html, body {
    height: 100%;
}

body {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f8f9fa;
}

.login-card {
    width: 100%;
    max-width: 400px;
    border-radius: 15px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.login-card .card-header {
    background-color: #fff;
    border-bottom: 0;
    text-align: center;
    padding-top: 40px;
    padding-bottom: 20px;
}

.login-logo {
    width: 100px;
    height: 100px;
}

.form-signin {
    padding: 20px;
}

.form-label-group {
    position: relative;
    margin-bottom: 1.5rem;
}

.form-label-group > input,
.form-label-group > label {
    height: 50px;
    padding: 12px;
}

.form-label-group > label {
    position: absolute;
    top: 0;
    left: 0;
    display: block;
    width: 100%;
    margin-bottom: 0;
    line-height: 1.5;
    color: #495057;
    pointer-events: none;
    cursor: text;
    border: 1px solid transparent;
    border-radius: .25rem;
    transition: all .1s ease-in-out;
}

.form-label-group input:not(:placeholder-shown) ~ label {
    font-size: 80%;
    transform: translateY(-20px);
    color: #777;
}

.form-label-group input:focus ~ label {
    font-size: 80%;
    transform: translateY(-20px);
    color: #007bff;
}