:root {
    /* Base Colors */
    --color-bg-deep: #1A1A2E;
    --color-bg-light: #FFF9F9;
    --color-accent-primary: #FFB7B2;   /* Sakura Pink */
    --color-accent-secondary: #B5EAD7; /* Mint Green */
    --color-accent-tertiary: #BDE0FE;  /* Sky Blue */
    --color-warning: #ff4d4d;          /* Red */
    --color-highlight: #FFD700;        /* Gold */
    --color-star: #FFFFD1;             /* Star Yellow */
    
    /* Text Colors */
    --color-text-main: #444444;
    --color-text-muted: #999999;
    --color-text-white: #FFFFFF;
    --color-text-white-dim: rgba(255, 255, 255, 0.8);
    --color-text-brand: rgba(0, 0, 0, 0.6);
    --color-text-version: rgba(0, 0, 0, 0.3);
    
    /* UI Elements */
    --color-panel-bg: rgba(255, 255, 255, 0.9);
    --color-glass-border: #FFFFFF;
    --color-overlay-bg: rgba(0, 0, 0, 0.85);
    --color-miss-overlay-bg: rgba(40, 0, 0, 0.9);
    --color-card-bg: rgba(0, 0, 0, 0.6);
    --color-border-dim: rgba(255, 255, 255, 0.1);
    
    /* Legacy / Compatibility */
    --bg-color: #000000;
    --primary-color: #0000ff;
    --accent-color: var(--color-accent-secondary);
    --text-color: #333333;
    --panel-bg: var(--color-panel-bg);
    --glass-border: rgba(255, 255, 255, 0.5);
    --font-family: 'Outfit', sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  background-color: var(--color-bg-deep); 
  touch-action: none; 
  overscroll-behavior-y: none;
  overscroll-behavior-x: none;
  display: block;
}

/* ゲームコンテナを 9:16 の比率で中央に配置 */
#game-container {
  width: 100vw;
  height: 100vh;
  display: block;
  position: relative;
  overflow: hidden;
  background-color: var(--color-bg-light);
  /* Decoration: Border waves/dots */
  background-image:
      radial-gradient(var(--color-accent-primary) 2px, transparent 2px),
      radial-gradient(var(--color-accent-secondary) 2px, transparent 2px);
  background-size: 20px 20px;
  background-position: 0 0, 10px 10px;
}


canvas {
  width: 100%;
  height: 100%;
  display: block;
  background-color: var(--color-bg-deep);
}

#ui-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 155px;
    padding: 15px 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    pointer-events: none;
    z-index: 10;
    background: var(--color-accent-primary);
    gap: 8px !important;
    /* Cloud Decorations */
    background-image:
        radial-gradient(circle at 20% 120%, white 40px, transparent 41px),
        radial-gradient(circle at 50% 130%, white 60px, transparent 61px),
        radial-gradient(circle at 80% 120%, white 40px, transparent 41px),
        /* Stars */
        radial-gradient(circle at 10% 20%, var(--color-star) 2px, transparent 3px),
        radial-gradient(circle at 90% 30%, var(--color-star) 2px, transparent 3px),
        radial-gradient(circle at 40% 10%, var(--color-star) 3px, transparent 4px);
}

.score-group {
    display: flex;
    flex-direction: column-reverse;
    gap: 6px;
    flex-shrink: 0;
}

.stat-box {
    background: var(--color-panel-bg);
    backdrop-filter: blur(5px);
    border: 2px solid var(--color-glass-border);
    border-radius: 18px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 60px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    pointer-events: auto;
    padding: 6px 10px !important;
}

.score-group .stat-box {
    flex-direction: row;
    justify-content: space-between;
    min-width: 145px;
    padding: 4px 10px !important;
}

.score-group .label-text {
    margin-bottom: 0 !important;
    margin-right: 8px;
    font-size: 0.65rem !important;
}

.stat-box.stage-info {
    border: 2px solid var(--color-accent-secondary);
    background: #F0FFF0;
    transform: scale(1.05);
    z-index: 15;
}

.bgm-box {
    min-width: 100px;
}

#bgm-selector {
    border: none;
    background: transparent;
    font-family: inherit;
    font-weight: 700;
    color: var(--color-text-main);
    font-size: 0.8rem;
    cursor: pointer;
    outline: none;
    max-width: 130px;
    text-overflow: ellipsis;
}

