/* ==========================================
   1. 基本設定 & リセット
   ========================================== */
* { margin: 0; padding: 0; box-sizing: border-box; }

body, html {
    width: 100%;
    height: 100svh; /* モバイル対応の高さ指定 */
    overflow: hidden;
    background-color: #000;
}

/* ==========================================
   2. 各レイヤーの重なり (z-index)
   ========================================== */
#layer-bg       { z-index: 1; position: fixed; inset: 0; }
#bubble-lines   { z-index: 2; position: fixed; inset: 0; }
#layer-entrance { z-index: 5; position: fixed; inset: 0; }
#layer-loading  { z-index: 10000; position: fixed; inset: 0; }
#content-area   { z-index: 2000; position: fixed; }
.sub-bubble-container { z-index: 4000; position: fixed; }

/* ==========================================
   3. 背景レイヤー
   ========================================== */
#layer-bg {
    background-image: url('../images/background_entrance_01.JPG');
    background-size: cover;
    background-position: center;
    background-color: rgba(0, 0, 0, 0.04);
    background-blend-mode: darken;
    pointer-events: auto; /* クリックを検知するために必須 */
    transition: filter 1.5s ease;
}

/* メニュー展開時は暗くぼかす */
body.is-menu-open #layer-bg { filter: brightness(0.4) blur(5px); }

/* ==========================================
   4. ロゴバブル (中央)
   ========================================== */
#layer-entrance {
    display: flex; justify-content: center; align-items: center;
    opacity: 0; transform: scale(0.9);
    transition: opacity 2s ease, transform 2s cubic-bezier(0.2, 0, 0.2, 1);
    pointer-events: none; 
}
body.is-ready #layer-entrance { opacity: 1; transform: scale(1); }

#main-logo {
    position: absolute;
    top: 62%; left: 50%;
    width: 200px; height: 200px;
    
    /* マージンで中央配置 (JSのtransformと競合させないため) */
    margin-left: -100px;
    margin-top: -100px;
    
    border-radius: 50%;
    z-index: 6;
    
    /* フィルタと影 */
    filter: url(#liquid-filter) url(#corona-filter);
    box-shadow: 0 0 40px 10px rgba(255, 255, 255, 0.1), 0 0 80px 20px rgba(255, 255, 255, 0.05);
    
    /* アニメーション (揺らぎ・パルス) */
    animation: liquid-look 0.8s ease-in-out infinite, logo-corona-pulse 4s infinite ease-in-out alternate;
    
    /* JSによるマウス追従を滑らかにする設定 */
    transition: opacity 0.8s ease, transform 0.2s ease-out;
    will-change: transform;
}

@keyframes liquid-look {
    0%, 100% { filter: url(#liquid-filter) url(#corona-filter) brightness(1.05); }
    50% { filter: url(#liquid-filter) url(#corona-filter) brightness(1.15); }
}

/* ロゴ用パルス (※transformはJSに任せるため削除しました) */
@keyframes logo-corona-pulse {
    0% { box-shadow: 0 0 30px 5px rgba(255, 255, 255, 0.1); }
    100% { box-shadow: 0 0 60px 15px rgba(255, 255, 255, 0.2); }
}

/* ==========================================
   5. メインバブル共通設定
   ========================================== */
#bubble-lines { overflow: visible; pointer-events: none !important; }
#bubble-lines path {
    fill: none !important;
    stroke-width: 1; /* 基本の太さ */
    stroke-linecap: round;
    opacity: 0.6;
    transition: opacity 10s ease;
    
    /* フィルタで発光と少しのゆらぎを加える */
    filter: drop-shadow(0 0 5px var(--glow-color, rgba(255,255,255,0.5))) url(#liquid-filter);
}

.bubble {
    position: absolute; display: flex; justify-content: center; align-items: center;
    cursor: pointer; pointer-events: auto !important; user-select: none;
    opacity: 0; color: white;
    font-family: 'Space Mono', monospace; font-weight: bold; font-size: 2rem;
    text-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(2px); border-radius: 50% !important; overflow: hidden;
    transform-origin: center center;
    filter: url(#corona-filter);
    
