/* =============================================
   CHAT PANEL INNER LAYOUT
   ============================================= */

/* =============================================
   MOOD-ADAPTIVE THEMES
   ============================================= */

.tab-panel--chat {
  --chat-bg: var(--surface-container-low);
  --chat-bubble-user: var(--secondary-container);
  --chat-bubble-user-text: var(--on-secondary-container);
  --chat-bubble-partner: var(--partner-surface-bg);
  --chat-bubble-partner-text: var(--partner-surface-text);
  --chat-focus-color: var(--primary);
}

/* Mood: Sad (1) */
.tab-panel--chat[data-partner-mood="1"] {
  --chat-bg: var(--mood-sad-bg);
  --chat-focus-color: var(--mood-sad-focus);
}

/* Mood: Meh (3) */
.tab-panel--chat[data-partner-mood="3"] {
  --chat-bg: var(--mood-meh-bg);
  --chat-focus-color: var(--mood-meh-focus);
}

/* Mood: Happy (5) */
.tab-panel--chat[data-partner-mood="5"] {
  --chat-bg: var(--mood-happy-bg);
  --chat-focus-color: var(--primary);
}

.chat-panel-inner {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  background: var(--chat-bg);
  transition: background 0.5s ease;
  overflow: hidden;
}

@media (min-width: 768px) {
  .chat-panel-inner {
    border-radius: var(--radius-lg);
    margin: 1.5rem 2rem;
    flex: 1;
    background: var(--cream-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--primary-glass-border);
    box-shadow: var(--shadow-lg);
  }
}

.message.sent .message-content {
  background: var(--chat-bubble-user);
  color: var(--chat-bubble-user-text);
  border-radius: 1.5rem 1.5rem 0.25rem 1.5rem;
}

.message.optimistic-pending {
  opacity: 0.6;
}

.pending-spinner {
  width: 10px;
  height: 10px;
  border: 2px solid var(--chat-bubble-user-text);
  border-top-color: transparent;
  border-radius: 50%;
  display: inline-block;
  margin-left: 0.5rem;
  animation: spin 1s linear infinite;
}

.message.received .message-content {
  background: var(--chat-bubble-partner);
  color: var(--chat-bubble-partner-text);
  border-radius: 1.5rem 1.5rem 1.5rem 0.25rem;
}

/* =============================================
   CHAT HEADER & FOCUS INDICATOR
   ============================================= */

.chat-header-intimacy {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 0.5rem;
  background: var(--surface-container-lowest);
  border-bottom: 1px solid var(--primary-glass-border);
}

.chat-focus-indicator {
  display: none;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  color: var(--chat-focus-color);
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  animation: fadeIn 0.3s ease;
}

.app-presence-glow--chat ~ .tab-content #chat_focus_status,
.app-presence-glow--chat ~ #tab-content #chat_focus_status {
  display: flex;
}

.focus-dot {
  width: 8px;
  height: 8px;
  background: currentColor;
  border-radius: 50%;
  box-shadow: 0 0 10px currentColor;
  animation: focusPulse 2s infinite;
}

@keyframes focusPulse {
  0% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.5); opacity: 0.5; }
  100% { transform: scale(1); opacity: 1; }
}

.chat-search {
  flex: 1;
  padding: 1rem 1.5rem;
  background: transparent;
  border-bottom: none;
  position: relative;
}

/* =============================================
   AI INTIMACY PROMPTS
   ============================================= */

.ai-intimacy-prompt {
  align-self: center !important;
  max-width: 90% !important;
  margin: 1.5rem 0;
}

.ai-intimacy-prompt .message-content {
  background: var(--surface-container-highest);
  border: 1.5px solid var(--primary-glass-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  text-align: center;
}

.ai-prompt-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 0.5rem;
  letter-spacing: 0.1em;
}

.ai-sparkle {
  animation: sparkle 2s infinite;
}

@keyframes sparkle {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.2); }
}

/* =============================================
   MESSAGES
   ============================================= */

#messages-container {
  display: flex;
  flex: 1;
  flex-direction: column;
  min-height: 0;
  overflow-y: auto;
}

#pagination-next {
  flex-shrink: 0;
  text-align: center;
  padding: 1rem 0;
}

.messages-list {
  flex: 1;
  min-height: 0;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  scroll-behavior: smooth;
}

.message {
  display: flex;
  flex-direction: column;
  max-width: 80%;
  animation: fadeIn 0.4s ease;
}

.message.sent { align-self: flex-end; align-items: flex-end; }
.message.received { align-self: flex-start; align-items: flex-start; }

.message-content {
  padding: 0.85rem 1.25rem;
  font-size: 0.95rem;
  line-height: 1.5;
  position: relative;
  word-wrap: break-word;
  box-shadow: var(--shadow-sm);
}

.message .timestamp {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
  font-family: var(--font-family);
  opacity: 0.8;
}

