/* アニメーション初期状態 */
.fade-in,
.slide-in-left,
.slide-in-right,
.gallery-item {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(.4,0,.2,1), transform 0.8s cubic-bezier(.4,0,.2,1);
}

.slide-in-left { 
    opacity: 0;
    transform: translateX(-40px); 
    transition: opacity 0.8s cubic-bezier(.4,0,.2,1), transform 0.8s cubic-bezier(.4,0,.2,1);
}

.slide-in-right { 
    opacity: 0;
    transform: translateX(40px); 
    transition: opacity 0.8s cubic-bezier(.4,0,.2,1), transform 0.8s cubic-bezier(.4,0,.2,1);
}

/* アニメーション実行状態 */
.animated {
    opacity: 1 !important;
    transform: translateX(0) translateY(0) !important;
}

/* ヒーローセクションのアニメーション */
.hero-title,
.hero-subtitle,
.hero-buttons {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

/* スクロールインジケーター */
.scroll-indicator {
    animation: fadeInUp 1s ease-out 1.5s both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

/* ギャラリーアイテムの遅延アニメーション */
.gallery-item:nth-child(1) { transition-delay: 0.1s; }
.gallery-item:nth-child(2) { transition-delay: 0.2s; }
.gallery-item:nth-child(3) { transition-delay: 0.3s; }
.gallery-item:nth-child(4) { transition-delay: 0.4s; }
.gallery-item:nth-child(5) { transition-delay: 0.5s; }
.gallery-item:nth-child(6) { transition-delay: 0.6s; }