/* Aeolian Harp: case study page (Stage 5.1)
   Warm-white ground, near-black text, muted grey rules, dark green accent.
   Editorial rhythm: narrow prose column, wide media. */
:root {
  /* portfolio tokens (Stage 6: aligned with the shared site system, home.css) */
  --bg: #FAF9F6;
  --stage: #f1ede4;
  --ink: #222321;
  --muted: #626660;
  --rule: #DADDD5;
  --accent: #365848;
  --accent-soft: #e4ebe3;
  --serif: Georgia, "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --prose: 36rem;
  --wide: 76rem;
  --gutter: clamp(1rem, 4vw, 2.5rem);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 1.0625rem/1.6 var(--sans); }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-underline-offset: 0.15em; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.skip { position: absolute; left: 1rem; top: -3rem; background: var(--ink); color: var(--bg); padding: 0.5rem 0.75rem; z-index: 10; }
.skip:focus { top: 1rem; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; }

h1, h2 { font-family: var(--serif); font-weight: normal; line-height: 1.12; }
.eyebrow, .num { font-size: 0.8125rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin: 0; }
figcaption { font-size: 0.875rem; color: var(--muted); margin-top: 0.6rem; }

/* ---------------- hero ---------------- */
.hero { max-width: var(--wide); margin: 0 auto; padding: clamp(2.5rem, 7vw, 5.5rem) var(--gutter) 0; }
.hero-text { max-width: 44rem; }
.hero h1 { font-size: clamp(2.5rem, 8vw, 4.75rem); margin: 0.75rem 0 0; letter-spacing: -0.015em; }
.thesis { font-family: var(--serif); font-size: clamp(1.3rem, 3vw, 1.75rem); line-height: 1.3; margin: 1rem 0 0.75rem; }
.dek { color: var(--muted); margin: 0 0 1.5rem; max-width: 36rem; }
.process { list-style: none; display: flex; flex-wrap: wrap; gap: 0.25rem 0; padding: 0; margin: 0 0 2.5rem; font-size: 0.875rem; color: var(--muted); }
.process li + li::before { content: "→"; margin: 0 0.55rem; color: var(--rule); }
.process li:first-child, .process li:last-child { color: var(--ink); }
.hero-image { margin: 0; }
.hero-image img { width: 100%; }

/* ---------------- bands ---------------- */
main { max-width: var(--wide); margin: 0 auto; padding: 0 var(--gutter); }
.band, .artifact { padding: clamp(3.5rem, 8vw, 6rem) 0 0; }
.prose { max-width: var(--prose); }
.prose-wide { max-width: 55rem; }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); margin: 0.4rem 0 1rem; }
.prose p { margin: 0 0 1rem; }
.lead { font-family: var(--serif); font-size: clamp(1.15rem, 2.4vw, 1.4rem); line-height: 1.4; }
.source, .source-note, .caveat { font-size: 0.875rem; color: var(--muted); line-height: 1.5; }
.source-note { border-top: 1px solid var(--rule); padding-top: 1rem; margin-top: 1.5rem; }

/* fabrication */
.fab-grid { display: grid; gap: 1rem; margin-top: 2rem; grid-template-columns: 1fr 1fr; }
.fab-grid figure { margin: 0; }
.fab-grid .fab-main { grid-column: 1 / -1; }
.fab-grid img { width: 100%; object-fit: cover; }
.fab-grid figure:not(.fab-main) img { aspect-ratio: 3 / 4; }
@media (min-width: 60rem) {
  .fab-grid { grid-template-columns: 7fr 4fr; grid-template-rows: auto auto; }
  .fab-grid .fab-main { grid-column: 1; grid-row: 1 / span 2; }
  .fab-grid .fab-main img { height: 100%; aspect-ratio: auto; }
  .fab-grid figure:not(.fab-main) img { aspect-ratio: 4 / 3; }
}

/* figures */
.figure { margin: 1.75rem 0; }
.figure img { width: 100%; border: 1px solid var(--rule); background: var(--bg); }
.figure.render img { border: 0; }

/* specs */
.specs { margin: 1.25rem 0; border-top: 1px solid var(--rule); }
.specs div { display: grid; grid-template-columns: 7.5rem 1fr; gap: 1rem; padding: 0.5rem 0; border-bottom: 1px solid var(--rule); font-size: 0.9375rem; }
.specs dt { color: var(--muted); }
.specs dd { margin: 0; }

/* details */
.more { border-top: 1px solid var(--rule); padding-top: 0.75rem; }
.more summary { cursor: pointer; color: var(--accent); min-height: 44px; display: flex; align-items: center; }
.more .plain { padding-left: 1.1rem; font-size: 0.9375rem; }

