* {
    box-sizing: border-box;
    --header-font: "Nunito Sans", sans-serif;
    --body-font: "Roboto", sans-serif;

    --max-width: 950px;

    --background-color: white;
    --font-color: black;
    font-family: var(--body-font);
}

body {
    background-color: var(--background-color);
    color: var(--font-color);
    margin: 0px;
}

main {
    padding: 25px;
    text-align: center;
    max-width: var(--max-width);
    margin: auto;
    min-height: calc(100vh - 211px);
}

.main-nav {
    display: flex;
    justify-content: center;
    gap: 10px;
    padding-top: 25px;
}

.logo {
    width: 120px;
    margin-top: 40px
}

.main-quote {
    max-width: 400px;
    margin: 80px auto;
    text-align: center;

    blockquote {
        margin-left: 0;
        margin-right: 0;
        margin-bottom: 40px;
        text-align: justify;
        position: relative
        font-size: 14px;
    }
    b {
        margin-top: 1em;
        display: inline-block;
    }

   cite {
    font-size: 12px;
    text-align: center;
    display: inline-block;
    margin: auto;
   }

    a.btn {
        width: 190px;
        margin: 60px auto 0;;
    }

    .small-divider {
        margin-top: 60px;
    }
}

.main-photo {
    width: 100%;
    margin: 0 0 80px 0;

    img {
        width: 100%;
        margin-bottom: 60px;
    }

    .small-divider {
        margin-top: 50px;
    }

}

h1 {
    font-family: var(--header-font);
    text-transform: uppercase;
    font-size: 50px;
    line-height: 1.2em;
}

p {
    font-family: var(--body-font);
    font-size: 14px;
}

.newsletter-container {
    border-left: 1px solid var(--font-color);
    border-bottom: 1px solid var(--font-color);
    border-right: 1px solid var(--font-color);
    padding: 0 50px 50px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
}

.sr-only {
    visibility: hidden;
    display: block;
    width: 0;
    height: 0;
}


span {
    font-family: var(--body-font);
}

footer {
    display: flex;
    justify-content: space-between;
    border-top: 1px solid var(--font-color);
    margin: 50px auto;
    padding-top: 20px;
    width: 90%;

    .footer-logo {
        width: 60px;
        vertical-align: middle;
        margin-right: 5px;
    }

    .social-links {
        display: flex;
        align-items: center;
        gap: 10px;
    
        img {
            width: 25px;
            height: 25px;
        }
    }

    a.btn {
        display: inline-block;
        vertical-align: middle;
        margin-right: 10px;
    }
}

/* component styles */
input[type="text"],
input[type="email"],
input[type="date"] {
    border: 1px solid var(--font-color);
    background-color: var(--background-color);
    font-family: var(--body-font);
    color: var(--font-color);
    padding: 10px;
    min-width: 350px;
    display: block;
    text-align: center;
    margin: 0 auto 10px;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="number"]:focus,
input[tyep="date"]:focus
textarea:focus {
    outline: 1px dashed var(--font-color);
    outline-offset: -5px;
}

button {
    background-color: var(--background-color);
    color: var(--font-color);
    border-radius: 500px;
    padding: 9px 30px;
    margin: 10px auto 0;
    border-width: 1px;
    border-color: var(--font-color);
    display: block;
    transition: 0.5s ease color, 0.3s ease color, 0.3s ease outline;

    svg {
        display: inline-block;
        vertical-align: middle;
        width: 30px;
        margin-left: 10px;
        transition: 0.5s ease margin;
    }

    line {
        stroke-width: 0.5px;
        stroke: var(--font-color);
        stroke-linecap: round;
    }

    
    &:not(:disabled):hover,
    &:not(:disabled):focus {
        background-color: var(--font-color);
        color: var(--background-color);
        transition: 0.5s ease color, 0.5s ease color, 0.3s ease outline;

        svg {
            margin-left: 30px;
            margin-right: -20px;
            transition: 0.5s ease margin;
        }
        
        line {
            stroke: var(--background-color);
            transition: 0.5s ease stroke, 0.5s ease;
        }
    }

    &:not(:disabled):focus {
        outline: 1px dashed var(--background-color);
        outline-offset: -5px;
    }

    &:disabled {
        opacity: 0.5;
        transition: 0.5 ease opacity;
    }
}

a.btn {
    min-width: 103px;
    display: block;
    border: 1px solid var(--font-color);
    background-color: var(--background-color);
    color: var(--font-color);
    border-radius: 11px;
    padding: 5px 10px;
    text-align: center;
    text-decoration: none;
    transition: 0.3s ease color, 0.3s ease background-color, 0.3s ease border-color;

    &:hover {
        background-color: var(--font-color);
        color: var(--background-color);
    }

    &.active {
        background-color: var(--font-color);
        color: var(--background-color);
    }

    &.active:hover {
        background-color: var(--background-color);
        color: var(--font-color);
    }
}

.small-divider {
    width: 100px;
    height: 1px;
    background: var(--font-color);
    margin-right: auto;
    margin-left: auto;
}

@media screen and (max-width: 768px) {

    .main-nav {
        font-size: 12px;

        a.btn {
            min-width: 91px;
        }
    }

    .main-quote {
        max-width: 250px;
    }

    figcaption,
    span {
        font-size: 12px;
    }

    h1 {
        font-size: 27px;
        margin-bottom: 2em;
    }

    .newsletter-container {
        padding:  0 20px 20px;
        gap: 20px;

        & > div {
            width: 100%;
        }
    }

    input[type="text"],
    input[type="email"] {
        padding: 10px;
        min-width: unset;
        width: 100%;
    }

    footer {
        flex-direction: column-reverse;
        gap: 50px;
        align-items: center;
        margin: 30px auto;
    }
}

@media(prefers-color-scheme: dark) {
    * {
        --background-color: black;
        --font-color: white;
    }


    .logo,
    .social-links img,
    footer img {
        filter: invert(1);
    }

    input[type="date"]::-webkit-calendar-picker-indicator {
        filter: invert(1);
    }
}