:root {
  --blu-mdb: #2F4858;
  --blu-mdb-chiaro: #3d5c73;
  --sfondo: #F5F6F7;
  --bordo: #DADFE3;
  --testo: #24313A;
  --testo-secondario: #6B7680;
  --giallo-input: #FFF6D9;
  --rosso-errore: #B3261E;
  --rosso-errore-sfondo: #FCE1E1;
  --verde-successo: #1E7A34;
  --verde-successo-sfondo: #E3F3E1;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--sfondo);
  color: var(--testo);
  font-size: 15px;
}

header.testata {
  background: var(--blu-mdb);
  color: white;
  padding: 14px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

header.testata a { color: white; text-decoration: none; }
header.testata .titolo { font-size: 18px; font-weight: bold; }
header.testata nav a {
  margin-left: 20px;
  font-size: 14px;
  opacity: 0.9;
}
header.testata nav a:hover { opacity: 1; text-decoration: underline; }

main {
  max-width: 1100px;
  margin: 28px auto;
  padding: 0 20px 60px;
}

h1 { font-size: 22px; color: var(--blu-mdb); margin-bottom: 4px; }
h2 { font-size: 17px; color: var(--blu-mdb); margin-top: 28px; }
.sottotitolo { color: var(--testo-secondario); margin-top: 0; margin-bottom: 20px; font-size: 14px; }

.scheda {
  background: white;
  border: 1px solid var(--bordo);
  border-radius: 6px;
  padding: 20px 24px;
  margin-bottom: 20px;
}

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--bordo); }
th {
  background: var(--blu-mdb);
  color: white;
  font-weight: bold;
  font-size: 13px;
  position: sticky;
  top: 0;
}
tr:hover td { background: #F0F3F5; }
td.numero { text-align: right; }

.badge {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: bold;
  background: #E6ECEF;
  color: var(--blu-mdb);
  white-space: nowrap;
}
.badge.telefonata { background: #EFE7DA; color: #7A5A1E; }
.badge.mail { background: #DDEAF7; color: #1E5A8A; }
.badge.form { background: #EADDF7; color: #6A1E8A; }
.badge.confermata { background: var(--verde-successo-sfondo); color: var(--verde-successo); }

form .campo { margin-bottom: 14px; }
form label { display: block; font-size: 13px; font-weight: bold; margin-bottom: 4px; color: var(--testo); }
form .aiuto { font-size: 12px; color: var(--testo-secondario); margin-top: 3px; }

input[type=text], input[type=email], input[type=tel], input[type=date],
input[type=time], input[type=number], input[type=password], select, textarea {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--bordo);
  border-radius: 4px;
  font-size: 14px;
  font-family: inherit;
  background: var(--giallo-input);
}
textarea { min-height: 60px; resize: vertical; }
input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--blu-mdb-chiaro);
  outline-offset: 1px;
}

.griglia-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; }
.griglia-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 0 20px; }
@media (max-width: 720px) {
  .griglia-2, .griglia-3 { grid-template-columns: 1fr; }
}

.checkbox-riga { display: flex; gap: 18px; align-items: center; margin-top: 4px; }
.checkbox-riga label { display: flex; align-items: center; gap: 5px; font-weight: normal; font-size: 13px; }
.checkbox-riga input[type=checkbox] { width: auto; }

button, .pulsante {
  display: inline-block;
  background: var(--blu-mdb);
  color: white;
  border: none;
  padding: 10px 18px;
  border-radius: 4px;
  font-size: 14px;
  font-weight: bold;
  cursor: pointer;
  text-decoration: none;
}
button:hover, .pulsante:hover { background: var(--blu-mdb-chiaro); }
.pulsante.secondario { background: white; color: var(--blu-mdb); border: 1px solid var(--blu-mdb); }
.pulsante.secondario:hover { background: #EEF2F4; }
.pulsante.pericolo { background: white; color: var(--rosso-errore); border: 1px solid var(--rosso-errore); }
.pulsante.pericolo:hover { background: var(--rosso-errore-sfondo); }

.barra-azioni { display: flex; gap: 10px; margin-top: 18px; }

.messaggio { padding: 12px 16px; border-radius: 4px; margin-bottom: 16px; font-size: 14px; }
.messaggio.successo { background: var(--verde-successo-sfondo); color: var(--verde-successo); }
.messaggio.errore { background: var(--rosso-errore-sfondo); color: var(--rosso-errore); }

.avviso-alunni { color: var(--rosso-errore); font-weight: bold; }

.filtri { display: flex; gap: 14px; align-items: flex-end; flex-wrap: wrap; margin-bottom: 16px; }
.filtri .campo { margin-bottom: 0; min-width: 160px; }

.vuoto { text-align: center; padding: 40px 20px; color: var(--testo-secondario); }

.login-pagina {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--blu-mdb);
}
.login-scheda {
  background: white;
  padding: 40px 36px;
  border-radius: 8px;
  width: 340px;
}
.login-scheda h1 { text-align: center; }