/* Clear optical surfaces; edge highlights provide depth without heavy frost. */
.site-header.nova-navigation {
  --chapter-height: 96px;
  --chapter-offset: 0px;
  display: block;
  height: 62px;
  padding: 0;
  isolation: isolate;
  background: rgba(250, 250, 252, 0.76);
  -webkit-backdrop-filter: blur(8px) saturate(0.72) contrast(1.04);
  backdrop-filter: blur(8px) saturate(0.72) contrast(1.04);
  border-bottom: 1px solid rgba(255, 255, 255, 0.84);
  box-shadow:
    inset 0 1px 0 #ffffffeb,
    0 1px 0 #8596ad16;
}
.nova-navigation .nav-primary {
  position: relative;
  z-index: 2;
  height: 62px;
  max-width: 1248px;
  margin-inline: auto;
  padding-inline: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nova-navigation::after {
  z-index: 3;
  background: linear-gradient(
    105deg,
    #ffffff5c,
    transparent 14%,
    transparent 85%,
    #eef4ff70
  );
  box-shadow:
    inset 0 1px 1px #fff,
    inset 0 -1px 1px #7e93b324;
}
.chapter-spacer {
  height: 96px;
}
.chapter-clip {
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  height: calc(var(--chapter-height) - var(--chapter-offset));
  overflow: hidden;
  background: #fbfbfd;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
  border-bottom: 1px solid #ffffffb8;
  box-shadow:
    inset 0 1px 0 #ffffff94,
    inset 0 -1px 0 #7087a014;
}
.chapters-collapsed .chapter-clip {
  pointer-events: none;
}
.nova-chapters {
  height: var(--chapter-height);
  transform: translateY(calc(-1 * var(--chapter-offset)));
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 24px;
  padding: 10px 24px 12px;
  margin: 0;
}
.nova-chapters a {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-width: 90px;
  padding: 4px 10px;
  border-radius: 14px;
  color: #35353b;
  text-decoration: none;
  font-size: 11px;
  font-weight: 500;
  line-height: 1.3;
  -webkit-tap-highlight-color: transparent;
  transition:
    color 180ms ease,
    background 180ms ease;
}
.nova-chapters svg {
  fill: currentColor;
  stroke: none;
  stroke-linejoin: round;
  stroke-linecap: round;
  flex-shrink: 0;
  transition: transform 220ms cubic-bezier(0.22, 1, 0.36, 1);
}
.nova-chapters .icon-detail {
  fill: none;
  stroke: #fbfbfd;
  stroke-width: 1.8;
}
.nova-chapters a[aria-current="page"] .chapter-label {
  color: #2563d8;
}
.nova-chapters a:focus-visible {
  outline: 2px solid #2563d8;
  outline-offset: -2px;
}
.nova-chapters a:active svg {
  transform: scale(0.94);
}
.chapter-label {
  white-space: nowrap;
}
.label-short {
  display: none;
}
@media (hover: hover) and (pointer: fine) {
  .nova-chapters a:hover {
    background: #ffffff75;
  }
  .nova-chapters a:hover .chapter-label {
    color: #2563d8;
  }
  .nova-chapters a:hover svg {
    transform: translateY(-2px);
  }
}
.header-sign-in,
.explore-pill {
  position: relative;
  isolation: isolate;
  color: #24242a;
  background: rgba(250, 251, 255, 0.73);
  border: 1px solid rgba(255, 255, 255, 0.93);
  -webkit-backdrop-filter: blur(7px) saturate(0.8) contrast(1.06);
  backdrop-filter: blur(7px) saturate(0.8) contrast(1.06);
  box-shadow:
    inset 0 1px 1px #fff,
    inset 0 -1px 1px #7f91ac3d,
    inset 1px 0 2px #fff,
    0 4px 15px #1b315412;
}
.header-sign-in::before,
.explore-pill::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  border-radius: inherit;
  background: linear-gradient(
    125deg,
    #ffffffa6 0%,
    #ffffff12 24%,
    transparent 55%,
    #d5e3ff29 76%,
    #ffffffbf 100%
  );
  box-shadow:
    inset 1px 1px 1px #fff,
    inset -1px -1px 1px #a3b8d833;
}
.header-sign-in:hover,
.explore-pill:hover {
  color: #16161a;
  background-color: rgba(255, 255, 255, 0.85);
}
.explore-pill {
  position: fixed;
}
.header-sign-in {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  flex-shrink: 0;
  margin: 0;
  transition:
    background 180ms ease,
    transform 200ms ease;
}
.header-sign-in svg {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform 200ms ease;
}
.header-sign-in:active {
  transform: scale(0.94);
}
.header-sign-in:focus-visible {
  outline: 2px solid #2563d8;
  outline-offset: 3px;
}
@media (hover: hover) and (pointer: fine) {
  .header-sign-in:hover svg {
    transform: translateX(2px);
  }
}
@media (max-width: 760px) {
  .site-header.nova-navigation {
    height: 58px;
    --chapter-height: 88px;
  }
  .nova-navigation .nav-primary {
    height: 58px;
    padding-inline: 20px;
  }
  .header-sign-in {
    width: 44px;
    height: 44px;
  }
  .chapter-spacer {
    height: 88px;
  }
  .nova-chapters {
    gap: 0;
    justify-content: space-evenly;
    padding: 8px 10px 10px;
  }
  .nova-chapters a {
    flex: 1;
    min-width: 0;
    padding: 4px 5px;
    gap: 7px;
    font-size: 10px;
  }
  .nova-chapters svg {
    width: 31px;
    height: 31px;
  }
  .label-full {
    display: none;
  }
  .label-short {
    display: inline;
  }
}
@media (prefers-reduced-motion: reduce) {
  .chapter-clip,
  .nova-chapters a,
  .nova-chapters svg {
    transition: none;
  }
  .nova-chapters a:hover svg,
  .nova-chapters a:active svg {
    transform: none;
  }
}
@supports not (
  (backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))
) {
  .site-header.nova-navigation,
  .chapter-clip,
  .header-sign-in,
  .explore-pill {
    background-color: #f5f6fa;
  }
}