:root{
  --case:#33363c;
  --case-hi:#4b4f58;
  --case-lo:#1b1d21;
  --panel:#b3b8c0;
  --panel-lo:#8b9099;
  --window:#101216;
  --ivory:#e9e3d3;
  --amber:#ff9b21;
  --red:#ff3b30;
  --green:#35d07f;
  --ink:#0e0f12;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
  --sans:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Noto Sans JP",sans-serif;
  color-scheme:dark;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{
  font-family:var(--sans);
  background:
    radial-gradient(120% 80% at 50% 0%, #34373d 0%, #1a1c20 60%, #0d0e11 100%);
  min-height:100dvh;
  padding:14px 12px calc(28px + env(safe-area-inset-bottom));
  display:flex;flex-direction:column;align-items:center;gap:14px;
  color:var(--ivory);
  touch-action:manipulation;
}
.stage{width:100%;max-width:460px}
.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ── 本体 ───────────────────────────── */
.handle{
  width:52%;height:26px;margin:0 auto -12px;
  border:5px solid var(--case-hi);border-bottom:none;
  border-radius:16px 16px 0 0;
  background:linear-gradient(#3d4149,#2a2d33);
  box-shadow:inset 0 2px 0 rgba(255,255,255,.18);
}
.boombox{
  position:relative;
  border-radius:16px;
  padding:16px 14px 18px;
  background:linear-gradient(170deg,var(--case-hi) 0%,var(--case) 14%,#2a2d33 70%,#212429 100%);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.22),
    inset 0 -2px 6px rgba(0,0,0,.5),
    0 18px 40px rgba(0,0,0,.55);
  display:flex;flex-direction:column;gap:12px;
}
.boombox::before,.boombox::after,
.screw{position:absolute;width:11px;height:11px;border-radius:50%;
  background:radial-gradient(circle at 35% 30%,#9aa0a8,#4c5058 60%,#2b2e34);
  box-shadow:inset 0 0 0 1px rgba(0,0,0,.45),0 1px 1px rgba(255,255,255,.12)}
.boombox::before{content:"";left:9px;top:9px}
.boombox::after{content:"";right:9px;top:9px}
.screw.bl{left:9px;bottom:9px}.screw.br{right:9px;bottom:9px}
.screw i{position:absolute;inset:3px 1px;border-top:1.5px solid rgba(0,0,0,.5);top:4.5px;height:0}

/* ── ブランドバー ─────────────────────── */
.brand{display:flex;align-items:center;justify-content:center;gap:10px;padding:0 22px}
.brand b{
  font:800 13px/1 var(--sans);letter-spacing:.34em;
  color:#dfe3e8;text-shadow:0 1px 0 rgba(0,0,0,.6);
  padding-left:.34em;
}
.brand small{font:600 9px/1 var(--mono);letter-spacing:.18em;color:#7e848d}
.pwr{width:9px;height:9px;border-radius:50%;background:#5b2b22;flex:none;
  box-shadow:inset 0 0 3px rgba(0,0,0,.8)}
.pwr.on{background:var(--red);box-shadow:0 0 9px 2px rgba(255,59,48,.6),inset 0 0 3px rgba(255,255,255,.5)}

/* ── カセット窓 ──────────────────────── */
.deck{
  position:relative;border-radius:9px;padding:8px;
  background:linear-gradient(#1d1f24,#26292f);
  box-shadow:inset 0 3px 8px rgba(0,0,0,.7),0 1px 0 rgba(255,255,255,.1);
}
.deck svg{display:block;width:100%;height:auto;border-radius:5px;
  background:linear-gradient(160deg,#191b1f,#0b0c0e 70%);
  box-shadow:inset 0 0 26px rgba(0,0,0,.9)}
.glare{position:absolute;inset:8px;border-radius:5px;pointer-events:none;
  background:linear-gradient(112deg,rgba(255,255,255,.11) 0%,rgba(255,255,255,.03) 26%,transparent 46%)}
#lid{opacity:0;transition:opacity .25s}
.deck.empty #lid{opacity:1}

