/* SOUNDMATTER: a cabinet of impossible materials.
   Colour: the AW1 "New Gothic Depth" dark neutrals (thematic skill), near-black graphite with bone text; the brand
   stays neutral and colour comes from each specimen (--matter, lifted to 4.5:1 on the surface at build time).
   Type: a geometric grotesk for the wordmark and names, a restrained mono for scientific metadata. */
/* Fonts are served with the site, subset to Latin (SIL Open Font License, see fonts/OFL-*.txt).
   Roles:  Manrope            the SOUNDMATTER lockup only (Medium wordmark, Light descriptor)
           Schibsted Grotesk  display: Matter names, sources, the statement and the hero question
           Instrument Sans    reading and controls: descriptions, specimen names, buttons, filters, navigation
           IBM Plex Mono      scientific metadata: catalog numbers, states, roles, lengths, counts */
@font-face { font-family: "Manrope"; src: url("fonts/manrope-wght.woff2") format("woff2"); font-weight: 200 800; font-style: normal; font-display: swap; }
@font-face { font-family: "Schibsted Grotesk"; src: url("fonts/schibsted-grotesk-wght.woff2") format("woff2"); font-weight: 400 900; font-style: normal; font-display: swap; }
@font-face { font-family: "Instrument Sans"; src: url("fonts/instrument-sans-wdth-wght.woff2") format("woff2"); font-weight: 400 700; font-stretch: 75% 100%; font-style: normal; font-display: swap; }
@font-face { font-family: "IBM Plex Mono"; src: url("fonts/ibm-plex-mono-latin-400-normal.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "IBM Plex Mono"; src: url("fonts/ibm-plex-mono-latin-500-normal.woff2") format("woff2"); font-weight: 500; font-style: normal; font-display: swap; }

:root {
  --surface: #141310;            /* page: deep mineral black */
  --surface-container: #211F1C;  /* panels */
  --surface-variant: #484742;    /* hairlines only: 2.0:1, never text or control borders */
  --on-surface: #E6E2DC;         /* 14.4:1 on surface */
  --on-surface-variant: #CAC6C0; /* 10.9:1 on surface, 9.7:1 on container */
  --outline: #83807B;            /* control borders and quiet text on surface only (4.7:1); 4.2:1 on container */
  --focus: #FFFFFF;
  --matter: var(--on-surface);
  --wordmark: "Manrope", ui-sans-serif, system-ui, sans-serif;
  --display: "Schibsted Grotesk", ui-sans-serif, system-ui, sans-serif;
  --text: "Instrument Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --gutter: clamp(16px, 4vw, 56px);
  /* Lockup: SOUNDMATTER in Manrope Medium, "Imagined Physics" in Manrope Light, smaller and wider tracked. */
  --wordmark-weight: 500;
  --descriptor-weight: 300;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--surface); color: var(--on-surface); font: 400 17px/1.6 var(--text);
       -webkit-font-smoothing: antialiased; overflow-x: hidden; }
a { color: inherit; }
img { display: block; max-width: 100%; }
button { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: var(--gutter); top: 12px; z-index: 10; background: var(--on-surface); color: var(--surface); padding: 8px 12px; }

/* Metadata: the secondary, scientific voice */
.meta { font: 400 12px/1.7 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--on-surface-variant); }
.meta b { font-weight: 500; color: var(--on-surface); }
.meta .k { color: var(--outline); }

/* Header and lockup */
.top { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 22px var(--gutter);
       position: relative; z-index: 2; }
.lockup { display: inline-grid; gap: 4px; text-decoration: none; }
.lockup .word { font: var(--wordmark-weight) 15px/1 var(--wordmark); letter-spacing: .34em; text-transform: uppercase; margin-right: -.34em; }
.lockup .desc { font: var(--descriptor-weight) 11px/1 var(--wordmark); letter-spacing: .38em; text-transform: uppercase; color: var(--on-surface-variant); }
.lockup img { height: 28px; width: auto; }
.top nav { display: flex; gap: 28px; }
.top nav a { font: 500 13px/1 var(--text); letter-spacing: .1em; text-transform: uppercase; text-decoration: none;
             color: var(--on-surface-variant); padding: 14px 0; }
.top nav a:hover, .top nav a[aria-current="page"] { color: var(--on-surface); }

