/* ============================================================================
   RaveFoundry marketing site — styles
   Ported verbatim from marketing/ravefoundry-overview.html <style> block,
   plus the site-shell additions at the end (skip link, error UI, h1 heads).
   ============================================================================ */

  :root {
    color-scheme: dark; /* dark-only site: UA renders form controls, scrollbars & the load canvas dark */
    --font-mono: ui-monospace, "SF Mono", "Cascadia Code", "Roboto Mono", Menlo, Consolas, monospace;
    --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

    /* brand neon (from the RaveFoundry wordmark: 7-stop pink→lime) */
    --grad: linear-gradient(90deg,#E912AB 0%,#F116D9 18%,#9543F9 38%,#26B8FC 55%,#00F0FA 72%,#8BF547 87%,#B4EC21 100%);

    --bg: #0A0B10;
    --bg-2: #0D0F16;
    --surface: #12141D;
    --surface-2: #171A25;
    --row-alt: #161925;
    --border: #262b3b;
    --border-soft: #1e2331;
    --text: #E7EAF3;
    --muted: #888FA6;
    --faint: #5c6277;
    --accent: #2BD9E0;      /* app SONG cyan */
    --accent-2: #A265FF;    /* logo violet */
    --spark: #FF8C42;       /* app STEP orange, used sparingly */
    --ok: #4FD69C;
    --ok-bg: rgba(79,214,156,0.10);
    --soon: #C9A6FF;
    --soon-bg: rgba(169,139,255,0.10);
    --logo-glow: 0 0 30px rgba(38,184,252,0.30);
    --shadow: 0 1px 0 rgba(255,255,255,0.03) inset, 0 18px 40px -24px rgba(0,0,0,0.8);
  }
  /* Dark-only site: the light-mode (prefers-color-scheme) and data-theme
     overrides were intentionally removed — the base :root above is the sole theme. */

  * { box-sizing: border-box; }
  body {
    margin: 0;
    background:
      radial-gradient(900px 460px at 50% -6%, rgba(149,67,249,0.14), transparent 62%),
      radial-gradient(700px 380px at 84% 4%, rgba(43,217,224,0.10), transparent 60%),
      var(--bg);
    color: var(--text);
    font-family: var(--font-sans);
    line-height: 1.62;
    -webkit-font-smoothing: antialiased;
  }
  .wrap { max-width: 1000px; margin: 0 auto; padding: 0 24px; }
  a { color: var(--accent); text-decoration: none; }
  a:hover { text-decoration: underline; }

  .ic { width: 1em; height: 1em; flex: 0 0 auto; }
  .eyebrow {
    font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.22em;
    text-transform: uppercase; color: var(--accent); margin: 0 0 12px;
  }

  /* ---------- hero ---------- */
  header.hero { padding: 70px 0 44px; border-bottom: 1px solid var(--border-soft); }
  .brandline { display: flex; align-items: center; gap: 10px; margin-bottom: 26px; }
  .brandline .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--grad); box-shadow: 0 0 14px var(--accent); }
  .brandline .co { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--muted); }

  h1.wordmark { margin: 6px 0 0; line-height: 1; }
  .logo { width: min(560px, 90%); height: auto; display: block; filter: drop-shadow(var(--logo-glow)); }

  .tagline {
    font-size: clamp(1.15rem, 2.4vw, 1.5rem); font-weight: 550; margin: 26px 0 0;
    max-width: 30ch; text-wrap: balance;
  }
  .lede { color: var(--muted); font-size: 1.03rem; max-width: 62ch; margin: 14px 0 0; }

  /* hero spec chips */
  .hero-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
  .chip {
    display: inline-flex; align-items: center; gap: 8px;
    font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.01em;
    padding: 8px 13px; border-radius: 999px; border: 1px solid var(--border);
    background: var(--surface); color: var(--text);
  }
  .chip .ic { font-size: 15px; color: var(--accent); }
  .chip b { font-weight: 700; }

