.ambient-page {
  --grid-left-line: clamp(2.4rem, 5.6vw, 5.8rem);
  --grid-right-line: calc(100vw - 0.6rem);
  --grid-right-gutter: clamp(0.9rem, 2vw, 1.8rem);
  --grid-inner-padding: clamp(1rem, 2vw, 1.6rem);
  --bg: #ffffff;
  --panel: rgba(255, 255, 255, 0.82);
  --panel-solid: #fbfcff;
  --paper: rgba(255, 255, 255, 0.93);
  --line: rgba(20, 20, 20, 0.22);
  --line-strong: rgba(20, 20, 20, 0.5);
  --ink: #121212;
  --ink-muted: rgba(18, 18, 18, 0.68);
  --interactive-fill: rgba(18, 18, 18, 0.05);
  --interactive-fill-strong: #121212;
  --interactive-ink-strong: #f8f5ef;
  --interactive-border: rgba(18, 18, 18, 0.7);
  --focus-ring: rgba(18, 18, 18, 0.18);
  --header-bg: rgba(255, 255, 255, 0.74);
  --ambient-cyan: rgba(20, 224, 255, 0.76);
  --ambient-lime: rgba(204, 255, 0, 0.5);
  --ambient-halo: rgba(255, 255, 255, 0.92);
  --ambient-opacity: 0.98;
  --ambient-blur: 54px;
  --ambient-drift-duration: 27s;
  --ambient-cyan-position: 18% 22%;
  --ambient-lime-position: 82% 76%;
  --ambient-cyan-size: 28%;
  --ambient-lime-size: 24%;
  --ambient-halo-position: 50% 52%;
  --ambient-halo-size: 30%;
  position: relative;
  min-height: 100vh;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.84), rgba(255, 255, 255, 0.28)),
    var(--bg);
  isolation: isolate;
}

:root[data-theme='dark'] .ambient-page {
  --line: rgba(255, 255, 255, 0.26);
  --line-strong: rgba(255, 255, 255, 0.58);
  --ink: #ffffff;
  --ink-muted: rgba(255, 255, 255, 0.82);
  --interactive-fill: rgba(255, 255, 255, 0.08);
  --interactive-fill-strong: #ffffff;
  --interactive-ink-strong: #111319;
  --interactive-border: rgba(255, 255, 255, 0.88);
  --focus-ring: rgba(255, 255, 255, 0.2);
  --header-bg: rgba(22, 24, 30, 0.9);
  --ambient-cyan: rgba(61, 176, 255, 0.28);
  --ambient-lime: rgba(204, 255, 0, 0.18);
  --ambient-halo: rgba(34, 37, 46, 0.8);
  --ambient-opacity: 0.78;
  --ambient-blur: 72px;
  background:
    linear-gradient(180deg, rgba(22, 24, 30, 0.96), rgba(15, 17, 22, 1)),
    var(--bg);
}

.ambient-page::before {
  content: "";
  position: fixed;
  inset: -10vh -8vw;
  pointer-events: none;
  z-index: 0;
  opacity: var(--ambient-opacity);
  background:
    radial-gradient(circle at var(--ambient-cyan-position), color-mix(in srgb, var(--ambient-cyan) 76%, white 24%) 0%, transparent var(--ambient-cyan-size)),
    radial-gradient(circle at var(--ambient-lime-position), color-mix(in srgb, var(--ambient-lime) 74%, white 26%) 0%, transparent var(--ambient-lime-size)),
    radial-gradient(circle at var(--ambient-halo-position), var(--ambient-halo) 0%, transparent var(--ambient-halo-size));
  filter: blur(var(--ambient-blur));
  transform: translate3d(0, 0, 0);
  animation: ambientDrift var(--ambient-drift-duration) ease-in-out infinite alternate;
}

.ambient-page.ambient-home {
  --ambient-opacity: 0.9;
  --ambient-blur: 58px;
  --ambient-cyan-position: 14% 28%;
  --ambient-lime-position: 76% 82%;
  --ambient-cyan-size: 32%;
  --ambient-lime-size: 30%;
  --ambient-halo-position: 48% 52%;
  --ambient-halo-size: 34%;
}

:root[data-theme='dark'] .ambient-page.ambient-home {
  --ambient-opacity: 0.7;
  --ambient-blur: 82px;
  --ambient-cyan-position: 18% 24%;
  --ambient-lime-position: 82% 76%;
  --ambient-cyan-size: 26%;
  --ambient-lime-size: 24%;
  --ambient-halo-position: 52% 46%;
  --ambient-halo-size: 42%;
}

.ambient-page.ambient-soft {
  --ambient-opacity: 0.84;
  --ambient-blur: 58px;
  --ambient-cyan-position: 18% 68%;
  --ambient-lime-position: 72% 64%;
  --ambient-cyan-size: 26%;
  --ambient-lime-size: 24%;
  --ambient-halo-position: 48% 44%;
  --ambient-halo-size: 28%;
}

