/* =====================================================
   現代化會計系統 - 樣式表
   ===================================================== */

/* 登入表單樣式 */
.login-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.login-container {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    width: 100%;
    max-width: 400px;
    margin: 20px;
}

.login-form {
    padding: 2rem;
}

.login-form h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: #333;
    font-weight: 600;
}

.login-form h2 i {
    margin-right: 0.5rem;
    color: #667eea;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: #555;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.3s ease;
    box-sizing: border-box;
}

.form-group input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.login-btn {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 1rem;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

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

.error-message {
    background: #fef2f2;
    color: #dc2626;
    padding: 0.75rem;
    border-radius: 6px;
    font-size: 14px;
    border: 1px solid #fecaca;
    margin-top: 1rem;
}

/* 登出按鈕樣式 - 白色圓形圖標 */
.logout-btn {
    background: white;
    color: #dc3545;
    border: 1px solid #e1e5e9;
    padding: 8px;
    border-radius: 50%;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.logout-btn:hover {
    background: #f8f9fa;
    color: #c82333;
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

/* Header 佈局調整 - 一行顯示 */
.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: nowrap;
    gap: 1rem;
}

.header-left {
    flex-shrink: 0;
}

.header-left h1 {
    margin: 0;
    font-size: 1.1rem;
}

.header-right {
    flex-shrink: 0;
}

.header-stats {
    display: flex;
    gap: 0.75rem;
    flex: 1;
    justify-content: center;
    margin: 0;
}

/* CSS Variables for Design System - Confluence-inspired Light Theme */
:root {
    /* Colors - Confluence Light Theme */
    --primary-color: #0052CC;
    --primary-dark: #003D99;
    --secondary-color: #6554C0;
    --success-color: #00875A;
    --danger-color: #DE350B;
    --warning-color: #FF8B00;
    --info-color: #0065FF;
    
    /* Confluence Light Neutrals */
    --white: #ffffff;
    --gray-50: #FAFBFC;     /* Lightest background */
    --gray-100: #F4F5F7;    /* Very light background */
    --gray-200: #EBECF0;    /* Card borders */
    --gray-300: #DFE1E6;    /* Input borders */
    --gray-400: #B3BAC5;    /* Subtle elements */
    --gray-500: #8993A4;    /* Disabled text */
    --gray-600: #6B778C;    /* Secondary text */
    --gray-700: #42526E;    /* Primary text */
    --gray-800: #253858;    /* High contrast text */
    --gray-900: #172B4D;    /* Darkest text */
    
    /* Confluence-inspired backgrounds */
    --bg-primary: #FAFBFC;      /* Main background */
    --bg-secondary: #FFFFFF;    /* Card background */
    --bg-tertiary: #FAFBFC;     /* Input background */
    --bg-accent: #F4F5F7;       /* Hover states */
    --bg-elevated: #FFFFFF;     /* Modal/dropdown bg */
    
    /* Text colors optimized for readability */
    --text-primary: #172B4D;    /* High contrast text */
    --text-secondary: #42526E;  /* Standard text */
    --text-tertiary: #6B778C;   /* Muted text */
    --text-disabled: #8993A4;   /* Disabled text */
    
    /* Confluence-style gradients */
    --gradient-primary: linear-gradient(135deg, #0052CC 0%, #0065FF 100%);
    --gradient-success: linear-gradient(135deg, #00875A 0%, #36B37E 100%);
    --gradient-danger: linear-gradient(135deg, #DE350B 0%, #FF5630 100%);
    --gradient-card: #FFFFFF;
    --gradient-bg: linear-gradient(180deg, #FAFBFC 0%, #F4F5F7 100%);
    
    /* Confluence-style shadows */
    --shadow-sm: 0 1px 2px 0 rgba(9, 30, 66, 0.08);
    --shadow-md: 0 4px 8px 0 rgba(9, 30, 66, 0.15);
    --shadow-lg: 0 8px 16px 0 rgba(9, 30, 66, 0.15);
    --shadow-xl: 0 16px 32px 0 rgba(9, 30, 66, 0.15);
    
