:root {
  color-scheme: light dark;
  --surface: #f7f7f5;
  --ink: #111;
  --muted: rgb(17 17 17 / 60%);
  --line: rgb(17 17 17 / 10%);
  --glow: #fff;
  --panel: rgb(17 17 17 / 3%);
  --panel-strong: rgb(17 17 17 / 5%);
  scroll-behavior: smooth;
}

* {
  box-sizing: border-box;
}

::selection {
  color: var(--surface);
  background: var(--ink);
}

body {
  min-height: 100vh;
  min-height: 100dvh;
  margin: 0;
  padding: 0 env(safe-area-inset-right) 0 env(safe-area-inset-left);
  color: var(--ink);
  background: radial-gradient(circle at 50% 12%, var(--glow), transparent 55vmin), var(--surface);
  font-family: system-ui, sans-serif;
}

.skip-link {
  position: fixed;
  z-index: 1;
  top: calc(12px + env(safe-area-inset-top));
  left: calc(12px + env(safe-area-inset-left));
  padding: 10px 12px;
  color: var(--surface);
  background: var(--ink);
  font-size: 11px;
  transform: translateY(calc(-100% - 24px));
}

.skip-link:focus {
  transform: none;
}

.shell {
  width: min(100% - 40px, 820px);
  margin: 0 auto;
  padding: clamp(56px, 10vw, 112px) 0 72px;
}

header {
  padding-bottom: clamp(48px, 8vw, 84px);
}

.site-link,
footer a {
  color: var(--muted);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-decoration: none;
  text-transform: uppercase;
}

.site-link:hover,
.site-link:focus-visible,
footer a:hover,
footer a:focus-visible {
  color: var(--ink);
}

.eyebrow {
  margin: 64px 0 18px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(42px, 9vw, 76px);
  font-weight: 500;
  letter-spacing: -0.055em;
  line-height: 0.95;
}

.intro {
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.history-print-context,
.history-print-source,
.history-print-date {
  display: none;
}

.no-js .history-tools {
  display: none;
}

.history-search-row {
  display: grid;
  padding: 8px;
  grid-template-columns: minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--panel);
  transition: border-color 160ms ease-out, box-shadow 160ms ease-out;
}

.history-search-row:focus-within {
  border-color: var(--ink);
  box-shadow: 0 0 0 3px var(--panel-strong);
}

.history-search-field {
  min-width: 0;
}

.history-search {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border: 0;
  border-radius: 0;
  color: var(--ink);
  background: transparent;
  font: 500 16px/1.4 system-ui, sans-serif;
  outline: 0;
}

.history-search::placeholder {
  color: var(--muted);
}

.history-submit,
.history-clear {
  min-width: 76px;
  min-height: 44px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--muted);
  background: var(--surface);
  font: 650 10px/1 system-ui, sans-serif;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
}

.history-submit {
  color: var(--ink);
  background: var(--panel-strong);
}

.history-submit:hover,
.history-submit:focus-visible,
.history-clear:hover,
.history-clear:focus-visible {
  color: var(--ink);
}

.history-submit:focus-visible,
.history-clear:focus-visible {
  border-radius: 2px;
  outline: 1px solid currentColor;
  outline-offset: 3px;
}

.history-submit:disabled,
.history-clear:disabled {
  opacity: 0.35;
  cursor: default;
}

.history-search-examples {
  margin: 14px 2px 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
}

.history-search-examples a {
  color: var(--ink);
  text-decoration-color: var(--line);
  text-underline-offset: 0.18em;
}

.history-search-examples a:hover,
.history-search-examples a:focus-visible {
  text-decoration-color: currentColor;
}

.history-search-examples a[aria-current="true"] {
  font-weight: 600;
  text-decoration-color: currentColor;
}

.history-search-help {
  margin: 7px 2px 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
}

.history-search-help summary {
  width: max-content;
  min-height: 44px;
  padding: 12px 0;
  color: var(--muted);
  font-size: 10px;
  font-weight: 650;
  letter-spacing: 0.11em;
  list-style: none;
  text-transform: uppercase;
  cursor: pointer;
}

.history-search-help summary::-webkit-details-marker {
  display: none;
}

.history-search-help summary::after {
  margin-left: 0.55em;
  content: "+";
}

.history-search-help[open] summary::after {
  content: "−";
}

.history-search-help summary:hover,
.history-search-help summary:focus-visible,
.history-search-help[open] summary {
  color: var(--ink);
}

.history-search-help summary:focus-visible {
  border-radius: 2px;
  outline: 1px solid currentColor;
  outline-offset: 3px;
}

.history-search-help p {
  max-width: 70ch;
  margin: 4px 0 10px;
}

.history-saved-note {
  margin: 8px 2px 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
}

