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

:root {
    --primary-color: #c9a961;
    --secondary-color: #a88f5f;
    --accent-color: #d4a574;
    --text-dark: #333333;
    --text-light: #666666;
    --bg-light: #fafaf8;
    --white: #ffffff;
    --border-light: #e8e8e8;
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    color: var(--text-dark);
    line-height: 1.7;
    overflow-x: hidden;
}

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

@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }
}

/* ===== ナビゲーション ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: var(--transition);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.nav-content {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    padding: 1.2rem 0;
}

.logo {
    font-family: 'Noto Serif JP', serif;
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--text-dark);
    text-decoration: none;
    letter-spacing: 3px;
    display: flex;
    flex-direction: column;
    line-height: 1.2;
    align-items: center; /* 中央揃え */
    text-align: center;  /* テキスト中央 */
}

@media (max-width: 768px) {
    .logo {
        font-size: 1.2rem;
        letter-spacing: 2px;
    }
}

.logo-sub {
    font-size: 0.65rem;
    font-weight: 300;
    letter-spacing: 1px;
    margin-top: 2px;
    color: rgba(255, 255, 255, 0.9);
}

/* ロゴを中央、メニューは右、ハンバーガーは左に配置 */
.logo { grid-column: 2; justify-self: center; }
.mobile-menu-btn { grid-column: 3; justify-self: end; }
.nav-menu { grid-column: 1; justify-self: start; }

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 400;
    transition: var(--transition);
    font-size: 0.9rem;
    letter-spacing: 0.5px;
}

.nav-menu a:hover {
    color: var(--primary-color);
    opacity: 0.7;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--white) !important;
    padding: 0.7rem 1.5rem;
    border-radius: 30px;
    transition: var(--transition);
}

.btn-primary:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    transition: var(--transition);
}

/* ===== ヒーローセクション ===== */
.hero {
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.1)), url('RENA２.png');
    background-size: cover;
    background-position: center;
    overflow: hidden;
}

@media (max-width: 768px) {
    .hero {
        min-height: 500px;
        height: 80vh;
    }
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23ffffff" fill-opacity="0.05" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,154.7C960,171,1056,181,1152,165.3C1248,149,1344,107,1392,85.3L1440,64L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
    background-position: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(0, 0, 0, 0.4) 0%, rgba(0, 0, 0, 0.2) 70%, transparent 100%);
}

.hero-content {
    position: relative;
    text-align: center;
    color: var(--white);
    z-index: 2;
    max-width: 900px;
    padding: 0 20px;
}

.hero-title {
    font-family: 'Noto Serif JP', serif;
    font-size: clamp(1.8rem, 5vw, 3.5rem);
    font-weight: 400;
    margin-bottom: 0.5rem;
    line-height: 1.3;
    color: var(--white);
    letter-spacing: 2px;
}

@media (max-width: 768px) {
    .hero-title {
        font-size: clamp(1.5rem, 8vw, 2.2rem);
        letter-spacing: 1px;
    }
}

.hero-subtitle {
    font-family: 'Noto Sans JP', sans-serif;
    font-size: clamp(0.9rem, 2vw, 1.1rem);
    margin-bottom: 0;
    letter-spacing: 2px;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.9);
}

@media (max-width: 768px) {
    .hero-subtitle {
        font-size: clamp(0.85rem, 4vw, 1rem);
        letter-spacing: 1px;
    }
}

.hero-image {
    margin-top: 3rem;
    max-width: 600px;
    width: 100%;
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.hero-description {
    font-size: clamp(1rem, 2vw, 1.2rem);
    margin-bottom: 2.5rem;
    opacity: 0.95;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-hero-primary {
    padding: 1.2rem 3rem;
    border-radius: 0;
    text-decoration: none;
    font-weight: 400;
    transition: var(--transition);
    font-size: 1rem;
    background: var(--primary-color);
    color: var(--white);
    letter-spacing: 1px;
    border: 1px solid var(--primary-color);
}

.btn-hero-primary:hover {
    background: transparent;
    color: var(--primary-color);
    transform: translateY(-2px);
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    position: relative;
}

.scroll-indicator span::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 2px;
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0%, 100% { opacity: 0; transform: translateX(-50%) translateY(0); }
    50% { opacity: 1; transform: translateX(-50%) translateY(10px); }
}

