:root{
  --bg:#0e0b09;
  --bg2:#1d1610;
  --panel:#17120f;
  --card:#241c16;
  --line:#473626;
  --text:#f5f0e6;
  --muted:#c8b8a4;
  --accent:#d7a65a;
  --accent-2:#6dc8d0;
  --danger:#dc6f64;
  --gold:#ffce6a;
  --shadow:0 18px 50px rgba(0,0,0,.35);
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;background:
radial-gradient(circle at top,#423022 0,#1a1410 36%,#0e0b09 76%);
color:var(--text);font-family:Inter,system-ui,-apple-system,Segoe UI,sans-serif}
button{font:inherit}
button:focus-visible{outline:3px solid #fff;outline-offset:2px}
#app{max-width:1440px;margin:auto;padding:14px}
.topbar{display:flex;justify-content:space-between;gap:16px;align-items:center;margin-bottom:12px}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{font-size:36px;filter:drop-shadow(0 0 12px rgba(215,166,90,.25))}
.brand strong{display:block;letter-spacing:.12em}
.brand small{display:block;color:var(--muted);font-size:11px;letter-spacing:.12em}
.hud{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}
.hud div{background:linear-gradient(180deg,#1f1914,#130f0c);border:1px solid var(--line);border-radius:12px;padding:8px 12px;min-width:78px;text-align:center;box-shadow:inset 0 1px 0 rgba(255,255,255,.04)}
.game-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:14px}
.board-wrap{position:relative;min-width:0;background:#0d1321;border:1px solid #4e3826;border-radius:18px;overflow:hidden;box-shadow:var(--shadow)}
canvas{display:block;width:100%;height:auto;touch-action:none;cursor:crosshair;background:#1b271f}
.panel{background:linear-gradient(180deg,#1c1612,#15110e);border:1px solid var(--line);border-radius:18px;padding:14px;display:flex;flex-direction:column;gap:15px;box-shadow:var(--shadow)}
.panel section+section{border-top:1px solid rgba(199,158,94,.18);padding-top:14px}
.panel h2{font-size:13px;text-transform:uppercase;letter-spacing:.13em;color:#e2cba9;margin:0 0 10px}
.tower-list{display:grid;gap:9px}
.tower-card{width:100%;display:grid;grid-template-columns:42px 1fr auto;align-items:center;gap:8px;text-align:left;background:linear-gradient(180deg,#2b221a,#231b15);color:var(--text);border:1px solid var(--line);border-radius:13px;padding:10px;cursor:pointer;transition:.16s ease}
.tower-card:hover,.tower-card.active{transform:translateY(-1px);border-color:var(--accent);box-shadow:0 0 0 1px rgba(215,166,90,.15),0 10px 24px rgba(0,0,0,.22)}
.tower-card:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.tower-icon{font-size:24px}
.tower-card b,.tower-card small{display:block}
.tower-card small{font-size:11px;color:var(--muted);margin-top:2px}
.tower-card em{font-style:normal;color:var(--gold);font-size:12px;font-weight:700}
.primary,.ghost,.danger{border:0;border-radius:12px;padding:11px 14px;font-weight:800;cursor:pointer;transition:.16s ease}
.primary{background:linear-gradient(180deg,#ebbd70,#d7a65a);color:#2b1705;box-shadow:inset 0 1px 0 rgba(255,255,255,.4)}
.primary:hover,.ghost:hover,.danger:hover{transform:translateY(-1px)}
.ghost{background:linear-gradient(180deg,#2a211a,#1d1712);color:var(--text);border:1px solid var(--line)}
.danger{background:linear-gradient(180deg,#ea847a,#c95e55);color:#250706}
.small{padding:9px 10px;font-size:13px}
.wave-controls{display:grid;gap:8px}
.wave-controls button:disabled{opacity:.45;cursor:not-allowed;transform:none}
.panel-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.tips p{font-size:13px;color:#decfbd;line-height:1.5}
.tips .tip{color:var(--muted)}
.selected-panel #towerInfo{font-size:13px;line-height:1.6;color:#e8ddcf;margin-bottom:10px}
.hidden{display:none!important}
.overlay{position:absolute;inset:0;display:grid;place-items:center;background:rgba(6,4,3,.56);backdrop-filter:blur(4px);padding:20px}
.overlay-card{width:min(540px,100%);text-align:center;background:linear-gradient(180deg,rgba(40,30,22,.95),rgba(24,18,13,.95));border:1px solid rgba(215,166,90,.28);border-radius:22px;padding:28px;box-shadow:0 30px 90px rgba(0,0,0,.55)}
.crest{font-size:54px;filter:drop-shadow(0 0 18px rgba(255,206,106,.16))}
.overlay h1{margin:4px 0 8px;font-size:clamp(28px,5vw,48px)}
.overlay p{color:#e0d2bf;line-height:1.6}
.overlay button{margin:6px 5px}
.hero-tags{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin:14px 0 6px}
.hero-tags span{font-size:12px;color:#f4e9da;background:rgba(215,166,90,.12);border:1px solid rgba(215,166,90,.2);padding:7px 9px;border-radius:999px}
.message{position:absolute;top:14px;left:50%;transform:translateX(-50%);background:rgba(16,11,8,.9);border:1px solid rgba(215,166,90,.34);border-radius:12px;padding:10px 15px;font-weight:700;pointer-events:none;box-shadow:0 12px 28px rgba(0,0,0,.35)}
footer{text-align:center;color:#9f8f7d;font-size:12px;padding:14px}
dialog{max-width:540px;border:1px solid var(--line);border-radius:16px;background:linear-gradient(180deg,#201914,#17120e);color:var(--text);padding:22px}
dialog::backdrop{background:rgba(0,0,0,.64)}
dialog p{line-height:1.6;color:#e2d8ca}
@media(max-width:900px){
  .game-layout{grid-template-columns:1fr}
  .panel{display:grid;grid-template-columns:1fr 1fr}
  .panel section+section{border-top:0;padding-top:0}
  .tips{grid-column:1/-1}
  .topbar{align-items:flex-start;flex-direction:column}
  .hud{justify-content:flex-start}
  .tower-list{grid-template-columns:repeat(3,1fr)}
  .tower-card{grid-template-columns:1fr;text-align:center}
  .tower-card em{display:block}
  .tower-card small{display:none}
}
@media(max-width:560px){
  #app{padding:6px}
  .brand-mark{font-size:27px}
  .brand strong{font-size:13px}
  .hud{gap:4px}
  .hud div{padding:6px 8px;min-width:66px;font-size:12px}
  .panel{grid-template-columns:1fr;padding:10px}
  .tips{grid-column:auto}
  .tower-list{grid-template-columns:repeat(3,1fr)}
  .tower-card{padding:8px 4px}
  .tower-card b{font-size:11px}
  .tower-icon{font-size:22px}
  .overlay-card{padding:18px}
  .overlay-card p{font-size:13px}
  .hero-tags span{font-size:11px}
}

.audio-buttons{display:grid;grid-template-columns:1fr 1fr;gap:8px}.audio-note{margin:9px 0 0;color:var(--muted);font-size:11px;line-height:1.45}.audio-buttons button[aria-pressed="false"]{opacity:.62;filter:saturate(.55)}
@media(max-width:560px){.audio-buttons{grid-template-columns:1fr 1fr}}