:root{--bg:#000;--accent:#00CCFF;--muted:#9aa;--card:#07121a}
*{box-sizing:border-box}body{margin:0;font-family:Inter,Arial,Helvetica,sans-serif;background:var(--bg);color:#E6F7FF}
.header{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;border-bottom:1px solid rgba(255,255,255,0.03)}
.brand{display:flex;gap:12px;align-items:center}
.brand .logo{width:48px;height:48px;border-radius:8px;object-fit:cover;border:1px solid var(--accent)}
.brand h1{margin:0;color:var(--accent);font-size:1.1rem}
.nav a{color:#fff;margin-left:12px;text-decoration:none}
.container{max-width:1100px;margin:20px auto;padding:0 16px}
.grid{display:grid;grid-template-columns:1fr 320px;gap:20px}
.main h2{color:var(--accent)}
.card, .category, .login-card{background:linear-gradient(180deg,#071018,#071a21);padding:14px;border-radius:10px;border:1px solid rgba(255,255,255,0.03)}
.category{margin-bottom:12px}
.category h3{margin:0 0 6px;color:var(--accent)}
.desc{color:var(--muted);margin:0 0 6px}
.meta{color:var(--muted);font-size:0.95rem}
.btn{display:inline-block;padding:8px 12px;border-radius:8px;background:var(--accent);color:#000;text-decoration:none;font-weight:700}
.login-card input, input[type=text], input[type=password], input[type=email], textarea{width:100%;padding:10px;border-radius:8px;border:0;background:#0a0a0a;color:#fff;margin-bottom:8px}
.btn[type=submit], button.btn{border:0;cursor:pointer}
.auth-card{max-width:420px;margin:60px auto;padding:22px;background:#070b0d;border-radius:12px}
.alert{background:#2b0000;color:#f88;padding:10px;border-radius:8px;margin-bottom:12px}
.success{background:#062d09;color:#8f8;padding:10px;border-radius:8px;margin-bottom:12px}
.footer{padding:20px;text-align:center;color:var(--muted);margin-top:40px}
@media(max-width:880px){.grid{grid-template-columns:1fr}}