:root {
    --primary-color: #8B4513;
    --secondary-color: #D4AF37;
    --accent-color: #C41E3A;
    --text-dark: #2C1810;
    --text-light: #FFFFFF;
    --bg-light: #FFF8F0;
    --bg-dark: #1A1A1A;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    --shadow-heavy: 0 8px 40px rgba(0, 0, 0, 0.2);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Serif JP', 'Shippori Mincho', serif;
    line-height: 1.8;
    color: var(--text-dark);
    background-color: var(--bg-light);
    overflow-x: hidden;
}

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

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    overflow: hidden;
}

.hero::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"><path d="M50 0 L100 50 L50 100 L0 50 Z" fill="%23ffffff" opacity="0.05"/></svg>');
    animation: patternMove 20s linear infinite;
}

@keyframes patternMove {
    0% { transform: translateX(0) translateY(0); }
    100% { transform: translateX(100px) translateY(100px); }
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(26, 26, 26, 0.3), rgba(26, 26, 26, 0.5));
}

.hero-content {
    position: relative;
    text-align: center;
    padding: 40px 20px;
    max-width: 1000px;
    margin: 0 auto;
}

.hero-banner {
    width: 100%;
    max-width: 900px;
    height: auto;
    border-radius: 20px;
    box-shadow: var(--shadow-heavy);
    margin-bottom: 40px;
    animation: fadeInUp 1s ease-out;
}

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

.hero-text {
    animation: fadeInUp 1s ease-out 0.3s both;
}

.main-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    color: var(--text-light);
    font-weight: 900;
    margin-bottom: 20px;
    text-shadow: 3px 3px 8px rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.title-line {
    display: block;
}

.title-english {
    font-size: 0.6em;
    font-family: 'Georgia', serif;
    font-style: italic;
    color: var(--secondary-color);
    letter-spacing: 2px;
}

.subtitle {
    font-size: clamp(1rem, 2.5vw, 1.5rem);
    color: var(--text-light);
    margin-bottom: 40px;
    text-shadow: 2px 2px 6px rgba(0, 0, 0, 0.5);
}

.cta-button {
    display: inline-block;
    padding: 18px 50px;
    background: linear-gradient(135deg, var(--accent-color), #E74C3C);
    color: var(--text-light);
    text-decoration: none;
    border-radius: 50px;
    font-size: 1.2rem;
    font-weight: 700;
    box-shadow: var(--shadow-heavy);
    transition: all 0.3s ease;
    border: 3px solid var(--secondary-color);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 50px rgba(196, 30, 58, 0.4);
    background: linear-gradient(135deg, #E74C3C, var(--accent-color));
}

.cta-button i {
    margin-right: 10px;
}

.pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* Section Styles */
.section {
    padding: 80px 0;
    position: relative;
}

.section:nth-child(even) {
    background-color: #FFFFFF;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    text-align: center;
    margin-bottom: 60px;
    color: var(--primary-color);
    font-weight: 900;
    position: relative;
    padding-bottom: 20px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: linear-gradient(to right, var(--accent-color), var(--secondary-color));
}

.section-title.light {
    color: var(--text-light);
}

.title-decoration {
    color: var(--secondary-color);
    margin: 0 15px;
}

/* Overview Section */
.overview {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--text-light);
}

.overview .section-title {
    color: var(--text-light);
}

.overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.overview-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    box-shadow: var(--shadow);
    border: 2px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.overview-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-heavy);
    background: rgba(255, 255, 255, 0.15);
}

.icon-circle {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    font-size: 2rem;
    color: var(--text-light);
}

.overview-card h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--secondary-color);
    font-weight: 700;
}

.emphasis {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.time-list {
    list-style: none;
    text-align: left;
    display: inline-block;
}

.time-list li {
    margin-bottom: 10px;
    font-size: 1.1rem;
}

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

.note {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* About Section */
.about-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.lead-text {
    font-size: clamp(1.3rem, 3vw, 1.8rem);
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 30px;
    line-height: 1.8;
}

.description-text {
    font-size: 1.2rem;
    line-height: 2;
    color: var(--text-dark);
}

/* Speakers Section */
.speakers {
    background-color: #FFF8F0;
}

.speaker-card {
    max-width: 900px;
    margin: 0 auto 60px;
    background: #FFFFFF;
    padding: 50px;
    border-radius: 20px;
    box-shadow: var(--shadow);
    border-left: 8px solid var(--accent-color);
    transition: all 0.3s ease;
}

.speaker-card:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-heavy);
}

.speaker-icon {
    text-align: center;
    margin-bottom: 20px;
}

.dragon-icon {
    font-size: 4rem;
}

.speaker-header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 3px solid var(--secondary-color);
}

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

.speaker-name-en {
    font-size: 1.2rem;
    font-weight: 500;
    margin-left: 15px;
    color: #666;
}

.speaker-title {
    font-size: 1.3rem;
    color: var(--accent-color);
    font-weight: 600;
    margin-bottom: 5px;
}

.speaker-subtitle {
    font-size: 1.1rem;
    color: #666;
    font-style: italic;
    margin-top: 10px;
}

