:root {
  --space-2xs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --z-nav: 20;
}

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

html {
  scroll-behavior: smooth;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  min-width: 20rem;
  font-kerning: normal;
  text-rendering: optimizeLegibility;
}

button,
a {
  font: inherit;
}

a {
  color: inherit;
}

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

.skip-link {
  position: fixed;
  inset: var(--space-sm) auto auto var(--space-sm);
  z-index: 100;
  padding: var(--space-sm) var(--space-md);
  transform: translateY(-180%);
}

.skip-link:focus {
  transform: translateY(0);
}

.shell {
  width: min(100% - 2rem, 90rem);
  margin-inline: auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
}

.brand__mark {
  display: grid;
  width: 2.75rem;
  height: 2.75rem;
  place-items: center;
  font-variant-numeric: tabular-nums;
  font-weight: 800;
}

.brand__copy {
  display: grid;
  line-height: 1;
}

.brand__copy small {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.site-header__inner {
  min-height: 4.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.site-nav {
  display: none;
  align-items: center;
  gap: clamp(1rem, 2.4vw, 2.5rem);
}

.site-nav a,
.header-action {
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.menu-toggle {
  min-width: 2.75rem;
  min-height: 2.75rem;
  display: inline-grid;
  place-items: center;
  border: 0;
  cursor: pointer;
}

.mobile-nav {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 260ms var(--ease-in-out);
}

.mobile-nav > div {
  overflow: hidden;
}

.mobile-nav nav {
  display: grid;
  padding-block: 0;
  transition: padding 260ms var(--ease-in-out);
}

.site-header[data-open="true"] .mobile-nav {
  grid-template-rows: 1fr;
}

.site-header[data-open="true"] .mobile-nav nav {
  padding-block: var(--space-sm) var(--space-lg);
}

.mobile-nav a {
  min-height: 3rem;
  display: flex;
  align-items: center;
  text-decoration: none;
}

.button {
  min-height: 3.25rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.8rem 1.15rem;
  border: 1px solid currentColor;
  font-weight: 700;
  text-decoration: none;
  transition: transform 150ms var(--ease-out), background-color 150ms var(--ease-out), color 150ms var(--ease-out);
}

.button:active {
  transform: translateY(1px);
}

.button__arrow {
  font-size: 1.25em;
  line-height: 1;
  transform: translateX(0);
  transition: transform 200ms var(--ease-out);
}

@media (hover: hover) {
  .button:hover .button__arrow {
    transform: translateX(0.25rem);
  }
}

.button:focus-visible,
.menu-toggle:focus-visible,
a:focus-visible {
  outline: 3px solid var(--focus-color);
  outline-offset: 3px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.task-nav {
  display: grid;
}

.task-nav a {
  min-height: 4.25rem;
  display: grid;
  grid-template-columns: 2.25rem minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-md);
  text-decoration: none;
}

.task-nav span:first-child {
  font-variant-numeric: tabular-nums;
}

.section-label {
  margin: 0;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.prototype-switcher {
  position: static;
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: var(--space-xs);
  width: min(100% - 2rem, 90rem);
  margin: var(--space-lg) auto max(var(--space-lg), env(safe-area-inset-bottom));
  padding: var(--space-xs);
}

.prototype-switcher a {
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
  padding-inline: var(--space-md);
  font-size: 0.75rem;
  font-weight: 700;
  text-decoration: none;
}

@media (min-width: 48rem) {
  .shell {
    width: min(100% - 4rem, 90rem);
  }

  .site-nav {
    display: flex;
  }

  .menu-toggle,
  .mobile-nav {
    display: none;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}