:root {
    --bg-color: #050505;
    --text-color: #e0e0e0;
    --accent-color: #00f3ff;
    /* Cyan Neon */
    --accent-secondary: #bc13fe;
    /* Purple Neon */
    --card-bg: rgba(255, 255, 255, 0.03);
    --card-border: rgba(255, 255, 255, 0.1);
    --font-heading: 'Orbitron', sans-serif;
    --font-body: 'Inter', sans-serif;
    --transition-speed: 0.3s;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-body);
    overflow-x: hidden;
    line-height: 1.6;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    color: #fff;
    text-transform: uppercase;
    letter-spacing: 2px;
}

a {
    color: var(--accent-color);
    text-decoration: none;
    transition: var(--transition-speed);
}

a:hover {
    color: var(--accent-secondary);
    text-shadow: 0 0 10px var(--accent-secondary);
}

/* Layout Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 100px 0;
    position: relative;
    z-index: 1;
}

/* Header / Hero */
.header {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(0, 243, 255, 0.1) 0%, transparent 70%);
    z-index: -1;
}

.animated-title {
    font-size: 4rem;
    margin-bottom: 1rem;
    text-shadow: 0 0 20px rgba(0, 243, 255, 0.5);
    animation: glow 3s infinite alternate;
}

.subtitle {
    font-size: 1.5rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 2rem;
}

/* Artist Section */
.artist-intro {
    display: flex;
    align-items: center;
    gap: 50px;
    flex-wrap: wrap;
}

.music-artist-intro {
    /* トップページのプロフィールと区別するためのスタイル */
    flex-direction: row; /* デフォルトの挙動を明示 */
}

.music-artist-intro .artist-image {
    border-radius: 15px; /* 円形ではなく、角丸の四角形に */
    filter: none; /* グレースケールを解除してカラー表示に */
    aspect-ratio: 1 / 1; /* 縦横比を1:1（正方形）に */
    object-fit: cover; /* 画像がコンテナに合わせてトリミングされる */
}
.music-artist-intro .artist-image:hover {
    filter: none; /* ホバー時もカラーを維持 */
}

.artist-image-container {
    flex: 1;
    min-width: 300px;
    position: relative;
    text-align: center;
}

.artist-image {
    width: 100%;
    max-width: 250px;
    /* Resize profile image */
    border-radius: 50%;
    /* Circular */
    filter: grayscale(100%);
    transition: filter 0.5s, transform 0.5s;
    background: #000;
    padding: 0;
    border: 2px solid var(--accent-color);
    box-shadow: 0 0 20px rgba(0, 243, 255, 0.2);
}

.artist-image:hover {
    filter: grayscale(0%);
    transform: scale(1.05);
    box-shadow: 0 0 40px rgba(0, 243, 255, 0.5);
}

.artist-description {
    flex: 1;
    min-width: 300px;
}

.tech-stack-box {
    margin-top: 20px;
    padding: 20px;
    border: 1px solid var(--accent-color);
    border-radius: 10px;
    background: rgba(0, 243, 255, 0.05);
}

.tech-stack-box p {
    font-size: 0.9rem;
    margin: 0;
}

/* Footer */
.footer {
    background: #000;
    padding: 50px 0;
    text-align: center;
    border-top: 1px solid var(--card-border);
}

.social-links {
    margin-bottom: 20px;
}

.social-links a {
    font-size: 1.5rem;
    margin: 0 15px;
    color: #fff;
}

.social-links a:hover {
    color: var(--accent-color);
}

/* Animations */
@keyframes glow {
    from {
        text-shadow: 0 0 10px rgba(0, 243, 255, 0.5);
    }

    to {
        text-shadow: 0 0 30px rgba(0, 243, 255, 1), 0 0 10px rgba(255, 255, 255, 0.5);
    }
}

/* Fade In Animation */
.fade-in-section {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in-section.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 768px) {
    .animated-title {
        font-size: 2.5rem;
    }

    .artist-intro {
        flex-direction: column;
    }
}