* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      min-height: 100vh;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 20px;
    }
    .container {
      background: white;
      border-radius: 20px;
      padding: 60px 40px;
      max-width: 600px;
      width: 100%;
      box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
      text-align: center;
    }
    .checkmark {
      width: 80px;
      height: 80px;
      border-radius: 50%;
      background: #10b981;
      margin: 0 auto 30px;
      display: flex;
      align-items: center;
      justify-content: center;
      animation: scaleIn 0.5s ease-out;
    }
    .checkmark svg {
      width: 50px;
      height: 50px;
      stroke: white;
      stroke-width: 3;
      fill: none;
      stroke-linecap: round;
      stroke-linejoin: round;
      stroke-dasharray: 50;
      stroke-dashoffset: 50;
      animation: drawCheck 0.5s ease-out 0.3s forwards;
    }
    @keyframes scaleIn {
      from { transform: scale(0); }
      to { transform: scale(1); }
    }
    @keyframes drawCheck {
      to { stroke-dashoffset: 0; }
    }
    h1 {
      color: #1f2937;
      font-size: 2.5rem;
      margin-bottom: 20px;
      font-weight: 700;
    }
    .personalized {
      color: #667eea;
      font-weight: 700;
    }
    p {
      color: #6b7280;
      font-size: 1.125rem;
      line-height: 1.7;
      margin-bottom: 15px;
    }
    .highlight {
      background: #f3f4f6;
      padding: 20px;
      border-radius: 10px;
      margin: 30px 0;
      border-left: 4px solid #667eea;
    }
    .contact-info {
      font-weight: 600;
      color: #374151;
    }
    .footer {
      margin-top: 40px;
      padding-top: 30px;
      border-top: 1px solid #e5e7eb;
      color: #9ca3af;
      font-size: 0.875rem;
    }
    @media (max-width: 640px) {
      .container {
        padding: 40px 25px;
      }
      h1 {
        font-size: 2rem;
      }
      p {
        font-size: 1rem;
      }
    }