/* Developer Panel - Now a modal */
/* When dev panel is a modal, override fixed positioning */
.modal#devPanel {
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	width: 100%;
	height: 100%;
	display: none;
	align-items: center;
	justify-content: center;
	z-index: 1000;
	background: rgba(0, 0, 0, 0.5);
	backdrop-filter: blur(4px);
}

.modal#devPanel.show {
	display: flex;
}

.modal#devPanel .dev-modal-content {
	display: flex;
	flex-direction: column;
	width: 90%;
	max-width: 1200px;
	height: 85vh;
	max-height: 900px;
	background: var(--bg-secondary, #f8fafc);
	border-radius: 12px;
	box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
	overflow: hidden;
}

.modal#devPanel .dev-modal-content .modal-header {
	padding: 16px 20px;
	border-bottom: 1px solid var(--bg-tertiary, #e2e8f0);
	flex-shrink: 0;
	position: relative;
	z-index: 1;
}

.modal#devPanel .modal-close {
	position: relative;
	z-index: 10;
	cursor: pointer;
	pointer-events: auto;
}

/* Desktop: Modal header layout - horizontal */
.modal#devPanel .dev-modal-content .dev-panel-header {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: space-between;
	gap: 12px;
	padding: 12px 20px;
	border-bottom: 1px solid var(--bg-tertiary, #e2e8f0);
	flex-shrink: 0;
}

.modal#devPanel .dev-modal-content .dev-panel-body {
	flex: 1;
	overflow-y: auto;
	overflow-x: hidden;
	min-height: 0;
}

.modal#devPanel .dev-modal-content .dev-tabs {
	display: inline-flex;
	gap: 8px;
	flex-wrap: wrap;
}

.modal#devPanel .dev-modal-content .dev-panel-actions {
	display: inline-flex;
	gap: 8px;
	flex-wrap: wrap;
	align-items: center;
}

/* Tablet: Slightly larger modal, header may wrap */
@media (max-width: 900px) {
	.modal#devPanel .dev-modal-content {
		width: 95%;
		height: 80vh;
		max-height: 800px;
	}
	
	.modal#devPanel .dev-modal-content .dev-panel-header {
		padding: 10px 16px;
		gap: 10px;
	}
	
	.modal#devPanel .dev-modal-content .dev-tab {
		font-size: 11px;
		padding: 6px 10px;
	}
	
	.modal#devPanel .dev-modal-content .dev-filter {
		font-size: 11px;
		min-width: 100px;
	}
	
	.modal#devPanel .dev-modal-content .dev-panel-actions button {
		font-size: 10px;
		padding: 6px 10px;
	}
}

/* Mobile: Full-screen modal, stacked header */
@media (max-width: 768px) {
	.modal#devPanel .dev-modal-content {
		width: 100%;
		height: 100vh;
		max-height: 100vh;
		border-radius: 0;
	}
	
	.modal#devPanel .dev-modal-content .modal-header {
		padding: 12px 16px;
	}
	
	.modal#devPanel .dev-modal-content .dev-panel-header {
		flex-direction: column;
		align-items: stretch;
		padding: 10px 12px;
		gap: 10px;
	}
	
	.modal#devPanel .dev-modal-content .dev-tabs {
		width: 100%;
		justify-content: space-between;
	}
	
	.modal#devPanel .dev-modal-content .dev-tab {
		flex: 1 1 auto;
		font-size: 11px;
		padding: 10px 8px;
		min-height: 44px; /* Touch-friendly target */
	}
	
	.modal#devPanel .dev-modal-content .dev-panel-actions {
		width: 100%;
		justify-content: space-between;
		gap: 6px;
	}
	
	.modal#devPanel .dev-modal-content .dev-filter {
		flex: 1 1 auto;
		min-width: 0;
		font-size: 11px;
		padding: 10px;
		min-height: 44px;
	}
	
	.modal#devPanel .dev-modal-content .dev-panel-actions button {
		flex: 1 1 auto;
		font-size: 10px;
		padding: 10px 8px;
		min-height: 44px;
		min-width: 60px;
	}
	
	.modal#devPanel .dev-modal-content .dev-panel-body {
		padding: 8px 12px;
		font-size: 11px;
	}
	
	.modal#devPanel .dev-modal-content .dev-log-line {
		padding: 10px 12px;
		font-size: 11px;
		margin-bottom: 8px;
	}
}

/* Small Mobile: Even more compact */
@media (max-width: 480px) {
	.modal#devPanel .dev-modal-content .modal-header {
		padding: 10px 12px;
	}
	
	.modal#devPanel .dev-modal-content .modal-header h2 {
		font-size: 1.1rem;
	}
	
	.modal#devPanel .dev-modal-content .dev-panel-header {
		padding: 8px 10px;
		gap: 8px;
	}
	
	.modal#devPanel .dev-modal-content .dev-tab {
		font-size: 10px;
		padding: 8px 6px;
		min-height: 40px;
	}
	
	.modal#devPanel .dev-modal-content .dev-filter {
		font-size: 10px;
		padding: 8px;
		min-height: 40px;
	}
	
	.modal#devPanel .dev-modal-content .dev-panel-actions button {
		font-size: 9px;
		padding: 8px 6px;
		min-height: 40px;
		min-width: 50px;
	}
	
	.modal#devPanel .dev-modal-content .dev-panel-body {
		padding: 6px 10px;
		font-size: 10px;
	}
	
	.modal#devPanel .dev-modal-content .dev-log-line {
		padding: 8px 10px;
		font-size: 10px;
		margin-bottom: 6px;
	}
	
	.modal#devPanel .dev-modal-content .dev-change-card {
		margin-bottom: 6px;
	}
	
	.modal#devPanel .dev-modal-content .dev-change-header,
	.modal#devPanel .dev-modal-content .dev-change-body {
		padding: 6px 8px;
		font-size: 10px;
	}
	
	.modal#devPanel .dev-modal-content .dev-raw-line {
		padding: 6px 8px;
		font-size: 10px;
		margin-bottom: 4px;
	}
}

/* Raw Log Styling */
.modal#devPanel .dev-raw-line {
	margin: 0 0 8px 0;
	padding: 8px 12px;
	background: var(--bg-tertiary, #f1f5f9);
	border-radius: 4px;
	font-size: 12px;
	line-height: 1.5;
	white-space: pre-wrap;
	word-break: break-word;
	overflow-wrap: break-word;
	color: var(--text-primary, #1e293b);
	font-family: 'Courier New', monospace;
	max-width: 100%;
	overflow-x: auto;
}

