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

  body {
      font-family: 'Inter', 'Segoe UI', sans-serif;
      background-color: #f8fafc;
      min-height: 100vh;
      color: #334155;
  }

  /* Navbar Styles */
  .navbar {
      background: #ffffff;
      padding: 18px 0;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
      animation: slideDown 0.6s ease-out;
  }

  .navbar-brand {
      font-weight: 800;
      font-size: 1.6rem;
      color: #1e3a5f;
  }

  .navbar-brand i {
      color: #4a90e2;
  }

  .nav-link {
      color: #64748b !important;
      font-weight: 500;
      margin: 0 12px;
      transition: color 0.3s;
  }

  .nav-link:hover {
      color: #4a90e2 !important;
  }

  /* Alert Section */
  .alert-section {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: 12px;
      padding: 25px 30px;
      margin: 30px auto;
      max-width: 1200px;
      animation: fadeInUp 0.8s ease-out;
      box-shadow: 0 4px 6px rgba(0, 0, 0, 0.03);
      position: relative;
      overflow: hidden;
  }

  .alert-section::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 5px;
      height: 100%;
      background: linear-gradient(to bottom, #4a90e2, #3b82f6);
  }

  .alert-section h5 {
      color: #1e40af;
      font-weight: 700;
      margin-bottom: 18px;
      font-size: 1.3rem;
      display: flex;
      align-items: center;
  }

  .alert-section h5 i {
      margin-right: 10px;
      font-size: 1.4rem;
  }

  .alert-section ul {
      margin-bottom: 0;
      padding-left: 20px;
  }

  .alert-section li {
      margin-bottom: 12px;
      color: #475569;
      font-size: 1rem;
      line-height: 1.6;
      position: relative;
  }

  .alert-section li strong {
      color: #1e3a5f;
  }

  /* Header Section */
  .header-section {
      text-align: center;
      padding: 50px 20px 40px;
      background: linear-gradient(to right, #f8fbff, #ffffff);
      animation: fadeInUp 1s ease-out;
  }

  .header-section h1 {
      font-weight: 800;
      font-size: 2.8rem;
      margin-bottom: 15px;
      color: #1e3a5f;
  }

  .header-section p {
      font-size: 1.2rem;
      color: #64748b;
      max-width: 600px;
      margin: 0 auto;
  }

  /* Cards Section */
  .cards-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 40px 20px;
  }

  .pricing-card {
      background: white;
      border-radius: 15px;
      padding: 35px;
      margin-bottom: 30px;
      border: 1px solid #e2e8f0;
      transition: all 0.4s ease;
      animation: fadeInUp 1s ease-out;
      position: relative;
      height: 100%;
      box-shadow: 0 4px 6px rgba(0, 0, 0, 0.03);
      overflow: hidden;
  }

  .pricing-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
  }

  .pricing-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 12px 25px rgba(0, 0, 0, 0.08);
      border-color: #cbd5e1;
  }

  .pricing-card.basic::before {
      background: linear-gradient(to right, #94a3b8, #64748b);
  }

  .pricing-card.basic:hover {
      border-color: #94a3b8;
  }

  .pricing-card.popular {
      transform: scale(1.03);
      box-shadow: 0 8px 20px rgba(37, 99, 235, 0.08);
      border: 1px solid #e2e8f0;
  }

  .pricing-card.popular::before {
      background: linear-gradient(to right, #3b82f6, #2563eb);
  }

  .pricing-card.popular:hover {
      border-color: #3b82f6;
      box-shadow: 0 12px 25px rgba(37, 99, 235, 0.12);
  }

  .pricing-card.premium::before {
      background: linear-gradient(to right, #8b5cf6, #7c3aed);
  }

  .pricing-card.premium:hover {
      border-color: #8b5cf6;
      box-shadow: 0 12px 25px rgba(139, 92, 246, 0.12);
  }

  .badge-tag {
      position: absolute;
      top: 20px;
      right: -8px;
      color: white;
      padding: 6px 20px;
      font-size: 0.8rem;
      font-weight: 700;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
      border-radius: 5px 0 0 5px;
  }

