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

/*
 * Design tokens (app-cleanup #4). A lightweight "north star" palette captured
 * from the existing custom CSS — additive only. New/modernized controls use
 * these; older rules can migrate to them incrementally. No framework needed.
 */
:root {
    --color-primary: #007bff;
    --color-primary-hover: #0056b3;
    --color-border: #d7dde5;
    --color-border-strong: #c2cad6;
    --color-text: #333;
    --color-text-muted: #6b7280;
    --color-surface: #fff;
    --radius-sm: 6px;
    --radius-md: 8px;
    --control-height: 40px;
    --focus-ring: 0 0 0 3px rgba(0, 123, 255, 0.18);
    --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.06);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: #f5f5f5;
    padding: 20px;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background-color: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

h1 {
    margin-bottom: 20px;
    color: #333;
    font-size: 24px;
}

.upload-section {
    margin-bottom: 30px;
    padding: 20px;
    background-color: #f8fbff;
    border-radius: 4px;
}

.file-input-wrapper {
    margin-bottom: 10px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #555;
}

/* Custom file picker (#4): native input is visually hidden behind a styled
   label-as-button, with the selection rendered alongside it. */
.file-input-desc {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--color-text-muted);
    font-size: 13px;
}

.file-input-control {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.file-input-control input[type="file"] {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.file-input-label {
    display: inline-flex;
    align-items: center;
    margin-bottom: 0;
    height: var(--control-height);
    padding: 0 18px;
    background-color: var(--color-primary);
    color: #fff;
    font-weight: 600;
    font-size: 14px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background-color 0.15s ease;
}

.file-input-label:hover {
    background-color: var(--color-primary-hover);
}

/* Keyboard focus lands on the hidden input; reflect it on the visible label. */
.file-input-control input[type="file"]:focus-visible + .file-input-label,
.file-input-label:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

.file-input-names {
    font-size: 13px;
    color: var(--color-text-muted);
}

input[type="date"] {
    height: var(--control-height);
    padding: 0 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: inherit;
    color: var(--color-text);
    background-color: var(--color-surface);
    margin: 0 5px;
}

input[type="date"]:hover {
    border-color: var(--color-border-strong);
}

input[type="date"]:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: var(--focus-ring);
}

/* Modern, consistent dropdowns for the filter controls (#4). Scoped to the
   date-range/filter panel so it covers Filter by / Source / Category without
   disturbing in-table category selects. */
#dateRangeSection select {
    height: var(--control-height);
    padding: 0 38px 0 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background-color: var(--color-surface);
    color: var(--color-text);
    font-size: 14px;
    font-family: inherit;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
}

#dateRangeSection select:hover {
    border-color: var(--color-border-strong);
}

#dateRangeSection select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: var(--focus-ring);
}

.date-range-section {
    margin-bottom: 20px;
    padding: 15px;
    background-color: #f0f7ff;
    border-radius: 4px;
    display: none;
}

.date-range-section.show {
    display: block;
}

.date-range-wrapper {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.summary-section {
    margin-bottom: 20px;
    padding: 15px;
    background-color: #f0f7ff;
    border-radius: 4px;
    display: none;
}

.summary-section.show {
    display: block;
}

.summary-stats {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
}

.summary-stat {
    display: flex;
    flex-direction: column;
}

.summary-stat-label {
    font-size: 12px;
    color: #888;
    margin-bottom: 5px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}

.summary-stat-value {
    font-size: 24px;
    font-weight: 600;
}

.summary-stat-value.income {
    color: #2e7d32;
}

.summary-stat-value.spent {
    color: #d32f2f;
}

.file-errors {
    margin-top: 10px;
    padding: 10px;
    background-color: #fff3cd;
    border-radius: 4px;
    display: none;
}

.file-errors.show {
    display: block;
}

.file-error-item {
    margin: 5px 0;
    color: #856404;
    font-size: 14px;
}

button {
    background-color: #007bff;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    margin-top: 10px;
}

button:hover {
    background-color: #0056b3;
}

button:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}

.error-message {
    color: #d32f2f;
    margin-top: 10px;
    padding: 10px;
    background-color: #ffebee;
    border-radius: 4px;
    display: none;
}

.error-message.show {
    display: block;
}

.success-message {
    color: #2e7d32;
    margin-top: 10px;
    padding: 10px;
    background-color: #e8f5e9;
    border-radius: 4px;
    display: none;
}

.success-message.show {
    display: block;
}

.table-container {
    overflow-x: auto;
    margin-top: 20px;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

thead {
    background-color: #f8f9fa;
}

th {
    padding: 12px;
    text-align: left;
    font-weight: 600;
    color: #333;
    border-bottom: 2px solid #dee2e6;
}

th.amount-header {
    text-align: right;
}

th.sortable {
    cursor: pointer;
}

td {
    padding: 10px 12px;
    border-bottom: 1px solid #dee2e6;
}

tbody tr:nth-child(even) {
    background-color: #f8f9fa;
}

tbody tr:hover {
    background-color: #e9ecef;
}

.amount-cell {
    text-align: right;
    font-family: 'Courier New', monospace;
    font-weight: 500;
}

