:root {
  --bg: #f5f7f6;
  --surface: #ffffff;
  --surface-alt: #eef4f1;
  --text: #10221c;
  --muted: #4b5e57;
  --border: #d4e1dc;
  --brand: #2ead33;
  --brand-deep: #157a22;
  --radius: 14px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at 80% 0%, #e2f5e4, transparent 32%), var(--bg);
  line-height: 1.55;
}

.hero,
.content,
footer {
  width: min(980px, 92vw);
  margin: 0 auto;
}

.hero {
  padding: 3.2rem 0 2.2rem;
  text-align: center;
}

h1 {
  margin: 0.6rem 0 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  font-size: clamp(1.7rem, 3vw, 2.4rem);
}

.lead {
  margin: 1rem 0 0;
  max-width: 70ch;
  margin-left: auto;
  margin-right: auto;
  color: var(--muted);
}

.content {
  display: grid;
  gap: 1.15rem;
  padding-bottom: 2rem;
}

section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.15rem;
}

h2 {
  margin: 0 0 0.75rem;
  font-size: 1.25rem;
}

h3 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
}

.section-note {
  margin-top: 0;
  color: var(--muted);
}

.grid {
  display: grid;
  gap: 0.85rem;
}

.two-up {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.8rem 0.9rem;
}

.card ul {
  margin: 0;
  padding-left: 1rem;
}

.tree,
.commands {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: "IBM Plex Mono", Menlo, monospace;
  font-size: 0.86rem;
  background: #0f1a16;
  color: #e9f6ef;
  border-radius: 10px;
  padding: 0.85rem;
}

.gallery {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

figure {
  margin: 0;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  background: var(--surface-alt);
}

figure img {
  display: block;
  width: 100%;
  height: 190px;
  object-fit: cover;
}

figcaption {
  padding: 0.5rem 0.65rem;
  font-size: 0.84rem;
  color: var(--muted);
}

.clip {
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #000;
}

.repo-link {
  margin: 0.8rem 0 0;
  font-size: 0.92rem;
  color: var(--muted);
}

.repo-button {
  display: inline-block;
  padding: 0.52rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--brand-deep);
  background: #ecf8ef;
  color: var(--brand-deep);
  font-weight: 600;
  text-decoration: none;
  transition: background-color 120ms ease, color 120ms ease;
}

.repo-button + .repo-button {
  margin-left: 0.6rem;
}

.repo-button:hover {
  background: var(--brand-deep);
  color: #ffffff;
}

footer {
  border-top: 1px solid var(--border);
  padding: 1rem 0 2rem;
  color: var(--muted);
  font-size: 0.88rem;
}

@media (max-width: 760px) {
  .hero {
    padding-top: 2.4rem;
  }

  .two-up,
  .gallery {
    grid-template-columns: 1fr;
  }

  figure img {
    height: 210px;
  }
}