.glass {
  background: var(--pill-bg);
  -webkit-backdrop-filter: var(--glass-filter);
  backdrop-filter: var(--glass-filter);
  box-shadow: var(--glass-elevation);
}

.lens {
  position: relative;
  overflow: hidden;
  overflow: clip;
  will-change: transform;
}

.lens::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  z-index: 2;
  pointer-events: none;
  background: linear-gradient(125deg, var(--sheen-hi) 0%, var(--sheen-mid) 34%, rgba(255, 255, 255, 0) 62%);
  box-shadow: inset 0 1px 1px var(--sheen-rim);
}

.lens > * {
  position: relative;
  z-index: 3;
}

.press {
  transition: transform 0.25s var(--ease-spring);
}

.press:hover {
  transform: scale(1.04);
}

.press:active {
  transform: scale(0.97);
}

.top-nav {
  position: fixed;
  top: 0;
  right: 0;
  padding: calc(32px + env(safe-area-inset-top)) calc(40px + env(safe-area-inset-right)) 32px 40px;
  z-index: var(--z-ui);
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 53px;
  height: 53px;
  border-radius: 999px;
  color: var(--text-color);
}

.theme-toggle__icon {
  position: absolute;
  z-index: 3;
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition:
    transform 0.6s var(--ease-rotate),
    opacity 0.4s ease;
}

.theme-toggle__icon--sun {
  opacity: 1;
  transform: rotate(0deg);
}

.theme-toggle__icon--moon {
  opacity: 0;
  transform: rotate(-90deg);
}

:root[data-theme="light"] .theme-toggle__icon--sun {
  opacity: 0;
  transform: rotate(90deg);
}

:root[data-theme="light"] .theme-toggle__icon--moon {
  opacity: 1;
  transform: rotate(0deg);
}

.scroll-hint {
  position: absolute;
  left: 0;
  right: 0;
  top: 50vh;
  top: 50svh;
  width: fit-content;
  margin: -1.35em auto 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35em;
  color: var(--muted-color);
  font-size: clamp(16px, 1.9vw, 30px);
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  pointer-events: none;
}

.scroll-hint__arrow {
  width: 1em;
  height: 1em;
  animation: hint-nudge 1.8s ease-in-out infinite;
}

.scroll-hint__arrow--light,
:root[data-theme="light"] .scroll-hint__arrow--dark {
  display: none;
}

:root[data-theme="light"] .scroll-hint__arrow--light {
  display: block;
}

.hint-hover {
  cursor: pointer;
}

@keyframes hint-nudge {
  0%,
  100% {
    margin-top: 0;
    opacity: 0.9;
  }
  50% {
    margin-top: 0.3em;
    opacity: 0.4;
  }
}

@keyframes hint-pulse {
  0%,
  100% {
    opacity: 0.9;
  }
  50% {
    opacity: 0.3;
  }
}

.scroll-dots {
  position: fixed;
  top: 50%;
  right: calc(clamp(12px, 2.6vw, 30px) + env(safe-area-inset-right));
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  z-index: var(--z-ui);
  pointer-events: none;
}

.scroll-dots__dot {
  display: block;
  width: 8px;
  pointer-events: auto;
}

.scroll-dots__dot span {
  display: block;
  width: 8px;
  height: 8px;
  border-radius: 4px;
  background: var(--text-color);
  opacity: 0.28;
  transition:
    height 0.45s var(--ease-out),
    opacity 0.45s ease;
}

.scroll-dots__dot:hover span {
  opacity: 0.6;
}

.scroll-dots__dot.is-active span {
  height: 24px;
  opacity: 0.9;
}

.pill-anchor {
  position: fixed;
  inset: 0;
  z-index: var(--z-ui);
  display: flex;
  justify-content: center;
  align-items: center;
  pointer-events: none;
  opacity: 0;
  transform: translateY(14px) scale(0.96);
  transition:
    opacity 0.6s var(--ease-smooth),
    transform 0.6s var(--ease-smooth);
}

