/* ===== CSS Custom Properties (Anthropic Brand Dark Theme) ===== */
:root {
  --bg-primary: #141413;
  --bg-secondary: #1b1b19;
  --bg-tertiary: #222220;
  --bg-input: #282826;
  --bg-hover: #333330;
  --bg-active: #6a9bcc1a;

  --border-primary: #2e2e2b;
  --border-secondary: #252523;

  --text-primary: #faf9f5;
  --text-secondary: #b0aea5;
  --text-muted: #8a8882;

  --accent-blue: #6a9bcc;
  --accent-green: #788c5d;
  --accent-orange: #d97757;
  --accent-red: #f85149;
  --accent-purple: #bc8cff;

  --tool-call-border: #6a9bcc;
  --tool-result-border: #788c5d;
  --subagent-border: #bc8cff;

  --sidebar-width: 280px;
  --header-height: 52px;
  --input-bar-height: auto;

  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --shadow: 0 1px 3px rgba(0, 0, 0, 0.3);

  --font-mono: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  --font-sans: 'Lora', Georgia, serif;
  --font-heading: 'Poppins', Arial, sans-serif;
}

/* ===== Reset ===== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
  overflow: hidden;
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--text-primary);
  background: var(--bg-primary);
}

/* ===== App Layout ===== */
#app {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* ===== Sidebar ===== */
#sidebar {
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-primary);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.sidebar-header {
  padding: 16px;
  border-bottom: 1px solid var(--border-primary);
  flex-shrink: 0;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.logo {
  font-size: 16px;
  font-weight: 600;
  margin: 0;
  color: var(--text-primary);
  font-family: var(--font-heading);
}

.beta-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 3px 8px;
  border-radius: 999px;
  border: 1px solid rgba(115, 142, 232, 0.28);
  background: rgba(115, 142, 232, 0.12);
  color: #aebeff;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  line-height: 1;
}

.beta-badge-inline {
  flex-shrink: 0;
}

#new-chat-btn {
  width: 100%;
  padding: 8px 12px;
  background: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  transition: background 0.15s, border-color 0.15s;
}

#new-chat-btn:hover {
  background: var(--bg-hover);
  border-color: var(--text-muted);
}

/* Conversation List */
.conversation-list {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
}

.conversation-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background 0.15s;
  margin-bottom: 2px;
}

.conversation-item:hover {
  background: var(--bg-hover);
}

.conversation-item.active {
  background: var(--bg-active);
}

.conversation-item .conv-info {
  flex: 1;
  min-width: 0;
}

.conversation-item .conv-title {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.conversation-item .conv-meta {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
}

.conversation-item .delete-btn {
  opacity: 0;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  font-size: 16px;
  line-height: 1;
  border-radius: var(--radius-sm);
  transition: opacity 0.15s, color 0.15s;
  flex-shrink: 0;
  margin-left: 4px;
}

.conversation-item:hover .delete-btn {
  opacity: 1;
}

.conversation-item .delete-btn:hover {
  color: var(--accent-red);
}

/* ===== Chat Area ===== */
#chat-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
}

/* Chat Header */
#chat-header {
  height: var(--header-height);
  min-height: var(--header-height);
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-primary);
  background: var(--bg-secondary);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

#chat-title {
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-family: var(--font-heading);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.status-indicator {
  font-size: 10px;
  transition: color 0.3s;
}

.status-indicator.connected {
  color: var(--accent-green);
}

.status-indicator.disconnected {
  color: var(--text-muted);
}

.status-indicator.connecting {
  color: var(--accent-orange);
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.token-usage {
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* ===== Messages Area ===== */
.messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  scroll-behavior: smooth;
}

.welcome {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  text-align: center;
  color: var(--text-secondary);
}

.welcome h2 {
  font-size: 24px;
  margin-bottom: 8px;
  color: var(--text-primary);
  font-family: var(--font-heading);
}

