/* ==========================================
   全域變數與主題系統 (支援深淺色切換)
   ========================================== */
:root {
    /* 淺色主題變數 */
    --bg-gradient-start: #f3f4f6;
    --bg-gradient-end: #e5e7eb;
    --card-bg: rgba(255, 255, 255, 0.75);
    --card-border: rgba(255, 255, 255, 0.4);
    --card-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.08);
    --text-primary: #1f2937;
    --text-secondary: #4b5563;
    --text-muted: #9ca3af;
    
    --primary-color: #6366f1; /* 現代靛藍色 */
    --primary-hover: #4f46e5;
    
    /* 台灣股市美學：紅漲綠跌 */
    --income-color: #10b981;  /* 一般收入：翠綠色 */
    --income-bg: rgba(16, 185, 129, 0.1);
    --expense-color: #ef4444; /* 一般支出：玫瑰紅 */
    --expense-bg: rgba(239, 68, 68, 0.1);
    
    --stock-gain: #ef4444;    /* 股票上漲：紅色 */
    --stock-gain-bg: rgba(239, 68, 68, 0.08);
    --stock-loss: #10b981;    /* 股票下跌：綠色 */
    --stock-loss-bg: rgba(16, 185, 129, 0.08);
    
    --input-bg: rgba(255, 255, 255, 0.9);
    --input-border: #d1d5db;
    --input-focus: #6366f1;
    
    --glass-blur: 12px;
    --transition-speed: 0.3s;
}

[data-theme="dark"] {
    /* 深色主題變數 */
    --bg-gradient-start: #0f172a; /* 深邃藍 */
    --bg-gradient-end: #1e1b4b;   /* 深靛紫 */
    --card-bg: rgba(30, 41, 59, 0.7);
    --card-border: rgba(255, 255, 255, 0.08);
    --card-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    
    --primary-color: #818cf8;
    --primary-hover: #6366f1;
    
    /* 台灣股市美學：紅漲綠跌 (深色優化) */
    --income-color: #34d399;
    --income-bg: rgba(52, 211, 153, 0.15);
    --expense-color: #f87171;
    --expense-bg: rgba(248, 113, 113, 0.15);
    
    --stock-gain: #f87171;
    --stock-gain-bg: rgba(248, 113, 113, 0.15);
    --stock-loss: #34d399;
    --stock-loss-bg: rgba(52, 211, 153, 0.15);
    
    --input-bg: rgba(15, 23, 42, 0.6);
    --input-border: rgba(255, 255, 255, 0.15);
    --input-focus: #818cf8;
}

/* ==========================================
   基礎樣式重設 (Reset)
   ========================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Outfit', 'Noto Sans TC', sans-serif;
    background: linear-gradient(135deg, var(--bg-gradient-start), var(--bg-gradient-end));
    background-attachment: fixed;
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 20px;
    transition: background var(--transition-speed) ease, color var(--transition-speed) ease;
    line-height: 1.5;
}

/* 應用程式主容器 */
.app-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* ==========================================
   頂部欄 (Header) 樣式
   ========================================== */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 5px;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    font-size: 2rem;
    animation: float 3s ease-in-out infinite;
}

.app-header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    background: linear-gradient(to right, var(--primary-color), var(--income-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 0.5px;
}

/* 主題切換按鈕 */
.theme-toggle {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    box-shadow: var(--card-shadow);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    width: 44px;
    height: 44px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
}

.theme-toggle:hover {
    transform: scale(1.1) rotate(15deg);
    border-color: var(--primary-color);
}

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

/* ==========================================
   儀表板卡片 (Dashboard) 樣式
   ========================================== */
.dashboard-section {
    display: grid;
    grid-template-columns: 1fr 2.5fr;
    gap: 20px;
}

/* 總資產大卡片 */
.balance-card {
    background: linear-gradient(135deg, var(--primary-color), #4f46e5);
    color: #ffffff;
    border-radius: 20px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 25px -5px rgba(99, 102, 241, 0.4);
    min-height: 140px;
}

.balance-card .card-label {
    font-size: 0.9rem;
    opacity: 0.85;
    font-weight: 500;
    letter-spacing: 1px;
}

.balance-card .card-value {
    font-size: 2.25rem;
    font-weight: 700;
    margin-top: 8px;
    word-break: break-all;
}

/* 卡片背景裝飾漸層球 */
.card-decoration {
    position: absolute;
    width: 120px;
    height: 120px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    top: -30px;
    right: -30px;
    pointer-events: none;
}

/* 三欄與滿寬度子卡片網格 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.stat-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    box-shadow: var(--card-shadow);
    border-radius: 20px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    transition: transform var(--transition-speed) ease, border-color var(--transition-speed) ease;
}

.stat-card:hover {
    transform: translateY(-3px);
}

.stat-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

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

.stat-card .card-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.stat-card .card-value {
    font-size: 1.5rem;
    font-weight: 700;
    word-break: break-all;
}

