.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;box-sizing:border-box;padding:8px 16px;border-radius:8px;font-size:13px;font-family:Roboto-medium,sans-serif;letter-spacing:.2px;cursor:pointer;user-select:none;transition:background-color .2s,border-color .2s,color .2s,box-shadow .2s,transform .15s;box-shadow:0 2px 6px rgba(0,0,0,.08),0 1px 2px rgba(0,0,0,.05)}.btn:hover{transform:translateY(-1px);box-shadow:0 6px 16px rgba(0,0,0,.12),0 2px 4px rgba(0,0,0,.08)}.btn:active{transform:translateY(0)}.btn-primary{background:#2563eb;border-color:#2563eb;color:#fff}.btn-primary:hover{background:#1d4ed8;border-color:#1d4ed8}.btn-danger{background:#dc2626;border-color:#dc2626;color:#fff}.btn-danger:hover{background:#b91c1c;border-color:#b91c1c}.btn-outline-secondary{background:#fff;color:#64748b;border-color:#dbe1ea}.btn-outline-secondary:hover{background:#eff6ff;color:#2563eb;border-color:#93c5fd}.btn-icon{width:36px;height:36px;padding:0;border-radius:10px}.btn.disabled,.btn:disabled{background:#f1f5f9;color:#94a3b8;border-color:#e2e8f0;box-shadow:none;transform:none}.btn-success{background:#16a34a;border-color:#16a34a;color:#fff}.btn-success:hover{background:#15803d;border-color:#15803d;color:#fff}.btn-warning{background:#f59e0b;border-color:#f59e0b;color:#fff}.btn-warning:hover{background:#d97706;border-color:#d97706;color:#fff}.btn-info{background:#0891b2;border-color:#0891b2;color:#fff}.btn-info:hover{background:#0e7490;border-color:#0e7490;color:#fff}.btn-light{background:#f8fafc;border-color:#e2e8f0;color:#475569}.btn-light:hover{background:#f1f5f9;color:#2563eb}.btn-dark{background:#1e293b;border-color:#1e293b;color:#fff}.btn-dark:hover{background:#0f172a;border-color:#0f172a}