:root {
  color-scheme: light;
  --bg: #f3f5f8;
  --surface: #fdfdfc;
  --surface-strong: #ffffff;
  --text: #18212b;
  --muted: #586473;
  --border: #cfd7e3;
  --accent: #274c77;
  --accent-soft: #e9eff7;
  --code-bg: #161c24;
  --code-text: #edf2f7;
  --shadow: 0 10px 30px rgba(24, 33, 43, 0.06);
  --width: 760px;
  --radius: 10px;
  --font-body: "Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  background:
    radial-gradient(circle at top left, rgba(39, 76, 119, 0.06), transparent 28rem),
    linear-gradient(180deg, var(--bg) 0%, var(--surface) 100%);
  color: var(--text);
  line-height: 1.7;
}

a {
  color: var(--accent);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

a:hover,
a:focus-visible {
  text-decoration-thickness: 0.12em;
}

img {
  max-width: 100%;
  height: auto;
}

code,
pre {
  font-family: var(--font-mono);
}

.site-shell {
  width: min(100% - 2rem, 1080px);
  margin: 0 auto;
  padding: 2rem 0 4rem;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 0 0 1rem;
  margin: 0 0 2rem;
  border-bottom: 1px solid var(--border);
}

.brand {
  display: inline-flex;
  align-items: center;
  color: var(--text);
  text-decoration: none;
}

.brand-copy {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.brand-title {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.brand-subtitle {
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.1;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.site-nav {
  display: flex;
  gap: 1.15rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.site-nav a {
  text-decoration: none;
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a[aria-current="page"] {
  color: var(--accent);
}

.hero,
.panel,
.article-shell {
  background: color-mix(in srgb, var(--surface-strong) 96%, transparent);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero {
  padding: 3.2rem 3rem;
  margin-bottom: 1.75rem;
}

.hero h1,
.article-header h1,
.page-title {
  margin: 0;
  font-family: var(--font-body);
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  line-height: 1.1;
  letter-spacing: 0;
}

.hero-eyebrow {
  margin: 0 0 0.9rem;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero p,
.article-description,
.page-intro {
  margin: 1rem 0 0;
  max-width: 60ch;
  font-size: 1.03rem;
  color: var(--muted);
}

.hero-byline {
  font-size: 0.98rem;
  max-width: 70ch;
}

.social-links,
.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.5rem;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.28rem 0.55rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: transparent;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.79rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.panel {
  padding: 1.8rem;
  margin-bottom: 1rem;
}

.section-title {
  margin: 0 0 1rem;
  font-family: var(--font-body);
  font-size: 1.9rem;
}

.post-list {
  display: grid;
  gap: 1rem;
}

.post-card {
  display: block;
  padding: 1.45rem 0;
  border-bottom: 1px solid var(--border);
  border-radius: 0;
  background: transparent;
  color: inherit;
  text-decoration: none;
  transition: color 150ms ease, border-color 150ms ease;
}

.post-card:hover,
.post-card:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
}

.post-card h2 {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.85rem;
  line-height: 1.2;
}

.post-card p {
  margin: 0.8rem 0 0;
  color: var(--muted);
}

.post-card:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.post-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 0.95rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.article-shell {
  padding: min(5vw, 3rem);
}

.article-header {
  padding-bottom: 1.75rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1.75rem;
}

.markdown-body {
  width: min(100%, var(--width));
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4,
.markdown-body h5,
.markdown-body h6 {
  margin: 2rem 0 0.7rem;
  font-family: var(--font-body);
  line-height: 1.2;
}

.markdown-body p,
.markdown-body ul,
.markdown-body ol,
.markdown-body pre,
.markdown-body blockquote,
.markdown-body figure {
  margin: 1rem 0;
}

.markdown-body ul,
.markdown-body ol {
  padding-left: 1.4rem;
}

.markdown-body li + li {
  margin-top: 0.45rem;
}

.markdown-body blockquote {
  padding: 0.1rem 0 0.1rem 1rem;
  border-left: 2px solid var(--accent);
  color: var(--muted);
}

.markdown-body pre {
  padding: 1rem 1.1rem;
  border-radius: 8px;
  overflow-x: auto;
  background: var(--code-bg);
  color: var(--code-text);
}

.markdown-body pre code {
  background: transparent;
  color: inherit;
  padding: 0;
}

.markdown-body code {
  padding: 0.12rem 0.32rem;
  border-radius: 4px;
  background: var(--accent-soft);
}

.markdown-body figure.image-block {
  display: flex;
  justify-content: center;
  margin: 2rem 0 2.4rem;
}

.markdown-body figure.image-block img {
  display: block;
  margin: 0 auto;
  max-width: min(100%, 820px);
  border-radius: 6px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.markdown-body hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 2rem 0;
}

.empty-state,
.error-state {
  color: var(--muted);
}

.site-footer {
  margin-top: 2rem;
  padding: 1.5rem 0 0;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.88rem;
}

.redirect-page,
.fallback-page {
  width: min(100% - 2rem, 720px);
  margin: 8vh auto;
  padding: 2rem;
  background: color-mix(in srgb, var(--surface-strong) 92%, transparent);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.redirect-page h1,
.fallback-page h1 {
  margin-top: 0;
  font-family: var(--font-body);
}

@media (max-width: 720px) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-nav {
    justify-content: flex-start;
  }

  .hero,
  .panel,
  .article-shell,
  .redirect-page,
  .fallback-page {
    padding: 1.35rem;
  }
}