.sound-reference {
  --sr-cream: #f6dca0;
  --sr-amber: #dc7b12;
  --sr-line: rgba(207, 147, 30, .32);
  --sr-panel: #130d07;
  --sr-panel-2: #1b1108;
  background: #070503;
  color: #e9ba4b;
}

.sound-reference a {
  text-decoration-thickness: 1px;
  text-underline-offset: .18em;
}

.sound-reference .sr-wrap {
  width: min(1180px, calc(100% - 48px));
  margin-inline: auto;
}

.sr-hero {
  position: relative;
  min-height: 720px;
  display: grid;
  align-items: end;
  overflow: hidden;
  border-bottom: 1px solid var(--sr-line);
}

.sr-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(5, 3, 2, .98) 0%, rgba(5, 3, 2, .88) 40%, rgba(5, 3, 2, .26) 72%, rgba(5, 3, 2, .35) 100%),
    linear-gradient(0deg, #070503 0%, transparent 32%);
  pointer-events: none;
}

.sr-hero-image {
  position: absolute;
  inset: 0 0 0 38%;
}

.sr-hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 43%;
  filter: saturate(.84) contrast(1.05);
}

.sr-hero-content {
  position: relative;
  z-index: 1;
  padding-block: 135px 82px;
  max-width: 740px;
}

.sr-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
  margin-bottom: 72px;
  font: 500 .8rem/1.3 "Oswald", sans-serif;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.sr-breadcrumb a { color: #d68b25; }
.sr-breadcrumb span:last-child { color: var(--sr-cream); }

.sr-kicker,
.sr-label {
  margin: 0 0 14px;
  font: 500 .82rem/1.2 "Oswald", sans-serif;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: #e29527;
}

.sr-hero h1 {
  max-width: 650px;
  margin: 0;
  font: 400 clamp(5.3rem, 11vw, 9.4rem)/.78 "Bebas Neue", sans-serif;
  letter-spacing: .01em;
  color: var(--sr-cream);
}

.sr-hero-lead {
  max-width: 650px;
  margin: 35px 0 0;
  font: 400 clamp(1.35rem, 2vw, 1.75rem)/1.42 "Crimson Text", serif;
  color: #f1c963;
}

.sr-photo-credit {
  position: absolute;
  z-index: 2;
  right: 20px;
  bottom: 18px;
  padding: 8px 10px;
  background: rgba(3, 2, 1, .76);
  font: 400 .7rem/1.35 "Oswald", sans-serif;
  color: #d7b46d;
}

.sr-facts {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border: solid var(--sr-line);
  border-width: 0 1px 1px;
}

.sr-fact {
  padding: 25px 22px 28px;
  border-right: 1px solid var(--sr-line);
}

.sr-fact:last-child { border-right: 0; }
.sr-fact span {
  display: block;
  margin-bottom: 8px;
  font: 500 .72rem/1.2 "Oswald", sans-serif;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: #a96d21;
}
.sr-fact strong {
  font: 400 1.15rem/1.25 "Oswald", sans-serif;
  color: var(--sr-cream);
}

.sr-section {
  padding-block: 96px;
  border-bottom: 1px solid var(--sr-line);
}

.sr-section-head {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, .65fr);
  gap: 70px;
  align-items: end;
  margin-bottom: 54px;
}

.sr-section h2,
.sr-section h3 {
  margin: 0;
  font-family: "Bebas Neue", sans-serif;
  font-weight: 400;
  color: var(--sr-cream);
}

.sr-section h2 {
  max-width: 820px;
  font-size: clamp(3.4rem, 7vw, 6.4rem);
  line-height: .91;
}

.sr-section-head > p,
.sr-intro-copy,
.sr-prose p {
  font: 400 1.22rem/1.62 "Crimson Text", serif;
  color: #e4b847;
}

.sr-section-head > p { margin: 0; }

.sr-machine {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(290px, .85fr);
  border: 1px solid var(--sr-line);
  background: linear-gradient(135deg, #0d0905, var(--sr-panel));
}

.sr-machine-photo {
  min-height: 610px;
  margin: 0;
  border-right: 1px solid var(--sr-line);
}

.sr-machine-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.sr-machine-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(34px, 5vw, 70px);
}

.sr-machine-copy h3 {
  font-size: clamp(2.7rem, 4.5vw, 4.6rem);
  line-height: .92;
}

.sr-machine-copy p {
  margin: 24px 0 0;
  font: 400 1.18rem/1.58 "Crimson Text", serif;
}

