/* リセット & ベーススタイル */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    line-height: 1.8;
    color: #333;
    background-color: #fff;
    overflow-x: hidden;
}

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

/* フローティングボタン */
.floating-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    padding: 18px 35px;
    background: linear-gradient(135deg, #FF8C00 0%, #FFB84D 100%);
    border-radius: 50px;
    color: white;
    font-weight: 700;
    font-size: 1.3rem;
    text-decoration: none;
    box-shadow: 0 8px 25px rgba(255, 140, 0, 0.5);
    z-index: 9998;
    transition: all 0.3s ease;
    animation: pulse 2s infinite;
    white-space: nowrap;
}

.floating-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 12px 35px rgba(255, 140, 0, 0.6);
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 8px 25px rgba(255, 140, 0, 0.5);
    }
    50% {
        box-shadow: 0 8px 35px rgba(255, 140, 0, 0.8), 0 0 0 10px rgba(255, 140, 0, 0.2);
    }
}

/* ヘッダー */
.hero {
    position: relative;
    width: 100%;
    min-height: 500px;
    overflow: hidden;
}

.hero-image {
    position: relative;
    width: 100%;
    min-height: 500px;
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 140, 0, 0.85) 0%, rgba(255, 180, 50, 0.85) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.hero-content {
    text-align: center;
    color: white;
    max-width: 900px;
}

.hero-title {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 900;
    line-height: 1.4;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
    margin-bottom: 15px;
}

.channel-name {
    font-size: clamp(2rem, 5vw, 3.5rem);
    display: inline-block;
    margin: 10px 0;
    font-weight: 900;
}

.hero-subtitle {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    font-weight: 700;
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.3);
    margin-top: 10px;
}

/* イベント基本情報 */
.event-info {
    background: linear-gradient(135deg, #FFF5E6 0%, #FFE8CC 100%);
    padding: 60px 20px;
}

.info-box {
    background: white;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(255, 140, 0, 0.2);
    padding: 40px;
    max-width: 900px;
    margin: 0 auto;
}

.info-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 2px solid #FFE8CC;
}

.info-item:last-of-type {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.info-icon {
    font-size: 3rem;
    margin-right: 20px;
    flex-shrink: 0;
}

.info-text h3 {
    font-size: 1.3rem;
    color: #FF8C00;
    margin-bottom: 8px;
    font-weight: 700;
}

.info-text p {
    font-size: 1.1rem;
    color: #555;
    margin: 5px 0;
}

.info-text strong {
    color: #FF8C00;
    font-size: 1.2rem;
}

.cta-button {
    text-align: center;
    margin-top: 40px;
}

.btn-primary {
    display: inline-block;
    background: linear-gradient(135deg, #FF8C00 0%, #FFB84D 100%);
    color: white;
    padding: 20px 50px;
    font-size: 1.4rem;
    font-weight: 700;
    text-decoration: none;
    border-radius: 50px;
    box-shadow: 0 8px 25px rgba(255, 140, 0, 0.4);
    transition: all 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(255, 140, 0, 0.5);
}

/* イベント説明 */
.event-description {
    padding: 60px 20px;
    background: white;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    color: #FF8C00;
    margin-bottom: 40px;
    font-weight: 900;
}

.description-text {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.description-text p {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: #555;
    line-height: 2;
}

.description-text strong {
    color: #FF8C00;
    font-size: 1.3rem;
}

/* 出演者紹介 */
.performers {
    padding: 60px 20px;
    background: linear-gradient(135deg, #E8F4FF 0%, #D4E9FF 100%);
}

.performers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.performer-card {
    background: white;
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 8px 25px rgba(0, 100, 200, 0.15);
    transition: all 0.3s ease;
}

.performer-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 35px rgba(0, 100, 200, 0.25);
}

.performer-image {
    width: 200px;
    height: 200px;
    margin: 0 auto 20px;
    border-radius: 50%;
    overflow: hidden;
    border: 5px solid #FFB84D;
    box-shadow: 0 5px 20px rgba(255, 140, 0, 0.3);
}

.performer-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.performer-card h3 {
    font-size: 1.5rem;
    color: #0066CC;
    margin-bottom: 15px;
    font-weight: 700;
}

.performer-card p {
    font-size: 1rem;
    color: #555;
    margin-bottom: 10px;
    line-height: 1.6;
}

.performer-note {
    color: #FF8C00;
    font-weight: 600;
    margin-top: 10px;
}

.performer-highlight {
    color: #CC0066;
    font-weight: 700;
    margin-top: 10px;
}

/* プログラム */
.program {
    padding: 60px 20px;
    background: white;
}

.program-item {
    background: linear-gradient(135deg, #FFF5E6 0%, #FFE8CC 50%, #FFF5E6 100%);
    border-radius: 15px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: 0 5px 20px rgba(255, 140, 0, 0.15);
    transition: all 0.3s ease;
}

.program-item:hover {
    transform: translateX(10px);
    box-shadow: 0 8px 30px rgba(255, 140, 0, 0.25);
}

.program-header {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.program-number {
    background: linear-gradient(135deg, #FF8C00 0%, #FFB84D 100%);
    color: white;
    padding: 8px 20px;
    border-radius: 25px;
    font-weight: 700;
    font-size: 1.1rem;
    margin-right: 15px;
    margin-bottom: 10px;
}

.program-header h3 {
    font-size: 1.6rem;
    color: #FF8C00;
    font-weight: 700;
    flex: 1;
    min-width: 200px;
}

