/* q4548 :: ISEE 2019 reference edition
   Hand written for this edition. Palette, marks and measures are unique to this site. */

:root {
  --q4548-paper: #f5efe2;
  --q4548-paper-2: #ebe2d0;
  --q4548-paper-3: #ded1b8;
  --q4548-chalk: #fbf7ee;
  --q4548-ink: #1b2422;
  --q4548-ink-soft: #4e5c57;
  --q4548-water: #1d4d4e;
  --q4548-water-2: #2f6f6d;
  --q4548-clay: #a34f2e;
  --q4548-gold: #b3842d;
  --q4548-rule: #cbbfa9;
  --q4548-rule-2: #a8997e;
  --q4548-focus: #7a2f16;
  --q4548-shadow: 7px 7px 0 var(--q4548-paper-3);
  --q4548-serif: "Unna", Georgia, "Times New Roman", serif;
  --q4548-sans: "Average Sans", "Segoe UI", Arial, sans-serif;
  --q4548-wrap: 1200px;
  --q4548-gutter: clamp(18px, 2.6vw, 44px);
  --q4548-rail: 290px;
  --q4548-topbar: 58px;
  --q4548-step-0: 0.6875rem;
  --q4548-step-1: 0.8125rem;
  --q4548-step-2: 0.9375rem;
  --q4548-step-3: 1.0625rem;
  --q4548-step-4: 1.25rem;
  --q4548-step-5: clamp(1.5rem, 3vw, 2rem);
  --q4548-step-6: clamp(2rem, 5vw, 3.1rem);
  --q4548-step-7: clamp(2.7rem, 7vw, 5rem);
}

*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  margin: 0;
  font-family: var(--q4548-sans);
  font-size: var(--q4548-step-3);
  line-height: 1.66;
  color: var(--q4548-ink);
  background: var(--q4548-paper);
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--q4548-serif);
  font-weight: 400;
  line-height: 1.04;
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
}

h2 { font-size: var(--q4548-step-6); }
h3 { font-size: var(--q4548-step-5); }
h4 { font-size: var(--q4548-step-4); }

p { margin: 0 0 1em; }
ul, ol { margin: 0 0 1em; padding-left: 1.15em; }
li + li { margin-top: 0.35em; }

a {
  color: var(--q4548-water);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}
a:hover { color: var(--q4548-clay); }

:focus-visible {
  outline: 3px solid var(--q4548-focus);
  outline-offset: 3px;
}

::selection {
  background: var(--q4548-water);
  color: var(--q4548-chalk);
}

svg { max-width: 100%; }
address { font-style: normal; }

.q4548-wrap {
  width: 100%;
  max-width: var(--q4548-wrap);
  margin-inline: auto;
  padding-inline: var(--q4548-gutter);
}

.q4548-skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 200;
  background: var(--q4548-ink);
  color: var(--q4548-chalk);
  padding: 12px 18px;
}
.q4548-skip:focus { left: 12px; top: 12px; }

/* ---------- fixed index rail and content canvas ---------- */

.q4548-frame { min-height: 100vh; }

.q4548-indexrail {
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 50;
  width: var(--q4548-rail);
  display: flex;
  flex-direction: column;
  background: var(--q4548-water);
  color: var(--q4548-chalk);
  border-right: 1px solid var(--q4548-water-2);
}

.q4548-railhead {
  position: relative;
  padding: 26px 24px 20px;
  border-bottom: 1px solid rgba(251, 247, 238, 0.22);
}

.q4548-mark {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: inherit;
  text-decoration: none;
}
.q4548-mark__num {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border: 2px solid var(--q4548-chalk);
  font-family: var(--q4548-serif);
  font-size: 1.5rem;
  line-height: 1;
}
.q4548-mark__word { display: flex; flex-direction: column; line-height: 1; }
.q4548-mark__word strong {
  font-family: var(--q4548-serif);
  font-size: 1.45rem;
  font-weight: 400;
  letter-spacing: 0.05em;
}
.q4548-mark__word span {
  margin-top: 4px;
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--q4548-paper-2);
}

.q4548-railhead__kicker {
  margin: 18px 0 4px;
  font-size: 0.64rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--q4548-paper-2);
}
.q4548-railhead__dates {
  margin: 0;
  font-family: var(--q4548-serif);
  font-size: 1.02rem;
  line-height: 1.35;
  color: var(--q4548-chalk);
}
.q4548-railclose { display: none; }

.q4548-railscroll {
  flex: 1 1 auto;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 10px 24px 18px;
}
.q4548-railnav { width: 100%; }

