body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f9;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}
.container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}
.login-box {
    background: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    text-align: center;
}
.login-box h2 {
    margin-bottom: 10px;
    color: #333;
}
.login-box p {
    color: #666;
    margin-bottom: 20px;
    font-size: 0.9em;
}
input {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-sizing: border-box;
}
button {
    width: 100%;
    padding: 10px;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
}
button:hover {
    background-color: #0056b3;
}
.contact-section {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}
.whatsapp-btn {
    display: inline-block;
    background-color: #25D366;
    color: white;
    text-decoration: none;
    padding: 10px 15px;
    border-radius: 5px;
    margin-top: 10px;
    font-weight: bold;
}
.whatsapp-btn:hover {
    background-color: #128C7E;
}   

.input-group input {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    transition: border-color 0.3s;
}

.input-group input:focus {
    border-color: #4a90e2;
    outline: none;
}

.login-btn {
    width: 100%;
    padding: 0.8rem;
    background: #4a90e2;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    transition: background 0.3s;
}

.login-btn:hover {
    background: #3a80d2;
}

.register-link {
    text-align: center;
    margin-top: 1rem;
    font-size: 0.9rem;
}

.register-link a {
    color: #4a90e2;
    text-decoration: none;
}