:root {
  --bg: #eef3f8;
  --surface: #fdfefe;
  --ink: #13202b;
  --muted: #5d6b78;
  --line: #d6dee8;
  --accent: #245a8a;
  --content-width: 1120px;
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 16px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top right, rgba(36, 90, 138, 0.08), transparent 28%),
    linear-gradient(180deg, #f9fbfd 0%, var(--bg) 100%);
  color: var(--ink);
  font-family: "Manrope", sans-serif;
  line-height: 1.65;
}

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

.page-shell {
  width: min(calc(100% - 2rem), var(--content-width));
  margin: 0 auto;
  padding: 1.25rem 0 4rem;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0 0 1.25rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--line);
}

.brand {
  font-size: 0.88rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

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

.site-nav a {
  color: var(--muted);
  font-size: 0.95rem;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.hero-details a:hover,
.hero-details a:focus-visible,
.profile-link:hover,
.profile-link:focus-visible,
.project-link:hover,
.project-link:focus-visible {
  color: var(--accent);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.8fr);
  gap: 2rem;
  align-items: start;
  margin-bottom: 1.5rem;
}

.hero-copy,
.hero-photo-card,
.section-block {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
}

.hero-copy,
.section-block {
  padding: 1.75rem;
}

.hero-photo-card {
  padding: 0.9rem;
}

.eyebrow,
.group-title,
.hero-details dt {
  margin: 0;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-copy h1,
.section-heading h2 {
  margin: 0;
  font-family: "Instrument Serif", serif;
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 0.96;
}

.hero-copy h1 {
  font-size: clamp(3rem, 7vw, 5.6rem);
}

.lede,
.hero-note,
.topic-card p,
.entry-card p {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
}

.lede {
  max-width: 48rem;
  margin-top: 1rem;
}

.hero-note {
  max-width: 44rem;
  margin-top: 1rem;
}

.hero-details {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem 1.5rem;
  margin: 1.75rem 0 0;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
}

.hero-details dd {
  margin: 0.25rem 0 0;
  font-size: 1rem;
}

.profile-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.profile-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.6rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.6);
  color: var(--muted);
  font-size: 0.93rem;
  font-weight: 700;
}

.profile-link svg {
  width: 1.05rem;
  height: 1.05rem;
  fill: currentColor;
}

.profile-photo {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 5;
  border-radius: calc(var(--radius-xl) - 10px);
  object-fit: cover;
  object-position: center 18%;
}

.section-block + .section-block {
  margin-top: 1.5rem;
}

.section-heading {
  margin-bottom: 1.2rem;
}

.section-heading h2 {
  font-size: clamp(1.9rem, 4vw, 3rem);
}

.topic-grid,
.software-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.topic-card,
.entry-card,
.project-column {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: #fbfdff;
}

.topic-card,
.entry-card {
  padding: 1.15rem;
}

.topic-card h3,
.entry-card h3 {
  margin: 0 0 0.6rem;
  font-size: 1.05rem;
  line-height: 1.35;
}

.project-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(260px, 0.9fr);
  gap: 1rem;
}

.project-column {
  padding: 1rem;
}

.group-title {
  margin-bottom: 0.9rem;
}

.entry-card + .entry-card {
  margin-top: 0.9rem;
}

.project-link {
  display: inline-flex;
  align-items: center;
  margin-top: 0.85rem;
  font-size: 0.93rem;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

@media (max-width: 960px) {
  .hero,
  .project-layout,
  .topic-grid,
  .software-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .page-shell {
    width: min(calc(100% - 1rem), var(--content-width));
    padding-top: 0.75rem;
  }

  .site-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-copy,
  .section-block {
    padding: 1.3rem;
  }

  .hero-photo-card {
    padding: 0.75rem;
  }

  .hero-details {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}