.q4548-navlist { list-style: none; margin: 0; padding: 0; }
.q4548-navlist__item { border-bottom: 1px solid rgba(251, 247, 238, 0.16); }
.q4548-navlist__item:last-child { border-bottom: 0; }
.q4548-navlink {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 12px 0;
  border: 0;
  background: none;
  color: var(--q4548-chalk);
  font: inherit;
  font-size: 0.76rem;
  letter-spacing: 0.07em;
  line-height: 1.3;
  text-align: left;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
}
.q4548-navlink:hover { color: var(--q4548-paper-2); }
.q4548-navlink__num {
  flex: 0 0 22px;
  font-family: var(--q4548-serif);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--q4548-paper-2);
}
.q4548-navlink__label { flex: 1 1 auto; }
.q4548-navlink__mark { position: relative; flex: 0 0 auto; width: 9px; height: 9px; }
.q4548-navlink__mark::before,
.q4548-navlink__mark::after {
  content: "";
  position: absolute;
  background: currentColor;
  transition: transform 0.2s ease;
}
.q4548-navlink__mark::before { left: 4px; top: 0; width: 1px; height: 9px; }
.q4548-navlink__mark::after { left: 0; top: 4px; width: 9px; height: 1px; }
.q4548-navlink[aria-expanded="true"] .q4548-navlink__mark::before { transform: rotate(90deg); }
.q4548-navlink--here,
.q4548-navlist__item--trail > .q4548-navlink { color: var(--q4548-chalk); }
.q4548-navlist__item--trail > .q4548-navlink { box-shadow: inset 3px 0 0 var(--q4548-paper-2); padding-left: 9px; }
.q4548-navlink--here { box-shadow: inset 3px 0 0 var(--q4548-paper-2); padding-left: 9px; }

.q4548-droplet { list-style: none; display: none; margin: 0; padding: 0 0 10px 32px; }
.q4548-navlink[aria-expanded="true"] + .q4548-droplet { display: block; }
.q4548-droplet li { margin: 0; }
.q4548-droplet__link {
  display: block;
  padding: 7px 0;
  border-bottom: 1px solid rgba(251, 247, 238, 0.09);
  color: var(--q4548-paper-2);
  font-size: 0.78rem;
  line-height: 1.35;
  text-decoration: none;
}
.q4548-droplet li:last-child .q4548-droplet__link { border-bottom: 0; }
.q4548-droplet__link:hover { color: var(--q4548-chalk); }
.q4548-droplet__link--here { color: var(--q4548-chalk); }
.q4548-droplet__link--here::before { content: "\2192"; margin-right: 6px; color: var(--q4548-paper-2); }

.q4548-railfoot {
  flex: 0 0 auto;
  padding: 16px 24px 22px;
  border-top: 1px solid rgba(251, 247, 238, 0.22);
}
.q4548-railsearch {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 10px 12px;
  border: 1px solid rgba(251, 247, 238, 0.45);
  background: none;
  color: var(--q4548-chalk);
  font: inherit;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
}
.q4548-railsearch:hover { background: rgba(251, 247, 238, 0.1); }
.q4548-railsearch svg { width: 14px; height: 14px; }
.q4548-railcontact {
  display: block;
  margin-top: 12px;
  color: var(--q4548-paper-2);
  font-size: 0.78rem;
}
.q4548-railcontact:hover { color: var(--q4548-chalk); }
.q4548-railedition {
  margin: 12px 0 0;
  font-size: 0.64rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(251, 247, 238, 0.62);
}

.q4548-canvas { margin-left: var(--q4548-rail); min-height: 100vh; }
.q4548-canvastop {
  position: sticky;
  top: 0;
  z-index: 35;
  background: var(--q4548-paper);
  border-bottom: 1px solid var(--q4548-rule);
}
.q4548-canvastop__inner {
  display: flex;
  align-items: center;
  gap: 18px;
  width: 100%;
  max-width: var(--q4548-wrap);
  min-height: var(--q4548-topbar);
  margin-inline: auto;
  padding: 8px var(--q4548-gutter);
}
.q4548-canvastop__mark {
  display: none;
  color: var(--q4548-ink);
  font-family: var(--q4548-serif);
  font-size: 1.15rem;
  letter-spacing: 0.05em;
  text-decoration: none;
}
.q4548-canvastop__mark span { color: var(--q4548-clay); }
.q4548-canvastop__label {
  margin: 0;
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--q4548-clay);
}
.q4548-canvastop__date {
  margin: 0 auto 0 0;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--q4548-ink-soft);
}
.q4548-canvastop__tools { display: flex; align-items: center; gap: 8px; margin-left: auto; }

