/* Minimal clean style (no external CDN) */
:root { --bg:#0f172a; --card:#111827; --muted:#94a3b8; --accent:#22c55e; --text:#e5e7eb; }
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu; background:var(--bg); color:var(--text);
    font-weight: 200;}
a{color:#38bdf8;text-decoration:none}
.container{margin:0 auto;padding:24px}
.card{background:var(--card);border-radius:16px;padding:20px;box-shadow:0 10px 30px rgba(0,0,0,.25)}
.grid{display:grid;gap:16px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
input,select,textarea{width:100%;padding:12px;border-radius:10px;border:1px solid #334155;background:#0b1220;color:var(--text)}
label{display:block;margin-top:10px;margin-bottom:6px;color:var(--muted)}
button,.btn{background:linear-gradient(90deg,#A53030,#D13737);border:0;padding:10px 16px;color:#fff;font-weight:200;cursor:pointer; text-transform:uppercase;font-size: 14px;}
.btn-secondary{background:#334155}
.table{width:100%;border-collapse:collapse;border-radius:12px;overflow:hidden}
.table th,.table td{padding:12px;border-bottom:1px solid #1f2937;text-align:left; text-transform:uppercase;}
.badge{padding:4px 10px;border-radius:10px;background:#1f2937;color:#a3e635;font-size:60px}
.alert{padding:12px;border-radius:10px;background:#0b1220;border:1px solid #334155;margin-bottom:12px}
nav {text-align:center;}
nav a{margin-right:12px ;    margin-left: 12px;text-transform: uppercase;
    font-weight: 200; color:white; text-align:center;}
footer{opacity:.6;margin-top:24px}
fieldset{border:1px solid #334155;border-radius:12px;padding:12px}
legend{padding:0 8px;color:#a5b4fc}
.printable { background:#fff;color:#111; }
.hidden{display:none}

h2{color:#A53030; text-align:center; text-transform:uppercase;}

.printable img[alt="Logo RUA Srl"] {
  opacity: 0.95;
  margin-bottom: 10px;
}