:root{
    --background-main: #ddd;
    --background-sub: #f9f9f9;
    --main-text: #333;
    --main-border: #ccc;
    --sub-bg: #f9f9f9;
    --accent-color: #4a6fa5;
    --danger-color: #ff6b6b;
    --success-color: #6bc77f;
    --card-shadow: 0 2px 8px rgba(0,0,0,0.1);
    --border-radius: 8px;
    --modal-overlay: rgba(0, 0, 0, 0.5);
}

@media (prefers-color-scheme: dark) {
    :root {
        --background-main: #262a2b;
        --background-sub: #444;
        --main-text: #ddd;
        --main-border: #555;
        --sub-bg: #555;
        --card-shadow: 0 2px 8px rgba(0,0,0,0.3);
        --modal-overlay: rgba(0, 0, 0, 0.7);
    }
}

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

body {
    background-color: var(--background-main);
    color: var(--main-text);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    padding: 0;
    margin: 0;
}

/* ヘッダースタイル */
header {
    background-color: var(--accent-color);
    padding: 1rem;
    color: white;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
}

.header-container h1 {
    margin-bottom: 1rem;
    cursor: pointer;
}

.nav-container {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
}

.date-filters, .date-input, .label-filters {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

/* メインコンテンツ */
main {
    max-width: 1200px;
    margin: 1rem auto;
    padding: 0 1rem;
}

.card {
    background-color: var(--background-sub);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--card-shadow);
}

/* フォーム要素のスタイル */
input, select, button {
    padding: 0.5rem;
    border-radius: 4px;
    border: 1px solid var(--main-border);
    background-color: var(--sub-bg);
    color: var(--main-text);
    font-size: 1rem;
}

input:focus, select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(74, 111, 165, 0.2);
}

button {
    background-color: var(--accent-color);
    color: white;
    cursor: pointer;
    border: none;
    min-width: 80px;
    transition: background-color 0.2s;
}

button:hover {
    background-color: #3a5f95;
}

button[delete_id] {
    background-color: var(--danger-color);
}

button[delete_id]:hover {
    background-color: #e55555;
}

/* 入力フォーム */
#input-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
    margin-bottom: 1.5rem;
    transition: all 0.3s ease-in-out;
    overflow: hidden;
    /* max-height: 200px; */
}

#input-container.hidden {
    max-height: 0;
    padding: 0;
    margin: 0;
    opacity: 0;
}

#input-container input, 
#input-container select {
    flex: 1;
    min-width: 120px;
}

#input-container input[type="number"] {
    width: 80px;
    flex: 0 0 80px;
}

#input-container button {
    flex: 0 0 auto;
}

/* モーダルダイアログスタイル */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--modal-overlay);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal-content {
    background-color: var(--background-sub);
    padding: 20px;
    border-radius: var(--border-radius);
    width: 300px;
    box-shadow: var(--card-shadow);
    animation: modalFadeIn 0.3s ease-out;
}

@keyframes modalFadeIn {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

.modal-title {
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.modal-input-group {
    margin-bottom: 15px;
}

.modal-input-group label {
    display: block;
    margin-bottom: 5px;
}

.modal-input-group input {
    width: 100%;
    margin-bottom: 10px;
}

.modal-buttons {
    display: flex;
    justify-content: space-between;
}

/* レシート読込フォーム & 検索フォーム */
#receipt-container, #search-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1.5rem;
    transition: all 0.3s ease-in-out;
    overflow: hidden;
    /* max-height: 1000px; */
}

#receipt-container.hidden, #search-container.hidden {
    max-height: 0;
    padding: 0;
    margin: 0;
    opacity: 0;
}

/* 検索フォーム専用スタイル */
.search-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.search-filters {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    flex-wrap: wrap;
}

.sort-filters {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    flex-wrap: wrap;
}