.q4548-tool {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 11px;
  border: 1px solid var(--q4548-rule-2);
  background: transparent;
  color: var(--q4548-ink);
  font: inherit;
  font-size: 0.68rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  cursor: pointer;
}
.q4548-tool:hover { background: var(--q4548-paper-2); color: var(--q4548-clay); }
.q4548-tool svg { width: 14px; height: 14px; }
.q4548-tool--menu { display: none; }
.q4548-tool__bars,
.q4548-tool__bars::before,
.q4548-tool__bars::after {
  display: block;
  width: 14px;
  height: 1px;
  background: currentColor;
  content: "";
}
.q4548-tool__bars { position: relative; }
.q4548-tool__bars::before { position: absolute; top: -5px; }
.q4548-tool__bars::after { position: absolute; top: 5px; }

.q4548-scrim {
  position: fixed;
  inset: 0;
  z-index: 45;
  background: rgba(27, 36, 34, 0.55);
}
.q4548-scrim[hidden] { display: none; }

/* ---------- home overture ---------- */

.q4548-overture { padding-block: clamp(44px, 7vw, 88px) clamp(28px, 4vw, 48px); }
.q4548-overture__lattice {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.8fr);
  gap: clamp(30px, 6vw, 76px);
  align-items: start;
}
.q4548-kicker {
  margin: 0 0 14px;
  font-size: var(--q4548-step-0);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--q4548-clay);
  font-weight: 700;
}
.q4548-overture h1 {
  max-width: 15ch;
  font-size: var(--q4548-step-7);
  margin: 0;
}
.q4548-overture__theme {
  margin: 0.18em 0 0.55em;
  font-family: var(--q4548-serif);
  font-style: italic;
  font-size: clamp(1.55rem, 4vw, 2.7rem);
  line-height: 1.04;
  color: var(--q4548-water);
}
.q4548-overture__lede {
  max-width: 58ch;
  font-size: clamp(1.04rem, 1.8vw, 1.25rem);
  color: var(--q4548-ink-soft);
}
.q4548-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.q4548-action {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 17px;
  border: 1px solid var(--q4548-ink);
  font-size: var(--q4548-step-1);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--q4548-ink);
  background: transparent;
  cursor: pointer;
}
.q4548-action::after { content: "\2192"; font-size: 1.05em; line-height: 1; }
.q4548-action:hover { background: var(--q4548-ink); color: var(--q4548-paper); }
.q4548-action--solid {
  background: var(--q4548-water);
  border-color: var(--q4548-water);
  color: var(--q4548-chalk);
}
.q4548-action--solid:hover { background: var(--q4548-clay); border-color: var(--q4548-clay); color: var(--q4548-chalk); }

.q4548-plate {
  position: relative;
  border: 1px solid var(--q4548-rule-2);
  background: var(--q4548-chalk);
  padding: clamp(22px, 3vw, 34px);
  box-shadow: var(--q4548-shadow);
}
.q4548-plate::before {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1px solid var(--q4548-rule);
  pointer-events: none;
}
.q4548-plate__label {
  margin: 0 0 10px;
  font-size: var(--q4548-step-0);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--q4548-clay);
}
.q4548-plate__dates {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  font-family: var(--q4548-serif);
  color: var(--q4548-water);
  line-height: 0.9;
}
.q4548-plate__dates strong { font-size: clamp(3rem, 8vw, 5rem); font-weight: 400; }
.q4548-plate__dates span { font-size: clamp(1.1rem, 2.5vw, 1.5rem); padding-bottom: 8px; }
.q4548-plate__month {
  margin: 6px 0 0;
  font-size: var(--q4548-step-1);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--q4548-ink-soft);
}
.q4548-plate__rows { margin: 18px 0 0; display: grid; gap: 8px; }
.q4548-plate__row {
  display: grid;
  grid-template-columns: 86px 1fr;
  gap: 10px;
  padding-top: 8px;
  border-top: 1px solid var(--q4548-rule);
  font-size: var(--q4548-step-1);
}
.q4548-plate__row dt {
  font-size: var(--q4548-step-0);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--q4548-clay);
}
.q4548-plate__row dd { margin: 0; }
.q4548-plate__drawing { margin-top: 20px; display: block; color: var(--q4548-water); }

/* ---------- measures ---------- */

.q4548-measures {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-block: 1px solid var(--q4548-rule-2);
}
.q4548-measure { padding: 22px 22px 24px; border-left: 1px solid var(--q4548-rule); }
.q4548-measure:first-child { border-left: 0; }
.q4548-measure__num {
  display: block;
  font-family: var(--q4548-serif);
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  line-height: 1;
  color: var(--q4548-water);
}
.q4548-measure__label {
  display: block;
  margin-top: 6px;
  font-size: var(--q4548-step-0);
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--q4548-ink-soft);
}
.q4548-measure__note {
  margin: 10px 0 0;
  font-size: var(--q4548-step-1);
  color: var(--q4548-ink-soft);
}

