body {
  height: 100%;
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;

}

main {
  flex: 1;
}

.container {
    width: 60%;
    height: 50vh;
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}


h1 {
    font-size: 1.7em;
    font-weight: bold;
    text-align: center;
    margin-bottom: 10px;
    color: #2c3e50;
}

.form-control {
    border-radius: 6px;
}


.btn-primary {
    background-color: #1976d2;
    border-color: #1976d2;
    font-weight: 500;
    width: 100%;
    transition: background-color 0.2s ease-in-out;
}

.btn-primary:hover {
    background-color: #1565c0;
    border-color: #1565c0;
}

.text-center {
    font-size: 0.95em;
    margin-top: 20px;
}


.text-danger {
    font-size: 0.9em;
}


@media (width < 768px) {
    body {
        width: 100%;
    }
    .container {
        width: 90%;
        height: auto;
        
    }


    .card-body {
        padding: 1.5rem;
    }

    h1 {
        font-size: 1.5rem;
    }

    .form-label {
        font-size: 1rem;
    }

    input.form-control {
        font-size: 1rem;
        padding: 0.5rem;
    }

    button.btn-primary {
        font-size: 1rem;
        padding: 0.5rem;
    }
}