* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #111;
  color: #eee;
}

.app-shell {
  display: grid;
  grid-template-columns: 320px 1fr;
  min-height: 100vh;
}

.sidebar {
  padding: 16px;
  border-right: 1px solid #2a2a2a;
  background: #181818;
  overflow: auto;
}

.sidebar h1 {
  margin: 0 0 4px;
  font-size: 1.5rem;
}

.muted {
  margin-top: 0;
  color: #a5a5a5;
}

label,
input,
button {
  display: block;
  width: 100%;
}

input,
button {
  margin-top: 8px;
  margin-bottom: 10px;
  padding: 10px;
  border: 1px solid #333;
  border-radius: 6px;
}

input {
  background: #222;
  color: #efefef;
}

button {
  background: #2f7dff;
  color: #fff;
  cursor: pointer;
}

button:hover {
  background: #2068df;
}

.panel {
  margin-top: 12px;
  padding: 12px;
  border-radius: 8px;
  border: 1px solid #2f2f2f;
  background: #1f1f1f;
}

.panel h2 {
  margin: 0 0 8px;
  font-size: 1rem;
}

.panel p {
  margin: 6px 0;
}

#logList {
  margin: 0;
  padding-left: 20px;
  height: 180px;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-gutter: stable;
}

#logList li {
  overflow-wrap: anywhere;
}

.game-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 16px;
}

#game {
  border: 1px solid #2d2d2d;
  border-radius: 8px;
  overflow: hidden;
  width: min(100%, 800px);
  margin: 0 auto;
}

#game canvas {
  display: block;
  width: 100% !important;
  height: auto !important;
}

.touch-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.touch-btn {
  min-height: 44px;
  font-size: 1.25rem;
  font-weight: 700;
  padding: 8px;
}

@media (max-width: 900px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .game-wrap {
    padding: 10px;
    align-items: flex-start;
  }

  #game {
    width: calc(100vw - 20px);
    max-width: 100%;
  }

  .sidebar {
    border-right: 0;
    border-top: 1px solid #2a2a2a;
    padding: 12px;
  }
}

@media (max-width: 480px) {
  .sidebar h1 {
    font-size: 1.2rem;
  }

  .panel {
    padding: 10px;
  }

  input,
  button {
    padding: 9px;
    margin-top: 6px;
    margin-bottom: 8px;
  }

  .touch-btn {
    min-height: 48px;
    font-size: 1.15rem;
  }

  #logList {
    height: 120px;
  }
}