/* 共用 UI 元件（規格第 07 節）。顏色、間距、圓角、陰影一律取自 tokens.css */

/* Button：預設、hover、focus、pressed、disabled、busy；高度至少 48px */
.cs-game .cs-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--cs-space-2);
  min-height: var(--cs-hit); min-width: var(--cs-hit);
  padding: var(--cs-space-2) var(--cs-space-6);
  border-radius: var(--cs-radius-control);
  border: var(--cs-border-width) solid transparent;
  font-weight: 700; font-size: var(--cs-text-sm); line-height: 1.3; text-align: center;
  cursor: pointer; text-decoration: none;
  transition: background-color var(--cs-duration-fast) var(--cs-ease), transform var(--cs-duration-fast) var(--cs-ease), box-shadow var(--cs-duration-fast) var(--cs-ease);
}
.cs-game .cs-btn--primary { background: var(--cs-primary); color: var(--cs-on-primary); box-shadow: var(--cs-shadow-button); }
.cs-game .cs-btn--primary:hover { background: var(--cs-primary-hover); }
.cs-game .cs-btn--primary:active:not([aria-disabled="true"]) { background: var(--cs-primary-pressed); transform: translateY(2px); box-shadow: none; }
.cs-game .cs-btn--secondary { background: var(--cs-surface); color: var(--cs-primary); border-color: var(--cs-border); }
.cs-game .cs-btn--secondary:hover { background: var(--cs-surface-muted); }
.cs-game .cs-btn--secondary:active:not([aria-disabled="true"]) { transform: translateY(2px); }
.cs-game .cs-btn--ghost { background: transparent; color: var(--cs-primary); }
.cs-game .cs-btn--ghost:hover { background: var(--cs-surface-muted); }
.cs-game .cs-btn--block { width: 100%; }
.cs-game .cs-btn[aria-disabled="true"] { cursor: not-allowed; opacity: 1; background: var(--cs-surface-muted); color: var(--cs-text-muted); border-color: var(--cs-border); box-shadow: none; }
.cs-game .cs-btn[aria-busy="true"] { cursor: progress; }
.cs-game .cs-btn__spinner { width: 1em; height: 1em; border-radius: 50%; border: 2px solid currentColor; border-right-color: transparent; animation: cs-spin 0.8s linear infinite; }
.cs-game .cs-icon { width: 24px; height: 24px; flex: none; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.cs-game .cs-icon--sm { width: 20px; height: 20px; }

/* Card 與 Panel */
.cs-game .cs-card {
  background: var(--cs-surface); color: var(--cs-text);
  border: var(--cs-border-width) solid var(--cs-divider);
  border-radius: var(--cs-radius-card);
  box-shadow: var(--cs-shadow-card);
  padding: var(--cs-space-6);
  min-width: 0;
}
.cs-game .cs-panel { border-radius: var(--cs-radius-panel); }
.cs-game .cs-eyebrow { font-size: var(--cs-text-xs); color: var(--cs-text-muted); font-weight: 600; letter-spacing: .04em; }

/* Badge／狀態標籤：一定同時有文字，不只靠顏色 */
.cs-game .cs-badge {
  display: inline-flex; align-items: center; gap: var(--cs-space-1);
  padding: 2px var(--cs-space-3); border-radius: var(--cs-radius-pill);
  font-size: var(--cs-text-xs); font-weight: 700; line-height: 1.6;
  border: var(--cs-border-width) solid currentColor;
}
.cs-game .cs-badge--locked { color: var(--cs-text-muted); background: var(--cs-surface-muted); }
.cs-game .cs-badge--available { color: var(--cs-primary); background: var(--cs-surface); }
.cs-game .cs-badge--in-progress { color: var(--cs-on-accent); background: var(--cs-accent); border-color: var(--cs-on-accent); }
.cs-game .cs-badge--completed { color: var(--cs-success); background: var(--cs-success-bg); }
.cs-game .cs-badge--review { color: var(--cs-warning); background: var(--cs-warning-bg); }

