:root {
  --paper: #efebe2;
  --paper-2: #e6e0d3;
  --ink: #1d1b18;
  --ink-soft: #57524a;
  --rule: #cfc7b6;
  --accent: #e0461c;
  --code-bg: #1d1b18;
  --code-ink: #efe9dc;
  --display: "Unbounded", "Onest", sans-serif;
  --text: "Onest", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 18px/1.6 var(--text);
}

a { color: inherit; text-decoration-color: var(--accent); text-underline-offset: 3px; }
a:hover { color: var(--accent); }

.wrap { max-width: 1180px; margin: 0 auto; padding: 0 28px; }

.top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 22px 0;
  border-bottom: 2px solid var(--ink);
  font-size: 15px;
}
.brand { font-family: var(--display); font-weight: 700; font-size: 15px; text-decoration: none; letter-spacing: -0.01em; }
.brand b { color: var(--accent); }
.top nav { display: flex; gap: 22px; }
.top nav a { text-decoration: none; font-family: var(--mono); font-size: 14px; }
.top nav a[aria-current] { color: var(--accent); }

.hero { padding: 56px 0 40px; border-bottom: 2px solid var(--ink); }

.msg {
  display: inline-block;
  max-width: 420px;
  background: #fff;
  border-radius: 14px 14px 14px 4px;
  padding: 10px 14px 8px;
  font-size: 15px;
  line-height: 1.45;
  box-shadow: 0 1px 0 var(--rule);
}
.msg .from { display: block; font-weight: 600; font-size: 13px; color: #3b7fbf; margin-bottom: 2px; }
.msg .kw { color: #2a72b5; text-decoration: underline; font-weight: 600; }
.msg time { display: block; text-align: right; font-size: 11px; color: #9a958b; }

.word {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(38px, 11.2vw, 150px);
  white-space: nowrap;
  line-height: 0.86;
  letter-spacing: -0.045em;
  margin: 28px 0 0;
  text-transform: uppercase;
  word-break: break-word;
}
.word .cursor {
  display: inline-block;
  width: 0.09em;
  height: 0.72em;
  background: var(--accent);
  margin-left: 0.06em;
  vertical-align: baseline;
}

.lead {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 48px;
  margin-top: 40px;
  align-items: end;
}
.lead h1 {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(24px, 2.6vw, 34px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0;
}
.lead p { margin: 0; font-size: 19px; color: var(--ink-soft); max-width: 60ch; }

.facts {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin-top: 36px;
  border-top: 1px solid var(--rule);
}
.facts div { padding: 14px 28px 0 0; margin-right: 28px; font-size: 15px; }
.facts dt { font-family: var(--mono); font-size: 12px; color: var(--ink-soft); }
.facts dd { margin: 2px 0 0; font-weight: 600; }

.sec {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 48px;
  padding: 56px 0;
  border-bottom: 1px solid var(--rule);
}
.sec > .side { position: relative; }
.sec > .side .sticky { position: sticky; top: 24px; }
.sec h2 {
  font-family: var(--display);
  font-weight: 700;
  font-size: 26px;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0;
}
.side .note { font-family: var(--mono); font-size: 13px; color: var(--ink-soft); margin-top: 10px; line-height: 1.5; }
.side .note b { color: var(--accent); font-weight: 500; }

.body { max-width: 760px; }
.body > *:first-child { margin-top: 0; }
.body p { margin: 0 0 16px; }
.body h3 { font-size: 20px; margin: 36px 0 10px; font-weight: 700; }
.body ul { padding-left: 1.1em; margin: 0 0 16px; }
.body li { margin-bottom: 6px; }
.body li::marker { color: var(--accent); }

.warn {
  background: var(--ink);
  color: var(--paper);
  padding: 22px 26px;
  margin: 0;
  font-size: 17px;
}
.warn strong { color: #ff8a5c; }

code { font-family: var(--mono); font-size: 0.86em; background: var(--paper-2); padding: 1px 5px; border-radius: 3px; }

.code {
  position: relative;
  margin: 14px 0 22px;
  background: var(--code-bg);
  color: var(--code-ink);
  border-radius: 6px;
  overflow: hidden;
}
.code pre {
  margin: 0;
  padding: 18px 20px;
  overflow-x: auto;
  font: 400 14.5px/1.6 var(--mono);
}
.code code { background: none; padding: 0; font-size: inherit; color: inherit; }
.code .c { color: #9a927f; }
.code .k { color: #ff8a5c; }
.code .s { color: #c9d98b; }
.code-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 10px 8px 20px;
  border-bottom: 1px solid #3a3631;
  font: 500 12px var(--mono);
  color: #9a927f;
}
.copy {
  font: 500 12px var(--mono);
  background: transparent;
  color: var(--code-ink);
  border: 1px solid #4a453e;
  border-radius: 4px;
  padding: 4px 10px;
  cursor: pointer;
}
.copy:hover { border-color: var(--accent); color: #ff8a5c; }
.copy.done { border-color: #c9d98b; color: #c9d98b; }

