/* ==========================================================
   文字なぞりトレーニング - style.css
   テーマはストループ効果テスト / 数字記憶テストに統一（白ベース）
   すべてのクラスに .chartrace- プレフィックスを付与（WP干渉防止）
   ========================================================== */

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

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

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

.chartrace-app {
  --chartrace-red: #E03131;
  --chartrace-blue: #1971C2;
  --chartrace-green: #2F9E44;
  --chartrace-green-dark: #237a35;
  --chartrace-yellow: #F59F00;
  --chartrace-bg: #f4f6fb;
  --chartrace-card: #ffffff;
  --chartrace-text: #212529;
  --chartrace-muted: #868e96;
  --chartrace-primary: #3b5bdb;
  --chartrace-primary-dark: #2f49b3;
  --chartrace-border: #dee2e6;
  --chartrace-radius: 16px;

  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(--chartrace-bg);
  color: var(--chartrace-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%;
}

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

/* ---------- トップバー（戻る／サウンド） ---------- */
.chartrace-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 32px;
  margin-bottom: 4px;
}
.chartrace-app a.chartrace-back,
.chartrace-app .chartrace-sound-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: var(--chartrace-card);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
  text-decoration: none;
  cursor: pointer;
  touch-action: manipulation;
  transition: transform 0.08s ease, background-color 0.15s ease;
}
/* 見た目は小さく、タップ範囲は44px相当を確保 */
.chartrace-app a.chartrace-back::after,
.chartrace-app .chartrace-sound-btn::after {
  content: "";
  position: absolute;
  inset: -6px;
}
.chartrace-app a.chartrace-back { color: var(--chartrace-primary); }
.chartrace-app .chartrace-sound-btn { color: var(--chartrace-muted); }
.chartrace-app a.chartrace-back:hover { background: #edf2ff; color: var(--chartrace-primary-dark); }
.chartrace-app .chartrace-sound-btn:hover { background: #f1f3f5; }
.chartrace-app a.chartrace-back:active,
.chartrace-app .chartrace-sound-btn:active { transform: scale(0.94); }
.chartrace-back svg,
.chartrace-sound-btn svg { display: block; width: 18px; height: 18px; }
.chartrace-app a.chartrace-back:focus-visible,
.chartrace-sound-btn:focus-visible,
.chartrace-btn:focus-visible { outline: 3px solid #ffd43b; outline-offset: 2px; }

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

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

/* ---------- ボタン ---------- */
.chartrace-btn {
  display: block;
  width: 100%;
  min-height: 52px;
  padding: 12px 16px;
  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;
}
.chartrace-btn:active:not(:disabled) { transform: scale(0.97); }
.chartrace-btn:disabled { opacity: 0.4; cursor: not-allowed; }

.chartrace-btn--primary { background: var(--chartrace-primary); color: #fff; box-shadow: 0 4px 0 var(--chartrace-primary-dark); }
.chartrace-btn--primary:hover:not(:disabled) { background: #4263eb; }
.chartrace-btn--ok { background: var(--chartrace-green); color: #fff; box-shadow: 0 4px 0 var(--chartrace-green-dark); font-size: 1.15rem; }
.chartrace-btn--ok:hover:not(:disabled) { background: #37b24d; }
.chartrace-btn--cta { min-height: 64px; font-size: 1.25rem; }
.chartrace-app a.chartrace-btn--x {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  background: #111; color: #fff; text-decoration: none;
}
.chartrace-app a.chartrace-btn--x:hover { background: #333; color: #fff; }
.chartrace-btn--ghost { background: #fff; color: var(--chartrace-muted); border: 1px solid var(--chartrace-border); min-height: 44px; }

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

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

.chartrace-demo-box { padding: 10px 12px 12px; margin-bottom: 12px; background: var(--chartrace-bg); border-radius: 12px; text-align: center; }
.chartrace-demo { display: block; width: 100%; max-width: 300px; height: auto; margin: 0 auto; }
.chartrace-demo__guide { fill: none; stroke: #ced4da; stroke-width: 16; stroke-linecap: round; stroke-linejoin: round; }
.chartrace-demo__trace {
  fill: none; stroke: var(--chartrace-blue); stroke-width: 7; stroke-linecap: round; stroke-linejoin: round;
  stroke-dasharray: 100; stroke-dashoffset: 100;
  animation: chartrace-demo-draw 3.6s ease-in-out infinite;
}
@keyframes chartrace-demo-draw {
  0%   { stroke-dashoffset: 100; }
  70%  { stroke-dashoffset: 0; }
  100% { stroke-dashoffset: 0; }
}
.chartrace-demo__note { margin-top: 6px; font-size: 0.8rem; color: var(--chartrace-muted); }
.chartrace-demo__chip { padding: 1px 8px; border-radius: 999px; font-weight: 700; color: #fff; }
.chartrace-demo__chip--guide { background: #adb5bd; }
.chartrace-demo__chip--trace { background: var(--chartrace-blue); }