    /* 構文エラー修正済み: カンマで区切って記述 */
    transition: transform 0.5s cubic-bezier(0.2, 0, 0.2, 1), 
                opacity 1s, 
                filter 0.3s, 
                visibility 1.5s, 
                box-shadow 0.3s;
    
    animation: float-bubble 15s infinite ease-in-out, corona-pulse 4s infinite ease-in-out alternate;
}

/* ホバー時の強調 (サブバブルと同じ動きに統一) */
.bubble:hover {
    animation-play-state: paused;
    /* transitionを上書きしてキビキビ動かす */
    transition: transform 0.3s ease, filter 0.3s, box-shadow 0.3s;
    transform: scale(1.1) translateY(-5px) !important;
    filter: url(#corona-filter) brightness(1.3);
    z-index: 10;
    box-shadow: 0 0 50px 15px rgba(255, 255, 255, 0.4), 
                0 0 80px 30px var(--bg-color), 
                inset 0 0 30px rgba(255, 255, 255, 0.5);
}
.bubble:hover span { text-shadow: 0 0 20px rgba(255, 255, 255, 1); }

/* 状態管理 */
body.is-ready .bubble { opacity: 1; }
body.is-switching .bubble, body.is-menu-open .bubble { pointer-events: none !important; }
.bubble span { pointer-events: none; transition: opacity 0.5s ease; }

@keyframes float-bubble {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    50% { transform: translate(-10px, -20px) rotate(-1deg); }
}

@keyframes corona-pulse {
    0% { box-shadow: 0 0 30px 5px rgba(255, 255, 255, 0.2), 0 0 50px 15px var(--bg-color), inset 0 0 30px rgba(255, 255, 255, 0.4); }
    100% { box-shadow: 0 0 50px 15px rgba(255, 255, 255, 0.3), 0 0 80px 30px var(--bg-color), inset 0 0 50px rgba(255, 255, 255, 0.5); }
}

/* 個別配置 */
.bubble.b5 { --init-size: 200px; --bg-color: #9933ff; width: var(--init-size); height: var(--init-size); top: 8%; left: 50%; transform: translateX(-50%); background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.6), rgba(170, 205, 150, 0.5)); }
.bubble.b1 { --init-size: 260px; --bg-color: #ffcc00; width: var(--init-size); height: var(--init-size); top: 12%; left: 14%; background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.6), rgba(220, 130, 130, 0.5)); }
.bubble.b2 { --init-size: 190px; --bg-color: #ff3366; width: var(--init-size); height: var(--init-size); top: 15%; right: 8%; background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.6), rgba(220, 205, 140, 0.5)); }
.bubble.b3 { --init-size: 230px; --bg-color: #00ffcc; width: var(--init-size); height: var(--init-size); bottom: 12%; left: 10%; background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.6), rgba(150, 180, 225, 0.5)); }
.bubble.b4 { --init-size: 170px; --bg-color: #3366ff; width: var(--init-size); height: var(--init-size); bottom: 15%; right: 10%; background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.6), rgba(180, 150, 225, 0.5)); }

/* ==========================================
   6. 遷移・拡大アニメーション
   ========================================== */
.bubble.expanding {
    --target-scale: calc(850px / var(--init-size));
    animation: bubble-to-center 1.2s forwards cubic-bezier(0.4, 0, 0.2, 1) !important;
    z-index: 1000 !important;
    pointer-events: auto !important; /* 拡大後もクリック(背景へのクリック)を遮る */
}

.bubble.shrinking {
    --target-scale: calc(850px / var(--init-size));
    animation: bubble-from-center 1.2s forwards cubic-bezier(0.4, 0, 0.2, 1) !important;
    z-index: 1000 !important;
}

