/* ============================================
   NkaWallet - Modern Finance App Styles
   Mobile-first, Glassmorphism Design
   ============================================ */

/* CSS Variables */
:root {
    /* Colors */
    --color-income: #22C55E;
    --color-income-light: #DCFCE7;
    --color-expense: #EF4444;
    --color-expense-light: #FEE2E2;
    --color-transfer: #3B82F6;
    --color-transfer-light: #DBEAFE;
    
    /* Background */
    --bg-primary: #F8FAFC;
    --bg-secondary: #FFFFFF;
    --bg-card: rgba(255, 255, 255, 0.8);
    
    /* Text */
    --text-primary: #0F172A;
    --text-secondary: #475569;
    --text-muted: #64748B;
    
    /* Borders */
    --border-color: #E2E8F0;
    --border-radius: 16px;
    --border-radius-sm: 12px;
    --border-radius-xs: 8px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.1);
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    
    /* Header */
    --header-height: 56px;
    
    /* FAB */
    --fab-size: 56px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
}

/* Dark Mode */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: #0F172A;
        --bg-secondary: #1E293B;
        --bg-card: rgba(30, 41, 59, 0.8);
        --text-primary: #F1F5F9;
        --text-secondary: #94A3B8;
        --text-muted: #64748B;
        --border-color: #334155;
    }
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

#app {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.25;
    letter-spacing: -0.025em;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    z-index: 100;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    padding: 0 var(--spacing-md);
    max-width: 600px;
    margin: 0 auto;
}

.header-title {
    font-size: 1.25rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-income), var(--color-transfer));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.menu-btn, .settings-btn, .back-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    color: var(--text-primary);
    border-radius: var(--border-radius-xs);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.menu-btn:hover, .settings-btn:hover, .back-btn:hover {
    background: var(--border-color);
}

.menu-icon {
    width: 20px;
    height: 2px;
    background: currentColor;
    position: relative;
    border-radius: 2px;
}

.menu-icon::before, .menu-icon::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: currentColor;
    border-radius: 2px;
    left: 0;
}

.menu-icon::before { top: -6px; }
.menu-icon::after { top: 6px; }

/* Side Navigation */
.side-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 280px;
    height: 100vh;
    background: var(--bg-secondary);
    transform: translateX(-100%);
    transition: transform var(--transition-normal);
    z-index: 200;
    box-shadow: var(--shadow-lg);
}

.side-nav.open {
    transform: translateX(0);
}

.side-nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
    z-index: 150;
}

.side-nav-overlay.open {
    opacity: 1;
    visibility: visible;
}

.side-nav-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.side-nav-logo {
    font-size: 2rem;
}

.side-nav-title {
    font-size: 1.25rem;
    font-weight: 700;
}

.side-nav-menu {
    list-style: none;
    padding: var(--spacing-md);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-fast);
    font-weight: 500;
}

.nav-item:hover {
    background: var(--border-color);
    color: var(--text-primary);
}

.nav-item.active {
    background: var(--color-transfer);
    color: white;
}

.nav-icon {
    font-size: 1.25rem;
}

/* Main Content */
.main-content {
    flex: 1;
    padding: calc(var(--header-height) + var(--spacing-md)) var(--spacing-md) calc(var(--fab-size) + var(--spacing-xl));
    max-width: 600px;
    margin: 0 auto;
    width: 100%;
}

/* Views */
.view {
    display: none;
    animation: fadeIn var(--transition-normal);
}

.view.active {
    display: block;
}

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

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

.view-header h2 {
    font-size: 1.5rem;
}

/* Source Selector */
.source-selector {
    margin-bottom: var(--spacing-md);
}

.source-select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-xs);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.875rem;
    cursor: pointer;
}

/* Balance Card */
.balance-card {
    background: linear-gradient(135deg, #3B82F6, #8B5CF6);
    color: white;
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    text-align: center;
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-lg);
    animation: slideUp var(--transition-slow);
}

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

.balance-label {
    font-size: 0.875rem;
    opacity: 0.9;
    margin-bottom: var(--spacing-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.balance-amount {
    font-size: 2.5rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    margin-bottom: var(--spacing-xs);
}

.balance-source {
    font-size: 0.875rem;
    opacity: 0.8;
}

/* Quick Actions */
.quick-actions {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.quick-action-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    border: none;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.quick-action-btn:active {
    transform: scale(0.95);
}

