body { background:#0f172a; color:#e5e7eb; font-family:Arial; }
a { color:#38bdf8; text-decoration:none; margin-right:10px; }
.nav { background:#020617; padding:15px; }
.container { padding:20px; }

table { width:100%; border-collapse:collapse; }
th, td { padding:10px; border-bottom:1px solid #1e293b; }

.box {
    width:300px;
    margin:80px auto;
    background:#020617;
    padding:20px;
    border-radius:8px;
}

input, select, button {
    width:100%;
    margin:8px 0;
    padding:8px;
    border-radius:5px;
    border:none;
}

button { background:#38bdf8; cursor:pointer; }
.del { color:#ef4444; }

.login { display:flex; justify-content:center; align-items:center; height:100vh; }
.error { color:#ef4444; }