/* PianoPrompt static site — dependency-light, matches the app's dark tone. */
:root {
  --bg: #0a0a0b;
  --fg: #fafafa;
  --muted: #a1a1aa;
  --border: #27272a;
  --card: #131316;
  --primary: #e4b45c;
  --primary-fg: #1c1917;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
main { max-width: 48rem; margin: 0 auto; padding: 4rem 1.5rem; display: grid; gap: 4rem; }
nav { display: flex; align-items: center; justify-content: space-between; }
.brand { font-weight: 700; letter-spacing: -0.01em; }
h1 { font-size: clamp(2rem, 5vw, 3rem); line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 1rem; }
h2 { font-size: 1.5rem; letter-spacing: -0.01em; margin: 0 0 0.5rem; }
p { margin: 0 0 1rem; }
.sub { font-size: 1.125rem; color: var(--muted); max-width: 36rem; }
section p:last-child { margin-bottom: 0; }
section .body { color: var(--muted); max-width: 36rem; }
.button {
  display: inline-block; border-radius: 0.375rem; padding: 0.6rem 1.25rem;
  font-size: 0.9rem; font-weight: 500; text-decoration: none; transition: opacity 0.15s, background 0.15s;
}
.button.primary { background: var(--primary); color: var(--primary-fg); }
.button.primary:hover { opacity: 0.9; }
.button.ghost { border: 1px solid var(--border); background: var(--card); color: var(--fg); padding: 0.4rem 0.9rem; }
.button.ghost:hover { background: var(--border); }
footer {
  border-top: 1px solid var(--border); padding-top: 1.5rem;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.5rem;
  font-size: 0.875rem; color: var(--muted);
}
footer a { color: var(--muted); }
footer a:hover { color: var(--fg); }
.card { border: 1px solid var(--border); background: var(--card); border-radius: 0.5rem; padding: 1.25rem 1.5rem; }
code { background: var(--card); border: 1px solid var(--border); border-radius: 0.25rem; padding: 0.1rem 0.35rem; font-size: 0.875em; }
ul { color: var(--muted); padding-left: 1.25rem; }