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

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

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

.action-icon {
    font-size: 1.5rem;
    font-weight: 700;
}

.action-label {
    font-size: 0.75rem;
}

/* Summary Card */
.summary-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-glass);
}

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

.summary-title {
    font-size: 1rem;
    font-weight: 600;
}

.summary-period {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.summary-rows {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.summary-label {
    color: var(--text-secondary);
}

.summary-value {
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

.summary-row.income .summary-value { color: var(--color-income); }
.summary-row.expense .summary-value { color: var(--color-expense); }
.summary-row.balance .summary-value { color: var(--color-transfer); }

/* Chart Card */
.chart-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.chart-title {
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
}

.chart-container {
    position: relative;
    height: 200px;
    margin-bottom: var(--spacing-md);
}

.chart-legend {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.legend-color {
    width: 12px;
    height: 12px;
    border-radius: 3px;
}

/* Sources Grid */
.sources-section, .transactions-section {
    margin-bottom: var(--spacing-lg);
}

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

.section-title {
    font-size: 1rem;
    font-weight: 600;
}

.section-link {
    font-size: 0.875rem;
    color: var(--color-transfer);
    text-decoration: none;
}

.sources-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
}

.source-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: var(--spacing-md);
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

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

.source-card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.source-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius-xs);
    font-size: 1.25rem;
}

.source-name {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.source-balance {
    font-size: 1.125rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

/* Transactions List */
.transactions-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.transaction-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: var(--spacing-md);
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.transaction-item:active {
    transform: scale(0.98);
}

.transaction-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius-xs);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.transaction-details {
    flex: 1;
    min-width: 0;
}

.transaction-category {
    font-weight: 600;
    margin-bottom: 2px;
}

.transaction-description {
    font-size: 0.75rem;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.transaction-meta {
    text-align: right;
    flex-shrink: 0;
}

.transaction-amount {
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.transaction-amount.income { color: var(--color-income); }
.transaction-amount.expense { color: var(--color-expense); }

.transaction-date {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.transaction-time {
    display: block;
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 2px;
    opacity: 0.8;
}

/* FAB */
.fab {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    width: var(--fab-size);
    height: var(--fab-size);
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-transfer), #8B5CF6);
    color: white;
    border: none;
    box-shadow: var(--shadow-lg);
    cursor: pointer;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.fab:hover {
    transform: scale(1.05);
    box-shadow: 0 12px 24px rgba(59, 130, 246, 0.4);
}

.fab:active {
    transform: scale(0.95);
}

.fab-icon {
    font-size: 1.75rem;
    font-weight: 300;
}

/* Modals */
.modal {
    position: fixed;
    inset: 0;
    z-index: 300;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
    padding: 0;
}

.modal.open {
    opacity: 1;
    visibility: visible;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    width: 100%;
    max-width: 100%;
    max-height: 85vh;
    min-height: 50vh;
    background: var(--bg-secondary);
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    transform: translateY(100%);
    transition: transform var(--transition-normal);
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
}

.modal.open .modal-content {
    transform: translateY(0);
}

.modal-small .modal-content {
    max-height: 75vh;
    min-height: auto;
}

/* Modal drag indicator */
.modal-content::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 4px;
    background: var(--border-color);
    border-radius: 2px;
    z-index: 20;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg) var(--spacing-md);
    padding-top: calc(var(--spacing-lg) + 8px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    background: var(--bg-secondary);
    z-index: 10;
}

.modal-close, .modal-save {
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    background: transparent;
    font-size: 1rem;
    cursor: pointer;
    border-radius: var(--border-radius-xs);
    min-width: 44px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close {
    font-size: 1.75rem;
    color: var(--text-muted);
}

.modal-close:active {
    background: var(--border-color);
}

.modal-save {
    color: var(--color-transfer);
    font-weight: 600;
    font-size: 1.1rem;
}

.modal-save:active {
    background: var(--color-transfer-light);
}

.modal-title {
    font-size: 1.125rem;
    flex: 1;
    text-align: center;
}

/* Modal Tabs */
.modal-tabs {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.modal-tab {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    background: transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    -webkit-tap-highlight-color: transparent;
}

.modal-tab .tab-icon {
    font-size: 1.5rem;
    color: var(--text-muted);
}

.modal-tab.active {
    border-color: var(--color-transfer);
    background: var(--color-transfer-light);
}

