/* Fieldnote Press — shared stylesheet */

:root {
  --paper: #FBFAF7;
  --paper-sunk: #F2F1EC;
  --ink: #191B1D;
  --ink-soft: #55585A;
  --ink-faint: #83868A;
  --rule: #DDDAD2;
  --moss: #2E4A3C;
  --moss-tint: #E9EEEA;

  --display: "Instrument Serif", Georgia, "Times New Roman", serif;
  --text: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --measure: 40rem;
  --gutter: 15rem;
  --gap: 2.75rem;
  --step: 1.5rem;
}

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

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--text);
  font-size: 17px;
  line-height: 1.62;
  font-weight: 400;
  letter-spacing: -0.003em;
  -webkit-font-smoothing: antialiased;
}

/* ---------- skip link ---------- */

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--paper);
  padding: 0.75rem 1.15rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  z-index: 50;
}
.skip:focus { left: 0.75rem; top: 0.75rem; }

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

/* ---------- shell ---------- */

.shell {
  max-width: calc(var(--measure) + var(--gutter) + var(--gap) + 6rem);
  margin: 0 auto;
  padding: 0 3rem;
}

.spread {
  display: grid;
  grid-template-columns: minmax(0, var(--measure)) var(--gutter);
  column-gap: var(--gap);
  align-items: start;
}

.spread > .body { grid-column: 1; }
.spread > .margin { grid-column: 2; }

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

.masthead {
  border-bottom: 1px solid var(--rule);
  padding: 1.6rem 0 1.4rem;
  margin-bottom: 4rem;
}

.masthead-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem 2rem;
}

.wordmark {
  font-family: var(--display);
  font-size: 1.6rem;
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-decoration: none;
}
.wordmark:hover { color: var(--moss); }

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.4rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
}
.nav a {
  color: var(--ink-soft);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
}
.nav a:hover, .nav a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--moss);
}

/* ---------- hero ---------- */

.hero { padding-bottom: 1.5rem; }

.eyebrow {
  font-family: var(--mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.13em;
  color: var(--ink-faint);
  margin: 0 0 1.5rem;
}

h1 {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(2.4rem, 5.4vw, 3.7rem);
  line-height: 1.05;
  letter-spacing: -0.018em;
  margin: 0 0 1.4rem;
  text-wrap: balance;
}

.standfirst {
  font-size: 1.16rem;
  line-height: 1.55;
  color: var(--ink-soft);
  margin: 0;
  max-width: 34rem;
}

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

section { padding: 3.4rem 0; border-top: 1px solid var(--rule); }
section:first-of-type { border-top: none; }

h2 {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(1.7rem, 3.4vw, 2.15rem);
  line-height: 1.14;
  letter-spacing: -0.012em;
  margin: 0 0 1.5rem;
}

h3 {
  font-family: var(--text);
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.4;
  letter-spacing: -0.005em;
  margin: 2.2rem 0 0.6rem;
}

p { margin: 0 0 1.15rem; }
p:last-child { margin-bottom: 0; }

a { color: var(--moss); text-decoration: underline; text-underline-offset: 0.18em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }

strong { font-weight: 600; }

/* ---------- the signature: margin notes ---------- */

.margin {
  font-family: var(--mono);
  font-size: 0.73rem;
  line-height: 1.66;
  color: var(--ink-soft);
  letter-spacing: -0.005em;
}

.note { margin-bottom: 1.9rem; }
.note:last-child { margin-bottom: 0; }

.note-no {
  display: block;
  color: var(--moss);
  letter-spacing: 0.1em;
  margin-bottom: 0.4rem;
}

.note p { margin: 0 0 0.6rem; }
.note a { color: var(--ink-soft); }

.ref {
  font-family: var(--mono);
  font-size: 0.68em;
  vertical-align: super;
  line-height: 0;
  color: var(--moss);
  padding-left: 0.12em;
}

/* ---------- index of notes ---------- */

.index { border-top: 1px solid var(--rule); }

.entry {
  display: grid;
  grid-template-columns: 4.5rem 1fr;
  column-gap: 1.25rem;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--rule);
  text-decoration: none;
  color: var(--ink);
}
.entry:hover .entry-title { color: var(--moss); }
.entry:last-child { border-bottom: none; }

.entry-no {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.09em;
  color: var(--ink-faint);
  padding-top: 0.5rem;
}

.entry-title {
  display: block;
  font-family: var(--display);
  font-weight: 400;
  font-size: 1.5rem;
  line-height: 1.18;
  letter-spacing: -0.012em;
  margin: 0 0 0.4rem;
}

.entry-dek {
  display: block;
  font-size: 0.95rem;
  color: var(--ink-soft);
  margin: 0;
  max-width: 32rem;
}

