:root{--bg:#0f1420;--card:#171e2e;--text:#e6e9f0;--muted:#9aa3b5;--accent:#4f8cff}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}
a{color:var(--accent);text-decoration:none}
nav{display:flex;justify-content:space-between;align-items:center;padding:20px 6vw}
nav ul{display:flex;gap:24px;list-style:none}
nav a{color:var(--text)}
.logo{font-weight:700;font-size:1.3rem}
.logo span{color:var(--accent)}
.hero{background:linear-gradient(180deg,#131a2a 0%,var(--bg) 100%)}
.hero-text{max-width:820px;padding:80px 6vw 100px}
h1{font-size:2.4rem;line-height:1.2;margin-bottom:16px}
.hero-text p{color:var(--muted);font-size:1.1rem;margin-bottom:28px}
.btn{display:inline-block;background:var(--accent);color:#fff;padding:12px 24px;border-radius:8px;font-weight:600}
main{padding:0 6vw}
section{padding:60px 0;border-top:1px solid #1f2840}
h2{font-size:1.7rem;margin-bottom:24px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
article{background:var(--card);border-radius:12px;padding:24px}
article h3{margin-bottom:8px}
article p{color:var(--muted)}
.stack,.contacts{list-style:none;margin-top:16px;color:var(--muted)}
.stack li,.contacts li{padding:4px 0}
footer{padding:40px 6vw;color:var(--muted);border-top:1px solid #1f2840;font-size:.9rem}
@media(max-width:640px){nav ul{display:none}h1{font-size:1.8rem}}