@keyframes bubble-to-center {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(var(--move-x), var(--move-y)) scale(var(--target-scale)); background-color: var(--bg-color) !important; opacity: 0.95; filter: url(#corona-filter) blur(2px); }
}

@keyframes bubble-from-center {
    0% { transform: translate(var(--move-x), var(--move-y)) scale(var(--target-scale)); background-color: var(--bg-color); opacity: 0.95; }
    100% { transform: translate(0, 0) scale(1); background-color: initial; opacity: 1; }
}

/* ==========================================
   7. コンテンツ表示エリア (メインコンテナ)
   ========================================== */

/* 画面中央に表示されるコンテンツの土台 */
#content-area {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    max-width: 800px;
    text-align: center;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.6s ease-out;
    z-index: 3000 !important;
}

/* 表示状態のクラス */
#content-area.visible {
    opacity: 1;
    pointer-events: auto;
}

/* 内部のテキスト要素 (タイトル・説明文) */
#inner-content h1 {
    color: white;
    font-size: 3.5rem;
    letter-spacing: 0.5rem;
    margin-bottom: 20px;
}

#inner-content p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.2rem;
    line-height: 1.8;
    margin-bottom: 30px;
}

/* 戻るボタン */
.back-button {
    display: inline-block !important;
    background: transparent;
    border: 1px solid white;
    color: white;
    padding: 12px 24px;
    cursor: pointer;
    font-family: 'Space Mono', monospace;
    transition: all 0.3s;
}

.back-button:hover {
    background: rgba(255,255,255,0.2);
    letter-spacing: 2px;
}

/* ------------------------------------------
   MUSICセクション：ビデオプレイヤー
   ------------------------------------------ */

/* YouTube埋め込み等の動画コンテナ */
.video-container {
    width: 100%;
    max-width: 500px; /* 圧迫感を抑えたサイズ設定 */
    aspect-ratio: 16 / 9;
    margin: 20px auto 30px;
    background: #000;
    border-radius: 12px;
    overflow: hidden;
    /* 外側の光 (ネオンエフェクト) */
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.6), 0 0 20px rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.video-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* ------------------------------------------
   MUSICセクション：サブコンテンツバブル (小)
   ------------------------------------------ */

/* --- style.css --- */

/* サブコンテンツバブル（小型）のサイズ調整 */
.sub-content-item {
    /* 巨大バブルの約1/3の視覚的サイズに設定 */
    width: 1px;  /* ここを調整（420pxの約1/3） */
    height: 1px; 
    border-radius: 50%;
    
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 15px;
}

/* アイコンとラベルもサイズに合わせて微調整 */
.sub-content-item i, 
.sub-content-item img {
    width: 35px;
    height: 35px;
}

.sub-content-item .label {
    font-size: 0.8rem;
    letter-spacing: 0.1rem;
    margin-top: 8px;
}

.sub-content-item:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.05);
}

/* ==========================================
   サブバブル (巨大・背景演出用)：メインと完全同期
   ========================================== */

/* メインバブル展開時に背後に現れる巨大な装飾用バブル */
.mini-bubble {
    position: absolute;
    width: 45vw; 
    height: 45vw;
    min-width: 420px;
    min-height: 420px;
    max-width: 750px;
    max-height: 750px;
    
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    font-size: 1.4rem;
    font-family: 'Space Mono', monospace;
    cursor: pointer;
    pointer-events: auto;
    opacity: 0;
    
    /* 演出：メインバブルと同じ液体アニメーションを適用 */
    animation: corona-pulse 4s infinite ease-in-out alternate;
    /* 彩度と明るさを抑え、背景に馴染ませる */
    filter: url(#liquid-filter) url(#corona-filter) saturate(0.3) brightness(0.7);
    