/* ---------- cover index ---------- */

.q4548-coverindex {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  border-bottom: 1px solid var(--q4548-rule-2);
}
.q4548-coverindex a {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 14px 16px;
  border-left: 1px solid var(--q4548-rule);
  text-decoration: none;
}
.q4548-coverindex a:first-child { border-left: 0; }
.q4548-coverindex a:hover { background: var(--q4548-chalk); }
.q4548-coverindex span:first-child {
  font-family: var(--q4548-serif);
  font-size: 0.82rem;
  color: var(--q4548-clay);
}
.q4548-coverindex span:last-child {
  font-size: 0.76rem;
  line-height: 1.3;
  color: var(--q4548-ink);
}

/* ---------- chapters and content ---------- */

.q4548-chapter {
  padding-block: clamp(36px, 6vw, 68px);
  border-top: 1px solid var(--q4548-rule);
}
.q4548-chapter:first-child { border-top: 0; padding-top: clamp(24px, 4vw, 36px); }
.q4548-chapter__head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 24px;
}
.q4548-chapter__index {
  font-family: var(--q4548-serif);
  font-size: var(--q4548-step-2);
  letter-spacing: 0.1em;
  color: var(--q4548-clay);
}
.q4548-chapter__head h2 { margin: 0; }
.q4548-chapter__intro { max-width: 68ch; color: var(--q4548-ink-soft); }

.q4548-sheet p,
.q4548-sheet li { max-width: 74ch; }
.q4548-sheet h2 { font-size: var(--q4548-step-5); margin-top: 1.7em; }
.q4548-sheet h3 { font-size: var(--q4548-step-4); margin-top: 1.5em; }
.q4548-sheet > .q4548-chapter:first-child h2 { margin-top: 0; }
.q4548-sheet strong { color: var(--q4548-water); }

.q4548-lede {
  font-size: clamp(1.05rem, 1.9vw, 1.2rem);
  line-height: 1.55;
  color: var(--q4548-ink-soft);
  max-width: 64ch;
}

.q4548-margin-note {
  border-left: 4px solid var(--q4548-clay);
  background: var(--q4548-chalk);
  padding: 16px 18px;
  margin-block: 22px;
  font-size: var(--q4548-step-2);
  max-width: 74ch;
}
.q4548-margin-note p:last-child { margin-bottom: 0; }

.q4548-split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  border: 1px solid var(--q4548-rule-2);
  margin-block: 24px;
  background: var(--q4548-chalk);
}
.q4548-split > * { padding: clamp(20px, 3vw, 30px); }
.q4548-split > * + * { border-left: 1px solid var(--q4548-rule); }
.q4548-split h3 { margin-top: 0; }

/* ---------- currents, voices, tiles ---------- */

.q4548-currents {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border: 1px solid var(--q4548-rule-2);
  background: var(--q4548-chalk);
}
.q4548-current { padding: clamp(22px, 3vw, 34px); border-left: 1px solid var(--q4548-rule); }
.q4548-current:first-child { border-left: 0; }
.q4548-current__glyph { display: block; width: 34px; height: 34px; color: var(--q4548-water); margin-bottom: 18px; }
.q4548-current h3 { margin: 0 0 8px; }
.q4548-current p { margin: 0; font-size: var(--q4548-step-2); color: var(--q4548-ink-soft); }

.q4548-voices {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}
.q4548-voice { border-top: 3px solid var(--q4548-clay); padding-top: 16px; }
.q4548-voice__mono {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  background: var(--q4548-water);
  color: var(--q4548-chalk);
  font-family: var(--q4548-serif);
  font-size: 1.35rem;
  margin-bottom: 14px;
}
.q4548-voice h3 { font-size: var(--q4548-step-4); margin: 0 0 4px; }
.q4548-voice__role { font-size: var(--q4548-step-1); color: var(--q4548-clay); margin: 0 0 8px; }
.q4548-voice p { font-size: var(--q4548-step-2); color: var(--q4548-ink-soft); }

.q4548-tiles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 0;
  border: 1px solid var(--q4548-rule-2);
  background: var(--q4548-chalk);
  margin-block: 24px;
}
.q4548-tile { padding: 22px; border-left: 1px solid var(--q4548-rule); }
.q4548-tile:first-child { border-left: 0; }
.q4548-tile h3 { font-size: var(--q4548-step-4); margin: 0 0 6px; }
.q4548-tile p { margin: 0; font-size: var(--q4548-step-2); }

