:root {
  --bg: #f4f7fb;
  --surface: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --accent: #0ea5e9;
  --accent-dark: #0284c7;
  --border: #dbe3ee;
  --focus: #0369a1;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "IBM Plex Sans", "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 20% 10%, #dbeafe 0%, transparent 40%),
    radial-gradient(circle at 80% 5%, #cffafe 0%, transparent 30%),
    var(--bg);
  line-height: 1.6;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  background: var(--text);
  color: #fff;
  padding: 0.5rem 0.8rem;
  border-radius: 0.45rem;
  text-decoration: none;
  z-index: 100;
}

.skip-link:focus-visible {
  top: 1rem;
}

.site-header,
.hero,
main,
footer {
  width: min(100% - 2rem, 860px);
  margin-inline: auto;
}

.site-header {
  padding: 1rem 0 0;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.site-nav a {
  text-decoration: none;
  color: var(--text);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.35rem 0.7rem;
  font-weight: 600;
}

.site-nav a[aria-current="page"] {
  background: #dbeafe;
  border-color: #93c5fd;
}

.hero {
  padding: 2.25rem 0 2rem;
}

.eyebrow {
  color: var(--accent-dark);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0 0 0.75rem;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.1;
}

.lead {
  max-width: 65ch;
  color: var(--muted);
  font-size: clamp(1rem, 2.5vw, 1.25rem);
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.button {
  display: inline-block;
  padding: 0.65rem 1rem;
  border-radius: 0.6rem;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
}

.button.secondary {
  background: #e2e8f0;
  color: var(--text);
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

main {
  display: grid;
  gap: 1rem;
  padding: 1rem 0 3rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0.9rem;
  padding: 1.1rem 1.2rem;
}

.project-meta {
  color: var(--muted);
  font-size: 0.92rem;
  margin: 0.25rem 0 0.75rem;
}

.text-link {
  font-weight: 600;
}

.project-cover {
  margin: 0;
  max-width: 760px;
  margin-inline: auto;
}

.project-cover img {
  width: 100%;
  height: auto;
  max-height: 380px;
  object-fit: cover;
  border-radius: 0.75rem;
  border: 1px solid var(--border);
  display: block;
}

.project-cover figcaption {
  margin-top: 0.45rem;
  color: var(--muted);
  font-size: 0.9rem;
}

h2 {
  margin: 0 0 0.5rem;
  font-size: 1.35rem;
}

ul {
  margin: 0.5rem 0 0;
  padding-left: 1.1rem;
}

footer {
  color: var(--muted);
  border-top: 1px solid var(--border);
  padding: 1rem 0 2rem;
}

@media (max-width: 600px) {
  .hero {
    padding-top: 1.5rem;
  }
}