:root {
    --color-primary: #007bff;
    --color-primary-dark: #0056b3;
    --color-primary-accent: #007bff;
    --color-text-dark: #1c2a38;
    --color-text-medium: #555;
    --color-text-light: #576c7f;
    --color-text-xlight: #888;
    --color-background-light: #f8fbfc;
    --color-white: #ffffff;
    --color-border: #dce4f0;
    --color-border-light: #eef2f7;
    --color-success: #28a745;
    --color-danger: #e74c3c;
    --color-dark-blue: #1c2a38;
    --color-discord: #5865F2; /* Discord Brand Color */
    --color-discord-dark: #4752C4;
    --font-family-base: 'Noto Sans JP', 'Hiragino Sans', 'Meiryo', sans-serif;
    --font-size-base: 1rem;
    --line-height-base: 1.8;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    --spacing-md: 1rem;
    --spacing-lg: 1.25rem;
    --spacing-xl: 1.5625rem;
    --spacing-xxl: 1.875rem;
    --spacing-xxxl: 2.8rem;
    --spacing-xxxxl: 3.5rem;
    --spacing-huge: 4rem;
    --spacing-giant: 5rem;
    --spacing-hero-padding-y: 6rem;
    --shadow-sm: 0 4px 10px rgba(0,0,0,0.06);
    --shadow-md: 0 8px 25px rgba(0, 123, 255, 0.1);
    --shadow-lg: 0 16px 40px rgba(0, 111, 230, 0.15);
    --shadow-xl: 0 12px 40px rgba(0, 111, 230, 0.22);
    --shadow-header: 0 4px 12px rgba(0,0,0,0.05);
    --border-radius-sm: 3px;
    --border-radius-md: 12px;
    --border-radius-lg: 16px;
    --border-radius-full: 50px;
    --transition-speed: 0.3s;
    --transition-timing: cubic-bezier(0.25, 0.8, 0.25, 1);
}

*, *::before, *::after {
    box-sizing: border-box;
}

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

body {
    margin: 0;
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--color-text-dark);
    background-color: var(--color-background-light);
    background-image: radial-gradient(circle at top, #ffffff 0%, var(--color-background-light) 100%);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    cursor: none;
}

a, button, [role="button"], summary, .feature-item, .discord-join-btn {
    cursor: none;
}

a {
    color: var(--color-primary);
    text-decoration: none;
}

a:hover {
    color: var(--color-primary-dark);
}

.site-header {
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(10px);
    color: var(--color-text-dark);
    padding: 1.2rem 0;
    box-shadow: var(--shadow-header);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--color-border);
}

.header-content {
    max-width: 75rem;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 var(--spacing-xl);
}

.site-title {
    margin: 0;
    font-size: 1.8rem;
    font-weight: var(--font-weight-extrabold);
    letter-spacing: 1px;
}

.site-title a {
    color: var(--color-text-dark);
}

.site-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
}

.site-nav ul li {
    margin-left: var(--spacing-xxl);
}

.site-nav ul li a {
    color: var(--color-text-medium);
    font-weight: var(--font-weight-bold);
    padding: 0.5rem 0;
    position: relative;
    font-size: 1.05rem;
}

.site-nav ul li a:hover {
    color: var(--color-text-dark);
}

.site-nav ul li a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -6px;
    width: 100%;
    height: 3px;
    background-color: var(--color-primary);
    border-radius: var(--border-radius-sm);
    transform: scaleX(0);
    transform-origin: left;
}

.site-nav ul li a:hover::after {
    transform: scaleX(1);
}

.menu-toggle {
    display: none;
    font-size: 1.8rem;
    color: var(--color-text-dark);
    background: none;
    border: none;
    padding: 0;
}

.main-content {
    max-width: 75rem;
    margin: var(--spacing-huge) auto;
    padding: 0 var(--spacing-xl);
}

/* Hero Section Tweaks */
.hero-section {
    background: var(--color-white);
    text-align: center;
    padding: var(--spacing-hero-padding-y) var(--spacing-xxxl);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-giant);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border-light);
    position: relative;
    overflow: hidden;
}

.hero-bg-decoration {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0,123,255,0.03) 0%, rgba(255,255,255,0) 70%);
    z-index: 0;
    pointer-events: none;
}

.hero-text {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 56.25rem;
    margin: 0 auto;
}

.hero-text h2 {
    font-size: 3.2rem;
    line-height: 1.3;
    margin-top: 0;
    margin-bottom: var(--spacing-lg);
    font-weight: var(--font-weight-extrabold);
    color: var(--color-text-dark);
}

