@font-face {
  font-family: "Newsreader";
  src: url("/fonts/newsreader-italic.woff2") format("woff2");
  font-style: italic; font-weight: 200 800; font-display: swap;
}
@font-face {
  font-family: "Newsreader";
  src: url("/fonts/newsreader.woff2") format("woff2");
  font-style: normal; font-weight: 200 800; font-display: swap;
}
@font-face {
  font-family: "JetBrains Mono";
  src: url("/fonts/jetbrains-mono.woff2") format("woff2");
  font-style: normal; font-weight: 100 800; font-display: swap;
}

:root {
  --bg: #000;
  --panel: #131417;
  --panel-2: #1c1d21;
  --line: #2b2d32;
  --text: #f3f4f4;
  --muted: #9b9fa4;
  --dim: #5c6066;
  --accent: #3b68f5;        /* features the instrument doesn't have */
  --level: #6fdc3c;         /* level meters, as in the mixer */
  --serif: "Newsreader", "Libre Caslon Text", Georgia, serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 400 17px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}
[hidden] { display: none !important; }
a { color: var(--text); text-decoration-color: var(--accent); text-underline-offset: 3px; }
a:hover { color: #fff; text-decoration-thickness: 2px; }
button { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

main, .top, .foot { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* ---------- header ---------- */
.top { display: flex; align-items: center; justify-content: space-between; padding-top: 28px; }
.brand { display: flex; align-items: center; gap: 14px; text-decoration: none; }
.mark { width: 92px; height: auto; display: block; }
.wordmark { display: flex; flex-direction: column; line-height: 1; }
.w1 { font: italic 400 30px/1 var(--serif); letter-spacing: .005em; }
.w2 { font: 400 13px/1 var(--mono); color: #b3b3b3; margin-top: 5px; letter-spacing: .08em; }

.lang { display: flex; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.lang button {
  background: none; border: 0; padding: 7px 12px; cursor: pointer;
  font: 500 13px/1 var(--mono); color: var(--muted);
}
.lang button[aria-pressed="true"] { background: var(--text); color: #000; }

/* ---------- hero ---------- */
.hero { padding: 88px 0 48px; max-width: 820px; }
.eyebrow { font: 500 13px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin: 0 0 22px; }
h1 { font: 400 clamp(40px, 6.4vw, 72px)/1.04 var(--serif); letter-spacing: -.015em; margin: 0 0 26px; text-wrap: balance; }
h1 em { font-style: italic; }
.lead { font-size: 19px; color: #c9cccf; margin: 0; max-width: 640px; }

/* ---------- demo (mixer) ---------- */
.demo {
  background: var(--panel); border: 1px solid var(--line); border-radius: 14px;
  overflow: hidden; margin-bottom: 96px;
}
.demo-head, .demo-foot {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px 18px; flex-wrap: wrap;
}
.demo-head { border-bottom: 1px solid var(--line); }
.demo-foot { border-top: 1px solid var(--line); }
.demo-title { font: 500 15px/1 var(--sans); background: var(--text); color: #000; padding: 8px 14px; border-radius: 6px; }
.demo-note { font: 500 12px/1 var(--mono); color: var(--muted); display: flex; align-items: center; gap: 8px; opacity: .35; transition: opacity .3s; }
.demo-note.lit { opacity: 1; color: var(--text); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px var(--accent); }
.demo-hint { font-size: 14px; color: var(--muted); }

