/* Floating pill navigation. Keeps the hooks used by gem JS: #navbar, #navbarNav (.show toggled by nav-toggle.js), .navbar-menu-list, #search-toggle, #light-toggle (+3 icons), #progress. */
.site-header {
  position: relative;
}
.pillnav {
  position: fixed;
  top: calc(12px + env(safe-area-inset-top, 0px));
  left: 50%;
  transform: translateX(-50%);
  z-index: 50;
  width: min(calc(100% - 24px), var(--page-max));
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px 6px 18px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--panel) 82%, transparent);
  backdrop-filter: blur(14px) saturate(1.4);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  border: 1px solid var(--border);
  box-shadow: var(--raised);
}
.pillnav__brand {
  font: 700 16px/1 var(--font-ui);
  letter-spacing: -0.02em;
  color: var(--text);
  text-decoration: none;
  white-space: nowrap;
  padding-right: 10px;
}
.pillnav__brand:hover {
  color: var(--text);
}
.pillnav__brand .accent-dot {
  margin-left: 1px;
}
.pillnav__panel {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
  min-width: 0;
}
.pillnav__list {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: 2px;
  list-style: none;
  margin: 0;
  padding: 0;
  overflow-x: auto;
  scrollbar-width: none;
}
.pillnav__list::-webkit-scrollbar {
  display: none;
}
.pillnav .nav-item {
  margin: 0;
}
.pillnav .nav-link {
  display: block;
  white-space: nowrap;
  font: 600 13px/1 var(--font-ui);
  color: var(--muted);
  text-decoration: none;
  padding: 9px 13px;
  border-radius: 999px;
  transition:
    background 0.15s,
    color 0.15s;
}
.pillnav .nav-link:hover {
  color: var(--text);
  background: var(--panel2);
}
.pillnav .nav-item.active .nav-link {
  color: var(--on-accent);
  background: var(--teal);
}
.pillnav__tools {
  display: flex;
  align-items: center;
  gap: 4px;
  padding-left: 6px;
  margin-left: 4px;
  border-left: 1px solid var(--border);
}
.pillnav__tools button {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 34px;
  min-width: 34px;
  padding: 0 10px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font: 500 11.5px/1 var(--font-mono);
  cursor: pointer;
  gap: 6px;
}
.pillnav__tools button:hover {
  background: var(--panel2);
  color: var(--text);
}
.pillnav__tools #search-toggle .nav-link {
  padding: 0;
  background: none;
  font: 500 11.5px/1 var(--font-mono);
  color: inherit;
}
.pillnav__tools #search-toggle .nav-link:hover {
  background: none;
}
.pillnav__toggle {
  display: none;
  appearance: none;
  margin-left: auto;
  width: 38px;
  height: 34px;
  border: 0;
  border-radius: 999px;
  background: var(--panel2);
  cursor: pointer;
  position: relative;
}
.pillnav__toggle .icon-bar {
  display: block;
  position: absolute;
  left: 11px;
  right: 11px;
  height: 2px;
  border-radius: 2px;
  background: var(--text);
  transition:
    transform 0.18s,
    opacity 0.18s;
}
.pillnav__toggle .top-bar {
  top: 11px;
}
.pillnav__toggle .middle-bar {
  top: 16px;
}
.pillnav__toggle .bottom-bar {
  top: 21px;
}
.pillnav__toggle:not(.collapsed) .top-bar {
  top: 16px;
  transform: rotate(45deg);
}
.pillnav__toggle:not(.collapsed) .middle-bar {
  opacity: 0;
}
.pillnav__toggle:not(.collapsed) .bottom-bar {
  top: 16px;
  transform: rotate(-45deg);
}
#progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 60;
  width: 100%;
  height: 3px;
  border: 0;
  background: transparent;
  appearance: none;
  -webkit-appearance: none;
}
#progress::-webkit-progress-bar {
  background: transparent;
}
#progress::-webkit-progress-value {
  background: var(--amber);
}
#progress::-moz-progress-bar {
  background: var(--amber);
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

