/* ---- Site Nav ---- */

.site-nav {
  position: fixed;
  top: 0;
  inset-inline: 0;
  z-index: 50;
}

.site-nav::before {
  position: absolute;
  z-index: 0;
  inset: 0;
  content: "";
  background: color-mix(in srgb, var(--color-bg) 75%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: background-color var(--transition-base);
}

.site-nav__inner {
  position: relative;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 3.5rem;
}

.site-nav__logo {
  position: relative;
  z-index: 6;
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
}

.site-nav__logo:hover {
  color: var(--color-accent);
}

.site-nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.site-nav__menu-list {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  padding: 0;
  margin: 0;
  list-style: none;
}

.site-nav__menu-item {
  display: flex;
}

.site-nav__link {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-weight: 500;
  transition: color var(--transition-fast);
}

.site-nav__link:hover,
.site-nav__link.is-active {
  color: var(--color-accent);
}

.site-nav__link-number,
.site-nav__link-arrow,
.site-nav__utilities-heading,
.site-nav__stagger-layer {
  display: none;
}

.site-nav__link.is-active {
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-thickness: 2px;
}

.site-nav__backdrop {
  position: fixed;
  z-index: 1;
  top: 3.5rem;
  inset-inline: 0;
  bottom: 0;
  visibility: hidden;
  background: rgb(8 15 24 / 0.55);
  opacity: 0;
  pointer-events: none;
  transition:
    opacity 220ms ease,
    visibility 0s linear 220ms;
}

.site-nav__backdrop.is-visible {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
  transition-delay: 0s;
}

.site-nav__utility-label {
  display: none;
}

.site-nav__toggle {
  position: relative;
  z-index: 6;
  display: none;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  color: var(--color-text);
  background: transparent;
  border: 0;
  border-radius: var(--radius);
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  transition:
    color var(--transition-fast),
    transform var(--transition-fast);
}

.site-nav__toggle:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.site-nav__toggle:active {
  transform: scale(0.92);
}

.site-nav__toggle[aria-expanded="true"] {
  color: var(--color-accent);
}

.site-nav__toggle-icon {
  position: relative;
  display: block;
  width: 1.375rem;
  height: 1rem;
}

.site-nav__toggle-bar {
  position: absolute;
  inset-inline: 0;
  height: 2px;
  background: currentcolor;
  border-radius: 999px;
  transform-origin: center;
  transition:
    top 220ms cubic-bezier(0.4, 0, 0.2, 1),
    transform 220ms cubic-bezier(0.4, 0, 0.2, 1),
    opacity 140ms ease;
}

.site-nav__toggle-bar--top {
  top: 0;
}

.site-nav__toggle-bar--middle {
  top: 7px;
}

.site-nav__toggle-bar--bottom {
  top: 14px;
}

.site-nav__toggle[aria-expanded="true"] .site-nav__toggle-bar--top {
  top: 7px;
  transform: rotate(45deg);
}

.site-nav__toggle[aria-expanded="true"] .site-nav__toggle-bar--middle {
  opacity: 0;
  transform: scaleX(0);
}

.site-nav__toggle[aria-expanded="true"] .site-nav__toggle-bar--bottom {
  top: 7px;
  transform: rotate(-45deg);
}

@media (max-width: 64rem) {
  .site-nav {
    --stagger-menu-width: min(30rem, 100vw);
  }

  .site-nav::before {
    transition:
      background-color var(--transition-base),
      border-color var(--transition-base);
  }

  .site-nav.is-menu-open::before {
    background: color-mix(in srgb, var(--color-bg) 88%, transparent);
  }

  .site-nav__toggle {
    display: inline-flex;
  }

  .site-nav__stagger-layer {
    position: fixed;
    top: 0;
    inset-inline-end: 0;
    bottom: 0;
    display: block;
    width: var(--stagger-menu-width);
    visibility: hidden;
    pointer-events: none;
    transform: translateX(105%);
    transition:
      transform 520ms cubic-bezier(0.76, 0, 0.24, 1),
      visibility 0s linear 620ms;
  }

