body, html {
    margin: 0;
    padding: 0;
    block-size: 100%;
    overflow: auto;
    mix-blend-mode: normal;
    background: linear-gradient(#000000, #0f0546, #000000);
}
main {
    background-color: rgb(0, 0, 0); 
}
nav {
    inline-size: 250px;
    block-size: 100vh;
    background-color: #000000;
    color: #fff;
    position: fixed;
    inset-block-start: 0;
    inset-inline-start: -250px;
    transition: left 0.3s ease-in-out;
    mix-blend-mode: normal;
}
@keyframes slideIn {
    0% {
        opacity: 0;
        transform: translateX(20%);
    }
    100% {
        opacity: 1;
        transform: translateX(0); 
    }
}
h1 {
    color: white;
    margin: 0px;
    font-family: Helvetica;
    animation: zoomInAndFade 3s ease-in-out;
    display: flex;
    align-items: center;
    border: none;
    margin-top: 500px;
}

@keyframes zoomInAndFade {
    0% {
        transform: scale(0.8);
        opacity: 0;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}
h2 {
    color: white;
    margin: 250px 0;
    font-family: Helvetica;
    animation: slideIn 3s ease-in-out;
    padding: 1px;
    display: flex;
    align-items: center;
    opacity: 0;
    animation-delay: 1s;
    animation-fill-mode: forwards;
    line-height: 1.5;
}
h2:hover {
    color: #fdfdfd;
}
@keyframes slideIn {
    0% {
        opacity: 0;
        transform: translateX(20%);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}
@keyframes zoomOut {
    from {
        transform: scale(1);
    }
    to {
        transform: scale(0);
    }
}
@keyframes slideIn {
    0% {
        opacity: 0;
        transform: translateX(20%);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}
.logo {
    position: relative;
    color: white;
    font-size: 10px;
    font-family: monospace;
}
.logos {
    padding: 35px 35px;
    text-align: center; 
    max-inline-size: 100px;
}
.logos img {
    max-inline-size: 35px;
    block-size: auto;
    background: transparent;
    margin: 10%;
}
.navbar {
    inset-inline-start: 0;
    inset-block-start: 70px; /* Adjust the value to place it near the logos class */
    font-size: 18px;
    font-weight: bold;
    font-family: 'Open Sans', Arial, sans-serif;
    position: relative;
    left: 2%;
    top: 50%;
    margin-bottom: 0%;
    inline-size: 100%;
    background:transparent;
    color: #fff;
    top: 0; /* Position it at the top of the viewport */
    z-index: 1; /* Ensure it's below the logos */
}
nav {
    inline-size: 263px;
    block-size: 8vh;
    background-color: transparent;
    color: #fff;
    position: relative;
    inset-block-start: 0;
    inset-inline-start: -250px;
    transition: left 0.3s ease-in-out;
    mix-blend-mode: normal;
}
ul { 
    margin: 150px auto 0; 
    padding: 0; 
    list-style: none; 
    display: table;
    inline-size: 600px;
    text-align: center;
    position: relative;
  }
  li { 
    display: table-cell; 
    position: relative; 
    padding: 15px 0;
  }
  a {
    color: #ffffff;
    text-transform: uppercase;
    text-decoration: none;
    letter-spacing: 0.15em;
    
    display: inline-block;
    padding: 15px 20px;
    position: relative;
  }
  a:after {    
    background: none repeat scroll 0 0 transparent;
    inset-block-end: 0;
    content: "";
    display: block;
    block-size: 2px;
    inset-inline-start: 50%;
    position: absolute;
    background: #21fa19;
    transition: width 0.3s ease 0s, left 0.3s ease 0s;
    inline-size: 0;
  }
  a:hover:after { 
    inline-size: 100%; 
    inset-inline-start: 0; 
  }
  .content-section {
    block-size: 100vh;
    background: transparent;
    color: #fff;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    margin: -20px;
}
  @media screen and (max-inline-size: 600px) {
      ul {
          margin-block-start: 40px;
          inline-size: auto;
      }
}
.card-container {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-block-end: 30px;
}

.card {
    inline-size: 100px;
    block-size: 260px; /* Adjust block size for better spacing */
    perspective: 1000px;
    padding: 15px;
    display: flex;
    flex-direction: column; /* Stack child elements vertically */
    align-items: center;
}

.card-inner {
    inline-size: 100%;
    block-size: 100%;
    position: relative;
    transform-style: preserve-3d;
    transition: transform 0.999s;
}

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

.card-front,
.card-back {
    position: absolute;
    inline-size: 100%;
    block-size: 100%;
    backface-visibility: hidden;
    display: flex;
    flex-direction: column; /* Stack child elements vertically */
    align-items: center;
    justify-content: center;
    font-size: 14px;
    border-radius: 20px;
    text-align: center;
}

.card-front {
    background-image: url('asset/image2.jpg');
    background-size: cover;
    border: 1px solid #ffffff;
    border-color: #fff;
    color: #ffffff;
    transition: box-shadow 0.3s;
}

.card:hover .card-front {
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.8);
}

.card-back {
    background-color: #ffffff;
    color: #000000;
    transform: rotateY(180deg);
    font: bold 12px/1.4 'Open Sans', arial, sans-serif;
    padding: 10px;
}

.button-container {
    display: flex;
    gap: 5px; /* Adjust gap for better spacing between buttons */
    margin-block-start: 10px;
}


h3 {
    color: white;
    font: bold 14px/1.4 'Open Sans', arial, sans-serif;
}

/* Responsive Styles */
@media screen and (max-inline-size: 600px) {
    .card-container {
        flex-direction: column;
        align-items: center;
    }

    .card {
        inline-size: 80%; /* Adjust card size for smaller screens */
        block-size: auto;
        margin-block-end: 20px;
    }

    #btn1, #btn2, #btn3 {
        inline-size: 80%; /* Adjust button width for smaller screens */
        border-radius: 10px;
        font: 'open sans';
    }
}