:root {
    --color-bg-base: #121015;
    --color-rose-pink: #E0659C;
    --color-light-pink: #E99BB0;
    --color-white: #FFFFFF;
    --color-ice-blue: #71ABD9;
    --color-accent-red: #DF1A24;
}

body {
    background: linear-gradient(rgba(18, 16, 21, 0.85), rgba(18, 16, 21, 0.85)), 
                url('images/bg_touhou.webp') no-repeat center center fixed;
    background-size: cover;
    color: var(--color-white);
    font-family: 'Shippori Mincho B1', serif;
    margin: 0;
    padding: 0;
    line-height: 1.8;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

/* ==========================================
   紅葉エフェクト（カラー直接埋め込み・SVG版）
   ========================================== */
.leaves-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.leaf {
    position: absolute;
    top: -10vh;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    animation: fallLeaf 10s infinite linear;
}

/* それぞれの葉っぱにカラーコードを直接持たせています */
.leaf:nth-child(1) { width: 28px; height: 28px; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 512 512'%3E%3Cpath fill='%23b82a22' d='M256 16c-12 35-36 68-72 92-36 24-76 33-112 24 22 42 32 87 20 132-28-17-64-26-104-26 23 44 63 76 112 90-18 36-45 68-81 90 54 9 108 0 153-27-9 45-27 85-54 121 54-18 103-54 139-103 36 49 85 85 139 103-27-36-45-76-54-121 45 27 99 36 153 27-36-22-63-54-81-90 49-14 89-46 112-90-40 0-76 9-104 26-12-45-2-90 20-132-36 9-76 0-112-24-36-24-60-57-72-92z'/%3E%3C/svg%3E"); filter: drop-shadow(0 0 2px rgba(0,0,0,0.5)); left: 15%; animation-duration: 9s; animation-delay: 0s; }
.leaf:nth-child(2) { width: 22px; height: 22px; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 512 512'%3E%3Cpath fill='%23d9622b' d='M256 16c-12 35-36 68-72 92-36 24-76 33-112 24 22 42 32 87 20 132-28-17-64-26-104-26 23 44 63 76 112 90-18 36-45 68-81 90 54 9 108 0 153-27-9 45-27 85-54 121 54-18 103-54 139-103 36 49 85 85 139 103-27-36-45-76-54-121 45 27 99 36 153 27-36-22-63-54-81-90 49-14 89-46 112-90-40 0-76 9-104 26-12-45-2-90 20-132-36 9-76 0-112-24-36-24-60-57-72-92z'/%3E%3C/svg%3E"); filter: drop-shadow(0 0 2px rgba(0,0,0,0.5)); left: 35%; animation-duration: 13s; animation-delay: 3s; }
.leaf:nth-child(3) { width: 32px; height: 32px; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 512 512'%3E%3Cpath fill='%23c43c1d' d='M256 16c-12 35-36 68-72 92-36 24-76 33-112 24 22 42 32 87 20 132-28-17-64-26-104-26 23 44 63 76 112 90-18 36-45 68-81 90 54 9 108 0 153-27-9 45-27 85-54 121 54-18 103-54 139-103 36 49 85 85 139 103-27-36-45-76-54-121 45 27 99 36 153 27-36-22-63-54-81-90 49-14 89-46 112-90-40 0-76 9-104 26-12-45-2-90 20-132-36 9-76 0-112-24-36-24-60-57-72-92z'/%3E%3C/svg%3E"); filter: drop-shadow(0 0 2px rgba(0,0,0,0.5)); left: 55%; animation-duration: 11s; animation-delay: 1s; }
.leaf:nth-child(4) { width: 24px; height: 24px; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 512 512'%3E%3Cpath fill='%23d99423' d='M256 16c-12 35-36 68-72 92-36 24-76 33-112 24 22 42 32 87 20 132-28-17-64-26-104-26 23 44 63 76 112 90-18 36-45 68-81 90 54 9 108 0 153-27-9 45-27 85-54 121 54-18 103-54 139-103 36 49 85 85 139 103-27-36-45-76-54-121 45 27 99 36 153 27-36-22-63-54-81-90 49-14 89-46 112-90-40 0-76 9-104 26-12-45-2-90 20-132-36 9-76 0-112-24-36-24-60-57-72-92z'/%3E%3C/svg%3E"); filter: drop-shadow(0 0 2px rgba(0,0,0,0.5)); left: 75%; animation-duration: 15s; animation-delay: 5s; }
.leaf:nth-child(5) { width: 30px; height: 30px; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 512 512'%3E%3Cpath fill='%23a62118' d='M256 16c-12 35-36 68-72 92-36 24-76 33-112 24 22 42 32 87 20 132-28-17-64-26-104-26 23 44 63 76 112 90-18 36-45 68-81 90 54 9 108 0 153-27-9 45-27 85-54 121 54-18 103-54 139-103 36 49 85 85 139 103-27-36-45-76-54-121 45 27 99 36 153 27-36-22-63-54-81-90 49-14 89-46 112-90-40 0-76 9-104 26-12-45-2-90 20-132-36 9-76 0-112-24-36-24-60-57-72-92z'/%3E%3C/svg%3E"); filter: drop-shadow(0 0 2px rgba(0,0,0,0.5)); left: 88%; animation-duration: 8s; animation-delay: 2s; }
.leaf:nth-child(6) { width: 26px; height: 26px; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 512 512'%3E%3Cpath fill='%23d97723' d='M256 16c-12 35-36 68-72 92-36 24-76 33-112 24 22 42 32 87 20 132-28-17-64-26-104-26 23 44 63 76 112 90-18 36-45 68-81 90 54 9 108 0 153-27-9 45-27 85-54 121 54-18 103-54 139-103 36 49 85 85 139 103-27-36-45-76-54-121 45 27 99 36 153 27-36-22-63-54-81-90 49-14 89-46 112-90-40 0-76 9-104 26-12-45-2-90 20-132-36 9-76 0-112-24-36-24-60-57-72-92z'/%3E%3C/svg%3E"); filter: drop-shadow(0 0 2px rgba(0,0,0,0.5)); left: 5%; animation-duration: 12s; animation-delay: 4s; }