/* ポーズボタン（ギアアイコン）のデザインをステータスボックス（.stat-box）に完全に同期 */
#pause-btn {
    background: var(--color-panel-bg) !important;
    backdrop-filter: blur(5px) !important;
    -webkit-backdrop-filter: blur(5px);
    border: 2px solid var(--color-glass-border) !important;
    border-radius: 20px !important;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05) !important;
    
    width: 60px !important;
    height: 55px !important;
    
    display: flex !important;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 1000 !important;
    pointer-events: auto;
    transition: all 0.2s;
    flex-shrink: 0;
}

/* ホバー・アクティブ時の挙動 */
#pause-btn:active {
    background: #fdfdfd !important;
    transform: scale(0.95) !important;
}

/* ヘッダー内のラベル（SCOREなど）の調整 */
.label-text {
    font-size: 0.7rem !important;
    margin-bottom: 2px !important;
    display: block;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: var(--color-text-muted);
    text-align: center;
    line-height: 1.1;
}

/* 数値の表示を中央に寄せる */
#score-val, #best-val, #lives-val, #stage-val {
    font-size: 1.3rem !important;
    line-height: 1.1;
    font-weight: 700;
    color: var(--color-text-main);
    font-variant-numeric: tabular-nums;
}

.score-group #score-val, .score-group #best-val {
    font-size: 1.05rem !important;
}

/* 2. ヘッダー要素のスリム化（狭い画面対策） */
#lives-container, #stage-container {
    min-width: 50px !important;
}

#msg-overlay {
    position: absolute;
    inset: 0;
    background: var(--color-overlay-bg);
    backdrop-filter: blur(4px);
    display: flex;
    flex-direction: column;
    justify-content: flex-start !important;
    align-items: center;
    padding-top: 1.5vh !important;
    z-index: 100;
    transition: opacity 0.4s ease, visibility 0.4s;
    opacity: 0;
    visibility: hidden;
}

/* ポーズ・ミス画面での不要な要素の非表示 */
#msg-overlay.paused .bgm-info-card,
#msg-overlay.paused #next-bgm-btn,
#msg-overlay.paused #next-stage-btn,
#msg-overlay.miss .bgm-info-card,
#msg-overlay.miss #next-bgm-btn,
#msg-overlay.miss #next-stage-btn {
    display: none !important;
}

/* ミス画面専用の赤っぽいオーバーレイ */
#msg-overlay.miss {
    background: var(--color-miss-overlay-bg) !important;
}
#msg-overlay.miss h1 {
    color: var(--color-accent-primary) !important;
    text-shadow: 0 0 15px rgba(255, 183, 178, 0.5);
}

#msg-overlay.visible {
    opacity: 1;
    visibility: visible;
}

.msg-content {
    text-align: center;
    animation: fadeInUp 0.6s ease-out;
}

#msg-title {
    font-size: 1.8rem !important;
    font-weight: 700;
    letter-spacing: 0.2rem;
    margin: 0 0 5px 0 !important;
    background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-tertiary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 5px 10px rgba(0, 0, 0, 0.1));
}

#msg-text {
    font-size: 1.2rem;
    color: var(--color-text-white-dim);
    margin-bottom: 40px;
    letter-spacing: 1px;
}

.controls-hint {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.4);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.text-highlight-glow {
    font-size: 1.5rem;
    font-weight: 900;
    color: #fff;
    text-shadow: 0 0 15px var(--color-accent-primary), 0 0 30px var(--color-accent-primary);
    animation: pulse 1.5s infinite;
    word-break: break-all;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

#now-playing {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
    color: var(--color-text-white-dim) !important;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.8) !important;
    position: absolute !important;
    left: 50% !important;
    top: 65% !important;
    transform: translate(-50%, -50%) !important;
    white-space: normal;
    max-width: 90vw;
    text-align: center;
    word-break: break-all;
    z-index: 9999 !important;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.bgm-title {
    font-size: 1.4rem !important;
    font-weight: 900 !important;
    margin-bottom: -5px;
}

.bgm-composer {
    font-size: 1.1rem !important;
    font-weight: 400 !important;
    opacity: 0.8;
}

