:root {
  --bg:#f4f6f9; --panel:#fff; --text:#1d2433; --muted:#6d7583;
  --line:#dfe3ea; --accent:#1f5eff; --danger:#c62828; --ok:#147a3d;
}
*{box-sizing:border-box}
body{margin:0;font-family:Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--text)}
.topbar{background:#111827;color:white;padding:14px 22px;display:flex;gap:22px;align-items:center}
.topbar a{color:#dbe5ff;text-decoration:none}
.topbar strong{margin-right:auto}
.wrap{max-width:1400px;margin:22px auto;padding:0 18px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px}
.kpi{font-size:30px;font-weight:700;margin-top:6px}
.muted{color:var(--muted)}
table{width:100%;border-collapse:collapse;background:white}
th,td{padding:10px 9px;border-bottom:1px solid var(--line);text-align:left;font-size:14px}
th{background:#f8fafc}
input,select,textarea{width:100%;padding:9px;border:1px solid #cbd2dc;border-radius:7px;background:white}
label{font-weight:600;font-size:13px;display:block;margin-bottom:5px}
.formgrid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.full{grid-column:1/-1}
.btn{display:inline-block;border:0;border-radius:8px;padding:9px 14px;background:var(--accent);color:white;text-decoration:none;cursor:pointer}
.btn.secondary{background:#4b5563}.btn.danger{background:var(--danger)}.btn.ok{background:var(--ok)}
.actions{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0}
.badge{display:inline-block;padding:3px 8px;border-radius:999px;background:#e7ecf5;font-size:12px}
.badge.ok{background:#dcfce7;color:#166534}.badge.danger{background:#fee2e2;color:#991b1b}.badge.warn{background:#fef3c7;color:#92400e}
.flash{padding:10px 12px;background:#eef6ff;border:1px solid #bdd8ff;border-radius:8px;margin-bottom:12px}
@media(max-width:850px){.formgrid{grid-template-columns:1fr}.topbar{flex-wrap:wrap}}


/* Tabelle ordinabili */
th.sortable-header {
  cursor: pointer;
  user-select: none;
  position: relative;
  padding-right: 22px;
}
th.sortable-header:hover {
  background: #e8eef8;
}
th.sortable-header::after {
  content: "⇅";
  position: absolute;
  right: 7px;
  opacity: .35;
  font-size: 12px;
}
th.sortable-header.sort-asc::after {
  content: "▲";
  opacity: .85;
}
th.sortable-header.sort-desc::after {
  content: "▼";
  opacity: .85;
}