:root {
  color-scheme: light;
  --paper: #eeece5;
  --paper-light: #f7f5ee;
  --ink: #182826;
  --ink-soft: #56615b;
  --line: #aeb5aa;
  --accent: #b64e36;
  --accent-light: #e3a27c;
  --serif: Georgia, "Times New Roman", serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--mono);
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  z-index: -1;
  inset: 0;
  pointer-events: none;
  opacity: .3;
  background-image: radial-gradient(#858c81 0.45px, transparent 0.45px);
  background-size: 7px 7px;
}

button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; }

button:focus-visible, a:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 5px;
}

.site-shell {
  width: min(100% - 96px, 1512px);
  margin: 0 auto;
}

.masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 83px;
  border-bottom: 1px solid var(--ink);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
}

.wordmark, .about-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  white-space: nowrap;
}

.wordmark:hover, .about-link:hover, .footer a:hover { color: var(--accent); }

.wordmark-symbol {
  display: grid;
  place-items: center;
  width: 29px;
  height: 29px;
  border: 1px solid currentColor;
  border-radius: 50%;
  font-family: var(--serif);
  font-size: 25px;
  font-weight: 400;
  line-height: 1;
}

.masthead-note { color: var(--ink-soft); }
.about-link span { font-size: 17px; font-weight: 400; }

.introduction {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(225px, 330px);
  grid-template-rows: auto auto;
  align-items: end;
  column-gap: 40px;
  padding: 55px 0 59px;
}

.overline {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 27px;
  color: var(--accent);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .12em;
}

.overline-rule { display: block; width: 32px; height: 1px; background: var(--accent); }

h1, h2, p { margin-top: 0; }

h1 {
  margin-bottom: 0;
  font-family: var(--serif);
  font-size: clamp(64px, 7.2vw, 119px);
  font-weight: 400;
  letter-spacing: -.069em;
  line-height: .96;
}

h1 em { color: var(--accent); font-weight: 400; }

.introduction p {
  max-width: 320px;
  margin-bottom: 6px;
  font-family: var(--serif);
  font-size: clamp(18px, 1.45vw, 22px);
  line-height: 1.42;
}

.experience {
  display: grid;
  grid-template-columns: minmax(310px, .82fr) minmax(0, 1.18fr);
  min-height: 510px;
  border: 1px solid var(--ink);
  background: var(--paper-light);
}

.experience-copy {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 32px clamp(28px, 3.2vw, 57px) 35px;
  border-right: 1px solid var(--ink);
}

.section-heading, .panel-topline, .panel-bottomline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  color: var(--ink-soft);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .085em;
  white-space: nowrap;
}

.section-heading > span:first-child { color: var(--accent); }
.section-heading-rule { flex: 1; height: 1px; background: var(--line); }

.chapter {
  display: flex;
  flex: 1;
  flex-direction: column;
  justify-content: center;
  padding: 35px 0;
}

.chapter h2 {
  max-width: 500px;
  margin-bottom: 27px;
  font-family: var(--serif);
  font-size: clamp(43px, 4.15vw, 70px);
  font-weight: 400;
  letter-spacing: -.065em;
  line-height: 1.02;
}

.chapter p {
  max-width: 440px;
  margin-bottom: 0;
  font-family: var(--serif);
  font-size: clamp(18px, 1.35vw, 21px);
  line-height: 1.5;
}

.field-note {
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

.field-note-label {
  color: var(--accent);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .12em;
}

.field-note p {
  margin: 9px 0 0;
  color: var(--ink-soft);
  font-size: 12px;
  line-height: 1.5;
}

.revision-note {
  margin-top: 17px;
  border-left: 2px solid var(--accent);
  padding: 3px 0 1px 15px;
}

.revision-note .revision-line {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 10px;
  margin: 0 0 10px;
  color: var(--ink);
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.25;
}

.revision-note .revision-tag {
  align-self: start;
  padding-top: 5px;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .09em;
}

.revision-note.is-revised .first-draft {
  color: var(--ink-soft);
  text-decoration: line-through;
  text-decoration-color: var(--accent);
  text-decoration-thickness: 1px;
}

.revision-button {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  border: 0;
  padding: 4px 0;
  color: var(--accent);
  background: transparent;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .08em;
  cursor: pointer;
}

.revision-button:hover { color: var(--ink); }
.revision-button span:last-child { font-size: 17px; font-weight: 400; line-height: .8; }

.diagram-panel {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 31px 33px 27px;
  overflow: hidden;
}

.diagram {
  display: block;
  width: 100%;
  max-height: 420px;
  flex: 1;
  margin: auto;
  overflow: visible;
}

.diagram-frame, .diagram-guide, .quiet-line, .primary-line, .rays,
.correction-mark, .accent-ring, .block-outline {
  fill: none;
  vector-effect: non-scaling-stroke;
}

