/* =============================================================
   OATH RESEARCH REVIEW — Swiss Modern
   Pure white #FFFFFF + black #000000 + signal-red #E5341A
   Archivo (display) + Nunito (body) + JetBrains Mono (data)
   ============================================================= */

:root {
  --c-white: #FFFFFF;
  --c-black: #000000;
  --c-red: #E5341A;
  --c-red-50: #FCE9E5;
  --c-red-300: #F08574;
  --c-red-700: #B82710;
  --c-red-900: #7A1809;
  --c-gray-50: #F5F5F5;
  --c-gray-100: #EEEEEE;
  --c-gray-200: #E0E0E0;
  --c-gray-300: #CCCCCC;
  --c-gray-400: #999999;
  --c-gray-500: #666666;
  --c-gray-700: #333333;

  --bg: var(--c-white);
  --bg-alt: var(--c-gray-50);
  --surface: var(--c-white);
  --surface-quiet: var(--c-gray-50);
  --text: var(--c-black);
  --text-muted: var(--c-gray-500);
  --text-dim: var(--c-gray-400);
  --rule: var(--c-gray-200);
  --rule-strong: var(--c-black);

  --font-display: 'Archivo', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-body: 'Nunito', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'IBM Plex Mono', 'SF Mono', Menlo, Consolas, monospace;

  --max-width: 76rem;
  --content-max: 44rem;
  --hero-max: 56ch;
  --container-px: clamp(1rem, 3vw, 2rem);

  --baseline: 24px;
  --transition: 200ms ease-out;
}

/* ----- Reset ----- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body, h1, h2, h3, h4, h5, h6, p, ul, ol, figure, blockquote, dl, dd {
  margin: 0;
}
ul, ol { padding: 0; list-style: none; }
img, picture, svg { display: block; max-width: 100%; }
button { font: inherit; cursor: pointer; background: none; border: 0; padding: 0; color: inherit; }
a { color: inherit; }

/* ----- Base typography ----- */
html { font-family: var(--font-body); font-size: 16px; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.7;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--c-black);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.25rem, 5vw, 4rem);
  line-height: 1.08;
  letter-spacing: -0.025em;
  font-weight: 700;
}

h2 {
  font-size: clamp(1.625rem, 3vw, 2.25rem);
  letter-spacing: -0.02em;
}

h3 {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.005em;
  line-height: 1.25;
}

h4 {
  font-size: 1.0625rem;
  font-weight: 600;
}

p { margin: 0; }
p + p { margin-top: var(--baseline); }

.lede {
  font-size: 1.25rem;
  line-height: 1.55;
  letter-spacing: -0.005em;
  color: var(--c-black);
  font-weight: 400;
  max-width: 60ch;
}

.eyebrow {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-black);
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0;
}

.eyebrow--muted { color: var(--text-muted); }

.eyebrow::before {
  content: '';
  display: inline-block;
  width: 12px;
  height: 12px;
  background: var(--c-red);
}

.eyebrow--black::before {
  background: var(--c-black);
}

.byline-rule {
  display: block;
  width: 32px;
  height: 3px;
  background: var(--c-black);
  margin: 24px 0;
  border: 0;
}

.byline-rule--red {
  background: var(--c-red);
}

.byline {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
}

code, kbd, samp, .mono {
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  font-feature-settings: 'tnum' 1, 'lnum' 1;
}

.mono-inline {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.9375rem;
  font-feature-settings: 'tnum' 1, 'lnum' 1;
}

code {
  border-bottom: 1px solid var(--c-black);
  padding-bottom: 1px;
}

a {
  color: var(--c-black);
  text-decoration: none;
  border-bottom: 1px solid var(--c-red);
  transition: border-color var(--transition), border-width var(--transition);
}

a:hover {
  border-bottom-color: var(--c-red);
  border-bottom-width: 2px;
}

a:focus-visible {
  outline: 2.5px solid var(--c-red);
  outline-offset: 3px;
  box-shadow: 0 0 0 5px var(--c-white);
}

/* ----- Container & shell ----- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding-left: var(--container-px);
  padding-right: var(--container-px);
}

