@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');
    
    :root {
      --primary: #075E54;
      --primary-hover: #075E54;
      --success: #10b981;
      --error: #ef4444;
      --warning: #f59e0b;
      --text-primary: #075E54;
      --text-secondary: #075E54;
      --bg-light: #075E54;
      --bg-card: #ffffff;
    }
    
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    
    body {
      font-family: 'Poppins', sans-serif;
      scroll-behavior: smooth;
      background-color: var(--bg-light);
      color: var(--text-primary);
      line-height: 1.6;
      height: 100vh;
      overflow-y: scroll;
    }
    
    .payment-container {
      display: flex;
      min-height: 100vh;
      align-items: center;
      justify-content: center;
      padding: 2rem;
      background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);
    }
    
    .payment-card {
      width: 100%;
      max-width: 480px;
      background: var(--bg-card);
      border-radius: 1.5rem;
      box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 
                  0 10px 10px -5px rgba(0, 0, 0, 0.02);
      overflow: hidden;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      transform: translateY(0);
      opacity: 1;
      transition: all 0.5s ease;
    }
    
    .payment-card.hidden {
      transform: translateY(-50px);
      opacity: 0;
    }
    
    .payment-card.visible {
      transform: translateY(0);
      opacity: 1;
    }
    
    .payment-header {
      background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
      color: white;
      padding: 1.75rem 2rem;
      text-align: center;
      position: relative;
    }
    
    .payment-header::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 4px;
      background: linear-gradient(90deg, #E2136E 0%, #30A960 100%);
    }
    
    .payment-body {
      padding: 2rem;
    }
    
    .form-group {
      margin-bottom: 1.5rem;
      position: relative;
    }
    
    .form-label {
      display: block;
      margin-bottom: 0.5rem;
      font-size: 0.875rem;
      font-weight: 500;
      color: var(--text-primary);
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }
    
    .form-label i {
      font-size: 1rem;
      color: var(--primary);
    }
    
    .form-control {
      width: 100%;
      padding: 0.875rem 1rem;
      font-size: 1rem;
      border: 1px solid #e5e7eb;
      border-radius: 0.75rem;
      background-color: #f9fafb;
      transition: all 0.3s ease;
      box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.05);
    }
    
    .form-control:focus {
      outline: none;
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
      background-color: white;
    }
    
    .form-control.error {
      border-color: var(--error);
      box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2);
    }
    
    .error-message {
      color: var(--error);
      font-size: 0.75rem;
      margin-top: 0.25rem;
      display: flex;
      align-items: center;
      gap: 0.25rem;
    }
    
    .payment-options {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 1rem;
      margin-bottom: 1.5rem;
    }
    
    .payment-option {
      position: relative;
      border: 1px solid #e5e7eb;
      border-radius: 0.75rem;
      padding: 1rem;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      transition: all 0.3s ease;
      background-color: white;
      height: 80px;
    }
    
    .payment-option:hover {
      transform: translateY(-2px);
      box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 
                  0 2px 4px -1px rgba(0, 0, 0, 0.02);
    }
    
    .payment-option.selected {
      border-color: var(--primary);
      box-shadow: 0 0 0 1px var(--primary);
      background-color: rgba(99, 102, 241, 0.05);
    }
    
    .payment-option input {
      position: absolute;
      opacity: 0;
      height: 0;
      width: 0;
    }
    
    .payment-option img {
      max-height: 30px;
      max-width: 100%;
      object-fit: contain;
      transition: transform 0.3s ease;
    }
    
    .payment-option.selected img {
      transform: scale(1.1);
    }
    
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 0.875rem 1.5rem;
      font-size: 1rem;
      font-weight: 500;
      border-radius: 0.75rem;
      cursor: pointer;
      transition: all 0.3s ease;
      border: none;
      text-align: center;
    }
    
    .btn-primary {
      background-color: #075E54;
      text-decoration: none;
      color: white;
      width: 100%;
      gap: 1rem;
      box-shadow: 0 4px 6px -1px rgba(99, 102, 241, 0.3), 
                  0 2px 4px -1px rgba(99, 102, 241, 0.1);
    }
    
    .btn-primary:hover {
      background-color: black;
      transform: translateY(-1px);
      box-shadow: 0 10px 15px -3px rgba(99, 102, 241, 0.3), 
                  0 4px 6px -2px rgba(99, 102, 241, 0.1);
    }
    
    .btn-primary:active {
      transform: translateY(0);
    }
    
    .btn-primary:disabled {
      background-color: rgb(0, 0, 0);
      transform: none;
      box-shadow: none;
      cursor: not-allowed;
    }
    
