/* ==========================================================================
   CSS 設計系統與樣式宣告 (會計工作流學習網)
   ========================================================================== */

/* 全域變數定義 */
:root {
    --bg-primary: #0f172a;       /* 深板岩灰 - 網頁背景 */
    --bg-secondary: #1e293b;     /* 板岩灰 - 卡片與區塊背景 */
    --bg-tertiary: #334155;      /* 淺板岩灰 - 輸入框與標籤背景 */
    --text-primary: #f8fafc;     /* 白色文字 */
    --text-secondary: #94a3b8;   /* 灰色輔助文字 */
    --primary: #3b82f6;          /* 寶石藍 - 主題強調色 */
    --primary-glow: rgba(59, 130, 246, 0.15);
    --primary-hover: #2563eb;
    --success: #10b981;          /* 翡翠綠 - 成功、借貸平衡色 */
    --success-glow: rgba(16, 185, 129, 0.15);
    --danger: #ef4444;           /* 珊瑚紅 - 警告、借貸不平衡色 */
    --danger-glow: rgba(239, 68, 68, 0.15);
    --warning: #f59e0b;          /* 琥珀橘 */
    --border: #334155;           /* 邊框顏色 */
    --border-focus: #475569;     /* 聚焦邊框顏色 */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --font-main: 'Noto Sans TC', sans-serif;
    --font-code: 'Outfit', sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 基礎重設與排版 */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-main);
    line-height: 1.6;
    padding-bottom: 2rem;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    letter-spacing: -0.025em;
}

/* 捲軸美化 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--border-focus);
}

/* 頁首樣式 (Header) */
.app-header {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 1.5rem 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.brand {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-icon {
    font-size: 2.2rem;
    background: linear-gradient(135deg, var(--primary), var(--success));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.brand-text h1 {
    font-size: 1.6rem;
    background: linear-gradient(to right, var(--text-primary), var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.brand-text p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* 進度條樣式 */
.overall-progress-container {
    min-width: 280px;
    flex-grow: 0.3;
}

.progress-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    font-size: 0.85rem;
}

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

.progress-val {
    font-family: var(--font-code);
    font-weight: 700;
    color: var(--success);
}

.progress-track {
    background-color: var(--bg-primary);
    border-radius: 999px;
    height: 10px;
    overflow: hidden;
    border: 1px solid var(--border);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(to right, var(--primary), var(--success));
    border-radius: 999px;
    width: 0%;
    transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 主要排版區 (Main) */
.app-main {
    max-width: 1400px;
    margin: 2rem auto;
    padding: 0 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

/* 區塊通用標題 */
.section-title {
    font-size: 1.5rem;
    position: relative;
    padding-left: 0.75rem;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
}

.section-title::before {
    content: '';
    position: absolute;
    left: 0;
    width: 4px;
    height: 1.2rem;
    background: linear-gradient(to bottom, var(--primary), var(--success));
    border-radius: 2px;
}

.section-subtitle {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

/* 工作流程步驟看板 Grid */
.workflow-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.25rem;
}

.workflow-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.workflow-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: transparent;
    transition: var(--transition);
}

.workflow-card:hover {
    transform: translateY(-5px);
    border-color: var(--border-focus);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

.workflow-card.active {
    border-color: var(--primary);
    background-color: var(--primary-glow);
}

.workflow-card.active::after {
    background: var(--primary);
}

.workflow-card.completed {
    border-color: var(--success);
    background-color: var(--success-glow);
}

.workflow-card.completed::after {
    background: var(--success);
}

.card-step-num {
    font-family: var(--font-code);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.workflow-card.active .card-step-num {
    color: var(--primary);
}

.workflow-card.completed .card-step-num {
    color: var(--success);
}

.workflow-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.card-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-badge {
    display: inline-block;
    font-size: 0.75rem;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    margin-top: 1rem;
    font-weight: 500;
}

.status-todo {
    background-color: rgba(245, 158, 11, 0.2);
    color: var(--warning);
}

.status-completed {
    background-color: rgba(16, 185, 129, 0.2);
    color: var(--success);
}

