@import url('https://fonts.googleapis.com/css2?family=Saira:wght@500;600;700;800;900&display=swap');

:root {
  --os-display: "Saira", "Saira Variable", ui-sans-serif, system-ui, sans-serif;
  --os-bg: #050a12;
  --os-bg-2: #0a0e1a;
  --os-panel: #0d1626;
  --os-panel-2: #111827;
  --os-line: rgba(59, 139, 235, 0.22);
  --os-line-soft: rgba(255, 255, 255, 0.08);
  --os-blue: #1e8fff;
  --os-blue-2: #3b8beb;
  --os-gold: #f4b321;
  --os-text: #e8ecf4;
  --os-muted: #9ca8bc;
  --os-light: #f5f7fb;
  --os-light-2: #e8edf5;
}

[data-md-color-scheme="slate"] {
  --md-primary-fg-color: #0b1320;
  --md-primary-fg-color--light: var(--os-blue-2);
  --md-primary-bg-color: #ffffff;
  --md-default-bg-color: var(--os-bg-2);
  --md-default-fg-color: var(--os-text);
  --md-code-bg-color: var(--os-panel-2);
  --md-footer-bg-color: var(--os-bg);
  --md-typeset-a-color: var(--os-blue-2);
  --md-accent-fg-color: var(--os-blue);
}

html {
  scroll-behavior: smooth;
}

body {
  background: linear-gradient(180deg, var(--os-bg) 0%, var(--os-bg-2) 30rem, var(--os-bg-2) 100%);
}

.md-grid {
  max-width: 74rem;
}

.md-header {
  position: relative;
  min-height: 8rem;
  background: rgba(5, 10, 18, 0.94);
  border-bottom: 1px solid var(--os-line);
  box-shadow: none;
  z-index: 4;
}

.md-header__inner {
  column-gap: 1rem;
  min-height: 8rem;
}

.md-header__button.md-logo {
  display: flex;
  order: 0;
  flex-shrink: 0;
  align-items: center;
  width: auto;
  max-width: 15rem;
  height: 8rem;
  margin: 0 0.55rem 0 0;
  padding: 0;
}

.md-header__button.md-logo img,
.md-header__button.md-logo svg {
  width: auto;
  height: 7.6rem;
  max-height: 7.6rem;
  max-width: 18rem;
}

.md-header__title {
  display: none;
  color: #fff;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.md-header__topic:first-child .md-ellipsis {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.md-header__topic:first-child .md-ellipsis::after {
  content: "Open hardware. Open cockpits.";
  margin-top: 0.35rem;
  color: var(--os-muted);
  font-size: 0.48rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

/* Below the desktop-nav breakpoint, Material's hamburger + search are in normal
   flow; push them to the right edge so they don't float mid-header. */
.md-header__button[for="__drawer"] {
  margin-left: auto;
}

.os-header-nav {
  display: none;
}

.md-header__source {
  order: 20;
  flex-shrink: 0;
  margin-left: auto;
  width: auto;
}

.md-source {
  display: inline-flex;
  align-items: center;
  border: 1px solid rgba(30, 143, 255, 0.66);
  border-radius: 4px;
  min-height: 2rem;
  padding: 0 0.7rem;
  background: rgba(30, 143, 255, 0.04);
  box-shadow: inset 0 0 0 1px rgba(30, 143, 255, 0.12);
}

.md-source__icon,
.md-source__facts {
  display: none;
}

.md-source__repository {
  max-width: 6.8rem;
  color: var(--os-blue-2);
  font-size: 0.66rem;
  font-weight: 800;
}

.md-source__repository::after {
  content: "›";
  margin-left: 0.45rem;
  font-size: 0.95rem;
  line-height: 0;
}

/* The search toggle icon is styled in the desktop block (>= 76.25em). Below that,
   Material's default search applies: an inline field on tablet, an overlay on mobile —
   one affordance, no doubled icon. */

.md-search__form {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--os-line-soft);
  border-radius: 4px;
}

.md-search__form:hover,
.md-search__form:focus-within {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--os-line-soft);
}

