/* ================================================================
   style.css – Cheese Quest / チーズクエスト
   ================================================================ */

/* ── 01. リセット & ベース ─────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo,
               'Noto Sans JP', sans-serif;
  background: radial-gradient(ellipse at top, #FFB300, #E65100);
  min-height: 100dvh;
  color: #FFF8E1;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* ── 02. CSS カスタムプロパティ ────────────────────────────── */
:root {
  --clr-gold:        #FFD600;
  --clr-gold-light:  #FFE082;
  --clr-orange:      #FFB300;
  --clr-orange-dark: #E65100;
  --clr-brown:       #795548;
  --clr-brown-dark:  #3E2723;
  --clr-red:         #EF5350;
  --clr-green:       #69F0AE;
  --clr-white-soft:  #FFF8E1;

  --shadow-card: 0 8px 32px rgba(0,0,0,0.35), 0 2px 8px rgba(0,0,0,0.2);
  --radius-card: 20px;
  --radius-btn:  28px;
}

/* ── 03. レイアウト ────────────────────────────────────────── */
#main-content {
  flex: 1;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  padding: 8px 0;
}

/* ── 04. 画面切り替え ──────────────────────────────────────── */
.screen {
  display: none;
  width: 100%;
  max-width: 570px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  padding: 0 12px;
}

.screen--active {
  display: flex;
}

/* ── 05. ヘッダー ──────────────────────────────────────────── */
.site-header {
  width: 100%;
  text-align: center;
  padding: 10px 12px 6px;
  flex-shrink: 0;
}

.site-title {
  font-size: clamp(1.1rem, 4vw, 1.5rem);
  font-weight: 900;
  color: var(--clr-gold);
  text-shadow: 0 2px 8px rgba(0,0,0,0.4);
  letter-spacing: 0.04em;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.35em;
  flex-wrap: wrap;
}

.title-emoji { font-size: 1.15em; }

/* 日本語サブタイトルをスラッシュで区切って英語の後ろに並べる */
.title-sub {
  font-size: 0.55em;
  font-weight: 700;
  color: var(--clr-gold-light);
  letter-spacing: 0.08em;
}
.title-sub::before {
  content: '/ ';
  opacity: 0.6;
}

/* ── 06. フッター ──────────────────────────────────────────── */
.site-footer {
  width: 100%;
  text-align: center;
  padding: 6px 12px 10px;
  flex-shrink: 0;
}

.footer-copy {
  font-size: 0.72rem;
  color: rgba(255,248,225,0.65);
}

.footer-link {
  color: rgba(255,248,225,0.85);
  text-decoration: none;
  font-weight: 700;
  transition: color 0.2s;
}

.footer-link:hover,
.footer-link:focus-visible {
  color: var(--clr-gold);
  text-decoration: underline;
  outline: none;
}

/* ── 07. トップ画面 ────────────────────────────────────────── */
.top-description {
  background: rgba(30, 10, 0, 0.55);
  border: 1px solid rgba(255,220,100,0.25);
  border-radius: var(--radius-card);
  padding: 18px 20px 16px;
  width: 100%;
  max-width: 500px;
  backdrop-filter: blur(6px);
}

/* "How to Play / あそびかた" 見出し */
.section-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--clr-gold-light);
  text-align: center;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

/* 操作説明リスト */
.how-to-play-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.how-to-play-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: clamp(0.78rem, 3vw, 0.88rem);
  line-height: 1.5;
  color: var(--clr-white-soft);
}

.how-to-play-list .icon {
  font-size: 1.1em;
  flex-shrink: 0;
  margin-top: 1px;
}

/* 英語行：標準の白 */
/* 日本語行：やや落ち着いたトーンで区別 */
.tip-ja {
  color: #FFCC80;
  font-size: 0.95em;
}

/* ハイスコア */
.highscore-display {
  text-align: center;
  min-height: 2rem;
}

.no-record {
  font-size: 0.8rem;
  color: rgba(255,248,225,0.55);
}

/* ── 08. ゲーム画面 ────────────────────────────────────────── */
.screen--game { padding: 0; }

#gameCanvas {
  width: min(570px, 96vw, 96dvh);
  height: min(570px, 96vw, 96dvh);
  border-radius: 16px;
  box-shadow: var(--shadow-card);
  cursor: grab;
  display: block;
  touch-action: none;
}