.modal#devPanel .dev-raw-line[data-source="stdout"] {
	border-left: 3px solid #4CAF50;
}

.modal#devPanel .dev-raw-line[data-source="stderr"] {
	border-left: 3px solid #F44336;
}

.modal#devPanel .dev-raw-timestamp {
	color: var(--text-secondary, #64748b);
	font-weight: 500;
	margin-right: 8px;
}

.modal#devPanel .dev-raw-source {
	font-weight: 600;
	margin-right: 8px;
}

.modal#devPanel .dev-raw-content {
	color: var(--text-primary, #1e293b);
}

/* Run Boundary and Summary Styles */
.dev-run-boundary {
	margin: 16px 0;
	padding: 12px;
	background: var(--bg-secondary, #f8fafc);
	border-left: 3px solid var(--primary-color, #3b82f6);
	border-radius: 4px;
}

.dev-run-summary {
	display: flex;
	flex-direction: column;
	gap: 8px;
}

.dev-run-summary-header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 8px;
}

.dev-run-number {
	font-weight: 600;
	color: var(--text-primary, #1e293b);
	font-size: 14px;
}

.dev-run-active {
	font-size: 11px;
	padding: 2px 6px;
	background: var(--success-color, #10b981);
	color: white;
	border-radius: 3px;
	font-weight: 500;
}

.dev-run-summary-preview {
	color: var(--text-secondary, #64748b);
	font-size: 13px;
	line-height: 1.4;
}

.dev-run-summary-stats {
	color: var(--text-muted, #94a3b8);
	font-size: 12px;
}

.dev-undo-run-btn {
	margin-top: 8px;
	padding: 6px 12px;
	background: var(--danger-color, #ef4444);
	color: white;
	border: none;
	border-radius: 4px;
	font-size: 12px;
	font-weight: 500;
	cursor: pointer;
	transition: background-color 0.2s;
	align-self: flex-start;
}

.dev-undo-run-btn:hover {
	background: var(--danger-color-dark, #dc2626);
}

.dev-undo-run-btn:active {
	background: var(--danger-color-darker, #b91c1c);
}

/* Developer Panel - positioned on right, but doesn't cover sidebar */
/* This is now only used for legacy support, modal version above takes precedence */
.dev-panel:not(.modal) { 
	position: fixed; 
	right: 0; 
	top: 64px; 
	bottom: 0; 
	/* Width calculation: account for sidebar (280px) + margin (20px) */
	width: min(clamp(480px, 30vw, 650px), calc(100vw - 300px)); 
	background: var(--bg-secondary, #f8fafc); 
	border-left: 1px solid var(--bg-tertiary, #e2e8f0); 
	display: flex; 
	flex-direction: column; 
	z-index: 50; /* Below sidebar (z-index: 100) */
	overscroll-behavior: contain; 
	-webkit-overflow-scrolling: touch; 
	color: var(--text-primary, #1e293b); 
	box-shadow: -2px 0 8px rgba(0, 0, 0, 0.1); 
	overflow: hidden;
}
.dev-panel.hidden { display: none !important; }
/* Hide dev panel when NOT in developer mode */
body:not(.dev-mode) .dev-panel,
body:not(.dev-mode) #devPanel {
	display: none !important;
}

/* Dev Panel Toggle Button - only visible in dev mode */
.dev-panel-toggle {
	display: none;
	/* Inherit vision-toggle styles */
	background: transparent;
	border: none;
	cursor: pointer;
	padding: 8px;
	align-items: center;
	justify-content: center;
	color: var(--text-secondary);
	transition: color 0.2s, background-color 0.2s;
	border-radius: 6px;
}

body.dev-mode .dev-panel-toggle {
	display: inline-flex;
}

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

.dev-panel-toggle:active {
	transform: scale(0.95);
}

.dev-panel-toggle.hidden {
	display: none !important;
}

/* Responsive toggle button */
@media (max-width: 768px) {
	.dev-panel-toggle {
		padding: 10px;
		min-width: 44px;
		min-height: 44px;
	}
}
/* Legacy collapsed styles removed - modal doesn't use collapse functionality */
.dev-panel-header { 
	display: flex; 
	flex-wrap: wrap; 
	align-items: center; 
	justify-content: space-between; 
	gap: 8px;
	padding: 8px 12px; 
	border-bottom: 1px solid var(--bg-tertiary, #e2e8f0); 
	flex-shrink: 0; 
	min-width: 0; 
}
.dev-tabs { display: inline-flex; gap: 8px; flex-wrap: wrap; }
.dev-tab { 
	background: transparent; 
	color: var(--text-primary, #1e293b); 
	border: 1px solid var(--bg-tertiary, #e2e8f0); 
	padding: 6px 10px; 
	border-radius: 6px; 
	cursor: pointer; 
	font-size: 12px;
	min-height: 32px; /* Better touch target */
	white-space: nowrap;
}
.dev-tab.active { background: var(--bg-tertiary, #e2e8f0); color: var(--text-primary, #1e293b); }
.dev-panel-actions { 
	display: inline-flex; 
	gap: 6px; 
	flex-wrap: wrap; 
	min-width: 0; 
	flex: 1 1 auto;
	justify-content: flex-end;
}
.dev-filter { 
	min-width: 100px; 
	max-width: 200px;
	flex: 1 1 auto;
	padding: 6px 8px; 
	border-radius: 6px; 
	border: 1px solid var(--bg-tertiary, #e2e8f0); 
	background: var(--bg-primary, #ffffff); 
	color: var(--text-primary, #1e293b);
	font-size: 12px;
}
.dev-panel-actions button { 
	font-size: 11px; 
	padding: 6px 10px; 
	min-height: 32px; /* Better touch target */
	min-width: 44px; /* Minimum touch target */
	background: var(--bg-primary, #ffffff); 
	color: var(--text-primary, #1e293b); 
	border: 1px solid var(--bg-tertiary, #e2e8f0); 
	border-radius: 4px; 
	cursor: pointer;
	white-space: nowrap;
}
.dev-panel-actions button:hover { background: var(--bg-tertiary, #e2e8f0); }
.dev-panel-body { flex: 1; overflow-y: auto; overflow-x: hidden; padding: 8px 12px; color: var(--text-primary, #1e293b); min-width: 0; }
.dev-tabpanel.hidden { display: none; }
.dev-log-line { 
	margin: 0 0 12px 0; 
	padding: 12px 16px; 
	white-space: pre-wrap; 
	word-break: break-word; 
	overflow-wrap: break-word; 
	font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
	line-height: 1.5; 
	color: var(--text-primary, #1e293b);
	background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
	border-radius: 18px 18px 18px 6px;
	border: 1px solid rgba(255, 255, 255, 0.2);
	box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06), 0 2px 6px rgba(0, 0, 0, 0.04);
	position: relative;
	transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
	width: 100%;
	max-width: 100%;
	box-sizing: border-box;
	backdrop-filter: blur(10px);
	overflow-wrap: break-word;
	word-wrap: break-word;
}
.dev-log-line:hover {
	transform: translateY(-1px);
	box-shadow: 0 6px 16px rgba(0, 0, 0, 0.08), 0 3px 8px rgba(0, 0, 0, 0.06);
	background: linear-gradient(135deg, #ffffff 0%, #f1f5f9 100%);
}
.dev-log-line::before {
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	background: linear-gradient(135deg, rgba(255, 255, 255, 0.3) 0%, rgba(255, 255, 255, 0.1) 100%);
	border-radius: inherit;
	pointer-events: none;
}
.dev-change-card { border: 1px solid var(--bg-tertiary, #e2e8f0); border-radius: 8px; margin-bottom: 8px; overflow: hidden; max-width: 100%; box-sizing: border-box; }
.dev-change-header { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 8px 10px; background: var(--bg-tertiary, #f1f5f9); }
.dev-change-body { padding: 8px 10px; color: var(--text-primary, #1e293b); }
.dev-change-body.hidden { display: none; }
.dev-diff { white-space: pre-wrap; overflow-x: auto; overflow-y: auto; color: var(--text-primary, #1e293b); max-width: 100%; word-break: break-word; }
.dev-file { font-weight: 600; color: var(--text-primary, #1e293b); }
.dev-summary { opacity: 0.8; font-size: 0.9em; color: var(--text-secondary, #64748b); }
.dev-actions button { background: transparent; border: 1px solid var(--bg-tertiary, #e2e8f0); padding: 4px 8px; border-radius: 6px; cursor: pointer; color: var(--text-primary, #1e293b); }
.dev-actions button:hover { background: var(--bg-tertiary, #e2e8f0); }