.message.sent .timestamp { text-align: right; }

/* =============================================
   REACTIONS
   ============================================= */

.reactions { 
  display: flex; 
  flex-wrap: wrap; 
  gap: 0.25rem; 
  margin-top: 0.5rem; 
}

.reaction { 
  background: var(--surface-container-highest); 
  border-radius: 1rem; 
  padding: 0.15rem 0.5rem; 
  font-size: 0.8rem; 
  display: flex; 
  align-items: center; 
  gap: 0.25rem; 
  border: 1px solid var(--outline-variant); 
  color: var(--text);
  font-weight: 500;
  transition: var(--transition);
}

.reaction:hover {
  background: var(--surface-container-lowest);
  border-color: var(--primary);
  transform: translateY(-1px);
}

.message-actions {
  position: absolute;
  right: -42px;
  top: 50%;
  transform: translateY(-50%);
  opacity: 0;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.message.sent .message-actions { right: auto; left: -42px; }
.message:hover .message-actions { opacity: 1; }

.message-actions form {
  line-height: 0;
  margin: 0;
}

.btn-reaction, .btn-pin {
  align-items: center;
  background: var(--surface-container-lowest);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-sm);
  color: var(--text-muted);
  cursor: pointer;
  display: inline-flex;
  height: 2rem;
  justify-content: center;
  padding: 0;
  transition: var(--transition);
  width: 2rem;
}

.btn-reaction .lucide,
.btn-pin .lucide {
  display: block;
  flex-shrink: 0;
  stroke-width: 2.25;
}

.btn-reaction:hover,
.btn-reaction:focus-visible {
  background: var(--danger-container);
  border-color: var(--danger-outline);
  color: var(--danger);
  transform: translateY(-1px);
}

.btn-pin:hover,
.btn-pin:focus-visible,
.btn-pin--active {
  background: var(--primary-wash);
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-1px);
}

.pin-indicator {
  align-items: center;
  background: var(--surface-container-lowest);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-sm);
  color: var(--primary);
  display: inline-flex;
  height: 1.5rem;
  justify-content: center;
  position: absolute;
  right: 0.75rem;
  top: -0.75rem;
  width: 1.5rem;
}

.pin-indicator .lucide {
  display: block;
  stroke-width: 2.25;
}

/* =============================================
   MESSAGE MEDIA
   ============================================= */

.message-images img { max-width: 240px; border-radius: var(--radius-lg); display: block; margin-bottom: 0.5rem; box-shadow: var(--shadow-sm); }
.message-audio audio { max-width: 100%; border-radius: 2rem; outline: none; }

/* =============================================
   TYPING INDICATOR
   ============================================= */

.typing-dots { display: flex; gap: 6px; padding: 1rem 1.5rem; align-items: center; justify-content: center; background: var(--surface-container); border-radius: 1.5rem; width: fit-content; }
.typing-dots span { width: 6px; height: 6px; background-color: var(--primary); border-radius: 50%; display: inline-block; animation: typingBounce 1.4s infinite ease-in-out both; }
.typing-dots span:nth-child(1) { animation-delay: -0.32s; }
.typing-dots span:nth-child(2) { animation-delay: -0.16s; }
@keyframes typingBounce { 0%, 80%, 100% { transform: scale(0); } 40% { transform: scale(1); } }
.typing-indicator-msg { animation: fadeIn 0.2s ease; margin-bottom: 1rem; }

/* =============================================
   CHAT INPUT AREA
   ============================================= */

.chat-input-area {
  flex-shrink: 0;
  padding: 1.25rem 1.5rem;
  background: var(--cream-glass-strong);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-top: 1px solid var(--primary-glass-border);
}

@media (max-width: 768px) {
  .chat-input-area {
    padding-bottom: calc(1.5rem + env(safe-area-inset-bottom));
    background: var(--surface-container-low);
  }
}

.input-group { display: flex; gap: 0.75rem; align-items: center; position: relative; }
.input-group .form-input { 
  border-radius: 1.5rem; 
  padding: 0.85rem 1.5rem; 
  background: var(--surface-container-low); 
  border: 1px solid var(--outline-variant);
  box-shadow: none;
}
.input-group .form-input:focus { 
  background: var(--surface-container-lowest);
  border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--primary-glass-border);
}
.btn-icon { border-radius: 50%; width: 48px; height: 48px; padding: 0; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }

.composer-menu {
  position: relative;
  flex-shrink: 0;
}

.composer-menu-toggle {
  font-size: 1.65rem;
  line-height: 1;
  font-weight: 400;
}

.composer-menu-panel {
  position: absolute;
  left: 0;
  bottom: calc(100% + 0.5rem);
  width: 210px;
  padding: 0.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--outline-variant);
  background: var(--surface-container-lowest);
  box-shadow: var(--shadow-lg);
  z-index: 20;
}

