/* One spacing scale and semantic colors across both themes. */
:root {
  --s1: 4px;
  --s2: 8px;
  --s3: 12px;
  --s4: 16px;
  --s5: 24px;
  --s6: 32px;
  --s7: 48px;
  --s8: 64px;
  --s9: 96px;
  --s10: 128px;
  --section-space: var(--s9);
  --content-gap: var(--s7);
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --heading: "Space Grotesk", var(--sans);
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --paper: #f3f5f9;
  --ink: #151c2e;
  --muted: #526078;
  --line: #d0d8e6;
  --surface: #ffffff;
  --surface-2: #e9eef6;
  --surface-3: #dce5f3;
  --accent: #214cde;
  --accent-end: #007d99;
  --accent-soft: #e1e9ff;
  --orange: var(--accent);
  --orange-light: var(--accent-soft);
  --positive: #176650;
  --positive-bg: #dbf2e9;
  --negative: #a13042;
  --negative-bg: #fde5e9;
  --header-bg: #f3f5f9f2;
  --shadow: 0 18px 50px -28px #12214750;
  --terminal: #111b2a;
  --terminal-line: #35435a;
  --terminal-text: #ebf2ff;
  --terminal-muted: #b0c0d8;
  --bid: #7cdec0;
  --ask: #ffb4a1;
  color-scheme: light;
}
:root[data-theme="dark"] {
  --paper: #0d121c;
  --ink: #edf2ff;
  --muted: #a6b4cc;
  --line: #303e54;
  --surface: #141e2e;
  --surface-2: #19263b;
  --surface-3: #233551;
  --accent: #91b0ff;
  --accent-end: #79e7e0;
  --accent-soft: #21345e;
  --positive: #9ae9ca;
  --positive-bg: #173b32;
  --negative: #ffb4c1;
  --negative-bg: #462330;
  --header-bg: #0d121cf2;
  --shadow: 0 18px 50px -22px #00000070;
  --terminal: #101a29;
  --terminal-line: #3e4f68;
  color-scheme: dark;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0d121c;
    --ink: #edf2ff;
    --muted: #a6b4cc;
    --line: #303e54;
    --surface: #141e2e;
    --surface-2: #19263b;
    --surface-3: #233551;
    --accent: #91b0ff;
    --accent-end: #79e7e0;
    --accent-soft: #21345e;
    --positive: #9ae9ca;
    --positive-bg: #173b32;
    --negative: #ffb4c1;
    --negative-bg: #462330;
    --header-bg: #0d121cf2;
    --shadow: 0 18px 50px -22px #00000070;
    --terminal: #101a29;
    --terminal-line: #3e4f68;
    color-scheme: dark;
  }
}
body {
  background: var(--paper);
}
h1,
h2,
h3,
h4 {
  font-family: var(--heading);
  font-weight: 500;
  letter-spacing: -0.055em;
  text-wrap: balance;
}
p {
  text-wrap: pretty;
}
::selection {
  background: var(--accent-soft);
  color: var(--ink);
}
:focus-visible {
  scroll-margin-block: 110px;
}
.theme-changing,
.theme-changing body,
.theme-changing
  :where(
    header,
    section,
    article,
    button,
    a,
    select,
    input,
    .project-visual,
    .eval-panel,
    .candidate,
    .report-sheet,
    .market-sheet,
    .letter-tile
  ) {
  transition:
    background-color 220ms,
    color 220ms,
    border-color 220ms,
    box-shadow 220ms;
}
.site-header {
  background: var(--header-bg);
  border-color: var(--line);
}
.header-inner {
  gap: var(--s5);
}
.brand {
  font-family: var(--heading);
  font-weight: 600;
  gap: var(--s2);
}
.brand-mark {
  transition: transform 350ms;
}
.brand:hover .brand-mark {
  transform: rotate(90deg);
}
.site-nav {
  margin-left: auto;
  gap: var(--s5);
}
.site-nav a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}
.site-nav a::after {
  bottom: 4px;
  height: 2px;
  border-radius: 2px;
}
.site-nav a[aria-current="location"] {
  color: var(--accent);
}
.nav-contact {
  border-radius: 6px;
}
