:root {
  --ink: #343637;
  --ink-2: #3e4142;
  --paper: #f3f1ee;
  --gold: #d2ba8a;
  --gold-deep: #765a32;
  --red: #b73b2f;
  --white: #faf8f4;
  --muted: #615f59;
  --line: rgba(11,13,16,.14);
  --mono: "Space Mono", monospace;
  --display: "Syne", sans-serif;
  --body: "DM Sans", sans-serif;
}

* { box-sizing: border-box; }
html { background: var(--ink); }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  -webkit-font-smoothing: antialiased;
}
button, input, select { font: inherit; }
button, a, input, select { -webkit-tap-highlight-color: transparent; }
a { color: inherit; text-decoration: none; }
[hidden] { display: none !important; }

.play-shell { min-height: 100vh; }
.play-nav {
  height: 76px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 clamp(20px, 5vw, 74px);
  border-bottom: 1px solid var(--line);
  background: rgba(243,241,238,.94);
  position: relative;
  z-index: 20;
}
.brand { justify-self: start; font: 800 17px/1 var(--display); letter-spacing: .15em; }
.brand span { color: var(--gold-deep); }
.play-product {
  display: flex;
  align-items: center;
  gap: 10px;
  font: 700 11px/1 var(--mono);
  letter-spacing: .17em;
}
.play-product i { width: 24px; height: 1px; background: var(--red); }
.play-product b { padding: 4px 6px; background: var(--red); color: var(--white); font-size: 11px; }
.back-link {
  justify-self: end;
  padding-bottom: 5px;
  border-bottom: 1px solid currentColor;
  font: 700 11px/1 var(--mono);
  text-transform: uppercase;
  letter-spacing: .08em;
}
.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--red);
  font: 700 11px/1 var(--mono);
  letter-spacing: .2em;
  text-transform: uppercase;
}
.eyebrow span { width: 30px; height: 1px; background: currentColor; }
.eyebrow.light { color: var(--gold); }

.song-picker {
  min-height: calc(100vh - 76px);
  display: grid;
  grid-template-columns: minmax(320px,.75fr) minmax(0,1.25fr);
  gap: clamp(50px,8vw,130px);
  align-items: center;
  padding: clamp(70px,8vw,120px) clamp(24px,7vw,108px);
}
.picker-copy h1 {
  margin: 28px 0 30px;
  font: 800 clamp(62px,9vw,132px)/.82 var(--display);
  letter-spacing: -.075em;
}
.picker-copy h1 em { color: var(--gold-deep); font-style: normal; }
.picker-copy > p { max-width: 520px; color: #4d4a44; font-size: 18px; line-height: 1.65; }
.outline-link {
  display: inline-grid;
  place-items: center;
  min-height: 49px;
  margin-top: 22px;
  padding: 0 19px;
  border: 1px solid var(--line);
  font: 700 11px/1 var(--mono);
  letter-spacing: .1em;
  text-transform: uppercase;
}
.picker-library { align-self: stretch; display: flex; flex-direction: column; justify-content: center; }
.picker-status { color: var(--muted); font: 700 11px/1.5 var(--mono); text-transform: uppercase; letter-spacing: .08em; }
.picker-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 12px; }
.picker-card {
  min-height: 210px;
  padding: 23px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.25);
  display: flex;
  flex-direction: column;
}
.picker-card small { color: var(--red); font: 700 11px/1 var(--mono); text-transform: uppercase; letter-spacing: .1em; }
.picker-card h2 { margin: 32px 0 10px; font: 800 28px/1 var(--display); letter-spacing: -.04em; overflow-wrap: anywhere; }
.picker-card p { margin: 0; color: var(--muted); font: 700 11px/1.5 var(--mono); text-transform: uppercase; }
.picker-card button {
  min-height: 46px;
  margin-top: auto;
  border: 0;
  background: var(--gold);
  color: var(--ink);
  cursor: pointer;
  font: 700 11px/1 var(--mono);
  text-transform: uppercase;
  letter-spacing: .1em;
}

.play-stage { min-height: calc(100vh - 76px); padding: 35px clamp(18px,4vw,64px) 40px; }
.song-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 30px;
  margin: 0 auto 28px;
  max-width: 1500px;
}
.change-song {
  border: 0;
  padding: 0;
  background: none;
  color: var(--red);
  cursor: pointer;
  font: 700 11px/1 var(--mono);
  text-transform: uppercase;
  letter-spacing: .1em;
}
.song-heading h1 {
  margin: 15px 0 8px;
  font: 800 clamp(36px,5vw,68px)/.95 var(--display);
  letter-spacing: -.055em;
  overflow-wrap: anywhere;
}
.song-heading p { display: flex; gap: 9px; margin: 0; color: var(--muted); font: 700 11px/1 var(--mono); text-transform: uppercase; }
.song-heading p i { font-style: normal; }
.fullscreen-button {
  min-height: 45px;
  padding: 0 16px;
  border: 1px solid var(--line);
  background: transparent;
  cursor: pointer;
  font: 700 11px/1 var(--mono);
  letter-spacing: .08em;
  text-transform: uppercase;
}

