:root{--bg-gradient:radial-gradient(ellipse 90% 50% at 50% 0%, #0b1928 0%, #05080e 65%);--header-bg:#070e1acc;--card-bg:#0c1018;--card-bg-alt:#0d1624;--card-border:#0f1e30;--text-primary:#fff;--text-secondary:#c0d0e0;--text-muted:#1a3050;--tab-bg:#070d18;--tab-btn-bg:#112030;--tab-btn-text:#1a2a3a;--strip-bg:#080e18;--strip-border:#0d1828}[data-theme=light]{--bg-gradient:radial-gradient(ellipse 90% 50% at 50% 0%, #f0f7ff 0%, #f8fafc 65%);--header-bg:#fffc;--card-bg:#fff;--card-bg-alt:#f1f5f9;--card-border:#e2e8f0;--text-primary:#0f172a;--text-secondary:#475569;--text-muted:#94a3b8;--tab-bg:#f8fafc;--tab-btn-bg:#e2e8f0;--tab-btn-text:#64748b;--strip-bg:#f1f5f9;--strip-border:#e2e8f0}body{margin:0;transition:background-color .3s}