:root{
  --ink:#e8ecf5; --dim:#9aa6c0; --gold:#ffd166; --red:#ff5a6a; --blue:#5ad1ff; --bg:#0a0c14;
}
*{margin:0;padding:0;box-sizing:border-box}
html,body{height:100%;background:var(--bg);overflow:hidden;font-family:'Press Start 2P',monospace;color:var(--ink);-webkit-user-select:none;user-select:none}
canvas#game{position:fixed;inset:0;width:100%;height:100%;display:block;image-rendering:pixelated;background:#0a0c14}
.hidden{display:none!important}
kbd{display:inline-block;background:#1b2030;border:1px solid #36405c;border-bottom-width:2px;border-radius:3px;padding:2px 5px;margin:0 1px;font:inherit;font-size:.8em;color:var(--ink)}
b{color:var(--gold)}

/* loading + title */
#loading,#title{position:fixed;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px;z-index:30;text-align:center;
  background:radial-gradient(120% 90% at 50% 30%,#16203a 0%,#0a0c14 70%)}
#loading h1,#title .big{font-size:clamp(28px,7vw,64px);letter-spacing:4px;color:var(--gold);text-shadow:0 4px 0 #7a4d10,0 0 24px rgba(255,209,102,.4)}
.sub{font-size:11px;color:var(--dim);letter-spacing:2px}
.sub.dim{opacity:.55}
#loadTrack{width:min(360px,70vw);height:10px;background:#171c2c;border:2px solid #2a3450;border-radius:6px;overflow:hidden}
#loadBar{height:100%;width:0;background:linear-gradient(90deg,var(--gold),#ff8a3a);transition:width .2s}
.tagline{font-size:10px;color:var(--blue);letter-spacing:1px}
#startBtn{font-family:inherit;font-size:14px;color:#1a1205;background:linear-gradient(180deg,#ffe08a,#ffb13a);border:0;border-radius:8px;padding:16px 24px;cursor:pointer;box-shadow:0 5px 0 #a9701a,0 8px 22px rgba(255,160,40,.35);transition:transform .08s}
#startBtn:active{transform:translateY(3px);box-shadow:0 2px 0 #a9701a}
.modes{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
.mode{font-family:inherit;font-size:9px;color:var(--ink);background:#171d2e;border:2px solid #303b58;border-radius:7px;padding:10px 12px;cursor:pointer;transition:.12s}
.mode:hover:not([disabled]){border-color:var(--gold);color:var(--gold);transform:translateY(-2px)}
.mode[disabled]{opacity:.45;cursor:default}
.mode.active{border-color:var(--gold);color:var(--gold);box-shadow:0 0 0 2px rgba(255,209,102,.25)}
.soon{color:var(--dim);font-size:7px}
.controls-hint{margin-top:8px;font-size:8px;line-height:1.9;color:var(--dim)}
.controls-hint b{color:var(--blue)}

/* HUD */
#hud{position:fixed;inset:0;pointer-events:none;z-index:20}
.bar{position:absolute;top:14px;width:min(40vw,440px);display:flex;flex-direction:column;gap:5px}
.bar.p1{left:16px;align-items:flex-start}
.bar.p2{right:16px;align-items:flex-end}
.pname{font-size:9px;letter-spacing:1px;color:var(--ink);text-shadow:0 2px 0 #000}
.hpouter{position:relative;width:100%;height:18px;background:#10141f;border:2px solid #2c3650;border-radius:4px;overflow:hidden;box-shadow:0 3px 0 rgba(0,0,0,.4)}
.hpfill{position:absolute;top:0;left:0;height:100%;width:100%;background:linear-gradient(180deg,#7CFC6A,#36b84a);transition:width .12s}
.hpchip{position:absolute;top:0;left:0;height:100%;width:100%;background:rgba(255,255,255,.5);transition:width .45s ease-out .1s;mix-blend-mode:overlay}
.hpouter.rtl .hpfill,.hpouter.rtl .hpchip{left:auto;right:0}
.bar.p1 .pname{color:#bfe9ff}.bar.p2 .pname{color:#ffd1b0}
.ko{font-size:8px;color:var(--dim)}.ko b{color:var(--gold)}
#muteBtn{position:absolute;bottom:14px;right:14px;pointer-events:auto;background:rgba(20,26,40,.7);border:1px solid #2c3650;border-radius:8px;width:40px;height:40px;font-size:16px;cursor:pointer}

/* combo + center message */
.combo{position:fixed;top:30%;z-index:21;font-size:clamp(18px,4vw,40px);color:var(--gold);text-shadow:0 3px 0 #7a4d10,0 0 18px rgba(255,160,40,.6);opacity:0;pointer-events:none;transition:opacity .15s}
.combo{left:8%}.combo.r{left:auto;right:8%}
.combo.show{opacity:1;animation:pop .25s}
.combo .n{font-size:1.4em}
@keyframes pop{0%{transform:scale(1.6)}60%{transform:scale(.92)}100%{transform:scale(1)}}
#centerMsg{position:fixed;top:42%;left:50%;transform:translate(-50%,-50%);z-index:22;font-size:clamp(20px,5vw,52px);color:#fff;text-shadow:0 4px 0 #000,0 0 30px rgba(255,255,255,.4);opacity:0;text-align:center;pointer-events:none;transition:opacity .2s}
#centerMsg.show{opacity:1;animation:pop .3s}