.modal-tab.active .tab-icon {
    color: var(--color-transfer);
}

.modal-tab[data-type="income"].active {
    border-color: var(--color-income);
    background: var(--color-income-light);
}

.modal-tab[data-type="income"].active .tab-icon {
    color: var(--color-income);
}

.modal-tab[data-type="expense"].active {
    border-color: var(--color-expense);
    background: var(--color-expense-light);
}

.modal-tab[data-type="expense"].active .tab-icon {
    color: var(--color-expense);
}

/* Modal Form */
.modal-form {
    padding: var(--spacing-md);
    padding-bottom: calc(var(--spacing-xl) + env(safe-area-inset-bottom, 0px));
}

.amount-input-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-primary);
    border-radius: var(--border-radius-sm);
    border: 2px solid var(--border-color);
}

.amount-input-group:focus-within {
    border-color: var(--color-transfer);
}

.amount-icon {
    font-size: 1.25rem;
    flex-shrink: 0;
}

.amount-input {
    flex: 1;
    font-size: 2rem;
    font-weight: 700;
    border: none;
    background: transparent;
    color: var(--text-primary);
    text-align: right;
    font-variant-numeric: tabular-nums;
    min-width: 0;
    width: 100%;
}

@media (min-width: 375px) {
    .amount-input {
        font-size: 2.25rem;
    }
}

.amount-input::placeholder {
    color: var(--text-muted);
}

.amount-input:focus {
    outline: none;
}

.currency {
    font-size: 0.875rem;
    color: var(--text-muted);
    font-weight: 600;
    flex-shrink: 0;
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.form-label-small {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
}

/* File Upload */
.file-upload-group {
    margin-bottom: var(--spacing-md);
}

.file-upload-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
}

.file-upload-wrapper {
    position: relative;
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: var(--spacing-md);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    background: var(--bg-primary);
}

.file-upload-wrapper:hover,
.file-upload-wrapper.dragover {
    border-color: var(--color-transfer);
    background: var(--color-transfer-light);
}

.file-upload-wrapper.has-file {
    border-style: solid;
    border-color: var(--color-income);
}

.file-upload-input {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.file-upload-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
}

.file-upload-icon {
    font-size: 1.5rem;
}

.file-upload-text {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.file-upload-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.file-preview {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm);
    background: var(--bg-secondary);
    border-radius: var(--border-radius-xs);
    margin-top: var(--spacing-sm);
}

.file-preview-icon {
    font-size: 1.5rem;
}

.file-preview-info {
    flex: 1;
    min-width: 0;
}

.file-preview-name {
    font-size: 0.875rem;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-preview-size {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.file-preview-remove {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: var(--color-expense-light);
    color: var(--color-expense);
    border-radius: 50%;
    cursor: pointer;
    font-size: 1rem;
    flex-shrink: 0;
}

.file-preview-image {
    width: 48px;
    height: 48px;
    object-fit: cover;
    border-radius: var(--border-radius-xs);
}

/* Existing attachment preview (for editing) */
.file-preview-existing .file-preview-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm);
    background: var(--color-transfer-light);
    border: 1px solid var(--color-transfer);
    border-radius: var(--border-radius-xs);
}

.file-preview-existing .file-preview-thumb {
    width: 48px;
    height: 48px;
    object-fit: cover;
    border-radius: var(--border-radius-xs);
}

.file-preview-existing .file-preview-icon {
    font-size: 2rem;
}

.file-preview-existing .file-preview-info {
    flex: 1;
    min-width: 0;
}

.file-preview-existing .file-preview-name {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-preview-existing span.file-preview-existing {
    font-size: 0.75rem;
    color: var(--color-transfer);
    display: block;
}

.label-icon {
    font-size: 1.25rem;
}

.form-select, .form-input {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-xs);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 1rem;
    width: 100%;
}

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

/* Icon & Color Pickers */
.icon-picker, .color-picker {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.icon-option {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-xs);
    background: var(--bg-primary);
    font-size: 1.25rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.icon-option.selected {
    border-color: var(--color-transfer);
    background: var(--color-transfer-light);
}

.color-option {
    width: 36px;
    height: 36px;
    border: 3px solid transparent;
    border-radius: 50%;
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.color-option.selected {
    border-color: var(--text-primary);
    transform: scale(1.1);
}