.amount-positive {
    color: #2e7d32;
}

.amount-negative {
    color: #d32f2f;
}

.info-text {
    color: #666;
    font-size: 14px;
    margin-top: 10px;
}

.error-text {
    color: #d32f2f;
    font-size: 14px;
    margin-top: 10px;
}

.dismiss-btn {
    background: none;
    border: none;
    color: #999;
    cursor: pointer;
    font-size: 18px;
    padding: 4px 8px;
    line-height: 1;
    border-radius: 4px;
    transition: all 0.2s;
}

.dismiss-btn:hover {
    background-color: #f0f0f0;
    color: #d32f2f;
}

.dismiss-btn:focus {
    outline: 2px solid #007bff;
    outline-offset: 2px;
}

.toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: #333;
    color: white;
    padding: 12px 20px;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    display: none;
    z-index: 1000;
    max-width: 300px;
}

.toast.show {
    display: block;
}

.toast-undo {
    margin-left: 12px;
    color: #4CAF50;
    text-decoration: underline;
    cursor: pointer;
    font-weight: 500;
}

.toast-undo:hover {
    color: #66BB6A;
}

.dropzone {
    border: 2px dashed #b0c8f0;
    border-radius: 8px;
    padding: 40px;
    text-align: center;
    background-color: #fafafa;
    margin-bottom: 20px;
    transition: all 0.2s;
    cursor: pointer;
}

.dropzone:hover,
.dropzone.dragover {
    border-color: #007bff;
    background-color: #f0f7ff;
}

.dropzone.error {
    border-color: #d32f2f;
    background-color: #ffebee;
}

.dropzone-text {
    color: #666;
    font-size: 14px;
}

.dropzone.dragover .dropzone-text {
    color: #007bff;
    font-weight: 500;
}

.clear-data-btn {
    background-color: #dc3545;
    margin-left: 10px;
}

.clear-data-btn:hover {
    background-color: #c82333;
}

.connected-banks-section {
    margin-bottom: 30px;
    padding: 20px;
    background-color: #f8fbff;
    border-radius: 4px;
}

.connected-banks-heading {
    display: flex;
    align-items: center;
    margin: 0;
    list-style: none;
    cursor: pointer;
    user-select: none;
    font-size: 15px;
    font-weight: 600;
    color: #333;
}

.connected-banks-heading::-webkit-details-marker {
    display: none;
}

.connected-banks-heading::after {
    content: '▾';
    margin-left: auto;
    color: #6c757d;
    transform: rotate(-90deg);
    transition: transform 0.15s ease;
}

.connected-banks-section[open] .connected-banks-heading {
    margin-bottom: 12px;
}

.connected-banks-section[open] .connected-banks-heading::after {
    transform: rotate(0deg);
}

.connected-bank-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    border-bottom: 1px solid #e0e0e0;
}

.connected-bank-row:last-child {
    border-bottom: none;
}

.connected-bank-name {
    flex: 1;
    font-weight: 500;
}

.bank-logo {
    width: 16px;
    height: 16px;
    border-radius: 3px;
    vertical-align: middle;
    margin-right: 6px;
    object-fit: contain;
}

.connected-bank-status {
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
}

.connected-bank-status.status-ok {
    background-color: #d4edda;
    color: #155724;
}

.connected-bank-status.status-error {
    background-color: #f8d7da;
    color: #721c24;
}

.reconnect-btn,
.disconnect-btn {
    margin-top: 0;
    padding: 6px 12px;
    font-size: 13px;
}

.reconnect-btn {
    background-color: #ffc107;
    color: #333;
}

.reconnect-btn:hover {
    background-color: #e0a800;
}

.disconnect-btn {
    background-color: #dc3545;
    color: #fff;
}

.disconnect-btn:hover {
    background-color: #c82333;
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.loading-overlay.show {
    display: flex;
}

.loading-spinner {
    background-color: white;
    padding: 30px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #007bff;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto 15px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.date-error {
    color: #d32f2f;
    font-size: 12px;
    margin-top: 5px;
    display: none;
}

.date-error.show {
    display: block;
}

.editable-description {
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.editable-description:hover {
    background-color: #f0f0f0;
}

.editable-description.editing {
    background-color: white;
    border: 2px solid #007bff;
    outline: none;
}

.description-input {
    width: 100%;
    padding: 4px 8px;
    border: 2px solid #007bff;
    border-radius: 4px;
    font-size: inherit;
    font-family: inherit;
}

.category-cell {
    position: relative;
}

.category-input-wrapper {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.category-select {
    width: 100%;
    padding: 4px 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: inherit;
    font-family: inherit;
    background-color: white;
    cursor: pointer;
}

.category-select:focus {
    border-color: #007bff;
    outline: none;
}

.category-input {
    width: 100%;
    padding: 4px 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 12px;
    font-family: inherit;
}

.category-input:focus {
    border-color: #007bff;
    outline: none;
}

.category-input::placeholder {
    color: #999;
    font-style: italic;
}

.category-filter-section {
    margin-bottom: 15px;
    padding: 10px;
    background-color: #f9f9f9;
    border-radius: 4px;
}

.category-filter-section label {
    margin-right: 10px;
}

.category-filter-section select {
    padding: 6px 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

.bulk-actions {
    margin-bottom: 20px;
    padding: 10px;
    background-color: #f9f9f9;
    border-radius: 4px;
    display: none;
    gap: 12px;
    flex-wrap: wrap;
    align-items: center;
}