.hero-text p {
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-xxxl);
    color: var(--color-text-light);
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    justify-content: center;
}

.button-primary, .button-secondary {
     display: inline-block;
     padding: 0.9rem 2.2rem;
     border-radius: var(--border-radius-full);
     font-size: 1.1rem;
     font-weight: var(--font-weight-bold);
     border: 1px solid transparent;
}

.button-primary {
    background-color: var(--color-primary-accent);
    color: var(--color-white);
    box-shadow: 0 4px 15px rgba(0, 123, 255, 0.25);
}

.button-primary:hover {
    background-color: var(--color-primary-dark);
    color: var(--color-white);
}

.button-secondary {
    background-color: var(--color-white);
    color: var(--color-primary);
    border-color: var(--color-border);
}

.button-secondary:hover {
    border-color: var(--color-primary);
}

.content-section {
    background-color: var(--color-white);
    padding: var(--spacing-xxxxl);
    margin-bottom: var(--spacing-huge);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    border: 1px solid var(--color-border-light);
}

.section-title {
    font-size: 2.8rem;
    color: var(--color-text-dark);
    margin-bottom: var(--spacing-xxxl);
    font-weight: var(--font-weight-extrabold);
    position: relative;
    display: inline-block;
    padding-bottom: var(--spacing-md);
}

.section-title::after {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 0;
    width: 80px;
    height: 4px;
    background-color: var(--color-primary);
    border-radius: 3px;
}

.section-title.left-align::after {
    left: 0;
    transform: none;
}

.section-description {
    font-size: 1.2rem;
    max-width: 56.25rem;
    margin: 0 auto var(--spacing-xxxl) auto;
    color: var(--color-text-medium);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(18.75rem, 1fr));
    gap: var(--spacing-xxxl);
    margin-top: var(--spacing-xxxxl);
}

.feature-item {
    background-color: var(--color-white);
    padding: 2.5rem;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-md);
    text-align: center;
    border: 1px solid var(--color-border-light);
}

.feature-item:hover {
    border-color: var(--color-primary);
}

.feature-item .feature-icon {
    font-size: 3.5rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
    text-shadow: 0 4px 15px rgba(0, 123, 255, 0.2);
}

.feature-item h3 {
    font-size: 1.8rem;
    color: var(--color-text-dark);
    margin-bottom: 1.125rem;
    font-weight: var(--font-weight-bold);
}

/* Discord Section Styles */
.discord-section {
    background: linear-gradient(135deg, #ffffff 0%, #f4f6fb 100%);
}

.discord-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--spacing-xxl);
    text-align: left;
}

.discord-info {
    flex: 1;
    min-width: 300px;
}

.discord-info p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
    font-size: 1.1rem;
}

.server-stats-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    margin-top: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    display: inline-block;
    width: 100%;
    max-width: 400px;
}

.stats-header {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-md);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-dark);
    font-size: 1.2rem;
}

.stats-header i {
    color: var(--color-discord);
    margin-right: 10px;
    font-size: 1.5rem;
}

.stats-body {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.stat-item {
    display: flex;
    align-items: center;
    background: rgba(40, 167, 69, 0.1);
    padding: 8px 16px;
    border-radius: 20px;
}

.stat-item .dot {
    width: 10px;
    height: 10px;
    background-color: var(--color-success);
    border-radius: 50%;
    margin-right: 8px;
    box-shadow: 0 0 5px var(--color-success);
}

.stat-item .count {
    font-weight: var(--font-weight-bold);
    margin-right: 5px;
    font-size: 1.1rem;
}

.stat-item .label {
    font-size: 0.9rem;
    color: var(--color-text-medium);
}

.discord-join-btn {
    background-color: var(--color-discord);
    color: white;
    padding: 8px 20px;
    border-radius: 20px;
    font-weight: bold;
    transition: background-color 0.3s;
    font-size: 0.95rem;
    text-align: center;
}

.discord-join-btn:hover {
    background-color: var(--color-discord-dark);
    color: white;
}

.discord-widget-wrapper {
    flex: 0 0 350px;
    max-width: 100%;
    display: flex;
    justify-content: center;
}

.discord-widget-wrapper iframe {
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-md);
}

