:root {
  --bg: #f4f4f4; --card: #fff; --text: #333; --muted: #888;
  --border: #eee; --primary: #4F46E5; --accent: #EEF2FF;
}
[data-theme="dark"] {
  --bg: #0f172a; --card: #1e293b; --text: #e2e8f0; --muted: #94a3b8;
  --border: #334155; --primary: #818cf8; --accent: #312e81;
}

* { margin:0; padding:0; box-sizing:border-box; font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif; }
body { background:var(--bg); padding:20px; color:var(--text); transition:all 0.3s; }
.container { max-width:1100px; margin:0 auto; background:var(--card); padding:30px; border-radius:10px; box-shadow:0 2px 10px rgba(0,0,0,0.05); }

.main-header { display:flex; justify-content:space-between; align-items:center; margin-bottom:25px; border-bottom:2px solid var(--border); padding-bottom:20px; }
.main-header h1 { font-size:28px; }
.subtitle { color:var(--muted); font-size:14px; margin-top:4px; }
.header-actions { display:flex; gap:10px; align-items:center; }
.theme-btn { background:none; border:2px solid var(--border); padding:8px 14px; border-radius:6px; cursor:pointer; font-size:18px; }

.btn { background:var(--primary); color:white; padding:10px 20px; text-decoration:none; border-radius:6px; border:none; cursor:pointer; display:inline-block; font-size:14px; font-weight:500; }
.btn:hover { opacity:0.9; }

.search-form { display:flex; gap:10px; margin-bottom:20px; }
.search-input { flex:1; padding:12px 16px; border:2px solid var(--border); border-radius:8px; font-size:15px; background:var(--card); color:var(--text); }
.search-input:focus { border-color:var(--primary); outline:none; }

.categories { display:flex; gap:8px; flex-wrap:wrap; margin-bottom:25px; }
.cat-pill { padding:6px 14px; background:var(--border); color:var(--text); border-radius:20px; text-decoration:none; font-size:13px; }
.cat-pill.active { background:var(--primary); color:white; }

.posts-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(300px,1fr)); gap:20px; }
.post-card { background:var(--card); border:1px solid var(--border); border-radius:10px; overflow:hidden; transition:all 0.2s; }
.post-card:hover { transform:translateY(-3px); box-shadow:0 8px 20px rgba(0,0,0,0.1); }
.post-card.featured { border:2px solid var(--primary); }
.card-link { text-decoration:none; color:inherit; display:block; }
.thumbnail { width:100%; height:160px; background-size:cover; background-position:center; background-color:var(--border); }
.card-body { padding:16px; }
.card-body h2, .card-body h3 { font-size:18px; margin:8px 0; color:var(--text); line-height:1.3; }
.excerpt { color:var(--muted); font-size:14px; line-height:1.5; margin:8px 0; }

.category-badge { display:inline-block; background:var(--accent); color:var(--primary); padding:3px 10px; border-radius:12px; font-size:11px; font-weight:600; text-transform:uppercase; }

.meta { display:flex; gap:10px; margin-top:10px; flex-wrap:wrap; }
.meta small { color:var(--muted); font-size:12px; }

.tags { display:flex; gap:6px; flex-wrap:wrap; margin-top:10px; }
.tags-top { margin:10px 0 20px; }
.tag { background:var(--border); color:var(--text); padding:3px 10px; border-radius:12px; font-size:12px; text-decoration:none; }
.tag:hover { background:var(--primary); color:white; }

.post-detail { max-width:800px; margin:0 auto; }
.post-thumbnail { width:100%; height:300px; background-size:cover; background-position:center; border-radius:10px; margin-bottom:25px; }
.post-detail h1 { font-size:32px; line-height:1.3; margin:10px 0; }
.post-meta { display:flex; gap:15px; margin:10px 0 20px; }
.post-meta small { color:var(--muted); }

.video-wrap { position:relative; padding-top:56.25%; border-radius:10px; overflow:hidden; margin-bottom:25px; }
.video-wrap iframe { position:absolute; top:0; left:0; width:100%; height:100%; }
.post-video { width:100%; border-radius:10px; margin-bottom:25px; background:#000; }

.share-buttons { display:flex; gap:8px; flex-wrap:wrap; margin:20px 0; padding:15px; background:var(--accent); border-radius:8px; }
.share-btn { padding:8px 16px; border-radius:6px; text-decoration:none; font-size:13px; border:none; cursor:pointer; color:white; }
.share-btn.twitter { background:#000; }
.share-btn.telegram { background:#0088cc; }
.share-btn.reddit { background:#ff4500; }
.share-btn.copy { background:#6b7280; }

.back { color:var(--primary); text-decoration:none; display:inline-block; margin-bottom:20px; }
.empty { text-align:center; color:var(--muted); padding:60px 20px; grid-column:1/-1; }

.tags-cloud { margin-top:40px; padding-top:20px; border-top:1px solid var(--border); }
.tags-cloud h3 { margin-bottom:10px; }
.tags-cloud .tag { display:inline-block; margin:3px; }

.footer { text-align:center; margin-top:40px; padding-top:20px; border-top:1px solid var(--border); color:var(--muted); font-size:14px; }
.footer a { color:var(--primary); }

.related { margin-top:50px; padding-top:30px; border-top:2px solid var(--border); }
.featured-section { margin-bottom:30px; }
.featured-section h2 { margin-bottom:15px; }

.comments-section { margin-top:50px; padding-top:30px; border-top:2px solid var(--border); }
.comment-form { display:flex; flex-direction:column; gap:10px; margin:20px 0; }
.comment-form input, .comment-form textarea { padding:10px; border:1px solid var(--border); border-radius:6px; background:var(--card); color:var(--text); }
.comment { background:var(--bg); padding:15px; border-radius:8px; margin-bottom:10px; }
.comment-header { display:flex; justify-content:space-between; margin-bottom:8px; }
.comment-header small { color:var(--muted); }
.reply { margin-left:30px; margin-top:10px; background:var(--card); }

.markdown-body { margin:30px 0; line-height:1.7; font-size:16px; }
.markdown-body h1, .markdown-body h2, .markdown-body h3 { margin:24px 0 16px; }
.markdown-body h1 { font-size:2em; border-bottom:1px solid var(--border); padding-bottom:0.3em; }
.markdown-body h2 { font-size:1.5em; border-bottom:1px solid var(--border); padding-bottom:0.3em; }
.markdown-body p { margin:16px 0; }
.markdown-body ul, .markdown-body ol { margin:16px 0; padding-left:2em; }
.markdown-body a { color:var(--primary); }
.markdown-body img { max-width:100%; border-radius:5px; }
.markdown-body code { background:var(--border); padding:2px 6px; border-radius:3px; font-family:Monaco,monospace; font-size:0.9em; color:#e83e8c; }
.markdown-body pre { background:#0d1117; padding:16px; border-radius:8px; overflow-x:auto; margin:16px 0; position:relative; }
.markdown-body pre code { background:transparent; color:#c9d1d9; padding:0; }
.markdown-body blockquote { border-left:4px solid var(--border); padding:0 1em; color:var(--muted); margin:16px 0; }

.copy-btn { position:absolute; top:8px; right:8px; background:#30363d; color:#c9d1d9; border:1px solid #484f58; padding:4px 10px; border-radius:4px; cursor:pointer; font-size:12px; }

.badge { display:inline-block; padding:2px 8px; background:var(--border); border-radius:4px; font-size:11px; }
.status-private { background:#fef3c7; color:#92400e; }