/* ==========================================================================
   OgbonMath — AI History Extras (Phase 3)
   --------------------------------------------------------------------------
   Styles for the rename / search / export menu / share flow / shared-
   conversation overlay added in the AI history expansion.
   ========================================================================== */

/* ==========================================================================
   Search bar at top of convo dropdown
   ==========================================================================
*/
.ai-convo-search {
  padding: var(--sp-2) var(--sp-2) var(--sp-1);
  border-bottom: 1px solid var(--bdr);
  margin-bottom: var(--sp-1);
}

.ai-convo-search-input {
  width: 100%;
  padding: 8px 12px !important;
  background: var(--bg) !important;
  border: 1px solid var(--bdr) !important;
  border-radius: var(--radius-sm) !important;
  color: var(--tx) !important;
  font-family: var(--font-sans) !important;
  font-size: var(--fs-sm) !important;
  transition: border-color var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out);
}

.ai-convo-search-input:focus {
  outline: none !important;
  border-color: var(--ac) !important;
  box-shadow: 0 0 0 3px var(--ac-ring) !important;
}

.ai-convo-body {
  padding: 2px 2px 0;
}

/* ==========================================================================
   Actions cluster on each conversation row (rename / export / share / delete)
   ==========================================================================
*/
.ai-convo-row-actions {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding-right: 4px;
  opacity: 0;
  transition: opacity var(--dur-fast) var(--ease-out);
}

.ai-convo-row:hover .ai-convo-row-actions,
.ai-convo-row:focus-within .ai-convo-row-actions {
  opacity: 1;
}

@media (max-width: 768px) {
  .ai-convo-row-actions { opacity: 0.75; }
}

.ai-convo-row-action {
  width: 28px;
  height: 28px;
  background: transparent !important;
  border: none !important;
  color: var(--tx3) !important;
  font-size: 14px !important;
  line-height: 1;
  cursor: pointer;
  border-radius: var(--radius-sm) !important;
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  transition: color var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out);
  padding: 0 !important;
  flex-shrink: 0;
}

.ai-convo-row-action:hover {
  color: var(--ac) !important;
  background: var(--ac-soft) !important;
}

.ai-convo-row-action.ai-convo-row-delete:hover {
  color: var(--rd) !important;
  background: var(--rd-bg) !important;
}

/* ==========================================================================
   Inline rename input
   ==========================================================================
*/
.ai-convo-row-rename-input {
  width: 100%;
  padding: 6px 8px !important;
  background: var(--bg) !important;
  border: 1px solid var(--ac) !important;
  border-radius: var(--radius-sm) !important;
  color: var(--tx) !important;
  font-family: var(--font-sans) !important;
  font-size: var(--fs-sm) !important;
  font-weight: var(--fw-medium) !important;
  margin: 2px 0;
  outline: none !important;
}

.ai-convo-row-rename-input:focus {
  box-shadow: 0 0 0 3px var(--ac-ring) !important;
}

/* ==========================================================================
   Export menu (floating panel)
   ==========================================================================
*/
.ai-export-menu {
  position: fixed;
  z-index: calc(var(--z-dropdown) + 10);
  background: var(--bg2);
  border: 1px solid var(--bdr);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  min-width: 200px;
  padding: 4px;
  animation: ai-export-in var(--dur-fast) var(--ease-calm);
}

@keyframes ai-export-in {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

.ai-export-item {
  display: block;
  width: 100%;
  padding: 8px 12px !important;
  background: transparent !important;
  border: none !important;
  border-radius: var(--radius-sm) !important;
  color: var(--tx) !important;
  font-family: var(--font-sans) !important;
  font-size: var(--fs-sm) !important;
  text-align: left !important;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out);
}

.ai-export-item:hover {
  background: var(--hover-bg) !important;
}

/* ==========================================================================
   Shared conversation overlay (receiver view)
   ==========================================================================
*/
.shared-convo-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  background: var(--backdrop);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-4);
  opacity: 0;
  animation: shared-convo-in var(--dur) var(--ease-calm) forwards;
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
}

.shared-convo-overlay.closing {
  animation: shared-convo-out var(--dur-fast) var(--ease-calm) forwards;
}

@keyframes shared-convo-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes shared-convo-out {
  from { opacity: 1; }
  to { opacity: 0; }
}

