/* ============================= */
/* BingoBongo Changelog Popup    */
/* ============================= */

/* Overlay */
#changelogOverlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 1000;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

#changelogOverlay.hidden {
  display: none;
}

/* Popup panel */
#changelogPopup {
  background: #1e1e1e;
  border: 1px solid #444;
  border-bottom: none;
  border-radius: 16px 16px 0 0;
  width: 100%;
  max-width: 480px;
  max-height: 70vh;
  display: flex;
  flex-direction: column;
  animation: slideUp 0.25s ease;
  padding-bottom: max(env(safe-area-inset-bottom), 16px);
}

@keyframes slideUp {
  from { transform: translateY(60px); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}

/* Header */
#changelogHeader {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 18px 12px 18px;
  border-bottom: 1px solid #333;
  flex-shrink: 0;
}

#changelogHeader h2 {
  margin: 0;
  font-size: 16px;
  color: #eee;
  font-weight: 600;
}

#changelogVersionBadge {
  font-size: 11px;
  color: #888;
  background: #2a2a2a;
  border: 1px solid #444;
  border-radius: 20px;
  padding: 2px 9px;
}

/* Scrollable body */
#changelogBody {
  overflow-y: auto;
  padding: 14px 18px;
  flex: 1;
  -webkit-overflow-scrolling: touch;
}

/* Individual item */
.changelog-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 7px 0;
  border-bottom: 1px solid #2a2a2a;
  font-size: 13px;
  color: #ccc;
  line-height: 1.45;
}

.changelog-item:last-child {
  border-bottom: none;
}

/* Tag badges */
.changelog-tag {
  flex-shrink: 0;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 2px 7px;
  border-radius: 20px;
  margin-top: 2px;
  text-transform: uppercase;
}

.changelog-tag.new    { background: #1a3a1a; color: #5cb85c; border: 1px solid #2d5a2d; }
.changelog-tag.fix    { background: #3a2a1a; color: #e6a020; border: 1px solid #5a3f10; }
.changelog-tag.update { background: #1a2a3a; color: #5baee6; border: 1px solid #1d3f5a; }

/* Free-edition section divider */
.changelog-free-divider {
  font-size: 11px;
  color: #666;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 10px 0 4px 0;
}

/* Previous versions toggle */
#changelogPrevious {
  border-top: 1px solid #2a2a2a;
  flex-shrink: 0;
}

#changelogPrevBtn {
  width: 100%;
  background: none;
  border: none;
  color: #666;
  font-size: 12px;
  padding: 10px 18px;
  text-align: left;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: color 0.2s;
}

#changelogPrevBtn:hover { color: #999; }

#changelogPrevArrow {
  font-size: 10px;
  transition: transform 0.2s;
  display: inline-block;
}

#changelogPrevBody {
  max-height: 240px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  border-top: 1px solid #2a2a2a;
}

.changelog-prev-section {
  padding: 8px 18px 4px;
  border-bottom: 1px solid #1e1e1e;
}

.changelog-prev-section:last-child { border-bottom: none; }

.changelog-prev-version {
  font-size: 10px;
  color: #555;
  font-family: monospace;
  letter-spacing: 0.04em;
  margin-bottom: 4px;
  padding-top: 2px;
}

.changelog-prev-section .changelog-item {
  font-size: 12px;
  padding: 4px 0;
}

.changelog-prev-section .changelog-tag {
  font-size: 9px;
  padding: 1px 6px;
}

/* Footer */
#changelogFooter {
  padding: 12px 18px 0 18px;
  flex-shrink: 0;
}

#changelogGotItBtn {
  width: 100%;
  padding: 11px;
  font-size: 15px;
  background: #333;
  color: #eee;
  border: 1px solid #555;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s;
}

#changelogGotItBtn:hover {
  background: #444;
}