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

/* Prevent horizontal overflow but allow vertical scroll */
html, body {
    overflow-x: hidden;
    overflow-y: auto;
    width: 100%;
    max-width: 100vw;
    height: auto;
    min-height: 100%;
}

#app {
    overflow-x: hidden;
    width: 100%;
}

/* Prevent double-tap zoom */
* {
    touch-action: manipulation;
}

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --success: #10b981;
    --success-dark: #059669;
    --danger: #ef4444;
    --danger-dark: #dc2626;
    --warning: #f59e0b;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --sidebar-width: 260px;
    --header-height: 60px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--gray-100);
    color: var(--gray-800);
    line-height: 1.5;
}

.page {
    display: none;
}

.page.active {
    display: block;
}

/* Login Page */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 20px;
}

.login-box {
    background: white;
    border-radius: 16px;
    padding: 40px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-header i {
    font-size: 48px;
    color: var(--primary);
    margin-bottom: 16px;
}

.login-header h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--gray-800);
}

.login-header p {
    color: var(--gray-500);
    font-size: 14px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--gray-700);
    font-size: 14px;
}

.form-group label i {
    margin-right: 8px;
    color: var(--gray-400);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--gray-200);
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.2s;
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
}

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

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-dark);
}

.btn-success {
    background: var(--success);
    color: white;
}

.btn-success:hover {
    background: var(--success-dark);
}

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

.btn-danger:hover {
    background: var(--danger-dark);
}

.btn-secondary {
    background: var(--gray-200);
    color: var(--gray-700);
}

.btn-secondary:hover {
    background: var(--gray-300);
}

.btn-block {
    width: 100%;
}

.btn-sm {
    padding: 8px 12px;
    font-size: 12px;
}

.btn-group {
    display: flex;
    gap: 10px;
}

.error-message {
    color: var(--danger);
    font-size: 14px;
    margin-top: 16px;
    text-align: center;
}

/* Main App Layout */
#main-app {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--gray-900);
    color: white;
    display: flex;
    flex-direction: column;
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    z-index: 100;
}

.sidebar-header {
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid var(--gray-700);
}

.sidebar-header i {
    font-size: 28px;
    color: var(--primary);
}

.sidebar-header span {
    font-size: 20px;
    font-weight: 700;
}

.sidebar-menu {
    list-style: none;
    padding: 16px 0;
    flex: 1;
    overflow-y: auto;
}

.sidebar-menu li {
    padding: 14px 24px;
    display: flex;
    align-items: center;
    gap: 14px;
    cursor: pointer;
    transition: all 0.2s;
    color: var(--gray-400);
    border-left: 3px solid transparent;
}

.sidebar-menu li:hover {
    background: var(--gray-800);
    color: white;
}

.sidebar-menu li.active {
    background: var(--gray-800);
    color: white;
    border-left-color: var(--primary);
}

.sidebar-menu li i {
    font-size: 18px;
    width: 24px;
    text-align: center;
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid var(--gray-700);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    color: var(--gray-300);
}

.user-info i {
    font-size: 24px;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 24px;
    min-height: 100vh;
}

.content-page {
    display: none;
}

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

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.page-header h2 {
    font-size: 24px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 12px;
}

.page-header h2 i {
    color: var(--primary);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.stat-card {
    background: white;
    border-radius: 12px;
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

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

.stat-card.expense .stat-icon {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.stat-info h3 {
    font-size: 14px;
    color: var(--gray-500);
    margin-bottom: 4px;
}

.stat-info p {
    font-size: 24px;
    font-weight: 700;
}

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 24px;
}

/* Cards */
.card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--gray-200);
}

.card-header h3 {
    font-size: 16px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}

.card-header h3 i {
    color: var(--primary);
}

.card-body {
    padding: 24px;
}

/* Currency Tabs */
.currency-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 24px;
}

.tab-btn {
    padding: 12px 24px;
    border: 2px solid var(--gray-200);
    background: white;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
    transition: all 0.2s;
}

.tab-btn:hover {
    border-color: var(--primary);
}

.tab-btn.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.tab-btn img {
    width: 20px;
    height: 14px;
    object-fit: cover;
    border-radius: 2px;
}