/* ---------------- buttons ---------------- */
button { font: inherit; color: inherit; }
.focus button, .toolbar button, .play {
  min-height: 44px; min-width: 44px; padding: 0.45rem 0.9rem;
  background: transparent; color: var(--ink);
  border: 1px solid var(--rule); border-radius: 2px; cursor: pointer; font-size: 0.875rem;
}
.focus button:hover, .toolbar button:hover, .play:hover { border-color: var(--muted); }
.focus button[aria-pressed="true"], .toolbar button[aria-pressed="true"] { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }
button:disabled { opacity: 0.45; cursor: not-allowed; }
.link-btn { background: none; border: 0; padding: 0.35rem 0; min-height: 44px; color: var(--accent); text-decoration: underline; text-underline-offset: 0.15em; cursor: pointer; }
.inline-actions { display: flex; flex-wrap: wrap; gap: 0 1.25rem; }

/* ---------------- viewer ---------------- */
.viewer { margin: 1.5rem 0 0; }
.stage {
  position: relative; width: 100%;
  aspect-ratio: 1 / 1; max-height: 78vh; min-height: 20rem;
  background: var(--stage); overflow: hidden;
}
@media (min-width: 48rem) { .stage { aspect-ratio: 3 / 2; } }
.stage .fallback { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.stage canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; touch-action: none; }
.stage canvas:focus-visible { outline-offset: -3px; }
.stage.is-live .fallback { visibility: hidden; }
.stage-status { position: absolute; left: 0.75rem; bottom: 0.5rem; margin: 0; font-size: 0.8125rem; color: var(--muted); background: color-mix(in srgb, var(--stage) 85%, transparent); padding: 0.15rem 0.4rem; }
.stage-status:empty { display: none; }

.hotspot {
  position: absolute; transform: translate(-50%, calc(-100% - 10px));
  min-height: 32px; padding: 0.2rem 0.6rem; font-size: 0.75rem;
  background: var(--bg); color: var(--ink); border: 1px solid var(--rule); border-radius: 2px; cursor: pointer; white-space: nowrap;
}
.hotspot::after { content: ""; position: absolute; left: 50%; top: 100%; width: 1px; height: 10px; background: var(--muted); }
.hotspot[aria-pressed="true"] { border-color: var(--accent); color: var(--accent); }

.viewer-controls { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.5rem 1.5rem; margin-top: 0.75rem; }
.focus, .toolbar { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.facts { margin-top: 0.75rem; max-width: var(--prose); font-size: 0.9375rem; min-height: 1.5rem; }
.facts h3 { font-family: var(--serif); font-weight: normal; font-size: 1.125rem; margin: 0 0 0.25rem; }
.facts ul { margin: 0; padding-left: 1.1rem; }
.legend ul { list-style: none; display: flex; flex-wrap: wrap; gap: 0.25rem 1.25rem; margin: 0.5rem 0 0; padding: 0; font-size: 0.8125rem; color: var(--muted); }
.legend li { display: flex; align-items: center; gap: 0.4rem; }
.swatch { width: 0.9rem; height: 0.2rem; }
.sw-source { background: #6f7a86; }
.sw-photo { background: #b07a2a; }
.sw-artist { background: #2f5d3a; }

/* ---------------- recording ---------------- */
.recording-grid { display: grid; gap: 1.5rem; margin-top: 1rem; }
@media (min-width: 60rem) { .recording-grid { grid-template-columns: 24rem 1fr; gap: 3rem; align-items: start; } }
.rec-still { margin: 0; }
.rec-still img { width: 100%; }
@media (max-width: 59.99rem) { .rec-still img { max-height: 70vh; width: auto; margin: 0 auto; } }
.rec-body { max-width: var(--prose); }
.player { display: flex; gap: 1rem; align-items: flex-start; border: 1px solid var(--rule); padding: 1rem; margin: 0 0 1.5rem; background: var(--bg); }
.play { display: inline-flex; align-items: center; gap: 0.5rem; flex: none; }
.play-icon { width: 0; height: 0; border-left: 0.6rem solid currentColor; border-top: 0.38rem solid transparent; border-bottom: 0.38rem solid transparent; }
.play[aria-pressed="true"] .play-icon { width: 0.6rem; height: 0.75rem; border: 0; border-left: 0.2rem solid currentColor; border-right: 0.2rem solid currentColor; }
.player-body { flex: 1; min-width: 0; }
.rec-label { margin: 0 0 0.5rem; font-weight: 600; }
.rec-meta { display: block; font-weight: normal; font-size: 0.8125rem; color: var(--muted); }
.wave {
  --p: 0%; height: 3rem;
  background: linear-gradient(to right, var(--accent) var(--p), #b3aea3 var(--p));
  -webkit-mask: url(assets/figures/recording-waveform.svg) center / 100% 100% no-repeat;
          mask: url(assets/figures/recording-waveform.svg) center / 100% 100% no-repeat;
}
#seek { width: 100%; margin: 0.4rem 0 0; accent-color: var(--accent); min-height: 24px; }
.time { margin: 0.15rem 0 0; font-size: 0.8125rem; color: var(--muted); font-variant-numeric: tabular-nums; }
@media (max-width: 26rem) { .player { flex-direction: column; } }