/* Hero: the specimen dominates */
.home .top { justify-content: flex-end; }
.home .top .lockup { display: none; }
.hero { min-height: calc(100svh - 72px); display: grid; grid-template-rows: auto 1fr auto; justify-items: center;
        padding: 2vh var(--gutter) 8vh; text-align: center; }
.hero h1 { margin: 0; display: grid; gap: 14px; }
.hero h1 .word { font: var(--wordmark-weight) clamp(30px, 6.4vw, 84px)/1 var(--wordmark); letter-spacing: .26em; margin-right: -.26em; text-transform: uppercase; }
.hero h1 .desc { font: var(--descriptor-weight) clamp(11px, 1.1vw, 14px)/1 var(--wordmark); letter-spacing: .48em; margin-right: -.48em;
                 text-transform: uppercase; color: var(--on-surface-variant); }
.stage { position: relative; width: min(100%, 50svh, 720px); aspect-ratio: 1; margin: 4vh 0 5vh; align-self: center; }
.stage img { width: 100%; height: 100%; object-fit: cover; border-radius: 2px;
             transition: transform 1.6s cubic-bezier(.2, .7, .1, 1), filter 1.6s ease;
             transform: translate3d(var(--dx, 0), var(--dy, 0), 0) scale(var(--s, 1)); }
.stage.listening img { --s: 1.015; filter: contrast(1.04) brightness(1.04); }
.stage figcaption { position: absolute; left: 0; right: 0; bottom: -30px; }
.question { font: 400 clamp(19px, 2.2vw, 26px)/1.35 var(--display); letter-spacing: -.005em; max-width: 30ch; margin: 0 auto 18px; }
.hear { display: inline-flex; align-items: center; gap: 12px; min-height: 48px; padding: 0 26px; border: 1px solid var(--outline);
        border-radius: 999px; background: none; cursor: pointer; font: 600 12px/1 var(--text); letter-spacing: .18em;
        text-transform: uppercase; text-decoration: none; }
.hear:hover { border-color: var(--on-surface); }
.hear[aria-pressed="true"] { background: var(--on-surface); color: var(--surface); border-color: var(--on-surface); }
.now { min-height: 1.7em; margin: 14px 0 0; }
.now a { color: var(--matter); text-underline-offset: 3px; }

/* Statement */
.statement { padding: 6vh var(--gutter) 18vh; display: grid; justify-items: center; text-align: center; gap: 22px; }
.statement p { margin: 0; font: 400 clamp(26px, 3.6vw, 46px)/1.18 var(--display); max-width: 22ch; letter-spacing: -.015em; }
.statement p + p { max-width: 40ch; font: 400 clamp(16px, 1.4vw, 18px)/1.5 var(--text); color: var(--on-surface-variant); letter-spacing: 0; }

/* Method: low on the page, for whoever goes looking */
.method { padding: 0 var(--gutter) 16vh; }
.method .section-head { padding-left: 0; padding-right: 0; }
.method-body { display: grid; gap: 18px; max-width: 62ch; }
.method-body p { margin: 0; color: var(--on-surface-variant); }
.method-body .method-lead { font: 400 clamp(22px, 2.4vw, 30px)/1.25 var(--display); color: var(--on-surface); letter-spacing: -.01em; }

/* The free offer: a plain link beside Hear matter, a badge on each free plate, a cabinet filter */
.hero-actions { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 14px 22px; }
.free-link { font: 500 14px/1.4 var(--text); color: var(--on-surface); text-underline-offset: 4px; min-height: 48px; display: inline-flex; align-items: center; }
.free-link:hover { color: var(--matter); }
.plate { position: relative; }
.badge { position: absolute; left: 12px; top: 12px; padding: 6px 10px; border-radius: 2px; background: var(--surface); color: var(--on-surface);
         font: 600 11px/1 var(--text); letter-spacing: .14em; text-transform: uppercase; }
.cabinet-filter { padding: 0 var(--gutter); margin: -16px 0 36px; }
.chip .n { color: inherit; opacity: .7; font-variant-numeric: tabular-nums; }
.also { font: 500 14px/1.4 var(--text); text-underline-offset: 4px; }
.more { padding: 0 0 14vh; }
.cabinet.small { grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr)); gap: 56px 40px; padding-bottom: 0; }
.cabinet.small h3 { font-size: clamp(22px, 2vw, 26px); }

/* Cabinet */
.section-head { display: flex; justify-content: space-between; align-items: baseline; gap: 20px; padding: 0 var(--gutter);
                margin: 0 0 40px; border-top: 1px solid var(--surface-variant); padding-top: 22px; }
.section-head h2 { margin: 0; font: 400 12px/1 var(--mono); letter-spacing: .16em; text-transform: uppercase; }
.cabinet { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 360px), 1fr)); gap: 80px 48px;
           padding: 0 var(--gutter) 16vh; margin: 0; list-style: none; }
.drawer a { display: grid; gap: 18px; text-decoration: none; }
.drawer .plate { aspect-ratio: 1; overflow: hidden; background: var(--surface-container); border-radius: 2px; }
.drawer .plate img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.4s cubic-bezier(.2, .7, .1, 1); }
.drawer a:hover .plate img { transform: scale(1.03); }
.drawer h3 { margin: 0; font: 400 clamp(26px, 2.6vw, 34px)/1.08 var(--display); letter-spacing: .03em; text-transform: uppercase; }
.drawer .line { display: flex; justify-content: space-between; gap: 16px; align-items: baseline; }
.drawer .src { font: 400 15px/1.5 var(--text); color: var(--on-surface-variant); margin: 0; }
.price { font: 600 12px/1 var(--text); font-variant-numeric: tabular-nums; letter-spacing: .14em; text-transform: uppercase; white-space: nowrap; }
.price.free { color: var(--matter); }