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

.chartrace-records { display: flex; justify-content: space-around; text-align: center; gap: 8px; }
.chartrace-records__item { flex: 1; }
.chartrace-records__item dt { font-size: 0.75rem; color: var(--chartrace-muted); }
.chartrace-records__item dd { font-size: 1.3rem; font-weight: 800; font-variant-numeric: tabular-nums; }
.chartrace-records__rank { color: var(--chartrace-primary); }

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

/* ---------- ② カウントダウン ---------- */
.chartrace-countdown__num {
  font-size: clamp(5rem, 28vw, 9rem);
  font-weight: 900;
  color: var(--chartrace-primary);
  line-height: 1;
  opacity: 0;
}
.chartrace-countdown__num.is-small { font-size: clamp(2.2rem, 12vw, 3.6rem); }
.chartrace-countdown__num.is-go { color: var(--chartrace-red); }
.chartrace-countdown__num.is-anim { animation: chartrace-pop 0.3s cubic-bezier(0.2, 0.8, 0.3, 1) forwards; }
@keyframes chartrace-pop {
  0%   { transform: scale(0.5); opacity: 0; }
  60%  { transform: scale(1.08); opacity: 1; }
  100% { transform: scale(1); opacity: 1; }
}

/* ---------- ③ プレイ画面 ---------- */
.chartrace-screen#chartrace-screen-playing { gap: 10px; }

.chartrace-hud {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  padding: 8px 16px;
  background: var(--chartrace-card);
  border-radius: var(--chartrace-radius);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}
.chartrace-hud__cell { display: flex; flex-direction: column; min-width: 30%; }
.chartrace-hud__cell--center { align-items: center; }
.chartrace-hud__cell--right { align-items: flex-end; }
.chartrace-hud__label { font-size: 0.7rem; letter-spacing: 0.08em; color: var(--chartrace-muted); font-weight: 700; }
.chartrace-hud__value { font-size: 1.4rem; font-weight: 800; font-variant-numeric: tabular-nums; line-height: 1.2; }

.chartrace-stage-info {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  font-size: 0.9rem; font-weight: 700; color: var(--chartrace-muted);
}
.chartrace-chip {
  padding: 0 10px; border-radius: 999px; background: var(--chartrace-primary); color: #fff;
  font-size: 0.8rem; font-weight: 800;
}

.chartrace-board-wrap { display: flex; justify-content: center; }
.chartrace-board {
  position: relative;
  width: min(100%, max(240px, calc(100vh - 340px)));
  width: min(100%, max(240px, calc(100dvh - 340px)));
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: #fff;
  border: 2px solid var(--chartrace-border);
  border-radius: var(--chartrace-radius);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  /* 描画中はスクロール・ピンチズーム・スワイプ戻りを無効化 */
  touch-action: none;
}
.chartrace-canvas {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
}
.chartrace-canvas--ink { opacity: 0.85; cursor: crosshair; }

.chartrace-pop {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 12px;
  text-align: center;
  background: rgba(255, 255, 255, 0.72);
  pointer-events: none;
  animation: chartrace-fade 0.2s ease-out;
}
.chartrace-pop__main { font-size: clamp(2rem, 11vw, 3.2rem); font-weight: 900; letter-spacing: 0.06em; animation: chartrace-pop 0.35s ease-out; }
.chartrace-pop__main.is-perfect { color: var(--chartrace-yellow); text-shadow: 0 2px 0 rgba(0, 0, 0, 0.08); }
.chartrace-pop__main.is-great { color: var(--chartrace-green); }
.chartrace-pop__main.is-good { color: var(--chartrace-blue); }
.chartrace-pop__main.is-miss { color: var(--chartrace-red); }
.chartrace-pop__score { font-size: 1.4rem; font-weight: 800; }
.chartrace-pop__sub { font-size: 0.85rem; font-weight: 700; color: var(--chartrace-text); }
@keyframes chartrace-fade { from { opacity: 0; } to { opacity: 1; } }