.shell {
  max-width: var(--content-max);
}

/* ----- Skip link ----- */
.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--c-black);
  color: var(--c-white);
  padding: 0.5rem 1rem;
  z-index: 100;
}
.skip:focus {
  left: 1rem;
  top: 1rem;
  border: 0;
}

/* ----- Site header / masthead ----- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--c-white);
  border-bottom: 1px solid var(--c-black);
}

.masthead {
  display: grid;
  grid-template-columns: 1fr;
  align-items: center;
  gap: 12px;
  padding: 14px 0;
  min-height: 80px;
}

.masthead-brand {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.masthead-wordmark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--c-black);
  text-transform: uppercase;
  border: 0;
}

.masthead-wordmark::before {
  content: '';
  display: inline-block;
  width: 12px;
  height: 12px;
  background: var(--c-red);
}

.masthead-byline {
  font-family: var(--font-body);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.masthead-nav-wrap {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 16px;
}

.site-nav ul {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  align-items: center;
}

.site-nav a {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.9375rem;
  color: var(--c-black);
  border: 0;
  position: relative;
  padding-bottom: 6px;
}

.site-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 1px;
  background: var(--c-black);
  opacity: 0;
  transition: opacity var(--transition);
}

.site-nav a:hover::after { opacity: 1; }

.site-nav a[aria-current='page']::after {
  background: var(--c-red);
  height: 2px;
  bottom: -4px;
  opacity: 1;
}

.masthead-chip {
  display: none;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-black);
  border: 1px solid var(--c-black);
  padding: 0.375rem 0.625rem;
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--c-black);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.nav-toggle[aria-expanded='true'] {
  background: var(--c-black);
  color: var(--c-white);
}

@media (max-width: 819px) {
  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--c-white);
    border-bottom: 1px solid var(--c-black);
    padding: 1rem var(--container-px);
    display: none;
  }
  .site-nav.open { display: block; }
  .site-nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }
}

@media (min-width: 820px) {
  .masthead {
    grid-template-columns: minmax(220px, 1fr) auto auto;
  }
  .nav-toggle { display: none; }
  .masthead-chip { display: inline-flex; }
}

/* ----- Main / page layout ----- */
main { display: block; }

.page-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2.5rem;
  padding: 3rem 0 4rem;
}

@media (min-width: 1024px) {
  .page-shell {
    grid-template-columns: minmax(0, 44rem) minmax(0, 18rem);
    gap: 4rem;
  }
}

.article {
  max-width: var(--content-max);
}

.article section,
.article header.hero {
  margin-bottom: 3rem;
}

.article h2 {
  margin-top: 1rem;
  margin-bottom: 0.25rem;
}

.article h2 + .byline-rule {
  margin: 16px 0 24px;
}

.article p,
.article ul,
.article ol,
.article table,
.article figure,
.article .callout,
.article .verdict-card,
.article .stat-strip-block,
.article .third-party-table,
.article .references-list {
  margin-top: var(--baseline);
}

.article ul.body-list,
.article ol.body-list {
  padding-left: 1.25rem;
  list-style: disc;
}

.article ol.body-list { list-style: decimal; }
.article .body-list li + li { margin-top: 0.5rem; }

.article strong { font-weight: 700; }
.article em { font-style: italic; color: var(--c-black); }

/* ----- Hero block ----- */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2rem;
  align-items: start;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--c-black);
}

@media (min-width: 980px) {
  .hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 3.5rem;
  }
}

.hero-main {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: var(--hero-max);
}

.hero-main .eyebrow {
  margin-bottom: 1.25rem;
}

.hero-main h1 {
  margin: 0;
}

.hero-main .byline {
  margin-top: 0.5rem;
}

.hero-main .lede {
  margin-top: 1.5rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  margin-top: 2rem;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.9375rem;
  letter-spacing: 0;
  padding: 0.875rem 1.75rem;
  border-radius: 0;
  border: 0;
  transition: box-shadow var(--transition), transform var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--c-black);
  color: var(--c-white);
}

.btn-primary:hover {
  box-shadow: inset 0 0 0 1px var(--c-white);
}

.btn-primary:active { transform: scale(0.98); }

.btn-primary:focus-visible {
  outline: 2.5px solid var(--c-red);
  outline-offset: 3px;
  box-shadow: 0 0 0 5px var(--c-white);
}