    /* Confluence-inspired spacing */
    --spacing-xs: 0.25rem;   /* 4px */
    --spacing-sm: 0.5rem;    /* 8px */
    --spacing-md: 0.75rem;   /* 12px */
    --spacing-lg: 1rem;      /* 16px */
    --spacing-xl: 1.5rem;    /* 24px */
    --spacing-2xl: 2rem;     /* 32px */
    
    /* Border radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.3s ease;
}

/* Reset and base styles */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif;
    line-height: 1.6;
    background: var(--gradient-bg);
    color: var(--text-secondary);
    min-height: 100vh;
    font-size: 14px;
}

/* App Header - Confluence style */
.app-header {
    background: var(--bg-secondary);
    color: var(--text-primary);
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid var(--gray-200);
    margin-bottom: var(--spacing-xl);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

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

.header-content h1 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.header-content h1 i {
    margin-right: var(--spacing-sm);
    color: var(--primary-color);
}

.header-stats {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.stat-card {
    background: var(--bg-secondary);
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-md);
    text-align: center;
    min-width: 90px;
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
    flex-shrink: 1;
}

.stat-value {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
    line-height: 1.2;
}

.stat-label {
    font-size: 0.7rem;
    color: var(--text-tertiary);
    line-height: 1.1;
}

/* Container and Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

main.container {
    padding-bottom: var(--spacing-xl);
}

/* Tab System - Confluence style */
.tab-container {
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    border: 1px solid var(--gray-200);
}

.tab-navigation {
    display: flex;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--gray-200);
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.tab-navigation::-webkit-scrollbar {
    display: none; /* Chrome, Safari, Opera */
}

.tab-button {
    flex: 1;
    min-width: 110px;
    padding: var(--spacing-md) var(--spacing-sm);
    background: transparent;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.8rem;
    font-weight: 500;
    position: relative;
    border-bottom: 2px solid transparent;
}

.tab-button i {
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
}

.tab-button span {
    white-space: nowrap;
    text-align: center;
}

.tab-button:hover {
    background: var(--bg-accent);
    color: var(--text-secondary);
}

.tab-button.active {
    background: var(--bg-accent);
    color: var(--text-primary);
    border-bottom-color: var(--primary-color);
}

.tab-content {
    padding: var(--spacing-lg);
    min-height: 500px;
}

.tab-panel {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-panel.active {
    display: block;
}

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

/* Card System - Confluence style */
.card {
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-lg);
    overflow: hidden;
    border: 1px solid var(--gray-200);
    transition: box-shadow 0.2s ease;
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-accent);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

/* Chart Controls */
.chart-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.chart-controls label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin: 0;
}

.chart-controls label i {
    color: var(--primary-color);
    font-size: 0.875rem;
}

.chart-controls select {
    min-width: 120px;
    padding: 12px 16px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s ease;
    height: auto;
    box-sizing: border-box;
}

.chart-controls select:hover {
    border-color: var(--primary-color);
}

.chart-controls select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0, 82, 204, 0.25);
}

.card-header h2 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.card-header i {
    margin-right: var(--spacing-sm);
    color: var(--primary-color);
}

.card-body {
    padding: var(--spacing-lg);
}

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

/* Chart Container */
.chart-container {
    position: relative;
    height: 400px;
    margin: var(--spacing-lg) 0;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
}

/* Expense Chart specific styling */
#expenseChart {
    min-height: 400px;
}

.chart-container canvas {
    max-height: 400px;
    border-radius: var(--radius-sm);
}

.chart-container .loading,
.chart-container .error {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    font-size: 1rem;
    font-weight: 500;
}

.chart-container .loading {
    color: var(--text-tertiary);
}

.chart-container .error {
    color: var(--danger-color);
    background: rgba(222, 53, 11, 0.1);
    border-radius: var(--radius-md);
    border: 1px solid rgba(222, 53, 11, 0.2);
}

/* Monthly totals section */
.monthly-totals-section {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--gray-200);
}

