/* =============================================
   LINKLET FAQ カスタムCSS - IKnowledgeBase Pro
   Bulma フレームワーク対応版 + ミニマル階層表示
   ============================================= */

/* CSS変数の定義 */
:root {
    --linklet-primary: rgba(11,83,148,1);
    --linklet-secondary: rgba(11,83,148,0.8);
    --linklet-bg-light: #f5f7fa;
    --linklet-bg-secondary: #e8f2ff;
    --linklet-white: #ffffff;
    --linklet-text-dark: #2c3e50;
    --linklet-text-light: #6c757d;
    --linklet-border: #e0e6ed;
    --linklet-hover: #f8f9ff;
    --linklet-shadow: 0 4px 25px rgba(0,0,0,0.08);
    --linklet-shadow-hover: 0 8px 40px rgba(0,0,0,0.12);
    --linklet-header-gradient: linear-gradient(135deg, rgba(11,83,148,0.15) 0%, rgba(11,83,148,0.25) 100%);
}

/* 全体の背景改善 */
body {
    background: linear-gradient(135deg, var(--linklet-bg-light) 0%, var(--linklet-bg-secondary) 100%) !important;
    min-height: 100vh;
}

/* ====================================
   ヘッダーの改善
   ==================================== */

.header {
    background: linear-gradient(135deg, var(--linklet-primary) 0%, var(--linklet-secondary) 100%) !important;
    box-shadow: var(--linklet-shadow) !important;
}

.navbar {
    background: transparent !important;
}

.navbar-brand .brand-name {
    color: var(--linklet-white) !important;
    font-size: 1.8rem !important;
    font-weight: 300 !important;
}

.navbar-item {
    color: rgba(255, 255, 255, 0.9) !important;
}

.navbar-item:hover {
    color: var(--linklet-white) !important;
    background-color: rgba(255, 255, 255, 0.1) !important;
}

/* ====================================
   検索フォームの改善
   ==================================== */

.search-form {
    background: var(--linklet-white) !important;
    padding: 2rem !important;
    margin: -1rem 1rem 2rem 1rem !important;
    border-radius: 16px !important;
    box-shadow: var(--linklet-shadow) !important;
    position: relative !important;
    z-index: 10 !important;
}

.search-form input.input {
    border: 2px solid var(--linklet-border) !important;
    border-radius: 50px !important;
    padding: 1rem 1rem 1rem 3rem !important;
    font-size: 1.1rem !important;
    transition: all 0.3s ease !important;
}

.search-form input.input:focus {
    border-color: var(--linklet-primary) !important;
    box-shadow: 0 0 0 3px rgba(11, 83, 148, 0.1) !important;
}
/* ====================================
   ミニマル階層表示（パンくずリスト）
   ==================================== */

.breadcrumb-minimal {
    margin: 2rem 1rem 2rem 1rem !important;
    padding: 2rem !important;
    background: var(--linklet-white) !important;
    border-radius: 16px !important;
    box-shadow: var(--linklet-shadow) !important;
    border-left: 4px solid var(--linklet-primary) !important;
    position: relative !important;
    z-index: 5 !important;
}

.breadcrumb-path {
    font-size: 0.9rem !important;
    color: var(--linklet-text-light) !important;
    margin-bottom: 0.75rem !important;
    font-weight: 400 !important;
    line-height: 1.4 !important;
}

.breadcrumb-path a {
    color: var(--linklet-primary) !important;
    text-decoration: none !important;
    transition: all 0.3s ease !important;
    font-weight: 500 !important;
}

.breadcrumb-path a:hover {
    color: var(--linklet-secondary) !important;
    text-decoration: underline !important;
}

.breadcrumb-current {
    font-size: 1.8rem !important;
    font-weight: 600 !important;
    color: var(--linklet-text-dark) !important;
    margin: 0 !important;
    line-height: 1.2 !important;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif !important;
}

/* レスポンシブ対応 */
@media screen and (max-width: 768px) {
    .breadcrumb-minimal {
        margin: 1rem 0.5rem 1.5rem 0.5rem !important;
        padding: 1.5rem !important;
    }
    