.visual-stage {
  position: relative;
  min-height: min(48vh,520px);
  max-width: 1500px;
  margin: auto;
  padding: clamp(42px,5vw,78px) clamp(24px,8vw,130px) 35px;
  overflow: hidden;
  background: var(--ink);
  color: var(--white);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.visual-stage::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg,transparent 49.9%,rgba(255,255,255,.035) 50%,transparent 50.1%);
  background-size: 110px 100%;
  pointer-events: none;
}
.lyric-frame { position: relative; z-index: 2; text-align: center; }
.lyric-frame p { margin-left: auto; margin-right: auto; max-width: 1150px; }
.previous-lyric, .next-lyric {
  min-height: 23px;
  color: #5e6268;
  font: 600 clamp(15px,1.5vw,21px)/1.35 var(--display);
}
.current-lyric {
  min-height: 2.4em;
  margin-top: 20px;
  margin-bottom: 20px;
  font: 800 clamp(34px,5.1vw,76px)/1.03 var(--display);
  letter-spacing: -.045em;
  text-wrap: balance;
}
.next-lyric { color: #74787f; }
.chord-runway {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(5,minmax(0,1fr));
  gap: 7px;
  margin-top: 34px;
}
.runway-chord {
  min-height: 75px;
  padding: 13px;
  border: 1px solid rgba(255,255,255,.1);
  color: #63676d;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.runway-chord strong { font: 800 clamp(18px,2vw,29px)/1 var(--display); }
.runway-chord span { font: 700 11px/1 var(--mono); }
.runway-chord.current {
  border-color: var(--gold);
  background: var(--gold);
  color: var(--ink);
  transform: translateY(-5px);
}
.beat-orbit { position: absolute; top: 20px; right: 24px; display: flex; gap: 6px; z-index: 3; }
.beat-orbit span { width: 5px; height: 5px; border-radius: 50%; background: #34373c; transition: .08s; }
.beat-orbit span.active { background: var(--gold); transform: scale(1.8); }

.piano-panel {
  max-width: 1500px;
  margin: 0 auto;
  background: var(--ink-2);
  color: var(--white);
  padding: 27px 30px 31px;
  display: grid;
  grid-template-columns: minmax(220px,.42fr) minmax(500px,1.58fr);
  gap: 42px;
  align-items: center;
  border-top: 1px solid rgba(255,255,255,.07);
}
.piano-copy h2 { margin: 14px 0 17px; font: 800 clamp(26px,3vw,42px)/1 var(--display); letter-spacing: -.04em; }
.piano-copy p { margin: 0; display: flex; align-items: baseline; gap: 12px; }
.piano-copy p span { color: #6b6f76; font: 700 11px/1 var(--mono); text-transform: uppercase; letter-spacing: .1em; }
.piano-copy p strong { color: var(--gold); font: 700 17px/1 var(--display); }
.keyboard-scroll { overflow-x: auto; scrollbar-width: thin; }
.piano-keyboard { position: relative; min-width: 700px; height: 150px; display: flex; background: #080a0d; border: 6px solid #080a0d; }
.white-key {
  position: relative;
  z-index: 1;
  flex: 1;
  border-right: 2px solid #17191d;
  border-radius: 0 0 4px 4px;
  background: #f5f1e8;
  transition: .12s;
}
.white-key:last-of-type { border-right: 0; }
.white-key span { position: absolute; left: 50%; bottom: 9px; transform: translateX(-50%); color: #74716a; font: 700 11px/1 var(--mono); }
.black-key {
  position: absolute;
  z-index: 2;
  top: 0;
  width: 4.8%;
  height: 61%;
  transform: translateX(-50%);
  border: 1px solid #30343a;
  border-radius: 0 0 4px 4px;
  background: #343637;
  box-shadow: 0 8px 8px rgba(0,0,0,.42);
  transition: .12s;
}
.black-key span { position: absolute; left: 50%; bottom: 7px; transform: translateX(-50%); color: #696d73; font: 700 11px/1 var(--mono); }
.white-key.active { background: var(--gold); box-shadow: inset 0 -9px 0 rgba(183,59,47,.23),0 0 22px rgba(201,168,76,.25); transform: translateY(3px); }
.white-key.active span { color: var(--ink); }
.black-key.active { background: var(--red); border-color: #d25c50; box-shadow: 0 7px 8px rgba(0,0,0,.45),0 0 18px rgba(183,59,47,.42); transform: translateX(-50%) translateY(3px); }
.black-key.active span { color: var(--white); }

