:root {
  color-scheme: light;
  --paper: #e2f1f1;
  --ink: #233a38;
  --brass: #c4aa24;
  --white: #ffffff;
  --consequence: #84532e;
  --dock: 190px;
  --inset: 48px;
  --mast: 108px;
  --display: 'Besley', Georgia, serif;
  --body: 'Merriweather Sans', Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 32px; }
body { margin: 0; padding-right: var(--dock); background: var(--paper); color: var(--ink); font: 400 19px/1.7 var(--body); }
a { color: inherit; text-decoration-thickness: 1.5px; text-underline-offset: 5px; }
a:hover { text-decoration-thickness: 3px; }
a:focus-visible { outline: 3px solid var(--ink); outline-offset: 5px; background: var(--white); }
::selection { color: var(--ink); background: var(--brass); }
img { display: block; max-width: 100%; background: var(--paper); color: var(--ink); font: 400 16px/1.5 var(--body); }
p { margin: 0 0 1.2em; }
h1, h2, h3 { margin: 0; font-family: var(--display); font-weight: 400; line-height: 1.2; text-wrap: pretty; }
h1 { font-size: clamp(56px, 5.75vw, 88px); letter-spacing: -.05em; }
h2 { font-size: clamp(34px, 3.7vw, 54px); letter-spacing: -.04em; }
h3 { font-size: 30px; letter-spacing: -.025em; }
main { min-width: 0; }
.aps-skip { position: absolute; top: 12px; left: 20px; z-index: 9; padding: 10px 16px; background: var(--white); transform: translateY(-180%); }
.aps-skip:focus { transform: translateY(0); }

/* The name is a horizontal mast; the chapters occupy their own right edge. */
.aps-mast { min-height: var(--mast); padding: 32px var(--inset); border-bottom: 1px solid var(--ink); }
.aps-name { display: inline-flex; align-items: center; gap: 22px; font: 500 27px/1.5 var(--display); letter-spacing: -.04em; text-decoration: none; }
.aps-name::before { content: ''; width: 76px; height: 12px; background: linear-gradient(90deg, var(--brass) 0 4px, transparent 4px 72px, var(--brass) 72px), linear-gradient(transparent 5px, var(--brass) 5px 7px, transparent 7px); }
.aps-name:hover::before { background-color: var(--brass); }
.aps-dock { position: fixed; right: 0; top: 0; bottom: 0; width: var(--dock); padding: 40px 18px; z-index: 5; background: var(--white); border-left: 6px solid var(--brass); display: flex; flex-direction: column; justify-content: center; }
.aps-dock-title { margin: 0 4px 38px; font-size: 16px; line-height: 1.55; }
.aps-dock ol { list-style: none; margin: 0; padding: 0; display: grid; }
.aps-dock li { min-width: 0; }
.aps-dock a { display: block; padding: 22px 4px 24px; border-top: 2px solid var(--brass); font: 400 24px/1.27 var(--display); text-decoration: none; transition: background-color .18s, transform .18s; }
.aps-dock li:last-child a { border-bottom: 2px solid var(--brass); }
.aps-dock a:hover { background: var(--paper); transform: translateX(-7px); }
.aps-dock a:focus-visible { outline-offset: 1px; }
.aps-chapter-index { display: flex; justify-content: space-between; align-items: center; margin-bottom: 9px; font: 400 15px/1.4 var(--body); }
.aps-chapter-index i { font-size: 19px; }
.aps-edition { display: flex; gap: 12px; align-items: baseline; margin: 0 0 24px; font-size: 15px; line-height: 1.6; }
.aps-edition i { flex: 0 0 auto; font-size: 18px; }

