/* ===================================
   CryptoTrade Pro - Dashboard Stylesheet
   Light Theme with Orange Accents
   =================================== */

/* CSS Variables - Light Theme */
:root {
    /* Colors - Light Theme */
    --color-primary: #FF6B35;
    --color-primary-dark: #E55A2B;
    --color-primary-light: #FF8C42;
    --color-bg-primary: #FFFFFF;
    --color-bg-secondary: #F8F9FA;
    --color-bg-tertiary: #F1F3F5;
    --color-bg-hover: #E9ECEF;
    --color-text-primary: #1A1F26;
    --color-text-secondary: #6B7280;
    --color-text-muted: #A0A8B5;
    --color-border: #E5E7EB;
    --color-border-dark: #D1D5DB;
    --color-success: #10B981;
    --color-warning: #F59E0B;
    --color-danger: #EF4444;
    --color-info: #3B82F6;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    
    /* Layout */
    --sidebar-width: 260px;
    --header-height: 70px;
    
    /* Effects */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Safe Area Insets for Notched Devices */
    --safe-area-inset-top: env(safe-area-inset-top);
    --safe-area-inset-right: env(safe-area-inset-right);
    --safe-area-inset-bottom: env(safe-area-inset-bottom);
    --safe-area-inset-left: env(safe-area-inset-left);
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    height: 100%;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-secondary);
    min-height: 100%;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

/* Dashboard Layout */
.dashboard-wrapper {
    display: flex;
    min-height: 100vh;
    position: relative;
}

/* Mobile Overlay */
.mobile-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.mobile-overlay.active {
    display: block;
    opacity: 1;
}

/* Sidebar */
.dashboard-sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: var(--color-bg-primary);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.sidebar-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
    flex-shrink: 0;
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-xl);
    font-weight: 700;
}

.logo-text {
    font-size: var(--font-size-lg);
    font-weight: 400;
    color: var(--color-text-primary);
}

.logo-text strong {
    font-weight: 700;
    color: var(--color-primary);
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: var(--spacing-md) 0;
}

.sidebar-nav::-webkit-scrollbar {
    width: 6px;
}

.sidebar-nav::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar-nav::-webkit-scrollbar-thumb {
    background: var(--color-border-dark);
    border-radius: 3px;
}

.sidebar-nav::-webkit-scrollbar-thumb:hover {
    background: var(--color-text-muted);
}

.nav-section {
    margin-bottom: var(--spacing-lg);
}

.nav-section-title {
    font-size: var(--font-size-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-text-muted);
    padding: 0 var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.nav-menu {
    list-style: none;
}

.nav-item {
    margin-bottom: 4px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.75rem var(--spacing-md);
    margin: 0 var(--spacing-sm);
    color: var(--color-text-secondary);
    text-decoration: none;
    border-radius: 10px;
    transition: all var(--transition-base);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.nav-link:hover {
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
}

.nav-link.active {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    color: white;
    box-shadow: 0 4px 12px rgba(255, 107, 53, 0.25);
}

.nav-icon {
    font-size: var(--font-size-lg);
    width: 20px;
    text-align: center;
}

.nav-badge {
    margin-left: auto;
    background: var(--color-danger);
    color: white;
    font-size: var(--font-size-xs);
    padding: 2px 8px;
    border-radius: 12px;
    font-weight: 600;
}

.sidebar-footer {
    padding: var(--spacing-md);
    border-top: 1px solid var(--color-border);
    flex-shrink: 0;
}

.logout-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    width: 100%;
    padding: 0.875rem;
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

.logout-btn:hover {
    background: var(--color-danger);
    color: white;
    border-color: var(--color-danger);
}

/* Main Content */
.dashboard-main {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header */
.dashboard-header {
    position: sticky;
    top: 0;
    height: var(--header-height);
    background: var(--color-bg-primary);
    border-bottom: 1px solid var(--color-border);
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: var(--font-size-2xl);
    color: var(--color-text-primary);
    cursor: pointer;
    padding: var(--spacing-xs);
}

