:root {
        color-scheme: dark;
        --topbar-control-height: 36px;
        --topbar-side-padding: 26px;
        --topbar-menu-offset: calc(18px + var(--topbar-control-height) + 6px);
      }
      html,
      body {
        height: 100%;
        margin: 0;
      }
      body {
        background: #000;
        font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica,
          Arial, sans-serif;
        overflow: visible;
      }

      .sr-only {
        position: absolute;
        width: 1px;
        height: 1px;
        padding: 0;
        margin: -1px;
        overflow: hidden;
        clip: rect(0, 0, 0, 0);
        white-space: nowrap;
        border: 0;
      }

      .noscript-banner {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 20;
        min-height: var(--noscript-banner-height, 40px);
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 0 16px;
        text-align: center;
        font-size: 12px;
        font-weight: 600;
        color: #f5f5f5;
        background: rgba(8, 8, 8, 0.92);
        border-bottom: 1px solid rgba(255, 255, 255, 0.12);
      }

      noscript + .topbar {
        top: var(--noscript-banner-height, 40px);
      }

      .js-enabled noscript + .topbar {
        top: 0;
      }

      .topbar {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 10;
        background: linear-gradient(
            180deg,
            rgba(0, 0, 0, 0) 0%,
            rgba(0, 0, 0, 0.3) 55%,
            rgba(0, 0, 0, 0.42)
          ),
          rgba(0, 0, 0, 0.24);
        backdrop-filter: blur(4px) saturate(1.15);
        -webkit-backdrop-filter: blur(4px) saturate(1.15);
        color: #f5f5f5;
      }

      .topbar__content {
        padding: 18px var(--topbar-side-padding) 14px;
        display: grid;
        position: relative;
        grid-template-columns: auto 1fr auto;
        align-items: center;
        gap: 16px;
      }

      .topbar__search-group {
        display: inline-flex;
        align-items: center;
        gap: 12px;
      }

      .topbar__titles {
        position: absolute;
        left: 50%;
        top: 50%;
        transform: translate(-50%, -50%);
        display: flex;
        flex-direction: column;
        gap: 4px;
        text-align: center;
        align-items: center;
        justify-self: center;
        pointer-events: none;
        z-index: 1;
        padding: 0 10px;
        width: clamp(260px, calc(100% - 440px), 680px);
      }
      .topbar__actions {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        justify-self: end;
        grid-column: 3;
      }

      /* Keep interactive controls above the centered titles */
      .topbar__search-group,
      .topbar__actions,
      .topbar__menu-toggle {
        position: relative;
        z-index: 2;
      }
      .topbar__menu-toggle {
        display: none;
        align-items: center;
        justify-content: center;
        width: var(--topbar-control-height);
        height: var(--topbar-control-height);
        border-radius: 50%;
        border: 1px solid rgba(255, 255, 255, 0.16);
        background: rgba(255, 255, 255, 0.06);
        color: #fff;
        cursor: pointer;
        box-shadow: 0 10px 22px rgba(0, 0, 0, 0.4);
        justify-self: end;
      }

      .topbar__menu-toggle:focus-visible {
        outline: 2px solid rgba(255, 255, 255, 0.65);
        outline-offset: 2px;
      }

      .topbar__menu-toggle .topbar__menu-icon {
        display: inline-flex;
        flex-direction: column;
        gap: 5px;
        width: 18px;
      }

      .topbar__menu-toggle .topbar__menu-icon span {
        display: block;
        width: 100%;
        height: 2px;
        background: currentColor;
        border-radius: 99px;
      }

      .topbar__menu {
        position: fixed;
        left: var(--topbar-side-padding);
        right: var(--topbar-side-padding);
        top: var(--topbar-menu-offset);
        z-index: 12;
        display: none;
        flex-direction: column;
        align-items: flex-end;
        gap: 12px;
        padding: 14px 0;
      }

