/* ============================================================
   SeaScribe — Changelog / Syslog Overlay
   ============================================================ */

.changelog-overlay {
  position: fixed;
  top: 0; right: 0; bottom: 0; left: 0;
  z-index: 20000;
  background: rgba(0,0,0,0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 1;
  pointer-events: auto;
  transition: opacity 0.25s var(--ease-out);
}
.changelog-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.changelog-card {
  position: relative;
  background: var(--glass-bg-strong);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-2xl);
  box-shadow: var(--glass-shadow);
  padding: 24px 32px 20px;
  max-width: 540px;
  width: auto;
  min-width: 360px;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  color: var(--text);
}

.changelog-overlay:not(.hidden) .changelog-card {
  animation: changelogIn 0.4s var(--spring);
}
#about-overlay .changelog-card {
  max-width: 680px;
}
#syslog-overlay .changelog-card {
  max-width: 85vw;
}
.changelog-card h2 { margin: 0 0 12px; font-size: 1.3rem; flex-shrink: 0; padding-right: 32px; }

/* ---- 右上角关闭按钮 ---- */
.modal-close-x {
  position: absolute;
  top: 12px; right: 14px;
  width: 28px; height: 28px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  cursor: pointer;
  font-size: 1rem;
  color: var(--muted);
  display: flex;
  align-items: center; justify-content: center;
  transition: background-color var(--dur-fast), color var(--dur-fast), transform var(--dur-md) var(--spring);
  z-index: 1;
}
.modal-close-x:hover {
  background: var(--hover);
  color: var(--text);
  transform: rotate(90deg);
}


.changelog-body {
  overflow-y: auto;
  flex: 1;
  min-height: 0;
}
.changelog-body::-webkit-scrollbar { width: 4px; height: 4px; }
.changelog-body::-webkit-scrollbar-button:vertical:decrement,
.changelog-body::-webkit-scrollbar-button:vertical:increment { height: 0; }
.changelog-body::-webkit-scrollbar-track { background: transparent; }
.changelog-body::-webkit-scrollbar-thumb { background: var(--muted); border-radius: 2px; }
.changelog-body::-webkit-scrollbar-thumb:hover { background: var(--border); }
.changelog-body { scrollbar-width: thin; scrollbar-color: var(--muted) transparent; }
.changelog-body ul { padding-left: 20px; line-height: 1.8; font-size: 0.92rem; }
.changelog-body table {
  width: 100%; border-collapse: collapse;
  margin: 8px 0; font-size: 0.85rem;
}
.changelog-body th, .changelog-body td {
  border: 1px solid var(--border); padding: 6px 10px; text-align: left;
}
.changelog-body th { background: var(--hover); font-weight: 600; }
.changelog-body code {
  background: var(--orb-bg); padding: 1px 5px; border-radius: var(--radius-xs);
  font-family: "SF Mono", "Cascadia Code", "Consolas", monospace;
  font-size: 0.88em;
}
.changelog-body pre {
  background: var(--orb-bg); padding: 12px 16px; border-radius: var(--radius-md);
  overflow-x: auto; font-size: 0.82rem; line-height: 1.6;
}
.changelog-body pre code { background: none; padding: 0; }
.changelog-body blockquote {
  border-left: 3px solid var(--accent); margin: 8px 0;
  padding: 4px 14px; color: var(--muted); font-style: italic;
}
.changelog-body hr {
  border: none; border-top: 1px solid var(--border); margin: 12px 0;
}
.changelog-body img { border-radius: var(--radius-md); }
.changelog-body h4, .changelog-body h5, .changelog-body h6 {
  margin: 12px 0 4px; color: var(--text);
}
.changelog-body h2 { font-size: 1.2rem; margin: 16px 0 8px; }
.changelog-body h3 { margin: 16px 0 6px; font-size: 1rem; color: var(--text); }

@keyframes changelogIn {
  from { opacity: 0; transform: translateY(24px) scale(0.94); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}