.bubble-menu {
  left: 0;
  right: 0;
  top: 1.5em;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0 1.5em;
  pointer-events: none;
  z-index: 9999;
}

.bubble-menu.fixed {
  position: fixed;
}

.bubble-menu.absolute {
  position: absolute;
}

.bubble-menu .bubble {
  --bubble-size: 48px;
  width: var(--bubble-size);
  height: var(--bubble-size);
  border-radius: 50%;
  background: rgba(17, 17, 17, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow:
    0 4px 24px rgba(0, 0, 0, 0.5),
    inset 0 1px 1px rgba(255, 255, 255, 0.1);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  pointer-events: auto;
  transition: border-color 0.3s ease, transform 0.3s ease;
}

.bubble-menu .bubble:active {
  transform: scale(0.94);
}

.bubble-menu .logo-bubble,
.bubble-menu .toggle-bubble {
  will-change: transform;
}

.bubble-menu .logo-bubble {
  width: auto;
  min-height: var(--bubble-size);
  height: var(--bubble-size);
  padding: 0 16px;
  border-radius: calc(var(--bubble-size) / 2);
  gap: 8px;
}

.bubble-menu .toggle-bubble {
  width: var(--bubble-size);
  height: var(--bubble-size);
}

.bubble-menu .bubble-logo {
  max-height: 60%;
  max-width: 100%;
  object-fit: contain;
  display: block;
}

.bubble-menu .logo-content {
  --logo-max-height: 60%;
  --logo-max-width: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 60px;
  height: 100%;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.bubble-menu .logo-content > .bubble-logo,
.bubble-menu .logo-content > img,
.bubble-menu .logo-content > svg {
  max-height: var(--logo-max-height);
  max-width: var(--logo-max-width);
}

.bubble-menu .menu-btn {
  background: transparent;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.bubble-menu .menu-line {
  width: 22px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  display: block;
  margin: 0 auto;
  transition:
    transform 0.3s ease,
    opacity 0.3s ease;
  transform-origin: center;
}

.bubble-menu .menu-line + .menu-line {
  margin-top: 6px;
}

.bubble-menu .menu-line.short {
  width: 14px;
}

.bubble-menu .menu-btn.open .menu-line.short {
  width: 22px;
}

.bubble-menu .menu-btn.open .menu-line:first-child {
  transform: translateY(4px) rotate(45deg);
}

.bubble-menu .menu-btn.open .menu-line:last-child {
  transform: translateY(-4px) rotate(-45deg);
}

@media (min-width: 768px) {
  .bubble-menu .bubble {
    --bubble-size: 56px;
  }

  .bubble-menu .logo-bubble {
    padding: 0 16px;
  }
}

.bubble-menu-items {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  z-index: 9998;
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.bubble-menu-items.fixed {
  position: fixed;
}

.bubble-menu-items.absolute {
  position: absolute;
}

.bubble-menu-items .pill-list {
  list-style: none;
  margin: 0;
  padding: 0 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  row-gap: 4px;
  width: 100%;
  max-width: 1600px;
  margin-left: auto;
  margin-right: auto;
  pointer-events: auto;
  justify-content: stretch;
}

.bubble-menu-items .pill-list .pill-spacer {
  width: 100%;
  height: 0;
  pointer-events: none;
}

.bubble-menu-items .pill-list .pill-col {
  display: flex;
  justify-content: center;
  align-items: stretch;
  flex: 0 0 calc(100% / 3);
  box-sizing: border-box;
}

.bubble-menu-items .pill-list .pill-col:nth-child(4):nth-last-child(2) {
  margin-left: calc(100% / 6);
}

.bubble-menu-items .pill-list .pill-col:nth-child(4):last-child {
  margin-left: calc(100% / 3);
}

.bubble-menu-items .pill-link {
  --pill-bg: rgba(20, 20, 20, 0.6);
  --pill-color: #fff;
  --item-rot: 0deg;
  --hover-bg: #f3f4f6;
  --hover-color: #111;
  --pill-accent: #fff;
  width: 100%;
  min-height: 90px;
  padding: 1.25rem 1.75rem;
  font-size: clamp(1.6rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  border-radius: 26px;
  background: var(--pill-bg);
  color: var(--pill-color);
  border: 1px solid rgba(255, 255, 255, 0.12);
  text-decoration: none;
  box-shadow:
    0 8px 30px rgba(0, 0, 0, 0.45),
    inset 0 1px 1px rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  gap: 1.25rem;
  position: relative;
  transition:
    background 0.3s ease,
    color 0.3s ease,
    border-color 0.3s ease;
  will-change: transform;
  box-sizing: border-box;
  white-space: nowrap;
  overflow: hidden;
}

/* accent edge that glows per item */
.bubble-menu-items .pill-link::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20%;
  bottom: 20%;
  width: 4px;
  border-radius: 4px;
  background: var(--pill-accent);
  opacity: 0.7;
}

.bubble-menu-items .pill-index {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--pill-accent);
  flex-shrink: 0;
}

.bubble-menu-items .pill-arrow {
  margin-left: auto;
  font-size: 0.8em;
  font-weight: 400;
  opacity: 0.35;
  transition: transform 0.3s ease, opacity 0.3s ease, color 0.3s ease;
}