/* CharacterCard：原生 radio，名稱常駐，選取時有勾號與文字 */
.cs-game .cs-char-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(150px, 100%), 1fr)); gap: var(--cs-space-3); border: 0; padding: 0; margin: 0; min-width: 0; }
.cs-game .cs-char-grid > legend { font-weight: 700; margin-bottom: var(--cs-space-3); padding: 0; }
.cs-game .cs-char-card {
  position: relative; display: flex; flex-direction: column; align-items: center; gap: var(--cs-space-2);
  padding: var(--cs-space-4) var(--cs-space-3); min-height: var(--cs-hit); min-width: 0;
  background: var(--cs-surface); border: var(--cs-border-width) solid var(--cs-border); border-radius: var(--cs-radius-card);
  cursor: pointer; text-align: center;
}
.cs-game .cs-char-card:hover { background: var(--cs-surface-muted); }
.cs-game .cs-char-card input { position: absolute; opacity: 0; inset: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; }
.cs-game .cs-char-card:has(input:focus-visible) { outline: var(--cs-focus-width) solid var(--cs-focus); outline-offset: var(--cs-focus-offset); }
.cs-game .cs-char-card:has(input:checked) { border: var(--cs-border-selected) solid var(--cs-primary); background: var(--cs-success-bg); padding: calc(var(--cs-space-4) - 1px) calc(var(--cs-space-3) - 1px); }
.cs-game .cs-char-card__art { width: 96px; height: 96px; display: grid; place-items: center; }
.cs-game .cs-char-card__name { font-weight: 700; font-size: var(--cs-text-md); line-height: 1.3; overflow-wrap: anywhere; }
.cs-game .cs-char-card__role { font-size: var(--cs-text-xs); color: var(--cs-text-muted); overflow-wrap: anywhere; }
.cs-game .cs-char-card__check { display: none; align-items: center; gap: var(--cs-space-1); font-size: var(--cs-text-xs); font-weight: 700; color: var(--cs-success); }
.cs-game .cs-char-card:has(input:checked) .cs-char-card__check { display: inline-flex; }

/* ProgressBar：原生 progress＋文字 */
.cs-game .cs-progress { display: flex; flex-direction: column; gap: var(--cs-space-1); min-width: 0; }
.cs-game .cs-progress__row { display: flex; justify-content: space-between; gap: var(--cs-space-2); font-size: var(--cs-text-xs); color: var(--cs-text-muted); }
.cs-game .cs-progress__value { font-variant-numeric: tabular-nums; color: var(--cs-text); font-weight: 700; }
.cs-game .cs-progress progress { appearance: none; width: 100%; height: 12px; border: var(--cs-border-width) solid var(--cs-border); border-radius: var(--cs-radius-pill); background: var(--cs-surface-muted); overflow: hidden; }
.cs-game .cs-progress progress::-webkit-progress-bar { background: var(--cs-surface-muted); }
.cs-game .cs-progress progress::-webkit-progress-value { background: var(--cs-primary); border-radius: var(--cs-radius-pill); }
.cs-game .cs-progress progress::-moz-progress-bar { background: var(--cs-primary); border-radius: var(--cs-radius-pill); }

