.retro-pc-viewer-app {
      --bg: #111214;
      --panel: #181a1f;
      --panel-border: rgba(255, 255, 255, 0.08);
      --viewer: #202226;
      --bg-color-a: #ffd86b;
      --bg-color-b: #b8a8ff;
      --bg-color-c: #ff8bd7;
      --text: #f5f7fb;
      --muted: #a8b0bc;
      --accent: #2b74ff;
      --input: rgba(255, 255, 255, 0.06);
    }

    .retro-pc-viewer-app * {
      box-sizing: border-box;
    }

    .retro-pc-viewer-app {
      margin: 0;
      height: 100%;
      background: var(--bg);
      color: var(--text);
      font-family: Inter, system-ui, sans-serif;
      overflow: hidden;
    }
    .retro-pc-viewer-app {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 360px;
      height: 100vh;
    }
    .retro-pc-viewer-app.viewer-only {
      display: block;
      background: transparent;
    }
    .retro-pc-viewer-app .viewer-shell {
      min-width: 0;
      min-height: 0;
      padding: 18px;
      background:
        radial-gradient(circle at top left, rgba(65, 97, 158, 0.14), transparent 28%),
        linear-gradient(180deg, #15171b, #101114);
    }
    .retro-pc-viewer-app.viewer-only .viewer-shell {
      height: 100%;
      padding: 0;
      background: none;
    }
    .retro-pc-viewer-app .viewer {
      position: relative;
      width: 100%;
      height: 100%;
      border: 1px solid var(--panel-border);
      border-radius: 18px;
      background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent 24%),
        var(--viewer);
      overflow: hidden;
      box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
    }
    .retro-pc-viewer-app.viewer-only .viewer {
      border: 0;
      border-radius: 0;
      box-shadow: none;
    }
    .retro-pc-viewer-app .viewer-backdrop {
      position: absolute;
      inset: 0;
      z-index: 0;
      background:
        radial-gradient(circle at 14% 10%, color-mix(in srgb, var(--bg-color-a) 92%, white 8%) 0 10%, transparent 28%),
        radial-gradient(circle at 28% 78%, color-mix(in srgb, var(--bg-color-a) 60%, var(--bg-color-b) 40%) 0 8%, transparent 24%),
        radial-gradient(circle at 32% 32%, color-mix(in srgb, var(--bg-color-b) 88%, white 12%) 0 18%, transparent 58%),
        radial-gradient(circle at 84% 22%, color-mix(in srgb, var(--bg-color-c) 92%, white 8%) 0 20%, transparent 60%),
        linear-gradient(135deg, var(--bg-color-b) 0%, color-mix(in srgb, var(--bg-color-b) 65%, var(--bg-color-c) 35%) 44%, var(--bg-color-c) 100%);
      filter: saturate(1.08) blur(0px);
      transform: scale(1.04);
      transform-origin: center;
    }
    .retro-pc-viewer-app .viewer canvas {
      position: relative;
      z-index: 1;
      display: block;
      width: 100%;
      height: 100%;
    }
    .retro-pc-viewer-app .viewer.is-staging .viewer-backdrop,
    .retro-pc-viewer-app .viewer.is-staging canvas,
    .retro-pc-viewer-app .viewer.is-staging .screen-overlay {
      opacity: 0;
      visibility: hidden;
    }
    .retro-pc-viewer-app .screen-overlay {
      position: absolute;
      left: 0;
      top: 0;
      width: 100px;
      height: 100px;
      transform-origin: 0 0;
      overflow: hidden;
      border-radius: 12px;
      background: #0d1010;
      box-shadow:
        0 0 0 2px rgba(18, 18, 18, 0.55),
        0 0 28px rgba(140, 255, 220, 0.08);
      z-index: 4;
      pointer-events: none;
    }
    .retro-pc-viewer-app .screen-overlay.interactive {
      pointer-events: auto;
    }
    .retro-pc-viewer-app .screen-overlay.hidden {
      opacity: 0;
      visibility: hidden;
      pointer-events: none;
    }
    .retro-pc-viewer-app .screen-overlay iframe {
      width: 100%;
      height: 100%;
      border: 0;
      display: block;
      background: #fff;
      pointer-events: auto;
    }
    .retro-pc-viewer-app .viewer-topbar,
    .retro-pc-viewer-app .status {
      position: absolute;
      left: 16px;
      z-index: 5;
      border-radius: 10px;
      background: rgba(0, 0, 0, 0.28);
      border: 1px solid rgba(255, 255, 255, 0.08);
      backdrop-filter: blur(8px);
    }
    .retro-pc-viewer-app .viewer-topbar {
      top: 16px;
      display: flex;
      gap: 10px;
      align-items: center;
      padding: 10px 12px;
      color: var(--muted);
      font-size: 13px;
    }
    .retro-pc-viewer-app .status {
      top: 64px;
      padding: 10px 12px;
      color: #d9efff;
      font-size: 12px;
      line-height: 1.4;
      white-space: pre-wrap;
      max-width: min(520px, calc(100% - 32px));
    }
    .retro-pc-viewer-app .sidebar {