.cash-value {
    color: var(--text-primary);
}

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

/* 未實現損益特別色 */
.pl-value.gain {
    color: var(--stock-gain);
}

.pl-value.loss {
    color: var(--stock-loss);
}

.pl-value.zero {
    color: var(--text-primary);
}

/* ==========================================
   新增：帳戶餘額分佈橫向清單樣式
   ========================================== */
.account-balances-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
    width: 100%;
}

.account-balance-item {
    background: var(--bg-gradient-start);
    border: 1px solid var(--card-border);
    padding: 10px 14px;
    border-radius: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all var(--transition-speed) ease;
}

.account-balance-item:hover {
    transform: translateY(-2px);
    border-color: var(--primary-color);
}

.account-balance-item .acc-name {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.account-balance-item .acc-val {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* ==========================================
   主要內容區域 (兩欄式版面)
   ========================================== */
.main-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 24px;
    align-items: start;
}

/* 毛玻璃卡片基底 */
.form-card, .history-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    box-shadow: var(--card-shadow);
    border-radius: 24px;
    padding: 28px;
    transition: background var(--transition-speed) ease, border-color var(--transition-speed) ease;
}

/* ==========================================
   Tab 頁籤樣式
   ========================================== */
.tab-header {
    display: flex;
    border-bottom: 2px solid var(--input-border);
    margin-bottom: 22px;
    gap: 12px;
    flex-wrap: wrap;
}

.tab-btn {
    background: transparent;
    border: none;
    outline: none;
    padding: 8px 8px 14px 8px;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    position: relative;
    transition: all var(--transition-speed) ease;
}

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

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

/* 底部滑動線條 */
.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--primary-color);
    border-radius: 3px;
}

/* 標籤內容顯示與隱藏 */
.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.35s ease;
}

/* ==========================================
   記帳表單元件樣式
   ========================================== */
#transaction-form, #stock-form, #add-account-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
}

/* 輸入框與選擇器 */
input[type="number"],
input[type="date"],
input[type="text"],
select {
    width: 100%;
    padding: 12px 16px;
    border-radius: 12px;
    border: 1px solid var(--input-border);
    background: var(--input-bg);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    outline: none;
    transition: all var(--transition-speed) ease;
}

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

input:focus, select:focus {
    border-color: var(--input-focus);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

/* 金額輸入框特別設計 */
.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-prefix {
    position: absolute;
    left: 16px;
    color: var(--text-secondary);
    font-weight: 600;
}

.input-wrapper input {
    padding-left: 32px;
}

/* 收支類型單選按鈕組 (客製化按鈕切換效果) */
.type-selector {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    background: var(--bg-gradient-start);
    padding: 4px;
    border-radius: 14px;
    border: 1px solid var(--card-border);
}

.type-selector input[type="radio"] {
    display: none; /* 隱藏原生單選框 */
}

.type-btn {
    display: block;
    text-align: center;
    padding: 10px;
    border-radius: 10px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
}

/* 選中支出的效果 */
#type-expense:checked ~ .label-expense,
#stock-type-sell:checked ~ .label-expense {
    background: var(--expense-color);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.25);
}

/* 選中收入的效果 */
#type-income:checked ~ .label-income,
#stock-type-buy:checked ~ .label-income {
    background: var(--income-color);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.25);
}

/* 儲存按鈕 */
.submit-btn {
    background: var(--primary-color);
    color: #ffffff;
    border: none;
    padding: 14px;
    border-radius: 14px;
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.2);
    transition: all var(--transition-speed) ease;
    margin-top: 8px;
}

.submit-btn:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(99, 102, 241, 0.3);
}

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

/* ==========================================
   歷史紀錄區與篩選器樣式
   ========================================== */
.history-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 20px;
}

.history-header h2 {
    font-size: 1.15rem;
    color: var(--text-primary);
}

.stock-sum-info {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.stock-sum-info strong {
    color: var(--primary-color);
    font-size: 1.05rem;
}

.filter-controls {
    display: flex;
    gap: 8px;
}

.filter-select {
    padding: 6px 12px;
    font-size: 0.85rem;
    border-radius: 8px;
    width: auto;
}

/* 紀錄列表容器與滾動條 */
.list-container {
    max-height: 520px;
    overflow-y: auto;
    padding-right: 4px;
}

/* 調整 Webkit 瀏覽器滾動條樣式，使其更精緻 */
.list-container::-webkit-scrollbar {
    width: 6px;
}

.list-container::-webkit-scrollbar-track {
    background: transparent;
}

.list-container::-webkit-scrollbar-thumb {
    background: var(--text-muted);
    border-radius: 10px;
    opacity: 0.3;
}

.transaction-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* 歷史收支項目卡片 */
.transaction-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-gradient-start);
    border: 1px solid var(--card-border);
    padding: 14px 18px;
    border-radius: 16px;
    transition: all var(--transition-speed) ease;
    animation: slideIn 0.35s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.transaction-item:hover {
    transform: scale(1.015) translateX(2px);
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
}

/* 收支項目左側詳細資訊 */
.item-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.category-badge {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    background: var(--card-bg);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.details-wrapper {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.item-description {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
}

.item-meta {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* 收支項目右側數值與刪除 */
.item-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.item-amount {
    font-size: 1.1rem;
    font-weight: 700;
}