.theme-toggle {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-width: 84px;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  background: var(--surface);
  font: 11px var(--mono);
}
.theme-symbol {
  font-size: 19px;
  transition: transform 350ms;
}
.theme-toggle:hover .theme-symbol {
  transform: rotate(35deg);
}
.reading-progress {
  position: fixed;
  inset: 0 0 auto;
  height: 3px;
  z-index: 60;
  pointer-events: none;
}
.reading-progress span {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
}
.hero {
  padding-block: var(--s8) var(--s6);
  position: relative;
  isolation: isolate;
}
.hero::before {
  content: "";
  position: absolute;
  z-index: -2;
  inset: 0 -20px;
  background: radial-gradient(
    ellipse at 83% 38%,
    color-mix(in srgb, var(--accent) 9%, transparent),
    transparent 48%
  );
  pointer-events: none;
}
.hero-topline {
  margin-bottom: var(--s7);
}
.hero-grid {
  gap: var(--s8);
}
.hero-copy h1 {
  font-family: var(--heading);
  font-weight: 500;
  font-size: clamp(3.3rem, 5.85vw, 5.9rem);
  line-height: 1.04;
  letter-spacing: -0.065em;
}
.hero-copy h1 em {
  font-family: inherit;
  font-style: normal;
  font-weight: 600;
  letter-spacing: inherit;
  color: var(--accent);
  background: linear-gradient(110deg, var(--accent), var(--accent-end));
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-description {
  font-size: 16px;
  margin-top: var(--s6);
  line-height: 1.8;
}
.hero-actions {
  margin-top: var(--s6);
  gap: var(--s5);
}
.hero-foot {
  margin-top: var(--s8);
  padding-top: var(--s5);
}
.button {
  border-radius: 6px;
  min-height: 48px;
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
  gap: var(--s5);
}
.button:hover {
  background: var(--accent);
  color: var(--paper);
}
.button span,
.text-link span,
.contact-email span,
.nav-contact span {
  display: inline-block;
  transition: transform 220ms;
}
.button:hover span,
.text-link:hover span,
.contact-email:hover span,
.nav-contact:hover span {
  transform: translate(3px, -2px);
}
.button:active {
  transform: translateY(0) scale(0.98);
}
.text-link {
  min-height: 44px;
  padding-block: 10px;
  border: 0;
  position: relative;
}
.text-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 4px;
  width: 100%;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0.3);
  transform-origin: left;
  transition: transform 230ms;
}
.text-link:hover::after {
  transform: scaleX(1);
}
:where(
  .social-links a,
  .back-link,
  .archive-link,
  .site-footer a,
  .note-content a,
  .book-note a
) {
  display: inline-block;
  transition:
    transform 200ms,
    text-decoration-color 200ms;
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 6px;
}
:where(
  .social-links a,
  .back-link,
  .archive-link,
  .site-footer a,
  .note-content a,
  .book-note a
):hover {
  transform: translateY(-2px);
  text-decoration-color: currentColor;
}
.nav-contact,
.menu-toggle,
.filter-button {
  transition:
    transform 200ms,
    background-color 200ms,
    border-color 200ms;
}
.nav-contact:hover,
.menu-toggle:hover,
.filter-button:hover {
  transform: translateY(-2px);
  background: var(--accent-soft);
}
.filter-button[aria-pressed="true"]:hover {
  background: var(--ink);
}
.round-arrow {
  border-radius: 8px;
  border-color: var(--line);
  transition:
    transform 250ms,
    background-color 250ms,
    color 250ms;
}
.project-card:hover .round-arrow,
.next-project:hover .round-arrow {
  transform: translate(3px, -3px);
