:root{
  --bg:#0B1026; --surface:#151B3B; --surface2:#1D2550; --sel:#232B66; --line:#262E5A; --line2:#1C2348;
  --text:#EDEFFB; --muted:#9AA3CC; --soft:#B4BCE3; --accent:#8B7CFF; --accent-t:#A89CFF;
  --grad:linear-gradient(90deg,#7A5CFF,#3E86FF);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;height:100%;background:var(--bg);color:var(--text);font-family:system-ui,Roboto,'Segoe UI',sans-serif;overscroll-behavior:none}
button{font-family:inherit;cursor:pointer}
#app{height:100dvh;max-width:480px;margin:0 auto;display:flex;flex-direction:column;overflow:hidden;padding-top:env(safe-area-inset-top)}
.hdr{height:56px;flex:none;display:flex;align-items:center;justify-content:space-between;padding:0 8px 0 4px}
.hdr h1{font-size:17px;font-weight:600;margin:0}
.ibtn{width:44px;height:44px;border:0;background:transparent;color:var(--text);display:flex;align-items:center;justify-content:center}
.tbtn{height:44px;padding:0 12px;border:0;background:transparent;color:var(--accent-t);font-size:15px;font-weight:600}
.tbtn:disabled{opacity:.4}

/* preview */
.card{flex:none;margin:8px 16px 0;height:min(308px,36dvh);border-radius:24px;border:1px solid var(--line);overflow:hidden;display:flex;flex-direction:column;
  background-color:#0F1531;background-image:conic-gradient(#121939 25%,#0D1230 0 50%,#121939 0 75%,#0D1230 0);background-size:28px 28px}
.card .top{flex:none;display:flex;justify-content:space-between;align-items:center;padding:12px 14px 0}
.chip{height:28px;padding:0 12px;border-radius:14px;background:var(--surface2);display:flex;align-items:center;font-size:12px;color:var(--soft)}
.chip.a{font-weight:600;color:#C9C3FF}
.stage{flex:1;min-height:0;display:flex;align-items:center;justify-content:center}
.stage svg{height:100%;width:auto;max-width:100%;aspect-ratio:1/1}
.ctl{flex:none;padding:0 14px 10px}
.row{display:flex;align-items:center;gap:10px}
.play{width:44px;height:44px;flex:none;border-radius:22px;border:0;background:var(--text);color:var(--bg);display:flex;align-items:center;justify-content:center}
.track{flex:1;position:relative;height:44px;display:flex;align-items:center;touch-action:none}
.track .bar{width:100%;height:6px;border-radius:3px;background:#2A3366}
.track .fill{position:absolute;left:0;height:6px;border-radius:3px;background:var(--grad)}
.track .thumb{position:absolute;margin-left:-8px;width:16px;height:16px;border-radius:8px;background:#fff;border:3px solid #7A5CFF}
.time{flex:none;width:66px;text-align:right;font-size:12px;color:var(--soft)}
.marks{display:flex;justify-content:space-between;padding:0 4px 0 54px;margin-top:-4px;font-size:11px;color:var(--muted)}

/* tabs */
.tabs{flex:none;margin-top:8px;height:44px;display:flex;overflow-x:auto;padding:0 8px;border-bottom:1px solid var(--line2);scrollbar-width:none}
.tab{flex:none;height:44px;padding:0 14px;border:0;background:transparent;color:var(--muted);font-size:15px;position:relative}
.tab.on{color:var(--text);font-weight:600}
.tab.on::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:3px;border-radius:2px;background:var(--grad)}

/* panel */
.panel{flex:1;min-height:0;overflow-y:auto;padding-bottom:6px}
.sec{padding:10px 16px 0}
.lbl{font-size:13px;font-weight:500;color:var(--muted);margin-bottom:6px;display:flex;justify-content:space-between}
.tiles{display:flex;gap:8px}
.tile{flex:1;min-width:0;height:56px;border-radius:16px;border:2px solid var(--line);background:var(--surface);color:var(--text);display:flex;align-items:center;justify-content:center;font-size:13px}
.tile.on{border-color:var(--accent);background:var(--sel);color:#fff}
.tile svg{width:34px;height:34px}
.pills{display:flex;gap:8px;flex-wrap:wrap}
.pill{height:44px;padding:0 18px;border-radius:22px;border:1px solid var(--line);background:var(--surface);color:var(--text);font-size:14px}
.pill.on{border-color:transparent;background:var(--grad);color:#fff;font-weight:600}
.sw{width:44px;height:44px;border-radius:22px;border:2px solid transparent;background:transparent;display:flex;align-items:center;justify-content:center;padding:0}
.sw i{display:block;width:32px;height:32px;border-radius:16px;border:2px solid rgba(255,255,255,.25)}
.sw.on{border-color:#fff}
.swrow{display:flex;gap:4px;flex-wrap:wrap;margin-left:-4px}
input[type=range]{width:100%;height:44px;accent-color:#7A5CFF;background:transparent}

/* bottom bar */
.bar2{flex:none;padding:10px 16px calc(14px + env(safe-area-inset-bottom));background:var(--bg);border-top:1px solid var(--line2)}
.meta{display:flex;justify-content:space-between;font-size:12px;color:var(--muted);margin-bottom:8px}
.cta{width:100%;height:52px;border-radius:16px;border:0;background:var(--grad);color:#fff;font-size:16px;font-weight:600}
.cta:disabled{opacity:.6}
.cta2{height:52px;border-radius:16px;border:1px solid #3A4580;background:var(--surface);color:var(--text);font-size:15px;font-weight:600}
.acts{display:flex;gap:10px}

/* pack */
.ptitle{flex:none;padding:4px 16px 12px}
.ptitle h2{margin:0;font-size:24px;font-weight:700}
.ptitle p{margin:4px 0 0;font-size:13px;color:var(--muted)}
.grid{padding:0 16px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.cell{aspect-ratio:1/1;border-radius:20px;background:var(--surface);border:2px solid var(--line);display:flex;align-items:center;justify-content:center;padding:0;color:var(--accent-t)}
.cell.on{background:var(--sel);border-color:var(--accent)}
.cell img{width:88%;height:88%;object-fit:contain}
.cell.add{background:transparent;border:2px dashed #3A4580}
.info{margin:16px 16px 0;padding:14px;border-radius:20px;background:var(--surface);border:1px solid var(--line);display:flex;flex-direction:column;gap:6px}
.info b{font-size:15px}
.info span{font-size:13px;color:var(--muted)}
.info button{align-self:flex-start;border:0;background:transparent;color:#FF8A8A;font-size:14px;height:36px;padding:0;margin-top:4px}
.empty{margin:40px 24px;text-align:center;color:var(--muted);font-size:14px;line-height:1.5}

/* modal + toast */
.modal{position:fixed;inset:0;background:rgba(5,8,22,.7);display:flex;align-items:center;justify-content:center;padding:24px;z-index:10}
.dlg{width:100%;max-width:360px;background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:18px;display:flex;flex-direction:column;gap:12px}
.dlg h3{margin:0;font-size:17px}
.dlg p{margin:0;font-size:13px;color:var(--muted)}
.dlg input{height:48px;border-radius:12px;border:1px solid var(--line);background:var(--bg);color:var(--text);font-size:16px;padding:0 12px}
.toast{position:fixed;left:50%;bottom:calc(100px + env(safe-area-inset-bottom));transform:translateX(-50%);background:#fff;color:#0B1026;padding:10px 16px;border-radius:14px;font-size:14px;font-weight:600;z-index:11;max-width:90%;text-align:center}