/* ── ORACLE Chat Panel ── */

.chat-fab {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--accent);
  color: var(--accent);
  font-size: 1.2rem;
  cursor: pointer;
  z-index: 100;
  transition: all 0.2s;
  box-shadow: 0 0 16px rgba(0, 255, 136, 0.15);
  font-family: var(--mono);
}
.chat-fab:hover {
  background: var(--accent);
  color: var(--bg);
  box-shadow: 0 0 24px rgba(0, 255, 136, 0.3);
}
.chat-fab.active {
  display: none;
}

/* Panel */
.chat-panel {
  position: fixed;
  top: 0;
  right: 0;
  width: 380px;
  height: 100vh;
  background: var(--bg);
  border-left: 1px solid var(--border);
  z-index: 200;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.25s ease;
}
.chat-panel.open {
  transform: translateX(0);
}

/* Header */
.chat-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--accent);
  background: var(--surface);
  flex-shrink: 0;
}
.chat-header-actions {
  margin-left: auto;
  display: flex;
  gap: 6px;
}

/* Messages */
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.chat-msg {
  margin-bottom: 12px;
  max-width: 90%;
}
.chat-msg.user {
  margin-left: auto;
  text-align: right;
}
.chat-msg.assistant {
  margin-right: auto;
}

.chat-msg-role {
  font-size: 0.55rem;
  letter-spacing: 0.1em;
  color: #555;
  margin-bottom: 3px;
  text-transform: uppercase;
}

.chat-msg-content {
  font-size: 0.75rem;
  line-height: 1.5;
  padding: 8px 12px;
  border: 1px solid var(--border);
  word-wrap: break-word;
  white-space: pre-wrap;
}
.chat-msg.user .chat-msg-content {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--text-bright);
}
.chat-msg.assistant .chat-msg-content {
  background: var(--surface);
  color: var(--text);
}

/* Tool invocation cards */
.chat-tool-card {
  margin: 6px 0;
  padding: 6px 10px;
  border: 1px solid var(--border);
  background: var(--surface2);
  font-size: 0.65rem;
  border-radius: 0;
}
.chat-tool-header {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text);
  letter-spacing: 0.08em;
}
.chat-tool-status {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.chat-tool-status.running {
  background: #ff9900;
  animation: pulse 1s infinite;
}
.chat-tool-status.completed {
  background: var(--accent);
}
.chat-tool-status.error {
  background: var(--danger);
}
.chat-tool-name {
  color: var(--text-bright);
  font-weight: bold;
}
.chat-tool-result {
  margin-top: 4px;
  padding: 4px 0;
  color: #666;
  font-size: 0.6rem;
  max-height: 60px;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Streaming indicator */
.chat-streaming {
  display: inline-block;
  width: 6px;
  height: 14px;
  background: var(--accent);
  animation: blink 0.8s step-end infinite;
  vertical-align: middle;
  margin-left: 2px;
}
@keyframes blink {
  50% { opacity: 0; }
}

/* Input area */
.chat-input-area {
  display: flex;
  gap: 6px;
  padding: 10px 12px;
  border-top: 1px solid var(--border);
  background: var(--surface);
  flex-shrink: 0;
}
.chat-input-area textarea {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-bright);
  padding: 8px 10px;
  font-family: var(--mono);
  font-size: 0.75rem;
  resize: none;
  max-height: 80px;
  outline: none;
}
.chat-input-area textarea:focus {
  border-color: var(--accent);
}
.chat-send-btn {
  width: 40px;
  flex-shrink: 0;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
}
.chat-send-btn:disabled {
  opacity: 0.3;
  pointer-events: none;
}

/* Markdown in assistant messages */
.chat-msg.assistant .chat-msg-content h1,
.chat-msg.assistant .chat-msg-content h2,
.chat-msg.assistant .chat-msg-content h3 {
  color: var(--accent);
  margin: 8px 0 4px;
  font-size: 0.8rem;
}
.chat-msg.assistant .chat-msg-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 6px 0;
  font-size: 0.65rem;
}
.chat-msg.assistant .chat-msg-content th,
.chat-msg.assistant .chat-msg-content td {
  border: 1px solid var(--border);
  padding: 3px 6px;
  text-align: left;
}
.chat-msg.assistant .chat-msg-content th {
  background: var(--surface2);
  color: var(--accent);
}
.chat-msg.assistant .chat-msg-content code {
  background: var(--surface2);
  padding: 1px 4px;
  font-size: 0.65rem;
}
.chat-msg.assistant .chat-msg-content strong {
  color: var(--text-bright);
}