@import url('https://fonts.googleapis.com/css2?family=Dosis:wght@200;300;600;800&display=swap');

:root {
    --dark-gray: #636b6f;
    --mediumdark-gray: #969C9F;
    --mediumlight-gray: #C8CCCF;
    --light-gray: #fbfdff;
}

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

html, body {
    background-color: var(--light-gray);
    color: var(--dark-gray);
    font-family: 'Dosis', sans-serif;
    font-weight: 300;
    font-size: 1.2rem;
    height: 100vh;
    margin: 0;
}

a {
    color: var(--dark-gray);
    text-decoration: underline;
    text-decoration-color: var(--mediumlight-gray);
}
@media only screen and (max-width: 600px) {
    html, body {
        font-size: 1rem;
    }
}
@media only screen and (max-width: 400px) {
    html, body {
        font-size: .8rem;
    }
}

/* Layout */
.wrapper {
    position: relative;
    min-height: 100vh;
    width: 100vw;
    overflow: auto;
    display: flex;
    justify-content: center;
    align-items: center;
}
.wrapper.dark {
    padding: 5rem 0;

    background: var(--dark-gray);
    color: var(--light-gray);
}
.wrapper.dark a {
    color: var(--light-gray);
    text-decoration: underline;
    text-decoration-color: var(--mediumdark-gray);
}
.container {
    max-width: 30rem;
    margin: 1.6rem auto;
    padding: 0 0.8rem;
}

/* Header */
.header {
    display: flex;
    justify-content: center;
    margin: -1.3rem 0 1.6rem;

    font-family: 'Dosis', sans-serif;
    font-weight: 200;
    font-size: .8rem;
    text-align: center;
}
.header h1 {
    margin: 0 0 -0.8rem;

    font-weight: 800;
    font-size: 5rem;
    letter-spacing: .1rem;
}
@media only screen and (max-width: 600px) {
    .header {
        margin-top: -2rem;
    }
}

/* Temperature */
.temperature {
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: 1.6rem;
    margin: 0 0 1.6rem;

    font-family: 'Dosis', sans-serif;
    font-weight: 600;
    font-size: 3.4rem;
}
.temperature div {
    text-align: center;
}

/* Weather icons */
.icons {
    display: flex;
    margin: 0 0 0.4rem;
}
.icon {
    text-align: center;
    flex-grow: 1;
}
.icon img {
    min-width: 7.5rem;
    opacity: .6;
}
@media only screen and (max-width: 400px) {
    .icons {
        font-size: 1.2rem;
    }
}

/* Forecast */
.forecast {
    margin: 0;

    text-align: center;
    font-size: 1.7rem;
}

/* Detailed weather data */
.weather-data {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-column-gap: 4rem;
    grid-row-gap: .5rem;
    margin: 0;
}
.weather-data::before {
    content: '';
    display: block;
    position: absolute;
    width: 2px;
    min-height: 100%;
    background: var(--mediumdark-gray);
    margin-left: 100%;
    left: -50%;
    top: -2rem;
    bottom: -2rem;
    opacity: .2;
}
.weather-data div:nth-child(odd) {
    text-align: right;
}
.weather-data div:nth-child(even) {
    text-align: left;
}
.weather-data .unit {
    font-weight: 200;
    opacity: .5;
}
@media only screen and (max-width: 400px) {
    .weather-data {
        font-size: 1.4rem;
    }
}

/* Icon links */
.link {
    margin-top: 4rem;
    text-align: center;
}
.link a {
    color: var(--mediumlight-gray);
    text-decoration: none;
}
.wrapper.dark .link a {
    color: var(--mediumdark-gray);
}
.link .icon {
    fill: var(--mediumlight-gray);
    width: 4rem;
    height: 4rem;
}
.wrapper.dark .link .icon {
    fill: var(--mediumdark-gray);
}

/* Charts */
.chart {
    margin: 4rem 0;

    text-align: center;
}
.chart h2 {
    font-weight: 300;
}

/* Footer */
.footer {
    position: absolute;
    display: block;

    bottom: .5rem;
    left: 0;
    right: 0;

    text-align: center;
}
.footer a {
    font-size: .6rem;
    color: var(--mediumdark-gray);
    text-decoration: none;
}

/* Scroll hint */
.scroll {
    position: fixed;
    display: block;
    right: 0;
    bottom: 0;
    left: 0;
    height: 2.5rem;

    opacity: .3;
    visibility: visible;
    transition-property: opacity;
    transition-delay: 3s;
    transition-duration: 1s;
    transition-timing-function: ease-in-out;
}
.scroll.hidden {
    opacity: 0;
    visibility: hidden;
    transition-delay: 0s;
    transition-duration: .2s;
    transition-timing-function: ease-out;
}
.chevron {
    display: block;
    height: 1.6rem;
    width: 1.6rem;
    margin: auto;
    fill: var(--foreground-color);
}

/* Colors */
.red    { color: rgb(210, 50, 0); }
.orange { color: rgb(220, 110, 0); }
.yellow { color: rgb(240, 190, 0); }
.blue   { color: rgb(0, 100, 210); }