:root{--bg:#0f1420;--panel:#1a2233;--text:#f0f6fc;--muted:#b6c7d8;--warn:#fbbf24;--touch:72px}
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
body{min-height:100dvh;font-family:"PingFang TC","Noto Sans TC",system-ui,sans-serif;background:radial-gradient(ellipse at 50% 0%,#2a1f4a,transparent 50%),var(--bg);color:var(--text);padding:max(.5rem,env(safe-area-inset-top)) .7rem max(.5rem,env(safe-area-inset-bottom));user-select:none}
button{font:inherit;border:none;cursor:pointer;color:inherit}
button:active{transform:scale(.98)}
.app{max-width:560px;margin:0 auto;min-height:calc(100dvh - 1rem);display:flex;flex-direction:column}
.screen{display:flex;flex-direction:column;gap:.55rem;flex:1;min-height:0}
.hidden{display:none!important}
h1{text-align:center;font-size:clamp(1.1rem,3.8vw,1.4rem);color:#c4b5fd;font-weight:900}
.gentle{text-align:center;color:var(--muted);font-weight:700}
.panel{background:var(--panel);border-radius:16px;padding:.95rem;border:2px solid rgba(196,181,253,.3)}
.label{color:var(--warn);font-weight:900;margin:.35rem 0;font-size:1.05rem}
.chips{display:flex;flex-wrap:wrap;gap:.5rem}
.chip,.chips button{min-height:var(--touch);padding:.55rem .9rem;border-radius:16px;background:rgba(0,0,0,.34);border:3px solid rgba(182,199,216,.4);font-weight:900;font-size:1.05rem}
.chip.active,.chips button.active{border-color:var(--warn);background:rgba(251,191,36,.28);color:#fde68a;box-shadow:0 0 0 3px rgba(251,191,36,.35)}
.cur{font-weight:900;margin:.4rem 0;font-size:1.05rem}.cur span{color:var(--warn)}
.btn-go{width:100%;min-height:72px;margin-top:.6rem;border-radius:16px;font-weight:900;font-size:1.2rem;background:linear-gradient(180deg,#c4b5fd,#8b5cf6);color:#1e1b4b}
.btn{min-height:56px;border-radius:14px;font-weight:900;padding:0 .9rem;background:rgba(255,255,255,.12);flex:1;font-size:1.02rem}
.btn.ghost{background:rgba(0,0,0,.28)}
.bar{flex-shrink:0;display:flex;flex-wrap:wrap;gap:.5rem;justify-content:space-between;font-weight:900;background:var(--panel);padding:.6rem .8rem;border-radius:14px;border:1px solid rgba(196,181,253,.25)}
.bar b{color:var(--warn)}
.pads{display:grid;gap:.55rem;margin:.4rem auto;max-width:460px;width:100%;flex:1;min-height:0;align-content:center}
.pads.cols-3{grid-template-columns:repeat(3,1fr);gap:.65rem}
.pads.cols-4{grid-template-columns:repeat(4,1fr);gap:.5rem}
.pad{
  aspect-ratio:1;
  border-radius:20px;
  border:4px solid rgba(255,255,255,.38);
  box-shadow:0 6px 0 rgba(0,0,0,.4);
  opacity:.88;
  transition:opacity .12s,filter .12s,transform .1s;
  min-height:0;
  min-width:0;
}
.pads.cols-3 .pad{border-radius:22px}
.pads.cols-4 .pad{border-radius:16px;border-width:3px;box-shadow:0 5px 0 rgba(0,0,0,.4)}
.pad.lit{
  opacity:1;
  filter:brightness(1.45) saturate(1.15);
  transform:scale(1.07);
  box-shadow:0 0 26px rgba(255,255,255,.65),0 6px 0 rgba(0,0,0,.4);
  border-color:#fff;
  outline:4px solid #fbbf24;
  outline-offset:2px;
}
.pad:disabled{cursor:default}
.hint{text-align:center;color:var(--muted);font-weight:800;min-height:1.4em}
.row{display:flex;gap:.45rem;flex-shrink:0}
.overlay{position:fixed;inset:0;background:rgba(5,12,20,.78);display:flex;align-items:center;justify-content:center;padding:1rem;z-index:20}
.card{background:var(--panel);border-radius:18px;padding:1.1rem;width:min(420px,100%);border:2px solid rgba(196,181,253,.35)}
.card h2{text-align:center;color:var(--warn);margin-bottom:.5rem}
#lb-table table{width:100%;border-collapse:collapse;font-size:.95rem}
#lb-table th,#lb-table td{padding:.45rem;border-bottom:1px solid rgba(255,255,255,.1);font-weight:800}
#lb-table tr.me td{color:var(--warn)}