      .topbar__menu.open {
        display: flex;
      }

      .topbar__menu-list {
        width: min(350px, 100%);
        display: flex;
        flex-direction: column;
        gap: 10px;
        align-items: stretch;
      }
      .topbar__control {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        min-height: var(--topbar-control-height);
        padding: 0 10px;
        border: 1px solid rgba(255, 255, 255, 0.16);
        border-radius: 999px;
        background: #000;
        color: #fff;
        font-size: 13px;
        font-weight: 600;
        cursor: pointer;
        text-decoration: none;
        box-shadow: 0 10px 22px rgba(0, 0, 0, 0.4);
      }

      .topbar__control:focus-visible {
        outline: 2px solid rgba(255, 255, 255, 0.65);
        outline-offset: 2px;
      }

      .topbar__menu-entry,
      .topbar__menu-search {
        width: 100%;
        box-sizing: border-box;
      }

      .topbar__menu-entry {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        min-height: var(--topbar-control-height);
        padding: 0 10px;
        border: 1px solid rgba(255, 255, 255, 0.16);
        border-radius: 999px;
        background: #000;
        color: #fff;
        font-size: 13px;
        font-weight: 600;
        cursor: pointer;
        text-decoration: none;
        box-shadow: 0 14px 30px rgba(0, 0, 0, 0.45);
      }

      .topbar__menu-entry:focus-visible {
        outline: 2px solid rgba(255, 255, 255, 0.65);
        outline-offset: 2px;
      }

      .topbar__menu-entry .topbar__icon {
        width: 16px;
        height: 16px;
      }

      .topbar__menu-search {
        display: flex;
        flex-direction: column;
        align-items: stretch;
      }

      .topbar__pill {
        gap: 8px;
        font-size: 12px;
      }

      .topbar__menu .topbar__pill {
        gap: 10px;
        font-size: 13px;
      }
      .pill-input {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        height: var(--topbar-control-height);
        padding: 0 12px;
        width: 100%;
        border-radius: 999px;
        border: 1px solid rgba(255, 255, 255, 0.16);
        background: #0d0d0d;
        box-shadow: 0 14px 30px rgba(0, 0, 0, 0.45);
        box-sizing: border-box;
      }

      .topbar__title {
        margin: 0;
        font-size: 18px;
        font-weight: 700;
        letter-spacing: 0.02em;
      }

      .topbar__subtitle {
        margin: 0;
        font-size: 14px;
        font-weight: 500;
        color: rgba(245, 245, 245, 0.78);
      }
      #bg {
        position: fixed;
        inset: 0;
        z-index: 0;
        pointer-events: none;
        background-color: #000;

        /* Tile sizes (overridden at breakpoints) */
        --bg-cross-size: 420px;
        --bg-star-size: 720px;
        --bg-cross-offset: calc(var(--bg-cross-size) / 2);

