/* ------------------------------------------------------------------
   Shared tokens + base for the writing pages.
   Same design system as index.html: plotter-pen palette, Iowan Old
   Style display, Cascadia Mono for data. No build step.
   ------------------------------------------------------------------ */

:root {
  --bg:        #EAE7DF;
  --bg-deep:   #DFDBD1;
  --surface:   #F5F3ED;
  --surface-2: #FBFAF6;
  --text:      #15181E;
  --muted:     #565B64;
  --faint:     #5D6168;   /* 5.0:1 on the paper background (was 4.1:1) */
  --rule:      #C7C3B8;
  --rule-soft: #D9D6CC;
  --accent:    #1F4B99;
  --accent-ink:#173A78;
  --accent-lift: #2E63BC;
  --accent-wash: rgba(31,75,153,.085);
  --accent-glow: rgba(31,75,153,.16);
  --flag:      #A8402F;
  --flag-wash: rgba(168,64,47,.09);
  --ok:        #3F6B4F;
  --draft-bg:  rgba(168,64,47,.055);
  --shadow:    0 1px 2px rgba(20,24,32,.05), 0 8px 24px -12px rgba(20,24,32,.14);
  --shadow-lift: 0 2px 4px rgba(20,24,32,.06), 0 18px 44px -18px rgba(20,24,32,.22);
  --ease: cubic-bezier(.22,.61,.36,1);

  --serif: "Iowan Old Style","Palatino Linotype",Palatino,"Book Antiqua","Hoefler Text",Georgia,serif;
  --sans: "Segoe UI Variable Text","Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  --mono: ui-monospace,"Cascadia Mono","Cascadia Code",Consolas,"SF Mono",Menlo,"DejaVu Sans Mono",monospace;

  --s1: .375rem; --s2: .75rem; --s3: 1.25rem; --s4: 2rem; --s5: 3.25rem; --s6: 5rem;
  --measure: 34em;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
  --bg:#0D1117; --bg-deep:#080B10; --surface:#141920; --surface-2:#1A2029;
  --text:#E2E6EB; --muted:#939BA6; --faint:#7C858F;
  --rule:#272E38; --rule-soft:#1D232B; --accent:#7FA6E8; --accent-ink:#A9C4F1;
  --accent-lift:#9DBCF0; --accent-wash: rgba(127,166,232,.10);
  --accent-glow: rgba(127,166,232,.20);
  --flag:#E08472; --flag-wash: rgba(224,132,114,.11); --ok:#7CB68F;
  --draft-bg: rgba(224,132,114,.07);
  --shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 24px -12px rgba(0,0,0,.6);
  --shadow-lift: 0 2px 4px rgba(0,0,0,.45), 0 18px 44px -18px rgba(0,0,0,.75);
  }
}
:root[data-theme="dark"] {
  --bg:#0D1117; --bg-deep:#080B10; --surface:#141920; --surface-2:#1A2029;
  --text:#E2E6EB; --muted:#939BA6; --faint:#7C858F;
  --rule:#272E38; --rule-soft:#1D232B; --accent:#7FA6E8; --accent-ink:#A9C4F1;
  --accent-lift:#9DBCF0; --accent-wash: rgba(127,166,232,.10);
  --accent-glow: rgba(127,166,232,.20);
  --flag:#E08472; --flag-wash: rgba(224,132,114,.11); --ok:#7CB68F;
  --draft-bg: rgba(224,132,114,.07);
  --shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 24px -12px rgba(0,0,0,.6);
  --shadow-lift: 0 2px 4px rgba(0,0,0,.45), 0 18px 44px -18px rgba(0,0,0,.75);
}
:root[data-theme="light"] {
  --bg:        #EAE7DF;
  --bg-deep:   #DFDBD1;
  --surface:   #F5F3ED;
  --surface-2: #FBFAF6;
  --text:      #15181E;
  --muted:     #565B64;
  --faint:     #5D6168;   /* 5.0:1 on the paper background (was 4.1:1) */
  --rule:      #C7C3B8;
  --rule-soft: #D9D6CC;
  --accent:    #1F4B99;
  --accent-ink:#173A78;
  --accent-lift: #2E63BC;
  --accent-wash: rgba(31,75,153,.085);
  --accent-glow: rgba(31,75,153,.16);
  --flag:      #A8402F;
  --flag-wash: rgba(168,64,47,.09);
  --ok:        #3F6B4F;
  --draft-bg:  rgba(168,64,47,.055);
  --shadow:    0 1px 2px rgba(20,24,32,.05), 0 8px 24px -12px rgba(20,24,32,.14);
  --shadow-lift: 0 2px 4px rgba(20,24,32,.06), 0 18px 44px -18px rgba(20,24,32,.22);
  --ease: cubic-bezier(.22,.61,.36,1);
}

html { -webkit-text-size-adjust: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.62;
  margin: 0;
  overflow-x: hidden;
}
::selection { background: var(--accent-wash); }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 1px; }