.search-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 1rem;
}

.search-submit-button, .search-clear-button, .search-cancel-button {
    padding: 8px 16px;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    font-weight: 500;
}

.search-submit-button {
    background-color: var(--accent-color);
    color: white;
}

.search-submit-button:hover {
    background-color: #3a5f95;
}

.search-clear-button {
    background-color: var(--success-color);
    color: white;
}

.search-clear-button:hover {
    background-color: #5ab56c;
}

.search-cancel-button {
    background-color: var(--danger-color);
    color: white;
}

.search-cancel-button:hover {
    background-color: #e55555;
}

.receipt-upload {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.receipt-preview {
    max-width: 100%;
    margin: 0 auto;
}

.receipt-preview img {
    max-width: 100%;
    max-height: 300px;
    display: block;
    margin: 0 auto;
    border: 1px solid var(--main-border);
    border-radius: var(--border-radius);
}

.receipt-result {
    margin-top: 1rem;
}

.receipt-result-container {
    background-color: var(--background-sub);
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 20px;
    max-width: 800px;
    margin: 0 auto;
}

.receipt-header {
    border-bottom: 1px solid var(--main-border);
    padding-bottom: 15px;
    margin-bottom: 15px;
}

.receipt-store-name {
    font-size: 1.5em;
    margin: 0 0 10px 0;
}

.receipt-date, .receipt-sum {
    margin: 5px 0;
    color: var(--main-text);
    opacity: 0.8;
}

.receipt-category-form {
    margin-top: 15px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
}

.receipt-recommended-category {
    display: flex;
    align-items: center;
    margin-right: 15px;
}

.recommended-label {
    font-weight: bold;
    margin-right: 5px;
}

.category-badge {
    padding: 3px 8px;
    border-radius: 12px;
    background-color: var(--accent-color);
    color: white;
    font-size: 0.9em;
}

.receipt-category-select {
    padding: 6px 10px;
    border-radius: 4px;
    border: 1px solid var(--main-border);
}

.receipt-items-list {
    margin: 20px 0;
    border: 1px solid var(--main-border);
    border-radius: 4px;
    overflow: hidden;
}

.receipt-item {
    display: grid;
    grid-template-columns: 3fr 1fr 1fr 1fr;
    padding: 8px 12px;
    border-bottom: 1px solid var(--main-border);
}

.receipt-item:last-child {
    border-bottom: none;
}

.receipt-item-header {
    background-color: var(--background-main);
    font-weight: bold;
}

.receipt-item span {
    padding: 5px;
}

.item-name {
    font-weight: 500;
}

.item-quantity, .item-price, .item-total-price {
    text-align: right;
}

.receipt-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 20px;
}

.receipt-submit-button, .receipt-cancel-button {
    padding: 8px 16px;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    font-weight: 500;
}

.receipt-submit-button {
    background-color: var(--success-color);
    color: white;
}

.receipt-submit-button:hover {
    background-color: #5ab56c;
}

.receipt-cancel-button {
    background-color: var(--danger-color);
    color: white;
}

.receipt-cancel-button:hover {
    background-color: #e55555;
}

/* テーブルスタイル */
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
    overflow-x: auto;
}

th {
    background-color: var(--background-main);
    padding: 0.75rem;
    text-align: left;
}

td {
    padding: 0.75rem;
    background-color: var(--background-sub);
    border-bottom: 1px solid var(--main-border);
}

.right_align {
    text-align: right;
}

/* ラベル関連のスタイル */
.label-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
    margin-bottom: 0.5rem;
}

.label {
    display: inline-flex;
    align-items: center;
    background-color: var(--sub-bg);
    border: 1px solid var(--main-border);
    border-radius: 3px;
    padding: 0.25rem 0.5rem;
    font-size: 0.85rem;
}

.label-remove-btn {
    border: none;
    background: none;
    color: var(--danger-color);
    cursor: pointer;
    margin-left: 0.25rem;
    min-width: auto;
    padding: 0;
    font-size: 1rem;
}

