/* ============================================
   NodeLoc Style Theme - Clean Modern Blog
   Inspired by nodeloc.com Discourse forum
   ============================================ */

/* === CSS Variables === */
:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f0f5ff;
  --bg-card: rgba(255, 255, 255, 0.95);
  --bg-hover: #e6f0ff;
  --text-primary: #1a1a2e;
  --text-secondary: #4a5568;
  --text-muted: #718096;
  --accent: #2563eb;
  --accent-light: #3b82f6;
  --accent-bg: #dbeafe;
  --border: #bfdbfe;
  --border-light: #e0e7ff;
  --shadow-sm: 0 1px 3px rgba(37, 99, 235, 0.1);
  --shadow-md: 0 4px 12px rgba(37, 99, 235, 0.15), 0 2px 4px rgba(37, 99, 235, 0.08);
  --shadow-lg: 0 10px 25px rgba(37, 99, 235, 0.2), 0 4px 10px rgba(37, 99, 235, 0.1);
  --radius: 10px;
  --radius-lg: 14px;
  --transition: all 0.25s ease;
}

/* === Reset & Base === */
*, *::before, *::after {
  box-sizing: border-box;
}

body {
  background: linear-gradient(135deg, #e0ecff 0%, #f0f5ff 25%, #ffffff 50%, #f0f5ff 75%, #e0ecff 100%) !important;
  background-attachment: fixed !important;
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
  margin: 0;
  padding: 0;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* === Header === */
#header {
  background: rgba(255, 255, 255, 0.85) !important;
  backdrop-filter: blur(10px) !important;
  -webkit-backdrop-filter: blur(10px) !important;
  border-bottom: 1px solid var(--border) !important;
  box-shadow: var(--shadow-sm) !important;
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 12px 0 !important;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.title-left a {
  font-size: 20px !important;
  font-weight: 700 !important;
  color: var(--text-primary) !important;
  text-decoration: none !important;
  letter-spacing: -0.5px;
}

.title-left .sub {
  font-size: 13px !important;
  color: var(--text-muted) !important;
  font-weight: 400 !important;
  margin-left: 8px;
}

.avatar {
  width: 36px !important;
  height: 36px !important;
  border-radius: 50% !important;
  border: 2px solid var(--border) !important;
  box-shadow: none !important;
  transition: var(--transition) !important;
}

.avatar:hover {
  border-color: var(--accent) !important;
  box-shadow: 0 0 0 3px var(--accent-bg) !important;
}

/* === Main Content === */
#content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
  display: flex;
  gap: 24px;
}

/* === Sidebar === */
.SideNav {
  width: 240px !important;
  flex-shrink: 0;
  background: rgba(255, 255, 255, 0.9) !important;
  backdrop-filter: blur(8px) !important;
  -webkit-backdrop-filter: blur(8px) !important;
  border-radius: var(--radius-lg) !important;
  border: 1px solid var(--border) !important;
  box-shadow: var(--shadow-md) !important;
  padding: 16px 0 !important;
  position: sticky;
  top: 80px;
  height: fit-content;
}

.SideNav-item {
  display: flex !important;
  align-items: center;
  gap: 8px;
  padding: 10px 20px !important;
  color: var(--text-secondary) !important;
  font-size: 14px !important;
  font-weight: 500;
  border-left: 3px solid transparent !important;
  transition: var(--transition) !important;
  text-decoration: none !important;
}

.SideNav-item:hover {
  background: var(--bg-hover) !important;
  color: var(--accent) !important;
  border-left-color: var(--accent) !important;
}

.SideNav-item a {
  color: inherit !important;
  text-decoration: none !important;
}

/* === Post List === */
#post-list {
  flex: 1;
  min-width: 0;
}

/* === Post Card === */
.post-card {
  background: rgba(255, 255, 255, 0.92) !important;
  backdrop-filter: blur(6px) !important;
  -webkit-backdrop-filter: blur(6px) !important;
  border: 1px solid rgba(191, 219, 254, 0.6) !important;
  border-radius: var(--radius-lg) !important;
  padding: 20px 24px !important;
  margin-bottom: 12px !important;
  transition: var(--transition) !important;
  cursor: pointer;
  box-shadow: var(--shadow-sm) !important;
}

.post-card:hover {
  border-color: var(--accent) !important;
  box-shadow: var(--shadow-lg) !important;
  transform: translateY(-2px);
}

.post-card .post-title {
  font-size: 16px !important;
  font-weight: 600 !important;
  color: var(--text-primary) !important;
  margin-bottom: 8px !important;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-card .post-title a {
  color: inherit !important;
  text-decoration: none !important;
}

.post-card .post-title a:hover {
  color: var(--accent) !important;
}

.post-card .post-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px !important;
  color: var(--text-muted) !important;
}

.post-card .post-date {
  color: var(--text-muted) !important;
}

/* === Tags / Labels === */
.Label {
  display: inline-flex !important;
  align-items: center;
  padding: 2px 10px !important;
  font-size: 12px !important;
  font-weight: 500 !important;
  border-radius: 20px !important;
  border: none !important;
  background: var(--accent-bg) !important;
  color: var(--accent) !important;
  text-shadow: none !important;
  transition: var(--transition) !important;
}

