@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;700;900&family=Noto+Serif+JP:wght@400;700;900&family=Bebas+Neue&family=Oswald:wght@700&family=Inter:wght@400;700&family=Roboto+Mono:wght@400;700&display=swap');

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

body {
    font-family: 'Noto Sans JP', 'Inter', sans-serif;
    background-color: #2b2d42;
    color: #e5e5e5;
    line-height: 1.9;
    overflow-x: hidden;
    background-image: url('suitcase_texture.png');
    background-size: cover;
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-position: center;
}

.container {
    max-width: 100%;
    margin: 0 auto;
    position: relative;
}

.container::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 3px,
            rgba(192, 192, 192, 0.08) 3px,
            rgba(192, 192, 192, 0.08) 4px,
            transparent 4px,
            transparent 8px,
            rgba(212, 212, 212, 0.05) 8px,
            rgba(212, 212, 212, 0.05) 9px
        );
    pointer-events: none;
    z-index: 1000;
    opacity: 0.6;
}

/* KV Section */
.kv-section {
    width: 100%;
    background: linear-gradient(135deg, rgba(20, 33, 61, 0.5) 0%, rgba(26, 26, 29, 0.5) 100%);
    position: relative;
    padding: 0;
    box-shadow: inset 0 0 100px rgba(0, 0, 0, 0.3);
}

.kv-image {
    width: 100%;
    height: auto;
    display: block;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    position: relative;
    filter: contrast(1.1) brightness(0.85);
}

/* Hero Section */
.hero-section {
    background: linear-gradient(180deg, rgba(20, 33, 61, 0.5) 0%, rgba(26, 26, 29, 0.5) 100%);
    padding: 80px 40px;
    text-align: center;
    position: relative;
    border-bottom: 3px solid #7251a8;
    box-shadow:
        inset 0 0 100px rgba(0, 0, 0, 0.3),
        0 1px 0 rgba(192, 192, 192, 0.2);
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: #333;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-text {
    font-size: 1.4rem;
    font-weight: 400;
    color: #d4d4d4;
    margin-bottom: 40px;
    letter-spacing: 0.08em;
    text-shadow: 0 0 30px rgba(114, 81, 168, 0.6);
    opacity: 0.95;
    font-family: 'Noto Sans JP', sans-serif;
}

.title {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.title-main {
    font-size: 1.2rem;
    font-weight: 700;
    color: #c0c0c0;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    font-family: 'Oswald', 'Bebas Neue', 'Noto Sans JP', sans-serif;
}

.title-event {
    font-size: 3rem;
    font-weight: 900;
    color: #f5f5f5;
    letter-spacing: 0.08em;
    text-shadow:
        3px 3px 0 #5e4b8b,
        0 0 50px rgba(114, 81, 168, 0.6),
        0 0 80px rgba(94, 75, 139, 0.3);
    font-family: 'Noto Serif JP', 'Yu Mincho', 'YuMincho', 'Hiragino Mincho ProN', serif;
}

.ruby {
    font-size: 1rem;
    font-weight: 400;
    color: #c0c0c0;
}

.event-date {
    font-size: 1.2rem;
    color: #d4d4d4;
    margin-top: 40px;
    margin-bottom: 40px;
    letter-spacing: 0.08em;
    font-family: 'Roboto Mono', 'Courier New', monospace;
}

/* Ticket Button */
.ticket-button {
    display: inline-block;
    width: 250px;
    height: 120px;
    background-image: url('ticket_button.png');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    text-indent: -9999px;
    overflow: hidden;
    border: none;
    transition: all 0.3s ease;
    filter: drop-shadow(0 4px 10px rgba(0, 0, 0, 0.4));
}

.ticket-button:hover {
    transform: translateY(-2px) scale(1.05);
    filter: drop-shadow(0 6px 15px rgba(0, 0, 0, 0.6)) brightness(1.1);
}

