@font-face {
  font-family: "Raleway";
  src: url("/assets/fonts/raleway-regular.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "Raleway";
  src: url("/assets/fonts/raleway-medium.woff2") format("woff2");
  font-weight: 500;
  font-display: swap;
}

@font-face {
  font-family: "Raleway";
  src: url("/assets/fonts/raleway-semibold.woff2") format("woff2");
  font-weight: 600;
  font-display: swap;
}

@font-face {
  font-family: "Raleway";
  src: url("/assets/fonts/raleway-bold.woff2") format("woff2");
  font-weight: 700;
  font-display: swap;
}

@font-face {
  font-family: "DM Sans";
  src: url("/assets/fonts/dm-sans-regular.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "DM Sans";
  src: url("/assets/fonts/dm-sans-medium.woff2") format("woff2");
  font-weight: 500;
  font-display: swap;
}

@font-face {
  font-family: "DM Sans";
  src: url("/assets/fonts/dm-sans-bold.woff2") format("woff2");
  font-weight: 700;
  font-display: swap;
}

:root {
  --background: #f0f5f8;
  --ink: #0c272f;
  --accent: #0693e3;
  --content-width: 860px;
  --wide-width: 1328px;
  --gutter: min(5vw, 56px);
  --space: 2rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--background);
  color: var(--ink);
  font-family: "Raleway", sans-serif;
  font-size: clamp(1.0625rem, 0.78rem + 0.7vw, 1.5rem);
  line-height: 1.5;
}

body.menu-open {
  overflow: hidden;
}

a {
  color: inherit;
  text-underline-offset: 0.12em;
}

a:hover,
a:focus-visible {
  color: var(--accent);
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

button,
input,
textarea,
select {
  font: inherit;
}

h1,
h2,
h3,
h4,
p,
figure,
ul,
ol {
  margin-top: 0;
}

h1,
h2,
h3,
h4 {
  font-family: "DM Sans", sans-serif;
  font-weight: 500;
  line-height: 1.1;
}

.skip-link {
  position: fixed;
  top: 0.5rem;
  left: 0.5rem;
  z-index: 1000;
  padding: 0.5rem 0.75rem;
  background: var(--ink);
  color: var(--background);
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: none;
}

.site-header,
.site-footer {
  width: min(var(--wide-width), calc(100% - 2 * var(--gutter)));
  margin-inline: auto;
}

.site-header__inner {
  min-height: 64px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem 2rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 2rem;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
}

.brand:hover,
.brand:focus-visible {
  color: var(--ink);
}

.brand__logo {
  width: 64px;
  height: 64px;
  object-fit: contain;
}

.brand__name {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  line-height: 1.15;
  text-transform: uppercase;
}

.site-nav {
  margin-left: 0;
}

.site-nav__list,
.submenu {
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: 1.4rem;
}

.site-nav a,
.submenu-button {
  color: var(--ink);
  font-size: 1.0625rem;
  line-height: 1.6;
  text-decoration: none;
  text-transform: uppercase;
}

.site-nav a[aria-current="page"],
.nav-group.is-active > .submenu-button {
  font-weight: 600;
}

.submenu-button,
.menu-button,
.menu-close {
  border: 0;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
}

.submenu-button {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0;
}

.nav-group {
  position: relative;
}

.submenu {
  position: absolute;
  top: 100%;
  left: -1rem;
  z-index: 20;
  width: 215px;
  padding-block: 0.35rem;
  background: var(--background);
  opacity: 0;
  visibility: hidden;
  transform: translateY(0.35rem);
  transition: opacity 120ms ease, transform 120ms ease, visibility 120ms;
}

.submenu a {
  display: block;
  padding: 0.4rem 1rem;
  text-transform: none;
}

.nav-group:hover > .submenu,
.nav-group:focus-within > .submenu,
.nav-group.is-open > .submenu {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.menu-button,
.menu-close {
  display: none;
}

.page-content {
  width: min(var(--content-width), calc(100% - 2 * var(--gutter)));
  min-height: 55vh;
  margin: 0 auto 5rem;
}