  [dir="rtl"] .site-nav__stagger-layer {
    transform: translateX(-105%);
  }

  .site-nav__stagger-layer--back {
    z-index: 2;
    background: color-mix(in srgb, var(--color-accent) 62%, var(--color-bg));
    transition-delay: 110ms, 620ms;
  }

  .site-nav__stagger-layer--front {
    z-index: 3;
    width: calc(var(--stagger-menu-width) - 0.45rem);
    background: color-mix(
      in srgb,
      var(--color-accent) 28%,
      var(--color-surface)
    );
    transition-delay: 55ms, 620ms;
  }

  .site-nav.is-menu-open .site-nav__stagger-layer {
    visibility: visible;
    transform: translateX(0);
    transition-delay: 0s;
  }

  .site-nav.is-menu-open .site-nav__stagger-layer--front {
    transition-delay: 70ms, 0s;
  }

  .site-nav__links {
    position: fixed;
    z-index: 4;
    top: 0;
    inset-inline-end: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    width: calc(var(--stagger-menu-width) - 0.9rem);
    padding: clamp(5.5rem, 13vh, 7.5rem) clamp(1.25rem, 5vw, 2.5rem)
      var(--space-lg);
    overflow-y: auto;
    overscroll-behavior: contain;
    color: var(--color-text);
    background:
      radial-gradient(
        circle at 100% 0%,
        color-mix(in srgb, var(--color-accent) 14%, transparent),
        transparent 42%
      ),
      var(--color-bg);
    border-inline-start: 1px solid var(--color-border);
    box-shadow: -1.25rem 0 3rem rgb(8 15 24 / 0.22);
    gap: var(--space-xl);
    visibility: hidden;
    pointer-events: none;
    clip-path: inset(0 0 0 100%);
    transition:
      clip-path 440ms cubic-bezier(0.76, 0, 0.24, 1),
      visibility 0s linear 440ms;
  }

  [dir="rtl"] .site-nav__links {
    clip-path: inset(0 100% 0 0);
  }

  .site-nav__links.is-open {
    visibility: visible;
    pointer-events: auto;
    clip-path: inset(0);
    transition-delay: 125ms, 0s;
  }

  .site-nav__menu-list {
    display: flex;
    flex: 0 0 auto;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .site-nav__menu-item {
    display: block;
    overflow: hidden;
  }

  .site-nav__link {
    position: relative;
    display: grid;
    grid-template-columns: 2rem minmax(0, 1fr) auto;
    align-items: baseline;
    width: 100%;
    min-height: 3.75rem;
    padding-block: 0.35rem;
    color: var(--color-text);
    font-size: clamp(2rem, 6vw, 3.4rem);
    font-weight: 650;
    letter-spacing: -0.045em;
    line-height: 1;
    text-decoration: none;
    opacity: 0;
    transform: translateY(115%) rotate(2deg);
    transform-origin: bottom left;
    transition:
      color 180ms ease,
      opacity 240ms ease,
      transform 480ms cubic-bezier(0.16, 1, 0.3, 1);
  }

  .site-nav__link:hover,
  .site-nav__link:focus-visible,
  .site-nav__link.is-active {
    color: var(--color-accent);
    background: transparent;
  }

  .site-nav__link.is-active {
    text-decoration: none;
    box-shadow: none;
  }

  [dir="rtl"] .site-nav__link {
    transform-origin: bottom right;
  }

  .site-nav.is-menu-open .site-nav__link {
    opacity: 1;
    transform: translateY(0) rotate(0);
  }

  .site-nav.is-menu-open .site-nav__menu-item:nth-child(1) .site-nav__link {
    transition-delay: 260ms;
  }

  .site-nav.is-menu-open .site-nav__menu-item:nth-child(2) .site-nav__link {
    transition-delay: 320ms;
  }

  .site-nav.is-menu-open .site-nav__menu-item:nth-child(3) .site-nav__link {
    transition-delay: 380ms;
  }