.os { display: inline-flex; border: 2px solid var(--ink); margin-bottom: 8px; }
.os button {
  font: 600 14px var(--text);
  background: transparent;
  border: 0;
  padding: 7px 16px;
  cursor: pointer;
  color: var(--ink);
}
.os button[aria-pressed="true"] { background: var(--ink); color: var(--paper); }
[data-os="mac"] .only-win, [data-os="win"] .only-mac { display: none; }

.step { margin: 0 0 44px; }
.step:last-child { margin-bottom: 0; }
.step h3 { display: flex; gap: 14px; align-items: baseline; margin: 0 0 10px; font-size: 21px; }
.step h3 span { font-family: var(--mono); font-weight: 500; font-size: 14px; color: var(--accent); white-space: nowrap; }

.need { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--rule); }
.need li { display: grid; grid-template-columns: 170px 1fr; gap: 20px; padding: 12px 0; border-bottom: 1px solid var(--rule); margin: 0; }
.need li b { font-weight: 700; }
.need li span { color: var(--ink-soft); }

.compare { width: 100%; border-collapse: collapse; font-size: 16px; }
.compare th, .compare td { text-align: left; padding: 11px 12px 11px 0; border-bottom: 1px solid var(--rule); vertical-align: top; }
.compare th { font-family: var(--mono); font-weight: 500; font-size: 13px; color: var(--ink-soft); border-bottom: 2px solid var(--ink); }

.prompt {
  border-left: 3px solid var(--accent);
  padding: 4px 0 4px 18px;
  margin: 0 0 22px;
}
.prompt small { display: block; font-family: var(--mono); font-size: 12px; color: var(--ink-soft); margin-bottom: 4px; }
.prompt p { margin: 0 0 8px; font-size: 17px; }
.prompt .copy { color: var(--ink); border-color: var(--rule); }
.prompt .copy.done { color: #4f6b16; border-color: #4f6b16; }

.check { list-style: none; padding: 0; margin: 0; }
.check li { margin: 0; }
.check label { display: flex; gap: 14px; align-items: flex-start; padding: 12px 0; border-bottom: 1px solid var(--rule); cursor: pointer; }
.check input {
  appearance: none;
  flex: none;
  width: 22px;
  height: 22px;
  margin: 2px 0 0;
  border: 2px solid var(--ink);
  background: transparent;
  cursor: pointer;
  display: grid;
  place-content: center;
}
.check input:checked { background: var(--accent); border-color: var(--accent); }
.check input:checked::after { content: ""; width: 6px; height: 11px; border: solid var(--paper); border-width: 0 2.5px 2.5px 0; transform: rotate(45deg) translate(-1px, -1px); }
.check input:checked + span { text-decoration: line-through; text-decoration-color: var(--accent); color: var(--ink-soft); }
.check input:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.next {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  border-top: 2px solid var(--ink);
  margin-top: 0;
}
.next a {
  display: block;
  padding: 26px 24px 26px 0;
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
}
.next a small { font-family: var(--mono); font-size: 12px; color: var(--ink-soft); }
.next a strong { display: block; font-family: var(--display); font-weight: 800; font-size: 40px; letter-spacing: -0.03em; line-height: 1.05; margin-top: 6px; }
.next a:hover strong { color: var(--accent); }

.foot {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 26px 0 40px;
  font-size: 14px;
  color: var(--ink-soft);
}

.index-list { list-style: none; margin: 0; padding: 0; border-top: 2px solid var(--ink); }
.index-list li { border-bottom: 1px solid var(--rule); }
.index-list a {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr) 60px;
  gap: 32px;
  align-items: center;
  padding: 30px 0;
  text-decoration: none;
}
.index-list .kw {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(36px, 5.4vw, 68px);
  letter-spacing: -0.045em;
  line-height: 0.95;
}
.index-list p { margin: 0; color: var(--ink-soft); font-size: 17px; }
.index-list .go { font-family: var(--mono); font-size: 14px; text-align: right; }
.index-list a:hover .kw, .index-list a:hover .go { color: var(--accent); }

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

@media (max-width: 860px) {
  .lead { grid-template-columns: 1fr; gap: 18px; }
  .sec { grid-template-columns: 1fr; gap: 20px; padding: 40px 0; }
  .sec > .side .sticky { position: static; }
  .index-list a { grid-template-columns: 1fr; gap: 8px; padding: 22px 0; }
  .index-list .go { text-align: left; }
}

@media (max-width: 560px) {
  body { font-size: 17px; }
  .wrap { padding: 0 16px; }
  .top nav { gap: 14px; }
  .hero { padding-top: 32px; }
  .need li { grid-template-columns: 1fr; gap: 2px; }
  .code pre { font-size: 13px; padding: 14px; }
  .compare { font-size: 14px; }
  .step h3 { flex-direction: column; gap: 2px; }
}

.sec > *, .lead > *, .index-list a > * { min-width: 0; }
.body p code { white-space: nowrap; }

@media (max-width: 560px) {
  .index-list .kw { font-size: 40px; }
}