  background: var(--accent);
  color: var(--paper);
  border-color: var(--accent);
}
.section,
.notes,
.about {
  padding-block: var(--section-space);
}
.section-heading {
  margin-bottom: var(--s7);
  gap: var(--s6);
}
.section-heading h2 {
  margin-top: var(--s4);
}
.section-heading > p {
  line-height: 1.8;
}
.project-feature {
  background: var(--surface);
  border-color: var(--line);
  border-radius: 12px;
  margin-bottom: var(--s5);
  transition:
    transform 300ms,
    box-shadow 300ms,
    border-color 300ms;
}
.project-feature:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}
.project-feature-copy {
  padding: var(--s7);
}
.project-feature h3 {
  margin-block: var(--s5);
}
.project-feature p {
  color: var(--muted);
}
.project-feature .text-link {
  border: 0;
  padding-block: var(--s5) 10px;
}
.project-number {
  color: var(--muted);
  font-size: 11px;
}
.project-grid {
  gap: var(--s5);
}
.project-card .project-visual {
  border-radius: 12px;
  border-color: var(--line);
}
.project-card-copy {
  padding-top: var(--s5);
}
.market-visual {
  background: #142638;
}
.market-visual::before {
  background-image:
    linear-gradient(#9cd7e414 1px, transparent 1px),
    linear-gradient(90deg, #9cd7e414 1px, transparent 1px);
  background-size: 26px 26px;
}
.market-sheet {
  background: #152e43;
  border: 1px solid #446c83;
  box-shadow: 9px 12px 0 #070f192e;
  color: #e6f4ff;
  border-radius: 4px;
}
.sheet-top,
.sheet-bottom,
.sheet-mid small,
.market-visual .visual-stamp {
  color: #b7d3e5;
}
.market-chart {
  border-color: #6a92a7;
}
.market-chart i {
  background: #77dcc0;
  border-radius: 2px 2px 0 0;
}
.market-chart i:nth-child(n + 8) {
  background: #81a6ff;
}
.research-visual {
  background: var(--surface-2);
}
.research-visual::before {
  background-image:
    linear-gradient(
      color-mix(in srgb, var(--accent) 7%, transparent) 1px,
      transparent 1px
    ),
    linear-gradient(
      90deg,
      color-mix(in srgb, var(--accent) 7%, transparent) 1px,
      transparent 1px
    );
}
.letter-tile {
  background: var(--surface);
  border-color: var(--line);
  color: var(--ink);
  font-family: var(--heading);
  box-shadow: 0 5px 15px #0000000a;
}
.visual-caption {
  color: var(--muted);
  font-size: 11px;
}
.tile-trail::before {
  border-color: var(--accent);
}
.trail-points i {
  background: var(--accent);
}
.evaluation-visual {
  background: var(--accent-soft);
}
.report-sheet {
  background: var(--surface);
  border-color: var(--line);
  color: var(--ink);
  box-shadow: 8px 10px 0 color-mix(in srgb, var(--accent) 10%, transparent);
}
.report-row {
  border-color: var(--line);
}
.report-row span:first-child,
.report-foot {
  color: var(--muted);
}
.mini-track {
  background: var(--surface-3);
}
.mini-track i {
  background: var(--accent);
}
.work-bottom {
  margin-top: var(--s6);
  padding-top: var(--s5);
}
.lab-section {
  padding-block: var(--section-space);
  background: var(--surface-2);
}
.lab-layout {
  gap: var(--s8);
}
.lab-intro h2 em {
  font-family: var(--heading);
  font-style: normal;
  font-weight: 600;
}
.lab-intro > p {
  margin-top: var(--s5);
}
.lab-number {
  color: var(--accent);
  line-height: 1.7;
}
.eval-panel {
  background: var(--surface);
  border-color: var(--line);
  border-radius: 12px;
  padding: var(--s6);
  box-shadow: var(--shadow);
}
.eval-top {
  margin-bottom: var(--s5);