  .site-nav.is-menu-open .site-nav__menu-item:nth-child(4) .site-nav__link {
    transition-delay: 440ms;
  }

  .site-nav.is-menu-open .site-nav__menu-item:nth-child(5) .site-nav__link {
    transition-delay: 500ms;
  }

  .site-nav__link-number {
    display: inline-block;
    color: var(--color-text-muted);
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    transform: translateY(-0.4rem);
  }

  .site-nav__link-label {
    min-width: 0;
  }

  .site-nav__link-arrow {
    display: inline-block;
    color: var(--color-text-muted);
    font-size: 0.9rem;
    font-weight: 400;
    opacity: 0;
    transform: translate(-0.65rem, -0.35rem);
    transition:
      color 180ms ease,
      opacity 180ms ease,
      transform 220ms cubic-bezier(0.16, 1, 0.3, 1);
  }

  [dir="rtl"] .site-nav__link-arrow {
    transform: translate(0.65rem, -0.35rem) scaleX(-1);
  }

  .site-nav__link:hover .site-nav__link-arrow,
  .site-nav__link:focus-visible .site-nav__link-arrow,
  .site-nav__link.is-active .site-nav__link-arrow {
    color: var(--color-accent);
    opacity: 1;
    transform: translate(0, -0.35rem);
  }

  [dir="rtl"] .site-nav__link:hover .site-nav__link-arrow,
  [dir="rtl"] .site-nav__link:focus-visible .site-nav__link-arrow,
  [dir="rtl"] .site-nav__link.is-active .site-nav__link-arrow {
    transform: translate(0, -0.35rem) scaleX(-1);
  }

  .site-nav__utility-label {
    display: inline;
  }

  html.is-nav-open,
  html.is-nav-open body {
    overflow: hidden;
  }

  html.is-nav-open .magnetic-scrollbar--page {
    pointer-events: none;
  }

  .site-nav__backdrop {
    top: 0;
  }
}

/* ---- Language switcher ---- */

.site-nav__utilities {
  position: relative;
  display: flex;
  align-items: center;
  height: 2.75rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color var(--transition-fast);
}

.site-nav__utilities:focus-within {
  border-color: var(--color-accent);
}

.language-switcher {
  position: relative;
  display: flex;
  align-items: center;
}

.language-switcher__toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  padding: 0;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  cursor: pointer;
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast),
    transform var(--transition-fast);
}

.language-switcher__toggle:hover,
.language-switcher__toggle:focus-visible,
.language-switcher__toggle[aria-expanded="true"] {
  color: var(--color-accent);
  background: var(--color-bg-alt);
  border-color: var(--color-accent);
}

.language-switcher__toggle:active {
  transform: translateY(1px);
}

.language-switcher__icon {
  width: 1.125rem;
  height: 1.125rem;
  fill: none;
  stroke: currentcolor;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.language-switcher__menu {
  position: absolute;
  top: calc(100% + var(--space-sm));
  inset-inline-end: 0;
  z-index: 60;
  width: min(15rem, calc(100vw - (2 * var(--space-md))));
  padding: var(--space-sm);
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 0.75rem 2rem rgb(0 0 0 / 0.16);
}

.language-switcher__menu[hidden] {
  display: none;
}

.language-switcher__heading {
  margin: 0;
  padding: var(--space-xs) var(--space-sm) var(--space-sm);
  color: var(--color-text-muted);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.language-switcher__options {
  display: grid;
  gap: var(--space-xs);
}

.language-switcher__option {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: var(--space-sm);
  align-items: center;
  min-height: 2.75rem;
  padding: var(--space-xs) var(--space-sm);
  color: var(--color-text);
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: var(--text-sm);
  font-weight: 500;
  text-decoration: none;
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast);
}

.language-switcher__option:hover,
.language-switcher__option:focus-visible {
  color: var(--color-accent);
  background: var(--color-bg-alt);
  border-color: var(--color-border);
}