/* Filters Bar */
.filters-bar {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.filter-select, .filter-input {
    flex: 1;
    min-width: 120px;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-xs);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.875rem;
}

/* Report Tabs */
.report-tabs, .category-tabs {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.report-tab, .category-tab {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-xs);
    background: transparent;
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.report-tab.active, .category-tab.active {
    background: var(--color-transfer);
    border-color: var(--color-transfer);
    color: white;
}

/* Report Content */
.report-section {
    display: none;
}

.report-section.active {
    display: block;
}

.report-chart-container {
    height: 250px;
    margin-bottom: var(--spacing-lg);
}

/* Category Breakdown */
.category-breakdown {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.breakdown-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
}

.breakdown-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius-xs);
    font-size: 1.25rem;
}

.breakdown-details {
    flex: 1;
}

.breakdown-name {
    font-weight: 600;
    margin-bottom: 4px;
}

.breakdown-bar {
    height: 6px;
    background: var(--border-color);
    border-radius: 3px;
    overflow: hidden;
}

.breakdown-fill {
    height: 100%;
    border-radius: 3px;
    transition: width var(--transition-slow);
}

.breakdown-meta {
    text-align: right;
}

.breakdown-amount {
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.breakdown-percent {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Categories List */
.categories-list, .sources-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.category-item, .source-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.category-item:active, .source-item:active {
    transform: scale(0.98);
}

.category-icon-wrapper, .source-icon-wrapper {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius-xs);
    font-size: 1.5rem;
}

.category-info, .source-info {
    flex: 1;
}

.category-name, .source-name-text {
    font-weight: 600;
}

.category-type {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.source-balance-text {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-variant-numeric: tabular-nums;
}

.item-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.edit-btn, .delete-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    border-radius: var(--border-radius-xs);
    cursor: pointer;
    font-size: 0.875rem;
}

.edit-btn {
    background: var(--color-transfer-light);
    color: var(--color-transfer);
}

.delete-btn {
    background: var(--color-expense-light);
    color: var(--color-expense);
}

/* Add Button */
.add-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-transfer);
    color: white;
    border: none;
    border-radius: var(--border-radius-xs);
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.add-btn:hover {
    background: #2563EB;
}

/* Export Section */
.export-section {
    margin-top: var(--spacing-lg);
    text-align: center;
}

.export-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--color-income);
    color: white;
    border: none;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.export-btn:hover {
    background: #16A34A;
}

/* Load More */
.load-more {
    text-align: center;
    padding: var(--spacing-lg);
}

.load-more-btn {
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--border-color);
    color: var(--text-secondary);
    border: none;
    border-radius: var(--border-radius-sm);
    font-weight: 500;
    cursor: pointer;
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    bottom: calc(var(--fab-size) + var(--spacing-xl) + var(--spacing-md));
    left: 50%;
    transform: translateX(-50%);
    z-index: 400;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    pointer-events: none;
}

.toast {
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--text-primary);
    color: var(--bg-primary);
    border-radius: var(--border-radius-sm);
    font-weight: 500;
    box-shadow: var(--shadow-lg);
    animation: toastIn var(--transition-normal) forwards;
    pointer-events: auto;
}

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

.toast.error {
    background: var(--color-expense);
    color: white;
}

.toast.hide {
    animation: toastOut var(--transition-normal) forwards;
}

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

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

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 500;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-fast), visibility var(--transition-fast);
}

.loading-overlay.show {
    opacity: 1;
    visibility: visible;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--color-transfer);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-muted);
}

.empty-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.empty-text {
    font-size: 1rem;
}

/* Transaction Detail Modal */
.modal-detail {
    max-width: 440px;
}

.detail-content {
    padding: var(--spacing-lg);
}

.detail-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.detail-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
}

.detail-main {
    flex: 1;
}

.detail-category {
    font-weight: 600;
    font-size: 1.125rem;
    color: var(--text-primary);
}

.detail-type {
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-transform: capitalize;
}

.detail-amount {
    font-size: 1.5rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.detail-amount.income {
    color: var(--color-income);
}

.detail-amount.expense {
    color: var(--color-expense);
}

.detail-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.detail-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.detail-value {
    color: var(--text-primary);
    font-weight: 500;
    text-align: right;
}

.detail-attachment {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--bg-primary);
    border-radius: var(--border-radius-sm);
    border: 1px dashed var(--border-color);
}

