/* === 變數設定 === */
        :root {
            --primary: #3b82f6;
            --bg: #f3f4f6;
            --card-bg: #ffffff;
            --text-main: #212529;
            --text-muted: #6c757d;
            --border-color: #e5e7eb;

            --chip-bg: #f3f4f6;
            --chip-text: #6b7280;
            --icon-btn-color: #6c757d;

            --floating-nav-height: 65px;
            --fab-size: 56px;
        }

        /* 深色模式變數 */
        [data-theme="dark"] {
            --bg: #121212;
            --card-bg: #1e1e1e;
            --text-main: #e0e0e0;
            --text-muted: #a0a0a0;
            --border-color: #333333;
            --chip-bg: #2c2c2c;
            --chip-text: #d1d5db;
            --icon-btn-color: #a0a0a0;
        }

        html,
        body {
            height: 100%;
            width: 100%;
            overflow: hidden;
            overscroll-behavior: none;
            background-color: var(--bg);
            color: var(--text-main);
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            margin: 0;
            transition: background-color 0.3s, color 0.3s;
            -webkit-user-select: none;
            user-select: none;
        }

        input,
        textarea {
            -webkit-user-select: auto;
            user-select: auto;
        }

        .card,
        .modal-content,
        .list-group-item {
            background-color: var(--card-bg);
            color: var(--text-main);
            border-color: var(--border-color);
        }

        .list-group-item {
            border-color: var(--border-color);
        }

        [data-theme="dark"] .form-control,
        [data-theme="dark"] .form-select {
            background-color: #2c2c2c;
            border-color: #444;
            color: #fff;
        }

        [data-theme="dark"] .form-control::placeholder {
            color: #888;
        }

        [data-theme="dark"] .bg-light {
            background-color: #2c2c2c !important;
        }

        [data-theme="dark"] .text-muted {
            color: #a0a0a0 !important;
        }

        #app {
            display: flex;
            flex-direction: column;
            height: 100dvh;
            width: 100%;
            background-color: var(--bg);
        }

        .top-bar-wrapper {
            flex-shrink: 0;
            background: var(--card-bg);
            box-shadow: 0 1px 5px rgba(0, 0, 0, 0.03);
            z-index: 900;
            border-bottom: 1px solid var(--border-color);
            touch-action: none;
        }

        /* Page container for proper scroll behavior */
        .page-container {
            display: flex;
            flex-direction: column;
            height: 100%;
            overflow: hidden;
            background-color: var(--bg);
        }

        .page-content {
            flex: 1;
            overflow-y: auto;
            -webkit-overflow-scrolling: touch;
            padding-bottom: calc(120px + env(safe-area-inset-bottom, 0px));
            overscroll-behavior: contain;
            background-color: var(--bg);
        }

        /* Fixed layout for pages that should not have elastic bounce */
        .fixed-page-wrapper {
            display: flex;
            flex-direction: column;
            height: 100%;
            overflow: hidden;
            background-color: var(--bg);
        }

        .fixed-page-header {
            flex-shrink: 0;
            background: var(--card-bg);
            box-shadow: 0 1px 5px rgba(0, 0, 0, 0.03);
            z-index: 900;
            border-bottom: 1px solid var(--border-color);
            touch-action: none;
            position: sticky;
            top: 0;
        }

        .fixed-page-content {
            flex: 1;
            overflow-y: auto;
            -webkit-overflow-scrolling: touch;
            padding-bottom: calc(120px + env(safe-area-inset-bottom, 0px));
            overscroll-behavior: contain;
            background-color: var(--bg);
        }



        [data-theme="dark"] .bottom-nav-wrapper {
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5);
            border-color: #333;
        }

        /* 懸浮底部導航 */
        .bottom-nav-wrapper {
            position: fixed;
            bottom: 25px;
            left: 50%;
            transform: translateX(-50%);
            width: 75%;
            /* 加寬導航寬度 */
            max-width: 350px;
            height: var(--floating-nav-height);
            background-color: var(--card-bg);
            border-radius: 50px;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
            border: 1px solid var(--border-color);
            z-index: 2000;
            padding: 0 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            justify-content: center;
            pointer-events: auto;
        }

        /* === 記帳懸浮按鈕 (FAB) === */
        .btn-fab {
            position: fixed;
            bottom: 95px;
            /* 位於底部導航上方 */
            right: 20px;
            width: var(--fab-size);
            height: var(--fab-size);
            border-radius: 50%;
            background-color: var(--primary);
            color: white;
            border: none;
            box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            z-index: 2001;
            transition: transform 0.2s, box-shadow 0.2s;
            pointer-events: auto;
            cursor: pointer;
        }

