:root{--primary:#e10600;--primary-hover:#c00500;--background:#fff;--surface:#f2f2f2;--surface-hover:#e8e8e8;--border:#e5e5e5;--header-bg:#1a1a1c;--header-text:#fff;--header-hover:hsla(0,0%,100%,.15);--text-primary:#000;--text-secondary:#333;--text-muted:#666;--on-primary:#fff;--success:#16a34a;--warning:#f59e0b;--error:#dc2626;--info:#2563eb;--shadow-sm:0 1px 3px rgba(0,0,0,.08);--shadow-md:0 4px 12px rgba(0,0,0,.1);--shadow-lg:0 8px 24px rgba(0,0,0,.12);--transition-fast:0.15s ease;--transition-normal:0.2s ease;--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--radius-full:9999px}[data-theme=dark]{--primary:#e10600;--primary-hover:#ff2a23;--background:#0f0f10;--surface:#1a1a1c;--surface-hover:#242428;--border:#2a2a2e;--header-bg:#0a0a0b;--header-text:#fff;--header-hover:hsla(0,0%,100%,.1);--text-primary:#fff;--text-secondary:#d1d1d1;--text-muted:#a1a1aa;--on-primary:#fff;--success:#22c55e;--warning:#fbbf24;--error:#ef4444;--info:#3b82f6;--shadow-sm:0 1px 3px rgba(0,0,0,.3);--shadow-md:0 4px 12px rgba(0,0,0,.4);--shadow-lg:0 8px 24px rgba(0,0,0,.5)}*{box-sizing:border-box;margin:0;padding:0}body,html{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;background:var(--background);color:var(--text-primary);line-height:1.5;min-height:100vh;transition:background-color var(--transition-normal),color var(--transition-normal)}a{color:inherit;text-decoration:none}button{font-family:inherit}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--text-muted);border-radius:var(--radius-sm);opacity:.5}::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}input,select,textarea{font-family:inherit}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideIn{0%{transform:translateY(-10px);opacity:0}to{transform:translateY(0);opacity:1}}@keyframes spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}.btn-primary{background:var(--primary);color:var(--on-primary);border:none;padding:10px 20px;border-radius:var(--radius-md);font-weight:600;cursor:pointer;transition:background-color var(--transition-fast)}.btn-primary:hover:not(:disabled){background:var(--primary-hover)}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.surface{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md)}