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

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: #ffffff;
            min-height: 100vh;
            color: #000000;
            padding-bottom: 100px;
        }

        /* Navigation */
        nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 30px;
            background: #000000;
            border-bottom: 1px solid #e0e0e0;
            margin-bottom: 20px;
        }

        .back-btn {
            background: #ffffff;
            border: 2px solid #000000;
            border-radius: 50%;
            width: 50px;
            height: 50px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
        }

        .back-btn:hover {
            background: #f5f5f5;
            transform: scale(1.1);
        }

        .page-title {
            color: #ffffff;
            font-size: 20px;
            font-weight: 600;
        }

        .nav-spacer {
            width: 50px;
        }

        /* Main Content */
        .withdraw-container {
            max-width: 500px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Currency Selector */
        .currency-selector {
            background: #f9f9f9;
            border: 2px solid #e0e0e0;
            border-radius: 20px;
            padding: 20px;
            margin-bottom: 20px;
            text-align: center;
        }

        .currency-selector h3 {
            font-size: 16px;
            margin-bottom: 15px;
            color: #000000;
        }

        .currency-buttons {
            display: flex;
            gap: 10px;
            justify-content: center;
        }

        .currency-btn {
            background: #ffffff;
            border: 2px solid #000000;
            border-radius: 10px;
            padding: 10px 15px;
            cursor: pointer;
            font-size: 14px;
            font-weight: 600;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .currency-btn:hover {
            background: #f5f5f5;
            transform: translateY(-2px);
        }

        .currency-btn.selected {
            background: #000000;
            color: #ffffff;
        }

        /* Current Balance */
        .current-balance {
            background: #000000;
            color: #ffffff;
            border-radius: 20px;
            padding: 25px;
            margin-bottom: 30px;
            text-align: center;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        }

        .current-balance h3 {
            font-size: 16px;
            color: #cccccc;
            margin-bottom: 10px;
        }

        .current-balance .amount {
            font-size: 2.5rem;
            font-weight: bold;
            font-family: 'Courier New', monospace;
        }

        .available-balance {
            font-size: 14px;
            color: #cccccc;
            margin-top: 10px;
        }

        /* Withdraw Amount */
        .withdraw-amount {
            background: #ffffff;
            border: 2px solid #000000;
            border-radius: 20px;
            padding: 25px;
            margin-bottom: 30px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }

        .withdraw-amount h3 {
            font-size: 18px;
            margin-bottom: 20px;
            color: #000000;
        }

        .amount-input {
            width: 100%;
            padding: 15px;
            border: 2px solid #000000;
            border-radius: 10px;
            font-size: 24px;
            font-family: 'Courier New', monospace;
            text-align: center;
            background: #ffffff;
            color: #000000;
            outline: none;
            transition: all 0.3s ease;
        }

        .amount-input:focus {
            border-color: #333333;
            box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.1);
        }

        .amount-input.error {
            border-color: #ff0000;
            box-shadow: 0 0 0 3px rgba(255, 0, 0, 0.1);
        }

        .currency-symbol {
            position: absolute;
            left: 15px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 24px;
            color: #666666;
        }

        .input-wrapper {
            position: relative;
            margin-bottom: 20px;
        }

        .error-message {
            color: #ff0000;
            font-size: 14px;
            margin-top: 5px;
            display: none;
        }

        /* Quick Amount Buttons */
        .quick-amounts {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
            margin-bottom: 20px;
        }

        .quick-amount-btn {
            background: #ffffff;
            border: 2px solid #000000;
            border-radius: 10px;
            padding: 15px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            transition: all 0.3s ease;
        }

        .quick-amount-btn:hover {
            background: #000000;
            color: #ffffff;
            transform: translateY(-2px);
        }

        .quick-amount-btn.selected {
            background: #000000;
            color: #ffffff;
        }

        .quick-amount-btn:disabled {
            background: #f5f5f5;
            color: #cccccc;
            cursor: not-allowed;
            transform: none;
        }

        /* Withdrawal Methods */
        .withdrawal-methods {
            background: #ffffff;
            border: 2px solid #000000;
            border-radius: 20px;
            padding: 25px;
            margin-bottom: 30px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }

