:root {
  --bg: #14100f;
  --fg: #f1e6d6;
  --muted: #a8998a;
  --accent: #ff7a2f;
  --enemy: #ff3d5a;
  --good: #5fe3a1;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: var(--bg); color: var(--fg); overflow: hidden;
  font-family: "Trebuchet MS", "Segoe UI", system-ui, sans-serif; }
canvas { display: block; }
#hud { position: fixed; inset: 0; pointer-events: none; }
#crosshair { position: absolute; left: 50%; top: 50%; width: 22px; height: 22px; transform: translate(-50%, -50%); }
#crosshair::before, #crosshair::after { content: ""; position: absolute; background: var(--fg); opacity: .85; }
#crosshair::before { left: 10px; top: 0; width: 2px; height: 22px; }
#crosshair::after { top: 10px; left: 0; height: 2px; width: 22px; }
#crosshair i { position: absolute; left: 8px; top: 8px; width: 6px; height: 6px; background: var(--bg); border-radius: 50%; z-index: 1; }
.bar { position: absolute; top: 16px; width: min(34vw, 320px); }
.bar.left { left: 16px; } .bar.right { right: 16px; text-align: right; }
.bar label { display: block; font-size: 12px; letter-spacing: .16em; text-transform: uppercase; color: var(--muted); margin-bottom: 4px; }
.track { height: 14px; background: rgba(0,0,0,.55); border: 1px solid rgba(255,255,255,.25); }
.fill { height: 100%; width: 100%; transition: width .12s; }
#pfill { background: var(--good); } #efill { background: var(--enemy); margin-left: auto; }
#score { position: absolute; top: 14px; left: 50%; transform: translateX(-50%); font-size: 28px; font-variant-numeric: tabular-nums; letter-spacing: .1em; text-shadow: 0 2px 6px #000; }
#score span { color: var(--muted); font-size: 14px; display: block; text-align: center; letter-spacing: .2em; }
#banner { position: absolute; left: 0; right: 0; top: 26%; text-align: center; font-size: clamp(24px, 5vw, 44px); font-weight: 700;
  letter-spacing: .14em; text-transform: uppercase; text-shadow: 0 2px 10px #000; opacity: 0; transition: opacity .3s; padding: 0 16px; }
#banner.show { opacity: 1; }
#banner small { display: block; font-size: .4em; color: var(--muted); letter-spacing: .2em; margin-top: 6px; }
#flash { position: absolute; inset: 0; background: radial-gradient(transparent 40%, rgba(255,40,40,.65)); opacity: 0; transition: opacity .35s; }
#hint { position: absolute; bottom: 14px; left: 0; right: 0; text-align: center; font-size: 12px; color: var(--muted); letter-spacing: .08em; padding: 0 16px; }
#overlay { position: fixed; inset: 0; display: flex; align-items: center; justify-content: center; padding: 16px;
  background: rgba(12,8,7,.78); z-index: 5; }
#overlay.hidden { display: none; }
.panel { max-width: 460px; width: 100%; text-align: left; }
h1 { font-size: clamp(40px, 9vw, 64px); margin: 0 0 4px; letter-spacing: .04em; text-transform: uppercase; line-height: 1; }
h1 em { color: var(--accent); font-style: normal; }
#sub { color: var(--muted); margin: 0 0 20px; }
dl { display: grid; grid-template-columns: auto 1fr; gap: 8px 16px; margin: 0 0 24px; }
dt { font-family: "Courier New", monospace; background: #2a211e; border: 1px solid #4a3b34; padding: 2px 10px; text-align: center; color: var(--fg); }
dd { margin: 0; align-self: center; color: var(--muted); }
button { font: inherit; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; background: var(--accent); color: #1a0e06;
  border: 0; padding: 14px 28px; cursor: pointer; }
button:hover { filter: brightness(1.1); }
button:focus-visible { outline: 3px solid var(--fg); outline-offset: 3px; }