.speaker-bio {
    margin-top: 30px;
}

.bio-list {
    list-style: none;
    margin-bottom: 25px;
}

.bio-list li {
    padding: 12px 0 12px 35px;
    position: relative;
    font-size: 1.1rem;
    line-height: 1.7;
}

.bio-list li::before {
    content: '◆';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-size: 1rem;
}

.speaker-description {
    font-size: 1.1rem;
    line-height: 1.9;
    padding: 20px;
    background-color: var(--bg-light);
    border-radius: 10px;
    color: var(--text-dark);
}

/* Target Audience Section */
.target {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    color: var(--text-light);
}

.target .section-title {
    color: var(--text-light);
}

.target-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}

.target-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 25px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.target-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateX(10px);
}

.target-item i {
    font-size: 1.8rem;
    color: var(--secondary-color);
    flex-shrink: 0;
}

.target-item p {
    font-size: 1.1rem;
    line-height: 1.6;
}

/* Experience Section */
.experience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    max-width: 1100px;
    margin: 0 auto;
}

.experience-card {
    text-align: center;
    padding: 40px 30px;
    background: #FFFFFF;
    border-radius: 20px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border-top: 5px solid var(--accent-color);
}

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

.experience-icon {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    font-size: 2.5rem;
    color: var(--text-light);
}

.experience-card h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
    font-weight: 700;
}

.experience-card p {
    font-size: 1.1rem;
    line-height: 1.7;
    color: #555;
}

/* Message Section */
.message {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--text-light);
}

.message .section-title {
    color: var(--text-light);
}

.message-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.message-text {
    font-size: clamp(1.1rem, 2.5vw, 1.4rem);
    line-height: 2.2;
    margin-bottom: 30px;
    padding: 30px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.message-text.highlight {
    background: rgba(212, 175, 55, 0.2);
    border: 3px solid var(--secondary-color);
    font-weight: 700;
    font-size: clamp(1.2rem, 2.8vw, 1.6rem);
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--accent-color) 0%, #E74C3C 100%);
    color: var(--text-light);
    padding: 100px 0;
}

.cta-content {
    text-align: center;
}

.cta-text {
    font-size: 1.3rem;
    margin-bottom: 40px;
    font-weight: 600;
}

.cta-button.large {
    font-size: 1.5rem;
    padding: 25px 70px;
}

/* Contact Form Section */
.contact-form {
    background-color: #F5F5F5;
}

.form-wrapper {
    max-width: 700px;
    margin: 0 auto;
    background: #FFFFFF;
    padding: 60px;
    border-radius: 20px;
    box-shadow: var(--shadow-heavy);
}

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

.form-group {
    margin-bottom: 30px;
}

.form-group label {
    display: block;
    font-size: 1.1rem;
    color: var(--text-dark);
    margin-bottom: 10px;
    font-weight: 600;
}

.required {
    color: var(--accent-color);
    font-weight: 700;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid #DDD;
    border-radius: 10px;
    font-size: 1rem;
    font-family: 'Noto Serif JP', serif;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 10px rgba(196, 30, 58, 0.2);
}

.form-submit {
    text-align: center;
    margin-top: 40px;
}

.submit-button {
    padding: 18px 60px;
    background: linear-gradient(135deg, var(--accent-color), #E74C3C);
    color: var(--text-light);
    border: none;
    border-radius: 50px;
    font-size: 1.3rem;
    font-weight: 700;
    cursor: pointer;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.submit-button:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-heavy);
    background: linear-gradient(135deg, #E74C3C, var(--accent-color));
}

.form-success {
    text-align: center;
    padding: 60px;
}

.form-success i {
    font-size: 5rem;
    color: #27AE60;
    margin-bottom: 20px;
}

.form-success h3 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.form-success p {
    font-size: 1.2rem;
    line-height: 1.8;
    color: #555;
}

/* Footer */
.footer {
    background: var(--bg-dark);
    color: var(--text-light);
    padding: 60px 0 30px;
}

.footer-content {
    text-align: center;
    margin-bottom: 30px;
}

.footer-title h4 {
    font-size: 2rem;
    margin-bottom: 10px;
    color: var(--secondary-color);
}

.footer-subtitle {
    font-size: 1.2rem;
    font-style: italic;
    margin-bottom: 20px;
    color: #CCC;
}

.footer-info p {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #444;
}

.footer-bottom p {
    font-size: 0.9rem;
    color: #999;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-banner {
        max-width: 100%;
        border-radius: 10px;
    }

    .section {
        padding: 50px 0;
    }

    .section-title {
        margin-bottom: 40px;
    }

    .overview-grid,
    .target-grid,
    .experience-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .speaker-card {
        padding: 30px 20px;
    }

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

    .speaker-name-en {
        display: block;
        margin-left: 0;
        margin-top: 5px;
        font-size: 1rem;
    }

    .form-wrapper {
        padding: 30px 20px;
    }

    .title-decoration {
        margin: 0 8px;
    }
}

@media (max-width: 480px) {
    .cta-button {
        padding: 15px 35px;
        font-size: 1rem;
    }

    .price {
        font-size: 2rem;
    }

    .bio-list li {
        font-size: 1rem;
        padding-left: 25px;
    }
}