/* =============================================================
   Oath Research Complaints — Swiss Modernism 2.0
   Geist + IBM Plex Sans + IBM Plex Mono
   Stone #F4F4EF + ink #0A0E1A + forensic teal #0E5E6E
   12-column grid, 1rem gaps, mathematical alignment, no chrome
   ============================================================= */

:root {
  /* palette */
  --primary: #0A0E1A;
  --primary-50: #E8EAEE;
  --primary-900: #04060D;
  --secondary: #4A5060;
  --accent: #0E5E6E;
  --accent-50: #DDECEE;
  --accent-900: #06363F;
  --neutral-50: #F4F4EF;
  --neutral-100: #EAEAE4;
  --neutral-200: #D8D8D1;
  --neutral-300: #BFBFB8;
  --neutral-500: #7A7A72;
  --neutral-700: #3F4148;
  --neutral-900: #0A0E1A;
  --bg: #F4F4EF;
  --surface: #FFFFFF;
  --surface-alt: #EAEAE4;
  --text: #0A0E1A;
  --text-muted: #4A5060;
  --text-subtle: #7A7A72;
  --success: #1F6B4A;
  --warning: #9A6A1C;
  --danger: #A11D1D;
  --found: #0E5E6E;
  --not-found: #A11D1D;
  --partial: #9A6A1C;
  --unverifiable: #7A7A72;
  --rule: #0A0E1A;
  --rule-hair: #D8D8D1;

  /* type */
  --font-heading: 'Geist', 'Inter', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-body: 'IBM Plex Sans', system-ui, -apple-system, 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, 'SF Mono', Menlo, monospace;

  /* layout */
  --max-width: 76rem;
  --container-px: clamp(1rem, 3.5vw, 2.5rem);
  --gap: 1rem;
}

/* ---------- 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, li, figure, blockquote, dl, dd { margin: 0; padding: 0; }
ul, ol { list-style: none; }
img, svg, video { max-width: 100%; height: auto; display: block; }
button { font: inherit; cursor: pointer; background: none; border: none; padding: 0; color: inherit; }
a { color: inherit; }
hr { border: 0; height: 1px; background: var(--rule-hair); margin: 0; }

/* ---------- base ---------- */
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  font-feature-settings: "kern" 1, "liga" 1;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* ---------- typography ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--primary);
  line-height: 1.05;
}
h1 {
  font-size: clamp(2.25rem, 5.2vw, 4rem);
  letter-spacing: -0.025em;
  font-weight: 600;
}
h2 {
  font-size: clamp(1.75rem, 3.4vw, 2.625rem);
  letter-spacing: -0.015em;
  margin-top: 3rem;
  margin-bottom: 1rem;
}
h3 {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  letter-spacing: -0.01em;
  margin-top: 2rem;
  margin-bottom: 0.5rem;
}
h4 {
  font-size: 1.125rem;
  letter-spacing: -0.005em;
  margin-top: 1.25rem;
  margin-bottom: 0.5rem;
}

p, ul, ol { margin: 0 0 1.25rem; }
ul.bulleted, ol.bulleted { padding-left: 1.25rem; list-style: revert; }
ul.bulleted li, ol.bulleted li { margin-bottom: 0.5rem; line-height: 1.55; }
strong, b { font-weight: 600; color: var(--primary); }
em, i { font-style: italic; }

/* prose links: ink with 1px teal underline */
.prose a, main a:not(.btn):not(.brand-lockup):not(.skip-link):not(.sup-cite) {
  color: var(--text);
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
  transition: color 150ms ease-out;
}
.prose a:hover, main a:hover:not(.btn):not(.brand-lockup):not(.skip-link):not(.sup-cite) {
  color: var(--accent);
}

/* citation superscripts */
sup.sup-cite, sup .sup-cite, .sup-cite {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-decoration: none;
  color: var(--primary);
  vertical-align: super;
  line-height: 0;
  padding: 0 0.05em;
  cursor: pointer;
  transition: color 150ms ease-out;
}
.sup-cite:hover { color: var(--accent); }

/* mono identifiers inline */
code, .code {
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  font-weight: 400;
  background: var(--neutral-100);
  padding: 0.125rem 0.4rem;
  border-radius: 0;
}