/* Smaller, denser typography when Developer Mode is active */
body.dev-mode .dev-panel { font-size: 12.5px; }
body.dev-mode .dev-log-line { font-size: 12.5px; }
body.dev-mode .dev-diff { font-size: 12.5px; line-height: 1.3; }
body.dev-mode .dev-change-header { padding: 6px 8px; }
body.dev-mode .dev-change-body { padding: 6px 8px; }

/* When NOT in dev-mode: hide panel completely */
body:not(.dev-mode) .dev-panel {
	display: none !important;
}

/* Responsive image messages for very small screens */
.message-wrapper.image-only img {
	max-width: 100%;
	border-radius: var(--radius-md);
}

.message.bot img,
.message.user img {
	max-height: 200px;
	margin: var(--spacing-sm) 0;
}
/* Denser chat and UI typography in dev mode */
body.dev-mode .chat-messages { font-size: 0.9rem; }
body.dev-mode .message { font-size: 0.9rem; line-height: 1.35; }
body.dev-mode pre, body.dev-mode code, body.dev-mode pre code { font-size: 0.85rem; line-height: 1.35; }
body.dev-mode .conversation-title, body.dev-mode .conversation-preview, body.dev-mode .conversation-timestamp { font-size: 0.85rem; }
body.dev-mode .chat-title h1 { font-size: 1rem; }
body.dev-mode .prompt-select, body.dev-mode .voice-select, body.dev-mode .form-input, body.dev-mode .form-select { font-size: 0.9rem; }

/* Awesome Purple Styling for Dev Mode */
body.dev-mode .chat-header {
  border-bottom: 3px solid rgba(139, 92, 246, 0.6);
  box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
  background: linear-gradient(to bottom, rgba(139, 92, 246, 0.05), transparent);
}

body.dev-mode .chat-title h1 {
  color: #8b5cf6;
  text-shadow: 0 2px 4px rgba(139, 92, 246, 0.3);
}

body.dev-mode .chat-icon {
  color: #8b5cf6;
  filter: drop-shadow(0 2px 4px rgba(139, 92, 246, 0.3));
}

body.dev-mode .send-btn {
  background: linear-gradient(135deg, #8b5cf6, #6a11cb);
  box-shadow: 0 2px 8px rgba(139, 92, 246, 0.4);
}

body.dev-mode .send-btn:hover {
  background: linear-gradient(135deg, #7c3aed, #5b21b6);
  box-shadow: 0 4px 12px rgba(139, 92, 246, 0.6);
}

body.dev-mode .message.user {
  background: linear-gradient(135deg, #8b5cf6, #6a11cb);
  box-shadow: 0 2px 8px rgba(139, 92, 246, 0.3);
}

body.dev-mode .message.bot {
  border-left: 3px solid rgba(139, 92, 246, 0.4);
}

body.dev-mode .chat-input-container {
  border-top: 2px solid rgba(139, 92, 246, 0.3);
}

/* Purple outlines for ALL input elements in dev mode */
body.dev-mode .chat-input input:focus,
body.dev-mode .input-row input:focus {
  border-color: #8b5cf6;
  outline: 2px solid rgba(139, 92, 246, 0.3);
  outline-offset: 2px;
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.2);
}

body.dev-mode .prompt-select:focus,
body.dev-mode .voice-select:focus,
body.dev-mode .form-input:focus,
body.dev-mode .form-select:focus,
body.dev-mode .teacher-select:focus {
  border-color: #8b5cf6;
  outline: 2px solid rgba(139, 92, 246, 0.3);
  outline-offset: 2px;
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.2);
}

body.dev-mode .form-group input:focus,
body.dev-mode .form-group textarea:focus,
body.dev-mode .form-group select:focus {
  border-color: #8b5cf6;
  outline: 2px solid rgba(139, 92, 246, 0.3);
  outline-offset: 2px;
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.2);
}

body.dev-mode textarea:focus {
  border-color: #8b5cf6;
  outline: 2px solid rgba(139, 92, 246, 0.3);
  outline-offset: 2px;
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.2);
}

/* Purple borders on inputs even when not focused (subtle) */
body.dev-mode .prompt-select,
body.dev-mode .voice-select {
  border-color: rgba(139, 92, 246, 0.3);
}

body.dev-mode .prompt-select:hover,
body.dev-mode .voice-select:hover {
  border-color: rgba(139, 92, 246, 0.5);
}