.monthly-totals-section h3 {
    color: var(--text-primary);
    margin-bottom: 15px;
    font-size: 1.1rem;
    font-weight: 600;
    text-align: center;
}

.monthly-totals-table {
    overflow-x: auto;
}

#monthlyTotalsTable {
    width: 100%;
    border-collapse: collapse;
    margin: 0;
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

#monthlyTotalsTable th {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-weight: 600;
    padding: 12px 16px;
    text-align: center;
    border-bottom: 1px solid var(--gray-200);
    font-size: 0.9rem;
}

#monthlyTotalsTable td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--gray-100);
    color: var(--text-primary);
    text-align: center;
}

#monthlyTotalsTable tr:last-child td {
    border-bottom: none;
}

#monthlyTotalsTable .amount {
    text-align: center;
    font-weight: 500;
}

#monthlyTotalsTable .amount.income {
    color: var(--success-color);
}

#monthlyTotalsTable .amount.expense {
    color: var(--danger-color);
}

#monthlyTotalsTable .percentage {
    text-align: center;
    color: var(--text-tertiary);
}

#monthlyTotalsTable .total-row {
    background: var(--bg-secondary);
    font-weight: 600;
}

#monthlyTotalsTable .total-row .amount.income {
    color: var(--success-color);
}

#monthlyTotalsTable .total-row .amount.expense {
    color: var(--danger-color);
}

/* Form Styles */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

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

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 0.875rem;
}

.form-group label i {
    margin-right: var(--spacing-sm);
    color: var(--primary-color);
}

input, select, textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    height: auto;
    box-sizing: border-box;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0, 82, 204, 0.25);
    background: var(--bg-secondary);
}

/* 確保日期輸入框樣式一致 */
input[type="date"], input[type="time"], input[type="datetime-local"] {
    padding: 12px 16px;
    height: auto;
    line-height: normal;
}

textarea {
    resize: vertical;
    min-height: 60px;
}

/* Button System - Confluence style */
.btn-submit {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.875rem;
    box-shadow: var(--shadow-sm);
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.btn-submit:hover {
    background: var(--primary-dark);
    box-shadow: var(--shadow-md);
}

.btn-add, .btn-add-item {
    background: var(--success-color);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.btn-add:hover, .btn-add-item:hover {
    background: #00875A;
    box-shadow: var(--shadow-sm);
}

.btn-add i, .btn-add-item i {
    color: white;
}

.btn-save {
    background: var(--gradient-primary);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-cancel {
    background: var(--gray-300);
    color: var(--gray-700);
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

/* Transaction Items Section */
.transaction-items-section {
    background: var(--gray-50);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-xl);
}

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

.section-header h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-700);
    margin: 0;
}

.items-container {
    margin-bottom: var(--spacing-lg);
}

.transaction-item {
    margin-bottom: var(--spacing-md);
}

.item-input-group {
    display: grid;
    grid-template-columns: 2fr 1fr auto;
    gap: var(--spacing-md);
    align-items: center;
    padding: var(--spacing-md);
    background: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
}

.amount-input-wrapper {
    position: relative;
}

.currency-symbol {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-500);
    font-weight: 500;
    pointer-events: none;
}

.amount-input-wrapper input {
    padding-left: 2rem;
}

.remove-item-btn {
    background: var(--danger-color);
    color: white;
    border: none;
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.remove-item-btn:hover {
    background: #e53e3e;
    transform: scale(1.1);
}

/* Total Display */
.total-display {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    background: white;
    border-radius: var(--radius-lg);
    border: 2px solid var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.total-label {
    font-weight: 600;
    color: var(--gray-700);
    font-size: 1.125rem;
}

.total-amount {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

/* Search Box */
.search-box {
    position: relative;
    max-width: 250px;
}

.search-box i {
    position: absolute;
    left: var(--spacing-sm);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
}

.search-box input {
    padding-left: 2rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-200);
}

/* Transactions List */
.transactions-list {
    display: grid;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

/* Pagination */
.pagination-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--gray-200);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.pagination-info {
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

