:root {
  --paper:      #fbfcfd;
  --ink:        #17222e;
  --slate:      #55687a;
  --rule:       #dde4ea;
  --accent:     #13655f;
  --accent-dim: #eaf1f0;
  --serif: Georgia, "Iowan Old Style", "Times New Roman", serif;
  --sans:  system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono:  ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper:      #12181e;
    --ink:        #e7edf2;
    --slate:      #9aabb9;
    --rule:       #27333d;
    --accent:     #63c3b8;
    --accent-dim: #1a262a;
  }
}

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

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 47rem;
  margin: 0 auto;
  padding: 0 1.5rem 5rem;
}

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }

h1, h2, h3 { font-family: var(--serif); font-weight: 600; letter-spacing: -0.01em; }

/* ---------- masthead ---------- */

header.masthead {
  padding: 4.5rem 0 2.5rem;
  border-bottom: 1px solid var(--rule);
}

h1 {
  font-size: clamp(2.3rem, 6.5vw, 3.4rem);
  line-height: 1.08;
  margin: 0 0 1.1rem;
}

.standfirst {
  font-size: 1.16rem;
  color: var(--slate);
  margin: 0 0 2rem;
  max-width: 34rem;
}

.contact {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.75rem;
  margin: 0;
  padding: 0;
  font-size: 0.97rem;
}

/* ---------- sections ---------- */

section { padding-top: 3.25rem; }

h2 {
  font-size: 1.32rem;
  margin: 0 0 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--rule);
}

p { margin: 0 0 1.05rem; }
p.lede { max-width: 38rem; }

/* ---------- career: year rail ---------- */

.entry {
  display: grid;
  grid-template-columns: 8.5rem 1fr;
  gap: 0 1.75rem;
  padding-bottom: 2.25rem;
}

.years {
  font-family: var(--mono);
  font-size: 0.83rem;
  color: var(--slate);
  padding-top: 0.42rem;
  font-variant-numeric: tabular-nums;
}

h3 {
  font-size: 1.07rem;
  margin: 0 0 0.15rem;
  line-height: 1.35;
}

.org {
  color: var(--slate);
  font-size: 0.95rem;
  margin: 0 0 0.7rem;
}

.entry ul, .plain-list {
  margin: 0;
  padding-left: 1.05rem;
}

.entry li, .plain-list li { margin-bottom: 0.5rem; }

/* ---------- stack table ---------- */

.stack {
  display: grid;
  grid-template-columns: 9.5rem 1fr;
  gap: 0.65rem 1.75rem;
  font-size: 0.97rem;
  margin: 0 0 1.5rem;
}

.stack dt {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--slate);
  padding-top: 0.22rem;
}

.stack dd { margin: 0; }

.note {
  background: var(--accent-dim);
  border-left: 2px solid var(--accent);
  padding: 1rem 1.15rem;
  font-size: 0.95rem;
}

.note p:last-child { margin-bottom: 0; }

footer {
  margin-top: 3.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--rule);
  font-size: 0.9rem;
  color: var(--slate);
}

@media (max-width: 34rem) {
  body { font-size: 16px; }
  header.masthead { padding-top: 3rem; }
  .entry, .stack { grid-template-columns: 1fr; gap: 0; }
  .years { padding: 0 0 0.3rem; }
  .stack dt { padding-top: 0.75rem; }
}

/* ---------- site bar (shared navigation) ---------- */

.sitebar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.5rem 1.5rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--rule);
}

.sitebar .home {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--ink);
  text-decoration: none;
}

.sitebar ul {
  list-style: none;
  display: flex;
  gap: 1.4rem;
  margin: 0;
  padding: 0;
  font-size: 0.97rem;
}

.sitebar nav a { color: var(--slate); text-decoration: none; }
.sitebar nav a:hover { color: var(--ink); text-decoration: underline; }
.sitebar nav a[aria-current="page"] {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-decoration-thickness: 2px;
}

header.masthead { padding-top: 3.5rem; }

/* ---------- landing: onward links ---------- */

.onward {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem 2rem;
  margin: 0;
}

.onward p { margin: 0; }
.onward a { font-family: var(--serif); font-weight: 600; font-size: 1.07rem; }
.onward span { display: block; color: var(--slate); font-size: 0.95rem; margin-top: 0.2rem; }

/* ---------- about: prose entries ---------- */

.entry .summary { margin: 0; }

/* ---------- faq ---------- */

.prose p, .prose ul { max-width: 38rem; }
.prose ul { padding-left: 1.05rem; margin: 0 0 1.05rem; }
.prose li { margin-bottom: 0.5rem; }

.faq h3 {
  font-size: 1.1rem;
  margin: 2.25rem 0 0.6rem;
}

.faq h2 + h3 { margin-top: 0; }

.toc {
  list-style: none;
  margin: 0;
  padding: 0;
  columns: 2;
  column-gap: 2rem;
  font-size: 0.95rem;
}

.toc li { break-inside: avoid; margin-bottom: 0.45rem; }

code {
  font-family: var(--mono);
  font-size: 0.86em;
  background: var(--accent-dim);
  padding: 0.08em 0.35em;
  border-radius: 3px;
}

@media (max-width: 34rem) {
  header.masthead { padding-top: 2.5rem; }
  .onward { grid-template-columns: 1fr; }
  .toc { columns: 1; }
}