.attachment-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.attachment-thumb {
    width: 100%;
    max-height: 200px;
    object-fit: contain;
    border-radius: var(--border-radius-xs);
    cursor: pointer;
    transition: opacity var(--transition-fast);
}

.attachment-thumb:hover {
    opacity: 0.8;
}

.attachment-file {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--border-radius-xs);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.attachment-file:hover {
    background: var(--bg-primary);
}

.attachment-file-icon {
    font-size: 2rem;
    color: var(--color-expense);
}

.attachment-file-info {
    flex: 1;
}

.attachment-file-name {
    font-weight: 500;
    color: var(--text-primary);
    word-break: break-all;
}

.attachment-file-size {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.attachment-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.attachment-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-xs);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.detail-actions {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.btn-delete {
    width: 100%;
    justify-content: center;
    color: var(--color-expense);
    border-color: var(--color-expense-light);
    background: var(--color-expense-light);
}

.btn-delete:hover {
    background: var(--color-expense);
    color: white;
}

/* Attachment Preview Modal */
.modal-preview {
    max-width: 90vw;
    max-height: 90vh;
}

.preview-content {
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 300px;
    background: #000;
}

.preview-image {
    max-width: 100%;
    max-height: 70vh;
    object-fit: contain;
}

.preview-pdf {
    width: 100%;
    height: 70vh;
    border: none;
}

.preview-error {
    color: white;
    text-align: center;
    padding: var(--spacing-xl);
}

/* Transaction item clickable */
.transaction-item {
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.transaction-item:active {
    transform: scale(0.98);
}

/* ============================================
   Settings View Styles
   ============================================ */

.settings-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    padding-bottom: var(--spacing-xl);
}

.settings-section {
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
}

.settings-section-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
}

.settings-section-header .section-icon {
    font-size: 1.25rem;
}

.settings-section-header h3 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 0;
}

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

.profile-avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-income), var(--color-transfer));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    flex-shrink: 0;
}

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

.profile-name {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.profile-email {
    font-size: 0.875rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.edit-profile-btn {
    background: var(--bg-primary);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-fast);
}

.edit-profile-btn:hover {
    background: var(--border-color);
}

.settings-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.settings-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-primary);
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: background var(--transition-fast);
    width: 100%;
    text-align: left;
}

.settings-item:hover {
    background: var(--border-color);
}

.settings-item .item-icon {
    font-size: 1.25rem;
    width: 24px;
    text-align: center;
}

.settings-item .item-label {
    flex: 1;
    font-size: 1rem;
    color: var(--text-primary);
}

.settings-item .item-arrow {
    color: var(--text-muted);
    font-size: 1.25rem;
}

.settings-item .item-select {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--text-primary);
    cursor: pointer;
}

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

.settings-item.logout .item-label {
    color: var(--color-transfer);
}

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

.settings-item.danger .item-label {
    color: var(--color-expense);
}

.app-info {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
    color: var(--text-muted);
}

.app-version {
    font-size: 0.875rem;
    font-weight: 500;
}

.app-copyright {
    font-size: 0.75rem;
    margin-top: var(--spacing-xs);
}

/* Settings Modals */
.settings-modal-content {
    padding: var(--spacing-lg);
}

.settings-modal-content .form-group {
    margin-bottom: var(--spacing-md);
}

.settings-modal-content .form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.settings-modal-content .form-input {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    color: var(--text-primary);
    background: var(--bg-primary);
}

.settings-modal-content .form-input:focus {
    outline: none;
    border-color: var(--color-income);
}

.settings-modal-content .btn-primary {
    width: 100%;
    padding: var(--spacing-md);
    background: linear-gradient(135deg, var(--color-income), #059669);
    color: white;
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    margin-top: var(--spacing-md);
}

.settings-modal-content .btn-danger {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--color-expense);
    color: white;
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    margin-top: var(--spacing-md);
}

/* Calculator Button */
.calculator-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border-radius: var(--border-radius-xs);
    cursor: pointer;
    transition: all var(--transition-fast);
    margin: 0 var(--spacing-xs);
}

.calculator-btn:hover {
    background: var(--border-color);
    color: var(--text-primary);
}

.calculator-btn:active {
    transform: scale(0.95);
}

/* Calculator Modal */
.modal-calculator {
    max-width: 340px;
    width: 90vw;
    padding: 0;
}