.welcome p {
  font-size: 14px;
}

/* Message Blocks */
.message-group {
  margin-bottom: 24px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.message-group.user {
  /* user messages */
}

.message-group.assistant {
  /* assistant messages */
}

.message-role {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
  color: var(--text-secondary);
}

.message-role.user {
  color: var(--accent-blue);
}

.message-role.assistant {
  color: var(--accent-green);
}

.message-content {
  line-height: 1.6;
  word-wrap: break-word;
}

.message-content.user-text {
  background: var(--bg-tertiary);
  padding: 12px 16px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-primary);
}

/* Markdown content */
.message-content p {
  margin-bottom: 8px;
}

.message-content p:last-child {
  margin-bottom: 0;
}

.message-content ul, .message-content ol {
  margin: 8px 0;
  padding-left: 24px;
}

.message-content li {
  margin-bottom: 4px;
}

.message-content h1, .message-content h2, .message-content h3,
.message-content h4, .message-content h5, .message-content h6 {
  margin: 16px 0 8px;
  font-weight: 600;
  font-family: var(--font-heading);
}

.message-content h1 { font-size: 1.5em; }
.message-content h2 { font-size: 1.3em; }
.message-content h3 { font-size: 1.15em; }

.message-content code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--bg-input);
  padding: 2px 6px;
  border-radius: 4px;
}

.message-content pre {
  margin: 12px 0;
  border-radius: var(--radius-md);
  overflow-x: auto;
}

.message-content pre code {
  display: block;
  padding: 14px 16px;
  background: var(--bg-primary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  font-size: 13px;
  line-height: 1.5;
}

.message-content blockquote {
  border-left: 3px solid var(--border-primary);
  padding-left: 12px;
  color: var(--text-secondary);
  margin: 8px 0;
}

.message-content table {
  border-collapse: collapse;
  margin: 8px 0;
  width: 100%;
}

.message-content th, .message-content td {
  border: 1px solid var(--border-primary);
  padding: 6px 12px;
  text-align: left;
}

.message-content th {
  background: var(--bg-tertiary);
  font-weight: 600;
}

.message-content a {
  color: var(--accent-blue);
  text-decoration: none;
}

.message-content a:hover {
  text-decoration: underline;
}

/* ===== Tool Blocks ===== */
.tool-block {
  margin: 10px 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-primary);
  background: var(--bg-secondary);
  overflow: hidden;
}

.tool-block.tool-call {
  border-left: 3px solid var(--tool-call-border);
}

.tool-block.tool-result {
  border-left: 3px solid var(--tool-result-border);
}

.tool-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  cursor: pointer;
  user-select: none;
  transition: background 0.15s;
}

.tool-header:hover {
  background: var(--bg-hover);
}

.tool-name {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--text-primary);
}

.tool-call .tool-name {
  color: var(--accent-blue);
}

.tool-result .tool-name {
  color: var(--accent-green);
}

.tool-toggle {
  font-size: 10px;
  color: var(--text-muted);
  transition: transform 0.2s;
}

.tool-toggle.open {
  transform: rotate(90deg);
}

.tool-body {
  display: none;
  padding: 0 12px 10px;
  max-height: 400px;
  overflow: auto;
}

.tool-body.open {
  display: block;
}

.tool-body pre {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-all;
  color: var(--text-secondary);
}

/* Tool spinner */
.tool-spinner {
  display: inline-block;
  width: 12px;
  height: 12px;
  border: 2px solid var(--text-muted);
  border-top-color: var(--accent-blue);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-left: 8px;
  vertical-align: middle;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ===== Subagent Blocks ===== */
.subagent-block {
  margin: 10px 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-primary);
  border-left: 3px solid var(--subagent-border);
  background: var(--bg-secondary);
  padding: 10px 14px;
}

.subagent-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-purple);
}

.subagent-task {
  font-size: 13px;
  color: var(--text-primary);
  margin-top: 6px;
}

