/* Reset, typography scale, layout primitives. */

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: calc(var(--chrome-h) + env(safe-area-inset-top, 0px) + 16px);
  overflow-x: clip;
}

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
  -webkit-tap-highlight-color: transparent;
}

img,
svg,
canvas,
video {
  display: block;
  max-width: 100%;
}

svg {
  overflow: visible;
}

/* Line icons (ui.icon) keep their size inside flex rows instead of shrinking via max-width. */
svg.icon {
  flex-shrink: 0;
  max-width: none;
}

input,
button,
textarea,
select {
  font: inherit;
  color: inherit;
  letter-spacing: inherit;
}

button {
  cursor: pointer;
  background: none;
  border: 0;
  padding: 0;
}

button:disabled,
[aria-disabled="true"] {
  cursor: not-allowed;
}

p,
h1,
h2,
h3,
h4,
h5,
h6,
figure,
blockquote,
dl,
dd,
ul,
ol {
  margin: 0;
}

/* :where() keeps this at zero specificity so component classes can set their own padding. */
:where(ul[class], ol[class]) {
  list-style: none;
  padding: 0;
}

table {
  border-collapse: collapse;
  width: 100%;
}

hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 24px 0;
}

::selection {
  background: var(--accent-soft);
  color: var(--text);
}

[hidden] {
  display: none !important;
}

/* ---------------------------------------------------------------- type scale
   12 / 14 / 16 (body) / 18 / 22 / 28 / 36 / 48 */

h1,
h2,
h3,
h4,
.display {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.02em;
  text-wrap: balance;
  color: var(--text);
  font-optical-sizing: auto;
}

h1,
.t-48 {
  font-size: clamp(2.25rem, 1.6rem + 2.4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
}

h2,
.t-36 {
  font-size: clamp(1.75rem, 1.4rem + 1.3vw, 2.25rem);
}

h3,
.t-28 {
  font-size: clamp(1.375rem, 1.2rem + 0.7vw, 1.75rem);
}

h4,
.t-22 {
  font-size: 1.375rem;
  line-height: 1.25;
}

.t-18 {
  font-size: 1.125rem;
}

.t-14 {
  font-size: 0.875rem;
}

.t-12 {
  font-size: 0.75rem;
}

p {
  text-wrap: pretty;
}

a {
  color: var(--info);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  text-decoration-thickness: 2px;
}

strong,
b {
  font-weight: 700;
}

small {
  font-size: 0.875rem;
}

code,
kbd,
samp,
.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.mono {
  font-feature-settings: "zero" 0;
}

.num {
  font-variant-numeric: tabular-nums;
}

.lead {
  font-size: 1.125rem;
  line-height: 1.6;
  color: var(--text-2);
}

.muted {
  color: var(--text-2);
}

.faint {
  color: var(--text-3);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
}

.eyebrow--accent {
  color: var(--accent-strong);
}

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

.prose > * + * {
  margin-top: 0.9em;
}

.prose ul,
.prose ol {
  padding-left: 1.3em;
}

.prose li + li {
  margin-top: 0.35em;
}

.prose h3,
.prose h4 {
  margin-top: 1.4em;
}

/* ---------------------------------------------------------------- focus */

:focus {
  outline: none;
}

:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

main:focus,
main:focus-visible,
[tabindex="-1"]:focus-visible {
  outline: none;
}

/* ---------------------------------------------------------------- layout primitives */

.container {
  width: 100%;
  max-width: calc(1120px + 2 * max(16px, env(safe-area-inset-left, 0px)));
  margin-inline: auto;
  padding-inline: max(16px, env(safe-area-inset-left, 0px)) max(16px, env(safe-area-inset-right, 0px));
}

@media (min-width: 720px) {
  .container {
    max-width: calc(1120px + 48px);
    padding-inline: max(24px, env(safe-area-inset-left, 0px)) max(24px, env(safe-area-inset-right, 0px));
  }
}

.container--read {
  max-width: calc(680px + 2 * 24px);
}

.container--wide {
  max-width: calc(960px + 2 * 24px);
}

.stack {
  display: flex;
  flex-direction: column;
  gap: var(--gap, 16px);
}

.stack--sm {
  --gap: 8px;
}

.stack--lg {
  --gap: 32px;
}

.row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--gap, 12px);
}

.row--sm {
  --gap: 8px;
}

.row--between {
  justify-content: space-between;
}

.row--nowrap {
  flex-wrap: nowrap;
}

.grow {
  flex: 1 1 auto;
  min-width: 0;
}

.section {
  padding-block: clamp(40px, 6vw, 72px);
}

.section--tight {
  padding-block: clamp(24px, 4vw, 40px);
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 8px 24px;
  margin-bottom: 24px;
}

.section-head h2 {
  margin-top: 6px;
}

.section-head p {
  max-width: 52ch;
}

/* ---------------------------------------------------------------- motion */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}