/* CSS Design System for Travel Planner AI */
:root {
  --bg-dark: #0f172a;
  --bg-panel: #1e293b;
  --bg-input: #0f172a;
  --border-color: #334155;
  --primary-color: #3b82f6;
  --primary-hover: #2563eb;
  --accent-color: #8b5cf6;
  --accent-hover: #7c3aed;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --danger-color: #ef4444;
  --code-bg: #090d16;
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-heading: 'Outfit', sans-serif;
  --font-mono: 'Fira Code', monospace;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body.dark-theme {
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-family);
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 24px;
  background-color: rgba(30, 41, 59, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  height: 60px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-icon {
  font-size: 1.8rem;
}

.brand-text h1 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
}

.model-badge {
  font-size: 0.75rem;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  color: #fff;
  padding: 2px 8px;
  border-radius: 12px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.header-actions {
  display: flex;
  gap: 10px;
}

/* Buttons */
.btn {
  padding: 8px 14px;
  border-radius: 8px;
  border: none;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
}

.btn-primary {
  background-color: var(--primary-color);
  color: #fff;
}
.btn-primary:hover {
  background-color: var(--primary-hover);
}

.btn-secondary {
  background-color: #334155;
  color: #f1f5f9;
}
.btn-secondary:hover {
  background-color: #475569;
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-main);
}
.btn-outline:hover {
  background: rgba(255, 255, 255, 0.05);
}

.btn-accent {
  background-color: var(--accent-color);
  color: #fff;
}
.btn-accent:hover {
  background-color: var(--accent-hover);
}

.btn-sm {
  padding: 4px 10px;
  font-size: 0.8rem;
}

/* Main 3-Column Layout */
.app-container {
  display: grid;
  grid-template-columns: 260px 1fr 1fr;
  height: calc(100vh - 60px);
  overflow: hidden;
}

/* Sidebar (Panel 1) */
.sidebar-panel {
  background-color: #111827;
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

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

.sidebar-header h2 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
}

.chats-list {
  flex: 1;
  overflow-y: auto;
  padding: 10px;

}

.chat-item {
  padding: 10px 12px;
  border-radius: 8px;
  margin-bottom: 6px;
  cursor: pointer;
  background: transparent;
  border: 1px solid transparent;
  transition: all 0.2s ease;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.chat-item:hover {
  background-color: rgba(255, 255, 255, 0.04);
  border-color: var(--border-color);
}

.chat-item.active {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(139, 92, 246, 0.15));
  border-color: var(--primary-color);
}

.chat-title {
  font-size: 0.85rem;
  font-weight: 500;
  color: #f1f5f9;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 170px;
}

.chat-date {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.btn-delete-chat {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  opacity: 0.5;
  padding: 4px;
}

.btn-delete-chat:hover {
  opacity: 1;
  color: var(--danger-color);
}

/* Chat Panel (Panel 2) */
.chat-panel {
  background-color: var(--bg-dark);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.chat-header {
  padding: 12px 20px;
  border-bottom: 1px solid var(--border-color);
  background-color: var(--bg-panel);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.active-session-info h3 {
  font-size: 1rem;
  font-weight: 600;
}

.session-id-tag {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.observability-badge {
  font-size: 0.75rem;
  background-color: rgba(16, 185, 129, 0.15);
  color: var(--success-color);
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 4px 10px;
  border-radius: 12px;
  font-weight: 500;

}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.welcome-card {
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.8), rgba(15, 23, 42, 0.8));
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 24px;
  text-align: center;
  max-width: 550px;
  margin: 20px auto;
}

.welcome-icon {
  font-size: 2.5rem;
  margin-bottom: 10px;
}

.welcome-card h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  margin-bottom: 8px;
}

.welcome-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  line-height: 1.5;
}

.quick-prompts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.prompt-chip {
  background: #1e293b;
  border: 1px solid var(--border-color);
  padding: 6px 12px;
  border-radius: 16px;
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.prompt-chip:hover {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  color: #fff;
}