/* ChapterCard 與 ChapterNode */
.cs-game .cs-chapter-card { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: var(--cs-space-4); align-items: start; }
.cs-game .cs-chapter-card__art { width: 72px; height: 72px; border-radius: var(--cs-radius-control); background: var(--cs-surface-muted); display: grid; place-items: center; overflow: hidden; }
.cs-game .cs-chapter-card__body { display: flex; flex-direction: column; gap: var(--cs-space-2); min-width: 0; }
.cs-game .cs-chapter-card__title { font-family: var(--cs-font-display); font-size: var(--cs-text-md); line-height: 1.35; }
.cs-game .cs-chapter-card__reason { font-size: var(--cs-text-xs); color: var(--cs-text-muted); }
.cs-game .cs-map { position: relative; width: 100%; aspect-ratio: 16 / 10; max-width: 100%; border-radius: var(--cs-radius-panel); overflow: hidden; background: var(--cs-surface-muted); border: var(--cs-border-width) solid var(--cs-divider); }
.cs-game .cs-map__base { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.cs-game .cs-map__placeholder { position: absolute; inset: 0; background-image: radial-gradient(var(--cs-divider) 1.5px, transparent 1.6px); background-size: 24px 24px; }
.cs-game .cs-node {
  position: absolute; transform: translate(-50%, -50%);
  display: inline-flex; align-items: center; gap: var(--cs-space-2);
  min-height: var(--cs-hit); min-width: var(--cs-hit); padding: var(--cs-space-1) var(--cs-space-3) var(--cs-space-1) var(--cs-space-1);
  border-radius: var(--cs-radius-pill); border: var(--cs-border-selected) solid var(--cs-border);
  background: var(--cs-surface); color: var(--cs-text); font-weight: 700; font-size: var(--cs-text-xs);
  cursor: pointer; box-shadow: var(--cs-shadow-card);
}
.cs-game .cs-node__num { width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center; background: var(--cs-surface-muted); font-variant-numeric: tabular-nums; flex: none; }
.cs-game .cs-node--available { border-color: var(--cs-primary); }
.cs-game .cs-node--available .cs-node__num { background: var(--cs-primary); color: var(--cs-on-primary); }
.cs-game .cs-node--in-progress .cs-node__num { background: var(--cs-accent); color: var(--cs-on-accent); }
.cs-game .cs-node--completed .cs-node__num { background: var(--cs-success-bg); color: var(--cs-success); }
.cs-game .cs-node--review .cs-node__num { background: var(--cs-warning-bg); color: var(--cs-warning); }
.cs-game .cs-node--locked { cursor: not-allowed; color: var(--cs-text-muted); border-style: dashed; }
.cs-game .cs-node[aria-current="step"] { box-shadow: 0 0 0 4px var(--cs-accent), var(--cs-shadow-card); }

/* QuestionCard、ChoiceOption、NumericField */
.cs-game .cs-question { display: flex; flex-direction: column; gap: var(--cs-space-4); }
.cs-game .cs-question__meta { display: flex; justify-content: space-between; align-items: center; gap: var(--cs-space-3); flex-wrap: wrap; }
.cs-game .cs-question__prompt { font-size: var(--cs-text-md); font-weight: 700; line-height: 1.6; }
.cs-game .cs-choices { border: 0; margin: 0; padding: 0; display: flex; flex-direction: column; gap: var(--cs-space-3); min-width: 0; }
.cs-game .cs-choices > legend { padding: 0; margin-bottom: var(--cs-space-3); font-size: var(--cs-text-md); font-weight: 700; line-height: 1.6; }
.cs-game .cs-choices__hint { font-size: var(--cs-text-xs); color: var(--cs-text-muted); margin-top: calc(var(--cs-space-2) * -1); }
.cs-game .cs-choice {
  position: relative; display: flex; align-items: flex-start; gap: var(--cs-space-3);
  min-height: var(--cs-hit); padding: var(--cs-space-3) var(--cs-space-4);
  border: var(--cs-border-width) solid var(--cs-border); border-radius: var(--cs-radius-control);
  background: var(--cs-surface); cursor: pointer; overflow-wrap: anywhere;
}
.cs-game .cs-choice:hover { background: var(--cs-surface-muted); }
.cs-game .cs-choice input { width: 22px; height: 22px; margin: 3px 0 0; flex: none; accent-color: var(--cs-primary); cursor: pointer; }
.cs-game .cs-choice:has(input:focus-visible), .cs-game .cs-segmented label:has(input:focus-visible) { outline: var(--cs-focus-width) solid var(--cs-focus); outline-offset: var(--cs-focus-offset); }
.cs-game .cs-choice:has(input:checked) { border: var(--cs-border-selected) solid var(--cs-primary); padding: calc(var(--cs-space-3) - 1px) calc(var(--cs-space-4) - 1px); }
.cs-game .cs-choice__label { flex: 1; min-width: 0; }
.cs-game .cs-choice__verdict { display: inline-flex; align-items: center; gap: var(--cs-space-1); font-size: var(--cs-text-xs); font-weight: 700; flex: none; }
.cs-game .cs-choice--correct { border: var(--cs-border-selected) solid var(--cs-success); background: var(--cs-success-bg); }
.cs-game .cs-choice--correct .cs-choice__verdict { color: var(--cs-success); }
.cs-game .cs-choice--incorrect { border: var(--cs-border-selected) solid var(--cs-error); background: var(--cs-error-bg); }
.cs-game .cs-choice--incorrect .cs-choice__verdict { color: var(--cs-error); }
.cs-game .cs-choice[aria-disabled="true"] { cursor: default; }
.cs-game .cs-choice--tried { background: var(--cs-surface-muted); color: var(--cs-text-muted); border-style: dashed; }
.cs-game .cs-choice--tried .cs-choice__verdict { color: var(--cs-text-muted); }
.cs-game .cs-field { display: flex; flex-direction: column; gap: var(--cs-space-2); }
.cs-game .cs-field__label { font-weight: 700; }
.cs-game .cs-field__hint { font-size: var(--cs-text-xs); color: var(--cs-text-muted); }
.cs-game .cs-field__control { display: flex; align-items: stretch; max-width: 22rem; }
.cs-game .cs-field__control input {
  flex: 1; min-width: 0; min-height: var(--cs-hit); padding: var(--cs-space-2) var(--cs-space-3);
  border: var(--cs-border-width) solid var(--cs-border); border-right: 0; border-radius: var(--cs-radius-control) 0 0 var(--cs-radius-control);
  background: var(--cs-surface); font-variant-numeric: tabular-nums;
}
.cs-game .cs-field__unit { display: grid; place-items: center; padding: 0 var(--cs-space-3); border: var(--cs-border-width) solid var(--cs-border); border-radius: 0 var(--cs-radius-control) var(--cs-radius-control) 0; background: var(--cs-surface-muted); color: var(--cs-text-muted); font-size: var(--cs-text-xs); white-space: nowrap; }
.cs-game .cs-field--error .cs-field__control input { border: var(--cs-border-selected) solid var(--cs-error); border-right: 0; }
.cs-game .cs-field__error { display: flex; gap: var(--cs-space-1); align-items: flex-start; color: var(--cs-error); font-size: var(--cs-text-xs); font-weight: 700; }