.subagent-summary {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 6px;
  font-family: var(--font-mono);
}

.subagent-stats {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 4px;
}

.subagent-type {
  font-size: 11px;
  font-weight: 600;
  padding: 1px 6px;
  border-radius: 3px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.subagent-type--general  { background: rgba(176, 174, 165, 0.15); color: #b0aea5; }
.subagent-type--explore  { background: rgba(106, 155, 204, 0.15); color: #6a9bcc; }
.subagent-type--code     { background: rgba(120, 140, 93, 0.15); color: #788c5d; }
.subagent-type--plan     { background: rgba(188, 140, 255, 0.15); color: #bc8cff; }
.subagent-type--research { background: rgba(217, 119, 87, 0.15); color: #d97757; }

/* ===== Tool Approval Blocks ===== */
.tool-block.tool-approval {
  border-left: 3px solid var(--accent-orange);
  background: var(--bg-secondary);
}

.approval-header {
  padding: 8px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-orange);
}

.approval-tool-list {
  padding: 0 12px 8px;
}

.approval-tool-item {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 3px 0;
  font-size: 12px;
}

.approval-tool-name {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--text-primary);
  flex-shrink: 0;
}

.approval-tool-input {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}

.approval-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-top: 1px solid var(--border-primary);
}

.approval-btn {
  padding: 5px 14px;
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 600;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: opacity 0.15s;
}

.approval-btn:hover {
  opacity: 0.85;
}

.approve-btn {
  background: var(--accent-green);
  color: var(--bg-primary);
  border-color: var(--accent-green);
}

.deny-btn {
  background: var(--accent-red);
  color: var(--bg-primary);
  border-color: var(--accent-red);
}

.auto-approve-btn {
  background: transparent;
  color: var(--accent-orange);
  border-color: var(--accent-orange);
  margin-left: auto;
}

.approval-resolved {
  font-size: 12px;
  font-weight: 600;
  font-family: var(--font-mono);
}

.approval-resolved.approved {
  color: var(--accent-green);
}

.approval-resolved.denied {
  color: var(--accent-red);
}

/* ===== Compact Notice ===== */
.compact-notice {
  margin: 10px 0;
  padding: 8px 14px;
  border-radius: var(--radius-md);
  background: var(--bg-tertiary);
  border: 1px dashed var(--border-primary);
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
  font-style: italic;
}

/* ===== Input Bar ===== */
.input-bar {
  padding: 12px 20px 16px;
  border-top: 1px solid var(--border-primary);
  background: var(--bg-secondary);
  display: flex;
  align-items: flex-end;
  gap: 8px;
  max-width: 940px;
  margin: 0 auto;
  width: 100%;
}

#message-input {
  flex: 1;
  resize: none;
  background: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
  max-height: 200px;
  overflow-y: auto;
  transition: border-color 0.15s;
}

#message-input:focus {
  outline: none;
  border-color: var(--accent-blue);
}

#message-input:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

#message-input::placeholder {
  color: var(--text-muted);
}

#send-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-blue);
  color: var(--bg-primary);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  flex-shrink: 0;
  transition: opacity 0.15s;
}

#send-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

#send-btn:not(:disabled):hover {
  opacity: 0.85;
}

#send-btn.hidden {
  display: none;
}

/* Cancel / Stop button */
.cancel-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-red);
  color: var(--bg-primary);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  flex-shrink: 0;
  transition: opacity 0.15s;
}

.cancel-btn:hover {
  opacity: 0.85;
}

.cancel-btn.hidden {
  display: none;
}

/* Interrupt notice divider */
.interrupt-notice {
  margin: 16px 0;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--accent-orange);
  font-size: 12px;
  font-weight: 600;
}

.interrupt-notice::before,
.interrupt-notice::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--accent-orange);
  opacity: 0.3;
}

