body {
    background-color: #f4f6f9;
    height: 100vh;
}

.login-card {
    border: none;
    border-radius: 14px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.12);
}

.login-title {
    font-weight: 600;
}

.login-subtitle {
    font-size: 14px;
}

.form-control {
    height: 45px;
}

.captcha-box {
    background-color: #eef2ff;
    border-radius: 8px;
    padding: 10px;
    font-weight: 600;
}

.link-small {
    font-size: 14px;
    text-decoration: none;
}

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