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
    
    /* 初期座標と遷移設定 */
    transform: translate(-50%, -50%) scale(0) rotate(var(--random-rotate));
    transition: all 1.5s cubic-bezier(0.16, 1, 0.3, 1);
    
    z-index: -1; 
    mix-blend-mode: screen; /* 重なり部分を美しく発光させる */
}

/* 表示アニメーション完了後の状態 */
.mini-bubble.show {
    opacity: 0.9;
    transform: translate(calc(-50% + var(--target-x)), calc(-50% + var(--target-y))) scale(1) rotate(var(--random-rotate));
}

/* ホバー時の反応：鮮やかさを取り戻し、最前面に浮き上がる */
.mini-bubble:hover {
    opacity: 1;
    z-index: 10;
    filter: url(#liquid-filter) url(#corona-filter) saturate(1) brightness(1.1);
    transform: translate(calc(-50% + var(--target-x)), calc(-50% + var(--target-y))) scale(1.05) rotate(0deg);
    box-shadow: 0 0 80px rgba(255, 255, 255, 0.4);
    mix-blend-mode: normal;
}

.mini-bubble span {
    text-align: center;
    pointer-events: none;
}

/* ==========================================
   8. ロード画面 (背景ノイズ削除・テキストグリッチ維持)
   ========================================== */
#layer-loading {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    /* 背景を透過させ、背後のコンテンツが見えるように設定 */
    background: rgba(0, 0, 0, 0.4); 
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    
    z-index: 10000;
    position: fixed;
    inset: 0;
    transition: opacity 1.5s ease, visibility 1.5s;
    overflow: hidden;
}

/* 準備完了時に消去 */
body.is-ready #layer-loading {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loading-ui {
    position: relative;
    z-index: 20;
    text-align: center;
}

/* ------------------------------------------
   テキスト：時空のズレ（グリッチ）
   ------------------------------------------ */
.glitch {
    position: relative;
    color: white;
    font-family: 'Space Mono', monospace;
    font-size: 1.4rem;
    letter-spacing: 0.8rem;
    margin-bottom: 30px;
    /* 色収差（赤と青のズレ） */
    text-shadow: 0.05em 0 0 rgba(255, 0, 0, 0.75),
                -0.025em -0.05em 0 rgba(0, 255, 0, 0.75),
                0.025em 0.05em 0 rgba(0, 0, 255, 0.75);
    animation: glitch-main 0.5s infinite, loading-glow 3s infinite ease-in-out;
}

/* 擬似要素で文字を裂く (HTML側に data-text="NOW LOADING" が必要) */
.glitch::before,
.glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    opacity: 0.8;
}

.glitch::before {
    animation: glitch-slice 0.4s cubic-bezier(.25, .46, .45, .94) infinite;
    color: #ff00ff;
    z-index: -1;
    clip-path: polygon(0 0, 100% 0, 100% 45%, 0 45%);
    transform: translate(-5px);
}

.glitch::after {
    animation: glitch-slice 0.4s cubic-bezier(.25, .46, .45, .94) reverse infinite;
    color: #00ffff;
    z-index: -2;
    clip-path: polygon(0 80%, 100% 80%, 100% 100%, 0 100%);
    transform: translate(5px);
}

/* ------------------------------------------
   ゲージ（シンプル版：ノイズなし）
   ------------------------------------------ */
.loading-bar-container {
    width: 285px;
    height: 2px;
    background: rgba(255, 255, 255, 0.1);
    position: relative;
}

.loading-bar {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: #fff;
    transform: scaleX(0);
    transform-origin: left;
    animation: loadAccumulate 2.5s forwards cubic-bezier(0.42, 0, 0.58, 1);
    filter: url(#corona-filter);
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

/* ------------------------------------------
   アニメーション
   ------------------------------------------ */
@keyframes loadAccumulate { 
    0% { transform: scaleX(0); } 
    100% { transform: scaleX(1); } 
}

@keyframes loading-glow { 
    0%, 100% { opacity: 0.7; transform: scale(0.98); } 
    50% { opacity: 1; transform: scale(1.02); } 
}