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

.pagination-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--gray-300);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.875rem;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.pagination-btn:hover:not(:disabled) {
    background: var(--bg-accent);
    border-color: var(--primary-color);
}

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

.page-numbers {
    display: flex;
    gap: var(--spacing-xs);
}

.page-number {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--gray-300);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.875rem;
    transition: all 0.2s ease;
    min-width: 32px;
    text-align: center;
}

.page-number:hover {
    background: var(--bg-accent);
    border-color: var(--primary-color);
}

.page-number.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.page-number.ellipsis {
    cursor: default;
    border: none;
    background: transparent;
}

.page-number.ellipsis:hover {
    background: transparent;
    border: none;
}

.transaction {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: var(--spacing-md);
    background: white;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.transaction:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.transaction-expand-btn {
    background: none;
    border: none;
    color: var(--primary-color);
    cursor: pointer;
    font-size: 0.875rem;
    text-decoration: underline;
    padding: var(--spacing-xs) 0;
    margin-left: var(--spacing-sm);
    transition: color var(--transition-fast);
}

.transaction-expand-btn:hover {
    color: var(--primary-dark);
}

.transaction-delete-btn {
    background: none;
    border: none;
    color: var(--danger-color);
    cursor: pointer;
    font-size: 0.875rem;
    padding: var(--spacing-xs);
    margin-left: var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    opacity: 0.7;
}

.transaction-delete-btn:hover {
    opacity: 1;
    background-color: rgba(222, 53, 11, 0.1);
    transform: scale(1.05);
}

.transaction-detail {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--gray-50);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--primary-color);
}

.transaction-detail-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-xs);
    font-size: 0.875rem;
}

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

.transaction-items {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--gray-50);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--primary-color);
}

.transaction-item-display {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xs);
    font-size: 0.875rem;
}

.transaction-item-display:last-child {
    margin-bottom: 0;
}

.transaction-item-display .item-description {
    color: var(--text-color);
    font-weight: 500;
}

.transaction-item-display .item-amount {
    color: var(--primary-color);
    font-weight: 600;
}

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

.transaction-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-size: 0.875rem;
}

.transaction-date {
    color: var(--text-muted);
    font-weight: 500;
    white-space: nowrap;
}

.transaction-account {
    color: var(--text-color);
    font-weight: 600;
}

.tag-badge {
    color: white !important;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
    white-space: nowrap;
}

.transaction-items-compact {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.transaction-item-compact {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
    line-height: 1.3;
}

.item-desc {
    color: var(--text-color);
    font-weight: 500;
    flex: 1;
    min-width: 0;
    margin-right: var(--spacing-sm);
}

.item-amt {
    color: var(--text-muted);
    font-weight: 600;
    white-space: nowrap;
}

.transaction-total {
    font-size: 1.125rem;
    font-weight: 700;
    white-space: nowrap;
    margin-left: var(--spacing-md);
    align-self: center;
}

.transaction-delete-btn {
    margin-left: auto;
    opacity: 0.6;
    transition: all 0.2s ease;
    padding: 4px;
    border-radius: var(--radius-sm);
}

.income {
    color: var(--success-color);
    font-weight: 600;
}

.expense {
    color: var(--danger-color);
    font-weight: 600;
}

/* Summary Grid */
.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-lg);
}

.summary-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-lg);
    background: white;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
    text-align: center;
}

.summary-item span:first-child {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin-bottom: var(--spacing-sm);
}

.summary-item span:last-child {
    font-size: 1.5rem;
    font-weight: 700;
}

/* Payment Methods Grid */
.payment-methods-grid {
    display: grid;
    gap: var(--spacing-md);
}

/* Accounts Grid */
.accounts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

/* Account Balance Grid for Statistics */
.accounts-balance-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.account-balance-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

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

.account-balance-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-color);
}

.account-balance-header {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.account-balance-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: var(--spacing-md);
    color: white;
    font-size: 1.2rem;
}

.account-balance-info h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 var(--spacing-xs) 0;
}

.account-balance-info .account-type {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.account-balance-amount {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--gray-200);
}