/* Arasuji Section */
.arasuji-section {
    width: 100%;
    background: linear-gradient(135deg, rgba(15, 20, 25, 0.5) 0%, rgba(26, 26, 29, 0.5) 100%);
    padding: 60px 40px;
    position: relative;
    box-shadow: inset 0 0 100px rgba(0, 0, 0, 0.3);
}

.arasuji-section::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 20px;
    right: 20px;
    bottom: 40px;
    border: 2px solid #c0c0c0;
    pointer-events: none;
    box-shadow:
        inset 0 0 30px rgba(94, 75, 139, 0.2),
        0 0 20px rgba(0, 0, 0, 0.5);
    opacity: 0.4;
}

.arasuji-image {
    width: 100%;
    height: auto;
    display: block;
    max-width: 1400px;
    margin: 0 auto;
    border: 4px solid #c0c0c0;
    box-shadow:
        inset 0 0 0 8px #14213d,
        0 0 40px rgba(114, 81, 168, 0.4),
        0 0 2px rgba(192, 192, 192, 0.3);
    filter: contrast(1.1) brightness(0.85);
}

/* Video Section */
.video-section {
    width: 100%;
    background: linear-gradient(135deg, rgba(20, 33, 61, 0.5) 0%, rgba(43, 45, 66, 0.5) 100%);
    padding: 80px 40px;
    position: relative;
}

.video-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background:
        repeating-linear-gradient(
            90deg,
            #7251a8 0px,
            #7251a8 4px,
            #c0c0c0 4px,
            #c0c0c0 5px,
            transparent 5px,
            transparent 8px
        );
    opacity: 0.7;
    box-shadow: 0 0 10px rgba(114, 81, 168, 0.5);
}

.video-section::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100%;
    background: radial-gradient(ellipse at center, transparent 0%, rgba(15, 20, 25, 0.4) 100%);
    pointer-events: none;
}

.video-container {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    padding: 40px;
    background: linear-gradient(135deg, rgba(15, 20, 25, 0.5) 0%, rgba(20, 33, 61, 0.5) 100%);
    box-shadow:
        inset 0 0 50px rgba(0, 0, 0, 0.3),
        0 0 40px rgba(0, 0, 0, 0.5);
}

.video-container::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 20px;
    right: 20px;
    bottom: 20px;
    border: 2px solid #c0c0c0;
    pointer-events: none;
    box-shadow:
        inset 0 0 30px rgba(94, 75, 139, 0.2),
        0 0 10px rgba(0, 0, 0, 0.5);
    opacity: 0.5;
}

.video-container::after {
    content: '';
    position: absolute;
    top: 40px;
    left: 40px;
    right: 40px;
    bottom: 40px;
    border: 4px solid #c0c0c0;
    pointer-events: none;
    box-shadow:
        inset 0 0 0 8px #14213d,
        0 0 40px rgba(114, 81, 168, 0.4),
        0 0 2px rgba(192, 192, 192, 0.3);
}

.video-frame {
    width: 100%;
    aspect-ratio: 16 / 9;
    display: block;
    position: relative;
    z-index: 1;
    border: none;
}

/* Section Title */
.section-title {
    font-size: 2rem;
    font-weight: 700;
    color: #e5e5e5;
    text-align: center;
    padding: 60px 0 40px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    position: relative;
    text-shadow:
        0 0 40px rgba(114, 81, 168, 0.8),
        0 2px 6px rgba(0, 0, 0, 0.9);
    font-family: 'Oswald', 'Bebas Neue', 'Noto Sans JP', sans-serif;
}

.section-title::before,
.section-title::after {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, transparent 0%, #7251a8 50%, transparent 100%);
    box-shadow: 0 0 15px rgba(114, 81, 168, 0.6);
}

.section-title::before {
    top: 40px;
}

.section-title::after {
    bottom: 20px;
}

/* Flow Section */
.flow-section {
    background: linear-gradient(180deg, rgba(43, 45, 66, 0.5) 0%, rgba(26, 26, 29, 0.5) 100%);
    padding: 60px 40px;
    position: relative;
}