/* Matter view */
.matter { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: clamp(32px, 6vw, 96px);
          padding: 4vh var(--gutter) 10vh; align-items: start; }
.matter .plate { position: sticky; top: 24px; aspect-ratio: 1; background: var(--surface-container); border-radius: 2px; overflow: hidden; }
.matter .plate img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.6s cubic-bezier(.2, .7, .1, 1); }
.matter .plate.listening img { transform: scale(1.02); }
.record { display: grid; gap: 34px; }
.fusion { margin: -14px 0 0; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.fusion.source { font: 400 clamp(19px, 1.9vw, 24px)/1.3 var(--display); color: var(--on-surface-variant); }
.fusion .x { color: var(--outline); }
.matter h1 { margin: 0; font: 400 clamp(38px, 5.6vw, 76px)/1 var(--display); letter-spacing: .02em; text-transform: uppercase; }
.matter .about { margin: 0; max-width: 56ch; color: var(--on-surface-variant); }
.count { font: 400 13px/1 var(--mono); letter-spacing: .16em; text-transform: uppercase; color: var(--matter); }

.acquire { border: 1px solid var(--surface-variant); border-radius: 4px; padding: 22px; display: grid; gap: 16px; background: var(--surface-container); }
.acquire .meta { color: var(--on-surface-variant); }
.acquire .amount { font: 400 34px/1 var(--display); font-variant-numeric: tabular-nums; }
.formats { display: grid; gap: 8px; margin: 0; padding: 0; list-style: none; }
.btn { display: flex; justify-content: space-between; align-items: center; gap: 16px; min-height: 48px; padding: 0 18px;
       border: 1px solid var(--on-surface-variant); border-radius: 3px; text-decoration: none; font: 500 14px/1.2 var(--text); }
.btn small { font: 400 11px/1 var(--mono); letter-spacing: .08em; color: var(--on-surface-variant); }
.btn:hover { background: var(--on-surface); color: var(--surface); }
.btn:hover small { color: var(--surface); }
.btn.primary { background: var(--on-surface); color: var(--surface); border-color: var(--on-surface); justify-content: center;
               font: 600 12px/1 var(--text); letter-spacing: .18em; text-transform: uppercase; }
.btn[aria-disabled="true"] { opacity: 1; background: none; color: var(--on-surface-variant); border-style: dashed; cursor: default; }

/* Specimen browser */
.listen { margin: -16px 0 24px; font: 400 clamp(19px, 1.8vw, 22px)/1.3 var(--display); }
.browser { padding: 0 var(--gutter) 16vh; }
.filters { display: flex; flex-wrap: wrap; gap: 8px 10px; margin: 0 0 28px; }
.chip { min-height: 36px; padding: 0 14px; border: 1px solid var(--outline); border-radius: 999px; background: none; cursor: pointer;
        font: 500 12px/1 var(--text); letter-spacing: .08em; text-transform: uppercase; color: var(--on-surface-variant); }
.chip[aria-pressed="true"] { background: var(--on-surface); border-color: var(--on-surface); color: var(--surface); }
.specimens { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--surface-variant); }
.specimen { position: relative; display: grid; grid-template-columns: 48px 44px minmax(0, 2.2fr) minmax(0, 1fr) minmax(0, 1.4fr) 64px;
            align-items: center; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--surface-variant); }
.specimen::after { content: ""; position: absolute; left: 0; bottom: -1px; height: 1px; width: calc(var(--p, 0) * 100%); background: var(--matter); }
.play { width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--outline); background: none; cursor: pointer;
        display: grid; place-items: center; }
.play:hover { border-color: var(--on-surface); }
.play svg { width: 14px; height: 14px; }
.specimen.playing .play { background: var(--on-surface); color: var(--surface); border-color: var(--on-surface); }
.specimen .n { font: 400 12px/1 var(--mono); color: var(--outline); letter-spacing: .06em; }
.specimen .name { font: 500 16px/1.35 var(--text); overflow-wrap: anywhere; }
.specimen .role, .specimen .beh, .specimen .len { font: 400 11px/1.5 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--on-surface-variant); }
.specimen .len { text-align: right; font-variant-numeric: tabular-nums; }
.empty { color: var(--on-surface-variant); padding: 28px 0; }

.foot { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; padding: 28px var(--gutter) 40px;
        border-top: 1px solid var(--surface-variant); }

@media (max-width: 900px) {
  .matter { grid-template-columns: 1fr; }
  .matter .plate { position: static; }
  .specimen { grid-template-columns: 44px minmax(0, 1fr) auto; gap: 4px 14px; }
  .specimen .play { grid-row: span 2; }
  .specimen .n, .specimen .beh { display: none; }
  .specimen .role { grid-column: 2; }
  .specimen .len { grid-column: 3; grid-row: 1 / span 2; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .top nav { gap: 18px; }
  .lockup .word { font-size: 13px; letter-spacing: .28em; }
  .cabinet { gap: 64px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

main, .foot { max-width: 1680px; margin-left: auto; margin-right: auto; }