  /* spectrum bar */
  .spectrum { display: flex; align-items: flex-end; gap: 3px; height: 60px; margin: 32px 0 4px; opacity: 0.95;
    filter: drop-shadow(0 0 6px color-mix(in srgb, var(--accent) 34%, transparent)); }
  .spectrum i {
    flex: 1 1 auto; min-width: 2px; height: 100%;
    background: linear-gradient(180deg, var(--accent-2) 0%, color-mix(in srgb, var(--accent-2) 40%, var(--accent)) 45%, var(--accent) 100%);
    border-radius: 2px 2px 0 0; transform-origin: bottom; transform: scaleY(var(--h,0.3));
    opacity: 0.9; animation: eq 1.9s ease-in-out infinite alternate; animation-delay: var(--d,0s);
  }
  @keyframes eq { from { transform: scaleY(var(--h,0.3)); } to { transform: scaleY(var(--h2,0.8)); } }
  @media (prefers-reduced-motion: reduce) { .spectrum i { animation: none; } }

  /* stat strip */
  .stats {
    display: grid; grid-template-columns: repeat(5, 1fr);
    border: 1px solid var(--border); border-radius: 12px; margin-top: 32px;
    overflow: hidden; background: var(--surface); box-shadow: var(--shadow);
  }
  .stats div { padding: 18px 16px; border-right: 1px solid var(--border-soft); position: relative; }
  .stats div:last-child { border-right: 0; }
  .stats .si { display: block; width: 19px; height: 19px; color: var(--muted); margin-bottom: 9px; }
  .stats .n { display: block; font-family: var(--font-mono); font-size: 1.5rem; font-weight: 700; font-variant-numeric: tabular-nums; letter-spacing: -0.02em; }
  .stats .k { display: block; font-size: 0.72rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.09em; margin-top: 3px; }
  .stats .hot { background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 12%, transparent), transparent 70%); }
  .stats .hot::before { content:""; position:absolute; left:0; top:0; width:100%; height:2px; background: var(--grad); }
  .stats .hot .si, .stats .hot .n { color: var(--accent); }
  .stats .hot .n { font-size: 1.62rem; }
  @media (max-width: 760px) { .stats { grid-template-columns: repeat(2,1fr); } .stats div:nth-child(even){border-right:0;} }

  /* ---------- sections ---------- */
  section { padding: 54px 0; border-bottom: 1px solid var(--border-soft); }
  .sec-head { margin-bottom: 28px; }
  .sec-head h2 { font-size: clamp(1.4rem,3vw,1.9rem); margin: 0; letter-spacing: -0.01em; text-wrap: balance; }
  .sec-head p { color: var(--muted); margin: 10px 0 0; max-width: 64ch; }

  .diff { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; }
  @media (max-width: 760px){ .diff { grid-template-columns: 1fr; } }
  .card {
    background: var(--surface); border: 1px solid var(--border); border-radius: 14px;
    padding: 22px; box-shadow: var(--shadow); position: relative; overflow: hidden;
  }
  .card::before { content:""; position:absolute; left:0; top:0; height:3px; width:100%; background: var(--grad); opacity: 0.95; }
  .card .dic {
    width: 30px; height: 30px; color: var(--accent); margin: 6px 0 12px;
    display: grid; place-items: center; border-radius: 9px;
    background: color-mix(in srgb, var(--accent) 12%, transparent);
    border: 1px solid color-mix(in srgb, var(--accent) 28%, transparent);
    padding: 6px;
  }
  .card h3 { margin: 0 0 8px; font-size: 1.06rem; font-family: var(--font-mono); letter-spacing: -0.01em; }
  .card p { margin: 0; color: var(--muted); font-size: 0.94rem; }

  /* ---------- feature tables ---------- */
  .cat { margin-top: 38px; }
  .cat:first-of-type { margin-top: 0; }
  .cat-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }
  .cat-head .t { display: flex; align-items: center; gap: 12px; }
  .cix {
    width: 34px; height: 34px; flex: 0 0 auto; color: var(--accent);
    display: grid; place-items: center; border-radius: 9px; padding: 7px;
    background: color-mix(in srgb, var(--accent) 11%, transparent);
    border: 1px solid color-mix(in srgb, var(--accent) 26%, transparent);
  }
  .cat-num { font-family: var(--font-mono); font-size: 0.72rem; color: var(--faint); font-variant-numeric: tabular-nums; }
  .cat-head h3 { margin: 0; font-size: 1.14rem; letter-spacing: -0.01em; }

