body { 
    font-family: Arial, sans-serif; 
    margin:0; 
    padding:0; 
    background:#f5f5f5;
}


.liste-plans {
	align-content: center;
    border-radius: 25px;
    border: 1px solid ;
    max-width: 95%;
    margin:  auto; 
    margin-top: 10px;  
    margin-bottom: 10px;
    color: #000;
    text-align: center;    
    box-sizing: border-box;
     height: 600px;
    background-image: url('img-copilot/structure-beton.jpg');
    background-size: auto 80%; /* Largeur automatique, hauteur ajustée au cadre */
    background-position: center;
    background-repeat: no-repeat;

}

 .titre-page {
    font-size: 1.7rem;
  }

  .liste-boutons {
  display: flex;
  flex-direction: column;
  gap: 15px;
  margin-bottom: 40px;
  align-items: center;   /* centre les boutons horizontalement */
  
}

.btn-orange {
  display: inline-block;
    padding: 10px 22px;
    border-radius: 10px;
    border: solid 1px;
    background: linear-gradient(
      to bottom,
      #0077FF, /* Bleu azur profond */
      #3399FF, /* Bleu azur */
      #66BFFF, /* Bleu ciel */
      #99D8FF, /* Bleu très clair */
      #CCEFFF, /* Bleu pastel */
      #FFFFFF  50%/* Blanc */
);
    color: #000;
    text-decoration: none;
    font-weight: bold;
    border-radius: 25px;
    font-size: 1rem;
}
.btn-orange:hover {
    color: red;
    transform: scale(1.03);
}