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

:root {
    --primary-color: #ff6b35;
    --secondary-color: #004e89;
    --dark-color: #1a1a2e;
    --light-color: #f5f5f5;
    --white: #ffffff;
    --gray: #666666;
    --light-gray: #e0e0e0;
    --accent-color: #00d9ff;
    --success-color: #4caf50;
    
    --font-primary: 'Noto Sans JP', sans-serif;
    --font-heading: 'Montserrat', 'Noto Sans JP', sans-serif;
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.2);
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--dark-color);
    line-height: 1.8;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

/* ========================================
   共通コンポーネント
======================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
}

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

.section-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--dark-color);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

.section-subtitle {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    color: var(--gray);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 700;
}

/* ボタン */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    background: linear-gradient(135deg, var(--primary-color), #ff8c5a);
    color: var(--white);
    font-weight: 700;
    font-size: 1.1rem;
    border-radius: 50px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, #ff8c5a, var(--primary-color));
}

.btn-large {
    padding: 20px 40px;
    font-size: 1.2rem;
}

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

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: nowrap;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--primary-color);
    white-space: nowrap;
}

.nav-menu {
    display: flex;
    gap: 30px;
    align-items: center;
    flex-wrap: nowrap;
    white-space: nowrap;
}

.nav-menu a {
    font-weight: 500;
    color: var(--dark-color);
    position: relative;
    white-space: nowrap;
}

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

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

.btn-nav {
    padding: 10px 24px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 25px;
    font-weight: 700;
}

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

.btn-nav::after {
    display: none;
}

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--dark-color);
    border-radius: 2px;
    transition: var(--transition);
}

/* ========================================
   ファーストビュー
======================================== */
.hero {
    position: relative;
    width: 100%;
    background: var(--white);
}

.hero-banner {
    width: 100%;
    overflow: hidden;
    position: relative;
    background: #2c3e2e;
}

.hero-banner img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
}

.hero-action {
    max-width: 1200px;
    margin: 40px auto 0;
    padding: 0 40px 80px;
    position: relative;
    z-index: 10;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 40px;
}

.hero-info-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    width: 100%;
    animation: fadeInUp 1s ease;
}

.info-card {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 25px 30px;
    background: var(--white);
    border-radius: 15px;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
}

.info-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    flex-shrink: 0;
}

.info-label {
    font-size: 0.85rem;
    color: var(--gray);
    font-weight: 500;
    margin-bottom: 5px;
}

.info-value {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--dark-color);
}

.btn-hero-large {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    padding: 24px 50px;
    font-size: 1.4rem;
    background: linear-gradient(135deg, var(--primary-color), #ff8c5a);
    color: var(--white);
    font-weight: 900;
    border-radius: 60px;
    box-shadow: 0 10px 40px rgba(255, 107, 53, 0.4);
    transition: var(--transition);
    cursor: pointer;
    border: none;
    animation: fadeInUp 0.8s ease, pulse 2s infinite;
}

.btn-hero-large:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 50px rgba(255, 107, 53, 0.5);
}

.hero-card-value {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--dark-color);
}

/* ========================================
   イベント概要セクション
======================================== */
.section-about {
    background: var(--white);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
    align-items: start;
}

.about-headline {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 20px;
}

.about-text {
    font-size: 1.05rem;
    line-height: 1.9;
    color: var(--gray);
    margin-bottom: 20px;
}

.features {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 40px;
}

.feature-item {
    display: flex;
    gap: 20px;
    padding: 25px;
    background: var(--light-color);
    border-radius: 12px;
    transition: var(--transition);
}

.feature-item:hover {
    background: #fff;
    box-shadow: var(--shadow-md);
    transform: translateX(10px);
}

.feature-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: var(--white);
    border-radius: 12px;
    font-size: 1.8rem;
    flex-shrink: 0;
}

.feature-content h4 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--dark-color);
}

.feature-content p {
    color: var(--gray);
    line-height: 1.6;
}

/* 料金カード */
.pricing-card {
    background: linear-gradient(135deg, var(--secondary-color), #003d6b);
    color: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    position: sticky;
    top: 100px;
}

.pricing-header {
    padding: 25px;
    background: rgba(0, 0, 0, 0.2);
    text-align: center;
}

