.btn{display:inline-flex;align-items:center;justify-content:center;gap:.35rem;padding:.5rem 1rem;min-height:40px;border-radius:8px;font-size:.95rem;font-weight:500;cursor:pointer;border:1px solid #cbd5e1;background:#f1f5f9;color:#334155;text-decoration:none;transition:background .2s,border-color .2s,box-shadow .2s}.btn:hover{background:#e2e8f0;border-color:#94a3b8}.btn:active{transform:translateY(1px)}.btn:disabled{opacity:.6;cursor:not-allowed;transform:none}.btn-primary{background:#1976d2;color:#fff;border-color:#1565c0}.btn-primary:hover{background:#1565c0;border-color:#0d47a1}.btn-primary:disabled:hover{background:#1976d2}.btn-secondary{background:#fff;color:#475569;border-color:#94a3b8}.btn-secondary:hover{background:#f8fafc;border-color:#64748b}.btn-success{background:#2e7d32;color:#fff;border-color:#1b5e20}.btn-success:hover{background:#1b5e20;border-color:#0d3d12}.btn-sm{padding:.35rem .75rem;min-height:34px;font-size:.9rem}a.btn{text-decoration:none}