.account-balance-value {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.account-balance-value.positive {
    color: var(--success-color);
}

.account-balance-value.negative {
    color: var(--danger-color);
}

.account-balance-value.zero {
    color: var(--text-secondary);
}

.account-balance-label {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.account-item {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1px solid var(--gray-200);
}

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

.account-info {
    flex: 1;
}

.account-name {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.account-type-badge {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    margin-left: var(--spacing-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.account-type-badge.現金 {
    background: rgba(16, 185, 129, 0.1);
    color: #10B981;
}

.account-type-badge.投資 {
    background: rgba(245, 158, 11, 0.1);
    color: #F59E0B;
}

.account-type-badge.信用 {
    background: rgba(239, 68, 68, 0.1);
    color: #EF4444;
}


.account-balance-display {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: var(--spacing-xs);
}

.balance-amount {
    font-weight: 700;
    font-size: 1rem;
}

.balance-amount.positive {
    color: var(--success-color);
}

.balance-amount.negative {
    color: var(--danger-color);
}

.balance-label {
    font-size: 0.75rem;
    color: var(--gray-500);
    text-transform: uppercase;
    margin-top: var(--spacing-xs);
}

.account-actions {
    display: flex;
    gap: var(--spacing-xs);
}

.payment-method-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    background: white;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
    gap: var(--spacing-lg);
}

.payment-method-item:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.payment-method-info {
    flex: 1;
}

.payment-method-name {
    font-weight: 600;
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
    color: var(--gray-800);
}

.payment-method-details {
    color: var(--gray-600);
    font-size: 0.875rem;
}

.payment-method-amount {
    flex: 0 0 auto;
    text-align: right;
}

.amount-value {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.amount-value.positive {
    color: var(--success-color);
}

.amount-value.negative {
    color: var(--danger-color);
}

.amount-label {
    font-size: 0.75rem;
    color: var(--gray-500);
    text-transform: uppercase;
}

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

.btn-small {
    padding: 0.25rem 0.5rem;
    font-size: 0.7rem;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    font-weight: 500;
    transition: all var(--transition-fast);
}

/* Modal System */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(9, 30, 66, 0.54);
    backdrop-filter: blur(6px);
}

.modal-container {
    position: relative;
    background: var(--bg-elevated);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 450px;
    max-height: 85vh;
    overflow: hidden;
    animation: modalSlideIn 0.3s ease;
    border: 1px solid var(--gray-200);
}

@keyframes modalSlideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

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

.modal-header h3 {
    margin: 0;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    padding: var(--spacing-xs);
    cursor: pointer;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--bg-accent);
    color: var(--text-primary);
}

.modal-body {
    padding: var(--spacing-lg);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    border-top: 1px solid var(--gray-200);
    background: var(--bg-accent);
}

/* Loading and Error States */
.loading {
    text-align: center;
    padding: var(--spacing-lg);
    color: var(--text-secondary);
    font-style: italic;
}

.error {
    color: var(--danger-color);
    text-align: center;
    padding: var(--spacing-xl);
    background: rgba(245, 101, 101, 0.1);
    border-radius: var(--radius-md);
    border: 1px solid rgba(245, 101, 101, 0.2);
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-content {
        gap: 0.5rem;
    }
    
    .header-left h1 {
        font-size: 1rem;
    }
    
    .header-stats {
        gap: 0.5rem;
    }
    
    .stat-card {
        padding: var(--spacing-sm);
    }
    
    .logout-btn {
        width: 32px;
        height: 32px;
        font-size: 12px;
    }
    
    /* Tab responsive */
    .tab-button {
        min-width: 120px;
        padding: var(--spacing-md) var(--spacing-sm);
        font-size: 0.75rem;
    }
    
    .tab-button i {
        font-size: 1rem;
        margin-bottom: var(--spacing-xs);
    }
    
    .tab-content {
        padding: var(--spacing-lg);
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    
    .item-input-group {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .transaction {
        flex-direction: column;
        gap: var(--spacing-sm);
        padding: var(--spacing-sm);
    }
    