/* FAQ Styles */
.faq-container {
    max-width: 50rem;
    margin: 0 auto;
    text-align: left;
}
.faq-item {
    background-color: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-md);
}
.faq-item:hover {
    border-color: var(--color-primary);
}
.faq-question {
    font-size: 1.2rem;
    font-weight: var(--font-weight-bold);
    padding: var(--spacing-lg) var(--spacing-xl);
    display: block;
    position: relative;
    padding-right: 3rem;
}
.faq-question::-webkit-details-marker { display: none; }
.faq-question::after {
    content: '\f078';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    right: var(--spacing-xl);
    top: 50%;
}
.faq-answer {
    padding: 0 var(--spacing-xl) var(--spacing-lg);
    color: var(--color-text-medium);
    border-top: 1px solid var(--color-border-light);
}
.faq-answer p {
    margin: var(--spacing-lg) 0 0;
}

.site-footer {
    background-color: var(--color-dark-blue);
    color: #aeb9c4;
    padding: var(--spacing-xxxl) 0;
    text-align: center;
    font-size: var(--font-size-base);
    margin-top: var(--spacing-huge);
}

.footer-content {
    max-width: 75rem;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.footer-content p {
    margin: 0;
    line-height: 1.5;
    color: #e0e0e0;
}

.footer-links {
    display: flex;
    gap: var(--spacing-xl);
}

.footer-links a {
    color: #a0c0e0;
}

.footer-links a:hover {
    color: var(--color-white);
}

.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background-color: var(--color-primary);
    color: var(--color-white);
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    z-index: 100;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
}
.back-to-top.show {
    opacity: 1;
    visibility: visible;
}
.back-to-top:hover {
    background-color: var(--color-primary-dark);
    color: var(--color-white);
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .cursor, .cursor-follower {
        display: none;
    }
    #loader-content {
        font-size: 1.8rem;
    }
    .discord-container {
        flex-direction: column;
        align-items: center;
    }
    .discord-info {
        text-align: center;
        width: 100%;
    }
    .section-title.left-align::after {
        left: 50%;
        transform: translateX(-50%);
    }
    .server-stats-card {
        margin: var(--spacing-lg) auto;
    }
}

@media (max-width: 48em) {
    .header-content { flex-wrap: wrap; }
    .site-title { font-size: 1.6rem; }
    .site-nav {
        width: 100%;
        max-height: 0;
        overflow: hidden;
        flex-basis: 100%;
        order: 3;
        background-color: var(--color-white);
    }
    .site-nav.nav-open {
        max-height: 25rem;
        border-top: 1px solid var(--color-border-light);
        margin-top: 0.8rem;
    }
    .site-nav ul { flex-direction: column; width: 100%; }
    .site-nav ul li { margin: 0; width: 100%; border-bottom: 1px solid var(--color-border-light); }
    .site-nav ul li:last-child { border-bottom: none; }
    .site-nav ul li a { display: block; padding: 1rem; text-align: center; }
    .site-nav ul li a::after { display: none; }
    .site-nav ul li a:hover { background-color: var(--color-background-light); color: var(--color-primary); }
    .menu-toggle { display: block; order: 2; }
    .hero-section { padding: 4rem var(--spacing-md); }
    .hero-text h2 { font-size: 2.5rem; }
    .hero-text p { font-size: 1rem; margin-bottom: var(--spacing-xxl); }
    .hero-buttons { flex-direction: column; gap: var(--spacing-md); width: 100%; align-items: center; }
    .button-primary, .button-secondary { width: 90%; max-width: 18.75rem; }
    .main-content { padding: 0 var(--spacing-md); margin-top: var(--spacing-xl); }
    .content-section { padding: var(--spacing-xxxl) var(--spacing-xl); margin-bottom: var(--spacing-xxxl); }
    .section-title { font-size: 2.2rem; }
    .features-grid { grid-template-columns: 1fr; gap: var(--spacing-xxl); }
    .feature-item h3 { font-size: 1.5rem; }
    .footer-content { flex-direction: column; gap: var(--spacing-md); }
    .back-to-top { width: 3rem; height: 3rem; font-size: 1.2rem; bottom: 1rem; right: 1rem; }
}

@media (max-width: 30em) {
    .site-title { font-size: 1.5rem; }
    .menu-toggle { font-size: 1.6rem; }
    .hero-section { padding: 3rem 1.2rem; }
    .hero-text h2 { font-size: 2rem; }
    .section-title { font-size: 1.8rem; }
    
    /* iframe mobile adjustment */
    .discord-widget-wrapper {
        flex-basis: auto;
        width: 100%;
        overflow: hidden;
    }
    .discord-widget-wrapper iframe {
        max-width: 100%;
    }
}