/* A calendar opening, with the photograph deliberately on the next beat. */
.aps-opening { min-height: calc(100svh - var(--mast)); padding: 44px var(--inset) 60px; display: flex; flex-direction: column; justify-content: center; }
.aps-opening h1 { margin: 0 0 48px; max-width: 26ch; line-height: 1.13; }
.aps-opening h1 > span { display: block; }
.aps-opening-change { display: grid; grid-template-columns: minmax(0, 1fr) 238px; gap: 42px; padding-top: 34px; border-top: 5px solid var(--brass); align-items: start; }
.aps-main-change { display: grid; grid-template-columns: 150px minmax(0, 1fr); gap: 20px 32px; align-items: start; }
.aps-date { display: flex; align-items: center; gap: 17px; margin: 0 0 24px; font-size: 18px; line-height: 1.5; font-variant-numeric: lining-nums tabular-nums; }
.aps-date::before { content: ''; flex: 0 0 76px; height: 12px; background: linear-gradient(90deg, var(--brass) 0 4px, transparent 4px 72px, var(--brass) 72px), linear-gradient(transparent 5px, var(--brass) 5px 7px, transparent 7px); }
.aps-main-change .aps-date { grid-column: 1; grid-row: 1 / 3; position: relative; display: block; margin: -12px 0 0; padding-bottom: 35px; }
.aps-main-change .aps-date::before { position: absolute; left: 0; bottom: 0; width: 100%; animation: aps-date-opens .8s ease-out; transform-origin: left center; }
.aps-day { display: block; font: 400 148px/.96 var(--display); letter-spacing: -.075em; }
.aps-month { display: block; margin-top: 14px; font-size: 17px; }
.aps-main-change h2 { grid-column: 2; color: var(--consequence); font-size: clamp(30px, 2.8vw, 41px); letter-spacing: -.035em; }
.aps-main-change > p:not(.aps-date) { grid-column: 2; max-width: 46ch; margin: 0; }
.aps-term { position: sticky; top: 32px; padding: 28px 24px 26px; background: var(--white); border-left: 4px solid var(--brass); font-size: 17px; line-height: 1.65; }
.aps-term h3 { margin-bottom: 12px; font: 600 18px/1.45 var(--body); letter-spacing: 0; }
.aps-term p { margin: 0; }
.aps-opening .aps-term { margin: 0 calc(-1 * var(--inset)) 0 0; padding-right: var(--inset); }
@keyframes aps-date-opens { from { transform: scaleX(.35); } to { transform: scaleX(1); } }

.aps-home-photo { display: grid; grid-template-columns: 900px minmax(0, 1fr); margin: 0; }
.aps-home-photo img { width: 900px; height: 600px; object-fit: cover; }
.aps-home-photo figcaption { padding: 44px 28px 32px; border-top: 8px solid var(--brass); display: flex; flex-direction: column; justify-content: center; background: var(--paper); }
.aps-home-photo h2 { margin-bottom: 26px; font-size: 35px; }
.aps-home-photo p { font-size: 18px; line-height: 1.65; }
.aps-home-photo .aps-photo-note { margin-top: 8px; margin-bottom: 0; font-size: 16px; }

/* Long dates are reading landmarks. Legal notes hang into the outside margin. */
.aps-running { padding: 88px var(--inset) 34px; background: var(--white); }
.aps-running > h2 { max-width: 24ch; margin-bottom: 44px; }
.aps-period { display: grid; grid-template-columns: minmax(0, 1fr) 238px; gap: 64px; padding: 42px 0 54px; align-items: start; }
.aps-period + .aps-period { border-top: 3px solid var(--brass); }
.aps-period-copy { max-width: 66ch; }
.aps-period h3 { margin-bottom: 23px; color: var(--consequence); font-size: 37px; }
.aps-period .aps-term { margin-right: -24px; transform: translateY(-18px); background: var(--paper); }
.aps-period .aps-term h3 { color: var(--ink); font: 600 18px/1.45 var(--body); }
.aps-reading-link { display: inline-flex; align-items: center; gap: 13px; padding: 9px 0; border-bottom: 2px solid var(--ink); font-weight: 600; line-height: 1.5; text-decoration: none; transition: gap .18s, background-color .18s; }
.aps-reading-link:hover { gap: 20px; background: var(--paper); }
.aps-reading-link i { width: 22px; font-size: 21px; line-height: 1; flex: 0 0 auto; }
.aps-reading-link span { min-width: 0; }
.aps-responsibility { margin: 56px 0 84px; padding: 44px var(--inset) 50px; border-block: 5px solid var(--brass); background: var(--white); }
.aps-responsibility > h2 { max-width: 23ch; margin-bottom: 46px; }
.aps-duty-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 58px; }
.aps-duty-columns > div + div { padding-left: 36px; border-left: 3px solid var(--brass); }
.aps-duty-columns h3 { margin-bottom: 24px; font-size: 32px; color: var(--consequence); }
.aps-law-number { display: block; margin-bottom: 12px; font-size: clamp(58px, 6.5vw, 94px); line-height: 1; letter-spacing: -.06em; }
.aps-responsibility > .aps-reading-link { margin-top: 18px; }
.aps-continuity { padding: 0 var(--inset) 80px; display: grid; grid-template-columns: minmax(0, 1fr) 238px; gap: 64px; }
.aps-continuity h2 { max-width: 21ch; margin-bottom: 30px; }

