:root {
    --binance-black: #0B0E11;
    --binance-dark: #1E2329;
    --binance-gray: #2B3139;
    --binance-light-gray: #474D57;
    --binance-green: #0ECB81;
    --binance-red: #F6465D;
    --binance-yellow: #F0B90B;
    --binance-text-primary: #EAECEF;
    --binance-text-secondary: #848E9C;
}

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

body {
    background: var(--binance-black);
    color: var(--binance-text-primary);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    min-height: 100vh;
}

.page-container {
    padding: 20px;
    max-width: 1400px;
    margin: 0 auto;
    min-height: calc(100vh - 150px);
}

/* Header styles */
.binance-header {
    background: var(--binance-dark);
    border-bottom: 1px solid var(--binance-gray);
}

/* Add your existing header styles here */
        .top-bar {
            background: var(--binance-dark);
            padding: 8px 20px;
            font-size: 12px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .top-bar a {
            color: var(--binance-text-secondary);
            text-decoration: none;
            margin: 0 10px;
            transition: color 0.2s;
        }

        .top-bar a:hover {
            color: var(--binance-yellow);
        }

        .main-nav {
            padding: 12px 20px;
            display: flex;
            align-items: center;
            gap: 30px;
        }

        .logo {
            font-size: 24px;
            font-weight: bold;
            color: var(--binance-yellow);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 8px;
            cursor: pointer;
        }

        .nav-links {
            display: flex;
            gap: 25px;
            list-style: none;
            align-items: center;
            flex: 1;
        }

        .nav-links a {
            color: var(--binance-text);
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            transition: color 0.2s;
            cursor: pointer;
        }

        .nav-links a:hover {
            color: var(--binance-yellow);
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .search-box {
            position: relative;
            width: 280px;
        }

        .search-box input {
            width: 100%;
            background: var(--binance-dark);
            border: 1px solid var(--binance-gray);
            color: var(--binance-text);
            padding: 8px 15px 8px 35px;
            border-radius: 4px;
            font-size: 13px;
        }

        .search-box i {
            position: absolute;
            left: 12px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--binance-text-secondary);
        }

        .btn-binance {
            background: var(--binance-yellow);
            color: #000;
            border: none;
            padding: 8px 20px;
            border-radius: 4px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s;
            font-size: 14px;
        }

        .btn-binance:hover {
            background: #f8d12f;
            transform: translateY(-1px);
        }

        .btn-outline {
            background: transparent;
            color: var(--binance-text);
            border: 1px solid var(--binance-gray);
        }

        .btn-outline:hover {
            background: var(--binance-gray);
        }

        .user-dropdown {
            position: relative;
        }

        .user-menu {
            display: none;
            position: absolute;
            top: calc(100% + 10px);
            right: 0;
            background: var(--binance-dark-2);
            border: 1px solid var(--binance-gray);
            border-radius: 8px;
            min-width: 200px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.3);
            z-index: 1000;
        }

        .user-menu.show {
            display: block;
        }

        .user-menu a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 20px;
            color: var(--binance-text);
            text-decoration: none;
            transition: background 0.2s;
            font-size: 14px;
        }

        .user-menu a:hover {
            background: var(--binance-gray);
        }

        /* Common Components */
.page-container {
    padding: 20px;
    max-width: 1400px;
    margin: 0 auto;
    min-height: calc(100vh - 150px);
}

.wallet-header {
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--binance-gray);
}

.wallet-header h2 {
    font-size: 28px;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.dashboard-card {
    background: var(--binance-dark);
    border: 1px solid var(--binance-gray);
    border-radius: 8px;
    padding: 25px;
}

.card-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th {
    text-align: left;
    padding: 12px 15px;
    border-bottom: 1px solid var(--binance-gray);
    color: var(--binance-text-secondary);
    font-weight: 600;
    font-size: 14px;
}

.data-table td {
    padding: 15px;
    border-bottom: 1px solid var(--binance-gray);
}

.data-table tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

.asset-item, .transaction-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
    border-bottom: 1px solid var(--binance-gray);
}

.asset-item:last-child, .transaction-item:last-child {
    border-bottom: none;
}

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

.asset-icon {
    width: 40px;
    height: 40px;
    background: var(--binance-gray);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--binance-text-secondary);
}

.empty-state i {
    font-size: 48px;
    margin-bottom: 15px;
    opacity: 0.5;
}

.stat-card {
    background: var(--binance-gray);
    padding: 20px;
    border-radius: 6px;
}

