/* Colors and type from DESIGN.md. Fonts are the Latin subsets from Fontsource 5.3.0. */
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  src: url("fonts/inter.woff2") format("woff2");
}
@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-display: swap;
  font-weight: 100 800;
  src: url("fonts/jetbrains-mono.woff2") format("woff2");
}

:root {
  --graphite: #1d1d1f;
  --yellow: #f7c831;
  --bg: #111111;
  --surface: #1b1b1b;
  --text: #f2f1ec;
  --muted: #a29f97;
  --border: #2f2f2f;
  --sans: Inter, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, monospace;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 15px/1.55 var(--sans);
  -webkit-font-smoothing: antialiased;
}
main,
footer {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px;
}
a {
  color: inherit;
}
a:focus-visible {
  outline: 2px solid var(--text);
  outline-offset: 2px;
  border-radius: 4px;
}
code {
  font: 400 13px/1.5 var(--mono);
  border: 1px solid var(--border);
  padding: 0 5px;
  border-radius: 6px;
}

header {
  padding: 64px 0 56px;
}
.icon {
  width: 48px;
  height: 48px;
  display: block;
  margin-bottom: 40px;
}
h1 {
  font-size: 40px;
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.035em;
  margin: 0 0 16px;
}
.lead {
  font-size: 17px;
  color: var(--muted);
  margin: 0 0 24px;
  max-width: 32em;
}
.actions {
  display: flex;
  gap: 8px;
}
.btn {
  display: inline-block;
  font: 600 12px/1.4 var(--sans);
  padding: 8px 14px;
  border-radius: 10px;
  text-decoration: none;
  border: 1px solid var(--border);
  background: var(--surface);
}
.btn.primary {
  background: var(--yellow);
  color: var(--graphite);
  border-color: var(--yellow);
}

section {
  border-top: 1px solid var(--border);
  padding: 40px 0;
}
h2 {
  font: 600 12px/1.4 var(--sans);
  color: var(--muted);
  margin: 0 0 16px;
}

.manifesto p {
  margin: 0 0 12px;
  max-width: 34em;
}
.manifesto p:first-of-type {
  font-size: 17px;
}
.warning {
  margin: 24px 0 0;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 14px;
  color: var(--muted);
}
.warning strong {
  color: var(--text);
  font-weight: 600;
}

.sheet {
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
caption {
  text-align: left;
  padding: 12px 16px;
  font: 500 13px/1.4 var(--mono);
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
caption span {
  float: right;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 12px;
  color: var(--muted);
}
th {
  text-align: left;
  font: 600 12px/1.4 var(--sans);
  color: var(--muted);
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
}
td {
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  vertical-align: top;
  color: var(--muted);
}
tbody tr:first-child td {
  border-top: 0;
}
td:first-child {
  font: 400 13px/1.55 var(--mono);
  color: var(--text);
  white-space: nowrap;
}
td:last-child {
  font: 400 12px/1.55 var(--mono);
  white-space: nowrap;
}
.fine {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--muted);
}
.fine strong {
  color: var(--text);
  font-weight: 600;
}
.fine + .sheet {
  margin-top: 32px;
}

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  counter-reset: step;
}
.steps > li {
  counter-increment: step;
}
.steps h3 {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 15px;
  font-weight: 600;
  margin: 0 0 8px;
}
.steps h3::before {
  content: counter(step);
  font: 600 12px/1 var(--mono);
  color: var(--muted);
}
.steps p {
  margin: 0 0 8px;
  color: var(--muted);
}
.steps p:last-child {
  margin-bottom: 0;
}
pre {
  margin: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  font: 400 13px/1.7 var(--mono);
  padding: 16px;
  border-radius: 10px;
  overflow-x: auto;
}
pre:focus-visible {
  outline: 2px solid var(--text);
  outline-offset: 2px;
}
pre .p {
  color: var(--yellow);
  user-select: none;
}
pre .c {
  color: #8e8b84;
}
.steps .label {
  font: 600 12px/1.4 var(--sans);
  color: var(--muted);
  margin: 16px 0 8px;
}

footer {
  padding-bottom: 40px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
}
footer p {
  margin: 0;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

@media (max-width: 560px) {
  header {
    padding: 32px 0 40px;
  }
  .icon {
    margin-bottom: 32px;
  }
  h1 {
    font-size: 34px;
  }
  thead {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
  }
  tbody tr {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 2px 12px;
    padding: 12px 16px;
    border-top: 1px solid var(--border);
  }
  tbody tr:first-child {
    border-top: 0;
  }
  td {
    padding: 0;
    border: 0;
  }
  td:nth-child(2) {
    grid-column: 1 / -1;
    grid-row: 2;
  }
  td:last-child {
    text-align: right;
  }
}