body {
    margin: 0;
    padding: 0;
    background: url("bgedu.jpg") no-repeat;
    background-position: center;
    background-size: cover;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    font-family: 'Arial', sans-serif;
}

.login-box {
    position: relative;
    width: 300px;
    padding: 40px;
    background: rgba(0,0,0,0.8);
    color: white;
    box-shadow: 0 15px 25px rgba(0,0,0,0.5);
    border-radius: 10px;
}

.login-box h2 {
    margin: 0 0 30px;
    padding: 0;
    text-align: center;
}

.user-box {
    position: relative;
    margin-bottom: 30px;
}

.user-box input {
    width: 100%;
    padding: 10px 0;
    background: none;
    border: none;
    border-bottom: 1px solid white;
    color: white;
    font-size: 16px;
}

.user-box label {
    position: absolute;
    top: 0;
    left: 0;
    padding: 10px 0;
    pointer-events: none;
    transition: 0.5s;
}

.user-box input:focus ~ label,
.user-box input:valid ~ label {
    top: -20px;
    left: 0;
    color: #03a9f4;
    font-size: 12px;
}

button {
    background: none;
    border: none;
    color: white;
    padding: 10px 20px;
    cursor: pointer;
    transition: 0.5s;
    position: relative;
    display: inline-block;
    margin-top: 20px;
}

button:after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: #03a9f4;
    transition: 0.5s;
    z-index: -1;
}

button:hover:after {
    left: 0;
}

button:hover {
    background: #03a9f4;
    color: white;
}