/* ==========================================================
   数字記憶テスト - style.css
   テーマはストループ効果テストに統一
   すべてのクラスに .nummem- プレフィックスを付与（WP干渉防止）
   ========================================================== */

.nummem-body {
  margin: 0;
  background: #e9ecef;
}

.nummem-hidden { display: none !important; }

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

.nummem-app {
  /* ---- CSS変数（ストループ効果テストと共通） ---- */
  --nummem-red: #E03131;
  --nummem-blue: #1971C2;
  --nummem-green: #2F9E44;
  --nummem-yellow: #F59F00;
  --nummem-bg: #f4f6fb;
  --nummem-card: #ffffff;
  --nummem-text: #212529;
  --nummem-muted: #868e96;
  --nummem-primary: #3b5bdb;
  --nummem-primary-dark: #2f49b3;
  --nummem-border: #dee2e6;
  --nummem-radius: 16px;
  --nummem-mono: "Roboto Mono", Consolas, "SF Mono", Menlo, "Courier New", monospace;

  position: relative;
  display: flex;
  flex-direction: column;
  max-width: 560px;
  min-height: 640px;
  margin: 0 auto;
  padding: 16px 16px max(16px, env(safe-area-inset-bottom));
  overflow: hidden;
  background: var(--nummem-bg);
  color: var(--nummem-text);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN",
    "Yu Gothic", "Meiryo", "Noto Sans JP", sans-serif;
  font-size: 16px;
  line-height: 1.5;
  text-align: left;
  -webkit-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
  -webkit-text-size-adjust: 100%;
  touch-action: manipulation;
}

/* 詳細度0のリセット（個別クラスのmargin等を邪魔しない） */
:where(.nummem-app) :is(h1, h2, p, dl, dd, ul, ol) { margin: 0; padding: 0; }
:where(.nummem-app) :is(ul, ol) { list-style: none; }

/* ---------- トップバー（戻る／サウンド） ---------- */
.nummem-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 44px;
  margin-bottom: 4px;
}
.nummem-app a.nummem-back,
.nummem-app .nummem-sound-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: var(--nummem-card);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  text-decoration: none;
  cursor: pointer;
  touch-action: manipulation;
  transition: transform 0.08s ease, background-color 0.15s ease;
}
.nummem-app a.nummem-back { color: var(--nummem-primary); }
.nummem-app .nummem-sound-btn { color: var(--nummem-muted); }
.nummem-app a.nummem-back:hover { background: #edf2ff; color: var(--nummem-primary-dark); }
.nummem-app .nummem-sound-btn:hover { background: #f1f3f5; }
.nummem-app a.nummem-back:active,
.nummem-app .nummem-sound-btn:active { transform: scale(0.94); }
.nummem-back svg,
.nummem-sound-btn svg { display: block; width: 22px; height: 22px; }
.nummem-app a.nummem-back:focus-visible,
.nummem-sound-btn:focus-visible,
.nummem-btn:focus-visible,
.nummem-key:focus-visible { outline: 3px solid #ffd43b; outline-offset: 2px; }

/* ---------- 画面共通 ---------- */
.nummem-screen {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 16px;
}
.nummem-screen--center { align-items: center; justify-content: center; text-align: center; }

.nummem-card {
  background: var(--nummem-card);
  border-radius: var(--nummem-radius);
  padding: 16px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

/* ---------- ボタン ---------- */
.nummem-btn {
  display: block;
  width: 100%;
  min-height: 52px;
  padding: 12px 20px;
  border: 0;
  border-radius: 999px;
  font: inherit;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.3;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  touch-action: manipulation;
  -webkit-user-select: none;
  user-select: none;
  transition: transform 0.08s ease, background-color 0.15s ease, opacity 0.15s ease;
}
.nummem-btn:active:not(:disabled) { transform: scale(0.97); }
.nummem-btn:disabled { opacity: 0.4; cursor: not-allowed; }

.nummem-btn--primary { background: var(--nummem-primary); color: #fff; box-shadow: 0 4px 0 var(--nummem-primary-dark); }
.nummem-btn--primary:hover:not(:disabled) { background: #4263eb; }
.nummem-btn--cta { min-height: 64px; font-size: 1.25rem; }
.nummem-app a.nummem-btn--x {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  background: #111; color: #fff; text-decoration: none;
}
.nummem-app a.nummem-btn--x:hover { background: #333; color: #fff; }
.nummem-btn--ghost { background: transparent; color: var(--nummem-muted); border: 1px solid var(--nummem-border); min-height: 44px; }