        background-image:
          /* dense star tile */ radial-gradient(
            2px 2px at 8% 20%,
            rgba(255, 255, 255, 0.8),
            transparent 60%
          ),
          radial-gradient(
            1.5px 1.5px at 26% 46%,
            rgba(255, 255, 255, 0.9),
            transparent 60%
          ),
          radial-gradient(
            2px 2px at 42% 12%,
            rgba(255, 255, 255, 0.72),
            transparent 60%
          ),
          radial-gradient(
            2.5px 2.5px at 58% 72%,
            rgba(255, 255, 255, 0.78),
            transparent 60%
          ),
          radial-gradient(
            1.5px 1.5px at 72% 32%,
            rgba(255, 255, 255, 0.85),
            transparent 60%
          ),
          radial-gradient(
            1px 1px at 18% 78%,
            rgba(255, 255, 255, 0.74),
            transparent 60%
          ),
          radial-gradient(
            2px 2px at 82% 14%,
            rgba(255, 255, 255, 0.86),
            transparent 60%
          ),
          radial-gradient(
            1.5px 1.5px at 12% 62%,
            rgba(255, 255, 255, 0.78),
            transparent 60%
          ),
          radial-gradient(
            2px 2px at 90% 54%,
            rgba(255, 255, 255, 0.82),
            transparent 60%
          ),
          radial-gradient(
            1.5px 1.5px at 46% 86%,
            rgba(255, 255, 255, 0.76),
            transparent 60%
          ),
          radial-gradient(
            1.5px 1.5px at 34% 16%,
            rgba(255, 255, 255, 0.7),
            transparent 60%
          ),
          radial-gradient(
            1px 1px at 64% 30%,
            rgba(255, 255, 255, 0.9),
            transparent 60%
          ),
          radial-gradient(
            2.2px 2.2px at 74% 88%,
            rgba(255, 255, 255, 0.8),
            transparent 60%
          ),
          radial-gradient(
            1.8px 1.8px at 6% 92%,
            rgba(255, 255, 255, 0.82),
            transparent 60%
          ),
          radial-gradient(
            2.1px 2.1px at 96% 8%,
            rgba(255, 255, 255, 0.85),
            transparent 60%
          ),
          radial-gradient(
            1.2px 1.2px at 52% 58%,
            rgba(255, 255, 255, 0.86),
            transparent 60%
          ),
          radial-gradient(
            1px 1px at 38% 74%,
            rgba(255, 255, 255, 0.82),
            transparent 60%
          ),
          radial-gradient(
            1.6px 1.6px at 56% 8%,
            rgba(255, 255, 255, 0.74),
            transparent 60%
          ),
          radial-gradient(
            1.2px 1.2px at 28% 90%,
            rgba(255, 255, 255, 0.86),
            transparent 60%
          ),
          radial-gradient(
            2px 2px at 10% 40%,
            rgba(255, 255, 255, 0.9),
            transparent 60%
          ),
          radial-gradient(
            1.8px 1.8px at 14% 12%,
            rgba(255, 255, 255, 0.78),
            transparent 60%
          ),
          radial-gradient(
            1.4px 1.4px at 88% 38%,
            rgba(255, 255, 255, 0.82),
            transparent 60%
          ),
          radial-gradient(
            1.2px 1.2px at 62% 18%,
            rgba(255, 255, 255, 0.74),
            transparent 60%
          ),
          radial-gradient(
            2.4px 2.4px at 30% 68%,
            rgba(255, 255, 255, 0.8),
            transparent 60%
          ),
          radial-gradient(
            1.5px 1.5px at 48% 32%,
            rgba(255, 255, 255, 0.88),
            transparent 60%
          ),
          radial-gradient(
            1.3px 1.3px at 70% 58%,
            rgba(255, 255, 255, 0.76),
            transparent 60%
          ),
          radial-gradient(
            1.1px 1.1px at 22% 56%,
            rgba(255, 255, 255, 0.82),
            transparent 60%
          ),
          radial-gradient(
            1.7px 1.7px at 84% 72%,
            rgba(255, 255, 255, 0.84),
            transparent 60%
          );
        background-blend-mode: screen;
        background-position: center;
        background-size: var(--bg-star-size) var(--bg-star-size);
        background-repeat: repeat;
        background-attachment: fixed;
        isolation: isolate;
      }

      /* Nav crosses: symmetric around screen center, but keep the exact center clear */
      #bg::before {
        content: "";
        position: absolute;
        inset: 0;
        pointer-events: none;
        background-image: url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0naHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmcnIHdpZHRoPSc0MjAnIGhlaWdodD0nNDIwJyB2aWV3Qm94PScwIDAgNDIwIDQyMCc+CjxsaW5lIHgxPScyMTAnIHkxPScxOTQnIHgyPScyMTAnIHkyPScyMjYnIHN0cm9rZT0ncmdiYSgyNTUsMjU1LDI1NSwwLjEyKScgc3Ryb2tlLXdpZHRoPScxJyBzdHJva2UtbGluZWNhcD0ncm91bmQnLz4KPGxpbmUgeDE9JzE5NCcgeTE9JzIxMCcgeDI9JzIyNicgeTI9JzIxMCcgc3Ryb2tlPSdyZ2JhKDI1NSwyNTUsMjU1LDAuMTIpJyBzdHJva2Utd2lkdGg9JzEnIHN0cm9rZS1saW5lY2FwPSdyb3VuZCcvPgo8L3N2Zz4=");
        background-repeat: repeat;
        background-size: var(--bg-cross-size) var(--bg-cross-size);
        background-position: calc(50% + var(--bg-cross-offset))
          calc(50% + var(--bg-cross-offset));
        background-attachment: fixed;
        mix-blend-mode: screen;
        z-index: 0;
      }