@keyframes fallLeaf {
    0% {
        transform: translateY(-10vh) translateX(0) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 0.9;
    }
    90% {
        opacity: 0.9;
    }
    100% {
        transform: translateY(105vh) translateX(120px) rotate(720deg);
        opacity: 0;
    }
}


/* ==========================================
   背景のグロー発光エフェクト（ボワボワと光が満ち引きする）
   ========================================== */
.ambient-glow-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(70px);
    opacity: 0.4;
    animation: pulseGlow 6s infinite ease-in-out;
}

.glow-orb:nth-child(1) {
    width: 450px;
    height: 450px;
    background: rgba(224, 101, 156, 0.35);
    top: 10%;
    left: 10%;
    animation-duration: 8s;
    animation-delay: 0s;
}

.glow-orb:nth-child(2) {
    width: 550px;
    height: 550px;
    background: rgba(113, 171, 217, 0.3);
    bottom: 5%;
    right: 10%;
    animation-duration: 10s;
    animation-delay: 3s;
}

.glow-orb:nth-child(3) {
    width: 400px;
    height: 400px;
    background: rgba(223, 26, 36, 0.25);
    top: 45%;
    right: 35%;
    animation-duration: 7s;
    animation-delay: 1.5s;
}

@keyframes pulseGlow {
    0%, 100% {
        transform: scale(0.8);
        opacity: 0.2;
    }
    50% {
        transform: scale(1.3);
        opacity: 0.5;
    }
}


/* ==========================================
   メインコンテンツのレイヤー
   ========================================== */
.wrapper {
    position: relative;
    z-index: 2;
}

/* ==========================================
   【左上固定】サイトロゴ・ヘッダー
   ========================================== */
.site-header {
    position: fixed;
    top: 25px;
    left: 25px;
    z-index: 100;
    margin: 0;
    padding: 0;
}