/* ---------- ① スタート画面 ---------- */
.nummem-title {
  text-align: center;
  font-size: clamp(1.4rem, 5.5vw, 1.8rem);
  font-weight: 800;
  line-height: 1.35;
  padding-top: 4px;
}
.nummem-title__sub { display: block; font-size: 0.7em; color: var(--nummem-primary); }

.nummem-rule__lead { text-align: center; font-size: 1.05rem; margin-bottom: 12px; }
.nummem-rule__lead strong { color: var(--nummem-primary); }

.nummem-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 14px;
}
.nummem-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 10px 4px;
  text-align: center;
  font-size: 0.7rem;
  color: var(--nummem-muted);
  background: var(--nummem-bg);
  border: 2px solid transparent;
  border-radius: 12px;
  animation: nummem-step-glow 4.5s infinite;
}
.nummem-step b { font-size: 0.85rem; color: var(--nummem-text); }
.nummem-step svg { width: 40px; height: 40px; color: var(--nummem-primary); }
.nummem-step--2 { animation-delay: 1.5s; }
.nummem-step--3 { animation-delay: 3s; }
@keyframes nummem-step-glow {
  0%, 30%, 100% { border-color: transparent; transform: none; }
  10%, 22% { border-color: var(--nummem-primary); transform: translateY(-3px); }
}

.nummem-rule__list { font-size: 0.85rem; display: grid; gap: 4px; }
.nummem-rule__list li { padding-left: 1.1em; position: relative; }
.nummem-rule__list li::before { content: "●"; position: absolute; left: 0; color: var(--nummem-primary); font-size: 0.6em; top: 0.5em; }
.nummem-rule__list kbd {
  display: inline-block; min-width: 1.6em; margin: 0 2px; padding: 0 4px;
  border: 1px solid var(--nummem-border); border-bottom-width: 2px; border-radius: 4px;
  background: #fff; font: 700 0.75rem/1.5 monospace; text-align: center;
}

.nummem-record__title { margin-bottom: 8px; font-size: 0.75rem; font-weight: 700; color: var(--nummem-muted); text-align: center; }
.nummem-record__body { display: flex; justify-content: space-around; text-align: center; gap: 8px; }
.nummem-record-cell { flex: 1; }
.nummem-record-cell small { display: block; font-size: 0.75rem; color: var(--nummem-muted); }
.nummem-record-cell b { display: block; font-size: 1.3rem; font-weight: 800; font-variant-numeric: tabular-nums; }
.nummem-record-cell:last-child b { color: var(--nummem-primary); }
.nummem-record-empty { width: 100%; font-size: 0.9rem; color: var(--nummem-muted); }

.nummem-details { padding: 8px 16px; font-size: 0.85rem; color: var(--nummem-muted); }
.nummem-details summary { cursor: pointer; padding: 8px 0; font-weight: 700; }
.nummem-table { width: 100%; margin: 4px 0 8px; border-collapse: collapse; }
.nummem-table th, .nummem-table td { padding: 6px 4px; text-align: left; border-bottom: 1px solid var(--nummem-border); }
.nummem-table td:first-child { font-weight: 800; color: var(--nummem-primary); }

/* ---------- ② カウントダウン ---------- */
.nummem-countdown__level { font-size: 1.1rem; font-weight: 800; letter-spacing: 0.2em; color: var(--nummem-muted); }
.nummem-countdown__text {
  margin: 8px 0;
  font-size: clamp(5rem, 28vw, 9rem);
  font-weight: 900;
  line-height: 1.1;
  color: var(--nummem-primary);
}
.nummem-countdown__sub { min-height: 1.5em; font-size: 0.9rem; font-weight: 700; color: var(--nummem-muted); }

/* ---------- HUD ---------- */
.nummem-hud {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  padding: 10px 16px;
  background: var(--nummem-card);
  border-radius: var(--nummem-radius);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}
.nummem-hud__cell { display: flex; flex-direction: column; min-width: 30%; }
.nummem-hud__cell--center { align-items: center; }
.nummem-hud__cell--right { align-items: flex-end; }
.nummem-hud__label { font-size: 0.7rem; letter-spacing: 0.08em; color: var(--nummem-muted); font-weight: 700; }
.nummem-hud__value { font-size: 1.5rem; font-weight: 800; font-variant-numeric: tabular-nums; line-height: 1.2; }
.nummem-lives { display: inline-flex; gap: 3px; height: 1.8rem; align-items: center; }
.nummem-heart { display: inline-flex; width: 22px; height: 22px; }
.nummem-heart svg { width: 100%; height: 100%; }
.nummem-heart.is-on svg { fill: var(--nummem-red); }
.nummem-heart.is-off svg { fill: var(--nummem-border); }

