body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f7f7f4;
  color: #171717;
}

a {
  color: inherit;
}

.site-header {
  padding: 24px 28px 12px;
  border-bottom: 1px solid #d8d8d2;
}

.site-header h1 {
  margin: 0;
  font-size: 28px;
  letter-spacing: 0;
}

.site-header p {
  max-width: 760px;
  margin: 8px 0 0;
  color: #555;
  line-height: 1.45;
}

.game-section {
  padding: 24px 28px 6px;
}

.game-section h2 {
  margin: 0;
  font-size: 18px;
}

.section-note {
  margin: 4px 0 14px;
  color: #666;
  line-height: 1.4;
}

.game-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px;
}

.game-card {
  display: grid;
  gap: 10px;
  min-height: 250px;
  padding: 14px;
  border: 1px solid #d8d8d2;
  border-radius: 6px;
  background: #fff;
  text-decoration: none;
}

.game-card:hover {
  border-color: #999;
}

.game-card h3 {
  margin: 0;
  font-size: 17px;
}

.game-meta {
  margin-top: 2px;
  color: #777;
  font-size: 13px;
}

.game-card p {
  margin: 0;
  color: #555;
  line-height: 1.4;
}

.board-preview {
  overflow: hidden;
  min-height: 120px;
  margin: 0;
  padding: 10px;
  border-radius: 4px;
  background: #161616;
  color: #f2f2e9;
  font: 15px/1.1 "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  white-space: pre;
}

.game-page {
  padding: 0 24px 32px;
}

.game-nav {
  padding: 18px 0;
}

.game-shell {
  max-width: 980px;
}

.game-shell h1 {
  margin: 0 0 14px;
  font-size: 26px;
}

.scratch-panel {
  max-width: 760px;
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid #d8d8d2;
}

.scratch-panel button {
  margin: 0 8px 8px 0;
  padding: 7px 10px;
  border: 1px solid #aaa;
  border-radius: 4px;
  background: #fff;
  color: #171717;
  font: inherit;
  cursor: pointer;
}

.scratch-panel button:hover {
  border-color: #555;
}

.scratch-editor[hidden] {
  display: none;
}

.scratch-board {
  box-sizing: border-box;
  width: 100%;
  min-height: 220px;
  margin: 8px 0 10px;
  padding: 10px;
  border: 1px solid #bdbdb7;
  border-radius: 4px;
  background: #fff;
  color: #171717;
  font: 15px/1.15 "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  white-space: pre;
}

.scratch-errors {
  min-height: 20px;
  margin: 4px 0 0;
  color: #a32626;
  font: 14px/1.35 "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  white-space: pre-wrap;
}

@media (max-width: 700px) {
  .site-header,
  .game-section {
    padding-left: 16px;
    padding-right: 16px;
  }

  .game-page {
    padding-left: 16px;
    padding-right: 16px;
  }
}