/* Search visibility/expand is handled in the desktop block (>= 76.25em).
   Below that, Material's default toggle-overlay applies — a single search icon,
   no always-visible mini-form (which previously doubled the icon on tablet). */

.md-tabs {
  background: rgba(5, 10, 18, 0.82);
  border-bottom: 1px solid var(--os-line-soft);
}

.md-tabs__link {
  color: rgba(246, 248, 255, 0.86);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.md-tabs__item--active .md-tabs__link,
.md-tabs__link:hover {
  color: var(--os-blue-2);
}

.md-tabs__item--active .md-tabs__link {
  position: relative;
}

.md-tabs__item--active .md-tabs__link::after {
  content: "";
  position: absolute;
  left: 0.55rem;
  right: 0.55rem;
  bottom: 0.35rem;
  height: 2px;
  background: var(--os-blue);
}

.md-main {
  background: var(--os-bg-2);
}

.md-content__inner {
  padding-top: 0.6rem;
}

.md-typeset h1,
.md-typeset h2,
.md-typeset h3 {
  color: #fff;
  letter-spacing: 0;
}

.md-typeset h1 {
  font-weight: 800;
}

.md-typeset code {
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 4px;
}

.md-typeset table:not([class]) {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--os-line-soft);
  border-radius: 6px;
  overflow: hidden;
}

.md-typeset table:not([class]) th {
  background: rgba(30, 143, 255, 0.12);
  color: #fff;
}

.md-typeset table:not([class]) td,
.md-typeset table:not([class]) th {
  border-color: rgba(255, 255, 255, 0.08);
}

.md-sidebar {
  padding-top: 1.15rem;
}

.md-sidebar__scrollwrap {
  background: transparent;
  border: 0;
}

.md-nav__title,
.md-nav__item .md-nav__link--active {
  color: var(--os-blue);
}

.md-nav__link {
  color: rgba(156, 168, 188, 0.74);
  font-weight: 700;
}

.md-nav__link:hover {
  color: #fff;
}

.md-nav__item--active > .md-nav__link,
.md-nav__item--active > .md-nav__link:hover {
  color: var(--os-blue);
}

.md-nav__item--active > .md-nav__link::before {
  background: var(--os-blue);
}

.md-nav--primary .md-nav__item--active > .md-nav__link {
  position: relative;
}

.md-nav--primary .md-nav__item--active > .md-nav__link::before {
  content: "";
  position: absolute;
  top: 0.25rem;
  bottom: 0.25rem;
  left: -0.75rem;
  width: 0.18rem;
  border-radius: 4px;
}

.md-nav__item--section > .md-nav__link,
.md-nav__item--nested > .md-nav__link {
  font-size: 0.82rem;
}

/* Mobile nav drawer: remove Material's bright source bar behind the "Get Involved"
   pill so it sits cleanly on the drawer background. */
.md-nav--primary .md-nav__source {
  background: transparent;
  padding: 0.5rem 0.75rem;
}

@media screen and (min-width: 76.25em) {
  .md-nav--lifted > .md-nav__list > .md-nav__item:has(> .md-nav a[href="../annotated/"]),
  .md-nav--lifted > .md-nav__list > .md-nav__item:has(> .md-nav a[href="../classes/"]),
  .md-nav--lifted > .md-nav__list > .md-nav__item:has(> .md-nav a[href="../files/"]),
  .md-nav--lifted > .md-nav__list > .md-nav__item:has(> .md-nav a[href="../namespaces/"]) {
    display: block;
  }

  .md-nav--lifted > .md-nav__list > .md-nav__item:has(> .md-nav a[href="../annotated/"]) > .md-nav,
  .md-nav--lifted > .md-nav__list > .md-nav__item:has(> .md-nav a[href="../classes/"]) > .md-nav,
  .md-nav--lifted > .md-nav__list > .md-nav__item:has(> .md-nav a[href="../files/"]) > .md-nav,
  .md-nav--lifted > .md-nav__list > .md-nav__item:has(> .md-nav a[href="../namespaces/"]) > .md-nav {
    opacity: 1;
    visibility: visible;
  }