.transport {
  max-width: 1500px;
  min-height: 84px;
  margin: 0 auto;
  padding: 13px 19px;
  display: grid;
  grid-template-columns: auto auto auto minmax(220px,1fr) auto auto auto;
  align-items: center;
  gap: 13px;
  border-top: 1px solid rgba(255,255,255,.08);
  background: #0d0f12;
  color: var(--white);
}
.main-play {
  width: 51px;
  height: 51px;
  border: 0;
  border-radius: 50%;
  background: var(--gold);
  cursor: pointer;
  display: grid;
  place-items: center;
}
.main-play span { width: 0; height: 0; margin-left: 4px; border-top: 7px solid transparent; border-bottom: 7px solid transparent; border-left: 11px solid var(--ink); }
.main-play.playing span { width: 12px; height: 14px; margin: 0; border: 0; border-left: 4px solid var(--ink); border-right: 4px solid var(--ink); }
.skip-button {
  width: 38px;
  height: 38px;
  border: 1px solid rgba(255,255,255,.12);
  background: #191c21;
  color: #a4a7ad;
  cursor: pointer;
  font: 700 11px/1 var(--mono);
}
.timeline-control { min-width: 0; }
.timeline-control > div { display: flex; justify-content: space-between; color: #777b82; font: 700 11px/1 var(--mono); }
.timeline-control > div span:first-child { color: var(--white); }
.timeline-control input { width: 100%; margin: 9px 0 0; accent-color: var(--gold); cursor: pointer; }
.select-control, .transpose-control {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #777b82;
  font: 700 11px/1 var(--mono);
  text-transform: uppercase;
  letter-spacing: .08em;
}
.select-control select { min-height: 34px; border: 1px solid rgba(255,255,255,.12); background: #191c21; color: var(--white); font: 700 11px/1 var(--mono); }
.transpose-control button, .transpose-control output {
  width: 29px;
  height: 29px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255,255,255,.12);
  background: #191c21;
  color: var(--white);
}
.transpose-control button { cursor: pointer; }
.transpose-control output { border-left: 0; border-right: 0; color: var(--gold); }
.beat-toggle { border: 0; background: none; color: #777b82; cursor: pointer; font: 700 11px/1 var(--mono); text-transform: uppercase; letter-spacing: .08em; white-space: nowrap; }
.beat-toggle span { display: inline-block; width: 6px; height: 6px; margin-right: 6px; border-radius: 50%; background: #4c5057; }
.beat-toggle[aria-pressed="true"] { color: var(--gold); }
.beat-toggle[aria-pressed="true"] span { background: var(--gold); }

.play-toast {
  position: fixed;
  z-index: 100;
  left: 50%;
  bottom: 24px;
  transform: translate(-50%,25px);
  padding: 13px 18px;
  background: var(--red);
  color: var(--white);
  opacity: 0;
  pointer-events: none;
  transition: .2s;
  font: 700 11px/1.4 var(--mono);
}
.play-toast.show { opacity: 1; transform: translate(-50%,0); }

:fullscreen .play-nav, :fullscreen .song-heading { display: none; }
:fullscreen .play-stage { min-height: 100vh; padding: 0; background: var(--ink); display: flex; flex-direction: column; }
:fullscreen .visual-stage { flex: 1; width: 100%; max-width: none; }
:fullscreen .piano-panel, :fullscreen .transport { width: 100%; max-width: none; }

@media (max-width: 1000px) {
  .song-picker { grid-template-columns: 1fr; }
  .piano-panel { grid-template-columns: 1fr; }
  .transport { grid-template-columns: auto auto auto minmax(180px,1fr); }
  .select-control, .transpose-control, .beat-toggle { grid-row: 2; }
  .library-heading { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
  .play-nav { height: 66px; grid-template-columns: 1fr auto; padding: 0 17px; }
  .play-product { display: none; }
  .brand { font-size: 14px; }
  .back-link { font-size: 11px; }
  .song-picker { min-height: calc(100vh - 66px); padding: 60px 19px 80px; }
  .picker-copy h1 { font-size: 67px; }
  .picker-grid { grid-template-columns: 1fr; }
  .play-stage { padding: 25px 12px 28px; }
  .song-heading { align-items: flex-start; flex-direction: column; }
  .fullscreen-button { display: none; }
  .visual-stage { min-height: 430px; padding: 45px 17px 25px; }
  .current-lyric { font-size: 34px; }
  .chord-runway { grid-template-columns: repeat(3,minmax(0,1fr)); }
  .runway-chord:first-child, .runway-chord:last-child { display: none; }
  .piano-panel { padding: 25px 17px 28px; }
  .piano-keyboard { min-width: 620px; height: 125px; }
  .transport { grid-template-columns: auto auto auto 1fr; padding: 13px 11px; gap: 8px; }
  .select-control { grid-column: 1 / 3; }
  .transpose-control { grid-column: 3 / -1; justify-content: end; }
  .beat-toggle { grid-column: 1 / -1; text-align: left; min-height: 25px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}