.header-search {
    position: relative;
    width: 400px;
}

.search-input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 3rem;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    font-size: var(--font-size-sm);
    color: var(--color-text-primary);
    transition: all var(--transition-base);
}

.search-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
    font-size: var(--font-size-lg);
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.header-action {
    position: relative;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base);
    color: var(--color-text-secondary);
}

.header-action:hover {
    background: var(--color-bg-hover);
    color: var(--color-text-primary);
}

.notification-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    background: var(--color-danger);
    color: white;
    font-size: 10px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    border: 2px solid var(--color-bg-primary);
}

.header-user-menu {
    position: relative;
}

.header-user {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.5rem 0.75rem;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    cursor: pointer;
    transition: all var(--transition-base);
}

.header-user:hover {
    background: var(--color-bg-hover);
}

.header-avatar {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: var(--font-size-sm);
    flex-shrink: 0;
}

.user-details {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    min-width: 0;
}

.user-name-header {
    font-weight: 600;
    font-size: var(--font-size-sm);
    color: var(--color-text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 150px;
}

.user-role-header {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
}

.dropdown-arrow {
    font-size: 10px;
    color: var(--color-text-muted);
    transition: transform var(--transition-base);
    margin-left: var(--spacing-xs);
}

.header-user:hover .dropdown-arrow {
    color: var(--color-text-primary);
}

/* User Dropdown */
.user-dropdown {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    width: 280px;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    box-shadow: var(--shadow-xl);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-base);
    z-index: 1000;
}

.user-dropdown.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-header {
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.dropdown-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: var(--font-size-lg);
    flex-shrink: 0;
}

.dropdown-user-info {
    flex: 1;
    min-width: 0;
}

.dropdown-name {
    font-weight: 700;
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.dropdown-email {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.dropdown-divider {
    height: 1px;
    background: var(--color-border);
    margin: 0.5rem 0;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.75rem var(--spacing-md);
    color: var(--color-text-primary);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: all var(--transition-base);
}

.dropdown-item:hover {
    background: var(--color-bg-secondary);
}

.dropdown-icon {
    font-size: var(--font-size-lg);
    width: 20px;
    text-align: center;
}

.logout-item {
    color: var(--color-danger);
}

.logout-item:hover {
    background: rgba(239, 68, 68, 0.1);
}

/* Content */
.dashboard-content {
    flex: 1;
    padding: var(--spacing-lg);
}

.page-header {
    margin-bottom: var(--spacing-lg);
}

.page-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
}

.page-breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.breadcrumb-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition-base);
}

.breadcrumb-link:hover {
    color: var(--color-primary);
}

/* Cards */
.card {
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.card-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0;
}

.card-body {
    color: var(--color-text-secondary);
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.stat-card {
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    font-weight: 500;
}

.stat-icon {
    width: 45px;
    height: 45px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
}

.stat-icon.primary {
    background: rgba(255, 107, 53, 0.1);
    color: var(--color-primary);
}

.stat-icon.success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
}

.stat-icon.warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--color-warning);
}

.stat-icon.info {
    background: rgba(59, 130, 246, 0.1);
    color: var(--color-info);
}

.stat-value {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
}

.stat-change {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.stat-change.positive {
    color: var(--color-success);
}

.stat-change.negative {
    color: var(--color-danger);
}

/* Table */
.table-container {
    overflow-x: auto;
}

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

.table thead {
    background: var(--color-bg-secondary);
    border-bottom: 2px solid var(--color-border);
}

.table th {
    padding: 0.875rem 1rem;
    text-align: left;
    font-size: var(--font-size-sm);
    font-weight: 700;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.table td {
    padding: 1rem;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text-primary);
    font-size: var(--font-size-sm);
}

.table tbody tr:hover {
    background: var(--color-bg-secondary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 0.75rem 1.5rem;
    font-size: var(--font-size-sm);
    font-weight: 600;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 107, 53, 0.3);
}