.calculator {
    padding: var(--spacing-md);
}

.calculator-display {
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-xs);
    padding: var(--spacing-md);
    text-align: right;
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    min-height: 60px;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    word-break: break-all;
    overflow-x: auto;
}

.calculator-buttons {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-auto-rows: minmax(60px, auto);
    gap: var(--spacing-sm);
}

.calc-btn {
    min-height: 60px;
    border: none;
    border-radius: var(--border-radius-xs);
    font-size: 1.25rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm);
}

.calc-number {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.calc-number:hover {
    background: var(--border-color);
}

.calc-number:active {
    transform: scale(0.95);
}

.calc-operator {
    background: var(--color-transfer);
    color: white;
}

.calc-operator:hover {
    opacity: 0.9;
}

.calc-operator:active {
    transform: scale(0.95);
}

.calc-equals {
    background: var(--color-income);
    color: white;
    font-size: 1.5rem;
}

.calc-equals:hover {
    opacity: 0.9;
}

.calc-equals:active {
    transform: scale(0.95);
}

.calc-clear {
    background: var(--color-expense);
    color: white;
}

.calc-clear:hover {
    opacity: 0.9;
}

.calc-clear:active {
    transform: scale(0.95);
}

.calc-backspace {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.calc-backspace:hover {
    background: var(--border-color);
}

.calc-backspace:active {
    transform: scale(0.95);
}

/* Calculator responsive fixes */
@media (max-width: 360px) {
    .calculator-buttons {
        grid-auto-rows: minmax(50px, auto);
    }
    
    .calc-btn {
        min-height: 50px;
        font-size: 1.1rem;
    }
    
    .calculator-display {
        font-size: 1.5rem;
        min-height: 50px;
    }
}

/* Subcategories styles */
.category-item.subcategory {
    padding-left: calc(var(--spacing-lg) + var(--spacing-md));
    background: var(--bg-secondary);
    border-left: 3px solid var(--border-color);
    margin-left: var(--spacing-md);
}

.category-item.subcategory .category-icon-wrapper {
    opacity: 0.85;
    font-size: 0.9em;
}

#subcategoryGroup {
    margin-top: calc(var(--spacing-md) * -0.5);
}

#subcategoryGroup .form-label {
    font-size: 0.9rem;
    color: var(--text-muted);
}

#subcategoryGroup .label-icon {
    opacity: 0.7;
}

/* Desktop Styles */
@media (min-width: 768px) {
    .modal-calculator {
        max-width: 360px;
    }
    .main-content {
        padding-left: var(--spacing-xl);
        padding-right: var(--spacing-xl);
    }
    
    .modal-content {
        border-radius: var(--border-radius);
        max-height: 85vh;
    }
    
    .modal {
        align-items: center;
    }
    
    .sources-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .transaction-item:hover {
        box-shadow: var(--shadow-md);
        transform: translateY(-2px);
    }
    
    .modal-preview {
        max-width: 800px;
    }
    
    .settings-content {
        max-width: 600px;
        margin: 0 auto;
    }
}

/* ============================================
   Allocation Section (expense ↔ income)
   ============================================ */
.allocation-section {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

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

.allocation-header .form-label-small {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin: 0;
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: 600;
}

.btn-add-allocation {
    flex-shrink: 0;
    padding: 0.35rem 0.75rem;
    border: 1px solid var(--color-transfer);
    border-radius: var(--border-radius-xs);
    background: transparent;
    color: var(--color-transfer);
    font-size: 0.8125rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-add-allocation:hover {
    background: var(--color-transfer);
    color: #fff;
}

.allocations-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.allocation-empty {
    margin: 0;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px dashed var(--border-color);
    border-radius: var(--border-radius-xs);
    color: var(--text-muted);
    font-size: 0.8125rem;
    text-align: center;
}

.allocation-item {
    display: grid;
    grid-template-columns: 1fr minmax(90px, 110px) 36px;
    gap: var(--spacing-xs);
    align-items: center;
}

.allocation-item .allocation-income-select,
.allocation-item .allocation-amount-input {
    margin: 0;
    width: 100%;
    min-width: 0;
    background: var(--bg-primary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
}

.allocation-item .allocation-income-select {
    overflow: hidden;
    text-overflow: ellipsis;
}

