* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        body {
            background-color: #f5f7fa;
            color: #333;
            line-height: 1.6;
        }

        .container {
            max-width: 400px;
            margin: 0 auto;
            background: white;
            min-height: 100vh;
            box-shadow: 0 0 15px rgba(0, 0, 0, 0.1);
            position: relative;
            overflow: hidden;
        }

        /* Header Styles */
        header {
            background: linear-gradient(135deg, #0a7c4d 0%, #2ecc71 100%);
            color: white;
            padding: 20px;
            border-radius: 0 0 20px 20px;
        }

        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
        }

        .logo {
            font-weight: 700;
            font-size: 24px;
            display: flex;
            align-items: center;
        }

        .logo span {
            margin-left: 8px;
        }

        .user-actions {
            display: flex;
            gap: 15px;
        }

        .user-actions i {
            font-size: 20px;
        }

        .balance-section {
            text-align: center;
            padding: 10px 0;
        }

        .balance-label {
            font-size: 14px;
            opacity: 0.9;
            margin-bottom: 5px;
        }

        .balance-container {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            margin-bottom: 5px;
        }

        .balance-amount {
            font-size: 32px;
            font-weight: 700;
        }

        .toggle-balance-icon {
            font-size: 20px;
            cursor: pointer;
            opacity: 0.9;
            transition: opacity 0.3s ease;
        }

        .toggle-balance-icon:hover {
            opacity: 1;
        }

        .balance-amount.hidden {
            letter-spacing: 3px;
        }

        .balance-amount.hidden::after {
            content: '••••••••••••';
            font-size: 20px;
        }

        .balance-amount.hidden {
            font-size: 0;
        }

        .balance-amount.hidden::after {
            font-size: 32px;
        }

        .account-number {
            font-size: 14px;
            opacity: 0.9;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 5px;
        }

        /* Page Container */
        .page-container {
            padding-bottom: 70px;
            display: none;
        }

        .page-container.active {
            display: block;
        }

        /* Quick Actions */
        .quick-actions {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 15px;
            padding: 20px;
        }

        .action-btn {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
        }

        .action-icon {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: #eafaf1;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #27ae60;
            font-size: 20px;
        }

        .action-label {
            font-size: 12px;
            text-align: center;
        }

        /* Section Titles */
        .section-title {
            padding: 15px 20px 5px;
            font-weight: 600;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .view-all {
            color: #27ae60;
            font-size: 14px;
            cursor: pointer;
        }

        /* Transactions */
        .transactions {
            padding: 10px 20px;
        }

        .transaction {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
            border-bottom: 1px solid #f0f0f0;
        }

        .transaction-info {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .transaction-icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: #f8f9fa;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #27ae60;
        }

        .transaction-details h4 {
            font-size: 15px;
            margin-bottom: 4px;
        }

        .transaction-details p {
            font-size: 12px;
            color: #888;
        }

        .transaction-amount {
            font-weight: 600;
        }

        .positive {
            color: #27ae60;
        }

        .negative {
            color: #e74c3c;
        }

        /* Navigation */
        .nav-bottom {
            position: fixed;
            bottom: 0;
            width: 100%;
            max-width: 400px;
            background: white;
            display: flex;
            justify-content: space-around;
            padding: 15px;
            border-top: 1px solid #eee;
            z-index: 100;
        }

        .nav-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 5px;
            color: #888;
            font-size: 12px;
            cursor: pointer;
        }

        .nav-item.active {
            color: #27ae60;
        }

        .nav-item i {
            font-size: 20px;
        }

        /* Promo Banner */
        .promo-banner {
            margin: 15px 20px;
            background: linear-gradient(to right, #27ae60, #2ecc71);
            border-radius: 12px;
            padding: 15px;
            color: white;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .promo-content h3 {
            font-size: 16px;
            margin-bottom: 5px;
        }

        .promo-content p {
            font-size: 13px;
            opacity: 0.9;
        }

        .promo-button {
            background: white;
            color: #27ae60;
            border: none;
            padding: 8px 15px;
            border-radius: 20px;
            font-weight: 600;
            cursor: pointer;
        }

        /* Wallet Page */
        .cards-container {
            padding: 20px;
        }

        .card {
            background: linear-gradient(135deg, #0a7c4d 0%, #2ecc71 100%);
            border-radius: 15px;
            padding: 20px;
            color: white;
            margin-bottom: 20px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }

        .card-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 30px;
        }

        .card-chip {
            font-size: 24px;
        }

        .card-number {
            font-size: 18px;
            letter-spacing: 2px;
            margin-bottom: 30px;
            text-align: center;
        }

        .card-bottom {
            display: flex;
            justify-content: space-between;
        }

        .card-detail {
            display: flex;
            flex-direction: column;
        }

        .card-label {
            font-size: 12px;
            opacity: 0.8;
        }

        .card-value {
            font-size: 14px;
            font-weight: 600;
        }

        /* Insights Page */
        .insights-container {
            padding: 20px;
        }

        .chart-container {
            background: white;
            border-radius: 12px;
            padding: 15px;
            margin-bottom: 20px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
        }

        .chart-title {
            font-size: 16px;
            margin-bottom: 15px;
            color: #333;
        }

        .chart {
            height: 150px;
            background: #f9f9f9;
            border-radius: 8px;
            display: flex;
            align-items: flex-end;
            justify-content: space-around;
            padding: 10px;
        }

        .chart-bar {
            width: 30px;
            background: #27ae60;
            border-radius: 4px 4px 0 0;
            position: relative;
        }

        .chart-label {
            position: absolute;
            bottom: -25px;
            left: 0;
            right: 0;
            text-align: center;
            font-size: 12px;
            color: #888;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
        }

        .stat-box {
            background: white;
            border-radius: 12px;
            padding: 15px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
        }

        .stat-title {
            font-size: 14px;
            color: #888;
            margin-bottom: 8px;
        }

        .stat-value {
            font-size: 18px;
            font-weight: 700;
            color: #27ae60;
        }

        /* Settings Page */
        .settings-container {
            padding: 10px 0;
        }

        .settings-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
            border-bottom: 1px solid #f0f0f0;
        }

        .settings-info {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .settings-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: #eafaf1;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #27ae60;
        }

        .settings-details h4 {
            font-size: 16px;
            margin-bottom: 4px;
        }

        .settings-details p {
            font-size: 12px;
            color: #888;
        }

        .toggle-switch {
            position: relative;
            display: inline-block;
            width: 50px;
            height: 24px;
        }

        .toggle-switch input {
            opacity: 0;
            width: 0;
            height: 0;
        }

        .slider {
            position: absolute;
            cursor: pointer;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: #ccc;
            transition: .4s;
            border-radius: 24px;
        }

        .slider:before {
            position: absolute;
            content: "";
            height: 16px;
            width: 16px;
            left: 4px;
            bottom: 4px;
            background-color: white;
            transition: .4s;
            border-radius: 50%;
        }

        input:checked+.slider {
            background-color: #27ae60;
        }

        input:checked+.slider:before {
            transform: translateX(26px);
        }