/* リセットとベース設定 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #6b8cce;
    --secondary-color: #a8c5e8;
    --accent-color: #ff6b9d;
    --dark-color: #1a1a2e;
    --light-color: #f8f9fa;
    --text-color: #333;
    --text-light: #666;
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    overflow-x: hidden;
}

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

/* ヘッダー */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: all 0.3s ease;
    padding: 20px 0;
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    padding: 15px 0;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.logo {
    font-family: 'Playfair Display', serif;
    font-size: 28px;
    font-weight: 700;
    color: var(--dark-color);
    letter-spacing: 2px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-menu a {
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-menu a:hover::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--dark-color);
    transition: all 0.3s ease;
    border-radius: 3px;
}

/* ヒーローセクション */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-1);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23ffffff" fill-opacity="0.1" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,133.3C672,139,768,181,864,181.3C960,181,1056,139,1152,128C1248,117,1344,139,1392,149.3L1440,160L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
    background-size: cover;
    opacity: 0.5;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: white;
    animation: fadeInUp 1s ease;
}

.hero-title {
    font-family: 'Playfair Display', serif;
    font-size: 80px;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: 5px;
    text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 24px;
    margin-bottom: 40px;
    font-weight: 300;
    letter-spacing: 2px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.btn {
    padding: 15px 40px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-primary {
    background: white;
    color: var(--primary-color);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background: white;
    color: var(--primary-color);
}

/* セクション共通 */
section {
    padding: 100px 0;
}

.section-title {
    font-family: 'Playfair Display', serif;
    font-size: 48px;
    text-align: center;
    margin-bottom: 60px;
    position: relative;
    color: var(--dark-color);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--gradient-1);
    border-radius: 2px;
}

/* プロフィールセクション */
.about {
    background: var(--light-color);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    align-items: center;
}

.profile-image-wrapper {
    display: flex;
    justify-content: center;
}

.profile-image {
    width: 350px;
    height: 350px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    position: relative;
    background: white;
}

.profile-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.profile-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-3);
    color: white;
    font-size: 18px;
    font-weight: 500;
}

.profile-text h3 {
    font-family: 'Playfair Display', serif;
    font-size: 36px;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.profile-role {
    font-size: 18px;
    color: var(--primary-color);
    margin-bottom: 30px;
    font-weight: 500;
}

.profile-description {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: 40px;
}

.profile-stats {
    display: flex;
    gap: 40px;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.stat-label {
    font-size: 14px;
    color: var(--text-light);
}

/* 音楽セクション */
.music {
    background: white;
}

.coming-soon-wrapper {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
    padding: 60px 20px;
}

.coming-soon-icon {
    font-size: 80px;
    margin-bottom: 30px;
    animation: float 3s ease-in-out infinite;
}

.coming-soon-title {
    font-family: 'Playfair Display', serif;
    font-size: 48px;
    color: var(--dark-color);
    margin-bottom: 20px;
    letter-spacing: 3px;
}

.coming-soon-text {
    font-size: 18px;
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: 50px;
}

.platform-icons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.platform-item {
    background: var(--light-color);
    padding: 20px;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.platform-item:hover {
    background: var(--gradient-1);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.platform-item:hover .platform-name {
    color: white;
}

.platform-name {
    font-size: 16px;
    font-weight: 500;
    color: var(--primary-color);
    transition: color 0.3s ease;
}

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

/* コンタクトセクション */
.contact {
    background: var(--light-color);
}

.contact-subtitle {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 40px;
    font-size: 16px;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 60px;
}

.social-link {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--light-color);
    border-radius: 50%;
    color: var(--primary-color);
    transition: all 0.3s ease;
}

.social-link svg {
    width: 24px;
    height: 24px;
}

.social-link:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-5px);
}

/* フッター */
.footer {
    background: var(--dark-color);
    color: white;
    text-align: center;
    padding: 30px 0;
}

/* アニメーション */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }

    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 40px 0;
        gap: 20px;
    }

    .nav-menu.active {
        left: 0;
    }

    .hero-title {
        font-size: 48px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 15px;
    }

    .section-title {
        font-size: 36px;
    }

    .about-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .profile-image {
        width: 280px;
        height: 280px;
    }

    .profile-stats {
        justify-content: center;
    }

    .platform-icons {
        grid-template-columns: 1fr;
    }

    .coming-soon-title {
        font-size: 36px;
    }

    section {
        padding: 60px 0;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 36px;
    }

    .profile-image {
        width: 250px;
        height: 250px;
    }

    .profile-stats {
        flex-direction: row;
        gap: 30px;
    }

    .stat-number {
        font-size: 24px;
    }
}