/* hypernova site. light, quiet, specific. one accent colour. */
:root {
  --bg: #f2f1ee;
  --card: #ffffff;
  --ink: #111111;
  --ink-2: #4a4a4a;
  --ink-3: #8b8b88;
  --rule: #d9d8d3;
  --accent: #ff5a1f;
  --mono: "Space Mono", ui-monospace, Menlo, monospace;
  --sans: "Space Grotesk", ui-sans-serif, -apple-system, "Helvetica Neue", sans-serif;
  --gutter: 16px;
  --max: 1180px;
}
@media (min-width: 720px) { :root { --gutter: 40px; } }

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 17px/1.55 var(--sans);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--accent); }
strong { font-weight: 700; }
code { font-family: var(--mono); font-size: 0.9em; }

.skip { position: absolute; left: -9999px; }
.skip:focus { left: var(--gutter); top: 8px; background: var(--ink); color: var(--bg); padding: 6px 10px; z-index: 10; }

/* header */
.top {
  position: sticky; top: 0; z-index: 5;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px var(--gutter);
  background: rgba(242, 241, 238, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--rule);
}
.brand { font: 700 18px/1 var(--sans); letter-spacing: -0.02em; text-decoration: none; }
.brand::before { content: ""; display: inline-block; width: 26px; height: 16px; background: url("assets/mark.svg") center / contain no-repeat; margin-right: 6px; vertical-align: -2px; }
.nav { display: flex; gap: 18px; font: 400 13px/1 var(--mono); overflow-x: auto; }
.nav a { text-decoration: none; color: var(--ink-2); white-space: nowrap; }
.nav a:hover { color: var(--accent); }
@media (max-width: 640px) { .nav a:not([href="#packs"]):not([href="#changelog"]) { display: none; } }

main { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }

/* hero */
.hero { padding: 72px 0 40px; }
.hero h1 { font: 700 clamp(56px, 12vw, 148px)/0.9 var(--sans); letter-spacing: -0.06em; margin: 0 0 20px; }
.tagline { font-size: clamp(19px, 2.4vw, 26px); line-height: 1.35; max-width: 40rem; margin: 0 0 32px; color: var(--ink-2); }
.cta { display: flex; flex-direction: column; align-items: flex-start; gap: 10px; margin-bottom: 48px; }
.download {
  display: inline-block;
  background: var(--ink); color: var(--bg);
  font: 700 18px/1 var(--mono); text-transform: lowercase;
  padding: 20px 34px; border-radius: 999px; text-decoration: none;
  transition: background 0.15s ease;
}
.download::after { content: " \2193"; }
.download:hover, .download:focus-visible { background: var(--accent); color: var(--ink); }
.release-meta { margin: 0; font: 400 13px/1.4 var(--mono); color: var(--ink-2); }
.release-meta .sep { color: var(--ink-3); margin: 0 0.6em; }
.release-meta .ver { color: var(--ink); font-weight: 700; }
.compat { margin: 0; font: 400 11px/1.5 var(--mono); letter-spacing: 0.06em; color: var(--ink-3); }
.hero-shot {
  margin: 0; border-radius: 14px; overflow: hidden; background: var(--card); border: 1px solid var(--rule);
  box-shadow: 0 50px 80px -40px rgba(0, 0, 0, 0.45), 0 2px 0 rgba(255, 255, 255, 0.9) inset;
  transform: perspective(1600px) rotateX(8deg); transform-origin: 50% 80%;
  transition: transform 0.25s ease-out; will-change: transform;
}
@media (prefers-reduced-motion: reduce) { .hero-shot { transform: none; transition: none; } }

/* sections */
.section { padding: 64px 0; border-top: 1px solid var(--rule); }
.section h2 { font: 700 clamp(30px, 4.6vw, 52px)/1 var(--sans); letter-spacing: -0.04em; margin: 0 0 24px; }
.intro p { font-size: clamp(18px, 2vw, 22px); line-height: 1.5; max-width: 46rem; color: var(--ink-2); margin: 0 0 16px; }
.lede { max-width: 42rem; color: var(--ink-2); margin: 0 0 28px; }
.muted { color: var(--ink-3); }
.fineprint { font: 400 13px/1.5 var(--mono); color: var(--ink-3); max-width: 42rem; margin-top: 24px; }

/* specs: the long list, in capitals, like a data sheet */
.spec-grid { display: grid; gap: 28px 40px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.spec-grid h3 { font: 700 13px/1 var(--mono); text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); margin: 0 0 12px; }
.spec { list-style: none; margin: 0; padding: 0; }
.spec li { font: 400 12.5px/1.4 var(--mono); letter-spacing: 0.02em; padding: 8px 0; border-bottom: 1px solid var(--rule); }

/* screenshots */
.shots { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.shot { margin: 0; }
.shot img { border-radius: 10px; border: 1px solid var(--rule); background: var(--card); }
.shot figcaption { font: 700 11px/1 var(--mono); letter-spacing: 0.1em; margin-top: 10px; color: var(--ink-2); }