.flow-image {
    width: 100%;
    height: auto;
    display: block;
    max-width: 1400px;
    margin: 0 auto;
    border: 4px solid #c0c0c0;
    box-shadow:
        inset 0 0 0 8px rgba(20, 33, 61, 0.5),
        0 0 40px rgba(114, 81, 168, 0.4),
        0 0 2px rgba(192, 192, 192, 0.3);
    filter: contrast(1.1) brightness(0.85);
}

.flow-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background:
        repeating-linear-gradient(
            90deg,
            #7251a8 0px,
            #7251a8 4px,
            #c0c0c0 4px,
            #c0c0c0 5px,
            transparent 5px,
            transparent 8px
        );
    opacity: 0.7;
    box-shadow: 0 0 10px rgba(114, 81, 168, 0.5);
}

.flow-section::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100%;
    background:
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 50px,
            rgba(94, 75, 139, 0.05) 50px,
            rgba(94, 75, 139, 0.05) 51px
        );
    pointer-events: none;
}

.flow-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.flow-item {
    background: linear-gradient(135deg, rgba(20, 33, 61, 0.5) 0%, rgba(15, 20, 25, 0.5) 100%);
    border: 2px solid #c0c0c0;
    padding: 40px 30px;
    text-align: center;
    position: relative;
    transition: all 0.3s ease;
    box-shadow:
        inset 0 1px 0 rgba(192, 192, 192, 0.1),
        inset 0 -1px 0 rgba(0, 0, 0, 0.5);
    border-radius: 4px;
}

.flow-item:hover {
    background: linear-gradient(135deg, rgba(26, 39, 68, 0.6) 0%, rgba(20, 33, 61, 0.6) 100%);
    border-color: #7251a8;
    box-shadow:
        inset 0 1px 0 rgba(192, 192, 192, 0.2),
        inset 0 -1px 0 rgba(0, 0, 0, 0.8),
        0 0 30px rgba(114, 81, 168, 0.4);
}

.flow-item::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: repeating-linear-gradient(
        45deg,
        transparent,
        transparent 10px,
        #7251a8 10px,
        #7251a8 11px
    );
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
    border-radius: 4px;
}

.flow-item:hover::before {
    opacity: 0.6;
}

.flow-number {
    font-size: 4rem;
    font-weight: 900;
    color: #9d7cd8;
    font-family: 'Roboto Mono', 'Courier New', monospace;
    margin-bottom: 20px;
    text-shadow:
        3px 3px 0 rgba(94, 75, 139, 0.5),
        0 0 40px rgba(114, 81, 168, 0.9),
        0 2px 6px rgba(0, 0, 0, 0.9);
}

.flow-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: #e5e5e5;
    letter-spacing: 0.08em;
    font-family: 'Noto Sans JP', sans-serif;
}

/* Features Section */
.features-section {
    background: linear-gradient(180deg, rgba(26, 26, 29, 0.5) 0%, rgba(20, 33, 61, 0.5) 100%);
    padding: 0 40px 80px;
}

.feature-item {
    max-width: 900px;
    margin: 0 auto 50px;
    border-left: 4px solid #7251a8;
    padding: 30px;
    padding-left: 30px;
    position: relative;
    background: linear-gradient(135deg, rgba(10, 10, 10, 0.7) 0%, rgba(20, 33, 61, 0.6) 100%);
    border-radius: 4px;
}

.feature-item::before {
    content: '';
    position: absolute;
    left: -4px;
    top: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(to bottom, #7251a8 0%, transparent 100%);
    opacity: 0.8;
    box-shadow: 0 0 15px rgba(114, 81, 168, 0.6);
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #9d7cd8;
    margin-bottom: 20px;
    letter-spacing: 0.08em;
    text-shadow:
        0 0 30px rgba(114, 81, 168, 0.8),
        0 2px 4px rgba(0, 0, 0, 0.8);
    font-family: 'Noto Sans JP', sans-serif;
}

.feature-content p {
    font-size: 1rem;
    color: #f5f5f5;
    margin-bottom: 10px;
    line-height: 1.9;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.8);
}

