/* Colors */
:root {
  --c-accent: #b51f24;
  --c-bg: #ffffff;
  --c-subtle: #c7c7c7;
  --c-subtle-bg: #f9f9f9;
  --c-text: #333333;
  --f-base: museo, -apple-system, system-ui, sans-serif;
  --f-heading: chunkfive, -apple-system, system-ui, sans-serif;
}

/* Fonts */
@font-face {
  font-family: "museo";
  src: url("/fonts/museosans-300-webfont.woff2") format("woff2");
}

@font-face {
  font-family: "chunkfive";
  src: url("/fonts/chunkfive-regular-webfont.woff2") format("woff2");
}

/* Global stylesheet */
* {
  box-sizing: border-box;
}

html,
body {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-color: var(--c-bg);
  color: var(--c-text);
  font-family: var(--f-base);
  font-weight: 400;
  line-height: 1.5;
  margin: 0;
  padding: 0;
}

h1,
h2,
h3,
h4,
h5 {
  color: var(--c-accent);
  font-family: var(--f-heading);
  font-weight: 400;
  line-height: 1.25;
}

h2 {
  font-size: 3rem;
  margin: 1rem 0;
}

a {
  color: var(--c-accent);
  font-weight: 700;
  text-decoration: none;
}

main {
  padding: 0 1rem 1rem 1rem;
}

img {
  max-width: 100%;
}

/* ----- Utilities */

/* Align */
.ai-c {
  align-items: center;
}

/* Display */
.d-b {
  display: block;
}

.d-f {
  display: flex;
}

.d-f-center {
  align-items: center;
  display: flex;
  justify-content: center;
}

/* Flex */
.fw-w {
  flex-wrap: wrap;
}

/* Justify */
.jc-c {
  justify-content: center;
}

/* Margin */
.mb-8 {
  margin-bottom: 2rem;
}

.mr-2 {
  margin-right: 0.5rem;
}

.mx-auto {
  margin-left: auto;
  margin-right: auto;
}

/* Padding */
.p-4 {
  padding: 1rem;
}

.px-4 {
  padding-left: 1rem;
  padding-right: 1rem;
}

/* Text Align */
.ta-c {
  text-align: center;
}

/* ----- Figcaption */
figcaption {
  max-width: 640px;
}

/* ----- Speaker */
.speaker {
  max-width: 600px;
  padding: 1rem;
}

.speaker h3 {
  font-size: 1.75rem;
  margin: 0.5rem 0 0.25rem 0;
}

.speaker h4 {
  font-size: 1.5rem;
  margin: 1rem 0 0.25rem 0;
}

.speaker p {
  margin-top: 0;
}

.speaker .images {
  align-items: flex-end;
  display: flex;
}

/* ----- Sponsors */
.sponsors {
  align-items: flex-start;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  list-style: none;
  margin: 0 auto;
  padding: 0;
}

.sponsors li {
  padding: 2rem;
  max-width: 300px;
}

.sponsors p {
  margin-top: 1rem;
}

.sponsors img {
  display: block;
  margin: 0 auto;
}

/* ----- Titles */
.year {
  font-size: 6rem;
  margin: 1rem;
}

/* ----- Vimeo */
.vimeo-container {
  max-width: 830px;
}

.vimeo {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 */
  height: 0;
}

.vimeo iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

@media screen and (min-width: 1200px) {
  .year {
    font-size: 8rem;
  }

  h2 {
    font-size: 5rem;
    margin-top: 4rem;
  }

  .speakers-minimal .speaker,
  .sponsors li {
    width: 25%;
  }

  .speaker {
    padding: 2rem;
  }

  .ml-4\@lg {
    margin-left: 1rem;
  }
}