.bulk-actions.show {
    display: flex;
}

.bulk-actions-count {
    font-size: 13px;
    color: #555;
    font-weight: 500;
}

.bulk-actions-controls {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: center;
}

.bulk-actions select,
.bulk-actions input {
    padding: 6px 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

.bulk-actions button {
    margin-top: 0;
}

.clear-selection-btn {
    background-color: #6c757d;
}

.clear-selection-btn:hover {
    background-color: #5a6268;
}

.select-column {
    width: 36px;
}

.row-select,
#selectAllCheckbox {
    width: 16px;
    height: 16px;
}

/* App nav bar (transactions page) */
.app-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 30px;
    height: 52px;
    background: #007bff;
    border-radius: 8px 8px 0 0;
    margin: -30px -30px 24px -30px;
}

.app-nav-logo {
    color: #fff;
    font-size: 1rem;
    font-weight: 700;
    text-decoration: none;
    letter-spacing: -0.3px;
}

.app-nav-logo:hover {
    text-decoration: underline;
}

.app-nav-title {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    font-weight: 500;
}

.app-nav-pages {
    display: flex;
    align-items: center;
    gap: 18px;
}

.app-nav-link {
    color: #fff;
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
}

.app-nav-link:hover {
    text-decoration: underline;
}

.app-nav-auth {
    display: flex;
    align-items: center;
    gap: 10px;
}

#authStatus {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.85rem;
}

/* Settings overflow menu in the nav — houses the Show Tax toggle (#5).
   Uses a native <details> disclosure so no JS is needed to open/close. */
.settings-menu {
    position: relative;
}

.settings-menu-trigger {
    list-style: none;
    cursor: pointer;
    user-select: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
    font-size: 16px;
    line-height: 1;
}

.settings-menu-trigger::-webkit-details-marker { display: none; }
.settings-menu-trigger::marker { content: ""; }
.settings-menu-trigger:hover { background: rgba(255, 255, 255, 0.28); }
.settings-menu[open] .settings-menu-trigger { background: rgba(255, 255, 255, 0.32); }

.settings-menu-panel {
    position: absolute;
    right: 0;
    top: 40px;
    min-width: 190px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: 0 6px 20px rgba(16, 24, 40, 0.16);
    padding: 12px 14px;
    z-index: 50;
}

.settings-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0;
    font-weight: 500;
    font-size: 14px;
    color: var(--color-text);
    cursor: pointer;
    white-space: nowrap;
}

.settings-toggle input {
    width: auto;
    margin: 0;
    cursor: pointer;
}

#authBtn {
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 4px;
    padding: 4px 12px;
    font-size: 0.85rem;
    cursor: pointer;
}

#authBtn:hover {
    background: rgba(255, 255, 255, 0.25);
}

/* ============================================================
   View toggle (Table / Calendar)
   ============================================================ */
.view-toggle {
    display: flex;
    gap: 4px;
    margin-top: 20px;
}

.view-toggle-btn {
    margin-top: 0;
    padding: 6px 18px;
    background: #fff;
    color: #555;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
}

.view-toggle-btn:hover {
    background: #f0f0f0;
    color: #333;
}

.view-toggle-btn.active {
    background: #007bff;
    color: #fff;
    border-color: #007bff;
}

/* ============================================================
   Calendar view
   ============================================================ */
.calendar-view {
    margin-top: 16px;
}

.calendar-nav {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 14px;
}

.calendar-nav-btn {
    margin-top: 0;
    background: #fff;
    color: #333;
    border: 1px solid #ccc;
    border-radius: 6px;
    padding: 4px 12px;
    font-size: 16px;
    cursor: pointer;
    line-height: 1.4;
}

.calendar-nav-btn:hover:not(:disabled) {
    background: #f0f0f0;
}

.calendar-nav-btn:disabled {
    opacity: 0.35;
    cursor: default;
    background: #fff;
}

.calendar-month-label {
    font-weight: 600;
    font-size: 16px;
    color: #333;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 6px;
}

.calendar-col-header {
    text-align: center;
    font-size: 11px;
    font-weight: 600;
    color: #888;
    padding: 4px 0;
    text-transform: uppercase;
    letter-spacing: 0.4px;
}

.calendar-day-empty {
    /* placeholder cell */
}

.calendar-day {
    border: 1px solid #e5e5e5;
    border-radius: 6px;
    padding: 6px 8px;
    min-height: 68px;
    background: #fafafa;
    font-size: 12px;
}

.calendar-day.has-transactions {
    cursor: pointer;
    background: #fff;
}

.calendar-day.has-transactions:hover {
    border-color: #aaa;
    background: #f5f5f5;
}

.calendar-day.expanded {
    border-color: #007bff;
    background: #f0f7ff;
}

.calendar-day-num {
    display: block;
    font-weight: 600;
    font-size: 13px;
    color: #333;
    margin-bottom: 4px;
}

.calendar-day-income {
    display: block;
    color: #2e7d32;
    font-size: 11px;
    font-weight: 500;
}

.calendar-day-expense {
    display: block;
    color: #d32f2f;
    font-size: 11px;
    font-weight: 500;
}

.calendar-day-detail {
    margin-top: 10px;
    border: 1px solid #007bff;
    border-radius: 8px;
    padding: 14px 16px;
    background: #fff;
}