  .tablecard { border: 1px solid var(--border); border-radius: 12px; overflow: hidden; background: var(--surface); box-shadow: var(--shadow); }
  .scroll { overflow-x: auto; }
  table { width: 100%; border-collapse: collapse; min-width: 520px; }
  th, td { text-align: left; padding: 13px 18px; vertical-align: top; border-bottom: 1px solid var(--border-soft); }
  tr:last-child td { border-bottom: 0; }
  thead th {
    font-family: var(--font-mono); font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.14em;
    color: var(--muted); background: var(--surface-2); font-weight: 600; border-bottom: 1px solid var(--border);
  }
  tbody tr:nth-child(even) td { background: var(--row-alt); }
  td.feat { font-family: var(--font-mono); font-size: 0.86rem; color: var(--text); white-space: nowrap; font-weight: 600; }
  td.desc { color: var(--muted); font-size: 0.94rem; }
  @media (max-width: 640px){ td.feat { white-space: normal; } }

  .pill { display: inline-flex; align-items: center; gap: 6px; font-family: var(--font-mono); font-size: 0.64rem; letter-spacing: 0.12em; text-transform: uppercase; padding: 4px 9px; border-radius: 999px; white-space: nowrap; }
  .pill.ship { color: var(--ok); background: var(--ok-bg); border: 1px solid color-mix(in srgb, var(--ok) 35%, transparent); }
  .pill.soon { color: var(--soon); background: var(--soon-bg); border: 1px solid color-mix(in srgb, var(--soon) 40%, transparent); }
  .pill::before { content:""; width:6px; height:6px; border-radius:50%; background: currentColor; }
  .comingcard { border-color: color-mix(in srgb, var(--accent-2) 30%, var(--border)); }

  /* ---------- footer ---------- */
  footer { padding: 42px 0 64px; }
  .vbar { height: 4px; border-radius: 4px; background: var(--grad); margin-bottom: 26px; opacity: 0.9; }
  .foot { display:flex; justify-content: space-between; align-items:center; gap:16px; flex-wrap: wrap; color: var(--muted); font-size: 0.86rem; }
  .foot .fm { font-family: var(--font-mono); letter-spacing: 0.05em; color: var(--text); }
  .copyright { margin: 18px 0 0; font-size: 0.74rem; color: var(--faint); letter-spacing: 0.02em; }

