:root {
  --bg-dark: #0a0f1d;
  --bg-darker: #070a14;
  --card-bg: #111827;
  --card-border: #222e42;
  --primary-gradient: linear-gradient(135deg, #00f5d4, #00bbf9);
  --text: #f0f4f8;
  --text-muted: #a0aec0;
  --radius: 16px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Segoe UI',system-ui,-apple-system,sans-serif;
  background:var(--bg-darker);
  color:var(--text);
  line-height:1.6;
}

a{color:inherit;text-decoration:none}

.container{max-width:1000px;margin:0 auto;padding:32px 18px}

.topbar{position:sticky;top:0;z-index:20;background:rgba(10,15,29,.75);backdrop-filter:blur(10px);border-bottom:1px solid rgba(34,46,66,.5)}
.topbar-inner{max-width:1000px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;padding:14px 18px}
.logo{font-weight:900;background:var(--primary-gradient);-webkit-background-clip:text;background-clip:text;color:transparent;font-size:1.25rem}
.nav a{color:var(--text-muted);font-weight:600;margin-left:16px}
.nav a:hover{color:var(--text)}

h1{font-size:2rem;line-height:1.2;margin:0 0 10px}
.lede{color:var(--text-muted);max-width:68ch;margin:0 0 24px}

.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
@media (max-width: 900px){.grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (max-width: 620px){.grid{grid-template-columns:1fr;}}

.card{background:rgba(17,24,39,.6);border:1px solid rgba(34,46,66,.7);border-radius:var(--radius);padding:16px;transition:.2s ease}
.card:hover{transform:translateY(-2px);border-color:rgba(0,187,249,.6)}
.kicker{font-size:.78rem;letter-spacing:.02em;text-transform:uppercase;color:var(--text-muted)}
.card h2{font-size:1.05rem;margin:8px 0 6px}
.card p{margin:0;color:var(--text-muted)}

.post{max-width:760px}
.post h1{font-size:2.2rem}
.post .meta{color:var(--text-muted);margin:8px 0 18px}
.post img{max-width:100%;border-radius:14px;border:1px solid rgba(34,46,66,.7)}
.post h2{margin-top:26px}
.post p, .post li{color:var(--text-muted)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:12px 18px;border-radius:999px;font-weight:800;
  background:var(--primary-gradient);color:#001018;
}