* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --mainColor: #152569;
    --secondColor: #4580b7;
    --mainTransition: all 1s ease;
    --main-shadow: 0 0 3px gray;
}

body {
    background: var(--mainColor);
}

.container {
    width: 90%;
    margin: 0 auto;
}

.login-page {
    border-radius: 5px;
    background: white;
    margin: 100px 0;
    display: flex;
    flex-direction: column;
}

.logo {
    margin: 40px 0;
    text-align: center;
}

.logo img {
    width: 150px;
    border-radius: 5px;
}


/* section form */

.form {
    padding: 30px 10px;
}

.form #email,
.form #pwd {
    box-shadow: var(--main-shadow);
    font-size: 18px;
    color: var(--mainColor);
}

.form #email::placeholder,
.form #pwd::placeholder {
    color: var(--mainColor);
    font-size: 18px;
}

.form-check {
    color: var(--mainColor);
    font-weight: 500;
    padding-bottom: 8px;
}

.last {
    margin-bottom: 10px;
}

.btn {
    background: var(--secondColor);
    color: white;
    transition: var(--mainTransition);
    letter-spacing: 1px;
    box-shadow: var(--main-shadow);
}

.btn:hover {
    color: white;
    opacity: 0.8;
}

@media only screen and (min-width: 500px) {
    .login-page {
        margin: 100px 0;
        padding-top: 50px;
        display: flex;
        flex-direction: row;
        justify-content: space-around;
        align-items: center;
    }
    .logo img {
        width: 200px;
        border-radius: 5px;
    }
    .form {
        flex: 0 0 50%;
    }
    input[type="password"] {
        margin-bottom: 40px;
    }
    .last {
        margin-bottom: 40px;
    }
    .btn {
        padding: 8px 25px;
        font-size: 15px;
    }
}

@media only screen and (min-width: 800px) {
    .container {
        width: 60%;
    }
    .logo img {
        width: 250px;
        border-radius: 5px;
    }
    .btn {
        padding: 8px 25px;
        font-size: 20px;
    }
}