/* Accounts Grid */
.accounts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.account-card {
    background: white;
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
}

.account-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
}

.account-card.VND::before {
    background: #ef4444;
}

.account-card.JPY::before {
    background: #dc2626;
}

.account-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 16px;
}

.account-card-header h3 {
    font-size: 18px;
    font-weight: 600;
}

.account-card-header .currency-badge {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.currency-badge.VND {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
}

.currency-badge.JPY {
    background: rgba(220, 38, 38, 0.1);
    color: #dc2626;
}

.account-balance {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
}

.account-description {
    color: var(--gray-500);
    font-size: 14px;
}

/* Filters */
.filters-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: flex-end;
    margin-bottom: 24px;
    padding: 20px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.filter-group label {
    font-size: 12px;
    font-weight: 500;
    color: var(--gray-600);
}

.filter-group input,
.filter-group select {
    padding: 10px 14px;
    border: 2px solid var(--gray-200);
    border-radius: 8px;
    font-size: 14px;
    min-width: 150px;
}

/* Data Table */
.table-responsive {
    background: white;
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

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

.data-table th,
.data-table td {
    padding: 16px 20px;
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

.data-table th {
    background: var(--gray-50);
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    color: var(--gray-600);
    letter-spacing: 0.5px;
}

.data-table tr:hover {
    background: var(--gray-50);
}

.data-table tr:last-child td {
    border-bottom: none;
}

.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

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

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

.badge-admin {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
}

.badge-user {
    background: rgba(107, 114, 128, 0.1);
    color: var(--gray-600);
}

.invoice-link {
    color: var(--primary);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.invoice-link:hover {
    text-decoration: underline;
}

/* Settings */
.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 24px;
}

.category-section {
    margin-bottom: 24px;
}

.category-section h4 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--gray-700);
}

.category-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 12px;
}

.category-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    background: var(--gray-100);
    border-radius: 20px;
    font-size: 14px;
}

.category-tag button {
    background: none;
    border: none;
    color: var(--gray-400);
    cursor: pointer;
    padding: 0;
    font-size: 12px;
}

.category-tag button:hover {
    color: var(--danger);
}

.add-category {
    display: flex;
    gap: 8px;
}

.add-category input {
    flex: 1;
    padding: 10px 14px;
    border: 2px solid var(--gray-200);
    border-radius: 8px;
    font-size: 14px;
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
}

.modal-overlay.active {
    display: flex;
}

.modal-content {
    background: white;
    border-radius: 16px;
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.modal-header {
    padding: 24px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 18px;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 20px;
    color: var(--gray-400);
    cursor: pointer;
}

.modal-close:hover {
    color: var(--gray-600);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 20px 24px;
    border-top: 1px solid var(--gray-200);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* Invoice Viewer */
.invoice-viewer {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1100;
}

.invoice-viewer.active {
    display: flex;
}

.invoice-viewer-content {
    position: relative;
    max-width: 90%;
    max-height: 90%;
}

.close-viewer {
    position: absolute;
    top: -40px;
    right: 0;
    background: none;
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
}

#invoice-display img {
    max-width: 100%;
    max-height: 80vh;
    border-radius: 8px;
}

#invoice-display iframe {
    width: 80vw;
    height: 80vh;
    border: none;
    border-radius: 8px;
}

/* Account Summary */
.account-summary-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 0;
    border-bottom: 1px solid var(--gray-100);
}

.account-summary-item:last-child {
    border-bottom: none;
}

.account-summary-item .name {
    display: flex;
    align-items: center;
    gap: 10px;
}

.account-summary-item .balance {
    font-weight: 600;
    font-size: 16px;
}

.account-summary-item .currency-flag {
    width: 24px;
    height: 16px;
    object-fit: cover;
    border-radius: 2px;
}

/* Recent Transactions */
.recent-tx-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--gray-100);
}

