#pkr-app, #pkr-app * { box-sizing: border-box; }
  #pkr-app {
    max-width: 600px;
    margin: 24px auto;
    background: #0D0D11;
    color: #EDEDED;
    font-family: 'Montserrat', Helvetica, Arial, sans-serif;
    border-radius: 20px;
    padding: 36px 24px;
    line-height: 1.6;
    border: 1px solid #1F1F26;
    box-shadow: 0 20px 50px rgba(0,0,0,0.6);
  }
  
  /* SEO Semantic Typo */
  #pkr-app h1.pkr-seo-title { font-size: 24px; font-weight: 700; color: #FFFFFF; margin-top: 0; margin-bottom: 8px; line-height: 1.3; }
  #pkr-app h2.pkr-seo-subtitle { font-size: 15px; font-weight: 500; color: #B3B3B3; margin-top: 0; margin-bottom: 20px; line-height: 1.5; }
  #pkr-app h3 { font-size: 18px; font-weight: 600; color: #FFFFFF; margin-top: 0; margin-bottom: 20px; line-height: 1.4; }
  #pkr-app p { color: #A6A6A6; font-size: 14px; margin-bottom: 20px; }
  #pkr-app a { color: #FF2D7A; text-decoration: none; font-weight: 600; transition: color 0.2s; }
  #pkr-app a:hover { color: #FF66A3; text-decoration: underline; }
  
  .pkr-gradient-bar {
    height: 4px;
    width: 60px;
    border-radius: 2px;
    background: linear-gradient(90deg, #8E0E3A, #FF2D7A);
    margin-bottom: 24px;
  }
  
  #pkr-screen {
    transition: opacity 0.3s ease-in-out;
    opacity: 1;
  }
  #pkr-screen.pkr-fade { opacity: 0; }

  /* Premium Metadata Badge Row */
  .pkr-meta-row {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 24px;
  }
  .pkr-meta-badge {
    background: #14141A;
    border: 1px solid #23232A;
    padding: 6px 12px;
    border-radius: 8px;
    font-size: 11px;
    font-weight: 600;
    color: #CCCCCC;
    display: flex;
    align-items: center;
    gap: 5px;
  }

  .pkr-btn {
    display: block;
    width: 100%;
    text-align: left;
    background: #14141A;
    border: 1px solid #23232A;
    color: #E6E6E6;
    padding: 16px 20px;
    border-radius: 14px;
    margin-bottom: 12px;
    font-size: 14.5px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  }
  .pkr-btn:hover {
    border-color: #FF2D7A;
    background: #1A1A22;
    transform: translateY(-1px);
  }

  /* Premium Glowing CTA Button */
  .pkr-primary-btn {
    display: inline-block;
    background: linear-gradient(90deg, #8E0E3A, #C2185B, #FF2D7A);
    color: #FFFFFF;
    font-weight: 700;
    border: none;
    padding: 16px 36px;
    border-radius: 30px;
    font-size: 15px;
    font-family: 'Montserrat', sans-serif;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(255, 45, 122, 0.3);
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.03em;
  }
  .pkr-primary-btn:hover {
    box-shadow: 0 6px 25px rgba(255, 45, 122, 0.5);
    transform: translateY(-2px);
    opacity: 0.95;
  }
  
  .pkr-ghost-btn {
    display: inline-block;
    background: transparent;
    color: #B3B3B3;
    border: 1px solid #2C2C35;
    padding: 15px 28px;
    border-radius: 30px;
    font-size: 14px;
    font-family: 'Montserrat', sans-serif;
    cursor: pointer;
    transition: all 0.2s;
  }
  .pkr-ghost-btn:hover { color: #FFFFFF; border-color: #555566; }

  /* Premium Multi-Share Box Custom Layout */
  .pkr-share-box {
    background: #14141A;
    border: 1px solid #1F1F26;
    border-radius: 14px;
    padding: 20px;
    margin-top: 28px;
    text-align: center;
  }
  .pkr-share-title { font-size: 12px; font-weight: 700; color: #FFFFFF; margin-bottom: 16px; text-transform: uppercase; letter-spacing: 0.08em; }
  .pkr-share-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; max-width: 460px; margin: 0 auto; }
  
