/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans JP', 'Hiragino Sans', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

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

/* Header */
.header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    background-size: 300% 300%;
    animation: gradientShift 8s ease infinite;
    color: white;
    padding: 60px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.header::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 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="20" cy="20" r="1" fill="%23ffffff" opacity="0.1"/><circle cx="80" cy="40" r="1" fill="%23ffffff" opacity="0.1"/><circle cx="40" cy="80" r="1" fill="%23ffffff" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    pointer-events: none;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.main-title {
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.2;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    animation: titleGlow 3s ease-in-out infinite alternate;
}

@keyframes titleGlow {
    from { text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3), 0 0 20px rgba(255, 255, 255, 0.3); }
    to { text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3), 0 0 30px rgba(255, 255, 255, 0.5); }
}

.benefit-tag {
    background: linear-gradient(45deg, #ff6b6b, #ff8e8e, #ff6b6b);
    background-size: 200% 200%;
    animation: badgeShine 2s ease-in-out infinite;
    color: white;
    padding: 12px 20px;
    border-radius: 30px;
    font-size: 1.1rem;
    font-weight: 800;
    display: block;
    margin-bottom: 20px;
    box-shadow: 0 6px 20px rgba(255, 107, 107, 0.4);
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.3);
}

.event-label {
    font-size: 1.2rem;
    opacity: 0.9;
    display: block;
    margin-top: 10px;
    font-weight: 600;
}

@keyframes badgeShine {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.event-info {
    margin: 30px 0;
    font-size: 1.1rem;
}

.date-time {
    margin-bottom: 10px;
}

.date {
    font-weight: 600;
    margin-right: 20px;
}

.time {
    font-weight: 400;
}

.venue, .price {
    margin: 5px 0;
}

.remaining {
    background: linear-gradient(45deg, #ff4757, #ff6b6b);
    color: white;
    padding: 10px 20px;
    border-radius: 25px;
    font-weight: 700;
    font-size: 1.1rem;
    display: inline-block;
    margin-top: 15px;
    box-shadow: 0 4px 15px rgba(255, 71, 87, 0.4);
    animation: pulse 2s infinite;
}

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

.cta-button {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    background: linear-gradient(45deg, #ff6b6b, #ff8e8e, #ff6b6b);
    background-size: 200% 200%;
    animation: buttonGradient 3s ease infinite;
    color: white;
    padding: 20px 40px;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.3rem;
    transition: all 0.3s ease;
    box-shadow: 0 8px 25px rgba(255, 107, 107, 0.4);
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
    text-align: center;
}

.cta-sub {
    font-size: 0.8rem;
    font-weight: 600;
    margin-top: 5px;
    opacity: 0.9;
    text-transform: none;
    letter-spacing: 0;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s;
}

.cta-button:hover::before {
    left: 100%;
}

@keyframes buttonGradient {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.cta-button:hover {
    background: #ff5252;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 107, 107, 0.4);
}

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

/* Hero Section */
.hero {
    padding: 80px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    background-size: 300% 300%;
    animation: gradientShift 10s ease infinite;
    color: white;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 70%, rgba(255, 255, 255, 0.2) 0%, transparent 50%),
                radial-gradient(circle at 70% 30%, rgba(255, 255, 255, 0.15) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    display: flex;
    align-items: center;
    gap: 40px;
}

.hero-image {
    max-width: 500px;
    width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
    border: 3px solid rgba(255, 255, 255, 0.3);
    transition: all 0.4s ease;
    animation: imageFloat 6s ease-in-out infinite;
}

@keyframes imageFloat {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-10px) rotate(1deg); }
}

.hero-image:hover {
    transform: scale(1.05) rotate(2deg);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.4);
}

.hero-text h2 {
    font-size: 3rem;
    color: white;
    margin-bottom: 40px;
    font-weight: 900;
    line-height: 1.2;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
    animation: heroTitlePulse 4s ease-in-out infinite;
}

@keyframes heroTitlePulse {
    0%, 100% { transform: scale(1); text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3); }
    50% { transform: scale(1.02); text-shadow: 2px 2px 15px rgba(0, 0, 0, 0.4), 0 0 30px rgba(255, 255, 255, 0.3); }
}

.hero-points {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin: 30px 0;
}

.point {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 18px 24px;
    border-radius: 30px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    font-weight: 700;
    color: white;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.point::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.6s;
}

.point:hover::before {
    left: 100%;
}

.point:hover {
    transform: translateX(10px) scale(1.02);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
}