/* ---------- ribbon timeline ---------- */

.q4548-ribbon { list-style: none; margin: 0; padding: 0 0 0 30px; border-left: 2px solid var(--q4548-water); }
.q4548-ribbon li { position: relative; margin: 0; padding: 0 0 32px 0; }
.q4548-ribbon li:last-child { padding-bottom: 0; }
.q4548-ribbon li::before {
  content: "";
  position: absolute;
  left: -37px;
  top: 8px;
  width: 12px;
  height: 12px;
  border: 2px solid var(--q4548-water);
  background: var(--q4548-paper);
  border-radius: 50%;
}
.q4548-ribbon__when {
  display: block;
  font-size: var(--q4548-step-0);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--q4548-clay);
}
.q4548-ribbon__what { display: block; font-family: var(--q4548-serif); font-size: var(--q4548-step-4); margin: 2px 0 4px; }
.q4548-ribbon__detail { display: block; font-size: var(--q4548-step-2); color: var(--q4548-ink-soft); }

/* ---------- drawer ---------- */

.q4548-drawer {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border: 1px solid var(--q4548-rule-2);
  background: var(--q4548-chalk);
}
.q4548-drawer__col { padding: clamp(22px, 4vw, 38px); }
.q4548-drawer__col + .q4548-drawer__col { border-left: 1px solid var(--q4548-rule); }
.q4548-drawer__col h3 { margin-top: 0; }
.q4548-drawer__list { list-style: none; margin: 0; padding: 0; }
.q4548-drawer__list li { margin: 0; border-top: 1px solid var(--q4548-rule); }
.q4548-drawer__list li:first-child { border-top: 0; }
.q4548-drawer__list a {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  text-decoration: none;
}
.q4548-drawer__list a span:last-child { color: var(--q4548-clay); }

/* ---------- inner page spine ---------- */

.q4548-spine {
  padding-block: clamp(32px, 6vw, 60px) clamp(22px, 4vw, 38px);
  border-bottom: 1px solid var(--q4548-rule-2);
}
.q4548-spine__lattice {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 320px);
  gap: clamp(28px, 5vw, 64px);
  align-items: start;
}
.q4548-trailwrap { margin-bottom: 18px; }
.q4548-trail {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  font-size: var(--q4548-step-0);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--q4548-ink-soft);
}
.q4548-trail li { margin: 0; }
.q4548-trail li + li::before { content: "/"; margin-right: 6px; color: var(--q4548-rule-2); }
.q4548-trail a { color: var(--q4548-ink-soft); text-decoration: none; }
.q4548-trail a:hover { color: var(--q4548-clay); text-decoration: underline; }
.q4548-spine h1 { max-width: 18ch; margin: 0 0 16px; }
.q4548-standfirst {
  max-width: 62ch;
  font-size: clamp(1.06rem, 1.9vw, 1.28rem);
  line-height: 1.55;
  color: var(--q4548-ink-soft);
}

.q4548-ledger {
  border: 1px solid var(--q4548-rule-2);
  background: var(--q4548-chalk);
  padding: 20px 22px;
  position: sticky;
  top: 82px;
}
.q4548-ledger__title {
  margin: 0 0 10px;
  font-size: var(--q4548-step-0);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--q4548-clay);
}
.q4548-ledger dl { margin: 0; }
.q4548-ledger dt {
  margin-top: 12px;
  font-size: var(--q4548-step-0);
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--q4548-water);
}
.q4548-ledger dt:first-child { margin-top: 0; }
.q4548-ledger dd { margin: 3px 0 0; font-size: var(--q4548-step-2); line-height: 1.45; }

.q4548-body { padding-block: clamp(28px, 5vw, 52px); }

/* ---------- tables ---------- */

.q4548-tablewrap {
  margin-block: 24px;
  border: 1px solid var(--q4548-rule-2);
  background: var(--q4548-chalk);
  overflow-x: auto;
}
.q4548-datatable { width: 100%; border-collapse: collapse; font-size: var(--q4548-step-2); }
.q4548-datatable caption {
  caption-side: top;
  text-align: left;
  padding: 14px 16px;
  font-family: var(--q4548-serif);
  font-size: var(--q4548-step-4);
  border-bottom: 1px solid var(--q4548-rule);
}
.q4548-datatable th,
.q4548-datatable td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--q4548-rule);
  text-align: left;
  vertical-align: top;
}
.q4548-datatable th {
  font-size: var(--q4548-step-0);
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--q4548-water);
  background: var(--q4548-paper-2);
}
.q4548-datatable tr:last-child td { border-bottom: 0; }
.q4548-datatable tbody tr:hover { background: var(--q4548-paper); }
.q4548-datatable td strong { color: var(--q4548-water); }
.q4548-datatable .q4548-num { white-space: nowrap; font-variant-numeric: tabular-nums; }