.calendar-day-detail-header {
    font-weight: 600;
    font-size: 14px;
    color: #333;
    margin-bottom: 10px;
}

.calendar-detail-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 7px 0;
    border-bottom: 1px solid #f0f0f0;
    font-size: 13px;
}

.calendar-detail-row:last-child {
    border-bottom: none;
}

.calendar-detail-desc {
    flex: 1;
    color: #333;
}

.calendar-detail-source {
    color: #999;
    font-size: 11px;
    white-space: nowrap;
}

.calendar-detail-amount {
    font-weight: 600;
    white-space: nowrap;
    font-family: 'Courier New', monospace;
}

@media (max-width: 768px) {
    body {
        padding: 10px;
    }

    .container {
        padding: 15px;
    }

    .summary-stats {
        flex-direction: column;
        gap: 15px;
    }

    .date-range-wrapper {
        flex-direction: column;
        align-items: flex-start;
    }

    input[type="date"] {
        width: 100%;
        margin: 5px 0;
    }

    #dateRangeSection select {
        width: 100%;
    }

    table {
        font-size: 14px;
    }

    th, td {
        padding: 8px;
    }
}

/* ============================================================================
   AI ANALYSIS PANEL
   ============================================================================ */

.ai-section {
    margin-bottom: 20px;
    padding: 15px;
    background-color: #f8f4ff;
    border-radius: 4px;
    border-left: 3px solid #7c3aed;
}

.ai-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.ai-new-chat-btn {
    background: none;
    border: 1px solid #c4b5fd;
    color: #7c3aed;
    padding: 4px 10px;
    font-size: 12px;
    border-radius: 4px;
    margin-top: 0;
    cursor: pointer;
}

.ai-new-chat-btn:hover {
    background-color: #ede9fe;
}

.ai-quick-prompts {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.ai-prompt-btn {
    background-color: #ede9fe;
    color: #5b21b6;
    border: 1px solid #c4b5fd;
    padding: 6px 12px;
    font-size: 13px;
    font-weight: 500;
    margin-top: 0;
    border-radius: 20px;
    cursor: pointer;
}

.ai-prompt-btn:hover {
    background-color: #ddd6fe;
}

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

.ai-conversation {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 12px;
    max-height: 400px;
    overflow-y: auto;
}

.ai-message {
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 14px;
    line-height: 1.6;
    max-width: 90%;
    word-wrap: break-word;
}

.ai-message.user {
    background-color: #7c3aed;
    color: white;
    align-self: flex-end;
}

.ai-message.assistant {
    background-color: white;
    border: 1px solid #e5e7eb;
    align-self: flex-start;
}

.ai-message.assistant ul {
    padding-left: 18px;
    margin: 4px 0;
}

.ai-message.loading {
    background-color: #f3f4f6;
    color: #9ca3af;
    align-self: flex-start;
    font-style: italic;
}

.ai-input-row {
    display: flex;
    gap: 8px;
}

.ai-input-row textarea {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    font-family: inherit;
    min-height: 40px;
    max-height: 120px;
    resize: none;
    overflow-y: auto;
    line-height: 1.4;
}

.ai-input-row textarea:disabled {
    background-color: #f3f4f6;
}

.ai-input-row button {
    margin-top: 0;
    padding: 8px 16px;
    background-color: #7c3aed;
}

.ai-input-row button:hover {
    background-color: #5b21b6;
}

.ai-input-row button:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}

.ai-context-details {
    margin-bottom: 12px;
}

.ai-context-details summary {
    font-size: 12px;
    color: #7c3aed;
    cursor: pointer;
    user-select: none;
    margin-bottom: 6px;
}

.ai-context-details textarea {
    width: 100%;
    box-sizing: border-box;
    padding: 8px 10px;
    border: 1px solid #c4b5fd;
    border-radius: 6px;
    font-size: 13px;
    font-family: inherit;
    color: #374151;
    background-color: #faf5ff;
    resize: vertical;
    min-height: 56px;
    line-height: 1.4;
}

.ai-message.assistant.ai-message--question {
    border-left: 3px solid #f59e0b;
    background-color: #fffbeb;
}

/* ======================================================================
   TAX FEATURES
   ====================================================================== */

.tax-deduction-pill {
    background-color: #fef3c7;
    color: #92400e;
    border: 1px solid #fcd34d;
    padding: 1px 6px;
    margin-left: 6px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    vertical-align: middle;
    white-space: nowrap;
    display: inline-block;
}

.pending-badge {
    background-color: #e0f2fe;
    color: #0369a1;
    border: 1px solid #7dd3fc;
    padding: 1px 6px;
    margin-left: 6px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    vertical-align: middle;
    white-space: nowrap;
    display: inline-block;
}

/* Phase 4 (features-plan/PLAID-CLEANUP-PLAN.md): internal transfers stay
   visible in the list but are visually de-emphasized and excluded from
   Income/Expense totals. */
.transfer-tag {
    background-color: #eee;
    color: #666;
    padding: 2px 6px;
    margin-left: 6px;
    border-radius: 4px;
    font-size: 11px;
    vertical-align: middle;
    white-space: nowrap;
    display: inline-block;
}