.pricing-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
}

.pricing-body {
    padding: 30px;
}

.price-main {
    text-align: center;
    margin-bottom: 25px;
    padding-bottom: 25px;
    border-bottom: 2px solid rgba(255, 255, 255, 0.2);
}

.price-value {
    font-size: 4rem;
    font-weight: 900;
    font-family: var(--font-heading);
}

.price-unit {
    font-size: 1.5rem;
    font-weight: 700;
}

.price-value-free {
    font-size: 4.5rem;
    font-weight: 900;
    font-family: var(--font-heading);
    color: var(--success-color);
    text-shadow: 0 2px 10px rgba(76, 175, 80, 0.3);
}

.price-includes,
.price-additional {
    margin-bottom: 20px;
}

.price-includes p,
.price-additional p {
    font-weight: 700;
    margin-bottom: 12px;
}

.price-includes ul,
.price-additional ul {
    padding-left: 0;
}

.price-includes li,
.price-additional li {
    padding: 8px 0;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.price-includes i,
.price-additional i {
    color: var(--accent-color);
    margin-top: 3px;
}

.price-additional {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 2px solid rgba(255, 255, 255, 0.2);
}

.price-additional small {
    font-size: 0.85rem;
    opacity: 0.9;
}

/* ========================================
   ゲストセクション
======================================== */
.section-guest {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.guest-content {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.guest-name {
    font-size: 3rem;
    font-weight: 900;
    color: var(--dark-color);
    margin-bottom: 20px;
    text-align: left;
    padding-bottom: 20px;
    border-bottom: 3px solid var(--primary-color);
}

.guest-details {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    align-items: start;
}

.guest-image {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.guest-image img {
    width: 100%;
    height: auto;
    display: block;
}

.guest-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 12px 20px;
    background: rgba(255, 0, 0, 0.9);
    color: var(--white);
    border-radius: 25px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 0.95rem;
    backdrop-filter: blur(5px);
}

.guest-badge i {
    font-size: 1.2rem;
}

.guest-title {
    font-size: 1.1rem;
    color: var(--primary-color);
    font-weight: 700;
    margin-bottom: 25px;
}

.guest-bio {
    background: var(--white);
    padding: 25px;
    border-radius: 15px;
    margin-bottom: 30px;
    border-left: 4px solid var(--primary-color);
}

.guest-bio p {
    color: var(--gray);
    line-height: 1.9;
    margin-bottom: 15px;
}

.guest-bio p:last-child {
    margin-bottom: 0;
}

.guest-achievements {
    background: var(--white);
    padding: 25px;
    border-radius: 15px;
    margin-bottom: 25px;
}

.guest-achievements h4 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--secondary-color);
}

.guest-achievements ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.guest-achievements li {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--gray);
}

.guest-achievements i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

.guest-social {
    display: flex;
    gap: 15px;
}

.social-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 24px;
    background: #ff0000;
    color: var(--white);
    border-radius: 25px;
    font-weight: 700;
    transition: var(--transition);
}

.social-link:hover {
    background: #cc0000;
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

/* パークギャラリー */
.park-gallery {
    margin-top: 60px;
    padding-top: 60px;
    border-top: 2px solid var(--light-gray);
}

.gallery-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark-color);
    text-align: center;
    margin-bottom: 40px;
}

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

.gallery-item {
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    background: var(--white);
}

.gallery-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.gallery-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    display: block;
}

.gallery-caption {
    padding: 15px 20px;
    font-weight: 700;
    color: var(--dark-color);
    text-align: center;
    background: var(--white);
}

/* ========================================
   インストラクターセクション
======================================== */
.section-instructor {
    background: var(--white);
}

.instructor-content {
    max-width: 1000px;
    margin: 0 auto;
}

.instructor-card {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 50px;
    background: var(--light-color);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.instructor-image {
    position: relative;
    overflow: hidden;
}

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

.instructor-info {
    padding: 40px 40px 40px 0;
}

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

.instructor-title {
    font-size: 1.1rem;
    color: var(--primary-color);
    font-weight: 700;
    margin-bottom: 25px;
}

.instructor-credentials {
    background: var(--white);
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 25px;
    border-left: 4px solid var(--secondary-color);
}

.credential-item {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--dark-color);
    font-weight: 500;
}

.credential-item i {
    color: var(--secondary-color);
    font-size: 1.3rem;
}

.instructor-achievements {
    background: var(--white);
    padding: 25px;
    border-radius: 10px;
    margin-bottom: 25px;
}

