body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;margin:0;color:#222;background:#fafafa}
.topbar{display:flex;justify-content:space-between;align-items:center;padding:10px 16px;background:#111;color:#fff}
.topbar a{color:#fff;margin-right:12px;text-decoration:none}
.container{max-width:980px;margin:24px auto;padding:0 16px}
h2{margin:16px 0}
.card{background:#fff;border:1px solid #eee;border-radius:12px;padding:12px;margin:8px 8px 8px 0;display:inline-block}
.kpi{display:flex;gap:12px;flex-wrap:wrap}
table{width:100%;border-collapse:collapse;background:#fff;border-radius:12px;overflow:hidden}
th,td{padding:10px;border-bottom:1px solid #eee;text-align:left}
label{display:block;margin:8px 0}
input,select,button{padding:8px;border:1px solid #ddd;border-radius:8px}
button{cursor:pointer;background:#111;color:#fff}
.alert{background:#ffecec;color:#b00;padding:10px;border-radius:8px;margin:10px 0}
fieldset{border:1px solid #ddd;border-radius:12px;padding:10px;margin:12px 0;background:#fff}
.modal{position:fixed;inset:0;z-index:1000}
.modal-backdrop{position:absolute;inset:0;background:rgba(0,0,0,.5)}
.modal-card{position:relative;background:#fff;border-radius:16px;max-width:640px;margin:5vh auto;padding:16px}
.grid90{display:grid;grid-template-columns:repeat(10,1fr);gap:6px;margin:12px 0}
.grid90 button{padding:10px;border:1px solid #ddd;border-radius:8px;background:#fff;cursor:pointer}
.grid90 button.active{background:#111;color:#fff;border-color:#111}
.chips .chip small{opacity:.9}

/* Override del button globale dentro la griglia 1–90 */
.grid90 button {
  background: #fff;
  color: #111;          /* testo scuro visibile */
}
.grid90 button.active {
  background: #111;
  color: #fff;
  border-color: #111;
}
.grid90 button:hover {
  border-color: #aaa;
}