/* アニメーション */
.animate-fade-in {
    animation: fadeIn 1s ease-out;
}

.animate-fade-in-delay {
    animation: fadeIn 1s ease-out 0.3s both;
}

.animate-fade-in-delay-2 {
    animation: fadeIn 1s ease-out 0.6s both;
}

.animate-fade-in-delay-3 {
    animation: fadeIn 1s ease-out 0.9s both;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== セクション共通スタイル ===== */
section {
    padding: 100px 0;
}

@media (max-width: 768px) {
    section {
        padding: 60px 0;
    }
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

@media (max-width: 768px) {
    .section-header {
        margin-bottom: 40px;
    }
}

.section-tag {
    display: inline-block;
    color: var(--primary-color);
    font-size: 0.75rem;
    font-weight: 400;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 1rem;
    white-space: nowrap;
}

@media (max-width: 768px) {
    .section-tag {
        font-size: 0.7rem;
        letter-spacing: 1.5px;
    }
}

@media (max-width: 480px) {
    .section-tag {
        font-size: 0.65rem;
        letter-spacing: 1px;
    }
}

.section-title {
    font-family: 'Noto Serif JP', serif;
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    color: var(--text-dark);
    margin-bottom: 1.5rem;
    font-weight: 400;
    letter-spacing: 1px;
}

@media (max-width: 768px) {
    .section-title {
        font-size: clamp(1.5rem, 6vw, 2rem);
    }
}

.section-description {
    color: var(--text-light);
    font-size: 1rem;
    max-width: 600px;
    margin: 0 auto;
    font-weight: 300;
    line-height: 1.8;
}

/* ===== About セクション ===== */
.about {
    background: var(--bg-light);
    padding-top: 120px;
    position: relative;
    z-index: 2;
}

@media (max-width: 768px) {
    .about {
        padding-top: 100px;
    }
}

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

@media (max-width: 768px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

.about-image img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    object-fit: cover;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.about-text h3 {
    font-family: 'Noto Serif JP', serif;
    font-size: 1.6rem;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
    font-weight: 400;
    letter-spacing: 1px;
}

@media (max-width: 768px) {
    .about-text h3 {
        font-size: 1.3rem;
    }
}

.about-text p.about-description-text {
    color: var(--text-dark);
    font-weight: 400;
} 

.about-text p {
    margin-bottom: 1.5rem;
    color: rgba(255, 255, 255, 0.9);
}

.about-features {
    margin-top: 2rem;
}

.feature-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

@media (max-width: 768px) {
    .feature-item {
        gap: 0.8rem;
        margin-bottom: 1.2rem;
    }
}

.feature-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
}

@media (max-width: 768px) {
    .feature-icon {
        width: 40px;
        height: 40px;
    }
    
    .feature-icon svg {
        width: 18px;
        height: 18px;
    }
}

.feature-item h4 {
    margin-bottom: 0.3rem;
    color: var(--primary-color);
}

@media (max-width: 768px) {
    .feature-item h4 {
        font-size: 0.95rem;
    }
}

.feature-item p.feature-description {
    color: var(--text-dark);
    font-weight: 400;
}

.feature-item p {
    font-size: 0.95rem;
    margin: 0;
    color: var(--text-dark);
}

@media (max-width: 768px) {
    .feature-item p {
        font-size: 0.85rem;
    }
}

/* ===== Classes セクション ===== */
.classes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

@media (max-width: 768px) {
    .classes-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

.class-card {
    background: var(--white);
    padding: 2.5rem 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    text-align: center;
}

@media (max-width: 768px) {
    .class-card {
        padding: 2rem 1.5rem;
    }
}

.class-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

.class-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: var(--bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
}

.class-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

@media (max-width: 768px) {
    .class-card h3 {
        font-size: 1.3rem;
    }
}

.class-level {
    color: var(--accent-color);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.class-description {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.class-details {
    list-style: none;
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.class-details li {
    background: var(--bg-light);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--text-dark);
}

/* ===== Instructors セクション ===== */
.instructors {
    background: var(--bg-light);
}

@media (max-width: 768px) {
    .instructors {
        padding: 50px 0;
    }
}

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

@media (max-width: 768px) {
    .instructors-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

.instructor-card {
    background: var(--white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
}

.instructor-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

.instructor-image .instructor-photo {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    margin: 2rem auto 0;
    display: block;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.instructor-image .image-placeholder {
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
    width: 120px;
    height: 120px;
    margin: 2rem auto 0;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
}

.instructor-image .image-placeholder svg {
    width: 50px;
    height: 50px;
}

.instructor-card h3 {
    padding: 1.5rem 2rem 0.5rem;
    font-size: 1.5rem;
    color: var(--primary-color);
}