/* FeedbackPanel：有標題、圖示與文字，不只靠顏色 */
.cs-game .cs-feedback { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: var(--cs-space-2) var(--cs-space-3); padding: var(--cs-space-4); border-radius: var(--cs-radius-control); border: var(--cs-border-width) solid currentColor; }
.cs-game .cs-feedback__title { font-weight: 700; font-size: var(--cs-text-md); line-height: 1.4; }
.cs-game .cs-feedback__body { grid-column: 2; color: var(--cs-text); }
.cs-game .cs-feedback__source { grid-column: 2; font-size: var(--cs-text-xs); color: var(--cs-text-muted); }
.cs-game .cs-feedback--correct { color: var(--cs-success); background: var(--cs-success-bg); }
.cs-game .cs-feedback--incorrect { color: var(--cs-error); background: var(--cs-error-bg); }
.cs-game .cs-feedback--info { color: var(--cs-warning); background: var(--cs-warning-bg); }

/* Stars／ScoreBadge */
.cs-game .cs-stars { display: inline-flex; gap: 2px; color: var(--cs-accent); }
.cs-game .cs-stars svg { width: 28px; height: 28px; fill: currentColor; stroke: none; }
.cs-game .cs-stars .is-off { color: var(--cs-divider); }
.cs-game .cs-stars--lg svg { width: 44px; height: 44px; }
.cs-game .cs-score { display: flex; align-items: baseline; gap: var(--cs-space-2); }
.cs-game .cs-score__value { font-family: var(--cs-font-display); font-size: var(--cs-text-xl); font-variant-numeric: tabular-nums; }

/* Dialog：原生 dialog，Esc 關閉、焦點限制由瀏覽器提供 */
.cs-game .cs-dialog, .cs-dialog.cs-game {
  width: min(32rem, calc(100vw - 2 * var(--cs-space-4))); max-height: calc(100dvh - 2 * var(--cs-space-4));
  padding: var(--cs-space-6); border: var(--cs-border-width) solid var(--cs-border); border-radius: var(--cs-radius-panel);
  background: var(--cs-surface); color: var(--cs-text); box-shadow: var(--cs-shadow-card);
}
.cs-dialog::backdrop { background: rgb(10 25 18 / 55%); }
.cs-dialog .cs-dialog__body { margin: var(--cs-space-3) 0 var(--cs-space-6); }
.cs-dialog .cs-dialog__actions { display: flex; flex-wrap: wrap-reverse; justify-content: flex-end; gap: var(--cs-space-3); }