  /* ---------- gallery + lightbox ---------- */
  .gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
  @media (max-width: 720px){ .gallery { grid-template-columns: 1fr; } }
  .shot { position: relative; border: 1px solid var(--border); border-radius: 12px; overflow: hidden;
    background: var(--surface); cursor: pointer; box-shadow: var(--shadow); aspect-ratio: 16 / 10;
    padding: 0; text-align: left; transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
    opacity: 0; animation: shotIn .5s ease forwards; }
  .shot:nth-child(2){ animation-delay: .08s; } .shot:nth-child(3){ animation-delay: .16s; }
  @keyframes shotIn { to { opacity: 1; } }
  .shot img { width: 100%; height: 100%; object-fit: cover; object-position: top left; display: block; }
  .shot:hover { transform: translateY(-3px);
    border-color: color-mix(in srgb, var(--accent) 55%, var(--border)); box-shadow: 0 14px 32px -18px rgba(0,0,0,.75); }
  .shot:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
  .shot .cap { position: absolute; left: 0; right: 0; bottom: 0; padding: 26px 13px 11px;
    font-size: 0.8rem; color: var(--text); display: flex; align-items: center; justify-content: space-between; gap: 8px;
    background: linear-gradient(to top, rgba(8,9,14,0.94), rgba(8,9,14,0)); }
  .shot .exp { color: var(--accent); font-family: var(--font-mono); font-size: .72rem; opacity: 0; transition: opacity .18s ease; white-space: nowrap; }
  .shot:hover .exp, .shot:focus-visible .exp { opacity: 1; }
  .lb { position: fixed; inset: 0; z-index: 200; display: none; align-items: center; justify-content: center;
    background: rgba(6,7,11,0.92); padding: 5vh 5vw; opacity: 0; transition: opacity .22s ease; }
  .lb.open { display: flex; opacity: 1; }
  .lb img { max-width: 92vw; max-height: 84vh; border-radius: 10px; border: 1px solid var(--border);
    box-shadow: 0 30px 90px -20px rgba(0,0,0,.9); }
  .lb-cap { position: absolute; bottom: 3vh; left: 0; right: 0; text-align: center; color: var(--muted);
    font-family: var(--font-mono); font-size: .82rem; padding: 0 12px; }
  .lb button { position: absolute; background: rgba(20,22,32,.72); border: 1px solid var(--border); color: var(--text);
    width: 44px; height: 44px; border-radius: 50%; cursor: pointer; font-size: 1.25rem; line-height: 1; display: grid; place-items: center; }
  .lb button:hover { border-color: var(--accent); color: var(--accent); }
  .lb-close { top: 3vh; right: 4vw; } .lb-prev { left: 2.5vw; top: 50%; transform: translateY(-50%); } .lb-next { right: 2.5vw; top: 50%; transform: translateY(-50%); }
  @media (prefers-reduced-motion: reduce){ .shot { animation: none; opacity: 1; } .lb { transition: none; } }

  /* ---------- preset hover table ---------- */
  .chip.haspop { position: relative; cursor: default; }
  .chip.haspop .caret { color: var(--muted); font-size: 0.7em; margin-left: 1px; }
  .chip.haspop:hover, .chip.haspop:focus-within { border-color: color-mix(in srgb, var(--accent) 55%, var(--border)); }
  .presetpop { position: absolute; top: calc(100% + 10px); left: 0; z-index: 80;
    width: min(600px, 88vw); max-height: 344px; overflow-y: auto;
    background: var(--surface); border: 1px solid var(--border); border-radius: 12px;
    box-shadow: 0 26px 64px -20px rgba(0,0,0,.72); padding: 14px 16px;
    opacity: 0; visibility: hidden; transform: translateY(-4px);
    transition: opacity .16s ease, transform .16s ease; text-align: left; }
  .chip.haspop:hover .presetpop, .chip.haspop:focus-within .presetpop { opacity: 1; visibility: visible; transform: translateY(0); }
  .presetpop h4 { margin: 0 0 10px; font-family: var(--font-mono); font-size: .72rem; letter-spacing: .14em;
    text-transform: uppercase; color: var(--accent); position: sticky; top: 0; }
  .presetpop .pg { display: grid; grid-template-columns: 96px 1fr; gap: 4px 14px; padding: 6px 0;
    border-top: 1px solid var(--border-soft); font-size: .82rem; line-height: 1.4; }
  .presetpop .pg:first-of-type { border-top: 0; }
  .presetpop .pgt { color: var(--text); font-weight: 600; font-family: var(--font-mono); font-size: .72rem; }
  .presetpop .pgn { color: var(--muted); }
  @media (max-width: 720px){ .presetpop { left: auto; right: 0; } }