.bubble-menu-items .pill-link:hover .pill-arrow,
.bubble-menu-items .pill-link:active .pill-arrow {
  opacity: 1;
  transform: translate(3px, -3px);
}

.bubble-menu-items .pill-link:active {
  background: var(--hover-bg);
  color: var(--hover-color);
}

.bubble-menu-items .pill-link:active .pill-index {
  color: var(--hover-color);
}

@media (min-width: 900px) {
  .bubble-menu-items .pill-link {
    transform: rotate(var(--item-rot));
  }

  .bubble-menu-items .pill-link:hover {
    transform: rotate(var(--item-rot)) scale(1.06);
    background: var(--hover-bg);
    color: var(--hover-color);
  }

  .bubble-menu-items .pill-link:active {
    transform: rotate(var(--item-rot)) scale(0.94);
  }
}

.bubble-menu-items .pill-link .pill-label {
  display: inline-block;
  will-change: transform, opacity;
  height: 1.2em;
  line-height: 1.2;
}

@media (max-width: 899px) {
  .bubble-menu-items {
    padding-top: 0px;
    align-items: flex-start;
    padding-top: 120px;
  }

  .bubble-menu-items .pill-list {
    row-gap: 16px;
  }

  .bubble-menu-items .pill-list .pill-col {
    flex: 0 0 100%;
    margin-left: 0 !important;
    overflow: visible;
  }

  .bubble-menu-items .pill-link {
    font-size: clamp(1.5rem, 6vw, 2.2rem);
    min-height: 78px;
  }

  .bubble-menu-items .pill-link:active {
    transform: scale(0.97);
  }
}

/* Hide on desktop if desired, or use media queries to show/hide */
@media (min-width: 768px) {
    .bubble-menu {
        display: none;
    }
}

/* Glass Surface Styles */
.glass-surface {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  transition: opacity 0.26s ease-out;
  will-change: transform; /* Optimize compositing */
  transform: translateZ(0); /* Force hardware acceleration */
}

.glass-surface__filter {
  width: 100%;
  height: 100%;
  pointer-events: none;
  position: absolute;
  inset: 0;
  opacity: 0;
  z-index: -1;
}

.glass-surface__content {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem;
  border-radius: inherit;
  position: relative;
  z-index: 1;
}

/* Increased specificity to override .pill-link background */
.glass-surface--svg {
  background: light-dark(hsl(0 0% 100% / var(--glass-frost, 0)), hsl(0 0% 0% / var(--glass-frost, 0)));
  backdrop-filter: var(--filter-id, url(#glass-filter)) saturate(var(--glass-saturation, 1));
  will-change: backdrop-filter, transform; /* Optimize rendering */
  transform: translateZ(0); /* Force hardware acceleration */
  box-shadow:
    0 0 2px 1px light-dark(color-mix(in oklch, black, transparent 85%), color-mix(in oklch, white, transparent 65%))
      inset,
    0 0 10px 4px light-dark(color-mix(in oklch, black, transparent 90%), color-mix(in oklch, white, transparent 85%))
      inset,
    0px 4px 16px rgba(17, 17, 26, 0.05),
    0px 8px 24px rgba(17, 17, 26, 0.05),
    0px 16px 56px rgba(17, 17, 26, 0.05),
    0px 4px 16px rgba(17, 17, 26, 0.05) inset,
    0px 8px 24px rgba(17, 17, 26, 0.05) inset,
    0px 16px 56px rgba(17, 17, 26, 0.05) inset;
}

.glass-surface--fallback {
  background: rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(12px) saturate(1.8) brightness(1.1);
  -webkit-backdrop-filter: blur(12px) saturate(1.8) brightness(1.1);
  border: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow:
    0 8px 32px 0 rgba(31, 38, 135, 0.2),
    0 2px 16px 0 rgba(31, 38, 135, 0.1),
    inset 0 1px 0 0 rgba(255, 255, 255, 0.4),
    inset 0 -1px 0 0 rgba(255, 255, 255, 0.2);
}

@media (prefers-color-scheme: dark) {
  .glass-surface--fallback {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(12px) saturate(1.8) brightness(1.2);
    -webkit-backdrop-filter: blur(12px) saturate(1.8) brightness(1.2);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow:
      inset 0 1px 0 0 rgba(255, 255, 255, 0.2),
      inset 0 -1px 0 0 rgba(255, 255, 255, 0.1);
  }
}

@supports not (backdrop-filter: blur(10px)) {
  .glass-surface--fallback {
    background: rgba(255, 255, 255, 0.4);
    box-shadow:
      inset 0 1px 0 0 rgba(255, 255, 255, 0.5),
      inset 0 -1px 0 0 rgba(255, 255, 255, 0.3);
  }

  .glass-surface--fallback::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.15);
    border-radius: inherit;
    z-index: -1;
  }
}

@supports not (backdrop-filter: blur(10px)) {
  @media (prefers-color-scheme: dark) {
    .glass-surface--fallback {
      background: rgba(0, 0, 0, 0.4);
    }

    .glass-surface--fallback::before {
      background: rgba(255, 255, 255, 0.05);
    }
  }
}

.glass-surface:focus-visible {
  outline: 2px solid light-dark(#007aff, #0a84ff);
  outline-offset: 2px;
}