body {
    background-color: #0f0f15;
    color: #e0e0e0;
    font-family: 'Kaisei Tokumin', serif;
    overflow-x: hidden;
    height: 100vh;
    margin: 0;
}

/* ぼかしたネオン背景 */
.neon-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('https://images.unsplash.com/photo-1550684848-fac1c5b4e853?q=80&w=1600&auto=format&fit=crop');
    background-size: cover;
    background-position: center;
    filter: blur(15px) brightness(0.4);
    z-index: -2;
    transform: scale(1.1);
}

/* 雨のアニメーション用Canvas */
#rain-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    /* ガラスの曇り感 */
    backdrop-filter: blur(2px);
}

.vertical-text {
    writing-mode: vertical-rl;
    text-orientation: upright;
}

/* ネオンサイン風の光彩 */
.neon-text-glow {
    text-shadow: 0 0 10px rgba(255, 200, 100, 0.5), 0 0 20px rgba(255, 100, 50, 0.3);
}

.menu-card {
    background: rgba(20, 20, 30, 0.6);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: transform 0.3s, background 0.3s;
}
.menu-card:hover {
    transform: translateY(-5px);
    background: rgba(20, 20, 30, 0.8);
}

/* モバイル可読性の改善 */
@media (max-width: 768px) {
    body {
        font-size: 16px;
    }
    
    h2 {
        font-size: 2rem !important;
    }
    
    h4 {
        font-size: 1.125rem !important;
    }
    
    p, .text-sm {
        font-size: 0.95rem !important;
        line-height: 1.7 !important;
    }
    
    .text-xs {
        font-size: 0.85rem !important;
    }
}