:root {
    --color-bg: #030a16;
    --color-text: #f0f4f8;
    --color-text-muted: #a0aec0;
    --color-accent: #e2e8f0;
    --color-glass: rgba(15, 23, 42, 0.4);
    --color-glass-border: rgba(255, 255, 255, 0.1);
    
    --font-mincho: 'Shippori Mincho', serif;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-mincho);
    line-height: 1.8;
    letter-spacing: 0.1em;
    overflow-x: hidden;
}

.fixed-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-image: url('bg.webp');
    background-size: cover;
    background-position: center;
    z-index: -2;
    opacity: 0.15; /* Subtle background */
    pointer-events: none;
}

a {
    color: inherit;
    text-decoration: none;
    transition: opacity 0.3s ease;
}

a:hover {
    opacity: 0.7;
}

ul {
    list-style: none;
}

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

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: var(--spacing-md);
    z-index: 100;
    background: linear-gradient(to bottom, rgba(3, 10, 22, 0.8) 0%, rgba(3, 10, 22, 0) 100%);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.header nav ul {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
}

.header nav a {
    font-size: 0.9rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-bg);
    background-image: url('bg.webp');
    background-size: cover;
    background-position: center;
    z-index: -1;
    opacity: 0.6;
}

@media (min-width: 1025px) {
    .hero-bg {
        background-attachment: fixed;
    }
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 30%;
    background: linear-gradient(to top, var(--color-bg) 0%, rgba(3, 10, 22, 0) 100%);
    z-index: 0;
}

.hero-content {
    text-align: center;
    z-index: 1;
}

.logo {
    font-size: 4rem;
    font-weight: 400;
    letter-spacing: 0.2em;
    margin-bottom: var(--spacing-md);
    text-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
}

.logo-image {
    max-width: 300px;
    width: 80%;
    margin-bottom: var(--spacing-md);
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.5));
}

.catchphrase {
    font-size: 1.1rem;
    color: var(--color-accent);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.8rem;
    letter-spacing: 0.2em;
    animation: bounce 2s infinite;
    opacity: 0.6;
    z-index: 1;
}

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

/* General Sections */
.section {
    padding: var(--spacing-xl) var(--spacing-md);
    min-height: 50vh;
    display: flex;
    align-items: center;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    width: 100%;
}

.section-title {
    font-size: 2rem;
    font-weight: 400;
    letter-spacing: 0.15em;
    margin-bottom: var(--spacing-lg);
    text-align: center;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 40px;
    height: 1px;
    background-color: var(--color-text-muted);
    margin: var(--spacing-sm) auto 0;
}

/* News Section */
.news-list li {
    background: var(--color-glass);
    border: 1px solid var(--color-glass-border);
    border-radius: 8px;
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: transform 0.3s ease, background 0.3s ease;
}

.news-list li:hover {
    transform: translateY(-2px);
    background: rgba(15, 23, 42, 0.6);
}

.news-list time {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    display: block;
    margin-bottom: var(--spacing-xs);
}

.news-detail {
    margin-top: var(--spacing-sm);
    font-size: 0.9rem;
    color: var(--color-text-muted);
    border-top: 1px dashed rgba(255,255,255,0.1);
    padding-top: var(--spacing-sm);
}

.news-detail a {
    text-decoration: underline;
    text-underline-offset: 4px;
    color: var(--color-text);
}

.news-detail a:hover {
    color: var(--color-text-muted);
}

/* Biography Section */
.bio-content p {
    margin-bottom: var(--spacing-md);
    color: var(--color-accent);
}

.bio-content p a {
    text-decoration: underline;
    text-underline-offset: 4px;
    color: var(--color-text);
}

.bio-content p a:hover {
    color: var(--color-text-muted);
}

.members-title {
    font-size: 1.2rem;
    font-weight: 400;
    margin-bottom: var(--spacing-sm);
    margin-top: var(--spacing-lg);
    border-left: 2px solid var(--color-text-muted);
    padding-left: var(--spacing-sm);
}

.members-list li {
    margin-bottom: var(--spacing-xs);
    color: var(--color-accent);
}

/* Live Section */
.live-list li {
    display: flex;
    border-bottom: 1px solid var(--color-glass-border);
    padding: var(--spacing-md) 0;
}

.live-date {
    width: 120px;
    flex-shrink: 0;
    color: var(--color-text-muted);
}

.live-info {
    flex-grow: 1;
}

.live-title {
    font-size: 1.05rem;
    color: var(--color-text);
    margin-bottom: 0.2rem;
}

.live-description {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* Video Section */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
    height: 0;
    overflow: hidden;
    background: var(--color-glass);
    border: 1px solid var(--color-glass-border);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* Contact Section */
.contact-desc {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-muted);
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

.contact-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--color-glass);
    border: 1px solid var(--color-glass-border);
    transition: all 0.3s ease;
}

.contact-icon svg {
    width: 24px;
    height: 24px;
}

.contact-icon:hover {
    background: var(--color-text);
    color: var(--color-bg);
    transform: translateY(-5px);
}

/* Footer */
.footer {
    text-align: center;
    padding: var(--spacing-lg) var(--spacing-md);
    font-size: 0.8rem;
    color: var(--color-text-muted);
    border-top: 1px solid var(--color-glass-border);
}

.zodiac-symbols {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: var(--spacing-md);
    font-size: 1.2rem;
    opacity: 0.5;
    letter-spacing: 0.5rem;
}

.zodiac-symbols span {
    transition: transform 0.3s ease, opacity 0.3s ease;
    cursor: default;
}

.zodiac-symbols span:hover {
    transform: scale(1.2);
    opacity: 1;
    color: var(--color-text);
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 1s ease, transform 1s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 768px) {
    .header nav ul {
        gap: var(--spacing-sm);
    }
    
    .header nav a {
        font-size: 0.8rem;
    }
    
    .logo {
        font-size: 3rem;
    }
    
    .catchphrase {
        font-size: 0.9rem;
    }
    
    .live-list li {
        flex-direction: column;
    }
    
    .live-date {
        margin-bottom: var(--spacing-xs);
    }
}

/* Member SNS Link Styles */
.member-sns {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-left: 0.5rem;
    display: inline-flex;
    align-items: center;
    gap: 0.2rem;
    opacity: 0.7;
    transition: opacity 0.3s ease, color 0.3s ease;
    vertical-align: middle;
}

.member-sns:hover {
    color: var(--color-text);
    opacity: 1;
}

.member-sns svg {
    width: 14px;
    height: 14px;
    stroke: currentColor;
    fill: none;
}