:root{
  --cyan:#48e0d0;
  --green:#6cff8a;
  --amber:#ffcc44;
  --red:#ff4d4d;
  --bg:#05070a;
  --panel:rgba(8,16,20,0.82);
  --panel-line:#1d3a3a;
  --mono:"Courier New",ui-monospace,monospace;
}

*{box-sizing:border-box;margin:0;padding:0;}

html,body{
  width:100%;height:100%;
  background:#000;
  color:var(--cyan);
  font-family:var(--mono);
  overflow:hidden;
  user-select:none;
}

body{
  display:flex;
  align-items:center;
  justify-content:center;
  background:
    radial-gradient(circle at 50% 40%, #0a141c 0%, #05070a 60%, #000 100%);
}

#stage{
  display:flex;
  gap:8px;
  align-items:stretch;
  padding:8px;
  max-width:100vw;
  max-height:100vh;
}

/* ---------- Viewport ---------- */
#viewport{
  position:relative;
  aspect-ratio:16/9;
  height:min(88vh, calc((100vw - 220px) * 0.5625));
  background:#000;
  border:2px solid var(--panel-line);
  box-shadow:0 0 30px rgba(72,224,208,0.08), inset 0 0 40px rgba(0,0,0,0.6);
}

#game{
  width:100%;
  height:100%;
  display:block;
  image-rendering:pixelated;
  image-rendering:crisp-edges;
  background:#0a0f14;
}

/* FX overlay: crisp text + smooth glowing effects, above the pixel canvas */
#fx{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  display:block;
  pointer-events:none;
  image-rendering:auto;
}

/* ---------- HUD ---------- */
#hud{position:absolute;inset:0;pointer-events:none;font-size:clamp(9px,1.2vh,13px);}
#hud.hidden{display:none;}

.hud-corner{position:absolute;padding:6px 8px;line-height:1.35;text-shadow:0 0 4px rgba(0,0,0,0.9);}
.hud-corner.tl{top:0;left:0;}
.hud-corner.tc{top:0;left:50%;transform:translateX(-50%);text-align:center;}
.hud-corner.tr{top:0;right:0;text-align:right;}

.hud-label{color:var(--green);letter-spacing:2px;font-size:0.85em;opacity:0.85;}
.mono{color:var(--cyan);}
.mono.small{font-size:0.82em;opacity:0.85;}
.score{font-size:1.3em;color:#fff;letter-spacing:1px;}

.bar-row{display:flex;align-items:center;gap:5px;margin:2px 0;}
.bar{width:120px;height:9px;border:1px solid var(--panel-line);background:rgba(0,0,0,0.5);position:relative;}
.bar.boss{width:min(48vh,340px);height:12px;border-color:var(--red);}
.bar-fill{position:absolute;inset:0;width:100%;transform-origin:left;background:linear-gradient(90deg,var(--green),var(--cyan));transition:width .12s linear;}
.bar.boss .bar-fill{background:linear-gradient(90deg,#ff7a2f,var(--red));}

#bossBar{position:absolute;top:44px;left:50%;transform:translateX(-50%);text-align:center;}
#bossBar.hidden{display:none;}
#bossName{color:var(--red);letter-spacing:3px;margin-bottom:3px;text-shadow:0 0 6px rgba(255,60,60,0.5);}

#radar{position:absolute;bottom:6px;right:6px;background:var(--panel);border:1px solid var(--panel-line);padding:3px 4px;}
.radar-title{color:var(--green);letter-spacing:2px;font-size:0.7em;}
#radarCanvas{display:block;image-rendering:pixelated;background:rgba(0,20,15,0.55);border:1px solid #123;}

#cmPrompt{position:absolute;bottom:10px;left:50%;transform:translateX(-50%);
  background:rgba(20,8,0,0.8);border:1px solid var(--amber);color:var(--amber);
  padding:4px 10px;font-size:0.95em;letter-spacing:1px;}
#cmPrompt.hidden{display:none;}

#echoCallout{position:absolute;bottom:44px;left:50%;transform:translateX(-50%);
  max-width:70%;text-align:center;background:rgba(4,20,20,0.85);
  border-left:2px solid var(--cyan);border-right:2px solid var(--cyan);
  color:var(--cyan);padding:4px 12px;font-size:0.95em;}
#echoCallout.hidden{display:none;}
#echoCallout b{color:var(--green);}

.blink{animation:blink 0.7s steps(2,start) infinite;}
@keyframes blink{to{opacity:0.25;}}

