/* Black screening field for the work; navy fields for reading. Orange marks focus, the current section, Forthcoming and pending states, and the audible gap in diagrams. */
:root {
  --black: #000000;
  --navy: #001F54;
  --white: #FFFFFF;
  --gray: #B0B0B0;
  --rule: #2A3140;
  --rule-field: rgba(255, 255, 255, 0.18);
  --orange: #FF6F00;
  --font-heading: 'Avenir Next', Avenir, system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-subtitle: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-body: Arial, 'Helvetica Neue', Helvetica, sans-serif;
  --font-reading: 'Iowan Old Style', Charter, 'Bitstream Charter', 'Palatino Linotype', Palatino, Georgia, serif;
  --font-figure: ui-monospace, 'SF Mono', SFMono-Regular, Menlo, Consolas, 'Liberation Mono', monospace;
  --max: 1200px;
  --screen-max: 1440px;
  --measure: 64ch;
  --reading-measure: 36em;
  --gutter: clamp(20px, 6.4vw, 24px);
  --gap: 72px;
  --track-display: -0.022em;
  --track-label: 0.09em;
}

@media (min-width: 720px) {
  :root { --gutter: 48px; --gap: 112px; --track-display: -0.03em; }
}

*, *::before, *::after { box-sizing: border-box; }
html { background: var(--black); color: var(--white); -webkit-text-size-adjust: 100%; text-size-adjust: 100%; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body { margin: 0; font-family: var(--font-body); font-size: 1.0625rem; line-height: 1.6; font-kerning: normal; font-optical-sizing: auto; text-rendering: optimizeLegibility; }
h1, h2, h3, h4 { overflow-wrap: break-word; text-wrap: balance; }
p { text-wrap: pretty; }
img, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 0.2em; text-decoration-skip-ink: auto; transition: color 120ms, text-decoration-color 120ms, border-color 120ms; }
a:hover { text-decoration-color: var(--orange); }
:focus-visible { outline: 2px solid var(--orange); outline-offset: 3px; }
::selection { background: var(--orange); color: var(--black); }

.wrap { width: min(100% - 2 * var(--gutter), var(--max)); margin-inline: auto; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.skip { position: absolute; top: -200px; left: var(--gutter); z-index: 20; padding: 12px 16px; background: var(--white); color: var(--black); font-family: var(--font-subtitle); }
.skip:focus { top: 12px; }

/* Header and footer */
.site-header { display: flex; align-items: center; justify-content: space-between; gap: 16px; width: min(100% - 2 * var(--gutter), var(--max)); min-height: 72px; margin-inline: auto; font-family: var(--font-heading); }
.site-header--home { justify-content: flex-end; }
.site-name { font-size: 1.3125rem; font-weight: 600; line-height: 1.2; letter-spacing: -0.012em; text-decoration: none; }
.site-header nav a { display: inline-flex; align-items: center; min-height: 44px; margin-inline-end: -6px; padding-inline: 6px; color: var(--gray); font-size: 1rem; font-weight: 500; letter-spacing: 0.01em; text-decoration: none; }
.site-header nav a:hover { color: var(--white); }
.site-footer { margin-top: var(--gap); border-top: 1px solid var(--rule); }
.footer-inner { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 8px 40px; padding-block: 24px 48px; color: var(--gray); font-family: var(--font-subtitle); font-size: 0.9375rem; line-height: 1.5; letter-spacing: 0.005em; }
.footer-inner p { margin: 0; }
.footer-links { display: flex; gap: 28px; }
.footer-links a { display: inline-flex; align-items: center; min-height: 44px; color: var(--white); text-decoration: none; }
.footer-links a:hover { text-decoration: underline; text-decoration-color: var(--orange); }
.footer-note { max-width: 60ch; }

