/* Base document */

@font-face {
  font-family: "Instrument Sans";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("/assets/instrument-sans-latin-variable-265d6ea6.woff2") format("woff2");
}

@font-face {
  font-family: "Space Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("/assets/space-mono-latin-400-2fb0d22d.woff2") format("woff2");
}

@font-face {
  font-family: "Space Mono";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("/assets/space-mono-latin-700-27e084bd.woff2") format("woff2");
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--color-ink);
  background: var(--color-bg);
  font-family: "Instrument Sans", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

a {
  color: var(--color-brand);
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--color-brand-dark);
}

:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: var(--space-3);
  left: var(--space-3);
  z-index: 100;
  padding: var(--space-3) var(--space-4);
  color: var(--color-on-brand);
  background: var(--color-brand-dark);
  transform: translateY(-200%);
}

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

.site-container {
  width: min(100% - 2rem, var(--content-width));
  margin-inline: auto;
}

.site-header .site-container,
.site-footer .site-container,
.home-page .site-container,
.calculator-directory-page .site-container {
  width: min(calc(100% - clamp(2rem, 5vw, 6rem)), var(--wide-content-width));
}

.site-header {
  border-bottom: 2px solid var(--color-accent);
  background: var(--color-surface-translucent);
}

.site-header__inner,
.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-block: var(--space-4);
}

.site-header__inner {
  row-gap: var(--space-3);
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-4);
  color: var(--color-ink);
  font-size: clamp(0.95rem, 2vw, 1.7rem);
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 1;
  text-decoration: none;
  text-transform: uppercase;
}

.site-brand:hover {
  color: var(--color-ink);
}

.site-brand__mark {
  position: relative;
  display: inline-block;
  flex: 0 0 2rem;
  width: 2rem;
  height: 2rem;
  border-radius: var(--radius-small);
  background: var(--color-accent);
}

.site-brand__mark::after {
  position: absolute;
  inset: 0.625rem;
  border-radius: 1px;
  background: var(--color-on-accent);
  content: "";
}

.site-nav,
.site-footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.site-nav {
  order: 3;
  flex-basis: 100%;
}

.site-preferences {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-left: auto;
}

.site-nav a,
.site-footer__nav a {
  font-weight: 650;
}

.site-nav a {
  color: var(--color-muted);
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--color-ink);
}

.site-nav a[aria-current="page"] {
  color: var(--color-ink);
  text-decoration-line: underline;
  text-decoration-color: var(--color-accent);
  text-decoration-thickness: 3px;
  text-underline-offset: 0.3em;
}

.site-unit-switch {
  display: inline-grid;
  grid-template-columns: repeat(2, auto);
  min-width: 0;
  padding: 0;
  margin: 0;
  border: 1.5px solid var(--color-ink);
  border-radius: var(--radius-small);
  background: transparent;
  overflow: hidden;
}

.site-unit-switch__input {
  position: absolute;
  width: 1px;
  height: 1px;
  min-height: 0;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.site-unit-switch__label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding-inline: var(--space-4);
  border-radius: 0;
  color: var(--color-ink);
  font-size: 0.9rem;
  font-weight: 750;
  line-height: 1;
  cursor: pointer;
}

.site-unit-switch__label:last-child {
  border-left: 1px solid var(--color-ink);
}

.site-unit-switch__input:checked + .site-unit-switch__label {
  color: var(--color-bg);
  background: var(--color-ink);
}

.site-unit-switch__input:not(:checked) + .site-unit-switch__label:hover {
  color: var(--color-ink);
  background: var(--color-brand-tint);
}

.site-unit-switch__input:focus-visible + .site-unit-switch__label {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
}

.site-theme-toggle {
  display: inline-flex;
  flex: 0 0 2.75rem;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  min-height: 2.75rem;
  padding: 0;
  border-color: var(--color-ink);
  color: var(--color-brand);
  background: transparent;
}

.site-theme-toggle[hidden] {
  display: none;
}

.site-theme-toggle:hover {
  border-color: var(--color-ink);
  color: var(--color-brand);
  background: var(--color-brand-tint);
}

.site-theme-toggle__icon {
  display: block;
}

.site-theme-toggle__icon--sun,
[data-theme="dark"] .site-theme-toggle__icon--moon {
  display: none;
}