      height: 100vh;
      overflow: auto;
      border-left: 1px solid var(--panel-border);
      background: var(--panel);
      padding: 18px 16px 20px;
    }
    .retro-pc-viewer-app .sidebar h1 {
      margin: 0 0 8px;
      font-size: 20px;
      line-height: 1.1;
    }
    .retro-pc-viewer-app .sidebar p {
      margin: 0 0 16px;
      font-size: 13px;
      line-height: 1.45;
      color: var(--muted);
    }
    .retro-pc-viewer-app details {
      border-top: 1px solid var(--panel-border);
      padding-top: 12px;
      margin-top: 12px;
    }
    .retro-pc-viewer-app summary {
      cursor: pointer;
      font-size: 13px;
      font-weight: 700;
      list-style: none;
    }
    .retro-pc-viewer-app summary::-webkit-details-marker {
      display: none;
    }
    .retro-pc-viewer-app .control {
      margin-top: 12px;
    }
    .retro-pc-viewer-app .control label {
      display: flex;
      justify-content: space-between;
      gap: 10px;
      margin-bottom: 6px;
      font-size: 12px;
      color: #dde5ef;
      flex-wrap: wrap;
    }
    .retro-pc-viewer-app .control-value {
      color: var(--muted);
      font-variant-numeric: tabular-nums;
    }
    .retro-pc-viewer-app .toggle-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-top: 12px;
      padding: 10px 12px;
      border: 1px solid var(--panel-border);
      border-radius: 12px;
      background: rgba(255, 255, 255, 0.03);
      font-size: 13px;
    }
    .retro-pc-viewer-app .toggle-row input[type="checkbox"] {
      width: 18px;
      height: 18px;
    }
    .retro-pc-viewer-app input[type="range"] {
      width: 100%;
    }
    .retro-pc-viewer-app input[type="color"] {
      width: 100%;
      height: 40px;
      padding: 4px;
      border: 1px solid var(--panel-border);
      border-radius: 10px;
      background: rgba(255, 255, 255, 0.05);
      cursor: pointer;
    }
    .retro-pc-viewer-app .actions {
      display: flex;
      gap: 8px;
      flex-wrap: wrap;
      margin-top: 16px;
    }
    .retro-pc-viewer-app button {
      border: 0;
      border-radius: 10px;
      padding: 9px 12px;
      background: var(--accent);
      color: white;
      font: inherit;
      font-size: 12px;
      cursor: pointer;
    }
    .retro-pc-viewer-app button.secondary {
      background: #343842;
    }
    .retro-pc-viewer-app textarea {
      width: 100%;
      min-height: 220px;
      margin-top: 14px;
      padding: 10px;
      border-radius: 12px;
      border: 1px solid var(--panel-border);
      background: #121419;
      color: #d8eeff;
      font: 12px/1.45 ui-monospace, SFMono-Regular, Menlo, monospace;
      resize: vertical;
    }
    .retro-pc-viewer-app .recording-banner {
      margin-top: 12px;
      padding: 10px 12px;
      border-radius: 12px;
      border: 1px solid rgba(43, 116, 255, 0.4);
      background: rgba(43, 116, 255, 0.12);
      color: #d8e6ff;
      font-size: 12px;
      line-height: 1.45;
    }
    .retro-pc-viewer-app .recording-banner.hidden,
    .retro-pc-viewer-app .click-list.hidden {
      display: none;
    }
    .retro-pc-viewer-app .click-list {
      display: flex;
      flex-direction: column;
      gap: 10px;
      margin-top: 12px;
    }
    .retro-pc-viewer-app .click-card {
      padding: 10px 12px;
      border: 1px solid var(--panel-border);
      border-radius: 12px;
      background: rgba(255, 255, 255, 0.03);
    }
    .retro-pc-viewer-app .click-card.is-active {
      border-color: rgba(43, 116, 255, 0.5);
      box-shadow: inset 0 0 0 1px rgba(43, 116, 255, 0.25);
    }
    .retro-pc-viewer-app .click-card strong,
    .retro-pc-viewer-app .click-card code {
      display: block;
    }
    .retro-pc-viewer-app .click-card strong {
      margin-bottom: 4px;
      font-size: 12px;
    }
    .retro-pc-viewer-app .click-card code {
      font: 11px/1.4 ui-monospace, SFMono-Regular, Menlo, monospace;
      color: #b8d7ff;
      word-break: break-word;
    }
    .retro-pc-viewer-app .click-card-actions {
      display: flex;
      gap: 8px;
      flex-wrap: wrap;
      margin-top: 8px;
    }
    .retro-pc-viewer-app .click-card-actions button {
      padding: 7px 10px;
      font-size: 11px;
    }

    @media (max-width: 960px) {
      .retro-pc-viewer-app {
        grid-template-columns: 1fr;
        grid-template-rows: minmax(0, 1fr) 44vh;
      }
    .retro-pc-viewer-app .sidebar {
        height: auto;
        border-left: 0;
        border-top: 1px solid var(--panel-border);
      }
    }