/* ======================================================
   Jinproduction — Essay Archive Stylesheet v2
   Premium readability, E-E-A-T signals, AdSense-ready
   ====================================================== */

:root {
    --text-primary: #e8e6e0;
    --text-secondary: #b8b4ab;
    --text-muted: rgba(255, 255, 255, 0.45);
    --bg-dark: #09090f;
    --bg-section: #0c0c18;
    --bg-card: rgba(255, 255, 255, 0.03);
    --bg-card-hover: rgba(255, 255, 255, 0.05);
    --gold: #b8a07a;
    --gold-dim: rgba(184, 160, 122, 0.12);
    --gold-glow: rgba(184, 160, 122, 0.08);
    --border: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(184, 160, 122, 0.4);
    --font-main: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
    --font-heading: 'Outfit', sans-serif;
    --font-serif: 'Noto Serif KR', 'Georgia', serif;
    --radius-sm: 8px;
    --radius-md: 16px;
    --transition-fast: 0.25s;
}

/* ===================== BASE ===================== */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: var(--font-main);
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.95;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ===================== LAYOUT ===================== */
.article-container {
    max-width: 740px;
    margin: 0 auto;
    padding: 80px 24px 120px;
    animation: fadeInUp 0.8s cubic-bezier(0.25, 1, 0.5, 1) both;
}

/* ===================== NAV ===================== */
.archive-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 70px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
}

.archive-nav-left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.archive-nav-home {
    font-family: var(--font-heading);
    font-size: 0.8rem;
    font-weight: 300;
    letter-spacing: 2px;
    color: var(--text-muted);
    text-decoration: none;
    text-transform: uppercase;
    transition: color 0.3s ease;
}

.archive-nav-home:hover { color: var(--gold); }

.archive-nav-logo {
    width: 18px;
    height: 18px;
    object-fit: contain;
    opacity: 0.7;
}

/* ===================== ARTICLE HEADER ===================== */
.article-header {
    margin-bottom: 48px;
    text-align: center;
}

.article-category {
    font-family: var(--font-heading);
    color: var(--gold);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    display: inline-block;
    margin-bottom: 18px;
    position: relative;
    padding-bottom: 6px;
}

.article-category::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 1px;
    background-color: var(--gold);
}

.article-title {
    font-family: var(--font-serif);
    font-size: clamp(1.8rem, 5vw, 2.5rem);
    font-weight: 700;
    line-height: 1.35;
    color: var(--text-primary);
    margin-bottom: 20px;
    letter-spacing: -0.5px;
    word-break: keep-all;
}

.article-meta {
    font-family: var(--font-heading);
    color: var(--text-muted);
    font-size: 0.8rem;
    letter-spacing: 0.5px;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px 16px;
}

.article-meta-dot {
    opacity: 0.3;
}

.article-read-time {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

/* ===================== TABLE OF CONTENTS ===================== */
.article-toc {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-left: 2px solid var(--gold);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    padding: 28px 32px;
    margin: 0 0 52px;
}

.article-toc-title {
    font-family: var(--font-heading);
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--gold);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.article-toc ol {
    padding-left: 20px;
    list-style: decimal;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.article-toc li {
    font-family: var(--font-main);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.article-toc a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
    word-break: keep-all;
}

.article-toc a:hover {
    color: var(--gold);
}

/* ===================== ARTICLE BODY ===================== */
.article-body {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.article-body p {
    margin-bottom: 28px;
    word-break: keep-all;
}

.article-body h2 {
    font-family: var(--font-serif);
    color: var(--text-primary);
    margin: 64px 0 24px;
    font-size: 1.55rem;
    font-weight: 700;
    letter-spacing: -0.3px;
    position: relative;
    padding-bottom: 14px;
    scroll-margin-top: 20px;
}

.article-body h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 1px;
    background: linear-gradient(90deg, var(--gold), transparent);
}