[data-label-manager] {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

.label-select, .label-add-btn {
    margin: 0;
    padding: 0.3rem 0.5rem;
    font-size: 0.9rem;
}

.label-add-btn {
    min-width: auto;
    padding: 0.3rem 0.5rem;
}

/* グラフスタイル */
canvas {
    max-width: 100%;
    height: auto;
}

/* グラフコンテナのスタイル */
.chart-container {
    width: 60%;
    max-width: 600px;
    margin: 20px auto;
}

/* 統計コンテナのスタイル */
.statistics-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
}

/* 概要折りたたみスタイル */
.abstract-expandable {
    cursor: pointer;
    position: relative;
}

.abstract-short {
    padding-right: 20px; /* トグルボタンのスペース */
}

.abstract-full {
    word-break: break-word;
    padding-right: 20px; /* トグルボタンのスペース */
}

.abstract-toggle {
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--accent-color);
    font-size: 0.8rem;
    cursor: pointer;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
    
    .date-filters, .date-input, .label-filters {
        width: 100%;
        flex-wrap: wrap;
        gap: 0.4rem;
    }
    
    /* モバイルでボタンを2行に分けて表示 */
    .label-filters {
        display: grid;
        grid-template-columns: 1fr auto auto;
        grid-template-rows: auto auto;
        gap: 0.4rem;
        align-items: center;
    }
    

    
    .label-filters select {
        grid-column: 1 / -1;
        width: 100%;
        margin-bottom: 0.2rem;
    }
    
    .label-filters button {
        flex: 1;
        min-width: 0;
        font-size: 0.9rem;
        padding: 0.4rem 0.6rem;
    }
    
    #input-container {
        flex-direction: column;
        align-items: flex-start;
    }
    
    #input-container input, 
    #input-container select,
    #input-container button {
        width: 100%;
        flex: none;
    }
    
    table {
        display: block;
        overflow-x: auto;
    }
    
    .modal-content {
        width: 95vw;
        max-width: 350px;
        margin: 1rem;
        max-height: 90vh;
        overflow-y: auto;
    }

    #input-container input[type="number"] {
        width: auto;
        flex: auto;
    }
    
    /* モバイル向けグラフサイズ調整 */
    .chart-container {
        width: 100%;
    }
}

/* フォームスタイル */
.data-input-form {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    width: 100%;
}

@media (max-width: 768px) {
    .data-input-form {
        flex-direction: column;
    }
}

/* メッセージスタイル */
.error-message, .success-message {
    padding: 0.75rem 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    font-weight: 500;
    animation: fadeIn 0.3s ease-in-out;
    width: 100%;
}

.error-message {
    background-color: rgba(255, 107, 107, 0.2);
    border-left: 4px solid var(--danger-color);
    color: var(--danger-color);
}

.success-message {
    background-color: rgba(107, 199, 127, 0.2);
    border-left: 4px solid var(--success-color);
    color: var(--success-color);
}

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

/* テーブルレスポンシブ改善 */
.table-container {
    width: 100%;
    overflow-x: auto;
}

.empty-message {
    text-align: center;
    padding: 2rem;
    color: var(--main-text);
    opacity: 0.7;
}

/* トグルスイッチのスタイル */
.toggle-switch-container {
    margin: 0.5rem 0 1rem;
    display: flex;
    justify-content: center;
}

.toggle-switch-label {
    display: inline-flex;
    align-items: center;
    cursor: pointer;
    font-size: 1rem;
    color: var(--main-text);
    position: relative;
}

.toggle-switch-checkbox {
    height: 0;
    width: 0;
    opacity: 0;
    position: absolute;
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 40px;
    height: 20px;
    background-color: var(--main-border);
    border-radius: 20px;
    margin-left: 10px;
    transition: all 0.3s;
}

