:root {
  --bg: #0d1117;
  --bg-card: #161b22;
  --bg-hover: #1c2129;
  --text: #e6edf3;
  --text-muted: #8b949e;
  --accent: #f97316;
  --border: #30363d;
  --open: #6b7280;
  --contested: #f59e0b;
  --holding: #22c55e;
  --settled: #3b82f6;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code { background: var(--bg-card); padding: 2px 6px; border-radius: 4px; font-size: 0.9em; }
pre { background: var(--bg-card); padding: 12px; border-radius: 6px; overflow-x: auto; white-space: pre-wrap; }

.container { max-width: 900px; margin: 0 auto; padding: 0 16px; width: 100%; }

/* Nav */
.nav { background: var(--bg-card); border-bottom: 1px solid var(--border); padding: 12px 16px; }
.nav-inner { max-width: 900px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; }
.logo { font-size: 1.3em; font-weight: 700; color: var(--accent); }
.logo:hover { text-decoration: none; }
.nav-links { display: flex; gap: 16px; }
.nav-links a { color: var(--text-muted); }
.nav-links a:hover { color: var(--text); text-decoration: none; }

/* Main */
main { flex: 1; padding: 24px 16px; max-width: 900px; margin: 0 auto; width: 100%; }
h1 { font-size: 1.8em; margin-bottom: 8px; }
h2 { font-size: 1.3em; margin: 24px 0 12px; }
.subtitle { color: var(--text-muted); margin-bottom: 24px; }
.muted { color: var(--text-muted); }
.breadcrumb { margin-bottom: 16px; }
.breadcrumb a { color: var(--text-muted); }

/* Badges */
.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 0.8em;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.badge-open { background: var(--open); color: #fff; }
.badge-contested { background: var(--contested); color: #000; }
.badge-holding { background: var(--holding); color: #000; }
.badge-settled { background: var(--settled); color: #fff; }
.badge-lg { font-size: 0.9em; padding: 4px 14px; }
.badge-active { outline: 2px solid var(--accent); }
.badge-author { background: var(--accent); color: #000; font-size: 0.75em; }

/* Tags */
.tag {
  display: inline-block;
  padding: 2px 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 0.8em;
  color: var(--text-muted);
  margin-right: 4px;
}

/* Filters */
.filters { margin-bottom: 24px; display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.filter-label { color: var(--text-muted); font-size: 0.9em; }
.filters .badge { cursor: pointer; }
.filters a.badge { color: #fff; }
.filters a.badge:hover { text-decoration: none; opacity: 0.8; }

/* Cards */
.hole-list, .shell-list { display: flex; flex-direction: column; gap: 12px; }
.hole-card, .shell-card {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  transition: background 0.15s;
  color: var(--text);
}
.hole-card:hover, .shell-card:hover { background: var(--bg-hover); text-decoration: none; }
.hole-header { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.hole-title { font-weight: 600; font-size: 1.1em; }
.hole-tags { margin-bottom: 8px; }
.hole-stats { display: flex; gap: 16px; color: var(--text-muted); font-size: 0.9em; }
.hole-description { margin: 12px 0; color: var(--text-muted); }

/* Hole detail */
.hole-detail { margin-bottom: 24px; }
.hole-detail-header { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }

/* Shell detail */
.shell-detail { margin-bottom: 24px; }
.shell-claim, .shell-claim-full { font-size: 1.05em; margin-bottom: 8px; }
.shell-claim-full { font-size: 1.15em; line-height: 1.5; margin-bottom: 16px; }
.shell-meta { margin-bottom: 8px; }
.shell-info { display: flex; flex-direction: column; gap: 4px; margin-bottom: 12px; color: var(--text-muted); }
.hash { font-size: 0.85em; word-break: break-all; }
.artifact-download { margin-top: 8px; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.btn { display: inline-block; padding: 6px 16px; border-radius: 6px; font-weight: 600; font-size: 0.9em; border: none; cursor: pointer; text-decoration: none; }
.btn-download { background: var(--accent); color: #000; }
.btn-download:hover { opacity: 0.85; text-decoration: none; }
.btn-primary { background: var(--accent); color: #000; }
.btn-primary:hover { opacity: 0.85; }

/* Evidence */
.evidence-list { display: flex; flex-direction: column; gap: 12px; }
.evidence-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
}
.dig-card { border-left: 3px solid var(--holding); }
.bury-card { border-left: 3px solid var(--contested); }
.evidence-env { margin-bottom: 4px; }
.evidence-time { color: var(--text-muted); font-size: 0.85em; margin-top: 8px; }
.bury-reason { margin-bottom: 4px; }
.bury-steps { margin-top: 8px; }

/* Leaderboard */
.leaderboard { display: flex; flex-direction: column; gap: 8px; }
.krabber-row {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
}
.rank { font-size: 1.2em; font-weight: 700; color: var(--accent); min-width: 40px; }
.krabber-info { flex: 1; }
.krabber-name { font-weight: 600; display: block; }
.krabber-entity { color: var(--text-muted); font-size: 0.85em; }
.krabber-stats { display: flex; gap: 12px; color: var(--text-muted); font-size: 0.9em; }