      #bg::after {
        content: "";
        position: absolute;
        inset: 0;
        background: radial-gradient(
          ellipse at center,
          rgba(0, 0, 0, 0) 55%,
          rgba(0, 0, 0, 0.35) 100%
        );
        pointer-events: none;
        z-index: 1;
      }

      #stage {
        position: fixed;
        inset: 0;
        overflow: auto;
        background: transparent;
        z-index: 1;
      }
      svg {
        display: block;
      }

      /* Performance: keep SVG painting separate from the starfield layer */
      #viz {
        transform: translateZ(0);
        touch-action: manipulation;
      }
      .link {
        stroke: #404040;
        stroke-width: 1;
        shape-rendering: geometricPrecision;
        transition: stroke 260ms, stroke-width 260ms;
      }
      .link.path {
        stroke: #d9d9d9;
        stroke-width: 2;
      }
      .link.disabled {
        stroke: #141414;
      }

      /* node visuals */
      .node .mark {
        fill: #d9d9d9;
        stroke: none;
      }

      .node.disabled .mark {
        fill: #303030;
      }
      /* ring around every node */
      .halo {
        fill: none;
        stroke: #444444;
        stroke-width: 1;
        pointer-events: none;
      }
      .halo.disabled {
        stroke: #1e1e1e;
      }
      /* Opaque node + halo colors (single mid-tone matching the previous white-with-alpha look) */
      /* big touch target */
      .node .hit-circle {
        fill: rgba(255, 255, 255, 0); /* must not be 'none' */
        pointer-events: all;
      }

      /* IMPORTANT: removed selected/path halo around center mark (dot/square) */

      /* label masking + clicking */
      .label-hit {
        fill: rgba(255, 255, 255, 0);
        pointer-events: all;
      }
      .label-bg {
        fill: #000;
        opacity: 0.88;
        pointer-events: none;
      }
      .label .title {
        font-size: 10px;
        font-weight: 600;
        pointer-events: none;
      }
      .label .desc {
        font-size: 8px;
        font-weight: 400;
        pointer-events: none;
      }
      .label .desc-toggle {
        font-size: 8px;
        font-weight: 600;
        text-decoration: underline;
        cursor: pointer;
        pointer-events: all;
      }

      .label-menu-trigger {
        font-size: 11px;
        font-weight: 600;
        cursor: pointer;
        user-select: none;
        pointer-events: all;
      }

      .label-share-glyph {
        cursor: pointer;
        user-select: none;
        pointer-events: all;
      }

      .label-share-glyph path {
        stroke: currentColor;
      }

      .label-menu-hit {
        fill: rgba(255, 255, 255, 0);
        cursor: pointer;
        pointer-events: all;
      }

      .label-menu {
        pointer-events: all;
      }

      .label-menu-bg {
        fill: rgba(8, 8, 8, 0.94);
        stroke: rgba(255, 255, 255, 0.12);
        stroke-width: 1;
      }

      .label-menu-item text {
        font-size: 10px;
        font-weight: 600;
        fill: #f5f5f5;
        pointer-events: none;
      }

      .label-menu-item-bg {
        fill: transparent;
      }

      .label-menu-item:hover .label-menu-item-bg {
        fill: rgba(255, 255, 255, 0.08);
      }

      .modal-overlay {
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.62);
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 24px;
        opacity: 0;
        pointer-events: none;
        transition: opacity 160ms ease;
        z-index: 20;
      }

