:root{--bg-page: #FAFAF8;--bg-surface: #FFFFFF;--bg-input: #F5F1EA;--bg-hover: #F0EBE0;--border: #EAE6DE;--border-strong: #DDD8CC;--primary: #C6570F;--primary-hover: #A8470C;--primary-tint: #FEF0D8;--primary-border: #F4C06C;--primary-label: #7A3B0A;--user-bubble-bg: var(--bg-surface);--user-bubble-text: var(--text-primary);--text-primary: #1A1208;--text-secondary: #5C4A36;--text-muted: #8C7A66;--text-hint: #A89880;--text-placeholder: #A89880;--success: #10B981;--error: #EF4444;--warning: #F59E0B;--shadow-sm: 0 1px 3px rgba(0,0,0,.06);--shadow-md: 0 4px 12px rgba(0,0,0,.08);--font-body: "Inter", system-ui, -apple-system, sans-serif;--font-brand: "Baloo 2", Georgia, serif;--font-code: "JetBrains Mono", "SF Mono", monospace;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 20px;--space-6: 24px;--radius-sm: 5px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-avatar: 9px;--radius-full: 9999px;--topbar-height: 54px;--chat-max-width: 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