body {
    font-family: 'Poppins', sans-serif;
    margin: 0;
    padding: 0;
    color: #fff;
    background-color: #0f0f0f;
    background-size: cover;
    background-position: center;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
  }
  
  header {
    background: rgba(15, 15, 15, 0.8);
    text-align: center;
    padding: 2em 1em;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
  }
  
  .header-content {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  
  header h1 {
    font-size: 2.8em;
    margin: 0 0 15px;
    color: #00bfff;
    text-shadow: 0 0 15px #00bfff;
    font-weight: 700;
    letter-spacing: 1.5px;
  }
  
  .cta-buttons {
    display: flex;
    gap: 20px;
    margin-top: 20px;
  }
  
  .cta-button {
    display: inline-flex;
    align-items: center;
    padding: 0.8em 2em;
    background: linear-gradient(90deg, #00bfff 0%, #1e90ff 50%, #00bfff 100%);
    color: white;
    font-size: 1.2em;
    text-decoration: none;
    border-radius: 50px;
    box-shadow: 0 4px 20px rgba(0, 136, 204, 0.6);
    transition: all 0.3s ease;
  }
  
  .cta-button img {
    width: 28px;
    height: auto; /* Maintain aspect ratio */
    margin-right: 12px;
    vertical-align: middle;
  }
  
  .cta-button:hover {
    background: linear-gradient(90deg, #1e90ff 0%, #00bfff 50%, #1e90ff 100%);
    box-shadow: 0 6px 30px rgba(0, 136, 204, 0.8);
  }
  
  main {
    padding: 3em 1em;
    background: rgba(30, 30, 30, 0.9);
    border-radius: 10px;
    margin: 20px auto;
    width: 90%;
    max-width: 1200px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.5);
  }
  
  #models {
    text-align: center;
    margin-bottom: 2em;
  }
  
  #models h2 {
    margin-bottom: 1.5em;
    font-size: 2.2em;
    color: #00bfff;
    text-shadow: 0 0 10px #00bfff;
  }

  .vip-popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(8px);
    z-index: 9999;
    display: none;
  }

  .vip-popup {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: rgb(19,30,51);
    padding: 16px;
    border-radius: 20px;
    color: #fff;
    z-index: 10000;
    text-align: center;
    width: 300px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
    animation: popupFadeIn 0.6s ease-in-out;
  }

  @keyframes popupFadeIn {
    0% {
        transform: translate(-50%, -60%);
        opacity: 0;
    }
    100% {
        transform: translate(-50%, -50%);
        opacity: 1;
    }
  }

  .popup-header h2 {
    font-size: 1.8em;
    margin-bottom: 10px;
    color: #ffffff;
    text-shadow: 0 0 10px rgba(0, 0, 0, 0.7);
  }

  .popup-message {
    font-size: 1.2em;
    margin-bottom: 28px;
    color: #fff;
    text-shadow: 0 0 5px rgba(0, 0, 0, 0.5);
  }

  .popup-content {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .vip-button {
    padding: 11px 21px;
    background-color: #FFD700;
    color: #000;
    font-size: 1.2em;
    font-weight: bold;
    text-decoration: none;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(255, 215, 0, 0.7);
    transition: background-color 0.3s ease, transform 0.3s ease;
    margin-bottom: 18px;
  }

  .vip-button:hover {
    background-color: #e0b800;
    color: #fff;
    transform: translateY(-3px);
    cursor: pointer;
  }

  .circle-timer {
    position: relative;
    width: 60px;
    height: 60px;
    margin: 28px auto 0 auto; 
    display: flex;
    justify-content: center;
    align-items: center;
  }

  .progress-ring {
    transform: rotate(-90deg);
  }

  .progress-ring__circle {
    transition: stroke-dashoffset 1s linear;
    transform: rotate(90deg);
    transform-origin: 50% 50%;
  }

  #timer-text {
    position: absolute;
    top: 13%;
    left: 45%;
    transform: translate(-30%, -40%);
    font-size: 1.3em;
    font-weight: bold;
    color: #FFD700;
    text-shadow: 0 0 5px rgba(0, 0, 0, 0.5);
  }

  @media (max-width: 480px) {
    .vip-popup {
        width: 62%;
        padding: 20px;
    }

    .popup-header h2 {
        font-size: 1.5em;
    }

    .popup-message {
        font-size: 1em;
    }

    .vip-button {
        font-size: 1.1em;
    }
  }

  .vip-login-button {
    display: inline-block;
    padding: 5px 15px; 
    background-color: #FFD700;
    color: #000;
    font-size: 0.9em; 
    font-weight: bold;
    text-decoration: none;
    border-radius: 8px;
    margin-right: 10px;
    box-shadow: 0 0 5px rgba(0, 255, 127, 0.8);
    transition: background-color 0.3s ease, transform 0.3s ease;
    animation: pulse 2s infinite;
  }