/* Chat Message Bubbles */
.message-row {
  display: flex;
  flex-direction: column;
  max-width: 85%;
  word-break: break-word;
  overflow-wrap: break-word;
}

.message-row.user {
  align-self: flex-end;
}

.message-row.assistant {
  align-self: flex-start;
}

.message-sender {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 4px;
  padding: 0 4px;
}

.message-bubble {
  padding: 16px 20px;
  border-radius: 12px;
  font-size: 0.92rem;
  line-height: 1.6;
  word-break: break-word;
  overflow-wrap: break-word;
  max-width: 100%;
  box-sizing: border-box;
}

/* Formatting within chat bubbles */
.message-bubble p {
  margin-top: 0;
  margin-bottom: 8px;
}

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

/* Lists in messages (Unordered and Numbered) */
.message-bubble ul,
.message-bubble ol {
  padding-left: 24px;
  margin-top: 6px;
  margin-bottom: 10px;
}

.message-bubble ul {
  list-style-type: disc;
}

.message-bubble ol {
  list-style-type: decimal;
}

.message-bubble li {
  margin-bottom: 4px;
  line-height: 1.5;
}

.message-bubble li:last-child {
  margin-bottom: 0;
}

.message-bubble li > ul,
.message-bubble li > ol {
  margin-top: 4px;
  margin-bottom: 4px;
  padding-left: 20px;
}

.message-bubble code {
  background-color: rgba(15, 23, 42, 0.6);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.85em;
}

.message-bubble pre {
  background-color: var(--code-bg);
  padding: 12px;
  border-radius: 8px;
  overflow-x: auto;
  margin: 8px 0;
  max-width: 100%;
}

.message-bubble pre code {
  background-color: transparent;
  padding: 0;
}

/* Image styling in message bubbles and itinerary preview */
.message-bubble img,
.markdown-body img {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  margin: 12px 0;
  border: 1px solid var(--border-color);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
  display: block;
  object-fit: cover;
  max-height: 260px;
  transition: transform 0.2s ease;
}

.message-bubble img:hover,
.markdown-body img:hover {
  transform: scale(1.01);
}

/* Permission Approval Action Card */
.permission-approval-card {
  margin-top: 12px;
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.95), rgba(15, 23, 42, 0.95));
  border: 1px solid #f59e0b;
  border-radius: 10px;
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.permission-title {
  color: #f59e0b;
  font-weight: 600;
  font-size: 0.88rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.permission-actions {
  display: flex;
  gap: 10px;
}

.btn-approve {
  background-color: var(--success-color);
  color: #fff;
  border: none;
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
}

.btn-approve:hover {
  background-color: #059669;
}

.btn-reject {
  background-color: #334155;
  color: var(--text-muted);
  border: none;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.82rem;
  cursor: pointer;
}

.btn-reject:hover {
  background-color: #475569;
  color: #fff;
}

.message-row.user .message-bubble {
  background-color: var(--primary-color);
  color: #fff;
  border-bottom-right-radius: 2px;
}

.message-row.assistant .message-bubble {
  background-color: var(--bg-panel);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  border-bottom-left-radius: 2px;
}

/* Tool Execution Stack Trace Accordion */
.tool-trace-box {
  margin-top: 10px;
  background-color: var(--code-bg);
  border: 1px solid #334155;
  border-radius: 8px;
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.tool-trace-header {
  padding: 8px 12px;
  background-color: #1e293b;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}

.tool-trace-header:hover {
  background-color: #334155;
}

.trace-title {
  color: #38bdf8;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

.trace-body {
  padding: 12px;
  border-top: 1px solid #334155;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.trace-body.hidden {
  display: none;
}

.trace-item {
  background-color: #0f172a;
  border: 1px solid #1e293b;
  border-radius: 6px;
  padding: 8px 10px;
}

.trace-item-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.tool-name-badge {
  background-color: #312e81;
  color: #a5b4fc;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
}

