:root{--accent:#dff4ff;--glow:rgba(223,244,255,.5);--bg1:#0b1330;--bg2:#020308;--ink:#e9eef7;--mute:#8a95ad}
*{box-sizing:border-box}
body{margin:0;min-height:100vh;color:var(--ink);font-family:'IBM Plex Mono',monospace;font-weight:300;
background:radial-gradient(ellipse at 50% -10%,var(--bg1),var(--bg2) 70%);overflow-x:hidden}
.spot{position:fixed;inset:0;pointer-events:none;background:radial-gradient(circle at 50% 30%,transparent 30%,rgba(0,0,0,.6));z-index:0}
header,main,footer{position:relative;z-index:1}
header{text-align:center;padding:28px 12px 8px}
h1{font-family:'Cormorant Garamond',serif;font-weight:300;font-size:clamp(3rem,10vw,6.5rem);margin:0;letter-spacing:.08em;line-height:1}
.shimmer{background:linear-gradient(100deg,#8a95ad 20%,#fff 40%,var(--accent) 50%,#8a95ad 70%);background-size:300% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;animation:sh 6s linear infinite}
@keyframes sh{to{background-position:-300% 0}}
.tag{font-family:'Cormorant Garamond',serif;font-size:1.25rem;color:var(--mute);margin:6px 0}
#auth-status{font-size:.7rem;color:var(--mute)}
#auth-status a{color:var(--accent)}
main{max-width:1200px;margin:0 auto;padding:10px 14px}
.panel{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.12);border-radius:14px;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);padding:14px 16px;box-shadow:0 0 30px -12px var(--glow);animation:rise .8s both}
@keyframes rise{from{opacity:0;transform:translateY(14px)}}
.stage{padding:8px;margin-bottom:14px}
canvas{display:block;width:100%;touch-action:none;border-radius:10px;cursor:crosshair}
.hint{font-size:.72rem;color:var(--mute);text-align:center;padding:6px}
#controls{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:14px}
#controls .panel:nth-child(2){animation-delay:.1s}#controls .panel:nth-child(3){animation-delay:.2s}#controls .panel:nth-child(4){animation-delay:.3s}#controls .panel:nth-child(5){animation-delay:.4s}#controls .panel:nth-child(6){animation-delay:.5s}
h2{font-family:'Cormorant Garamond',serif;font-weight:600;font-size:1.35rem;margin:0 0 10px;color:var(--accent)}
.pills{display:flex;flex-wrap:wrap;gap:6px}
button{font-family:inherit;font-size:.8rem;color:var(--ink);background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.2);border-radius:99px;padding:7px 13px;cursor:pointer;transition:.2s}
button:hover{border-color:var(--accent)}
button.on{background:var(--accent);color:#050814;border-color:var(--accent);box-shadow:0 0 16px var(--glow)}
button:disabled{opacity:.35;cursor:default}
.big{display:block;width:100%;margin-top:10px;border-radius:10px}
.sub{font-size:.72rem;color:var(--mute);margin:8px 0 0;min-height:1.2em}
input[type=range]{width:100%;accent-color:var(--accent)}
.readout{display:flex;justify-content:space-between;font-size:.9rem;margin:4px 0}
.gauge{height:8px;border-radius:4px;background:linear-gradient(90deg,#4aa3ff,#223 45%,#223 55%,#ff8a4a);position:relative}
.needle{position:absolute;top:-4px;width:3px;height:16px;background:#fff;left:50%;transition:left .2s;box-shadow:0 0 6px #fff}
.etudes{margin-top:10px;max-height:160px;overflow:auto;font-size:.72rem}
.etudes div{display:flex;justify-content:space-between;align-items:center;padding:5px 0;border-bottom:1px dashed rgba(255,255,255,.1)}
.etudes button{padding:3px 9px;font-size:.7rem}
.placard p{font-family:'Cormorant Garamond',serif;font-size:1.05rem;line-height:1.4;margin:0 0 8px}
.c-blue{color:#7cc4ff}.c-amber{color:#f2b457}.c-rose{color:#ff9fc0}
footer{text-align:center;padding:30px 10px;display:flex;flex-direction:column;gap:6px}
footer a{color:var(--accent);font-family:'Cormorant Garamond',serif;font-size:1.2rem}
footer small{color:var(--mute);font-size:.7rem}