body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  color: #1a1a1a;
  background: #f7f7f5;
}

.entete {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.75rem 1.5rem;
  background: #1f2d3d;
  color: white;
}

.entete-titre {
  font-weight: 700;
  letter-spacing: 0.02em;
}

.entete-nav {
  display: flex;
  gap: 1rem;
  flex: 1;
}

.entete-nav a {
  color: white;
  text-decoration: none;
}

.entete-nav a:hover {
  text-decoration: underline;
}

.entete-compte {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0;
}

main {
  max-width: 48rem;
  margin: 2rem auto;
  padding: 0 1.5rem;
}

.formulaire {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 24rem;
}

.formulaire label {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: 0.9rem;
}

.formulaire input,
.formulaire select {
  padding: 0.4rem;
  font-size: 1rem;
}

.formulaire button {
  align-self: flex-start;
  padding: 0.5rem 1rem;
  cursor: pointer;
}

.bloc {
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid #ddd;
}

.erreur {
  color: #a4161a;
}

.note {
  font-size: 0.85rem;
  color: #555;
}

table.historique {
  border-collapse: collapse;
  width: 100%;
}

table.historique th,
table.historique td {
  border: 1px solid #ddd;
  padding: 0.4rem 0.6rem;
  text-align: left;
  font-size: 0.9rem;
}