      .modal-overlay.open {
        opacity: 1;
        pointer-events: auto;
      }

      .modal {
        width: min(480px, 100%);
        background: rgba(8, 8, 8, 0.96);
        border: 1px solid rgba(255, 255, 255, 0.12);
        border-radius: 16px;
        padding: 18px;
        box-shadow: 0 24px 48px rgba(0, 0, 0, 0.6);
        color: #f5f5f5;
        display: flex;
        flex-direction: column;
        gap: 12px;
        position: relative;
      }

      .modal__title {
        font-size: 14px;
        font-weight: 700;
        margin: 0;
      }

      .modal__desc {
        margin: 0;
        font-size: 12px;
        color: rgba(245, 245, 245, 0.7);
      }

      .modal__input {
        box-sizing: border-box;
        width: 100%;
        padding: 10px 12px;
        border-radius: 10px;
        border: 1px solid rgba(255, 255, 255, 0.16);
        background: rgba(0, 0, 0, 0.6);
        color: #f5f5f5;
        font-size: 12px;
        font-weight: 600;
      }

      .modal__actions {
        display: flex;
        justify-content: flex-end;
        gap: 10px;
      }

      .modal__close {
        position: absolute;
        top: 10px;
        right: 10px;
        width: 24px;
        height: 24px;
        border: none;
        background: transparent;
        color: #fff;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        font-size: 14px;
        line-height: 1;
      }

      .modal__close:focus-visible {
        outline: 2px solid rgba(255, 255, 255, 0.65);
        outline-offset: 2px;
      }

      .modal__button {
        border-radius: 999px;
        border: 1px solid rgba(255, 255, 255, 0.18);
        background: rgba(255, 255, 255, 0.06);
        color: #fff;
        padding: 8px 14px;
        font-size: 12px;
        font-weight: 600;
        cursor: pointer;
      }

      .modal__button:focus-visible {
        outline: 2px solid rgba(255, 255, 255, 0.65);
        outline-offset: 2px;
      }

      /* Bigger click/touch target for the inline "more..." / "less" toggle */
      .label .toggle-hit {
        fill: rgba(255, 255, 255, 0); /* must not be 'none' */
        pointer-events: all;
        cursor: pointer;
      }

      /* Floating action button */
      .topbar__search {
        justify-self: start;
        position: relative;
        z-index: 3;
        display: inline-flex;
        align-items: center;
        gap: 10px;
        flex: 0 1 auto;
        min-width: 0;
      }

      .topbar__search-toggle {
        flex-shrink: 0;
      }

      .topbar__search-input {
        position: relative;
        width: 0;
        opacity: 0;
        pointer-events: none;
        overflow: hidden;
        transition: width 180ms ease, opacity 150ms ease;
        min-width: 0;
      }

      .topbar__search--open .topbar__search-input {
        width: 200px;
        opacity: 1;
        pointer-events: auto;
        overflow: visible;
      }
      .topbar__search .pill-input:focus-within {
        outline: none;
        box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.38),
          0 14px 30px rgba(0, 0, 0, 0.45);
      }

      .topbar__icon,
      .pill-input__icon {
        width: 18px;
        height: 18px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        color: #fff;
        flex-shrink: 0;
      }

      .topbar__icon svg,
      .pill-input__icon svg {
        width: 100%;
        height: 100%;
        display: block;
      }

      .glass-panel {
        background: rgba(0, 0, 0, 0.92);
        border-radius: 16px;
        box-shadow: 0 18px 36px rgba(0, 0, 0, 0.6);
      }
      .pill-input__field {
        background: transparent;
        border: none;
        color: #f5f5f5;
        font-size: 14px;
        font-weight: 600;
        letter-spacing: 0.02em;
        outline: none;
        min-width: 0;
        width: 100%;
        height: 100%;
      }

      .pill-input__field::placeholder {
        color: rgba(245, 245, 245, 0.78);
        font-size: 12px;
        font-weight: 400;
      }

      .topbar__search-results {
        position: absolute;
        top: calc(100% + 8px);
        left: 0;
        width: 360px;
        max-width: 75vw;
        max-height: 360px;
        overflow-y: auto;
        overflow-x: hidden;
        padding: 6px;
        display: none;
        flex-direction: column;
        gap: 6px;
        z-index: 12;
      }

