:root {
  --bg: #0b0b0d;
  --fg: #ecebe8;
  --dim: #8d8b86;
  --line: rgba(255, 255, 255, .14);
  --panel: rgba(12, 12, 14, .88);
  --menu-w: 300px;
  --top-h: 56px;
  --ui: ui-sans-serif, system-ui, -apple-system, "Helvetica Neue", Arial, "Hiragino Sans", "Noto Sans JP", sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: var(--bg); color: var(--fg); font-family: var(--ui); }
body { overflow: hidden; -webkit-font-smoothing: antialiased; }
[hidden] { display: none !important; }
a { color: inherit; }
button { font: inherit; color: inherit; }

.btn {
  appearance: none; border: 1px solid var(--line); background: rgba(0, 0, 0, .35); color: var(--fg);
  padding: 10px 16px; border-radius: 999px; font-size: 13px; letter-spacing: .08em; text-transform: uppercase;
  cursor: pointer; min-height: 44px; backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
}
.btn:hover { border-color: rgba(255, 255, 255, .5); }
.btn:focus-visible, .mi:focus-visible, a:focus-visible { outline: 2px solid var(--fg); outline-offset: 2px; }
.btn-main { background: var(--fg); color: #111; border-color: var(--fg); min-width: 96px; }
.btn-lg { font-size: 15px; padding: 14px 40px; }

/* gate */
.gate { position: fixed; inset: 0; z-index: 50; display: grid; place-items: center; background: rgba(8, 8, 10, .72); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }
/* while the gate is up only the picture shows behind it — no controls, caption or lyrics to collide with Enter */
.gated .caption, .gated .controls, .gated .progress, .gated .lyrics, .gated .panel { visibility: hidden; }
.gate-in { text-align: center; padding: 24px; }
.gate-k { letter-spacing: .4em; text-transform: none; font-size: 13px; color: var(--dim); margin: 0 0 10px; }
.gate-t { font-size: clamp(28px, 6vw, 56px); margin: 0 0 28px; font-weight: 300; }
.gate-n { color: var(--dim); font-size: 12px; margin-top: 16px; letter-spacing: .06em; }

/* layout */
.app { position: fixed; inset: 0; display: grid; grid-template-columns: var(--menu-w) 1fr; grid-template-rows: var(--top-h) 1fr; }
.top { grid-column: 1 / -1; display: flex; align-items: center; gap: 16px; padding: 0 20px; border-bottom: 1px solid var(--line); background: var(--bg); z-index: 5; }
.brand { font-weight: 600; letter-spacing: .3em; text-transform: none; text-decoration: none; font-size: 14px; }
.menu-btn { display: none; }
.ext { margin-left: auto; display: flex; gap: 18px; font-size: 13px; }
.ext a { text-decoration: none; color: var(--dim); letter-spacing: .04em; white-space: nowrap; }
.ext a:hover { color: var(--fg); }
.about-link { border-left: 1px solid var(--line); padding-left: 18px; }

.menu { overflow-y: auto; border-right: 1px solid var(--line); padding: 8px 0 32px; background: var(--bg); z-index: 4; }
.menu-h { margin: 22px 20px 8px; font-size: 11px; letter-spacing: .25em; text-transform: uppercase; color: var(--dim); }
.menu-list { list-style: none; margin: 0; padding: 0; }
.mi { display: block; padding: 9px 20px; text-decoration: none; border-left: 2px solid transparent; }
.mi:hover { background: rgba(255, 255, 255, .05); }
.mi[aria-current="page"] { border-left-color: var(--fg); background: rgba(255, 255, 255, .08); }
.mi-t { display: block; font-size: 15px; }
.mi-s { display: block; font-size: 12px; color: var(--dim); margin-top: 2px; }