.feature-card {
    background: var(--binance-dark);
    border: 1px solid var(--binance-gray);
    padding: 25px;
    border-radius: 8px;
    text-align: center;
}

.hero-section {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 40px 0;
    gap: 40px;
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--binance-dark);
    padding: 30px;
    border-radius: 8px;
    max-width: 500px;
    width: 90%;
}
        /* Home Page */
        .hero-section {
            padding: 80px 20px;
            text-align: center;
            background: linear-gradient(135deg, var(--binance-dark-2) 0%, var(--binance-dark) 100%);
        }

        .hero-section h1 {
            font-size: 48px;
            margin-bottom: 20px;
            font-weight: 700;
        }

        .hero-section .highlight {
            color: var(--binance-yellow);
        }

        .hero-section p {
            font-size: 18px;
            color: var(--binance-text-secondary);
            margin-bottom: 30px;
        }

        .promo-banner {
            background: linear-gradient(90deg, #F0B90B 0%, #FFA500 100%);
            padding: 15px 20px;
            text-align: center;
            color: #000;
            font-weight: 600;
            margin-bottom: 40px;
        }

        .market-overview {
            padding: 40px 20px;
            max-width: 1400px;
            margin: 0 auto;
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 30px;
        }

        .market-stats {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin-bottom: 40px;
        }

        .stat-card {
            background: var(--binance-dark-2);
            padding: 25px;
            border-radius: 12px;
            border: 1px solid var(--binance-gray);
            transition: transform 0.2s, border-color 0.2s;
        }

        .stat-card:hover {
            transform: translateY(-2px);
            border-color: var(--binance-yellow);
        }

        .stat-card h3 {
            font-size: 14px;
            color: var(--binance-text-secondary);
            margin-bottom: 12px;
            font-weight: 500;
        }

        .stat-card .value {
            font-size: 32px;
            font-weight: bold;
            margin-bottom: 8px;
        }

        .stat-card .change {
            font-size: 14px;
        }

        .positive {
            color: var(--binance-green);
        }

        .negative {
            color: var(--binance-red);
        }

        .trading-table {
            background: var(--binance-dark-2);
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--binance-gray);
        }

        .table-header {
            display: flex;
            gap: 30px;
            padding: 20px 25px;
            border-bottom: 1px solid var(--binance-gray);
        }

        .tab {
            cursor: pointer;
            color: var(--binance-text-secondary);
            font-weight: 600;
            padding: 8px 0;
            border-bottom: 2px solid transparent;
            transition: all 0.2s;
            font-size: 14px;
        }

        .tab.active {
            color: var(--binance-yellow);
            border-bottom-color: var(--binance-yellow);
        }

        .tab:hover {
            color: var(--binance-text);
        }

        table {
            width: 100%;
            color: var(--binance-text);
        }

        thead {
            background: var(--binance-gray);
        }

        th {
            padding: 15px 20px;
            text-align: left;
            font-size: 12px;
            font-weight: 600;
            color: var(--binance-text-secondary);
            text-transform: uppercase;
        }

        td {
            padding: 18px 20px;
            border-bottom: 1px solid var(--binance-gray);
            font-size: 14px;
        }

        tbody tr {
            cursor: pointer;
            transition: background 0.2s;
        }

        tbody tr:hover {
            background: var(--binance-gray);
        }

        .pair-name {
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 600;
        }

        .star-icon {
            color: var(--binance-text-secondary);
            cursor: pointer;
            transition: color 0.2s;
        }

        .star-icon.active, .star-icon:hover {
            color: var(--binance-yellow);
        }

        /* Trading Page */
        .trading-layout {
            display: grid;
            grid-template-columns: 300px 1fr 350px;
            gap: 1px;
            background: var(--binance-gray);
            min-height: calc(100vh - 120px);
        }

        .trading-panel {
            background: var(--binance-dark-2);
            padding: 20px;
            overflow-y: auto;
        }

        .panel-header {
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 20px;
            color: var(--binance-text);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .order-book {
            font-size: 12px;
        }

        .order-book-header {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            color: var(--binance-text-secondary);
            margin-bottom: 15px;
            font-size: 11px;
            text-transform: uppercase;
            font-weight: 600;
        }

        .order-row {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            padding: 4px 0;
            position: relative;
            font-family: 'Courier New', monospace;
        }

        .order-row::before {
            content: '';
            position: absolute;
            right: 0;
            top: 0;
            bottom: 0;
            background: var(--binance-green);
            opacity: 0.08;
            transition: opacity 0.2s;
        }