.amount-deemphasized {
    opacity: 0.6;
}

.count-as-income-btn {
    background: none;
    border: 1px solid #d1d5db;
    color: #555;
    cursor: pointer;
    font-size: 11px;
    padding: 1px 6px;
    margin-left: 6px;
    border-radius: 4px;
    transition: all 0.15s;
    line-height: 1.6;
}

.count-as-income-btn:hover {
    border-color: #2e7d32;
    color: #2e7d32;
}

.tax-filter-btn {
    background: none;
    border: 1px solid #d1d5db;
    color: #555;
    padding: 5px 12px;
    font-size: 13px;
    font-weight: 500;
    margin-top: 0;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.15s;
}

.tax-filter-btn:hover {
    border-color: #b45309;
    color: #b45309;
}

.tax-filter-btn.active {
    background-color: #fef3c7;
    border-color: #f59e0b;
    color: #92400e;
}

.deduction-btn {
    background: none;
    border: none;
    color: #ccc;
    cursor: pointer;
    font-size: 13px;
    padding: 3px 5px;
    border-radius: 4px;
    transition: all 0.15s;
    line-height: 1;
    margin-top: 0;
}

.deduction-btn:hover {
    background-color: #fef3c7;
    color: #92400e;
}

.deduction-btn.tagged {
    color: #d97706;
}

/* ── Tax tag modal ── */
.tax-tag-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.45);
    z-index: 3000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tax-tag-modal {
    background: white;
    border-radius: 10px;
    padding: 24px;
    width: 360px;
    max-width: calc(100vw - 40px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.18);
}

.tax-tag-modal-title {
    font-size: 16px;
    font-weight: 700;
    color: #333;
    margin-bottom: 4px;
}

.tax-tag-modal-bulk-note {
    font-size: 12px;
    color: #888;
    margin-bottom: 14px;
    font-style: italic;
    display: none;
}

.tax-tag-modal-field {
    margin-bottom: 14px;
}

.tax-tag-modal-field label {
    display: block;
    font-size: 12px;
    color: #666;
    margin-bottom: 4px;
    font-weight: 600;
}

.tax-tag-modal-field select,
.tax-tag-modal-field input[type="text"],
.tax-tag-modal-field input[type="number"] {
    width: 100%;
    padding: 7px 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    font-family: inherit;
    margin-top: 0;
}

input.custom-percent {
    width: 80px !important;
    margin-top: 6px !important;
    display: none;
}

.tax-tag-modal-actions {
    display: flex;
    gap: 8px;
    margin-top: 18px;
    flex-wrap: wrap;
}

.tax-tag-modal-actions button {
    margin-top: 0;
    padding: 8px 14px;
    font-size: 13px;
}

.tax-tag-save-btn {
    background-color: #d97706;
    flex: 1;
}

.tax-tag-save-btn:hover {
    background-color: #b45309;
}

.tax-tag-remove-btn {
    background-color: #fff;
    color: #d32f2f;
    border: 1px solid #d32f2f;
}

.tax-tag-remove-btn:hover {
    background-color: #ffebee;
}

.tax-tag-cancel-btn {
    background-color: #fff;
    color: #555;
    border: 1px solid #ccc;
}

.tax-tag-cancel-btn:hover {
    background-color: #f5f5f5;
}

/* ── Tax summary panel ── */
.tax-summary-quarters {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin: 10px 0;
}

.tax-summary-quarter {
    background: #fffbeb;
    border: 1px solid #fde68a;
    border-radius: 6px;
    padding: 8px 12px;
}

.tax-summary-quarter-label {
    font-size: 11px;
    color: #92400e;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.4px;
}

.tax-summary-quarter-amount {
    font-size: 15px;
    font-weight: 600;
    color: #333;
    margin-top: 2px;
}

.tax-summary-quarter-amount.empty {
    color: #ccc;
}

.tax-summary-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 5px 0;
    border-bottom: 1px solid #f0f0f0;
    font-size: 14px;
}

.tax-summary-row:last-child {
    border-bottom: none;
}

.tax-summary-totals {
    margin: 10px 0;
    padding: 10px 0;
    border-top: 2px solid #e8e8e8;
    border-bottom: 2px solid #e8e8e8;
}

.tax-summary-savings {
    font-size: 22px;
    font-weight: 700;
    color: #2e7d32;
}

.tax-summary-deductible {
    font-size: 14px;
    color: #92400e;
    font-weight: 600;
}

.tax-summary-section-label {
    font-size: 11px;
    color: #888;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: 12px 0 6px;
}

.tax-summary-controls {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 14px;
    font-size: 13px;
    color: #666;
    flex-wrap: wrap;
}

.tax-summary-rate-input {
    width: 55px;
    padding: 4px 6px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 13px;
    font-family: inherit;
    margin-top: 0;
}

.tax-summary-year-select {
    padding: 4px 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 13px;
    font-family: inherit;
    margin-top: 0;
}

.tax-copy-btn {
    background: none;
    border: 1px solid #ccc;
    color: #555;
    padding: 4px 10px;
    font-size: 12px;
    font-weight: 500;
    margin-top: 0;
    margin-left: auto;
    border-radius: 4px;
    cursor: pointer;
}

.tax-copy-btn:hover {
    border-color: #b45309;
    color: #b45309;
    background-color: #fffbeb;
}

.bulk-deduction-btn {
    background-color: #d97706;
}

.bulk-deduction-btn:hover {
    background-color: #b45309;
}

/* ============================================================================
   MOBILE APP LAYER  (≤640px)
   ----------------------------------------------------------------------------
   A deliberately app-like phone experience, not just a narrower website. The
   glance we optimise for: "how am I doing on spending vs income for a period?"
   Desktop chrome that makes no sense on a phone (CSV drag-drop, bulk editing,
   tax tooling, the 8-button quarter grid) is hidden; a period-chip picker + a
   summary hero card + a fixed bottom tab bar take over. See getPeriodRange().

