.card-slider {
    position: relative;
    width: 95%;
    max-width: 2000px;
    overflow: hidden;
    margin: 40px auto;
  }

  .card-slider .slides {
    display: flex;
    width: max-content;
    animation: scroll 90s linear infinite; /* 🔄 roller by default */
  }

  .card-slider .slide {
    flex: 0 0 200px; /* card width */
    margin: 0 10px;
  }

  .card-slider .slide a {
    display: block;
    height: 170px;
    border-radius: 12px;
    background-size: cover;
    background-position: center;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  }

  /* Roller animation */
  @keyframes scroll {
    0%   { transform: translateX(0); }
    100% { transform: translateX(-50%); }
  }

  /* Arrows (hidden on desktop) */
  .arrow {
    display: none; /* default hidden */
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0,0,0,0.5);
    color: #fff;
    border: none;
    padding: 10px 14px;
    border-radius: 50%;
    cursor: pointer;
    z-index: 10;
    font-size: 18px;
  }
  .arrow.left { left: 10px; }
  .arrow.right { right: 10px; }

  /* Mobile view (≤600px) */
  @media (max-width: 600px) {
    .card-slider .slides {
      animation: none; /* stop roller */
      transition: transform 0.5s ease-in-out;
    }
    .slide {
      flex: 0 0 100%; /* show 1 card at a time */
    }
    .arrow {
      display: block; /* show arrows only on mobile */
    }

    /* .card-slider {
        width: 80%;
      } */
  }