:root {
  --bg: #f3efe6;
  --paper: rgba(255, 252, 247, 0.84);
  --panel: rgba(26, 33, 31, 0.92);
  --text: #1a211f;
  --muted: #5f655d;
  --line: rgba(26, 33, 31, 0.14);
  --accent: #a31f34;
  --arch: #7c7f7a;
  --accent-soft: rgba(162, 74, 44, 0.12);
  --shadow: 0 24px 60px rgba(26, 33, 31, 0.08);
  --radius: 24px;
  --max-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Avenir Next", "Segoe UI", "Helvetica Neue", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at top left, rgba(162, 74, 44, 0.09), transparent 30%), linear-gradient(180deg, #efe8da 0%, #f7f4ec 45%, #ede7db 100%);
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

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

.site-shell {
  width: min(100% - 2rem, var(--max-width));
  margin: 0 auto;
  padding: 1.25rem 0 3rem;
}

.site-header,
.site-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
}

.site-header {
  padding: 0.5rem 0 1.5rem;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.wordmark-mit,
.wordmark-arch {
  font-family: Iowan Old Style, Palatino, "Book Antiqua", Georgia, serif;
  font-size: clamp(2rem, 4.8vw, 3.5rem);
  font-weight: 600;
  letter-spacing: 0.025em;
  text-transform: uppercase;
}

.wordmark-mit {
  color: var(--accent);
}

.wordmark-arch {
  color: var(--arch);
}

.eyebrow,
.news-meta,
.seminar-date,
.seminar-details,
.archive-card p,
.page-link-row {
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.78rem;
}

.news-meta,
.seminar-date,
.seminar-details,
.archive-card p {
  color: var(--muted);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.95rem;
}

.site-nav a {
  color: var(--muted);
}

a,
.text-link {
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18rem;
}

.intro-panel,
.rail-card,
.archive-card,
.news-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
  padding: 2.5rem;
}

.rail-card,
.archive-card,
.news-item {
  padding: 1.5rem;
}

.eyebrow {
  color: var(--accent);
  margin: 0 0 0.75rem;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: Iowan Old Style, Palatino, "Book Antiqua", Georgia, serif;
  font-weight: 500;
  line-height: 0.98;
}

h1 {
  font-size: clamp(3rem, 9vw, 5.8rem);
  max-width: 12ch;
}

h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
}

h3 {
  font-size: 1.2rem;
}

p {
  margin: 0;
  line-height: 1.65;
}

.hero-body {
  max-width: 54ch;
  font-size: 1.1rem;
}

.home-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.65fr) minmax(280px, 0.9fr);
  gap: 1.5rem;
  align-items: start;
}

.content-main,
.content-sidebar {
  display: grid;
  gap: 1.5rem;
}

.intro-panel {
  max-width: 760px;
}

.homepage-section,
.page-header,
.stack-list,
.archive-grid,
.seminar-list {
  display: grid;
  gap: 1rem;
}

.homepage-section {
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
}

.homepage-section:first-child {
  padding-top: 0;
  border-top: 0;
}

.section-heading {
  display: grid;
  gap: 0.35rem;
}

.people-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem 1.5rem;
}

.person-card {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 0.9rem;
  align-items: center;
  padding: 0.2rem 0;
}

.person-portrait {
  width: 72px;
  height: 72px;
  object-fit: cover;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #ddd7cc;
}

.person-copy {
  display: grid;
  gap: 0.25rem;
}

.person-name {
  font-size: 1.05rem;
}

.person-copy p {
  color: var(--muted);
  line-height: 1.45;
}

.alumni-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem 1.5rem;
}

.alumni-item {
  padding: 0.3rem 0;
}

.alumni-line,
.alumni-year,
.alumni-job {
  line-height: 1.4;
}

.alumni-year,
.alumni-job {
  color: var(--muted);
}

.alumni-separator,
.alumni-job {
  color: var(--muted);
}

.content-sidebar {
  position: sticky;
  top: 1rem;
}

.hero-news {
  align-content: start;
  gap: 1.1rem;
  padding: 1.5rem 1.5rem 1.35rem;
  width: 100%;
}