  .badge-basic {
      background: linear-gradient(to right, #94a3b8, #64748b);
  }

  .badge-popular {
      background: linear-gradient(to right, #3b82f6, #2563eb);
  }

  .badge-premium {
      background: linear-gradient(to right, #8b5cf6, #7c3aed);
  }

  .card-title {
      color: #1e3a5f;
      font-weight: 700;
      font-size: 1.8rem;
      margin-bottom: 15px;
      margin-top: 10px;
  }

  .price {
      font-size: 2.8rem;
      font-weight: 800;
      color: #1e3a5f;
      margin-bottom: 25px;
  }

  .price-label {
      font-size: 0.9rem;
      color: #94a3b8;
      font-weight: 400;
  }

  /* Documents Section */
  .documents-section {
      background: #f8fafc;
      padding: 20px;
      border-radius: 10px;
      margin-bottom: 25px;
      border: 1px solid #e2e8f0;
  }

  .documents-section h6 {
      color: #1e3a5f;
      font-weight: 700;
      margin-bottom: 15px;
      font-size: 1.1rem;
      display: flex;
      align-items: center;
  }

  .documents-section h6 i {
      margin-right: 8px;
      color: #3b82f6;
  }

  .document-item {
      display: flex;
      align-items: center;
      padding: 12px;
      background: white;
      border-radius: 8px;
      margin-bottom: 10px;
      border: 1px solid #e2e8f0;
      transition: all 0.3s;
  }

  .document-item:hover {
      border-color: #cbd5e1;
      transform: translateX(5px);
  }

  .document-item i {
      font-size: 1.5rem;
      margin-right: 12px;
      color: #3b82f6;
  }

  .document-item span {
      color: #475569;
      font-weight: 500;
  }

  /* Features List */
  .features-list {
      list-style: none;
      padding: 0;
      margin: 25px 0;
  }

  .features-list li {
      padding: 12px 0;
      color: #64748b;
      font-size: 1rem;
      border-bottom: 1px solid #f1f5f9;
      display: flex;
      align-items: center;
  }

  .features-list li:last-child {
      border-bottom: none;
  }

  .features-list i {
      color: #10b981;
      margin-right: 12px;
      font-size: 1.1rem;
  }

  .btn-payment {
      background: #1e3a5f;
      color: white;
      border: none;
      padding: 15px 30px;
      border-radius: 8px;
      font-weight: 600;
      font-size: 1.05rem;
      width: 100%;
      transition: all 0.3s;
      text-transform: uppercase;
      letter-spacing: 0.5px;
  }

  .btn-payment:hover {
      background: #152d47;
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(30, 58, 95, 0.2);
  }

  .btn-basic {
      background: linear-gradient(to right, #94a3b8, #64748b);
  }

  .btn-basic:hover {
      background: linear-gradient(to right, #64748b, #475569);
  }

  .btn-popular {
      background: linear-gradient(to right, #3b82f6, #2563eb);
  }

  .btn-popular:hover {
      background: linear-gradient(to right, #2563eb, #1e40af);
      box-shadow: 0 8px 20px rgba(37, 99, 235, 0.2);
  }

  .btn-premium {
      background: linear-gradient(to right, #8b5cf6, #7c3aed);
  }

  .btn-premium:hover {
      background: linear-gradient(to right, #7c3aed, #6d28d9);
      box-shadow: 0 8px 20px rgba(139, 92, 246, 0.2);
  }

  /* Verify Button */
  .verify-section {
      text-align: center;
      padding: 40px 20px 60px;
      animation: fadeInUp 1.2s ease-out;
      background: #f8fafc;
      margin-top: 30px;
  }

  .btn-verify {
      background: linear-gradient(to right, #3b82f6, #2563eb);
      color: white;
      border: none;
      padding: 18px 50px;
      border-radius: 8px;
      font-weight: 700;
      font-size: 1.2rem;
      transition: all 0.3s;
      text-transform: uppercase;
      letter-spacing: 1px;
  }

  .btn-verify:hover {
      background: linear-gradient(to right, #2563eb, #1e40af);
      transform: translateY(-3px);
      box-shadow: 0 10px 30px rgba(37, 99, 235, 0.2);
  }