.sr-machine-copy .sr-credit-line {
  margin-top: 34px;
  font: 400 .76rem/1.5 "Oswald", sans-serif;
  color: #9c7c45;
}

.sr-flow {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 13px;
  counter-reset: process;
}

.sr-flow-step {
  position: relative;
  min-height: 235px;
  padding: 28px 23px 24px;
  border: 1px solid var(--sr-line);
  background: var(--sr-panel);
  counter-increment: process;
}

.sr-flow-step:not(:last-child)::after {
  content: "→";
  position: absolute;
  z-index: 2;
  right: -19px;
  top: 50%;
  width: 24px;
  color: var(--sr-amber);
  font: 400 1.65rem/1 "Oswald", sans-serif;
}

.sr-flow-step::before {
  content: "0" counter(process);
  display: block;
  margin-bottom: 32px;
  font: 500 .74rem/1 "Oswald", sans-serif;
  letter-spacing: .14em;
  color: var(--sr-amber);
}

.sr-flow-step h3 {
  font: 400 1.55rem/.98 "Bebas Neue", sans-serif;
  letter-spacing: .03em;
}

.sr-flow-step p {
  margin: 15px 0 0;
  font: 400 1rem/1.42 "Crimson Text", serif;
}

.sr-return {
  display: flex;
  align-items: center;
  gap: 22px;
  margin-top: 13px;
  padding: 20px 25px;
  border: 1px solid var(--sr-line);
  color: var(--sr-cream);
  font: 400 1.1rem/1.45 "Crimson Text", serif;
}

.sr-return strong {
  flex: 0 0 auto;
  font: 500 .76rem/1 "Oswald", sans-serif;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--sr-amber);
}

.sr-tracks {
  display: grid;
  grid-template-columns: minmax(280px, .85fr) minmax(0, 1.15fr);
  gap: 64px;
  align-items: center;
}

.sr-detail-photo {
  margin: 0;
  border: 1px solid var(--sr-line);
  background: var(--sr-panel);
}
.sr-detail-photo img {
  display: block;
  width: 100%;
  aspect-ratio: 1.16 / 1;
  object-fit: cover;
}
.sr-detail-photo figcaption {
  padding: 16px 19px;
  font: 400 .78rem/1.45 "Oswald", sans-serif;
  color: #a98850;
}

.sr-tape-diagram {
  display: grid;
  gap: 18px;
}

.sr-tape-strip {
  position: relative;
  display: grid;
  grid-template-columns: 72px 1fr;
  align-items: center;
  min-height: 90px;
  border: 1px solid var(--sr-line);
  background: linear-gradient(90deg, #1b1006, #0f0a06);
}

.sr-tape-strip strong {
  align-self: stretch;
  display: grid;
  place-items: center;
  border-right: 1px solid var(--sr-line);
  font: 400 2rem/1 "Bebas Neue", sans-serif;
  color: var(--sr-amber);
}

.sr-tape-strip span {
  padding: 17px 24px;
  font: 400 1.08rem/1.35 "Crimson Text", serif;
  color: var(--sr-cream);
}

.sr-tape-note {
  margin: 28px 0 0;
  font: 400 1.15rem/1.58 "Crimson Text", serif;
}

.sr-control-board {
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  gap: 8px;
  padding: 28px;
  border: 1px solid var(--sr-line);
  background: #100b07;
}

.sr-drawbar {
  min-width: 0;
  text-align: center;
}

.sr-drawbar b {
  display: block;
  margin-bottom: 12px;
  font: 500 .72rem/1 "Oswald", sans-serif;
  color: var(--sr-cream);
}

.sr-drawbar-track {
  height: 190px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 7px;
  border: 1px solid var(--sr-line);
  background: #070503;
}

.sr-drawbar-track i {
  display: block;
  width: 65%;
  height: var(--level);
  background: linear-gradient(0deg, #d46e08, #f0bb42);
}

.sr-drawbar span {
  display: block;
  margin-top: 10px;
  font: 400 .7rem/1.2 "Oswald", sans-serif;
  color: #9c7c45;
}

.sr-patch {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.sr-module {
  min-height: 285px;
  padding: 28px;
  border: 1px solid var(--sr-line);
  background:
    radial-gradient(circle at 78% 24%, #d88414 0 4px, transparent 5px),
    linear-gradient(145deg, #17110b, #0d0906);
}

.sr-module strong {
  display: block;
  font: 500 .75rem/1.2 "Oswald", sans-serif;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--sr-amber);
}

.sr-module h3 {
  margin-top: 45px;
  font-size: 2.25rem;
}

.sr-module p {
  margin: 17px 0 0;
  font: 400 1.04rem/1.48 "Crimson Text", serif;
}