/* right column: stage on top, lyrics below (bar 25) */
.right { display: flex; flex-direction: column; min-height: 0; min-width: 0; }
.stage { position: relative; overflow: hidden; background: #000; flex: 1 1 auto; min-height: 0; }
.lyrics { flex: 0 0 30%; overflow-y: auto; border-top: 1px solid var(--line); padding: 16px 28px 28px; background: var(--bg); }
.ly-h { margin: 0 0 10px; font-size: 11px; letter-spacing: .25em; text-transform: uppercase; color: var(--dim); position: sticky; top: -16px; background: var(--bg); padding: 4px 0; }
.ly-t { margin-left: 12px; letter-spacing: .04em; text-transform: none; color: var(--fg); font-size: 13px; }
.ly-body p { margin: 0 0 1.2em; font-size: 15px; line-height: 1.9; color: #d9d7d2; }
.ly-body .ly-none { color: var(--dim); font-size: 14px; }
#mv { -webkit-user-select: none; user-select: none; -webkit-touch-callout: none; }
#gl, #mv { position: absolute; inset: 0; width: 100%; height: 100%; }
#mv { object-fit: contain; background: #000; opacity: 0; transition: opacity .6s; }
#mv.on { opacity: 1; }
#gl { transition: opacity .6s; }
#gl.off { opacity: 0; }
.shade { position: absolute; inset: auto 0 0 0; height: 45%; background: linear-gradient(transparent, rgba(0, 0, 0, .75)); pointer-events: none; }
.caption { position: absolute; left: 28px; right: 28px; bottom: 92px; pointer-events: none; }
.cap-k { margin: 0; font-size: 12px; letter-spacing: .25em; text-transform: uppercase; color: rgba(255, 255, 255, .7); }
.cap-t { margin: 6px 0 4px; font-size: clamp(26px, 4vw, 52px); font-weight: 300; line-height: 1.1; }
.cap-s { margin: 0; font-size: 14px; color: rgba(255, 255, 255, .75); }
.controls { position: absolute; left: 28px; bottom: 28px; display: flex; gap: 10px; flex-wrap: wrap; }
.progress { position: absolute; left: 0; right: 0; bottom: 0; height: 3px; background: rgba(255, 255, 255, .12); }
.progress-bar { height: 100%; width: 0; background: var(--fg); }

/* panel */
.panel, .about {
  position: absolute; top: 0; right: 0; bottom: 0; width: min(440px, 100%); background: var(--panel);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-left: 1px solid var(--line);
  overflow-y: auto; padding: 24px 24px 40px; z-index: 6;
}
.close { position: sticky; top: 0; float: right; }
.panel h2, .about h2 { font-weight: 400; font-size: 24px; margin: 4px 0 6px; }
.p-meta { color: var(--dim); font-size: 13px; margin: 0 0 16px; }
.listen { display: flex; gap: 8px; flex-wrap: wrap; margin: 12px 0 20px; }
.listen a { text-decoration: none; }
.tl { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.tl li { border-bottom: 1px solid var(--line); }
.tl button { width: 100%; display: flex; gap: 12px; align-items: baseline; text-align: left; background: none; border: 0; padding: 12px 4px; cursor: pointer; min-height: 44px; }
.tl button:hover { background: rgba(255, 255, 255, .06); }
.tl .no { color: var(--dim); font-size: 12px; width: 22px; flex: none; }
.tl .tt { flex: 1; font-size: 15px; }
.tl .dur { color: var(--dim); font-size: 12px; }
.tl .now .tt::before { content: "▶ "; }
.badge { font-size: 10px; letter-spacing: .15em; text-transform: uppercase; border: 1px solid var(--line); border-radius: 999px; padding: 2px 8px; color: var(--fg); margin-left: 6px; vertical-align: 2px; }
.p-from { margin: 18px 0 8px; font-size: 12px; letter-spacing: .2em; text-transform: uppercase; color: var(--dim); }
.about p { line-height: 1.7; font-size: 16px; }
.about .contact, .about-ext { font-size: 14px; }
.about-ext a { margin-right: 16px; }

/* phone */
@media (max-width: 860px) {
  :root { --top-h: 96px; }
  .app { grid-template-columns: 1fr; }
  .top { flex-wrap: wrap; padding: 10px 16px; gap: 8px 12px; align-content: center; }
  .menu-btn { display: inline-block; margin-left: auto; }
  .ext { order: 3; width: 100%; margin-left: 0; gap: 14px; font-size: 12px; }
  .about-link { padding-left: 14px; }
  .menu { position: fixed; top: var(--top-h); left: 0; right: 0; bottom: 0; border-right: 0; display: none; z-index: 20; }
  .menu.open { display: block; }
  .right { grid-column: 1; overflow-y: auto; }
  /* phone: the picture is a 16:9 band so MVs fill it without cropping; caption and buttons sit below it (bar 3, 21) */
  .stage { flex: 0 0 auto; height: auto; overflow: visible; background: var(--bg); }
  .stage::before { content: ""; display: block; height: 56.25vw; background: #000; }
  #gl, #mv { inset: auto; top: 0; left: 0; width: 100%; height: 56.25vw; }
  .shade { display: none; }
  .progress { top: calc(56.25vw - 3px); bottom: auto; }
  .caption { position: static; padding: 14px 16px 0; }
  .cap-t { font-size: 28px; }
  .controls { position: static; padding: 12px 16px 16px; }
  .controls .btn { flex: 1 1 40%; padding: 10px 8px; }
  .lyrics { flex: 0 0 auto; overflow: visible; padding: 16px; }
  .panel, .about { position: fixed; top: var(--top-h); left: 0; right: 0; bottom: 0; width: 100%; border-left: 0; z-index: 15; }
}