.article-body h3 {
    font-family: var(--font-serif);
    color: var(--text-primary);
    margin: 40px 0 16px;
    font-size: 1.2rem;
    font-weight: 700;
    opacity: 0.9;
}

/* Key Highlight Box */
.article-body .key-insight {
    background: var(--gold-glow);
    border: 1px solid rgba(184, 160, 122, 0.2);
    border-radius: var(--radius-sm);
    padding: 24px 28px;
    margin: 40px 0;
    position: relative;
}

.article-body .key-insight::before {
    content: '✦ KEY INSIGHT';
    font-family: var(--font-heading);
    font-size: 0.65rem;
    font-weight: 700;
    color: var(--gold);
    letter-spacing: 3px;
    display: block;
    margin-bottom: 12px;
    opacity: 0.8;
}

.article-body .key-insight p {
    margin: 0;
    color: var(--text-primary);
    font-size: 1.05rem;
}

/* Premium Blockquote */
.article-body blockquote {
    border-left: 2px solid var(--gold);
    padding: 28px 36px;
    margin: 48px 0;
    background: var(--bg-card);
    font-style: italic;
    color: var(--text-primary);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    position: relative;
    box-shadow: inset 2px 0 0 rgba(184, 160, 122, 0.2);
}

.article-body blockquote::before {
    content: '"';
    font-family: var(--font-serif);
    font-size: 4rem;
    color: var(--gold);
    opacity: 0.15;
    position: absolute;
    top: -10px;
    left: 20px;
    line-height: 1;
}

.article-body blockquote cite {
    display: block;
    margin-top: 14px;
    font-style: normal;
    font-size: 0.82rem;
    color: var(--gold);
    font-family: var(--font-heading);
    letter-spacing: 0.5px;
}

/* Mid-article Ad Placeholder */
.ad-in-article {
    margin: 52px 0;
    text-align: center;
}

/* ===================== AUTHOR BIO ===================== */
.article-author-bio {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 28px 32px;
    margin: 64px 0 0;
}

.author-bio-avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    flex-shrink: 0;
    object-fit: contain;
    opacity: 0.85;
    padding: 4px;
    border: 1px solid var(--border);
}

.author-bio-text {
    flex: 1;
}

.author-bio-label {
    font-family: var(--font-heading);
    font-size: 0.65rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 4px;
    opacity: 0.8;
}

.author-bio-name {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.author-bio-desc {
    font-family: var(--font-main);
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===================== RELATED ARTICLES ===================== */
.article-related {
    margin-top: 56px;
}

.article-related-title {
    font-family: var(--font-heading);
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-muted);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 20px;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.related-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 20px 22px;
    text-decoration: none;
    color: inherit;
    transition: all var(--transition-fast) ease;
    display: block;
}

.related-card:hover {
    border-color: var(--gold);
    background: var(--bg-card-hover);
    transform: translateY(-2px);
}

.related-card-cat {
    font-family: var(--font-heading);
    font-size: 0.65rem;
    color: var(--gold);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 8px;
    opacity: 0.8;
}

.related-card-title {
    font-family: var(--font-serif);
    font-size: 0.95rem;
    line-height: 1.5;
    color: var(--text-secondary);
    word-break: keep-all;
    transition: color 0.2s ease;
}

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

/* ===================== AD BLOCK ===================== */
.ad-essay {
    margin: 60px 0;
}

.ad-divider {
    height: 1px;
    background: var(--border);
    margin: 20px 0;
}

.ad-label {
    font-family: var(--font-heading);
    font-size: 0.65rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-muted);
    text-align: center;
    margin-bottom: 8px;
}

.ad-container {
    min-height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ===================== ARTICLE FOOTER ===================== */
.article-footer {
    margin-top: 60px;
    padding-top: 40px;
    border-top: 1px solid var(--border);
    text-align: center;
}