.tool-duration {
  color: var(--text-muted);
  font-size: 0.7rem;
}

.trace-detail-block {
  background-color: #030712;
  padding: 6px 8px;
  border-radius: 4px;
  overflow-x: auto;
  color: #e2e8f0;
  white-space: pre-wrap;
  word-break: break-all;
}

/* Chat Input Controls */
.chat-input-area {
  padding: 16px 20px;
  background-color: var(--bg-panel);
  border-top: 1px solid var(--border-color);
}

.input-wrapper {
  display: flex;
  gap: 10px;
}

textarea#chat-input {
  flex: 1;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 10px 14px;
  color: var(--text-main);
  font-family: var(--font-family);
  font-size: 0.9rem;
  resize: none;
  outline: none;
}

textarea#chat-input:focus {
  border-color: var(--primary-color);
}

.btn-send {
  background-color: var(--primary-color);
  color: #fff;
  padding: 0 18px;
}

.input-footer {
  margin-top: 10px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.edit-mode-selector {
  display: flex;
  align-items: center;
  gap: 6px;
  background-color: #0f172a;
  padding: 4px 10px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
}

.mode-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 4px;
}

.mode-select {
  background-color: var(--bg-input);
  color: #f59e0b;
  font-weight: 600;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 2px 6px;
  font-size: 0.78rem;
  outline: none;
  cursor: pointer;
}

.mode-select:focus {
  border-color: var(--primary-color);
}

/* Claude Code Style Context Pill */
.claude-context-pill {
  display: inline-flex;
  align-items: center;
  cursor: pointer;
  user-select: none;
}

.claude-context-pill input[type="checkbox"] {
  display: none;
}

.claude-context-pill .pill-content {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(30, 41, 59, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  padding: 5px 12px;
  font-size: 0.8rem;
  color: var(--text-main);
  transition: all 0.2s ease;
  backdrop-filter: blur(4px);
}

.claude-context-pill:hover .pill-content {
  background: rgba(30, 41, 59, 0.95);
  border-color: var(--primary-color);
  box-shadow: 0 0 10px rgba(56, 189, 248, 0.2);
}

.claude-context-pill .file-icon {
  color: #38bdf8;
  font-size: 0.85rem;
}

.claude-context-pill .file-name {
  font-family: 'Fira Code', monospace;
  font-size: 0.78rem;
  font-weight: 500;
  color: #e2e8f0;
}

.claude-context-pill .pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background-color: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 1px 6px;
  border-radius: 12px;
  font-size: 0.7rem;
  font-weight: 600;
}

.claude-context-pill .pill-badge .dot {
  width: 6px;
  height: 6px;
  background-color: #10b981;
  border-radius: 50%;
  box-shadow: 0 0 6px #10b981;
}

/* Unchecked State */
.claude-context-pill input[type="checkbox"]:not(:checked) + .pill-content {
  opacity: 0.55;
  background: rgba(15, 23, 42, 0.4);
  border-color: rgba(255, 255, 255, 0.05);
}

.claude-context-pill input[type="checkbox"]:not(:checked) + .pill-content .file-icon {
  color: #64748b;
}

.claude-context-pill input[type="checkbox"]:not(:checked) + .pill-content .pill-badge {
  background-color: rgba(100, 116, 139, 0.15);
  color: #94a3b8;
  border-color: rgba(100, 116, 139, 0.3);
}

.claude-context-pill input[type="checkbox"]:not(:checked) + .pill-content .pill-badge .dot {
  background-color: #64748b;
  box-shadow: none;
}

.checkbox-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}

/* Itinerary Panel (Panel 3) */
.itinerary-panel {
  background-color: #0b1120;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.panel-header {
  padding: 12px 20px;
  background-color: var(--bg-panel);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.panel-title {
  display: flex;
  align-items: center;
  gap: 8px;
}