/* ── カウンター＋VU ───────────────────── */
.strip{display:grid;grid-template-columns:1fr auto;gap:10px;align-items:stretch}
.readout{
  border-radius:7px;padding:8px 10px;
  background:linear-gradient(#0f1114,#191c21);
  box-shadow:inset 0 2px 7px rgba(0,0,0,.8),0 1px 0 rgba(255,255,255,.09);
  display:flex;flex-direction:column;justify-content:center;gap:5px;min-width:0;
}
.count{font:700 30px/1 var(--mono);letter-spacing:.09em;color:var(--amber);
  text-shadow:0 0 12px rgba(255,155,33,.5)}
.count span{opacity:.16}
.sub{display:flex;justify-content:space-between;align-items:baseline;gap:8px}
.sub .t{font:600 11px/1 var(--mono);color:#7f8792;letter-spacing:.06em}
.sub .mode{font:700 10px/1 var(--mono);letter-spacing:.14em;color:#5d646d}
.sub .mode.rec{color:var(--red)}.sub .mode.play{color:var(--green)}.sub .mode.rev{color:var(--amber)}
.vu{border-radius:7px;padding:6px 8px;background:linear-gradient(#e9e4d6,#cdc7b6);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.7),0 1px 0 rgba(0,0,0,.4);width:132px}
.vu svg{display:block;width:100%;height:auto}

/* ── トランスポート ───────────────────── */
.transport{display:grid;grid-template-columns:repeat(5,1fr);gap:7px}
.key{
  appearance:none;border:none;cursor:pointer;
  padding:11px 2px 13px;border-radius:5px;
  background:linear-gradient(#e2e5ea,#b7bcc4 62%,#9aa0a8);
  box-shadow:0 4px 0 #5c616a,0 6px 8px rgba(0,0,0,.45),inset 0 1px 0 rgba(255,255,255,.85);
  color:#2c2f35;font-family:var(--sans);
  display:flex;flex-direction:column;align-items:center;gap:4px;
  transition:transform .05s,box-shadow .05s;
}
.key .ico{font-size:15px;line-height:1;letter-spacing:-.04em}
.key .lb{font:700 8.5px/1 var(--mono);letter-spacing:.06em;color:#565b63}
.key:active,.key.down{transform:translateY(4px);
  box-shadow:0 0 0 #5c616a,0 1px 3px rgba(0,0,0,.5),inset 0 2px 4px rgba(0,0,0,.28)}
.key.rec .ico{color:var(--red)}
.key.rec.down,.key.rec.armed{background:linear-gradient(#f0b6b1,#d0827a 62%,#b96b63)}
.key[disabled]{opacity:.42;pointer-events:none}

/* ── スライダー ─────────────────────── */
.dials{display:grid;grid-template-columns:1fr 1fr;gap:12px;
  background:linear-gradient(#43474f,#2f3238);border-radius:8px;padding:11px 12px 9px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.13),inset 0 -2px 5px rgba(0,0,0,.4)}
.dial{min-width:0}
.dial label{display:flex;justify-content:space-between;align-items:baseline;
  font:700 9px/1 var(--mono);letter-spacing:.13em;color:#9fa6b0;margin-bottom:7px}
.dial label b{font:700 10px/1 var(--mono);color:var(--amber);letter-spacing:.04em}
input[type=range]{
  -webkit-appearance:none;appearance:none;width:100%;height:22px;background:transparent;margin:0;
}
input[type=range]::-webkit-slider-runnable-track{height:6px;border-radius:3px;
  background:linear-gradient(#15171a,#22262c);box-shadow:inset 0 1px 3px rgba(0,0,0,.9)}
input[type=range]::-moz-range-track{height:6px;border-radius:3px;background:#15171a}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:17px;height:26px;margin-top:-10px;
  border-radius:3px;background:linear-gradient(#eef0f3,#a9aeb6 55%,#7d838c);
  box-shadow:0 2px 4px rgba(0,0,0,.6),inset 0 1px 0 #fff,inset 0 -6px 0 -5px rgba(0,0,0,.35)}
input[type=range]::-moz-range-thumb{width:17px;height:26px;border:none;border-radius:3px;
  background:linear-gradient(#eef0f3,#8f959d)}