#now-playing.visible {
    opacity: 1;
}
/* BGM metadata info card */
.bgm-info-card {
    background: var(--color-card-bg);
    border-radius: 12px;
    width: 96%;
    flex-grow: 1;
    width: 98%;
    max-height: 70vh !important;
    overflow-y: auto;
    padding: 15px;
    text-align: left;
    color: var(--color-text-white);
    border: 1px solid var(--color-border-dim);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    margin: 5px auto 0 auto;
}
.bgm-info-card h3 {
    color: var(--color-text-white);
    text-shadow: 0 0 8px rgba(255, 255, 255, 0.4);
    font-size: 1.15rem;
    margin: 0 0 8px 0;
}
.bgm-info-card h4 {
    color: var(--color-text-white);
    text-shadow: 0 0 8px rgba(255, 255, 255, 0.4);
    font-size: 1rem;
    margin: 20px 0 8px 0;
    border-top: 1px solid var(--color-border-dim);
    padding-top: 10px;
}
.bgm-info-card p {
    color: var(--color-text-white);
    font-size: 0.88rem;
    line-height: 1.5;
    margin: 0;
    white-space: pre-wrap;
}

/* コンパクトなスコア表示 */
.score-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin: 0 0 10px 0;
}
.compact-score {
    font-size: 1.2rem;
    color: var(--color-text-white);
    margin: 0;
}

/* 不要な設定ボタンを非表示（アイコンに集約または重複削除） */
#msg-overlay:not(.paused):not(.miss) button:not(.icon-only):not(#next-bgm-btn):not(#next-stage-btn) {
    display: none !important;
}

/* 設定ボタンをアイコン化 */
#show-settings-btn.icon-only {
    width: 40px !important;
    height: 40px !important;
    padding: 0 !important;
    min-width: unset !important;
    border-radius: 50% !important;
    display: flex !important;
    align-items: center;
    justify-content: center;
}

#pause-buttons {
    display: flex;
    flex-direction: row !important;
    justify-content: center;
    gap: 10px;
    width: 90%;
    margin: 0 auto 10px auto !important;
}
#pause-buttons button {
    flex: 1;
    padding: 10px 5px !important;
    font-size: 0.9rem !important;
    height: 45px;
    white-space: nowrap;
}

/* 虹色風タイトル（クリア画面用） */
.msg-title-clear {
  background: linear-gradient(45deg, var(--color-highlight), var(--color-accent-primary), var(--color-accent-tertiary)) !important;
  -webkit-background-clip: text !important;
  background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
  color: transparent !important;
}

/* ゲームオーバー専用 */
.msg-title-gameover {
  font-size: 3.5rem !important;
  color: var(--color-warning) !important;
  font-weight: 900 !important;
  line-height: 1.2;
  background: none !important;
  -webkit-text-fill-color: initial !important;
}

/* ミス画面専用タイトル */
.msg-title-miss {
  font-size: 4rem !important;
  font-weight: 900 !important;
}

/* 入力ロック中のボタン状態 */
.btn-locked {
  opacity: 0.5 !important;
  pointer-events: none !important;
  filter: grayscale(1) !important;
}

/* シークレットタップ演出用 */
.secret-tap-unlocked-1 { color: var(--color-accent-primary) !important; }
.secret-tap-unlocked-2 { color: var(--color-accent-tertiary) !important; }

/* ステージボタンの基本スタイル（JSからのcssText排除用） */
.ui-button-stage {
    flex: 1;
    font-size: 0.85rem;
    padding: 12px 5px;
    border-radius: 25px;
    background: var(--color-accent-primary);
    border: 3px solid white;
    color: var(--color-bg-deep);
    cursor: pointer;
    font-weight: 700;
    font-family: "Outfit";
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
    white-space: nowrap;
}

/* PWA Update Toast */
#update-toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(10px);
    border: 2px solid var(--color-accent-primary);
    border-radius: 20px;
    padding: 15px 25px;
    display: flex;
    align-items: center;
    gap: 20px;
    z-index: 3000;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    transition: transform 0.6s cubic-bezier(0.19, 1, 0.22, 1);
    color: var(--color-text-white);
    font-family: 'Outfit', sans-serif;
    pointer-events: none;
    opacity: 0;
}

#update-toast.visible {
    transform: translateX(-50%) translateY(0);
    pointer-events: auto;
    opacity: 1;
}

#update-toast span {
    font-size: 1rem;
    font-weight: 400;
    white-space: nowrap;
}

#update-toast button {
    background: var(--color-accent-primary);
    border: none;
    border-radius: 12px;
    padding: 8px 16px;
    color: var(--color-bg-deep);
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.2s, background 0.2s;
    font-family: 'Outfit', sans-serif;
    white-space: nowrap;
}

#update-toast button:hover {
    background: #FFD1CF;
    transform: scale(1.05);
}

