:root {
  --bg-window: #f6f5f4;
  --bg-view: #ffffff;
  --bg-muted: #ebebed;
  --bg-hover: #f1f3f5;
  --ink: #241f31;
  --ink-soft: #5e5c64;
  --brand: #3584e4;
  --brand-strong: #1c71d8;
  --accent: #62a0ea;
  --card: rgba(255, 255, 255, 0.92);
  --line: #d6d3d1;
  --shadow: 0 8px 24px rgba(36, 31, 49, 0.08);
  --shadow-soft: 0 2px 6px rgba(36, 31, 49, 0.06);
  --radius-xl: 22px;
  --radius-lg: 18px;
  --radius-md: 12px;
  --max: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Cantarell", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 100% 0%, rgba(53, 132, 228, 0.1), transparent 28%),
    radial-gradient(circle at 0% 100%, rgba(98, 160, 234, 0.08), transparent 30%),
    linear-gradient(180deg, #fafafa, var(--bg-window));
  min-height: 100vh;
  line-height: 1.5;
  overflow-x: hidden;
}

a {
  color: var(--brand);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: min(var(--max), calc(100% - 2rem));
  margin: 0 auto;
}

#site-header header {
  position: static;
  backdrop-filter: blur(18px);
  background: rgba(246, 245, 244, 0.82);
  border-bottom: 1px solid rgba(214, 211, 209, 0.9);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.6);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 0;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--ink);
  font-weight: 700;
  font-size: 1.02rem;
}

nav {
  display: flex;
  gap: 0.55rem;
  align-items: center;
}

nav a {
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 0.94rem;
  font-weight: 600;
  padding: 0.48rem 0.8rem;
  border-radius: 10px;
  transition: background-color 160ms ease, color 160ms ease, border-color 160ms ease;
  border: 1px solid transparent;
}

nav a:hover {
  color: var(--ink);
  background: var(--bg-hover);
  border-color: rgba(214, 211, 209, 0.8);
  text-decoration: none;
}

main {
  padding: 2rem 0;
}

h1, h2, h3 {
  color: var(--ink);
  line-height: 1.2;
}

h1 {
  font-size: 2rem;
  margin: 0 0 1.5rem 0;
}

h2 {
  font-size: 1.5rem;
  margin: 1.5rem 0 1rem 0;
}

article {
  background: var(--card);
  padding: 2rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
  margin-bottom: 2rem;
}

.post-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.post-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--line);
  transition: background-color 120ms ease;
}

.post-list li:hover {
  background: var(--bg-muted);
  border-radius: var(--radius-md);
  padding: 0.8rem 0.8rem;
  margin: 0 -0.8rem;
}

.post-list a {
  color: var(--brand);
  font-weight: 500;
}

.post-list span {
  font-size: 0.85rem;
  color: var(--ink-soft);
  white-space: nowrap;
}

footer {
  margin-top: 4rem;
  padding: 1.5rem 0;
  border-top: 1px solid var(--line);
  text-align: center;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.blog-home-intro {
  margin-bottom: 1.2rem;
}

.blog-home-subtitle {
  font-size: 1.04rem;
  color: var(--ink-soft);
  margin-bottom: 1.5rem;
}

.blog-category-browse {
  margin-bottom: 1.6rem;
}

.section-kicker {
  margin: 0 0 0.65rem;
  color: var(--brand-strong);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.blog-featured {
  margin-bottom: 2rem;
}

.blog-featured-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.4rem;
  background:
    linear-gradient(120deg, rgba(53, 132, 228, 0.08), rgba(255, 255, 255, 0) 40%),
    var(--card);
  box-shadow: var(--shadow-soft);
}

.blog-featured-card h2 {
  margin: 0 0 0.55rem;
}

.blog-featured-summary {
  margin-top: 0.75rem;
  margin-bottom: 1rem;
}

.blog-meta {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.blog-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 0.8rem;
  border: 1px solid rgba(53, 132, 228, 0.35);
  border-radius: 999px;
  background: rgba(53, 132, 228, 0.08);
  font-weight: 700;
  text-decoration: none;
}

.blog-cta:hover {
  text-decoration: none;
  background: rgba(53, 132, 228, 0.14);
}

.blog-section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}

.blog-section-head h2 {
  margin-top: 0;
}

.blog-archive-link {
  color: var(--ink-soft);
  font-size: 0.9rem;
  font-weight: 700;
}

.blog-post-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
}

.blog-post-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 1rem;
  background: var(--card);
  box-shadow: var(--shadow-soft);
}

.blog-post-card h3 {
  margin-top: 0;
  margin-bottom: 0.4rem;
  font-size: 1.06rem;
}

.blog-post-card p {
  margin-top: 0.55rem;
  margin-bottom: 0;
  color: var(--ink-soft);
}

.blog-muted {
  color: var(--ink-soft);
}

.blog-single {
  padding: 1.4rem;
}

.blog-back-link-wrap {
  margin-top: 0;
  margin-bottom: 1rem;
}

.blog-cta-subtle {
  background: transparent;
  border-color: var(--line);
  color: var(--ink-soft);
}