/* Activity log level coloring */
.dev-log-line.lvl-error { 
	border-left: 4px solid #ff5c5c; 
	background: linear-gradient(135deg, rgba(255, 92, 92, 0.08) 0%, rgba(239, 68, 68, 0.06) 100%);
}
.dev-log-line.lvl-warn { 
	border-left: 4px solid #ffbf47; 
	background: linear-gradient(135deg, rgba(255, 191, 71, 0.08) 0%, rgba(245, 158, 11, 0.06) 100%);
}
.dev-log-line.lvl-info { 
	border-left: 4px solid #4da3ff; 
	background: linear-gradient(135deg, rgba(77, 163, 255, 0.08) 0%, rgba(59, 130, 246, 0.06) 100%);
}
.dev-log-prefix { 
	opacity: 0.65; 
	margin-right: 8px; 
	color: var(--text-secondary, #64748b);
	font-size: 0.85em;
	font-weight: 500;
}
.dev-log-body mark { background: rgba(255,255,0,0.3); color: inherit; padding: 0 2px; border-radius: 2px; }

/* Activity header widgets */
.dev-counters { margin-left: auto; font-size: 12px; opacity: 0.8; }
.dev-status-indicator { width: 10px; height: 10px; border-radius: 50%; background: #666; margin-left: 8px; box-shadow: 0 0 0 0 rgba(77,163,255,0.7); transition: background 0.2s ease; }
.dev-status-indicator.active { background: #4da3ff; animation: devPulse 1.2s ease-out infinite; }
.dev-status-indicator.completed { background: #10b981; box-shadow: 0 0 0 4px rgba(16,185,129,0.3); animation: devPulseSuccess 0.6s ease-out 3; }
.dev-status-indicator.error { background: #ef4444; box-shadow: 0 0 0 4px rgba(239,68,68,0.3); animation: devPulseError 0.6s ease-out 3; }
@keyframes devPulse { 0%{ box-shadow: 0 0 0 0 rgba(77,163,255,0.6);} 70%{ box-shadow: 0 0 0 8px rgba(77,163,255,0);} 100%{ box-shadow: 0 0 0 0 rgba(77,163,255,0);} }
@keyframes devPulseSuccess { 0%{ box-shadow: 0 0 0 0 rgba(16,185,129,0.6);} 70%{ box-shadow: 0 0 0 8px rgba(16,185,129,0);} 100%{ box-shadow: 0 0 0 0 rgba(16,185,129,0);} }

/* Timeline view styling */
.dev-timeline-container {
	padding: 12px;
	display: flex;
	flex-direction: column;
	gap: 12px;
	position: relative;
}
.dev-timeline-empty {
	text-align: center;
	padding: 40px 20px;
	color: var(--text-secondary, #64748b);
	font-size: 0.9em;
}
.dev-timeline-empty-icon {
	font-size: 3em;
	margin-bottom: 12px;
	opacity: 0.5;
}
.dev-timeline-empty-text {
	font-weight: 600;
	margin-bottom: 6px;
	color: var(--text-primary, #1e293b);
}
.dev-timeline-empty-hint {
	font-size: 0.85em;
	opacity: 0.7;
}
.dev-timeline-item {
	display: flex;
	gap: 12px;
	padding: 12px;
	border-left: 3px solid var(--bg-tertiary, #e2e8f0);
	background: var(--bg-secondary, #f8fafc);
	border-radius: 6px;
	position: relative;
	transition: all 0.2s ease;
}
.dev-timeline-item:hover {
	background: var(--bg-tertiary, #f1f5f9);
	border-left-color: var(--accent-primary, #4da3ff);
}
.dev-timeline-item.dev-timeline-commit {
	border-left-color: #10b981;
	background: linear-gradient(135deg, rgba(16,185,129,0.05) 0%, rgba(16,185,129,0.02) 100%);
}
.dev-timeline-item.dev-timeline-session-start {
	border-left-color: #4da3ff;
	background: linear-gradient(135deg, rgba(77,163,255,0.05) 0%, rgba(77,163,255,0.02) 100%);
}
.dev-timeline-item.dev-timeline-session-end {
	border-left-color: #10b981;
}
.dev-timeline-item.dev-timeline-commit-error {
	border-left-color: #ef4444;
	background: linear-gradient(135deg, rgba(239,68,68,0.05) 0%, rgba(239,68,68,0.02) 100%);
}
.dev-timeline-item.dev-timeline-highlight {
	animation: devTimelineHighlight 2s ease-out;
}
@keyframes devTimelineHighlight {
	0% { background: rgba(77,163,255,0.2); }
	100% { background: var(--bg-secondary, #f8fafc); }
}
.dev-timeline-connector {
	position: absolute;
	left: 15px;
	top: 100%;
	width: 2px;
	height: 12px;
	background: var(--bg-tertiary, #e2e8f0);
	z-index: 0;
}
.dev-timeline-item {
	position: relative;
}
.dev-timeline-time {
	font-size: 0.75em;
	color: var(--text-secondary, #64748b);
	min-width: 90px;
	font-weight: 500;
	padding-top: 2px;
	display: flex;
	flex-direction: column;
	gap: 2px;
}
.dev-timeline-time-absolute {
	font-weight: 600;
	color: var(--text-primary, #1e293b);
}
.dev-timeline-time-relative {
	font-size: 0.85em;
	opacity: 0.7;
}
.dev-timeline-body {
	flex: 1;
	display: flex;
	align-items: flex-start;
	justify-content: space-between;
	gap: 12px;
}
.dev-timeline-icon {
	display: flex;
	align-items: center;
	justify-content: center;
	flex-shrink: 0;
	width: 20px;
	height: 20px;
	color: var(--text-primary, #1e293b);
	margin-right: 8px;
}