@media (min-width: 720px) {
  .site-header { min-height: 84px; }
}

/* Home */
.intro { padding-block: clamp(12px, 4.5vw, 52px) clamp(36px, 5.5vw, 72px); }
.display { margin: 0; margin-inline-start: -0.025em; font-family: var(--font-heading); font-size: clamp(2.75rem, 10.5vw, 8.25rem); font-weight: 600; line-height: 0.9; letter-spacing: var(--track-display); }
.intro-line { max-width: 36ch; margin: clamp(18px, 2.4vw, 30px) 0 0; color: var(--gray); font-family: var(--font-subtitle); font-size: clamp(1.125rem, 2vw, 1.4375rem); line-height: 1.42; letter-spacing: -0.004em; text-wrap: balance; }
.screen { max-width: var(--screen-max); margin-inline: auto; }
.featured-text { margin-top: clamp(24px, 3.5vw, 44px); }
.featured-title { margin: 0; font-family: var(--font-heading); font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 600; line-height: 1.02; letter-spacing: -0.024em; }
.featured-title a, .row-title a, .pager a { text-decoration: none; }
.featured-title a:hover, .row-title a:hover, .pager a:hover { text-decoration: underline; text-decoration-color: var(--orange); text-decoration-thickness: 2px; text-underline-offset: 0.14em; }
.descriptor { max-width: 44ch; margin: 0.7em 0 0; color: var(--gray); font-family: var(--font-subtitle); font-size: clamp(1.0625rem, 1.5vw, 1.1875rem); line-height: 1.45; text-wrap: balance; }
.meta { margin: 14px 0 0; color: var(--gray); font-family: var(--font-subtitle); font-size: 0.9375rem; letter-spacing: 0.01em; font-variant-numeric: tabular-nums; }

/* Project index rows */
.index { margin-top: var(--gap); }
.section-title { margin: 0 0 clamp(18px, 2.5vw, 28px); font-family: var(--font-heading); font-size: clamp(1.5rem, 2.6vw, 1.875rem); font-weight: 600; line-height: 1.1; letter-spacing: -0.014em; }
.rows { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--rule); }
.row { display: grid; align-items: center; gap: 20px 56px; padding-block: clamp(28px, 4vw, 52px); border-bottom: 1px solid var(--rule); }
.row-media { display: block; }
.row-media img { width: 100%; height: auto; }
.row-title { margin: 0; font-family: var(--font-heading); font-size: clamp(1.75rem, 3.4vw, 2.75rem); font-weight: 600; line-height: 1.04; letter-spacing: -0.022em; }
.row-note { max-width: 44ch; margin: 14px 0 0; font-size: 1rem; line-height: 1.55; }
.recording-links { margin: 10px 0 0; padding: 0; list-style: none; font-family: var(--font-subtitle); }
.recording-links a { display: inline-flex; align-items: center; min-height: 44px; }
.meta-inline { margin-inline-start: 0.2em; color: var(--gray); font-size: 0.9375rem; letter-spacing: 0.01em; font-variant-numeric: tabular-nums; }
.row--forthcoming { display: block; padding-block: clamp(28px, 4vw, 52px) 0; border-bottom: 0; }
.forthcoming-field { padding: clamp(28px, 5vw, 56px); background: var(--navy); }
.label { margin: 0 0 14px; color: var(--orange); font-family: var(--font-subtitle); font-size: 0.8125rem; font-weight: 500; line-height: 1.2; letter-spacing: var(--track-label); text-transform: uppercase; }

@media (min-width: 720px) {
  .row { grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); }
}

/* Video */
.video-figure { margin: 0; }
.video-figure video { width: 100%; height: auto; max-height: 80vh; max-height: 80svh; background: var(--black); }
.video-figure--youtube iframe { display: block; width: 100%; height: auto; min-height: 200px; aspect-ratio: 16 / 9; border: 0; background: var(--black); }
.video-figure figcaption { display: flex; flex-wrap: wrap; align-items: baseline; gap: 2px 14px; margin-top: 14px; color: var(--gray); font-family: var(--font-subtitle); font-size: 0.9375rem; line-height: 1.45; }
.screen figcaption { width: min(100% - 2 * var(--gutter), var(--max)); margin-inline: auto; }
.media-title { color: var(--white); letter-spacing: 0.005em; }
.media-meta { letter-spacing: 0.01em; font-variant-numeric: tabular-nums; }
.media-status { flex-basis: 100%; color: var(--orange); }
.media-status:empty { display: none; }
.video-figure[data-state='loading'] video { cursor: progress; }

