:root {
    --primary-gray: #2C2C2C;
    --secondary-gray: #404040;
    --light-gray: #E8E8E8;
    --dark-gray: #1A1A1A;
    --accent-gray: #dedede;
    --text-color: #F5F5F5;
    --bg-color: #0F0F0F;
    --section-bg: #1E1E1E;
    --card-bg: #2A2A2A;
    --border-gray: #4A4A4A;
    --hover-gray: #5A5A5A;
    --shadow-gray: rgba(0, 0, 0, 0.3);
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Roboto', 'Noto Serif JP', serif;
    margin: 0;
    padding: 0;
    line-height: 1.8;
    font-weight: 300;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

.hero {
    background: linear-gradient(rgba(15, 15, 15, 0.7), rgba(30, 30, 30, 0.8)), url('../../images/common/cover2.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 20px;
    box-sizing: border-box;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 30%, rgba(107, 107, 107, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(232, 232, 232, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(74, 74, 74, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 90% 20%, rgba(64, 64, 64, 0.1) 0%, transparent 50%);
    animation: gray-elegance 10s ease-in-out infinite;
    pointer-events: none;
}

@keyframes gray-elegance {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

.hero .catchphrase {
    font-family: 'Noto Serif JP', serif;
    font-size: 2.2rem;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.9);
    margin-bottom: 20px;
    color: var(--light-gray);
    position: relative;
    z-index: 2;
}

.hero .event-title {
    font-family: 'Noto Serif JP', serif;
    font-size: 3rem;
    color: var(--text-color);
    margin: 10px 0;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.9);
    position: relative;
    z-index: 2;
}

.hero .event-subtitle {
    font-size: 1.8rem;
    color: var(--accent-gray);
    font-family: 'Noto Serif JP', serif;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.9);
    position: relative;
    z-index: 2;
    margin-top: 20px;
}

.cta-button {
    display: inline-block;
    background: linear-gradient(45deg, var(--secondary-gray), var(--accent-gray));
    color: var(--text-color);
    padding: 15px 35px;
    text-decoration: none;
    font-weight: bold;
    border-radius: 25px;
    margin-top: 40px;
    transition: all 0.3s ease;
    font-family: 'Noto Serif JP', serif;
    box-shadow: 0 4px 15px var(--shadow-gray);
    position: relative;
    z-index: 2;
    border: 2px solid var(--border-gray);
}

.cta-button::before {
    content: '🎵';
    font-size: 1.2rem;
    margin-right: 10px;
    animation: music-note 2s ease-in-out infinite;
}

@keyframes music-note {
    0%, 100% { 
        transform: rotate(0deg);
    }
    50% { 
        transform: rotate(15deg);
    }
}

.cta-button:hover {
    background: linear-gradient(45deg, var(--accent-gray), var(--hover-gray));
    color: var(--text-color);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 8px 25px var(--shadow-gray);
    border-color: var(--light-gray);
}

.section {
    padding: 80px 20px;
    text-align: center;
    background-color: var(--section-bg);
    color: var(--light-gray);
}

.section:nth-child(even) {
    background: linear-gradient(135deg, var(--card-bg) 0%, var(--section-bg) 100%);
}

.section-title {
    font-family: 'Noto Serif JP', serif;
    font-size: 2.5rem;
    color: var(--text-color);
    margin-bottom: 40px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    display: block;
    width: 60%;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-gray), var(--light-gray), var(--border-gray));
    margin: 10px auto 0;
    border-radius: 2px;
}

.greeting p {
    max-width: 100%;
    margin: 0 auto 20px;
    text-align: center;
    color: var(--light-gray);
    font-size: 1.2rem;
    line-height: 2.2;
}

.greeting .signature {
    text-align: right;
    margin-top: 30px;
    color: var(--accent-gray);
    font-weight: bold;
}

.performer-card {
    display: flex;
    align-items: center;
    gap: 40px;
    margin-bottom: 60px;
    text-align: left;
    padding: 30px;
    background: linear-gradient(135deg, var(--card-bg) 0%, var(--section-bg) 100%);
    border-radius: 20px;
    box-shadow: 0 10px 30px var(--shadow-gray);
    transition: transform 0.3s ease;
    border: 1px solid var(--border-gray);
}

.performer-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px var(--shadow-gray);
    border-color: var(--accent-gray);
}

.performer-card:nth-child(even) {
    flex-direction: row-reverse;
}

.performer-card img {
    width: 250px;
    height: 250px;
    object-fit: cover;
    border-radius: 50%;
    border: 4px solid var(--border-gray);
    box-shadow: 0 8px 25px var(--shadow-gray);
    transition: transform 0.3s ease;
}

.performer-card:hover img {
    transform: scale(1.05);
    border-color: var(--accent-gray);
}

.performer-card .description {
    flex: 1;
    color: var(--light-gray);
}

.performer-card .name {
    font-family: 'Noto Serif JP', serif;
    font-size: 1.8rem;
    color: var(--text-color);
    margin-bottom: 10px;
}

.program-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.program-item {
    padding: 25px;
    background: linear-gradient(135deg, var(--card-bg) 0%, var(--section-bg) 100%);
    border-radius: 15px;
    box-shadow: 0 8px 25px var(--shadow-gray);
    transition: all 0.3s ease;
    border: 1px solid var(--border-gray);
}

.program-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px var(--shadow-gray);
    border-color: var(--accent-gray);
}

.program-item h3 {
    font-family: 'Noto Serif JP', serif;
    font-size: 1.4rem;
    color: var(--text-color);
    margin-bottom: 10px;
}

