:root {
  --bg-ink: #0d1118;
  --panel: #f6f8ea;
  --accent: #f25c3d;
  --accent-2: #0f7bcb;
  --line: #111;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  margin: 0;
}

body {
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  color: #f5f6fb;
  background:
    radial-gradient(circle at 20% 10%, #2a5f79, transparent 35%),
    radial-gradient(circle at 80% 90%, #2f6b3f, transparent 25%),
    linear-gradient(160deg, #091019 0%, #15222f 55%, #0d1419 100%);
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 1rem;
}

.game-wrap {
  width: min(1280px, 100%);
  display: grid;
  gap: 0.75rem;
}

.hud-bar {
  background: rgba(246, 248, 234, 0.18);
  border: 2px solid rgba(246, 248, 234, 0.38);
  border-radius: 14px;
  padding: 0.65rem 0.9rem;
  backdrop-filter: blur(4px);
}

.hud-bar h1 {
  margin: 0;
  font-size: clamp(1.1rem, 2.3vw, 1.55rem);
  color: #fff0d9;
}

.hud-bar p {
  margin: 0.25rem 0 0;
  font-size: 0.93rem;
  color: #deecf6;
}

kbd {
  font-family: inherit;
  font-weight: 700;
  border: 1px solid #a9bfd0;
  border-bottom-width: 2px;
  border-radius: 5px;
  padding: 0 0.35rem;
  background: #eef6ff;
  color: #102532;
}

.canvas-shell {
  position: relative;
  border: 3px solid #f8e28b;
  border-radius: 14px;
  overflow: hidden;
  box-shadow:
    0 18px 35px rgba(0, 0, 0, 0.4),
    0 0 0 2px rgba(4, 13, 20, 0.7) inset;
}

canvas {
  width: 100%;
  height: auto;
  display: block;
  background: #6bd7ff;
}

.overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(8, 13, 20, 0.62);
}

.overlay.hidden {
  display: none;
}

.panel {
  min-width: min(92%, 350px);
  background: #f8f3de;
  color: #1f282f;
  border: 3px solid #1f282f;
  border-radius: 12px;
  text-align: center;
  padding: 1rem;
}

.panel h2 {
  margin: 0;
  color: #8f1b1b;
}

.panel p {
  margin: 0.45rem 0 0.9rem;
}

.panel button {
  border: 2px solid #161c26;
  background: #1e9aed;
  color: white;
  border-radius: 9px;
  font-size: 1rem;
  font-weight: 700;
  padding: 0.5rem 0.9rem;
  cursor: pointer;
}

.panel button:hover {
  background: #1679ba;
}

.touch-controls {
  display: none;
  gap: 0.7rem;
}

.move-btn {
  flex: 1;
  border-radius: 10px;
  border: 2px solid #d9e7f2;
  background: #183242;
  color: #f4faff;
  font-size: 1rem;
  font-weight: 700;
  padding: 0.8rem 0;
}

.move-btn:active {
  transform: translateY(1px);
}

@media (max-width: 860px) {
  .touch-controls {
    display: flex;
  }
}