/* ---------- lists ---------- */

.plain { list-style: none; padding: 0; margin: 0; }

.stack > li {
  padding: 1.15rem 0;
  border-top: 1px solid var(--rule);
}
.stack > li:first-child { border-top: none; padding-top: 0; }

.stack .label {
  font-family: var(--mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-faint);
  display: block;
  margin-bottom: 0.45rem;
}

.negation > li {
  padding-left: 1.5rem;
  position: relative;
  margin-bottom: 0.75rem;
  color: var(--ink-soft);
}
.negation > li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--moss);
}
.negation > li:last-child { margin-bottom: 0; }

ol.numbered { padding-left: 1.3rem; margin: 0; }
ol.numbered li { margin-bottom: 0.7rem; }

ul.bullets { padding-left: 1.15rem; margin: 0 0 1.15rem; }
ul.bullets li { margin-bottom: 0.5rem; }

/* ---------- panel ---------- */

.panel {
  background: var(--paper-sunk);
  padding: 1.9rem 2rem;
  margin: 0;
}

.panel-moss {
  background: var(--moss-tint);
  padding: 1.9rem 2rem;
}

/* ---------- article ---------- */

.article-head { padding-bottom: 2.6rem; border-bottom: 1px solid var(--rule); margin-bottom: 2.6rem; }
.article-head h1 { font-size: clamp(2rem, 4.4vw, 2.9rem); }

.dateline {
  font-family: var(--mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-faint);
  margin: 1.4rem 0 0;
}

.article-body h2 {
  font-family: var(--text);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: -0.005em;
  margin: 2.4rem 0 0.75rem;
  line-height: 1.4;
}

.caveat {
  border-left: 2px solid var(--moss);
  padding: 0.15rem 0 0.15rem 1.15rem;
  margin: 2rem 0;
  color: var(--ink-soft);
  font-size: 0.97rem;
}

.sources {
  margin-top: 3rem;
  padding-top: 1.6rem;
  border-top: 1px solid var(--rule);
  font-size: 0.88rem;
  color: var(--ink-soft);
}
.sources h2 {
  font-family: var(--mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.11em;
  font-weight: 400;
  color: var(--ink-faint);
  margin: 0 0 1rem;
}
.sources li { margin-bottom: 0.7rem; }

/* ---------- legal ---------- */

.legal-body h2 {
  font-family: var(--text);
  font-weight: 600;
  font-size: 1.02rem;
  margin: 2.4rem 0 0.7rem;
  line-height: 1.4;
}
.legal-body h2:first-of-type { margin-top: 0; }
.legal-body { font-size: 16px; }

/* ---------- footer ---------- */

.foot {
  border-top: 1px solid var(--rule);
  margin-top: 5rem;
  padding: 2.5rem 0 4rem;
  font-size: 0.87rem;
  color: var(--ink-soft);
}

.foot-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.5rem;
  font-family: var(--mono);
  font-size: 0.71rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  margin-bottom: 1.6rem;
}
.foot-nav a { color: var(--ink-soft); text-decoration: none; }
.foot-nav a:hover { color: var(--moss); }

.colophon { max-width: 34rem; margin: 0; color: var(--ink-faint); font-size: 0.82rem; }
.colophon p { margin-bottom: 0.6rem; }

/* ---------- 404 ---------- */

.notfound { padding: 6rem 0 4rem; }
.notfound .code {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--moss);
  margin-bottom: 1.5rem;
}

/* ---------- responsive ---------- */

@media (max-width: 1020px) {
  .shell { padding: 0 2rem; max-width: 46rem; }
  .spread { display: block; }
  .margin {
    margin-top: 2.25rem;
    border-top: 1px solid var(--rule);
    padding-top: 1.5rem;
  }
  .note { margin-bottom: 1.4rem; }
}

@media (max-width: 620px) {
  body { font-size: 16px; }
  .shell { padding: 0 1.35rem; }
  .masthead { padding: 1.2rem 0 1.1rem; margin-bottom: 2.5rem; }
  .masthead-inner { flex-direction: column; align-items: flex-start; gap: 0.9rem; }
  .nav { gap: 1rem; font-size: 0.68rem; }
  section { padding: 2.6rem 0; }
  .entry { grid-template-columns: 1fr; row-gap: 0.5rem; }
  .entry-no { padding-top: 0; }
  .entry-title { font-size: 1.28rem; }
  .panel, .panel-moss { padding: 1.4rem 1.35rem; }
  .hero { padding-bottom: 2.4rem; }
}

@media (max-width: 380px) {
  .shell { padding: 0 1rem; }
  h1 { font-size: 2.05rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

@media print {
  .nav, .foot-nav { display: none; }
  body { background: #fff; }
}