:root {
  --paper: #f5f4ef;
  --paper-2: #eae8e1;
  --ink: #232019;
  --ink-soft: #5a564c;
  --ink-faint: #635f54;
  --line: rgba(35, 32, 25, 0.14);
  --signal: #7a1e49;
  --signal-soft: #f0dde7;
  --teal: #008ba3;
  --teal-text: #006375;
  --noise: #b7b0a0;
  --serif: "Lora", "Iowan Old Style", ui-serif, Georgia, serif;
  --sans: "IBM Plex Sans", -apple-system, sans-serif;
  --mono: "IBM Plex Sans", -apple-system, sans-serif;
  --max: 64rem;
  color-scheme: light;
}

* { box-sizing: border-box; }

::selection {
  background: var(--signal);
  color: var(--paper);
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(122, 30, 73, 0.06), transparent),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.035'/%3E%3C/svg%3E");
}

a { color: inherit; }

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.label {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 1rem;
  letter-spacing: 0.1em;
  color: var(--teal-text);
  display: flex;
  align-items: center;
  gap: 0.6em;
}
.label::before {
  content: "";
  width: 1.4em;
  height: 1px;
  background: var(--ink-faint);
  display: inline-block;
}

/* ---------- Nav ---------- */
header.site {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(6px);
  background: rgba(245, 244, 239, 0.85);
  border-bottom: 1px solid var(--line);
}
header.site .wrap {
  max-width: 64rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.9rem;
  padding-bottom: 0.9rem;
}
.wordmark {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: 0.01em;
  text-decoration: none;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: none;
}
.wordmark svg { width: 20px; height: 20px; flex: none; }

.nav-links {
  list-style: none;
  display: flex;
  gap: 1.7rem;
  margin: 0;
  padding: 0;
}
.nav-links a {
  font-family: var(--mono);
  font-size: 1rem;
  letter-spacing: 0.02em;
  text-decoration: none;
  color: var(--teal-text);
  padding-bottom: 0.2rem;
  border-bottom: 1px solid var(--teal-text);
  transition: color 0.15s ease, border-color 0.15s ease;
}
.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--teal);
  border-color: var(--teal);
}

.nav-toggle {
  display: none;
  width: 34px;
  height: 34px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: none;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex: none;
}
.nav-toggle svg { width: 16px; height: 16px; display: block; }

.nav-drawer { display: none; }

@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .nav-toggle { display: flex; }
  .nav-drawer {
    display: block;
    max-height: 0;
    overflow: hidden;
    border-bottom: 1px solid var(--line);
    background: var(--paper-2);
    transition: max-height 0.25s ease;
  }
  .nav-drawer.open { max-height: 20rem; }
  .nav-drawer ul {
    list-style: none;
    margin: 0;
    padding: 0.6rem 1.5rem 1.2rem;
    display: grid;
    gap: 0.9rem;
  }
  .nav-drawer a {
    font-family: var(--mono);
    font-size: 1rem;
    text-decoration: none;
    color: var(--teal-text);
  }
}

.nav-cta {
  font-family: var(--mono);
  font-size: 1rem;
  letter-spacing: 0.04em;
  text-decoration: none;
  border: 1px solid var(--ink);
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  transition: background 0.2s ease, color 0.2s ease;
  white-space: nowrap;
}
.nav-cta:hover { background: var(--ink); color: var(--paper); }

/* ---------- Hero ---------- */
.hero {
  padding: 4.5rem 0 3rem;
  max-width: 64rem;
  margin: 0 auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}
.hero h1 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(2.1rem, 5.5vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin: 0 0 1.4rem;
  max-width: 20ch;
}
.hero h1 em {
  font-style: normal;
  font-weight: 400;
  color: var(--teal);
}
.hero .sub {
  font-size: 1.15rem;
  color: var(--ink-soft);
  max-width: 42rem;
  margin: 0 0 2.2rem;
}
.hero .actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 3rem;
}

