:root{--primary: #6366f1;--primary-light: #eef2ff;--success: #22c55e;--success-bg: #f0fdf4;--bg: #f8fafc;--card-bg: #ffffff;--text: #1e293b;--text-muted: #64748b;--border: #e2e8f0;--hover-bg: #f1f5f9}*,*:before,*:after{box-sizing:border-box}body{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border:none;border-radius:8px;font-size:.9rem;font-weight:600;cursor:pointer;transition:all .2s;font-family:inherit}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:#4f46e5}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-secondary{background:var(--card-bg);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover{background:var(--hover-bg)}.btn-icon{background:none;border:none;cursor:pointer;padding:6px;border-radius:8px;color:var(--text-muted);transition:all .2s;display:inline-flex;align-items:center;justify-content:center}.btn-icon:hover{background:var(--hover-bg);color:var(--text)}