/* ---------- skip-link ---------- */
.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  background: var(--primary);
  color: var(--neutral-50);
  padding: 0.5rem 1rem;
  z-index: 100;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  text-decoration: none;
}
.skip-link:focus { top: 0; }

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

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--gap);
}

/* ---------- header / masthead ---------- */
.site-header {
  background: var(--bg);
  border-bottom: 1px solid var(--rule);
  padding: 1.25rem 0 1rem;
}
.masthead-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.masthead-brand {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: var(--primary);
}
.brand-lockup {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: -0.02em;
  line-height: 1;
}
.brand-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 0.375rem;
}
.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  align-items: baseline;
}
.site-nav a {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--primary);
  padding: 0.25rem 0;
  border-bottom: 1px solid transparent;
  transition: color 150ms ease-out, border-color 150ms ease-out;
}
.site-nav a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}
.site-nav a[aria-current="page"] {
  border-bottom-color: var(--primary);
}

/* nav toggle (mobile) */
.nav-toggle {
  display: none;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--primary);
  border: 1px solid var(--primary);
  padding: 0.4rem 0.75rem;
}

/* ---------- hero / masthead lockup ---------- */
.hero {
  padding: 3rem 0 2.5rem;
  border-bottom: 1px solid var(--rule-hair);
}
.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  display: block;
}
.hero-headline {
  max-width: 30ch;
  margin-bottom: 1.5rem;
}
.hero-headline.editorial-h1 {
  max-width: 40ch;
}
.hero-subheadline {
  font-size: 1.1875rem;
  line-height: 1.55;
  max-width: 60ch;
  color: var(--text-muted);
  margin-bottom: 0;
}
.hero-rule {
  margin: 2.25rem 0 1.5rem;
  height: 1px;
  background: var(--primary);
  border: 0;
}

/* hero summary lockup (the 11/1/6/4 counts on /) */
.hero-summary-lockup {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--primary);
  border-bottom: 1px solid var(--primary);
}
.hero-summary-lockup .sum-cell {
  padding: 1.25rem 1rem;
  border-right: 1px solid var(--rule-hair);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.hero-summary-lockup .sum-cell:last-child { border-right: 0; }
.hero-summary-lockup .sum-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.hero-summary-lockup .sum-value {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--primary);
}
.hero-summary-lockup .sum-status {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
}
@media (max-width: 720px) {
  .hero-summary-lockup { grid-template-columns: repeat(2, 1fr); }
  .hero-summary-lockup .sum-cell:nth-child(2) { border-right: 0; }
  .hero-summary-lockup .sum-cell:nth-child(1),
  .hero-summary-lockup .sum-cell:nth-child(2) {
    border-bottom: 1px solid var(--rule-hair);
  }
}

/* hero-pointer */
.hero-pointer {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 60ch;
  margin-top: 1.25rem;
}
.hero-pointer a {
  color: var(--primary);
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

/* ---------- main / article ---------- */
main { padding: 0 0 4rem; }
.article-body {
  padding: 2.5rem 0;
}
.article-body section {
  padding: 1.75rem 0;
  border-top: 1px solid var(--rule-hair);
}
.article-body section:first-of-type { border-top: 0; padding-top: 0; }

.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  display: block;
}

.article-body p {
  max-width: 65ch;
  font-size: 1.0625rem;
  line-height: 1.6;
  margin-bottom: 1.1rem;
}
.article-body h2 {
  max-width: 30ch;
}
.article-body h3 {
  max-width: 40ch;
}

/* hero figure */
.hero-figure {
  margin: 2rem 0 0;
  border: 1px solid var(--rule-hair);
  background: var(--surface);
}
.hero-figure img { width: 100%; height: auto; display: block; }
.hero-figure figcaption {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  padding: 0.625rem 1rem;
  border-top: 1px solid var(--rule-hair);
}

/* section figure */
.section-figure {
  margin: 0 0 1.5rem;
  border: 1px solid var(--rule-hair);
  background: var(--surface);
}
.section-figure img { width: 100%; height: auto; display: block; }
.section-figure figcaption {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  padding: 0.625rem 1rem;
  border-top: 1px solid var(--rule-hair);
}