      .topbar__search-results.open {
        display: flex;
      }

      .search-result {
        width: 100%;
        text-align: left;
        padding: 10px 12px;
        border-radius: 12px;
        background: rgba(13, 13, 13, 1);
        border: none;
        color: #fff;
        cursor: pointer;
        transition: background 120ms ease;
      }

      .search-result:hover,
      .search-result:focus-visible {
        background: rgba(255, 255, 255, 0.08);
        outline: none;
      }

      .search-result__title {
        font-size: 14px;
        font-weight: 700;
        margin: 0 0 4px;
      }

      .search-result__breadcrumb {
        margin: 0 0 4px;
        color: rgba(245, 245, 245, 0.55);
        font-size: 11px;
        letter-spacing: 0.01em;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
      }

      .search-result__desc {
        margin: 0;
        color: rgba(245, 245, 245, 0.8);
        font-size: 12px;
        line-height: 1.35;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
      }

      .search-result--empty {
        margin: 0;
        width: 100%;
        padding: 10px 12px;
        border-radius: 12px;
        background: rgba(13, 13, 13, 1);
        color: #fff;
        font-size: 13px;
        text-align: left;
        border: none;
        pointer-events: none;
        cursor: default;
      }

      .fab-container {
        position: fixed;
        right: 26px;
        bottom: 26px;
        display: flex;
        flex-direction: column;
        align-items: flex-end;
        gap: 8px;
        pointer-events: none;
        z-index: 4;
      }

      .fab-menu {
        display: flex;
        flex-direction: column;
        align-items: flex-end;
        gap: 8px;
        opacity: 0;
        transform: translateY(4px) scale(0.98);
        transition: opacity 150ms ease, transform 150ms ease;
        pointer-events: none;
      }

      .fab-container.open .fab-menu {
        opacity: 1;
        transform: translateY(0) scale(1);
        pointer-events: auto;
      }

      .fab-action {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        padding: 8px 12px;
        background: rgba(255, 255, 255, 0.06);
        border: 1px solid rgba(255, 255, 255, 0.16);
        border-radius: 999px;
        color: #fff;
        font-size: 13px;
        font-weight: 600;
        text-decoration: none;
        box-shadow: 0 14px 30px rgba(0, 0, 0, 0.45);
        backdrop-filter: blur(6px);
        pointer-events: auto;
      }

      .fab-action:focus-visible,
      .fab-toggle:focus-visible {
        outline: 2px solid rgba(255, 255, 255, 0.65);
        outline-offset: 3px;
      }

      .fab-icon {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        color: #fff;
        font-size: 15px;
        font-weight: 700;
        line-height: 1;
      }

      .fab-icon svg {
        width: 16px;
        height: 16px;
        display: block;
      }

      .fab-label {
        white-space: nowrap;
      }

      .fab-toggle {
        width: 48px;
        height: 48px;
        border-radius: 50%;
        border: 1px solid rgba(255, 255, 255, 0.22);
        background: #111;
        color: #fff;
        font-size: 24px;
        line-height: 1;
        display: grid;
        place-items: center;
        box-shadow: 0 18px 36px rgba(0, 0, 0, 0.55);
        cursor: pointer;
        pointer-events: auto;
        position: relative;
        overflow: visible;
      }

      .fob-stack {
        position: fixed;
        right: 20px;
        bottom: 20px;
        display: none;
        flex-direction: column;
        align-items: flex-end;
        gap: 10px;
        z-index: 6;
        pointer-events: none;
      }

      .fob-stack .fob-button,
      .fob-stack .topbar__search-toggle {
        pointer-events: auto;
      }

      .fob-stack .topbar__search {
        pointer-events: auto;
      }

      .fob-search .topbar__search-results {
        top: auto;
        bottom: calc(100% + 8px);
        left: auto;
        right: 0;
      }

      .topbar__round-button {
        width: var(--topbar-control-height);
        height: var(--topbar-control-height);
        border-radius: 50%;
        flex-shrink: 0;
      }

