/* 热机特有样式（通用样式见 ../shared/base.css） */

#eng { position: absolute; inset: 0; }
[hidden] { display: none !important; }

/* 读数 */
.readout .big { font-size: 18px; gap: 10px; font-variant-numeric: tabular-nums; }
.readout .big small { font-size: 12px; color: var(--muted); font-weight: normal; }
.readout .big b { font-weight: 700; color: var(--accent); }
.readout .eta b { color: #7ee081; }
.readout dd { font-size: 12px; font-variant-numeric: tabular-nums; }
#rNotes { margin: 8px 0 0; padding-left: 18px; font-size: 12px; color: var(--text); opacity: .9; }
#rNotes li { margin: 2px 0; }

/* 场景、按钮 */
.grid2, .grid3, .actions { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.grid3 { grid-template-columns: 1fr 1fr 1fr; }
.grid2, .grid3 { margin-bottom: 6px; }
.actions { margin-bottom: 8px; }
.grid2 button, .grid3 button, .actions button, .answer button { font: inherit; font-size: 12px; color: var(--text); background: var(--panel-2);
  border: 1px solid var(--line); border-radius: 8px; padding: 6px 0; cursor: pointer; }
.scenes button, .actions button { font-size: 13px; }
.grid2 button:hover, .grid3 button:hover, .actions button:hover, .answer button:hover { border-color: var(--accent); }
.grid2 button.on, .grid3 button.on { background: rgba(255,201,74,.14); border-color: var(--accent); color: var(--accent); }
#sceneNote { color: var(--text); opacity: .85; }
.calc { background: var(--panel-2); border-radius: 8px; padding: 6px 10px; margin: 6px 0; font-variant-numeric: tabular-nums; }
.calc dd b { color: var(--accent); }
.checks label { display: flex; align-items: center; gap: 8px; }
.formula-s { font-family: var(--mono); font-size: 13px; line-height: 1.7; margin: 0; padding: 6px 10px; background: var(--panel-2); border-radius: 6px; color: var(--accent); }

/* 练习 */
#quizBar { position: absolute; left: 50%; bottom: 44px; transform: translateX(-50%); z-index: 3; width: min(600px, calc(100% - 24px));
  padding: 10px 12px; border-radius: 12px; background: rgba(17,23,35,.94); border: 1px solid var(--line); }
#quizQ { margin: 0 0 6px; font-size: 14px; font-weight: 600; }
#quizMsg { margin: 0 0 6px; font-size: 13px; line-height: 1.6; }
#quizMsg:empty { display: none; }
#quizMsg b { margin-right: 4px; }
.answer { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.answer.one { grid-template-columns: 1fr; }
.answer.one button { text-align: left; padding: 6px 10px; }
.answer button { padding: 7px 4px; font-size: 13px; }
.answer button:disabled { opacity: .55; cursor: default; }
.answer button.on { opacity: 1; border-color: #7ee081; color: #7ee081; }
.answer button.no { opacity: 1; border-color: #ff7a59; color: #ff7a59; }
#quizBar .btns { display: flex; justify-content: flex-end; margin-top: 8px; }

@media (max-width: 760px) {
  #quizBar { bottom: 40px; padding: 8px 10px; }
  #quizQ { font-size: 13px; }
  .answer button { padding: 5px 4px; font-size: 12px; }
}
.checks.one { grid-template-columns: 1fr; }