.page-content > * + * {
  margin-top: var(--space);
}

.page-title {
  margin-bottom: 2.5rem;
  font-size: clamp(3.125rem, 2rem + 3vw, 4.5rem);
  text-align: center;
}

.section-title {
  font-size: clamp(2.25rem, 1.35rem + 2.4vw, 3.75rem);
}

.section {
  text-align: center;
}

.section > * + * {
  margin-top: var(--space);
}

.centered,
.centered-section,
.button-row {
  text-align: center;
}

.centered-section {
  margin-inline: auto;
}

.narrow {
  max-width: 680px;
  margin-inline: auto;
}

.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space);
  align-items: start;
}

.intro-grid .page-title {
  margin: 0;
  text-align: left;
}

.intro-grid > p {
  margin-top: 2rem;
}

.notice,
.button {
  display: inline-block;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--background);
  text-decoration: none;
}

.notice {
  display: block;
  max-width: 735px;
  margin-inline: auto;
  padding: 0.75rem 1.75rem;
  text-align: center;
  font-size: 1rem;
}

.button {
  padding: 0.62rem 1.3rem;
}

.button:hover,
.button:focus-visible {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

.button--rounded {
  border-radius: 999px;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}

.full-image {
  width: 100%;
  max-height: 900px;
  margin-inline: auto;
  object-fit: contain;
}

.full-image--wide,
.page-home > .page-content > .full-image:first-of-type {
  width: min(var(--wide-width), calc(100vw - 2 * var(--gutter)));
  max-width: none;
  margin-left: 50%;
  transform: translateX(-50%);
}

.divider {
  width: 100px;
  margin-block: 3rem;
  border: 0;
  border-top: 1px solid currentColor;
  opacity: 0.45;
}

.responsive-embed {
  position: relative;
  overflow: hidden;
  width: 100%;
  aspect-ratio: 16 / 9;
}

.responsive-embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.media-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: clamp(2rem, 6vw, 6rem);
}

.media-row--reverse > img,
.media-row--reverse > figure {
  order: 2;
}

.media-row .section-title {
  margin-bottom: 1.5rem;
}

.media-row > img {
  width: 100%;
  max-height: 720px;
  object-fit: contain;
}

.media-row--compact-image {
  grid-template-columns: minmax(260px, 32%) 1fr;
}

.page-about-history .media-row,
.page-teams-mechanical .media-row,
.page-teams-software .media-row,
.page-teams-non-technical .media-row {
  width: min(var(--wide-width), calc(100vw - 2 * var(--gutter)));
  margin-left: 50%;
  transform: translateX(-50%);
}

.image-caption {
  margin-top: 0.5rem;
  font-size: 0.82rem;
  text-align: center;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 2rem;
}

.card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.card h3 {
  margin-top: 1rem;
  font-size: 1.35rem;
}

.people-grid {
  width: min(var(--wide-width), calc(100vw - 2 * var(--gutter)));
  margin-left: 50%;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 3rem 2rem;
  transform: translateX(-50%);
}

.person-card {
  text-align: center;
}

.person-card__photo {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 50%;
  object-fit: cover;
}

.person-card h2 {
  margin: 1.35rem 0 0.2rem;
  font-family: "Raleway", sans-serif;
  font-size: 1.35rem;
  font-weight: 700;
}

.person-card__role {
  font-weight: 600;
}

.person-card > p:last-child {
  font-size: 1rem;
}

.sponsor-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: center;
  gap: 2rem;
}

.page-sponsors .page-title {
  font-size: 2.25rem;
  white-space: nowrap;
}

.page-sponsors .section-title {
  font-size: 2.25rem;
}

.sponsor-card {
  display: grid;
  min-height: 110px;
  padding: 0.5rem;
  place-items: center;
}

.sponsor-card img {
  width: 100%;
  max-height: 140px;
  object-fit: contain;
}

.sponsor-card:last-child {
  grid-column: 3;
}

.action-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2rem;
  text-align: center;
}

.faq-list details {
  border-top: 1px solid rgba(12, 39, 47, 0.35);
  padding-block: 1.2rem;
  text-align: left;
}

.faq-list details:last-child {
  border-bottom: 1px solid rgba(12, 39, 47, 0.35);
}

