@import url("https://fonts.googleapis.com/css2?family=Open+Sans&family=Poppins:wght@400;600&display=swap");

:root {
    --violet: hsl(257, 40%, 49%);
    --soft-magenta: hsl(300, 69%, 71%);
    --white: hsl(0, 0%, 100%);
}

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

/* code from https://css-tricks.com/inclusively-hidden/ */
.sr-only:not(:focus):not(:active) {
    clip: rect(0 0 0 0);
    clip-path: inset(50%);
    height: 1px;
    overflow: hidden;
    position: absolute;
    white-space: nowrap;
    width: 1px;
}

ul {
    list-style: none;
}

body {
    min-height: 100vh;
    background: url("./images/bg-mobile.svg") var(--violet);
    background-repeat: no-repeat;
    background-size: contain;

    font-family: "Open Sans", sans-serif;
    color: var(--white);

    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4vh;

    padding: 1rem 0;
}

header,
main,
nav {
    width: 90%;
}

.header-logo {
    width: 38%;
}

header {
    height: 15vh;
    display: flex;
    align-items: center;
    padding-left: 1rem;
}

main {
    display: flex;
    flex-direction: column;
    margin-bottom: auto;
    align-items: center;
}

.main-illustration {
    display: block;
    max-width: 90%;
    margin-bottom: 9vh;
}

.main-text {
    display: flex;
    flex-direction: column;
    text-align: center;
    align-items: center;
    gap: 2vh;
    margin-bottom: 2vh;
    padding: 0 1rem;
}

.main-text h1 {
    font-family: "Poppins", sans-serif;
    font-size: 1.5rem;
}

.main-text p {
    letter-spacing: 0.2px;
    line-height: 1.5rem;
    margin-bottom: 1.5vh;
}

.register-button {
    color: var(--violet);
    border: none;
    background-color: var(--white);
    border-radius: 4vh;
    height: 6vh;
    width: 200px;
    box-shadow: 5px 5px 13px -7px hsla(0, 0%, 0%, 0.9);
    transition: all 0.4s;
}

.register-button:hover,
.register-button:active {
    color: var(--white);
    background-color: var(--soft-magenta);
}

nav ul {
    justify-content: center;
    display: flex;
    flex-direction: row;
    gap: 3.5%;
    text-align: center;
    align-items: center;
}

nav li {
    width: 28px;
    height: 28px;
    border: 1px solid var(--white);
    border-radius: 15px;
    transition: all 0.2s;
    display: flex;
    justify-content: center;
    align-items: center;
}

nav li svg {
    height: 60%;
    fill: var(--white);
    transition: all 0.2s;
}

nav li:hover,
nav li:active {
    border: 1px solid var(--soft-magenta);
    fill: var(--soft-magenta);
}

nav li:hover svg,
nav li:active svg {
    fill: var(--soft-magenta);
}

.attribution {
    font-size: 11px;
    text-align: center;
}

.attribution a {
    color: var(--soft-magenta);
    text-decoration: none;
}

@media screen and (min-width: 900px) {
    body {
        background: url("./images/bg-desktop.svg") var(--violet);
        background-repeat: no-repeat;
        background-size: cover;
        gap: 0;
        max-height: 100vh;
        padding: 1rem;
    }

    header {
        width: 100%;
        margin-bottom: 7vh;
    }

    .header-logo {
        padding-left: 2.5rem;
        width: 18%;
    }

    main {
        align-items: flex-start;
        flex-direction: row;
        margin-bottom: 0;
    }

    .main-illustration {
        max-width: 50vw;
        margin: auto 0;
    }

    .main-text {
        padding: 5vh 0 0 5vh;
        height: 100%;
        align-items: flex-start;
        text-align: left;
        gap: 3.9vh;
    }

    .main-text h1 {
        font-size: 2.5rem;
    }

    .register-button {
        font-size: 1.1rem;
    }

    nav {
        margin-top: auto;
        padding-bottom: 1.5rem;
    }

    nav ul {
        justify-content: flex-end;
        gap: 14px;
    }

    nav li {
        width: 40px;
        height: 40px;
        border: 1px solid var(--white);
        border-radius: 20px;
        transition: all 0.2s;
        display: flex;
        justify-content: center;
        align-items: center;
    }
}