.language-switcher__option.is-current {
  color: var(--color-accent);
  background: var(--color-bg-alt);
  border-color: color-mix(
    in srgb,
    var(--color-accent) 30%,
    var(--color-border)
  );
}

.language-switcher__code {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  min-height: 1.625rem;
  padding-inline: 0.35rem;
  color: var(--color-text-muted);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: calc(var(--radius) / 2);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.language-switcher__name {
  min-width: 0;
}

.language-switcher__check {
  width: 1rem;
  height: 1rem;
  fill: none;
  stroke: currentcolor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

@media (max-width: 64rem) {
  .language-switcher {
    width: 100%;
    flex-direction: column;
  }

  .language-switcher__menu {
    position: static;
    width: 100%;
    margin-top: var(--space-sm);
  }
}

/* ---- Magnetic scrollbars ---- */

.magnetic-scrollbar {
  position: fixed;
  inset-block: 0;
  inset-inline-end: 0;
  z-index: 100;
  width: 0.5rem;
  touch-action: none;
  user-select: none;
  opacity: 0.82;
  contain: layout paint;
  transition: opacity var(--transition-fast);
}

.magnetic-scrollbar[hidden] {
  display: none;
}

.magnetic-scrollbar--page {
  inset-inline-end: auto;
  right: 0;
}

.magnetic-scrollbar--panel {
  position: absolute;
  inset-block: 0;
  inset-inline-end: 0;
  z-index: 2;
  width: 0.375rem;
}

.magnetic-scrollbar--horizontal {
  position: absolute;
  inset-block: auto 0;
  inset-inline: 0;
  z-index: 2;
  width: auto;
  height: 0.375rem;
}

.magnetic-scrollbar__thumb {
  position: absolute;
  inset-block-start: 0;
  inset-inline-start: 50%;
  width: 0.25rem;
  height: 1px;
  margin-inline-start: -0.125rem;
  background: var(--color-scrollbar-thumb);
  cursor: grab;
  transition: background-color var(--transition-fast);
}

.magnetic-scrollbar--horizontal .magnetic-scrollbar__thumb {
  inset-block-start: auto;
  inset-inline-start: auto;
  left: 0;
  bottom: 0;
  width: 1px;
  height: 0.25rem;
  margin-block-start: 0;
  margin-inline-start: 0;
}

.magnetic-scrollbar--panel .magnetic-scrollbar__thumb {
  inset-inline: auto 0;
  margin-inline-start: 0;
}

.magnetic-scrollbar--page .magnetic-scrollbar__thumb {
  inset-inline-start: auto;
  right: 0;
  margin-inline-start: 0;
}

.magnetic-scrollbar.is-active {
  opacity: 1;
}

.magnetic-scrollbar.is-active .magnetic-scrollbar__thumb {
  background: var(--color-scrollbar-thumb-hover);
}

.magnetic-scrollbar.is-dragging .magnetic-scrollbar__thumb {
  cursor: grabbing;
}

/* ---- Background settings ---- */

.background-picker {
  position: relative;
  border-inline-start: 1px solid var(--color-border);
}

.background-picker__toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  padding: 0;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  cursor: pointer;
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast);
}

.background-picker__toggle:hover,
.background-picker__toggle[aria-expanded="true"] {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.site-nav__utilities .background-picker__toggle {
  width: 2.625rem;
  height: calc(2.75rem - 2px);
  padding: 0;
  background: transparent;
  border: 0;
  border-radius: 0;
}

.site-nav__utilities .background-picker__toggle:hover,
.site-nav__utilities .background-picker__toggle:focus-visible,
.site-nav__utilities .background-picker__toggle[aria-expanded="true"] {
  color: var(--color-accent);
  background-color: var(--color-bg-alt);
}

.background-picker__icon {
  width: 1.125rem;
  height: 1.125rem;
  flex: 0 0 auto;
}