/* ---------- reference shelf ---------- */

.q4548-refs {
  margin-block: 36px 12px;
  border-top: 2px solid var(--q4548-water);
  background: var(--q4548-chalk);
  padding: 20px 22px;
}
.q4548-refs__label {
  margin: 0 0 10px;
  font-size: var(--q4548-step-0);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--q4548-clay);
}
.q4548-refs ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 8px 24px;
}
.q4548-refs li { margin: 0; }
.q4548-refs a { display: inline-flex; align-items: baseline; gap: 6px; }
.q4548-refs a::after { content: "\2197"; font-size: 0.82em; color: var(--q4548-clay); }
.q4548-refs__note { margin: 12px 0 0; font-size: var(--q4548-step-1); color: var(--q4548-ink-soft); }

/* ---------- pager ---------- */

.q4548-pager {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 14px;
  border-top: 1px solid var(--q4548-rule-2);
  margin-top: 42px;
  padding-top: 20px;
}
.q4548-pager a {
  display: inline-flex;
  flex-direction: column;
  gap: 2px;
  text-decoration: none;
  max-width: 46%;
}
.q4548-pager span {
  font-size: var(--q4548-step-0);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--q4548-clay);
}
.q4548-pager strong { font-family: var(--q4548-serif); font-size: var(--q4548-step-4); font-weight: 400; }
.q4548-pager a:last-child { text-align: right; margin-left: auto; }

/* ---------- forms ---------- */

.q4548-form { display: grid; gap: 14px; max-width: 660px; margin-block: 22px; }
.q4548-field { display: grid; gap: 6px; }
.q4548-field label {
  font-size: var(--q4548-step-0);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--q4548-water);
}
.q4548-field input,
.q4548-field select,
.q4548-field textarea {
  width: 100%;
  font: inherit;
  font-size: var(--q4548-step-3);
  padding: 10px 12px;
  border: 1px solid var(--q4548-rule-2);
  background: var(--q4548-chalk);
  color: var(--q4548-ink);
  border-radius: 0;
}
.q4548-field textarea { min-height: 148px; resize: vertical; }
.q4548-form__note { font-size: var(--q4548-step-1); color: var(--q4548-ink-soft); max-width: 62ch; }
.q4548-status {
  border-left: 4px solid var(--q4548-gold);
  background: var(--q4548-chalk);
  padding: 12px 14px;
  font-size: var(--q4548-step-2);
}
.q4548-status[hidden] { display: none; }

/* ---------- accordion ---------- */

.q4548-accordion { border-top: 1px solid var(--q4548-rule-2); margin-block: 22px; max-width: 78ch; }
.q4548-accordion details { border-bottom: 1px solid var(--q4548-rule-2); }
.q4548-accordion summary {
  position: relative;
  padding: 15px 36px 15px 0;
  font-family: var(--q4548-serif);
  font-size: var(--q4548-step-4);
  cursor: pointer;
  list-style: none;
}
.q4548-accordion summary::-webkit-details-marker { display: none; }
.q4548-accordion summary::after {
  content: "+";
  position: absolute;
  right: 6px;
  top: 10px;
  font-family: var(--q4548-sans);
  font-size: 1.35rem;
  color: var(--q4548-clay);
  transition: transform 0.2s ease;
}
.q4548-accordion details[open] summary::after { transform: rotate(45deg); }
.q4548-accordion__body { padding: 0 0 16px; }
.q4548-accordion__body p:last-child { margin-bottom: 0; }

/* ---------- filter ---------- */

.q4548-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: end;
  margin-block: 20px;
  padding: 16px 18px;
  border: 1px solid var(--q4548-rule-2);
  background: var(--q4548-chalk);
  max-width: 760px;
}
.q4548-filter .q4548-field { flex: 1 1 260px; }
.q4548-filter__count {
  font-size: var(--q4548-step-0);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--q4548-ink-soft);
}