.dev-timeline-icon svg {
	width: 100%;
	height: 100%;
	flex-shrink: 0;
}
.dev-timeline-content {
	flex: 1;
}
.dev-timeline-title {
	font-weight: 600;
	color: var(--text-primary, #1e293b);
	margin-bottom: 4px;
	font-size: 0.9em;
}
.dev-timeline-details {
	font-size: 0.85em;
	color: var(--text-secondary, #64748b);
	margin-top: 2px;
	line-height: 1.4;
}
.dev-timeline-details code {
	background: var(--bg-tertiary, #e2e8f0);
	padding: 2px 6px;
	border-radius: 4px;
	font-size: 0.9em;
	font-family: 'Courier New', monospace;
}
.dev-commit-hash {
	transition: all 0.2s ease;
}
.dev-commit-hash:hover {
	background: var(--accent-primary, #4da3ff) !important;
	color: white !important;
	transform: scale(1.05);
}
.dev-timeline-actions {
	display: flex;
	gap: 8px;
	align-items: center;
}
.dev-timeline-rollback {
	background: var(--accent-primary, #4da3ff);
	color: white;
	border: none;
	padding: 6px 12px;
	border-radius: 6px;
	cursor: pointer;
	font-size: 0.85em;
	font-weight: 500;
	transition: all 0.2s ease;
	white-space: nowrap;
}
.dev-timeline-rollback:hover {
	background: var(--accent-primary-hover, #3b82f6);
	transform: translateY(-1px);
	box-shadow: 0 2px 4px rgba(77,163,255,0.3);
}
.dev-timeline-rollback:active {
	transform: translateY(0);
}

/* Commit info in change cards */
.dev-commit-info {
	font-size: 0.85em;
	color: var(--text-secondary, #64748b);
	margin-top: 4px;
}
.dev-commit-info code {
	background: var(--bg-tertiary, #e2e8f0);
	padding: 2px 6px;
	border-radius: 4px;
	font-size: 0.9em;
	font-family: 'Courier New', monospace;
	color: var(--text-primary, #1e293b);
}
.dev-commit-hash-link {
	transition: all 0.2s ease;
}
.dev-commit-hash-link:hover {
	background: var(--accent-primary, #4da3ff) !important;
	color: white !important;
	transform: scale(1.05);
}

/* Session markers in activity log */
.dev-log-line.session-start {
	border-left: 4px solid #4da3ff;
	background: linear-gradient(135deg, rgba(77,163,255,0.08) 0%, rgba(77,163,255,0.04) 100%);
}
.dev-log-line.session-end {
	border-left: 4px solid #10b981;
	background: linear-gradient(135deg, rgba(16,185,129,0.08) 0%, rgba(16,185,129,0.04) 100%);
}
@keyframes devPulseError { 0%{ box-shadow: 0 0 0 0 rgba(239,68,68,0.6);} 70%{ box-shadow: 0 0 0 8px rgba(239,68,68,0);} 100%{ box-shadow: 0 0 0 0 rgba(239,68,68,0);} }

/* Completion Banner */
.dev-completion-banner {
	padding: 12px 16px;
	margin-bottom: 12px;
	border-radius: 8px;
	box-shadow: 0 2px 8px rgba(0,0,0,0.1);
	animation: devFadeIn 0.3s ease-out;
	border-left: 4px solid;
}

.dev-completion-banner.success {
	background: linear-gradient(135deg, rgba(16,185,129,0.1), rgba(16,185,129,0.05));
	border-left-color: #10b981;
	color: #065f46;
}

.dev-completion-banner.error {
	background: linear-gradient(135deg, rgba(239,68,68,0.1), rgba(239,68,68,0.05));
	border-left-color: #ef4444;
	color: #991b1b;
}

.dev-completion-content {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 12px;
}

.dev-completion-text {
	font-weight: 600;
	font-size: 14px;
	flex: 1;
}

.dev-completion-dismiss {
	background: transparent;
	border: none;
	color: inherit;
	font-size: 20px;
	line-height: 1;
	cursor: pointer;
	padding: 0;
	width: 24px;
	height: 24px;
	display: flex;
	align-items: center;
	justify-content: center;
	border-radius: 4px;
	opacity: 0.7;
	transition: opacity 0.2s, background 0.2s;
}

.dev-completion-dismiss:hover {
	opacity: 1;
	background: rgba(0,0,0,0.1);
}

[data-theme="dark"] .dev-completion-banner.success {
	background: linear-gradient(135deg, rgba(16,185,129,0.2), rgba(16,185,129,0.1));
	color: #6ee7b7;
}

[data-theme="dark"] .dev-completion-banner.error {
	background: linear-gradient(135deg, rgba(239,68,68,0.2), rgba(239,68,68,0.1));
	color: #fca5a5;
}

[data-theme="dark"] .dev-completion-dismiss:hover {
	background: rgba(255,255,255,0.1);
}

@keyframes devFadeIn {
	from { opacity: 0; transform: translateY(-10px); }
	to { opacity: 1; transform: translateY(0); }
}

@keyframes devFadeOut {
	from { opacity: 1; transform: translateY(0); }
	to { opacity: 0; transform: translateY(-10px); }
}

/* Truncation controls and copy button */
.dev-log-line { position: relative; padding-right: 120px; max-width: 100%; box-sizing: border-box; }
.dev-log-line.collapsed .dev-log-body { display: -webkit-box; -webkit-line-clamp: 8; line-clamp: 8; -webkit-box-orient: vertical; overflow: hidden; position: relative; }
.dev-log-body { max-width: 100%; overflow-wrap: break-word; word-wrap: break-word; }
.dev-more-toggle { 
	position: absolute; 
	right: 8px; 
	top: 8px; 
	font-size: 10px; 
	padding: 4px 8px; 
	border: 1px solid rgba(0, 0, 0, 0.1); 
	background: rgba(255, 255, 255, 0.9); 
	color: var(--text-primary, #1e293b); 
	border-radius: 6px; 
	cursor: pointer;
	transition: all 0.2s ease;
	backdrop-filter: blur(10px);
	box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}
.dev-more-toggle:hover { 
	background: rgba(255, 255, 255, 1); 
	transform: translateY(-1px);
	box-shadow: 0 3px 6px rgba(0, 0, 0, 0.15);
}
.dev-copy-line { 
	position: absolute; 
	right: 70px; 
	top: 8px; 
	font-size: 10px; 
	padding: 4px 8px; 
	border: 1px solid rgba(0, 0, 0, 0.1); 
	background: rgba(255, 255, 255, 0.9); 
	color: var(--text-primary, #1e293b); 
	border-radius: 6px; 
	cursor: pointer;
	transition: all 0.2s ease;
	backdrop-filter: blur(10px);
	box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}
.dev-copy-line:hover { 
	background: rgba(255, 255, 255, 1); 
	transform: translateY(-1px);
	box-shadow: 0 3px 6px rgba(0, 0, 0, 0.15);
}
[data-theme="dark"] .dev-more-toggle,
[data-theme="dark"] .dev-copy-line {
	background: rgba(30, 41, 59, 0.9);
	border-color: rgba(255, 255, 255, 0.2);
	color: #f1f5f9;
	box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}
[data-theme="dark"] .dev-more-toggle:hover,
[data-theme="dark"] .dev-copy-line:hover {
	background: rgba(51, 65, 85, 0.95);
	box-shadow: 0 3px 6px rgba(0, 0, 0, 0.4);
}

