body {
    font-family: Arial, sans-serif;
    background: #f3f3f3;
    margin: 0;
    padding: 0;
}

#container {
    max-width: 900px;
    margin: auto;
    padding: 20px;
    background: white;
}

#header {
    display: flex;
    align-items: center;
    gap: 20px;
}

#logo {
    height: 70px;
}

.box {
    border: 1px solid #ccc;
    padding: 15px;
    margin-top: 15px;
    background: #fafafa;
}

.box h2 {
    margin-top: 0;
}

label {
    display: block;
    margin-top: 10px;
}

input[type="text"],
input[type="number"] {
    width: 100%;
    padding: 6px;
    margin-top: 5px;
}

.produit {
    display: flex;
    align-items: center;
    border-bottom: 1px solid #ddd;
    padding: 8px 0;
}

.produit span {
    flex: 1;
}

.produit input {
    width: 80px;
}

.totals .line {
    display: flex;
    justify-content: space-between;
    padding: 6px 0;
}

.totalTTC {
    font-weight: bold;
    font-size: 18px;
    border-top: 2px solid black;
    margin-top: 5px;
    padding-top: 10px;
}

button {
    margin-top: 20px;
    width: 100%;
    padding: 12px;
    background: #0078D7;
    border: none;
    color: white;
    font-size: 18px;
}