.hero-news .section-heading h2 {
  font-size: 1.55rem;
}

.hero-news .news-list {
  display: grid;
  gap: 0;
}

.rail-card,
.stack-list,
.archive-grid,
.seminar-list {
  display: grid;
  gap: 1rem;
}

.news-item,
.seminar-talk {
  display: grid;
  gap: 0.55rem;
}

.news-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
}

.news-meta-separator {
  color: var(--muted);
}

.seminar-talk {
  grid-template-columns: 120px minmax(0, 1fr);
  align-items: start;
  padding: 1.25rem 0;
  border-top: 1px solid var(--line);
}

.seminar-talk:first-child {
  border-top: 0;
  padding-top: 0;
}

.seminar-copy {
  display: grid;
  gap: 0.45rem;
}

.seminar-speaker span {
  color: var(--muted);
}

.hero-news .news-item {
  background: transparent;
  box-shadow: none;
  border-radius: 0;
  padding: 0.8rem 0;
  border: 0;
  border-top: 1px solid var(--line);
}

.hero-news .news-item:first-child {
  padding-top: 0;
  border-top: 0;
}

.hero-news .news-meta {
  font-size: 0.72rem;
  gap: 0.55rem;
}

.news-copy {
  font-size: 0.92rem;
  line-height: 1.45;
}

.news-copy > * + * {
  margin-top: 0.35rem;
}

.hero-news .text-link {
  margin-top: 0.25rem;
}

.page-header {
  padding: 1rem 0 0.5rem;
}

.archive-grid {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.page-link-row,
.site-footer {
  padding-top: 1.25rem;
}

.site-footer {
  margin-top: 2rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.92rem;
}

@media (max-width: 980px) {
  .site-header {
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 1rem 1.5rem;
  }
  .site-nav {
    width: 100%;
    justify-content: flex-start;
    gap: 0.85rem 1.1rem;
    padding-top: 0.2rem;
  }
  .home-layout {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .content-sidebar {
    position: static;
  }
  .intro-panel {
    max-width: none;
    padding: 2rem;
  }
  .hero-news {
    padding: 1.35rem;
  }
  .people-grid {
    grid-template-columns: 1fr;
    gap: 0.7rem;
  }
  .alumni-item {
    padding: 0.2rem 0;
  }
}
@media (max-width: 640px) {
  .site-shell {
    width: min(100% - 1.25rem, var(--max-width));
    padding: 0.9rem 0 2.25rem;
  }
  .site-header,
  .site-footer {
    flex-direction: column;
    align-items: center;
  }
  .site-header {
    gap: 0.75rem;
    padding-bottom: 1rem;
    text-align: center;
  }
  .wordmark {
    gap: 0.45rem;
    justify-content: center;
  }
  .wordmark-mit,
  .wordmark-arch {
    font-size: clamp(1.7rem, 11vw, 2.35rem);
  }
  .site-nav {
    font-size: 0.9rem;
    gap: 0.6rem 0.9rem;
    justify-content: center;
  }
  .hero-copy,
  .intro-panel,
  .hero-news,
  .archive-card,
  .news-item {
    padding: 1.15rem;
    border-radius: 18px;
  }
  .hero-body {
    font-size: 1rem;
    line-height: 1.55;
  }
  .homepage-section {
    padding-top: 1rem;
  }
  .section-heading h2,
  .hero-news .section-heading h2 {
    font-size: 1.35rem;
  }
  .person-card {
    grid-template-columns: 60px minmax(0, 1fr);
    gap: 0.75rem;
  }
  .person-portrait {
    width: 60px;
    height: 60px;
  }
  .person-name {
    font-size: 1rem;
  }
  .alumni-list {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }
  .alumni-item {
    grid-template-columns: 1fr;
    gap: 0.15rem;
    padding: 0.35rem 0;
  }
  .seminar-talk {
    grid-template-columns: 1fr;
  }
}