:root{
 --bg:#050505;
 --panel:#120000;
 --red:#d90000;
 --red2:#ff1a1a;
 --text:#ffffff;
}
body{
 background:linear-gradient(135deg,#050505,#260000);
 color:var(--text);
}
.card,.panel{
 background:linear-gradient(145deg,#120000,#050505);
 border:1px solid rgba(255,26,26,.35);
 box-shadow:0 0 25px rgba(255,0,0,.15);
 border-radius:16px;
}
button,.btn{
 background:linear-gradient(90deg,#b00000,#ff1a1a);
 color:#fff;
 border:none;
 border-radius:10px;
}
button:hover,.btn:hover{
 box-shadow:0 0 18px rgba(255,0,0,.6);
}