:root {
  --bg: #ffffff;
  --text: #111111;
  --muted: #666666;
  --line: #e5e5e5;
  --accent: #111827;
  --space-1: 0.5rem;
  --space-2: 0.75rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2.25rem;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 17px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1.78;
}

a {
  color: inherit;
  text-decoration-color: #9ca3af;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.12em;
}

a:hover {
  text-decoration-color: #111111;
}

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

.page-shell {
  width: min(100%, 72rem);
  margin: 0 auto;
  padding: 0 1.25rem var(--space-5);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.section-head,
.about-wrap {
  display: flex;
  justify-content: space-between;
  gap: var(--space-3);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(6px);
  padding-top: 0;
}

.site-masthead {
  padding: var(--space-1) 0 var(--space-1);
  text-align: center;
  border-bottom: 1px solid var(--line);
}

.site-brand {
  color: var(--text);
  display: inline-block;
  font-size: clamp(1.45rem, 2.2vw, 2rem);
  font-weight: 700;
  letter-spacing: 0.01em;
  text-decoration: none;
}

.post-list a,
.post-list a,
.site-footer a {
  text-decoration: none;
}

.page-main {
  flex: 1;
  padding-top: var(--space-3);
}

.home-intro,
.post-header {
  padding: calc(var(--space-5) + var(--space-3)) 0 var(--space-3);
}

.home-intro h1,
.post h1,
.about-card h1 {
  margin: 0;
  font-size: clamp(2.35rem, 4.6vw, 4.25rem);
  line-height: 1.04;
  letter-spacing: -0.03em;
  color: #111111;
}

.home-intro {
  max-width: 43rem;
  margin: 0 auto;
  text-align: center;
}

.home-intro p:last-child,
.deck {
  max-width: 36rem;
  margin: var(--space-2) 0 0;
  font-size: 1rem;
  color: var(--muted);
}

.home-intro p:last-child {
  margin-left: auto;
  margin-right: auto;
}

.home-section,
.about-card,
.post {
  padding-top: var(--space-5);
}

.home-link-row {
  margin: var(--space-4) 0 0;
  color: var(--muted);
  font-size: 0.94rem;
  text-align: center;
}

.home-link-row a {
  text-decoration: none;
}

.section-head {
  align-items: baseline;
  margin-bottom: var(--space-2);
}

.section-head h2,
.about-card h1 {
  margin: 0;
}

.eyebrow,
.meta,
.section-head p,
.site-footer,
.footer-nav {
  color: var(--muted);
  font-size: 0.94rem;
}

.post-list article {
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--line);
}

.post-list article:last-child {
  border-bottom: 0;
}

.post-list h3 {
  margin: var(--space-1) 0 var(--space-1);
  font-size: 1.16rem;
  line-height: 1.25;
}

.post-list p {
  margin: 0;
}

.external-mark {
  color: var(--muted);
  font-size: 0.86em;
}

.entry-tag {
  color: var(--muted);
}

.meta-sep {
  margin: 0 0.35rem;
  color: var(--muted);
}

.post {
  max-width: 43rem;
  margin: 0 auto;
  padding-top: 4rem;
  padding-bottom: 4rem;
}

.home-section {
  max-width: 43rem;
  margin: 0 auto;
  min-height: 100%;
  display: flex;
  flex-direction: column;
  padding-bottom: var(--space-5);
}

.home-section .post-list h3,
.home-section .post-list p,
.home-section .post-list .meta {
  text-align: center;
}

.list-card {
  max-width: 43rem;
  margin: 0 auto;
  min-height: 100%;
  display: flex;
  flex-direction: column;
  padding-top: var(--space-5);
  padding-bottom: var(--space-5);
}

.post-list {
  flex: 1;
}

.year-filter {
  display: flex;
  justify-content: center;
  gap: var(--space-1);
  margin-bottom: var(--space-4);
  color: var(--muted);
  font-size: 0.94rem;
}

.year-filter a {
  text-decoration: none;
}

.year-filter a.active {
  text-decoration: underline;
  text-underline-offset: 0.12em;
}

.year-heading {
  margin: var(--space-4) 0 var(--space-2);
  color: var(--muted);
  font-size: 0.94rem;
  font-weight: 600;
  text-align: center;
  scroll-margin-top: 5rem;
}

.list-card .post-list h3,
.list-card .post-list p,
.list-card .post-list .meta {
  text-align: center;
}

.post-header {
  border-bottom: 1px solid var(--line);
  text-align: center;
  padding-top: 0;
  padding-bottom: var(--space-4);
}

.post-header .eyebrow {
  margin-bottom: var(--space-1);
}

.post-kicker {
  letter-spacing: 0;
}

.post-header .deck {
  margin-left: auto;
  margin-right: auto;
}

.post-body {
  padding-top: var(--space-4);
  padding-bottom: 0;
  font-size: 1.11rem;
}

.post-body > :first-child {
  margin-top: 0;
}

.post-body p,
.post-body ul,
.post-body ol,
.post-body blockquote {
  max-width: none;
}

.post-body h2,
.post-body h3 {
  margin-top: var(--space-5);
  line-height: 1.2;
  color: #111111;
  max-width: none;
}

.post-body h2 {
  font-size: 1.6rem;
}

.post-body h3 {
  font-size: 1.2rem;
}

.post-body blockquote {
  margin-left: 0;
  padding-left: var(--space-3);
  border-left: 2px solid var(--line);
  color: #303030;
}

.post-body pre,
.post-body code {
  font-family: "SFMono-Regular", Menlo, Consolas, monospace;
}

.post-body pre {
  overflow: auto;
  padding: var(--space-3);
  background: #101418;
  color: #f3f4f6;
}

.post-body table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.96rem;
}

.post-body th,
.post-body td {
  padding: var(--space-2);
  border: 1px solid var(--line);
}

.about-wrap {
  align-items: center;
  gap: var(--space-4);
  max-width: 48rem;
  margin: 0 auto;
}

.about-photo {
  width: 10rem;
  flex: 0 0 10rem;
}

.about-photo img {
  width: 100%;
}

.site-footer {
  margin-top: auto;
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
  border-top: 1px solid var(--line);
  text-align: center;
}

.site-footer p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.35;
}

@media (max-width: 720px) {
  .site-header,
  .section-head,
  .about-wrap {
    display: block;
  }

  .about-photo {
    width: 10rem;
    margin-bottom: var(--space-3);
  }

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

}