/* ---------- ECHO panel ---------- */
#echoPanel{
  width:208px;flex:0 0 208px;
  background:var(--panel);
  border:2px solid var(--panel-line);
  padding:8px;
  display:flex;flex-direction:column;gap:6px;
  font-size:11px;
  overflow:hidden;
}
#echoPanel.hidden{display:none;}
.echo-head{color:var(--green);letter-spacing:2px;font-size:13px;border-bottom:1px solid var(--panel-line);padding-bottom:5px;}
.echo-head .sub{color:var(--cyan);opacity:0.7;font-size:10px;letter-spacing:1px;}
.echo-head .dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 6px var(--green);margin-right:3px;animation:pulse 1.4s infinite;}
@keyframes pulse{50%{opacity:0.3;}}

.echo-block{background:rgba(0,0,0,0.25);border-left:2px solid var(--panel-line);padding:3px 6px;}
.echo-block.grow{flex:1;min-height:0;display:flex;flex-direction:column;}
.echo-block .k{color:var(--green);font-size:9px;letter-spacing:2px;opacity:0.8;}
.echo-block .v{color:var(--cyan);font-size:11px;word-break:break-word;line-height:1.3;}
.echo-block.cm .v{color:var(--green);}
.echo-block.cm .v.cooldown{color:var(--amber);}

.log{margin-top:3px;overflow-y:auto;font-size:10px;color:#9fe;line-height:1.35;flex:1;}
.log .entry{border-bottom:1px dotted #143;padding:2px 0;opacity:0.95;}
.log .entry .t{color:var(--green);opacity:0.7;}
.log .entry .r{color:#fff;}
.log::-webkit-scrollbar{width:5px;}
.log::-webkit-scrollbar-thumb{background:#1d3a3a;}

/* ---------- Debug ---------- */
#debugPanel{position:fixed;top:8px;left:8px;z-index:50;background:rgba(0,10,8,0.9);
  border:1px solid var(--green);padding:8px;font-size:11px;color:var(--green);max-width:280px;}
#debugPanel.hidden{display:none;}
.dbg-title{color:var(--amber);margin-bottom:4px;letter-spacing:1px;}
#debugContent{white-space:pre-wrap;color:#8fe;line-height:1.4;}

/* ---------- Overlay screens ---------- */
#overlay{position:fixed;inset:0;z-index:40;display:flex;align-items:center;justify-content:center;pointer-events:none;}
#overlay.active{pointer-events:auto;}
#overlay .screen{
  background:radial-gradient(circle at 50% 30%, rgba(10,22,28,0.92), rgba(3,6,9,0.96));
  border:2px solid var(--panel-line);
  padding:30px 44px;text-align:center;min-width:340px;max-width:90vw;
  box-shadow:0 0 40px rgba(72,224,208,0.1);
}
#overlay .title{font-size:34px;letter-spacing:6px;color:#fff;text-shadow:0 0 16px rgba(72,224,208,0.5);}
#overlay .subtitle{color:var(--amber);letter-spacing:4px;margin-top:6px;font-size:14px;}
#overlay .prompt{margin-top:22px;color:var(--green);letter-spacing:2px;}
#overlay .prompt .blink{color:#fff;}
#overlay .controls{margin-top:20px;text-align:left;display:inline-block;color:var(--cyan);font-size:13px;line-height:1.7;}
#overlay .controls b{color:var(--green);display:inline-block;width:62px;}
#overlay .stats{margin-top:18px;color:var(--cyan);font-size:15px;line-height:1.8;text-align:left;display:inline-block;}
#overlay .stats .num{color:#fff;float:right;margin-left:36px;}
#overlay .stats .row{display:flex;justify-content:space-between;gap:30px;}
#overlay .echo-line{margin-top:18px;color:var(--cyan);border-top:1px solid var(--panel-line);padding-top:12px;font-style:italic;}
#overlay .echo-line b{color:var(--green);font-style:normal;}
#overlay .menu-item{margin:8px 0;font-size:18px;letter-spacing:2px;color:var(--cyan);}
#overlay .menu-item.sel{color:#fff;}
#overlay .menu-item.sel::before{content:"> ";color:var(--green);}
#overlay .menu-item.sel::after{content:" <";color:var(--green);}
#overlay .online{color:var(--green);margin-top:26px;font-size:12px;letter-spacing:2px;}
#overlay .warn{color:var(--red);font-size:26px;letter-spacing:6px;text-shadow:0 0 12px rgba(255,60,60,0.6);}

.hidden{display:none !important;}

@media (max-width:820px){
  #echoPanel{width:150px;flex-basis:150px;font-size:9px;}
  #viewport{height:min(70vh, calc((100vw - 160px) * 0.5625));}
}