/* ---------- evidence chips (key/value mono row) ---------- */
.evidence-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin: 1.5rem 0 2.25rem;
  border-top: 1px solid var(--rule-hair);
  border-bottom: 1px solid var(--rule-hair);
  padding: 0.75rem 0;
  overflow-x: auto;
}
.evidence-chip {
  display: inline-flex;
  align-items: baseline;
  gap: 0.625rem;
  padding: 0.25rem 1rem 0.25rem 0;
  border-right: 1px solid var(--rule-hair);
  white-space: nowrap;
}
.evidence-chip:last-child { border-right: 0; padding-right: 0; }
.evidence-chip .chip-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.evidence-chip .chip-value {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--primary);
}

/* ---------- found / not_found / partial / unverifiable lockup ---------- */
.fnf-lockup {
  display: inline-flex;
  flex-direction: column;
  gap: 0.375rem;
  border: 1px solid var(--unverifiable);
  padding: 0.625rem 0.875rem;
  min-width: 8rem;
  background: var(--surface);
}
.fnf-lockup .fnf-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.fnf-lockup .fnf-value {
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--primary);
}
.fnf-lockup.fnf-found { border-color: var(--found); }
.fnf-lockup.fnf-not-found { border-color: var(--not-found); }
.fnf-lockup.fnf-partial { border-color: var(--partial); }
.fnf-lockup.fnf-unverifiable { border-color: var(--unverifiable); }

/* ---------- complaint disposition table ---------- */
.disposition-table {
  margin: 1.5rem 0 2rem;
}
.disposition-row {
  display: grid;
  grid-template-columns: 4fr 6fr 2fr;
  gap: 1rem;
  padding: 1.25rem 0;
  border-top: 1px solid var(--rule-hair);
  align-items: start;
}
.disposition-row:first-child { border-top: 2px solid var(--primary); }
.disposition-row.disposition-header {
  border-top: 0;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--primary);
}
.disposition-header .cell {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.disposition-row .cell h4 {
  margin-top: 0;
  margin-bottom: 0.5rem;
  font-size: 1rem;
  letter-spacing: -0.005em;
  font-weight: 600;
}
.disposition-row .cell p {
  font-size: 0.9375rem;
  margin: 0 0 0.5rem;
  color: var(--text-muted);
  max-width: 60ch;
}
.disposition-row .cell-status {
  display: flex;
  justify-content: flex-end;
}
.disposition-row .cell-source {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--text-subtle);
  text-transform: uppercase;
}
@media (max-width: 768px) {
  .disposition-row {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }
  .disposition-header { display: none; }
  .disposition-row .cell-status { justify-content: flex-start; }
}

/* ---------- editor's note callout ---------- */
.editor-note {
  border-left: 3px solid var(--accent);
  padding: 0.5rem 0 0.5rem 1rem;
  margin: 1.5rem 0;
  max-width: 60ch;
}
.editor-note .note-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.375rem;
  display: block;
}
.editor-note p { margin-bottom: 0; font-size: 0.9375rem; line-height: 1.55; }

/* ---------- buttons (rarely used but defined) ---------- */
.btn {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  padding: 0.875rem 1.5rem;
  border-radius: 0;
  border: 1px solid var(--primary);
  text-decoration: none;
  transition: background-color 200ms ease-out, color 200ms ease-out;
}
.btn-primary {
  background: var(--primary);
  color: var(--neutral-50);
}
.btn-primary:hover {
  background: var(--neutral-50);
  color: var(--primary);
}
.btn-secondary {
  background: transparent;
  color: var(--primary);
}
.btn-secondary:hover {
  background: var(--primary);
  color: var(--neutral-50);
}

/* ---------- references list ---------- */
.references-list {
  counter-reset: refnum;
  padding-left: 0;
  list-style: none;
  max-width: none;
}
.references-list li {
  position: relative;
  padding: 1rem 0 1rem 3rem;
  border-top: 1px solid var(--rule-hair);
  max-width: none;
}
.references-list li:first-child { border-top: 2px solid var(--primary); }
.references-list li::before {
  counter-increment: refnum;
  content: "[" counter(refnum) "]";
  position: absolute;
  left: 0;
  top: 1rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--primary);
}
.references-list .ref-citation {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.9375rem;
  line-height: 1.55;
  max-width: 75ch;
}
.references-list .ref-url {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  word-break: break-all;
  color: var(--primary);
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}
.references-list .ref-url:hover { color: var(--accent); }
.references-list .ref-source-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-subtle);
  margin-right: 0.5rem;
}

