:root {
  --bg:#0b1220; --card:#0e1628; --text:#e6eefc; --muted:#8ea0c7; --accent:#49e27d;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font:16px/1.55 system-ui,Segoe UI,Roboto,Arial}
a{color:var(--accent);text-decoration:none}
.wrap{max-width:1200px;margin:0 auto;padding:16px}
.site-header{display:flex;align-items:center;justify-content:space-between;padding:16px 0}
.logo{font-weight:800;letter-spacing:.5px}
.menu a{margin-left:16px;color:var(--muted)}
.menu a.active{color:var(--text)}
.hero{background:var(--card);padding:24px;border-radius:14px;margin:8px 0 24px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px}
.card{background:var(--card);border-radius:14px;padding:16px}
.card h3{margin:.2rem 0 .6rem}
.muted{color:var(--muted);margin-top:10px}
.footer{color:var(--muted);padding:24px 0}
.back{display:inline-block;margin:10px 0 18px;color:var(--muted)}
article h1{margin:.2rem 0 1rem}
article p{margin:.6rem 0}