        .order-row:hover::before {
            opacity: 0.15;
        }

        .ask-row::before {
            background: var(--binance-red);
        }

        .spread-indicator {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
            margin: 15px 0;
            border-top: 1px solid var(--binance-gray);
            border-bottom: 1px solid var(--binance-gray);
            font-size: 16px;
            font-weight: 700;
        }

        .chart-container {
            background: var(--binance-dark-2);
            padding: 20px;
            display: flex;
            flex-direction: column;
        }

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

        .pair-selector {
            font-size: 20px;
            font-weight: 700;
            color: var(--binance-text);
        }

        .chart-controls {
            display: flex;
            gap: 8px;
        }

        .timeframe-btn {
            background: transparent;
            color: var(--binance-text-secondary);
            border: 1px solid transparent;
            padding: 6px 12px;
            border-radius: 4px;
            cursor: pointer;
            font-size: 12px;
            font-weight: 600;
            transition: all 0.2s;
        }

        .timeframe-btn:hover {
            background: var(--binance-gray);
            color: var(--binance-text);
        }

        .timeframe-btn.active {
            background: var(--binance-gray);
            color: var(--binance-yellow);
            border-color: var(--binance-yellow);
        }

        .chart-wrapper {
            flex: 1;
            position: relative;
            min-height: 400px;
        }

        .order-form {
            background: var(--binance-dark-2);
            padding: 20px;
        }

        .order-tabs {
            display: flex;
            gap: 20px;
            margin-bottom: 25px;
            border-bottom: 1px solid var(--binance-gray);
        }

        .order-tab {
            padding: 12px 0;
            cursor: pointer;
            color: var(--binance-text-secondary);
            border-bottom: 3px solid transparent;
            font-size: 14px;
            font-weight: 600;
            transition: all 0.2s;
        }

        .order-tab:hover {
            color: var(--binance-text);
        }

        .order-tab.active {
            color: var(--binance-text);
            border-bottom-color: var(--binance-yellow);
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-group label {
            display: block;
            font-size: 12px;
            color: var(--binance-text-secondary);
            margin-bottom: 8px;
            font-weight: 600;
            text-transform: uppercase;
        }

        .form-group input, .form-group select {
            width: 100%;
            background: var(--binance-dark);
            border: 1px solid var(--binance-gray);
            color: var(--binance-text);
            padding: 12px;
            border-radius: 4px;
            font-size: 14px;
            transition: border-color 0.2s;
        }

        .form-group input:focus, .form-group select:focus {
            outline: none;
            border-color: var(--binance-yellow);
        }

        .slider-group {
            margin: 25px 0;
        }

        .slider {
            width: 100%;
            height: 6px;
            background: var(--binance-gray);
            border-radius: 3px;
            outline: none;
            -webkit-appearance: none;
        }

        .slider::-webkit-slider-thumb {
            -webkit-appearance: none;
            width: 18px;
            height: 18px;
            background: var(--binance-yellow);
            cursor: pointer;
            border-radius: 50%;
            box-shadow: 0 2px 4px rgba(0,0,0,0.3);
        }

        .percentage-options {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 8px;
            margin-top: 12px;
        }

        .percentage-btn {
            background: var(--binance-gray);
            color: var(--binance-text);
            border: none;
            padding: 8px;
            border-radius: 4px;
            cursor: pointer;
            font-size: 12px;
            font-weight: 600;
            transition: all 0.2s;
        }

        .percentage-btn:hover {
            background: var(--binance-gray-2);
            transform: translateY(-1px);
        }

        .btn-buy {
            width: 100%;
            background: var(--binance-green);
            color: #fff;
            border: none;
            padding: 14px;
            border-radius: 4px;
            font-weight: 700;
            cursor: pointer;
            margin-top: 20px;
            font-size: 15px;
            transition: all 0.2s;
        }

        .btn-buy:hover {
            opacity: 0.9;
            transform: translateY(-1px);
        }

        .btn-sell {
            background: var(--binance-red);
        }

        .balance-info {
            display: flex;
            justify-content: space-between;
            font-size: 12px;
            color: var(--binance-text-secondary);
            margin-top: 12px;
        }

        .balance-info span:last-child {
            color: var(--binance-text);
            font-weight: 600;
        }

        /* Dashboard */
        .wallet-header {
            background: var(--binance-dark-2);
            padding: 40px 30px;
            border-bottom: 1px solid var(--binance-gray);
        }

