:root{--brand-color: #2563eb;--brand-hover: #1d4ed8;--bg-primary: #ffffff;--bg-secondary: #f8fafc;--text-primary: #0f172a;--text-secondary: #64748b;--border: #e2e8f0;--success: #22c55e;--error: #ef4444;--warning: #f59e0b;--radius: 8px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;color:var(--text-primary);background:var(--bg-secondary);line-height:1.6}a{color:var(--brand-color);text-decoration:none}button{cursor:pointer;border:none;border-radius:var(--radius);font-size:14px;padding:10px 20px;transition:background-color .2s}.btn-primary{background:var(--brand-color);color:#fff}.btn-primary:hover{background:var(--brand-hover)}.btn-secondary{background:#fff;color:var(--text-primary);border:1px solid var(--border)}.btn-secondary:hover{background:var(--bg-secondary)}.card{background:var(--bg-primary);border-radius:var(--radius);border:1px solid var(--border);padding:24px}.container{max-width:1200px;margin:0 auto;padding:0 24px}input,select,textarea{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius);font-size:14px;outline:none;transition:border-color .2s}input:focus,select:focus,textarea:focus{border-color:var(--brand-color)}.badge{display:inline-block;padding:2px 8px;border-radius:12px;font-size:12px;font-weight:500}.badge-success{background:#dcfce7;color:#166534}.badge-warning{background:#fef3c7;color:#92400e}.badge-error{background:#fee2e2;color:#991b1b}.badge-info{background:#dbeafe;color:#1e40af}