    .breadcrumb-current {
        font-size: 1.4rem !important;
    }
    
    .breadcrumb-path {
        font-size: 0.8rem !important;
    }
}

/* ====================================
   カテゴリグリッドの改善
   ==================================== */

/* Bulmaのカラムグリッド */
.columns.is-multiline {
    margin: 2rem -0.75rem !important;
}

.column {
    padding: 1rem !important;
}

/* ====================================
   パネル（カテゴリカード）の改善
   ==================================== */

.panel {
    border-radius: 16px !important;
    overflow: hidden !important;
    box-shadow: var(--linklet-shadow) !important;
    transition: all 0.3s ease !important;
    border: 1px solid #f0f0f0 !important;
    position: relative !important;
    background: var(--linklet-white) !important;
}

.panel:hover {
    transform: translateY(-8px) !important;
    box-shadow: var(--linklet-shadow-hover) !important;
}

/* パネルヘッダー（画像エリア風）*/
.panel-heading {
    background: var(--linklet-header-gradient) !important;
    color: var(--linklet-text-dark) !important;
    padding: 3rem 1.5rem 2rem 1.5rem !important;
    text-align: center !important;
    position: relative !important;
    border-bottom: none !important;
    min-height: 150px !important;
    display: flex !important;
    flex-direction: column !important;
    justify-content: space-between !important;
}

/* 空の画像エリアを作成 */
.panel-heading::before {
    content: '';
    display: block;
    width: 80px;
    height: 80px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    margin: 0 auto 1rem auto;
    border: 2px solid rgba(11,83,148,0.2);
}

/* レベルアイテムのアイコンを非表示にして、空の画像エリアのみ表示 */
.panel-heading .level-left .level-item.has-text-primary {
    display: none !important;
}

/* カテゴリ別アイコンを削除 */
.panel-heading .level-left .level-item.has-text-primary::after {
    display: none !important;
}

/* パネルタイトル */
.panel-heading .title {
    color: var(--linklet-text-dark) !important;
    font-size: 1.1rem !important;
    font-weight: 600 !important;
    margin-bottom: 0.5rem !important;
    line-height: 1.3 !important;
    text-align: center !important;
    max-width: 100% !important;
    word-wrap: break-word !important;
    display: block !important;
}

/* パンくずリストを見やすくする */
.panel-heading .title {
    background: rgba(255, 255, 255, 0.8) !important;
    padding: 0.75rem 1rem !important;
    border-radius: 8px !important;
    border: 1px solid rgba(11,83,148,0.2) !important;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1) !important;
    margin: 0 auto !important;
    max-width: 280px !important;
}

/* パンくずの区切り文字を強調 */
.panel-heading .title {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif !important;
    letter-spacing: 0.5px !important;
}

/* 投稿数タグ */
.panel-heading .tag {
    background: rgba(255, 255, 255, 0.8) !important;
    color: #555 !important;
    border: none !important;
}

/* ====================================
   パネルタブとコンテンツ
   ==================================== */

.panel-tabs a {
    background: #f8f9fa !important;
    color: var(--linklet-primary) !important;
    border-radius: 15px 15px 0 0 !important;
    padding: 0.5rem 1rem !important;
    margin: 0 0.25rem !important;
    font-size: 0.85rem !important;
    font-weight: 500 !important;
    border: none !important;
}

.panel-tabs a.is-active {
    background: var(--linklet-primary) !important;
    color: var(--linklet-white) !important;
}

/* ====================================
   パネルブロック（Q&Aリスト）
   ==================================== */

.tabs-content {
    padding: 1rem 1.5rem !important;
}

.panel-block {
    padding: 0.75rem 0 !important;
    border-bottom: 1px solid #f0f0f0 !important;
    transition: all 0.2s ease !important;
    border-left: none !important;
    border-right: none !important;
    color: #495057 !important;
}

.panel-block:hover {
    background: var(--linklet-hover) !important;
    margin: 0 -1.5rem !important;
    padding: 0.75rem 1.5rem !important;
    border-radius: 8px !important;
    border-bottom: 1px solid transparent !important;
    color: var(--linklet-primary) !important;
}