/* ===== Todo Panel ===== */
.todo-panel {
  position: fixed;
  top: 0;
  right: 0;
  width: 320px;
  height: 100vh;
  background: var(--bg-secondary);
  border-left: 1px solid var(--border-primary);
  z-index: 100;
  display: flex;
  flex-direction: column;
  transform: translateX(0);
  transition: transform 0.25s ease;
  box-shadow: -4px 0 20px rgba(0, 0, 0, 0.3);
}

.todo-panel.hidden {
  transform: translateX(100%);
}

.todo-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-primary);
}

.todo-header h3 {
  font-size: 14px;
  font-weight: 600;
  font-family: var(--font-heading);
}

#todo-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 20px;
  cursor: pointer;
  padding: 0;
  line-height: 1;
}

#todo-close:hover {
  color: var(--text-primary);
}

.todo-list {
  flex: 1;
  overflow-y: auto;
  padding: 12px 16px;
}

.todo-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border-secondary);
}

.todo-item:last-child {
  border-bottom: none;
}

.todo-status {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid var(--text-muted);
  margin-top: 1px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
}

.todo-status.pending {
  border-color: var(--text-muted);
}

.todo-status.in_progress {
  border-color: var(--accent-orange);
  animation: pulse 1.5s infinite;
}

.todo-status.in_progress::after {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-orange);
}

.todo-status.completed {
  border-color: var(--accent-green);
  background: var(--accent-green);
  color: var(--bg-primary);
}

.todo-status.completed::after {
  content: '\2713';
}

.todo-content {
  font-size: 13px;
  color: var(--text-primary);
  line-height: 1.4;
}

.todo-item.completed .todo-content {
  color: var(--text-muted);
  text-decoration: line-through;
}

.todo-active-form {
  font-size: 11px;
  color: var(--accent-orange);
  margin-top: 2px;
}

/* ===== Scrollbar Styling ===== */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--bg-hover);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* ===== File Download Cards ===== */
.file-card {
  margin: 12px 0;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  background: var(--bg-secondary);
  overflow: hidden;
}

.file-card-header {
  padding: 8px 14px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border-primary);
}

.file-card-list {
  display: flex;
  flex-direction: column;
}

.file-card-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  text-decoration: none;
  color: var(--text-primary);
  transition: background 0.15s;
  border-bottom: 1px solid var(--border-secondary);
}

.file-card-item:last-child {
  border-bottom: none;
}

.file-card-item:hover {
  background: var(--bg-hover);
}

.file-icon {
  font-size: 18px;
  flex-shrink: 0;
}

.file-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.file-name {
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-size {
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.file-download-icon {
  font-size: 16px;
  color: var(--accent-blue);
  flex-shrink: 0;
  font-weight: 700;
}

/* ===== Streaming Cursor ===== */
.streaming-cursor::after {
  content: '\25AE';
  color: var(--accent-blue);
  animation: blink 1s step-end infinite;
  margin-left: 2px;
}

@keyframes blink {
  50% { opacity: 0; }
}

/* ===== Loading States ===== */
.loading-dots::after {
  content: '';
  animation: dots 1.5s steps(4) infinite;
}

@keyframes dots {
  0%   { content: ''; }
  25%  { content: '.'; }
  50%  { content: '..'; }
  75%  { content: '...'; }
}

/* ===== Mobile Toggle ===== */
.mobile-only {
  display: none;
}

#sidebar-toggle {
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 20px;
  cursor: pointer;
  padding: 4px;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  #sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 50;
    transform: translateX(-100%);
    transition: transform 0.25s ease;
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.3);
  }

  #sidebar.open {
    transform: translateX(0);
  }

  .mobile-only {
    display: block;
  }

  .input-bar {
    padding: 8px 12px 12px;
  }

  .messages {
    padding: 12px;
  }

  .todo-panel {
    width: 100%;
  }
}

/* ===== Preset Selector ===== */
.preset-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 300;
}

