#calculateur-wrapper {
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background: #fff;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    max-width: 900px;
    margin: 20px auto;
}

.trajet-container {
    background: #f8f9fa;
    border-left: 5px solid #0073aa;
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 4px;
}

.trajet-container h3 {
    margin-top: 0;
    color: #333;
    font-size: 1.1em;
    margin-bottom: 15px;
}

.select-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.select-group select {
    width: 100%;
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 13px;
}

/* L'école prend toute la largeur */
.select-group select:last-child {
    grid-column: 1 / -1;
    font-weight: bold;
    border-color: #0073aa;
}

#actions-calcul {
    text-align: center;
    margin: 20px 0;
}

#btn-calculer {
    background: #0073aa;
    color: white;
    border: none;
    padding: 15px 40px;
    font-size: 16px;
    font-weight: bold;
    border-radius: 5px;
    cursor: pointer;
}

#btn-calculer:disabled { background: #ccc; }

.ecole-stats-v5 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    background: #f1f7fa;
    padding: 15px;
    border-radius: 8px;
    margin: 20px 0;
    border: 1px solid #c3d9e6;
}

.stat-item { text-align: center; font-size: 13px; }
.stat-item b { display: block; font-size: 18px; color: #0073aa; }
.stat-item.total b { color: #28a745; }

.ecole-tools { display: flex; gap: 10px; }
.ecole-tools button {
    flex: 1;
    padding: 12px;
    border: none;
    border-radius: 4px;
    font-weight: bold;
    cursor: pointer;
}

#btn-pdf { background: #28a745; color: white; }

@media (max-width: 600px) {
    .select-group, .ecole-stats-v5 { grid-template-columns: 1fr; }
}