body {
      font-family: 'Prompt', sans-serif;
      background-color: #f8f9fa;
      color: #5A5644;
    }
    .card-img-top {
      width: 100%;
      height: 180px;
      object-fit: cover;
      border-top-left-radius: 1rem;
      border-top-right-radius: 1rem;
    }
    #backToTopBtn {
      display: none;
      position: fixed;
      bottom: 30px;
      right: 20px;
      z-index: 999;
      padding: 12px 20px;
      font-size: 16px;
      font-weight: 600;
      color: #fff;
      background: linear-gradient(135deg, #6b4f4f, #a7856a);
      border: none;
      border-radius: 6px;
      box-shadow: 0 4px 15px rgba(107,79,79,0.4);
      cursor: pointer;
      transition: all 0.3s ease;
    }
    #backToTopBtn:hover {
      background: linear-gradient(135deg, #a7856a, #6b4f4f);
      box-shadow: 0 6px 20px rgba(167,133,106,0.7);
      transform: translateY(-3px);
    }
    .nav-pills .nav-link.active, .nav-pills .show>.nav-link { color:#fff !important;}
    footer {
      font-size: 13px;
    }

	  .btn-reset {
    background-color: transparent;
    border: none;
    color: #333;
    font-size: 1.2rem;
    padding: 0 0.5rem;
    cursor: pointer;
  }
  .btn-reset:hover {
    color: red;
  }

  .sidebar {
  width: 220px;
  transition: width 0.3s;
  height: 100vh;
  position: fixed;
  top: 56px; /* height of navbar */
  left: 0;
  overflow-x: hidden;
  border-right: 1px solid #ddd;
  z-index: 1030;
}

.sidebar .nav-link {
  display: flex;
  align-items: center;
  white-space: nowrap;
  padding: 0.75rem 1rem;
}

.sidebar .sidebar-text {
  display: inline-block;
}

body.sidebar-collapse .sidebar {
  width: 60px;
}

body.sidebar-collapse .sidebar .sidebar-text {
  display: none;
}

.content {
  margin-left: 220px;
  padding: 1rem;
  transition: margin-left 0.3s;
  width: 100%;
}

body.sidebar-collapse .content {
  margin-left: 60px;
}

  /* กำหนด row-cols สำหรับจอ 2K/4K */
  @media (min-width: 2560px) {
    .row-cols-2k-8 > * {
      flex: 0 0 auto;
      width: 12.5%; /* 100 / 8 = 8 คอลัมน์ */
    }
  }