/* ---------- Page hero (subpages) ---------- */
.page-hero {
  padding: 3.6rem 0 3rem;
  max-width: 64rem;
  margin: 0 auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
  border-bottom: 1px solid var(--line);
}
.page-hero h1 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(1.9rem, 4.5vw, 2.7rem);
  line-height: 1.12;
  letter-spacing: -0.01em;
  margin: 1.1rem 0 1.1rem;
  max-width: 22ch;
}
.page-hero .sub {
  font-size: 1.08rem;
  color: var(--ink-soft);
  max-width: 40rem;
  margin: 0;
}
.page-hero .actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
  margin-top: 1.8rem;
}
.btn {
  font-family: var(--mono);
  font-size: 1rem;
  letter-spacing: 0.03em;
  text-decoration: none;
  padding: 0.75rem 1.3rem;
  border-radius: 999px;
  display: inline-block;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn-primary {
  background: var(--signal);
  color: var(--paper);
  box-shadow: 0 1px 0 rgba(0,0,0,0.1);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 4px 14px rgba(122,30,73,0.35); }
.btn-ghost {
  color: var(--teal-text);
  border-bottom: 1px solid var(--teal-text);
  border-radius: 0;
  padding: 0.75rem 0;
}
.btn-ghost:hover { color: var(--teal); border-color: var(--teal); }

.wave {
  width: 100%;
  height: auto;
  display: block;
}
.wave path { fill: none; stroke-linecap: round; stroke-linejoin: round; }
.wave .noise { stroke: var(--noise); stroke-width: 1.6; }
.wave .signal { stroke: var(--signal); stroke-width: 2.2; }
.wave .signal {
  stroke-dasharray: 900;
  stroke-dashoffset: 900;
  animation: draw 2.4s 0.3s cubic-bezier(.16,.8,.24,1) forwards;
}
@keyframes draw { to { stroke-dashoffset: 0; } }
@media (prefers-reduced-motion: reduce) {
  .wave .signal { animation: none; stroke-dashoffset: 0; }
}

/* ---------- Sections ---------- */
section {
  padding: 3.6rem 0;
  border-top: 1px solid var(--line);
}
section .wrap { max-width: var(--max); }
section h2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(1.5rem, 3vw, 1.9rem);
  margin: 0.9rem 0 1.1rem;
  letter-spacing: -0.005em;
}
section p { color: var(--ink-soft); margin: 0 0 1.1rem; }
section p:last-child { margin-bottom: 0; }
.lede { font-size: 1.08rem; color: var(--ink); }

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.in { opacity: 1; transform: none; }

/* ---------- Stats ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.4rem;
  margin-top: 1.8rem;
  max-width: 32rem;
}
.stat {
  border-left: 2px solid var(--signal);
  padding-left: 0.9rem;
}
.stat .num {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(1.5rem, 4vw, 2.1rem);
  display: block;
  line-height: 1.1;
}
.stat .cap {
  font-family: var(--mono);
  font-size: 1rem;
  color: var(--ink-faint);
  letter-spacing: 0.03em;
  display: block;
  margin-top: 0.35rem;
}
@media (max-width: 640px) {
  .stats { grid-template-columns: 1fr; gap: 1.1rem; }
}

/* ---------- Pull quote ---------- */
blockquote {
  margin: 1.8rem 0;
  padding: 0.2rem 0 0.2rem 1.3rem;
  border-left: 2px solid var(--ink);
  font-family: var(--serif);
  font-style: normal;
  font-size: 1.2rem;
  color: var(--ink);
  line-height: 1.5;
}
blockquote cite {
  display: block;
  font-family: var(--mono);
  font-style: normal;
  font-size: 1rem;
  color: var(--ink-faint);
  margin-top: 0.6rem;
  letter-spacing: 0.03em;
}

/* ---------- Lists ---------- */
.deliverables {
  list-style: none;
  margin: 1.6rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
}
.deliverables li {
  display: flex;
  gap: 0.9rem;
  align-items: baseline;
  padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
}
.deliverables li:last-child { border-bottom: none; padding-bottom: 0; }
.deliverables a {
  color: var(--teal-text);
  text-decoration-color: var(--teal-text);
}
.deliverables a:hover { color: var(--teal); text-decoration-color: var(--teal); }
.deliverables .n {
  font-family: var(--mono);
  color: var(--signal);
  font-size: 1rem;
  flex: none;
  width: 1.6em;
}

