:root {
  --bg: #0f1115;
  --fg: #e6e6e6;
  --muted: #9aa0a6;
  --accent: #4f8cff;
  --border: #2a2f36;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #ffffff;
    --fg: #1b1f24;
    --muted: #55595f;
    --accent: #1550c8;
    --border: #d7dbe0;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
}

.hero {
  text-align: center;
  padding: 6rem 1rem 4rem;
}

.hero h1 {
  margin: 0;
  font-size: 3rem;
}

.tagline {
  color: var(--muted);
  margin: 0.5rem 0 2rem;
}

nav a {
  color: var(--accent);
  text-decoration: none;
  margin: 0 0.75rem;
}

main {
  max-width: 48rem;
  margin: 0 auto;
  padding: 0 1rem 4rem;
}

.project-list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
}

.project {
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 1rem 1.25rem;
}

.project h3 {
  margin-top: 0;
}

.project h3 a {
  color: var(--accent);
  text-decoration: none;
}

.project h3 a:hover,
.project h3 a:focus-visible {
  text-decoration: underline;
}

.contact {
  text-align: center;
}

.button {
  display: inline-block;
  padding: 0.6rem 1.2rem;
  border: 1px solid var(--accent);
  border-radius: 0.375rem;
  color: var(--accent);
  text-decoration: none;
}

footer {
  text-align: center;
  color: var(--muted);
  padding-bottom: 2rem;
}