.blog-cta-subtle:hover {
  background: var(--bg-hover);
}

.blog-single-header {
  margin-bottom: 1.3rem;
  padding-bottom: 1rem;
  border-bottom: 1px dashed var(--line);
}

.blog-single-header h1 {
  margin-bottom: 0.6rem;
}

.blog-single-summary {
  margin-top: 0.7rem;
  margin-bottom: 0.8rem;
  color: var(--ink-soft);
  font-size: 1.02rem;
}

.blog-scholarly-meta {
  margin-top: 0.7rem;
  margin-bottom: 0.95rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1rem;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.blog-sch-item a {
  font-weight: 700;
}

.blog-tag-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.blog-tag {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  border: 1px solid rgba(53, 132, 228, 0.35);
  background: rgba(53, 132, 228, 0.08);
  color: var(--brand-strong);
  font-size: 0.82rem;
  font-weight: 700;
  padding: 0.2rem 0.55rem;
}

.blog-tag-link {
  text-decoration: none;
}

.blog-tag-link:hover {
  text-decoration: none;
  background: rgba(53, 132, 228, 0.16);
}

.blog-tag-link:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
}

.blog-category-tag {
  background: rgba(53, 132, 228, 0.14);
  border-color: rgba(28, 113, 216, 0.5);
}

.blog-content {
  color: var(--ink);
  font-size: 1.03rem;
  line-height: 1.78;
  counter-reset: mermaid-figure section;
}

.blog-content p {
  margin-top: 0;
  margin-bottom: 1rem;
}

.blog-content h2,
.blog-content h3 {
  margin-top: 1.7rem;
  margin-bottom: 0.7rem;
}

.blog-content h2 {
  counter-increment: section;
  counter-reset: subsection;
}

.blog-content h2::before {
  content: counter(section) ". ";
}

.blog-content h2:first-of-type {
  counter-increment: none;
}

.blog-content h2:first-of-type::before {
  content: "";
}

.blog-content h3 {
  counter-increment: subsection;
}

.blog-content h3::before {
  content: counter(section) "." counter(subsection) " ";
}

.blog-content ul,
.blog-content ol {
  margin-top: 0.4rem;
  margin-bottom: 1rem;
  padding-left: 1.25rem;
}

.blog-content figure {
  margin: 1.4rem auto;
  text-align: center;
}

.blog-content figure img,
.blog-content > p > img {
  display: block;
  width: min(100%, 860px);
  height: auto;
  margin: 0 auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
}

.blog-content figure figcaption {
  margin-top: 0.55rem;
  color: var(--ink-soft);
  font-size: 0.92rem;
  line-height: 1.45;
}

.blog-content .mermaid {
  width: min(100%, 980px);
  margin: 1.35rem auto;
  padding: 0.35rem;
  overflow-x: auto;
  font-size: 1rem;
}

.blog-content .mermaid svg {
  width: 100% !important;
  height: auto !important;
}

.blog-content .figure-caption {
  width: min(100%, 860px);
  margin: -0.35rem auto 1.25rem;
  color: var(--ink-soft);
  font-size: 0.92rem;
  line-height: 1.45;
  text-align: center;
  counter-increment: mermaid-figure;
}

.blog-content .figure-caption em {
  font-style: normal;
}

.blog-content .figure-caption::before {
  content: "Figure " counter(mermaid-figure) ". ";
  font-weight: 700;
}

.blog-content a.fig-ref {
  font-weight: 700;
}

.blog-content code {
  background: rgba(36, 31, 49, 0.07);
  border-radius: 5px;
  padding: 0.06rem 0.34rem;
  font-size: 0.92em;
}

.blog-content pre {
  overflow-x: auto;
  background: #f3f3f5;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 0.9rem;
}

.blog-content pre code {
  background: transparent;
  padding: 0;
}

.blog-related {
  margin-top: 1.5rem;
}

.blog-pagination {
  margin-top: 1.15rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  padding-top: 0.8rem;
  border-top: 1px solid var(--line);
}

.blog-page-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 9.5rem;
  padding: 0.45rem 0.7rem;
  border: 1px solid rgba(53, 132, 228, 0.32);
  border-radius: 999px;
  background: rgba(53, 132, 228, 0.06);
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
}

.blog-page-link:hover {
  text-decoration: none;
  background: rgba(53, 132, 228, 0.12);
}

.blog-page-link.is-disabled {
  color: var(--ink-soft);
  border-color: var(--line);
  background: transparent;
}

.blog-page-status {
  color: var(--ink-soft);
  font-size: 0.9rem;
  font-weight: 700;
}

@media (max-width: 760px) {
  .blog-post-grid {
    grid-template-columns: 1fr;
  }

  .blog-section-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.35rem;
  }

  .blog-single {
    padding: 1.05rem;
  }

  .blog-pagination {
    flex-direction: column;
    align-items: stretch;
  }

  .blog-page-link {
    min-width: 0;
  }

  .blog-page-status {
    text-align: center;
  }

  .blog-content figure {
    margin: 1rem auto;
  }

  .blog-content figure img,
  .blog-content > p > img {
    width: 100%;
    border-radius: 10px;
  }
}