:root {
    --bg-color: #050505;
    --card-bg: #121212;
    --neon-pink: #FF1493;
    --neon-blue: #00BFFF;
    --text-color: #ffffff;
    --sub-text: #b0b0b0;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

/* 背景の光エフェクト */
.bg-glow {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 50%, rgba(255, 20, 147, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(0, 191, 255, 0.08) 0%, transparent 40%);
    z-index: -1;
}

/* ヒーローセクション */
header {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 100px 20px;
}

.hero-container {
    display: flex;
    flex-direction: row-reverse; /* 画像を右側に配置 */
    align-items: center;
    max-width: 1200px;
    gap: 50px;
}

.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
}

.floating-image {
    max-width: 100%;
    height: auto;
    filter: drop-shadow(0 0 30px rgba(0, 191, 255, 0.2));
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.hero-content {
    flex: 1;
    text-align: left;
}

.logo {
    font-size: 3.5rem;
    font-weight: 900;
    letter-spacing: 4px;
    margin-bottom: 1rem;
    background: linear-gradient(to right, var(--neon-pink), var(--neon-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-content h1 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

/* ボタン */
.btn-group {
    display: flex;
    gap: 15px;
    margin-top: 30px;
}

.btn {
    padding: 12px 25px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    transition: 0.3s;
    border: 2px solid transparent;
}

.btn-pink {
    background: var(--neon-pink);
    color: white;
    box-shadow: 0 0 15px rgba(255, 20, 147, 0.3);
}

.btn-blue {
    border-color: var(--neon-blue);
    color: var(--neon-blue);
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 20px rgba(255, 255, 255, 0.1);
}

/* 特徴セクション */
section {
    padding: 100px 20px;
    max-width: 1000px;
    margin: 0 auto;
}

h2 {
    text-align: center;
    font-size: 1.8rem;
    margin-bottom: 60px;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.card {
    background: var(--card-bg);
    padding: 35px;
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: 0.3s;
}

.card:hover {
    border-color: var(--neon-pink);
    background: rgba(255, 255, 255, 0.02);
}

.card h3 {
    color: var(--neon-blue);
    margin-bottom: 10px;
}

.card p {
    color: var(--sub-text);
    font-size: 0.9rem;
}

/* フッター */
footer {
    text-align: center;
    padding: 60px 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-links {
    margin-bottom: 25px;
}

.footer-links a {
    color: var(--sub-text);
    text-decoration: none;
    margin: 0 15px;
    font-size: 0.85rem;
}

.disclaimer {
    margin-top: 20px;
    font-size: 0.75rem;
    color: #666;
}

/* モバイル対応 */
@media (max-width: 900px) {
    .hero-container {
        flex-direction: column;
        text-align: center;
    }
    .hero-content {
        text-align: center;
    }
    .btn-group {
        justify-content: center;
    }
    .logo {
        font-size: 2.8rem;
    }
}