/* Project pages */
.project-header { padding-block: clamp(16px, 5vw, 64px) clamp(28px, 4vw, 48px); }
.project-title { margin: 0; font-family: var(--font-heading); font-size: clamp(2.5rem, 7.5vw, 5.75rem); font-weight: 600; line-height: 0.98; letter-spacing: var(--track-display); }
.project-title--small { font-size: clamp(2rem, 5vw, 3.75rem); line-height: 1.04; letter-spacing: -0.024em; }
.project-descriptor { max-width: 40ch; margin: clamp(14px, 2vw, 24px) 0 0; color: var(--gray); font-family: var(--font-subtitle); font-size: clamp(1.125rem, 2vw, 1.4375rem); line-height: 1.42; letter-spacing: -0.004em; text-wrap: balance; }
.project-header .meta { margin-top: 18px; }
.depth-nav { position: sticky; top: 0; z-index: 10; background: rgba(0, 0, 0, 0.94); border-block: 1px solid var(--rule); }
.depth-nav ul { display: flex; flex-wrap: wrap; gap: 0 clamp(20px, 3vw, 40px); width: min(100% - 2 * var(--gutter), var(--max)); margin: 0 auto; padding: 0; list-style: none; }
.depth-nav a { display: inline-flex; align-items: center; min-height: 48px; border-bottom: 2px solid transparent; color: var(--gray); font-family: var(--font-heading); font-size: 1rem; font-weight: 500; letter-spacing: 0.01em; text-decoration: none; }
.depth-nav a:hover, .depth-nav a[aria-current] { border-bottom-color: var(--orange); color: var(--white); }
.depth { padding-top: var(--gap); scroll-margin-top: 104px; }
.depth--watch { padding-top: clamp(24px, 3vw, 40px); }
.depth h2 { margin: 0 0 clamp(24px, 3vw, 40px); font-family: var(--font-heading); font-size: clamp(1.875rem, 3.6vw, 2.625rem); font-weight: 600; line-height: 1.08; letter-spacing: -0.022em; }
.depth h3 { margin: 0; font-family: var(--font-heading); font-size: 1.25rem; font-weight: 600; line-height: 1.36; letter-spacing: -0.006em; }
.prose { max-width: var(--measure); hanging-punctuation: first; }
.prose p { margin: 0 0 1em; }
.prose p:last-child { margin-bottom: 0; }
.lead { margin-bottom: clamp(28px, 3.5vw, 48px); font-size: 1.1875rem; line-height: 1.55; }
.watch-note { max-width: var(--measure); margin: 22px 0 0; font-size: 1.1875rem; line-height: 1.55; }
.realizations { margin-top: clamp(56px, 7vw, 96px); }
.realizations > h3 { margin-bottom: 18px; color: var(--gray); font-family: var(--font-subtitle); font-size: 0.8125rem; font-weight: 500; line-height: 1.2; letter-spacing: var(--track-label); text-transform: uppercase; }
.realization { max-width: 960px; margin-bottom: clamp(40px, 5vw, 64px); scroll-margin-top: 104px; }
.realization:last-child { margin-bottom: 0; }
.realization-note { max-width: var(--measure); margin: 12px 0 0; }
.depth--field { margin-top: var(--gap); padding-block: var(--gap); background: var(--navy); }
.entry { display: grid; gap: 10px 48px; padding-block: 28px 32px; border-top: 1px solid var(--rule); }
.seek { display: inline-flex; align-items: center; min-height: 44px; font-family: var(--font-subtitle); letter-spacing: 0.005em; font-variant-numeric: tabular-nums; text-decoration-color: var(--orange); text-underline-offset: 0.24em; }
.source-note { max-width: 46rem; margin: 0; padding-top: 28px; border-top: 1px solid var(--rule-field); color: var(--gray); font-family: var(--font-subtitle); font-size: 0.9375rem; letter-spacing: 0.005em; }
.forthcoming-panel { padding-block: var(--gap); background: var(--navy); }
.forthcoming-panel .prose { font-size: 1.1875rem; line-height: 1.55; }
.planned { color: var(--white); }
.not-found { padding-block: var(--gap); }

@media (min-width: 1080px) {
  .entry { grid-template-columns: 16rem minmax(0, var(--measure)); }
}

/* Reading-led projects: a header introduction and explanatory prose in a system serif */
.project-intro { max-width: 34em; margin: clamp(18px, 2.4vw, 28px) 0 0; font-family: var(--font-reading); font-size: clamp(1.125rem, 1.4vw, 1.25rem); line-height: 1.58; }
.project--reading .prose { max-width: var(--reading-measure); font-family: var(--font-reading); font-size: 1.125rem; line-height: 1.62; }
.project--reading .lead { font-size: 1.1875rem; line-height: 1.58; }