  .vip-login-button:hover {
    background-color: #e0b800;
    color: #fff;
    transform: translateY(-3px); 
    box-shadow: 0 0 10px rgba(255, 215, 0, 1);
  }
  
  .model-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
  
  .model-card {
    background: rgba(50, 50, 50, 0.8);
    padding: 15px;
    border-radius: 12px;
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.5);
    text-align: center;
    transition: transform 0.3s ease, background 0.3s ease;
  }
  
  .model-card img {
    max-width: 100%;
    border-radius: 8px;
    margin-bottom: 10px;
  }
  
  .model-title {
    margin: 0 0 15px;
    color: #fff;
    font-size: 1.3em;
    font-weight: 600;
    text-shadow: 0 0 10px rgba(0, 0, 0, 0.6);
  }
  
  .get-mega-button {
    display: inline-block;
    padding: 0.8em 1.5em;
    background: linear-gradient(90deg, #00ff7f 0%, #00bfff 100%);
    color: white;
    font-size: 1em;
    text-decoration: none;
    border-radius: 50px;
    box-shadow: 0 4px 15px rgba(0, 255, 127, 0.6);
    transition: all 0.3s ease;
  }
  
  .get-mega-button:hover {
    background: linear-gradient(90deg, #00bfff 0%, #00ff7f 100%);
    box-shadow: 0 6px 20px rgba(0, 255, 127, 0.8);
  }
  
  #features {
    text-align: center;
    margin-top: 20px;
  }
  
  #features h2 {
    margin-bottom: 1.5em;
    font-size: 2.2em;
    color: #00bfff;
    text-shadow: 0 0 10px #00bfff;
  }
  
  .feature-box {
    background: rgba(50, 50, 50, 0.8);
    margin: 1em 0;
    padding: 1.5em;
    border-radius: 12px;
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.5);
    transition: transform 0.3s ease, background 0.3s ease;
  }
  
  .feature-box h3 {
    margin-top: 0;
    margin-bottom: 0.5em;
    color: #00ff7f;
    font-weight: 600;
    font-size: 1.5em;
  }
  
  .feature-box p {
    margin-bottom: 0;
    color: #ddd;
    font-size: 1.1em;
  }
  
  .feature-box:hover {
    transform: scale(1.05);
    background: rgba(60, 60, 60, 0.9);
  }
  
  footer {
    text-align: center;
    padding: 2em 1em;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    margin-top: auto;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
  }
  
  footer a {
    color: #00bfff;
    text-decoration: none;
    font-weight: 600;
  }
  
  footer a:hover {
    color: #00ff7f;
  }
  
  /* Responsive Layout */
  @media (max-width: 768px) {
    .model-grid {
      grid-template-columns: 1fr;
    }
  
    .cta-buttons {
      flex-direction: column;
      gap: 10px;
    }
  
    header h1 {
      font-size: 2.2em;
    }
  
    .cta-button {
      font-size: 1em;
    }
  
    main {
      padding: 2em 1em;
    }
  
    .feature-box h3 {
      font-size: 1.3em;
    }
  
    .feature-box p {
      font-size: 1em;
    }
  }
  /* Additional styling for the new tutorial button */
.cta-buttons {
  display: flex;
  gap: 20px;
  margin-top: 20px;
}

.cta-button {
  display: inline-flex;
  align-items: center;
  padding: 0.8em 2em;
  background: linear-gradient(90deg, #00bfff 0%, #1e90ff 50%, #00bfff 100%);
  color: white;
  font-size: 1.2em;
  text-decoration: none;
  border-radius: 50px;
  box-shadow: 0 4px 20px rgba(0, 136, 204, 0.6);
  transition: all 0.3s ease;
}

.cta-button img {
  width: 28px;
  height: auto;
  margin-right: 12px;
  vertical-align: middle;
}

.cta-button:hover {
  background: linear-gradient(90deg, #1e90ff 0%, #00bfff 50%, #1e90ff 100%);
  box-shadow: 0 6px 30px rgba(0, 136, 204, 0.8);
}

.sss-buttons {
  display: flex;
}

.sss-button {
  display: inline-flex;
  padding-bottom: 90px;
  align-items: center;
  padding: 0.8em 2em;
  background: linear-gradient(90deg, #00bfff 0%, #1e90ff 50%, #00bfff 100%);
  color: white;
  font-size: 1.2em;
  margin-top: 20px;
  text-decoration: none;
  border-radius: 50px;
  box-shadow: 0 4px 20px rgba(0, 136, 204, 0.6);
  transition: all 0.3s ease;
}

.sss-button img {
  width: 28px;
  height: auto;
  margin-right: 12px;
  vertical-align: middle;
}

.sss:hover {
  background: linear-gradient(90deg, #1e90ff 0%, #00bfff 50%, #1e90ff 100%);
  box-shadow: 0 6px 30px rgba(0, 136, 204, 0.8);
}