.composer-menu-panel[hidden] {
  display: none;
}

.composer-menu-item {
  width: 100%;
  min-height: 44px;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0.75rem;
  border: 0;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--text);
  cursor: pointer;
  font: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  text-align: left;
}

.composer-menu-item:hover {
  background: var(--surface-container-low);
  color: var(--primary);
}

.composer-menu-item svg,
.composer-menu-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: currentColor;
}

.composer-menu-icon--text {
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0;
}

.composer-file-input {
  display: none;
}

.gif-picker-panel {
  display: none;
  margin-bottom: 0.5rem;
}

.gif-picker-panel.is-open {
  display: block;
}

.gif-picker-panel .form-input-sm {
  margin-bottom: 0.5rem;
}

.gif-thumb {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: 6px;
  cursor: pointer;
}

.gif-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  max-height: 160px;
  overflow-y: auto;
}

.gif-preview {
  margin-top: 0.25rem;
}

.gif-preview-image {
  max-width: 120px;
  border-radius: 8px;
}

.drawing-pad-panel {
  display: none;
  margin-bottom: 0.5rem;
}

.drawing-pad-panel.is-open {
  display: block;
}

.drawing-pad-canvas {
  width: 100%;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-sm);
  touch-action: none;
  background: var(--surface-container-lowest);
}

.drawing-pad-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.25rem;
}

@media (max-width: 520px) {
  .input-group {
    gap: 0.5rem;
  }

  .chat-input-area {
    padding-left: 0.75rem;
    padding-right: 0.75rem;
  }

  .composer-menu-panel {
    width: 190px;
  }
}

/* =============================================
   AUDIO RECORDER
   ============================================= */

.mic-btn { background: transparent; border: 1.5px solid var(--outline); color: var(--text-muted); cursor: pointer; transition: var(--transition); }
.mic-btn:hover { background: var(--primary-glass-border); color: var(--primary); border-color: var(--primary); }
.mic-btn.recording { background: var(--danger); color: var(--on-primary); border-color: transparent; animation: pulseRed 1.5s infinite; }
@keyframes pulseRed { 0% { box-shadow: 0 0 0 0 rgba(186, 26, 26, 0.4); } 70% { box-shadow: 0 0 0 10px rgba(186, 26, 26, 0); } 100% { box-shadow: 0 0 0 0 rgba(186, 26, 26, 0); } }

.btn-icon {
  background: transparent;
  border: 1.5px solid transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
}

.btn-icon:hover {
  color: var(--primary);
  background: var(--primary-glass-border);
}

.submit-btn {
  background: var(--primary) !important;
  color: var(--on-primary) !important;
  border: none !important;
}

.submit-btn:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-md);
}

/* =============================================
   MESSAGE SEARCH RESULTS
   ============================================= */

.chat-search {
  padding: 1rem 1.5rem;
  background: var(--surface-container-lowest);
  border-bottom: 1px solid var(--primary-glass-border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.search-results {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--surface-container-lowest);
  box-shadow: var(--shadow-lg);
  max-height: 400px;
  overflow-y: auto;
  z-index: 100;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  border: 1px solid var(--primary-glass-border);
}

.search-header {
  padding: 0.75rem 1.25rem;
  background: var(--surface-container-low);
  border-bottom: 1px solid var(--outline-variant);
}

.search-header p {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.search-no-results {
  padding: 1.5rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.search-list {
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.search-list .message .message-actions {
  display: none !important;
}

/* =============================================
   CHAT EMPTY STATE
   ============================================= */

.chat-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 2rem;
  margin: 2rem;
  border: 1.5px dashed var(--outline-variant);
  border-radius: var(--radius-lg);
  background: var(--surface-container-low);
  color: var(--text-muted);
  text-align: center;
  gap: 0.75rem;
  animation: fadeIn 0.4s ease;
}

.chat-empty-state .chat-empty-icon {
  width: 48px;
  height: 48px;
  color: var(--primary);
  opacity: 0.8;
  margin-bottom: 0.25rem;
}

.chat-empty-state p {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1.4;
}

/* =============================================
   VIDEO & GIF MEDIA STYLES
   ============================================= */

.message-video video,
.message-gif img {
  max-width: 100%;
  border-radius: 8px;
  display: block;
}

/* =============================================
   SEND ERROR ANIMATION
   ============================================= */

.chat-input-area.send-error .input-group {
  animation: shake 0.4s ease;
}

.chat-input-area.send-error .submit-btn {
  color: var(--error);
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-6px); }
  40% { transform: translateX(6px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(4px); }
}

/* =============================================
   MESSAGE SEARCH STATUS STATES
   ============================================= */

.search-status {
  padding: 0.5rem 0.75rem;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
  margin-top: 0.25rem;
}

.search-loading {
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.search-spinner {
  display: inline-block;
  width: 12px;
  height: 12px;
  border: 2px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

.search-empty {
  color: var(--text-muted);
  font-style: italic;
}

.search-error {
  color: var(--error);
}