/* Design rationale: docs/claude_context/messageboard.md */
.messageboard-modal {
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.messageboard-modal:not([hidden]) {
  display: flex;
}

.messageboard-modal-panel {
  position: relative;
  width: 100%;
  max-width: 26rem;
  max-height: 85vh;
  max-height: 85dvh;
  background-color: var(--color-card-bg);
  border-radius: 12px;
  box-shadow: 0 8px 24px var(--color-shadow);
  padding: 0.35rem;
}

.messageboard-modal-scroll {
  max-height: calc(85vh - 0.7rem);
  max-height: calc(85dvh - 0.7rem);
  overflow-y: auto;
  overscroll-behavior-y: contain;
  padding: 2.5rem 1.15rem 1.15rem;
  text-align: center;
  scrollbar-width: thin;
  scrollbar-color: var(--color-text) transparent;
}

.messageboard-modal-scroll::-webkit-scrollbar {
  width: 5px;
}

.messageboard-modal-scroll::-webkit-scrollbar-track {
  background: transparent;
}

.messageboard-modal-scroll::-webkit-scrollbar-thumb {
  background-color: var(--color-text);
  border-radius: 999px;
}

.messageboard-modal-close {
  position: absolute;
  top: 0.6rem;
  right: 0.6rem;
  width: 2.4rem;
  height: 2.4rem;
  border: none;
  border-radius: 999px;
  background-color: color-mix(in srgb, var(--color-text) 12%, transparent);
  color: var(--color-text);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
}

.messageboard-modal-title {
  margin: 0 0 0.25rem;
}

.messageboard-modal-date {
  margin: 0 0 1rem;
  font-size: 0.85rem;
  opacity: 0.7;
}

.messageboard-modal-signature {
  margin: 1rem 0 0;
  text-align: right;
  font-style: italic;
  line-height: 1.15;
  padding-bottom: 4.5rem;
}

.messageboard-modal-fade {
  display: none;
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4.5rem;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 0.6rem;
  border-radius: 0 0 10px 10px;
  background: linear-gradient(to bottom, transparent, var(--color-bg) 55%);
  color: var(--color-text-muted);
  font-weight: bold;
  font-size: 1.25rem;
  letter-spacing: 0.1em;
  pointer-events: none;
}

.messageboard-modal-fade.is-visible {
  display: flex;
}