.btn-secondary {
  background: transparent;
  color: var(--c-black);
  border: 1.5px solid var(--c-black);
}

.btn-secondary:hover {
  box-shadow: inset 0 0 0 1px var(--c-black);
}

.btn-ghost {
  background: transparent;
  color: var(--c-black);
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--c-black);
}

.btn-ghost:hover { border-bottom-width: 2px; }

/* ----- Hero right column: verdict snapshot stat strip ----- */
.hero-right {
  display: flex;
  flex-direction: column;
  gap: 0;
  align-items: flex-start;
  position: relative;
}

.hero-right-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.stat-strip {
  display: flex;
  flex-direction: column;
  gap: 0;
  width: 100%;
}

.stat-strip li {
  padding: 12px 0 8px;
  border-bottom: 1px solid var(--c-black);
}

.stat-strip li:first-child {
  border-top: 1px solid var(--c-black);
  padding-top: 12px;
}

.stat-value {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--c-black);
  letter-spacing: -0.01em;
  font-feature-settings: 'tnum' 1, 'lnum' 1;
}

.stat-label {
  display: block;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 6px;
}

.hero-anchor-mark {
  display: block;
  width: 12px;
  height: 12px;
  background: var(--c-red);
  margin-top: 1.5rem;
  align-self: flex-end;
}

/* ----- Section transition rule ----- */
.section-rule {
  display: block;
  width: 100%;
  height: 1px;
  background: var(--c-black);
  border: 0;
  margin: 2.5rem 0;
  position: relative;
}

.section-rule::before {
  content: '';
  position: absolute;
  left: 0;
  top: -6px;
  width: 12px;
  height: 12px;
  background: var(--c-black);
}

/* ----- Honest gap inline marker ----- */
.honest-gap {
  font-family: var(--font-body);
  font-style: italic;
  font-weight: 400;
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin-top: var(--baseline);
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.honest-gap::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--c-red);
  margin-top: 0.55em;
  flex-shrink: 0;
}

/* ----- Callout ----- */
.callout {
  background: var(--c-white);
  border: 1px solid var(--c-gray-200);
  border-left: 4px solid var(--c-black);
  padding: 1.5rem 1.75rem;
}

.callout-eyebrow {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-black);
  display: block;
  margin-bottom: 0.75rem;
}

.callout p { margin: 0; }
.callout p + p { margin-top: 0.875rem; }

/* ----- Verdict card ----- */
.verdict-card {
  background: var(--c-gray-50);
  border-top: 3px solid var(--c-red);
  padding: 2rem 2rem 1.75rem;
  max-width: var(--hero-max);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.verdict-card-eyebrow {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-black);
}

.verdict-statement {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--c-black);
  margin: 0;
}

.verdict-sep {
  height: 1px;
  background: var(--c-black);
  border: 0;
  margin: 0;
}

.verdict-pillars {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.verdict-pillars li {
  display: grid;
  grid-template-columns: 2.25rem 1fr;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.9375rem;
  color: var(--c-black);
  line-height: 1.5;
}

.verdict-pillars li::before {
  content: counter(verdict-counter, decimal-leading-zero) ' /';
  counter-increment: verdict-counter;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--c-black);
}

.verdict-pillars { counter-reset: verdict-counter; }

.verdict-signed {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 0.5rem;
}

.verdict-card-with-stamp {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1.5rem;
  align-items: start;
}

.verdict-stamp {
  width: 80px;
  height: 80px;
  background: var(--c-red);
  color: var(--c-white);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  flex-shrink: 0;
}

/* ----- Citation marker ----- */
.cite {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.6875rem;
  color: var(--c-black);
  vertical-align: super;
  line-height: 0;
  border: 0;
  position: relative;
  margin: 0 1px;
  text-decoration: none;
  cursor: help;
}

.cite::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  background: var(--c-red);
  opacity: 0.6;
  transition: height var(--transition), opacity var(--transition);
}

.cite:hover::after {
  height: 1.5px;
  opacity: 1;
}

/* ----- Tippy editorial theme ----- */
.tippy-box[data-theme~='oath-editorial'] {
  background: var(--c-white);
  color: var(--c-black);
  border: 1px solid var(--c-black);
  border-top: 2px solid var(--c-black);
  border-radius: 0;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  line-height: 1.5;
  box-shadow: none;
}

