/* mindfret.com — the palette is the app's own (Fretboard.tsx, assets/icon-source/gen.mjs).
   Dark only, deliberately: the product is a dark neck and the site should not disown it. */

:root {
  --bg: #101214;
  --board: #1b1d1f;
  --line: #2a2f33;
  --ink: #e8eef0;
  --muted: #99a3a9;
  --green: #1ea84e;
  --amber: #e8a020;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 41rem;
  margin: 0 auto;
  padding: 2rem 1.25rem 5rem;
}

/* ---- header ------------------------------------------------------------ */

header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 1.1rem;
  padding-bottom: 1.5rem;
  margin-bottom: 2.25rem;
  border-bottom: 1px solid var(--line);
}

.brand {
  font-size: 1.05rem;
  font-weight: 650;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-decoration: none;
}

.brand .dot {
  display: inline-block;
  width: 0.5rem;
  height: 0.5rem;
  margin-right: 0.45rem;
  border-radius: 50%;
  background: var(--green);
  vertical-align: 0.02em;
}

nav { margin-left: auto; display: flex; gap: 1.1rem; }

nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
}

nav a:hover, nav a[aria-current="page"] { color: var(--ink); }

/* ---- type -------------------------------------------------------------- */

h1 {
  font-size: 1.9rem;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 0.4rem;
}

h2 {
  font-size: 1.08rem;
  letter-spacing: -0.005em;
  margin: 2.6rem 0 0.7rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--line);
}

h2:first-of-type { border-top: 0; padding-top: 0; }

h3 {
  font-size: 0.98rem;
  margin: 1.6rem 0 0.4rem;
  color: var(--ink);
}

p, li { color: #cdd6da; }

a { color: var(--ink); text-decoration-color: var(--muted); text-underline-offset: 0.15em; }
a:hover { text-decoration-color: var(--green); }

.lede { font-size: 1.08rem; color: var(--muted); margin: 0 0 2rem; }

.stamp {
  font-size: 0.82rem;
  color: var(--muted);
  margin: 0 0 2.5rem;
}

ul { padding-left: 1.15rem; }
li { margin: 0.3rem 0; }

/* ---- summary card ------------------------------------------------------ */

.card {
  background: var(--board);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1.1rem 1.25rem;
  margin: 0 0 2.5rem;
}

.card h2 { border: 0; padding: 0; margin: 0 0 0.6rem; font-size: 0.78rem; letter-spacing: 0.09em; text-transform: uppercase; color: var(--muted); }
.card ul { margin: 0; }
.card li { margin: 0.42rem 0; }

/* ---- home -------------------------------------------------------------- */

.tracks {
  list-style: none;
  padding: 0;
  margin: 2rem 0;
  display: grid;
  gap: 0.75rem;
}

.tracks li {
  background: var(--board);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.85rem 1rem;
  margin: 0;
}

.tracks b { display: block; color: var(--ink); font-weight: 620; }
.tracks span { color: var(--muted); }

/* the heat ramp, as a rule rather than an illustration. The six colours are the app's own
   (Fretboard.tsx BANDS) and live here, not in style="" — the CSP in _headers blocks inline styles. */
.ramp {
  display: flex;
  height: 4px;
  border-radius: 2px;
  overflow: hidden;
  margin: 2.5rem 0;
}
.ramp i { flex: 1; }
.ramp i:nth-child(1) { background: #7d1f14; }
.ramp i:nth-child(2) { background: #b3311b; }
.ramp i:nth-child(3) { background: #d96a1a; }
.ramp i:nth-child(4) { background: #e8a020; }
.ramp i:nth-child(5) { background: #f2d43a; }
.ramp i:nth-child(6) { background: #1ea84e; }

footer {
  margin-top: 4rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--line);
  font-size: 0.86rem;
  color: var(--muted);
}

footer a { color: var(--muted); }

@media (max-width: 30rem) {
  h1 { font-size: 1.6rem; }
  nav { margin-left: 0; width: 100%; }
}