.nummem-phase-label {
  text-align: center;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--nummem-muted);
}

/* ---------- ③ 記憶フェーズ ---------- */
.nummem-stage {
  display: flex;
  flex: 1;
  align-items: center;
  justify-content: center;
  min-height: 220px;
  padding: 16px;
  background: #fff;
  border-radius: var(--nummem-radius);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}
.nummem-digits {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.2em 0.7em;
  font-family: var(--nummem-mono);
  font-size: clamp(40px, 10vw, 64px);
  font-weight: 700;
  line-height: 1.25;
  color: var(--nummem-text);
  font-variant-numeric: tabular-nums;
}
.nummem-digit-group {
  white-space: nowrap;
  letter-spacing: 0.2em;
  margin-right: -0.2em; /* 末尾の字間を相殺して中央揃えを保つ */
}

.nummem-timer {
  height: 14px;
  overflow: hidden;
  background: var(--nummem-border);
  border-radius: 999px;
}
.nummem-timer__bar {
  width: 100%;
  height: 100%;
  background: var(--nummem-primary);
  transform-origin: left center; /* 右端が左へ縮む */
  will-change: transform;
}

/* ---------- ④ 入力フェーズ ---------- */
.nummem-answer-area {
  display: flex;
  flex: 1;
  flex-direction: column;
  justify-content: center;
  gap: 10px;
  min-height: 190px;
  padding: 16px 12px;
  background: #fff;
  border-radius: var(--nummem-radius);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}
.nummem-slots {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px 16px;
}
.nummem-slot-group { display: flex; gap: 5px; }
.nummem-slot {
  display: flex;
  align-items: center;
  justify-content: center;
  width: clamp(30px, 8.4vw, 44px);
  height: clamp(40px, 11vw, 56px);
  font-family: var(--nummem-mono);
  font-size: clamp(20px, 6vw, 30px);
  font-weight: 700;
  color: var(--nummem-text);
  background: var(--nummem-bg);
  border: 2px solid var(--nummem-border);
  border-radius: 8px;
  transition: border-color 0.12s, box-shadow 0.12s, background-color 0.12s;
}
.nummem-slot.is-filled { background: #fff; border-color: #adb5bd; }
.nummem-slot.is-active { background: #fff; border-color: var(--nummem-primary); box-shadow: 0 0 0 3px rgba(59, 91, 219, 0.2); }

.nummem-slots.is-correct .nummem-slot {
  color: var(--nummem-green);
  background: #ebfbee;
  border-color: var(--nummem-green);
  box-shadow: 0 0 0 3px rgba(47, 158, 68, 0.2);
}
.nummem-slots.is-wrong { animation: nummem-shake 0.45s; }
.nummem-slots.is-wrong .nummem-slot {
  color: var(--nummem-red);
  background: #fff5f5;
  border-color: var(--nummem-red);
  box-shadow: 0 0 0 3px rgba(224, 49, 49, 0.18);
}
@keyframes nummem-shake {
  0%, 100% { transform: translateX(0); }
  15% { transform: translateX(-10px); }
  35% { transform: translateX(9px); }
  55% { transform: translateX(-7px); }
  75% { transform: translateX(5px); }
}

.nummem-feedback { min-height: 76px; text-align: center; }
.nummem-feedback__main { font-size: 1.9rem; font-weight: 900; letter-spacing: 0.08em; }
.nummem-feedback__main.is-correct { color: var(--nummem-green); animation: nummem-pop 0.35s; }
.nummem-feedback__main.is-wrong { color: var(--nummem-red); font-size: 1.4rem; }
.nummem-feedback__sub { margin-top: 2px; font-size: 0.8rem; color: var(--nummem-muted); }
.nummem-answer-digits {
  display: inline-block;
  margin-left: 6px;
  font-family: var(--nummem-mono);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--nummem-text);
}
@keyframes nummem-pop {
  0% { transform: scale(0.6); opacity: 0; }
  70% { transform: scale(1.12); opacity: 1; }
  100% { transform: scale(1); }
}