@media (max-width: 860px) {
  .pillnav {
    flex-wrap: wrap;
    border-radius: 22px;
    padding: 6px 8px 6px 16px;
  }
  .pillnav__toggle {
    display: block;
  }
  .pillnav__panel {
    display: none;
    flex: 1 1 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    padding: 8px 0 6px;
  }
  .pillnav__panel.show {
    display: flex;
  }
  .pillnav__list {
    flex-direction: column;
    align-items: stretch;
    overflow: visible;
  }
  .pillnav .nav-link {
    padding: 12px 14px;
    border-radius: 12px;
    font-size: 14px;
  }
  .pillnav__tools {
    border-left: 0;
    margin-left: 0;
    padding: 6px 0 0;
    border-top: 1px solid var(--border);
    justify-content: space-between;
  }
}

/* ---- More menu ---- */
.pillnav__more {
  position: relative;
}
.pillnav__morebtn {
  appearance: none;
  background: transparent;
  border: 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
}
.pillnav__caret {
  transition: transform 0.18s ease;
}
.pillnav__more.is-open .pillnav__caret {
  transform: rotate(180deg);
}
.pillnav__more.active .pillnav__morebtn {
  color: var(--on-accent);
  background: var(--teal);
}
.pillnav__morelist {
  position: absolute;
  right: 0;
  top: calc(100% + 10px);
  z-index: 60;
  min-width: 200px;
  margin: 0;
  padding: 6px;
  list-style: none;
  border-radius: 16px;
  background: color-mix(in srgb, var(--panel) 94%, transparent);
  backdrop-filter: blur(14px) saturate(1.4);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  border: 1px solid var(--border);
  box-shadow: var(--raised);
}
.pillnav__morelist[hidden] {
  display: none;
}
.pillnav__moreitem {
  display: block;
  padding: 10px 14px;
  border-radius: 10px;
  font: 600 13px/1.1 var(--font-ui);
  color: var(--text);
  text-decoration: none;
}
.pillnav__moreitem:hover,
.pillnav__moreitem:focus-visible {
  background: var(--panel2);
  color: var(--text);
}
.pillnav__moreitem.is-current {
  color: var(--teal-text);
}
/* the list can overflow the scrolling main list: keep the dropdown above it */
.pillnav__list {
  overflow: visible;
}
/* ---- Effects toggle ---- */
#fx-toggle {
  gap: 6px;
}
.fx-toggle__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 8px var(--teal);
}
#fx-toggle[aria-pressed="false"] .fx-toggle__dot {
  background: var(--faint);
  box-shadow: none;
}
@media (max-width: 860px) {
  .pillnav__more {
    width: 100%;
  }
  .pillnav__morebtn {
    display: none;
  }
  .pillnav__morelist {
    position: static;
    display: block !important;
    min-width: 0;
    padding: 0;
    border: 0;
    box-shadow: none;
    background: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
  .pillnav__moreitem {
    padding: 12px 14px;
    font-size: 14px;
    color: var(--muted);
    font-weight: 600;
  }
  .pillnav__morelist li {
    list-style: none;
  }
}

/* ---- Touch targets: every nav control >= 44px on coarse pointers and in the phone sheet ---- */
@media (pointer: coarse), (max-width: 860px) {
  .pillnav__tools button {
    height: 44px;
    min-width: 44px;
  }
  .pillnav__toggle {
    width: 44px;
    height: 44px;
  }
  .pillnav__toggle .icon-bar {
    left: 13px;
    right: 13px;
  }
  .pillnav__toggle .top-bar {
    top: 14px;
  }
  .pillnav__toggle .middle-bar {
    top: 21px;
  }
  .pillnav__toggle .bottom-bar {
    top: 28px;
  }
  .pillnav__toggle:not(.collapsed) .top-bar,
  .pillnav__toggle:not(.collapsed) .bottom-bar {
    top: 21px;
  }
  .pillnav .nav-link {
    min-height: 44px;
    display: flex;
    align-items: center;
  }
  .pillnav__moreitem {
    min-height: 44px;
    display: flex;
    align-items: center;
  }
  .pillnav__brand {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
  }
}

/* tools row: tap targets are 44px everywhere */
.pillnav__tools button {
  min-height: 44px;
}

/* More-menu item icon (front matter nav_icon, e.g. the Playground flask) */
.pillnav__icon {
  width: 1.1em;
  margin-right: 8px;
  text-align: center;
  color: var(--teal-text);
}