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

:root {
    --primary-green: #00C853;
    --primary-green-dark: #00A043;
    --primary-green-light: #4CAF50;
    --gradient-green: linear-gradient(135deg, #00C853 0%, #4CAF50 50%, #81C784 100%);
    --gradient-dark: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    --text-dark: #1a1a1a;
    --text-light: #ffffff;
    --text-gray: #cccccc;
    --text-gray-dark: #999999;
    --bg-light: #2a2a2a;
    --bg-white: #1e1e1e;
    --bg-card: #2a2a2a;
    --bg-darker: #151515;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    --shadow-hover: 0 8px 30px rgba(0, 200, 83, 0.4);
}

html {
    scroll-behavior: smooth;
}

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

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

/* ファーストビュー */
.first-view {
    height: 100vh;
    background: linear-gradient(135deg, #9C27B0 0%, #BA68C8 50%, #CE93D8 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.first-view-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.first-view-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.first-view-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(156, 39, 176, 0.7) 0%, rgba(186, 104, 200, 0.6) 50%, rgba(206, 147, 216, 0.5) 100%);
    z-index: 1;
}

.first-view::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
    z-index: 1;
}

.first-view-content {
    text-align: center;
    z-index: 3;
    position: relative;
    animation: fadeInUp 1s ease-out;
}

.catch-copy {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 900;
    color: var(--text-light);
    margin-bottom: 30px;
    line-height: 1.2;
    text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.2);
    letter-spacing: 0.05em;
}

.sub-copy {
    font-size: clamp(1rem, 2.5vw, 1.5rem);
    color: var(--text-light);
    margin-bottom: 50px;
    font-weight: 300;
    text-shadow: 1px 1px 5px rgba(0, 0, 0, 0.2);
    line-height: 1.8;
}

.cta-button {
    display: inline-block;
    padding: 18px 50px;
    background: var(--text-light);
    color: #000000;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    letter-spacing: 0.05em;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.3);
    background: #f0f0f0;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--text-light);
    z-index: 3;
    animation: bounce 2s infinite;
}

.scroll-indicator span {
    display: block;
    font-size: 0.9rem;
    margin-bottom: 10px;
    opacity: 0.8;
}

.scroll-line {
    width: 2px;
    height: 30px;
    background: var(--text-light);
    margin: 0 auto;
    opacity: 0.6;
}

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

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

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

.section-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 900;
    text-align: center;
    margin-bottom: 60px;
    color: var(--text-light);
    letter-spacing: 0.1em;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--gradient-green);
    margin: 20px auto 0;
    border-radius: 2px;
}

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

    .section-title::after {
        margin: 15px auto 0;
    }
}

@media (max-width: 480px) {
    .section-title {
        margin-bottom: 30px;
    }

    .section-title::after {
        margin: 10px auto 0;
        width: 50px;
    }
}

/* コンセプト紹介 */
.concept {
    background: var(--bg-white);
}

.concept-content {
    max-width: 900px;
    margin: 0 auto;
}

.concept-text {
    font-size: 1.1rem;
    line-height: 2;
    color: var(--text-gray);
    text-align: center;
    letter-spacing: 0.05em;
    margin-bottom: 60px;
}

@media (max-width: 768px) {
    .concept-text {
        font-size: 1rem;
        line-height: 1.8;
        margin-bottom: 40px;
    }
}

@media (max-width: 480px) {
    .concept-text {
        font-size: 0.95rem;
        line-height: 1.7;
        margin-bottom: 30px;
    }
}

.concept-video {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

.concept-video-player {
    width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: var(--shadow);
    background: var(--bg-darker);
}

@media (max-width: 768px) {
    .concept-video {
        padding: 0 10px;
    }

    .concept-video-player {
        border-radius: 15px;
    }
}

@media (max-width: 480px) {
    .concept-video-player {
        border-radius: 12px;
    }
}

/* 特徴紹介 */
.features {
    background: var(--bg-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 60px;
}

@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 18px;
    }
}

@media (max-width: 768px) {
    .features-grid {
        gap: 15px;
        margin-top: 40px;
    }
}

@media (max-width: 480px) {
    .features-grid {
        gap: 12px;
        margin-top: 30px;
    }
}

.feature-card {
    background: var(--bg-card);
    padding: 20px;
    border-radius: 16px;
    text-align: left;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    flex-direction: column;
}

