(18px,2vw,24px);letter-spacing:-.01em}
.card__txt small{font-size:14px;opacity:.85}
@media(min-width:821px){.cards{grid-auto-rows:270px;grid-auto-flow:dense}.card{aspect-ratio:auto}.card--big{grid-column:span 2;grid-row:span 2}.card--wide{grid-column:span 2}}

/* team */
.team{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin-top:44px}
.person{display:grid;grid-template-columns:200px 1fr;gap:24px;align-items:start}
.person img{border-radius:var(--r);aspect-ratio:7/8;object-fit:cover;filter:grayscale(1)}
.person .role{color:var(--accent);font-weight:700;font-size:14px;margin:6px 0 12px;text-transform:uppercase;letter-spacing:.06em}
.person p{color:#444;font-size:16px}

/* contact */
.contact{text-align:center}
.contact .lead{margin-left:auto;margin-right:auto}
.contact .row{justify-content:center;margin-top:32px}
.area{margin-top:28px;color:var(--muted);font-size:15px}

/* footer */
.foot{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:26px var(--pad);border-top:1px solid var(--line);font-size:14px;color:var(--muted)}
.soc{display:flex;gap:10px}
.ico{display:inline-flex;width:38px;height:38px;border-radius:50%;border:1px solid var(--line);align-items:center;justify-content:center;color:var(--ink);margin-top:12px}
.foot .ico{margin:0}
.ico svg{width:18px;height:18px;fill:currentColor}
.ico:hover{background:var(--ink);color:#fff}

/* floating call button (mobile) */
.fab{display:none;position:fixed;right:16px;bottom:76px;z-index:60;width:58px;height:58px;border-radius:50%;background:var(--accent);color:#fff;align-items:center;justify-content:center;box-shadow:0 8px 24px rgba(0,0,0,.25)}
.fab svg{width:24px;height:24px;fill:#fff}

/* lightbox */
.lb{border:0;padding:0;max-width:none;max-height:none;width:100%;height:100%;background:#0d0d0d;color:#fff;overflow-y:auto}
.lb::backdrop{background:#000}
.lb__head{position:sticky;top:0;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:16px var(--pad);background:rgba(13,13,13,.92);z-index:2}
.lb__head strong{display:block;font-size:22px}
.lb__head small{color:#aaa;font-size:14px}
.lb__x{background:#fff;color:#111;border:0;width:44px;height:44px;border-radius:50%;font-size:28px;line-height:1;cursor:pointer;flex:none}
#lbD{padding:0 var(--pad);max-width:760px;color:#ccc}
.lb__imgs{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:10px;padding:20px var(--pad) 60px;max-width:1500px;margin:0 auto}
.lb__imgs button{border:0;padding:0;background:#222;border-radius:8px;overflow:hidden;cursor:zoom-in;aspect-ratio:4/3}
.lb__imgs img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.lb__imgs button:hover img{transform:scale(1.04)}
.view{position:fixed;inset:0;z-index:5;background:rgba(0,0,0,.96);display:none;align-items:center;justify-content:center}
.view.on{display:flex}
.view img{max-width:96vw;max-height:88vh;object-fit:contain;border-radius:4px}
.view button{position:absolute;background:rgba(255,255,255,.12);color:#fff;border:0;width:52px;height:52px;border-radius:50%;font-size:30px;cursor:pointer}
.view .vp{left:14px;top:50%;transform:translateY(-50%)}.view .vn{right:14px;top:50%;transform:translateY(-50%)}.view .vx{right:14px;top:14px}
.view .vc{position:absolute;bottom:14px;left:0;right:0;text-align:center;color:#aaa;font-size:14px}

/* responsive */
@media(max-width:1000px){.grid4,.grid3{grid-template-columns:1fr 1fr}.team{grid-template-columns:1fr}}
@media(max-width:820px){
  .burger{display:flex;margin-left:auto}
  .top>.btn--sm{display:none}
  .nav{position:fixed;inset:65px 0 auto 0;flex-direction:column;gap:0;background:#fff;border-bottom:1px solid var(--line);padding:8px var(--pad) 20px;font-size:20px;transform:translateY(-130%);transition:transform .25s;margin:0}
  .nav a{padding:12px 0;border-bottom:1px solid var(--line)}
  .nav .lang{border:0;border-radius:0;font-size:20px;padding:12px 0}
  .top.open .nav{transform:none}
  .fab{display:flex}
  .cards{grid-template-columns:1fr}
  .card{aspect-ratio:4/3}
  .person{grid-template-columns:120px 1fr;gap:16px}
  .foot{flex-direction:column;text-align:center;padding-bottom:90px}
}
@media(max-width:560px){
  body{font-size:16px}
  .grid4,.grid3{grid-template-columns:1fr;gap:22px}
  .lb__imgs{grid-template-columns:1fr 1fr;gap:6px}
  .hero{min-height:82svh}
  .hero .row .btn{flex:1;justify-content:center}
  .contact .row{flex-direction:column}
  .contact .btn{justify-content:center}
  .creds{justify-content:flex-start;gap:8px 20px;font-size:13px}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

.why .grid4 li{border-color:var(--accent)}
.why h2{max-width:18ch}