#update-toast button:active {
    transform: scale(0.95);
}

/* Settings Modal Responsive & Scroll Support */
#settings-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: var(--color-bg-light);
    z-index: 2000;
    justify-content: center;
    align-items: center;
    touch-action: auto !important;
}

.settings-modal {
    background: var(--color-bg-light);
    width: 100%;
    height: 100%;
    max-width: none;
    max-height: none;
    border: none;
    border-radius: 0;
    padding: 30px 20px 0px 20px;
    text-align: center;
    box-shadow: none;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    touch-action: auto !important;
    position: relative;
}

.settings-modal h2 {
    color: var(--color-bg-deep);
    margin: 0 0 10px 0;
    font-family: 'Outfit';
    font-size: 2rem;
    letter-spacing: 2px;
    flex-shrink: 0;
}

.settings-content {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: 10px 15px 0 15px;
    text-align: left;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

/* Scrollbar Customization */
.settings-content::-webkit-scrollbar {
    width: 6px;
}
.settings-content::-webkit-scrollbar-track {
    background: rgba(0,0,0,0.05);
    border-radius: 10px;
}
.settings-content::-webkit-scrollbar-thumb {
    background: var(--color-accent-primary);
    border-radius: 10px;
}

.settings-item {
    margin-bottom: 20px;
}

.settings-item label {
    display: block;
    margin-bottom: 8px;
    color: #555;
    font-weight: bold;
    font-family: 'Outfit';
    font-size: 0.95rem;
}

.settings-modal button#close-settings-btn {
    margin-top: 20px;
    margin-bottom: 10px;
    flex-shrink: 0;
    align-self: center;
    position: relative;
    z-index: 10;
}

/* Theme Lock: Only show if all cleared */
#theme-selection-container {
    display: none;
}
body.all-cleared #theme-selection-container {
    display: block;
}

/* ============================================================
   Refactoring: New Utility Classes for UIManager.js
   ============================================================ */

/* Text colors and accents */
.text-accent-primary { color: var(--color-accent-primary); }
.text-accent-tertiary { color: var(--color-accent-tertiary); }
.text-highlight-glow {
    color: #FFFFFF !important;
    font-size: 1.5rem;
    font-weight: 800;
    text-shadow: 
        0 0 10px rgba(255, 215, 0, 0.8),
        0 0 20px rgba(255, 140, 0, 0.5),
        2px 2px 4px rgba(0, 0, 0, 0.9);
    letter-spacing: 1px;
}
.text-muted { color: var(--color-text-brand); }
.text-very-muted { color: var(--color-text-version); }

/* Start/Restart Screen */
.restart-count {
    font-size: 1.5em;
    color: var(--color-accent-primary);
}

/* Game Over / Results */
.score-val-large {
    font-size: 1.5rem;
    color: var(--color-text-white);
}
.game-over-stats {
    margin-top: 10px;
    color: var(--color-text-white-dim);
}

/* Miss Screen */
.lives-waiting {
    color: rgba(255,255,255,0.5);
    font-size: 0.9rem;
}

/* Version Info Block */
.version-container {
    margin-top: auto !important;
    padding-top: 10px;
    padding-bottom: 20px !important;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    text-align: center;
    font-family: "Outfit";
}
.brand-label {
    font-size: 14px;
    font-weight: 700;
    color: var(--color-text-brand);
    margin-bottom: 2px;
}
.version-label {
    font-size: 11px;
    font-weight: 400;
    color: var(--color-text-version);
    letter-spacing: 1px;
}

/* ============================================================
   Theme Definitions Placeholder
   ============================================================ */

/* ============================================================
   Theme Definitions
   ============================================================ */

body[data-theme="neon"] {
    --color-bg-deep: #050505;
    --color-bg-light: #0a0a0a;
    --color-accent-primary: #FF00FF;   /* Neon Magenta */
    --color-accent-secondary: #00FFFF; /* Neon Cyan */
    --color-accent-tertiary: #BCF132;  /* Neon Lime */
    --color-warning: #FF0055;
    --color-highlight: #00FFFF;
    --color-star: #FFFFFF;
    
    --color-text-main: #FFFFFF;
    --color-text-muted: #CCCCCC;
    --color-text-brand: #FF00FF;
    --color-text-version: rgba(255, 255, 255, 0.3);
    
