.stack-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr); /* 3 cards per row on desktop */
    gap: 20px; /* Space between cards */
    max-width: 1200px;
  
    padding: 20px;
}      
  .stack-container1 {
    display: grid;
    grid-template-columns: repeat(4, 1fr); /* 3 cards per row on desktop */
    gap: 20px; /* Space between cards */
    max-width: 1200px;
  
    padding: 20px;
}

.card-wrapper {
    perspective: 1200px;
    width: 100%;
    height: 500px;
}

/* Flip effect remains same */
.flipper {
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
    transition: transform 0.9s cubic-bezier(0.68, -0.55, 0.27, 1.55);
}

.card-wrapper:hover .flipper {
    transform: rotateY(180deg);
}
.mytop{}

/* Responsive for tablets */
@media (max-width: 992px) {
    .stack-container {
        grid-template-columns: repeat(2, 1fr);
    }
    .stack-container1 {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Responsive for mobile */
@media (max-width: 600px) {
    .stack-container {
        grid-template-columns: 1fr;
         margin-top: -600px;
    }
     .stack-container1 {
        grid-template-columns: 1fr;
         margin-top: -300px;
    }
    .mytop{
        margin-top: -300px;
    }
}


        /* Card positions to match your screenshot */
        .card-wrapper:nth-child(1) {
            left: 50px;
            top: 80px;
         
            z-index: 1;
        }

        .card-wrapper:nth-child(2) {
            left: 250px;
            top: 30px;
         
            z-index: 3;
        }

        .card-wrapper:nth-child(3) {
            left: 450px;
            top: 10px;
          
            z-index: 4;
        }

        .card-wrapper:nth-child(4) {
            left: 650px;
            top: 40px;
         
            z-index: 2;
        }

        /* Hover effect: lift, straighten, and flip */
        .card-wrapper:hover {
            transform: translateY(-50px) rotate(0deg) !important;
            z-index: 20;
            box-shadow: 0 30px 60px rgba(0,0,0,0.6);
        }

        .flipper {
            position: relative;
            width: 100%;
            height: 100%;
            transform-style: preserve-3d;
            transition: transform 0.9s cubic-bezier(0.68, -0.55, 0.27, 1.55);
        }

        .card-wrapper:hover .flipper {
            transform: rotateY(180deg);
        }

        .card-front, .card-back {
            position: absolute;
            width: 100%;
            height: 100%;
            backface-visibility: hidden;
            border-radius: 30px;
            box-shadow: 0 8px 30px rgba(0,0,0,0.4);
            overflow: hidden;
        }

        .card-front {
            background: #fff;
            
        }

        .card-back {
            transform: rotateY(180deg);
            background: #000;
        }

        .top-img {
            width: 100%;
            height: 35%;
            object-fit: cover;
            border-top-left-radius: 30px;
            border-top-right-radius: 30px;
        }

        .avatar-container {
            position: relative;
            width: 150px;
            height: 150px;
            margin: -85px auto 0;
            border: 10px solid #fff;
            border-radius: 50%;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.3);
        }

        .avatar-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 50%;
        }

        .title {
            text-align: center;
            color: #333;
            font-weight: 300;
            margin: 20px 0 0;
            font-size: 30px;
        }

        .subtitle {
            text-align: center;
            color: #777;
            margin: 10px 0 0;
            font-size: 18px;
        }

        .bio-container {
            margin-top: 30px;
            padding: 0 25px;
            text-align: center;
        }

        .bio {
            color: #555;
            font-size: 15px;
            line-height: 1.6;
        }

        .icons-container {
            text-align: center;
            margin-top: 25px;
        }

        .icon {
            margin: 0 15px;
            color: #5C6BC0;
            font-size: 30px;
            transition: transform 0.3s;
        }

        .icon:hover {
            transform: scale(1.3);
        }

        .back-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 30px;
        }

        .made-by {
            position: absolute;
            bottom: 25px;
            width: 100%;
            text-align: center;
            color: #fff;
            font-size: 14px;
            opacity: 0.8;
            text-shadow: 0 1px 5px rgba(0,0,0,0.8);
        }

.card-front .button1 {
    position: absolute;
    bottom: 25px;
    left: 1%;
    
     padding: 10px 20px;
    background: #25D366;
    color: #fff;
    border: none;
    border-radius: 25px;
    font-size: 16px;
    cursor: pointer;
}
.card-front .button2 {
    position: absolute;
    bottom: 25px;
    right:1%;
   
    padding: 10px 20px;
    background: yellow;
    color: #fff;
    border: none;
    border-radius: 25px;
    font-size: 16px;
    cursor: pointer;
}
.card-back .button2 {
    position: absolute;
    bottom: 25px;
    right:1%;
   
    padding: 10px 20px;
    background: yellow;
    color: #fff;
    border: none;
    border-radius: 25px;
    font-size: 16px;
    cursor: pointer;
}
.card-back .button1 {
   position: absolute;
    bottom: 25px;
    left: 1%;
    
     padding: 10px 20px;
    background: #25D366;
    color: #fff;
    border: none;
    border-radius: 25px;
    font-size: 16px;
    cursor: pointer;
}
.topme{
      position: absolute;
      top: 0px;
}
        /* Responsive */
        @media (max-width: 1100px) {
            .stack-container {
                transform: scale(0.85);
            }
              .stack-container1 {
                transform: scale(0.85);
            }
        }

        @media (max-width: 900px) {
            .stack-container {
                transform: scale(0.7);
            }
              .stack-container1 {
                transform: scale(0.7);
            }
            .header {
                font-size: 2.2em;
            }
        }