.preset-overlay.hidden {
  display: none;
}

.preset-modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: 20px;
  min-width: 320px;
  max-width: 420px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}

.preset-modal h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 14px;
  color: var(--text-primary);
  font-family: var(--font-heading);
}

.preset-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.preset-option {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  cursor: pointer;
  text-align: left;
  transition: background 0.15s, border-color 0.15s;
  color: var(--text-primary);
  font-family: var(--font-sans);
}

.preset-option:hover {
  background: var(--bg-hover);
  border-color: var(--text-muted);
}

.preset-option.selected {
  border-color: var(--accent-blue);
  background: var(--bg-active);
}

.preset-option-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.preset-option-desc {
  font-size: 12px;
  color: var(--text-secondary);
}

/* Options (teams toggle, etc.) */
.preset-options {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border-primary);
}

.toggle-option {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  padding: 8px 0;
}

.toggle-option input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent-blue);
  cursor: pointer;
}

.toggle-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.toggle-desc {
  width: 100%;
  font-size: 12px;
  color: var(--text-muted);
  padding-left: 24px;
}

/* Create button */
.preset-create-btn {
  width: 100%;
  margin-top: 14px;
  padding: 10px;
  background: var(--accent-blue);
  color: var(--bg-primary);
  border: none;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 600;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: opacity 0.15s;
}

.preset-create-btn:hover {
  opacity: 0.85;
}

/* ===== Dev Panel ===== */
.dev-panel {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 40vh;
  background: #0d0d0c;
  border-top: 1px solid var(--border-primary);
  display: flex;
  flex-direction: column;
  z-index: 200;
  font-family: var(--font-mono);
  font-size: 12px;
  transition: transform 0.2s ease;
}

.dev-panel.collapsed {
  transform: translateY(100%);
}

/* Drag handle */
.dev-drag-handle {
  height: 6px;
  cursor: ns-resize;
  background: transparent;
  flex-shrink: 0;
  position: relative;
}

.dev-drag-handle::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 2px;
  transform: translateX(-50%);
  width: 40px;
  height: 3px;
  border-radius: 2px;
  background: var(--text-muted);
  opacity: 0.5;
}

.dev-drag-handle:hover::after {
  opacity: 1;
}

/* Toolbar */
.dev-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 12px;
  background: #141413;
  border-bottom: 1px solid var(--border-primary);
  flex-shrink: 0;
  gap: 12px;
}

.dev-toolbar-title {
  font-weight: 600;
  font-size: 11px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.dev-toolbar-controls {
  display: flex;
  align-items: center;
  gap: 10px;
}

.dev-toolbar-controls select {
  background: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-sm);
  padding: 3px 6px;
  font-size: 11px;
  font-family: var(--font-mono);
  cursor: pointer;
}

.dev-autoscroll-label {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  color: var(--text-secondary);
  cursor: pointer;
  white-space: nowrap;
}

.dev-autoscroll-label input {
  cursor: pointer;
}

.dev-toolbar-controls button {
  background: var(--bg-input);
  color: var(--text-secondary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-sm);
  padding: 3px 10px;
  font-size: 11px;
  font-family: var(--font-mono);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.dev-toolbar-controls button:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

/* Log area */
.dev-log {
  flex: 1;
  overflow-y: auto;
  padding: 4px 0;
}

/* Log entries */
.dev-entry {
  border-bottom: 1px solid #1b1b1980;
}

.dev-entry-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 12px;
  cursor: pointer;
  transition: background 0.1s;
  line-height: 1.4;
}

.dev-entry-header:hover {
  background: #1b1b19;
}

.dev-ts {
  color: var(--text-muted);
  flex-shrink: 0;
  font-size: 11px;
}

.dev-arrow {
  flex-shrink: 0;
  font-weight: 700;
  font-size: 11px;
}

.dev-arrow-sent { color: var(--accent-blue); }
.dev-arrow-received { color: var(--accent-green); }
.dev-arrow-llm { color: var(--accent-purple); }
.dev-arrow-status { color: var(--accent-orange); }