.program-content {
    padding-left: 20px;
}

.program-intro {
    font-size: 1.1rem;
    color: #555;
    font-weight: 600;
    margin-bottom: 15px;
}

.program-content p {
    font-size: 1.05rem;
    color: #555;
    margin-bottom: 15px;
    line-height: 1.8;
}

.program-list {
    list-style: none;
    padding-left: 0;
}

.program-list li {
    font-size: 1.05rem;
    color: #555;
    padding: 8px 0;
    padding-left: 30px;
    position: relative;
}

.program-list li::before {
    content: "🎵";
    position: absolute;
    left: 0;
}

/* 会場アクセス */
.access {
    padding: 60px 20px;
    background: linear-gradient(135deg, #E8F4FF 0%, #D4E9FF 100%);
}

.access-content {
    max-width: 900px;
    margin: 0 auto;
    background: white;
    border-radius: 15px;
    padding: 40px;
    box-shadow: 0 8px 25px rgba(0, 100, 200, 0.15);
}

.access-content h3 {
    font-size: 1.8rem;
    color: #0066CC;
    text-align: center;
    margin-bottom: 20px;
    font-weight: 700;
}

.access-note {
    text-align: center;
    font-size: 1.1rem;
    color: #555;
    margin-bottom: 30px;
    line-height: 1.8;
}

.map-container {
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.access-link {
    text-align: center;
}

.btn-secondary {
    display: inline-block;
    background: linear-gradient(135deg, #0066CC 0%, #0099FF 100%);
    color: white;
    padding: 15px 40px;
    font-size: 1.2rem;
    font-weight: 700;
    text-decoration: none;
    border-radius: 50px;
    box-shadow: 0 5px 20px rgba(0, 100, 200, 0.3);
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 100, 200, 0.4);
}

/* 注意事項 */
.notice {
    padding: 60px 20px;
    background: white;
}

.notice-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.notice-item {
    background: linear-gradient(135deg, #FFF5E6 0%, #FFE8CC 100%);
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(255, 140, 0, 0.1);
}

.notice-item h3 {
    font-size: 1.4rem;
    color: #FF8C00;
    margin-bottom: 15px;
    font-weight: 700;
}

.notice-item p {
    font-size: 1.05rem;
    color: #555;
    line-height: 1.8;
}

.notice-message {
    text-align: center;
    font-size: 1.3rem;
    color: #FF8C00;
    font-weight: 700;
    margin-top: 40px;
    line-height: 2;
}

/* お問い合わせ・SNS */
.contact {
    padding: 60px 20px;
    background: linear-gradient(135deg, #FFE8CC 0%, #FFF5E6 100%);
}

.contact-content {
    max-width: 900px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.contact-item {
    background: white;
    border-radius: 15px;
    padding: 40px;
    text-align: center;
    box-shadow: 0 8px 25px rgba(255, 140, 0, 0.15);
}

.contact-item h3 {
    font-size: 1.6rem;
    color: #FF8C00;
    margin-bottom: 15px;
    font-weight: 700;
}

.contact-item p {
    font-size: 1.05rem;
    color: #555;
    margin-bottom: 10px;
}

.contact-description {
    margin-top: 15px;
    font-weight: 600;
    color: #FF8C00;
}

.contact-link {
    display: inline-block;
    color: #0066CC;
    font-size: 1.2rem;
    font-weight: 700;
    text-decoration: none;
    margin-top: 10px;
    padding: 10px 20px;
    background: #E8F4FF;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.contact-link:hover {
    background: #D4E9FF;
    transform: scale(1.05);
}

.btn-youtube {
    display: inline-block;
    background: linear-gradient(135deg, #FF0000 0%, #CC0000 100%);
    color: white;
    padding: 15px 40px;
    font-size: 1.2rem;
    font-weight: 700;
    text-decoration: none;
    border-radius: 50px;
    margin-top: 20px;
    box-shadow: 0 5px 20px rgba(255, 0, 0, 0.3);
    transition: all 0.3s ease;
}

.btn-youtube:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 0, 0, 0.4);
}

/* フッター */
.footer {
    background: #333;
    color: white;
    padding: 30px 20px;
    text-align: center;
}

.footer p {
    font-size: 1rem;
    margin: 0;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .floating-btn {
        padding: 15px 28px;
        font-size: 1.15rem;
        bottom: 20px;
        right: 20px;
    }
    
    .hero {
        min-height: 400px;
    }
    
    .hero-image {
        min-height: 400px;
    }
    
    .info-box {
        padding: 30px 20px;
    }
    
    .info-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .info-icon {
        margin-right: 0;
        margin-bottom: 15px;
    }
    
    .performers-grid {
        grid-template-columns: 1fr;
    }
    
    .program-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .program-number {
        margin-bottom: 15px;
    }
    
    .notice-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .access-content {
        padding: 30px 20px;
    }
}

@media (max-width: 480px) {
    .floating-btn {
        padding: 14px 24px;
        font-size: 1.05rem;
        bottom: 15px;
        right: 15px;
    }
    
    .hero {
        min-height: 350px;
    }
    
    .hero-image {
        min-height: 350px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .btn-primary {
        padding: 18px 40px;
        font-size: 1.2rem;
    }
    
    .performer-card {
        padding: 25px 20px;
    }
    
    .program-item {
        padding: 25px 20px;
    }
}