*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:#1d2733;line-height:1.6;background:#fff}
img{max-width:100%;height:auto;display:block}
a{color:#1f5fa8}
.wrap{max-width:1040px;margin:0 auto;padding:0 20px}
.site-header{border-bottom:1px solid #e3e8ee;background:#fff;position:sticky;top:0;z-index:5}
.nav{display:flex;align-items:center;justify-content:space-between;height:60px;gap:12px}
.brand{display:flex;align-items:center;gap:8px;font-weight:700;font-size:1.1rem;color:#1f3a5f;text-decoration:none;white-space:nowrap;flex-shrink:0}
.nav nav{white-space:nowrap}
.nav nav a{margin-left:18px;color:#1d2733;text-decoration:none;font-weight:500}
.nav nav a:hover,.nav nav a:focus-visible{color:#1f5fa8}
.hero{background:linear-gradient(180deg,#f2f6fa,#fff);padding:72px 0 56px}
.hero h1{font-size:clamp(2.2rem,6vw,3.4rem);margin:0 0 12px;color:#1f3a5f;line-height:1.1}
.lead{font-size:1.2rem;max-width:620px;margin:0;color:#3a4756}
.btn{display:inline-block;background:#1f3a5f;color:#fff;text-decoration:none;padding:12px 22px;border-radius:8px;font-weight:600}
.btn:hover,.btn:focus-visible{background:#2c5282;color:#fff}
.btn:focus-visible,a:focus-visible{outline:2px solid #1f5fa8;outline-offset:2px}
.section{padding:56px 0}
h2{font-size:1.7rem;margin:0 0 20px;color:#1f3a5f}
[id]{scroll-margin-top:76px}
.project-grid{display:grid;gap:24px;grid-template-columns:1fr;margin:24px 0 0;padding:0;list-style:none}
@media (min-width:720px){
  .project-grid{grid-template-columns:repeat(2,1fr)}
}
.card{display:flex;flex-direction:column;height:100%;border:1px solid #e3e8ee;border-radius:12px;background:#fff}
.card-body{display:flex;flex-direction:column;flex:1;padding:18px 20px 20px}
.card h3{margin:0 0 6px;font-size:1.2rem;line-height:1.3;color:#1f3a5f}
.card-summary{margin:0 0 14px;color:#3a4756;font-size:.97rem}
.card-action{margin-top:auto}
.card .btn{padding:10px 16px}
.site-footer{border-top:1px solid #e3e8ee;padding:28px 0;font-size:.95rem;color:#5b6775}
.site-footer nav{display:flex;flex-wrap:wrap;gap:8px 20px;margin-bottom:8px}
.site-footer a{color:#3a4756}
@media (max-width:560px){
  .nav nav a{margin-left:10px;font-size:.92rem}
  .brand{font-size:1rem}
}
@media (max-width:480px){
  .hero{padding:48px 0 40px}
  .section{padding:40px 0}
  .card-body{padding:20px}
  .btn{text-align:center;width:100%}
}