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

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

/* 刪除與操作按鈕 */
.delete-btn, .edit-btn {
    background: transparent;
    border: none;
    font-size: 1.1rem;
    cursor: pointer;
    padding: 6px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    transition: all var(--transition-speed) ease;
}

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

.edit-btn:hover {
    color: var(--primary-color);
    background: rgba(99, 102, 241, 0.1);
}

/* 無資料提示框 */
.no-data-alert {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    text-align: center;
    color: var(--text-secondary);
    gap: 12px;
}

.no-data-icon {
    font-size: 2.5rem;
    opacity: 0.6;
}

.no-data-alert p {
    font-size: 0.9rem;
    font-weight: 500;
}

/* ==========================================
   股票持股表格樣式 (Table)
   ========================================== */
.table-responsive {
    width: 100%;
    overflow-x: auto;
    border-radius: 14px;
    border: 1px solid var(--card-border);
}

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

.stock-table th {
    background: var(--bg-gradient-start);
    color: var(--text-secondary);
    font-weight: 600;
    padding: 14px 16px;
    border-bottom: 2px solid var(--card-border);
    white-space: nowrap;
}

.stock-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--card-border);
    color: var(--text-primary);
    white-space: nowrap;
    vertical-align: middle;
}

.stock-table tbody tr {
    transition: background var(--transition-speed) ease;
}

.stock-table tbody tr:hover {
    background: rgba(0, 0, 0, 0.02);
}

/* 股票代號標籤 */
.stock-name-cell {
    display: flex;
    flex-direction: column;
    font-weight: 600;
}

.stock-symbol-sub {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-top: 2px;
}

/* 漲跌損益樣式 */
.pl-text {
    font-weight: 700;
}

.pl-text.gain {
    color: var(--stock-gain);
}

.pl-text.loss {
    color: var(--stock-loss);
}

.pl-text.zero {
    color: var(--text-primary);
}

/* 股票表格內小按鈕群組 */
.row-actions {
    display: flex;
    gap: 6px;
}

/* ==========================================
   新增：自訂帳戶設定與管理列表樣式
   ========================================== */
.accounts-management-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: 100%;
}

.account-management-item {
    background: var(--bg-gradient-start);
    border: 1px solid var(--card-border);
    padding: 14px;
    border-radius: 14px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    transition: all var(--transition-speed) ease;
}

.account-management-item:hover {
    border-color: var(--primary-color);
}

.account-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.account-item-title {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-primary);
}

.account-item-type {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
}

.account-edit-form {
    display: flex;
    gap: 8px;
    align-items: center;
    width: 100%;
}

.account-edit-form input {
    flex: 1;
    padding: 8px 12px;
    font-size: 0.85rem;
    border-radius: 8px;
}

.save-inline-btn {
    background: var(--primary-color);
    color: #ffffff;
    border: none;
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition-speed) ease;
}

.save-inline-btn:hover {
    background: var(--primary-hover);
}

.delete-inline-btn {
    background: transparent;
    border: 1px solid var(--expense-color);
    color: var(--expense-color);
    padding: 8px 10px;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
}

.delete-inline-btn:hover {
    background: var(--expense-color);
    color: #ffffff;
}

/* ==========================================
   彈出視窗 (Modal Overlay) 樣式
   ========================================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.45);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.15), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-radius: 20px;
    padding: 26px;
    width: 90%;
    max-width: 400px;
    transform: scale(0.9);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal-overlay.active .modal-card {
    transform: scale(1);
}

.modal-card h3 {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

#modal-stock-title {
    font-size: 0.9rem;
    color: var(--primary-color);
    font-weight: 600;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 20px;
}

.modal-btn {
    padding: 10px 18px;
    border-radius: 10px;
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all var(--transition-speed) ease;
}

.modal-btn.cancel {
    background: var(--bg-gradient-start);
    color: var(--text-secondary);
}

.modal-btn.cancel:hover {
    background: var(--input-border);
}

.modal-btn.confirm {
    background: var(--primary-color);
    color: #ffffff;
}

.modal-btn.confirm:hover {
    background: var(--primary-hover);
}

/* ==========================================
   頁尾 (Footer)
   ========================================== */
.app-footer {
    text-align: center;
    margin-top: 10px;
    padding: 10px 0;
}

.app-footer p {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* ==========================================
   動畫效果 (Animations)
   ========================================== */
@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-5px);
    }
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* ==========================================
   響應式設計 (RWD) 調整
   ========================================== */
@media (max-width: 950px) {
    .main-content {
        grid-template-columns: 1fr;
    }
    
    .dashboard-section {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 720px) {
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    #account-distribution-card {
        grid-column: span 1 !important;
    }
    
    .account-balances-list {
        grid-template-columns: 1fr;
    }
    
    .balance-card {
        min-height: 120px;
        padding: 20px;
    }
    
    .balance-card .card-value {
        font-size: 2rem;
    }
    
    .stat-card {
        padding: 16px;
    }
    
    .stat-card .card-value {
        font-size: 1.35rem;
    }
    
    .history-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .filter-controls {
        width: 100%;
    }
    
    .filter-select {
        flex: 1;
    }
}