@keyframes glitch-main {
    0% { transform: none; opacity: 1; }
    7% { transform: skew(-3deg); opacity: 0.75; }
    10% { transform: none; opacity: 1; }
    27% { transform: none; }
    30% { transform: skew(0.8deg); }
    35% { transform: none; }
}

@keyframes glitch-slice {
    0% { clip-path: inset(80% 0 0 0); transform: translate(-10px, 5px); }
    20% { clip-path: inset(20% 0 60% 0); transform: translate(10px, -5px); }
    40% { clip-path: inset(40% 0 40% 0); transform: translate(-5px, 0); }
    60% { clip-path: inset(0% 0 80% 0); transform: translate(5px, 5px); }
    80% { clip-path: inset(60% 0 20% 0); transform: translate(-10px, -2px); }
    100% { clip-path: inset(10% 0 70% 0); transform: translate(0); }
}

/* ==========================================
   9. SNSアイコン
   ========================================== */
.sub-bubble-container {
    position: fixed; bottom: 2%; left: 50%; transform: translateX(-50%);
    display: flex; justify-content: center; align-items: center; gap: 20px;
    z-index: 4000; pointer-events: auto !important;
}
.sub-bubble {
    width: 45px; height: 45px; border: 1px solid rgba(255, 255, 255, 0.3); border-radius: 50% !important;
    display: flex; justify-content: center; align-items: center; overflow: hidden;
    background: rgba(255, 255, 255, 0.2); backdrop-filter: blur(4px); transition: all 0.3s ease;
}
.sub-bubble img {
    width: 65%; height: 65%; object-fit: contain;
    filter: grayscale(100%) brightness(1.2) drop-shadow(0 0 2px rgba(0,0,0,0.2));
    opacity: 0.7; transition: all 0.3s ease;
}
.sub-bubble:hover img { filter: grayscale(0%) brightness(1.5) drop-shadow(0 0 5px rgba(255,255,255,0.5)); opacity: 1; transform: scale(1.1); }
.sub-bubble:hover { transform: translateY(-5px) scale(1.1); background: rgba(255, 255, 255, 0.6); color: #000; }
body.is-menu-open .sub-bubble { opacity: 1 !important; pointer-events: auto !important; }

/* ==========================================
   10. レスポンシブ (スマホ用)
   ========================================== */
@media screen and (max-width: 768px) {
    #main-logo { top: 58%; width: 130px; margin-left: -65px; margin-top: -65px; }
    .bubble { --init-size: 105px !important; width: var(--init-size) !important; height: var(--init-size) !important; font-size: 0.6rem; }
    .bubble.b5 { top: 8%; } 
    .bubble.b1 { top: 20%; left: 10%; } 
    .bubble.b2 { top: 22%; right: 2%; } 
    .bubble.b3 { bottom: 20%; left: 5%; }
    .bubble.b4 { bottom: 20%; right: 5%; }
    #inner-content h1 { font-size: 2.2rem !important; }
    .sub-bubble-container { bottom: 18svh; width: 100%; left: 0; transform: none; gap: 12px; }
    .sub-bubble { width: 40px; height: 40px; }
}

/* ==========================================
   11.ヘッダー画面
   ========================================== */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 60px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 40px;
    z-index: 5000; /* バブル(4000)より前面に配置 */
    background: rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.header-logo {
    font-family: 'Space Mono', monospace;
    color: white;
    font-weight: bold;
    letter-spacing: 2px;
    font-size: 1.2rem;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

.header-nav ul {
    display: flex;
    list-style: none;
    gap: 30px;
}

.header-nav a {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.7);
    font-family: 'Space Mono', monospace;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.header-nav a:hover {
    color: white;
    text-shadow: 0 0 8px rgba(255, 255, 255, 0.8);
    letter-spacing: 1px;
}

/* スマホ対応 */
@media screen and (max-width: 768px) {
    .main-header {
        padding: 0 20px;
    }
    .header-nav {
        display: none; /* スマホではナビを非表示にするかハンバーガーに変更 */
    }
}