.chartrace-auto { height: 6px; overflow: hidden; background: var(--chartrace-border); border-radius: 999px; }
.chartrace-auto.is-off { visibility: hidden; }
.chartrace-auto__bar { width: 100%; height: 100%; background: var(--chartrace-green); transform-origin: left center; transform: scaleX(0); }
.chartrace-auto__bar.is-running { animation: chartrace-auto var(--chartrace-auto-ms, 3000ms) linear forwards; }
@keyframes chartrace-auto { from { transform: scaleX(0); } to { transform: scaleX(1); } }
.chartrace-hint { margin-top: -4px; text-align: center; font-size: 0.75rem; color: var(--chartrace-muted); }

.chartrace-toolbar { display: grid; grid-template-columns: 1fr 1fr 1.7fr; gap: 10px; }
.chartrace-toolbar .chartrace-btn { min-height: 52px; padding: 8px; font-size: 0.9rem; }
.chartrace-toolbar .chartrace-btn--ok { font-size: 1.1rem; }

/* ---------- ④ リザルト画面 ---------- */
.chartrace-result__title { text-align: center; font-size: 1.4rem; font-weight: 800; }
.chartrace-result__main { position: relative; text-align: center; padding-top: 24px; }

.chartrace-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: chartrace-blink 0.9s ease-in-out infinite alternate;
}
@keyframes chartrace-blink { from { transform: scale(1); } to { transform: scale(1.08); } }

.chartrace-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(--chartrace-muted);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  animation: chartrace-pop 0.5s;
}
.chartrace-result__rank[data-rank="S"] { background: linear-gradient(135deg, #fcc419, #f76707); }
.chartrace-result__rank[data-rank="A"] { background: var(--chartrace-red); }
.chartrace-result__rank[data-rank="B"] { background: var(--chartrace-blue); }
.chartrace-result__rank[data-rank="C"] { background: var(--chartrace-green); }
.chartrace-result__rank[data-rank="D"] { background: var(--chartrace-muted); }

.chartrace-result__rank-label { font-size: 1rem; font-weight: 800; }
.chartrace-result__age { font-size: 1.2rem; font-weight: 800; color: var(--chartrace-primary); }
.chartrace-result__score { font-size: 2.6rem; font-weight: 900; line-height: 1.3; font-variant-numeric: tabular-nums; }
.chartrace-result__score small { font-size: 0.95rem; margin-left: 4px; color: var(--chartrace-muted); }

.chartrace-list { display: grid; gap: 0; padding: 4px 16px; }
.chartrace-row { display: flex; align-items: center; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--chartrace-border); }
.chartrace-row:last-child { border-bottom: 0; }
.chartrace-row__thumb { flex: none; width: 56px; height: 56px; border: 1px solid var(--chartrace-border); border-radius: 8px; background: #fff; }
.chartrace-row__main { flex: 1; min-width: 0; display: flex; flex-direction: column; font-size: 0.75rem; color: var(--chartrace-muted); }
.chartrace-row__main b { font-size: 0.95rem; color: var(--chartrace-text); }
.chartrace-row__note { color: var(--chartrace-red); font-weight: 700; }
.chartrace-row__score { flex: none; display: flex; flex-direction: column; align-items: flex-end; gap: 2px; }
.chartrace-row__score strong { font-size: 1.4rem; font-weight: 900; font-variant-numeric: tabular-nums; line-height: 1.1; }
.chartrace-tag { padding: 0 8px; border-radius: 999px; color: #fff; font-size: 0.65rem; font-weight: 800; letter-spacing: 0.04em; }
.chartrace-tag--perfect { background: var(--chartrace-yellow); }
.chartrace-tag--great { background: var(--chartrace-green); }
.chartrace-tag--good { background: var(--chartrace-blue); }
.chartrace-tag--miss { background: var(--chartrace-red); }

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

/* 広告枠：ボタン類から35px以上の余白（誤クリック防止）。最下部に配置 */
.chartrace-ad { margin-top: 48px; text-align: center; }
.chartrace-ad__label { display: block; font-size: 0.7rem; color: var(--chartrace-muted); margin-bottom: 4px; }
.chartrace-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) {
  .chartrace-app { padding-left: 12px; padding-right: 12px; }
  .chartrace-hud__value { font-size: 1.2rem; }
}
@media (min-width: 600px) {
  .chartrace-app { margin-top: 16px; margin-bottom: 16px; border-radius: 20px; box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12); }
}

/* 動きを減らす設定への配慮 */
@media (prefers-reduced-motion: reduce) {
  .chartrace-app *, .chartrace-app *::before, .chartrace-app *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .chartrace-countdown__num { opacity: 1; }
  .chartrace-demo__trace { stroke-dashoffset: 0; }
}