/* Contributor profile */
.contributor-header { margin-bottom: 20px; }
.contributor-header h1 { margin-bottom: 4px; }
.contributor-stats { display: flex; gap: 16px; margin-bottom: 24px; }
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px 24px;
  text-align: center;
  flex: 1;
}
.stat-num { display: block; font-size: 1.8em; font-weight: 700; color: var(--accent); }
.stat-label { color: var(--text-muted); font-size: 0.9em; }

/* Activity list */
.activity-list { display: flex; flex-direction: column; gap: 8px; }
.activity-row {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
  color: var(--text);
  transition: background 0.15s;
}
.activity-row:hover { background: var(--bg-hover); text-decoration: none; }
.activity-kind { min-width: 50px; text-align: center; font-size: 0.75em; }
.badge-hole { background: var(--settled); color: #fff; }
.badge-shell { background: var(--accent); color: #000; }
.badge-dig { background: var(--holding); color: #000; }
.badge-bury { background: var(--contested); color: #000; }
.activity-body { flex: 1; min-width: 0; }
.activity-title { font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.activity-detail { color: var(--text-muted); font-size: 0.85em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.activity-time { color: var(--text-muted); font-size: 0.8em; white-space: nowrap; }

/* About page */
.about-vocab { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; margin: 16px 0; }
.vocab-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 8px; padding: 16px; }
.vocab-card strong { color: var(--accent); font-size: 1.1em; display: block; margin-bottom: 4px; }
.vocab-card p { color: var(--text-muted); margin: 0; }
.vocab-example { font-size: 0.85em; color: var(--accent); margin-top: 6px !important; font-style: italic; }
.about-quote { border-left: 3px solid var(--accent); padding: 12px 16px; margin: 16px 0; color: var(--text-muted); font-style: italic; }
.about-quote strong { color: var(--text); font-style: normal; }
.faq { margin: 16px 0; }
.faq details { background: var(--bg-card); border: 1px solid var(--border); border-radius: 8px; padding: 12px 16px; margin-bottom: 8px; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq p { margin: 8px 0 0; color: var(--text-muted); }
.about-footer { text-align: center; margin-top: 32px; font-size: 1.1em; }

/* Install guide */
.install-steps { margin: 16px 0; }
.install-steps h3 { margin: 20px 0 8px; color: var(--accent); font-size: 1.1em; }
.install-steps p { color: var(--text-muted); margin: 4px 0 8px; }
.install-steps details { background: var(--bg-card); border: 1px solid var(--border); border-radius: 8px; padding: 12px 16px; margin-bottom: 8px; }
.install-steps details summary { cursor: pointer; font-weight: 500; }
.install-steps details pre { margin-top: 12px; }
.tool-list { display: flex; flex-wrap: wrap; gap: 8px; margin: 8px 0; }
.tool-list code { background: var(--bg-card); border: 1px solid var(--border); padding: 4px 10px; border-radius: 4px; font-size: 0.9em; }

/* Markdown rendered content */
.markdown-body { line-height: 1.7; }
.markdown-body p { margin: 0.5em 0; }
.markdown-body p:first-child { margin-top: 0; }
.markdown-body p:last-child { margin-bottom: 0; }
.markdown-body h1, .markdown-body h2, .markdown-body h3, .markdown-body h4 {
  margin: 1em 0 0.5em; font-weight: 600;
}
.markdown-body h1 { font-size: 1.4em; }
.markdown-body h2 { font-size: 1.2em; }
.markdown-body h3 { font-size: 1.1em; }
.markdown-body ul, .markdown-body ol { padding-left: 1.5em; margin: 0.5em 0; }
.markdown-body li { margin: 0.25em 0; }
.markdown-body blockquote {
  border-left: 3px solid var(--accent); padding: 4px 16px; margin: 0.5em 0;
  color: var(--text-muted); font-style: italic;
}
.markdown-body code {
  background: var(--bg); padding: 2px 6px; border-radius: 4px; font-size: 0.9em;
}
.markdown-body pre {
  background: var(--bg); padding: 12px 16px; border-radius: 6px;
  overflow-x: auto; margin: 0.5em 0; border: 1px solid var(--border);
}
.markdown-body pre code { background: none; padding: 0; }
.markdown-body table {
  border-collapse: collapse; width: 100%; margin: 0.5em 0;
}
.markdown-body th, .markdown-body td {
  border: 1px solid var(--border); padding: 6px 12px; text-align: left;
}
.markdown-body th { background: var(--bg); font-weight: 600; }
.markdown-body a { color: var(--accent); }
.markdown-body a:hover { text-decoration: underline; }
.markdown-body img { max-width: 100%; border-radius: 6px; }
.markdown-body hr { border: none; border-top: 1px solid var(--border); margin: 1em 0; }
.markdown-body del { color: var(--text-muted); }
.markdown-body input[type="checkbox"] { margin-right: 4px; }

/* Empty state */
.empty-state {
  text-align: center;
  padding: 48px 16px;
  color: var(--text-muted);
}
.empty-state h2 { color: var(--text); margin-bottom: 8px; }
.empty-state code { display: block; margin-top: 16px; padding: 12px; }

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 24px 16px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85em;
}

/* Responsive */
@media (max-width: 480px) {
  h1 { font-size: 1.3em; }
  .hole-header { flex-direction: column; align-items: flex-start; gap: 4px; }
  .hole-stats, .krabber-stats { flex-wrap: wrap; gap: 8px; }
  .krabber-row { flex-direction: column; align-items: flex-start; }
  .rank { min-width: auto; }
}