.instructor-achievements h4 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--secondary-color);
}

.instructor-achievements ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.instructor-achievements li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--gray);
    line-height: 1.7;
}

.instructor-achievements i {
    color: var(--primary-color);
    font-size: 1.1rem;
    flex-shrink: 0;
}

.instructor-message {
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.1), rgba(0, 217, 255, 0.1));
    padding: 20px;
    border-radius: 10px;
    border-left: 4px solid var(--primary-color);
}

.instructor-message p {
    color: var(--dark-color);
    line-height: 1.8;
    font-weight: 500;
}

/* ========================================
   スケジュールセクション
======================================== */
.section-schedule {
    background: var(--white);
}

.schedule-timeline {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
}

.schedule-timeline::before {
    content: '';
    position: absolute;
    left: 80px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--primary-color), var(--accent-color));
}

.timeline-item {
    position: relative;
    padding: 30px 0 30px 140px;
    transition: var(--transition);
}

.timeline-item:hover {
    transform: translateX(10px);
}

.timeline-time {
    position: absolute;
    left: 0;
    top: 30px;
    width: 70px;
    text-align: center;
    font-weight: 900;
    font-size: 1.1rem;
    color: var(--primary-color);
    font-family: var(--font-heading);
}

.timeline-item::after {
    content: '';
    position: absolute;
    left: 70px;
    top: 38px;
    width: 20px;
    height: 20px;
    background: var(--white);
    border: 4px solid var(--primary-color);
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.2);
}

.timeline-item.highlight::after {
    background: var(--primary-color);
    width: 24px;
    height: 24px;
    left: 68px;
    top: 36px;
    animation: pulse 2s infinite;
}

.timeline-content {
    background: var(--light-color);
    padding: 25px;
    border-radius: 15px;
    box-shadow: var(--shadow-sm);
}

.timeline-item.highlight .timeline-content {
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.1), rgba(0, 217, 255, 0.1));
    border: 2px solid var(--primary-color);
}

.timeline-content h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.timeline-content p {
    color: var(--gray);
    line-height: 1.7;
    margin-bottom: 8px;
}

.timeline-content p:last-child {
    margin-bottom: 0;
}

.timeline-location {
    color: var(--primary-color);
    font-weight: 700;
}

.timeline-location i {
    margin-right: 5px;
}

.timeline-note {
    font-size: 0.95rem;
    font-style: italic;
    color: var(--secondary-color);
    margin-top: 10px;
}

.schedule-notes {
    margin-top: 60px;
    padding: 30px;
    background: linear-gradient(135deg, var(--secondary-color), #003d6b);
    color: var(--white);
    border-radius: 20px;
}

.schedule-notes h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.notes-content p {
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.notes-content i {
    color: var(--accent-color);
}

.notes-small {
    font-size: 0.95rem;
    opacity: 0.9;
}

/* ========================================
   会場情報セクション
======================================== */
.section-venue {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.venue-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 40px;
}

.venue-card {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.venue-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.venue-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--light-color);
}

.venue-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: var(--transition);
}

.venue-card:hover .venue-image img {
    transform: scale(1.05);
}

.venue-content {
    padding: 30px;
}

.venue-name {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.venue-name i {
    color: var(--primary-color);
}

.venue-label {
    display: inline-block;
    padding: 5px 15px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.venue-info {
    margin-bottom: 20px;
}

.venue-address {
    color: var(--gray);
    line-height: 1.8;
    padding: 15px;
    background: var(--light-color);
    border-radius: 10px;
    margin-bottom: 10px;
}

.venue-address i {
    color: var(--primary-color);
    margin-right: 8px;
}

.venue-note {
    color: var(--secondary-color);
    font-weight: 500;
    padding: 12px;
    background: rgba(0, 78, 137, 0.1);
    border-radius: 8px;
    border-left: 3px solid var(--secondary-color);
}

.venue-note i {
    color: var(--secondary-color);
    margin-right: 8px;
}

.venue-map {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

/* ========================================
   申込セクション
======================================== */
.section-apply {
    background: linear-gradient(135deg, var(--secondary-color) 0%, #003d6b 100%);
    color: var(--white);
}

.section-apply .section-title,
.section-apply .section-subtitle {
    color: var(--white);
}

