/* Conteneur principal avec 3 colonnes */
.container {
    display: grid;
    grid-template-columns: 200px 1fr 300px; /* sidebar | contenu | pub */
    gap: 2rem;
    padding: 2rem;
}

/* Responsive : masquer la pub sur petits écrans, empiler */
@media (max-width: 900px) {
    .container {
        grid-template-columns: 200px 1fr;
        gap: 1rem;
        padding: 1rem;
    }

    .sidebar-right {
        display: none; /* Cacher la pub sur mobile */
    }
}

@media (max-width: 600px) {
    .container {
        grid-template-columns: 1fr;
        padding: 1rem;
    }

    .sidebar {
        order: -1;
        width: 100%;
        margin-bottom: 1rem;
    }

    main.calculator {
        width: 100%;
    }
}

/* Formulaire dans un conteneur stylisé */
.form-container {
    background-color: #FFF8E6; /* Fond jaune clair */
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid #FF8000;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    max-width: 500px;
    margin: 0 auto;
}

.calculator h2 {
    color: #FB4C06;
    text-align: center;
    font-size: 1.6rem;
    margin-bottom: 1.5rem;
}

.calculator label {
    font-weight: bold;
    color: #333;
    display: block;
    margin: 1rem 0 0.5rem;
}

.calculator input[type="number"] {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid #FF8000;
    border-radius: 6px;
    font-size: 1rem;
    background-color: white;
}

.calculator input[type="number"]:focus {
    outline: none;
    border-color: #FB4C06;
    box-shadow: 0 0 8px rgba(251, 76, 6, 0.2);
}

.calculator button {
    background-color: #FF8000;
    color: white;
    border: none;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    border-radius: 8px;
    margin-top: 1.5rem;
    width: 100%;
    transition: background-color 0.3s ease;
}

.calculator button:hover {
    background-color: #FB4C06;
}

#result {
    margin-top: 2rem;
    font-size: 1.3rem;
    color: #FB4C06;
    text-align: center;
    font-weight: bold;
    padding: 1rem;
    background-color: #FFF8E6;
    border-left: 5px solid #FF8000;
    border-radius: 6px;
}