.facts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 0;
  margin-top: 1.8rem;
  padding-top: 1.4rem;
  border-top: 1px dashed var(--line);
}
.facts div {
  flex: 1 1 33%;
  min-width: 140px;
}
.facts .k {
  font-family: var(--mono);
  font-size: 1rem;
  letter-spacing: 0.06em;
  color: var(--ink-faint);
  display: block;
  margin-bottom: 0.3rem;
}
.facts .v {
  font-family: var(--serif);
  font-size: 1.15rem;
}

.services {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.4rem;
  margin-top: 1.9rem;
}
.service svg {
  width: 26px;
  height: 26px;
  color: var(--teal);
  margin-bottom: 1rem;
  display: block;
}
.service .kicker {
  font-family: var(--mono);
  font-size: 1rem;
  letter-spacing: 0.06em;
  color: var(--signal);
  display: block;
  margin-bottom: 0.55rem;
}
.service h3 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.05rem;
  margin: 0 0 0.9rem;
  line-height: 1.3;
}
.service ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}
.service li {
  padding-left: 1.3rem;
  position: relative;
  color: var(--ink-soft);
  font-size: 1rem;
  line-height: 1.5;
}
.service li::before {
  content: "\2192";
  position: absolute;
  left: 0;
  color: var(--signal);
}
.service li a {
  color: var(--teal-text);
  text-decoration-color: var(--teal-text);
}
.service li a:hover { color: var(--teal); text-decoration-color: var(--teal); }
.section-link {
  margin-top: 1.8rem !important;
}
.section-link a {
  font-family: var(--mono);
  font-size: 1rem;
  color: var(--teal-text);
  border-bottom: 1px solid var(--teal-text);
  text-decoration: none;
  padding-bottom: 0.1rem;
}
.section-link a:hover { color: var(--teal); border-color: var(--teal); }
@media (max-width: 640px) {
  .services { grid-template-columns: 1fr; gap: 1.8rem; }
}

/* ---------- Vision / mission / values ---------- */
.statements {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.4rem;
  margin: 1.8rem 0 2rem;
}
.statement .kicker {
  font-family: var(--mono);
  font-size: 1rem;
  letter-spacing: 0.06em;
  color: var(--signal);
  display: block;
  margin-bottom: 0.6rem;
}
.statement p {
  font-family: var(--serif);
  font-size: 1.2rem;
  font-weight: 400;
  line-height: 1.45;
  color: var(--ink);
  margin: 0;
}
@media (max-width: 640px) {
  .statements { grid-template-columns: 1fr; gap: 1.6rem; }
}

/* ---------- Featured research ---------- */
.featured-eyebrow {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 1.2rem;
  color: var(--ink);
}
.featured-eyebrow svg {
  width: 18px;
  height: 15px;
  color: var(--signal);
  flex: none;
}
.featured-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.4rem;
  margin-top: 1.6rem;
}
.featured-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--paper-2);
  padding: 1.8rem 1.8rem 1.6rem;
  display: flex;
  flex-direction: column;
}
.featured-card h3 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 1.5rem;
  line-height: 1.2;
  margin: 0 0 0.8rem;
}
.featured-card h3 a {
  color: var(--ink);
  text-decoration: none;
}
.featured-card h3 a:hover { color: var(--teal); }
.featured-byline {
  font-family: var(--mono);
  font-size: 1rem;
  color: var(--ink-faint);
  margin: 0 0 1rem;
  display: flex;
  gap: 0.5em;
}
.featured-date { color: var(--ink-faint); opacity: 0.75; }
.featured-desc {
  color: var(--ink-soft);
  line-height: 1.6;
  margin: 0 0 1.4rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.featured-more {
  align-self: flex-start;
  margin-top: auto;
  font-family: var(--mono);
  font-size: 1rem;
  letter-spacing: 0.03em;
  text-decoration: none;
  color: var(--ink);
  border: 1px solid var(--ink);
  padding: 0.5rem 1.1rem;
  border-radius: 999px;
  transition: background 0.2s ease, color 0.2s ease;
}
.featured-more:hover { background: var(--ink); color: var(--paper); }