.background-picker__panel {
  --background-panel-max-height: calc(100dvh - 5rem);

  position: absolute;
  top: calc(100% + var(--space-sm));
  inset-inline-end: 0;
  z-index: 60;
  display: grid;
  width: min(23rem, calc(100vw - 2rem));
  max-height: var(--background-panel-max-height);
  overflow: hidden;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 0.75rem 2rem rgb(0 0 0 / 0.16);
}

.background-picker__panel[hidden],
.background-picker__settings[hidden] {
  display: none;
}

.background-picker__panel-header {
  display: none;
}

.background-picker__panel-title {
  font-size: var(--text-lg);
}

.background-picker__close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  color: var(--color-text);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  cursor: pointer;
}

.background-picker__close:hover,
.background-picker__close:focus-visible {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.background-picker__close svg {
  width: 1.125rem;
  height: 1.125rem;
}

.background-picker__panel-scroll {
  min-height: 0;
  max-height: calc(var(--background-panel-max-height) - 2px);
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: var(--space-lg);
}

.background-picker__panel-scroll::-webkit-scrollbar {
  width: 0.375rem;
}

.background-picker__panel-scroll::-webkit-scrollbar-track {
  background: transparent;
}

.background-picker__panel-scroll::-webkit-scrollbar-thumb {
  min-height: 2rem;
  background-color: var(--color-scrollbar-thumb);
  background-clip: padding-box;
  border: 0.0625rem solid transparent;
  border-radius: 0;
}

.background-picker__panel-scroll::-webkit-scrollbar-thumb:hover {
  background-color: var(--color-scrollbar-thumb-hover);
}

.background-picker__options {
  display: grid;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

.background-picker__choice {
  position: relative;
}

.background-picker__choice input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.background-picker__choice-content {
  display: grid;
  grid-template-columns: 4.5rem minmax(0, 1fr);
  align-items: center;
  gap: var(--space-sm);
  min-height: 3.75rem;
  padding: var(--space-xs);
  color: var(--color-text-muted);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  cursor: pointer;
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    color var(--transition-fast);
}

.background-picker__choice-content:hover {
  border-color: var(--color-accent);
}

.background-picker__choice input:checked + .background-picker__choice-content {
  color: var(--color-text);
  border-color: var(--color-accent);
  box-shadow: 0 0 0 1px var(--color-accent);
}

.background-picker__choice
  input:focus-visible
  + .background-picker__choice-content {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.background-picker__preview {
  position: relative;
  display: block;
  height: 2.75rem;
  overflow: hidden;
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: calc(var(--radius) - 2px);
}

.background-picker__choice-copy {
  display: grid;
  gap: 0.125rem;
  min-width: 0;
}

.background-picker__choice-copy strong {
  color: var(--color-text);
  font-size: var(--text-sm);
}

.background-picker__choice-copy span {
  font-size: var(--text-xs);
  line-height: 1.35;
}

.background-picker__settings {
  margin-top: var(--space-lg);
}

.background-picker__reset {
  width: 100%;
  margin-top: var(--space-lg);
  padding: 0.5rem var(--space-md);
  color: var(--color-text);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  cursor: pointer;
  font: inherit;
  font-size: var(--text-sm);
  font-weight: 600;
  transition:
    border-color var(--transition-fast),
    color var(--transition-fast);
}

.background-picker__reset:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.background-picker__status {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* ---- Appearance settings ---- */

.appearance {
  position: relative;
  border-inline-start: 1px solid var(--color-border);
}

.appearance__toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  padding: 0;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  cursor: pointer;
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast);
}

.appearance__toggle:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.site-nav__utilities .language-switcher__toggle,
.site-nav__utilities .appearance__toggle {
  width: 2.625rem;
  height: calc(2.75rem - 2px);
  padding: 0;
  background: transparent;
  border: 0;
  border-radius: 0;
}

.site-nav__utilities .language-switcher__toggle {
  border-start-start-radius: calc(var(--radius) - 1px);
  border-end-start-radius: calc(var(--radius) - 1px);
}

