:root{
  --shell:#c4c2bd;
  --shell-dark:#a8a6a0;
  --screen-bezel:#5a5c52;
  --lcd:#8bac0f;
  --pink:#e84f8c;
  --pink-dark:#c2356e;
  --ink:#2b2b28;
}
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent;}
html,body{height:100%;}
body{
  font-family:'VT323',monospace;
  background:
    radial-gradient(circle at 20% 10%, #3a4d2e 0%, transparent 45%),
    radial-gradient(circle at 85% 90%, #4a2b45 0%, transparent 50%),
    #16180f;
  color:#e8e6dd;
  min-height:100%;
  display:flex;justify-content:center;
  padding:14px;
}
#app{width:100%;max-width:560px;display:flex;flex-direction:column;gap:16px;}

#topbar{text-align:center;padding:6px 0;}
#topbar h1{font-family:'Press Start 2P',monospace;font-size:20px;color:var(--pink);
  text-shadow:2px 2px 0 #0f380f,4px 4px 0 rgba(0,0,0,.4);letter-spacing:1px;}
.tag{font-size:20px;color:#9bbc0f;margin-top:8px;opacity:.85;}

/* Drop zone */
#drop-zone{
  border:3px dashed #6b8e3a;border-radius:16px;
  padding:40px 20px;text-align:center;cursor:pointer;
  background:rgba(15,56,15,.35);transition:.2s;
}
#drop-zone.drag-over{border-color:var(--pink);background:rgba(232,79,140,.15);transform:scale(1.01);}
.dz-icon{font-size:56px;margin-bottom:10px;}
.dz-title{font-size:24px;color:#e8e6dd;}
.dz-sub{font-size:18px;color:#9bbc0f;margin:8px 0 18px;opacity:.8;}

.btn{
  font-family:'VT323',monospace;font-size:18px;
  background:var(--shell);color:var(--ink);
  border:none;border-bottom:4px solid var(--shell-dark);
  border-radius:8px;padding:8px 14px;cursor:pointer;transition:.08s;
}
.btn:active{transform:translateY(2px);border-bottom-width:2px;}
.btn.pink{background:var(--pink);color:#fff;border-bottom-color:var(--pink-dark);
  font-family:'Press Start 2P';font-size:12px;padding:14px 20px;display:inline-block;}

/* Header info */
#header-info{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;align-items:center;}
.hi-title{font-family:'Press Start 2P';font-size:11px;color:var(--pink);}
.hi-chip{font-size:17px;background:#0f380f;color:#9bbc0f;padding:3px 9px;border-radius:6px;}
.hi-warn{font-size:16px;color:#ffcf6b;width:100%;text-align:center;}

/* Console bezel */
.console-bezel{
  background:linear-gradient(160deg,var(--shell),var(--shell-dark));
  border-radius:14px 14px 40px 14px;
  padding:22px 22px 14px;
  box-shadow:inset 0 2px 4px rgba(255,255,255,.5),0 10px 30px rgba(0,0,0,.6);
  position:relative;
}
.power-led{position:absolute;top:34px;left:14px;width:8px;height:8px;border-radius:50%;
  background:radial-gradient(circle,#ff5a5a,#8a0000);box-shadow:0 0 6px #ff5a5a;}
.screen-frame{
  background:var(--screen-bezel);border-radius:8px 8px 24px 8px;
  padding:16px 26px;position:relative;
}
#screen{
  width:100%;image-rendering:pixelated;image-rendering:crisp-edges;
  display:block;border-radius:2px;background:#9bbc0f;
  box-shadow:inset 0 0 8px rgba(0,0,0,.5);
}
#scanlines{position:absolute;inset:16px 26px;pointer-events:none;border-radius:2px;
  background:repeating-linear-gradient(to bottom,rgba(0,0,0,.12) 0 1px,transparent 1px 3px);}
.dot-matrix{text-align:center;color:#3a3d5a;font-size:13px;margin-top:8px;letter-spacing:2px;
  font-family:'Press Start 2P';}

/* Control bar */
#control-bar{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;align-items:center;}
#fps{font-size:18px;color:#9bbc0f;padding:0 6px;}

/* Gamepad */
#gamepad{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:auto auto;
  gap:10px;align-items:center;justify-items:center;padding:8px 4px;}
.dpad{position:relative;width:130px;height:130px;}
.db{position:absolute;background:#2b2b28;color:#777;border:none;font-size:18px;
  width:44px;height:44px;cursor:pointer;}
.db.up{top:0;left:43px;border-radius:6px 6px 0 0;}
.db.down{bottom:0;left:43px;border-radius:0 0 6px 6px;}
.db.left{top:43px;left:0;border-radius:6px 0 0 6px;}
.db.right{top:43px;right:0;border-radius:0 6px 6px 0;}
.db.center{top:43px;left:43px;background:#2b2b28;pointer-events:none;}
.db.pressed{background:#555;color:#fff;}
.ab-cluster{display:flex;gap:18px;transform:rotate(-20deg);}
.round-btn{width:58px;height:58px;border-radius:50%;background:var(--pink);color:#fff;
  border:none;border-bottom:5px solid var(--pink-dark);font-family:'Press Start 2P';font-size:16px;cursor:pointer;}
.round-btn.pressed{transform:translateY(3px);border-bottom-width:2px;}
.start-select{grid-column:1/3;display:flex;gap:18px;justify-content:center;}
.pill{background:#5a5c52;color:#ddd;border:none;border-bottom:3px solid #3a3c34;
  border-radius:12px;padding:6px 16px;font-size:14px;font-family:'Press Start 2P';
  transform:rotate(-20deg);cursor:pointer;}
.pill.pressed{transform:rotate(-20deg) translateY(2px);}

/* Debug */
#debug{background:rgba(0,0,0,.35);border-radius:10px;padding:6px 12px;}
#debug summary{cursor:pointer;font-size:18px;color:#9bbc0f;}
#debug-content{margin-top:8px;}
#cpu-regs,#serial-log{font-family:'VT323';font-size:16px;color:#9bbc0f;white-space:pre-wrap;
  background:#0f380f;padding:8px;border-radius:6px;}
.serial-label{font-size:15px;color:#7fae5f;margin:8px 0 4px;}
#serial-log{min-height:20px;color:#e8e6dd;}

.keymap{text-align:center;font-size:17px;color:#9bbc0f;opacity:.85;}
.keymap b{color:var(--pink);}

footer{text-align:center;font-size:16px;color:#6b8e3a;padding:12px 0;}
footer a{color:var(--pink);text-decoration:none;}
footer a:hover{text-decoration:underline;}

.hidden{display:none!important;}

/* Show on-screen gamepad only where it helps */
@media (min-width:700px){ #gamepad{max-width:420px;margin:0 auto;} }
@media (hover:hover) and (pointer:fine){
  #gamepad{opacity:.65;}
}
</parameter>