:root {
  /* Palette Soluzione3: teal/petrolio del logo e della carta intestata, con
     il blu navy dello sfondo del logo per la sidebar. */
  --primary: #008080;
  --primary-dark: #045f5f;
  --brand-navy: #16324a;
  --brand-navy-dark: #0f2436;
  --bg: #f4f7f7;
  --card-bg: #ffffff;
  --border: #dbe6e6;
  --text: #1e293b;
  --text-muted: #64748b;
  --danger: #dc2626;
  --success: #16a34a;
  --warning: #d97706;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 220px;
  background: var(--brand-navy);
  color: #f1f5f9;
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.sidebar-logo {
  background: #ffffff;
  border-radius: 8px;
  padding: 10px 12px;
  margin-bottom: 8px;
}

.sidebar-logo img {
  display: block;
  width: 100%;
  height: auto;
}

.sidebar nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sidebar nav a {
  color: #cbd5e1;
  text-decoration: none;
  padding: 10px 12px;
  border-radius: 6px;
  font-size: 14px;
}

.sidebar nav a:hover {
  background: var(--brand-navy-dark);
  color: #fff;
}

.sidebar nav a.active {
  background: var(--primary);
  color: #fff;
}

.sidebar-user {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--brand-navy-dark);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: #94a3b8;
}

.sidebar-user a {
  color: #cbd5e1;
  text-decoration: none;
}

.sidebar-user a:hover {
  color: #fff;
}

.hint {
  font-size: 11px;
  color: #94a3b8;
  line-height: 1.4;
}

.content {
  flex: 1;
  padding: 28px 36px;
  max-width: 1100px;
}

h2 { margin-top: 0; }

.toolbar {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 20px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

th, td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}

th {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
}

tr.clickable { cursor: pointer; }
tr.clickable:hover { background: #f8fafc; }

.badge {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
}

.badge-NEW { background: #dbeafe; color: #1d4ed8; }
.badge-ASSIGNED { background: #e0e7ff; color: #4338ca; }
.badge-IN_PROGRESS { background: #fef3c7; color: #b45309; }
.badge-WAITING_CUSTOMER { background: #ede9fe; color: #6d28d9; }
.badge-RESOLVED { background: #dcfce7; color: #15803d; }
.badge-ARCHIVED { background: #e2e8f0; color: #475569; }

.badge-LOW { background: #e2e8f0; color: #475569; }
.badge-MEDIUM { background: #dbeafe; color: #1d4ed8; }
.badge-HIGH { background: #fef3c7; color: #b45309; }
.badge-URGENT { background: #fee2e2; color: #b91c1c; }

.badge-DRAFT { background: #e2e8f0; color: #475569; }
.badge-SENT { background: #dbeafe; color: #1d4ed8; }
.badge-PAID { background: #dcfce7; color: #15803d; }

.btn {
  border: none;
  border-radius: 6px;
  padding: 9px 16px;
  font-size: 14px;
  cursor: pointer;
  background: var(--primary);
  color: #fff;
}

.btn:hover { background: var(--primary-dark); }
.btn-secondary { background: #334155; }
.btn-secondary:hover { background: #1e293b; }
.btn-block { width: 100%; }
.btn-sm { padding: 5px 10px; font-size: 12px; }

select, input, textarea {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 14px;
  font-family: inherit;
}

label {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.form-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.form-group { flex: 1; min-width: 160px; }

/* Valori lunghi senza spazi (email, domini) altrimenti sforerebbero la
   larghezza della colonna e si sovrapporrebbero alla colonna successiva
   (es. "Contatto" che si sovrapponeva a "Stato"). */
.form-group > div {
  overflow-wrap: break-word;
  word-break: break-word;
}

.back-link {
  display: inline-block;
  margin-bottom: 14px;
  color: var(--primary);
  text-decoration: none;
  font-size: 13px;
}

.message {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  margin-bottom: 10px;
}

.message-IN { background: #f8fafc; }
.message-OUT { background: #eff6ff; }

.message-meta {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 6px;
  display: flex;
  justify-content: space-between;
}

.message-body { white-space: pre-wrap; font-size: 14px; }

.empty-state {
  color: var(--text-muted);
  font-size: 14px;
  padding: 20px 0;
}

.alert {
  padding: 10px 14px;
  border-radius: 6px;
  font-size: 13px;
  margin-bottom: 14px;
}

.alert-error { background: #fee2e2; color: #b91c1c; }
.alert-success { background: #dcfce7; color: #15803d; }

.total-row td { font-weight: 700; }