:root {
    --back-color: #fafafa;
    --base-color: #555;
    --base-font: "Poppins", sans-serif;
    --button-color: #336699;
}

* {
    box-sizing: border-box;
    font-family: var(--base-font);
    margin: 0;
    padding: 0;
}

html {
    font-size: 14px;
    position: relative;
    min-height: 100%;
}

@media (min-width: 768px) {
    html {
        font-size: 16px;
    }
}


body {
    background: var(--back-color);
    color: var(--base-color);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

button {
    background-color: var(--button-color);
    border: 1px solid #fff;
    border-radius: 5px;
    color: #fff;
    cursor: pointer;
    padding: .25rem .5rem;
}

    button:focus, button:active:focus {
        box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
    }

.header-main {
    display: flex;
    justify-content: center;
    align-items: center;

    & .logo {
        margin-top: 2rem;
        width: 300px;
    }
}


.header-page {
    display: flex;
    justify-content: left;
    align-items: center;

    & .logo {
        margin: 1rem .5rem;
        width: 150px;
    }
}