      .button-pulse-ring {
        position: absolute;
        top: 50%;
        left: 50%;
        width: 100%;
        height: 100%;
        border-radius: 50%;
        border: 1px solid #f2f2f2;
        transform: translate(-50%, -50%) scale(1);
        opacity: 0;
        pointer-events: none;
        animation: button-pulse-ring 1.98s cubic-bezier(0.215, 0.61, 0.355, 1)
          forwards;
      }

      @keyframes button-pulse-ring {
        0% {
          opacity: 0;
          transform: translate(-50%, -50%) scale(1);
        }
        14% {
          opacity: 0.95;
        }
        100% {
          opacity: 0;
          transform: translate(-50%, -50%) scale(3.4);
        }
      }

      .topbar__menu-search {
        display: flex;
        flex-direction: column;
        align-items: stretch;
      }

      .topbar__menu-search .topbar__search-input {
        width: 100%;
        opacity: 1;
        pointer-events: auto;
      }

      .topbar__menu-search .topbar__search-results {
        position: relative;
        top: 0;
        left: 0;
        min-width: 0;
        width: 100%;
        max-width: 100%;
        margin-top: 8px;
      }

      .topbar__menu-search .pill-input__icon {
        width: 16px;
        height: 16px;
        opacity: 0.9;
      }

      .topbar__menu .pill-input {
        background: #000;
        gap: 10px;
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
      }

      .topbar__menu .pill-input__field {
        font-size: 13px;
        font-weight: 700;
        letter-spacing: 0;
        line-height: 1;
      }

      /* Collapse Add Item + Feedback into round, icon-only controls */
      @media (max-width: 900px) {
        #bg {
          --bg-cross-size: 320px;
          --bg-star-size: 560px;
        }

        .topbar__actions .topbar__action {
          display: grid;
          place-items: center;
          width: var(--topbar-control-height);
          height: var(--topbar-control-height);
          padding: 0;
          border-radius: 50%;
          gap: 0;
          background: #111;
          border: 1px solid rgba(255, 255, 255, 0.22);
          box-shadow: 0 18px 36px rgba(0, 0, 0, 0.55);
        }

        .topbar__actions .topbar__action .fab-label {
          display: none;
        }

        .topbar__actions .topbar__action svg {
          width: 18px;
          height: 18px;
        }
      }

      @media (max-width: 600px) {
        #bg {
          --bg-cross-size: 240px;
          --bg-star-size: 420px;
        }

        .topbar__content {
          grid-template-columns: 1fr auto;
        }

        .topbar__titles {
          position: static;
          transform: none;
          grid-column: 1 / 2;
          justify-self: start;
          text-align: left;
          align-items: flex-start;
          width: 100%;
          padding: 0;
          width: min(
            520px,
            calc(
              100% - (var(--topbar-side-padding) * 2) -
                var(--topbar-control-height) - 16px
            )
          );
        }
        .topbar__search-group,
        .topbar__actions {
          display: none;
        }

        .topbar__menu-toggle {
          display: inline-flex;

          grid-column: 2;
        }
        .topbar__menu-search .topbar__search-results {
          min-width: 0 !important;
          max-width: 100% !important;
        }
        .topbar__titles {
          position: static;
          transform: none;
          grid-column: 1 / 2;
          justify-self: start;
          text-align: left;
          align-items: flex-start;
          width: 100%;
          padding: 0;
        }

        .fob-stack {
          display: flex;
        }
      }

      .static-node-diagram {
        position: absolute;
        inset: 0;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 140px 24px 180px;
        z-index: 2;
        pointer-events: none;
      }

      .static-node-diagram__inner {
        pointer-events: auto;
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 16px;
        padding: 18px 22px;
        border-radius: 18px;
        border: 1px solid rgba(255, 255, 255, 0.14);
        background: rgba(0, 0, 0, 0.45);
        backdrop-filter: blur(6px);
        max-width: min(640px, 92vw);
        color: #f5f5f5;
      }