.recent-tx-item:last-child {
    border-bottom: none;
}

.recent-tx-info {
    display: flex;
    flex-direction: column;
}

.recent-tx-info .category {
    font-weight: 500;
}

.recent-tx-info .date {
    font-size: 12px;
    color: var(--gray-500);
}

.recent-tx-amount {
    font-weight: 600;
}

.recent-tx-amount.income {
    color: var(--success);
}

.recent-tx-amount.expense {
    color: var(--danger);
}

/* File Upload */
.file-upload {
    border: 2px dashed var(--gray-300);
    border-radius: 8px;
    padding: 24px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
}

.file-upload:hover {
    border-color: var(--primary);
    background: var(--gray-50);
}

.file-upload input {
    display: none;
}

.file-upload i {
    font-size: 32px;
    color: var(--gray-400);
    margin-bottom: 8px;
}

.file-upload p {
    color: var(--gray-500);
    font-size: 14px;
}

.file-upload .file-name {
    margin-top: 8px;
    color: var(--primary);
    font-weight: 500;
}

/* Admin Only */
.admin-only {
    display: none;
}

body.is-admin .admin-only {
    display: block;
}

body.is-admin .sidebar-menu .admin-only {
    display: flex;
}

body.is-admin .page-header .admin-only {
    display: inline-flex;
}

/* Mobile Menu Toggle */
.mobile-header {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: var(--gray-900);
    z-index: 150;
    padding: 0 16px;
    align-items: center;
    justify-content: space-between;
}

.mobile-header .logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: white;
    font-weight: 600;
}

.mobile-header .logo i {
    color: var(--primary);
    font-size: 24px;
}

.menu-toggle {
    background: none;
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
    padding: 8px;
}

.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 90;
}

.sidebar-overlay.active {
    display: block;
}

/* Floating Action Buttons */
.fab-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: flex-end;
}

.fab {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: white;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    transition: transform 0.2s, box-shadow 0.2s;
}

.fab:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.4);
}

.fab.fab-income {
    background: var(--success);
}

.fab.fab-expense {
    background: var(--danger);
}

.fab-label {
    position: absolute;
    right: 68px;
    background: var(--gray-900);
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 14px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
}

.fab:hover .fab-label {
    opacity: 1;
}

/* Responsive - Tablet */
@media (max-width: 1024px) {
    .sidebar {
        width: 220px;
    }

    .main-content {
        margin-left: 220px;
    }

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

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

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

/* Pagination Styles */
.pagination-container {
    margin-top: 20px;
}

.pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    padding: 16px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.pagination-info {
    font-size: 14px;
    color: #666;
}

.pagination-buttons {
    display: flex;
    align-items: center;
    gap: 4px;
}

.pagination-btn {
    min-width: 36px;
    height: 36px;
    padding: 0 12px;
    border: 1px solid #ddd;
    background: white;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    color: #333;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.pagination-btn:hover:not(:disabled) {
    background: #f5f5f5;
    border-color: #3498db;
    color: #3498db;
}

.pagination-btn.active {
    background: #3498db;
    border-color: #3498db;
    color: white;
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination-ellipsis {
    padding: 0 8px;
    color: #999;
}

/* Responsive - Mobile */
@media (max-width: 768px) {
    /* Prevent zoom on input focus (iOS) - font-size must be >= 16px */
    input, select, textarea {
        font-size: 16px !important;
    }

    /* Prevent body scroll when sidebar is open */
    body.sidebar-open {
        overflow: hidden;
    }

    .mobile-header {
        display: flex;
    }

    .sidebar {
        position: fixed;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        width: 280px;
        z-index: 100;
        top: 0;
        bottom: 0;
    }

    .sidebar.open {
        transform: translateX(0);
    }

    #main-app {
        display: block;
        min-height: auto;
    }

    .main-content {
        margin-left: 0;
        padding: 70px 12px 100px 12px;
        min-height: auto;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }

    .stat-card {
        padding: 16px;
        gap: 12px;
    }

    .stat-icon {
        width: 40px;
        height: 40px;
        font-size: 18px;
    }

    .stat-info h3 {
        font-size: 12px;
    }

    .stat-info p {
        font-size: 16px;
    }

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

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

    .filters-bar {
        flex-direction: column;
        align-items: stretch;
        padding: 16px;
        gap: 12px;
    }

