@font-face {
  font-family: "Archivo";
  src: url("/static/fonts/archivo-latin-var.woff2") format("woff2");
  font-weight: 400 900;
  font-stretch: 62% 125%;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "JetBrains Mono";
  src: url("/static/fonts/jetbrains-mono-latin-var.woff2") format("woff2");
  font-weight: 400 600;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: light dark;
  --paper: #efebe3;
  --paper-raised: #f7f4ee;
  --ink: #141210;
  --ink-2: #4a453d;
  --muted: #5a544a;
  --rule: #141210;
  --rule-soft: color-mix(in srgb, var(--ink) 20%, transparent);
  --accent: #d40e14;
  --on-accent: #ffffff;
  --cta: var(--ink);
  --on-cta: var(--paper);
  --tape: #141210;
  --on-tape: #efebe3;
  --frame: var(--ink);
  --focus: var(--ink);
  --control-border: var(--rule);
  --ok: #0a7d32;
  --on-ok: #ffffff;
  --danger: #b00020;
  --on-danger: #ffffff;
  --warn: #ffb000;
  --on-warn: #000000;
  --font-display: "Archivo", system-ui, sans-serif;
  --font-body: "Archivo", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
  --gutter: 20px;
  font-family: var(--font-body);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --paper: #151413;
    --paper-raised: #1d1c1a;
    --ink: #efebe3;
    --ink-2: #c9c4b9;
    --muted: #a29d93;
    --rule: #3a3835;
    --accent: #ff8421;
    --on-accent: #151413;
    --cta: var(--accent);
    --on-cta: #151413;
    --tape: #e9e4d8;
    --on-tape: #151413;
    --frame: var(--rule);
    --focus: var(--accent);
    --control-border: var(--muted);
  }
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --paper: #151413;
  --paper-raised: #1d1c1a;
  --ink: #efebe3;
  --ink-2: #c9c4b9;
  --muted: #a29d93;
  --rule: #3a3835;
  --accent: #ff8421;
  --on-accent: #151413;
  --cta: var(--accent);
  --on-cta: #151413;
  --tape: #e9e4d8;
  --on-tape: #151413;
  --frame: var(--rule);
  --focus: var(--accent);
  --control-border: var(--muted);
}

:root[data-theme="light"] {
  color-scheme: light;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  border-radius: 0;
  box-shadow: none;
}

[hidden] {
  display: none !important;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font-body);
  font-size: 1rem;
  font-stretch: 100%;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.site-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.25rem 1rem;
  padding: 0.75rem var(--gutter) 0.625rem;
  border-bottom: 3px solid var(--rule);
}

.site-header a {
  color: var(--ink);
  text-decoration: none;
}

.site-header a:hover {
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.site-header .brand {
  font-family: var(--font-display);
  font-stretch: 70%;
  font-weight: 900;
  font-size: 1.5rem;
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: 0.01em;
}

.site-nav {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.site-tools {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1rem;
}

.theme-toggle {
  min-height: 2rem;
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
}

main {
  max-width: 40rem;
  margin: 0 auto;
  padding: 1.5rem var(--gutter) 3rem;
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  text-transform: uppercase;
  text-wrap: balance;
  overflow-wrap: anywhere;
  margin: 0 0 0.75rem;
}

h1 {
  font-stretch: 62%;
  font-weight: 900;
  font-size: clamp(2.75rem, 1.25rem + 8vw, 8rem);
  line-height: 0.85;
  letter-spacing: -0.005em;
  margin: 0.5rem 0 1rem;
}

h2 {
  font-stretch: 70%;
  font-weight: 800;
  font-size: clamp(1.75rem, 1.25rem + 2vw, 2.5rem);
  line-height: 0.95;
  padding-top: 0.5rem;
  border-top: 3px solid var(--rule);
  margin-top: 2rem;
}

h3 {
  font-stretch: 70%;
  font-weight: 800;
  font-size: 1.5rem;
  line-height: 1;
}

p {
  margin: 0 0 1rem;
}

strong {
  font-weight: 700;
}

a {
  color: var(--ink);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--ink-2);
}

code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  font-weight: 600;
  letter-spacing: 0.04em;
}

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

.kicker {
  margin: 0 0 0.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--rule);
  font-family: var(--font-display);
  font-stretch: 70%;
  font-weight: 800;
  font-size: clamp(1.375rem, 1rem + 1.5vw, 1.75rem);
  line-height: 1.05;
  text-transform: uppercase;
  overflow-wrap: anywhere;
}

.list {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
  border-top: 2px solid var(--rule);
}

.list li {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--rule-soft);
  overflow-wrap: anywhere;
}

.list li > a:first-child {
  font-family: var(--font-display);
  font-stretch: 70%;
  font-weight: 800;
  font-size: 1.375rem;
  line-height: 1.1;
  text-transform: uppercase;
}

.badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink);
  border: 2px solid currentColor;
  padding: 0.125rem 0.375rem;
  margin-left: 0.25em;
  vertical-align: 0.125em;
  overflow-wrap: normal;
  white-space: nowrap;
}

p.badge {
  margin-left: 0;
}

.badge.ok {
  color: var(--on-ok);
  background: var(--ok);
  border-color: var(--ok);
}

.hint {
  color: var(--muted);
  font-size: 0.875rem;
}

label {
  display: block;
  margin: 0 0 0.375rem;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

input:not([type="hidden"], [type="checkbox"], [type="radio"]),
select,
textarea {
  display: block;
  width: 100%;
  min-height: 3rem;
  margin: 0 0 1rem;
  padding: 0.625rem 0.75rem;
  color: var(--ink);
  background: var(--paper-raised);
  border: 2px solid var(--control-border);
  font: inherit;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: normal;
  text-transform: none;
}

textarea {
  min-height: 6rem;
  resize: vertical;
}

select {
  appearance: none;
  padding-right: 2.5rem;
  background-image: linear-gradient(45deg, transparent 50%, var(--ink) 50%), linear-gradient(135deg, var(--ink) 50%, transparent 50%);
  background-position: calc(100% - 1.25rem) 50%, calc(100% - 0.875rem) 50%;
  background-size: 0.375rem 0.375rem;
  background-repeat: no-repeat;
}

input::placeholder,
textarea::placeholder {
  color: var(--muted);
  opacity: 1;
}

input[aria-invalid="true"] {
  border-color: var(--danger);
  border-width: 3px;
}

.field {
  display: grid;
  gap: 0.375rem;
  margin-bottom: 1rem;
}

.field label,
.field input,
.field p {
  margin: 0;
}

.field-hint {
  margin: 0;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.5;
}

.error,
.ok,
.field-error {
  color: var(--ink);
  font-weight: 600;
}

p.error,
p.ok,
.field-error {
  padding: 0.5rem 0.75rem;
  border-left: 6px solid var(--danger);
  background: var(--paper-raised);
}

p.ok {
  border-left-color: var(--ok);
}

.field-error {
  font-size: 0.9375rem;
}

:not(p).error,
:not(p).ok {
  display: inline-block;
  padding: 0 0.375rem;
  color: var(--on-danger);
  background: var(--danger);
}

:not(p).ok {
  color: var(--on-ok);
  background: var(--ok);
}

.badge.ok,
.badge.error {
  padding: 0.125rem 0.375rem;
}

button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 2.75rem;
  padding: 0.5rem 1rem;
  color: var(--ink);
  background: transparent;
  border: 2px solid var(--rule);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
}

button:hover {
  background: var(--paper-raised);
}

.button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: 100%;
  min-height: 3.5rem;
  padding: 0.75rem 1.125rem;
  color: var(--on-cta);
  background: var(--cta);
  border: 2px solid var(--cta);
  font-family: var(--font-display);
  font-stretch: 70%;
  font-weight: 900;
  font-size: 1.5rem;
  line-height: 1;
  letter-spacing: 0.02em;
  text-align: left;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
}

.button::after {
  content: "→" / "";
  flex: none;
}

.button:hover {
  color: var(--on-cta);
  background: var(--cta);
  text-decoration: underline;
  text-decoration-thickness: 3px;
  text-underline-offset: 4px;
}

.button:disabled {
  opacity: 0.5;
  cursor: progress;
  text-decoration: none;
}

@media (min-width: 40rem) {
  .button {
    display: inline-flex;
    width: auto;
    min-width: 18rem;
  }
}

.link-button {
  display: inline;
  min-height: 0;
  padding: 0;
  color: var(--ink);
  background: none;
  border: 0;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.link-button:hover {
  background: none;
  color: var(--ink-2);
}

.spec {
  display: grid;
  margin: 0 0 1.25rem;
  border: 2px solid var(--rule);
}

.spec > div {
  display: grid;
  grid-template-columns: minmax(5.5rem, 8rem) 1fr;
  align-items: baseline;
}

.spec > div + div {
  border-top: 2px solid var(--rule);
}

.spec dt {
  align-self: stretch;
  padding: 0.75rem;
  border-right: 2px solid var(--rule);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.spec dd {
  margin: 0;
  padding: 0.625rem 0.75rem;
  min-width: 0;
  font-weight: 600;
  overflow-wrap: anywhere;
}

.tape {
  display: inline-block;
  padding: 0.25rem 0.625rem;
  color: var(--on-tape);
  background: var(--tape);
  font-family: var(--font-display);
  font-stretch: 70%;
  font-weight: 800;
  text-transform: uppercase;
  transform: rotate(-1.5deg);
}

@media (prefers-reduced-motion: no-preference) {
  .button,
  button,
  a {
    transition: color 0.1s, background-color 0.1s;
  }
}