.aps-source-end { padding: 40px var(--inset) 46px; border-top: 3px solid var(--brass); background: var(--white); }
.aps-source-end h2 { margin-bottom: 25px; font: 400 29px/1.35 var(--display); }
.aps-source-end ul { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 15px 40px; }
.aps-source-end li { max-width: 60ch; font-size: 17px; }
.aps-source-end p { margin: 28px 0 0; font-size: 16px; }
.aps-footer { padding: 42px var(--inset) 30px; display: grid; grid-template-columns: 1fr auto; gap: 28px 48px; border-top: 1px solid var(--ink); }
.aps-footer p { max-width: 65ch; margin: 0; font-size: 16px; }
.aps-footer nav { display: flex; gap: 22px; flex-wrap: wrap; font-size: 16px; }
.aps-copyright { grid-column: 1 / -1; }

/* Inner chapters keep their own photo with the section it was commissioned for. */
.aps-page-heading { padding: 54px var(--inset) 52px; border-bottom: 5px solid var(--brass); }
.aps-page-heading h1 { max-width: 23ch; font-size: clamp(48px, 5.1vw, 76px); line-height: 1.14; }
.aps-standfirst { max-width: 60ch; margin: 30px 0 0; font-size: 21px; line-height: 1.65; }
.aps-inner-section { padding: 54px var(--inset) 40px; }
.aps-inner-section > h2 { max-width: 26ch; margin-bottom: 34px; }
.aps-inner-section + .aps-inner-section { border-top: 3px solid var(--brass); }
.aps-inner-copy { display: grid; grid-template-columns: minmax(0, 1fr) 238px; gap: 64px; align-items: start; }
.aps-inner-copy > div { min-width: 0; max-width: 66ch; }
.aps-inner-copy > .aps-term { margin: -16px -24px 0 0; }
.aps-inner-copy h3 { margin: 30px 0 20px; color: var(--consequence); }
.aps-inner-copy > .aps-term h3 { color: var(--ink); margin: 0 0 12px; }
.aps-inner-copy ul { padding-left: 24px; }
.aps-inner-copy li { margin-bottom: 17px; }
.aps-inner-photo { margin: 40px calc(-1 * var(--inset)) 0; }
.aps-inner-photo img { width: 100%; height: auto; aspect-ratio: 1080 / 430; object-fit: cover; }
.aps-inner-photo figcaption { margin-left: 32%; padding: 24px 34px; border-left: 5px solid var(--brass); background: var(--white); font-size: 16px; }
.aps-inner-photo figcaption p { max-width: 70ch; margin: 0; }
.aps-entry { display: grid; grid-template-columns: 170px minmax(0, 1fr); gap: 28px; margin-bottom: 36px; }
.aps-entry:last-child { margin-bottom: 10px; }
.aps-entry time { display: block; padding-top: 5px; font: 400 25px/1.4 var(--display); letter-spacing: -.025em; }
.aps-entry h3 { margin: 0 0 16px; font-size: 29px; }
.aps-entry p { margin-bottom: 0; }
.aps-reference-list { padding: 8px var(--inset) 48px; display: grid; grid-template-columns: 1fr 1fr; gap: 0 52px; }
.aps-reference-item { min-width: 0; padding: 32px 0; border-top: 3px solid var(--brass); }
.aps-reference-item h3 { margin-bottom: 20px; font-size: 25px; }
.aps-reference-item p { margin-bottom: 14px; font-size: 17px; }
.aps-reference-item .aps-source-date { margin: 0; font-size: 16px; }
.aps-reference-item:first-child { grid-column: 1 / -1; display: grid; grid-template-columns: 1.1fr 1fr; gap: 18px 52px; padding-block: 36px; }
.aps-reference-item:first-child h3 { grid-row: 1 / 3; margin: 0; font-size: 35px; }
.aps-reference-item:first-child p { margin: 0; }
.aps-next-reading { padding: 18px var(--inset) 54px; }
.aps-next-reading .aps-reading-link { max-width: 100%; font-size: 21px; }
.aps-not-found { min-height: 65svh; padding: 54px var(--inset) 80px; }
.aps-not-found h1 { max-width: 19ch; }
.aps-not-found p { max-width: 52ch; margin: 30px 0; }

