*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:#0f172a;background:#ffffff;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,sans-serif;line-height:1.6}
img{max-width:100%;display:block}
.container{width:100%;max-width:1100px;margin:0 auto;padding:0 20px}

.site-header{position:sticky;top:0;background:#ffffffcc;backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid #e5e7eb;z-index:10}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{font-weight:700;color:#0f172a;text-decoration:none;letter-spacing:.2px}
.nav a{margin-left:16px;text-decoration:none;color:#0f172a;padding:8px 12px;border-radius:8px}
.nav a:hover{background:#f1f5f9}

.hero{background:linear-gradient(180deg,#f8fafc, #ffffff)}
.hero-inner{padding:80px 0;text-align:center}
.hero h1{margin:0 0 12px 0;font-size:44px;line-height:1.1;letter-spacing:-.02em}
.hero p{margin:0 auto 24px auto;max-width:720px;color:#475569}
.hero-cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

.section{padding:56px 0}
.section-alt{background:#f8fafc}
.section h2{margin:0 0 16px 0;font-size:28px;letter-spacing:-.01em}

.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{border:1px solid #e5e7eb;border-radius:12px;padding:20px;background:#fff}
.card h3{margin:0 0 8px 0;font-size:18px}
.card p{margin:0;color:#475569}

.about{display:block}

.contact{text-align:center}
.contact-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:8px}

.site-footer{border-top:1px solid #e5e7eb;background:#ffffff}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 0}
.footer-inner p{margin:0;color:#475569}
.footer-inner a{text-decoration:none;color:#0f172a}
.footer-inner a:hover{text-decoration:underline}

.btn{display:inline-block;background:#0f172a;color:#fff;text-decoration:none;padding:10px 16px;border-radius:10px;font-weight:600;letter-spacing:.2px;transition:transform .04s ease, opacity .2s ease}
.btn:hover{opacity:.92}
.btn:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:#0f172a;border:1px solid #0f172a}
.btn-ghost:hover{background:#0f172a;color:#fff}

@media (max-width:900px){
  .grid{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .hero h1{font-size:34px}
  .grid{grid-template-columns:1fr}
  .header-inner{height:56px}
  .nav a{margin-left:8px}
}