.toggle-switch::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background-color: white;
    top: 2px;
    left: 2px;
    transition: all 0.3s;
}

.toggle-switch-checkbox:checked + .toggle-switch {
    background-color: var(--accent-color);
}

.toggle-switch-checkbox:checked + .toggle-switch::after {
    transform: translateX(20px);
}

.toggle-switch-checkbox:focus + .toggle-switch {
    box-shadow: 0 0 3px var(--accent-color);
}

/* 金額表示の日本語化 */
.statistics-container div:nth-child(2) {
    margin-top: 0.5rem;
}

/* エクスポートモーダルのスタイル */
.export-modal-content {
    width: 400px;
    max-width: 90vw;
}

.export-section {
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--main-border);
}

.export-section:last-of-type {
    border-bottom: none;
}

.export-section h4 {
    margin: 0 0 10px 0;
    color: var(--accent-color);
    font-size: 1rem;
}

.export-input-group {
    margin-bottom: 10px;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.export-input-group label {
    font-weight: 500;
    color: var(--main-text);
}

.export-input-group input,
.export-input-group select {
    width: 100%;
    padding: 8px;
    border: 1px solid var(--main-border);
    border-radius: 4px;
    background-color: var(--sub-bg);
    color: var(--main-text);
}

.export-input-group input:focus,
.export-input-group select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(74, 111, 165, 0.2);
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .export-modal-content {
        width: 95vw;
        max-width: 95vw;
        max-height: 90vh;
        overflow-y: auto;
        margin: 1rem 0.5rem;
        padding: 15px;
    }
    
    .export-input-group {
        margin-bottom: 15px;
    }
    
    .export-section h4 {
        font-size: 0.95rem;
    }
    
    .modal-buttons {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .modal-buttons button {
        width: 100%;
        margin: 0;
    }
}

/* より小さい画面向けの追加対応 */
@media (max-width: 480px) {
    .header-container {
        padding: 0.5rem;
    }
    
    .date-filters button,
    .label-filters button {
        font-size: 0.8rem;
        padding: 0.3rem 0.4rem;
        min-width: 60px;
    }
    
    .label-filters {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: auto auto auto;
    }
    
    .label-filters select {
        grid-column: 1 / -1;
    }
    
    .label-filters button:nth-of-type(1) {
        grid-column: 1;
    }
    
    .label-filters button:nth-of-type(2) {
        grid-column: 2;
    }
    
    .label-filters button:nth-of-type(3) {
        grid-column: 1 / -1;
        margin-top: 0.2rem;
    }
    
    .export-modal-content {
        margin: 0.5rem 0.25rem;
        padding: 10px;
    }
    
    .modal-content {
        margin: 0.5rem;
        padding: 15px;
    }
}

/* 検索結果のヘッダー */
.search-results-header {
    margin-bottom: 1.5rem;
    padding: 1rem;
    background-color: var(--background-sub);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--accent-color);
}

.search-results-header h2 {
    margin: 0 0 0.5rem 0;
    color: var(--accent-color);
    font-size: 1.4rem;
}

.search-results-header p {
    margin: 0;
    color: var(--main-text);
    opacity: 0.8;
}

/* 検索コンテナのモバイル対応 */
@media (max-width: 768px) {
    .search-form {
        width: 100%;
    }
    
    .search-filters {
        display: grid;
        grid-template-columns: 1fr;
        gap: 0.5rem;
        margin-bottom: 1rem;
    }
    
    .search-filters input {
        width: 100%;
        box-sizing: border-box;
    }
    
    .sort-filters {
        display: grid;
        grid-template-columns: auto 1fr;
        gap: 0.5rem;
        align-items: center;
        margin-bottom: 1rem;
    }
    
    .sort-filters select {
        width: 100%;
    }
    
    .search-actions {
        display: flex;
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .search-actions button {
        width: 100%;
        padding: 0.6rem;
        font-size: 1rem;
    }
}