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

.btn-outline:hover {
    background: var(--color-bg-secondary);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: var(--font-size-xs);
}

/* Badge */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: 6px;
}

.badge-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--color-warning);
}

.badge-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--color-danger);
}

.badge-primary {
    background: rgba(255, 107, 53, 0.1);
    color: var(--color-primary);
}

/* Footer */
.dashboard-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
    background: var(--color-bg-primary);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition-base);
}

.footer-link:hover {
    color: var(--color-primary);
}

/* Dashboard Grids */
.dashboard-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.transactions-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

/* Trading Page */
.trading-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.trading-controls {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    align-items: center;
}

.trading-select {
    padding: 0.5rem 1rem;
    border: 1.5px solid var(--color-border);
    border-radius: 10px;
    font-size: 0.875rem;
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
    min-width: 150px;
}

.trading-tabs {
    display: flex;
    gap: 0.5rem;
}

.trading-chart-placeholder {
    height: 400px;
    min-height: 300px;
}

/* Deposit Page */
.deposit-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 1.5rem;
}

.crypto-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.75rem;
}

.crypto-select-btn {
    padding: 1rem;
    background: var(--color-bg-secondary);
    border: 2px solid var(--color-border);
    border-radius: 12px;
    cursor: pointer;
    transition: all var(--transition-base);
    text-align: center;
}

.crypto-select-btn:hover {
    border-color: var(--color-primary);
    background: var(--color-bg-tertiary);
}

.crypto-select-btn.active {
    border-color: var(--color-primary);
    background: rgba(255, 107, 53, 0.1);
}

/* Trades Form Grid */
.trades-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

/* Withdraw Page */
.withdraw-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 1.5rem;
}

/* Profile Page */
.profile-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 1.5rem;
}

.profile-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

/* Security Page */
.security-grid {
    display: grid;
    gap: 1.5rem;
}

.security-2fa-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.security-backup-codes-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.security-api-actions {
    display: flex;
    gap: 0.5rem;
}

/* Chart Placeholder */
.chart-placeholder {
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-secondary);
    border-radius: 8px;
    min-height: 250px;
}

/* Portfolio Performance Tabs */
.portfolio-tabs {
    display: flex;
    gap: 0.5rem;
}

.portfolio-card .card-header {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

/* Responsive */
@media (max-width: 1200px) {
    :root {
        --sidebar-width: 240px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    }
}

@media (max-width: 1024px) {
    .header-search {
        width: 300px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
}

@media (max-width: 768px) {
    :root {
        --sidebar-width: 280px;
        --header-height: 60px;
        --spacing-lg: 1.5rem;
        --font-size-base: 1rem;
    }
    
    /* Sidebar Mobile Behavior */
    .dashboard-sidebar {
        position: fixed;
        transform: translateX(-100%);
        transition: transform var(--transition-base);
        box-shadow: none;
        z-index: 1000;
        height: 100vh;
    }
    
    .dashboard-sidebar.active {
        transform: translateX(0);
        box-shadow: var(--shadow-xl);
    }
    
    /* Mobile Overlay */
    .mobile-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 999;
    }
    
    .mobile-overlay.active {
        display: block;
    }
    
    /* Main Content */
    .dashboard-main {
        margin-left: 0;
        width: 100%;
    }
    
    /* Mobile Menu Button */
    .mobile-menu-btn {
        display: flex;
        font-size: 1.5rem;
        padding: 0.5rem;
    }
    
    /* Header Mobile Adjustments */
    .dashboard-header {
        padding: var(--spacing-sm) var(--spacing-md);
        height: 60px;
    }
    
    .header-left {
        gap: var(--spacing-sm);
        flex: 1;
    }
    
    .header-search {
        display: none;
    }
    
    .header-right {
        gap: var(--spacing-sm);
    }
    
    .header-action {
        width: 36px;
        height: 36px;
        font-size: 1.1rem;
    }
    