.hero-description {
    font-size: 1.3rem;
    color: white;
    line-height: 1.8;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    padding: 25px 30px;
    border-radius: 20px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.2);
}

/* Section Styles */
.section-title {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 40px;
    color: #333;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: #667eea;
    margin: 15px auto;
    border-radius: 2px;
}

/* About Section */
.about {
    padding: 80px 0;
    background: #f8f9fa;
}

.about-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
}

.about-item {
    background: linear-gradient(135deg, #fff 0%, #f8f9fa 100%);
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
    border: 1px solid #e9ecef;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.about-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #667eea, #764ba2, #f093fb);
}

.about-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.about-item h3 {
    font-size: 1.5rem;
    background: linear-gradient(45deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 25px;
    font-weight: 700;
    padding-bottom: 15px;
    border-bottom: 3px solid transparent;
    border-image: linear-gradient(90deg, #667eea, #764ba2, #f093fb) 1;
}

.about-item ul {
    list-style: none;
}

.about-item li {
    padding: 8px 0;
    position: relative;
    padding-left: 25px;
}

.about-item li::before {
    content: '✨';
    position: absolute;
    left: 0;
    background: linear-gradient(45deg, #667eea, #f093fb);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: bold;
    font-size: 1.1em;
}

/* Schedule Section */
.schedule {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    position: relative;
}

.schedule::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 0 100 100"><defs><pattern id="dots" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1" fill="%23667eea" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23dots)"/></svg>');
    pointer-events: none;
}

.schedule-list {
    max-width: 800px;
    margin: 0 auto;
}

.schedule-item {
    display: flex;
    align-items: flex-start;
    gap: 30px;
    padding: 25px;
    margin-bottom: 20px;
    background: #f8f9fa;
    border-radius: 10px;
    border-left: 4px solid #667eea;
    transition: all 0.3s ease;
}

.schedule-item:hover {
    transform: translateX(5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.schedule-item.keynote {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-left: 4px solid #ff6b6b;
}

.schedule-item.keynote .session-type {
    background: #ff6b6b;
    color: white;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
    display: inline-block;
    margin-bottom: 10px;
}

.time {
    font-weight: 600;
    font-size: 1.1rem;
    color: #667eea;
    min-width: 120px;
    text-align: center;
    background: white;
    padding: 8px 15px;
    border-radius: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.keynote .time {
    color: #667eea;
}

.session-info {
    flex: 1;
}

.speaker {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.speaker-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid #667eea;
}

.keynote .speaker-icon {
    border-color: #ff6b6b;
}

.speaker-name {
    font-weight: 600;
    font-size: 1.1rem;
}

.speaker-org {
    font-size: 0.9rem;
    color: #666;
}

.keynote .speaker-org {
    color: #ddd;
}

.session-title {
    font-size: 1rem;
    line-height: 1.5;
    color: #333;
}

.keynote .session-title {
    color: white;
    font-weight: 600;
}

/* Benefits Section */
.benefits {
    padding: 80px 0;
    background: #f8f9fa;
}

.benefit-card {
    max-width: 700px;
    margin: 0 auto;
    background: linear-gradient(135deg, #fff 0%, #f8f9fa 100%);
    padding: 50px;
    border-radius: 25px;
    text-align: center;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
    border: 4px solid transparent;
    background-clip: padding-box;
    position: relative;
    overflow: hidden;
}

.benefit-card::after {
    content: '';
    position: absolute;
    top: -4px;
    left: -4px;
    right: -4px;
    bottom: -4px;
    background: linear-gradient(45deg, #ff6b6b, #667eea, #f093fb, #ff6b6b);
    background-size: 400% 400%;
    animation: borderGradient 4s ease infinite;
    border-radius: 25px;
    z-index: -1;
}

@keyframes borderGradient {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.benefit-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, #ff6b6b, #667eea, #ff6b6b);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.benefit-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    animation: bounce 2s infinite;
}

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

.benefit-card h3 {
    font-size: 1.8rem;
    background: linear-gradient(45deg, #667eea, #764ba2, #f093fb);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 15px;
    font-weight: 800;
}

.benefit-subtitle {
    font-size: 1.4rem;
    background: linear-gradient(45deg, #ff6b6b, #ff8e8e);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
    margin-bottom: 25px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.benefit-description {
    color: #666;
    line-height: 1.8;
    font-size: 1rem;
}

