/* ============================================================
   LOADING, TOOLTIP, TOGGLE, LINK, SCROLL — Utility components.
   ============================================================ */

/* ── Skeleton loading ── */
.skeleton {
  background: var(--color-skeleton);
  border-radius: 4px;
  animation: skeleton-pulse 1.5s ease-in-out infinite;
}

@keyframes skeleton-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.skeleton--text { height: 16px; margin-bottom: 8px; }
.skeleton--heading { height: 24px; width: 60%; margin-bottom: 12px; }
.skeleton--image { height: 200px; }

/* ── Spinner ── */
.spinner {
  width: 24px;
  height: 24px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spinner-rotate 0.8s linear infinite;
}

@keyframes spinner-rotate {
  to { transform: rotate(360deg); }
}

/* ── Loading overlay ── */
.loading-overlay {
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}

/* ── Tooltip ── */
.tooltip {
  position: absolute;
  background: var(--color-text-primary);
  color: var(--color-tooltip-text);
  font-family: var(--font-body);
  font-size: 13px;
  padding: 8px 12px;
  border-radius: 4px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  max-width: 300px;
  z-index: 100;
  pointer-events: none;
}

/* ── Toggle ── */
.toggle {
  position: relative;
  width: 44px;
  height: 24px;
  background: var(--color-toggle-off);
  border: none;
  border-radius: 12px;
  cursor: pointer;
  padding: 0;
  transition: background 0.2s;
}

.toggle--on {
  background: var(--color-primary);     /* primary */
}

.toggle-handle {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  background: var(--color-toggle-handle);
  border-radius: 50%;
  transition: transform 0.2s;
}

.toggle--on .toggle-handle {
  transform: translateX(20px);
}

/* ── Link ── */
a.themed-link,
.themed-link {
  color: var(--color-accent);            /* accent — NOT blue */
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}

a.themed-link:hover,
.themed-link:hover {
  color: var(--color-accent-hover);
  text-decoration: underline;
}

/* ── Scroll-to-bottom ── */
.scroll-to-bottom {
  position: fixed;
  bottom: 96px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 20;

  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;

  background: var(--color-surface-base);
  border: 1px solid var(--color-border-subtle);
  border-radius: 0;
  box-shadow: 0 4px 12px rgba(var(--color-primary-rgb), 0.06);

  cursor: pointer;
  transition: background 0.2s, box-shadow 0.2s;
}

.scroll-to-bottom:hover {
  background: var(--color-surface-warm);
  box-shadow: 0 6px 16px rgba(var(--color-primary-rgb), 0.10);
}

.scroll-to-bottom:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-color: var(--focus-border);
}

.scroll-to-bottom__icon {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: var(--color-primary);
  stroke-width: 2;
  stroke-linecap: square;
  stroke-linejoin: miter;
}