.status-locked {
    background-color: rgba(148, 163, 184, 0.1);
    color: var(--text-secondary);
}

/* SOP 詳細面板區 */
.sop-detail-section {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
}

.panel-header {
    background-color: rgba(255,255,255,0.02);
    border-bottom: 1px solid var(--border);
    padding: 1.25rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.panel-header h2 {
    font-size: 1.25rem;
}

.step-indicator {
    font-family: var(--font-code);
    font-size: 0.85rem;
    background-color: var(--bg-tertiary);
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    color: var(--text-secondary);
}

.panel-content {
    padding: 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
}

@media (max-width: 900px) {
    .panel-content {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

.sop-text-area h3, .sop-checklist-area h3 {
    font-size: 1.05rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.sop-text-area p {
    font-size: 0.95rem;
    color: var(--text-primary);
    line-height: 1.7;
}

/* 檢查清單項目 */
.checklist-hint {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.checklist-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.checkbox-container {
    display: flex;
    align-items: flex-start;
    position: relative;
    cursor: pointer;
    font-size: 0.9rem;
    user-select: none;
    padding-left: 30px;
}

.checkbox-container input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.checkmark {
    position: absolute;
    top: 3px;
    left: 0;
    height: 20px;
    width: 20px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 4px;
    transition: var(--transition);
}

.checkbox-container:hover input ~ .checkmark {
    border-color: var(--primary);
}

.checkbox-container input:checked ~ .checkmark {
    background-color: var(--success);
    border-color: var(--success);
}

.checkmark::after {
    content: "";
    position: absolute;
    display: none;
}

.checkbox-container input:checked ~ .checkmark::after {
    display: block;
}

.checkbox-container .checkmark::after {
    left: 6px;
    top: 2px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.task-text {
    transition: var(--transition);
}

.checkbox-container input:checked ~ .task-text {
    color: var(--text-secondary);
    text-decoration: line-through;
}

/* 借貸記帳模擬器 */
.section-header-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1rem;
}

.template-selector {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1rem 1.5rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.template-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.template-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.btn-template {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--transition);
}

.btn-template:hover {
    background-color: var(--primary-glow);
    border-color: var(--primary);
    color: var(--primary);
}

/* 模擬器 Layout */
.simulator-layout {
    display: grid;
    grid-template-columns: 1.3fr 0.7fr;
    gap: 2rem;
}

@media (max-width: 1024px) {
    .simulator-layout {
        grid-template-columns: 1fr;
    }
}

.entry-form-container {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
}

.form-row-header-inputs, .form-row-header {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.form-row-header {
    font-size: 0.85rem;
    color: var(--text-secondary);
    padding-left: 0.5rem;
}

.form-row-header-inputs input {
    width: 100%;
    background-color: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    padding: 0.6rem;
    font-family: inherit;
    font-size: 0.9rem;
    outline: none;
    transition: var(--transition);
}

.form-row-header-inputs input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

/* 記帳表格列 */
.entry-rows-container {
    margin-top: 1.5rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.entry-table-header {
    display: grid;
    grid-template-columns: 2.2fr 1fr 1fr 0.3fr;
    gap: 1rem;
    background-color: var(--bg-primary);
    padding: 0.75rem 1rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border);
}

.entry-row {
    display: grid;
    grid-template-columns: 2.2fr 1fr 1fr 0.3fr;
    gap: 1rem;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
    align-items: center;
    transition: var(--transition);
}

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

.entry-row:hover {
    background-color: rgba(255,255,255,0.01);
}

.account-select {
    width: 100%;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    padding: 0.6rem;
    outline: none;
    font-family: inherit;
    font-size: 0.85rem;
    transition: var(--transition);
}

.account-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.amount-input {
    width: 100%;
    background-color: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    padding: 0.6rem;
    font-family: var(--font-code);
    font-size: 0.95rem;
    font-weight: 500;
    outline: none;
    text-align: right;
    transition: var(--transition);
}

