body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: #f4f7f9;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    color: #333;
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.login-form {
    background-color: #ffffff;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s ease-in-out;
}

.login-form:hover {
    transform: translateY(-5px);
}

.login-form h2 {
    margin-top: 0;
    margin-bottom: 10px;
    color: #2c3e50;
    font-weight: 600;
}

.login-form p {
    margin-bottom: 30px;
    color: #7f8c8d;
}

.input-group {
    position: relative;
    margin-bottom: 30px;
}

.input-group input,
.input-group select {
    width: 100%;
    padding: 10px 0;
    border: none;
    border-bottom: 2px solid #dcdcdc;
    background-color: transparent;
    font-size: 16px;
    color: #333;
    transition: border-color 0.3s;
}

.input-group input:focus,
.input-group select:focus {
    outline: none;
    border-bottom-color: #3498db;
}

.input-group label {
    position: absolute;
    top: 10px;
    left: 0;
    font-size: 16px;
    color: #999;
    pointer-events: none;
    transition: all 0.3s ease;
}

.input-group input:focus + label,
.input-group input:valid + label {
    top: -20px;
    font-size: 12px;
    color: #3498db;
}

.g-recaptcha {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

button {
    width: 100%;
    padding: 15px;
    border: none;
    border-radius: 5px;
    background-color: #3498db;
    color: white;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s, box-shadow 0.3s;
}

button:hover {
    background-color: #2980b9;
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.4);
}

.error-message {
    color: #e74c3c;
    margin-top: 15px;
    font-size: 14px;
    height: 20px;
}

@media (max-width: 480px) {
    .login-form {
        padding: 30px;
    }
}