  .pkr-share-btn-full { grid-column: span 2; }
  
  .pkr-share-btn {
    background: #1F1F26;
    color: #EDEDED;
    border: 1px solid #2C2C35;
    padding: 12px 14px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    font-family: 'Montserrat', sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
  }
  .pkr-share-btn:hover { background: #FF2D7A; color: #FFF; border-color: #FF2D7A; }
  .pkr-share-btn-wa:hover { background: #25D366; border-color: #25D366; color: #FFF; }

  .pkr-progress-container { margin-bottom: 24px; }
  .pkr-progress-track {
    width: 100%;
    height: 6px;
    background: #1F1F26;
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 8px;
  }
  .pkr-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #8E0E3A, #FF2D7A);
    width: 0%;
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  }
  
  .pkr-tag {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: #FF66A3;
    background: rgba(255, 45, 122, 0.08);
    border: 1px solid rgba(255, 45, 122, 0.2);
    padding: 4px 12px;
    border-radius: 20px;
    margin-bottom: 14px;
  }
  
  .pkr-context-label { font-size: 12px; color: #808099; font-weight: 500; margin-bottom: 12px; }

  .pkr-card {
    background: #14141A;
    border-left: 4px solid #FF2D7A;
    padding: 20px;
    border-radius: 0 14px 14px 0;
    margin-bottom: 20px;
    border-top: 1px solid #1F1F26;
    border-right: 1px solid #1F1F26;
    border-bottom: 1px solid #1F1F26;
  }
  .pkr-card h4 { color: #FF2D7A; font-size: 16px; font-weight: 600; margin: 0 0 8px 0; }
  .pkr-card p { margin-bottom: 0; font-size: 14px; color: #CCCCCC; }
  
  .pkr-divider { border: none; border-top: 1px solid #1F1F26; margin: 24px 0; }
  .pkr-small { font-size: 13.5px; color: #808099; line-height: 1.5; }
  
  .pkr-reflect {
    background: #111116;
    border: 1px dashed #3D1C2A;
    padding: 16px;
    border-radius: 12px;
    margin-bottom: 12px;
    font-size: 14px;
    color: #D1D1D6;
  }
  
  .pkr-loader-container { text-align: center; padding: 40px 20px; }
  .pkr-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid #1F1F26;
    border-top: 3px solid #FF2D7A;
    border-radius: 50%;
    margin: 0 auto 20px auto;
    animation: pkr-spin 0.8s linear infinite;
  }
  @keyframes pkr-spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }
  #pkr-loader-text { font-size: 15px; font-weight: 500; color: #FF66A3; }

  .pkr-footer-atribusi {
    text-align: center;
    margin-top: 32px;
    font-size: 11px;
    color: #4A4A5A;
    letter-spacing: 0.05em;
    text-transform: uppercase;
  }

  /* Optimal Mobile Responsiveness */
  @media screen and (max-width: 480px) {
    #pkr-app { padding: 28px 16px; margin: 12px auto; border-radius: 16px; }
    #pkr-app h1.pkr-seo-title { font-size: 20px; }
    #pkr-app h2.pkr-seo-subtitle { font-size: 13.5px; }
    .pkr-btn { padding: 14px 16px; font-size: 13.5px; border-radius: 12px; }
    .pkr-share-grid { grid-template-columns: 1fr; }
    .pkr-share-btn-full, .pkr-share-btn { grid-column: span 1; }
  }

  @media print {
    body * { visibility: hidden; background: #FFFFFF !important; color: #000000 !important; }
    #pkr-app, #pkr-app * { visibility: visible; }
    #pkr-app { position: absolute; left: 0; top: 0; width: 100%; max-width: 100%; border: none; box-shadow: none; padding: 0; background: #FFFFFF !important; color: #000000 !important; }
    .pkr-card { background: #F5F5F7 !important; border-left: 4px solid #000000 !important; border-top: 1px solid #DDD !important; border-right: 1px solid #DDD !important; border-bottom: 1px solid #DDD !important; }
    .pkr-card h4 { color: #000000 !important; }
    .pkr-card p, #pkr-app p, .pkr-small, .pkr-reflect { color: #111111 !important; }
    .pkr-reflect { border: 1px dashed #666 !important; background: #FFF !important; }
    .pkr-no-print { display: none !important; }
    .pkr-gradient-bar { background: #000000 !important; width: 100px; }
    .pkr-tag { background: #EEE !important; border: 1px solid #999 !important; color: #000 !important; }
  }