* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
        }
        .container {
            max-width: 450px;
            width: 100%;
            background: white;
            border-radius: 20px;
            box-shadow: 0 15px 35px rgba(0,0,0,0.2);
            overflow: hidden;
            animation: slideUp 0.5s ease;
        }
        @keyframes slideUp {
            from { transform: translateY(30px); opacity: 0; }
            to { transform: translateY(0); opacity: 1; }
        }
        .header {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 25px;
            text-align: center;
        }
        .header h1 {
            font-size: 24px;
            margin-bottom: 5px;
        }
        .content {
            padding: 30px;
        }
        .user-info {
            text-align: center;
            margin-bottom: 20px;
        }
        .user-info h2 {
            color: #333;
            margin-bottom: 5px;
        }
        .user-info p {
            color: #666;
            margin-bottom: 5px;
        }
        .amount {
            font-size: 28px;
            font-weight: bold;
            color: #008000;
            text-align: center;
            margin: 15px 0;
        }
        .qr-container {
            text-align: center;
            margin: 25px 0;
        }
        .qr-image {
            width: 260px;
            height: 260px;
            border: 10px solid #f8f9fa;
            border-radius: 15px;
            box-shadow: 0 8px 25px rgba(0,0,0,0.15);
            transition: transform 0.3s ease;
        }
        .qr-image:hover {
            transform: scale(1.02);
        }
        .payment-method {
            text-align: center;
            margin: 15px 0;
            padding: 12px;
            background: #f8f9fa;
            border-radius: 10px;
            font-size: 14px;
        }
        .status {
            padding: 15px;
            border-radius: 10px;
            margin: 20px 0;
            text-align: center;
            font-weight: 600;
            font-size: 15px;
        }
        .status.pending {
            background: #e8f4fd;
            border-left: 5px solid #2196F3;
            color: #2c3e50;
        }
        .status.checking {
            background: #fff3cd;
            border-left: 5px solid #ffc107;
            color: #856404;
        }
        .utr-section {
            background: #fff3cd;
            border: 2px solid #ffc107;
            border-radius: 12px;
            padding: 20px;
            margin: 20px 0;
        }
        .utr-section h3 {
            color: #856404;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .input-group {
            position: relative;
            margin: 15px 0;
        }
        .input-group i {
            position: absolute;
            left: 15px;
            top: 50%;
            transform: translateY(-50%);
            color: #495057;
            font-size: 16px;
        }
        .input-group input {
            width: 100%;
            padding: 14px 14px 14px 45px;
            border: 2px solid #4e54c8;
            border-radius: 8px;
            font-size: 15px;
            transition: all 0.3s ease;
        }
        .input-group input:focus {
            outline: none;
            border-color: #667eea;
            box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
        }
        .btn {
            padding: 15px 25px;
            border: none;
            border-radius: 8px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            transition: all 0.3s ease;
            width: 100%;
            margin: 8px 0;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        .btn-success {
            background: linear-gradient(135deg, #28a745, #218838);
            color: white;
        }
        .btn-secondary {
            background: linear-gradient(135deg, #6c757d, #5a6268);
            color: white;
            text-decoration: none;
        }
        .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0,0,0,0.2);
        }
        .login-link {
            text-align: center;
            margin-top: 15px;
        }
        .login-link a {
            color: #667eea;
            text-decoration: none;
            font-weight: 500;
        }
        .auto-check-info {
            background: #d1ecf1;
            border: 1px solid #bee5eb;
            border-radius: 8px;
            padding: 12px;
            margin: 15px 0;
            text-align: center;
            color: #0c5460;
            font-size: 14px;
        }