.panel-title h2 {
  font-size: 0.95rem;
  font-weight: 600;
}

.file-tag {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.tab-controls {
  display: flex;
  background-color: #0f172a;
  padding: 3px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
}

.tab-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.78rem;
  cursor: pointer;
}

.tab-btn.active {
  background-color: var(--primary-color);
  color: #fff;
  font-weight: 600;
}

.editor-status-bar {
  display: flex;
  justify-content: space-between;
  padding: 6px 16px;
  background-color: #0f172a;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.status-saved {
  color: var(--success-color);
}
.status-unsaved {
  color: var(--warning-color);
}

.editor-container, .preview-container {
  flex: 1;
  overflow: hidden;
  display: flex;
}

textarea#itinerary-editor {
  flex: 1;
  width: 100%;
  height: 100%;
  background-color: #080d1a;
  color: #38bdf8;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.5;
  padding: 16px;
  border: none;
  outline: none;
  resize: none;
}

.preview-container {
  overflow-y: auto;
  padding: 24px;
}

.markdown-body {
  color: var(--text-main);
  line-height: 1.6;
  width: 100%;
}

.markdown-body h1, .markdown-body h2, .markdown-body h3 {
  font-family: var(--font-heading);
  margin-top: 20px;
  margin-bottom: 10px;
  color: #f1f5f9;
}

.markdown-body h1 { font-size: 1.5rem; border-bottom: 1px solid var(--border-color); padding-bottom: 6px; }
.markdown-body h2 { font-size: 1.2rem; }
.markdown-body h3 { font-size: 1rem; }

.markdown-body p {
  margin-top: 0;
  margin-bottom: 12px;
  font-size: 0.9rem;
}

/* Lists in Formatted Markdown Preview */
.markdown-body ul, 
.markdown-body ol {
  padding-left: 28px !important;
  margin-top: 8px;
  margin-bottom: 16px;
  font-size: 0.9rem;
}

.markdown-body ul {
  list-style-type: disc !important;
}

.markdown-body ol {
  list-style-type: decimal !important;
}

.markdown-body li {
  margin-bottom: 6px;
  line-height: 1.6;
  display: list-item !important;
}

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

.markdown-body li > ul,
.markdown-body li > ol {
  margin-top: 4px;
  margin-bottom: 4px;
  padding-left: 20px !important;
}

/* Task lists (- [ ] or - [x]) */
.markdown-body ul:has(input[type="checkbox"]) {
  list-style-type: none !important;
  padding-left: 12px !important;
}

.markdown-body input[type="checkbox"] {
  margin-right: 8px;
  accent-color: var(--primary-color);
}

.markdown-body blockquote {
  border-left: 4px solid var(--primary-color);
  background-color: rgba(59, 130, 246, 0.1);
  padding: 10px 16px;
  border-radius: 0 8px 8px 0;
  margin: 12px 0;
  color: #38bdf8;
}

.markdown-body blockquote p {
  margin-bottom: 0;
}

.markdown-body table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 12px;
  margin-bottom: 16px;
}

.markdown-body th, .markdown-body td {
  border: 1px solid var(--border-color);
  padding: 8px 12px;
  font-size: 0.85rem;
}

.markdown-body th {
  background-color: var(--bg-panel);
}

.hidden {
  display: none !important;
}

/* Claude Code Style Modal Overlay & Popup */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(2, 6, 23, 0.82);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn 0.25s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: scale(0.98); }
  to { opacity: 1; transform: scale(1); }
}

.permission-modal-content {
  background: #0f172a;
  border: 1px solid #38bdf8;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.8), 0 0 20px rgba(56, 189, 248, 0.2);
  border-radius: 12px;
  width: 100%;
  max-width: 720px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.modal-header {
  padding: 14px 20px;
  background: rgba(15, 23, 42, 0.95);
  border-bottom: 1px solid #1e293b;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-title {
  color: #38bdf8;
  font-weight: 700;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn-icon {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.1rem;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
  transition: all 0.2s;
}

