body {
    font-family: 'Arial', sans-serif;
    color: #333;
}

.navbar {
    box-shadow: 0 2px 4px rgba(0,0,0,.1);
}

.navbar-brand {
    font-weight: bold;
    font-size: 1.5rem;
}
.form-popup {
  display: none;
  position: fixed;
  bottom: 0;
  right: 15px;
  border: 3px solid #f1f1f1;
  z-index: 9;
}

h1, h3 {
    color: #ffffff;
}
h2, h3 {
    color: #225a25;
}

.card {
    transition: transform 0.3s;
    box-shadow: 0 4px 6px rgba(0,0,0,.1);
}

.card:hover {
    transform: translateY(-5px);
}

.btn-success {
    background-color: #2e7d32;
    border-color: #2e7d32;
}

.btn-success:hover {
    background-color: #1b5e20;
    border-color: #1b5e20;
}

#apropos {
    background-color: #e8f5e9;
}

footer {
    margin-top: 2rem;
}