body, html {
    height: 100%;
    margin: 0;
    font-family: 'Poppins', sans-serif;
    background: #121212;
    color: #f0f0f0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px;
}

.container {
    background: #1e1e1e;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    width: 100%;
    max-width: 500px;
    text-align: center;
    display: flex;             
    flex-direction: column;     
    align-items: center;       
    justify-content: center;    
}

form {
    width: 100%;                
}

input[type="text"],
input[type="password"],
input[type="hidden"] {
    width: 100%;
    max-width: 100%;       
    box-sizing: border-box;
    padding: 1rem;
    margin: 1rem 0;
    border-radius: 8px;
    border: 1px solid #333;
    background: #222;
    color: #eee;
    font-size: 1.1rem;
}


button {
    background: #2D9CDB;
    color: white;
    padding: 1rem 1.5rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
    font-size: 1.1rem;
}

button:hover {
    background: #1B7DB6;
}

h2 {
    margin-top: 0;
    font-size: 1.5rem;
}

.error-msg {
    color: #ff4d4d;
    font-weight: bold;
    font-size: 1rem;
}

@media (max-width: 600px) {
    .container {
        width: 95%;
        padding: 1.5rem;
    }

    h2 {
        font-size: 1.3rem;
    }

    button, input {
        font-size: 1rem;
    }
}