/* ---------- search dialog ---------- */

.q4548-search {
  width: min(720px, 92vw);
  max-height: 84vh;
  padding: 0;
  border: 1px solid var(--q4548-rule-2);
  background: var(--q4548-paper);
  color: var(--q4548-ink);
  box-shadow: var(--q4548-shadow);
}
.q4548-search::backdrop { background: rgba(27, 36, 34, 0.58); }
.q4548-search__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  background: var(--q4548-water);
  color: var(--q4548-chalk);
}
.q4548-search__head h2 { margin: 0; font-size: var(--q4548-step-4); }
.q4548-search__close {
  border: 1px solid rgba(251, 247, 238, 0.55);
  background: transparent;
  color: var(--q4548-chalk);
  font: inherit;
  font-size: var(--q4548-step-0);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 6px 10px;
  cursor: pointer;
}
.q4548-search__close:hover { background: rgba(251, 247, 238, 0.12); }
.q4548-search__body { padding: 20px; }
.q4548-search__label {
  display: block;
  margin-bottom: 6px;
  font-size: var(--q4548-step-0);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--q4548-water);
}
.q4548-search__input {
  width: 100%;
  font: inherit;
  font-size: var(--q4548-step-4);
  padding: 10px 12px;
  border: 1px solid var(--q4548-rule-2);
  background: var(--q4548-chalk);
  color: var(--q4548-ink);
  border-radius: 0;
}
.q4548-search__hint { margin: 8px 0 0; font-size: var(--q4548-step-1); color: var(--q4548-ink-soft); }
.q4548-results { list-style: none; margin: 16px 0 0; padding: 0; max-height: 46vh; overflow: auto; }
.q4548-results li { margin: 0; }
.q4548-results a {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--q4548-rule);
  text-decoration: none;
}
.q4548-results a:hover { background: var(--q4548-paper-2); }
.q4548-results__title { font-family: var(--q4548-serif); font-size: var(--q4548-step-4); }
.q4548-results__kind { font-size: var(--q4548-step-0); letter-spacing: 0.1em; text-transform: uppercase; color: var(--q4548-clay); }
.q4548-results__empty { padding: 14px 12px; color: var(--q4548-ink-soft); }

/* ---------- colophon ---------- */

.q4548-colophon {
  margin-top: clamp(36px, 6vw, 72px);
  background: var(--q4548-water);
  color: var(--q4548-chalk);
}
.q4548-colophon a { color: var(--q4548-chalk); text-decoration-color: rgba(251, 247, 238, 0.6); }
.q4548-colophon a:hover { color: var(--q4548-paper-2); }
.q4548-colophon__grid {
  display: grid;
  grid-template-columns: 1.35fr 0.8fr 1fr;
  gap: 32px;
  padding-block: clamp(34px, 5vw, 58px);
}
.q4548-colophon__kicker {
  margin: 0 0 8px;
  font-size: var(--q4548-step-0);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--q4548-paper-2);
}
.q4548-colophon__title {
  margin: 0 0 10px;
  font-family: var(--q4548-serif);
  font-size: clamp(1.5rem, 3vw, 2rem);
  line-height: 1.1;
}
.q4548-colophon__note { max-width: 44ch; font-size: var(--q4548-step-2); color: rgba(251, 247, 238, 0.8); }
.q4548-colophon__label {
  margin: 0 0 10px;
  font-size: var(--q4548-step-0);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--q4548-paper-2);
}
.q4548-colophon__nav ul { list-style: none; margin: 0; padding: 0; }
.q4548-colophon__nav li { margin: 0 0 7px; }
.q4548-colophon__nav a { text-decoration: none; font-size: var(--q4548-step-2); }
.q4548-colophon__nav a:hover { text-decoration: underline; }
.q4548-colophon__secretariat address { margin-bottom: 10px; font-size: var(--q4548-step-2); line-height: 1.6; }
.q4548-colophon__secretariat p { margin: 0; font-size: var(--q4548-step-2); }
.q4548-colophon__base {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px 24px;
  padding-block: 16px;
  border-top: 1px solid rgba(251, 247, 238, 0.24);
  font-size: var(--q4548-step-1);
}
.q4548-colophon__base p { margin: 0; }

/* ---------- responsive ---------- */

@media (max-width: 1120px) {
  .q4548-indexrail {
    width: min(370px, 88vw);
    visibility: hidden;
    transform: translateX(-105%);
    transition: transform 0.24s ease, visibility 0.24s ease;
  }
  body.q4548-nav-open .q4548-indexrail { visibility: visible; transform: none; }
  body.q4548-nav-open { overflow: hidden; }
  .q4548-canvas { margin-left: 0; }
  .q4548-canvastop__mark { display: inline-flex; align-items: baseline; gap: 4px; }
  .q4548-canvastop__label { display: none; }
  .q4548-canvastop__date { display: none; }
  .q4548-tool--menu { display: inline-flex; }
  .q4548-railclose {
    position: absolute;
    top: 18px;
    right: 18px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 9px;
    border: 1px solid rgba(251, 247, 238, 0.45);
    background: none;
    color: var(--q4548-chalk);
    font: inherit;
    font-size: 0.64rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    cursor: pointer;
  }
  .q4548-railclose:hover { background: rgba(251, 247, 238, 0.1); }
  .q4548-railclose span { font-size: 1rem; line-height: 1; }
  .q4548-overture__lattice { grid-template-columns: 1fr; }
  .q4548-spine__lattice { grid-template-columns: 1fr; }
  .q4548-ledger { position: static; max-width: 560px; }
}