  /* ---------- detail buttons + modal ---------- */
  .browsebar { display: flex; gap: 10px; flex-wrap: wrap; margin: 2px 0 12px; }
  .browse, .detail-link { font-family: var(--font-mono); letter-spacing: .02em; color: var(--accent);
    background: color-mix(in srgb, var(--accent) 10%, transparent); cursor: pointer;
    border: 1px solid color-mix(in srgb, var(--accent) 38%, transparent); border-radius: 999px;
    transition: background .15s ease, border-color .15s ease; }
  .browse { font-size: .76rem; padding: 6px 13px; }
  .detail-link { font-size: .72rem; padding: 3px 10px; margin-left: 8px; display: inline-block; white-space: nowrap; }
  .browse:hover, .detail-link:hover { background: color-mix(in srgb, var(--accent) 18%, transparent); border-color: var(--accent); }
  .browse:focus-visible, .detail-link:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
  .detail { position: fixed; inset: 0; z-index: 200; display: none; align-items: center; justify-content: center;
    background: rgba(6,7,11,0.9); padding: 5vh 5vw; opacity: 0; transition: opacity .2s ease; }
  .detail.open { display: flex; opacity: 1; }
  .detail-card { position: relative; background: var(--surface); border: 1px solid var(--border); border-radius: 14px;
    box-shadow: 0 30px 80px -20px rgba(0,0,0,.9); padding: 22px 24px; width: min(640px, 92vw); max-height: 82vh; overflow-y: auto; }
  .detail-card h4 { margin: 0 0 14px; font-family: var(--font-mono); font-size: .78rem; letter-spacing: .14em; text-transform: uppercase; color: var(--accent); }
  .detail-card .pg { display: grid; grid-template-columns: 128px 1fr; gap: 4px 14px; padding: 7px 0; border-top: 1px solid var(--border-soft); font-size: .86rem; line-height: 1.45; }
  .detail-card .pg:first-of-type { border-top: 0; }
  .detail-card .pgt { color: var(--text); font-weight: 600; font-family: var(--font-mono); font-size: .74rem; }
  .detail-card .pgn { color: var(--muted); }
  .detail-close { position: absolute; top: 12px; right: 14px; background: transparent; border: 0; color: var(--muted); font-size: 1.2rem; cursor: pointer; line-height: 1; }
  .detail-close:hover { color: var(--accent); }
  @media (max-width: 560px){ .detail-card .pg { grid-template-columns: 1fr; gap: 1px; } }
  .dhide { display: none; }

  /* ---------- vocal spotlight ---------- */
  .vlede strong { color: var(--text); }
  .vgrid { display: grid; grid-template-columns: repeat(auto-fit, minmax(238px, 1fr)); gap: 14px; }
  .vcard { position: relative; background: var(--surface); border: 1px solid var(--border); border-radius: 12px;
    padding: 17px 18px 16px; box-shadow: var(--shadow); overflow: hidden; }
  .vcard::before { content:""; position:absolute; left:0; top:0; bottom:0; width:3px;
    background: linear-gradient(180deg, var(--accent-2), var(--accent)); opacity:.9; }
  .vcard h4 { margin: 0 0 7px; font-family: var(--font-mono); font-size: .82rem; letter-spacing: -.01em;
    color: var(--text); display: flex; align-items: center; gap: 8px; }
  .vcard p { margin: 0; color: var(--muted); font-size: .89rem; line-height: 1.5; }
  .vcard .pill { margin-left: auto; }

  /* ---------- site-shell additions (not in the original artifact) ---------- */
  html { -webkit-text-size-adjust: 100%; }

  .skip-link {
    position: absolute; left: -9999px; top: 0; z-index: 300;
    background: var(--surface); color: var(--text);
    padding: 10px 16px; border: 1px solid var(--border); border-radius: 0 0 10px 0;
    font-family: var(--font-mono); font-size: 0.8rem;
  }
  .skip-link:focus { left: 0; }

  /* FocusOnNavigate programmatically moves focus to the page's <h1> (and #main)
     on load/navigation so screen readers announce the new page. Those targets get
     tabindex="-1" and are NOT keyboard-reachable, so the browser's focus-visible
     ring — a ~3px near-white box — only clutters the UI (most visibly, it boxes
     the logo in the hero <h1>). Suppress it; screen-reader focus movement is
     unaffected because it doesn't depend on the visible ring. */
  #main:focus, #main:focus-visible,
  h1[tabindex="-1"]:focus, h1[tabindex="-1"]:focus-visible { outline: none; }

  /* Error / 404 pages reuse the section-head styling with a real <h1>. */
  .sec-head h1 { font-size: clamp(1.4rem, 3vw, 1.9rem); margin: 0; letter-spacing: -0.01em; text-wrap: balance; }

  /* ---------- lime category accent (not in the original palette) ---------- */
  :root { --lime: #8BF547; }