@media (min-width: 1600px) {
  :root { --inset: 70px; }
  .aps-opening h1 { font-size: clamp(88px, 5.3vw, 106px); }
  .aps-main-change { grid-template-columns: 180px minmax(0, 1fr); }
  .aps-day { font-size: 174px; }
  .aps-opening-change, .aps-period, .aps-continuity, .aps-inner-copy { grid-template-columns: minmax(0, 1fr) 280px; }
  .aps-home-photo { grid-template-columns: 900px minmax(300px, 1fr); }
  .aps-home-photo figcaption { padding-inline: 48px; }
}

@media (min-width: 761px) and (max-width: 1399px) {
  :root { --inset: 32px; }
  .aps-opening { padding-block: 36px 48px; }
  .aps-opening-change, .aps-period, .aps-continuity, .aps-inner-copy { grid-template-columns: minmax(0, 1fr) 210px; gap: 32px; }
  .aps-main-change { grid-template-columns: 120px minmax(0, 1fr); gap: 20px 24px; }
  .aps-day { font-size: 122px; }
  .aps-month { font-size: 16px; }
  .aps-home-photo { grid-template-columns: minmax(0, 2.5fr) minmax(230px, 1fr); }
  .aps-home-photo img { width: 100%; height: auto; aspect-ratio: 3/2; }
  .aps-home-photo figcaption { padding: 26px 24px; }
  .aps-home-photo h2 { font-size: 30px; }
  .aps-duty-columns { gap: 32px; }
  .aps-entry { grid-template-columns: 130px minmax(0, 1fr); gap: 20px; }
  .aps-entry time { font-size: 22px; }
}

@media (min-width: 761px) and (max-width: 1000px) {
  .aps-opening-change, .aps-period, .aps-continuity, .aps-inner-copy { grid-template-columns: minmax(0, 1fr); }
  .aps-term { position: static; max-width: 65ch; }
  .aps-main-change { grid-template-columns: 124px minmax(0, 1fr); }
  .aps-opening .aps-term { margin: 0; padding: 24px; }
  .aps-period .aps-term, .aps-inner-copy > .aps-term { margin: 0; transform: none; }
  .aps-home-photo { display: block; }
  .aps-home-photo figcaption { padding: 32px; }
  .aps-home-photo figcaption p { max-width: 65ch; }
  .aps-duty-columns, .aps-reference-list { grid-template-columns: 1fr; }
  .aps-duty-columns > div + div { border-left: 0; border-top: 3px solid var(--brass); padding: 32px 0 0; }
  .aps-reference-item:first-child { display: block; }
  .aps-reference-item:first-child h3 { margin-bottom: 20px; }
  .aps-reference-item:first-child p { margin-bottom: 14px; }
}