  .md-nav--lifted > .md-nav__list > .md-nav__item:has(> .md-nav a[href="../annotated/"]) > .md-nav__link,
  .md-nav--lifted > .md-nav__list > .md-nav__item:has(> .md-nav a[href="../classes/"]) > .md-nav__link,
  .md-nav--lifted > .md-nav__list > .md-nav__item:has(> .md-nav a[href="../files/"]) > .md-nav__link,
  .md-nav--lifted > .md-nav__list > .md-nav__item:has(> .md-nav a[href="../namespaces/"]) > .md-nav__link {
    color: var(--os-blue);
  }
}

/* Landing page */
.os-landing {
  box-sizing: border-box;
  margin: -0.6rem calc(50% - 50vw) 0;
  background: var(--os-bg-2);
}

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

.os-hero {
  position: relative;
  min-height: 36rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  padding: 4.8rem max(2rem, calc((100vw - 74rem) / 2)) 4.2rem;
  background:
    linear-gradient(90deg, var(--os-bg) 0%, rgba(5, 10, 18, 0.82) 38%, rgba(5, 10, 18, 0) 66%),
    var(--os-bg);
}

.os-hero::before {
  content: none;
}

.os-hero::after {
  content: "";
  position: absolute;
  right: max(0.5rem, calc((100vw - 78rem) / 2));
  top: 50%;
  width: min(39rem, 54vw);
  height: min(30rem, 42vw);
  transform: translateY(-50%);
  background: url("../images/brand/hero-art.png") center / contain no-repeat;
  filter: drop-shadow(0 10px 26px rgba(0, 0, 0, 0.5));
  mask-image: radial-gradient(ellipse at 56% 50%, #000 0 72%, transparent 90%);
  opacity: 1;
}

.os-eyebrow,
.os-hero-title,
.os-divider,
.os-hero-sub,
.os-hero-actions {
  position: relative;
  z-index: 1;
}

.os-eyebrow {
  margin: 0 0 0.8rem;
  color: var(--os-blue-2);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.os-landing .os-hero-title {
  max-width: 46rem;
  margin: 0;
  color: #fff;
  font-family: var(--os-display);
  font-size: 4rem;
  font-weight: 900;
  line-height: 0.97;
  letter-spacing: 0.01em;
  text-transform: uppercase;
}

.os-eyebrow,
.os-feature strong,
.os-section-kicker,
.os-footer-col h2,
.os-section-head h2,
.os-header-nav a,
.md-tabs__link {
  font-family: var(--os-display);
}

.os-accent {
  color: var(--os-blue-2);
}

.os-divider {
  width: 24rem;
  max-width: 70vw;
  height: 1.2rem;
  margin: 1.2rem 0 1.4rem;
  background:
    linear-gradient(var(--os-gold), var(--os-gold)) left 50% / calc(50% - 1rem) 2px no-repeat,
    linear-gradient(var(--os-gold), var(--os-gold)) right 50% / calc(50% - 1rem) 2px no-repeat;
}

.os-divider::after {
  content: "★";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  color: var(--os-gold);
  font-size: 1rem;
  line-height: 1;
}

.os-hero-sub {
  max-width: 31rem;
  margin: 0 0 1.8rem;
  color: rgba(232, 236, 244, 0.82);
  font-size: 1rem;
  line-height: 1.7;
}

.os-hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.os-btn-icon {
  width: 1em;
  height: 1em;
  margin-left: 0.55em;
  flex: 0 0 auto;
}

.os-button,
.md-typeset .os-button,
.os-hero-actions .md-button {
  display: inline-flex;
  align-items: center;
  min-height: 2.4rem;
  border-radius: 4px;
  font-weight: 800;
}

.os-button--primary,
.md-typeset .os-button--primary,
.os-hero-actions .md-button--primary {
  background: linear-gradient(180deg, #28a7ff, #1474cf);
  border-color: #28a7ff;
  color: #fff;
}

.os-button--ghost,
.md-typeset .os-button--ghost,
.os-hero-actions .md-button:not(.md-button--primary) {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.35);
  color: #fff;
}

