:root {
  --bg: #f4f1ea;
  --bg-elev: #fffdf8;
  --ink: #1c1914;
  --muted: #5c564c;
  --line: #d9d2c5;
  --accent: #8a3b12;
  --accent-soft: #f3e4d6;
  --admit: #1f4d3a;
  --decide: #1d3d6e;
  --execute: #6b3a12;
  --finalize: #4a2d6b;
  --code-bg: #221f1a;
  --code-ink: #f4efe4;
  --mono: "IBM Plex Mono", "SF Mono", ui-monospace, monospace;
  --sans: "Iowan Old Style", "Palatino Linotype", Palatino, "Songti SC",
    "Source Han Serif SC", serif;
  --ui: "Avenir Next", "PingFang SC", "Noto Sans SC", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: var(--sans);
  font-size: 18px;
  line-height: 1.65;
}

a {
  color: var(--accent);
}

.shell {
  display: grid;
  grid-template-columns: 248px minmax(0, 1fr);
  min-height: 100vh;
}

nav {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: auto;
  padding: 28px 20px 40px;
  border-right: 1px solid var(--line);
  background: #efe8db;
  font-family: var(--ui);
  font-size: 13px;
}

nav .brand {
  display: block;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
  margin-bottom: 6px;
}

nav .sub {
  color: var(--muted);
  margin-bottom: 22px;
}

nav a {
  display: block;
  color: var(--muted);
  text-decoration: none;
  padding: 5px 0;
}

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

nav .group {
  margin-top: 16px;
  font-weight: 700;
  color: var(--ink);
}

main {
  padding: 48px 56px 96px;
  max-width: 980px;
}

.kicker {
  font-family: var(--ui);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

h1,
h2,
h3 {
  font-weight: 700;
  line-height: 1.25;
}

h1 {
  font-size: 42px;
  margin: 8px 0 12px;
}

h2 {
  margin-top: 56px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 28px;
}

h3 {
  margin-top: 32px;
  font-size: 20px;
}

.lead {
  font-size: 22px;
  color: var(--muted);
  max-width: 40em;
}

.meta {
  font-family: var(--ui);
  font-size: 13px;
  color: var(--muted);
}

.card-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin: 28px 0;
}

.card {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  padding: 14px 14px 16px;
}

.card b {
  display: block;
  font-family: var(--ui);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.card.admit b {
  color: var(--admit);
}
.card.decide b {
  color: var(--decide);
}
.card.execute b {
  color: var(--execute);
}
.card.finalize b {
  color: var(--finalize);
}

.card p {
  margin: 0;
  font-size: 15px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--ui);
  font-size: 14px;
  background: var(--bg-elev);
  margin: 16px 0 28px;
}

th,
td {
  border: 1px solid var(--line);
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
}

th {
  background: #efe8db;
  font-weight: 700;
}

code,
pre {
  font-family: var(--mono);
}

code {
  font-size: 0.86em;
  background: var(--accent-soft);
  padding: 0 4px;
}

pre {
  background: var(--code-bg);
  color: var(--code-ink);
  padding: 16px 18px;
  overflow: auto;
  font-size: 13px;
  line-height: 1.5;
}

pre code {
  background: none;
  color: inherit;
  padding: 0;
}

.note {
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  padding: 10px 14px;
  font-family: var(--ui);
  font-size: 15px;
}

.journey {
  display: grid;
  gap: 0;
  margin: 20px 0 32px;
  border: 1px solid var(--line);
  background: var(--bg-elev);
}

.step {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 16px;
  padding: 14px 16px;
  border-top: 1px solid var(--line);
}

.step:first-child {
  border-top: 0;
}

.step .tag {
  font-family: var(--ui);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding-top: 4px;
}

.tag.admit {
  color: var(--admit);
}
.tag.decide {
  color: var(--decide);
}
.tag.execute {
  color: var(--execute);
}
.tag.finalize {
  color: var(--finalize);
}

.step h4 {
  margin: 0 0 4px;
  font-size: 17px;
}

.step p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

ul.tight > li {
  margin: 4px 0;
}

footer {
  margin-top: 72px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-family: var(--ui);
  font-size: 13px;
  color: var(--muted);
}

@media (max-width: 880px) {
  .shell {
    grid-template-columns: 1fr;
  }
  nav {
    position: relative;
    height: auto;
  }
  main {
    padding: 28px 20px 64px;
  }
  .card-row {
    grid-template-columns: 1fr 1fr;
  }
}