.content-box {
    position: relative;
    padding: 30px;
    margin: 30px auto;
    border-radius: 20px;
    max-width: 720px;
    z-index: 1;
    backdrop-filter: blur(6px);
    border: 2px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
  
    /* ✅ Custom background brush stroke */
    background-image: url('/washi.png'); /* update path if needed */
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
    background-color: rgba(255, 255, 255, 0.05); /* base transparent layer */
  }
  
  .content-box::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 20px;
    background: rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(3px);
    pointer-events: none;
    z-index: -1;
  }
  #userName,
  .link,
  #hashtag {
    text-shadow: 2px 2px 6px rgba(0, 0, 0, 0.7);
  }
  
  .link {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    background-color: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(2px);
  }