/* At a glance: source values, the shared mapping and the resulting tones */
.glance { margin-top: clamp(48px, 6vw, 80px); padding-top: clamp(24px, 3vw, 32px); border-top: 1px solid var(--rule); }
.glance > h3, .pending > h3 { margin-bottom: clamp(20px, 2.5vw, 28px); color: var(--gray); font-family: var(--font-subtitle); font-size: 0.8125rem; font-weight: 500; line-height: 1.2; letter-spacing: var(--track-label); text-transform: uppercase; }
.glance-steps { display: grid; gap: 48px; margin: 0; padding: 0; list-style: none; }
.glance-step { position: relative; min-width: 0; }
.glance-step + .glance-step::before { content: ''; position: absolute; top: -30px; left: 2px; width: 9px; height: 9px; border-right: 1.5px solid var(--gray); border-bottom: 1.5px solid var(--gray); transform: rotate(45deg); }
.glance-kind { margin: 0 0 8px; color: var(--gray); font-family: var(--font-subtitle); font-size: 0.8125rem; font-weight: 500; line-height: 1.2; letter-spacing: var(--track-label); text-transform: uppercase; }
.glance-label { margin: 0; font-family: var(--font-heading); font-size: 1.25rem; font-weight: 600; line-height: 1.25; letter-spacing: -0.006em; }
.glance-values { margin: 14px 0 0; }
.glance-values div { display: flex; flex-wrap: wrap; align-items: baseline; gap: 2px 14px; padding-block: 8px; border-top: 1px solid var(--rule); }
.glance-values div:last-child { border-bottom: 1px solid var(--rule); }
.glance-values dt { min-width: 4.5rem; color: var(--gray); font-family: var(--font-subtitle); font-size: 0.9375rem; }
.glance-values dd { margin: 0; font-family: var(--font-figure); font-size: 0.9375rem; font-variant-numeric: tabular-nums; }
.glance-note { max-width: 36ch; margin: 12px 0 0; color: var(--gray); font-family: var(--font-subtitle); font-size: 0.9375rem; line-height: 1.5; }

@media (min-width: 860px) {
  .glance-steps { grid-auto-flow: column; grid-auto-columns: minmax(0, 1fr); gap: 0 64px; }
  .glance-step + .glance-step::before { top: 0.25rem; left: -37px; transform: rotate(-45deg); }
}

/* Frequency scales: positions come from content values; labels sit above or below the axis */
.scale-figure { display: grid; gap: 32px 64px; margin: clamp(40px, 5vw, 56px) 0 0; }
.scale-block { min-width: 0; }
.scale-title { margin: 0 0 6px; color: var(--gray); font-family: var(--font-subtitle); font-size: 0.9375rem; }
.scale { --lane: 5.5rem; position: relative; height: calc(2 * var(--lane)); margin: 0; padding: 0; list-style: none; font-family: var(--font-subtitle); font-size: 0.875rem; line-height: 1.3; }
.scale::before { content: ''; position: absolute; inset-inline: 0; top: var(--lane); border-top: 1px solid rgba(255, 255, 255, 0.5); }
.scale-mark, .scale-origin, .scale-span { position: absolute; top: var(--lane); }
.scale-mark { z-index: 1; left: var(--at); width: 0; }
.scale-mark::before { content: ''; position: absolute; top: -4px; left: -4px; width: 8px; height: 8px; border-radius: 50%; background: var(--white); }
.scale-mark--above::after { content: ''; position: absolute; bottom: 4px; left: -0.5px; height: 10px; border-left: 1px solid var(--gray); }
.scale-mark--reference::before { top: -14px; left: -1px; width: 2px; height: 22px; border-radius: 0; }
.scale-mark--reference::after { display: none; }
.scale-label { position: absolute; display: block; width: max-content; max-width: 9rem; }
.scale-mark--above .scale-label { bottom: 16px; }
.scale-mark--below .scale-label { top: 12px; }
.scale-mark--center .scale-label { left: 0; transform: translateX(-50%); text-align: center; }
.scale-mark--start .scale-label { left: -4px; }
.scale-mark--end .scale-label { right: -4px; text-align: end; }
.scale-name, .scale-value { display: block; }
.scale-value { color: var(--gray); font-family: var(--font-figure); font-size: 0.8125rem; font-variant-numeric: tabular-nums; }
.scale-origin { left: 0; padding-top: 12px; color: var(--gray); font-family: var(--font-figure); font-size: 0.8125rem; }
.scale-origin::before { content: ''; position: absolute; top: -6px; left: 0; height: 12px; border-left: 1px solid rgba(255, 255, 255, 0.5); }
.scale-span { left: var(--from); width: calc(var(--to) - var(--from)); }
.scale-span::before { content: ''; position: absolute; top: -1.5px; inset-inline: 0; height: 3px; background: var(--orange); }
.scale-span .scale-label { top: 52px; left: 50%; max-width: 6rem; transform: translateX(-50%); font-family: var(--font-figure); font-size: 0.8125rem; text-align: center; font-variant-numeric: tabular-nums; }
.scale-figure figcaption { max-width: 62ch; color: var(--gray); font-family: var(--font-subtitle); font-size: 0.9375rem; line-height: 1.5; }