.Label:hover {
  background: var(--accent) !important;
  color: white !important;
}

/* === Markdown Content === */
.markdown-body {
  background: rgba(255, 255, 255, 0.93) !important;
  backdrop-filter: blur(8px) !important;
  -webkit-backdrop-filter: blur(8px) !important;
  border: 1px solid rgba(191, 219, 254, 0.5) !important;
  border-radius: var(--radius-lg) !important;
  padding: 32px 40px !important;
  box-shadow: var(--shadow-md) !important;
  max-width: 800px;
  margin: 0 auto;
  color: var(--text-primary) !important;
  font-size: 15px !important;
  line-height: 1.8 !important;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4 {
  color: var(--text-primary) !important;
  font-weight: 700 !important;
  margin-top: 32px !important;
  margin-bottom: 16px !important;
  border-bottom: none !important;
  padding-bottom: 0 !important;
}

.markdown-body h1 { font-size: 28px !important; }
.markdown-body h2 { font-size: 22px !important; }
.markdown-body h3 { font-size: 18px !important; }

.markdown-body p {
  margin-bottom: 16px !important;
  color: var(--text-secondary) !important;
}

.markdown-body a {
  color: var(--accent) !important;
  text-decoration: none !important;
  border-bottom: 1px solid transparent;
  transition: var(--transition) !important;
}

.markdown-body a:hover {
  border-bottom-color: var(--accent) !important;
}

.markdown-body code {
  background: var(--bg-secondary) !important;
  color: var(--accent) !important;
  padding: 2px 6px !important;
  border-radius: 4px !important;
  font-size: 13px !important;
  border: 1px solid var(--border-light) !important;
}

.markdown-body pre {
  background: #1e293b !important;
  border-radius: var(--radius) !important;
  padding: 20px !important;
  overflow-x: auto;
  border: none !important;
  margin: 20px 0 !important;
}

.markdown-body pre code {
  background: transparent !important;
  color: #e2e8f0 !important;
  border: none !important;
  padding: 0 !important;
  font-size: 14px !important;
  line-height: 1.6 !important;
}

.markdown-body blockquote {
  border-left: 4px solid var(--accent) !important;
  background: var(--accent-bg) !important;
  color: var(--text-secondary) !important;
  padding: 16px 20px !important;
  margin: 20px 0 !important;
  border-radius: 0 var(--radius) var(--radius) 0 !important;
}

.markdown-body blockquote p:last-child {
  margin-bottom: 0 !important;
}

.markdown-body ul,
.markdown-body ol {
  padding-left: 24px !important;
  margin: 16px 0 !important;
}

.markdown-body li {
  margin-bottom: 8px !important;
  color: var(--text-secondary) !important;
}

.markdown-body hr {
  border: none !important;
  height: 1px !important;
  background: var(--border) !important;
  margin: 32px 0 !important;
}

.markdown-body table {
  width: 100% !important;
  border-collapse: collapse !important;
  margin: 20px 0 !important;
}

.markdown-body th {
  background: var(--bg-secondary) !important;
  font-weight: 600 !important;
  text-align: left !important;
  padding: 12px 16px !important;
  border-bottom: 2px solid var(--border) !important;
}

.markdown-body td {
  padding: 12px 16px !important;
  border-bottom: 1px solid var(--border-light) !important;
}

.markdown-body tr:hover td {
  background: var(--bg-hover) !important;
}

/* === Footer === */
#footer {
  background: rgba(255, 255, 255, 0.85) !important;
  backdrop-filter: blur(10px) !important;
  -webkit-backdrop-filter: blur(10px) !important;
  border-top: 1px solid var(--border) !important;
  padding: 32px 24px !important;
  text-align: center;
  margin-top: 48px;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  color: var(--text-muted) !important;
  font-size: 13px !important;
}

.footer-inner a {
  color: var(--accent) !important;
  text-decoration: none !important;
}

/* === Pagination === */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 32px;
}

.pagination a,
.pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 12px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none !important;
  transition: var(--transition);
}

.pagination a {
  background: var(--bg-primary);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

.pagination a:hover {
  background: var(--accent-bg);
  color: var(--accent);
  border-color: var(--accent);
}

.pagination .current {
  background: var(--accent);
  color: white;
  border: 1px solid var(--accent);
}

/* === Responsive === */
@media (max-width: 768px) {
  #content {
    flex-direction: column;
    padding: 16px;
  }

  .SideNav {
    width: 100% !important;
    position: static !important;
    border-radius: var(--radius) !important;
  }

  .markdown-body {
    padding: 20px !important;
  }

  .header-inner {
    padding: 0 16px;
  }

  .title-left .sub {
    display: none;
  }
}

/* === Animations === */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.post-card {
  animation: fadeInUp 0.3s ease forwards;
}

.post-card:nth-child(1) { animation-delay: 0.05s; }
.post-card:nth-child(2) { animation-delay: 0.1s; }
.post-card:nth-child(3) { animation-delay: 0.15s; }
.post-card:nth-child(4) { animation-delay: 0.2s; }
.post-card:nth-child(5) { animation-delay: 0.25s; }