.section-apply .section-title::after {
    background: linear-gradient(90deg, var(--accent-color), var(--white));
}

.apply-content {
    max-width: 1000px;
    margin: 0 auto;
}

.apply-body {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 50px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-bottom: 40px;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.info-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    font-size: 1.5rem;
    color: var(--accent-color);
    flex-shrink: 0;
}

.info-text h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 5px;
}

.info-text p {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 3px;
}

.info-sub {
    font-size: 0.9rem;
    opacity: 0.85;
    font-weight: 400;
}

.requirements {
    background: rgba(255, 255, 255, 0.15);
    padding: 30px;
    border-radius: 15px;
    margin-bottom: 40px;
}

.requirements h3 {
    font-size: 1.4rem;
    margin-bottom: 20px;
}

.requirements ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.requirements li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    line-height: 1.7;
}

.requirements i {
    color: var(--accent-color);
    margin-top: 3px;
    flex-shrink: 0;
}

.apply-button-section {
    text-align: center;
}

.apply-note {
    margin-top: 15px;
    font-size: 0.9rem;
    opacity: 0.85;
}

/* ========================================
   主催者情報セクション
======================================== */
.section-organizer {
    background: var(--white);
    padding: 60px 0;
}

.organizer-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    padding: 40px;
    background: var(--light-color);
    border-radius: 20px;
}

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

.organizer-info {
    margin-bottom: 25px;
}

.organizer-info p {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--gray);
}

.organizer-contact {
    font-size: 1.05rem;
    color: var(--secondary-color);
    font-weight: 500;
}

.organizer-contact i {
    margin-right: 8px;
    color: var(--primary-color);
}

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

.footer-content p {
    opacity: 0.8;
}

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

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(255, 107, 53, 0.7);
    }
    50% {
        box-shadow: 0 0 0 10px rgba(255, 107, 53, 0);
    }
}

/* ========================================
   レスポンシブデザイン
======================================== */
@media (max-width: 1024px) {
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .pricing-card {
        position: static;
    }
    
    .guest-details {
        grid-template-columns: 1fr;
    }
    
    .guest-name {
        font-size: 2.5rem;
    }
    
    .instructor-card {
        grid-template-columns: 1fr;
    }
    
    .instructor-info {
        padding: 40px;
    }
    
    .instructor-name {
        font-size: 2rem;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
    
    .nav-menu {
        gap: 25px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--white);
        flex-direction: column;
        justify-content: flex-start;
        padding: 40px;
        transition: var(--transition);
        box-shadow: var(--shadow-lg);
        gap: 20px;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .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(8px, -8px);
    }
    
    .section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-action {
        margin: 30px auto 0;
        padding: 0 20px 60px;
    }
    
    .hero-info-cards {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .info-card {
        padding: 20px 25px;
    }
    
    .btn-hero-large {
        padding: 20px 40px;
        font-size: 1.2rem;
        width: 100%;
    }
    
    .venue-grid {
        grid-template-columns: 1fr;
    }
    
    .schedule-timeline::before {
        left: 60px;
    }
    
    .timeline-item {
        padding-left: 100px;
    }
    
    .timeline-time {
        width: 50px;
        left: 0;
        font-size: 0.85rem;
        writing-mode: horizontal-tb;
        top: 30px;
        text-align: center;
    }
    
    .timeline-item::after {
        left: 50px;
    }
    
    .timeline-item.highlight::after {
        left: 48px;
    }
    
    .apply-body {
        padding: 30px 20px;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .gallery-item img {
        height: 200px;
    }
    
    .instructor-info {
        padding: 30px 20px;
    }
}

@media (max-width: 480px) {
    .section-title {
        font-size: 1.7rem;
    }
    
    .btn-primary {
        padding: 14px 24px;
        font-size: 1rem;
    }
    
    .hero-action {
        margin: 20px auto 0;
        padding: 0 15px 50px;
    }
    
    .hero-info-cards {
        gap: 15px;
    }
    
    .btn-hero-large {
        padding: 18px 30px;
        font-size: 1.1rem;
    }
    
    .info-card {
        padding: 20px;
    }
    
    .info-card i {
        font-size: 2rem;
    }
    
    .logo {
        font-size: 1.2rem;
    }
    
    .price-value-free {
        font-size: 3.5rem;
    }
}