.instructor-title {
    padding: 0 2rem;
    color: var(--accent-color);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.instructor-bio {
    padding: 0 2rem 2rem;
    color: var(--text-dark);
    font-size: 0.95rem;
    font-weight: 400;
    margin: 0;
    line-height: 1.6;
}

/* ===== Pricing セクション ===== */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

@media (max-width: 768px) {
    .pricing-grid {
        display: flex;
        overflow-x: auto;
        gap: 15px;
        margin-bottom: 30px;
        padding-bottom: 10px;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
    }

    .pricing-grid::-webkit-scrollbar {
        height: 8px;
    }

    .pricing-grid::-webkit-scrollbar-track {
        background: var(--bg-light);
        border-radius: 10px;
    }

    .pricing-grid::-webkit-scrollbar-thumb {
        background: var(--primary-color);
        border-radius: 10px;
    }

    .pricing-card {
        padding: 2rem 1.5rem;
        min-width: 280px;
        max-width: 280px;
        flex-shrink: 0;
        scroll-snap-align: center;
    }
}

.pricing-card {
    background: var(--white);
    padding: 3rem 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    text-align: center;
    position: relative;
}

@media (max-width: 768px) {
    .pricing-card {
        padding: 2rem 1.5rem;
        min-width: 280px;
        flex-shrink: 0;
        scroll-snap-align: center;
    }
}

@media (max-width: 480px) {
    .pricing-card {
        padding: 1.8rem 1.3rem;
        min-width: 260px;
    }
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

.pricing-card.featured {
    border: 3px solid var(--primary-color);
}

@media (max-width: 768px) {
    .pricing-card.featured {
        border: 2px solid var(--primary-color);
    }
}

.featured-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--accent-color);
    color: var(--white);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.pricing-card h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

@media (max-width: 768px) {
    .pricing-card h3 {
        font-size: 1.4rem;
    }
}

@media (max-width: 480px) {
    .pricing-card h3 {
        font-size: 1.3rem;
    }
}

.price {
    margin-bottom: 2rem;
}

@media (max-width: 768px) {
    .price {
        margin-bottom: 1rem;
    }
}

@media (max-width: 480px) {
    .price {
        margin-bottom: 0.8rem;
    }
}

.price-amount {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
}

@media (max-width: 768px) {
    .price-amount {
        font-size: 2.2rem;
    }
}

@media (max-width: 480px) {
    .price-amount {
        font-size: 2rem;
    }
}

.price-period {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
}

.pricing-features {
    list-style: none;
    margin-bottom: 2rem;
    text-align: left;
}

@media (max-width: 768px) {
    .pricing-features {
        margin-bottom: 1.2rem;
    }
}

@media (max-width: 480px) {
    .pricing-features {
        margin-bottom: 1rem;
    }
}

.pricing-features li {
    padding: 0.8rem 0;
    border-bottom: 1px solid var(--bg-light);
    color: var(--text-dark);
    font-size: 0.95rem;
    font-weight: 400;
}

@media (max-width: 768px) {
    .pricing-features li {
        font-size: 0.85rem;
        padding: 0.6rem 0;
    }
}

@media (max-width: 480px) {
    .pricing-features li {
        font-size: 0.8rem;
        padding: 0.5rem 0;
    }
}

.pricing-features li:last-child {
    border-bottom: none;
}

.btn-pricing {
    display: inline-block;
    background: var(--primary-color);
    color: var(--white);
    padding: 1rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

@media (max-width: 768px) {
    .btn-pricing {
        padding: 0.8rem 1.8rem;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .btn-pricing {
        padding: 0.75rem 1.5rem;
        font-size: 0.85rem;
    }
}

.btn-pricing:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
}

.pricing-note {
    text-align: center;
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.9rem;
}

.pricing-note p {
    margin: 0.5rem 0;
}

/* ===== Contact セクション ===== */
.contact {
    background: var(--bg-light);
}

@media (max-width: 768px) {
    .contact {
        padding: 50px 0;
    }
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
}

@media (max-width: 768px) {
    .contact-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.info-item {
    display: flex;
    gap: 1.5rem;
}

.info-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
}

@media (max-width: 768px) {
    .info-icon {
        width: 40px;
        height: 40px;
    }
    
    .info-icon svg {
        width: 20px;
        height: 20px;
    }
}

.info-item h4 {
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

@media (max-width: 768px) {
    .info-item h4 {
        font-size: 1rem;
    }
}

.info-item p {
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.6;
}

@media (max-width: 768px) {
    .info-item p {
        font-size: 0.9rem;
    }
}