@media (max-width: 760px) {
  :root { --inset: 20px; --mast: 179px; }
  html { scroll-padding-top: 18px; }
  body { padding-right: 0; font-size: 18px; line-height: 1.65; }
  h1 { font-size: clamp(38px, 10.25vw, 62px); line-height: 1.16; letter-spacing: -.045em; }
  h2 { font-size: 34px; }
  h3 { font-size: 28px; }
  .aps-mast { padding: 21px var(--inset) 0; }
  .aps-name { gap: 12px; font-size: 22px; white-space: nowrap; }
  .aps-name::before { width: 35px; flex: 0 0 35px; background: linear-gradient(90deg, var(--brass) 0 3px, transparent 3px 32px, var(--brass) 32px), linear-gradient(transparent 5px, var(--brass) 5px 7px, transparent 7px); }
  .aps-dock { position: static; width: auto; padding: 19px 0 0; border-left: 0; background: transparent; display: block; }
  .aps-dock-title { display: none; }
  .aps-dock ol { grid-template-columns: 1fr 1fr; gap: 0 18px; }
  .aps-dock a { min-height: 53px; padding: 14px 0; display: flex; align-items: center; gap: 9px; font: 500 16px/1.4 var(--body); border-top: 1px solid var(--brass); }
  .aps-dock li:last-child a { border-bottom: 0; }
  .aps-chapter-index { margin: 0; display: flex; align-items: center; gap: 5px; font-size: 13px; }
  .aps-chapter-index i { font-size: 15px; }
  .aps-dock a:hover { transform: translateX(3px); }
  .aps-edition { margin-bottom: 19px; gap: 9px; font-size: 14px; }
  .aps-edition i { font-size: 16px; }
  .aps-opening { padding-top: 30px; padding-bottom: 36px; }
  .aps-opening h1 { margin-bottom: 28px; max-width: 22ch; line-height: 1.15; }
  .aps-opening h1 > span { display: inline; }
  .aps-opening-change { display: block; padding-top: 24px; border-top-width: 4px; }
  .aps-main-change { grid-template-columns: 88px minmax(0, 1fr); gap: 23px 20px; }
  .aps-main-change .aps-date { margin: 0; padding-bottom: 24px; grid-row: 1; }
  .aps-day { font-size: 82px; line-height: .95; }
  .aps-month { margin-top: 9px; font-size: 14px; line-height: 1.5; }
  .aps-main-change h2 { font-size: 27px; line-height: 1.3; }
  .aps-main-change > p:not(.aps-date) { grid-column: 1 / -1; }
  .aps-date { font-size: 17px; gap: 14px; }
  .aps-date::before { flex-basis: 60px; background: linear-gradient(90deg, var(--brass) 0 4px, transparent 4px 56px, var(--brass) 56px), linear-gradient(transparent 5px, var(--brass) 5px 7px, transparent 7px); }
  .aps-term { position: static; margin-top: 26px; padding: 23px 22px; font-size: 17px; }
  .aps-opening .aps-term { margin: 26px 0 0; padding: 22px; }
  .aps-home-photo { display: block; margin: 0 var(--inset); }
  .aps-home-photo img { width: 100%; height: auto; aspect-ratio: 350 / 235; object-fit: cover; }
  .aps-home-photo figcaption { padding: 29px 0 36px; border-top: 0; }
  .aps-home-photo h2 { margin-bottom: 22px; font-size: 34px; }
  .aps-home-photo .aps-photo-note { margin-top: 0; }
  .aps-running { padding-top: 45px; padding-bottom: 15px; }
  .aps-running > h2 { margin-bottom: 16px; }
  .aps-period { display: block; padding: 32px 0 40px; }
  .aps-period h3 { font-size: 31px; }
  .aps-period .aps-term { margin: 26px 0 0; transform: none; }
  .aps-reading-link { font-size: 17px; }
  .aps-responsibility { margin: 36px 0 46px; padding-top: 32px; padding-bottom: 34px; }
  .aps-responsibility > h2 { margin-bottom: 34px; font-size: 34px; }
  .aps-duty-columns { display: block; }
  .aps-duty-columns h3 { font-size: 30px; }
  .aps-duty-columns > div + div { margin-top: 30px; padding: 32px 0 0; border-left: 0; border-top: 3px solid var(--brass); }
  .aps-law-number { font-size: 71px; margin-bottom: 14px; }
  .aps-continuity { display: block; padding-bottom: 46px; }
  .aps-continuity h2 { margin-bottom: 25px; }
  .aps-source-end { padding-block: 30px 36px; }
  .aps-source-end ul { display: block; }
  .aps-source-end li { margin-bottom: 17px; }
  .aps-footer { display: block; padding-block: 32px; }
  .aps-footer nav { margin: 26px 0; gap: 25px; }
  .aps-page-heading { padding-block: 34px 36px; }
  .aps-page-heading h1 { font-size: clamp(38px, 10.25vw, 58px); }
  .aps-standfirst { margin-top: 24px; font-size: 20px; }
  .aps-inner-section { padding-block: 35px 28px; }
  .aps-inner-section > h2 { margin-bottom: 27px; font-size: 32px; }
  .aps-inner-copy { display: block; }
  .aps-inner-copy > .aps-term { margin: 28px 0 0; }
  .aps-inner-photo { margin-top: 30px; }
  .aps-inner-photo img { aspect-ratio: 350/210; }
  .aps-inner-photo figcaption { margin-left: 20px; padding: 21px 20px; font-size: 16px; }
  .aps-entry { display: block; margin-bottom: 32px; }
  .aps-entry time { margin-bottom: 13px; padding: 0 0 10px; border-bottom: 3px solid var(--brass); font-size: 24px; }
  .aps-entry h3 { font-size: 28px; }
  .aps-reference-list { display: block; padding-block: 8px 28px; }
  .aps-reference-item { padding-block: 27px; }
  .aps-reference-item:first-child { display: block; padding-block: 27px; }
  .aps-reference-item:first-child h3 { font-size: 29px; margin-bottom: 20px; }
  .aps-reference-item:first-child p { margin-bottom: 14px; }
  .aps-reference-item h3 { font-size: 25px; }
  .aps-next-reading { padding-block: 12px 40px; }
  .aps-next-reading .aps-reading-link { font-size: 18px; }
  .aps-not-found { padding-block: 36px 60px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}