:root {
  --bg: #1b1f23;
  --panel: #23282e;
  --text: #d7dce1;
  --muted: #8b949e;
  --accent: #d9a441;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1.6;
}

header, main, footer {
  max-width: 42rem;
  margin: 0 auto;
  padding: 0 1.25rem;
}

header {
  padding-top: 4rem;
  padding-bottom: 1rem;
}

h1 {
  font-size: 3rem;
  margin: 0;
  letter-spacing: 0.02em;
}

.tagline {
  color: var(--accent);
  font-size: 1.25rem;
  font-style: italic;
  margin-top: 0.25rem;
}

h2 {
  font-size: 1.2rem;
  color: var(--accent);
  margin-top: 2.5rem;
  margin-bottom: 0.5rem;
}

section ul {
  padding-left: 1.2rem;
}

li { margin-bottom: 0.5rem; }

a { color: var(--accent); }

.hero {
  display: block;
  width: 100%;
  max-width: 30rem;
  height: auto;
  margin: 0.5rem auto;
}

.demo {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 8px;
  margin: 1.5rem 0 0.5rem;
}

.caption {
  color: var(--muted);
  font-size: 0.9rem;
  font-style: italic;
  margin-top: 0.25rem;
}

.download-button {
  display: inline-block;
  background: var(--accent);
  color: var(--bg);
  font-weight: bold;
  text-decoration: none;
  padding: 0.7rem 1.4rem;
  border-radius: 6px;
}

.download-button:hover { filter: brightness(1.1); }

.download-meta {
  display: block;
  margin-top: 0.5rem;
  color: var(--muted);
  font-size: 0.9rem;
}

code {
  font-family: Consolas, monospace;
  background: var(--panel);
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  font-size: 0.9em;
}

footer {
  margin-top: 4rem;
  padding-top: 1rem;
  padding-bottom: 2rem;
  border-top: 1px solid var(--panel);
  color: var(--muted);
  font-size: 0.9rem;
}