        .wallet-balance {
            font-size: 42px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .wallet-actions {
            display: flex;
            gap: 15px;
            margin-top: 25px;
        }

        .dashboard-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 25px;
            padding: 30px;
        }

        .dashboard-card {
            background: var(--binance-dark-2);
            border: 1px solid var(--binance-gray);
            border-radius: 12px;
            padding: 25px;
            transition: transform 0.2s, border-color 0.2s;
        }

        .dashboard-card:hover {
            transform: translateY(-2px);
            border-color: var(--binance-yellow);
        }

        .card-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 25px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .portfolio-value {
            font-size: 36px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .portfolio-change {
            font-size: 16px;
        }

        .asset-list {
            margin-top: 20px;
        }

        .asset-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
            border-bottom: 1px solid var(--binance-gray);
            transition: background 0.2s;
        }

        .asset-item:hover {
            background: var(--binance-gray);
            margin: 0 -10px;
            padding: 15px 10px;
            border-radius: 8px;
        }

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

        .asset-icon {
            width: 40px;
            height: 40px;
            background: var(--binance-gray);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
        }

        /* Auth Pages */
        .auth-container {
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: calc(100vh - 120px);
            padding: 40px 20px;
            background: linear-gradient(135deg, var(--binance-dark) 0%, var(--binance-dark-2) 100%);
        }

        .auth-box {
            background: var(--binance-dark-2);
            border: 1px solid var(--binance-gray);
            border-radius: 12px;
            padding: 50px;
            width: 100%;
            max-width: 450px;
            box-shadow: 0 8px 24px rgba(0,0,0,0.3);
        }

        .auth-box h2 {
            margin-bottom: 35px;
            text-align: center;
            font-size: 28px;
            font-weight: 700;
        }

        .auth-link {
            text-align: center;
            margin-top: 25px;
            color: var(--binance-text-secondary);
            font-size: 14px;
        }

        .auth-link a {
            color: var(--binance-yellow);
            text-decoration: none;
            font-weight: 600;
        }

        .auth-link a:hover {
            text-decoration: underline;
        }

        /* Recent Trades */
        .recent-trades {
            font-size: 12px;
            max-height: 300px;
            overflow-y: auto;
        }

        .trade-row {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            padding: 6px 0;
            font-family: 'Courier New', monospace;
        }

        .trade-row:hover {
            background: var(--binance-gray);
        }

        /* Mobile Responsive */
        @media (max-width: 992px) {
            .trading-layout {
                grid-template-columns: 1fr;
            }

            .nav-links {
                display: none;
            }

            .search-box {
                width: 200px;
            }

            .hero-section h1 {
                font-size: 32px;
            }

            .market-stats {
                grid-template-columns: 1fr;
            }

            .dashboard-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 576px) {
            .auth-box {
                padding: 30px 20px;
            }

            .main-nav {
                flex-wrap: wrap;
            }

            .search-box {
                order: 3;
                width: 100%;
                margin-top: 10px;
            }
        }

        .notification {
            position: fixed;
            top: 80px;
            right: 20px;
            background: var(--binance-dark-2);
            border: 1px solid var(--binance-yellow);
            border-radius: 8px;
            padding: 20px;
            max-width: 350px;
            z-index: 2000;
            animation: slideIn 0.3s ease;
            box-shadow: 0 4px 12px rgba(0,0,0,0.3);
        }

        @keyframes slideIn {
            from {
                transform: translateX(400px);
                opacity: 0;
            }
            to {
                transform: translateX(0);
                opacity: 1;
            }
        }

        .notification.success {
            border-color: var(--binance-green);
        }

        .notification.error {
            border-color: var(--binance-red);
        }

        .chart-placeholder {
            width: 100%;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--binance-dark);
            border-radius: 8px;
            color: var(--binance-text-secondary);
        }

        .open-orders-section {
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid var(--binance-gray);
        }

        .empty-state {
            text-align: center;
            padding: 60px 20px;
            color: var(--binance-text-secondary);
        }

        .empty-state i {
            font-size: 48px;
            margin-bottom: 20px;
            opacity: 0.5;
        }

        .transaction-item {
            display: flex;
            justify-content: space-between;
            padding: 15px 0;
            border-bottom: 1px solid var(--binance-gray);
        }

        .transaction-item:hover {
            background: var(--binance-gray);
            margin: 0 -10px;
            padding: 15px 10px;
            border-radius: 8px;
        }