    --color-bg-deep: #050505;
    --color-bg-light: #111111;
    --color-panel-bg: rgba(10, 10, 10, 0.9);
    --color-glass-border: #FF00FF;
    --color-card-bg: rgba(5, 5, 5, 0.85);
    --color-border-dim: rgba(0, 255, 255, 0.2);
    
    background-color: #000;
}

body[data-theme="neon"] #game-container {
    background-color: #050505;
    background-image:
        radial-gradient(#FF00FF 1px, transparent 1px),
        radial-gradient(#00FFFF 1px, transparent 1px);
    background-size: 30px 30px;
}

body[data-theme="neon"] #ui-overlay {
    background: #000;
    border-bottom: 2px solid #FF00FF;
    background-image:
        radial-gradient(circle at 10% 20%, #00FFFF 2px, transparent 3px),
        radial-gradient(circle at 90% 30%, #FF00FF 2px, transparent 3px);
}

body[data-theme="neon"] .stat-box {
    background: #000 !important;
    border: 2px solid #00FFFF !important;
    box-shadow: 0 0 10px rgba(0, 255, 255, 0.3);
}

body[data-theme="neon"] .stat-box.stage-info {
    border: 2px solid #FF00FF !important;
    box-shadow: 0 0 15px rgba(255, 0, 255, 0.4);
}

body[data-theme="neon"] #score-val, 
body[data-theme="neon"] #best-val, 
body[data-theme="neon"] #lives-val, 
body[data-theme="neon"] #stage-val {
    color: #FFFFFF;
    text-shadow: 0 0 5px #00FFFF;
}

body[data-theme="neon"] .settings-modal {
    background: #050505;
    border: 4px solid #FF00FF;
    box-shadow: 0 0 30px rgba(255, 0, 255, 0.3);
}

body[data-theme="neon"] .settings-modal h2 {
    color: #FF00FF;
    text-shadow: 0 0 10px #FF00FF;
}

body[data-theme="neon"] .settings-item label {
    color: #00FFFF;
}

body[data-theme="neon"] select,
body[data-theme="neon"] input[type="range"] {
    background: #111;
    color: #FFF;
    border: 1px solid #FF00FF;
}

/* ============================================================
   Icon & Button Visibility Fix
   ============================================================ */
#pause-btn, 
#show-settings-btn, 
.icon-only {
    color: #FFFFFF !important;
    border: 1px solid var(--color-accent-primary) !important;
    background: rgba(255, 0, 255, 0.1) !important;
    box-shadow: 0 0 10px rgba(255, 0, 255, 0.2);
}

#pause-btn svg, 
#show-settings-btn svg, 
.icon-only svg {
    fill: #FFFFFF !important;
    stroke: #FFFFFF !important;
}
/* Game Over New Record Badges */
.new-record-badges {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 20px;
    align-items: center;
}

.record-badge, .best-score-badge {
    font-family: 'Outfit';
    font-weight: 800;
    font-size: 1.8rem;
    padding: 5px 20px;
    border-radius: 50px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.record-badge {
    background: #FFD700;
    color: #000;
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.6);
}

.best-score-badge {
    background: #FF3366;
    color: #fff;
    box-shadow: 0 0 20px rgba(255, 51, 102, 0.6);
}

.pulse {
    animation: badge-pulse 1.5s infinite;
}

@keyframes badge-pulse {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.8; }
    100% { transform: scale(1); opacity: 1; }
}

/* ============================================================
   Sweets Theme
   ============================================================ */
body[data-theme="sweets"] {
    background-color: #FFF0F5 !important;
    background-image: radial-gradient(#FFFFFF 1.5px, transparent 1.5px) !important;
    background-size: 30px 30px !important;
}

body[data-theme="sweets"] #ui-overlay {
    background: #6B4226 !important;
    color: #FFFDD0 !important;
    border-bottom: 3px solid #FFB6C1 !important;
}

body[data-theme="sweets"] .stat-box {
    background: #FFFFFF !important;
    border: 2px solid #FFB6C1 !important;
    border-radius: 20px !important;
    color: #6B4226 !important;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1) !important;
}

body[data-theme="sweets"] .label-text {
    color: #FF69B4 !important;
}

body[data-theme="sweets"] #pause-btn {
    background: #FFB6C1 !important;
    border: 2px solid #FFFFFF !important;
    color: #FFFFFF !important;
    border-radius: 50% !important;
}

body[data-theme="sweets"] #game-container {
    border: 8px solid #6B4226 !important;
    border-radius: 20px;
    overflow: hidden;
}