   Mobile-only elements are hidden by default here and revealed in the query
   below, so they never appear on desktop.
   ============================================================================ */

.mobile-period-bar {
    display: none;
}

@media (max-width: 640px) {
    /* --- Global feel: tighter margins (bottom-nav clearance is in mobile-nav.css) */
    body {
        padding: 0;
        background-color: #f3f4f6;
    }

    .container {
        padding: 14px 14px 8px;
        box-shadow: none;
        border-radius: 0;
    }

    .app-nav {
        flex-wrap: wrap;
        gap: 8px;
        margin-bottom: 14px;
    }

    /* The page name is redundant with the bottom tab bar's active label. */
    .app-nav-pages {
        display: none;
    }

    /* --- Hide desktop-only chrome (per the mobile scope decision) ----------- */
    #csvUploadSection,
    #clearDataBtn,
    #toggleTaxBtn,
    .tax-filter-btn {
        display: none !important;
    }

    .bulk-actions,
    #taxSummarySection {
        display: none !important;
    }

    /* The whole desktop date/filter panel collapses; the period chips replace
       it. "Custom" re-opens just the from/to inputs (mobile-show-custom). */
    #dateRangeSection {
        display: none;
    }

    #dateRangeSection.mobile-show-custom {
        display: block;
        margin-bottom: 14px;
    }

    #dateRangeSection.mobile-show-custom > * {
        display: none;
    }

    #dateRangeSection.mobile-show-custom .date-range-wrapper {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        gap: 6px;
    }

    /* Keep Connect Bank + Sync reachable — Lamar links banks from his phone —
       but drop the desktop card wrapper so it isn't an empty box for guests. */
    .upload-section {
        margin-bottom: 14px;
        padding: 0;
        background: none;
    }

    .upload-actions {
        display: flex;
        gap: 10px;
    }

    /* Empty status bars carry a background + padding; only show when populated. */
    .upload-section .file-errors:empty,
    .upload-section .error-message:empty,
    .upload-section .success-message:empty {
        display: none;
    }

    #connectBankBtn,
    #syncNowBtn {
        flex: 1;
        margin: 0;
        padding: 11px 12px;
        font-size: 14px;
    }

    /* --- Period chips: the "which window am I looking at" control ----------- */
    .mobile-period-bar {
        display: flex;
        gap: 8px;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        padding: 2px 0 14px;
    }

    .mobile-period-bar::-webkit-scrollbar {
        display: none;
    }

    .period-chip {
        flex: 0 0 auto;
        margin: 0;
        padding: 8px 15px;
        border: 1px solid #d1d5db;
        border-radius: 999px;
        background-color: #fff;
        color: #4b5563;
        font-size: 14px;
        font-weight: 500;
        white-space: nowrap;
        cursor: pointer;
    }

    .period-chip.active {
        background-color: #1f2937;
        border-color: #1f2937;
        color: #fff;
    }

    /* --- Summary hero: the number Lou opens the app to see ------------------ */
    .summary-section {
        margin: 0 0 16px;
        padding: 18px 16px;
        background-color: #fff;
        border-radius: 16px;
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    }

    .summary-stats {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 14px 12px;
        flex-direction: unset;
    }

    /* Net Cash spans the full width and sits under Income/Expenses. */
    .summary-stats .summary-stat:nth-child(3) {
        grid-column: 1 / -1;
        margin-top: 2px;
        padding-top: 14px;
        border-top: 1px solid #eef0f2;
    }

    .summary-stat-label {
        font-size: 12px;
        text-transform: uppercase;
        letter-spacing: 0.04em;
        color: #9ca3af;
    }

    .summary-stat-value {
        font-size: 26px;
        font-weight: 700;
        margin-top: 4px;
    }

    .summary-stats .summary-stat:nth-child(3) .summary-stat-value {
        font-size: 30px;
    }

    /* Keep only "Ask Claude" in the summary; the bottom nav offers it too, but
       an in-context entry point right under the numbers is worth the redundancy. */
    #summarySection > div:last-child {
        margin-top: 16px;
    }

    #toggleAiBtn {
        width: 100%;
        margin: 0;
        padding: 11px;
    }

    /* --- Touch-friendly transaction rows ----------------------------------- */
    .view-toggle {
        margin-top: 4px;
    }

    #tableContainer table {
        font-size: 14px;
    }

    #tableContainer th,
    #tableContainer td {
        padding: 10px 8px;
    }

    /* Bottom tab bar lives in the shared mobile-nav.css (linked by both pages). */
}

/* ============================================================================
   SHARED APP-SHELL ALIGNMENT
   Page-specific refinements for the common components in app-shell.css.
   ============================================================================ */

body.theme-app {
    padding: 0;
    color: var(--app-text);
    background: var(--app-bg);
    -webkit-font-smoothing: antialiased;
}

