* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

body {
    background: linear-gradient(135deg, #0d47a1, #b71c1c);
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.container {
    width: 100%;
    padding: 20px;
}

.login-box {
    background: white;
    padding: 25px;
    border-radius: 10px;
    max-width: 400px;
    margin: auto;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

h2 {
    text-align: center;
    color: #0d47a1;
    margin-bottom: 20px;
}

input {
    width: 100%;
    padding: 12px;
    margin-bottom: 15px;
    border: 1px solid #ccc;
    border-radius: 6px;
}

button {
    width: 100%;
    padding: 12px;
    background: #b71c1c;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
}

button:hover {
    background: #d32f2f;
}

#msg {
    text-align: center;
    margin-top: 10px;
    color: red;
}

/* Responsivo */
@media (max-width: 600px) {
    .login-box {
        padding: 20px;
    }
}