        .btn-fab:active {
            transform: scale(0.9);
        }

        .btn-fab:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(59, 130, 246, 0.5);
        }

        .btn-scroll-top {
            position: fixed;
            bottom: 100px;
            right: 20px;
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background-color: var(--card-bg);
            color: var(--text-muted);
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            z-index: 1050;
            transition: all 0.2s;
        }

        .btn-scroll-top:active {
            transform: scale(0.9);
        }

        .scrollable-content {
            flex: 1;
            overflow-y: auto;
            -webkit-overflow-scrolling: touch;
            padding-bottom: calc(120px + env(safe-area-inset-bottom, 0px));
            position: relative;
            touch-action: pan-y;
            background-color: var(--bg);
        }

        .app-container {
            padding-left: 12px;
            padding-right: 12px;
            max-width: 1000px;
            width: 100%;
            margin: 0 auto;
        }

        .row-unified {
            --bs-gutter-x: 10px;
            --bs-gutter-y: 10px;
            margin-right: -5px;
            margin-left: -5px;
        }

        .row-unified>* {
            padding-right: 5px;
            padding-left: 5px;
        }

        .mb-unified {
            margin-bottom: 10px !important;
        }

        .top-bar {
            padding: 10px 0 5px 0;
        }

        .month-scroller {
            display: flex;
            overflow-x: auto;
            gap: 8px;
            padding: 5px 15px 8px 15px;
            scrollbar-width: none;
            touch-action: pan-x;
            max-width: 1000px;
            width: 100%;
            margin: 0 auto;
        }

        .month-scroller::-webkit-scrollbar {
            display: none;
        }

        .month-chip {
            white-space: nowrap;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--chip-text);
            background: var(--chip-bg);
            border: 1px solid transparent;
            padding: 6px 14px;
        }

        .month-chip.active {
            background-color: #2563eb;
            color: white;
        }

        .month-chip.custom-active {
            background-color: #7c3aed;
            color: white;
        }

        .month-chip.daily-active {
            background-color: #db2777;
            color: white;
        }

        .month-chip.today-active {
            background-color: #059669;
            color: white;
        }

        .stat-card {
            border: none;
            border-radius: 16px;
            background: var(--card-bg);
            padding: 15px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
            height: 100%;
            position: relative;
            overflow: hidden;
        }

        .stat-title {
            font-size: 0.85rem;
            color: #9ca3af;
            font-weight: 700;
            margin-bottom: 2px;
            position: relative;
            z-index: 2;
        }

        .stat-value {
            font-size: 1.5rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            position: relative;
            z-index: 2;
            color: var(--text-main);
        }

        .stat-bg-icon {
            position: absolute;
            right: -10px;
            bottom: -15px;
            font-size: 4.5rem;
            opacity: 0.12;
            transform: rotate(-15deg);
        }

        .card-box {
            border: none;
            border-radius: 16px;
            background: var(--card-bg);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
        }

        h6.fw-bold,
        .card-header h6 {
            font-size: 0.95rem !important;
        }

        .table {
            --bs-table-bg: transparent;
            --bs-table-color: var(--text-main);
            border-color: var(--border-color);
        }

        .table-responsive {
            overflow-x: auto;
            touch-action: pan-x pan-y;
        }

        .table thead th {
            font-size: 0.85rem;
            color: var(--text-muted);
            cursor: pointer;
            user-select: none;
            vertical-align: middle;
            border-bottom-width: 1px;
            background-color: var(--bg);
            border-color: var(--border-color);
        }

        .col-date {
            width: 18%;
            min-width: 85px;
            padding-left: 10px !important;
            vertical-align: middle;
        }

        .date-wrapper {
            display: flex;
            align-items: center;
        }

        .date-text {
            width: 46px;
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-muted);
            flex-shrink: 0;
            margin-right: 4px;
        }

        .badge-person-circle {
            font-size: 0.7rem;
            width: 22px;
            height: 22px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            color: white;
            font-weight: normal;
            flex-shrink: 0;
        }

        .col-cat {
            width: 16%;
            min-width: 50px;
            text-align: center;
            vertical-align: middle;
        }

