/* Global */
    html,
    body {
      height: 100%;
      width: 100%;
      margin: 0;
      padding: 0;
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      background-image: url('/background.jpg');
      background-size: cover;
      background-position: center;
      background-repeat: no-repeat;
      background-attachment: fixed;
    }
    
    @media (prefers-color-scheme: dark) {
      body {
        background-image: url('/dark-background.png');
      }
    }

    fluent-design-system-provider {
      display: block;
      min-height: 100%;
      width: 100%;
      background-color: transparent;
      color: var(--neutral-foreground-rest);
    }

    /* Header */
    header {
      display: flex;
      flex-direction: row;
      align-items: center;
      justify-content: center;
      height: 15vh;
    }

    header img {
      object-fit: contain;
    }

    .header-lantern {
      height: 100%;
    }

    .header-title {
      width: 50vh;
      padding-top: 32px;
      padding-bottom: 32px;
    }

    /* Main */
    main {
      display: flex;
      justify-content: center;
      align-items: center;
      height: 65vh;
      overflow: hidden;
    }

    /* Toolbar */
    .toolbar {
      display: flex;
      flex-direction: column;
      gap: 16px;
      align-items: center;
    }

    /* Buttons */
    fluent-button {
      --control-corner-radius: 16;
    }

    fluent-button.main-btn {
      height: 7vh;
    }

    fluent-button.main-btn::part(control) {
      padding: 0;
    }

    fluent-button.main-btn img {
      object-fit: contain;
      width: 60%;
      height: 60%;
    }

    /* Menu / Popover */
    .menu-container {
      position: relative;
    }
    fluent-menu#menu-popover {
      display: none;
      position: absolute;
      top: 0;
      left: calc(100% + 16px);
      z-index: 1000;
      /* Provide opaque fallback backgrounds to fix bleeding */
      background-color: var(--neutral-layer-floating, #ffffff);
      box-shadow: 0px 8px 16px rgba(0,0,0,0.14);
      padding: 4px;
      border-radius: 4px;
      width: max-content;
      min-width: 220px;
    }
    fluent-menu#menu-popover.show {
      display: flex;
      flex-direction: column;
    }
    
    @media (prefers-color-scheme: dark) {
      fluent-menu#menu-popover {
        background-color: var(--neutral-layer-floating, #292929);
      }
    }

    fluent-menu-item {
      cursor: pointer;
      width: 100%;
      box-sizing: border-box;
    }

    fluent-menu-item img {
      width: 200px;
      object-fit: contain;
    }

    /* Dark mode toggle handling */
    @media (prefers-color-scheme: dark) {
      fluent-menu-item img {
        filter: invert(0) !important;
      }
    }

    @media (prefers-color-scheme: light) {
      fluent-menu-item img {
        filter: invert(1);
      }
    }

    /* Footer */
    footer {
      position: fixed;
      left: 0;
      bottom: 0;
      width: 100%;
      height: 15vh;
      text-align: center;
      padding-top: 16px;
      z-index: 100;
      display: flex;
      flex-direction: column;
      justify-content: flex-end;
    }

    .footer-bg {
      width: 100%;
      height: 60%;
      background-image: url('/footer.png');
      /* From public root */
      background-repeat: repeat-x;
      background-position: bottom;
      background-size: auto 100%;
      margin-top: auto;
    }

    footer p {
      margin: 0;
      padding-bottom: 8px;
    }

    /* Force the classic Fluent UI Blue to prevent it from being too light */
    fluent-button[appearance="accent"]::part(control),
    fluent-button[appearance="primary"]::part(control) {
      background-color: #0078d4;
      color: white;
    }
    fluent-button[appearance="accent"]:hover::part(control),
    fluent-button[appearance="primary"]:hover::part(control) {
      background-color: #106ebe;
    }
    fluent-button[appearance="accent"]:active::part(control),
    fluent-button[appearance="primary"]:active::part(control) {
      background-color: #005a9e;
    }