.dev-badge {
  background: var(--bg-hover);
  color: var(--text-primary);
  padding: 1px 6px;
  border-radius: 3px;
  font-size: 10px;
  font-weight: 600;
  flex-shrink: 0;
}

.dev-sent .dev-badge { background: #6a9bcc20; color: var(--accent-blue); }
.dev-received .dev-badge { background: #788c5d20; color: var(--accent-green); }
.dev-llm .dev-badge { background: #bc8cff20; color: var(--accent-purple); }
.dev-status .dev-badge { background: #d9775720; color: var(--accent-orange); }

.dev-coalesce-count {
  color: var(--accent-orange);
  font-size: 10px;
  font-weight: 700;
  flex-shrink: 0;
}

.dev-preview {
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
  font-size: 11px;
}

/* Expanded body */
.dev-entry-body {
  display: none;
  padding: 4px 12px 8px 12px;
  background: #0d0d0c;
}

.dev-entry.expanded .dev-entry-body {
  display: block;
}

.dev-entry-body pre {
  white-space: pre-wrap;
  word-break: break-all;
  color: var(--text-secondary);
  font-size: 11px;
  line-height: 1.5;
  margin: 0;
}

/* Toggle button in header */
.dev-toggle-btn {
  background: var(--bg-input);
  color: var(--text-muted);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-sm);
  padding: 3px 10px;
  font-size: 11px;
  font-family: var(--font-mono);
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.dev-toggle-btn:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

.dev-toggle-btn.active {
  color: var(--accent-green);
  border-color: var(--accent-green);
  background: #788c5d15;
}

/* ===== File Panel ===== */
.file-panel {
  width: 420px;
  min-width: 0;
  max-width: 420px;
  background: var(--bg-secondary);
  border-left: 1px solid var(--border-primary);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: width 0.25s ease, min-width 0.25s ease, max-width 0.25s ease, opacity 0.2s ease;
}

.file-panel.collapsed {
  width: 0;
  min-width: 0;
  max-width: 0;
  border-left: none;
  opacity: 0;
  pointer-events: none;
}

/* Header */
.fp-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-primary);
  flex-shrink: 0;
  gap: 8px;
}

.fp-header-left {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.fp-header-right {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.fp-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.fp-back-btn,
.fp-upload-btn,
.fp-refresh-btn,
.fp-close-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 16px;
  cursor: pointer;
  padding: 2px 4px;
  line-height: 1;
  border-radius: var(--radius-sm);
  transition: color 0.15s, background 0.15s;
}

.fp-back-btn:hover,
.fp-upload-btn:hover,
.fp-refresh-btn:hover,
.fp-close-btn:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

/* Body */
.fp-body {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
}

/* Empty state */
.fp-empty {
  padding: 40px 20px;
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
}

/* File list */
.fp-list {
  display: flex;
  flex-direction: column;
}

.fp-file-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 14px;
  cursor: pointer;
  transition: background 0.15s;
  border-bottom: 1px solid var(--border-secondary);
}

.fp-file-item:last-child {
  border-bottom: none;
}

.fp-file-item:hover {
  background: var(--bg-hover);
}

.fp-file-icon {
  font-size: 16px;
  flex-shrink: 0;
  width: 22px;
  text-align: center;
}

.fp-file-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.fp-file-name {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.fp-file-size {
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* Preview */
.fp-preview {
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.fp-preview-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  border-bottom: 1px solid var(--border-secondary);
  flex-shrink: 0;
}

.fp-meta-size {
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.fp-meta-download {
  font-size: 11px;
  color: var(--accent-blue);
  text-decoration: none;
  font-weight: 600;
}