.sr-patch-line {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 14px;
  color: var(--sr-cream);
  font: 400 1rem/1.45 "Crimson Text", serif;
}

.sr-patch-line::before {
  content: "";
  width: 55px;
  height: 2px;
  flex: 0 0 auto;
  background: var(--sr-amber);
}

.sr-shape-map {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.sr-shape {
  min-height: 230px;
  padding: 27px;
  border: 1px solid var(--sr-line);
  background: var(--sr-panel);
}

.sr-wave {
  position: relative;
  height: 72px;
  margin: 28px 0 25px;
  overflow: hidden;
  border-bottom: 1px solid rgba(246,220,160,.22);
}

.sr-wave::before {
  content: "";
  position: absolute;
  inset: 15px 0;
  opacity: .9;
}

.sr-wave.saw::before {
  background: linear-gradient(135deg, transparent 46%, var(--sr-amber) 47% 51%, transparent 52%) 0 0 / 44px 44px;
}

.sr-wave.square::before {
  background: linear-gradient(90deg, var(--sr-amber) 2px, transparent 2px 22px, var(--sr-amber) 22px 24px, transparent 24px) 0 0 / 44px 42px;
  border-top: 2px solid var(--sr-amber);
}

.sr-wave.triangle::before {
  background: linear-gradient(135deg, transparent 47%, var(--sr-amber) 48% 51%, transparent 52%) 0 0 / 42px 42px,
              linear-gradient(45deg, transparent 47%, var(--sr-amber) 48% 51%, transparent 52%) 21px 0 / 42px 42px;
}

.sr-wave.sine::before {
  border: 2px solid var(--sr-amber);
  border-width: 2px 0;
  border-radius: 50%;
  transform: skewX(-20deg) scaleY(.55);
}

.sr-shape h3 { font-size: 1.8rem; }
.sr-shape p {
  margin: 14px 0 0;
  font: 400 1rem/1.45 "Crimson Text", serif;
}

.sr-arc-map {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0;
  border: 1px solid var(--sr-line);
  background: var(--sr-panel);
}

.sr-arc-stage {
  position: relative;
  min-height: 235px;
  padding: 27px 22px;
  border-right: 1px solid var(--sr-line);
}

.sr-arc-stage:last-child { border-right: 0; }
.sr-arc-stage::before {
  content: "";
  position: absolute;
  left: 22px;
  right: 22px;
  bottom: calc(34px + var(--rise));
  height: 3px;
  background: var(--sr-amber);
}
.sr-arc-stage span {
  font: 500 .72rem/1.2 "Oswald", sans-serif;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--sr-amber);
}
.sr-arc-stage h3 {
  margin-top: 35px;
  font-size: 1.7rem;
}
.sr-arc-stage p {
  margin: 14px 0 70px;
  font: 400 .98rem/1.4 "Crimson Text", serif;
}

.sr-motif-map {
  display: grid;
  gap: 14px;
}
.sr-motif-row {
  display: grid;
  grid-template-columns: 155px 1fr;
  min-height: 100px;
  border: 1px solid var(--sr-line);
  background: var(--sr-panel);
}
.sr-motif-row strong {
  display: grid;
  place-items: center;
  padding: 20px;
  border-right: 1px solid var(--sr-line);
  font: 500 .75rem/1.25 "Oswald", sans-serif;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--sr-amber);
}
.sr-motif-events {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  align-items: center;
  gap: 10px;
  padding: 20px;
}
.sr-motif-events i {
  display: block;
  height: 8px;
  border: 1px solid #9f681e;
}
.sr-motif-events i.on { background: var(--sr-amber); }
.sr-motif-events i.changed {
  height: 22px;
  background: transparent;
  border-color: var(--sr-cream);
}

.sr-concept-matrix {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.sr-concept-type {
  min-height: 260px;
  padding: 32px;
  border: 1px solid var(--sr-line);
  background: var(--sr-panel);
}
.sr-concept-type span {
  font: 500 .72rem/1.2 "Oswald", sans-serif;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--sr-amber);
}
.sr-concept-type h3 {
  margin-top: 38px;
  font-size: 2.5rem;
}
.sr-concept-type p {
  margin: 17px 0 0;
  font: 400 1.05rem/1.5 "Crimson Text", serif;
}

.sr-layer-stack {
  display: grid;
  gap: 10px;
  padding: 30px;
  border: 1px solid var(--sr-line);
  background: var(--sr-panel);
}