@media (max-width: 768px) {
    .feature-card {
        padding: 18px;
        border-radius: 12px;
    }
}

@media (max-width: 480px) {
    .feature-card {
        padding: 15px;
        border-radius: 10px;
    }
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(156, 39, 176, 0.5);
    background: rgba(58, 58, 58, 0.8);
}

.feature-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

@media (max-width: 480px) {
    .feature-header {
        gap: 10px;
        margin-bottom: 10px;
    }
}

.feature-icon {
    font-size: 2rem;
    line-height: 1;
    flex-shrink: 0;
}

@media (max-width: 768px) {
    .feature-icon {
        font-size: 1.8rem;
    }
}

@media (max-width: 480px) {
    .feature-icon {
        font-size: 1.5rem;
    }
}

.feature-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin: 0;
    color: var(--text-light);
    line-height: 1.3;
}

@media (max-width: 768px) {
    .feature-title {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .feature-title {
        font-size: 0.9rem;
    }
}

.feature-text {
    font-size: 0.85rem;
    color: var(--text-gray);
    line-height: 1.6;
    margin: 0;
}

@media (max-width: 768px) {
    .feature-text {
        font-size: 0.8rem;
        line-height: 1.5;
    }
}

@media (max-width: 480px) {
    .feature-text {
        font-size: 0.75rem;
    }
}

/* 講師紹介 */
.instructor {
    background: var(--bg-white);
}

.instructor-content {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 40px;
    align-items: start;
    margin-top: 60px;
}

@media (max-width: 768px) {
    .instructor-content {
        margin-top: 40px;
    }
}

@media (max-width: 480px) {
    .instructor-content {
        margin-top: 30px;
    }
}

.instructor-images {
    position: sticky;
    top: 100px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    max-width: 300px;
}

.instructor-image {
    width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: var(--shadow);
    object-fit: cover;
    aspect-ratio: 3/4;
    transition: transform 0.3s ease;
    max-width: 300px;
}

.instructor-image:hover {
    transform: scale(1.02);
}

.instructor-name {
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: 30px;
    color: var(--text-light);
}

.instructor-details {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

@media (max-width: 768px) {
    .instructor-details {
        gap: 15px;
        margin-bottom: 30px;
    }
}

@media (max-width: 480px) {
    .instructor-details {
        gap: 12px;
        margin-bottom: 25px;
    }
}

.detail-item {
    display: flex;
    flex-direction: column;
    padding: 20px;
    background: var(--bg-card);
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.detail-label {
    font-size: 0.9rem;
    color: var(--text-gray-dark);
    margin-bottom: 8px;
}

.detail-value {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-light);
}

.instructor-career {
    margin-top: 40px;
}

@media (max-width: 768px) {
    .instructor-career {
        margin-top: 30px;
    }
}

@media (max-width: 480px) {
    .instructor-career {
        margin-top: 25px;
    }
}

.career-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-light);
}

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

.career-list li {
    padding: 12px 0;
    padding-left: 25px;
    position: relative;
    color: var(--text-gray);
    line-height: 1.8;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.career-list li:last-child {
    border-bottom: none;
}

.career-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--text-light);
    font-weight: 700;
}

/* 場所 */
.location {
    background: var(--bg-light);
}

.location-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-top: 60px;
    align-items: start;
}

@media (max-width: 768px) {
    .location-content {
        gap: 30px;
        margin-top: 40px;
    }
}

@media (max-width: 480px) {
    .location-content {
        gap: 25px;
        margin-top: 30px;
    }
}

.location-name {
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: 10px;
    color: var(--text-light);
}

.location-subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    font-weight: 700;
    margin-bottom: 40px;
}

.location-details {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

@media (max-width: 768px) {
    .location-details {
        gap: 25px;
    }
}

@media (max-width: 480px) {
    .location-details {
        gap: 20px;
    }
}

.location-details h4 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--text-light);
}

.location-details p {
    font-size: 1.1rem;
    color: var(--text-gray);
    line-height: 1.8;
}

.location-details ul {
    list-style: none;
    padding-left: 0;
}

.location-details ul li {
    font-size: 1.1rem;
    color: var(--text-gray);
    padding: 10px 0;
    line-height: 1.8;
}

.location-map {
    width: 100%;
    aspect-ratio: 4/3;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.location-iframe {
    width: 100%;
    height: 100%;
    border: 0;
    border-radius: 20px;
    display: block;
}