    .copy-btn {
      background-color: var(--primary);
      color: white;
      border-radius: 0.5rem;
      padding: 0.5rem 1rem;
      font-size: 0.875rem;
      transition: all 0.2s ease;
      border: none;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 0.25rem;
      margin-bottom: 15px;
    }
    
    .copy-btn:hover {
      background-color: var(--primary-hover);
    }
    
    .copy-btn.copied {
      background-color: var(--success);
    }
    
    .copy-btn.error {
      background-color: var(--error);
    }
    
    .alert {
      padding: 1rem;
      border-radius: 0.75rem;
      margin-bottom: 1.5rem;
      display: flex;
      align-items: flex-start;
      gap: 0.75rem;
    }
    
    .alert-success {
      background-color: rgba(16, 185, 129, 0.1);
      color: var(--success);
      border: 1px solid rgba(16, 185, 129, 0.2);
    }
    
    .alert-icon {
      font-size: 1.25rem;
      flex-shrink: 0;
    }
    
    .amount-input {
      position: relative;
    }
    
    .currency-symbol {
      position: absolute;
      left: 1rem;
      top: 50%;
      transform: translateY(-50%);
      color: var(--text-secondary);
      font-weight: 500;
    }
    
    .amount-field {
      padding-left: 2.5rem !important;
    }
    
    .security-badge {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      margin-top: 1.5rem;
      color: var(--text-secondary);
      font-size: 0.875rem;
    }
    
    .loader {
      display: inline-block;
      width: 1rem;
      height: 1rem;
      border: 2px solid rgba(255, 255, 255, 0.3);
      border-radius: 50%;
      border-top-color: white;
      animation: spin 1s ease-in-out infinite;
    }
    
    @keyframes spin {
      to { transform: rotate(360deg); }
    }
    
    @keyframes fadeIn {
      from { opacity: 0; transform: translateY(-10px); }
      to { opacity: 1; transform: translateY(0); }
    }
    
    @keyframes bounceIn {
      0% { transform: scale(0.9); opacity: 0; }
      50% { transform: scale(1.05); }
      100% { transform: scale(1); opacity: 1; }
    }
    
    .animate-bounce-in {
      animation: bounceIn 0.5s ease;
    }
    
    .animate-fade-in {
      animation: fadeIn 0.3s ease;
    }
    
    .mobile-number-section {
      background-color: #f9fafb;
      border-radius: 0.75rem;
      padding: 1.25rem;
      margin-bottom: 1.5rem;
      border: 1px dashed #e5e7eb;
      display: none;
    }
    
    .mobile-number-label {
      font-size: 0.875rem;
      color: var(--text-secondary);
      margin-bottom: 0.5rem;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }
    
    .mobile-number-value {
      font-size: 1.125rem;
      font-weight: 600;
      color: red;
      margin-bottom: 1rem;
      word-break: break-all;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }
    
    .mobile-number-value i {
      color: var(--primary);
    }
    
    .mobile-number-instruction {
      font-size: 0.75rem;
      color: var(--text-secondary);
      line-height: 1.5;
    }
    
    .highlight {
      color: var(--primary);
      font-weight: 500;
    }
    
    .receipt-details {
      margin-top: 1.5rem;
      border-top: 1px dashed #e5e7eb;
      padding-top: 1.5rem;
    }
    
    .receipt-item {
      display: flex;
      justify-content: space-between;
      margin-bottom: 0.75rem;
    }
    
    .receipt-label {
      color: var(--text-secondary);
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }
    
    .receipt-value {
      font-weight: 500;
    }
    
    .receipt-total {
      font-weight: 600;
      color: var(--primary);
    }
    
    .action-buttons {
      display: flex;
      gap: 1rem;
      margin-top: 1.5rem;
    }
    
    .btn-secondary {
      background-color: #e5e7eb;
      color: var(--text-primary);
      flex: 1;
      gap: 1rem;
      color: red;
    }
    
    .btn-secondary:hover {
      background-color: rgb(68, 0, 255);
    }
    
    #successMessage {
      display: none;
    }
    
    #paymentFormFields {
      display: block;
    }
    
    .auto-scroll-indicator {
      position: fixed;
      bottom: 29px;
      right: 6%;
      transform: translateX(-50%);
      background-color: var(--primary);
      color: white;
      width: 40px;
      height: 40px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
      z-index: 100;
      opacity: 0;
      transition: opacity 0.3s ease;
    }
    
    .auto-scroll-indicator.visible {
      opacity: 1;
    }
    
    @media (max-width: 480px) {
      .payment-container {
        padding: 1rem;
      }
      
      .payment-options {
        grid-template-columns: 1fr;
      }
      
      .payment-header {
        padding: 1.5rem 1rem;
      }
      
      .payment-body {
        padding: 1.5rem;
      }
      
      .action-buttons {
        flex-direction: column;
      }
    }