    .filter-group {
        width: 100%;
    }

    .filter-group input,
    .filter-group select {
        width: 100%;
    }

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

    .page-header {
        flex-direction: column;
        gap: 12px;
        align-items: stretch;
    }

    .page-header h2 {
        font-size: 20px;
    }

    .btn-group {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
    }

    .btn-group .btn {
        flex: 1;
        min-width: 100px;
        justify-content: center;
    }

    /* Hide transaction buttons on mobile */
    #page-transactions .page-header .btn-group {
        display: none;
    }

    /* Compact filters on mobile */
    .filters-bar {
        flex-direction: row;
        flex-wrap: wrap;
        padding: 12px;
        gap: 8px;
    }

    .filters-bar .filter-group {
        flex: 1;
        min-width: calc(50% - 4px);
    }

    .filters-bar .filter-group label {
        font-size: 11px;
        margin-bottom: 2px;
    }

    .filters-bar .filter-group input,
    .filters-bar .filter-group select {
        padding: 8px;
        font-size: 14px !important;
    }

    .filters-bar > .btn {
        width: 100%;
        margin-top: 4px;
    }

    /* Horizontal scrollable table */
    .table-responsive {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .data-table {
        font-size: 12px;
        min-width: 600px;
    }

    .data-table th,
    .data-table td {
        padding: 10px 8px;
        white-space: nowrap;
    }

    .data-table .btn-sm {
        padding: 6px 8px;
        font-size: 11px;
    }

    /* Pagination mobile */
    .pagination {
        flex-direction: column;
        align-items: center;
        gap: 12px;
        padding: 12px;
    }

    .pagination-info {
        font-size: 13px;
        order: 2;
    }

    .pagination-buttons {
        order: 1;
        flex-wrap: wrap;
        justify-content: center;
    }

    .pagination-btn {
        min-width: 32px;
        height: 32px;
        font-size: 13px;
    }

    /* Currency Tabs */
    .currency-tabs {
        flex-wrap: wrap;
        gap: 8px;
    }

    .tab-btn {
        padding: 8px 12px;
        flex: 1;
        min-width: auto;
        justify-content: center;
        font-size: 12px;
    }

    .tab-btn img {
        width: 16px;
        height: 12px;
    }

    /* Transaction Tabs */
    .transaction-tabs {
        padding: 4px;
    }

    .tx-tab-btn {
        padding: 10px 12px;
        font-size: 13px;
    }

    .tx-tab-btn span {
        display: none;
    }

    /* Capital Tabs */
    .capital-tabs {
        padding: 4px;
    }

    .capital-tab-btn {
        padding: 10px 12px;
        font-size: 13px;
    }

    .capital-tab-btn span {
        display: none;
    }

    /* Cards */
    .card-body {
        padding: 16px;
    }

    .card-header {
        padding: 16px;
        flex-direction: column;
        gap: 12px;
        align-items: stretch;
    }

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

    /* Modal */
    .modal-content {
        max-width: 95%;
        max-height: 85vh;
        margin: 20px;
    }

    .modal-header {
        padding: 16px;
    }

    .modal-body {
        padding: 16px;
    }

    .modal-footer {
        padding: 16px;
        flex-direction: column;
    }

    .modal-footer .btn {
        width: 100%;
    }

    /* Sidebar footer */
    .sidebar-footer {
        padding: 16px;
    }

    /* Login */
    .login-box {
        padding: 24px;
        margin: 16px;
    }

    /* Toast on mobile */
    .toast {
        left: 16px;
        right: 16px;
        bottom: 80px;
    }

    /* FAB adjustments for mobile */
    .fab-container {
        bottom: 16px;
        right: 16px;
    }

    .fab {
        width: 50px;
        height: 50px;
        font-size: 18px;
    }

    .fab-label {
        display: none;
    }

    /* Capital stats on mobile */
    .capital-stats {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }

    /* Sub header */
    .page-header.sub-header {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }

    .page-header.sub-header h3 {
        font-size: 16px;
    }

    /* Log data on mobile */
    .log-data {
        max-width: 150px;
        font-size: 10px;
    }
}