.site-nav__utilities .appearance__toggle {
  border-start-end-radius: calc(var(--radius) - 1px);
  border-end-end-radius: calc(var(--radius) - 1px);
}

.appearance__toggle:focus-visible,
.appearance__toggle:hover:not(:disabled) {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.site-nav__utilities .language-switcher__toggle:hover,
.site-nav__utilities .language-switcher__toggle:focus-visible,
.site-nav__utilities .language-switcher__toggle[aria-expanded="true"],
.site-nav__utilities .appearance__toggle:focus-visible,
.site-nav__utilities .appearance__toggle:hover:not(:disabled) {
  color: var(--color-accent);
  background-color: var(--color-bg-alt);
}

.appearance__icon {
  width: 1.125rem;
  height: 1.125rem;
  flex: 0 0 auto;
}

.appearance__toggle .icon-moon {
  display: none;
}

[data-theme="dark"] .appearance__toggle .icon-sun {
  display: none;
}

[data-theme="dark"] .appearance__toggle .icon-moon {
  display: block;
}

/* ---- Utility popover motion ---- */
:is(.language-switcher__menu, .background-picker__panel) {
  opacity: 1;
  scale: 1;
  translate: 0 0;
  transform-origin: top center;
  transition:
    opacity var(--transition-fast),
    scale var(--transition-fast),
    translate var(--transition-fast);
}

.is-popover-leaving {
  pointer-events: none;
}

:is(.language-switcher__menu, .background-picker__panel).is-popover-entering,
:is(.language-switcher__menu, .background-picker__panel).is-popover-leaving {
  opacity: 0;
  scale: 0.98;
  translate: 0 -0.375rem;
}

@media (prefers-reduced-motion: reduce) {
  :is(.language-switcher__menu, .background-picker__panel) {
    transition: none;
  }
}

.has-magnetic-scrollbars .background-picker__panel-scroll::-webkit-scrollbar {
  display: none;
  width: 0;
  height: 0;
}

.appearance__help {
  color: var(--color-text-muted);
  font-size: var(--text-xs);
}

.appearance__group {
  min-width: 0;
  padding: 0;
  border: 0;
  transition: opacity var(--transition-fast);
}

.appearance__group[disabled] {
  opacity: 0.45;
  pointer-events: none;
}

.appearance__group + .appearance__group {
  margin-top: var(--space-lg);
}

.background-picker__settings .appearance__group + .appearance__group {
  margin-top: var(--space-lg);
}

.appearance__group legend {
  margin-bottom: var(--space-sm);
  font-size: var(--text-sm);
  font-weight: 700;
}

.appearance__color-choice input,
.appearance__switch input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.appearance__color-options {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

.appearance__color-choice {
  position: relative;
}

.appearance__color-content {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  min-height: 2.25rem;
  padding: 0.375rem;
  color: var(--color-text-muted);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  cursor: pointer;
  font-size: var(--text-xs);
  line-height: 1.2;
}

.appearance__color-choice input:checked + .appearance__color-content {
  color: var(--color-text);
  border-color: var(--color-accent);
  box-shadow: 0 0 0 1px var(--color-accent);
}

.appearance__color-choice input:focus-visible + .appearance__color-content {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.appearance__swatch {
  width: 1rem;
  height: 1rem;
  flex: 0 0 auto;
  background: var(--swatch-color);
  border: 1px solid rgb(255 255 255 / 0.45);
  border-radius: 50%;
  box-shadow: 0 0 0 1px rgb(0 0 0 / 0.14);
}

.appearance__swatch--palette-default {
  --swatch-color: linear-gradient(135deg, #285f9e 50%, #77afea 50%);
}

.appearance__swatch--palette-nordic {
  --swatch-color: linear-gradient(135deg, #4a6f99 50%, #88c0d0 50%);
}

.appearance__swatch--palette-teal {
  --swatch-color: linear-gradient(135deg, #197567 50%, #63c9b5 50%);
}