      .static-node-diagram__title {
        font-size: 15px;
        font-weight: 600;
        text-align: center;
      }

      .static-node-diagram__svg {
        display: block;
        max-width: min(640px, 92vw);
        height: auto;
      }

      .static-node-diagram__line {
        stroke: rgba(255, 255, 255, 0.85);
        stroke-width: 2;
      }

      .static-node-diagram__node {
        fill: #0f0f0f;
        stroke: rgba(255, 255, 255, 0.95);
        stroke-width: 1.5;
      }

      .static-node-diagram__node--current {
        fill: #ffffff;
        stroke: #fff;
        stroke-width: 2;
      }

      .static-node-diagram__label-bg {
        fill: rgba(10, 10, 10, 0.95);
        stroke: rgba(255, 255, 255, 0.2);
        stroke-width: 1;
      }

      .static-node-diagram__label {
        font-size: 12px;
        fill: #fff;
        paint-order: stroke;
        stroke: rgba(0, 0, 0, 0.6);
        stroke-width: 0.8;
      }

      .static-node-diagram__label {
        pointer-events: all;
      }

      .static-node-diagram__link {
        color: #fff;
        text-decoration: underline;
        font-size: 13px;
      }

      .static-node-diagram__lists {
        width: 100%;
        display: grid;
        gap: 12px;
      }

      .static-node-diagram__list {
        width: 100%;
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
        gap: 8px 16px;
        margin: 0;
        padding: 0;
        list-style: none;
      }

      .static-node-diagram__list-title {
        font-size: 12px;
        text-transform: uppercase;
        letter-spacing: 0.08em;
        color: rgba(255, 255, 255, 0.6);
        margin: 0 0 4px;
      }

      .static-node-diagram__list a {
        color: #fff;
        text-decoration: none;
        font-size: 12px;
      }

      .static-node-diagram__list a:hover,
      .static-node-diagram__list a:focus-visible {
        text-decoration: underline;
      }

      .js-enabled .static-node-diagram {
        display: none;
      }

      .noscript-node-card {
        position: absolute;
        inset: 0;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 140px 24px 180px;
        z-index: 2;
        pointer-events: none;
      }

      .node-page__card--noscript {
        pointer-events: auto;
      }

      .js-enabled .noscript-node-card {
        display: none;
      }

      .node-page .noscript-banner {
        top: 0;
      }

      .node-page {
        min-height: 100vh;
        display: flex;
        align-items: center;
        justify-content: center;
        color: #f5f5f5;
      }

      .node-page__content {
        position: relative;
        z-index: 1;
        width: 100%;
        min-height: 100vh;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 120px 24px;
      }

      .node-page__card {
        position: relative;
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 18px;
        padding: 32px 28px 28px;
        border-radius: 20px;
        border: 1px solid rgba(255, 255, 255, 0.14);
        background: rgba(0, 0, 0, 0.55);
        backdrop-filter: blur(8px);
        max-width: min(760px, 92vw);
        text-align: center;
        box-shadow: 0 24px 48px rgba(0, 0, 0, 0.45);
      }

      .node-page__back {
        position: absolute;
        top: 18px;
        left: 18px;
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 6px 10px;
        border-radius: 999px;
        border: 1px solid rgba(255, 255, 255, 0.3);
        color: #fff;
        text-decoration: none;
        font-size: 12px;
        background: rgba(255, 255, 255, 0.08);
      }

      .node-page__back-icon {
        width: 16px;
        height: 16px;
      }

      .node-page__back:hover,
      .node-page__back:focus-visible {
        background: rgba(255, 255, 255, 0.16);
      }

      .node-page__graph {
        width: 100%;
        display: flex;
        justify-content: center;
        max-width: 100%;
      }

      .node-page__svg {
        display: block;
        width: auto;
        max-width: 100%;
        height: auto;
      }

      .node-page__title {
        margin: 0;
        font-size: 22px;
        font-weight: 700;
      }

      .node-page__description {
        margin: 0;
        font-size: 15px;
        line-height: 1.6;
        color: rgba(245, 245, 245, 0.85);
      }