@media (min-width: 860px) {
  .scale-figure { grid-template-columns: minmax(0, 3fr) minmax(0, 2fr); }
  .scale-figure figcaption { grid-column: 1 / -1; }
}

/* Pending example: named work whose recording has not been added */
.pending { margin-top: clamp(48px, 6vw, 80px); }
.pending-list { display: grid; gap: 16px; margin: 0; padding: 0; list-style: none; }
.pending-item { max-width: 40rem; padding: 20px clamp(18px, 3vw, 28px) 22px; border: 1px dashed rgba(255, 255, 255, 0.32); }
.pending-name { margin: 0; font-family: var(--font-heading); font-size: 1.25rem; font-weight: 600; line-height: 1.25; letter-spacing: -0.006em; }
.pending-status { margin: 6px 0 0; color: var(--orange); font-family: var(--font-subtitle); font-size: 0.8125rem; font-weight: 500; line-height: 1.2; letter-spacing: var(--track-label); text-transform: uppercase; }
.pending-note { max-width: 56ch; margin: 12px 0 0; color: var(--gray); font-family: var(--font-subtitle); font-size: 0.9375rem; line-height: 1.5; }

/* Explanation steps as native disclosures */
.method { max-width: 46rem; border-top: 1px solid var(--rule-field); scroll-margin-top: 104px; }
.method summary { display: flex; align-items: center; gap: 4px 16px; min-height: 60px; padding-block: 14px; cursor: pointer; list-style: none; }
.method summary::-webkit-details-marker { display: none; }
.method-num { flex: none; width: 1.75rem; color: var(--gray); font-family: var(--font-figure); font-size: 0.875rem; font-variant-numeric: tabular-nums; }
.depth .method h3 { flex: 1 1 auto; min-width: 0; font-size: 1.1875rem; line-height: 1.3; text-decoration-thickness: 1px; text-underline-offset: 0.2em; }
.method-time { flex: none; color: var(--gray); font-family: var(--font-figure); font-size: 0.875rem; font-variant-numeric: tabular-nums; }
.method summary::after { content: ''; flex: none; width: 8px; height: 8px; margin: -4px 6px 0 4px; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; color: var(--gray); transform: rotate(45deg); transition: transform 160ms, color 120ms; }
.method details[open] > summary::after { margin-top: 4px; transform: rotate(-135deg); }
.method summary:hover::after, .method summary:focus-visible::after { color: var(--white); }
.method summary:hover h3 { text-decoration: underline; text-decoration-color: var(--orange); }
.method-body { padding-bottom: 32px; }

@media (min-width: 560px) {
  .method-body { padding-inline-start: calc(1.75rem + 16px); }
}

/* Pager */
.pager { display: grid; gap: 4px 32px; margin-top: var(--gap); padding-top: clamp(24px, 3vw, 36px); border-top: 1px solid var(--rule); }
.pager a { display: block; min-height: 44px; padding-block: 8px; font-family: var(--font-heading); font-size: 1.25rem; font-weight: 600; line-height: 1.25; letter-spacing: -0.012em; }
.pager small { display: block; margin-bottom: 4px; color: var(--gray); font-family: var(--font-subtitle); font-size: 0.8125rem; font-weight: 500; line-height: 1rem; letter-spacing: var(--track-label); text-transform: uppercase; }
.pager-all { color: var(--gray); font-weight: 500; }
.pager-all:hover { color: var(--white); }