.appearance__swatch--palette-violet {
  --swatch-color: linear-gradient(135deg, #6b4c8f 50%, #c3a2df 50%);
}

.appearance__swatch--palette-amber {
  --swatch-color: linear-gradient(135deg, #8a5a13 50%, #e6b75f 50%);
}

.appearance__swatch--palette-rose {
  --swatch-color: linear-gradient(135deg, #9a3f5c 50%, #e28ba7 50%);
}

.appearance__swatch--active-palette {
  --swatch-color: var(--color-accent);
}

.appearance__setting-list {
  display: grid;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

.appearance__range-list {
  display: grid;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

.appearance__range-setting {
  display: grid;
  gap: 0.35rem;
  padding: 0.625rem var(--space-sm);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.appearance__range-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-sm);
}

.appearance__range-header output {
  min-width: 3ch;
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
  text-align: end;
}

.appearance__range {
  width: 100%;
  margin: 0.25rem 0 0;
  accent-color: var(--color-accent);
  cursor: pointer;
}

.appearance__color-input {
  width: 100%;
  height: 2.25rem;
  padding: 0.15rem;
  margin-top: 0.25rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: calc(var(--radius) - 2px);
  cursor: pointer;
}

.appearance__color-input:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.appearance__setting {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-md);
  padding: 0.625rem var(--space-sm);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  cursor: pointer;
  transition:
    border-color var(--transition-fast),
    opacity var(--transition-fast);
}

.appearance__setting:hover {
  border-color: var(--color-accent);
}

.appearance__setting-content {
  display: grid;
  gap: 0.125rem;
  min-width: 0;
}

.appearance__setting-label {
  color: var(--color-text);
  font-size: var(--text-sm);
  font-weight: 600;
}

.appearance__setting-help {
  color: var(--color-text-muted);
  font-size: var(--text-xs);
  line-height: 1.4;
}

.appearance__switch {
  position: relative;
  display: inline-flex;
  flex: 0 0 auto;
}

.appearance__switch-control {
  position: relative;
  display: block;
  width: 2.5rem;
  height: 1.375rem;
  background: var(--color-border);
  border-radius: 999px;
  transition: background-color var(--transition-fast);
}

.appearance__switch-control::after {
  position: absolute;
  top: 0.1875rem;
  left: 0.1875rem;
  width: 1rem;
  height: 1rem;
  background: var(--color-surface);
  border-radius: 50%;
  box-shadow: 0 1px 3px rgb(0 0 0 / 0.22);
  content: "";
  transition: transform var(--transition-fast);
}

.appearance__switch input:checked + .appearance__switch-control {
  background: var(--color-accent);
}

.appearance__switch input:checked + .appearance__switch-control::after {
  transform: translateX(1.125rem);
}

.appearance__switch input:focus-visible + .appearance__switch-control {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.appearance__setting.is-disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.appearance__setting.is-disabled:hover {
  border-color: var(--color-border);
}

.appearance__reset {
  width: 100%;
  margin-top: var(--space-lg);
  padding: 0.5rem var(--space-md);
  color: var(--color-text);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  cursor: pointer;
  font: inherit;
  font-size: var(--text-sm);
  font-weight: 600;
  transition:
    border-color var(--transition-fast),
    color var(--transition-fast);
}

.appearance__reset:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.appearance__status {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 64rem) {
  .background-picker,
  .appearance {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    max-width: 22rem;
  }

  .background-picker__panel {
    align-self: stretch;
    grid-template-rows: auto minmax(0, 1fr);
    text-align: start;
    --background-panel-max-height: calc(100dvh - 5rem);
  }

  .background-picker__panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    border-bottom: 1px solid var(--color-border);
  }

  .site-nav__utilities {
    align-self: stretch;
    flex-direction: column;
    align-items: stretch;
    height: auto;
    padding-top: var(--space-lg);
    margin-top: auto;
    background: transparent;
    border: 0;
    border-top: 1px solid var(--color-border);
    border-radius: 0;
    gap: var(--space-sm);
    opacity: 0;
    transition: opacity 260ms ease;
  }