:root[data-theme='dark'] .ambient-page.ambient-soft {
  --ambient-opacity: 0.66;
  --ambient-blur: 78px;
}

.ambient-page.ambient-portfolio {
  --ambient-opacity: 0.92;
  --ambient-blur: 52px;
  --ambient-cyan-position: 12% 34%;
  --ambient-lime-position: 86% 62%;
  --ambient-cyan-size: 30%;
  --ambient-lime-size: 26%;
  --ambient-halo-position: 52% 44%;
  --ambient-halo-size: 30%;
}

:root[data-theme='dark'] .ambient-page.ambient-portfolio {
  --ambient-opacity: 0.72;
  --ambient-blur: 78px;
  --ambient-cyan-size: 25%;
  --ambient-lime-size: 22%;
}

.ambient-page.ambient-reading {
  --ambient-opacity: 0.58;
  --ambient-blur: 66px;
  --ambient-drift-duration: 30s;
  --ambient-cyan-position: 14% 74%;
  --ambient-lime-position: 82% 26%;
  --ambient-cyan-size: 22%;
  --ambient-lime-size: 20%;
  --ambient-halo-position: 52% 50%;
  --ambient-halo-size: 24%;
}

:root[data-theme='dark'] .ambient-page.ambient-reading {
  --ambient-opacity: 0.52;
  --ambient-blur: 84px;
}

.ambient-shell {
  position: relative;
  z-index: 1;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow:
    0 24px 80px rgba(20, 20, 20, 0.06),
    0 0 0 1px rgba(255, 255, 255, 0.4) inset;
}

:root[data-theme='dark'] .ambient-shell {
  box-shadow:
    0 24px 80px rgba(0, 0, 0, 0.34),
    0 0 0 1px rgba(255, 255, 255, 0.04) inset;
}

.ambient-shell::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background: transparent;
}

:root[data-theme='dark'] .ambient-shell::before {
  background: transparent;
}

.ambient-shell > * {
  position: relative;
  z-index: 1;
}

.ambient-shell.ambient-shell-soft::before {
  background: transparent;
}

:root[data-theme='dark'] .ambient-shell.ambient-shell-soft::before {
  background: transparent;
}

.ambient-surface {
  background: var(--paper);
}

.neutral-hover {
  transition: background-color 180ms ease, color 180ms ease, border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.neutral-hover:hover,
.neutral-hover:focus-visible {
  background: var(--interactive-fill);
  color: inherit;
  box-shadow: inset 3px 0 0 var(--interactive-border);
  outline: none;
}

.neutral-fill:hover,
.neutral-fill:focus-visible {
  background: var(--interactive-fill-strong);
  border-color: var(--interactive-fill-strong);
  color: var(--interactive-ink-strong);
  box-shadow: 0 0 0 3px var(--focus-ring);
  outline: none;
}

.grid-shell {
  position: relative;
  width: 100%;
  margin: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  overflow: visible;
  box-shadow: none;
}

.grid-shell::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    linear-gradient(to right,
      transparent var(--grid-left-line),
      var(--line) var(--grid-left-line),
      var(--line) calc(var(--grid-left-line) + 1px),
      transparent calc(var(--grid-left-line) + 1px)
    ),
    linear-gradient(to right,
      transparent calc(var(--grid-right-line) - 1px),
      var(--line) calc(var(--grid-right-line) - 1px),
      var(--line) var(--grid-right-line),
      transparent var(--grid-right-line)
    );
}

.grid-shell > * {
  position: relative;
  z-index: 1;
}

.grid-shell .top-unified {
  min-height: 68px;
  border-left: none;
  border-right: none;
  border-radius: 0;
  background: transparent;
  padding-left: var(--grid-left-line);
  padding-right: var(--grid-right-gutter);
}

.grid-shell .site-footer-nav {
  background: rgba(255, 255, 255, 0.92);
}

.grid-shell .site-footer-meta {
  padding-left: var(--grid-left-line);
  padding-right: var(--grid-right-gutter);
}

.grid-shell-reading {
  --grid-left-line: clamp(1.6rem, 4vw, 3.2rem);
  --grid-right-line: calc(100vw - 0.5rem);
  --grid-right-gutter: clamp(0.75rem, 1.8vw, 1.25rem);
  --grid-inner-padding: clamp(0.9rem, 1.7vw, 1.25rem);
}

.grid-shell-reading .top-unified {
  min-height: 62px;
  padding-left: calc(var(--grid-left-line) + 0.55rem);
}

.site-footer-nav {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  min-height: 48px;
  width: 100%;
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.98);
  color: inherit;
}