.logo-link {
    display: inline-block;
    transition: opacity 0.3s ease;
}

.logo-link:hover {
    opacity: 0.7;
}

.site-logo {
    max-width: 160px;
    height: auto;
    display: block;
}

/* メインコンテナ */
main {
    max-width: 1150px;
    margin: 0 auto;
    padding: 40px 20px 20px;
    box-sizing: border-box;
}

/* ==========================================
   【9スライス対応ボックス設定】（白背景・黒文字仕様）
   ========================================== */
.event-card {
    border: 40px solid transparent;
    border-image: url('images/box_frame.png') 40 fill / 40px / 0 stretch;

    background-color: transparent;
    background-image: none;
    border-radius: 0;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
    backdrop-filter: none;

    color: #221818;
    padding: 65px 50px;
    margin-bottom: 40px;
    box-sizing: border-box;
}

h1, h2 {
    font-family: 'Shippori Mincho B1', serif;
    letter-spacing: 0.05em;
}

.section-heading {
    color: #221818;
    font-size: 1.5rem;
    border-bottom: 2px solid #b82a22;
    padding-bottom: 10px;
    margin-bottom: 25px;
    text-align: center;
}

/* イベント情報リスト */
.info-list {
    font-size: 1.1rem;
    text-align: center;
    list-style: none;
    padding: 0;
}
.info-list li {
    margin: 12px 0;
    color: #221818;
}
.info-list strong {
    color: #b82a22;
}

/* お品書きフレックス */
.lineup-content {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    align-items: center;
}
.lineup-img-area {
    flex: 1;
    min-width: 280px;
    text-align: center;
}
.lineup-img-area img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    border: 1px solid rgba(184, 42, 34, 0.3);
}
.lineup-text-area {
    flex: 1.8;
    min-width: 280px;
}

/* タグ */
.tag-badge {
    background: #b82a22;
    color: #ffffff;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: bold;
    display: inline-block;
    margin-bottom: 10px;
}
.tag-blue {
    background: #2b6294;
    color: #ffffff;
    margin-left: 8px;
}

h3 {
    color: #b82a22;
    font-size: 1.3rem;
    margin: 0 0 15px 0;
}

p {
    color: #3b2c2c;
    margin-bottom: 15px;
    font-size: 0.95rem;
}

.price {
    font-size: 1.15rem;
    color: #b82a22;
    font-weight: bold;
}

/* 注意事項リスト */
.notice-list {
    color: #3b2c2c;
    padding-left: 20px;
    font-size: 0.95rem;
}
.notice-list li {
    margin-bottom: 10px;
}

/* アクセント赤ボタン（DF1A24） */
.accent-button {
    display: block;
    width: fit-content;
    margin: 50px auto 20px;
    padding: 16px 45px;
    background: linear-gradient(45deg, #8a0e13, var(--color-accent-red));
    color: var(--color-white);
    font-family: 'Shippori Mincho B1', serif;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 50px;
    border: 1px solid rgba(255, 100, 100, 0.4);
    box-shadow: 0 0 15px rgba(223, 26, 36, 0.7), 
                0 0 5px rgba(255, 100, 100, 0.4) inset;
    transition: all 0.3s ease;
    text-align: center;
}
.accent-button:hover {
    background: linear-gradient(45deg, var(--color-accent-red), #ff4d55);
    transform: translateY(-3px);
    box-shadow: 0 0 25px rgba(223, 26, 36, 0.9), 
                0 0 10px var(--color-light-pink) inset;
}

/* ==========================================
   上下に積み上げる特別レイアウト（新刊セット用）
   ========================================== */
.lineup-content.lineup-stack {
    display: block;
}

.lineup-content.lineup-stack .lineup-img-area {
    width: 100%;
    margin-bottom: 25px;
    text-align: center;
}

.lineup-content.lineup-stack .lineup-img-area img {
    width: 100%;          
    max-width: 100%;      
    height: auto;
    display: block;
    margin: 0 auto;
}

.lineup-content.lineup-stack .lineup-text-area {
    width: 100%;
    text-align: center;
}

/* 白に近いグレーの文字用クラス */
.text-light-gray {
    color: rgba(191, 191, 191, 0.75); /* お好みで #dcdcdc などのカラーコードでもOKです */
}