.strips { display: grid; grid-template-columns: repeat(8, minmax(84px, 1fr)); overflow-x: auto; }
.strip { border-right: 1px solid var(--line); padding: 14px 8px 18px; text-align: center; position: relative; }
.strip:last-child { border-right: 0; }
.strip::after { content: ""; position: absolute; inset: 0; border: 2px solid var(--accent); opacity: 0; pointer-events: none; transition: opacity .6s; }
.strip.changed::after { opacity: 1; transition: none; }
.part { font: 500 13px/1.2 var(--sans); color: var(--muted); }
.voice {
  margin: 10px auto 0; font: 400 12px/1.25 var(--mono); color: var(--text);
  min-height: 2.5em; display: flex; align-items: center; justify-content: center;
}
.strip.off .voice { color: var(--dim); }
.fader { position: relative; height: 170px; width: 46px; margin: 14px auto 0; }
.fader .rail { position: absolute; left: 50%; top: 0; bottom: 0; width: 3px; transform: translateX(-50%); background: #2a2c30; border-radius: 2px; }
.fader .fill { position: absolute; left: 50%; bottom: 0; width: 3px; transform: translateX(-50%); background: var(--level); border-radius: 2px; transition: height .45s cubic-bezier(.3,.7,.2,1); }
.fader .cap {
  position: absolute; left: 50%; width: 40px; height: 26px; margin-left: -20px; margin-bottom: -13px;
  background: #1a1b1e; border: 2px solid #9a9da2; border-radius: 6px;
  transition: bottom .45s cubic-bezier(.3,.7,.2,1);
}
.fader .cap::before { content: ""; position: absolute; left: 6px; right: 6px; top: 50%; height: 2px; margin-top: -1px; background: #d9dbdd; }

.vars { display: flex; gap: 8px; }
.vars button {
  width: 52px; height: 44px; border-radius: 8px; cursor: pointer;
  background: var(--panel-2); border: 1px solid var(--line); font: 500 18px/1 var(--sans);
}
.vars button:hover { border-color: #4a4d53; }
.vars button.on { background: var(--text); color: #000; border-color: var(--text); }

/* ---------- features ---------- */
.features { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; margin-bottom: 96px; }
.features article { background: var(--bg); padding: 32px 30px 34px; }
.features h2 { font: 400 26px/1.2 var(--serif); margin: 0 0 12px; }
.features p { margin: 0; color: #b9bdc1; }
.tag {
  display: inline-block; vertical-align: 4px; margin-right: 10px;
  font: 500 11px/1 var(--mono); letter-spacing: .06em; text-transform: uppercase;
  color: #fff; background: var(--accent); padding: 5px 7px; border-radius: 4px;
}

/* ---------- roadmap ---------- */
.next { margin-bottom: 96px; max-width: 760px; }
.next h2, .cta h2 { font: italic 400 34px/1.15 var(--serif); margin: 0 0 20px; }
.next ul { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.next li { padding: 14px 0 14px 34px; border-bottom: 1px solid var(--line); position: relative; color: #c9cccf; }
.next li::before { content: "#"; position: absolute; left: 4px; font: 500 15px/1.6 var(--mono); color: var(--dim); }

/* ---------- CTA ---------- */
.cta { padding: 56px 0 64px; border-top: 1px solid var(--line); }
.cta h2 { font-style: normal; }
.cta p { margin: 0; font-size: 18px; color: #c9cccf; }
.cta a { font-family: var(--mono); font-size: 16px; }

/* ---------- footer ---------- */
.foot { padding-bottom: 48px; font-size: 13px; color: var(--dim); }
.foot p { margin: 0 0 6px; max-width: 760px; }
.copy { font-family: var(--mono); }

/* ---------- 404 ---------- */
.nf { padding: 120px 0; }
.nf h1 { margin-bottom: 14px; }

@media (max-width: 760px) {
  main, .top, .foot { padding: 0 16px; }
  .top { padding-top: 20px; }
  .mark { width: 68px; }
  .w1 { font-size: 24px; }
  .w2 { font-size: 11px; }
  .hero { padding: 56px 0 36px; }
  .lead { font-size: 17px; }
  .features { grid-template-columns: 1fr; }
  .features article { padding: 26px 20px; }
  .demo, .features, .next { margin-bottom: 64px; }
  .fader { height: 130px; }
  .vars button { width: 46px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}