.diagram-frame { stroke: #a4aea3; stroke-width: 1; }
.diagram-guide { stroke: #ced4c8; stroke-width: 1; }
.quiet-line { stroke: #7b8880; stroke-width: 1.7; }
.primary-line { stroke: var(--accent); stroke-width: 2.7; }
.halo { fill: #eac9ad; opacity: .47; }
.accent-dot { fill: var(--accent); }
.small-dot { fill: #77867d; }
.block-fill { fill: #d9a88e; opacity: .8; }
.block-fill-secondary { fill: #aab9a8; }
.block-outline { stroke: var(--accent); stroke-width: 2; }
.correction-mark { stroke: var(--accent); stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }
.accent-ring { stroke: var(--accent); stroke-width: 2; }
.rays { stroke: var(--accent); stroke-width: 1.5; }
.diagram-text {
  fill: #58665e;
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 1.1px;
}
.chosen-text { fill: var(--accent); }
.scene { display: none; }
.scene.is-active { display: block; }
.scene.is-active .draw-line { animation: draw 1.15s ease-out both; }
.scene.is-active .accent-dot { animation: appear .5s .25s backwards; }
@keyframes draw { from { stroke-dasharray: 1000; stroke-dashoffset: 1000; } to { stroke-dasharray: 1000; stroke-dashoffset: 0; } }
@keyframes appear { from { opacity: 0; transform: scale(.7); transform-origin: center; } to { opacity: 1; transform: scale(1); transform-origin: center; } }

.panel-bottomline { margin-top: auto; }
.panel-bottomline span:last-child { color: var(--accent); }

.stage-navigation {
  display: flex;
  justify-content: space-between;
  gap: 35px;
  border-bottom: 1px solid var(--ink);
  padding: 23px 0 32px;
}

.step-list { display: flex; flex: 1; gap: clamp(7px, 1.6vw, 28px); }

.step-button {
  display: flex;
  flex: 1;
  flex-direction: column;
  align-items: flex-start;
  gap: 13px;
  min-width: 0;
  border: 0;
  border-top: 1px solid var(--line);
  padding: 11px 0 0;
  color: var(--ink-soft);
  background: transparent;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .09em;
  text-align: left;
  cursor: pointer;
  transition: color .2s ease, border-color .2s ease;
}

.step-button:hover, .step-button.is-current { color: var(--ink); border-color: var(--accent); }
.step-button.is-current span:first-child { color: var(--accent); }

.step-arrows { display: flex; gap: 9px; align-self: flex-end; }
.step-arrows button {
  width: 44px;
  height: 44px;
  border: 1px solid var(--ink);
  border-radius: 50%;
  color: var(--paper-light);
  background: var(--ink);
  font-family: var(--serif);
  font-size: 23px;
  line-height: 1;
  cursor: pointer;
  transition: color .2s ease, background .2s ease;
}
.step-arrows button:hover:not(:disabled) { background: var(--accent); border-color: var(--accent); }
.step-arrows button:disabled { color: var(--line); border-color: var(--line); background: transparent; cursor: default; }

.afterword {
  display: grid;
  grid-template-columns: minmax(200px, .55fr) minmax(0, 1fr);
  gap: 45px;
  padding: 84px 0 104px;
}

.afterword-label {
  color: var(--accent);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
}

.afterword-label span { margin-left: 12px; font-size: 22px; font-weight: 400; }

.afterword h2 {
  margin-bottom: 22px;
  font-family: var(--serif);
  font-size: clamp(43px, 5vw, 76px);
  font-weight: 400;
  letter-spacing: -.062em;
  line-height: 1;
}

.afterword p {
  max-width: 720px;
  margin-bottom: 0;
  font-family: var(--serif);
  font-size: clamp(20px, 2vw, 28px);
  line-height: 1.42;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  border-top: 1px solid var(--ink);
  padding: 26px 0 37px;
  color: var(--ink-soft);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .08em;
}
.footer a { text-decoration: none; }

@media (max-width: 1100px) {
  .site-shell { width: min(100% - 60px, 1512px); }
  .introduction { grid-template-columns: 1fr; gap: 22px; }
  .overline { margin-bottom: 0; }
  .introduction p { max-width: 560px; }
  .experience { grid-template-columns: minmax(300px, .9fr) minmax(0, 1.1fr); }
  .experience-copy { padding-inline: 28px; }
  .chapter h2 { font-size: clamp(43px, 5vw, 60px); }
  .diagram-panel { padding-inline: 20px; }
}

@media (max-width: 720px) {
  .site-shell { width: min(100% - 36px, 560px); }
  .masthead { height: 67px; }
  .masthead-note { display: none; }
  .introduction { padding: 43px 0 42px; }
  .overline { font-size: 10px; }
  h1 { font-size: clamp(48px, 11.5vw, 77px); }
  .introduction p { font-size: 19px; }
  .experience { display: flex; flex-direction: column; }
  .experience-copy { min-height: 420px; border-right: 0; border-bottom: 1px solid var(--ink); }
  .chapter { padding: 32px 0; }
  .chapter h2 { max-width: 500px; font-size: clamp(45px, 9vw, 62px); }
  .chapter p { font-size: 19px; }
  .diagram-panel { min-height: 340px; padding: 20px 18px 18px; }
  .diagram { min-height: 260px; }
  .stage-navigation { align-items: flex-start; flex-direction: column-reverse; gap: 22px; }
  .step-list { width: 100%; gap: 8px; }
  .step-button { font-size: 9px; letter-spacing: .025em; }
  .step-arrows { align-self: flex-end; }
  .afterword { grid-template-columns: 1fr; gap: 23px; padding: 75px 0 80px; }
}

@media (max-width: 410px) {
  .site-shell { width: calc(100% - 28px); }
  .about-link { font-size: 10px; }
  .wordmark { font-size: 10px; }
  .experience-copy { min-height: 450px; padding-inline: 22px; }
  .step-button span:last-child { font-size: 8px; }
  .footer { flex-direction: column; gap: 10px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}