  /* Modal/Verification Box */
  .verification-modal {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(0, 0, 0, 0.5);
      z-index: 9999;
      animation: fadeIn 0.3s ease;
      overflow-y: auto;
      padding: 20px;
  }

  .verification-modal.active {
      display: flex;
      align-items: center;
      justify-content: center;
  }

  .verification-box {
      background: white;
      border-radius: 15px;
      padding: 40px;
      max-width: 600px;
      width: 100%;
      box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
      animation: slideUp 0.4s ease-out;
      position: relative;
  }

  .close-modal {
      position: absolute;
      top: 20px;
      right: 20px;
      font-size: 1.5rem;
      color: #94a3b8;
      cursor: pointer;
      transition: color 0.3s;
  }

  .close-modal:hover {
      color: #475569;
  }

  .verification-box h3 {
      color: #1e3a5f;
      font-weight: 700;
      margin-bottom: 25px;
      font-size: 1.8rem;
      display: flex;
      align-items: center;
  }

  .verification-box h3 i {
      margin-right: 10px;
      color: #3b82f6;
  }

  .form-label {
      color: #475569;
      font-weight: 600;
      margin-bottom: 8px;
  }

  .form-control {
      border: 1px solid #e2e8f0;
      border-radius: 8px;
      padding: 12px 15px;
      font-size: 1rem;
      transition: all 0.3s;
      background-color: #f8fafc;
  }

  .form-control:focus {
      border-color: #3b82f6;
      box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
      background-color: white;
  }

  .btn-submit-verification {
      background: linear-gradient(to right, #3b82f6, #2563eb);
      color: white;
      border: none;
      padding: 15px 40px;
      border-radius: 8px;
      font-weight: 600;
      font-size: 1.1rem;
      width: 100%;
      margin-top: 20px;
      transition: all 0.3s;
  }

  .btn-submit-verification:hover {
      background: linear-gradient(to right, #2563eb, #1e40af);
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(37, 99, 235, 0.2);
  }

  #payment-loading-overlay {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(0, 0, 0, 0.5);
      /* dark transparent bg */
      display: none;
      justify-content: center;
      align-items: center;
      color: #fff;
      font-size: 1.5rem;
      z-index: 9999;
      backdrop-filter: blur(3px);
      /* blur background */
  }

  .glass-effect {
      background: rgba(255, 255, 255, 0.85);
      backdrop-filter: blur(12px);
      border: 1px solid rgba(255, 255, 255, 0.25);
      animation: zoomIn 0.4s ease;
  }

  @keyframes zoomIn {
      from {
          transform: scale(0.8);
          opacity: 0;
      }

      to {
          transform: scale(1);
          opacity: 1;
      }
  }


  /* Animations */
  @keyframes slideDown {
      from {
          transform: translateY(-100%);
          opacity: 0;
      }

      to {
          transform: translateY(0);
          opacity: 1;
      }
  }

  @keyframes fadeInUp {
      from {
          transform: translateY(30px);
          opacity: 0;
      }

      to {
          transform: translateY(0);
          opacity: 1;
      }
  }

  @keyframes fadeIn {
      from {
          opacity: 0;
      }

      to {
          opacity: 1;
      }
  }

  @keyframes slideUp {
      from {
          transform: translateY(50px);
          opacity: 0;
      }

      to {
          transform: translateY(0);
          opacity: 1;
      }
  }

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

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

      .pricing-card.popular {
          transform: scale(1);
      }

      .price {
          font-size: 2.2rem;
      }

      .card-title {
          font-size: 1.5rem;
      }

      .badge-tag {
          right: -5px;
          padding: 5px 15px;
          font-size: 0.75rem;
      }

      .verification-box {
          padding: 30px 20px;
      }
  }

  /* Delay animations for cards */
  .pricing-card:nth-child(1) {
      animation-delay: 0.2s;
  }

  .pricing-card:nth-child(2) {
      animation-delay: 0.4s;
  }

  .pricing-card:nth-child(3) {
      animation-delay: 0.6s;
  }