.panel-block:last-child {
    border-bottom: none !important;
}

.panel-block .panel-icon {
    color: var(--linklet-primary) !important;
    margin-right: 0.75rem !important;
}

/* Q&Aアイコンを変更 */
.panel-block .panel-icon .icon-book::before {
    content: '❓';
    font-family: inherit !important;
}

/* ====================================
   View all ボタン
   ==================================== */

.panel-block.mt-5 {
    border: none !important;
    padding: 1rem 1.5rem !important;
    justify-content: center !important;
}

.panel-block .button {
    background: linear-gradient(135deg, var(--linklet-primary) 0%, rgba(11,83,148,0.9) 100%) !important;
    color: var(--linklet-white) !important;
    border: none !important;
    border-radius: 25px !important;
    padding: 0.75rem 1.5rem !important;
    font-weight: 500 !important;
    transition: all 0.3s ease !important;
    box-shadow: none !important;
}

.panel-block .button:hover {
    transform: translateY(-2px) !important;
    box-shadow: 0 4px 15px rgba(11,83,148,0.3) !important;
    background: linear-gradient(135deg, var(--linklet-primary) 0%, rgba(11,83,148,0.9) 100%) !important;
    color: var(--linklet-white) !important;
}

/* ====================================
   フッターの改善
   ==================================== */

.footer {
    background:#fff !important;
    margin-top: 4rem !important;
}

.footer .navbar-item {
    color:black !important;
}

/* ====================================
   レスポンシブ対応
   ==================================== */

@media screen and (max-width: 768px) {
    .columns.is-multiline {
        margin: 1rem -0.75rem !important;
    }
    
    .search-form {
        margin: -1rem 0.5rem 1.5rem 0.5rem !important;
        padding: 1.5rem 1rem !important;
    }
    
    .search-form::before {
        left: 2rem;
        top: 2.5rem;
    }
    
    .panel-heading {
        padding: 1.5rem 1rem !important;
    }
    
    .navbar-brand .brand-name {
        font-size: 1.5rem !important;
    }
}

/* ====================================
   アニメーション効果
   ==================================== */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.column .panel {
    animation: fadeInUp 0.6s ease forwards;
}

.column:nth-child(1) .panel { animation-delay: 0.1s; }
.column:nth-child(2) .panel { animation-delay: 0.2s; }
.column:nth-child(3) .panel { animation-delay: 0.3s; }
.column:nth-child(4) .panel { animation-delay: 0.4s; }
.column:nth-child(5) .panel { animation-delay: 0.5s; }
.column:nth-child(6) .panel { animation-delay: 0.6s; }

/* ミニマル階層表示のアニメーション */
.breadcrumb-minimal {
    animation: fadeInUp 0.6s ease forwards;
    animation-delay: 0.05s;
}

/* ====================================
   追加の微調整
   ==================================== */

/* メインコンテナの調整 */
.main {
    min-height: calc(100vh - 200px);
}

.section {
    background: transparent !important;
}

/* パネルヘッダーのlevelレイアウト調整 */
.panel-heading .level {
    margin-bottom: 0 !important;
}

.panel-heading .level-left {
    flex-direction: column !important;
    align-items: center !important;
}

.panel-heading .level-item {
    margin-bottom: 0.5rem !important;
}

/* 最後の微調整 */
.panel-heading .level-right {
    position: absolute;
    top: 1rem;
    right: 1rem;
}

/* タブコンテンツの高さ統一 */
.tabs-content {
    min-height: 300px;
}

/* hover効果の強化 */
.panel-block a {
    color: inherit !important;
    text-decoration: none !important;
    width: 100%;
    display: block;
}

.panel-block:hover a {
    color: var(--linklet-primary) !important;
}

.card-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1rem;
    position: relative;
}

.card-icon img.category-icon {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* 画像が設定されていない時のプレースホルダー */
.icon-placeholder {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    background: rgba(255,255,255,0.3);
    border-radius: 12px;
}

/* 画像が設定されたら表示を切り替え */
.card-icon img[src]:not([src=""]) {
    display: block !important;
}

.card-icon img[src]:not([src=""]) + .icon-placeholder {
    display: none;
}