/**
 * 汎用複合検索 CSS
 * シニアエンジニア設計：UX/UI・レスポンシブ・メンテナンス性重視
 */

/* ========================================
   基本設定・変数定義
======================================== */
.barom-universal-search {
    --primary-color: #2D2C2F;
    --primary-hover: #1a1a1c;
    --secondary-color: #F5F5F5;
    --accent-color: #2D2C2F;
    --text-color: #2D2C2F;
    --text-light: #666;
    --border-color: #e0e0e0;
    --shadow-light: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 4px 16px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text-color);
}

/* ========================================
   検索ヘッダー
======================================== */
.search-header {
    text-align: center;
    margin-bottom: 2rem;
}

.search-title {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--primary-color);
    margin: 0 0 0.5rem 0;
}

.search-subtitle {
    font-size: 1rem;
    color: var(--text-light);
    margin: 0;
}

/* ========================================
   検索タブ
======================================== */
.search-tabs {
    background: var(--secondary-color);
    box-shadow: none;
    margin-bottom: 2rem;
    overflow: hidden;
    border-radius: 0;
}

.tab-nav {
    display: flex;
    background: transparent;
    border-bottom: 1px solid var(--border-color);
}

.tab-btn {
    flex: 1;
    padding: 1rem 1.5rem;
    background: white;
    border: none;
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary-color);
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.tab-btn:hover {
    background: #f0f0f0;
}

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

.tab-btn.active::after {
    content: none;
}

.tab-content {
    display: none;
    padding: 2rem;
}

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

/* ========================================
   検索フォーム
======================================== */
.search-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* レイアウト：水平 */
.search-form.layout-horizontal {
    display: grid;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .search-form.layout-horizontal {
        grid-template-columns: 2fr 1fr;
        grid-template-areas: 
            "selectors keyword"
            "actions actions";
    }
    
    .search-selectors { grid-area: selectors; }
    .keyword-search { grid-area: keyword; }
    .search-actions { grid-area: actions; }
}

/* レイアウト：垂直 */
.search-form.layout-vertical {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* ========================================
   セレクター（エリア・タグ）
======================================== */
.search-selectors {
    display: grid;
    gap: 1rem;
}

@media (min-width: 568px) {
    .search-selectors {
        grid-template-columns: 1fr 1fr;
    }
}

/* 2段階エリアセレクター */
.area-selectors {
    display: grid;
    gap: 1rem;
    grid-template-columns: 1fr;
}

@media (min-width: 568px) {
    .area-selectors {
        grid-template-columns: 1fr 1fr;
    }
}

.area-selectors .selector-group:last-child select:disabled {
    background-color: #f5f5f5;
    color: #999;
    cursor: not-allowed;
}

.selector-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.selector-group label {
    font-weight: 600;
    color: var(--text-color);
    font-size: 0.9rem;
}

/* セレクトボックス拡張 */
.select-wrapper {
    position: relative;
    display: block;
}

.select-wrapper::after {
    content: '▼';
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    font-size: 0.8rem;
    color: var(--text-light);
}

.search-select {
    width: 100%;
    padding: 12px 40px 12px 16px;
    border: 2px solid var(--border-color);
    font-size: 1rem;
    background: white;
    appearance: none;
    transition: var(--transition);
}

.search-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 124, 186, 0.1);
}

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

/* 複数選択の表示改善 */
.select-wrapper[data-selected]::before {
    content: attr(data-selected) '件選択中';
    position: absolute;
    top: -20px;
    right: 0;
    font-size: 0.75rem;
    color: var(--primary-color);
    font-weight: 600;
}

/* ========================================
   キーワード検索
======================================== */
.keyword-search {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.keyword-search-container {
    display: flex;
    gap: 1rem;
    align-items: stretch;
}

.keyword-input {
    flex: 1;
    padding: 16px 20px;
    border: 2px solid var(--border-color);
    font-size: 1.1rem;
    transition: var(--transition);
}

.keyword-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 124, 186, 0.1);
}

.keyword-input::placeholder {
    color: var(--text-light);
}

.keyword-search-btn {
    min-width: 120px;
    white-space: nowrap;
}

.keyword-search-tips {
    margin-top: 1rem;
    padding: 1rem;
    background: #f8f9fa;
    border-left: 4px solid var(--primary-color);
}

.tips-text {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-light);
}

.tips-icon {
    font-size: 1rem;
}

.search-input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    font-size: 1rem;
    transition: var(--transition);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 124, 186, 0.1);
}

.search-input::placeholder {
    color: var(--text-light);
}

/* シンプル検索コンテナ */
.simple-search-container {
    display: flex;
    gap: 1rem;
    align-items: stretch;
    max-width: 600px;
    margin: 0 auto;
}

.simple-search-input {
    flex: 1;
    padding: 16px 20px;
    border: 2px solid var(--border-color);
    font-size: 1.1rem;
    transition: var(--transition);
}

.simple-search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 124, 186, 0.1);
}