.btn-icon:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.modal-body {
  padding: 20px;
  overflow-y: auto;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.permission-prompt-card {
  background: linear-gradient(135deg, rgba(30, 58, 138, 0.3), rgba(15, 23, 42, 0.6));
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: 8px;
  padding: 14px 16px;
}

.permission-prompt-header {
  color: #f59e0b;
  font-weight: 600;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.permission-prompt-text {
  color: #cbd5e1;
  font-size: 0.85rem;
  margin: 0;
  line-height: 1.4;
}

.preview-box-header {
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

.modal-diff-box {
  background: #020617;
  border: 1px solid #1e293b;
  border-radius: 8px;
  padding: 16px;
  max-height: 320px;
  overflow-y: auto;
  font-size: 0.85rem;
}

.modal-footer {
  padding: 14px 20px;
  background: #090d16;
  border-top: 1px solid #1e293b;
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

.btn-warning {
  background: rgba(245, 158, 11, 0.15);
  color: #f59e0b;
  border: 1px solid rgba(245, 158, 11, 0.4);
}

.btn-warning:hover {
  background: rgba(245, 158, 11, 0.3);
  border-color: #f59e0b;
}

.btn-glow {
  box-shadow: 0 0 12px rgba(56, 189, 248, 0.4);
}

/* Google Maps Embed Tab View */
.map-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--bg-dark);
  overflow: hidden;
}

.map-toolbar {
  padding: 10px 16px;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.map-toolbar-info {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-light);
  display: flex;
  align-items: center;
  gap: 8px;
}

.map-select {
  background: #0f172a;
  color: #f1f5f9;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 6px 12px;
  font-size: 0.8rem;
  cursor: pointer;
  outline: none;
}

.map-select:focus {
  border-color: var(--primary-color);
}

.map-frame-wrapper {
  flex: 1;
  min-height: 280px;
  width: 100%;
  background: #0f172a;
  position: relative;
}

.map-locations-section {
  padding: 12px 16px;
  background: var(--bg-panel);
  border-top: 1px solid var(--border-color);
  max-height: 160px;
  overflow-y: auto;
}

.section-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.map-locations-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.map-spot-chip {
  background: #1e293b;
  color: #cbd5e1;
  border: 1px solid #334155;
  border-radius: 20px;
  padding: 5px 12px;
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
}

.map-spot-chip:hover {
  background: #334155;
  color: #fff;
  border-color: var(--primary-color);
}

.map-spot-chip.active {
  background: rgba(56, 189, 248, 0.15);
  color: var(--primary-color);
  border-color: var(--primary-color);
  box-shadow: 0 0 8px rgba(56, 189, 248, 0.2);
}

/* --- PROPOSED DIFF TAB STYLES --- */
.diff-container {
  display: flex;
  flex-direction: column;
  height: 100%;
  background-color: var(--card-bg);
  border-radius: var(--border-radius);
  overflow: hidden;
}

.diff-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background-color: rgba(15, 23, 42, 0.8);
  border-bottom: 1px solid var(--border-color);
  font-weight: 600;
  font-size: 0.9rem;
}

.diff-toolbar-info {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--warning-color);
}

.diff-view-content {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  font-family: var(--font-mono, monospace);
  font-size: 0.85rem;
  line-height: 1.5;
  background-color: #0d1117;
  color: #c9d1d9;
}

.diff-line {
  white-space: pre-wrap;
  word-break: break-word;
  padding: 2px 8px;
  border-radius: 2px;
  font-family: var(--font-mono, monospace);
}

.diff-line.added {
  background-color: rgba(46, 160, 67, 0.2);
  color: #7ee787;
  border-left: 3px solid #2ea043;
}

.diff-line.removed {
  background-color: rgba(248, 81, 73, 0.2);
  color: #ff7b72;
  border-left: 3px solid #f85149;
}

.diff-line.unchanged {
  color: #8b949e;
  border-left: 3px solid transparent;
}