/* ✅ 基本樣式 */
body {
    font-family: Arial, sans-serif;
    background-color: #f4f7f6;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

/* ✅ 主要內容區塊 */
.container {
    background-color: white;
    padding: 30px;
    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.1);
    border-radius: 10px;
    width: 350px;
    text-align: center;
}

/* ✅ 標題 */
h2 {
    color: #333;
}

/* ✅ 輸入框 */
input[type="email"], input[type="password"] {
    width: 90%;
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #ccc;
    border-radius: 5px;
}

/* ✅ 按鈕樣式 */
button {
    background-color: #4CAF50;
    color: white;
    padding: 10px 15px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    width: 100%;
    font-size: 16px;
    margin-top: 10px;
}

button:hover {
    background-color: #45a049;
}

/* ✅ 訊息樣式 */
.success-message {
    color: green;
    font-size: 14px;
    margin-top: 10px;
}

.error-message {
    color: red;
    font-size: 14px;
    margin-top: 10px;
}

/* ✅ 返回登入連結 */
.back-link {
    display: block;
    margin-top: 15px;
    text-decoration: none;
    color: #3498db;
}

.back-link:hover {
    text-decoration: underline;
}