:root{--bg-primary:#000000;--bg-secondary:#111111;--bg-tertiary:#1a1a1a;--text-primary:#ffffff;--text-secondary:#a3a3a3;--text-accent:#06b6d4;--border-primary:#404040;--border-secondary:#262626;--accent-primary:#06b6d4;--accent-secondary:#8b5cf6;--success:#10b981;--warning:#f59e0b;--error:#ef4444}[data-theme=light]{--bg-primary:#fefefe;--bg-secondary:#f9fafb;--bg-tertiary:#f3f4f6;--text-primary:#374151;--text-secondary:#6b7280;--text-accent:#059669;--border-primary:#e5e7eb;--border-secondary:#d1d5db;--accent-primary:#059669;--accent-secondary:#7c3aed;--success:#10b981;--warning:#f59e0b;--error:#ef4444}.theme-transition{transition:background-color .3s ease,color .3s ease,border-color .3s ease}.bg-gradient-dark{background:radial-gradient(circle at center,rgba(17,17,17,.8),rgba(0,0,0,.6))}.bg-gradient-light{background:linear-gradient(135deg,rgba(249,250,251,.95),rgba(243,244,246,.9) 50%,rgba(229,231,235,.85))}