body {
      margin: 0;
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      background: #f7f7f7;
      color: #333;
    }

    header, footer {
      text-align: center;
      padding: 1rem;
      background: linear-gradient(to right, #c8b3ee, #b9d8c2);
      color: #333;
    }

    main.grid-container {
      display: grid;
      grid-template-columns: repeat auto-fit, minmax(300px, 1fr);
      gap: 2rem;
      padding: 2rem;
    }

    section.transform-box {
      background: rgba(255, 255, 255, 0.15);
      backdrop-filter: blur(10px);
      border-radius: 1rem;
      padding: 1.5rem;
      box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
      border: 1px solid rgba(255, 255, 255, 0.3);
    }

    .flip-inner {
      position: relative;
      width: 200px;
      height: 200px;
      transform-style: preserve-3d;
      transition: transform 0.8s ease-in-out;
      margin: 1rem auto;
    }

    .flip-card:hover .flip-inner {
      transform: rotateY(180deg);
    }

    .flip-front,
    .flip-back {
      position: absolute;
      width: 100%;
      height: 100%;
      backface-visibility: hidden;
      display: flex;
      justify-content: center;
      align-items: center;
      font-size: 1.2rem;
      color: #333;
      border-radius: 12px;
    }

    .flip-front {
      background-color: #c8b3ee;
    }

    .flip-back {
      background-color: #b9d8c2;
      transform: rotateY(180deg);
		display: flex;
		flex-direction: column;
		justify-content: center;
		align-items: center;
    }
    .rotate3d-box {
      width: 200px;
      height: 200px;
      background-color: #c8b3ee;
      border-radius: 12px;
      display: flex;
      justify-content: center;
      align-items: center;
      color: black;
      font-size: 1.2rem;
      transition: transform 1s ease-in-out;
      margin: 1rem auto;
    }

    .rotate3d-box:hover {
      transform: rotate3d(1, 1, 0, 180deg);
    }

    .desc {
      text-align: center;
      font-size: 0.95rem;
    }