/* ═══════════════════════════════════════════════════════════
   Chat Components — Messages, Thinking, Tool Calls
   Chronological terminal-style display.
   ═══════════════════════════════════════════════════════════ */

/* ── Message Bubbles ── */
.message {
  max-width: min(82%, 860px);
  padding: 13px 16px;
  border-radius: 22px;
  font-size: var(--font-size-base);
  line-height: 1.58;
  white-space: pre-wrap;
  word-break: break-word;
  position: relative;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(10px);
}

.message.user {
  background: var(--color-user-bg);
  align-self: flex-end;
  border: 1px solid var(--color-user-border);
  border-bottom-right-radius: 7px;
}

.message.assistant {
  background: var(--color-assistant-bg);
  align-self: flex-start;
  border: 1px solid var(--color-assistant-border);
  border-bottom-left-radius: 7px;
}

.message.system {
  background: color-mix(in srgb, var(--color-surface-raised) 72%, transparent);
  align-self: center;
  border: 1px solid var(--color-border);
  font-size: var(--font-size-md);
  max-width: min(95%, 760px);
  color: var(--color-text-muted);
  border-radius: var(--radius-xl);
  box-shadow: none;
  font-family: var(--font-mono);
}

.message.turn-summary {
  opacity: 0.68;
}

.message.history {
  opacity: 0.74;
}
.message.history:hover {
  opacity: 1;
}

.message .timestamp {
  font-size: var(--font-size-xs);
  color: var(--color-text-dim);
  margin-top: var(--space-xs);
  font-family: var(--font-mono);
}

/* ── Image Messages ── */
.message.image-message {
  padding: var(--space-sm);
  max-width: 320px;
}

.image-caption {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
  word-break: break-all;
}

.chat-image {
  max-width: 100%;
  max-height: 240px;
  border-radius: var(--radius-md);
  display: block;
}

/* ── Chronological Blocks (Terminal View) ── */
/* These appear IN ORDER: tool_call → thinking → tool_call → response */

.chronicle-block {
  max-width: min(92%, 980px);
  align-self: flex-start;
  border-radius: var(--radius-lg);
  font-size: var(--font-size-md);
  animation: blockAppear 200ms ease;
  font-family: var(--font-mono);
}

@keyframes blockAppear {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── Tool Call Block ── */
.tool-call-block {
  background: var(--color-tool-bg);
  border: 1px solid var(--color-tool-border);
  padding: 10px 12px;
  box-shadow: 0 10px 34px rgba(0,0,0,0.20);
}

.tool-call-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-accent);
  font-weight: 600;
}

.tool-call-header .tool-icon {
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid color-mix(in srgb, var(--color-accent) 38%, transparent);
  border-radius: var(--radius-xl);
  padding: 2px 7px;
  color: var(--color-accent);
  background: var(--color-accent-bg);
}

.tool-call-list {
  color: var(--color-text-muted);
  margin-left: 6px;
  font-weight: 400;
}

.tool-call-args {
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
  font-family: var(--font-mono);
  max-height: 120px;
  overflow: hidden;
  white-space: pre-wrap;
}

.tool-call-args.expanded {
  max-height: none;
}

.tool-call-result {
  color: var(--color-tool-result);
  margin-top: var(--space-sm);
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-sm);
  font-size: var(--font-size-sm);
}

.tool-call-toggle {
  background: none;
  border: none;
  color: var(--color-text-dim);
  cursor: pointer;
  font-size: var(--font-size-xs);
  margin-top: var(--space-xs);
  padding: 0;
}

.tool-call-toggle:hover {
  color: var(--color-text-secondary);
}

/* ── Thinking Block ── */
.thinking-block {
  background: var(--color-thinking-bg);
  border: 1px dashed var(--color-thinking-border);
  padding: 10px 12px;
  color: var(--color-text-muted);
  font-style: normal;
  position: relative;
}

.thinking-block::before {
  content: 'thought';
  display: inline-block;
  margin-right: 8px;
  color: var(--color-warning);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.thinking-block.done {
  opacity: 0.72;
}