.wrap { max-width: 1180px; margin: 0 auto; padding: 0 var(--s3); }

.eyebrow {
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--faint);
  margin: 0;
}

/* ---------- site bar ---------- */
.bar {
  border-bottom: 1px solid var(--rule);
  padding: var(--s3) 0;
}
.bar .wrap { display: flex; flex-wrap: wrap; gap: var(--s2) var(--s4); align-items: baseline; justify-content: space-between; }
.bar .name {
  font-family: var(--serif);
  font-size: 1.05rem;
  text-decoration: none;
}
.bar nav { display: flex; gap: var(--s3); }
.bar nav a {
  font-size: .8rem;
  text-decoration: none;
  color: var(--muted);
  padding-bottom: .15rem;
  border-bottom: 1px solid transparent;
}
.bar nav a:hover { color: var(--text); }
.bar nav a[aria-current="page"] { color: var(--accent-ink); border-bottom-color: var(--accent); }

/* ---------- shared blocks ---------- */
code {
  font-family: var(--mono);
  font-size: .87em;
  background: var(--accent-wash);
  padding: .08em .35em;
  border-radius: 2px;
}

.figs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(155px, 1fr));
  gap: var(--s3);
  margin: 0;
  padding: var(--s3);
  background: var(--surface-2);
  border: 1px solid var(--rule-soft);
  border-radius: 6px;
}
.figs > div { display: grid; gap: .15rem; }
.figs dt {
  font-size: .8rem; color: var(--faint); order: 2;
}
.figs dd {
  margin: 0; order: 1; font-family: var(--mono);
  font-variant-numeric: tabular-nums; font-size: 1.18rem; font-weight: 600;
  letter-spacing: -.015em; color: var(--text); line-height: 1.25;
}
.figs dd small { font-size: .8rem; font-weight: 400; color: var(--muted); letter-spacing: 0; }

/* draft scaffolding — delete these as you write */
.draft {
  border: 1px dashed var(--flag);
  background: var(--draft-bg);
  border-radius: 2px;
  padding: var(--s3);
  margin: var(--s3) 0;
  display: grid;
  gap: var(--s2);
  max-width: var(--measure);
}
.draft > p.eyebrow { color: var(--flag); }
.draft p, .draft li { font-size: .9rem; color: var(--muted); margin: 0; }
.draft ul { margin: 0; padding-left: 1.1rem; display: grid; gap: .35rem; }
.draft li::marker { color: var(--flag); }
.draft strong { color: var(--text); }

footer.colophon { border-top: 1px solid var(--rule); padding: var(--s4) 0 var(--s5); margin-top: var(--s5); }
footer.colophon p { margin: .5rem 0 0; color: var(--muted); font-size: .92rem; max-width: 30em; }
footer.colophon a { color: var(--accent-ink); }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }

/* ---------- theme toggle (shared with index.html) ---------- */
.themebtn {
  appearance: none; cursor: pointer;
  display: inline-grid; place-items: center;
  width: 30px; height: 30px; padding: 0;
  background: transparent;
  border: 1px solid var(--rule);
  border-radius: 50%;
  color: var(--muted);
  transition: color .18s, border-color .18s, background .18s, transform .18s var(--ease);
  flex: none;
}
.themebtn:hover {
  color: var(--accent-ink); border-color: var(--accent);
  background: var(--accent-wash); transform: rotate(-18deg);
}
.themebtn svg { width: 15px; height: 15px; display: block; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; }
.themebtn .i-sun { display: none; }
.themebtn .i-moon { display: block; }
:root[data-theme="dark"] .themebtn .i-sun { display: block; }
:root[data-theme="dark"] .themebtn .i-moon { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .themebtn .i-sun { display: block; }
  :root:not([data-theme="light"]) .themebtn .i-moon { display: none; }
}
@media (prefers-reduced-motion: reduce) { .themebtn:hover { transform: none; } }