:root {
    --primary-color: #0f0f1e;
    --secondary-color: #1c1c2e;
    --accent-color: #ffd700;
    --text-color: #ffffff;
    --gradient-start: #ff00ff;
    --gradient-end: #00ffff;
  }

  * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }

  .popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
  }

  .popup-overlay.active {
    opacity: 1;
    visibility: visible;
  }

  .popup {
    background: rgba(255,255,255,0.05);
    border-radius: 30px;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 20px 50px rgba(0,0,0,0.3);
    width: 90%;
    max-width: 600px;
    padding: 40px;
    text-align: center;
    position: relative;
  }

  .popup::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: #0f0f1e;
    opacity: 1;
    z-index: -1;
    animation: rotate 20s linear infinite;
  }

  @keyframes rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
  }

  .popup-overlay h2 {
    font-size: 2.5em;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
    background: linear-gradient(45deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }

  p {
    font-size: 1em;
    opacity: 0.8;
    margin-bottom: 30px;
  }

  .subscription-options {
    display: flex;
    justify-content: space-around;
    margin-top: 30px;
  }

  .option {
    flex: 1;
    margin: 0 15px;
    padding: 20px;
    background: rgba(255,255,255,0.1);
    border-radius: 15px;
    transition: all 0.3s ease;
  }

  .option:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.2);
  }

  .btn {
    display: inline-block;
    background: linear-gradient(45deg, var(--gradient-start), var(--gradient-end));
    color: var(--text-color);
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    text-transform: uppercase;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    font-size: 1em;
    letter-spacing: 1px;
    white-space: nowrap;
    margin-top: 20px;
  }

  .btn:before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
      120deg,
      transparent,
      rgba(255, 255, 255, 0.3),
      transparent
    );
    transition: all 0.6s;
  }

  .btn:hover:before {
    left: 100%;
  }

  .btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
  }

  .close-btn {
    position: absolute;
    top: 10px;
    right: 20px;
    font-size: 24px;
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.3s ease;
  }

  .close-btn:hover {
    transform: scale(1.2);
  }

  @media (max-width: 768px) {
    .subscription-options {
      flex-direction: column;
    }
    .option {
      margin: 15px 0;
    }
      .popup-overlay h2 {
        font-size: 1.5em;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: 1px;
        margin-bottom: 10px;
        background: linear-gradient(45deg, var(--gradient-start), var(--gradient-end));
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
      }
        .btn {
          display: inline-block;
          background: linear-gradient(45deg, var(--gradient-start), var(--gradient-end));
          color: var(--text-color);
          padding: 12px 30px;
          border-radius: 50px;
          text-decoration: none;
          font-weight: bold;
          text-transform: uppercase;
          transition: all 0.3s ease;
          position: relative;
          overflow: hidden;
          font-size: 1em;
          letter-spacing: 1px;
          white-space: nowrap;
          margin-top: -15px;
        }
    
  }