/* ── Chat Area ── */
.chat-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
}

.chat-messages {
  flex: 1;
  overflow-y: scroll;
  padding: 20px 0;
  padding-bottom: 200px; /* space for overlaid input area + breathing room */
}

.chat-messages-inner {
  max-width: 780px;
  margin: 0 auto;
  padding: 0 20px;
  padding-bottom: 50px;
}

/* Suggestions above input (welcome state) */
.chat-suggestions:empty { display: none; }

.welcome {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 8px 20px 8px;
}

.welcome-suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.suggestion-chip {
  padding: 7px 14px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 13px;
  cursor: pointer;
  transition: all 0.15s;
}
.suggestion-chip:hover {
  background: var(--bg-hover);
  color: var(--text);
  border-color: var(--border-focus);
}

/* Messages */
.message {
  margin-bottom: 24px;
  display: flex;
  gap: 12px;
  animation: messageIn var(--enter-duration) var(--enter-easing);
}
/* Context cards animated by feed-anim.js instead */
.message.context-card { animation: none; }

/* User bubble — right-aligned card */
.message.user { justify-content: flex-end; gap: 0; }
.message.user .message-avatar,
.message.user .message-header { display: none; }
.message.user .message-body {
  flex: none;
  max-width: 80%;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 10px 16px;
}

/* Assistant — no avatar, no header */
.message.assistant { gap: 0; }
.message.assistant .message-avatar,
.message.assistant .message-header { display: none; }

@keyframes messageIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.message-avatar {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
  flex-shrink: 0;
  margin-top: 2px;
}

.message.user .message-avatar {
  background: linear-gradient(135deg, #3a3a5c, #5a5a8c);
  color: var(--text);
}

.message.assistant .message-avatar {
  background: var(--accent);
  color: var(--text-inverse);
}

.message-body {
  flex: 1;
  min-width: 0;
}

.message-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
}

.message-sender {
  font-size: 13px;
  font-weight: 600;
}

.message-model {
  font-size: 10px;
  padding: 1px 6px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  color: var(--text-dim);
}

.message-time {
  font-size: 11px;
  color: var(--text-dim);
}

.message-content {
  font-size: 14px;
  line-height: 1.65;
  color: var(--text);
  word-wrap: break-word;
}

.message-content p { margin-bottom: 8px; }
.message-content p:last-child { margin-bottom: 0; }
.message-content strong { font-weight: 600; }
.message-content em { font-style: italic; color: var(--text-muted); }

.message-content h3,
.message-content h4 {
  font-size: 14px;
  font-weight: 600;
  margin: 12px 0 4px;
  color: var(--accent);
}

.message-content ul, .message-content ol {
  padding-left: 20px;
  margin-bottom: 8px;
}

.message-content li {
  margin-bottom: 2px;
}

/* Streaming / thinking indicator */
.streaming-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 0;
}
.streaming-icon {
  color: var(--text-dim);
  flex-shrink: 0;
  width: 15px;
  height: 15px;
  animation: iconPulse 2s ease-in-out infinite;
}
@keyframes iconPulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}
.streaming-text {
  font-size: 13px;
  color: var(--text-dim);
  font-style: italic;
  letter-spacing: 0.3px;
  min-height: 1em;
}

/* Input area — overlaid at bottom with gradient fade */
.chat-input-area {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 12px 20px 20px;
  max-width: 780px;
  margin: 0 auto;
  width: 100%;
  background: rgba(0, 0, 0, 0.85);
  z-index: 10;
}
.chat-input-area::before {
  content: '';
  position: absolute;
  top: -30px;
  left: 0;
  right: 0;
  height: 30px;
  background: linear-gradient(to bottom, transparent, rgba(0, 0, 0, 0.85));
  pointer-events: none;
}

.chat-input-wrapper {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 8px 12px;
  transition: border-color 0.15s;
}
.chat-input-wrapper:focus-within { border-color: var(--border-focus); }

.chat-input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--text);
  font-size: 14px;
  font-family: var(--font-sans);
  resize: none;
  max-height: 120px;
  min-height: 24px;
  line-height: 1.5;
  padding: 4px 0;
}
.chat-input::placeholder { color: var(--text-dim); }

.btn-send {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: var(--accent);
  border: none;
  color: var(--text-inverse);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
  transition: opacity 0.15s;
}
.btn-send:disabled { opacity: 0.3; cursor: default; }
.btn-send:hover:not(:disabled) { opacity: 0.85; }

/* Model picker */
.chat-model-wrap {
  position: relative;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  height: 32px;
}
.chat-model-btn {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 11px;
  padding: 5px 8px;
  cursor: pointer;
  white-space: nowrap;
  max-width: 110px;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: border-color 0.15s, color 0.15s;
}
.chat-model-btn:hover {
  border-color: var(--border-focus);
  color: var(--text);
}
.chat-model-dropdown {
  display: none;
  position: absolute;
  bottom: calc(100% + 6px);
  right: 0;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: 0 4px 16px rgba(0,0,0,.35);
  min-width: 160px;
  z-index: 100;
  overflow: hidden;
}
.chat-model-dropdown.open { display: block; }
.chat-model-option {
  display: block;
  width: 100%;
  padding: 8px 12px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 13px;
  text-align: left;
  cursor: pointer;
  transition: background 0.1s;
}
.chat-model-option:hover { background: var(--bg-hover); color: var(--text); }
.chat-model-option.active {
  color: var(--accent);
  font-weight: 600;
}

.chat-input-hint {
  text-align: center;
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 6px;
}