.container.app-page {
    max-width: var(--app-content-width);
    padding: 38px 24px 64px;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
}

.app-nav {
    width: 100%;
    height: auto;
    min-height: 64px;
    margin: 0;
    padding: 0;
    border-radius: 0;
    border-bottom: 1px solid var(--app-border);
    background: rgba(243, 246, 250, 0.94);
}

.app-nav-logo {
    color: var(--app-text);
    font-size: 1.08rem;
    letter-spacing: -0.01em;
}

.app-nav-logo:hover {
    color: var(--app-accent);
    text-decoration: none;
}

.app-nav-title,
.app-nav-link {
    color: var(--app-muted);
    font-size: 0.86rem;
    font-weight: 600;
}

.app-nav-link:hover {
    color: var(--app-text);
    text-decoration: none;
}

#authStatus {
    color: var(--app-muted);
}

#authBtn.app-button {
    min-height: 34px;
    padding: 6px 12px;
    color: var(--app-text);
    border-color: var(--app-border-strong);
    border-radius: var(--app-radius-sm);
    background: var(--app-surface);
}

#authBtn.app-button:hover {
    color: var(--app-accent);
    border-color: var(--app-accent);
    background: var(--app-accent-soft);
}

.settings-menu-trigger {
    color: var(--app-muted);
    background: var(--app-surface);
    border: 1px solid var(--app-border);
}

.settings-menu-trigger:hover,
.settings-menu[open] .settings-menu-trigger {
    color: var(--app-accent);
    background: var(--app-accent-soft);
}

.transactions-pagehead .app-pagehead-actions {
    flex-wrap: nowrap;
}

button.app-button {
    min-height: 40px;
    margin: 0;
    padding: 8px 15px;
    border: 1px solid transparent;
    border-radius: var(--app-radius-sm);
    background: var(--app-accent);
    color: #fff;
}

button.app-button:hover:not(:disabled) {
    background: var(--app-accent-strong);
}

button.app-button-secondary {
    color: var(--app-text);
    border-color: var(--app-border-strong);
    background: var(--app-surface);
}

button.app-button-secondary:hover:not(:disabled) {
    color: var(--app-accent);
    border-color: var(--app-accent);
    background: var(--app-accent-soft);
}

button.app-button-danger,
#clearDataBtn.app-button-danger {
    margin: 0;
    color: var(--app-negative);
    border-color: rgba(194, 65, 59, 0.3);
    background: transparent;
}

button.app-button-danger:hover:not(:disabled),
#clearDataBtn.app-button-danger:hover {
    color: #fff;
    border-color: var(--app-negative);
    background: var(--app-negative);
}

.upload-section.app-card,
.connected-banks-section.app-card,
.bulk-actions.app-card,
.ai-section.app-card,
.results-card.app-card,
#taxSummarySection.app-card {
    padding: 22px 24px;
    margin-bottom: 20px;
    border: 1px solid var(--app-border);
    border-radius: var(--app-radius-lg);
    background: var(--app-surface);
    box-shadow: var(--app-shadow);
}

.data-management-actions {
    display: flex;
    justify-content: flex-end;
}

#csvUploadSection + .data-management-actions {
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid var(--app-border);
}

.connected-banks-heading {
    color: var(--app-text);
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.connected-bank-row {
    padding: 11px 0;
    border-color: var(--app-border);
}

.date-range-section.app-filter-card {
    align-items: end;
    grid-template-columns: minmax(290px, 2fr) repeat(3, minmax(135px, 1fr)) auto;
    gap: 14px;
    padding: 20px 22px;
    margin-bottom: 20px;
    border: 1px solid var(--app-border);
    border-radius: var(--app-radius-lg);
    background: var(--app-surface);
    box-shadow: var(--app-shadow);
}

.date-range-section.app-filter-card.show {
    display: grid;
}

.filter-field,
.date-range-wrapper.filter-field {
    display: flex;
    align-items: stretch;
    flex-direction: column;
    gap: 6px;
    min-width: 0;
}

.date-range-wrapper.filter-field-dates {
    display: grid;
    grid-template-columns: auto minmax(118px, 1fr) auto minmax(118px, 1fr);
    align-items: center;
    gap: 6px;
}

.filter-field label,
.date-range-wrapper.filter-field label,
.category-filter-section.filter-field label {
    margin: 0;
    color: var(--app-muted);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.date-range-wrapper.filter-field input[type="date"] {
    width: 100%;
    min-width: 0;
    margin: 0;
}

.filter-field select,
.category-filter-section.filter-field select {
    width: 100%;
    min-width: 0;
}

.filter-field-action {
    justify-content: flex-end;
}

#taxFilterBtn.app-button {
    min-height: var(--control-height);
    white-space: nowrap;
}

.summary-section.app-metric-card {
    padding: 28px 30px;
    margin-bottom: 20px;
    border: 1px solid var(--app-border);
    border-radius: var(--app-radius-lg);
    background: var(--app-surface);
    box-shadow: var(--app-shadow);
}