/* Ghost buttons sitting on the light About/Projects band need dark ink */
.os-light-band .os-button--ghost,
.os-light-band .md-typeset .os-button--ghost,
.os-light-band .md-button:not(.md-button--primary) {
  background: transparent;
  border-color: rgba(11, 19, 32, 0.3);
  color: #0b1320;
}

.os-light-band .os-button--ghost:hover,
.os-light-band .md-button:not(.md-button--primary):hover {
  border-color: #1474cf;
  color: #1474cf;
}

.os-features {
  background: rgba(0, 15, 28, 0.96);
  border-top: 1px solid var(--os-line-soft);
  border-bottom: 1px solid var(--os-line-soft);
  padding: 1.2rem max(2rem, calc((100vw - 74rem) / 2));
}

.os-features-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.8rem;
}

.os-feature {
  display: grid;
  grid-template-columns: 2.55rem minmax(0, 1fr);
  align-items: center;
  gap: 0.72rem;
  min-width: 0;
}

.os-feature:not(:last-child) {
  border-right: 1px solid var(--os-line-soft);
}

.os-feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.4rem;
  height: 2.4rem;
  color: var(--os-blue);
}

.os-feature-icon img {
  width: 2.4rem;
  height: 2.4rem;
  object-fit: contain;
}

.os-feature strong {
  display: block;
  color: #fff;
  font-size: 0.68rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  line-height: 1.25;
  text-transform: uppercase;
}

.os-feature small {
  color: rgba(232, 236, 244, 0.62);
  font-size: 0.62rem;
  line-height: 1.2;
}

.os-light-band {
  color: #111827;
  background:
    linear-gradient(110deg, rgba(255, 255, 255, 0.98), rgba(245, 247, 251, 0.92)),
    repeating-linear-gradient(45deg, transparent 0 18px, rgba(30, 143, 255, 0.05) 18px 19px);
}

.os-about {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(18rem, 1.1fr);
  gap: 3rem;
  align-items: center;
  max-width: 74rem;
  margin: 0 auto;
  padding: 4rem 2rem;
}

.os-about h2,
.os-projects h2 {
  margin: 0;
  color: #111827;
  font-size: 2rem;
  font-weight: 900;
  line-height: 1.18;
}

.os-section-kicker {
  margin: 0 0 0.65rem;
  color: #1474cf;
  font-size: 0.68rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.os-about p {
  max-width: 33rem;
  color: #263244;
}

.os-about-art {
  position: relative;
  min-height: 22rem;
  background: url("../images/brand/about-cockpit.png") center right / contain no-repeat;
  overflow: hidden;
}

.os-about-art::before {
  content: none;
}

.os-about-art::after {
  content: none;
}

.os-projects {
  max-width: 74rem;
  margin: 0 auto;
  padding: 1rem 2rem 4.2rem;
}

.os-section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.3rem;
}

.os-section-head h2 {
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.os-projects-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.15rem;
}

.os-project-card {
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--os-light-2);
  border-radius: 6px;
  box-shadow: 0 10px 26px rgba(17, 24, 39, 0.08);
}

.os-project-thumb {
  aspect-ratio: 11 / 6;
  background: #f1f4f8;
  overflow: hidden;
}

.os-project-thumb img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.os-project-info {
  padding: 1rem;
}

.os-project-info h3 {
  margin: 0 0 0.45rem;
  color: #111827;
  font-size: 0.88rem;
  font-weight: 900;
}

.os-project-info p {
  margin: 0 0 0.8rem;
  color: #344256;
  font-size: 0.72rem;
  line-height: 1.55;
}

.os-project-info a {
  color: #1474cf;
  font-size: 0.72rem;
  font-weight: 800;
}

/* API/documentation pages */
.md-content .md-typeset > h1:first-child {
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--os-line);
}

.md-typeset ul li::marker {
  color: var(--os-blue);
}

.md-typeset .autorefs,
.md-typeset a[href^="../class_"],
.md-typeset a[href^="../namespace_"],
.md-typeset a[href^="../_"] {
  font-weight: 700;
}