.history-summary {
  display: flex;
  min-height: 1em;
  margin: 18px 0 16px;
  padding: 12px;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel);
}

.result-status {
  min-height: 1em;
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}

.result-status:empty {
  display: none;
}

.history-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 8px;
}

.history-order,
.history-saved,
.history-save-visible,
.random-improvement,
.history-share,
.history-copy,
.history-download,
.history-print,
.history-privacy,
.history-stats,
.history-feeds,
.history-highlights,
.history-about,
.history-map,
.history-milestones-link,
.history-colophon,
.history-help,
.history-action-menu > summary {
  flex: none;
  padding: 0;
  border: 0;
  color: var(--muted);
  background: transparent;
  font: 600 10px/1 system-ui, sans-serif;
  letter-spacing: 0.12em;
  text-decoration: none;
  text-transform: uppercase;
  cursor: pointer;
}

.history-actions > .history-order,
.history-actions > .history-saved,
.history-actions > .history-save-visible,
.history-actions > .random-improvement,
.history-actions > .history-action-menu > summary {
  min-height: 44px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
}

.history-actions > .history-order[aria-pressed="true"],
.history-actions > .history-saved[aria-pressed="true"],
.history-actions > .history-save-visible[aria-pressed="true"],
.history-actions > .history-save-visible[aria-pressed="mixed"],
.history-actions > .history-action-menu[open] > summary {
  border-color: var(--ink);
  color: var(--ink);
}

.history-order:focus-visible,
.history-saved:focus-visible,
.history-save-visible:focus-visible,
.random-improvement:focus-visible,
.history-share:focus-visible,
.history-copy:focus-visible,
.history-download:focus-visible,
.history-print:focus-visible,
.history-privacy:focus-visible,
.history-stats:focus-visible,
.history-feeds:focus-visible,
.history-highlights:focus-visible,
.history-about:focus-visible,
.history-map:focus-visible,
.history-milestones-link:focus-visible,
.history-colophon:focus-visible,
.history-help:focus-visible,
.history-action-menu > summary:focus-visible {
  color: var(--ink);
  border-radius: 2px;
  outline: 1px solid currentColor;
  outline-offset: 3px;
}

.random-improvement:disabled {
  opacity: 0.35;
  cursor: default;
}

.history-saved:disabled,
.history-save-visible:disabled {
  opacity: 0.35;
  cursor: default;
}

.history-saved[aria-pressed="true"],
.history-save-visible[aria-pressed="true"],
.history-save-visible[aria-pressed="mixed"] {
  color: var(--ink);
  font-weight: 650;
}

.history-save-visible {
  min-inline-size: 7.5em;
  text-align: center;
}

.history-copy {
  min-inline-size: 12em;
  text-align: center;
}

.history-share {
  min-inline-size: 11em;
  text-align: center;
}

.history-download {
  min-inline-size: 10em;
  text-align: center;
}

.history-copy:disabled {
  opacity: 0.35;
  cursor: default;
}

.history-copy[aria-busy="true"] {
  opacity: 0.6;
  cursor: wait;
}

.history-share:disabled {
  opacity: 0.6;
  cursor: wait;
}

.history-download[aria-disabled="true"] {
  opacity: 0.35;
  cursor: default;
}

.history-print:disabled {
  opacity: 0.35;
  cursor: default;
}

.history-action-menu {
  position: relative;
  flex: none;
}

.history-action-menu > summary {
  list-style: none;
}

.history-action-menu > summary::-webkit-details-marker {
  display: none;
}

.history-action-menu > summary::after {
  margin-left: 0.5em;
  content: "+";
}

.history-action-menu[open] > summary {
  color: var(--ink);
}

.history-action-menu[open] > summary::after {
  content: "−";
}

.history-action-menu-panel {
  position: absolute;
  z-index: 2;
  top: calc(100% + 12px);
  right: 0;
  display: grid;
  min-inline-size: 190px;
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface);
  box-shadow: 0 16px 40px rgb(17 17 17 / 12%);
}

.history-action-menu-panel > * {
  display: flex;
  min-block-size: 44px;
  min-inline-size: 0;
  padding: 0 10px;
  align-items: center;
  text-align: left;
  white-space: nowrap;
}

.history-shortcuts {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 10px;
}

.history-shortcuts summary {
  width: max-content;
  min-height: 44px;
  padding: 10px 0;
  font-size: 10px;
  font-weight: 650;
  letter-spacing: 0.12em;
  list-style: none;
  text-transform: uppercase;
  cursor: pointer;
}

.history-shortcuts summary::-webkit-details-marker {
  display: none;
}

.history-shortcuts summary::after {
  margin-left: 0.5em;
  content: "+";
}

.history-shortcuts[open] summary::after {
  content: "−";
}

.history-shortcuts summary:focus-visible {
  color: var(--ink);
  border-radius: 2px;
  outline: 1px solid currentColor;
  outline-offset: 3px;
}

