/* HoverNote – lightweight hover note boxes */

.hover-note-box {
  --hn-bg: #1e1e24;
  --hn-text: #f0f0f5;
  --hn-border: rgba(255, 255, 255, 0.08);
  --hn-shadow: 0 12px 40px rgba(0, 0, 0, 0.35), 0 4px 12px rgba(0, 0, 0, 0.2);
  --hn-radius: 10px;
  --hn-max-width: 320px;
  --hn-font: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --hn-font-size: 13.5px;
  --hn-line-height: 1.55;
  --hn-padding: 12px 14px;
  --hn-arrow-size: 7px;

  position: fixed;
  z-index: 99999;
  max-width: var(--hn-max-width);
  padding: var(--hn-padding);
  background: var(--hn-bg);
  color: var(--hn-text);
  border: 1px solid var(--hn-border);
  border-radius: var(--hn-radius);
  box-shadow: var(--hn-shadow);
  font-family: var(--hn-font);
  font-size: var(--hn-font-size);
  line-height: var(--hn-line-height);
  letter-spacing: 0.01em;
  pointer-events: none;
  opacity: 0;
  transform: scale(0.96) translateY(4px);
  transition: opacity 0.16s ease, transform 0.16s ease;
  will-change: opacity, transform;
  word-wrap: break-word;
  white-space: normal;
}

.hover-note-box.is-visible {
  opacity: 1;
  transform: scale(1) translateY(0);
  pointer-events: auto;
}

.hover-note-box.is-light {
  --hn-bg: #ffffff;
  --hn-text: #1a1a1f;
  --hn-border: rgba(0, 0, 0, 0.08);
  --hn-shadow: 0 12px 40px rgba(0, 0, 0, 0.12), 0 4px 12px rgba(0, 0, 0, 0.06);
}

/* Arrow */
.hover-note-box::before {
  content: "";
  position: absolute;
  width: 0;
  height: 0;
  border: var(--hn-arrow-size) solid transparent;
}

/* Arrow positions */
.hover-note-box[data-placement="top"]::before {
  bottom: calc(var(--hn-arrow-size) * -2);
  left: 50%;
  transform: translateX(-50%);
  border-top-color: var(--hn-bg);
  border-bottom: 0;
}

.hover-note-box[data-placement="bottom"]::before {
  top: calc(var(--hn-arrow-size) * -2);
  left: 50%;
  transform: translateX(-50%);
  border-bottom-color: var(--hn-bg);
  border-top: 0;
}

.hover-note-box[data-placement="left"]::before {
  right: calc(var(--hn-arrow-size) * -2);
  top: 50%;
  transform: translateY(-50%);
  border-left-color: var(--hn-bg);
  border-right: 0;
}

.hover-note-box[data-placement="right"]::before {
  left: calc(var(--hn-arrow-size) * -2);
  top: 50%;
  transform: translateY(-50%);
  border-right-color: var(--hn-bg);
  border-left: 0;
}

/* Slightly offset arrow when near edge */
.hover-note-box[data-placement="top"][data-arrow-offset]::before,
.hover-note-box[data-placement="bottom"][data-arrow-offset]::before {
  left: var(--arrow-offset);
  transform: none;
}

/* Trigger styles (optional convenience) */
[data-hover-note],
.hover-note-trigger {
  cursor: help;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .hover-note-box {
    transition: none;
  }
}