/* SUP School - 夏らしく爽やかなデザイン */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    background-color: #ffffff;
    color: #333;
    line-height: 1.6;
}

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

/* ヘッダー */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 15px 0;
    box-shadow: 0 2px 20px rgba(0, 150, 255, 0.1);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 28px;
    font-weight: 700;
    color: #0099FF;
}

.btn {
    background: linear-gradient(135deg, #0099FF, #00CCFF);
    color: white;
    padding: 12px 24px;
    border: none;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 150, 255, 0.3);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 150, 255, 0.4);
}

/* ヒーローセクション */
.hero {
    background: #ffffff;
    min-height: 90vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: 80px 0 40px;
}


.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
}

.hero-title {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 20px;
    color: #0066CC;
    text-shadow: 0 2px 4px rgba(255, 255, 255, 0.8);
}

.hero-subtitle {
    font-size: 20px;
    color: #0080CC;
    margin-bottom: 30px;
}

.hero-notice {
    background: rgba(0, 153, 255, 0.1);
    color: #0066CC;
    padding: 12px 24px;
    border-radius: 25px;
    display: inline-block;
    margin-bottom: 30px;
    font-weight: 500;
    box-shadow: 0 2px 15px rgba(0, 153, 255, 0.2);
    border: 2px solid rgba(0, 153, 255, 0.3);
}

.hero-highlights {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin: 40px 0;
    flex-wrap: wrap;
}

.highlight-item {
    background: rgba(255, 255, 255, 0.9);
    padding: 20px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 150, 255, 0.1);
    min-width: 150px;
}

.highlight-label {
    display: block;
    font-size: 14px;
    color: #666;
    margin-bottom: 5px;
}

.highlight-value {
    display: block;
    font-size: 24px;
    font-weight: 700;
    color: #0099FF;
}

/* セクション共通 */
section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 50px;
    color: #0066CC;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: #00CCFF;
    border-radius: 2px;
}

/* 特徴セクション */
.features {
    background: #ffffff;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    justify-content: center;
}

.feature-card {
    background: white;
    padding: 30px 20px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 150, 255, 0.1);
    transition: all 0.3s ease;
    border: 2px solid rgba(0, 204, 255, 0.1);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 150, 255, 0.15);
    border-color: rgba(0, 204, 255, 0.3);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-title {
    font-size: 20px;
    font-weight: 600;
    color: #0066CC;
    margin-bottom: 15px;
}

.feature-description {
    color: #666;
    line-height: 1.6;
}

/* プランセクション */
.plans-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    justify-content: center;
}

.plan-card {
    background: white;
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 4px 20px rgba(0, 150, 255, 0.1);
    border: 2px solid rgba(0, 204, 255, 0.1);
    transition: all 0.3s ease;
}

.plan-card:hover {
    border-color: rgba(0, 204, 255, 0.4);
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0, 150, 255, 0.15);
}

.plan-name {
    font-size: 24px;
    font-weight: 700;
    color: #0066CC;
    margin-bottom: 10px;
}

.plan-subtitle {
    color: #666;
    margin-bottom: 20px;
}

.plan-price {
    font-size: 32px;
    font-weight: 800;
    color: #FF6B35;
    margin: 20px 0;
}

.plan-description {
    color: #555;
    line-height: 1.6;
    margin-bottom: 20px;
}

/* インストラクターセクション */
.instructors {
    background: #ffffff;
}

.single-instructor-card {
    background: white;
    border-radius: 25px;
    padding: 40px;
    max-width: 800px;
    margin: 0 auto;
    box-shadow: 0 10px 40px rgba(0, 150, 255, 0.1);
    border: 3px solid #E3F2FD;
}

.instructor-main {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 40px;
    margin-bottom: 30px;
    align-items: start;
}

.instructor-image {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid #00CCFF;
    box-shadow: 0 5px 20px rgba(0, 150, 255, 0.2);
}

.instructor-placeholder {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    background: #ffffff;
    border: 3px dashed #00CCFF;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0099FF;
    font-size: 16px;
}

.instructor-name {
    font-size: 28px;
    font-weight: 700;
    color: #0066CC;
    margin-bottom: 10px;
}

.instructor-role {
    color: #0099FF;
    font-weight: 600;
    font-size: 18px;
    margin-bottom: 10px;
}

.instructor-title {
    color: #00AA88;
    font-weight: 500;
    margin-bottom: 10px;
}

.instructor-certification {
    background: #FF6B35;
    color: white;
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 14px;
    display: inline-block;
    margin-bottom: 10px;
}

.instructor-qualification {
    background: #ffffff;
    padding: 15px 20px;
    border-radius: 10px;
    color: #555;
    border-left: 4px solid #00CCFF;
}

.instructor-profile {
    color: #555;
    line-height: 1.7;
    margin-bottom: 25px;
    font-size: 16px;
}

.instructor-message {
    background: linear-gradient(135deg, #00CCFF, #0099FF);
    color: white;
    padding: 25px;
    border-radius: 15px;
    margin-bottom: 25px;
}

.instructor-message h4 {
    margin-bottom: 10px;
    font-size: 18px;
}

/* FAQセクション */
.faq-item {
    background: white;
    margin-bottom: 15px;
    border-radius: 15px;
    box-shadow: 0 3px 15px rgba(0, 150, 255, 0.08);
    border: 1px solid #E3F2FD;
}

.faq-question {
    width: 100%;
    background: none;
    border: none;
    padding: 20px;
    text-align: left;
    font-size: 16px;
    font-weight: 600;
    color: #0066CC;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.3s ease;
}

.faq-question:hover {
    background: rgba(0, 102, 204, 0.05);
}

.faq-question::after {
    content: '+';
    font-size: 20px;
    font-weight: bold;
    color: #00CCFF;
    transition: transform 0.3s ease;
}

.faq-item.active .faq-question::after {
    content: '−';
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 20px 20px;
    color: #555;
    line-height: 1.6;
    display: none;
}

.faq-item.active .faq-answer {
    display: block;
}

/* フッター */
.footer {
    background: #0066CC;
    color: white;
    padding: 40px 0 20px;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.8);
}

/* スクロールトップボタン */
.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: #00CCFF;
    color: white;
    border: none;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    font-size: 20px;
    cursor: pointer;
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 1000;
}

.scroll-to-top.show {
    opacity: 1;
}

.scroll-to-top:hover {
    background: #0099FF;
    transform: translateY(-3px);
}

/* レスポンシブデザイン */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        min-height: 80vh;
        padding: 60px 0 30px;
    }
    
    .hero-title {
        font-size: 28px;
        line-height: 1.3;
    }
    
    .hero-subtitle {
        font-size: 16px;
        margin-bottom: 25px;
    }
    
    .hero-highlights {
        flex-direction: column;
        align-items: center;
        gap: 15px;
        margin: 25px 0;
    }
    
    .highlight-item {
        width: 100%;
        max-width: 300px;
        padding: 15px;
    }
    
    .instructor-main {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 25px;
    }
    
    .instructor-image,
    .instructor-placeholder {
        width: 150px;
        height: 150px;
        margin: 0 auto;
    }
    
    .single-instructor-card {
        padding: 25px 15px;
        margin: 0 5px;
    }
    
    .section-title {
        font-size: 24px;
        margin-bottom: 25px;
    }
    
    section {
        padding: 50px 0;
    }
    
    .plans-grid,
    .features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .feature-card,
    .plan-card {
        padding: 20px 15px;
    }
    
    .plan-name {
        font-size: 20px;
    }
    
    .plan-price {
        font-size: 28px;
    }
}

/* アニメーション */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

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