.program-item p {
    color: var(--light-gray);
    font-size: 1.1rem;
}

.details-table {
    display: table;
    width: 100%;
    max-width: 700px;
    margin: 0 auto;
    border-collapse: collapse;
    background: linear-gradient(135deg, var(--card-bg) 0%, var(--section-bg) 100%);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px var(--shadow-gray);
    border: 1px solid var(--border-gray);
}

.details-row {
    display: table-row;
}

.details-header, .details-data {
    display: table-cell;
    padding: 20px;
    text-align: left;
    border-bottom: 1px solid var(--border-gray);
    color: var(--light-gray);
}

.details-header {
    font-weight: bold;
    color: var(--text-color);
    width: 120px;
    background: linear-gradient(135deg, var(--secondary-gray), var(--accent-gray));
    color: var(--text-color);
}

.details-data a {
    color: var(--accent-gray);
    text-decoration: none;
    font-weight: bold;
}

.details-data a:hover {
    color: var(--light-gray);
}

.event-info {
    padding: 20px;
    background: linear-gradient(135deg, var(--bg-color) 0%, var(--section-bg) 100%);
}

.info-card {
    max-width: 1000px;
    margin: 0 auto;
    padding: 30px;
    background: linear-gradient(135deg, var(--card-bg) 0%, var(--section-bg) 100%);
    border-radius: 20px;
    box-shadow: 0 15px 40px var(--shadow-gray);
    border: 2px solid var(--border-gray);
}

.info-card h2 {
    font-family: 'Noto Serif JP', serif;
    font-size: 2rem;
    color: var(--text-color);
    text-align: center;
    margin-bottom: 40px;
    position: relative;
}

.info-card h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-gray), var(--light-gray));
    margin: 15px auto 0;
    border-radius: 2px;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 20px;
}

.info-item {
    padding: 25px;
    background: linear-gradient(135deg, var(--card-bg) 0%, var(--section-bg) 100%);
    border-radius: 15px;
    box-shadow: 0 8px 25px var(--shadow-gray);
    transition: all 0.3s ease;
    border: 1px solid var(--border-gray);
}

.info-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px var(--shadow-gray);
    border-color: var(--accent-gray);
}

.info-item h3 {
    font-family: 'Noto Serif JP', serif;
    font-size: 1.4rem;
    color: var(--text-color);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.info-item p {
    margin: 10px 0;
    line-height: 1.6;
    color: var(--light-gray);
}

.info-item a {
    color: var(--accent-gray);
    text-decoration: none;
    font-weight: bold;
}

.info-item a:hover {
    color: var(--light-gray);
}

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

.contact-item {
    padding: 25px;
    background: linear-gradient(135deg, var(--card-bg) 0%, var(--section-bg) 100%);
    border-radius: 15px;
    box-shadow: 0 8px 25px var(--shadow-gray);
    border: 1px solid var(--border-gray);
}

.contact-item h3 {
    font-family: 'Noto Serif JP', serif;
    font-size: 1.4rem;
    color: var(--text-color);
    margin-bottom: 15px;
}

.contact-item p {
    margin: 10px 0;
    color: var(--light-gray);
}

.contact-item a {
    color: var(--accent-gray);
    text-decoration: none;
    font-weight: bold;
}

.contact-item a:hover {
    color: var(--light-gray);
}

.ticket-info {
    text-align: center;
    margin-top: 30px;
}

.ticket-button {
    display: inline-block;
    background: linear-gradient(45deg, var(--secondary-gray), var(--accent-gray));
    color: var(--text-color);
    padding: 15px 35px;
    text-decoration: none;
    font-weight: bold;
    border-radius: 25px;
    transition: all 0.3s ease;
    font-family: 'Noto Serif JP', serif;
    box-shadow: 0 4px 15px var(--shadow-gray);
    border: 2px solid var(--border-gray);
}

.ticket-button:hover {
    background: linear-gradient(45deg, var(--accent-gray), var(--hover-gray));
    color: var(--text-color);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 8px 25px var(--shadow-gray);
    border-color: var(--light-gray);
}

footer {
    background: linear-gradient(135deg, var(--bg-color), var(--section-bg));
    padding: 50px 20px;
    text-align: center;
    color: var(--light-gray);
    border-top: 2px solid var(--border-gray);
}

.sns-links a {
    color: var(--accent-gray);
    font-size: 2rem;
    margin: 0 15px;
    transition: all 0.3s ease;
}

.sns-links a:hover {
    color: var(--light-gray);
    transform: scale(1.2);
}

.copyright {
    margin-top: 30px;
    font-size: 0.9rem;
    color: var(--accent-gray);
}

@media (max-width: 768px) {
    .hero .catchphrase { 
        font-size: 1.8rem; 
    }
    
    .hero .event-title { 
        font-size: 2.5rem; 
    }
    
    .hero .event-subtitle { 
        font-size: 1.5rem; 
    }
    
    .section-title { 
        font-size: 2rem; 
    }
    
    .performer-card, .performer-card:nth-child(even) {
        flex-direction: column;
        text-align: center;
    }
    
    .performer-card img {
        width: 200px;
        height: 200px;
    }
    
    .details-header, .details-data {
        display: block;
        width: auto;
        text-align: center;
    }
    
    .details-header {
        padding-bottom: 5px;
        border-bottom: none;
    }
    
    .details-data {
        padding-top: 0;
        padding-bottom: 20px;
        border-bottom: 1px solid var(--border-gray);
    }
    
    .info-card {
        padding: 20px;
    }
    
    .info-card h2 {
        font-size: 1.8rem;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .info-item {
        padding: 20px;
    }
    
    .info-item h3 {
        font-size: 1.3rem;
    }
    
    .contact-info {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .program-list {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}