.shared-convo-panel {
  width: 100%;
  max-width: 720px;
  max-height: 90vh;
  max-height: 90dvh;
  background: var(--bg2);
  border: 1px solid var(--bdr);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: shared-convo-scale var(--dur) var(--ease-calm);
}

@keyframes shared-convo-scale {
  from { transform: scale(0.96) translateY(8px); }
  to { transform: scale(1) translateY(0); }
}

.shared-convo-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--sp-3);
  padding: var(--sp-5) var(--sp-6);
  border-bottom: 1px solid var(--bdr);
}

.shared-convo-eyebrow {
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--ls-widest);
  text-transform: uppercase;
  color: var(--ac);
  margin-bottom: 4px;
}

.shared-convo-title {
  font-family: var(--font-display);
  font-size: var(--fs-2xl);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--ls-tight);
  color: var(--tx);
  margin: 0;
}

.shared-convo-close {
  background: transparent !important;
  border: 1px solid transparent !important;
  color: var(--tx2) !important;
  font-size: 24px !important;
  line-height: 1;
  cursor: pointer;
  padding: 4px 10px !important;
  border-radius: var(--radius-md) !important;
  transition: color var(--dur-fast), background var(--dur-fast);
}

.shared-convo-close:hover {
  color: var(--tx) !important;
  background: var(--hover-bg) !important;
}

.shared-convo-body {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
  padding: var(--sp-5) var(--sp-6);
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}

.shared-convo-empty {
  color: var(--tx2);
  text-align: center;
  font-family: var(--font-serif);
  padding: var(--sp-8) 0;
}

.shared-convo-msg {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-width: 85%;
}

.shared-convo-msg-user {
  align-self: flex-end;
  align-items: flex-end;
}

.shared-convo-msg-model {
  align-self: flex-start;
}

.shared-convo-msg-role {
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--ls-widest);
  text-transform: uppercase;
  color: var(--tx3);
}

.shared-convo-msg-user .shared-convo-msg-role {
  color: var(--ac);
  text-align: right;
}

.shared-convo-msg-body {
  padding: 10px 14px;
  border-radius: var(--radius-lg);
  font-family: var(--font-serif);
  font-size: var(--fs-base);
  line-height: var(--lh-relaxed);
  color: var(--tx);
  word-wrap: break-word;
}

.shared-convo-msg-user .shared-convo-msg-body {
  background: var(--ac-soft);
  border: 1px solid var(--ac);
  font-family: var(--font-sans);
  line-height: var(--lh-normal);
}

.shared-convo-msg-model .shared-convo-msg-body {
  background: var(--bg);
  border: 1px solid var(--bdr);
}

.shared-convo-footer {
  display: flex;
  gap: var(--sp-2);
  justify-content: flex-end;
  padding: var(--sp-4) var(--sp-6);
  border-top: 1px solid var(--bdr);
  background: var(--bg3);
}

.shared-convo-dismiss {
  background: transparent !important;
  border: 1px solid var(--bdr) !important;
  border-radius: var(--radius-md) !important;
  padding: 10px 18px !important;
  color: var(--tx1) !important;
  font-family: var(--font-sans) !important;
  font-size: var(--fs-sm) !important;
  font-weight: var(--fw-semibold) !important;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out);
}

.shared-convo-dismiss:hover {
  background: var(--hover-bg) !important;
}

.shared-convo-fork {
  background: var(--ac) !important;
  color: var(--ac-tx) !important;
  border: 1px solid var(--ac) !important;
  border-radius: var(--radius-md) !important;
  padding: 10px 18px !important;
  font-family: var(--font-sans) !important;
  font-size: var(--fs-sm) !important;
  font-weight: var(--fw-semibold) !important;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out);
}

.shared-convo-fork:hover {
  background: var(--ac2) !important;
  border-color: var(--ac2) !important;
}

/* Mobile tweaks */
@media (max-width: 560px) {
  .shared-convo-overlay { padding: var(--sp-2); }
  .shared-convo-header { padding: var(--sp-4); }
  .shared-convo-body { padding: var(--sp-4); }
  .shared-convo-footer {
    padding: var(--sp-3) var(--sp-4);
    flex-direction: column-reverse;
  }
  .shared-convo-footer > button { width: 100%; }
  .shared-convo-msg { max-width: 95%; }
  .shared-convo-title { font-size: var(--fs-xl); }
}