/* ═══════════════════════════════════════════════════════════
   Floating Action Bar · pill-shaped, fixed bottom-right.
   Shows on snapshot.html only (Phase 2 scope). 5 affordances:
   Search · Inbox (+badge) · Feedback · Help · Marvin (dark pill).
   ═══════════════════════════════════════════════════════════ */

.fab {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 70;                    /* below drawer (100), above page */
  background: white;
  border-radius: 100px;
  padding: 6px 6px 6px 6px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  box-shadow: 0 8px 28px rgba(17,30,69,0.12), 0 2px 6px rgba(17,30,69,0.04);
  font-family: 'Onest', sans-serif;
  transition: gap 220ms var(--ease), padding 220ms var(--ease);
}

.fab-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border: none;
  background: transparent;
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-2);
  cursor: pointer;
  white-space: nowrap;
  text-decoration: none;
  border-radius: 100px;
  transition: background 160ms var(--ease), color 140ms var(--ease);
}
.fab-btn:hover {
  background: rgba(17,30,69,0.05);
  color: var(--ink-1);
}
.fab-btn-icon {
  font-size: 16px;
  width: 20px;
  text-align: center;
  opacity: 0.7;
  transition: opacity 140ms var(--ease);
}
.fab-btn:hover .fab-btn-icon { opacity: 1; }

.fab-btn-label {
  transition: max-width 220ms var(--ease), opacity 160ms var(--ease), margin 220ms var(--ease);
}

/* Notification badge · sits on top-right of the icon */
.fab-btn-badge {
  position: absolute;
  top: 2px;
  left: 22px;
  background: var(--adverse);
  color: white;
  font-family: 'Onest', sans-serif;
  font-weight: 700;
  font-size: 10px;
  padding: 1px 6px;
  border-radius: 100px;
  min-width: 18px;
  text-align: center;
  border: 2px solid white;
  line-height: 1.1;
}

/* Marvin button · dark navy pill that extends slightly past the bar's
   right edge per screenshot. The big "M" mark on the left. */
.fab-marvin {
  position: relative;
  margin-left: 6px;
  padding: 10px 18px 10px 10px;
  background: var(--mainframe);
  color: white;
  border-radius: 100px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: background 140ms var(--ease), padding 220ms var(--ease), margin 220ms var(--ease);
}
.fab-marvin:hover { background: #1a2f6a; }
.fab-marvin-mark {
  width: 28px; height: 28px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,0.08);
  border-radius: 50%;
  font-family: 'Onest', sans-serif;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: -0.02em;
  flex-shrink: 0;
}
.fab-marvin-label {
  transition: max-width 220ms var(--ease), opacity 160ms var(--ease), margin 220ms var(--ease);
}

/* ─────────────────────────────────────────────────────────
   Tooltip · dark pill above the button, fades in on hover
   ───────────────────────────────────────────────────────── */
.fab-btn[data-tooltip]::after,
.fab-marvin[data-tooltip]::after,
.fab-toggle[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  background: #2A3142;
  color: white;
  font-family: 'Onest', sans-serif;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.005em;
  padding: 6px 10px;
  border-radius: 6px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 140ms var(--ease), transform 140ms var(--ease);
  z-index: 1;
}
.fab-btn[data-tooltip]:hover::after,
.fab-marvin[data-tooltip]:hover::after,
.fab-toggle[data-tooltip]:hover::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ─────────────────────────────────────────────────────────
   Collapse toggle · small chevron handle at the left edge
   ───────────────────────────────────────────────────────── */
.fab-toggle {
  position: relative;
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  border-radius: 50%;
  cursor: pointer;
  color: var(--ink-3);
  margin-left: 4px;
  margin-right: 2px;
  transition: background 140ms var(--ease), color 140ms var(--ease);
}
.fab-toggle:hover {
  background: rgba(17,30,69,0.05);
  color: var(--ink-1);
}
.fab-toggle-icon {
  font-size: 18px;
  font-weight: 600;
  line-height: 1;
  transition: transform 220ms var(--ease);
}

/* ─────────────────────────────────────────────────────────
   Collapsed state · icons only, Marvin becomes a circle
   ───────────────────────────────────────────────────────── */
.fab.fab--collapsed { gap: 6px; padding: 8px; }
.fab.fab--collapsed .fab-btn-label,
.fab.fab--collapsed .fab-marvin-label {
  max-width: 0;
  opacity: 0;
  margin-left: -8px;
  overflow: hidden;
}
.fab.fab--collapsed .fab-btn {
  padding: 12px 14px;
  gap: 0;
}
.fab.fab--collapsed .fab-marvin {
  width: 48px;
  height: 48px;
  padding: 0;
  gap: 0;
  margin-left: 6px;
  border-radius: 50%;
  justify-content: center;
}
.fab.fab--collapsed .fab-marvin-label {
  display: none;
}
.fab.fab--collapsed .fab-toggle-icon {
  transform: rotate(180deg);
}

/* Hide the FAB while a drawer is open · the drawer takes focus and
   the FAB sits at the same z-tier as the scrim, which would look
   busy. Slide it offscreen. */
body.drawer-open .fab {
  opacity: 0;
  transform: translateX(20px);
  pointer-events: none;
  transition: opacity 200ms var(--ease), transform 200ms var(--ease);
}

/* Mobile: collapse labels, show icons only */
@media (max-width: 720px) {
  .fab { padding: 4px; gap: 2px; }
  .fab-btn-label,
  .fab-marvin-label { display: none; }
  .fab-marvin { padding: 6px; border-radius: 50%; }
  .fab-toggle { display: none; }
}