.site-footer-nav a {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  min-height: 48px;
  padding: 0.64rem 0.5rem;
  border-right: 1px solid var(--line);
  color: inherit;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: clamp(0.74rem, 0.9vw, 0.96rem);
  font-weight: 700;
  transition: background-color 180ms ease, color 180ms ease;
}

.site-footer-nav a:last-child {
  border-right: none;
}

.site-footer-nav a:hover,
.site-footer-nav a:focus-visible {
  background: var(--interactive-fill-strong);
  color: var(--interactive-ink-strong);
  outline: none;
}

.site-footer-icon {
  display: none !important;
  width: 1.35rem !important;
  height: 1.35rem !important;
  max-width: 1.35rem;
  max-height: 1.35rem;
  fill: currentColor;
  flex: 0 0 auto;
}

.site-footer-meta {
  border-top: 1px solid var(--line);
  padding: 0.5rem 1.1rem 0.7rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 0.4rem 1.2rem;
  background: transparent;
  color: var(--ink-muted);
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.site-footer-meta p {
  margin: 0;
}

.site-footer-signoff {
  font-weight: 800;
  letter-spacing: 0.09em;
}

.site-guides-link {
  color: inherit;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 1.8rem;
  padding: 0.2rem 0.55rem;
  border: 1px solid color-mix(in srgb, white 32%, transparent);
  background: transparent;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18rem;
  transition: color 180ms ease, border-color 180ms ease, background-color 180ms ease;
}

.site-guides-link:hover,
.site-guides-link:focus-visible {
  color: var(--interactive-ink-strong);
  background: var(--interactive-fill-strong);
  border-color: var(--interactive-fill-strong);
  outline: none;
}

:root[data-theme='dark'] .site-footer-nav {
  background: rgba(13, 15, 20, 0.92);
  color: var(--ink);
}

:root[data-theme='dark'] .grid-shell .site-footer-nav {
  background: rgba(13, 15, 20, 0.88);
}

:root[data-theme='dark'] .site-footer-nav a {
  border-right-color: rgba(255, 255, 255, 0.26);
}

:root[data-theme='dark'] .site-footer-meta {
  color: rgba(255, 255, 255, 0.82);
}

:root[data-theme='dark'] .site-guides-link {
  border-color: rgba(255, 255, 255, 0.26);
}

@keyframes ambientDrift {
  0% {
    transform: translate3d(-3.2%, -2.2%, 0) scale(1);
  }
  50% {
    transform: translate3d(2.4%, 2.2%, 0) scale(1.035);
  }
  100% {
    transform: translate3d(-1.7%, 1.4%, 0) scale(1.02);
  }
}

@media (prefers-reduced-motion: reduce) {
  .ambient-page::before {
    animation: none;
  }
}

@media (max-width: 768px) {
  .ambient-page::before {
    inset: -8vh -10vw;
  }

  .ambient-page {
    --grid-left-line: 1rem;
    --grid-right-line: calc(100vw - 0.3rem);
    --grid-right-gutter: 0.6rem;
    --grid-inner-padding: 0.8rem;
  }

  .ambient-page:not(.ambient-home) {
    padding-bottom: calc(74px + env(safe-area-inset-bottom, 0px));
  }

  .ambient-page:not(.ambient-home) .ambient-shell {
    padding-bottom: calc(112px + env(safe-area-inset-bottom, 0px));
  }

  .site-footer-nav {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    width: 100vw;
    height: 74px;
    min-height: 74px;
    max-height: 74px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.98);
  }

  .site-footer-nav a {
    height: 74px;
    min-height: 74px;
    max-height: 74px;
    min-width: 0;
    padding: 0.55rem 0.35rem;
    flex-direction: column;
    gap: 0.34rem;
    font-size: 0.6rem;
    letter-spacing: 0.06em;
    line-height: 1.1;
    text-align: center;
    border-right: 1px solid var(--line);
    overflow: hidden;
  }

  .site-footer-nav a:not(.mobile-priority-link) {
    display: none;
  }

  .site-footer-nav a:last-child,
  .site-footer-nav a:nth-child(4) {
    border-right: none;
  }

  .site-footer-nav .site-footer-icon {
    display: block !important;
    width: 1.35rem !important;
    height: 1.35rem !important;
    min-width: 1.35rem;
    min-height: 1.35rem;
    max-width: 1.35rem !important;
    max-height: 1.35rem !important;
    object-fit: contain;
  }

  .site-footer-nav span {
    display: block;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .site-footer-meta {
    display: none;
  }

  .grid-shell .top-unified {
    padding-left: calc(var(--grid-left-line) + 0.55rem);
    padding-right: var(--grid-right-gutter);
  }

  .grid-shell .site-footer-meta {
    padding-left: var(--grid-left-line);
    padding-right: var(--grid-right-gutter);
  }
}