/* ---------- Questions grid ---------- */
.questions-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.1rem;
  margin-top: 1.8rem;
}
.question-card {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--paper-2);
  padding: 1.4rem 1.3rem 1.6rem;
}
.question-card svg {
  width: 26px;
  height: 26px;
  color: var(--teal);
  margin-bottom: 1rem;
  display: block;
}
.question-card p {
  font-family: var(--serif);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--ink);
  margin: 0;
}
@media (max-width: 760px) {
  .questions-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px) {
  .questions-grid { grid-template-columns: 1fr; }
}

/* ---------- Subscribe box ---------- */
.subscribe-box {
  margin-top: 2.2rem;
  padding: 1.8rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--paper-2);
}
.subscribe-row {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
}
.subscribe-row input[type="email"] {
  flex: 1 1 16rem;
  font-family: var(--sans);
  font-size: 1rem;
  padding: 0.85rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--paper);
  color: var(--ink);
}
.subscribe-row input[type="email"]::placeholder { color: var(--ink-faint); }
.subscribe-row input[type="email"]:focus {
  outline: none;
  border-color: var(--signal);
}
.subscribe-submit {
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
}
.subscribe-submit:disabled { opacity: 0.6; cursor: default; }
.subscribe-note {
  margin: 0.9rem 0 0 !important;
  font-family: var(--mono);
  font-size: 1rem;
  color: var(--ink-faint) !important;
}
.subscribe-status {
  margin: 0.7rem 0 0 !important;
  font-family: var(--mono);
  font-size: 1rem;
  min-height: 1em;
}
.subscribe-status[data-state="ok"] { color: #296b35; }
.subscribe-status[data-state="error"] { color: var(--signal); }
.hp-field,
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* ---------- Updates list ---------- */
.updates-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2.2rem;
}
.update-item {
  padding-bottom: 2.2rem;
  border-bottom: 1px solid var(--line);
}
.update-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
.update-date {
  font-family: var(--mono);
  font-size: 1rem;
  color: var(--ink-faint);
  letter-spacing: 0.02em;
  display: block;
  margin-bottom: 0.6rem;
}
.update-item h2 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(1.3rem, 2.6vw, 1.7rem);
  line-height: 1.25;
  margin: 0 0 0.8rem;
}
.update-item h2 a {
  color: var(--ink);
  text-decoration: none;
}
.update-item h2 a:hover { color: var(--teal); }
.update-item p {
  color: var(--ink-soft);
  margin: 0 0 0.9rem;
}
.update-item .section-link { margin-top: 0 !important; }

/* ---------- Why grid ---------- */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.8rem;
  margin-top: 2rem;
  padding-top: 1.8rem;
  border-top: 1px solid var(--line);
}
.why-point h3 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1rem;
  margin: 0 0 0.6rem;
  line-height: 1.35;
}
.why-point p {
  font-size: 1rem;
  margin: 0;
}
@media (max-width: 720px) {
  .why-grid { grid-template-columns: 1fr; gap: 1.5rem; }
}

.boundaries {
  list-style: none;
  margin: 1.6rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}
.boundaries li {
  color: var(--ink-soft);
  padding-left: 1.5rem;
  position: relative;
}
.boundaries li::before {
  content: "\2014";
  position: absolute;
  left: 0;
  color: var(--noise);
}

/* ---------- The ask ---------- */
.ask-list {
  list-style: none;
  margin: 1.8rem 0 2.4rem;
  padding: 0;
  display: grid;
  gap: 1.4rem;
}
.ask-list li {
  display: grid;
  grid-template-columns: 2.4rem 1fr;
  gap: 1rem;
}
.ask-list .n {
  font-family: var(--serif);
  font-style: normal;
  color: var(--signal);
  font-size: 1.6rem;
  line-height: 1;
}
.ask-list h3,
.article-body .ask-list h3 {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 1rem;
  margin: 0 0 0.35rem;
}
.ask-list p,
.article-body .ask-list p { margin: 0; }

.contact-card {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1.8rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
  align-items: center;
  justify-content: space-between;
}
.contact-card .mail {
  font-family: var(--serif);
  font-size: 1.3rem;
}