.summary-stats.app-metric-grid {
    gap: 0;
}

.summary-stat.app-metric {
    padding: 0 26px;
}

.summary-stat.app-metric:first-child {
    padding-left: 0;
}

.summary-stat.app-metric:last-child {
    padding-right: 0;
}

.summary-stat-label.app-metric-label {
    margin: 0;
    color: var(--app-muted);
}

.summary-stat-value.app-metric-value {
    margin-top: 6px;
    color: var(--app-text);
    font-family: var(--app-display);
    font-size: clamp(1.7rem, 3.4vw, 2.45rem);
    font-weight: 650;
}

.summary-stat-value.app-positive,
.summary-stat-value.income {
    color: var(--app-positive);
}

.summary-stat-value.app-negative,
.summary-stat-value.spent {
    color: var(--app-negative);
}

.summary-actions {
    justify-content: flex-start;
    margin-top: 22px;
    padding-top: 18px;
    border-top: 1px solid var(--app-border);
}

.tax-summary-content {
    margin-top: 10px;
}

.ai-section.app-card {
    border-left: 3px solid #7c3aed;
    background: #fbfaff;
}

.ai-quick-prompts-secondary {
    margin-top: 6px;
    padding-top: 10px;
    border-top: 1px solid #ede9fe;
}

.ai-error {
    margin-top: 8px;
}

.results-card {
    min-width: 0;
}

.results-card-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 8px;
}

.results-card-title {
    margin: 0;
    color: var(--app-text);
    font-size: 1rem;
    font-weight: 700;
}

.results-card-subtitle {
    margin-top: 3px;
    color: var(--app-muted);
    font-size: 0.8rem;
}

.view-toggle.app-segmented {
    flex: 0 0 auto;
    margin: 0;
}

.view-toggle.app-segmented .view-toggle-btn {
    min-height: 34px;
    margin: 0;
    padding: 6px 14px;
    border: 0;
    border-radius: 7px;
    color: var(--app-muted);
    background: transparent;
}

.view-toggle.app-segmented .view-toggle-btn:hover {
    color: var(--app-text);
    background: var(--app-surface);
}

.view-toggle.app-segmented .view-toggle-btn.active {
    color: var(--app-text);
    background: var(--app-surface);
    box-shadow: 0 1px 3px rgba(15, 23, 42, 0.1);
}

.table-container {
    margin-top: 8px;
}

table.financial-table {
    margin-top: 0;
}

table.financial-table thead,
table.financial-table tbody tr:nth-child(even) {
    background: transparent;
}

table.financial-table th {
    padding: 11px 12px;
    color: var(--app-dim);
    border-bottom: 1px solid var(--app-border-strong);
    background: transparent;
    font-size: 0.69rem;
    letter-spacing: 0.09em;
    text-transform: uppercase;
}

table.financial-table td {
    padding: 12px;
    border-bottom: 1px solid var(--app-border);
}

table.financial-table tbody tr:hover {
    background: var(--app-surface-raised);
}

@media (max-width: 1040px) {
    .date-range-section.app-filter-card {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .filter-field-dates {
        grid-column: 1 / -1;
    }
}

@media (max-width: 760px) {
    .container.app-page {
        padding: 28px 16px 48px;
    }

    .date-range-section.app-filter-card {
        grid-template-columns: 1fr 1fr;
    }

    .summary-stat.app-metric:nth-child(3) {
        padding: 18px 0 0;
    }
}

@media (max-width: 640px) {
    body.theme-app {
        padding-bottom: calc(64px + env(safe-area-inset-bottom));
    }

    .app-nav {
        min-height: 58px;
        margin: 0;
    }

    .container.app-page {
        padding: 22px 14px 36px;
    }

    .transactions-pagehead {
        margin-bottom: 16px;
    }

    .transactions-pagehead .app-pagehead-actions {
        display: grid;
        grid-template-columns: 1fr 1fr;
    }

    .upload-section.app-card,
    .connected-banks-section.app-card,
    .bulk-actions.app-card,
    .ai-section.app-card,
    .results-card.app-card,
    #taxSummarySection.app-card {
        padding: 18px 16px;
        border-radius: 15px;
    }

    .upload-section.app-card {
        padding: 0;
        border: 0;
        background: transparent;
        box-shadow: none;
    }

    .date-range-section.app-filter-card.mobile-show-custom {
        padding: 16px;
        border-radius: 15px;
    }

    .date-range-section.app-filter-card.mobile-show-custom .date-range-wrapper {
        display: grid;
        grid-template-columns: 1fr;
    }

    .summary-section.app-metric-card {
        padding: 20px 17px;
        border-radius: 15px;
    }

    .summary-stats.app-metric-grid {
        gap: 14px 0;
    }

    .summary-stat.app-metric {
        padding: 0 14px;
    }

    .summary-stat.app-metric:first-child {
        padding-left: 0;
    }

    .summary-stat.app-metric:nth-child(2) {
        padding-right: 0;
    }

    .summary-stat-value.app-metric-value,
    .summary-stats .summary-stat:nth-child(3) .summary-stat-value {
        font-size: 1.75rem;
    }

    .summary-actions {
        margin-top: 16px;
        padding-top: 16px;
    }

    .results-card-header {
        align-items: flex-start;
        flex-direction: column;
    }

    .results-card-header .view-toggle {
        width: 100%;
    }

    .results-card-header .view-toggle-btn {
        flex: 1;
    }
}