/* ---------- テンキー ---------- */
.nummem-pad { margin-top: auto; }
.nummem-keypad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.nummem-key {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60px; /* 56px以上を保証 */
  padding: 0;
  font-family: var(--nummem-mono);
  font-size: 28px;
  font-weight: 700;
  color: var(--nummem-text);
  background: #fff;
  border: 1px solid var(--nummem-border);
  border-radius: 14px;
  box-shadow: 0 3px 0 #ced4da;
  cursor: pointer;
  -webkit-user-select: none;
  user-select: none;
  touch-action: manipulation;
  transition: transform 0.05s ease, box-shadow 0.05s ease, background-color 0.12s;
}
.nummem-key:hover { background: #f1f3f5; }
.nummem-key:active { transform: translateY(3px); box-shadow: 0 0 0 #ced4da; }
.nummem-key--sub { font-family: inherit; font-size: 0.95rem; color: var(--nummem-muted); background: var(--nummem-bg); }
.nummem-confirm { margin-top: 12px; min-height: 60px; font-size: 1.25rem; letter-spacing: 0.3em; }

/* ---------- ⑤ リザルト ---------- */
.nummem-result__title { text-align: center; font-size: 1.4rem; font-weight: 800; }
.nummem-result__main { position: relative; text-align: center; padding-top: 24px; }

.nummem-new-record {
  display: inline-block; margin-bottom: 8px; padding: 2px 14px;
  background: linear-gradient(90deg, #ff6b6b, #fcc419); color: #fff;
  font-weight: 900; letter-spacing: 0.08em; border-radius: 999px;
  animation: nummem-blink 0.9s ease-in-out infinite alternate;
}
@keyframes nummem-blink { from { transform: scale(1); } to { transform: scale(1.08); } }

.nummem-result__rank {
  width: 96px; height: 96px; margin: 0 auto 8px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%; color: #fff;
  font-size: 3.4rem; font-weight: 900; line-height: 1;
  background: var(--nummem-muted);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  animation: nummem-pop 0.5s;
}
.nummem-result__rank[data-rank="S"] { background: linear-gradient(135deg, #fcc419, #f76707); }
.nummem-result__rank[data-rank="A"] { background: var(--nummem-red); }
.nummem-result__rank[data-rank="B"] { background: var(--nummem-blue); }
.nummem-result__rank[data-rank="C"] { background: var(--nummem-green); }
.nummem-result__rank[data-rank="D"] { background: var(--nummem-muted); }

.nummem-result__rank-title { font-size: 1.1rem; font-weight: 800; }
.nummem-result__age { font-weight: 700; color: var(--nummem-muted); }
.nummem-result__score { font-size: 2.6rem; font-weight: 900; line-height: 1.3; font-variant-numeric: tabular-nums; }
.nummem-result__score small { font-size: 1rem; margin-left: 2px; }

.nummem-stats { display: flex; justify-content: space-around; text-align: center; gap: 8px; }
.nummem-stats__item { flex: 1; }
.nummem-stats__item dt { font-size: 0.7rem; color: var(--nummem-muted); }
.nummem-stats__item dd { font-size: 1.15rem; font-weight: 800; font-variant-numeric: tabular-nums; }

.nummem-actions { display: grid; gap: 12px; }

/* 広告枠：操作ボタンから35px以上の余白（誤クリック防止）。最下部に配置 */
.nummem-ad { margin-top: 48px; text-align: center; }
.nummem-ad__label { display: block; font-size: 0.7rem; color: var(--nummem-muted); margin-bottom: 4px; }
.nummem-ad__slot {
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 100%;
  min-height: 100px;
  overflow: hidden;
}

/* ---------- レスポンシブ ---------- */
@media (max-width: 380px) {
  .nummem-app { padding-left: 12px; padding-right: 12px; }
  .nummem-hud__value { font-size: 1.25rem; }
}
@media (min-width: 600px) {
  .nummem-app { margin-top: 16px; margin-bottom: 16px; border-radius: 20px; box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12); }
}
@media (max-height: 700px) {
  .nummem-key { min-height: 56px; font-size: 24px; }
  .nummem-confirm { min-height: 54px; }
  .nummem-feedback { min-height: 64px; }
}

/* 動きを減らす設定への配慮 */
@media (prefers-reduced-motion: reduce) {
  .nummem-app *, .nummem-app *::before, .nummem-app *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}