/* SaveStatus／Toast：不搶焦點；錯誤不自動消失 */
.cs-game .cs-status { display: inline-flex; align-items: center; gap: var(--cs-space-2); padding: var(--cs-space-2) var(--cs-space-3); border-radius: var(--cs-radius-control); font-size: var(--cs-text-xs); font-weight: 700; border: var(--cs-border-width) solid currentColor; }
.cs-game .cs-status--saved { color: var(--cs-success); background: var(--cs-success-bg); }
.cs-game .cs-status--saving { color: var(--cs-text-muted); background: var(--cs-surface-muted); }
.cs-game .cs-status--memory, .cs-game .cs-status--conflict { color: var(--cs-warning); background: var(--cs-warning-bg); }
.cs-game .cs-status--error { color: var(--cs-error); background: var(--cs-error-bg); }
.cs-game .cs-toast-region { position: fixed; z-index: var(--cs-z-toast); left: 50%; bottom: calc(var(--cs-space-4) + env(safe-area-inset-bottom, 0px)); transform: translateX(-50%); width: min(28rem, calc(100% - 2 * var(--cs-space-4))); display: flex; flex-direction: column; gap: var(--cs-space-2); }

/* AssetImage 與 placeholder */
.cs-game .cs-asset { display: block; object-fit: contain; }
.cs-game .cs-asset-placeholder {
  display: grid; place-items: center; width: 100%; height: 100%; aspect-ratio: 1;
  border: var(--cs-border-selected) dashed var(--cs-border); border-radius: var(--cs-radius-control);
  background: var(--cs-surface-muted); color: var(--cs-text-muted); font-family: var(--cs-font-display); font-size: var(--cs-text-lg);
}
.cs-game .cs-asset-legacy { display: grid; place-items: center; width: 100%; height: 100%; }
.cs-game .cs-asset-legacy svg { width: 100%; height: 100%; }

/* SettingsPanel */
.cs-game .cs-settings { display: flex; flex-direction: column; gap: var(--cs-space-6); }
.cs-game .cs-segmented { border: 0; padding: 0; margin: 0; display: flex; flex-direction: column; gap: var(--cs-space-2); min-width: 0; }
.cs-game .cs-segmented > legend { font-weight: 700; padding: 0; margin-bottom: var(--cs-space-2); }
.cs-game .cs-segmented__options { display: flex; flex-wrap: wrap; gap: var(--cs-space-2); }
.cs-game .cs-segmented label { position: relative; display: inline-flex; align-items: center; gap: var(--cs-space-2); min-height: var(--cs-hit); padding: var(--cs-space-2) var(--cs-space-4); border: var(--cs-border-width) solid var(--cs-border); border-radius: var(--cs-radius-pill); background: var(--cs-surface); cursor: pointer; }
.cs-game .cs-segmented label:has(input:checked) { border: var(--cs-border-selected) solid var(--cs-primary); background: var(--cs-success-bg); padding: calc(var(--cs-space-2) - 1px) calc(var(--cs-space-4) - 1px); font-weight: 700; }
.cs-game .cs-segmented input { accent-color: var(--cs-primary); width: 18px; height: 18px; margin: 0; }

/* 頂部列：sticky 時預留安全區，不遮住焦點 */
.cs-game .cs-topbar { position: sticky; top: env(safe-area-inset-top, 0px); z-index: var(--cs-z-sticky); display: flex; align-items: center; gap: var(--cs-space-3); padding: var(--cs-space-2) 0; background: var(--cs-bg); }
.cs-game .cs-topbar__title { flex: 1; min-width: 0; font-weight: 700; overflow-wrap: anywhere; }
.cs-game { scroll-padding-top: calc(var(--cs-hit) + var(--cs-space-6)); }