/* reset & full‑viewport */
    * { box-sizing: border-box; margin: 0; padding: 0; }
html, body {
  height: auto;
  min-height: 100%;
}

    /* outer container with rounded left corners */
    .container {
  display: flex;
  flex-direction: row; /* ✅ back to row */
  align-items: flex-start;
  min-height: 100vh;
  width: 100%;
      border-radius: 0px;
      overflow: hidden;
      font-family: sans-serif;
    }

    /* main (dark) and sidebar (light) panels */
    .main {
flex: 1;
  background: #343434;
  color: #fff;
  position: relative;
  overflow-y: auto;
  height: 100vh; 

  /* Hide scrollbar - cross-browser */
  scrollbar-width: none; /* Firefox */
  -ms-overflow-style: none;  /* IE and Edge */
}

.main::-webkit-scrollbar {
  display: none; /* Chrome, Safari, Opera */
}
    .sidebar {
      width: 320px;
      min-width: 250px;
      background: #ddd;
      display:none;
    }

    /* header inside main area */
    .header {
      display: flex;
      align-items: center;
      padding: 20px 40px;
    }
    .logo {
      font-size: 2rem;
      font-weight: bold;
      line-height: 1;
      text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
    }
    .logo .pro {
      font-size: 0.5em;
      background: #fff;
      color: #343434;
      padding: 2px 6px;
      border-radius: 4px;
      margin-left: 4px;
      vertical-align: top;
    }

    .nav {
      display: flex;
      gap: 30px;
      margin-left: 60px;
    }
    .nav a {
      color: #fff;
      text-decoration: none;
      font-size: 1rem;
      transition: color .2s;
    }
    .nav a:hover {
      color: #aaa;
    }

    /* centered double‑layer “card” */
    .card-wrapper {
 width: 620px;
  height: 410px;
  margin: 60px auto 40px auto; /* Top margin + center */
  position: relative;
    }
    .card-back {
      background: #4a9fb2;
      width: 100%;
      height: 100%;
      border-radius: 40px;
      transform: translate(0px, 15px);
      box-shadow: 0 10px 20px rgba(0, 0, 0, 0.4); /* shadow added */
    }
    .card-front {
position: absolute;
    top: 0;
    left: 0;
    padding: 10px;
    width: 100%;
    height: 100%;
    background: #fef7ff;
    border-radius: 40px;
    overflow:hidden;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.4);
    }

.info-section {
  max-width: 800px;
  margin: 40px auto;
  padding: 0px 10px;
  padding-top:80px;
  text-align: center;
} 

.info-section h1 {
  font-size: 1.2em;
  margin-bottom: 20px;
}

.info-section h2 {
  font-size: 1em;
  margin-top: 30px;
  margin-bottom:4px;
}

.info-section p,
.info-section li {
  font-size: 0.75em;
  line-height: 1.6;
  text-align: left;
  margin: 0 auto;
  text-align:center;
  max-width: 600px;
  color: #aaa;
}

@media (max-width: 768px) {
  .sidebar{
    display: none;
  }
  
  .card-wrapper{
      width:100%;
      height:450px;
  }
  #embed{
      height:430px;
  }
}