:root {
  font-family: "DM Sans", "Inter", system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  color: #222;
  background-color: #f6f6f6;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.app {
  width: min(900px, 100%);
  background: #fff;
  border-radius: 18px;
  padding: 1.8rem;
  box-shadow: 0 30px 80px rgba(15, 23, 42, 0.12);
}

header {
  text-align: center;
  margin-bottom: 1.5rem;
}

header h1 {
  margin: 0 0 0.35rem;
  font-size: clamp(1.8rem, 2.4vw, 2.6rem);
}

.game-shell {
  position: relative;
  padding: 1.5rem;
  border: 2px dashed #d0d7de;
  border-radius: 16px;
  background: linear-gradient(180deg, #fff, #f2f2f2);
}

.credit-badge {
  position: absolute;
  top: 10px;
  left: 14px;
  background: rgba(15, 23, 42, 0.75);
  color: #fefce8;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
  pointer-events: none;
}

canvas {
  width: 100%;
  border-radius: 14px;
  background: #fdfdfd;
  border: 1px solid #e5e7eb;
  display: block;
}

.hud {
  margin-top: 0.75rem;
  display: flex;
  justify-content: space-between;
  font-variant-numeric: tabular-nums;
  font-size: 1.05rem;
}

.hidden {
  display: none;
}

.message {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  font-weight: 600;
  color: #475569;
  background: transparent;
  border: none;
  border-radius: 16px;
  text-align: center;
  padding: 0;
  pointer-events: none;
}

.message > * {
  background: rgba(255, 255, 255, 0.85);
  border-radius: 14px;
  padding: 1rem 1.4rem;
  box-shadow: 0 10px 35px rgba(15, 23, 42, 0.08);
}

.message.text-only {
  background: transparent;
  border: none;
  padding: 0;
  pointer-events: none;
}

.message-pill {
  background: rgba(255, 255, 255, 0.7);
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.35);
  padding: 0.85rem 1.5rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.12);
  pointer-events: none;
}

.retry-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.45rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #475569;
}

.retry-circle {
  width: 68px;
  height: 68px;
  border-radius: 50%;
  border: 3px solid #94a3b8;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.1rem;
  background: rgba(255, 255, 255, 0.85);
  color: #475569;
}

.retry-text {
  font-size: 1rem;
  font-weight: 600;
}