.allocation-item .allocation-amount-input {
    text-align: right;
}

.allocation-remove-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-xs);
    background: var(--bg-secondary, var(--bg-primary));
    color: var(--color-expense);
    font-size: 1.25rem;
    line-height: 1;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.allocation-remove-btn:hover {
    background: var(--color-expense);
    border-color: var(--color-expense);
    color: #fff;
}

.allocation-summary {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-xs);
    background: var(--bg-secondary, rgba(255, 255, 255, 0.04));
    border: 1px solid var(--border-color);
}

.allocation-summary .summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.2rem 0;
    font-size: 0.8125rem;
    color: var(--text-secondary, var(--text-muted));
}

.allocation-summary .summary-amount {
    font-weight: 600;
    color: var(--text-primary);
}

.allocation-summary .summary-diff.valid .summary-amount {
    color: var(--color-income, #22c55e);
}

.allocation-summary .summary-diff.invalid .summary-amount {
    color: var(--color-expense, #ef4444);
}

@media (max-width: 480px) {
    .allocation-item {
        grid-template-columns: 1fr 36px;
        grid-template-areas:
            "select remove"
            "amount remove";
    }

    .allocation-item .allocation-income-select {
        grid-area: select;
    }

    .allocation-item .allocation-amount-input {
        grid-area: amount;
    }

    .allocation-item .allocation-remove-btn {
        grid-area: remove;
        align-self: stretch;
        height: auto;
    }
}

/* ============================================
   Income Balance Report Section
   ============================================ */
.income-balance-summary {
    margin-bottom: var(--spacing-lg);
}

.income-balance-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.balance-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

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

.balance-card.primary {
    background: var(--color-income);
    border-color: var(--color-income);
    color: white;
}

.balance-card.success {
    background: var(--color-transfer);
    border-color: var(--color-transfer);
    color: white;
}

.balance-card.info {
    background: #8b5cf6;
    border-color: #8b5cf6;
    color: white;
}

.balance-card .card-icon {
    font-size: 2.5rem;
    opacity: 0.9;
}

.balance-card .card-content {
    flex: 1;
}

.balance-card .card-label {
    font-size: 0.8125rem;
    opacity: 0.9;
    margin-bottom: var(--spacing-xs);
}

.balance-card .card-value {
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.2;
}

.balance-card .card-count,
.balance-card .card-stat {
    font-size: 0.75rem;
    opacity: 0.85;
    margin-top: var(--spacing-xs);
}

.income-stats-row {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.stat-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.stat-icon {
    font-size: 1.2rem;
}

.income-balance-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.income-balance-item {
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.income-balance-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(4px);
}

.income-balance-item.fully-allocated {
    border-left: 4px solid var(--color-expense);
}

.income-balance-item.partially-allocated {
    border-left: 4px solid #f59e0b;
}

.income-balance-item.unallocated {
    border-left: 4px solid var(--color-income);
}

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

.income-main-info {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    flex: 1;
    min-width: 0;
}

.income-category-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.income-text {
    flex: 1;
    min-width: 0;
}

.income-description {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.income-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.income-separator {
    color: var(--border-color);
}

.income-status {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.status-icon {
    font-size: 1.5rem;
}

.income-amounts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-primary);
    border-radius: var(--border-radius-xs);
}

.amount-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-sm);
}

.amount-label {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.amount-value {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-primary);
}

.amount-value.primary {
    color: var(--color-income);
}

.amount-value.allocated {
    color: var(--color-expense);
}

.amount-value.available {
    color: var(--color-transfer);
}

.income-progress {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.progress-bar {
    height: 8px;
    background: var(--bg-primary);
    border-radius: 999px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-income) 0%, var(--color-expense) 100%);
    transition: width var(--transition-normal);
}

.progress-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.progress-percent {
    font-weight: 600;
}

.allocations-count {
    padding: 0.125rem 0.5rem;
    background: var(--bg-primary);
    border-radius: var(--border-radius-xs);
    font-weight: 600;
}

@media (max-width: 640px) {
    .income-balance-cards {
        grid-template-columns: 1fr;
    }
    
    .income-amounts {
        grid-template-columns: 1fr;
    }
    
    .income-stats-row {
        flex-direction: column;
    }
    
    .balance-card .card-icon {
        font-size: 2rem;
    }
    
    .balance-card .card-value {
        font-size: 1.25rem;
    }
}