/* sound packs */
.packs { display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.pack { background: var(--card); border: 1px solid var(--rule); border-radius: 12px; padding: 18px 20px; display: flex; flex-direction: column; gap: 10px; }
.pack h3 { margin: 0; font: 700 20px/1.1 var(--sans); letter-spacing: -0.02em; }
.pack .notes p { margin: 0 0 6px; color: var(--ink-2); font-size: 15px; }
.pack-foot { margin-top: auto; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; font: 400 12px/1 var(--mono); }
.pack-download { background: var(--ink); color: var(--bg); padding: 10px 16px; border-radius: 999px; text-decoration: none; font: 700 13px/1 var(--mono); }
.pack-download:hover { background: var(--accent); color: var(--ink); }

/* install */
.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; }
.steps li { display: grid; grid-template-columns: 56px 1fr; gap: 12px; padding: 18px 0; border-bottom: 1px solid var(--rule); }
.steps .n { font: 700 14px/1.6 var(--mono); color: var(--accent); }
.steps p { margin: 0; font-size: 18px; }

/* changelog */
.releases { display: grid; gap: 0; }
.release { padding: 24px 0; border-bottom: 1px solid var(--rule); }
.release-head { display: flex; align-items: baseline; flex-wrap: wrap; gap: 8px 14px; margin-bottom: 10px; }
.release-head h3 { margin: 0; font: 700 22px/1 var(--sans); letter-spacing: -0.02em; }
.release-head time { font: 400 12px/1 var(--mono); color: var(--ink-3); }
.badge { font: 700 10px/1 var(--mono); text-transform: uppercase; letter-spacing: 0.08em; background: var(--accent); color: var(--ink); padding: 4px 7px; border-radius: 4px; }
.badge.pre { background: var(--rule); }
.release-head .links { margin-left: auto; font: 400 13px/1 var(--mono); }
.notes { color: var(--ink-2); max-width: 48rem; }
.notes > :first-child { margin-top: 0; }
.notes > :last-child { margin-bottom: 0; }
.notes p { margin: 0 0 12px; }
.notes h1, .notes h2, .notes h3, .notes h4 { font: 700 15px/1.3 var(--mono); color: var(--ink); margin: 18px 0 8px; text-transform: lowercase; }
.notes ul, .notes ol { margin: 0 0 12px; padding-left: 1.2em; }
.notes li { margin: 6px 0; }
.notes li::marker { color: var(--accent); }
.notes strong { color: var(--ink); }
.older-title { font: 700 12px/1 var(--mono); text-transform: uppercase; letter-spacing: 0.08em; color: var(--ink-3); margin: 28px 0 0; }
details.release summary { cursor: pointer; list-style: none; }
details.release summary::-webkit-details-marker { display: none; }
details.release summary .release-head { margin-bottom: 0; }
details.release summary .release-head::after { content: "+"; margin-left: auto; font: 400 20px/1 var(--mono); color: var(--ink-3); }
details.release[open] summary .release-head::after { content: "\2212"; }
details.release[open] .notes { margin-top: 12px; }

/* footer */
.foot { max-width: var(--max); margin: 0 auto; padding: 40px var(--gutter) 60px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font: 400 12px/1 var(--mono); color: var(--ink-3); border-top: 1px solid var(--rule); }
.foot p { margin: 0; }

/* ---------------- play it here ---------------- */
.rig { background: var(--card); border: 1px solid var(--rule); border-radius: 16px; padding: 18px; display: grid; gap: 16px;
       box-shadow: 0 40px 70px -45px rgba(0, 0, 0, 0.4); }
.wt3d { width: 100%; height: clamp(240px, 42vw, 440px); display: block; cursor: grab; touch-action: none; border-radius: 10px;
        background: linear-gradient(#fbfaf8, #f2f1ee); }
.wt3d:active { cursor: grabbing; }
.controls { display: flex; flex-wrap: wrap; gap: 14px 24px; align-items: center; }
.tables { display: flex; gap: 6px; flex-wrap: wrap; }
.tables button { font: 700 12px/1 var(--mono); padding: 9px 12px; border-radius: 999px; border: 1px solid var(--rule); background: var(--bg); color: var(--ink); cursor: pointer; }
.tables button[aria-pressed="true"] { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.slider { display: flex; align-items: center; gap: 10px; font: 700 11px/1 var(--mono); letter-spacing: 0.08em; color: var(--ink-2); }
.slider input { width: 160px; accent-color: var(--accent); }
.keys { position: relative; display: grid; grid-template-columns: repeat(8, 1fr); height: 150px; user-select: none; }
.key { border: 1px solid var(--rule); cursor: pointer; font: 700 11px/1 var(--mono); color: var(--ink-3); display: flex; align-items: flex-end; justify-content: center; padding-bottom: 10px; }
.key.white { background: linear-gradient(#ffffff, #f4f3f0); border-radius: 0 0 8px 8px; box-shadow: 0 3px 0 #d9d8d3; }
.key.white.down { transform: translateY(2px); box-shadow: 0 1px 0 #d9d8d3; background: #ffe3d6; }
.key.black { position: absolute; top: 0; width: calc(100% / 8 * 0.6); height: 60%; left: calc(100% / 8 * (var(--i) + 1) - 100% / 8 * 0.3);
             background: linear-gradient(#2b2b2b, #111); color: #8b8b88; border-color: #000; border-radius: 0 0 6px 6px; box-shadow: 0 4px 0 #000; z-index: 1; }
.key.black.down { transform: translateY(2px); box-shadow: 0 2px 0 #000; background: var(--accent); color: var(--ink); }
@media (max-width: 520px) { .key span { display: none; } .slider input { width: 120px; } }