.shortcut-list {
  display: flex;
  margin: 16px 0 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--line);
  flex-wrap: wrap;
  gap: 12px 24px;
}

.shortcut-list div,
.shortcut-list dt {
  display: flex;
  align-items: center;
}

.shortcut-list div {
  gap: 8px;
}

.shortcut-list dt,
.shortcut-list dd {
  margin: 0;
}

.shortcut-list kbd {
  min-width: 2.2em;
  padding: 0.25em 0.45em;
  border: 1px solid var(--line);
  border-radius: 3px;
  color: var(--ink);
  background: var(--surface);
  font: 500 9px/1 system-ui, sans-serif;
  text-align: center;
}

.history-milestone-disclosure {
  margin: 0 0 34px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel);
}

.history-milestone-disclosure > summary {
  display: flex;
  min-height: 52px;
  padding: 0 16px;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 650;
  letter-spacing: 0.12em;
  list-style: none;
  text-transform: uppercase;
  cursor: pointer;
}

.history-milestone-disclosure > summary::-webkit-details-marker {
  display: none;
}

.history-milestone-disclosure > summary strong {
  color: var(--ink);
  font-size: 11px;
  letter-spacing: 0;
  text-transform: none;
}

.history-milestone-disclosure > summary strong::after {
  margin-left: 0.65em;
  content: "+";
}

.history-milestone-disclosure[open] > summary strong::after {
  content: "−";
}

.history-milestone-disclosure > summary:hover,
.history-milestone-disclosure > summary:focus-visible,
.history-milestone-disclosure[open] > summary {
  color: var(--ink);
}

.history-milestone-disclosure > summary:focus-visible {
  outline: 1px solid var(--ink);
  outline-offset: -1px;
}

.history-milestones {
  display: grid;
  margin: 0;
  padding: 8px 12px 14px;
  grid-template-columns: repeat(10, minmax(0, 1fr));
  gap: 6px;
  border-top: 1px solid var(--line);
}

.history-milestones a {
  display: grid;
  min-height: 44px;
  place-items: center;
  border-radius: 8px;
  color: var(--muted);
  background: var(--surface);
  font-size: 10px;
  font-variant-numeric: tabular-nums;
  font-weight: 650;
  text-decoration: none;
  transition: color 160ms ease-out, background-color 160ms ease-out;
}

.history-milestones a:hover,
.history-milestones a:focus-visible {
  color: var(--ink);
  background: var(--panel-strong);
}

.history-milestones a:focus-visible {
  outline: 1px solid currentColor;
  outline-offset: -1px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

ol {
  margin: 0;
  padding-left: 4ch;
  scroll-margin-top: 24px;
}

li {
  padding: 18px 12px;
  border-top: 1px solid var(--line);
  font-size: clamp(14px, 2vw, 16px);
  line-height: 1.5;
  scroll-margin-block: 24px;
  transition: background-color 180ms ease-out;
}

li::marker {
  color: var(--muted);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
}

mark {
  padding: 0 0.12em;
  border-radius: 2px;
  color: inherit;
  background: var(--line);
}

.history-save {
  margin-left: 0.35em;
  padding: 0;
  border: 0;
  color: var(--muted);
  background: transparent;
  font: 600 0.7em/1 system-ui, sans-serif;
  letter-spacing: 0.08em;
  text-decoration: underline;
  text-decoration-color: var(--line);
  text-underline-offset: 0.2em;
  text-transform: uppercase;
  cursor: pointer;
  transition: color 160ms ease-out, text-decoration-color 160ms ease-out;
}

.history-save:hover,
.history-save:focus-visible,
.history-save[aria-pressed="true"] {
  color: var(--ink);
  text-decoration-color: currentColor;
}

.history-save:focus-visible {
  border-radius: 2px;
  outline: 1px solid currentColor;
  outline-offset: 3px;
}

.history-permalink {
  margin-left: 0.25em;
  color: var(--muted);
  font-size: 0.7em;
  font-weight: 600;
  letter-spacing: 0.08em;
  opacity: 0;
  text-transform: uppercase;
  text-underline-offset: 0.2em;
  transition: color 160ms ease-out, opacity 160ms ease-out;
}

li:hover .history-permalink,
.history-permalink:hover,
.history-permalink:focus-visible {
  color: var(--ink);
  opacity: 1;
}

.history-milestone-page {
  margin-left: 0.6em;
  color: var(--muted);
  font-size: 0.7em;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-underline-offset: 0.2em;
  transition: color 160ms ease-out;
}

