/* Asterisk · Outside Nav — shared stylesheet.
   Canonical home for the navbar + left icon rail that wraps the Builder.
   Used both by the standalone /ui_kits/outside-nav doc page and by the
   Builder UI Kit (which composes the rest of the builder around it).

   Geometry comes straight from Figma /Outside-Nav:
     • Navbar  : 56px tall, white surface, hairline bottom border
     • Rail    : 56px wide, white surface, hairline right border
     • Nav btn : 56×56 outer hit target with 44×44 inner pill, 24px icon
     • Avatar  : 32×32 brand-gradient tile, bottom-left corner
*/

/* ---------------------------------- Icon filters
   The icon set ships as black-fill SVGs; these filter recipes recolor them
   to design-token colors. */
:root {
  /* gray-550 #7b7079 — resting nav icons */
  --ico-filter-rest: brightness(0) saturate(100%) invert(50%) sepia(7%) saturate(286%) hue-rotate(266deg) brightness(89%) contrast(85%);
  /* brand-500 #982a86 — hover + selected nav icons */
  --ico-filter-brand: brightness(0) saturate(100%) invert(20%) sepia(72%) saturate(2962%) hue-rotate(295deg) brightness(85%) contrast(98%);
  /* white */
  --ico-filter-white: brightness(0) invert(1);
  /* gray-700 — secondary button icons */
  --ico-filter-700: brightness(0) saturate(100%) invert(31%) sepia(5%) saturate(396%) hue-rotate(266deg) brightness(95%) contrast(85%);
}

/* ============================================================ Nav icon button
   Property 1=Resting / Hover / Selected. */
.on-nav-btn {
  width: 56px;
  height: 56px;
  border-radius: 8px;
  padding: 6px;
  background: transparent;
  border: 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex: none;
}
.on-nav-btn-inner {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 120ms ease;
}
.on-nav-btn-inner img {
  width: 24px;
  height: 24px;
  display: block;
}
/* Resting */
.on-nav-btn .on-nav-btn-inner img { filter: var(--ico-filter-rest); }
/* Hover */
.on-nav-btn:hover .on-nav-btn-inner,
.on-nav-btn[data-hover] .on-nav-btn-inner {
  background: var(--brand-50, #fbeff9);
}
.on-nav-btn:hover .on-nav-btn-inner img,
.on-nav-btn[data-hover] .on-nav-btn-inner img {
  filter: var(--ico-filter-brand);
}
/* Selected */
.on-nav-btn[aria-current="page"] .on-nav-btn-inner,
.on-nav-btn[data-selected] .on-nav-btn-inner {
  background: var(--brand-100, #e7c8e2);
}
.on-nav-btn[aria-current="page"] .on-nav-btn-inner img,
.on-nav-btn[data-selected] .on-nav-btn-inner img {
  filter: var(--ico-filter-brand);
}

/* ============================================================ Navbar */
.on-navbar {
  height: 56px;
  background: #fff;
  border-bottom: 1px solid var(--border-subtle, #ECE9EB);
  display: flex;
  align-items: center;
  padding: 0 16px 0 14px;
  gap: 12px;
}
.on-nav-logo {
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  flex: none;
}
.on-nav-logo img { width: 28px; height: 28px; display: block; }
.on-nav-title {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0 6px 0 8px;
  height: 36px;
  border-radius: 6px;
  font: 500 14px/20px var(--font-sans);
  color: var(--content-default);
  cursor: pointer;
  background: transparent;
  border: 0;
}
.on-nav-title:hover { background: var(--gray-100, #F5F4F5); }
.on-nav-title .chev {
  width: 16px; height: 16px;
  display: inline-flex; align-items: center; justify-content: center;
}
.on-nav-title .chev img { width: 14px; height: 14px; filter: var(--ico-filter-rest); }
.on-nav-kebab {
  width: 32px; height: 32px;
  border-radius: 6px;
  background: transparent; border: 0; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
}
.on-nav-kebab:hover { background: var(--gray-100, #F5F4F5); }
.on-nav-kebab img { width: 16px; height: 16px; filter: var(--ico-filter-rest); }
.on-nav-saving {
  margin-left: 8px;
  font: 400 14px/20px var(--font-sans);
  color: var(--gray-600, #564D54);
  opacity: 0;
}
.on-nav-spacer { flex: 1; }
.on-nav-trial {
  display: flex; align-items: center; gap: 8px;
  margin-right: 8px;
}
.on-nav-trial .label {
  font: 400 14px/20px var(--font-sans);
  color: var(--gray-600, #564D54);
}
.on-nav-link {
  background: transparent; border: 0; padding: 0;
  font: 500 14px/20px var(--font-sans);
  color: var(--brand-500, #982a86);
  cursor: pointer;
}
.on-nav-link:hover { text-decoration: underline; }
.on-nav-icon-btn {
  width: 32px; height: 32px;
  border-radius: 6px;
  background: transparent; border: 0; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
}
.on-nav-icon-btn:hover { background: var(--gray-100, #F5F4F5); }
.on-nav-icon-btn img { width: 18px; height: 18px; filter: var(--ico-filter-rest); }

.on-nav-secondary {
  height: 36px;
  border-radius: 6px;
  border: 1px solid var(--border-default, #D3CFD2);
  background: #fff;
  padding: 0 12px;
  font: 500 14px/20px var(--font-sans);
  color: var(--content-default);
  display: inline-flex; align-items: center; gap: 8px;
  cursor: pointer;
}
.on-nav-secondary:hover { background: var(--gray-50, #FAFAFA); }
.on-nav-secondary img { width: 16px; height: 16px; filter: var(--ico-filter-700); }
.on-nav-secondary.icon-only { width: 36px; padding: 0; justify-content: center; }

/* ============================================================ Left rail */
.on-left-rail {
  width: 56px;
  background: #fff;
  border-right: 1px solid var(--border-subtle, #ECE9EB);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 6px 0;
  gap: 0;
}
.on-left-rail .on-nav-btn:first-child {
  height: 50px;
  padding-top: 0;
}
.on-left-rail-spacer { flex: 1; }

/* Avatar slot — bottom-left tile under the rail */
.on-avatar-slot {
  width: 56px;
  height: 56px;
  background: #fff;
  border-right: 1px solid var(--border-subtle, #ECE9EB);
  border-top: 1px solid var(--border-subtle, #ECE9EB);
  display: flex;
  align-items: center;
  justify-content: center;
  flex: none;
}
.on-avatar {
  width: 32px; height: 32px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--brand-400, #C66EB8), var(--brand-600, #761c69));
  color: #fff;
  font: 600 12px/16px var(--font-sans);
  display: flex; align-items: center; justify-content: center;
  letter-spacing: .02em;
}