.fp-meta-download:hover {
  text-decoration: underline;
}

.fp-preview-content {
  flex: 1;
  overflow: auto;
  padding: 0;
}

.fp-preview-content pre {
  margin: 0;
  border-radius: 0;
}

.fp-preview-content pre code {
  display: block;
  padding: 14px;
  background: var(--bg-primary);
  font-size: 12px;
  line-height: 1.5;
  font-family: var(--font-mono);
  white-space: pre-wrap;
  word-break: break-all;
}

.fp-markdown {
  padding: 14px;
  font-size: 13px;
  line-height: 1.6;
}

.fp-binary-notice {
  padding: 40px 20px;
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
}

.fp-loading {
  padding: 40px 20px;
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
}

.fp-error {
  padding: 40px 20px;
  text-align: center;
  color: var(--accent-red);
  font-size: 13px;
}

/* Files toggle button active state (distinct from Dev) */
.files-toggle-btn.active {
  color: var(--accent-blue);
  border-color: var(--accent-blue);
  background: #6a9bcc15;
}

/* ===== Header Toggle Buttons (Teams, Approval) ===== */
.header-toggle-btn {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-sm);
  padding: 3px 10px;
  font-size: 11px;
  font-family: var(--font-mono);
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.header-toggle-btn:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

.header-toggle-btn.hidden {
  display: none;
}

#teams-btn.active {
  color: var(--accent-purple);
  border-color: var(--accent-purple);
  background: #bc8cff15;
}

#approval-btn.active {
  color: var(--accent-orange);
  border-color: var(--accent-orange);
  background: #d9775715;
}

/* ===== Plan Mode Button ===== */
.plan-mode-btn {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-sm);
  padding: 3px 10px;
  font-size: 11px;
  font-family: var(--font-mono);
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.plan-mode-btn:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

.plan-mode-btn.active {
  color: var(--accent-blue);
  border-color: var(--accent-blue);
  background: #6a9bcc15;
}

.plan-mode-btn.hidden {
  display: none;
}

/* ===== Plan Approval Overlay ===== */
.plan-approval-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 400;
}

.plan-approval-overlay.hidden {
  display: none;
}

.plan-approval-modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: 20px;
  max-width: 700px;
  width: 90%;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
}

.plan-approval-modal h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 14px;
  color: var(--text-primary);
  font-family: var(--font-heading);
}

.plan-content {
  flex: 1;
  overflow-y: auto;
  background: var(--bg-primary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  padding: 16px;
  margin-bottom: 14px;
  line-height: 1.6;
  font-size: 13px;
}

.plan-content h2, .plan-content h3 {
  margin-top: 12px;
  margin-bottom: 6px;
}

.plan-content code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--bg-input);
  padding: 2px 6px;
  border-radius: 4px;
}

.plan-content pre code {
  display: block;
  padding: 10px 12px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
}

.plan-content ul, .plan-content ol {
  padding-left: 20px;
  margin: 6px 0;
}

.plan-approval-actions {
  display: flex;
  gap: 10px;
  margin-bottom: 10px;
}

.plan-feedback-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.plan-feedback-section.hidden {
  display: none;
}

.plan-feedback-section textarea {
  background: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  padding: 10px;
  font-family: var(--font-sans);
  font-size: 13px;
  resize: vertical;
}

.plan-feedback-section textarea:focus {
  outline: none;
  border-color: var(--accent-blue);
}

/* ===== File panel drag-over highlight ===== */

.fp-body.fp-dragover {
  background: rgba(106, 155, 204, 0.06);
  outline: 2px dashed var(--accent-blue);
  outline-offset: -4px;
}

/* ===== File Panel Responsive ===== */
@media (max-width: 768px) {
  .file-panel {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    max-width: 100%;
    height: 100vh;
    z-index: 150;
    transform: translateX(0);
    transition: transform 0.25s ease;
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.3);
  }

  .file-panel.collapsed {
    transform: translateX(100%);
    width: 100%;
    max-width: 100%;
    opacity: 1;
    pointer-events: none;
  }
}