body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: #f8f9fa;
        }
        
        .navbar {
            background-color: #fff;
            border-bottom: 1px solid #e7eaf3;
            box-shadow: 0 0.125rem 0.25rem rgba(0,0,0,0.075);
        }
        
        .navbar-brand {
            font-size: 1.25rem;
            font-weight: 600;
            color: #21325b !important;
        }
        
        .navbar-brand span {
            color: #3498db;
        }
        
        .main-content {
            padding: 2rem 0;
        }
        
        .claim-banner {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            border-radius: 1rem;
            padding: 3rem 2rem;
            margin-bottom: 2rem;
            color: white;
            text-align: center;
            box-shadow: 0 10px 40px rgba(102, 126, 234, 0.3);
        }
        
        .claim-banner h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }
        
        .claim-amount {
            font-size: 4rem;
            font-weight: 700;
            margin: 1.5rem 0;
            text-shadow: 0 3px 10px rgba(0,0,0,0.3);
        }
        
        .btn-claim {
            background: white;
            color: #667eea;
            padding: 1.25rem 4rem;
            font-size: 1.25rem;
            font-weight: 700;
            border: none;
            border-radius: 0.75rem;
            box-shadow: 0 6px 20px rgba(0,0,0,0.2);
            transition: all 0.3s ease;
        }
        
        .btn-claim:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 25px rgba(0,0,0,0.3);
            color: #667eea;
        }
        
        .btn-claim:disabled {
            background: #e9ecef;
            color: #6c757d;
            transform: none;
            cursor: not-allowed;
        }
        
        .progress-wrapper {
            display: none;
            margin-top: 2rem;
            padding: 1.5rem;
            background: rgba(255,255,255,0.15);
            border-radius: 0.75rem;
        }
        
        .progress-wrapper.active {
            display: block;
        }
        
        .custom-progress {
            height: 10px;
            background: rgba(255,255,255,0.3);
            border-radius: 5px;
            overflow: hidden;
            margin-bottom: 1rem;
        }
        
        .progress-bar-custom {
            height: 100%;
            background: white;
            width: 0%;
            transition: width 0.5s ease;
            border-radius: 5px;
            box-shadow: 0 0 15px rgba(255,255,255,0.6);
        }
        
        .card {
            border: 1px solid #e7eaf3;
            border-radius: 0.5rem;
            margin-bottom: 1.5rem;
            box-shadow: 0 0.125rem 0.25rem rgba(0,0,0,0.075);
        }
        
        .card-header {
            background-color: #fff;
            border-bottom: 1px solid #e7eaf3;
            padding: 1.25rem;
        }
        
        .card-header h5 {
            margin: 0;
            font-weight: 600;
            color: #1e2022;
        }
        
        .card-body {
            padding: 1.5rem;
        }
        
        .tx-row {
            padding: 1rem 0;
            border-bottom: 1px solid #f8f9fa;
        }
        
        .tx-row:last-child {
            border-bottom: none;
        }
        
        .tx-label {
            color: #6c757d;
            font-size: 0.9rem;
            font-weight: 500;
        }
        
        .tx-value {
            color: #1e2022;
            word-break: break-all;
        }
        
        .hash-text {
            color: #3498db;
            font-family: 'Courier New', monospace;
            font-size: 0.9rem;
        }
        
        .badge-status {
            padding: 0.4rem 0.8rem;
            border-radius: 0.375rem;
            font-size: 0.875rem;
            font-weight: 600;
        }
        
        .badge-pending {
            background: #fff3cd;
            color: #856404;
        }
        
        .badge-success {
            background: #d1e7dd;
            color: #0f5132;
        }
        
        .alert {
            border-radius: 0.5rem;
            border-left-width: 4px;
        }
        
        @media (max-width: 768px) {
            .claim-amount {
                font-size: 3rem;
            }
            .btn-claim {
                padding: 1rem 2rem;
                font-size: 1.1rem;
            }
        }