/* CTA Section */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    background-size: 300% 300%;
    animation: gradientShift 8s ease infinite;
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.urgency-text {
    background: rgba(255, 255, 255, 0.2);
    padding: 8px 20px;
    border-radius: 20px;
    font-weight: 600;
    margin-top: 10px;
    display: inline-block;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.cta-section h2 {
    font-size: 2.2rem;
    margin-bottom: 20px;
}

.cta-section p {
    font-size: 1.1rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

/* Event Info Section */
.event-info-section {
    padding: 80px 0;
    background: #f8f9fa;
}

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

.info-item {
    background: white;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
}

.info-item:hover {
    transform: translateY(-5px);
}

.info-item h3 {
    font-size: 1.2rem;
    color: #667eea;
    margin-bottom: 15px;
    font-weight: 600;
}

.info-item p {
    color: #666;
    line-height: 1.6;
}

.info-item a {
    color: #667eea;
    text-decoration: none;
    font-weight: 600;
}

.info-item a:hover {
    text-decoration: underline;
}

/* Countdown */
.countdown {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
    flex-wrap: wrap;
}

.countdown-item {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 15px;
    padding: 15px 20px;
    text-align: center;
    min-width: 80px;
}

.countdown-item span {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: white;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.3);
}

.countdown-item label {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 600;
    margin-top: 5px;
}

/* Urgency Container */
.urgency-container {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    padding: 25px;
    margin: 20px auto 30px auto;
    max-width: 500px;
}

.urgency-container p {
    margin: 0 0 15px 0;
    font-size: 1.2rem;
    font-weight: 700;
}

.seats-bar {
    background: rgba(255, 255, 255, 0.2);
    height: 10px;
    border-radius: 10px;
    overflow: hidden;
    margin: 10px 0;
}

.seats-filled {
    background: linear-gradient(90deg, #ff6b6b, #ff8e8e);
    height: 100%;
    border-radius: 10px;
    transition: width 1s ease;
}

.seats-text {
    font-size: 0.9rem;
    opacity: 0.9;
    margin: 10px 0 0 0;
}

/* FAQ Section */
.faq-section {
    padding: 80px 0;
    background: #f8f9fa;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    border-radius: 15px;
    margin-bottom: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.faq-question {
    padding: 25px 30px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, #fff 0%, #f8f9fa 100%);
    border-bottom: 1px solid #e9ecef;
}

.faq-question h3 {
    margin: 0;
    font-size: 1.1rem;
    color: #333;
    font-weight: 600;
}

.faq-toggle {
    font-size: 1.5rem;
    font-weight: bold;
    color: #667eea;
    transition: transform 0.3s ease;
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 30px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
    padding: 20px 30px;
    max-height: 200px;
}

.faq-answer p {
    margin: 0;
    color: #666;
    line-height: 1.6;
}

/* Footer */
.footer {
    background: #333;
    color: white;
    text-align: center;
    padding: 30px 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .main-title {
        font-size: 1.8rem;
        line-height: 1.3;
    }
    
    .benefit-tag {
        font-size: 1rem;
        padding: 10px 16px;
    }
    
    .event-label {
        font-size: 1rem;
    }
    
    .countdown {
        gap: 10px;
        margin-top: 20px;
    }
    
    .countdown-item {
        padding: 10px 15px;
        min-width: 60px;
    }
    
    .countdown-item span {
        font-size: 1.5rem;
    }
    
    .hero-content {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-image {
        max-width: 100%;
    }
    
    .hero-text h2 {
        font-size: 1.8rem;
    }
    
    .hero-points {
        gap: 12px;
    }
    
    .point {
        padding: 12px 16px;
        font-size: 0.9rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .about-item {
        padding: 30px;
    }
    
    .schedule-item {
        flex-direction: column;
        gap: 15px;
        padding: 20px;
    }
    
    .time {
        text-align: center;
        min-width: auto;
        margin-bottom: 10px;
    }
    
    .benefit-card {
        padding: 30px;
        margin: 0 10px;
    }
    
    .urgency-container {
        padding: 20px;
        margin: 15px 10px 25px 10px;
    }
    
    .faq-question {
        padding: 20px;
    }
    
    .faq-question h3 {
        font-size: 1rem;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
    
    .container {
        padding: 0 15px;
    }
}

@media (max-width: 480px) {
    .main-title {
        font-size: 1.5rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .hero-text h2 {
        font-size: 1.5rem;
    }
    
    .cta-button {
        padding: 12px 24px;
        font-size: 1rem;
    }
    
    .cta-button.large {
        padding: 16px 32px;
        font-size: 1.1rem;
    }
}