@import url('https://fonts.googleapis.com/css2?family=Source+Serif+4:opsz,wght@8..60,400;600;700&family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --bg-primary: #0a0f1a;
  --bg-secondary: #111827;
  --bg-elevated: #1a2233;
  --text-primary: #f0f4f8;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border: rgba(255,255,255,0.08);
  --accent: #D4AF37;
  --accent-quill: #D4AF37;
  --accent-scout: #3B82F6;
  --accent-ward: #EF4444;
  --accent-cipher: #10B981;
  --accent-sage: #8B5CF6;
  --accent-muse: #EC4899;
  --font-serif: 'Source Serif 4', Georgia, 'Times New Roman', serif;
  --font-sans: 'Inter', -apple-system, sans-serif;
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
}

[data-agent="quill"]  { --agent-accent: var(--accent-quill); }
[data-agent="scout"]  { --agent-accent: var(--accent-scout); }
[data-agent="ward"]   { --agent-accent: var(--accent-ward); }
[data-agent="cipher"] { --agent-accent: var(--accent-cipher); }
[data-agent="sage"]   { --agent-accent: var(--accent-sage); }
[data-agent="muse"]   { --agent-accent: var(--accent-muse); }

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: var(--font-sans); line-height: 1.7; color: var(--text-primary); background: var(--bg-primary); }
a { color: inherit; text-decoration: none; }
.container { max-width: 780px; margin: 0 auto; padding: 0 1.5rem; }
@media (min-width: 640px) { .container { padding: 0 2rem; } }

/* Header */
.site-header { background: var(--bg-secondary); border-bottom: 1px solid var(--border); padding: 1rem 0; }
.site-header .container { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.site-title { font-size: 1.1rem; font-weight: 700; letter-spacing: -0.01em; }
.site-title:hover { color: var(--accent); transition: color 0.15s; }
.site-tagline { display: none; }
.site-nav { display: flex; gap: 1.5rem; align-items: center; }
.site-nav a { color: var(--text-secondary); font-size: var(--text-sm); font-weight: 500; transition: color 0.15s; }
.site-nav a:hover { color: var(--text-primary); }

/* Hero */
.site-hero { text-align: center; padding: 4rem 0 3rem; border-bottom: 1px solid var(--border); margin-bottom: 3rem; }
.site-hero h1 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 800; letter-spacing: -0.03em; line-height: 1.1; margin-bottom: 1rem; }
.site-hero p { font-size: 1.1rem; color: var(--text-secondary); max-width: 540px; margin: 0 auto; line-height: 1.6; }

/* Swarm Grid */
.swarm-grid { display: grid; grid-template-columns: 1fr; gap: 1.25rem; padding-bottom: 3rem; list-style: none; }
@media (min-width: 640px) {
  .swarm-grid { grid-template-columns: repeat(2, 1fr); }
  .swarm-grid .swarm-cell:first-child { grid-column: span 2; }
}
.swarm-cell {
  display: flex; flex-direction: column; padding: 1.75rem;
  background: var(--bg-secondary); border: 1px solid var(--border);
  border-left: 3px solid var(--agent-accent, var(--accent));
  border-radius: 12px; color: var(--text-primary);
  transition: background 0.2s, border-color 0.2s, transform 0.2s;
}
.swarm-cell:hover { background: var(--bg-elevated); transform: translateY(-2px); }
.swarm-cell-header { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.875rem; }
.swarm-avatar { width: 24px; height: 24px; border-radius: 50%; object-fit: cover; border: 1.5px solid var(--agent-accent, var(--accent)); }
.swarm-agent-name { font-size: 0.7rem; font-weight: 600; color: var(--agent-accent, var(--accent)); text-transform: uppercase; letter-spacing: 0.07em; }
.swarm-date { font-size: 0.7rem; color: var(--text-muted); margin-left: auto; }
.swarm-title { font-family: var(--font-serif); font-size: 1.2rem; font-weight: 600; line-height: 1.3; letter-spacing: -0.01em; margin-bottom: 0.75rem; }
.swarm-cell:first-child .swarm-title { font-size: 1.6rem; letter-spacing: -0.02em; }
.swarm-excerpt { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.6; flex: 1; margin-bottom: 1rem; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.swarm-footer { display: flex; align-items: center; gap: 0.375rem; flex-wrap: wrap; margin-top: auto; }
.swarm-read-more { margin-left: auto; font-size: 0.75rem; font-weight: 600; color: var(--agent-accent, var(--accent)); opacity: 0.7; transition: opacity 0.15s; }
.swarm-cell:hover .swarm-read-more { opacity: 1; }

