*{box-sizing:border-box;margin:0;padding:0}:root,html.dark-theme{--bg-primary:#0a0a0a;--bg-secondary:#141414;--bg-tertiary:#1a1a1a;--bg-card:#1f1f1f;--bg-hover:#2a2a2a;--text-primary:#fff;--text-secondary:#b3b3b3;--text-tertiary:gray;--accent-primary:#ff6b00;--accent-secondary:#ff8c00;--accent-gradient:linear-gradient(135deg, #ff6b00 0%, #ff8c00 100%);--border-color:#2d2d2d;--border-light:#3d3d3d;--shadow-sm:0 2px 8px #0000004d;--shadow-md:0 4px 16px #0006;--shadow-lg:0 8px 32px #00000080;--shadow-xl:0 16px 64px #0009;--shadow-glow:0 0 30px #ff6b004d;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-xl:24px;--font-sans:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, 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