    .header-user .user-details {
        display: none;
    }
    
    .header-avatar {
        width: 36px;
        height: 36px;
        font-size: var(--font-size-sm);
    }
    
    .dropdown-arrow {
        display: none;
    }
    
    /* Content Area */
    .dashboard-content {
        padding: var(--spacing-md);
        padding-top: calc(60px + var(--spacing-md));
    }
    
    /* Page Header */
    .page-header {
        margin-bottom: var(--spacing-md);
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .page-title {
        font-size: 1.5rem;
        font-weight: 700;
    }
    
    .page-breadcrumb {
        font-size: 0.875rem;
    }
    
    /* Stats Grid */
    .stats-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .stat-card {
        padding: var(--spacing-md);
    }
    
    .stat-value {
        font-size: 1.75rem;
        font-weight: 700;
    }
    
    .stat-label {
        font-size: 0.9rem;
    }
    
    .stat-change {
        font-size: 0.875rem;
    }
    
    /* Charts Section */
    .charts-section {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    /* Dashboard Grids */
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    
    .transactions-grid {
        grid-template-columns: 1fr;
    }
    
    /* Trading Page */
    .trading-grid {
        grid-template-columns: 1fr;
    }
    
    .trading-controls {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
    }
    
    .trading-select {
        width: 100%;
    }
    
    .trading-tabs {
        width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        -ms-overflow-style: none;
        padding-bottom: 0.25rem;
    }
    
    .trading-tabs::-webkit-scrollbar {
        display: none;
    }
    
    .trading-tabs .btn {
        flex-shrink: 0;
        white-space: nowrap;
    }
    
    .trading-chart-placeholder {
        height: 300px;
        min-height: 250px;
    }
    
    /* Deposit Page */
    .deposit-grid {
        grid-template-columns: 1fr;
    }
    
    .crypto-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    /* Trades Form Grid */
    .trades-form-grid {
        grid-template-columns: 1fr;
    }
    
    /* Portfolio Performance */
    .portfolio-card .card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
    
    .portfolio-tabs {
        width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        -ms-overflow-style: none;
        padding-bottom: 0.25rem;
    }
    
    .portfolio-tabs::-webkit-scrollbar {
        display: none;
    }
    
    .portfolio-tabs .btn {
        flex-shrink: 0;
        white-space: nowrap;
    }
    
    /* Withdraw Page */
    .withdraw-grid {
        grid-template-columns: 1fr;
    }
    
    /* Profile Page */
    .profile-grid {
        grid-template-columns: 1fr;
    }
    
    .profile-form-grid {
        grid-template-columns: 1fr;
    }
    
    /* Security Page */
    .security-2fa-grid {
        grid-template-columns: 1fr;
    }
    
    .security-backup-codes-grid {
        grid-template-columns: 1fr;
    }
    
    .security-api-actions {
        flex-direction: column;
    }
    
    /* Card Responsive Adjustments */
    .card {
        overflow: hidden;
    }
    
    .card-body {
        overflow-x: hidden;
    }
    
    .card-header {
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    
    /* Prevent long text overflow in cards */
    .card-body * {
        max-width: 100%;
    }
    
    /* Monospace text wrapping (API keys, addresses, etc.) */
    [style*="font-family: monospace"] {
        word-break: break-all;
        overflow-wrap: break-word;
    }
    
    /* Crypto items and similar flex containers */
    .card-body > div > div[style*="justify-content: space-between"] {
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    
    /* Ensure text doesn't overflow in small containers */
    .card-body div[style*="text-align: right"] {
        min-width: fit-content;
    }
    
    /* Chart Placeholder */
    .chart-placeholder {
        height: 250px;
        min-height: 200px;
    }
    
    /* Recent Activity */
    .activity-item {
        padding: var(--spacing-md);
    }
    
    /* Tables */
    .table-container {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        -ms-overflow-style: none;
        margin: 0 calc(var(--spacing-md) * -1);
        padding: 0 var(--spacing-md);
    }
    