[data-theme="dark"] .site-theme-toggle__icon--sun {
  display: block;
}

.site-footer {
  margin-top: 0;
  border-top: 1px solid var(--color-border);
  color: var(--color-footer-ink);
  background: var(--color-footer-bg);
}

.site-footer a {
  color: var(--color-footer-link);
  text-decoration: none;
}

.site-footer p {
  margin: 0;
}

.breadcrumbs {
  padding-block: var(--space-4);
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding: 0;
  margin: 0;
  color: var(--color-muted);
  font-size: 0.92rem;
  list-style: none;
}

.breadcrumbs li:not(:last-child)::after {
  margin-left: var(--space-2);
  content: "/";
}

.hero {
  padding-block: var(--space-8);
  background: linear-gradient(145deg, var(--color-hero-start), var(--color-hero-end));
}

.hero__content {
  max-width: var(--content-width);
}

.hero h1,
.page-heading h1,
.prose h1 {
  max-width: 18ch;
  margin: 0;
  font-size: clamp(2.25rem, 7vw, 4.75rem);
  line-height: 1.03;
  letter-spacing: -0.045em;
}

.hero__lede {
  max-width: 42rem;
  margin-block: var(--space-5) var(--space-6);
  color: var(--color-muted);
  font-size: clamp(1.1rem, 2vw, 1.3rem);
}

.eyebrow {
  margin-block: 0 var(--space-3);
  color: var(--color-muted);
  font-family: "Space Mono", monospace;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.home-hero {
  padding-block: clamp(4.5rem, 8vw, 7rem) clamp(4.5rem, 7vw, 6rem);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
}

.home-hero .hero__content {
  max-width: none;
}

.home-hero .eyebrow {
  margin-bottom: var(--space-6);
}

.home-hero h1 {
  max-width: 74rem;
  font-size: clamp(3rem, 4.25vw, 4.75rem);
}

.marker-highlight {
  padding-inline: 0.04em;
  margin-inline: -0.04em;
  background: linear-gradient(
    to bottom,
    transparent 62%,
    var(--color-heading-marker) 62%
  );
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}

.home-hero .hero__lede {
  max-width: 57rem;
  margin-block: var(--space-5) 0;
  font-size: clamp(1.15rem, 1.6vw, 1.6rem);
}

.section,
.page-heading,
.page-content {
  padding-block: var(--space-7);
}

.section--muted,
.page-heading {
  background: var(--color-surface-muted);
}

.section-heading {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}

.section-heading h2,
.prose-summary h2,
.empty-state h2,
.empty-state h3 {
  margin: 0;
  line-height: 1.2;
}

.home-featured {
  padding-block: calc(var(--space-6) + var(--space-2)) clamp(4rem, 7vw, 5.5rem);
}

.home-featured .section-heading {
  margin-bottom: var(--space-6);
}

.home-featured .section-heading h2 {
  font-size: clamp(1.75rem, 2.5vw, 2.6rem);
  letter-spacing: -0.035em;
}

.prose,
.prose-summary {
  max-width: var(--text-width);
}

.prose h2 {
  margin-top: var(--space-6);
  line-height: 1.2;
}

@media (min-width: 64rem) {
  .site-header__inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    gap: var(--space-6);
    min-height: 6.25rem;
  }

  .site-nav {
    order: initial;
    flex-basis: auto;
    justify-content: center;
    gap: clamp(var(--space-5), 3vw, var(--space-7));
    margin-left: 0;
  }

  .site-preferences {
    gap: var(--space-4);
    justify-self: end;
    margin-left: 0;
  }

  .site-unit-switch__label {
    min-height: 3.25rem;
    padding-inline: 1.75rem;
    font-size: 1rem;
  }

  .site-theme-toggle {
    flex-basis: 3.75rem;
    width: 3.75rem;
    min-height: 3.75rem;
  }

  .site-footer__inner {
    min-height: 5.25rem;
  }
}

@media (max-width: 35rem) {
  .site-brand__mark {
    flex-basis: 1.75rem;
    width: 1.75rem;
    height: 1.75rem;
  }

  .site-brand__mark::after {
    inset: 0.55rem;
  }

  .site-header__inner {
    align-items: flex-start;
  }

  .site-preferences {
    flex-basis: 100%;
    justify-content: flex-start;
    margin-left: 0;
  }
}