.header-clock {
    color: rgba(255, 255, 255, 0.5);
    font-family: 'Space Mono', monospace;
    font-size: 0.85rem;
    
    /* 仕切り線を「右」から「左」に変更 */
    margin-left: 20px;
    border-left: 1px solid rgba(255, 255, 255, 0.2);
    border-right: none; /* もし残っていたら消す */
    padding-left: 20px;
    padding-right: 0;
    
    letter-spacing: 1px;
}

#current-time {
    color: white;
    font-weight: bold;
}

/* サイドパネル外枠 */
.panel-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(0px); /* 最初はぼかさない */
    display: flex;
    justify-content: flex-end; /* 右側に寄せる */
    z-index: 9000;
    visibility: hidden;
    transition: all 0.5s ease;
}

.panel-overlay.show {
    visibility: visible;
    backdrop-filter: blur(8px);
}

/* パネル本体 */
.panel-content {
    width: 450px;
    height: 100%;
    background: rgba(10, 10, 10, 0.85);
    border-left: 1px solid rgba(255, 255, 255, 0.2);
    padding: 60px 40px;
    transform: translateX(100%); /* 画面外へ隠す */
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
}

.panel-overlay.show .panel-content {
    transform: translateX(0); /* スライドイン */
}

/* 閉じるボタン */
.panel-close {
    position: absolute;
    top: 20px;
    left: 20px;
    background: none;
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    transition: 0.3s;
}

.panel-close:hover {
    background: white;
    color: black;
}

/* パネル内テキスト */
#panel-inner h2 {
    font-family: 'Space Mono', monospace;
    font-size: 2rem;
    letter-spacing: 5px;
    margin-bottom: 30px;
    color: white;
}

#panel-inner p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 2;
    font-size: 0.95rem;
}

/* イベントボタン特有のスタイル */
.btn-event {
    color: #00ffcc !important; /* 少し色味を変えて目立たせる */
    position: relative;
}

/* 小さなドットのバッジを表示 */
.btn-event::after {
    content: '';
    position: absolute;
    top: -2px;
    right: -8px;
    width: 6px;
    height: 6px;
    background: #ff3366;
    border-radius: 50%;
    animation: event-pulse 1.5s infinite;
}

@keyframes event-pulse {
    0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(255, 51, 102, 0.7); }
    70% { transform: scale(1.2); box-shadow: 0 0 0 6px rgba(255, 51, 102, 0); }
    100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(255, 51, 102, 0); }
}

/* パネル内のカード装飾 */
.event-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 20px;
    border: 1px solid rgba(0, 255, 204, 0.3);
    border-radius: 4px;
}

.status-badge {
    display: inline-block;
    background: #00ffcc;
    color: #000;
    padding: 2px 8px;
    font-size: 0.7rem;
    font-weight: bold;
    margin-bottom: 10px;
}

/* イベント画像（カレンダー等）のコンテナ */
.event-image-container {
    width: 100%;
    margin-bottom: 20px;
    border-radius: 4px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.event-calendar-img {
    width: 100%;
    height: auto;
    display: block;
    filter: brightness(0.9) contrast(1.1);
    transition: transform 0.3s ease;
}

.event-calendar-img:hover {
    transform: scale(1.03); /* 少しズームアップ */
}

/* YouTube予約ボタン */
.yt-reserve-button {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 15px;
    margin-top: 20px;
    background: #ff0000; /* YouTube Red */
    color: #fff;
    text-decoration: none;
    font-family: 'Space Mono', monospace;
    font-weight: bold;
    font-size: 0.9rem;
    border-radius: 4px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255, 0, 0, 0.3);
}

.yt-reserve-button:hover {
    background: #cc0000;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 0, 0, 0.5);
    letter-spacing: 1px;
}

.event-info-footer {
    margin-top: 20px;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.4);
    text-align: center;
}