    .transaction-meta {
        flex-wrap: wrap;
        gap: var(--spacing-xs);
        font-size: 0.8rem;
    }
    
    .transaction-total {
        font-size: 1rem;
        margin-left: 0;
        align-self: center;
        margin-top: var(--spacing-xs);
    }
    
    .payment-method-item {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .payment-method-amount {
        text-align: center;
    }
    
    .accounts-grid {
        grid-template-columns: 1fr;
    }
    
    .account-item {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .account-actions {
        margin-left: 0;
    }
    
    .modal-container {
        margin: var(--spacing-md);
        max-height: calc(100vh - 2rem);
    }
    
    .card-header {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
    }
    
    .summary-grid {
        grid-template-columns: 1fr;
    }
    
    .chart-container {
        height: 350px;
        padding: var(--spacing-md);
        margin: var(--spacing-md) 0;
    }
    
    #expenseChart {
        min-height: 350px;
    }
    
    .accounts-balance-grid {
        grid-template-columns: 1fr;
    }
    
    .chart-controls {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }
    
    .chart-controls select {
        min-width: 100px;
        width: 100%;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    /* Tab mobile optimization */
    .tab-button {
        min-width: 80px;
        padding: var(--spacing-sm);
        font-size: 0.7rem;
    }
    
    .tab-button span {
        display: none; /* Hide text on very small screens, show only icons */
    }
    
    .tab-button i {
        font-size: 1.2rem;
        margin-bottom: 0;
    }
    
    .tab-content {
        padding: var(--spacing-md);
        min-height: 500px;
    }
    
    .card-body {
        padding: var(--spacing-lg);
    }
    
    .transaction-items-section {
        padding: var(--spacing-lg);
    }
    
    .stat-card {
        min-width: 100px;
    }
    
    .header-stats {
        gap: 0.25rem;
        flex: 1;
    }
    
    .stat-card {
        min-width: 60px;
        padding: 0.25rem 0.5rem;
    }
    
    .stat-value {
        font-size: 0.875rem;
    }
    
    .stat-label {
        font-size: 0.625rem;
    }
    
    .chart-container {
        height: 300px;
        padding: var(--spacing-sm);
        margin: var(--spacing-sm) 0;
    }
    
    #expenseChart {
        min-height: 300px;
    }
    
    /* Hide chart legend on very small screens to save space */
    .chart-container canvas {
        font-size: 10px;
    }
    
    .accounts-balance-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .account-balance-card {
        padding: var(--spacing-md);
    }
    
    .account-balance-icon {
        width: 35px;
        height: 35px;
        font-size: 1rem;
    }
    
    .chart-controls {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-xs);
        width: 100%;
    }
    
    .chart-controls label {
        font-size: 0.75rem;
    }
    
    .chart-controls select {
        font-size: 0.75rem;
        padding: var(--spacing-xs);
    }
}

/* =====================================================
   標籤管理樣式
   ===================================================== */

.tags-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.tag-item {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1px solid var(--gray-200);
}

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

.tag-info {
    flex: 1;
}

.tag-name {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.tag-type-badge {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-weight: 500;
    margin-left: var(--spacing-sm);
}

.tag-type-badge.income {
    background-color: #e6fffa;
    color: #047857;
    border: 1px solid #34d399;
}

.tag-type-badge.expense {
    background-color: #fef2f2;
    color: #dc2626;
    border: 1px solid #fca5a5;
}


.tag-description {
    color: var(--gray-600);
    font-size: 0.875rem;
    line-height: 1.5;
}

.tag-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-left: var(--spacing-lg);
}

.tag-badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 10px;
    font-weight: 500;
    color: white;
    margin-left: 8px;
}

/* Color input styling */
input[type="color"] {
    width: 100%;
    height: 40px;
    padding: 4px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    background: var(--white);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

input[type="color"]:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* 響應式設計 */
@media (max-width: 768px) {
    .tags-grid {
        grid-template-columns: 1fr;
    }
    
    .tag-item {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .tag-actions {
        margin-left: 0;
    }
}