/* ===========================================
   Single Post — Luxury Catalog Lite
=========================================== */

/* ---- Page Background ---- */
.single-post-page {
    background-color: #f7f6f3;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
    padding-bottom: var(--spacing-4xl);
}

/* ---- Two-Column Layout ---- */
.single-post-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: var(--spacing-2xl) var(--container-padding) 0;
    display: grid;
    grid-template-columns: 1fr 260px;
    gap: 32px;
    align-items: start;
}

/* ---- Article Card ---- */
.single-post-article {
    background: #fff;
    border-radius: 3px;
    padding: 36px 40px;
    box-shadow:
        0 1px 3px rgba(0,0,0,0.04),
        0 4px 16px rgba(0,0,0,0.02);
}

/* ---- Post Meta ---- */
.single-post-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(0,0,0,0.06);
}
.single-post-meta__date {
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 400;
    color: var(--color-text-pale);
    letter-spacing: 0.08em;
}
.single-post-meta__categories a {
    display: inline-block;
    font-size: 11.5px;
    font-weight: 500;
    color: var(--color-primary-dark);
    background: linear-gradient(135deg, #f0fbfc 0%, #e4f4f6 100%);
    padding: 3px 12px;
    border-radius: 20px;
    letter-spacing: 0.04em;
}

/* ---- Post Content (the_content) ---- */
.single-post-content {
    font-size: 15px;
    line-height: 1.95;
    color: var(--color-text-light);
}
.single-post-content p {
    margin-bottom: 1.6em;
}
.single-post-content h2 {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-text);
    letter-spacing: 0.06em;
    margin-top: 2.4em;
    margin-bottom: 0.8em;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--color-primary-light);
    /* Reset base.css h2 defaults */
    text-align: left;
    display: block;
    position: static;
    left: auto;
    transform: none;
}
.single-post-content h2::after {
    display: none;
}
.single-post-content h3 {
    font-size: 17px;
    font-weight: 600;
    color: var(--color-text);
    letter-spacing: 0.04em;
    margin-top: 2em;
    margin-bottom: 0.6em;
    padding-left: 12px;
    border-left: 3px solid var(--color-primary);
}
.single-post-content h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text);
    margin-top: 1.6em;
    margin-bottom: 0.5em;
}
.single-post-content img {
    border-radius: 3px;
    margin: 1.2em 0;
}
.single-post-content ul,
.single-post-content ol {
    margin: 1em 0 1.6em;
    padding-left: 1.5em;
}
.single-post-content ul {
    list-style: disc;
}
.single-post-content ol {
    list-style: decimal;
}
.single-post-content li {
    margin-bottom: 0.4em;
    line-height: 1.8;
}
.single-post-content blockquote {
    margin: 1.6em 0;
    padding: 20px 24px;
    background: rgba(121, 194, 204, 0.06);
    border-left: 3px solid var(--color-primary-light);
    border-radius: 0 3px 3px 0;
    font-size: 14px;
    color: var(--color-text-muted);
}
.single-post-content a {
    color: var(--color-primary-dark);
    text-decoration: underline;
    text-underline-offset: 3px;
}
.single-post-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.4em 0;
    font-size: 14px;
}
.single-post-content th,
.single-post-content td {
    padding: 10px 14px;
    border: 1px solid rgba(0,0,0,0.08);
    text-align: left;
}
.single-post-content th {
    background: #f9fbfb;
    font-weight: 600;
    font-size: 13px;
}