    .table-container::-webkit-scrollbar {
        display: none;
    }
    
    .table {
        min-width: 500px;
        font-size: 0.8125rem;
    }
    
    .table th {
        padding: 0.75rem 0.5rem;
        font-size: 0.75rem;
        white-space: nowrap;
    }
    
    .table td {
        padding: 0.75rem 0.5rem;
        font-size: 0.8125rem;
        white-space: nowrap;
    }
    
    .data-table-container {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        margin: 0 calc(var(--spacing-md) * -1);
        padding: 0 var(--spacing-md);
    }
    
    .data-table {
        min-width: 600px;
        font-size: 0.875rem;
    }
    
    .data-table th,
    .data-table td {
        padding: var(--spacing-sm);
        font-size: 0.875rem;
        white-space: nowrap;
    }
    
    /* Cards */
    .card {
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-md);
    }
    
    .card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .card-header h2,
    .card-header h3 {
        font-size: 1.125rem;
    }
    
    .card-actions {
        width: 100%;
        justify-content: flex-start;
    }
    
    /* Quick Actions */
    .quick-actions {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }
    
    .action-card {
        padding: var(--spacing-md);
    }
    
    .action-card h3 {
        font-size: 0.9rem;
    }
    
    /* Forms */
    .form-row {
        flex-direction: column;
    }
    
    .form-group {
        width: 100%;
    }
    
    /* Buttons */
    .btn {
        padding: 0.75rem 1.25rem;
        font-size: 0.9375rem;
        width: 100%;
    }
    
    .btn-group {
        flex-direction: column;
        width: 100%;
    }
    
    .btn-group .btn {
        width: 100%;
    }
    
    /* Footer */
    .dashboard-footer {
        padding: var(--spacing-md);
        font-size: 0.875rem;
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
    
    .footer-links {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    /* User Dropdown */
    .user-dropdown {
        position: fixed;
        top: auto;
        bottom: 0;
        left: 0;
        right: 0;
        width: 100%;
        max-width: 100%;
        border-radius: 20px 20px 0 0;
        transform: translateY(100%);
    }
    
    .user-dropdown.active {
        transform: translateY(0);
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-sm: 0.75rem;
        --spacing-md: 1rem;
        --spacing-lg: 1.25rem;
        --font-size-xs: 0.75rem;
        --font-size-sm: 0.875rem;
        --font-size-base: 0.9375rem;
    }
    
    /* Header */
    .dashboard-header {
        padding: 0.5rem 1rem;
        height: 56px;
    }
    
    .header-action {
        width: 34px;
        height: 34px;
        font-size: 1rem;
    }
    
    .notification-badge {
        font-size: 9px;
        width: 16px;
        height: 16px;
    }
    
    .page-title {
        font-size: 1.25rem;
    }
    
    /* Content */
    .dashboard-content {
        padding: 1rem;
        padding-top: calc(56px + 1rem);
    }
    
    /* Stats */
    .stats-grid {
        gap: 0.75rem;
    }
    
    .stat-card {
        padding: 1rem;
    }
    
    .stat-icon {
        width: 40px;
        height: 40px;
        font-size: 1.25rem;
    }
    
    .stat-value {
        font-size: 1.5rem;
    }
    
    .stat-label {
        font-size: 0.8125rem;
    }
    
    .stat-change {
        font-size: 0.8125rem;
    }
    
    /* Quick Actions */
    .quick-actions {
        grid-template-columns: 1fr;
    }
    
    /* Portfolio Tabs - Better spacing on small screens */
    .portfolio-tabs .btn-sm {
        padding: 0.5rem 0.875rem;
        font-size: 0.8125rem;
    }
    
    /* Trading & Deposit - Smaller screens */
    .trading-tabs .btn-sm {
        padding: 0.5rem 0.875rem;
        font-size: 0.8125rem;
    }
    
    .trading-chart-placeholder {
        height: 250px;
        min-height: 200px;
    }
    