  font-family: var(--heading);
  font-weight: 600;
  font-size: 15px;
}
.sample-select {
  background: var(--surface-2);
  border-color: var(--line);
  color: var(--ink);
  min-height: 48px;
  padding: 12px 32px 12px 12px;
  font-size: 13px;
  max-width: 100%;
  text-overflow: ellipsis;
}
.expected-answer {
  margin-block: var(--s3) var(--s5);
}
.selected-message {
  display: none;
}
.eval-candidates {
  gap: var(--s3);
}
.candidate {
  border-color: var(--line);
  padding: var(--s4);
  border-radius: 6px;
  background: var(--paper);
  transition:
    border-color 220ms,
    box-shadow 220ms;
}
.candidate-code {
  color: var(--muted);
  font-size: 11px;
  padding-top: var(--s3);
}
.result-chip {
  color: var(--positive);
  background: var(--positive-bg);
}
.result-chip.mismatch {
  color: var(--negative);
  background: var(--negative-bg);
}
.case-score {
  font: 10px/1.6 var(--mono);
  margin-top: var(--s3);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  color: var(--muted);
}
.case-score strong {
  font-family: var(--heading);
  font-size: 22px;
  font-weight: 500;
  color: var(--ink);
}
.eval-metric {
  margin-top: var(--s5);
  padding-bottom: var(--s3);
  gap: var(--s3);
}
.eval-metric select {
  min-height: 44px;
  background: var(--surface-2);
  border-color: var(--line);
  color: var(--ink);
  padding: 8px;
  font-size: 11px;
  max-width: 200px;
}
.scores {
  padding-top: var(--s4);
  gap: var(--s3);
}
.score strong {
  font-family: var(--heading);
  font-weight: 500;
  letter-spacing: -0.06em;
}
.scores-updated .case-score strong,
.scores-updated .score strong {
  animation: score-flash 750ms ease-out;
}
.scores-updated .candidate {
  border-color: var(--accent);
}
@keyframes score-flash {
  0% {
    color: var(--accent);
    transform: translateY(-3px);
  }
  100% {
    color: var(--ink);
    transform: translateY(0);
  }
}
.book-shell {
  padding-top: var(--s5);
  translate: 0 var(--anchor-offset, 0px);
}
.book-shell::after {
  border-color: var(--line);
  border-radius: 14px;
  inset: 40px -9px -8px 12px;
  transform: rotate(1.4deg);
}
.book-caption {
  font-size: 10px;
  color: var(--muted);
}
.order-book {
  background: var(--terminal);
  color: var(--terminal-text);
  border: 1px solid var(--terminal-line);
  border-radius: 12px;
  padding: var(--s5);
  box-shadow: 0 25px 70px -32px #10295b70;
}
.book-heading {
  border-color: var(--terminal-line);
  padding-bottom: var(--s4);
  margin-bottom: var(--s4);
}
.book-title {
  font-family: var(--heading);
  font-size: 15px;
}
.book-title span,
.book-live,
.book-stats span,
.order-book .book-status {
  color: var(--terminal-muted);
  color: var(--terminal-muted);
}
.book-live::before {
  background: var(--bid);
}
.book-stats {
  margin-bottom: var(--s4);
}
.book-stats strong {
  color: var(--terminal-text);
}
.depth-heading {
  font-size: 10px;
}
.depth-heading.buy {
  color: var(--bid);
}
.depth-heading.sell {
  color: var(--ask);
}
.depth-row {
  font-size: 12px;
  padding: 5px 8px;
  color: var(--terminal-text);
  border: 1px solid transparent;
  border-radius: 2px;
}
.depth-row::before {
  background: #7cdec01f;
  transition: width 250ms;
}
.sell .depth-row::before {
  background: #ffb4a11f;
}
.depth-row.price-moved {
  border-color: #9cc0ff;
  background: #254366;
  animation: best-price 800ms ease-out;
}
@keyframes best-price {
  from {
    background: #456b9a;
