/* ==========================================================================
   Inline Tooltips (RSP-REQ-050)
   Two-tier tooltip system: quick tooltip on hover/tap, "Learn more" opens
   the existing explain modal.
   ========================================================================== */

/* Tooltip popover container — created dynamically by initTooltips() */
.tooltip-popover {
  position: fixed;
  z-index: 1100;
  max-width: 320px;
  padding: 10px 14px;
  background: var(--card-bg, #fff);
  color: var(--text, #333);
  border: 1px solid var(--border, #e0e0e0);
  border-radius: 8px;
  box-shadow: 0 4px 16px var(--shadow, rgba(0, 0, 0, 0.12));
  font-size: 0.88em;
  line-height: 1.5;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.15s ease, visibility 0.15s ease;
  pointer-events: none;
  word-wrap: break-word;
}

.tooltip-popover.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* Arrow / caret */
.tooltip-popover::before {
  content: "";
  position: absolute;
  width: 10px;
  height: 10px;
  background: var(--card-bg, #fff);
  border: 1px solid var(--border, #e0e0e0);
  transform: rotate(45deg);
}

/* Arrow above popover (popover below trigger) */
.tooltip-popover[data-placement="below"]::before {
  top: -6px;
  left: 50%;
  margin-left: -5px;
  border-right: none;
  border-bottom: none;
}

/* Arrow below popover (popover above trigger) */
.tooltip-popover[data-placement="above"]::before {
  bottom: -6px;
  left: 50%;
  margin-left: -5px;
  border-left: none;
  border-top: none;
}

/* Tooltip text */
.tooltip-popover__text {
  margin: 0;
}

/* "Learn more" link inside tooltip */
.tooltip-popover__learn-more {
  display: inline-block;
  margin-top: 6px;
  font-size: 0.85em;
  font-weight: 500;
  color: var(--secondary, #1976d2);
  text-decoration: none;
  cursor: pointer;
}

.tooltip-popover__learn-more:hover {
  text-decoration: underline;
}

.tooltip-popover__learn-more::after {
  content: " \2192"; /* right arrow */
}

/* Mobile: full-width up to 320px, positioned below trigger */
@media (max-width: 640px) {
  .tooltip-popover {
    left: 50% !important;
    transform: translateX(-50%);
    width: min(320px, calc(100vw - 32px));
  }

  .tooltip-popover[data-placement="below"] {
    margin-top: 8px;
  }

  .tooltip-popover[data-placement="above"] {
    margin-bottom: 8px;
  }
}

/* High-contrast focus outline for accessibility */
.explain-toggle:focus-visible + .tooltip-popover,
.explain-toggle:focus-visible ~ .tooltip-popover {
  outline: 2px solid var(--secondary, #1976d2);
  outline-offset: 2px;
}