.tippy-box[data-theme~='oath-editorial'] .tippy-content {
  padding: 0.875rem 1rem;
}

.tippy-box[data-theme~='oath-editorial'] .tippy-arrow {
  color: var(--c-black);
}

.tippy-citation-text { font-weight: 400; color: var(--c-black); }
.tippy-citation-mono {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-top: 0.5rem;
}
.tippy-citation-link {
  display: inline-block;
  margin-top: 0.5rem;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.8125rem;
  color: var(--c-black);
  border-bottom: 1px solid var(--c-red);
}

/* ----- Tables ----- */
table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  line-height: 1.5;
}

table thead th {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.8125rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-black);
  text-align: left;
  padding: 1rem 0.75rem;
  border-top: 2px solid var(--c-black);
  border-bottom: 1px solid var(--c-black);
}

table tbody td {
  padding: 1.25rem 0.75rem;
  border-bottom: 1px solid var(--c-black);
  color: var(--c-black);
  vertical-align: top;
}

table.data-table .num,
table.data-table .num-cell {
  font-family: var(--font-mono);
  font-weight: 500;
  font-feature-settings: 'tnum' 1, 'lnum' 1;
  text-align: right;
  white-space: nowrap;
}

table.data-table .muted { color: var(--text-muted); }

table.data-table th.num,
table.data-table th.num-cell {
  text-align: right;
}

.table-wrap {
  overflow-x: auto;
}

/* ----- Third-party listing table (styled like data-table) ----- */
.third-party-table { width: 100%; }

/* ----- References list ----- */
.references-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  padding: 0;
  list-style: none;
}

.references-list li {
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--c-black);
  display: grid;
  grid-template-columns: 4rem 1fr;
  gap: 1rem;
  align-items: start;
}

.references-list li:first-child {
  border-top: 2px solid var(--c-black);
}

.references-list .ref-id {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding-top: 0.25rem;
}

.references-list .ref-body {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--c-black);
}

.ref-body .ref-link {
  display: inline-block;
  margin-left: 0.5rem;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.875rem;
  color: var(--c-black);
  border-bottom: 1px solid var(--c-red);
}

/* ----- Confidence chips ----- */
.chip {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.25rem 0.5rem;
  border: 1px solid var(--c-black);
  color: var(--c-black);
  background: var(--c-white);
  border-radius: 0;
  white-space: nowrap;
}

.chip--verified,
.chip--high {
  border-color: var(--c-black);
  color: var(--c-black);
}

.chip--moderate,
.chip--qualified {
  border-color: var(--text-muted);
  color: var(--text-muted);
}

.chip--gap,
.chip--low {
  border-color: var(--c-red);
  color: var(--c-red);
}

/* ----- Claim examined container ----- */
.claim-examined {
  border-left: 4px solid var(--c-red);
  padding: 1.25rem 1.5rem;
  background: var(--c-gray-50);
  margin-top: var(--baseline);
}

.claim-examined-eyebrow {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-red);
  display: block;
  margin-bottom: 0.5rem;
}

.claim-examined p { margin: 0; }
.claim-examined p + p { margin-top: 0.75rem; }

/* ----- Figure / images ----- */
figure {
  margin: var(--baseline) 0;
  padding: 0;
  background: var(--c-white);
  border: 1px solid var(--c-black);
}

figure img {
  display: block;
  width: 100%;
  height: auto;
}

figcaption {
  padding: 0.875rem 1.25rem;
  border-top: 1px solid var(--c-black);
  font-family: var(--font-body);
  font-size: 0.875rem;
  line-height: 1.5;
}

figcaption .fig-marker {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-black);
  display: inline-block;
  margin-right: 0.5rem;
}

figcaption em {
  color: var(--c-black);
}

.hero-figure {
  margin: 2.5rem 0;
}

/* ----- FAQ list ----- */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--c-black);
}

.faq-item {
  border-bottom: 1px solid var(--c-black);
}

.faq-question {
  display: flex;
  width: 100%;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 0;
  text-align: left;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.125rem;
  letter-spacing: -0.01em;
  color: var(--c-black);
  line-height: 1.3;
  border: 0;
  background: transparent;
}