/* Info Section */
.info-section {
    background: linear-gradient(180deg, rgba(20, 33, 61, 0.5) 0%, rgba(43, 45, 66, 0.5) 100%);
    padding: 0 40px 80px;
}

.info-grid {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.info-item {
    background: linear-gradient(135deg, rgba(10, 10, 10, 0.5) 0%, rgba(0, 0, 0, 0.5) 100%);
    border: 1px solid #333;
    padding: 25px 30px;
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: 20px;
    align-items: start;
    box-shadow:
        inset 0 1px 0 rgba(192, 192, 192, 0.08),
        inset 0 -1px 0 rgba(0, 0, 0, 0.5);
    position: relative;
}

.info-item::after {
    content: '';
    position: absolute;
    right: 0;
    top: 0;
    width: 2px;
    height: 100%;
    background: linear-gradient(to bottom, transparent 0%, #7251a8 50%, transparent 100%);
    opacity: 0.3;
}

.info-label {
    font-size: 1rem;
    font-weight: 700;
    color: #9d7cd8;
    letter-spacing: 0.08em;
    text-shadow:
        0 0 25px rgba(114, 81, 168, 0.8),
        0 2px 4px rgba(0, 0, 0, 0.8);
    font-family: 'Noto Sans JP', sans-serif;
}

.info-value {
    font-size: 1rem;
    color: #e0e0e0;
    line-height: 1.8;
}

.info-note {
    font-size: 0.9rem;
    color: #999;
    display: block;
    margin-top: 5px;
}

/* Pricing Section */
.pricing-section {
    background: linear-gradient(180deg, rgba(43, 45, 66, 0.5) 0%, rgba(26, 26, 29, 0.5) 100%);
    padding: 0 40px 80px;
}

.pricing-table {
    max-width: 700px;
    margin: 0 auto 50px;
}

.pricing-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: #9d7cd8;
    margin-bottom: 20px;
    letter-spacing: 0.08em;
    text-shadow:
        0 0 30px rgba(114, 81, 168, 0.8),
        0 2px 4px rgba(0, 0, 0, 0.8);
    font-family: 'Noto Sans JP', sans-serif;
}

.price-table {
    width: 100%;
    border-collapse: collapse;
    background: linear-gradient(135deg, rgba(15, 15, 15, 0.5) 0%, rgba(26, 26, 26, 0.5) 100%);
    box-shadow:
        inset 0 1px 0 rgba(192, 192, 192, 0.1),
        0 2px 10px rgba(0, 0, 0, 0.5);
}

.price-table tr {
    border-bottom: 1px solid #333;
    transition: background 0.3s ease;
}

.price-table tr:hover {
    background: rgba(90, 104, 115, 0.05);
}

.price-table tr:last-child {
    border-bottom: none;
}

.price-label,
.price-value {
    padding: 20px 25px;
    font-size: 1.1rem;
}

.price-label {
    color: #e0e0e0;
    font-weight: 400;
    width: 40%;
}

.price-value {
    color: #9d7cd8;
    font-weight: 900;
    font-family: 'Roboto Mono', 'Courier New', monospace;
    text-align: right;
    font-size: 1.5rem;
    text-shadow:
        0 0 30px rgba(114, 81, 168, 0.9),
        0 2px 4px rgba(0, 0, 0, 0.8);
}

/* Attention Section */
.attention-section {
    background: linear-gradient(180deg, rgba(26, 26, 29, 0.5) 0%, rgba(20, 33, 61, 0.5) 100%);
    padding: 0 40px 80px;
}

.attention-block {
    max-width: 900px;
    margin: 0 auto 40px;
}

.attention-subtitle {
    font-size: 1.3rem;
    font-weight: 700;
    color: #9d7cd8;
    margin-bottom: 20px;
    letter-spacing: 0.08em;
    padding-left: 20px;
    border-left: 4px solid #7251a8;
    text-shadow:
        0 0 30px rgba(114, 81, 168, 0.8),
        0 2px 4px rgba(0, 0, 0, 0.8);
    font-family: 'Noto Sans JP', sans-serif;
}