.sr-layer {
  display: grid;
  grid-template-columns: 155px 1fr;
  align-items: center;
  gap: 22px;
}

.sr-layer strong {
  font: 500 .72rem/1.2 "Oswald", sans-serif;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--sr-amber);
}

.sr-layer i {
  display: block;
  width: var(--span);
  height: 34px;
  margin-left: var(--offset, 0);
  border: 1px solid var(--sr-line);
  background: linear-gradient(90deg, rgba(213,113,8,.75), rgba(240,187,66,.16));
}

.sr-axis {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border: 1px solid var(--sr-line);
  background: var(--sr-panel);
}

.sr-axis-point {
  min-height: 190px;
  padding: 25px 20px;
  border-right: 1px solid var(--sr-line);
}
.sr-axis-point:last-child { border-right: 0; }
.sr-axis-point b {
  display: block;
  margin-bottom: 34px;
  font: 500 .72rem/1.2 "Oswald", sans-serif;
  letter-spacing: .13em;
  color: var(--sr-amber);
}
.sr-axis-point h3 { font-size: 1.7rem; }
.sr-axis-point p {
  margin: 13px 0 0;
  font: 400 .96rem/1.42 "Crimson Text", serif;
}

.sr-grid-4,
.sr-grid-3 {
  display: grid;
  gap: 16px;
}
.sr-grid-4 { grid-template-columns: repeat(4, 1fr); }
.sr-grid-3 { grid-template-columns: repeat(3, 1fr); }

.sr-card {
  min-height: 250px;
  padding: 30px;
  border: 1px solid var(--sr-line);
  background: var(--sr-panel);
}

.sr-card .sr-card-no {
  display: block;
  margin-bottom: 45px;
  font: 500 .74rem/1 "Oswald", sans-serif;
  letter-spacing: .16em;
  color: var(--sr-amber);
}

.sr-card h3 {
  font-size: 2rem;
  line-height: .98;
}

.sr-card p {
  margin: 17px 0 0;
  font: 400 1.04rem/1.52 "Crimson Text", serif;
}

.sr-timeline {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--sr-line);
}

.sr-era {
  padding: 34px 36px 38px 0;
  border-right: 1px solid var(--sr-line);
}
.sr-era + .sr-era { padding-left: 36px; }
.sr-era:last-child { border-right: 0; }
.sr-era time {
  display: block;
  margin-bottom: 22px;
  font: 500 .76rem/1 "Oswald", sans-serif;
  letter-spacing: .16em;
  color: var(--sr-amber);
}
.sr-era h3 { font-size: 2.5rem; }
.sr-era p {
  margin: 16px 0 0;
  font: 400 1.04rem/1.52 "Crimson Text", serif;
}

.sr-listening-card {
  display: flex;
  flex-direction: column;
  min-height: 330px;
  padding: 29px;
  border: 1px solid var(--sr-line);
  background: var(--sr-panel);
  color: inherit;
  text-decoration: none;
  transition: border-color .18s ease, transform .18s ease, background .18s ease;
}

.sr-listening-card:hover,
.sr-listening-card:focus-visible {
  border-color: #d7891e;
  background: var(--sr-panel-2);
  transform: translateY(-3px);
}

.sr-listening-card .sr-record {
  margin-bottom: auto;
  font: 500 .72rem/1.2 "Oswald", sans-serif;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--sr-amber);
}
.sr-listening-card h3 {
  margin-top: 48px;
  font-size: 2rem;
  line-height: .98;
}
.sr-listening-card p {
  margin: 18px 0 0;
  font: 400 1.03rem/1.48 "Crimson Text", serif;
}
.sr-listening-card .sr-open {
  margin-top: 24px;
  font: 500 .74rem/1.2 "Oswald", sans-serif;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--sr-cream);
}

.sr-compare {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--sr-line);
  background: var(--sr-panel);
}
.sr-compare th,
.sr-compare td {
  padding: 22px 24px;
  border: 1px solid var(--sr-line);
  text-align: left;
  vertical-align: top;
}
.sr-compare th {
  font: 500 .75rem/1.25 "Oswald", sans-serif;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--sr-amber);
}
.sr-compare td {
  font: 400 1.05rem/1.48 "Crimson Text", serif;
}
.sr-compare td:first-child {
  font-family: "Oswald", sans-serif;
  color: var(--sr-cream);
}

.sr-source-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.sr-source {
  display: block;
  min-height: 160px;
  padding: 26px;
  border: 1px solid var(--sr-line);
  color: inherit;
  text-decoration: none;
}
.sr-source strong {
  display: block;
  color: var(--sr-cream);
  font: 400 1.35rem/1.15 "Oswald", sans-serif;
}
.sr-source span {
  display: block;
  margin-top: 16px;
  font: 400 .96rem/1.45 "Crimson Text", serif;
}

