body {
        font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
        margin: 0;
        padding: 0;
        background: linear-gradient(135deg, #1b1b2f, #4a4a6b);
        color: #fff;
        height: 100vh;
        display: flex;
        justify-content: center;
        align-items: center;
        text-align: center;
      }

      /* Header Section */
      .header {
        max-width: 500px;
        padding: 40px 20px;
        background-color: rgba(0, 0, 0, 0.7);
        border-radius: 15px;
        box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
        backdrop-filter: blur(10px);
        animation: fadeIn 1.5s ease-out;
      }

      .header img {
        max-width: 150px;
        margin-bottom: 30px;
        border-radius: 50%;
        box-shadow: 0px 8px 15px rgba(0, 0, 0, 0.5);
      }

      .header h1 {
        font-size: 2.8rem;
        font-weight: bold;
        margin-bottom: 15px;
        letter-spacing: 1px;
        color: #ffcb05;
        animation: slideIn 1s ease-out;
      }

      .header p {
        font-size: 1.1rem;
        margin-bottom: 30px;
        line-height: 1.8;
        opacity: 0.8;
        animation: fadeInText 2s ease-in-out;
      }

      /* Subscriber Information */
      .subscriber-info {
        font-size: 1.5rem;
        font-weight: bold;
        color: #ffd700;
        margin-bottom: 25px;
        text-transform: uppercase;
        letter-spacing: 1px;
        opacity: 0.9;
        animation: fadeInText 2s ease-in-out;
      }

      .subscriber-info span {
        display: block;
        font-size: 1.2rem;
        color: #fff;
        margin-top: 10px;
        letter-spacing: 1px;
      }

      .container {
        margin-top: 20px;
        justify-content: center;
        align-content: center;
        display: flex;
      }

      /* Button Design (unchanged) */
      .button {
        position: relative;
        transition: all 0.3s ease-in-out;
        box-shadow: 0px 10px 20px rgba(0, 0, 0, 0.3);
        padding-block: 0.5rem;
        padding-inline: 1.25rem;
        background-color: rgb(0 107 179);
        border-radius: 9999px;
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        color: #ffff;
        gap: 10px;
        font-weight: bold;
        border: 3px solid #ffffff4d;
        outline: none;
        overflow: hidden;
        font-size: 15px;
      }

      .icon {
        width: 24px;
        height: 24px;
        transition: all 0.3s ease-in-out;
      }

      .button:hover {
        transform: scale(1.05);
        border-color: #fff9;
      }

      .button:hover .icon {
        transform: translate(4px);
      }

      .button:hover::before {
        animation: shine 1.5s ease-out infinite;
      }

      .button::before {
        content: "";
        position: absolute;
        width: 100px;
        height: 100%;
        background-image: linear-gradient(
          120deg,
          rgba(255, 255, 255, 0) 30%,
          rgba(255, 255, 255, 0.8),
          rgba(255, 255, 255, 0) 70%
        );
        top: 0;
        left: -100px;
        opacity: 0.6;
      }

      /* Animations */
      @keyframes slideIn {
        0% {
          transform: translateY(-30px);
          opacity: 0;
        }
        100% {
          transform: translateY(0);
          opacity: 1;
        }
      }

      @keyframes fadeIn {
        0% {
          opacity: 0;
        }
        100% {
          opacity: 1;
        }
      }

      @keyframes fadeInText {
        0% {
          transform: translateY(30px);
          opacity: 0;
        }
        100% {
          transform: translateY(0);
          opacity: 1;
        }
      }

      @keyframes shine {
        0% {
          left: -100%;
        }
        60% {
          left: 100%;
        }
        100% {
          left: 100%;
        }
      }

      /* Responsive Design */
      @media (max-width: 768px) {
        .header h1 {
          font-size: 2rem;
        }

        .header p {
          font-size: 1rem;
        }

        .subscriber-info {
          font-size: 1.3rem;
        }

        .cta-button {
          font-size: 1rem;
          padding: 12px 25px;
        }
      }

      @media (max-width: 480px) {
        .header img {
          max-width: 120px;
        }

        .header h1 {
          font-size: 1.8rem;
        }

        .header p {
          font-size: 0.9rem;
        }

        .cta-button {
          font-size: 0.9rem;
          padding: 10px 20px;
        }
      }