  /* ---------- feature card grid (replaces the core-feature tables) ---------- */
  /* Per-category accent comes from --cat, set inline on each .cat block. */
  .cat .cix {
    color: var(--cat, var(--accent));
    background: color-mix(in srgb, var(--cat, var(--accent)) 11%, transparent);
    border-color: color-mix(in srgb, var(--cat, var(--accent)) 26%, transparent);
  }

  .fgrid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-top: 2px; }
  @media (max-width: 680px) { .fgrid { grid-template-columns: 1fr; } }

  .fcard {
    position: relative; background: var(--surface); border: 1px solid var(--border);
    border-radius: 12px; padding: 15px 17px 15px 19px; box-shadow: var(--shadow);
    overflow: hidden; transition: transform .16s ease, border-color .16s ease, box-shadow .16s ease;
  }
  .fcard::before {
    content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
    background: var(--cat, var(--accent)); opacity: .85;
  }
  .fcard:hover {
    transform: translateY(-2px);
    border-color: color-mix(in srgb, var(--cat, var(--accent)) 50%, var(--border));
    box-shadow: 0 14px 30px -20px rgba(0, 0, 0, .7);
  }
  .fcard h4 {
    margin: 0 0 5px; font-family: var(--font-mono); font-size: .9rem; letter-spacing: -.01em;
    color: var(--text); display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  }
  .fcard h4 .fchk { width: 15px; height: 15px; color: var(--cat, var(--accent)); flex: 0 0 auto; }
  .fcard p { margin: 0; color: var(--muted); font-size: .9rem; line-height: 1.5; }
  .fcard .detail-link { margin: 6px 0 0 0; }
  /* Spotlight cards span the row and carry a faint tint of the category accent. */
  .fcard.wide {
    grid-column: 1 / -1;
    background: linear-gradient(115deg, color-mix(in srgb, var(--cat, var(--accent)) 8%, var(--surface)), var(--surface) 58%);
  }
  @media (max-width: 680px) { .fcard.wide { grid-column: auto; } }


  /* ---------- accordion (Sequencing & modulation) ---------- */
  .acc { border: 1px solid var(--border); border-radius: 12px; overflow: hidden; background: var(--surface); box-shadow: var(--shadow); }
  .acc-item + .acc-item { border-top: 1px solid var(--border-soft); }
  .acc-head {
    width: 100%; display: flex; align-items: center; gap: 12px; text-align: left; cursor: pointer;
    background: transparent; border: 0; color: var(--text); padding: 15px 18px;
    font-family: var(--font-mono); font-size: .9rem; letter-spacing: -.01em;
  }
  .acc-head:hover { background: var(--row-alt); }
  .acc-head:focus-visible { outline: 2px solid var(--cat, var(--accent)); outline-offset: -2px; }
  .acc-head .acc-i { width: 8px; height: 8px; border-radius: 50%; background: var(--cat, var(--accent)); flex: 0 0 auto; }
  .acc-head .acc-t { flex: 1 1 auto; }
  .acc-head .acc-caret { width: 16px; height: 16px; color: var(--muted); transition: transform .2s ease; flex: 0 0 auto; }
  .acc-item.open .acc-head .acc-caret { transform: rotate(90deg); color: var(--cat, var(--accent)); }
  .acc-body { overflow: hidden; max-height: 0; transition: max-height .24s ease; }
  .acc-item.open .acc-body { max-height: 340px; }
  .acc-body p { margin: 0; padding: 0 18px 16px 38px; color: var(--muted); font-size: .92rem; line-height: 1.55; }
  @media (prefers-reduced-motion: reduce) { .acc-body { transition: none; } .acc-head .acc-caret { transition: none; } }