  .site-nav.is-menu-open .site-nav__utilities {
    opacity: 1;
    transition-delay: 560ms;
  }

  .site-nav__utilities-heading {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin: 0 0 var(--space-xs);
    color: var(--color-text-muted);
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
  }

  .site-nav__utilities-heading::before {
    width: 1.5rem;
    height: 1px;
    background: var(--color-accent);
    content: "";
  }

  .site-nav__utilities .language-switcher,
  .site-nav__utilities .background-picker,
  .site-nav__utilities .appearance {
    position: static;
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    max-width: none;
    border: 0;
  }

  .site-nav__utilities .language-switcher__toggle,
  .site-nav__utilities .background-picker__toggle,
  .site-nav__utilities .appearance__toggle {
    justify-content: flex-start;
    width: 100%;
    height: 3rem;
    padding-inline: var(--space-md);
    gap: var(--space-sm);
    color: var(--color-text);
    background: color-mix(
      in srgb,
      var(--color-surface) 88%,
      var(--color-accent)
    );
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition:
      color var(--transition-fast),
      background-color var(--transition-fast),
      border-color var(--transition-fast),
      transform var(--transition-fast);
  }

  .site-nav__utilities .language-switcher__toggle:hover,
  .site-nav__utilities .language-switcher__toggle:focus-visible,
  .site-nav__utilities .language-switcher__toggle[aria-expanded="true"],
  .site-nav__utilities .background-picker__toggle:hover,
  .site-nav__utilities .background-picker__toggle:focus-visible,
  .site-nav__utilities .background-picker__toggle[aria-expanded="true"],
  .site-nav__utilities .appearance__toggle:focus-visible,
  .site-nav__utilities .appearance__toggle:hover:not(:disabled) {
    color: var(--color-accent);
    background: var(--color-bg-alt);
    border-color: color-mix(
      in srgb,
      var(--color-accent) 55%,
      var(--color-border)
    );
  }

  .site-nav__utilities .language-switcher__menu {
    position: static;
    width: 100%;
    margin-top: var(--space-sm);
    transform: none;
  }

  .site-nav__utilities .background-picker__panel {
    position: fixed;
    top: 4.25rem;
    right: auto;
    left: auto;
    inset-inline-end: var(--space-md);
    width: min(22rem, calc(100vw - (2 * var(--space-md))));
    max-height: var(--background-panel-max-height);
    margin-top: 0;
    transform: none;
  }
}

/* ---- Inline Link ---- */

.about-brief__text a,
.page-header__description a,
.timeline-entry__company a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.inline-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--color-border);
  transition:
    color var(--transition-fast),
    text-decoration-color var(--transition-fast);
}

.inline-link:hover {
  color: var(--color-text);
  text-decoration-color: var(--color-text);
}

/* ---- Buttons ---- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius);
  font-size: var(--text-sm);
  font-weight: 600;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
}

.btn--primary {
  background: var(--color-text);
  color: var(--color-bg);
}

.btn--primary:hover {
  background: var(--color-accent-hover);
  color: var(--color-bg);
}

.btn--outline {
  border-color: var(--color-border);
  color: var(--color-text);
}

.btn--outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* ---- Footer ---- */

.site-footer {
  background: color-mix(in srgb, var(--color-bg) 65%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-2xl);
  padding-block: var(--space-md);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  transition: background-color var(--transition-base);
}

.site-footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.site-footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.site-footer__link {
  color: var(--color-text-muted);
}

.site-footer__link:hover {
  color: var(--color-accent);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .magnetic-scrollbar,
  .magnetic-scrollbar__thumb,
  .site-nav__toggle,
  .site-nav__toggle-bar,
  .site-nav__links,
  .site-nav__stagger-layer,
  .site-nav__link,
  .site-nav__link-arrow,
  .site-nav__utilities,
  .site-nav__backdrop {
    transition: none;
  }
}