.pill-anchor.is-visible {
  opacity: 1;
  transform: none;
}

.pill-anchor.is-visible .pill-link {
  pointer-events: auto;
}

.pill-link {
  display: inline-block;
  border-radius: 999px;
}

.pill {
  display: block;
  border-radius: 999px;
  padding: 1.05rem 2.6rem;
  transition: transform 0.25s var(--ease-spring);
}

.pill span {
  color: var(--accent);
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: -0.02em;
}

.pill-link:hover .pill {
  transform: scale(1.04);
}

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

.site-footer {
  position: fixed;
  left: calc(24px + env(safe-area-inset-left));
  right: calc(24px + env(safe-area-inset-right));
  bottom: calc(24px + env(safe-area-inset-bottom));
  z-index: var(--z-ui);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 12px;
  padding: 1.05rem 2rem;
  border-radius: 999px;
  color: var(--muted-color);
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
}

.site-footer__mid {
  opacity: 0.55;
  text-align: center;
}

.site-footer__right {
  text-align: right;
}

@media (hover: none) {
  .site-footer__mid {
    display: none;
  }

  .site-footer {
    grid-template-columns: auto auto;
    justify-content: space-between;
  }
}

@media (hover: none) and (pointer: coarse) {
  .scroll-hint__arrow {
    animation-name: hint-pulse;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .js .top-nav,
  .js .site-footer {
    opacity: 0;
    transition:
      opacity 0.7s ease,
      transform 0.7s var(--ease-out);
  }

  .js .top-nav {
    transform: translateY(-10px);
  }

  .js .site-footer {
    transform: translateY(10px);
  }

  .js .scroll-dots {
    opacity: 0;
    transition: opacity 0.7s ease;
  }

  .js body.ready .top-nav {
    opacity: 1;
    transform: translateY(0);
    transition-delay: 0.5s;
  }

  .js body.ready .site-footer {
    opacity: 1;
    transform: translateY(0);
    transition-delay: 0.72s;
  }

  .js body.ready .scroll-dots {
    opacity: 1;
    transition-delay: 0.85s;
  }
}

@media (prefers-reduced-motion: reduce) {
  .scroll-hint__arrow {
    animation: none;
  }

  .press,
  .pill,
  .pill-anchor {
    transition: none;
  }
}

@media (max-width: 768px) and (orientation: portrait) {
  .top-nav {
    padding: calc(14px + env(safe-area-inset-top)) calc(18px + env(safe-area-inset-right)) 18px 18px;
  }

  .theme-toggle {
    width: 48px;
    height: 48px;
  }

  .scroll-hint {
    font-size: 4.2vw;
  }

  .scroll-dots {
    right: calc(7px + env(safe-area-inset-right));
    gap: 10px;
  }

  .scroll-dots__dot,
  .scroll-dots__dot span {
    width: 6px;
  }

  .scroll-dots__dot span {
    height: 6px;
    border-radius: 3px;
  }

  .scroll-dots__dot.is-active span {
    height: 18px;
  }

  .pill {
    padding: 0.95rem 2.2rem;
  }

  .pill span {
    font-size: 0.92rem;
  }

  .site-footer {
    left: calc(14px + env(safe-area-inset-left));
    right: calc(14px + env(safe-area-inset-right));
    bottom: calc(14px + env(safe-area-inset-bottom));
    padding: 0.85rem 1.2rem;
    font-size: 0.68rem;
  }
}

@media (max-height: 520px) and (orientation: landscape) {
  .top-nav {
    padding: 14px calc(18px + env(safe-area-inset-right)) 14px 18px;
  }

  .theme-toggle {
    width: 44px;
    height: 44px;
  }

  .scroll-hint {
    font-size: clamp(13px, 3.2vh, 18px);
  }

  .site-footer {
    left: calc(14px + env(safe-area-inset-left));
    right: calc(14px + env(safe-area-inset-right));
    bottom: 10px;
    padding: 0.6rem 1.2rem;
    font-size: 0.66rem;
  }
}