:root{
  --bg:#f7f9fc;--card:#fff;--ink:#121826;--muted:#51607a;--primary:#0ea5e9;--shadow:0 10px 30px rgba(2,12,27,.08)
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:400 16px/1.6 'Inter',system-ui,Segoe UI,Roboto,Arial,sans-serif}
img{max-width:100%;height:auto;display:block}
.container{width:min(1120px,92%);margin:0 auto}
/* Header */
.site-header{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.8);backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid rgba(2,12,27,.06)}
.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.brand{font:700 18px/1 'Montserrat',sans-serif;color:var(--ink);text-decoration:none}
.menu{display:flex;gap:18px;align-items:center}
.menu a{color:var(--ink);text-decoration:none}
.menu .btn{margin-left:6px}
/* Buttons */
.btn{display:inline-block;padding:10px 14px;border-radius:10px;border:1px solid rgba(2,12,27,.12);text-decoration:none;color:var(--ink);background:#fff;box-shadow:var(--shadow)}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--primary);color:#fff;border-color:transparent}
.btn-ghost{background:transparent;border-color:rgba(2,12,27,.2)}
/* Hero */
.hero{background:linear-gradient(180deg,#ffffff 0%,#f7fbff 60%,#eef7ff 100%)}
.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:32px;align-items:center;padding:64px 0}
.hero h1{font:700 clamp(28px,6vw,48px)/1.1 'Montserrat',sans-serif;margin:0 0 8px}
.hero .subtitle{color:var(--muted);font-size:clamp(16px,2.5vw,18px)}
.cta-row{display:flex;gap:10px;margin-top:16px}
.hero-figure{height:300px;border-radius:20px;background:radial-gradient(400px 200px at 20% 10%, #e1f7ff 0%, #dbeafe 30%, #ffffff 80%);box-shadow:var(--shadow)}
/* Sections */
.section{padding:64px 0}
.section h2{font:700 clamp(22px,4vw,34px)/1.2 'Montserrat',sans-serif;margin:0 0 22px}
/* Services */
.services-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
.services-grid article{background:var(--card);padding:18px;border-radius:14px;box-shadow:var(--shadow)}
.services-grid h3{margin:0 0 6px;font-weight:600}
.services-grid p{margin:0;color:var(--muted)}
/* Projects */
.projects .grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px}
.card{background:var(--card);border-radius:14px;overflow:hidden;box-shadow:var(--shadow);transition:transform .2s ease, box-shadow .2s ease}
.card:hover{transform:translateY(-3px);box-shadow:0 16px 40px rgba(2,12,27,.12)}
.card img{aspect-ratio:4/3;object-fit:contain;background:#f1f3f9}
.card-title{font:600 16px/1.35 'Inter',sans-serif;padding:10px 12px 14px;margin:0}
/* Contact */
.contact p{color:var(--muted)}
.contact-cards{display:flex;flex-wrap:wrap;gap:10px;margin-top:8px}
.contact-card{background:#fff;padding:12px 14px;border-radius:12px;border:1px solid rgba(2,12,27,.08);text-decoration:none;color:var(--ink);box-shadow:var(--shadow)}
/* Footer */
.site-footer{padding:26px 0;color:#334155;border-top:1px solid rgba(2,12,27,.06);background:#fff}
/* Lightbox */
.lightbox{padding:0;border:none;background:rgba(0,0,0,.75)}
.lightbox::backdrop{background:rgba(0,0,0,.75)}
.lightbox img{max-width:min(1200px,92vw);max-height:85vh;border-radius:10px}
@media (max-width: 860px){.hero-inner{grid-template-columns:1fr}.hero-figure{height:220px}}