/* ---------- Footer ---------- */
footer.site {
  padding: 3rem 0 3.4rem;
  border-top: 1px solid var(--line);
}
footer.site .wrap {
  max-width: 64rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 2.4rem;
}
footer.site .foot-subscribe {
  flex: 1 1 22rem;
  max-width: 26rem;
}
footer.site .foot-subscribe h3 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.35rem;
  color: var(--ink);
  margin: 0 0 1.1rem;
}
footer.site .foot-subscribe .subscribe-box {
  margin-top: 0;
}
.social-links {
  display: flex;
  gap: 1.1rem;
  margin-top: 1.4rem;
}
.social-links a {
  color: var(--ink-faint);
  display: inline-flex;
  transition: color 0.15s ease;
}
.social-links a:hover { color: var(--teal); }
.social-links svg { width: 24px; height: 24px; }
footer.site nav {
  display: flex;
  gap: 3rem;
}
footer.site nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}
footer.site nav a {
  font-family: var(--mono);
  font-size: 1rem;
  color: var(--teal-text);
  text-decoration: none;
  border-bottom: 1px solid var(--teal-text);
}
footer.site nav a:hover { color: var(--teal); border-color: var(--teal); }
footer.site .copyright {
  width: 100%;
  margin-top: 2.2rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 1rem;
  color: var(--ink-faint);
}
footer.site .copyright a { color: var(--teal-text); text-decoration: none; border-bottom: 1px solid var(--teal-text); }
footer.site .copyright a:hover { color: var(--teal); border-color: var(--teal); }

/* ---------- Article template (tags, audience callout, table of contents) ---------- */
.article-hero {
  max-width: 64rem;
  margin: 0 auto;
  padding: 3.6rem 1.5rem 2.2rem;
}
.article-eyebrow {
  font-family: var(--sans);
  font-size: 1rem;
  color: var(--ink-faint);
  margin: 0 0 1.2rem;
}
.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 1.5rem;
}
.tag-pill {
  font-family: var(--sans);
  font-weight: 500;
  font-size: 1rem;
  color: var(--signal);
  background: var(--signal-soft);
  padding: 0.3rem 0.85rem;
  border-radius: 999px;
}
.article-hero h1 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(1.9rem, 4.5vw, 2.6rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0 0 1rem;
}
.article-dek {
  font-size: 1.1rem;
  color: var(--ink-soft);
  margin: 0;
}

.share-copy {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  margin-top: 1.4rem;
  font-family: var(--mono);
  font-size: 1rem;
  letter-spacing: 0.02em;
  color: var(--teal-text);
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  transition: color 0.15s ease;
}
.share-copy svg { width: 18px; height: 18px; flex: none; }
.share-copy:hover { color: var(--teal); }
.share-copy[data-copied="true"] { color: #296b35; }

.article-shell {
  max-width: 64rem;
  margin: 0 auto;
  padding: 2.6rem 1.5rem 4.5rem;
  display: grid;
  grid-template-columns: 13.5rem minmax(0, 46rem);
  gap: 3rem;
  border-top: 1px solid var(--line);
}
.article-toc {
  position: sticky;
  top: 5.5rem;
  align-self: start;
}
.toc-heading {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 1rem;
  color: var(--ink);
  margin: 0 0 0.9rem;
}
.article-toc ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.65rem;
  border-left: 2px solid var(--line);
}
.article-toc a {
  display: block;
  padding: 0.05rem 0 0.05rem 0.9rem;
  margin-left: -2px;
  font-size: 1rem;
  line-height: 1.4;
  color: var(--ink-faint);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.article-toc a:hover { color: var(--ink); }
.article-toc a.active {
  color: var(--signal);
  border-left-color: var(--signal);
  font-weight: 500;
}

.audience-callout {
  display: grid;
  grid-template-columns: 8.5rem 1fr;
  gap: 1.2rem;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1.4rem 1.6rem;
  margin: 0 0 2.6rem;
}
.audience-label {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 1rem;
  color: var(--teal-text);
  margin: 0;
}
.audience-callout p:last-child {
  margin: 0;
  color: var(--ink-soft);
  font-size: 1rem;
}

