body {
  font-family: -apple-system, "Segoe UI", Arial, sans-serif;
  background: #f4f6f8;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  margin: 0;
}
.carte {
  background: #ffffff;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
  padding: 32px 36px;
  width: 100%;
  max-width: 380px;
}
.carte h1 {
  font-size: 1.3rem;
  margin: 0 0 20px;
  color: #1a2733;
}
.champ {
  margin-bottom: 16px;
}
.champ label {
  display: block;
  font-size: 0.85rem;
  color: #5a6473;
  margin-bottom: 4px;
}
.champ input {
  width: 100%;
  box-sizing: border-box;
  padding: 9px 10px;
  border: 1px solid #ccd2d8;
  border-radius: 5px;
  font-size: 0.95rem;
}
.bouton {
  width: 100%;
  padding: 10px;
  background: #1B8C94;
  color: #ffffff;
  border: none;
  border-radius: 5px;
  font-size: 0.95rem;
  cursor: pointer;
}
.bouton:hover {
  background: #156d73;
}
.message-erreur {
  background: #fdecea;
  color: #9b2226;
  padding: 10px 12px;
  border-radius: 5px;
  font-size: 0.85rem;
  margin-bottom: 16px;
}
.message-succes {
  background: #e8f5e9;
  color: #1b5e20;
  padding: 10px 12px;
  border-radius: 5px;
  font-size: 0.85rem;
  margin-bottom: 16px;
}
.lien-secondaire {
  display: block;
  text-align: center;
  margin-top: 16px;
  font-size: 0.85rem;
}
.lien-secondaire a {
  color: #1B8C94;
}