    .crypto-grid {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
    
    .crypto-select-btn {
        padding: 0.875rem;
    }
    
    /* Profile Form - Single column on small screens */
    .profile-form-grid {
        grid-template-columns: 1fr;
    }
    
    /* Security Backup Codes - Single column */
    .security-backup-codes-grid {
        grid-template-columns: 1fr;
    }
    
    /* API Actions - Full width buttons */
    .security-api-actions {
        flex-direction: column;
    }
    
    .security-api-actions .btn {
        width: 100%;
    }
    
    /* API Key Display - Better mobile layout */
    .card-body > div > div[style*="display: flex"] {
        flex-direction: column !important;
        align-items: flex-start !important;
        gap: 1rem !important;
    }
    
    /* Card Headers */
    .card-header {
        gap: 0.5rem;
    }
    
    .card-header h3 {
        font-size: 1rem;
    }
    
    /* Tables - Smaller text on very small screens */
    .table {
        min-width: 450px;
        font-size: 0.75rem;
    }
    
    .table th {
        padding: 0.625rem 0.375rem;
        font-size: 0.6875rem;
    }
    
    .table td {
        padding: 0.625rem 0.375rem;
        font-size: 0.75rem;
    }
    
    /* Card Content Overflow */
    .card {
        overflow: hidden;
    }
    
    .card-body {
        overflow-x: hidden;
        padding: 1rem;
    }
    
    /* Chart Placeholder - Even smaller on tiny screens */
    .chart-placeholder {
        height: 200px;
        min-height: 180px;
    }
    
    /* Buttons */
    .btn {
        padding: 0.625rem 1rem;
        font-size: 0.875rem;
    }
    
    .btn-sm {
        padding: 0.5rem 0.875rem;
        font-size: 0.8125rem;
    }
    
    /* Forms */
    .form-group {
        margin-bottom: 1rem;
    }
    
    .form-control {
        padding: 0.625rem 0.875rem;
        font-size: 0.875rem;
    }
    
    .form-label {
        font-size: 0.875rem;
        margin-bottom: 0.5rem;
    }
    
    /* Cards */
    .card {
        padding: 1rem;
        border-radius: 10px;
    }
    
    .card-header h2,
    .card-header h3 {
        font-size: 1rem;
    }
    
    /* Tables */
    .data-table {
        font-size: 0.8125rem;
    }
    
    .data-table th,
    .data-table td {
        padding: 0.625rem 0.5rem;
        font-size: 0.8125rem;
    }
    
    /* Activity Items */
    .activity-item {
        padding: 0.75rem;
    }
    
    .activity-icon {
        width: 36px;
        height: 36px;
        font-size: 1rem;
    }
    
    .activity-title {
        font-size: 0.875rem;
    }
    
    .activity-time {
        font-size: 0.75rem;
    }
    
    /* Sidebar */
    .sidebar-header {
        padding: 1rem;
    }
    
    .sidebar-logo {
        font-size: 1.125rem;
    }
    
    .nav-link {
        padding: 0.625rem 1rem;
        font-size: 0.875rem;
    }
    
    /* Modals */
    .modal-content {
        margin: 1rem;
        max-width: calc(100% - 2rem);
        padding: 1rem;
    }
    
    .modal-header h2 {
        font-size: 1.125rem;
    }
    
    /* Footer */
    .dashboard-footer {
        padding: 1rem;
        font-size: 0.8125rem;
    }
}

/* Landscape Mobile */
@media (max-width: 768px) and (orientation: landscape) {
    .dashboard-sidebar {
        width: 240px;
    }
    
    .dashboard-content {
        padding: var(--spacing-sm) var(--spacing-md);
    }
}

/* Touch Device Optimizations */
@media (hover: none) and (pointer: coarse) {
    .btn,
    .nav-link,
    .header-notification,
    .header-user {
        min-height: 44px;
        min-width: 44px;
    }
    
    .data-table th,
    .data-table td {
        padding: var(--spacing-md);
    }
}