@layer scaffold {
  :root {
    --bg: #101214;
    --panel: #17191d;
    --panel-edge: #2a2e35;
    --text: #e8e6e1;
    --muted: #9aa0a6;
    --dim: #767d85;
    --amber: #f0a832;
    --led: #46d160;
    --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
    --sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  }
  * { box-sizing: border-box; }
  body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: var(--sans);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
  }
  a { color: var(--text); }
  a:focus-visible, button:focus-visible {
    outline: 2px solid var(--amber);
    outline-offset: 3px;
  }
  .wrap { max-width: 780px; margin: 0 auto; padding: 32px 20px 48px; }

  /* ---- device faceplate header ---- */
  .faceplate {
    background: var(--panel);
    border: 1px solid var(--panel-edge);
    border-radius: 12px;
    padding: 20px 20px 18px;
    box-shadow: 0 10px 30px rgba(0,0,0,.45), inset 0 1px 0 rgba(255,255,255,.06);
  }
  .brand {
    display: flex; justify-content: space-between; align-items: baseline;
    font-family: var(--mono);
    font-size: 13px; letter-spacing: .12em; text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 16px;
  }
  .brand b { color: var(--text); font-weight: 600; }

  /* ---- button-row nav ---- */
  nav[aria-label="Plugins"] {
    display: flex; flex-wrap: wrap; gap: 10px;
  }
  .slot {
    display: inline-flex; align-items: center; gap: 10px;
    font-family: var(--mono);
    font-size: 13px; letter-spacing: .08em; text-transform: uppercase;
    padding: 12px 18px;
    border-radius: 8px;
    border: 1px solid #33373e;
    background: linear-gradient(#22252b, #191c20);
    box-shadow: 0 2px 0 #0b0d0f, inset 0 1px 0 rgba(255,255,255,.08);
    text-decoration: none;
    color: var(--text);
    cursor: pointer;
  }
  .slot .led {
    width: 8px; height: 8px; border-radius: 50%;
    background: #20242a;
    box-shadow: inset 0 1px 2px rgba(0,0,0,.7);
    flex: none;
  }
  .slot[aria-current="page"] {
    box-shadow: 0 1px 0 #0b0d0f, inset 0 2px 6px rgba(0,0,0,.55), inset 0 1px 0 rgba(255,255,255,.05);
    transform: translateY(1px);
    font-weight: 700;
  }
  .slot[aria-current="page"] .led {
    background: var(--led);
    box-shadow: 0 0 8px var(--led);
  }
  .slot[aria-disabled="true"] {
    color: var(--dim);
    cursor: default;
    box-shadow: 0 2px 0 #0b0d0f, inset 0 1px 0 rgba(255,255,255,.04);
  }

  /* ---- page content: kept clean ---- */
  main { padding: 32px 4px 0; }
  h1 { font-size: 36px; line-height: 1.15; margin: 0 0 8px; letter-spacing: -.01em; }
  .tagline { font-size: 18px; color: var(--muted); margin: 0 0 24px; }
  .tagline em { color: var(--text); font-style: normal; }
  p { margin: 0 0 16px; max-width: 66ch; }
  .stats {
    display: flex; flex-wrap: wrap; gap: 12px; margin: 24px 0;
  }
  .stat {
    flex: 1 1 150px;
    border: 1px solid var(--panel-edge);
    border-radius: 10px;
    padding: 14px 16px;
    background: var(--panel);
  }
  .stat .num {
    font-family: var(--mono); font-size: 24px; font-weight: 700; color: var(--amber);
  }
  .stat .lbl { font-size: 13px; color: var(--muted); margin-top: 2px; }
  h2 { font-size: 20px; margin: 32px 0 12px; }
  ul { margin: 0 0 16px; padding-left: 20px; }
  li { margin-bottom: 6px; max-width: 66ch; }

  /* ---- demo players (placeholders) ---- */
  .player {
    display: flex; align-items: center; gap: 14px;
    border: 1px solid var(--panel-edge);
    border-radius: 10px;
    padding: 12px 16px;
    margin-bottom: 10px;
    background: var(--panel);
  }
  .play {
    width: 0; height: 0; flex: none;
    border-top: 8px solid transparent;
    border-bottom: 8px solid transparent;
    border-left: 13px solid var(--text);
    margin-left: 3px;
  }
  .wave {
    flex: 1; height: 28px; border-radius: 4px;
    background: repeating-linear-gradient(90deg, #3a3f47 0 2px, transparent 2px 7px);
    opacity: .8;
  }
  .player .lbl { font-family: var(--mono); font-size: 13px; letter-spacing: .06em; text-transform: uppercase; }
  .player .note { font-size: 12px; color: var(--muted); margin-left: auto; text-align: right; }

  /* ---- link row ---- */
  .links { display: flex; flex-wrap: wrap; gap: 10px; margin: 8px 0 0; }
  .links a {
    font-family: var(--mono); font-size: 13px; letter-spacing: .05em; text-transform: uppercase;
    text-decoration: none;
    border: 1px solid var(--panel-edge);
    border-radius: 8px;
    padding: 10px 16px;
  }
  .links a:hover { border-color: var(--amber); }

  footer {
    margin-top: 48px; padding-top: 20px;
    border-top: 1px solid var(--panel-edge);
    font-size: 13px; color: var(--muted);
  }
  footer p { margin: 0 0 6px; }
}