.amount-input:focus {
    border-color: var(--primary);
}

.debit-input:focus {
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.credit-input:focus {
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.btn-delete-row {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    line-height: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: var(--transition);
    border-radius: 50%;
    width: 28px;
    height: 28px;
}

.btn-delete-row:hover {
    color: var(--danger);
    background-color: var(--danger-glow);
}

/* 模擬器控制按鈕 */
.form-actions {
    display: flex;
    justify-content: space-between;
    margin-top: 1.5rem;
    gap: 1rem;
}

/* 天平面板樣式 */
.balance-scale-container {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
}

.scale-visual-panel {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    gap: 1.5rem;
}

.scale-status {
    font-size: 1rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 999px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border);
    text-align: center;
    width: 100%;
    transition: var(--transition);
}

.scale-status.balanced {
    color: var(--success);
    border-color: var(--success);
    box-shadow: 0 0 15px var(--success-glow);
}

.scale-status.unbalanced {
    color: var(--danger);
    border-color: var(--danger);
    box-shadow: 0 0 15px var(--danger-glow);
}

.scale-svg-wrapper {
    width: 100%;
    max-width: 280px;
    margin: 1rem 0;
}

.scale-svg {
    width: 100%;
    height: auto;
}

/* 借貸總額顯示卡 */
.scale-totals {
    display: flex;
    gap: 1rem;
    width: 100%;
}

.total-box {
    flex: 1;
    background-color: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    transition: var(--transition);
}

.total-title {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.total-amount {
    font-family: var(--font-code);
    font-size: 1.25rem;
    font-weight: 700;
}

.debit-box.active {
    border-color: var(--primary);
    box-shadow: 0 0 10px var(--primary-glow);
}

.credit-box.active {
    border-color: var(--primary);
    box-shadow: 0 0 10px var(--primary-glow);
}

.scale-totals.balanced .total-box {
    border-color: var(--success);
}

.scale-totals.balanced .total-amount {
    color: var(--success);
}

/* 通用按鈕樣式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    outline: none;
}

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

.btn-primary:hover:not(:disabled) {
    background-color: #059669;
}

.btn-primary:disabled {
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    border-color: var(--border);
    cursor: not-allowed;
}

.btn-secondary {
    background-color: transparent;
    border-color: var(--border);
    color: var(--text-primary);
}

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

/* 報表區頁籤樣式 */
.reports-section {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
}

.tabs-container {
    display: flex;
    gap: 0.5rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 1.5rem;
    overflow-x: auto;
    padding-bottom: 0.25rem;
}

.tab-btn {
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-secondary);
    padding: 0.75rem 1.25rem;
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

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

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

/* 頁籤內容面版 */
.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
    animation: fadeIn 0.4s ease-out;
}

.tab-pane h3 {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
}

.tab-pane-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

/* 報表表格樣式 */
.table-responsive {
    overflow-x: auto;
}

.report-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    text-align: left;
}

.report-table th, .report-table td {
    padding: 0.8rem 1rem;
    border-bottom: 1px solid var(--border);
}

.report-table th {
    background-color: var(--bg-primary);
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.8rem;
    text-transform: uppercase;
}

.report-table tbody tr:hover {
    background-color: rgba(255,255,255,0.01);
}

.report-table td:nth-child(3), 
.report-table td:nth-child(4) {
    text-align: right;
    font-family: var(--font-code);
}

.empty-row-placeholder {
    color: var(--text-secondary);
    text-align: center;
    padding: 2.5rem !important;
    font-style: italic;
}

.total-row {
    font-weight: 700;
    background-color: rgba(255,255,255,0.02);
}

.total-row td {
    border-top: 1px solid var(--text-secondary);
    border-bottom: 2px double var(--text-secondary) !important;
}

/* 日記簿內縮字體 (分錄貸方科目內縮) */
.credit-account-cell {
    padding-left: 2rem !important;
}

.debit-account-cell {
    font-weight: 500;
}

/* 分類帳：T 字帳戶 Grid 卡片樣式 */
.ledger-grids {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}

