/* =========================================================
   1. 基本設定 & 全体レイアウト
   ========================================================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    font-family: 'Noto Sans JP', sans-serif;
    background-color: #0d0104;
    color: #fff;
    overflow-x: hidden;
}

/* 全体ラッパー */
.main-wrapper {
    position: relative;
    width: 100%;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* PC版の背景画像（デフォルト） */
.stage-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 1;
    background-image: url("../images/coming/bg-stage.jpg");
    background-size: cover;
    background-position: center top;
    background-repeat: no-repeat;
}

/* エフェクト動画 */
.effect-video {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    object-fit: cover;
    z-index: 2;
    pointer-events: none;
    mix-blend-mode: screen;
}

/* コンテナ */
.container {
    position: relative;
    z-index: 3;
    width: 100%;
    max-width: 1000px;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 40px 20px;
    text-align: center;
}

/* =========================================================
   2. PC版のデザインサイズ
   ========================================================= */

/* --- 上部GIFバナー --- */
.top-banner {
    width: 100%;
    max-width: 800px;
    margin-top: 20px;
    margin-bottom: 25px;
}
.banner-image {
    width: 100%;
    height: auto;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.8);
    border-radius: 4px;
}

/* --- 最上部テキスト --- */
.header {
    margin-top: 30px;
    margin-bottom: 30px;
}
.top-title {
    width: 100%;
    max-width: 410px;
    height: auto;
    margin-bottom: 10px;
    display: block;
    margin-left: auto;
    margin-right: auto;
}
.red-subtitle {
    color: #d10000;
    font-size: 1.1rem;
    font-weight: 700;
    margin: 0;
}

/* --- 中央コンテンツ --- */
.content {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 30px;
}
.logo-area {
    width: 100%;
    max-width: 550px;
    margin-bottom: 20px;
}
.logo-image {
    width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
}

.booking-text-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 10px;
}

/* 「サイト公開まで」の画像 */
.info-release-image {
    width: 100%;
    max-width: 350px;
    height: auto;
    margin-bottom: 10px;
    filter: drop-shadow(0px 4px 6px rgba(0, 0, 0, 0.6));
    display: block;
    margin-left: auto;
    margin-right: auto;
}

/* =========================================================
   3. カウントダウンタイマー
   ========================================================= */
.countdown-wrapper {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 15px;
}

.time-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1a0808 0%, #0a0202 100%);
    border: 1px solid #8a2a2a;
    border-radius: 8px;
    padding: 10px 15px;
    min-width: 80px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.8);
}

.time-box span {
    color: #fffef0;
    font-size: 2.6rem;
    font-weight: 700;
    font-family: 'Yu Mincho', 'Hiragino Mincho ProN', 'Noto Serif JP', serif;
    line-height: 1.1;
    margin-bottom: 2px;
    text-shadow:
        0 0 5px rgba(255, 255, 255, 0.8),
        0 0 10px rgba(255, 200, 50, 0.4),
        0 0 20px rgba(220, 20, 20, 0.9),
        0 0 35px rgba(220, 20, 20, 0.8);
}

.time-box .label {
    color: #e5c38c;
    font-size: 0.85rem;
    margin-top: 5px;
    font-weight: normal;
    font-family: 'Yu Mincho', 'Hiragino Mincho ProN', 'Noto Serif JP', serif;
    letter-spacing: 0.05em;
}

/* =========================================================
   4. 下部バナーエリア（PC版）
   ========================================================= */
.bottom-banner-area {
    width: 100%;
    max-width: 600px;
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}
.bottom-banner-link {
    width: 100%;
    display: block;
    transition: transform 0.3s ease, filter 0.3s ease;
}
.bottom-banner-link:hover {
    transform: scale(1.02);
    filter: brightness(1.1);
}
.bottom-banner-image {
    width: 100%;
    height: auto;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.7);
    border-radius: 6px;
    vertical-align: middle;
}

/* =========================================================
   ★新設：5. 年齢認証ゲート（AGE GATE）のデザイン
   ========================================================= */
.age-gate-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(10, 2, 4, 0.96); /* メイン画面を完全に隠す濃い赤黒 */
    z-index: 9999; /* 何があっても一番手前に表示する数値 */
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

/* 警告ボックス本体 */
.age-gate-box {
    background: linear-gradient(145deg, #1f080c 0%, #080102 100%);
    border: 2px solid #8a2a2a;
    border-radius: 12px;
    padding: 40px 30px;
    max-width: 500px;
    width: 100%;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8), 0 0 20px rgba(138, 42, 42, 0.3);
}

/* タイトル（ゴールドメタリック調） */
.age-gate-title {
    font-family: 'Times New Roman', serif;
    font-size: 2rem;
    font-weight: bold;
    letter-spacing: 0.1em;
    background: linear-gradient(to bottom, #ffffff 0%, #f9d976 40%, #e5b244 60%, #b37719 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 25px;
    filter: drop-shadow(0px 2px 4px rgba(0,0,0,0.8));
}

/* 注意書き */
.age-gate-text {
    font-size: 1rem;
    line-height: 1.8;
    color: #e0e0e0;
    margin-bottom: 20px;
}

/* 質問テキスト（赤） */
.age-gate-question {
    font-size: 1.1rem;
    font-weight: bold;
    color: #ff3333;
    margin-bottom: 30px;
    letter-spacing: 0.05em;
}

/* ボタンの並び */
.age-gate-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

/* ボタン共通設定 */
.age-gate-buttons button {
    padding: 12px 30px;
    font-size: 1rem;
    font-weight: bold;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
    max-width: 180px;
}

/* YESボタン（赤・金ゴールドの厳格なデザイン） */
.btn-yes {
    background: linear-gradient(to bottom, #d10000 0%, #8a0000 100%);
    color: #fff;
    border: 1px solid #ff4d4d;
    box-shadow: 0 4px 10px rgba(209, 0, 0, 0.4);
}
.btn-yes:hover {
    transform: translateY(-2px);
    filter: brightness(1.2);
    box-shadow: 0 6px 15px rgba(209, 0, 0, 0.6);
}

/* NOボタン（落ち着いたグレー） */
.btn-no {
    background: #2b2b2b;
    color: #aaa;
    border: 1px solid #444;
}
.btn-no:hover {
    background: #383838;
    color: #fff;
}

/* =========================================================
   6. レスポンシブ対応（スマホ表示）
   ========================================================= */
@media (max-width: 768px) {

    .stage-background {
        background-image: url("../images/coming/bg-stage-sp.png");
        background-position: center center;
    }

    .container {
        padding: 15px 10px 40px 10px;
    }

    .top-banner {
        max-width: 100%;
        margin-top: 10px;
        margin-bottom: 15px;
    }