/* Very small screens */
@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

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

    .tab-btn {
        min-width: 100%;
    }

    .btn-group {
        flex-direction: column;
    }

    .btn-group .btn {
        width: 100%;
    }

    .page-header h2 {
        font-size: 18px;
    }

    .data-table {
        min-width: 500px;
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.content-page.active {
    animation: fadeIn 0.3s ease-out;
}

/* Toast Notification */
.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    padding: 16px 24px;
    background: var(--gray-900);
    color: white;
    border-radius: 8px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: 2000;
    animation: slideIn 0.3s ease-out;
}

.toast.success {
    background: var(--success);
}

.toast.error {
    background: var(--danger);
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(100px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Amount formatting */
.amount-vnd {
    color: var(--danger);
}

.amount-jpy {
    color: #dc2626;
}

/* Loading */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    color: var(--gray-400);
}

.loading i {
    animation: spin 1s linear infinite;
    font-size: 24px;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Transaction Tabs */
.transaction-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 20px;
    background: white;
    border-radius: 12px;
    padding: 6px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.tx-tab-btn {
    flex: 1;
    padding: 14px 24px;
    border: none;
    background: transparent;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 500;
    font-size: 14px;
    transition: all 0.2s;
    color: var(--gray-600);
}

.tx-tab-btn:hover {
    background: var(--gray-100);
}

.tx-tab-btn.active {
    background: var(--primary);
    color: white;
}

.tx-tab-btn[data-type="income"].active {
    background: var(--success);
}

.tx-tab-btn[data-type="expense"].active {
    background: var(--danger);
}

.tx-tab-btn i {
    font-size: 16px;
}

/* Full Width Card */
.card.full-width {
    grid-column: 1 / -1;
}

/* Card Header with Button */
.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Excel Button Style */
.btn-excel {
    background: #217346;
    color: white;
}

.btn-excel:hover {
    background: #1a5c38;
}

/* Capital Stats */
.capital-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.stat-card.capital .stat-icon {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
}

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

/* Capital Tabs */
.capital-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 24px;
    background: white;
    border-radius: 12px;
    padding: 6px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.capital-tab-btn {
    flex: 1;
    padding: 14px 24px;
    border: none;
    background: transparent;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 500;
    font-size: 14px;
    transition: all 0.2s;
    color: var(--gray-600);
}

.capital-tab-btn:hover {
    background: var(--gray-100);
}

.capital-tab-btn.active {
    background: var(--primary);
    color: white;
}

.capital-tab-btn[data-tab="profit"].active {
    background: var(--warning);
}

.capital-tab-btn i {
    font-size: 16px;
}

/* Capital Tab Content */
.capital-tab-content {
    display: none;
}

.capital-tab-content.active {
    display: block;
}

/* Sub Header */
.page-header.sub-header {
    margin-bottom: 16px;
    padding: 0;
}

.page-header.sub-header h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-700);
}

/* Log Action Badges */
.badge-update {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
}

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

/* Log Data Display */
.log-data {
    max-width: 250px;
    max-height: 100px;
    overflow: auto;
    font-size: 12px;
    background: var(--gray-50);
    padding: 8px;
    border-radius: 4px;
    font-family: monospace;
    white-space: pre-wrap;
    word-break: break-word;
}

.log-data-toggle {
    color: var(--primary);
    cursor: pointer;
    font-size: 12px;
    margin-top: 4px;
    display: inline-block;
}

.log-data-toggle:hover {
    text-decoration: underline;
}

/* Warning Button */
.btn-warning {
    background: var(--warning);
    color: white;
}

.btn-warning:hover {
    background: #d97706;
}

/* =============================================
   MOBILE BOTTOM NAVIGATION
   ============================================= */

.bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 65px;
    background: white;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    padding: 8px 0;
    padding-bottom: env(safe-area-inset-bottom, 8px);
}

.bottom-nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    background: none;
    border: none;
    color: var(--gray-500);
    font-size: 10px;
    cursor: pointer;
    transition: all 0.2s;
    padding: 4px;
}