/* ── サブ操作 ───────────────────────── */
.subrow{display:grid;grid-template-columns:1fr 1fr 1fr;gap:7px}
.tab{
  appearance:none;border:none;cursor:pointer;border-radius:5px;padding:10px 4px;
  background:linear-gradient(#3f434b,#2b2e34);color:#c9cfd7;
  font:700 10.5px/1.35 var(--sans);letter-spacing:.04em;
  box-shadow:0 2px 0 #191b1f,inset 0 1px 0 rgba(255,255,255,.14);
  transition:transform .05s,box-shadow .05s;
}
.tab:active{transform:translateY(2px);box-shadow:0 0 0 #191b1f,inset 0 2px 4px rgba(0,0,0,.4)}
.tab.on{background:linear-gradient(#7a5a1c,#5c4212);color:#ffd493}
.tab[disabled]{opacity:.42;pointer-events:none}
#file{display:none}

/* ── スピーカー ─────────────────────── */
.speakers{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.sp{position:relative;aspect-ratio:1/.82;border-radius:8px;overflow:hidden;
  background:#191b1f;box-shadow:inset 0 0 0 3px #3c4047,inset 0 3px 10px rgba(0,0,0,.8)}
.sp .mesh{position:absolute;inset:4px;border-radius:5px;
  background:radial-gradient(circle at center,#0a0b0d 1.5px,transparent 1.7px) 0 0/8px 8px,
             radial-gradient(120% 100% at 30% 20%,#3a3e45,#191b1f 70%)}
.sp .cone{position:absolute;left:50%;top:50%;width:46%;aspect-ratio:1;transform:translate(-50%,-50%);
  border-radius:50%;background:radial-gradient(circle at 42% 38%,#54596210,#00000060);
  box-shadow:inset 0 0 18px rgba(0,0,0,.9),0 0 0 2px rgba(255,255,255,.05);
  transition:transform .06s ease-out}

/* ── メッセージ ─────────────────────── */
.msg{max-width:460px;width:100%;text-align:left;font-size:11.5px;line-height:1.75;color:#8d939c;
  padding:0 8px;margin:0}
.msg-line{display:block}
.msg-line + .msg-line{margin-top:4px}
.msg b{color:var(--amber);font-weight:700}
.site-footer{max-width:460px;width:100%;padding:16px 8px 0;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-direction:column;align-items:center;gap:12px;font-size:10.5px;color:#666d76}
.site-footer a{color:#8d939c;text-decoration:none}
.site-footer a:hover{color:var(--amber)}
.guide-link{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:10px 18px;border:1px solid #4a4f58;
  border-radius:6px;background:linear-gradient(#3f434b,#292c32);box-shadow:0 2px 0 #17191d,inset 0 1px 0 rgba(255,255,255,.12);
  color:#d5dae0!important;font-size:11px;font-weight:700;letter-spacing:.04em}
.guide-link:hover{border-color:#76603b;color:var(--amber)!important}
.footer-links{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:4px 8px}
.footer-links .sep{color:#484d55;user-select:none}
.toast{position:fixed;left:50%;bottom:26px;transform:translate(-50%,20px);
  background:#0e1013;color:var(--ivory);border:1px solid #3a3e45;border-radius:8px;
  padding:10px 16px;font-size:12.5px;box-shadow:0 10px 30px rgba(0,0,0,.6);
  opacity:0;pointer-events:none;transition:.25s;z-index:9;max-width:calc(100vw - 32px);width:max-content;box-sizing:border-box;text-align:center}
.toast.show{opacity:1;transform:translate(-50%,0)}
.drop{position:fixed;inset:0;background:rgba(10,11,13,.86);z-index:20;
  display:none;align-items:center;justify-content:center;
  font:700 15px var(--sans);color:var(--amber);letter-spacing:.05em}
.drop.show{display:flex}
button:focus-visible,a:focus-visible,input:focus-visible{outline:2px solid var(--amber);outline-offset:3px}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}