/* Category & Archive CSS */
.cat-hero { background: linear-gradient(135deg, rgba(27,94,56,0.05) 0%, rgba(27,94,56,0) 100%); border-radius: 24px; padding: 48px; display: grid; grid-template-columns: 1fr auto; gap: 48px; align-items: center; margin-bottom: 40px; }
.cat-hero h1 { font-size: clamp(2rem, 4vw, 3rem); font-weight: 800; margin: 16px 0; color: var(--color-primary-dark); }
.cat-hero p { font-size: 16px; color: var(--color-text-secondary); max-width: 500px; margin-bottom: 24px; line-height: 1.6; }
.cat-count-badge { display: inline-flex; align-items: center; gap: 8px; background: white; padding: 8px 16px; border-radius: var(--radius-full); font-size: 14px; font-weight: 600; box-shadow: var(--shadow-sm); }
.cat-hero__visual { display: flex; align-items: center; justify-content: center; }

/* Filter Bar */
.filter-bar { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding-bottom: 16px; border-bottom: 1px solid var(--color-border); margin-bottom: 40px; overflow-x: auto; scrollbar-width: none; }
.filter-bar::-webkit-scrollbar { display: none; }
.filter-tabs { display: flex; gap: 12px; }
.filter-tab { padding: 8px 16px; background: white; border: 1px solid var(--color-border); border-radius: var(--radius-full); font-size: 14px; font-weight: 500; white-space: nowrap; transition: all var(--transition-fast); }
.filter-tab:hover { border-color: var(--color-primary); color: var(--color-primary); }
.filter-tab.active { background: var(--color-primary-dark); color: white; border-color: var(--color-primary-dark); padding-left: 24px; position: relative; }
.filter-tab.active::before { content: ''; position: absolute; left: 12px; top: 50%; transform: translateY(-50%); width: 6px; height: 6px; background: var(--color-accent); border-radius: 50%; }
.filter-sort { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--color-text-secondary); white-space: nowrap; }
.filter-sort select { padding: 6px 32px 6px 12px; border: 1px solid var(--color-border); border-radius: var(--radius-md); background: white url('data:image/svg+xml;utf8,<svg width="10" height="6" viewBox="0 0 10 6" fill="none" xmlns="http://www.w3.org/2000/svg"><path d="M1 1L5 5L9 1" stroke="%23555555" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/></svg>') no-repeat right 12px center; appearance: none; font-size: 14px; font-weight: 500; }

/* Archive Layout */
.archive-layout { display: grid; grid-template-columns: 2fr 1fr; gap: 40px; }

/* Featured Post */
.featured-post { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; background: white; border-radius: 20px; overflow: hidden; margin-bottom: 40px; box-shadow: var(--shadow-sm); }
.featured-post__img { position: relative; display: block; aspect-ratio: 4/3; }
.featured-post__img img { width: 100%; height: 100%; object-fit: cover; }
.featured-post__meta-overlay { position: absolute; inset: 16px; display: flex; justify-content: space-between; align-items: flex-start; pointer-events: none; }
.featured-post__meta-overlay > * { pointer-events: auto; }
.featured-post__body { padding: 32px 32px 32px 0; display: flex; flex-direction: column; justify-content: center; }
.featured-post h2 { font-size: 24px; margin-bottom: 12px; line-height: 1.3; }
.featured-post p { font-size: 15px; color: var(--color-text-secondary); margin-bottom: 24px; line-height: 1.6; }

/* Post Grid */
.archive-grid { margin-bottom: 48px; }

/* Sidebar */
.archive-sidebar { position: sticky; top: calc(var(--header-height) + 24px); }
.sidebar-section { background: white; border-radius: 16px; padding: 24px; margin-bottom: 24px; box-shadow: var(--shadow-sm); }
.sidebar-title { font-size: 16px; font-weight: 700; margin-bottom: 20px; padding-bottom: 12px; border-bottom: 1px solid var(--color-border); }

/* Popular List */
.popular-list { display: flex; flex-direction: column; gap: 16px; }
.popular-item { display: flex; gap: 12px; align-items: flex-start; }
.popular-num { width: 24px; height: 24px; background: var(--color-bg-light); color: var(--color-text-muted); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700; flex-shrink: 0; }
.popular-item:nth-child(1) .popular-num, .popular-item:nth-child(2) .popular-num, .popular-item:nth-child(3) .popular-num { background: var(--color-primary-dark); color: white; }
.popular-thumb { border-radius: 8px; object-fit: cover; flex-shrink: 0; }
.popular-info h4 { font-size: 14px; font-weight: 600; margin-bottom: 4px; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* Series List */
.series-list { display: flex; flex-direction: column; gap: 12px; }

@media (max-width: 1024px) {
    .archive-layout { grid-template-columns: 1fr; }
    .archive-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
    .archive-sidebar .ad-slot { grid-column: 1 / -1; }
}

@media (max-width: 768px) {
    .cat-hero { grid-template-columns: 1fr; text-align: center; padding: 32px 24px; }
    .cat-hero__visual { display: none; }
    .featured-post { grid-template-columns: 1fr; }
    .featured-post__body { padding: 24px; }
    .archive-sidebar { grid-template-columns: 1fr; }
}