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

.bottom-nav-item.active {
    color: var(--primary);
}

.bottom-nav-item.fab-trigger {
    position: relative;
}

.bottom-nav-item.fab-trigger i {
    font-size: 32px;
    color: var(--primary);
}

/* Quick Actions Overlay */
.quick-actions-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1100;
    align-items: flex-end;
    justify-content: center;
    padding-bottom: 80px;
}

.quick-actions-overlay.active {
    display: flex;
}

.quick-actions-menu {
    display: flex;
    gap: 16px;
    padding: 20px;
    background: white;
    border-radius: 20px;
    margin: 0 16px;
}

.quick-action-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 16px 24px;
    border: none;
    border-radius: 16px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    color: white;
    min-width: 80px;
}

.quick-action-btn i {
    font-size: 24px;
}

.quick-action-btn.income {
    background: var(--success);
}

.quick-action-btn.expense {
    background: var(--danger);
}

.quick-action-btn.transfer {
    background: var(--primary);
}

/* More Menu */
.more-menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1100;
    align-items: flex-end;
}

.more-menu-overlay.active {
    display: flex;
}

.more-menu {
    width: 100%;
    background: white;
    border-radius: 20px 20px 0 0;
    padding: 16px;
    padding-bottom: env(safe-area-inset-bottom, 16px);
    max-height: 70vh;
    overflow-y: auto;
}

.more-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 8px 16px;
    border-bottom: 1px solid var(--gray-200);
    margin-bottom: 8px;
}

.more-menu-header span {
    font-size: 18px;
    font-weight: 600;
}

.more-menu-header button {
    background: none;
    border: none;
    font-size: 20px;
    color: var(--gray-500);
    cursor: pointer;
    padding: 8px;
}

.more-menu-item {
    display: flex;
    align-items: center;
    gap: 16px;
    width: 100%;
    padding: 16px;
    background: none;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    font-size: 16px;
    color: var(--gray-700);
    transition: background 0.2s;
}

.more-menu-item:hover, .more-menu-item:active {
    background: var(--gray-100);
}

.more-menu-item i {
    font-size: 20px;
    width: 28px;
    text-align: center;
    color: var(--gray-500);
}

.more-menu-item.logout {
    color: var(--danger);
    border-top: 1px solid var(--gray-200);
    margin-top: 8px;
    padding-top: 16px;
}

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

/* Mobile Specific Overrides */
@media (max-width: 768px) {
    /* Show bottom nav */
    .bottom-nav {
        display: flex;
    }

    /* Hide desktop sidebar completely */
    .sidebar {
        display: none !important;
    }

    .sidebar-overlay {
        display: none !important;
    }

    /* Simpler mobile header */
    .mobile-header {
        display: flex;
        justify-content: center;
    }

    .mobile-header .menu-toggle {
        display: none;
    }

    /* Adjust main content for bottom nav */
    .main-content {
        padding: 70px 12px 100px 12px;
    }

    /* Hide FAB on mobile (using bottom nav instead) */
    .fab-container {
        display: none;
    }

    /* Better page headers on mobile */
    .page-header {
        flex-direction: column;
        gap: 12px;
        align-items: stretch;
        padding: 0;
    }

    .page-header h2 {
        font-size: 18px;
        text-align: center;
    }

    .page-header .btn-group {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        width: 100%;
    }

    .page-header .btn-group .btn {
        flex: 1;
        min-width: calc(50% - 4px);
        padding: 10px 12px;
        font-size: 12px;
        justify-content: center;
    }

    /* Mobile-friendly stats */
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }

    .stat-card {
        padding: 12px;
        gap: 10px;
        border-radius: 10px;
    }

    .stat-icon {
        width: 36px;
        height: 36px;
        font-size: 16px;
        border-radius: 8px;
    }

