Concept D - Music Release Microsite

:root {
  --bg: #09060e;
  --text: #f8f4ff;
  --muted: #cfc4dc;
  --line: #4a385d;
  --accent: #ff8f66;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--text);
  font-family: "Courier New", Courier, monospace;
  background: radial-gradient(circle at 20% 20%, rgba(255, 143, 102, 0.2), transparent 38%),
    radial-gradient(circle at 82% 76%, rgba(126, 122, 255, 0.2), transparent 40%), var(--bg);
}

.topbar {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 30;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.8rem 1rem;
  background: rgba(9, 6, 14, 0.62);
  backdrop-filter: blur(8px);
}

.topbar a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 700;
}

.toggle {
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  color: var(--text);
  padding: 0.35rem 0.7rem;
  cursor: pointer;
  font-family: inherit;
}

main {
  width: min(1080px, 94%);
  margin: 0 auto;
  padding-top: 3.7rem;
}

.hero {
  min-height: 95vh;
  display: grid;
  align-content: center;
  gap: 0.7rem;
}

.kicker {
  margin: 0;
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.8rem;
}

h1 {
  margin: 0;
  font-size: clamp(2.5rem, 10vw, 7rem);
  line-height: 0.9;
}

.subtitle {
  margin: 0;
  color: var(--muted);
  max-width: 58ch;
}

.player {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 1rem;
}

.disc-wrap {
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.03);
  display: grid;
  place-items: center;
}

.disc {
  width: 250px;
  height: 250px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: radial-gradient(circle at center, #191420 0 16%, #0f0b14 16% 20%, transparent 20%),
    repeating-radial-gradient(circle at center, #1d1828 0 4px, #0f0b15 4px 8px);
  position: relative;
  animation: spin 8s linear infinite;
}

.disc::after {
  content: "";
  position: absolute;
  inset: 42%;
  border-radius: 50%;
  background: #d0a58f;
}

.tracklist {
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.03);
}

.tracklist h2 {
  margin: 0;
}

.tracklist ol {
  margin: 0.8rem 0 0;
  padding-left: 1.3rem;
  color: var(--muted);
  display: grid;
  gap: 0.45rem;
}

.bars {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(14, minmax(0, 1fr));
  gap: 0.3rem;
  align-items: end;
  height: 96px;
}

.bar {
  border-radius: 6px;
  background: linear-gradient(180deg, #ffa76f, #8c6cff);
  animation: bounce 1s ease-in-out infinite;
}

body.no-motion .disc,
body.no-motion .bar {
  animation: none;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@keyframes bounce {
  0%,
  100% {
    transform: scaleY(0.35);
  }
  50% {
    transform: scaleY(1);
  }
}

@media (max-width: 930px) {
  .player {
    grid-template-columns: 1fr;
  }
}

if (!window.MotionPreference) {
  const __mql = window.matchMedia("(prefers-reduced-motion: reduce)");
  const __listeners = new Set();

  const MotionPreference = {
    prefersReducedMotion() {
      return __mql.matches;
    },
    setOverride(value) {
      const reduced = Boolean(value);
      document.documentElement.classList.toggle("reduced-motion", reduced);
      window.dispatchEvent(new CustomEvent("motion-preference", { detail: { reduced } }));
      for (const listener of __listeners) {
        try {
          listener({ reduced, override: reduced, systemReduced: __mql.matches });
        } catch {}
      }
    },
    onChange(listener) {
      __listeners.add(listener);
      try {
        listener({
          reduced: __mql.matches,
          override: null,
          systemReduced: __mql.matches,
        });
      } catch {}
      return () => __listeners.delete(listener);
    },
    getState() {
      return { reduced: __mql.matches, override: null, systemReduced: __mql.matches };
    },
  };

  window.MotionPreference = MotionPreference;
}

const toggle = document.getElementById("motionToggle");
const bars = document.getElementById("bars");
let noMotion = window.MotionPreference.prefersReducedMotion();

for (let i = 0; i < 14; i += 1) {
  const bar = document.createElement("span");
  bar.className = "bar";
  bar.style.height = `${24 + Math.random() * 68}px`;
  bar.style.animationDelay = `${i * 0.06}s`;
  bars.appendChild(bar);
}

function applyMode() {
  document.body.classList.toggle("no-motion", noMotion);
  toggle.textContent = noMotion ? "Enable motion" : "Disable motion";
}

toggle.addEventListener("click", () => {
  noMotion = !noMotion;
  applyMode();
});

applyMode();

<!doctype html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Concept D - Music Release Microsite</title>
    <link rel="stylesheet" href="style.css" />
  </head>
  <body>
    <header class="topbar">
      <a href="../">Back to demos</a>
      <button id="motionToggle" class="toggle"></button>
    </header>

    <main>
      <section class="hero">
        <p class="kicker">Concept D</p>
        <h1>STATIC DREAMS</h1>
        <p class="subtitle">A release-night microsite concept with poster aesthetics and kinetic audio motifs.</p>

        <div class="player">
          <div class="disc-wrap" aria-hidden="true">
            <div class="disc" id="disc"></div>
          </div>

          <div class="tracklist">
            <h2>Tracklist</h2>
            <ol>
              <li>Midnight Signal</li>
              <li>Velvet Highway</li>
              <li>Echo Relay</li>
              <li>Afterimage</li>
              <li>Northbound Static</li>
            </ol>
            <div class="bars" id="bars"></div>
          </div>
        </div>
      </section>
    </main>

    <script src="script.js"></script>
      </body>
</html>