.sr-faq details {
  border-top: 1px solid var(--sr-line);
  padding: 22px 0;
}
.sr-faq details:last-child { border-bottom: 1px solid var(--sr-line); }
.sr-faq summary {
  cursor: pointer;
  color: var(--sr-cream);
  font: 400 1.35rem/1.25 "Oswald", sans-serif;
}
.sr-faq p {
  max-width: 780px;
  margin: 18px 0 0;
  font: 400 1.08rem/1.55 "Crimson Text", serif;
}

@media (max-width: 900px) {
  .sr-hero { min-height: 660px; }
  .sr-hero-image { left: 25%; }
  .sr-facts { grid-template-columns: repeat(2, 1fr); }
  .sr-fact { border-bottom: 1px solid var(--sr-line); }
  .sr-section-head,
  .sr-machine,
  .sr-tracks { grid-template-columns: 1fr; gap: 34px; }
  .sr-machine-photo { min-height: 500px; border-right: 0; border-bottom: 1px solid var(--sr-line); }
  .sr-flow { grid-template-columns: 1fr 1fr; }
  .sr-flow-step:not(:last-child)::after { display: none; }
  .sr-grid-4 { grid-template-columns: 1fr 1fr; }
  .sr-grid-3,
  .sr-source-grid,
  .sr-patch,
  .sr-shape-map { grid-template-columns: 1fr 1fr; }
  .sr-arc-map { grid-template-columns: repeat(3, 1fr); }
  .sr-arc-stage:nth-child(3) { border-right: 0; }
  .sr-arc-stage:nth-child(-n+3) { border-bottom: 1px solid var(--sr-line); }
  .sr-axis { grid-template-columns: 1fr 1fr; }
  .sr-axis-point { border-bottom: 1px solid var(--sr-line); }
}

@media (max-width: 620px) {
  .sound-reference .sr-wrap { width: min(100% - 30px, 1180px); }
  .sr-hero { min-height: 720px; align-items: end; }
  .sr-hero::after {
    background: linear-gradient(0deg, #070503 7%, rgba(5, 3, 2, .9) 48%, rgba(5, 3, 2, .16) 100%);
  }
  .sr-hero-image { inset: 0; }
  .sr-hero-image img { object-position: 55% 35%; }
  .sr-hero-content { padding-block: 100px 60px; }
  .sr-breadcrumb { margin-bottom: 210px; }
  .sr-hero h1 { font-size: clamp(4.8rem, 25vw, 7rem); }
  .sr-photo-credit { display: none; }
  .sr-facts { grid-template-columns: 1fr 1fr; }
  .sr-fact { padding: 20px 16px; }
  .sr-section { padding-block: 70px; }
  .sr-section-head { margin-bottom: 38px; }
  .sr-section h2 { font-size: clamp(3.2rem, 16vw, 4.8rem); }
  .sr-machine-photo { min-height: 430px; }
  .sr-flow,
  .sr-grid-4,
  .sr-grid-3,
  .sr-source-grid,
  .sr-patch,
  .sr-shape-map,
  .sr-concept-matrix,
  .sr-timeline { grid-template-columns: 1fr; }
  .sr-arc-map { grid-template-columns: 1fr; }
  .sr-arc-stage,
  .sr-arc-stage:nth-child(3) {
    min-height: 200px;
    border-right: 0;
    border-bottom: 1px solid var(--sr-line);
  }
  .sr-arc-stage:last-child { border-bottom: 0; }
  .sr-motif-row { grid-template-columns: 1fr; }
  .sr-motif-row strong {
    place-items: start;
    border-right: 0;
    border-bottom: 1px solid var(--sr-line);
  }
  .sr-axis { grid-template-columns: 1fr; }
  .sr-axis-point {
    min-height: 0;
    border-right: 0;
  }
  .sr-layer { grid-template-columns: 1fr; gap: 10px; }
  .sr-layer i {
    max-width: 100%;
    margin-left: 0;
  }
  .sr-control-board {
    grid-template-columns: repeat(9, 70px);
    overflow-x: auto;
  }
  .sr-timeline { border-top: 0; }
  .sr-era,
  .sr-era + .sr-era {
    padding: 28px 0;
    border-top: 1px solid var(--sr-line);
    border-right: 0;
  }
  .sr-compare-wrap { overflow-x: auto; }
  .sr-compare { min-width: 720px; }
}