    .stat-info h3 {
        font-size: 11px;
    }

    .stat-info p {
        font-size: 14px;
    }

    /* Mobile cards */
    .card {
        border-radius: 12px;
    }

    .card-header {
        padding: 12px 16px;
    }

    .card-body {
        padding: 12px 16px;
    }

    /* Mobile-friendly tabs */
    /* Mobile Tabs - Full width, icon only */
    .currency-tabs,
    .transaction-tabs,
    .capital-tabs {
        display: flex !important;
        flex-wrap: nowrap !important;
        width: 100% !important;
        border-radius: 10px;
        padding: 4px;
        gap: 4px;
        overflow: visible !important;
    }

    .tab-btn {
        flex: 1 1 0 !important;
        padding: 10px 8px !important;
        font-size: 11px !important;
        border-radius: 8px;
        min-width: 0 !important;
        white-space: nowrap;
    }

    .tx-tab-btn,
    .capital-tab-btn {
        flex: 1 1 0 !important;
        padding: 14px 10px !important;
        font-size: 18px !important;
        border-radius: 8px;
        min-width: 0 !important;
    }

    .tab-btn img {
        width: 16px;
        height: 12px;
        margin-right: 4px;
    }

    /* Ẩn text trên mobile, chỉ hiện icon */
    .tx-tab-btn span,
    .capital-tab-btn span {
        display: none !important;
    }

    /* Icon size on mobile */
    .tx-tab-btn i,
    .capital-tab-btn i {
        font-size: 20px !important;
    }

    /* Mobile table */
    .table-responsive {
        margin: 0 -12px;
        padding: 0 12px;
        border-radius: 0;
    }

    .data-table {
        font-size: 11px;
        min-width: 550px;
    }

    .data-table th,
    .data-table td {
        padding: 8px 6px;
    }

    .data-table .btn-sm {
        padding: 5px 6px;
        font-size: 10px;
    }

    /* Mobile filters */
    .filters-bar {
        padding: 12px;
        gap: 10px;
        border-radius: 10px;
        margin-bottom: 12px;
    }

    .filter-group label {
        font-size: 11px;
    }

    .filter-group input,
    .filter-group select {
        padding: 8px 10px;
        font-size: 14px;
    }

    /* Mobile modal */
    .modal-content {
        max-width: 100%;
        max-height: 90vh;
        margin: 0;
        border-radius: 20px 20px 0 0;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
    }

    .modal-overlay.active {
        align-items: flex-end;
    }

    .modal-header {
        padding: 16px;
        border-radius: 20px 20px 0 0;
    }

    .modal-body {
        padding: 16px;
        max-height: 60vh;
        overflow-y: auto;
    }

    .modal-footer {
        padding: 12px 16px;
        padding-bottom: env(safe-area-inset-bottom, 12px);
    }

    /* Mobile account cards */
    .accounts-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .account-card {
        padding: 16px;
        border-radius: 12px;
    }

    .account-balance {
        font-size: 22px;
    }

    /* Dashboard grid on mobile */
    .dashboard-grid {
        gap: 12px;
    }

    /* Settings on mobile */
    .settings-grid {
        gap: 12px;
    }

    /* Toast position for bottom nav */
    .toast {
        bottom: 80px;
        left: 12px;
        right: 12px;
    }

    /* Capital page mobile */
    .capital-stats {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }

    .page-header.sub-header {
        flex-direction: row;
        padding: 12px 0;
    }

    .page-header.sub-header h3 {
        font-size: 14px;
    }

    .page-header.sub-header .btn {
        padding: 8px 12px;
        font-size: 12px;
    }

    /* Recent transactions on dashboard */
    .recent-tx-item {
        padding: 10px 0;
    }

    .recent-tx-info .category {
        font-size: 13px;
    }

    .recent-tx-info .date {
        font-size: 11px;
    }

    .recent-tx-amount {
        font-size: 13px;
    }

    /* Account summary on dashboard */
    .account-summary-item {
        padding: 10px 0;
    }

    .account-summary-item .balance {
        font-size: 14px;
    }
}

/* Very small screens */
@media (max-width: 380px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

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

    .stat-card {
        flex-direction: row;
        align-items: center;
    }

    .quick-actions-menu {
        flex-direction: column;
        gap: 10px;
    }

    .quick-action-btn {
        flex-direction: row;
        justify-content: flex-start;
        padding: 14px 20px;
    }
}