        .cat-badge {
            font-size: 0.8rem;
            padding: 4px 2px;
            display: block;
            background-color: var(--bg);
            border: 1px solid var(--border-color);
            border-radius: 6px;
            color: var(--text-main);
            white-space: nowrap;
            overflow: hidden;
        }

        .col-item {
            width: auto;
            padding-left: 8px !important;
            vertical-align: middle;
        }

        .item-text {
            font-size: 0.95rem;
            line-height: 1.4;
            color: var(--text-main);
            word-break: break-all;
        }

        .col-amount {
            width: 16%;
            min-width: 60px;
            text-align: right;
            padding-right: 10px !important;
            vertical-align: middle;
        }

        .amount-text {
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-main);
        }

        .search-input {
            border-radius: 25px;
            background-color: var(--bg);
            border: 1px solid var(--border-color);
            padding-left: 36px;
            padding-right: 30px;
            color: var(--text-main);
        }

        .btn-search-clear {
            position: absolute;
            right: 10px;
            top: 50%;
            transform: translateY(-50%);
            border: none;
            background: transparent;
            color: var(--text-muted);
            font-size: 0.9rem;
            padding: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 20px;
            height: 20px;
            z-index: 10;
            opacity: 0.6;
        }

        .btn-search-clear:hover {
            opacity: 1;
        }

        .btn-minimal {
            width: 40px;
            height: 38px;
            border: none;
            background: transparent;
            color: var(--icon-btn-color);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            transition: color 0.2s, transform 0.1s;
        }

        .btn-minimal:active {
            transform: scale(0.9);
        }

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

        .loading-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--card-bg);
            opacity: 0.95;
            z-index: 9999;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
        }

        .bottom-nav {
            width: 100%;
            height: 100%;
            display: flex;
            justify-content: space-around;
            align-items: center;
        }

        /* 底部圖示按鈕樣式 */
        .bottom-nav-btn {
            width: 60px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: center;
            border: none;
            background: transparent;
            color: #9ca3af;
            cursor: pointer;
            position: relative;
            transition: color 0.2s, transform 0.1s;
        }

        .bottom-nav-btn:active {
            transform: scale(0.9);
        }

        .bottom-nav-btn.active {
            color: #2563eb;
            transform: scale(1.1);
        }

        .bottom-nav-btn i {
            font-size: 1.25rem;
            margin-bottom: 2px;
        }

        .small-nav-text {
            font-size: 0.7rem;
            font-weight: 500;
        }

        .list-group-item-action {
            cursor: pointer;
        }

        .list-group-item {
            border-left: none;
            border-right: none;
            padding: 12px 15px;
        }

        .list-group-item:first-child {
            border-top: none;
        }

        /* Modal 防滑動鎖定 & 文字選取修正 */
        .modal,
        .modal-dialog,
        .modal-content {
            touch-action: none;
        }

        /* Modal z-index higher than FAB button */
        .modal {
            z-index: 2050 !important;
        }

        .modal-backdrop {
            z-index: 2049 !important;
        }

        .modal-body {
            touch-action: pan-y;
            overscroll-behavior: contain;
            -webkit-user-select: text;
            user-select: text;
        }

        /* Auto-resize textarea for notes in modals */
        #entryNoteInput,
        #editNoteInput {
            min-height: 60px;
            max-height: 150px;
            resize: none;
            overflow-y: auto !important;
            line-height: 1.5;
        }

        /* 月份/年份/類別選擇按鈕樣式 */
        .month-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
        }

        .btn-month-select {
            border: 1px solid var(--border-color);
            color: var(--text-main);
            font-weight: 600;
            padding: 10px;
            border-radius: 12px;
        }

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

        .cat-checkbox-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 8px;
        }

        .cat-check-item {
            position: relative;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 8px;
            text-align: center;
            cursor: pointer;
            transition: all 0.2s;
            font-size: 0.9rem;
            background-color: var(--bg);
        }

        .cat-check-item.selected {
            background-color: var(--primary);
            color: white;
            border-color: var(--primary);
        }

        /* === Finance Module CSS === */
        :root {
            --accent-yu: #5dade2;
            /* 淺藍色 for 侑恩 */
            --accent-jie: #52c9a5;
            /* 淺綠色 for 良劼 */
            --accent-exp: #ef4444;
            --accent-cc: #f59e0b;
            --bg-select: #f0f0f0;
        }