/* Diff line coloring for theme-aware readability */
.dev-diff { background: var(--bg-tertiary, #f1f5f9); border-radius: 6px; padding: 8px; }
.language-diff .diff-meta { color: var(--text-secondary, #64748b); }
.language-diff .diff-hunk { color: var(--warning-color, #f59e0b); }
.language-diff .diff-add { display: block; background: rgba(16, 185, 129, 0.15); color: var(--success-color, #10b981); }
.language-diff .diff-del { display: block; background: rgba(239, 68, 68, 0.15); color: var(--danger-color, #ef4444); }
.language-diff .diff-ctx { display: block; color: var(--text-primary, #1e293b); }

/* Dark mode diff styles */
[data-theme="dark"] .dev-diff { background: rgba(0,0,0,0.3); border-radius: 6px; padding: 8px; }
[data-theme="dark"] .language-diff .diff-meta { color: #a8b3cf; }
[data-theme="dark"] .language-diff .diff-hunk { color: #ffd580; }
[data-theme="dark"] .language-diff .diff-add { display: block; background: rgba(46, 160, 67, 0.18); color: #b7f7c0; }
[data-theme="dark"] .language-diff .diff-del { display: block; background: rgba(190, 60, 60, 0.22); color: #ffb8b8; }
[data-theme="dark"] .language-diff .diff-ctx { display: block; color: #c9d1d9; }

/* Header action wrapping on narrow widths */
.chat-header .header-actions { display: flex; flex-wrap: wrap; gap: var(--spacing-xs); }
.chat-header .header-actions > * { flex: 0 0 auto; }

/* Mode buttons wrap nicely on mobile */
.mode-buttons-compact { display: flex; flex-wrap: wrap; gap: var(--spacing-xs); }
.mode-buttons-compact .mode-toggle-btn { flex: 1 1 28px; min-height: 28px; }

@media (max-width: 600px) {
	.mode-buttons-compact { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--spacing-xs); }
	.mode-buttons-compact .mode-toggle-btn { min-height: 32px; }
	
	/* Responsive image messages for small screens */
	.message-wrapper.image-only img {
		max-width: 98%;
	}
	
	.message.bot img,
	.message.user img {
		max-height: 250px;
	}
}

/* Dev panel handle */
/* Legacy dev-panel-handle styles removed - modal uses toggle button instead */

/* Dark mode styles for activity panel */
[data-theme="dark"] .dev-panel {
	background: var(--bg-secondary, #1e293b);
	border-left-color: rgba(255, 255, 255, 0.1);
	color: var(--text-primary, #f1f5f9);
}
[data-theme="dark"] .dev-log-line {
	background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
	color: #f1f5f9;
	border: 1px solid rgba(255, 255, 255, 0.1);
	box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2), 0 2px 6px rgba(0, 0, 0, 0.15);
}
[data-theme="dark"] .dev-log-line:hover {
	background: linear-gradient(135deg, #334155 0%, #475569 100%);
	box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3), 0 3px 8px rgba(0, 0, 0, 0.2);
}
[data-theme="dark"] .dev-log-line::before {
	background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
}
[data-theme="dark"] .dev-log-line.lvl-error {
	background: linear-gradient(135deg, rgba(255, 92, 92, 0.12) 0%, rgba(239, 68, 68, 0.08) 100%);
}
[data-theme="dark"] .dev-log-line.lvl-warn {
	background: linear-gradient(135deg, rgba(255, 191, 71, 0.12) 0%, rgba(245, 158, 11, 0.08) 100%);
}
[data-theme="dark"] .dev-log-line.lvl-info {
	background: linear-gradient(135deg, rgba(77, 163, 255, 0.12) 0%, rgba(59, 130, 246, 0.08) 100%);
}

[data-theme="dark"] .dev-panel-header {
	border-bottom-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .dev-tab {
	color: var(--text-primary, #f1f5f9);
	border-color: rgba(255, 255, 255, 0.15);
}

[data-theme="dark"] .dev-tab.active {
	background: rgba(255, 255, 255, 0.1);
	color: var(--text-primary, #f1f5f9);
}

[data-theme="dark"] .dev-filter {
	background: var(--bg-tertiary, #334155);
	border-color: rgba(255, 255, 255, 0.15);
	color: var(--text-primary, #f1f5f9);
}

[data-theme="dark"] .dev-panel-actions button {
	background: var(--bg-tertiary, #334155);
	border-color: rgba(255, 255, 255, 0.15);
	color: var(--text-primary, #f1f5f9);
}

[data-theme="dark"] .dev-panel-actions button:hover {
	background: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .dev-log-line {
	color: var(--text-primary, #f1f5f9);
}

[data-theme="dark"] .dev-log-line.lvl-error {
	background: rgba(255, 92, 92, 0.12);
	border-left-color: #ff5c5c;
}

[data-theme="dark"] .dev-log-line.lvl-warn {
	background: rgba(255, 191, 71, 0.12);
	border-left-color: #ffbf47;
}

[data-theme="dark"] .dev-log-line.lvl-info {
	background: rgba(77, 163, 255, 0.12);
	border-left-color: #4da3ff;
}

[data-theme="dark"] .dev-change-card {
	border-color: rgba(255, 255, 255, 0.15);
}

[data-theme="dark"] .dev-change-header {
	background: rgba(255, 255, 255, 0.05);
}

[data-theme="dark"] .dev-more-toggle,
[data-theme="dark"] .dev-copy-line {
	background: var(--bg-tertiary, #334155);
	border-color: rgba(255, 255, 255, 0.15);
	color: var(--text-primary, #f1f5f9);
}

[data-theme="dark"] .dev-more-toggle:hover,
[data-theme="dark"] .dev-copy-line:hover {
	background: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .dev-actions button {
	border-color: rgba(255, 255, 255, 0.15);
	color: var(--text-primary, #f1f5f9);
}

[data-theme="dark"] .dev-actions button:hover {
	background: rgba(255, 255, 255, 0.1);
}