.back-to-wisdom {
    display: inline-flex;
    align-items: center;
    font-family: var(--font-main);
    font-size: 0.9rem;
    color: var(--gold);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 10px 24px;
    border: 1px solid var(--gold-dim);
    border-radius: 30px;
    background: transparent;
}

.back-to-wisdom:hover {
    background: var(--gold-dim);
    transform: translateX(-4px);
}

/* ===================== RESPONSIVE ===================== */
@media (max-width: 768px) {
    .article-container { padding: 50px 20px 80px; }
    .archive-nav { margin-bottom: 50px; }
    .article-header { margin-bottom: 36px; }
    .article-body { font-size: 1rem; }
    .article-body h2 { margin: 48px 0 20px; font-size: 1.35rem; }
    .article-body blockquote { padding: 22px 24px; margin: 36px 0; }
    .article-author-bio { flex-direction: column; gap: 16px; }
    .related-grid { grid-template-columns: 1fr; }
    .article-toc { padding: 20px 22px; }
}

/* ===================== ARCHIVE INDEX PAGE ===================== */
.archive-index-container {
    max-width: 860px;
    margin: 0 auto;
    padding: 80px 24px 120px;
    animation: fadeInUp 0.8s cubic-bezier(0.25, 1, 0.5, 1) both;
}

.archive-index-header {
    margin-bottom: 64px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 40px;
}

.archive-index-eyebrow {
    font-family: var(--font-heading);
    font-size: 0.7rem;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 14px;
    opacity: 0.8;
}

.archive-index-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 2.8rem);
    font-weight: 200;
    letter-spacing: 4px;
    margin-bottom: 14px;
    text-transform: uppercase;
    color: var(--text-primary);
}

.archive-index-subtitle {
    font-family: var(--font-serif);
    font-size: 1rem;
    color: var(--text-secondary);
    font-style: italic;
    margin-bottom: 20px;
}

.archive-stats {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
    margin-top: 24px;
}

.archive-stat {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.archive-stat-value {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--gold);
}

.archive-stat-label {
    font-family: var(--font-main);
    font-size: 0.75rem;
    color: var(--text-muted);
    letter-spacing: 1px;
}

/* Category Filter Tabs */
.archive-categories {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 36px;
}

.archive-cat-btn {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--text-muted);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 30px;
    padding: 7px 18px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
}

.archive-cat-btn:hover,
.archive-cat-btn.active {
    color: var(--gold);
    border-color: var(--gold-dim);
    background: var(--gold-glow);
}

/* Essay Grid */
.archive-essay-grid {
    display: grid;
    gap: 20px;
}

.archive-essay-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast) ease;
}

.archive-essay-item:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
    background: var(--bg-card-hover);
}

.archive-essay-link {
    text-decoration: none;
    color: inherit;
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 24px 28px;
}

.archive-essay-num {
    font-family: var(--font-heading);
    font-size: 0.8rem;
    color: var(--gold);
    opacity: 0.45;
    flex-shrink: 0;
    padding-top: 4px;
    min-width: 28px;
}

.archive-essay-body { flex: 1; }

.archive-essay-cat {
    font-family: var(--font-heading);
    font-size: 0.65rem;
    color: var(--gold);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 6px;
    opacity: 0.8;
}

.archive-essay-title {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    font-weight: 700;
    line-height: 1.5;
    margin-bottom: 8px;
    color: var(--text-primary);
    transition: color 0.3s ease;
    word-break: keep-all;
}

.archive-essay-item:hover .archive-essay-title {
    color: var(--gold);
}

.archive-essay-excerpt {
    font-family: var(--font-main);
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 12px;
    word-break: keep-all;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.archive-essay-meta {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    color: var(--text-muted);
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.archive-essay-meta-dot {
    opacity: 0.3;
    font-size: 0.6rem;
}

@media (max-width: 640px) {
    .archive-index-container { padding: 50px 18px 80px; }
    .archive-essay-link { flex-direction: column; gap: 8px; padding: 20px; }
    .archive-essay-num { display: none; }
}