.faq-question::after {
  content: '+';
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 1.25rem;
  color: var(--c-red);
  flex-shrink: 0;
  margin-left: 0.5rem;
}

.faq-item.open .faq-question::after {
  content: '\2013';
}

.faq-answer {
  padding: 0 0 1.5rem;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--c-black);
  display: none;
}

.faq-item.open .faq-answer {
  display: block;
}

/* ----- Sidebar marginalia ----- */
.marginalia {
  display: none;
  font-family: var(--font-body);
  font-size: 0.8125rem;
}

@media (min-width: 1024px) {
  .marginalia {
    display: block;
    position: sticky;
    top: 100px;
    align-self: start;
  }
}

.marginalia-block {
  border-left: 1px solid var(--c-black);
  padding: 0 0 0 1.25rem;
  margin-bottom: 2.5rem;
}

.marginalia-eyebrow {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-black);
  display: block;
  margin-bottom: 0.625rem;
}

.marginalia-text {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  line-height: 1.55;
  color: var(--c-black);
}

.marginalia-list {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.marginalia-list li {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--c-black);
}

.marginalia-list .cit-id {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-right: 0.5rem;
}

/* ----- Contact form ----- */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-top: var(--baseline);
  border-top: 1px solid var(--c-black);
  padding-top: 1.75rem;
}

.contact-form label {
  display: block;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-black);
  margin-bottom: 0.5rem;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  background: var(--c-white);
  color: var(--c-black);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 400;
  border: 1px solid var(--c-black);
  border-radius: 0;
  padding: 0.75rem 0.875rem;
}

.contact-form textarea {
  min-height: 8rem;
  resize: vertical;
  font-family: var(--font-body);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: 2.5px solid var(--c-red);
  outline-offset: 2px;
}

.form-help {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: 0.375rem;
  font-style: italic;
}

/* ----- 404 ----- */
.error-page {
  padding: 6rem 0;
  text-align: left;
  max-width: var(--content-max);
  margin: 0 auto;
}

.error-page h1 {
  font-size: clamp(3rem, 8vw, 6rem);
  line-height: 0.95;
}

.error-mono {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-red);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 1.5rem;
}

.error-mono::before {
  content: '';
  display: inline-block;
  width: 12px;
  height: 12px;
  background: var(--c-red);
}

/* ----- Footer ----- */
.site-footer {
  background: var(--c-white);
  border-top: 1px solid var(--c-black);
  padding: 4rem 0 2rem;
  margin-top: 4rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2.5rem;
}

@media (min-width: 720px) {
  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.footer-column h3 {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-black);
  margin-bottom: 1.25rem;
}

.footer-column ul {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.footer-column a {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.9375rem;
  color: var(--c-black);
  border-bottom: 1px solid var(--c-red);
  padding-bottom: 1px;
  text-decoration: none;
  opacity: 1;
}

.footer-column a:hover {
  border-bottom-width: 1.5px;
}

.colophon {
  border-top: 1px solid var(--c-black);
  margin-top: 3rem;
  padding-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: flex-start;
  justify-content: space-between;
}

@media (min-width: 720px) {
  .colophon { flex-direction: row; align-items: center; }
}

.colophon-disclaimer {
  font-family: var(--font-body);
  font-style: italic;
  font-weight: 500;
  font-size: 0.875rem;
  color: var(--c-black);
  max-width: 60ch;
}

.colophon-mark {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.colophon-dots {
  display: inline-flex;
  align-items: center;
  gap: 3px;
}

.colophon-dot {
  display: inline-block;
  width: 4px;
  height: 4px;
  background: var(--c-black);
}

.colophon-red {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--c-red);
  margin-left: 4px;
}

.copyright {
  font-family: var(--font-body);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin-top: 1.5rem;
}

/* ----- Reduced motion ----- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0ms !important;
    animation-duration: 0ms !important;
    scroll-behavior: auto !important;
  }
}

/* ----- Print ----- */
@media print {
  .site-header, .site-footer, .marginalia, .nav-toggle { display: none; }
  body { background: var(--c-white); color: var(--c-black); }
  a { border-bottom: 0; }
}