/* ─── Floating Theme Toggle ──────────────────────────────── */
.theme-toggle-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--bg-card, #fff);
  border: 1px solid var(--border-s, rgba(0,0,0,0.12));
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(0,0,0,0.12), 0 1px 4px rgba(0,0,0,0.07);
  transition: background 0.3s, border-color 0.3s, box-shadow 0.2s, transform 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}
.theme-toggle-float:hover {
  box-shadow: 0 6px 24px rgba(0,0,0,0.18), 0 2px 6px rgba(0,0,0,0.10);
  transform: translateY(-2px);
}
.float-icon { width: 19px; height: 19px; flex-shrink: 0; }
.float-moon { display: block; color: #999; }
.float-sun  { display: none; }

[data-theme="dark"] .float-moon { display: none; }
[data-theme="dark"] .float-sun  { display: block; color: #d4894a; }
[data-theme="dark"] .theme-toggle-float {
  background: rgba(212,137,74,0.12);
  border-color: rgba(212,137,74,0.3);
  box-shadow: 0 4px 20px rgba(0,0,0,0.45), 0 0 18px rgba(212,137,74,0.18);
}