.simple-search-btn {
    min-width: 120px;
    white-space: nowrap;
}

/* レスポンシブ対応 */
@media (max-width: 567px) {
    .keyword-search-container,
    .simple-search-container {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .keyword-search-btn,
    .simple-search-btn {
        min-width: auto;
    }
}

/* ========================================
   検索アクション
======================================== */
.search-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 12px 24px;
    border: none;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    min-width: 140px;
    justify-content: center;
}

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

.btn-search:hover:not(:disabled) {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.btn-search:disabled,
.btn-search.loading {
    background: var(--text-light);
    cursor: not-allowed;
    transform: none;
}

.btn-search.loading .btn-text::after {
    content: '...';
    animation: loading-dots 1.5s infinite;
}

.btn-reset {
    background: var(--secondary-color);
    color: var(--text-color);
    border: 2px solid var(--border-color);
}

.btn-reset:hover {
    background: #e0e0e0;
    border-color: var(--text-light);
}

.btn-icon {
    font-size: 1.1rem;
}

@keyframes loading-dots {
    0%, 20% { content: ''; }
    40% { content: '.'; }
    60% { content: '..'; }
    80%, 100% { content: '...'; }
}

/* ========================================
   特徴タグ・人気タグ
======================================== */
.feature-tags,
.popular-tags {
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.tags-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin: 0 0 1rem 0;
    color: var(--text-color);
}

.tags-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag-button {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 8px 12px;
    background: var(--secondary-color);
    border: 1px solid var(--border-color);
    font-size: 0.9rem;
    color: var(--text-color);
    cursor: pointer;
    transition: opacity 0.3s ease, transform 0.3s ease, background 0.3s ease, border-color 0.3s ease;
    text-decoration: none;
    opacity: 1;
}

.tag-button.fade-out {
    opacity: 0;
    transform: scale(0.95);
}

.tag-button.hidden {
    display: none !important;
}

.tag-button:hover {
    background: #e0e0e0;
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

.tag-button.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.tag-count {
    font-size: 0.8rem;
    opacity: 0.8;
}

/* ========================================
   選択中フィルター
======================================== */
.active-filters {
    background: #f9f9f9;
    padding: 1rem;
    margin-bottom: 1rem;
    border-left: 4px solid var(--primary-color);
}

.filters-title {
    font-size: 0.9rem;
    font-weight: 600;
    margin: 0 0 0.5rem 0;
    color: var(--text-color);
}

.filters-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.filter-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 4px 8px;
    background: white;
    border: 1px solid var(--border-color);
    font-size: 0.85rem;
    color: var(--text-color);
}

.filter-remove {
    background: none;
    border: none;
    color: var(--accent-color);
    cursor: pointer;
    font-weight: bold;
    padding: 0;
    width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.filter-remove:hover {
    background: var(--accent-color);
    color: white;
}

/* ========================================
   検索結果
======================================== */
.search-results {
    margin-top: 2rem;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: white;
    box-shadow: var(--shadow-light);
    flex-wrap: wrap;
    gap: 1rem;
}

.results-count {
    font-weight: 600;
    color: var(--text-color);
}

.count-number {
    color: var(--primary-color);
    font-size: 1.2rem;
    font-weight: 700;
}

.results-sort select {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    font-size: 0.9rem;
}

/* ========================================
   結果グリッド
======================================== */
.results-grid {
    display: grid;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

@media (min-width: 568px) {
    .results-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 768px) {
    .results-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1024px) {
    .results-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ========================================
   結果カード
======================================== */
.result-card {
    background: white;
    overflow: hidden;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.result-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-medium);
}

.card-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/9;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.card-image:hover img {
    transform: scale(1.05);
}

.card-content {
    padding: 1rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.card-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0 0 0.5rem 0;
    line-height: 1.4;
}

.card-title a {
    color: var(--text-color);
    text-decoration: none;
    transition: var(--transition);
}

.card-title a:hover {
    color: var(--primary-color);
}

.card-excerpt {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 1rem;
    flex: 1;
}

.card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: var(--text-light);
}

/* ========================================
   ページネーション
======================================== */
.results-pagination {
    display: flex;
    justify-content: center;
    margin-top: 2rem;
}

.pagination-controls {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.page-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    height: 44px;
    padding: 0 12px;
    border: 1px solid var(--border-color);
    background: white;
    color: var(--text-color);
    text-decoration: none;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
}

.page-btn:hover:not(.active) {
    background: var(--secondary-color);
    border-color: var(--primary-color);
}

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

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

/* ========================================
   ローディング・エラー
======================================== */
.search-loading,
.search-error,
.no-results {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-light);
    font-size: 1.1rem;
}

.search-loading {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading-shimmer 1.5s infinite;
}

.search-error {
    color: var(--accent-color);
    background: #ffeaea;
    border: 1px solid #ffcccb;
}

@keyframes loading-shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* ========================================
   アクセシビリティ
======================================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* フォーカス表示強化 */
.btn:focus,
.search-input:focus,
.search-select:focus,
.tag-button:focus,
.page-btn:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* ========================================
   印刷対応
======================================== */
@media print {
    .search-form,
    .popular-tags,
    .results-pagination {
        display: none;
    }
    
    .result-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ccc;
    }
}