/* ---- Post Navigation ---- */
.single-post-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: var(--spacing-2xl);
}
.single-post-nav__link {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 20px 24px;
    background: #fff;
    border-radius: 3px;
    border: 1px solid rgba(0,0,0,0.06);
    box-shadow:
        0 1px 3px rgba(0,0,0,0.03),
        0 4px 12px rgba(0,0,0,0.02);
    transition: border-color 0.3s ease;
}
.single-post-nav__link:hover {
    border-color: var(--color-primary-light);
    opacity: 1;
}
.single-post-nav__link--next {
    text-align: right;
}
.single-post-nav__label {
    font-family: var(--font-display);
    font-size: 11px;
    letter-spacing: 0.2em;
    color: var(--color-text-pale);
    text-transform: uppercase;
}
.single-post-nav__title {
    font-size: 13.5px;
    font-weight: 500;
    color: var(--color-text);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ---- Sidebar ---- */
.single-post-sidebar {
    display: flex;
    flex-direction: column;
    gap: 20px;
    position: sticky;
    top: 100px;
}

/* Sidebar box common */
.sidebar-toc,
.sidebar-categories,
.sidebar-related {
    background: #fff;
    border-radius: 3px;
    box-shadow:
        0 1px 3px rgba(0,0,0,0.04),
        0 4px 16px rgba(0,0,0,0.02);
    overflow: hidden;
}
.sidebar-box__header {
    padding: 16px 20px 12px;
    border-bottom: 1px solid rgba(0,0,0,0.06);
}
.sidebar-box__en {
    display: block;
    font-family: var(--font-display);
    font-size: 10px;
    font-weight: 400;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--color-primary-dark);
    opacity: 0.5;
    margin-bottom: 2px;
}
.sidebar-box__title {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
    letter-spacing: 0.06em;
    margin: 0;
    border: none;
    padding: 0;
    background: none;
}

/* ---- TOC ---- */
.toc-list {
    padding: 12px 20px 16px;
    margin: 0;
    counter-reset: toc;
    list-style: none;
}
.toc-item {
    counter-increment: toc;
}
.toc-item a {
    display: block;
    padding: 6px 0;
    font-size: 13px;
    color: var(--color-text-light);
    line-height: 1.5;
    border-bottom: 1px solid rgba(0,0,0,0.03);
    transition: color 0.2s ease;
}
.toc-item a:hover {
    color: var(--color-primary-dark);
    opacity: 1;
}
.toc-item--h3 a {
    padding-left: 16px;
    font-size: 12.5px;
    color: var(--color-text-muted);
}

/* ---- Category List ---- */
.sidebar-category-list {
    padding: 8px 0;
}
.sidebar-category-list li a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 20px;
    font-size: 13.5px;
    color: var(--color-text);
    transition: background 0.2s ease;
}
.sidebar-category-list li a:hover {
    background: rgba(121, 194, 204, 0.04);
    opacity: 1;
}
.sidebar-category-list li + li {
    border-top: 1px solid rgba(0,0,0,0.04);
}
.sidebar-category-count {
    font-family: var(--font-display);
    font-size: 13px;
    color: var(--color-text-pale);
    opacity: 0.6;
}

/* ---- Related Posts ---- */
.sidebar-related-list {
    padding: 8px 0;
}
.sidebar-related-list li a {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 10px 20px;
    transition: background 0.2s ease;
}
.sidebar-related-list li a:hover {
    background: rgba(121, 194, 204, 0.04);
    opacity: 1;
}
.sidebar-related-list li + li {
    border-top: 1px solid rgba(0,0,0,0.04);
}
.sidebar-related-list time {
    font-family: var(--font-display);
    font-size: 12px;
    color: var(--color-text-pale);
    letter-spacing: 0.06em;
}
.sidebar-related-list span {
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ---- Mobile ---- */
@media (max-width: 767px) {
    .single-post-container {
        grid-template-columns: 1fr;
        gap: 24px;
        padding: var(--spacing-xl) 12px 0;
    }
    .single-post-article {
        padding: 24px 20px;
    }
    .single-post-content h2 {
        font-size: 18px;
    }
    .single-post-content h3 {
        font-size: 16px;
    }
    .single-post-sidebar {
        position: static;
    }
    .single-post-nav {
        grid-template-columns: 1fr;
    }
}