        [data-theme="dark"] {
            --accent-yu: #85c1e9;
            /* 更亮的淺藍色 for dark mode */
            --accent-jie: #7dcea0;
            /* 更亮的淺綠色 for dark mode */
            --accent-exp: #f87171;
            --accent-cc: #fbbf24;
            --bg-select: #374151;
        }

        .stats-header-row {
            display: flex;
            gap: 12px;
            margin-bottom: 12px;
        }

        .stats-box {
            flex: 1;
            padding: 16px;
            border-radius: 20px;
            color: white;
            text-align: center;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            display: flex;
            flex-direction: column;
            justify-content: center;
            cursor: pointer;
            transition: all 0.2s ease;
            transform: scale(1);
            opacity: 1;
            -webkit-tap-highlight-color: transparent;
        }

        .stats-box:active {
            transform: scale(0.97);
        }

        .stats-box.inactive {
            opacity: 0.3;
            transform: scale(0.98);
            box-shadow: none;
            filter: grayscale(50%);
        }

        .stats-box-label {
            font-size: 0.9rem;
            opacity: 0.9;
            margin-bottom: 4px;
            font-weight: 600;
            pointer-events: none;
        }

        .stats-box-val {
            font-size: 1.7rem;
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: -0.5px;
            pointer-events: none;
        }

        .box-yu {
            background: linear-gradient(135deg, #5dade2, #3498db);
        }

        .box-jie {
            background: linear-gradient(135deg, #52c9a5, #48c9b0);
        }

        .segmented-control {
            display: flex;
            background: var(--bg);
            padding: 4px;
            border-radius: 12px;
            margin-bottom: 12px;
            border: 1px solid var(--border-color);
        }

        .segmented-btn {
            flex: 1;
            border: none;
            background: transparent;
            padding: 8px;
            border-radius: 8px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-muted);
            cursor: pointer;
            transition: all 0.2s;
        }

        .segmented-btn.active {
            background: var(--card-bg);
            color: var(--text-main);
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
        }

        .fin-list-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-color);
            cursor: pointer;
            user-select: none;
        }

        .date-header {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-muted);
            background: var(--border-color);
            padding: 3px 10px;
            border-radius: 6px;
            display: inline-block;
            margin-top: 12px;
            margin-bottom: 4px;
        }

        .badge-yu {
            background: rgba(93, 173, 226, 0.15);
            color: var(--accent-yu);
        }

        .badge-jie {
            background: rgba(82, 201, 165, 0.15);
            color: var(--accent-jie);
        }

        .anl-stat-box {
            background: var(--bg);
            border-radius: 16px;
            padding: 16px;
            margin-bottom: 20px;
        }

        .anl-row {
            display: flex;
            justify-content: space-between;
            margin-bottom: 8px;
            font-size: 1rem;
        }

        .anl-val {
            font-weight: 700;
            font-size: 1.1rem;
        }

        .setting-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 14px 0;
            border-bottom: 1px solid var(--border-color);
            gap: 10px;
        }

        .color-display {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: inline-block;
            vertical-align: middle;
            border: 2px solid var(--border-color);
            margin-right: 8px;
        }

        .pie-grid {
            display: flex;
            gap: 16px;
            align-items: stretch;
        }

        .pie-col {
            flex: 1;
            min-width: 0;
        }

        @media (max-width: 640px) {
            .pie-grid {
                flex-direction: column;
            }
        }

        .radio-group {
            display: flex;
            gap: 12px;
            margin-bottom: 16px;
        }

        .radio-label {
            flex: 1;
            position: relative;
            cursor: pointer;
        }

        .radio-label input {
            position: absolute;
            opacity: 0;
            width: 0;
            height: 0;
        }

        .radio-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            height: 52px;
            background: transparent;
            border: 1.5px solid var(--border-color);
            border-radius: 14px;
            font-weight: 700;
            color: var(--text-muted);
            font-size: 1rem;
            transition: all 0.2s;
        }

        .radio-label input:checked+.radio-btn.yu {
            background: rgba(155, 89, 182, 0.1);
            color: var(--accent-yu);
            border: 2px solid var(--accent-yu);
        }

        .radio-label input:checked+.radio-btn.jie {
            background: rgba(16, 185, 129, 0.1);
            color: var(--accent-jie);
            border: 2px solid var(--accent-jie);
        }

        /* Default/共同 radio button checked state */
        .radio-label input:checked+.radio-btn:not(.yu):not(.jie) {
            background: rgba(37, 99, 235, 0.1);
            color: var(--primary);
            border: 2px solid var(--primary);
        }