/* === KONSETP SAYFASI: Buton solukluk fix (global çakışma kırılır) === */
  #konseptler .filter-btn{
    opacity: 1 !important;
    filter: none !important;
    -webkit-filter: none !important;
    mix-blend-mode: normal !important;
    transform: translateZ(0);
  }

  /* Mobilde daha canlı görünüm */
  #konseptler .filter-btn{
    border-width: 1px;
    box-shadow: 0 6px 18px rgba(15, 23, 42, .06);
  }

  /* Aktif buton görseli */
  #konseptler .filter-btn.is-active{
    box-shadow: 0 10px 28px rgba(236, 72, 153, .22) !important;
  }

  /* Hover / focus (mobilde de hissedilir) */
  #konseptler .filter-btn:active{ transform: scale(.98); }
  #konseptler .filter-btn:focus{ outline: none; }
  #konseptler .filter-btn:focus-visible{
    box-shadow: 0 0 0 4px rgba(236, 72, 153, .18), 0 10px 28px rgba(15, 23, 42, .08);
  }