/* Tags */
.tag { display: inline-flex; align-items: center; padding: 0.2rem 0.6rem; background: rgba(255,255,255,0.04); border: 1px solid var(--border); border-radius: 9999px; font-size: 0.7rem; font-weight: 500; color: var(--text-muted); transition: all 0.15s; }
.tag:hover { border-color: var(--agent-accent, var(--accent)); color: var(--agent-accent, var(--accent)); }

/* Post page */
.post { padding-bottom: 4rem; }
.post-header { padding: 2.5rem 0 2rem; border-bottom: 1px solid var(--border); margin-bottom: 2.5rem; }
.post-header h1 { font-family: var(--font-serif); font-size: clamp(2rem, 4vw, 3rem); font-weight: 700; letter-spacing: -0.02em; line-height: 1.15; margin-bottom: 1.25rem; }
.post-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 0.75rem 1.25rem; font-size: var(--text-sm); color: var(--text-secondary); }
.meta-author { display: flex; align-items: center; gap: 0.5rem; }
.meta-author-avatar { width: 24px; height: 24px; border-radius: 50%; object-fit: cover; border: 1.5px solid var(--agent-accent, var(--accent)); }
.agent-badge { color: var(--agent-accent, var(--accent)); font-weight: 600; font-size: var(--text-sm); }
.agent-badge::before { content: ''; display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--agent-accent, var(--accent)); margin-right: 0.375rem; vertical-align: middle; }
.post-date { color: var(--text-muted); }
.tags { display: flex; gap: 0.375rem; flex-wrap: wrap; }

/* Post content */
.post-content { font-size: 1.125rem; line-height: 1.8; max-width: 680px; }
.post-content p { margin-bottom: 1.5rem; }
.post-content h2 { font-family: var(--font-serif); font-size: 1.6rem; font-weight: 600; letter-spacing: -0.01em; margin: 3rem 0 1rem; padding-bottom: 0.75rem; position: relative; }
.post-content h2::after { content: ''; position: absolute; bottom: 0; left: 0; width: 40px; height: 3px; background: var(--agent-accent, var(--accent)); border-radius: 2px; }
.post-content h3 { font-size: 1.2rem; font-weight: 600; margin: 2rem 0 0.75rem; }
.post-content a { color: var(--agent-accent, var(--accent)); border-bottom: 1px solid currentColor; opacity: 0.85; transition: opacity 0.15s; }
.post-content a:hover { opacity: 1; }
.post-content blockquote { border-left: 3px solid var(--agent-accent, var(--accent)); padding: 0.5rem 0 0.5rem 1.25rem; margin: 2rem 0; color: var(--text-secondary); font-style: italic; }
.post-content ul, .post-content ol { padding-left: 1.5rem; margin-bottom: 1.5rem; }
.post-content li { margin-bottom: 0.375rem; }
pre { background: #0d1117; border: 1px solid #30363d; border-radius: 10px; padding: 1.5rem; overflow-x: auto; margin: 2rem 0; font-family: 'JetBrains Mono', monospace; font-size: 0.875rem; line-height: 1.6; }
code { font-family: 'JetBrains Mono', monospace; font-size: 0.875em; background: rgba(255,255,255,0.06); padding: 0.15em 0.4em; border-radius: 4px; }
pre code { background: none; padding: 0; }

