/* ==========================================================================
   Super One - レスポンシブスタイル
   ========================================================================== */

/* --- Tablet (768px以下) --- */
@media (max-width: 768px) {
    /* Prevent horizontal overflow */
    html, body {
        overflow-x: hidden;
    }

    /* Layout */
    .content-wrapper {
        flex-direction: column;
    }

    .single-article,
    .page-article {
        max-width: 100%;
        overflow: hidden;
    }

    .sidebar {
        width: 100%;
        position: static;
    }

    .sidebar-toc {
        display: none !important;
    }

    /* Header */
    .menu-toggle {
        display: flex;
        order: -1;
    }

    .global-nav {
        display: none;
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--color-white);
        z-index: 999;
        overflow-y: auto;
        padding: 20px;
    }

    .global-nav.is-open {
        display: block;
    }

    .nav-menu {
        flex-direction: column;
        gap: 0;
    }

    .nav-menu .menu-item a {
        padding: 14px 16px;
        font-size: 16px;
        border-bottom: 1px solid var(--color-border);
        border-radius: 0;
    }

    body.menu-open {
        overflow: hidden;
    }

    /* Grid */
    .posts-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .related-posts-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    /* Author Box */
    .author-box-body {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 12px;
    }

    .author-box-social {
        justify-content: center;
    }

    /* FAQ */
    .faq-question {
        font-size: 15px !important;
        padding: 14px 16px !important;
    }

    .faq-answer {
        padding: 14px 16px;
    }

    /* Footer */
    .footer-menu {
        gap: 20px;
    }

    /* Article */
    .article-content {
        padding: 24px;
        overflow-wrap: break-word;
        word-break: break-word;
    }

    .article-title {
        font-size: 22px;
        overflow-wrap: break-word;
        word-break: break-word;
    }

    .article-content h2 {
        font-size: 20px;
        margin: 36px 0 16px;
    }

    .article-content h3 {
        font-size: 18px;
        margin: 28px 0 12px;
    }

    /* Post Navigation */
    .post-navigation {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .nav-next {
        text-align: left;
    }

    /* Slider */
    .slider-title {
        font-size: 18px;
    }

    .slider-overlay {
        padding: 20px;
    }

    .slider-prev,
    .slider-next {
        padding: 8px 12px;
        font-size: 16px;
    }

    /* Scroll to Top */
    .scroll-top {
        bottom: 20px;
        right: 16px;
        width: 44px;
        height: 44px;
        box-shadow: none;
    }

    .scroll-top:hover {
        transform: none;
        box-shadow: none;
    }
}

/* --- Mobile (480px以下) --- */
@media (max-width: 480px) {
    html {
        font-size: 15px;
    }

    .content-area {
        padding: 16px 12px;
    }

    .header-inner {
        padding: 0 12px;
        height: 56px;
    }

    .site-title {
        font-size: 17px;
    }

    /* Grid */
    .posts-grid {
        grid-template-columns: 1fr;
    }

    .related-posts-grid {
        grid-template-columns: 1fr;
    }

    /* Article */
    .article-content {
        padding: 20px 16px;
        border-radius: 0;
        margin-left: -12px;
        margin-right: -12px;
        max-width: calc(100% + 24px);
    }

    .article-title {
        font-size: 20px;
    }

    .article-meta {
        gap: 10px;
        font-size: 12px;
    }

    .article-content p {
        line-height: 1.8;
    }

    .article-content h2 {
        font-size: 18px;
        padding: 10px 0 10px 12px;
    }

    .article-content h3 {
        font-size: 16px;
    }

    .article-content h4 {
        font-size: 15px;
    }

    /* TOC */
    .toc-body {
        padding: 12px 14px;
    }

    .toc-link {
        font-size: 13px;
    }

    /* Boxes */
    .article-points-box,
    .checkpoint-box {
        margin-left: 0;
        margin-right: 0;
    }

    .article-points-header,
    .checkpoint-header {
        font-size: 14px;
        padding: 12px 16px;
    }

    .article-points-box ul,
    .checkpoint-box ul {
        padding: 10px 16px 14px 36px;
    }

    /* Table */
    .table-responsive {
        margin-left: 0;
        margin-right: 0;
    }

    .article-content table {
        min-width: 100%;
    }

    .article-content table th,
    .article-content table td {
        padding: 10px 12px;
        font-size: 13px;
        white-space: normal;
    }

    /* Share */
    .share-buttons {
        padding: 20px 16px;
    }

    .share-btn {
        width: 42px;
        height: 42px;
    }

    /* Breadcrumb */
    .breadcrumb {
        font-size: 11px;
    }

    .breadcrumb-current {
        max-width: 180px;
    }

    /* Pagination */
    .pagination .page-numbers {
        min-width: 36px;
        height: 36px;
        font-size: 13px;
    }

    /* Slider */
    .slider-title {
        font-size: 16px;
    }

    .slider-overlay {
        padding: 16px;
    }

    .slider-prev,
    .slider-next {
        display: none;
    }

    /* 404 */
    .error-title {
        font-size: 60px;
    }

    .error-message {
        font-size: 18px;
    }

    /* Search overlay */
    .search-overlay-inner {
        padding: 44px 20px 20px;
    }

    .search-overlay .search-submit {
        padding: 12px 16px;
    }
}