/* =====================================================
   借金6億ニキ公式メディア - カテゴリーページ専用スタイル
===================================================== */

/* =====================================================
   カテゴリーヒーローセクション
===================================================== */
.category-hero {
    position: relative;
    padding: 120px 0 60px;
    background: var(--midnight-blue);
    overflow: hidden;
}

.category-hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.category-hero-bg .grid-overlay {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 212, 255, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 10s linear infinite;
}

.category-hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.category-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 900;
    margin: 2rem 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.category-icon {
    font-size: 3rem;
    filter: none;
    -webkit-text-fill-color: initial;
}

.category-description {
    font-size: 1.25rem;
    color: var(--sky-blue);
    line-height: 1.8;
    margin-bottom: 3rem;
}

.category-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
}

.category-stats .stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1rem;
    background: rgba(0, 102, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 10px;
    min-width: 120px;
}

.category-stats .number {
    font-size: 2rem;
    font-weight: 900;
    color: var(--electric-blue);
    font-family: var(--font-display);
}

.category-stats .label {
    font-size: 0.875rem;
    color: var(--light-gray);
    margin-top: 0.5rem;
}

/* =====================================================
   フィルターセクション
===================================================== */
.filter-section {
    padding: 2rem 0;
    background: rgba(0, 61, 153, 0.1);
    border-bottom: 1px solid rgba(0, 212, 255, 0.2);
    position: sticky;
    top: 70px;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.filter-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.filter-options {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.75rem 1.5rem;
    background: rgba(0, 102, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    color: var(--white);
    border-radius: 25px;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-weight: 500;
}

.filter-btn:hover {
    background: rgba(0, 102, 255, 0.2);
    border-color: var(--electric-blue);
}

.filter-btn.active {
    background: var(--gradient-primary);
    border-color: var(--electric-blue);
    color: var(--white);
}

.search-box {
    display: flex;
    gap: 0.5rem;
    flex: 1;
    max-width: 300px;
}

.search-box input {
    flex: 1;
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 25px;
    color: var(--white);
    font-size: 1rem;
}

.search-box input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.search-box input:focus {
    outline: none;
    border-color: var(--electric-blue);
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.3);
}

.search-btn {
    padding: 0.75rem 1rem;
    background: var(--gradient-primary);
    border: none;
    border-radius: 25px;
    color: var(--white);
    cursor: pointer;
    font-size: 1.25rem;
    transition: all var(--transition-fast);
}

.search-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 5px 15px rgba(0, 212, 255, 0.3);
}

/* =====================================================
   記事リストセクション
===================================================== */
.articles-list {
    padding: 60px 0;
    background: var(--midnight-blue);
}

.list-wrapper {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 3rem;
}

.main-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* =====================================================
   記事アイテム
===================================================== */
.article-item {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 2rem;
    padding: 2rem;
    background: rgba(0, 102, 255, 0.05);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 15px;
    transition: all var(--transition-normal);
}

.article-item:hover {
    transform: translateX(5px);
    border-color: var(--electric-blue);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.2);
}

.article-item.featured {
    grid-template-columns: 350px 1fr;
    background: linear-gradient(135deg, 
        rgba(0, 102, 255, 0.1) 0%, 
        rgba(0, 212, 255, 0.05) 100%);
    border: 2px solid var(--electric-blue);
}

.article-thumbnail {
    position: relative;
    height: 180px;
    overflow: hidden;
    border-radius: 10px;
    background: var(--gradient-dark);
}

.article-item.featured .article-thumbnail {
    height: 220px;
}

.article-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.article-item:hover .article-thumbnail img {
    transform: scale(1.1);
}

.badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.5rem 1rem;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.article-info {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.875rem;
}

.meta span {
    color: var(--sky-blue);
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.meta .date {
    color: var(--light-gray);
}

.meta .reading-time::before {
    content: '•';
    margin: 0 0.25rem;
}

.meta .views::before {
    content: '•';
    margin: 0 0.25rem;
}

.article-info .title {
    margin-bottom: 1rem;
}

.article-info .title a {
    color: var(--white);
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.3;
    transition: color var(--transition-fast);
}

.article-item.featured .title a {
    font-size: 1.75rem;
}

.article-info .title a:hover {
    color: var(--electric-blue);
}

.excerpt {
    color: var(--light-gray);
    line-height: 1.6;
    margin-bottom: 1.5rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-item.featured .excerpt {
    -webkit-line-clamp: 4;
}

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

.tag {
    padding: 0.25rem 0.75rem;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    color: var(--electric-blue);
    border-radius: 15px;
    font-size: 0.75rem;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.tag:hover {
    background: var(--electric-blue);
    color: var(--white);
}

/* =====================================================
   ページネーション
===================================================== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-top: 3rem;
    padding: 2rem 0;
}

