:root {
  --page-bg: #f7f8fb;
  --panel: #ffffff;
  --muted: #6b7280;
  --accent: #2563eb;
}

body {
  background: var(--page-bg);
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
}

.site-header {
  background: var(--panel);
  border-bottom: 1px solid #e5e7eb;
  padding: 18px 0;
}

.page-title {
  font-family: "Space Mono", monospace;
  font-size: 2rem;
  margin-top: 10px;
}

.page-hero p {
  color: var(--muted);
  max-width: 720px;
}

.page-content {
  margin-top: 20px;
}

.filter-panel {
  border-radius: 16px !important;
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.08);
}

.filter-group {
  flex-wrap: wrap;
}

.filter-chip.active {
  background: var(--accent) !important;
  color: #ffffff !important;
}

.writeup-cards .card-cover {
  height: 160px;
  background: linear-gradient(135deg, #dbeafe, #eff6ff);
  display: flex;
  align-items: center;
  justify-content: center;
}

.writeup-cards .card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 6px;
}

.empty-state {
  text-align: center;
  color: var(--muted);
  padding: 32px 0;
}

.meta {
  color: var(--muted);
  font-size: 13px;
}

.markdown-body {
  font-size: 15px;
  line-height: 1.7;
}

.markdown-body pre {
  border: 1px solid #e5e7eb;
  border-radius: 10px;
  background: #f1f5f9;
  padding: 12px 14px;
  overflow-x: auto;
}

.markdown-body code {
  background: #f1f5f9;
  border-radius: 6px;
  padding: 2px 6px;
}

.admonition {
  border-left: 5px solid #2563eb;
  background: #e7f0ff;
  padding: 12px 14px;
  border-radius: 8px;
  margin: 16px 0;
}