.md-footer {
  background: var(--os-bg);
  border-top: 1px solid var(--os-line);
}

.os-site-footer {
  max-width: 74rem;
  margin: 0 auto;
  padding: 3rem 2rem 2rem;
}

.os-footer-grid {
  display: grid;
  grid-template-columns: minmax(13rem, 1.5fr) minmax(8rem, 1fr) minmax(8rem, 1fr) minmax(13rem, 1.4fr);
  gap: 2rem;
}

.os-footer-brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.9rem;
}

.os-footer-brand img {
  width: min(14rem, 100%);
  height: auto;
}

.os-footer-tagline {
  margin: 0;
  max-width: 17rem;
  color: var(--os-muted);
  font-size: 0.72rem;
  line-height: 1.55;
}

.os-footer-brand strong {
  color: #fff;
  font-size: 1.05rem;
  font-weight: 900;
  letter-spacing: 0.16em;
  line-height: 1.05;
  text-transform: uppercase;
}

.os-footer-brand span {
  display: block;
  margin-top: 0.45rem;
  color: var(--os-muted);
  font-size: 0.58rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.os-footer-col h2 {
  margin: 0 0 0.8rem;
  color: #fff;
  font-size: 0.78rem;
  font-weight: 900;
}

.os-footer-col a,
.os-footer-col p {
  display: block;
  margin: 0.35rem 0;
  color: rgba(232, 236, 244, 0.72);
  font-size: 0.72rem;
}

.os-footer-bottom {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--os-line-soft);
  color: rgba(232, 236, 244, 0.48);
  font-size: 0.65rem;
}

.os-footer-community p {
  margin: 0 0 1rem;
  max-width: 17rem;
  color: rgba(232, 236, 244, 0.72);
  font-size: 0.72rem;
  line-height: 1.55;
}

.os-footer-community .os-footer-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: auto;
  height: 2.4rem;
  margin: 0 0 0.95rem;
  padding: 0 1.2rem;
  color: #fff !important;
  font-size: 0.74rem;
  font-weight: 800;
  background: linear-gradient(180deg, #1f93f0, #1474cf);
  border: 1px solid #2f9bf5;
  border-radius: 4px;
  transition: filter 160ms ease;
}

.os-footer-community .os-footer-cta:hover {
  filter: brightness(1.08);
}

.os-footer-link {
  display: block;
  margin: 0.4rem 0;
  color: var(--os-blue-2) !important;
  font-size: 0.72rem;
  font-weight: 800;
}

@media (max-width: 76.2375em) {
  /* The tall 8rem header + 320px logo are desktop-only. Below the desktop nav
     breakpoint, shrink them so the logo doesn't dominate mobile/tablet. */
  .md-header,
  .md-header__inner {
    min-height: 128px;
  }

  .md-header__button.md-logo {
    height: 128px;
  }

  .md-header__button.md-logo img,
  .md-header__button.md-logo svg {
    height: 112px;
    max-height: 112px;
  }
}

@media (max-width: 960px) {
  .os-hero {
    min-height: 32rem;
  }

  .os-hero::after {
    right: -10rem;
    width: 38rem;
    height: 29rem;
    opacity: 0.24;
  }

  .os-landing .os-hero-title {
    font-size: 2.95rem;
  }

  .os-features-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .os-feature:not(:last-child) {
    border-right: 0;
  }

  .os-about {
    grid-template-columns: 1fr;
  }

  .os-projects-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .os-footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 76.25em) {
  /* 76.25em is where Material fixes the sidebar and hides the hamburger.
     Swap in the custom top nav exactly here so the two never coexist. */
  .md-header__button[for="__drawer"] {
    display: none;
  }

  /* Match the logo's left inset to the source's right inset (same 2rem edge
     floor) so the header is symmetric instead of the logo hugging the edge. */
  .md-header__inner {
    max-width: none;
    padding-left: max(2rem, calc((100vw - 74rem) / 2));
    padding-right: max(2rem, calc((100vw - 74rem) / 2));
  }