@media (min-width: 720px) {
  .pager { grid-template-columns: 1fr auto 1fr; align-items: start; }
  .pager-all { padding-top: calc(8px + 1rem + 4px); }
  .pager-next { text-align: right; }
}

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

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

/* Owner-supplied reference still; deliberately separate from video controls. */
.pending-still { margin: 20px 0 0; }
.pending-still img { width: 100%; height: auto; }
.pending-still figcaption { margin-top: 10px; color: var(--gray); font-family: var(--font-subtitle); font-size: 0.875rem; line-height: 1.5; }

@media (max-width: 360px) {
  .scale-block:first-child .scale-mark--below.scale-mark--center .scale-label { top: 52px; }
  .scale-block:first-child .scale-mark--below.scale-mark--center::after { content: ""; position: absolute; top: 4px; left: -0.5px; height: 42px; border-left: 1px solid var(--rule); }
}

@media (max-width: 559px) {
  .method summary { display: grid; grid-template-columns: 1.25rem minmax(0, 1fr) 8px; gap: 4px 12px; }
  .method-num { grid-column: 1; grid-row: 1; width: auto; }
  .depth .method h3 { grid-column: 2; grid-row: 1; }
  .method-time { grid-column: 2; grid-row: 2; }
  .method summary::after, .method details[open] > summary::after { grid-column: 3; grid-row: 1 / span 2; margin: 0; }
}

/* ---------------------------------------------------------------------------
   Reading-order project (today Musical Universe): a compact account of the
   designed work, folded process notes, and a research field that keeps the
   numbers behind one native disclosure. New classes only, declared last, so
   the .method accordion and every other project layout above are untouched.
   --------------------------------------------------------------------------- */

/* What was designed: a short heading and one plain paragraph each */
.designed { padding-top: var(--gap); }
.designed .designed-title { margin: 0 0 clamp(24px, 3vw, 40px); font-family: var(--font-heading); font-size: clamp(1.875rem, 3.6vw, 2.625rem); font-weight: 600; line-height: 1.08; letter-spacing: -0.022em; }
.designed-list { margin: 0; padding: 0; list-style: none; }
.designed-item { display: grid; gap: 8px 56px; padding-block: clamp(20px, 2.6vw, 26px); border-top: 1px solid var(--rule); }
.designed-item:last-child { border-bottom: 1px solid var(--rule); }
.designed .designed-heading { margin: 0; font-family: var(--font-heading); font-size: 1.1875rem; font-weight: 600; line-height: 1.32; letter-spacing: -0.006em; }

@media (min-width: 1000px) {
  .designed-item { grid-template-columns: 17rem minmax(0, var(--reading-measure)); align-items: start; }
}

/* Pending example, lifted out of Watch into its own section */
.pending.pending--reading { margin-top: var(--gap); }
.pending--reading > h2 { margin: 0 0 clamp(20px, 2.5vw, 28px); color: var(--gray); font-family: var(--font-subtitle); font-size: 0.8125rem; font-weight: 500; line-height: 1.2; letter-spacing: var(--track-label); text-transform: uppercase; }

/* Native disclosures for optional depth: process notes and the full research */
.disclose { margin-top: clamp(28px, 3.5vw, 40px); border-block: 1px solid var(--rule); }
.disclose--notes { max-width: 64rem; }
.disclose--research { max-width: none; }
.depth--field .disclose { border-block-color: var(--rule-field); }
.disclose-summary { display: flex; align-items: center; gap: 16px; min-height: 56px; padding-block: 16px; cursor: pointer; list-style: none; font-family: var(--font-heading); font-size: 1.0625rem; font-weight: 600; line-height: 1.35; letter-spacing: -0.004em; }
.disclose-summary::-webkit-details-marker { display: none; }
.disclose-label { min-width: 0; }
.disclose-summary::after { content: ''; flex: none; width: 9px; height: 9px; margin: -3px 2px 0 0; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; color: var(--gray); transform: rotate(45deg); transition: transform 160ms, color 120ms; }
.disclose[open] > .disclose-summary::after { margin-top: 3px; transform: rotate(-135deg); }
.disclose-summary:hover::after, .disclose-summary:focus-visible::after { color: var(--white); }
.disclose-summary:hover .disclose-label { text-decoration: underline; text-decoration-color: var(--orange); text-decoration-thickness: 1px; text-underline-offset: 0.2em; }
.disclose-body { padding-block: 2px 36px; }
.disclose-note { max-width: 56ch; margin: 0 0 clamp(24px, 3vw, 32px); color: var(--gray); font-family: var(--font-subtitle); font-size: 0.9375rem; line-height: 1.55; }
.entry--notes { padding-block: 24px 28px; }