.page-btn {
    padding: 0.75rem 1.5rem;
    background: rgba(0, 102, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    color: var(--white);
    border-radius: 25px;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-weight: 500;
}

.page-btn:hover:not(:disabled) {
    background: var(--electric-blue);
    border-color: var(--electric-blue);
}

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

.page-numbers {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.page-num {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 102, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    color: var(--white);
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-weight: 600;
}

.page-num:hover {
    background: rgba(0, 102, 255, 0.3);
    border-color: var(--electric-blue);
}

.page-num.active {
    background: var(--gradient-primary);
    border-color: var(--electric-blue);
    color: var(--white);
}

.dots {
    color: var(--gray);
    padding: 0 0.5rem;
}

/* =====================================================
   カテゴリーサイドバー
===================================================== */
.category-sidebar {
    position: sticky;
    top: 150px;
    height: fit-content;
}

.category-sidebar .widget {
    background: rgba(0, 102, 255, 0.05);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 15px;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.category-sidebar .widget h3 {
    color: var(--electric-blue);
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
    border-bottom: 2px solid rgba(0, 212, 255, 0.2);
    padding-bottom: 0.75rem;
}

/* サブカテゴリーリスト */
.subcategory-list {
    list-style: none;
}

.subcategory-list li {
    margin-bottom: 0.75rem;
}

.subcategory-list a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--light-gray);
    padding: 0.5rem;
    border-radius: 5px;
    transition: all var(--transition-fast);
}

.subcategory-list a:hover {
    background: rgba(0, 212, 255, 0.1);
    color: var(--electric-blue);
    transform: translateX(5px);
}

.subcategory-list span {
    font-size: 0.75rem;
    color: var(--gray);
}

/* タグクラウド */
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag-item {
    padding: 0.5rem 1rem;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    color: var(--white);
    border-radius: 20px;
    font-size: 0.875rem;
    transition: all var(--transition-fast);
}

.tag-item:hover {
    background: var(--electric-blue);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 212, 255, 0.3);
}

/* おすすめ記事リスト */
.recommended-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.recommended-item {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 1rem;
    padding: 0.75rem;
    background: rgba(0, 102, 255, 0.05);
    border-radius: 10px;
    transition: all var(--transition-fast);
}

.recommended-item:hover {
    background: rgba(0, 102, 255, 0.1);
    transform: translateX(5px);
}

.recommended-item img {
    width: 80px;
    height: 60px;
    object-fit: cover;
    border-radius: 5px;
}

.recommended-info h4 {
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.recommended-info h4 a {
    color: var(--white);
    line-height: 1.3;
}

.recommended-info h4 a:hover {
    color: var(--electric-blue);
}

.recommended-info .views {
    font-size: 0.75rem;
    color: var(--gray);
}

/* =====================================================
   ニュースレターCTA
===================================================== */
.newsletter-cta {
    padding: 80px 0;
    background: linear-gradient(135deg, 
        rgba(0, 61, 153, 0.3) 0%, 
        rgba(0, 102, 255, 0.2) 100%);
    border-top: 1px solid rgba(0, 212, 255, 0.2);
}

.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.cta-content p {
    font-size: 1.25rem;
    color: var(--sky-blue);
    margin-bottom: 2rem;
}

.newsletter-cta .newsletter-form {
    display: flex;
    gap: 1rem;
    justify-content: center;
    max-width: 500px;
    margin: 0 auto;
}

.newsletter-cta .newsletter-form input {
    flex: 1;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 50px;
    color: var(--white);
    font-size: 1rem;
}

.newsletter-cta .newsletter-form input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

/* =====================================================
   レスポンシブデザイン
===================================================== */
@media (max-width: 1024px) {
    .list-wrapper {
        grid-template-columns: 1fr;
    }
    
    .category-sidebar {
        position: static;
        margin-top: 3rem;
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 2rem;
    }
    
    .article-item {
        grid-template-columns: 1fr;
    }
    
    .article-item.featured {
        grid-template-columns: 1fr;
    }
    
    .article-thumbnail {
        height: 200px;
    }
}

@media (max-width: 768px) {
    .category-title {
        font-size: 2rem;
        flex-direction: column;
    }
    
    .category-stats {
        gap: 1rem;
    }
    
    .filter-bar {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-options {
        justify-content: center;
    }
    
    .search-box {
        max-width: 100%;
    }
    
    .article-info .title a {
        font-size: 1.25rem;
    }
    
    .newsletter-cta .newsletter-form {
        flex-direction: column;
    }
    
    .category-sidebar {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .category-hero {
        padding: 100px 0 40px;
    }
    
    .category-description {
        font-size: 1rem;
    }
    
    .filter-btn {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }
    
    .page-numbers {
        display: none;
    }
    
    .pagination {
        justify-content: space-between;
    }
}