.map-placeholder {
    width: 100%;
    aspect-ratio: 4/3;
    background: var(--bg-card);
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow);
    color: var(--text-gray);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.map-placeholder p {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.map-placeholder small {
    font-size: 0.9rem;
}

/* CTAセクション */
.cta-section {
    background: linear-gradient(135deg, #9C27B0 0%, #BA68C8 50%, #CE93D8 100%);
    padding: 80px 0;
    text-align: center;
}

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

@media (max-width: 480px) {
    .cta-section {
        padding: 50px 0;
    }
}

.cta-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 900;
    color: var(--text-light);
    margin-bottom: 20px;
}

.cta-text {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 40px;
    opacity: 0.95;
}

.cta-buttons {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.cta-button-large {
    display: inline-block;
    padding: 20px 60px;
    background: var(--text-light);
    color: #000000;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.2rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    letter-spacing: 0.05em;
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.cta-button-large:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.3);
    background: #f0f0f0;
}

.cta-button-member {
    display: inline-block;
    padding: 18px 50px;
    background: rgba(255, 255, 255, 0.2);
    color: var(--text-light);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    border: 2px solid rgba(255, 255, 255, 0.3);
    letter-spacing: 0.05em;
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.cta-button-member:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .cta-buttons {
        gap: 15px;
    }

    .cta-button-large,
    .cta-button-member {
        padding: 18px 40px;
        font-size: 1rem;
    }
}

/* フッター */
.footer {
    background: var(--gradient-dark);
    color: var(--text-light);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.footer-link-group h4 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-light);
}

.footer-link-items {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-link {
    display: inline-block;
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-light);
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
    font-weight: 500;
    font-size: 0.95rem;
}

.footer-link:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateX(5px);
}

.footer-logo {
    font-size: 2rem;
    font-weight: 900;
    margin-bottom: 10px;
    color: var(--text-light);
}

.footer-tagline {
    font-size: 1rem;
    opacity: 0.8;
    color: var(--text-light);
}

.footer-social h4 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-light);
}

.social-links {
    display: flex;
    flex-direction: row;
    gap: 15px;
    flex-wrap: wrap;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 20px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-light);
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.social-link:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.social-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.social-link:hover .social-icon {
    transform: scale(1.1);
}

.social-text {
    font-size: 0.95rem;
}

@media (max-width: 480px) {
    .social-links {
        flex-direction: column;
        gap: 12px;
    }

    .social-link {
        padding: 10px 18px;
    }

    .social-icon {
        width: 22px;
        height: 22px;
    }

    .social-text {
        font-size: 0.9rem;
    }
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.7;
}

/* レスポンシブデザイン */
@media (max-width: 1024px) {
    .instructor-content {
        grid-template-columns: 250px 1fr;
        gap: 30px;
    }

    .instructor-images {
        max-width: 250px;
    }

    .instructor-image {
        max-width: 250px;
    }
}

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

    .instructor-content {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .instructor-images {
        position: static;
        max-width: 100%;
        flex-direction: row;
        justify-content: center;
        gap: 12px;
    }

    .instructor-image {
        max-width: 140px;
        aspect-ratio: 3/4;
    }

    .instructor-name {
        font-size: 2.2rem;
        margin-bottom: 20px;
    }

    .instructor-details {
        grid-template-columns: 1fr;
    }

    .location-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .footer-links {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    section {
        padding: 40px 0;
    }

    .catch-copy {
        font-size: 2rem;
        margin-bottom: 20px;
    }

    .sub-copy {
        font-size: 1rem;
        margin-bottom: 35px;
    }

    .cta-button {
        padding: 15px 35px;
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .instructor-images {
        flex-direction: row;
        align-items: center;
        gap: 10px;
    }

    .instructor-image {
        max-width: 120px;
    }

    .instructor-name {
        font-size: 1.8rem;
        margin-bottom: 20px;
    }

    .location-name {
        font-size: 1.8rem;
    }

    .location-subtitle {
        font-size: 1rem;
        margin-bottom: 25px;
    }

    .detail-item {
        padding: 15px;
    }

    .career-list li {
        padding: 10px 0;
        padding-left: 20px;
        font-size: 0.9rem;
    }

    .cta-title {
        font-size: 1.8rem;
        margin-bottom: 15px;
    }

    .cta-text {
        font-size: 1rem;
        margin-bottom: 30px;
    }

    .footer {
        padding: 40px 0 20px;
    }
}