.ledger-account-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.25rem;
}

.ledger-account-title {
    font-size: 1rem;
    font-weight: 700;
    text-align: center;
    border-bottom: 2px solid var(--primary);
    padding-bottom: 0.5rem;
    margin-bottom: 0.5rem;
}

.t-account-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8rem;
}

.t-account-table th {
    text-align: center;
    font-weight: 500;
    padding: 0.25rem;
    background-color: transparent;
    border-bottom: 1px solid var(--border);
}

.t-account-table td {
    width: 50%;
    vertical-align: top;
    padding: 0.5rem;
}

.t-account-table td:first-child {
    border-right: 1px solid var(--border);
}

.t-item {
    display: flex;
    justify-content: space-between;
    font-family: var(--font-code);
    margin-bottom: 0.25rem;
    gap: 0.5rem;
}

.t-item-desc {
    color: var(--text-secondary);
    font-family: var(--font-main);
}

.t-balance-row {
    border-top: 1px solid var(--border);
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    display: flex;
    justify-content: space-between;
    font-weight: 700;
}

.t-balance-row.debit-balance {
    color: var(--primary);
}

.t-balance-row.credit-balance {
    color: var(--warning);
}

/* 財務報表卡片樣式 */
.statement-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 2rem;
    max-width: 700px;
    margin: 0 auto;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.statement-header {
    text-align: center;
    border-bottom: 1px solid var(--border);
    padding-bottom: 1rem;
    margin-bottom: 1.5rem;
}

.statement-header h4 {
    font-size: 1.2rem;
    font-weight: 500;
}

.statement-header h5 {
    font-size: 1.4rem;
    margin: 0.25rem 0;
    color: var(--text-primary);
}

.statement-period {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.statement-row-group {
    margin-bottom: 1.5rem;
}

.statement-category-title {
    font-weight: 700;
    font-size: 0.95rem;
    border-bottom: 1px solid var(--border);
    padding-bottom: 0.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.statement-item-row {
    display: flex;
    justify-content: space-between;
    padding: 0.4rem 0.5rem;
    font-size: 0.9rem;
}

.statement-item-val {
    font-family: var(--font-code);
}

.statement-summary-row {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0.5rem;
    font-size: 0.9rem;
    font-weight: 700;
    border-top: 1px solid var(--border);
}

.statement-net-income-row {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0.5rem;
    font-size: 1.05rem;
    font-weight: 700;
    border-top: 1px solid var(--text-primary);
    border-bottom: 2px double var(--text-primary);
    margin-top: 1rem;
}

.statement-net-income-row.profit {
    color: var(--success);
}

.statement-net-income-row.loss {
    color: var(--danger);
}

/* 資產負債表左右排版 */
.statement-body-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
}

@media (max-width: 650px) {
    .statement-body-split {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

.statement-column {
    display: flex;
    flex-direction: column;
}

.statement-column-title {
    font-size: 1.05rem;
    font-weight: 700;
    border-bottom: 2px solid var(--primary);
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.statement-subsection-title {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 700;
    margin-top: 0.5rem;
    margin-bottom: 0.25rem;
    text-transform: uppercase;
}

.statement-list {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.statement-column-total {
    display: flex;
    justify-content: space-between;
    font-weight: 700;
    font-size: 0.95rem;
    padding: 0.75rem 0.5rem;
    border-top: 1px solid var(--text-primary);
    border-bottom: 2px double var(--text-primary);
    margin-top: 1.5rem;
    font-family: var(--font-code);
}

.statement-column-total span:first-child {
    font-family: var(--font-main);
}

.bs-balance-badge {
    margin-top: 2rem;
    text-align: center;
    padding: 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 700;
    background-color: var(--bg-secondary);
    border: 1px solid var(--success);
    color: var(--success);
}

.bs-balance-badge.unbalanced {
    border-color: var(--danger);
    color: var(--danger);
}

/* 頁尾樣式 (Footer) */
.app-footer {
    border-top: 1px solid var(--border);
    margin-top: 4rem;
    padding: 2rem;
    text-align: center;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

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

/* 核心 Keyframe 動畫效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}