/* Research: plain downloads stay visible; small labels keep the field scannable */
.research .research-label { margin: clamp(32px, 4vw, 44px) 0 clamp(14px, 1.8vw, 18px); color: var(--gray); font-family: var(--font-subtitle); font-size: 0.8125rem; font-weight: 500; line-height: 1.2; letter-spacing: var(--track-label); text-transform: uppercase; }
.downloads { display: grid; gap: clamp(16px, 2.2vw, 22px); max-width: 46rem; margin: 0; padding: 0; list-style: none; }
.download { min-width: 0; }
.download-link { display: inline-block; max-width: 100%; min-height: 44px; padding-block: 10px; font-family: var(--font-heading); font-size: 1.0625rem; font-weight: 600; line-height: 1.4; letter-spacing: -0.004em; overflow-wrap: anywhere; text-decoration-color: var(--orange); text-decoration-thickness: 1px; text-underline-offset: 0.22em; }
.download-note { max-width: 58ch; margin: 0; color: var(--gray); font-family: var(--font-subtitle); font-size: 0.9375rem; line-height: 1.55; overflow-wrap: break-word; }

/* Numbered references: linked title and short scope note, both free to wrap */
.references { max-width: 48rem; margin: 0; padding-inline-start: 2.4em; }
.reference { min-width: 0; }
.reference + .reference { margin-top: clamp(18px, 2.4vw, 24px); }
.reference::marker { color: var(--gray); font-family: var(--font-figure); font-size: 0.8125rem; }
.reference-title { margin: 0; font-family: var(--font-subtitle); font-size: 1rem; line-height: 1.5; }
.reference-title a { overflow-wrap: anywhere; text-decoration-color: var(--orange); text-underline-offset: 0.2em; }
.reference-note { max-width: 62ch; margin: 6px 0 0; color: var(--gray); font-family: var(--font-subtitle); font-size: 0.9375rem; line-height: 1.55; overflow-wrap: break-word; }

/* Flat method steps inside the opened research: no second layer of accordions */
.research .step-intro { margin-bottom: clamp(20px, 2.6vw, 28px); }
.step { max-width: 46rem; padding-block: clamp(22px, 2.8vw, 30px); border-top: 1px solid var(--rule-field); }
.step-meta { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 16px; margin: 0; color: var(--gray); font-family: var(--font-figure); font-size: 0.8125rem; line-height: 1.3; letter-spacing: 0.02em; font-variant-numeric: tabular-nums; }
.research .step-title { margin: 6px 0 0; font-family: var(--font-heading); font-size: 1.25rem; font-weight: 600; line-height: 1.3; letter-spacing: -0.008em; scroll-margin-top: 104px; }
.step-body { margin-top: 12px; }

/* The glance block inside the Research container: one wrap, field hairlines */
.glance.glance--research { margin-top: clamp(28px, 3.2vw, 36px); padding-top: 0; border-top: 0; }
.glance--research .glance-values div { border-top-color: var(--rule-field); }
.glance--research .glance-values div:last-child { border-bottom-color: var(--rule-field); }

@media (max-width: 360px) {
  .glance--research .scale-block:first-child .scale-mark--below.scale-mark--center::after { border-left-color: var(--rule-field); }
}

/* Validated content-derived scale positions */
.scale-musical-universe-0-mark-0 { --at: 45.311%; }
.scale-musical-universe-0-mark-1 { --at: 88.874%; }
.scale-musical-universe-0-mark-2 { --at: 90.622%; }
.scale-musical-universe-1-mark-0 { --at: 22.382%; }
.scale-musical-universe-1-mark-1 { --at: 78.941%; }
.scale-musical-universe-1-span { --from: 22.382%; --to: 78.941%; }