:root{--bg: #fafafb;--bg-gradient: linear-gradient(135deg, #f8fafc 0%, #f5f3ff 50%, #fef6f4 100%);--surface: rgba(255, 255, 255, .7);--surface-solid: #ffffff;--surface-2: #fafafa;--surface-3: #f4f4f6;--border: rgba(15, 23, 42, .06);--border-strong: rgba(15, 23, 42, .1);--border-dashed: rgba(15, 23, 42, .15);--text-0: #0a0a0f;--text-1: #1e293b;--text-2: #64748b;--text-3: #94a3b8;--accent: #6366f1;--accent-hover: #4f46e5;--accent-soft: #eef2ff;--success: #10b981;--warning: #f59e0b;--danger: #ef4444;--tab-color: #6366f1;--tab-soft: #eef2ff;--shadow-sm: 0 1px 2px rgba(15, 23, 42, .04);--shadow-md: 0 1px 3px rgba(15, 23, 42, .06), 0 4px 12px rgba(15, 23, 42, .04);--shadow-lg: 0 4px 6px rgba(15, 23, 42, .05), 0 12px 32px rgba(15, 23, 42, .08);--shadow-xl: 0 8px 12px rgba(15, 23, 42, .06), 0 20px 48px rgba(15, 23, 42, .12);--r-sm: 8px;--r-md: 12px;--r-lg: 18px;--r-xl: 24px;--r-pill: 999px;--theme-transition: background-color .3s ease, color .3s ease, border-color .3s ease, box-shadow .3s 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