.contact-form {
    background: var(--white);
    padding: 3rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

@media (max-width: 768px) {
    .contact-form {
        padding: 2rem 1.5rem;
    }
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--white);
    font-weight: 500;
}

.required {
    color: #e74c3c;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 2px solid var(--bg-light);
    border-radius: 8px;
    font-family: 'Noto Sans JP', sans-serif;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.btn-submit {
    width: 100%;
    background: var(--primary-color);
    color: var(--white);
    padding: 1rem 2rem;
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-submit:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
}

/* ===== Footer ===== */
.footer {
    background: var(--primary-color);
    color: var(--white);
    padding: 60px 0 30px;
}

@media (max-width: 768px) {
    .footer {
        padding: 40px 0 20px;
    }
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
        margin-bottom: 30px;
        text-align: center;
    }
}

.footer-brand h3 {
    font-family: 'Playfair Display', serif;
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
    letter-spacing: 2px;
}

@media (max-width: 768px) {
    .footer-brand h3 {
        font-size: 1.5rem;
    }
}

.footer-tagline {
    margin-top: 1rem;
    opacity: 0.8;
    font-size: 0.9rem;
}

.footer-links h4,
.footer-contact h4,
.footer-contact .footer-line {
    margin-top: 1rem;
}

.footer-contact .footer-line h4 {
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.line-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    text-decoration: none;
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    font-weight: 600;
    transition: var(--transition);
    font-size: 0.9rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.line-button:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 255, 255, 0.2);
}

@media (max-width: 768px) {
    .line-button {
        justify-content: center;
        width: 100%;
        padding: 1rem;
        font-size: 1rem;
    }
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: var(--white);
    text-decoration: none;
    opacity: 0.8;
    transition: var(--transition);
}

.footer-links a:hover {
    opacity: 1;
}

.footer-contact p {
    opacity: 0.8;
    margin-bottom: 0.5rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

@media (max-width: 768px) {
    .social-links {
        justify-content: center;
    }
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--accent-color);
    transform: translateY(-3px);
}

@media (max-width: 768px) {
    .footer .footer-info .info-item {
        justify-content: center;
        text-align: center;
    }

    .footer .footer-info .info-item h4,
    .footer .footer-info .info-item p {
        text-align: center;
    }
}

.footer .footer-info .info-item h4 {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.footer .footer-info .info-item p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    font-size: 0.9rem;
    margin: 0;
}

.footer .footer-info .footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.7;
    width: 100%;
}
/* ===== レスポンシブデザイン ===== */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
    }

    .nav-content {
        grid-template-columns: 1fr auto 1fr;
        justify-items: end;
    }

    .logo { 
        grid-column: 2; 
        justify-self: center; 
    }
    
    .mobile-menu-btn { 
        grid-column: 3; 
        justify-self: end; 
    }

    .nav-menu {
        position: static;
        width: auto;
        height: auto;
        background: transparent;
        flex-direction: row;
        padding: 0;
        box-shadow: none;
        gap: 1rem;
        /* Hide the menu by default on mobile, it will be toggled by JS */
        display: none;
    }

    .nav-menu.active {
        /* When active, show the menu */
        display: flex;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: row; /* Change to row for horizontal layout */
        padding: 1rem;
        box-shadow: 0 5px 20px rgba(0,0,0,0.1);
        align-items: center;
        justify-content: center; /* Center the items */
    }
    
    .nav-menu li {
        width: auto;
    }
    
    .nav-menu a {
        display: block;
        padding: 0.8rem 0;
        font-size: 1rem;
    }
    
    .btn-primary {
        display: block;
        text-align: center;
        width: 100%;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn-hero-primary,
    .btn-hero-secondary {
        width: 100%;
        max-width: 300px;
        text-align: center;
    }
}

/* タブレット対応 */
@media (min-width: 769px) and (max-width: 1024px) {
    .container {
        padding: 0 30px;
    }
    
    .classes-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 小さいスマホ対応 */
@media (max-width: 480px) {
    .hero-content {
        padding: 0 16px;
    }
    
    .section-tag {
        font-size: 0.7rem;
    }
    
    .class-icon {
        width: 60px;
        height: 60px;
    }
    
    .class-icon svg {
        width: 30px;
        height: 30px;
    }
    
    .btn-pricing,
    .btn-submit {
        padding: 0.9rem 2rem;
        font-size: 1rem;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        font-size: 16px; /* iOSのズーム防止 */
    }
}