.findings { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; margin: 0 0 1.25rem; padding: 1rem 0; border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
.findings dt { font-family: var(--serif); font-size: clamp(1.25rem, 3vw, 1.75rem); line-height: 1.1; }
.findings dd { margin: 0.3rem 0 0; font-size: 0.8125rem; color: var(--muted); }
@media (max-width: 26rem) { .findings { grid-template-columns: 1fr; } }

/* ---------------- final artifact ---------------- */
.artifact { padding-bottom: 4rem; }
.artifact-pair { display: grid; gap: 1rem; margin-top: 1.5rem; }
@media (min-width: 48rem) { .artifact-pair { grid-template-columns: 1fr 1fr; } }
.artifact figure { margin: 0; }
.artifact-final { margin: clamp(3rem, 8vw, 6rem) auto 0 !important; max-width: 44rem; }

.colophon { max-width: var(--wide); margin: 0 auto; padding: 2rem var(--gutter) 3rem; border-top: 1px solid var(--rule); font-size: 0.8125rem; color: var(--muted); }
.colophon p { max-width: 48rem; }

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

/* ---------------- Stage 5.3: built by hand (single image), byline, pull quote ---------------- */
.built { display: grid; gap: 1.5rem; }
.built-image { margin: 0; }
.built-image img { width: 100%; }
@media (min-width: 60rem) {
  .built { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 3rem; align-items: end; }
  .built-text { grid-column: 2; grid-row: 1; padding-bottom: 2rem; }
  .built-image { grid-column: 1; grid-row: 1; }
}
.byline { font-size: 0.9375rem; color: var(--muted); }
.pull { margin: 1.75rem 0 0; padding-left: 1rem; border-left: 2px solid var(--accent); }
.pull p { font-family: var(--serif); font-size: clamp(1.15rem, 2.4vw, 1.4rem); line-height: 1.4; margin: 0 0 0.4rem; }
.pull cite { font-style: normal; font-size: 0.8125rem; color: var(--muted); }

/* ---------------- Stage 6: portfolio shell (scoped copy of home.css header rules) ---------------- */
.site-wrap { width: min(75rem, calc(100% - clamp(1.25rem, 4vw, 3rem) * 2)); margin-inline: auto; }
.site-header { display: flex; align-items: center; justify-content: space-between; gap: .5rem 2rem; padding-block: 1rem; border-bottom: 1px solid var(--rule); }
.wordmark { display: inline-flex; align-items: center; min-height: 44px; font-size: .9375rem; font-weight: 600; text-decoration: none; color: var(--ink); }
.site-nav { display: flex; flex-wrap: wrap; column-gap: 1.5rem; }
.site-nav a { display: inline-flex; align-items: center; min-height: 44px; font-size: .9375rem; text-decoration: none; color: var(--muted); transition: color 200ms; }
.site-nav a:hover, .site-nav a:focus-visible { color: var(--ink); }
.cs-back { display: inline-flex; align-items: center; gap: .5rem; min-height: 44px; margin-bottom: 1rem; font-size: .9375rem; color: var(--muted);
  text-decoration: underline; text-decoration-color: var(--rule); text-decoration-thickness: 1px; text-underline-offset: .3em; transition: color 200ms, text-decoration-color 200ms; }
.cs-back:hover, .cs-back:focus-visible { color: var(--accent); text-decoration-color: currentColor; }
.cs-back .arrow { display: inline-block; transition: transform 200ms; }
.cs-back:hover .arrow, .cs-back:focus-visible .arrow { transform: translateX(-3px); }
.hero { padding-top: clamp(2rem, 5vw, 3.5rem); }
@media (max-width: 699px) {
  .site-header { flex-direction: column; align-items: flex-start; gap: 0; padding-block: .5rem; }
  .site-nav { column-gap: 1rem; }
}

/* hero sits inside <main>, which already carries the page gutter */
.hero { padding-left: 0; padding-right: 0; }

/* Stage 6: align the page column with the portfolio shell (.wrap = min(75rem, 100% - 2 × gutter)) */
:root { --gutter: clamp(1.25rem, 4vw, 3rem); --wide: 75rem; }
main, .colophon { width: min(var(--wide), calc(100% - var(--gutter) * 2)); max-width: none; margin-inline: auto; padding-left: 0; padding-right: 0; }