/* Legacy dev-panel-handle dark mode styles removed */

/* Mobile: bottom drawer - handled in consolidated media query above */

/* Developer Mode specific tweaks */
body.dev-mode .chat-input .stop-btn {
  padding: clamp(6px, 2vw, 10px);
  min-height: 44px;
  min-width: clamp(56px, 16vw, 88px);
  font-size: 0.85rem;
}
/* Responsive Design - Media queries for mobile, tablet, and desktop breakpoints */

/* Mobile First Approach */
@media (max-width: 768px) {
  .app-container {
    flex-direction: column;
    overflow: hidden;
  }
  
  .sidebar-toggle {
    position: fixed;
    top: var(--spacing-md);
    left: var(--spacing-md);
    z-index: 1002;
    display: flex !important;
    background-color: var(--bg-primary);
    border: 1px solid var(--bg-tertiary);
    box-shadow: var(--shadow-md);
    min-width: 44px;
    min-height: 44px;
  }
  
  .sidebar.collapsed .sidebar-toggle {
    position: fixed;
    top: var(--spacing-md);
    left: var(--spacing-md);
    display: flex !important;
  }
  
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: 280px;
    transform: translateX(-100%);
    z-index: 1000;
    box-shadow: var(--shadow-xl);
  }
  
  .sidebar.show {
    transform: translateX(0);
  }
  
  .sidebar.collapsed {
    transform: translateX(-100%);
    width: 0;
  }
  
  .sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 999;
    display: none;
  }
  
  .sidebar-overlay.show {
    display: block;
  }
  
  .main-content {
    width: 100%;
    margin-left: 0; /* Remove margin on mobile */
    min-height: 0;
  }
  
  .chat-header {
    padding: var(--spacing-md) var(--spacing-lg);
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    /* Keep header sticky on mobile as well */
    position: sticky;
    top: 0;
    z-index: 100;
  }
  
  .chat-title h1 {
    font-size: 1.25rem;
  }
  
  .chat-title {
    margin-left: 0;
    margin-top: 0;
    flex: 1;
  }
  
  .header-actions {
    gap: var(--spacing-xs);
    order: 2;
    margin-left: auto;
  }
  
  .theme-toggle {
    width: clamp(36px, 9vw, 40px);
    height: clamp(36px, 9vw, 40px);
    padding: var(--spacing-xs);
    /* Keep it within header actions to allow natural wrapping on mobile */
    position: static;
  }
  
  .chat-actions {
    width: 100%;
    justify-content: flex-end;
  }
  
  .chat-messages {
    padding: var(--spacing-md) var(--spacing-lg);
    min-height: 0;
  }
  
  .message {
    max-width: 85%;
  }
  
  .chat-input-container {
    padding: var(--spacing-md) var(--spacing-lg);
  }
  
  .chat-input { display: grid; gap: var(--spacing-sm); }
  
  /* Voice controls on their own row */
  .voice-controls {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(44px, 1fr));
    gap: var(--spacing-xs);
    width: 100%;
  }
  
  /* Input row wrapper - input and send button side by side */
  .input-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto; /* Input grows, button stays */
    gap: var(--spacing-sm);
    align-items: center;
    width: 100%;
    min-width: 0;
  }
  
  .input-row input {
    flex: 1;
    min-width: 0;
  }
  
  .input-row .send-btn {
    min-width: clamp(44px, 12vw, 56px);
    min-height: 44px;
  }
  
  .modal-content {
    width: 95%;
    margin: var(--spacing-md);
  }
  
  .modal-header,
  .modal-body,
  .modal-footer {
    padding: var(--spacing-md);
  }
  
  .prompt-actions {
    flex-direction: column;
  }
  
  .btn {
    justify-content: center;
  }
  
  .welcome-content {
    padding: var(--spacing-lg);
  }
  
  .welcome-icon {
    font-size: 3rem;
  }
  
  .welcome-content h2 {
    font-size: 1.25rem;
  }
  /* Edge toggle to open sidebar when main toggle is off-canvas */
  .sidebar-edge-toggle {
    position: fixed;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
    z-index: 1003;
    width: clamp(18px, 5vw, 24px);
    height: 96px;
    background: linear-gradient(90deg, var(--bg-secondary), rgba(0,0,0,0));
    border: none;
    padding: 0;
    cursor: pointer;
    border-top-right-radius: 12px;
    border-bottom-right-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
  }

  .sidebar-edge-toggle:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
  }

  /* Chevron indicator */
  .sidebar-edge-toggle::before {
    content: '';
    display: block;
    width: 0;
    height: 0;
    border-top: 8px solid transparent;
    border-bottom: 8px solid transparent;
    border-left: 8px solid var(--text-secondary);
    margin: 0 auto;
    position: relative;
    top: calc(50% - 8px);
  }

  /* Hide edge toggle when sidebar is open */
  .sidebar.show ~ .sidebar-edge-toggle {
    display: none;
  }

  /* Hamburger behavior on mobile */
  .sidebar.collapsed .sidebar-toggle {
    display: none; /* edge toggle becomes the opener on mobile */
  }

  .sidebar.show .sidebar-toggle {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    left: auto;
    z-index: 1004; /* above sidebar content */
    display: inline-flex;
  }

}

/* Tablet Styles */
@media (min-width: 769px) and (max-width: 1024px) {
  .sidebar {
    width: 280px;
  }
  
  .chat-header {
    padding: var(--spacing-lg) var(--spacing-xl);
  }
  
  .chat-messages {
    padding: var(--spacing-lg) var(--spacing-xl);
  }
  
  .chat-input-container {
    padding: var(--spacing-lg) var(--spacing-xl);
  }
  
  .message {
    max-width: 75%;
  }
}

/* Desktop Styles */
@media (min-width: 1025px) {
  .sidebar {
    width: 320px;
  }
  
  .chat-header {
    padding: var(--spacing-lg) var(--spacing-xl);
  }
  
  .chat-messages {
    padding: var(--spacing-lg) var(--spacing-xl);
  }
  
  .chat-input-container {
    padding: var(--spacing-lg) var(--spacing-xl);
  }
  
  .message {
    max-width: 70%;
  }
}

/* Large Desktop Styles */
@media (min-width: 1440px) {
  .sidebar {
    width: 360px;
  }
  
  .chat-header {
    padding: var(--spacing-xl) var(--spacing-2xl);
  }
  
  .chat-messages {
    padding: var(--spacing-xl) var(--spacing-2xl);
  }
  
  .chat-input-container {
    padding: var(--spacing-xl) var(--spacing-2xl);
  }
  
  .message {
    max-width: 65%;
  }
}

/* Print Styles */
@media print {
  .sidebar,
  .chat-header,
  .chat-input-container,
  .response-buttons,
  .modal {
    display: none !important;
  }
  