  }
  to {
    background: #254366;
  }
}
.book-form {
  border-color: var(--terminal-line);
  margin-top: var(--s4);
  padding-top: var(--s4);
}
.book-controls {
  gap: var(--s2);
}
.book-control label {
  color: var(--terminal-muted);
  font-size: 10px;
}
.book-control input,
.book-control select {
  min-height: 44px;
  font-size: 13px;
  border-color: #526078;
  background: #1a2a3f;
  color: var(--terminal-text);
  padding: 8px;
}
.book-control input:focus-visible,
.book-control select:focus-visible,
.order-book button:focus-visible {
  outline-color: #afc8ff;
}
.book-form button[type="submit"] {
  min-height: 46px;
  padding: 12px;
  background: #a9c1ff;
  color: #102445;
  font-size: 12px;
  transition:
    background 150ms,
    transform 150ms;
}
.book-form button[type="submit"]:hover {
  background: #d0ddff;
  transform: translateY(-1px);
}
.book-form button[type="submit"]:active {
  transform: scale(0.985);
}
.book-form button[disabled] {
  opacity: 0.65;
  transform: none;
}
.book-footer {
  margin-top: var(--s3);
  gap: var(--s2);
}
.book-outcome {
  flex: 1;
  min-width: 0;
}
.book-status {
  font-size: 11px;
  min-height: 36px;
}
.order-book .book-explanation {
  font-size: 11px;
  line-height: 1.7;
  color: #c8d8ee;
  margin-top: var(--s2);
  min-height: 38px;
}
.reset-book {
  min-width: 54px;
  min-height: 44px;
  padding: 8px 3px;
  font-size: 11px;
  color: var(--terminal-text);
  border-color: #7d94b4;
  transition: transform 200ms;
}
.reset-book:hover {
  transform: rotate(-5deg);
}
.empty-depth {
  color: var(--terminal-muted);
}
.widget-state {
  display: flex;
  align-items: center;
  gap: 7px;
  min-height: 28px;
  margin: -4px 0 var(--s3);
  font: 9px/1.6 var(--mono);
  color: var(--muted);
}
.order-book .widget-state {
  color: var(--terminal-muted);
}
.widget-state-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
  flex: none;
}
[data-widget-state="ready"] .widget-state-dot {
  background: var(--positive);
}
.order-book[data-widget-state="ready"] .widget-state-dot {
  background: var(--bid);
}
.widget-retry {
  margin-left: auto;
  color: inherit;
  background: none;
  border: 1px solid currentColor;
  border-radius: 4px;
  min-height: 44px;
  min-width: 58px;
  transition: transform 150ms;
}
.widget-retry:hover {
  transform: translateY(-2px);
}
[data-widget-state="loading"] :is(.depth-row, .candidate) {
  position: relative;
  overflow: hidden;
}
[data-widget-state="loading"] :is(.depth-row, .candidate)::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, transparent, #91b0ff30, transparent);
  transform: translateX(-100%);
  animation: skeleton 1.1s infinite;
  pointer-events: none;
}
@keyframes skeleton {
  to {
    transform: translateX(100%);
  }
}
.static-snapshot-note {
  margin-top: var(--s5);
  padding: var(--s4);
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 6px;
  font-size: 12px;
  color: var(--muted);
}
.static-snapshot-note strong {
  color: var(--ink);
  font-family: var(--heading);
  font-size: 14px;
}
.static-snapshot-note p {
  margin-top: var(--s2);
}
.order-book .static-snapshot-note {
  background: #1a2a3f;
  border-color: var(--terminal-line);
  color: var(--terminal-muted);
}
.order-book .static-snapshot-note strong {
  color: var(--terminal-text);
}
.notes-heading {
  margin-bottom: var(--s5);
}
.note summary {
  padding-block: var(--s5);
}
.note summary:hover .note-toggle {