/* ---------- FAQ accordion (semantic <details>) ---------- */
.faq-list { margin-top: 2rem; }
.faq-list details {
  border-top: 1px solid var(--rule-hair);
  padding: 1.25rem 0;
}
.faq-list details:first-child { border-top: 2px solid var(--primary); }
.faq-list summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.125rem;
  letter-spacing: -0.005em;
  color: var(--primary);
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--text-muted);
  line-height: 1;
  transition: transform 200ms ease-out, color 200ms ease-out;
}
.faq-list details[open] summary::after {
  content: "−";
  color: var(--accent);
}
.faq-list .faq-answer {
  margin-top: 1rem;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-muted);
  max-width: 70ch;
}
.faq-list .faq-answer p { margin-bottom: 0.75rem; max-width: none; }
.faq-list .faq-answer p:last-child { margin-bottom: 0; }

/* ---------- contact form ---------- */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  max-width: 36rem;
  margin: 1.5rem 0 2rem;
  padding: 1.5rem;
  border: 1px solid var(--rule-hair);
  background: var(--surface);
}
.contact-form label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  display: block;
  margin-bottom: 0.375rem;
}
.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form textarea,
.contact-form select {
  font-family: var(--font-body);
  font-size: 1rem;
  width: 100%;
  padding: 0.75rem 0.875rem;
  border: 1px solid var(--neutral-300);
  background: var(--bg);
  color: var(--text);
  border-radius: 0;
}
.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}
.contact-form textarea { min-height: 8rem; resize: vertical; }
.contact-form .checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.5;
}
.contact-form .checkbox-row input { margin-top: 0.2rem; }
.contact-form .label-checkbox {
  font-family: var(--font-body);
  text-transform: none;
  letter-spacing: normal;
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--text-muted);
  margin-bottom: 0;
}

/* ---------- footer ---------- */
.site-footer {
  background: var(--bg);
  border-top: 1px solid var(--primary);
  padding: 3rem 0 1.5rem;
  margin-top: 4rem;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 2fr;
  gap: 2rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--rule-hair);
}
.footer-brand .brand-lockup {
  font-size: 1.375rem;
  margin-bottom: 0.5rem;
}
.footer-brand .footer-disclaimer {
  font-style: italic;
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--text-muted);
  margin-top: 0.75rem;
  max-width: 36ch;
}
.footer-columns {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}
.footer-columns h3 {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 0 0 0.75rem;
}
.footer-columns ul li { margin-bottom: 0.5rem; }
.footer-columns a {
  font-size: 0.9375rem;
  color: var(--primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 150ms ease-out, border-color 150ms ease-out;
}
.footer-columns a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  padding-top: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-subtle);
}
.footer-bottom p { margin: 0; }

@media (max-width: 768px) {
  .footer-top { grid-template-columns: 1fr; }
  .footer-columns { grid-template-columns: repeat(2, 1fr); }
}

/* ---------- 404 ---------- */
.page-404 {
  padding: 6rem 0;
  text-align: left;
}
.page-404 h1 {
  font-size: clamp(3rem, 8vw, 6rem);
  margin-bottom: 1rem;
}
.page-404 p { max-width: 50ch; font-size: 1.0625rem; line-height: 1.6; }
.page-404 .return-link {
  display: inline-block;
  margin-top: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--primary);
  border-bottom: 1px solid var(--accent);
  text-decoration: none;
  padding-bottom: 0.125rem;
}
.page-404 .return-link:hover { color: var(--accent); }

/* ---------- tippy theme override ---------- */
.tippy-box[data-theme~='light-border'] {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--primary);
  font-family: var(--font-body);
  font-size: 0.875rem;
  line-height: 1.5;
  border-radius: 0;
  box-shadow: none;
  max-width: 320px !important;
}
.tippy-box[data-theme~='light-border'] .tippy-content {
  padding: 0.625rem 0.875rem;
}
.tippy-box[data-theme~='light-border'] .tippy-arrow {
  color: var(--surface);
}

/* ---------- responsive ---------- */
@media (max-width: 720px) {
  .nav-toggle { display: inline-block; }
  .site-nav {
    width: 100%;
    display: none;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--rule-hair);
  }
  .site-nav.is-open { display: block; }
  .site-nav ul {
    flex-direction: column;
    gap: 0.75rem;
    align-items: flex-start;
  }
  .masthead-row { flex-wrap: wrap; }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}