.attention-list {
    list-style: none;
    padding-left: 24px;
}

.attention-list li {
    font-size: 1rem;
    color: #e0e0e0;
    margin-bottom: 15px;
    padding-left: 25px;
    position: relative;
    line-height: 1.8;
}

.attention-list li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: #9d7cd8;
    font-size: 1.2rem;
    text-shadow:
        0 0 25px rgba(114, 81, 168, 0.8),
        0 2px 4px rgba(0, 0, 0, 0.8);
}

/* Credits Section */
.credits-section {
    background: linear-gradient(180deg, rgba(20, 33, 61, 0.5) 0%, rgba(15, 20, 25, 0.5) 100%);
    padding: 0 40px 100px;
    border-top: 4px solid #7251a8;
    box-shadow:
        inset 0 4px 30px rgba(114, 81, 168, 0.3),
        0 -1px 0 rgba(192, 192, 192, 0.2);
}

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

.credits-content p {
    font-size: 0.95rem;
    color: #999;
    margin-bottom: 12px;
    letter-spacing: 0.05em;
    line-height: 1.8;
}

/* Fixed Ticket Button */
.fixed-ticket-button {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 200px;
    height: 96px;
    background-image: url('ticket_button.png');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    text-indent: -9999px;
    overflow: hidden;
    border: none;
    transition: all 0.3s ease;
    z-index: 2000;
    filter: drop-shadow(0 4px 15px rgba(0, 0, 0, 0.5));
}

.fixed-ticket-button:hover {
    transform: translateY(-4px) scale(1.08);
    filter: drop-shadow(0 8px 25px rgba(0, 0, 0, 0.7)) brightness(1.1);
}

/* Responsive Design */
@media (max-width: 768px) {
    .kv-section {
        padding: 0;
    }

    .arasuji-section {
        padding: 40px 20px;
    }

    .arasuji-section::before {
        top: 30px;
        left: 10px;
        right: 10px;
        bottom: 30px;
    }

    .arasuji-image {
        border-width: 3px;
        box-shadow:
            inset 0 0 0 6px #14213d,
            0 0 30px rgba(114, 81, 168, 0.4),
            0 0 2px rgba(192, 192, 192, 0.3);
    }

    .video-section {
        padding: 60px 20px;
    }

    .video-container {
        padding: 20px;
    }

    .video-container::before {
        top: 10px;
        left: 10px;
        right: 10px;
        bottom: 10px;
    }

    .video-container::after {
        top: 20px;
        left: 20px;
        right: 20px;
        bottom: 20px;
        border-width: 3px;
        box-shadow:
            inset 0 0 0 6px #14213d,
            0 0 30px rgba(114, 81, 168, 0.4),
            0 0 2px rgba(192, 192, 192, 0.3);
    }

    .hero-section {
        padding: 60px 20px;
    }

    .hero-text {
        font-size: 1.1rem;
    }

    .title-event {
        font-size: 2rem;
    }

    .event-date {
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.5rem;
        padding: 40px 0 30px;
    }

    .flow-section,
    .features-section,
    .info-section,
    .pricing-section,
    .attention-section,
    .credits-section {
        padding-left: 20px;
        padding-right: 20px;
    }

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

    .info-item {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .flow-number {
        font-size: 3rem;
    }

    .flow-title {
        font-size: 1rem;
    }

    .feature-title {
        font-size: 1.2rem;
    }

    .feature-content p {
        font-size: 0.95rem;
    }

    .pricing-title {
        font-size: 1.1rem;
    }

    .price-label,
    .price-value {
        padding: 15px 20px;
        font-size: 1rem;
    }

    .price-value {
        font-size: 1.3rem;
    }

    .attention-subtitle {
        font-size: 1.1rem;
    }

    .attention-list li {
        font-size: 0.9rem;
    }

    .credits-content p {
        font-size: 0.85rem;
    }

    .ticket-button {
        width: 200px;
        height: 96px;
    }

    .fixed-ticket-button {
        bottom: 20px;
        right: 20px;
        width: 160px;
        height: 77px;
    }
}