  transform: rotate(90deg);
}
.note[open] summary:hover .note-toggle {
  transform: rotate(135deg);
}
.note-content {
  padding-bottom: var(--s5);
}
.note-content a {
  color: var(--accent);
}
.about-grid {
  gap: var(--s9);
}
.portrait-wrap {
  translate: 0 var(--anchor-offset, 0px);
}
.portrait-wrap::after {
  background: var(--surface-3);
  border: 1px solid var(--line);
  border-radius: 7px;
}
.portrait {
  border-radius: 7px;
  filter: saturate(0.8);
}
.about-copy h2 {
  margin-block: var(--s4) var(--s5);
}
.personal-line {
  margin-top: var(--s5);
  gap: var(--s2);
}
.experience {
  margin-top: var(--s6);
  padding-top: var(--s5);
}
.contact {
  background: #101a29;
  color: #edf2ff;
  padding-block: var(--s8);
}
.contact h2 {
  color: #edf2ff;
}
.contact .eyebrow,
.social-links {
  color: #b6c5dc;
}
.contact-email {
  border-color: #72849f;
}
.contact-email:hover,
.social-links a:hover {
  color: #aac2ff;
}
.site-footer {
  background: #101a29;
  color: #b6c5dc;
  border-color: #35435a;
}
.page-intro {
  padding-block: var(--s8) var(--s7);
}
.back-link {
  min-height: 44px;
  align-items: center;
}
.story-top {
  padding-block: var(--s5) var(--s8);
  gap: var(--s8);
}
.story-body {
  padding-block: var(--s8);
  gap: var(--s8);
}
.story-body code {
  background: var(--surface-2);
  color: var(--ink);
}
.flow {
  background: var(--surface-2);
  border-color: var(--line);
}
.flow-step {
  background: var(--surface);
  border-color: var(--line);
}
.story-callout {
  border-color: var(--accent);
}
.filter-button {
  min-height: 44px;
}
.archive-search {
  min-height: 44px;
  border-color: var(--line);
}
.archive-item {
  padding-block: var(--s5);
  transition:
    padding 200ms,
    background-color 200ms;
}
.archive-item:hover {
  background: var(--surface);
  padding-inline: var(--s3);
}
.archive-item h2 a {
  background: linear-gradient(var(--accent), var(--accent)) left bottom/0 1px
    no-repeat;
  transition: background-size 220ms;
}
.archive-item h2 a:hover {
  background-size: 100% 1px;
}
.motion-ready [data-reveal] {
  opacity: 0;
  transform: translateY(17px);
  transition:
    opacity 550ms,
    transform 550ms;
  transition-delay: var(--reveal-delay, 0ms);
}
.motion-ready [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}
@media (max-width: 1100px) {
  .hero-grid {
    gap: var(--s6);
  }
  .hero-copy h1 {
    font-size: clamp(3.2rem, 6.3vw, 4.8rem);
  }
  .project-feature-copy {
    padding: var(--s6);
  }
  .site-nav {
    gap: var(--s4);
  }
  .header-inner {
    gap: var(--s4);
  }
  .about-grid,
  .story-top,
  .lab-layout {
    gap: var(--s7);
  }
}
@media (max-width: 800px) {
  :root {
    --section-space: var(--s8);
  }
  .hero {
    padding-top: var(--s7);
  }
  .hero-topline {
    margin-bottom: var(--s6);
  }
  .hero-copy h1 {
    font-size: clamp(3.5rem, 8.8vw, 5.5rem);
  }
  .hero-grid {
    gap: var(--s7);
  }
  .hero-foot {
    margin-top: var(--s7);
  }
  .lab-intro h2 br {
    display: initial;
  }
  .section-heading {
    margin-bottom: var(--s6);
  }
  .site-nav {
    gap: 12px;
  }
  .site-nav .nav-contact {
    display: none;
  }
  .theme-toggle {
    min-width: 75px;
  }
  .about-grid,
  .story-top,
  .lab-layout {
    gap: var(--s6);
  }
  .story-body {
    padding-block: var(--s7);
    gap: var(--s5);
  }
}
@media (max-width: 540px) {
  .eval-panel .selected-message {
    display: block;