        .withdrawal-methods h3 {
            font-size: 18px;
            margin-bottom: 20px;
            color: #000000;
        }

        .withdrawal-method {
            display: flex;
            align-items: center;
            padding: 15px;
            border: 2px solid #e0e0e0;
            border-radius: 10px;
            margin-bottom: 10px;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .withdrawal-method:hover {
            border-color: #000000;
            background: #f9f9f9;
        }

        .withdrawal-method.selected {
            border-color: #000000;
            background: #000000;
            color: #ffffff;
        }

        .method-icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: #000000;
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 15px;
            font-size: 18px;
        }

        .withdrawal-method.selected .method-icon {
            background: #ffffff;
            color: #000000;
        }

        .method-info {
            flex: 1;
        }

        .method-name {
            font-weight: 600;
            margin-bottom: 5px;
        }

        .method-details {
            font-size: 14px;
            color: #666666;
        }

        .method-fee {
            font-size: 12px;
            color: #999999;
            margin-top: 2px;
        }

        .withdrawal-method.selected .method-details,
        .withdrawal-method.selected .method-fee {
            color: #cccccc;
        }

        .radio-check {
            width: 20px;
            height: 20px;
            border: 2px solid #000000;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .withdrawal-method.selected .radio-check {
            border-color: #ffffff;
        }

        .radio-check::after {
            content: '';
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: #000000;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .withdrawal-method.selected .radio-check::after {
            opacity: 1;
            background: #ffffff;
        }

        /* Summary */
        .summary {
            background: #f9f9f9;
            border: 2px solid #e0e0e0;
            border-radius: 20px;
            padding: 25px;
            margin-bottom: 30px;
        }

        .summary h3 {
            font-size: 18px;
            margin-bottom: 20px;
            color: #000000;
        }

        .summary-row {
            display: flex;
            justify-content: space-between;
            margin-bottom: 10px;
            padding: 5px 0;
        }

        .summary-row.total {
            border-top: 2px solid #000000;
            padding-top: 15px;
            margin-top: 15px;
            font-weight: bold;
            font-size: 18px;
        }

        .summary-row.receive {
            color: #009900;
            font-weight: bold;
        }

        /* Withdraw Button */
        .withdraw-btn {
            width: 100%;
            background: #000000;
            color: #ffffff;
            border: none;
            border-radius: 15px;
            padding: 18px;
            font-size: 18px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            margin-bottom: 20px;
        }

        .withdraw-btn:hover {
            background: #333333;
            transform: translateY(-2px);
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
        }

        .withdraw-btn:disabled {
            background: #cccccc;
            cursor: not-allowed;
            transform: none;
        }

        /* Loading Animation */
        .loading {
            display: inline-block;
            width: 20px;
            height: 20px;
            border: 3px solid #ffffff;
            border-radius: 50%;
            border-top-color: transparent;
            animation: spin 1s ease-in-out infinite;
        }

        @keyframes spin {
            to { transform: rotate(360deg); }
        }

        /* Success Message */
        .success-message {
            background: #000000;
            color: #ffffff;
            border-radius: 10px;
            padding: 15px;
            margin-bottom: 20px;
            text-align: center;
            display: none;
        }

        .success-message.show {
            display: block;
            animation: slideIn 0.5s ease-out;
        }

        @keyframes slideIn {
            from {
                opacity: 0;
                transform: translateY(-20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* Warning Message */
        .warning-message {
            background: #fff3cd;
            color: #856404;
            border: 2px solid #ffeaa7;
            border-radius: 10px;
            padding: 15px;
            margin-bottom: 20px;
            font-size: 14px;
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            nav {
                padding: 15px 20px;
            }

            .withdraw-container {
                padding: 0 15px;
            }

            .current-balance .amount {
                font-size: 2rem;
            }

            .amount-input {
                font-size: 20px;
            }

            .quick-amounts {
                grid-template-columns: repeat(2, 1fr);
            }

            .currency-buttons {
                flex-direction: column;
                gap: 8px;
            }

            .currency-btn {
                width: 100%;
                justify-content: center;
            }
        }