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

header {
    background: #333;
    color: #fff;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header a {
    color: #fff;
    text-decoration: none;
}

.container {
    width: 90%;
    max-width: 900px;
    margin: 30px auto;
    background: #fff;
    padding: 25px;
    border-radius: 8px;
}

h2 {
    margin-top: 0;
}

.order-table {
    width: 100%;
    border-collapse: collapse;
}

.order-table th,
.order-table td {
    border: 1px solid #ddd;
    padding: 10px;
}

.order-table th {
    background: #eee;
}

button, select, input[type="text"], input[type="email"], input[type="password"], input[type="file"] {
    width: 100%;
    padding: 10px;
    margin: 8px 0 15px;
    border: 1px solid #ccc;
    border-radius: 5px;
    box-sizing: border-box; /* ← これを追加 */
}



button {
    background: #007bff;
    color: #fff;
    cursor: pointer;
}

button:hover {
    background: #0056b3;
}

.login-container {
    width: 350px;
    margin: 100px auto;
    background: #fff;
    padding: 25px;
    border-radius: 8px;
}

.error {
    color: red;
    margin-bottom: 10px;
}