.article-body h2 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.35rem;
  letter-spacing: -0.005em;
  margin: 2.4rem 0 0.9rem;
}
.article-body p {
  color: var(--ink-soft);
  line-height: 1.75;
  margin: 0 0 1.1rem;
}
.article-body a {
  color: var(--teal-text);
  text-decoration-color: var(--teal-text);
}
.article-body a:hover { color: var(--teal); text-decoration-color: var(--teal); }

.ig-embed {
  display: flex;
  justify-content: center;
  margin: 2rem 0;
}

/* ---------- Article metadata strip ---------- */
.article-meta {
  font-family: var(--mono);
  font-size: 1rem;
  color: var(--ink-faint);
  letter-spacing: 0.02em;
  margin-top: 0.9rem;
}

/* ---------- Article boxes (method, caveats) ---------- */
.article-body h3 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.1rem;
  margin: 1.8rem 0 0.8rem;
}
.article-box {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1.6rem 1.8rem;
  margin: 2rem 0;
}
.article-box h3 {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 1rem;
  color: var(--teal-text);
  margin: 0 0 0.8rem;
}
.article-box p {
  color: var(--ink-soft);
  line-height: 1.75;
  margin: 0 0 1rem;
}
.article-box p:last-child { margin-bottom: 0; }
.article-box figure { margin: 1.4rem 0 0; }

.placeholder {
  color: var(--signal);
  border-bottom: 1px dashed var(--signal);
}

/* ---------- Article figures / charts ---------- */
.article-body figure {
  margin: 1.8rem 0;
}
.article-body figure img {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--line);
  border-radius: 8px;
}
.article-body figcaption {
  font-family: var(--mono);
  font-size: 1rem;
  color: var(--ink-faint);
  margin-top: 0.6rem;
  line-height: 1.5;
}

/* ---------- Article tables ---------- */
.table-wrap {
  overflow-x: auto;
  margin: 1.8rem 0;
}
.article-body table {
  width: 100%;
  border-collapse: collapse;
  font-size: 1rem;
}
.article-body th,
.article-body td {
  text-align: left;
  padding: 0.7rem 0.9rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
.article-body th {
  font-family: var(--sans);
  font-weight: 600;
  color: var(--ink);
  border-bottom: 2px solid var(--ink);
  white-space: nowrap;
}
.article-body td { color: var(--ink-soft); }

.article-body .arrow-list {
  list-style: none;
  margin: 1.4rem 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
}
.article-body .arrow-list li {
  padding-left: 1.4rem;
  position: relative;
  color: var(--ink-soft);
  line-height: 1.6;
}
.article-body .arrow-list li::before {
  content: "\2192";
  position: absolute;
  left: 0;
  color: var(--signal);
}

@media (max-width: 860px) {
  .article-shell { grid-template-columns: 1fr; }
  .article-toc {
    position: static;
    padding-bottom: 1.6rem;
    margin-bottom: 0.6rem;
    border-bottom: 1px solid var(--line);
  }
}
@media (max-width: 560px) {
  .audience-callout { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  footer.site nav { gap: 1.8rem; }
}

/* ---------- Footnotes ---------- */
a.fn {
  font-family: var(--mono);
  color: var(--teal-text);
  text-decoration: none;
}
a.fn:hover { text-decoration: underline; }

.footnotes {
  padding: 2rem 0 2.6rem;
  border-top: 1px solid var(--line);
}
.footnotes .wrap { max-width: var(--max); }
.footnotes-heading {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 1rem;
  letter-spacing: 0.1em;
  color: var(--teal-text);
  margin: 0 0 1rem;
}
.footnotes ol {
  margin: 0;
  padding-left: 1.3rem;
  display: grid;
  gap: 0.6rem;
}
.footnotes li {
  font-size: 1rem;
  color: var(--ink-faint);
  line-height: 1.5;
}
.footnotes a {
  color: var(--teal-text);
  text-decoration-color: var(--teal-text);
}
.footnotes a:hover { color: var(--teal); text-decoration-color: var(--teal); }
.fn-back {
  text-decoration: none !important;
  margin-left: 0.2em;
}