:root {
  --sky: #7ec8e3;
  --wood: #6b3f1d;
  --ink: #123043;
}

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

body {
  min-height: 100%;
  background: linear-gradient(#d7f0ff, #8ec6e6 40%, #0b3a4a);
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  color: var(--ink);
}

.wrap {
  max-width: 940px;
  margin: 0 auto;
  padding: 16px 12px 24px;
}

header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-end;
  margin-bottom: 10px;
}

.title h1 {
  letter-spacing: 0.18em;
  font-size: 28px;
  color: #0d3b52;
}

.title p { color: #24556c; font-size: 14px; margin-top: 2px; }

.hud {
  display: flex;
  gap: 14px;
  background: rgba(255,255,255,0.55);
  border: 2px solid #0d3b52;
  border-radius: 10px;
  padding: 8px 12px;
}

.hud div { min-width: 64px; }
.hud span {
  display: block;
  font-size: 10px;
  letter-spacing: 0.12em;
  color: #3d6d84;
}
.hud b { font-size: 22px; font-variant-numeric: tabular-nums; }

canvas {
  width: 100%;
  height: auto;
  display: block;
  border: 4px solid #3a2412;
  border-radius: 8px;
  background: #4aa0c8;
  cursor: pointer;
  box-shadow: 0 12px 30px rgba(10, 30, 40, 0.25);
}

.help {
  margin-top: 10px;
  text-align: center;
  color: #123043;
  font-size: 14px;
}