@media (max-width: 860px) {
  .q4548-tiles--trio { grid-template-columns: 1fr; }
  .q4548-coverindex { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .q4548-coverindex a:nth-child(odd) { border-left: 0; }
  .q4548-coverindex a:nth-child(n + 3) { border-top: 1px solid var(--q4548-rule); }
  .q4548-measures { grid-template-columns: 1fr; }
  .q4548-measure { border-left: 0; border-top: 1px solid var(--q4548-rule); }
  .q4548-measure:first-child { border-top: 0; }
  .q4548-currents { grid-template-columns: 1fr; }
  .q4548-current { border-left: 0; border-top: 1px solid var(--q4548-rule); }
  .q4548-current:first-child { border-top: 0; }
  .q4548-voices { grid-template-columns: 1fr; gap: 28px; }
  .q4548-drawer { grid-template-columns: 1fr; }
  .q4548-drawer__col + .q4548-drawer__col { border-left: 0; border-top: 1px solid var(--q4548-rule); }
  .q4548-split { grid-template-columns: 1fr; }
  .q4548-split > * + * { border-left: 0; border-top: 1px solid var(--q4548-rule); }
  .q4548-colophon__grid { grid-template-columns: 1fr; gap: 26px; }
}

@media (max-width: 720px) {
  .q4548-datatable thead { display: none; }
  .q4548-datatable,
  .q4548-datatable tbody,
  .q4548-datatable tr,
  .q4548-datatable td { display: block; width: 100%; }
  .q4548-datatable tr { border-bottom: 1px solid var(--q4548-rule-2); padding: 6px 0; }
  .q4548-datatable tr:last-child { border-bottom: 0; }
  .q4548-datatable td {
    display: grid;
    grid-template-columns: minmax(110px, 40%) 1fr;
    gap: 10px;
    border: 0;
    padding: 6px 14px;
  }
  .q4548-datatable td::before {
    content: attr(data-label);
    font-size: var(--q4548-step-0);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--q4548-clay);
  }
  .q4548-tablewrap { overflow-x: visible; }
}

@media (max-width: 620px) {
  .q4548-mark__num { width: 46px; height: 46px; font-size: 1.3rem; }
  .q4548-mark__word strong { font-size: 1.3rem; }
  .q4548-canvastop__inner { gap: 10px; padding-inline: 14px; }
  .q4548-tool { padding: 8px 9px; }
  .q4548-coverindex { grid-template-columns: 1fr; }
  .q4548-coverindex a { border-left: 0; border-top: 1px solid var(--q4548-rule); }
  .q4548-coverindex a:first-child { border-top: 0; }
  .q4548-pager a { max-width: 100%; }
  .q4548-pager a:last-child { text-align: left; margin-left: 0; }
  .q4548-refs ul { grid-template-columns: 1fr; }
  .q4548-filter { flex-direction: column; align-items: stretch; }
  .q4548-filter .q4548-field { flex: 0 0 auto; }
  .q4548-tiles { grid-template-columns: 1fr; }
  .q4548-tile { border-left: 0; border-top: 1px solid var(--q4548-rule); }
  .q4548-tile:first-child { border-top: 0; }
  .q4548-datatable caption { font-size: var(--q4548-step-3); }
}

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

@media print {
  .q4548-indexrail,
  .q4548-canvastop,
  .q4548-scrim,
  .q4548-colophon,
  .q4548-refs,
  .q4548-pager,
  .q4548-coverindex,
  .q4548-tool,
  .q4548-search,
  .q4548-skip,
  .q4548-actions { display: none !important; }
  body { background: #fff; color: #000; font-size: 11pt; }
  .q4548-canvas { margin-left: 0; }
  .q4548-wrap { max-width: none; padding: 0; }
  .q4548-spine { padding: 0 0 12pt; }
  .q4548-ledger { position: static; box-shadow: none; }
  .q4548-chapter { break-inside: avoid; }
  a { color: #000; text-decoration: none; }
}