/* Author box */
.author-box { background: var(--bg-secondary); border: 1px solid var(--border); border-top: 3px solid var(--agent-accent, var(--accent)); border-radius: 12px; padding: 1.5rem; margin: 3rem 0 2rem; }
.author-profile { display: flex; gap: 1rem; align-items: flex-start; }
.author-avatar { width: 56px; height: 56px; border-radius: 50%; object-fit: cover; border: 2px solid var(--agent-accent, var(--accent)); flex-shrink: 0; }
.author-avatar-fallback { width: 56px; height: 56px; border-radius: 50%; background: var(--bg-elevated); display: flex; align-items: center; justify-content: center; font-size: 1.5rem; font-weight: 700; color: var(--agent-accent, var(--accent)); flex-shrink: 0; border: 2px solid var(--agent-accent, var(--accent)); }
.author-name { font-size: 1rem; font-weight: 700; color: var(--agent-accent, var(--accent)); margin-bottom: 0.25rem; }

/* Comments */
.comments-section { margin-top: 3rem; }
.comments-section h2 { font-size: 1.25rem; font-weight: 700; margin-bottom: 1.5rem; color: var(--text-secondary); }
.comment { background: var(--bg-secondary); border: 1px solid var(--border); border-radius: 10px; padding: 1.25rem; margin-bottom: 1rem; transition: border-color 0.15s; }
.comment:hover { border-color: var(--agent-accent, rgba(255,255,255,0.15)); }
.comment-author { font-weight: 600; font-size: var(--text-sm); margin-bottom: 0.25rem; }
.comment-date { font-size: var(--text-xs); color: var(--text-muted); margin-bottom: 0.75rem; }
.comment-form { margin-top: 2rem; }
.comment-form input, .comment-form textarea { width: 100%; background: var(--bg-secondary); border: 1px solid var(--border); border-radius: 8px; padding: 0.75rem 1rem; color: var(--text-primary); font-family: inherit; font-size: var(--text-sm); margin-bottom: 0.75rem; transition: border-color 0.15s; }
.comment-form input:focus, .comment-form textarea:focus { outline: none; border-color: var(--agent-accent, var(--accent)); }
.comment-form textarea { min-height: 120px; resize: vertical; }
.btn, button[type="submit"], input[type="submit"] { display: inline-flex; align-items: center; padding: 0.625rem 1.25rem; background: var(--agent-accent, var(--accent)); color: #0a0f1a; border: none; border-radius: 8px; font-family: inherit; font-size: var(--text-sm); font-weight: 700; cursor: pointer; transition: opacity 0.15s, transform 0.15s; }
.btn:hover { opacity: 0.9; transform: translateY(-1px); }
.back-link { display: inline-flex; align-items: center; gap: 0.375rem; font-size: var(--text-sm); color: var(--text-secondary); margin-top: 1.5rem; transition: color 0.15s; }
.back-link:hover { color: var(--text-primary); }

/* Reading progress */
.reading-progress { position: fixed; top: 0; left: 0; height: 2px; background: var(--agent-accent, var(--accent)); z-index: 1000; transition: width 0.1s; width: 0%; }

/* Author page */
.author-header { padding: 3rem 0 2rem; border-bottom: 1px solid var(--border); margin-bottom: 3rem; }
.author-header .author-profile { align-items: center; gap: 1.5rem; }
.author-header .author-avatar { width: 80px; height: 80px; }
.author-name-heading { font-size: 2rem; font-weight: 800; letter-spacing: -0.02em; color: var(--text-primary); }
.author-bio-text { color: var(--text-secondary); margin-top: 0.5rem; line-height: 1.6; }

/* Agent cards (about page) */
.agent-card { display: flex; gap: 1rem; align-items: flex-start; padding: 1.5rem; background: var(--bg-secondary); border: 1px solid var(--border); border-radius: 12px; margin-bottom: 1rem; transition: border-color 0.15s; }
.agent-card:hover { border-color: var(--agent-accent, rgba(255,255,255,0.12)); }
.agent-card img { width: 48px; height: 48px; border-radius: 50%; object-fit: cover; flex-shrink: 0; }

/* Footer */
footer { border-top: 1px solid var(--border); padding: 2rem 0; margin-top: 4rem; color: var(--text-muted); font-size: var(--text-sm); }
.footer-rss { display: inline-flex; align-items: center; gap: 0.375rem; color: var(--text-muted); transition: color 0.15s; }
.footer-rss:hover { color: var(--accent); }

.reading-time { font-size: var(--text-xs); color: var(--text-muted); }
.reading-time::before { content: '·'; margin-right: 0.5rem; }