*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  background: #0d1117;
  color: #c9d1d9;
  line-height: 1.5;
  min-height: 100vh;
}

a {
  color: #58a6ff;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid #21262d;
  background: #161b22;
}

.brand {
  font-size: 1.25rem;
  font-weight: 700;
  color: #f0f6fc;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.status-pill {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  background: rgba(63, 185, 80, 0.15);
  color: #3fb950;
  border: 1px solid rgba(63, 185, 80, 0.4);
}

.lang-switch {
  display: flex;
  gap: 0.25rem;
}

.lang-btn {
  background: transparent;
  border: 1px solid #30363d;
  color: #8b949e;
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 600;
}

.lang-btn:hover {
  border-color: #58a6ff;
  color: #c9d1d9;
}

.lang-btn.active {
  background: #21262d;
  border-color: #58a6ff;
  color: #f0f6fc;
}

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
}

.hero h1 {
  margin: 0 0 0.5rem;
  font-size: 1.75rem;
  color: #f0f6fc;
}

.hero p {
  margin: 0 0 2rem;
  color: #8b949e;
  max-width: 42rem;
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: #161b22;
  border: 1px solid #21262d;
  border-radius: 8px;
  padding: 1rem 1.25rem;
}

.stat-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #8b949e;
  margin-bottom: 0.35rem;
}

.stat-value {
  font-family: ui-monospace, 'Cascadia Code', monospace;
  font-size: 1.5rem;
  font-weight: 700;
  color: #58a6ff;
}

.game-section {
  background: #161b22;
  border: 1px solid #21262d;
  border-radius: 12px;
  padding: 1.5rem;
}

.game-section h2 {
  margin: 0 0 0.25rem;
  font-size: 1.15rem;
  color: #f0f6fc;
}

.game-subtitle {
  margin: 0 0 1rem;
  font-size: 0.875rem;
  color: #8b949e;
}

.game-wrap {
  position: relative;
  display: inline-block;
  border: 1px solid #30363d;
  border-radius: 8px;
  overflow: hidden;
}

#game {
  display: block;
  background: #0d1117;
}

.overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  background: rgba(13, 17, 23, 0.88);
}

.overlay.hidden {
  display: none;
}

.overlay p {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
  color: #f0f6fc;
}

.game-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-top: 1rem;
}

.hud {
  font-family: ui-monospace, monospace;
  font-size: 0.9rem;
  color: #8b949e;
}

.hud strong {
  color: #f0f6fc;
}

.btn {
  background: #21262d;
  border: 1px solid #30363d;
  color: #c9d1d9;
  padding: 0.45rem 1rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 600;
}

.btn:hover {
  background: #30363d;
  border-color: #8b949e;
}

.btn-primary {
  background: #238636;
  border-color: #2ea043;
  color: #fff;
}

.btn-primary:hover {
  background: #2ea043;
}

footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid #21262d;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  font-size: 0.875rem;
  color: #8b949e;
}

@media (max-width: 480px) {
  #game {
    width: 100%;
    height: auto;
    max-width: 400px;
  }
}