:root {
  color-scheme: dark;
  --bg: #101018;
  --panel: #181827;
  --ink: #f8f7e8;
  --muted: #9ea3c8;
  --accent: #f6c945;
  --hot: #ff5572;
  --cool: #4ee6c2;
  --blue: #5ca8ff;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(92,168,255,.22), transparent 35%),
    radial-gradient(circle at bottom right, rgba(255,85,114,.16), transparent 40%),
    var(--bg);
  color: var(--ink);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}
.shell { width: min(1120px, calc(100vw - 28px)); margin: 0 auto; padding: 28px 0 40px; }
.hero { display: flex; justify-content: space-between; gap: 20px; align-items: end; margin-bottom: 18px; }
.eyebrow { color: var(--cool); text-transform: uppercase; letter-spacing: .18em; margin: 0 0 4px; font-size: 12px; }
h1 { margin: 0; font-size: clamp(42px, 8vw, 86px); letter-spacing: -0.07em; text-shadow: 5px 5px 0 #000; }
.tagline { margin: 6px 0 0; color: var(--muted); }
.scoreboard { display: grid; grid-template-columns: repeat(3, minmax(78px, 1fr)); gap: 8px; min-width: 300px; }
.scoreboard div, .panels article {
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.015));
  border: 2px solid rgba(255,255,255,.12);
  box-shadow: 0 10px 0 rgba(0,0,0,.25);
  border-radius: 16px;
  padding: 12px;
}
.scoreboard span { display: block; color: var(--accent); font-size: 30px; font-weight: 900; }
.scoreboard small { color: var(--muted); text-transform: uppercase; letter-spacing: .12em; }
.game-card { position: relative; border-radius: 22px; overflow: hidden; border: 3px solid rgba(255,255,255,.14); box-shadow: 0 18px 0 rgba(0,0,0,.32), 0 0 60px rgba(78,230,194,.08); background: #090912; }
canvas { width: 100%; display: block; image-rendering: pixelated; }
.banner { position: absolute; inset: auto 20px 20px 20px; display: flex; flex-wrap: wrap; gap: 10px 18px; align-items: center; justify-content: space-between; padding: 14px 16px; border-radius: 14px; background: rgba(9,9,18,.86); border: 2px solid rgba(246,201,69,.45); color: var(--ink); backdrop-filter: blur(4px); }
.banner.hidden { display: none; }
kbd { background: #05050b; border: 1px solid rgba(255,255,255,.22); border-bottom-width: 3px; padding: 2px 7px; border-radius: 7px; color: var(--accent); font: inherit; }
.command-line { display: grid; grid-template-columns: auto 1fr auto; gap: 10px; align-items: center; margin: 22px 0; background: var(--panel); border: 2px solid rgba(255,255,255,.13); border-radius: 18px; padding: 12px; }
.command-line label { color: var(--cool); text-transform: uppercase; letter-spacing: .12em; font-size: 12px; }
input { width: 100%; border: 0; outline: 0; border-radius: 12px; background: #080812; color: var(--ink); padding: 15px 16px; font: 700 20px/1 ui-monospace, monospace; box-shadow: inset 0 0 0 2px rgba(255,255,255,.08); }
input:focus { box-shadow: inset 0 0 0 2px var(--cool), 0 0 24px rgba(78,230,194,.18); }
button { border: 0; border-radius: 12px; background: var(--accent); color: #171000; padding: 14px 18px; font: 900 16px/1 ui-monospace, monospace; cursor: pointer; box-shadow: 0 5px 0 #8f6810; }
button:active { transform: translateY(3px); box-shadow: 0 2px 0 #8f6810; }
.panels { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
h2 { margin: 0 0 8px; color: var(--blue); font-size: 16px; text-transform: uppercase; letter-spacing: .12em; }
ul { margin: 0; padding-left: 18px; color: var(--muted); }
li { margin: 6px 0; }
#hint { color: var(--accent); font-size: 22px; font-weight: 900; min-height: 28px; }
#log { color: var(--muted); min-height: 24px; }
@media (max-width: 760px) {
  .hero, .panels { grid-template-columns: 1fr; display: grid; }
  .scoreboard { min-width: 0; }
  .command-line { grid-template-columns: 1fr; }
}

/* Urban Run arcade glow-up */
.game-card { border-color: rgba(78,230,194,.34); box-shadow: 0 18px 0 rgba(0,0,0,.36), 0 0 80px rgba(78,230,194,.16), inset 0 0 0 2px rgba(246,201,69,.08); }
canvas { background: #050507; }
h1 { color: #fff7cf; text-shadow: 4px 4px 0 #000, 0 0 22px rgba(246,201,69,.42); }
.scoreboard div { border-color: rgba(78,230,194,.24); }
.command-line { box-shadow: 0 10px 0 rgba(0,0,0,.26), 0 0 40px rgba(92,168,255,.08); }