.faq-list summary {
  cursor: pointer;
}

.faq-list details > *:not(summary) {
  margin-top: 1rem;
}

.timeline-grid {
  display: grid;
  gap: 1.5rem;
}

.timeline-card {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
}

.timeline-card th,
.timeline-card td {
  width: 50%;
  padding: 1.25rem;
  border: 1px solid var(--ink);
  vertical-align: top;
}

.timeline-card th {
  font-size: 1.25rem;
}

.carousel {
  position: relative;
  overflow: hidden;
}

.carousel-track {
  display: flex;
  transition: transform 300ms ease;
}

.carousel-slide {
  flex: 0 0 100%;
  margin: 0;
}

.carousel-slide img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: contain;
}

.carousel-controls {
  display: flex;
  justify-content: space-between;
  position: absolute;
  inset: 50% 0 auto;
  padding-inline: 0.2rem;
  transform: translateY(-50%);
  pointer-events: none;
}

.carousel-controls button {
  width: 2rem;
  height: 2rem;
  border: 0;
  border-radius: 4px;
  background: rgba(240, 245, 248, 0.75);
  color: var(--ink);
  cursor: pointer;
  line-height: 1;
  pointer-events: auto;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  padding-block: 2.5rem;
  border-top: 1px solid rgba(12, 39, 47, 0.25);
  font-size: 1rem;
}

.site-footer p {
  margin: 0;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
}

@media (max-width: 1100px) {
  .people-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .menu-button {
    display: inline-flex;
    padding: 0.15rem 0.45rem;
    border: 1px solid var(--ink);
    border-radius: 3px;
    font-size: 0.875rem;
  }

  .site-nav {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: none;
    overflow-y: auto;
    margin: 0;
    padding: 5rem var(--gutter) 2rem;
    background: var(--background);
  }

  .site-nav.is-open {
    display: block;
  }

  .menu-close {
    display: block;
    position: absolute;
    top: 1rem;
    right: var(--gutter);
    font-size: 2.2rem;
    line-height: 1;
  }

  .site-nav__list {
    display: grid;
    gap: 1.35rem;
  }

  .site-nav a,
  .submenu-button {
    font-size: 1.25rem;
  }

  .submenu {
    position: static;
    width: auto;
    padding: 0.6rem 0 0 1rem;
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .submenu a {
    padding: 0.25rem 0;
    font-size: 1rem;
  }
}

@media (max-width: 600px) {
  :root {
    --gutter: 20px;
    --space: 1.5rem;
  }

  body {
    line-height: 1.5;
  }

  .site-header__inner {
    gap: 1rem 2rem;
  }

  .brand {
    gap: 2rem;
  }

  .brand__name {
    font-size: clamp(1.15rem, 6vw, 1.5rem);
  }

  .menu-button {
    flex-basis: auto;
  }

  .page-content {
    margin-top: 0.5rem;
  }

  .page-title {
    margin-bottom: 2rem;
  }

  .intro-grid,
  .media-row,
  .media-row--compact-image,
  .action-grid,
  .card-grid {
    grid-template-columns: 1fr;
  }

  .intro-grid {
    gap: 4rem;
  }

  .intro-grid > p {
    margin-top: 0;
  }

  .intro-grid .page-title {
    font-size: 4.375rem;
  }

  .media-row--reverse > img,
  .media-row--reverse > figure {
    order: 0;
  }

  .page-about-history .media-row,
  .page-teams-mechanical .media-row,
  .page-teams-software .media-row,
  .page-teams-non-technical .media-row {
    width: 100%;
    margin-left: 0;
    transform: none;
  }

  .people-grid,
  .sponsor-grid {
    grid-template-columns: 1fr;
  }

  .page-sponsors .page-title {
    white-space: normal;
  }

  .sponsor-card:last-child {
    grid-column: auto;
  }

  .people-grid {
    width: 100%;
    margin-left: 0;
    transform: none;
  }

  .person-card__photo {
    max-width: 330px;
    margin-inline: auto;
  }

  .timeline-card,
  .timeline-card tbody,
  .timeline-card tr,
  .timeline-card th,
  .timeline-card td {
    display: block;
    width: 100%;
  }

  .site-footer {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}