    margin-top: var(--s3);
    color: var(--ink);
    font-size: 14px;
    line-height: 1.6;
  }
  .header-inner {
    gap: var(--s2);
    height: 72px;
  }
  .brand {
    margin-right: auto;
    font-size: 14px;
    gap: 6px;
  }
  .brand-mark {
    font-size: 25px;
  }
  .menu-toggle {
    order: 3;
    min-height: 44px;
    min-width: 64px;
    border-radius: 6px;
    padding: 8px 10px;
    background: var(--surface);
    color: var(--ink);
  }
  .theme-toggle {
    order: 2;
    min-width: 44px;
    width: 44px;
  }
  .theme-toggle [data-theme-label] {
    display: none;
  }
  .site-nav {
    margin: 0;
    top: 71px;
    padding: var(--s4);
    background: var(--paper);
    box-shadow: var(--shadow);
  }
  .site-nav a {
    padding-inline: 8px;
  }
  .hero {
    padding-top: var(--s6);
  }
  .hero-copy h1 {
    font-size: clamp(2.8rem, 11.3vw, 4.25rem);
    line-height: 1.07;
    letter-spacing: -0.065em;
  }
  .hero-topline {
    margin-bottom: var(--s6);
    gap: var(--s2);
    align-items: start;
  }
  .hero-topline .eyebrow {
    max-width: 195px;
  }
  .local-time {
    font-size: 9px;
    text-align: right;
  }
  .hero-description {
    font-size: 15px;
    margin-top: var(--s5);
  }
  .hero-actions {
    margin-top: var(--s5);
    gap: var(--s4);
  }
  .hero-actions .text-link {
    font-size: 12px;
  }
  .hero-foot {
    margin-top: var(--s6);
  }
  .project-feature-copy {
    padding: var(--s5);
  }
  .project-feature h3 {
    margin-block: var(--s4);
  }
  .project-grid {
    gap: var(--s6);
  }
  .project-card-copy {
    padding-top: var(--s4);
  }
  .project-feature .project-visual {
    min-height: 275px;
  }
  .lab-intro h2 {
    font-size: 2.6rem;
  }
  .eval-panel {
    padding: var(--s4);
  }
  .eval-candidates {
    gap: var(--s2);
  }
  .candidate {
    padding: var(--s3);
  }
  .candidate-code {
    font-size: 10px;
  }
  .case-score {
    font-size: 9px;
    gap: 4px;
    flex-wrap: wrap;
  }
  .case-score strong {
    font-size: 23px;
  }
  .sample-select {
    font-size: 16px;
    width: 100%;
    min-width: 0;
  }
  .eval-metric select {
    font-size: 16px;
    width: 100%;
    max-width: none;
  }
  .eval-metric {
    align-items: stretch;
  }
  .order-book {
    padding: var(--s4);
  }
  .book-control input,
  .book-control select {
    font-size: 16px;
    padding: 8px 5px;
  }
  .book-depth {
    gap: var(--s3);
  }
  .depth-row {
    font-size: 11px;
    padding: 5px 6px;
  }
  .book-caption {
    font-size: 9px;
  }
  .book-status,
  .book-explanation {
    font-size: 11px;
  }
  .book-footer {
    flex-wrap: wrap;
  }
  .book-outcome {
    flex-basis: calc(100% - 66px);
  }
  .widget-state {
    font-size: 8px;
  }
  .book-shell::after {
    right: -5px;
  }
  .book-note {
    flex-wrap: wrap;
  }
  .book-note a {
    min-height: 32px;
    padding-top: 4px;
  }
  .portrait-wrap {
    width: 230px;
  }
  .contact {
    padding-block: var(--s7);
  }
  .page-intro {
    padding-block: var(--s6);
  }
  .page-intro h1 {
    font-size: 3rem;
  }
  .story-top {
    padding-block: var(--s4) var(--s7);
  }
  .archive-item:hover {
    padding-inline: 0;
  }
  .archive-item .archive-link.muted::after {
    content: "—";
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
  .motion-ready [data-reveal] {
    opacity: 1;
    transform: none;
  }
  .book-shell,
  .portrait-wrap {
    translate: none;
  }
}