  .main-content {
    width: 100% !important;
  }
  
  .chat-messages {
    padding: 0 !important;
  }
  
  .message {
    max-width: 100% !important;
    break-inside: avoid;
    margin-bottom: var(--spacing-md) !important;
  }
  
  .message.user {
    background-color: #f0f0f0 !important;
    color: #000 !important;
  }
  
  .message.bot {
    background-color: #ffffff !important;
    color: #000 !important;
    border: 1px solid #ddd !important;
  }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
  :root {
    --bg-primary: #ffffff;
    --bg-secondary: #f0f0f0;
    --bg-tertiary: #e0e0e0;
    --text-primary: #000000;
    --text-secondary: #333333;
    --text-muted: #666666;
    --primary-color: #0000ff;
    --primary-hover: #0000cc;
  }
  
  .message.user {
    background-color: #0000ff;
    color: #ffffff;
  }
  
  .message.bot {
    background-color: #ffffff;
    color: #000000;
    border: 2px solid #000000;
  }
  
  .btn-primary {
    background-color: #0000ff;
    color: #ffffff;
    border: 2px solid #000000;
  }
  
  .btn-secondary {
    background-color: #ffffff;
    color: #000000;
    border: 2px solid #000000;
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  
  .typing span {
    animation: none !important;
  }
  
  .loading-spinner {
    animation: none !important;
  }
  
  .loading-dots span {
    animation: none !important;
  }
  
  .status-dot.connecting {
    animation: none !important;
  }
}

/* Focus Styles for Keyboard Navigation */
@media (prefers-reduced-motion: no-preference) {
  .btn:focus-visible,
  .chat-input input:focus-visible,
  .prompt-select:focus-visible,
  .modal-close:focus-visible,
  .sidebar-toggle:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
  }
}

/* Touch Device Optimizations */
@media (hover: none) and (pointer: coarse) {
  .btn {
    min-height: 44px;
    min-width: 44px;
  }
  
  .chat-input input {
    min-height: 44px;
  }
  
  .send-btn {
    min-height: 44px;
    min-width: 44px;
  }
  
  .sidebar-toggle {
    min-height: 44px;
    min-width: 44px;
  }
  
  .modal-close {
    min-height: 44px;
    min-width: 44px;
  }
  
  /* Make copy buttons visible on touch devices (no hover) */
  .copy-button {
    opacity: 1;
  }

  .response-buttons button {
    min-height: 36px;
    padding: var(--spacing-sm) var(--spacing-md);
  }
  
  .conversation-list a {
    min-height: 44px;
    display: flex;
    align-items: center;
  }
}

/* Landscape Orientation */
@media (orientation: landscape) and (max-height: 500px) {
  .chat-header {
    padding: var(--spacing-sm) var(--spacing-lg);
  }
  
  .chat-title h1 {
    font-size: 1.125rem;
  }
  
  .chat-messages {
    padding: var(--spacing-sm) var(--spacing-lg);
  }
  
  .chat-input-container {
    padding: var(--spacing-sm) var(--spacing-lg);
  }
  
  .welcome-message {
    min-height: 200px;
  }
  
  .welcome-icon {
    font-size: 2rem;
  }
  
  .welcome-content h2 {
    font-size: 1.125rem;
  }
}

/* Dark Mode Specific Responsive Adjustments */
@media (prefers-color-scheme: dark) {
  @media (max-width: 768px) {
    .sidebar-overlay {
      background-color: rgba(0, 0, 0, 0.7);
    }
  }
}

/* Container Queries (Future-proofing) */
@supports (container-type: inline-size) {
  .chat-container {
    container-type: inline-size;
  }
  
  @container (max-width: 768px) {
    .message {
      max-width: 85%;
    }
  }
  
  @container (min-width: 1024px) {
    .message {
      max-width: 70%;
    }
  }
}

/* Accessibility Improvements */
@media (prefers-reduced-transparency: reduce) {
  .modal {
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: none;
  }
  
  .sidebar-overlay {
    background-color: rgba(0, 0, 0, 0.8);
  }
}

/* High DPI Displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .logo-icon,
  .chat-icon,
  .welcome-icon {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
  }
}

/* Specific Device Adjustments */
/* iPhone SE and similar small screens */
@media (max-width: 375px) {
  .sidebar {
    width: 100%;
  }
  
  .chat-header {
    padding: var(--spacing-sm) var(--spacing-md);
  }
  
  .chat-messages {
    padding: var(--spacing-sm) var(--spacing-md);
  }
  
  .chat-input-container {
    padding: var(--spacing-sm) var(--spacing-md);
  }
  
  .message {
    max-width: 90%;
    font-size: 0.875rem;
  }
  
  .welcome-content {
    padding: var(--spacing-md);
  }
  
  .welcome-icon {
    font-size: 2.5rem;
  }
  
  .welcome-content h2 {
    font-size: 1.125rem;
  }
  
  .welcome-content p {
    font-size: 0.875rem;
  }
}

/* iPad and similar tablets */
@media (min-width: 768px) and (max-width: 1024px) and (orientation: portrait) {
  .sidebar {
    width: 300px;
  }
  
  .chat-header {
    padding: var(--spacing-lg) var(--spacing-xl);
  }
  
  .chat-messages {
    padding: var(--spacing-lg) var(--spacing-xl);
  }
  
  .chat-input-container {
    padding: var(--spacing-lg) var(--spacing-xl);
  }
  
  .message {
    max-width: 80%;
  }
}

/* iPad and similar tablets in landscape */
@media (min-width: 1024px) and (max-width: 1366px) and (orientation: landscape) {
  .sidebar {
    width: 300px;
  }
  
  .chat-header {
    padding: var(--spacing-md) var(--spacing-lg);
  }
  
  .chat-messages {
    padding: var(--spacing-md) var(--spacing-lg);
  }
  
  .chat-input-container {
    padding: var(--spacing-md) var(--spacing-lg);
  }
  
  .message {
    max-width: 75%;
  }
  
  /* Responsive image messages */
  .message-wrapper.image-only img {
    max-width: 95%;
    width: auto;
    height: auto;
  }
  
  .message.bot img,
  .message.user img {
    max-width: 100%;
    max-height: 300px;
  }
  
  .message.bot .image-container,
  .message.user .image-container {
    max-width: 100%;
  }
  
  .delete-conversation-btn {
    opacity: 1; /* Always visible on mobile */
  }
}