.thinking-block.compact {
  display: none;
}

.thinking-indicator {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-accent);
}

.thinking-dots {
  display: inline-flex;
  gap: 3px;
}

.thinking-dots span {
  width: 5px;
  height: 5px;
  background: var(--color-accent);
  border-radius: 50%;
  animation: thinkingPulse 1.2s infinite;
}

.thinking-dots span:nth-child(2) { animation-delay: 0.2s; }
.thinking-dots span:nth-child(3) { animation-delay: 0.4s; }

@keyframes thinkingPulse {
  0%, 80%, 100% { opacity: 0.3; transform: scale(0.8); }
  40% { opacity: 1; transform: scale(1); }
}

/* ── Response Block (final assistant message) ── */
.response-block {
  background: var(--color-assistant-bg);
  border: 1px solid var(--color-assistant-border);
  padding: 13px 16px;
  border-radius: 22px 22px 22px 7px;
  font-size: var(--font-size-base);
  line-height: 1.58;
  white-space: pre-wrap;
  word-break: break-word;
  max-width: min(82%, 860px);
  align-self: flex-start;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(10px);
}

.markdown-body {
  white-space: normal;
  word-break: normal;
  overflow-wrap: anywhere;
}

.markdown-body > :first-child {
  margin-top: 0;
}

.markdown-body > :last-child {
  margin-bottom: 0;
}

.markdown-body p {
  margin: 0 0 0.85em;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4,
.markdown-body h5,
.markdown-body h6 {
  color: var(--color-text);
  line-height: 1.22;
  margin: 1em 0 0.45em;
}

.markdown-body h1 { font-size: 1.45em; }
.markdown-body h2 { font-size: 1.28em; }
.markdown-body h3 { font-size: 1.12em; }

.markdown-body strong {
  color: var(--color-text);
  font-weight: 700;
}

.markdown-body em {
  color: var(--color-text-secondary);
}

.markdown-body a {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: 1px solid color-mix(in srgb, var(--color-accent) 45%, transparent);
}

.markdown-body a:hover {
  border-bottom-color: var(--color-accent);
}

.markdown-body ul,
.markdown-body ol {
  margin: 0.45em 0 0.9em;
  padding-left: 1.35em;
}

.markdown-body li {
  margin: 0.22em 0;
}

.markdown-body blockquote {
  margin: 0.8em 0;
  padding: 0.2em 0 0.2em 1em;
  border-left: 3px solid var(--color-accent);
  color: var(--color-text-muted);
  background: color-mix(in srgb, var(--color-surface-raised) 42%, transparent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.markdown-body code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: color-mix(in srgb, var(--color-surface-solid) 70%, transparent);
  border: 1px solid var(--color-border-subtle);
  border-radius: 6px;
  padding: 0.12em 0.36em;
}

.markdown-body pre {
  margin: 0.85em 0;
  padding: 12px;
  overflow-x: auto;
  background: color-mix(in srgb, var(--color-surface-solid) 80%, transparent);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  white-space: pre;
}

.markdown-body pre code {
  display: block;
  padding: 0;
  background: none;
  border: none;
  white-space: pre;
}

.markdown-body hr {
  border: 0;
  border-top: 1px solid var(--color-border);
  margin: 1em 0;
}

.md-table-wrap {
  overflow-x: auto;
  margin: 0.9em 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.markdown-body table {
  width: 100%;
  min-width: 420px;
  border-collapse: collapse;
  font-size: 0.94em;
}

.markdown-body th,
.markdown-body td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--color-border-subtle);
  vertical-align: top;
}

.markdown-body th {
  background: color-mix(in srgb, var(--color-surface-raised) 76%, transparent);
  color: var(--color-text);
  font-weight: 650;
}

.markdown-body tr:last-child td {
  border-bottom: 0;
}

/* ── Iteration Badge ── */
.iteration-badge {
  font-size: var(--font-size-sm);
  color: var(--color-text-dim);
  align-self: center;
  padding: var(--space-xs) var(--space-md);
  font-family: var(--font-mono);
}

