body {
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(to right, #00426B, #00ADEF);
    margin: 0;
    padding: 0;
    color: #fff;
}

.container {
    background: #ffffff;
    color: #00426B;
    padding: 2rem;
    border-radius: 10px;
    max-width: 500px;
    margin: 3rem auto;
    box-shadow: 0 0 15px rgba(0,0,0,0.2);
}

h2 {
    text-align: center;
    color: #00426B;
}

form input[type="text"],
form input[type="password"] {
    width: 100%;
    padding: 0.6rem;
    margin: 0.5rem 0;
    border: 1px solid #cccccc;
    border-radius: 5px;
}

form button {
    width: 100%;
    padding: 0.7rem;
    background-color: #00ADEF;
    border: none;
    color: white;
    font-weight: bold;
    border-radius: 5px;
    cursor: pointer;
}

form button:hover {
    background-color: #0079a3;
}

.message {
    margin: 1rem 0;
    padding: 0.7rem;
    border-radius: 5px;
    font-size: 0.95rem;
}

.message.success { background-color: #d4edda; color: #155724; }
.message.danger { background-color: #f8d7da; color: #721c24; }