#gameCanvas:active { cursor: grabbing; }

/* ── 09. リザルト画面 ──────────────────────────────────────── */
.result-header { text-align: center; }

.result-gameover-emoji {
  font-size: clamp(2.5rem, 10vw, 3.5rem);
  line-height: 1;
  margin-bottom: 4px;
  animation: fallIn 0.45s cubic-bezier(0.34,1.56,0.64,1) both;
}

.result-title {
  font-size: clamp(1.6rem, 7vw, 2.4rem);
  font-weight: 900;
  color: var(--clr-red);
  text-shadow: 0 0 18px rgba(255,23,68,0.7);
  letter-spacing: 0.05em;
}

/* "You lost! / やられた！" — 英語＋日本語を一行で */
.result-subtitle {
  font-size: 0.95rem;
  color: #FFCDD2;
  margin-top: 4px;
}

.result-scores {
  background: rgba(30,10,0,0.6);
  border: 1px solid rgba(255,220,100,0.25);
  border-radius: var(--radius-card);
  padding: 18px 24px;
  width: 100%;
  max-width: 360px;
  text-align: center;
  backdrop-filter: blur(6px);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.result-score-current {
  font-size: clamp(1.6rem, 8vw, 2.4rem);
  font-weight: 900;
  color: var(--clr-gold);
  text-shadow: 0 2px 8px rgba(0,0,0,0.4);
}

.result-score-best {
  font-size: clamp(0.85rem, 3.5vw, 1rem);
  font-weight: 700;
  color: #FFCC80;
  transition: color 0.3s;
}

.result-score-best.new-record {
  color: var(--clr-green);
  animation: blink 0.4s ease 3 alternate;
}

.result-buttons {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

/* ── 10. 共通ボタン ────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4em;
  border: none;
  border-radius: var(--radius-btn);
  font-family: inherit;
  font-weight: 800;
  font-size: clamp(0.9rem, 3.5vw, 1rem);
  letter-spacing: 0.03em;
  cursor: pointer;
  padding: 0.65em 2em;
  transition: transform 0.15s, box-shadow 0.15s, filter 0.15s;
  outline: none;
}

.btn:focus-visible {
  box-shadow: 0 0 0 3px rgba(255,235,59,0.8);
}

.btn:hover  { transform: translateY(-2px); filter: brightness(1.1); }
.btn:active { transform: translateY(0) scale(0.97); filter: brightness(0.95); }

.btn--primary {
  background: var(--clr-orange);
  color: var(--clr-brown-dark);
  box-shadow: 0 4px 14px rgba(0,0,0,0.35), 0 0 0 3px #FFF3;
}

.btn--secondary {
  background: rgba(255,255,255,0.15);
  color: var(--clr-white-soft);
  border: 2px solid rgba(255,255,255,0.35);
  box-shadow: 0 4px 10px rgba(0,0,0,0.25);
}
.btn--secondary:hover { background: rgba(255,255,255,0.22); }

.btn--large {
  font-size: clamp(1rem, 4vw, 1.15rem);
  padding: 0.75em 3em;
  min-width: 220px;
}

/* ハイスコア共通ブロック */
.highscore-block {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  font-size: clamp(0.95rem, 4vw, 1.1rem);
  font-weight: 800;
  color: var(--clr-gold);
  text-shadow: 0 2px 6px rgba(0,0,0,0.4);
}

.highscore-block .trophy { font-size: 1.3em; }

/* ── 11. アニメーション ────────────────────────────────────── */
@keyframes fallIn {
  from { transform: translateY(-30px) scale(0.7); opacity: 0; }
  to   { transform: translateY(0) scale(1);       opacity: 1; }
}

@keyframes blink {
  from { opacity: 1; }
  to   { opacity: 0.35; }
}

@keyframes fadeUp {
  from { transform: translateY(16px); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}

.screen--active      { animation: fadeUp 0.35s ease both; }
.screen--game.screen--active { animation: none; }

/* ── 12. レスポンシブ ──────────────────────────────────────── */
@media (min-width: 480px) {
  .top-description { padding: 22px 28px 20px; }
  .how-to-play-list li { font-size: 0.92rem; }
  .result-scores { padding: 22px 32px; }
}