/* ── History Divider ── */
.history-divider {
  align-self: center;
  color: var(--color-text-dim);
  font-size: var(--font-size-sm);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-border-subtle);
  width: 80%;
  text-align: center;
  margin: var(--space-xs) 0;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.turn-activity {
  align-self: center;
  color: var(--color-text-muted);
  background: color-mix(in srgb, var(--color-surface-raised) 70%, transparent);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 6px 12px;
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  letter-spacing: 0.04em;
  display: none;
}

.compact-chat .turn-activity {
  display: block;
}

.turn-activity.done {
  opacity: 0.55;
}

/* ── Load More Button ── */
.load-more {
  align-self: center;
  background: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  color: var(--color-accent);
  padding: var(--space-sm) var(--space-xl);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-family: inherit;
  font-size: var(--font-size-md);
  transition: background var(--transition-fast);
}

.load-more:hover {
  background: var(--color-border);
}

.load-more:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

/* ── Scroll Indicator ── */
#scroll-indicator {
  position: fixed;
  bottom: 100px;
  right: 30px;
  background: color-mix(in srgb, var(--color-surface-solid) 78%, transparent);
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-xl);
  padding: var(--space-sm) var(--space-lg);
  font-size: var(--font-size-sm);
  cursor: pointer;
  display: none;
  z-index: 100;
  font-family: inherit;
  backdrop-filter: var(--blur-panel);
  transition: background var(--transition-fast), transform var(--transition-fast);
}

#scroll-indicator:hover {
  background: var(--color-accent-bg);
  transform: translateY(-1px);
}

/* ── Compact Mode Hiding ── */
.tool-call-block.hidden-in-compact,
.thinking-block.hidden-in-compact {
  display: none;
}

/* Thinking block: full text visible by default, indicator hidden */
.thinking-block .thinking-text {
  display: inline;
}
.thinking-block .thinking-indicator {
  display: none;
}

/* Thinking block in compact mode: hide text, show indicator */
.compact-summary {
  background: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-md);
  max-width: 90%;
  align-self: flex-start;
  color: var(--color-text-muted);
}

.compact-summary .tool-count {
  color: var(--color-accent);
  font-weight: bold;
}

/* ── Status Badges ── */
.status-badge {
  font-size: var(--font-size-xs);
  padding: 5px 9px;
  border-radius: var(--radius-xl);
  font-weight: 500;
  font-family: var(--font-mono);
  border: 1px solid transparent;
}

.status-badge.connected {
  background: var(--color-success-bg);
  color: var(--color-success);
  border-color: color-mix(in srgb, var(--color-success) 28%, transparent);
}

.status-badge.disconnected {
  background: var(--color-error-bg);
  color: var(--color-error);
  border-color: color-mix(in srgb, var(--color-error) 28%, transparent);
}

.status-badge.thinking {
  background: var(--color-warning-bg);
  color: var(--color-warning);
  border-color: color-mix(in srgb, var(--color-warning) 28%, transparent);
}

/* ── Context Bar ── */
.context-bar {
  position: relative;
  width: 140px;
  height: 18px;
  background: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  font-size: var(--font-size-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: help;
}

.context-bar-fill {
  position: absolute;
  top: 0; left: 0; bottom: 0;
  background: linear-gradient(to right, var(--color-success), var(--color-accent));
  transition: width 400ms ease, background 400ms ease;
  z-index: 0;
}

.context-bar-fill.warn {
  background: linear-gradient(to right, var(--color-warning), var(--color-accent));
}

.context-bar-fill.crit {
  background: linear-gradient(to right, var(--color-error), var(--color-warning));
}

.context-bar-label {
  position: relative;
  z-index: 1;
  color: var(--color-text);
  font-family: var(--font-mono);
  white-space: nowrap;
  text-shadow: 0 1px 2px rgba(0,0,0,0.6);
}

@media (max-width: 768px) {
  .message,
  .response-block,
  .chronicle-block {
    max-width: 100%;
  }

  .message,
  .response-block {
    padding: 12px 13px;
  }
}

.checkpoint-indicator {
  font-size: var(--font-size-sm);
  color: var(--color-accent);
  opacity: 0.7;
  user-select: none;
}