  .os-header-nav {
    position: absolute;
    top: 0;
    right: max(13.2rem, calc((100vw - 74rem) / 2 + 11.2rem));
    left: max(19.5rem, calc((100vw - 74rem) / 2 + 19.5rem));
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: clamp(0.7rem, 1.5vw, 1.7rem);
    height: 8rem;
    z-index: 6;
    pointer-events: none;
  }

  .os-header-nav a {
    position: relative;
    display: inline-flex;
    align-items: center;
    height: 8rem;
    color: rgba(246, 248, 255, 0.88);
    font-size: clamp(0.66rem, 0.92vw, 0.86rem);
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    white-space: nowrap;
    pointer-events: auto;
  }

  .os-header-nav a:hover,
  .os-header-nav__link--active {
    color: #fff;
  }

  .os-header-nav__link--active::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 3rem;
    height: 2px;
    background: var(--os-blue);
    box-shadow: 0 0 8px rgba(30, 143, 255, 0.7);
  }

  .md-header__source {
    position: absolute;
    top: 3rem;
    right: max(2rem, calc((100vw - 74rem) / 2));
    z-index: 3;
    margin-left: 0;
  }

  .md-header__button[for="__search"] {
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    top: 3rem;
    right: max(10rem, calc((100vw - 74rem) / 2 + 8rem));
    width: 2rem;
    height: 2rem;
    margin: 0;
    z-index: 4;
    color: rgba(246, 248, 255, 0.92);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.045);
    transition: background 160ms ease, border-color 160ms ease, color 160ms ease;
  }

  .md-header__button[for="__search"]:hover,
  .md-header__button[for="__search"]:focus {
    color: #fff;
    border-color: rgba(59, 139, 235, 0.55);
    background: rgba(30, 143, 255, 0.1);
  }

  .md-search {
    position: absolute;
    top: 3rem;
    right: max(10rem, calc((100vw - 74rem) / 2 + 8rem));
    z-index: 5;
    width: 2rem;
    pointer-events: none;
  }

  .md-search__inner {
    width: 2rem;
    height: 2rem;
    opacity: 0;
    pointer-events: none;
  }

  [data-md-toggle="search"]:checked ~ .md-header .md-search {
    right: max(13rem, calc((100vw - 74rem) / 2 + 11rem));
    z-index: 8;
    width: 18rem;
    pointer-events: auto;
  }

  [data-md-toggle="search"]:checked ~ .md-header .os-header-nav,
  [data-md-toggle="search"]:checked ~ .md-header .md-header__button[for="__search"] {
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
  }

  [data-md-toggle="search"]:checked ~ .md-header .md-search__inner {
    width: 18rem;
    opacity: 1;
    pointer-events: auto;
  }

  [data-md-toggle="search"]:checked ~ .md-header .md-search__input {
    width: 18rem;
    color: var(--os-text);
  }

  [data-md-toggle="search"]:checked ~ .md-header .md-search__input::placeholder {
    color: var(--os-muted);
  }

  .md-tabs {
    display: none !important;
  }
}

@media (max-width: 640px) {
  .md-header__topic:first-child .md-ellipsis::after {
    display: none;
  }

  .os-hero {
    width: 100vw;
    padding: 3.5rem 1.2rem;
  }

  .os-landing {
    max-width: 100vw;
    overflow: hidden;
  }

  .os-eyebrow,
  .os-hero-title,
  .os-divider,
  .os-hero-sub,
  .os-hero-actions {
    max-width: calc(100vw - 2.4rem);
  }

  .os-hero-sub {
    width: 18.8rem;
    max-width: calc(100vw - 2.4rem);
  }

  .os-hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .os-hero-actions .md-button {
    width: min(100%, 12rem);
    justify-content: center;
  }

  .os-landing .os-hero-title {
    font-size: 2.2rem;
  }

  .os-features,
  .os-about,
  .os-projects,
  .os-site-footer {
    padding-left: 1.2rem;
    padding-right: 1.2rem;
  }

  .os-features-grid,
  .os-projects-grid,
  .os-footer-grid {
    grid-template-columns: 1fr;
  }
}