.history-milestone-page:hover,
.history-milestone-page:focus-visible {
  color: var(--ink);
}

li:target,
li[aria-current="location"] {
  background: var(--line);
}

footer {
  display: flex;
  padding-top: 64px;
  align-items: center;
  justify-content: space-between;
}

@media (prefers-reduced-transparency: reduce) {
  body {
    background: var(--surface);
  }
}

@media (prefers-reduced-motion: reduce) {
  :root {
    scroll-behavior: auto;
  }

  li,
  .history-save,
  .history-permalink,
  .history-milestone-page {
    transition: none;
  }

  .history-search-row,
  .history-milestones a {
    transition: none;
  }
}

@media (hover: none) {
  .history-permalink {
    opacity: 1;
  }
}

@media (pointer: coarse) {
  .history-permalink,
  .history-save,
  .history-milestone-page {
    display: inline-flex;
    min-inline-size: 24px;
    min-block-size: 24px;
    align-items: center;
    justify-content: center;
    touch-action: manipulation;
  }
}

@media (max-width: 420px) {
  .history-search-row {
    grid-template-columns: 1fr 1fr;
    gap: 0 16px;
    padding-bottom: 8px;
  }

  .history-search-field {
    grid-column: 1 / -1;
  }

  .history-submit,
  .history-clear {
    min-width: 44px;
    min-height: 44px;
  }

  .history-submit {
    justify-self: start;
  }

  .history-clear {
    justify-self: end;
  }

  .history-summary {
    padding: 10px;
  }

  .history-actions {
    width: 100%;
    justify-content: flex-start;
  }

  .history-milestone-disclosure > summary {
    padding: 0 14px;
  }

  .history-milestones {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

@media (hover: hover) and (pointer: fine) {
  .history-order:hover,
  .history-saved:hover,
  .history-save-visible:hover,
  .random-improvement:hover,
  .history-share:hover,
  .history-copy:hover,
  .history-download:hover,
  .history-print:hover,
  .history-privacy:hover,
  .history-stats:hover,
  .history-feeds:hover,
  .history-highlights:hover,
  .history-about:hover,
  .history-map:hover,
  .history-milestones-link:hover,
  .history-colophon:hover,
  .history-help:hover,
  .history-action-menu > summary:hover,
  .history-shortcuts summary:hover {
    color: var(--ink);
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --surface: #111;
    --ink: #f7f7f5;
    --muted: rgb(247 247 245 / 60%);
    --line: rgb(247 247 245 / 10%);
    --glow: #30302e;
    --panel: rgb(247 247 245 / 3%);
    --panel-strong: rgb(247 247 245 / 6%);
  }
}

@media (forced-colors: active) {
  body {
    background: Canvas;
  }

  .history-search {
    border-color: CanvasText;
  }

  mark {
    color: HighlightText;
    background: Highlight;
    forced-color-adjust: none;
  }

  li:target {
    background: transparent;
    outline: 2px solid Highlight;
    outline-offset: -2px;
  }

  .history-save[aria-pressed="true"],
  .history-saved[aria-pressed="true"],
  .history-save-visible[aria-pressed="true"],
  .history-save-visible[aria-pressed="mixed"] {
    outline: 1px solid CanvasText;
    outline-offset: 2px;
  }

  .history-action-menu-panel {
    border-color: CanvasText;
    box-shadow: none;
  }

  .history-search-row,
  .history-summary,
  .history-milestone-disclosure {
    border-color: CanvasText;
  }
}

@media print {
  :root {
    color-scheme: light;
  }

  body {
    min-height: 0;
    color: #000;
    background: #fff;
  }

  .skip-link,
  .site-link,
  .history-tools,
  .history-shortcuts,
  .history-milestone-disclosure,
  .history-milestones,
  .history-save,
  .history-permalink,
  .history-milestone-page,
  footer {
    display: none !important;
  }

  .shell {
    width: 100%;
    padding: 0;
  }

  header {
    padding-bottom: 24px;
  }

  .eyebrow {
    margin: 0 0 12px;
  }

  h1 {
    font-size: 28pt;
  }

  .history-print-context:not([hidden]) {
    display: block;
    margin: 12px 0 0;
    font-size: 10pt;
  }

  .history-print-source:not([hidden]) {
    display: block;
    margin: 8px 0 0;
    overflow-wrap: anywhere;
    font-size: 8pt;
  }

  .history-print-source a {
    color: inherit;
    text-decoration: underline;
    text-underline-offset: 0.15em;
  }

  .history-print-date:not([hidden]) {
    display: block;
    margin: 4px 0 0;
    font-size: 8pt;
  }

  li {
    break-inside: avoid;
    border-color: #ddd;
    font-size: 10pt;
  }

  mark {
    padding: 0;
    color: inherit;
    background: transparent;
    font-weight: 700;
  }
}