/* Reset some default styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Body & Page background */
body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #70ff88, #e6d05f); /* 美丽的渐变背景 */
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
    width: 40%;
}

.login-card {
    background-color: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    width: 100%;
    min-width: 400px;
    max-width: 600px;
    text-align: center;
}

.login-title {
    font-size: 28px;
    font-weight: bold;
    color: #333;
    margin-bottom: 20px;
}

.login-switch {
    display: flex;
    justify-content: space-around;
    margin-bottom: 20px;
}

.switch-btn {
    background-color: #2575fc;
    color: white;
    padding: 10px 20px;
    font-size: 16px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.switch-btn:hover {
    background-color: #6a11cb;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.input-group {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.input-group label {
    font-size: 14px;
    color: #555;
    margin-bottom: 5px;
}

.input-group input {
    width: 100%;
    padding: 12px;
    border-radius: 8px;
    border: 1px solid #ddd;
    font-size: 16px;
    transition: border-color 0.3s;
}

.input-group input:focus {
    border-color: #2575fc;
    outline: none;
}
/* 基本按钮样式 */
.role-btn {
    background-color: #2575fc; /* 默认的蓝色背景（学生登录） */
    color: white;
    border: none;
    border-radius: 8px;
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.3s;  /* 背景色平滑过渡，按钮缩放 */
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

/* 按钮悬停效果 */
.role-btn:hover {
    background-color: #6a11cb; /* 悬停时变为深蓝色 */
    transform: scale(1.05); /* 按钮放大效果 */
}

/* 切换到教师登录时的背景色 */
.teacher-login .role-btn {
    background-color: #005848; /* 深蓝色背景（教师登录） */
}

/* 切换到教师登录时的悬停效果 */
.teacher-login .role-btn:hover {
    background-color: #017c6e; 
}
.login-btn {
    background-color: #2575fc;
    color: white;
    padding: 14px;
    font-size: 16px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s;
    width: 100%;
    margin-top: 30px;
    margin-bottom: 30px;

}

.login-btn:hover {
    background-color: #6a11cb;
}

.forgot-password {
    margin-top: 10px;
}

.forgot-password a {
    color: #2575fc;
    font-size: 14px;
    text-decoration: none;
}

.forgot-password a:hover {
    text-decoration: underline;
}

.social-login {
    margin-top: 20px;
}

.social-btn {
    width: 100%;
    padding: 12px;
    margin: 5px 0;
    font-size: 16px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.social-btn.google {
    background-color: #db4437;
    color: white;
}

.social-btn.google:hover {
    background-color: #c1351d;
}

.social-btn.facebook {
    background-color: #3b5998;
    color: white;
}

.social-btn.facebook:hover {
    background-color: #2d4373;
}