  /* ---------- spec list (Mixing & mastering) ---------- */
  .speclist { display: grid; gap: 0; border-top: 1px solid var(--border-soft); }
  .spec { display: grid; grid-template-columns: 210px 1fr; gap: 8px 22px; padding: 15px 4px; border-bottom: 1px solid var(--border-soft); }
  .spec dt { margin: 0; font-family: var(--font-mono); font-size: .86rem; color: var(--text); font-weight: 600; position: relative; padding-left: 15px; }
  .spec dt::before { content: ""; position: absolute; left: 0; top: .4em; width: 6px; height: 6px; border-radius: 2px; background: var(--cat, var(--accent)); }
  .spec dd { margin: 0; color: var(--muted); font-size: .92rem; line-height: 1.55; }
  @media (max-width: 640px) { .spec { grid-template-columns: 1fr; gap: 4px; } }

  /* ---------- showcase tiles (Arrangement & energy) ---------- */
  .showtiles { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
  @media (max-width: 680px) { .showtiles { grid-template-columns: 1fr; } }
  .showtile {
    position: relative; border-radius: 14px; padding: 20px 20px 18px; box-shadow: var(--shadow);
    background: linear-gradient(150deg, color-mix(in srgb, var(--cat, var(--accent)) 9%, var(--surface)), var(--surface) 62%);
    border: 1px solid color-mix(in srgb, var(--cat, var(--accent)) 24%, var(--border));
  }
  .showtile .sti { width: 26px; height: 26px; color: var(--cat, var(--accent)); margin-bottom: 12px; display: block; }
  .showtile h4 { margin: 0 0 7px; font-size: 1.02rem; letter-spacing: -.01em; display: flex; align-items: center; gap: 9px; flex-wrap: wrap; }
  .showtile p { margin: 0; color: var(--muted); font-size: .93rem; line-height: 1.55; }
  .showmore { margin: 16px 0 0; color: var(--muted); font-size: .9rem; line-height: 1.6; }
  .showmore b { color: var(--text); font-family: var(--font-mono); font-weight: 600; font-size: .82rem; letter-spacing: -.01em; }

  /* ---------- demo-library song cloud ---------- */
  .songcloud { display: flex; flex-wrap: wrap; gap: 9px; margin: 6px 0 0; }

  /* ---------- changelog / "what's new" page ---------- */
  .changelog .sec-head .eyebrow a { color: var(--accent); }
  .logrel { padding: 26px 0; border-top: 1px solid var(--border-soft); }
  .logrel:first-of-type { border-top: 0; padding-top: 8px; }
  .logrel-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 2px; }
  .logrel-head h2 { margin: 0; font-size: clamp(1.3rem, 2.6vw, 1.6rem); letter-spacing: -0.01em; scroll-margin-top: 20px; }
  .logrel-name { color: var(--accent-2); font-family: var(--font-mono); font-size: 0.82rem; font-weight: 500; margin-left: 8px; }
  .logrel-date { font-family: var(--font-mono); font-size: 0.76rem; color: var(--faint); white-space: nowrap; }
  .logrel-sum { color: var(--muted); margin: 8px 0 18px; max-width: 70ch; }
  .loggrp { margin: 0 0 16px; }
  .loggrp h3 { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); margin: 0 0 9px; }
  .loggrp ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 10px; }
  .loggrp li { position: relative; padding-left: 18px; color: var(--muted); font-size: 0.95rem; line-height: 1.55; max-width: 76ch; }
  .loggrp li::before { content: ""; position: absolute; left: 2px; top: 0.6em; width: 6px; height: 6px; border-radius: 2px; background: var(--accent); opacity: 0.85; }
  .loggrp li b { color: var(--text); font-weight: 600; }
  .logrel-older { margin-top: 6px; padding-top: 24px; border-top: 1px solid var(--border-soft); }
  .logrel-older li::before { background: var(--faint); }

  /* Blazor unhandled-error toast — the framework flips this to display:block. */
  #blazor-error-ui {
    display: none; position: fixed; inset: auto 0 0 0; z-index: 1000;
    background: #2a0d12; color: #ffd9df; padding: 11px 18px;
    border-top: 1px solid #5b1e28; font-size: 0.9rem;
    box-shadow: 0 -2px 16px rgba(0,0,0,0.5);
  }
  #blazor-error-ui .reload { color: var(--accent); }
  #blazor-error-ui .dismiss { cursor: pointer; float: right; padding-left: 12px; }