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

body {
    background-color: #181a20;
    color: #e0e0e0;
    font-family: 'Inter', system_ui, sans-serif;
    line-height: 1.7;
    overflow-x: hidden;
}

header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(24, 26, 32, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid #23252e;
}

.header-content {
    max-width: 1280px;
    margin: 0 auto;
    padding: 1.1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.logo {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.85rem;
    font-weight: 600;
    letter-spacing: -1.2px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: #2777ff;
}

.logo-dot {
    display: inline-block;
    width: 13px;
    height: 13px;
    background: #2777ff;
    border-radius: 50%;
    box-shadow: 0 0 22px #2777ff;
}

nav a {
    color: #bbb;
    text-decoration: none;
    margin: 0 1.25rem;
    font-weight: 500;
    transition: color 0.3s ease;
}

nav a:hover {
    color: #2777ff;
}

.login-btn {
    background: #2777ff;
    color: white;
    padding: 11px 26px;
    border-radius: 9999px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.login-btn:hover {
    background: #1e5ed9;
    transform: translateY(-2px);
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: radial-gradient(circle at center, #23252e 0%, #181a20 72%);
}

.black-hole {
    width: 440px;
    height: 440px;
    border-radius: 50%;
    background: radial-gradient(circle at 38% 38%, rgba(39, 119, 255, 0.18) 0%, transparent 65%);
    border: 3px solid rgba(39, 119, 255, 0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 90px rgba(39, 119, 255, 0.28), inset 0 0 70px rgba(0,0,0,0.95);
    transition: transform 0.6s ease;
}

.black-hole:hover {
    transform: scale(1.03);
}

.black-hole-core {
    text-align: center;
    z-index: 2;
    padding: 20px;
}

.black-hole-core h1 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 4.1rem;
    font-weight: 600;
    letter-spacing: -3.5px;
    color: white;
    margin-bottom: 14px;
    line-height: 1.1;
}

.tagline {
    font-size: 1.32rem;
    color: #aaa;
    margin-bottom: 42px;
    line-height: 1.45;
    max-width: 420px;
}

.enter-btn {
    display: inline-block;
    background: transparent;
    color: #2777ff;
    border: 2px solid #2777ff;
    padding: 15px 46px;
    border-radius: 9999px;
    font-size: 1.15rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.4s ease;
}

.enter-btn:hover {
    background: #2777ff;
    color: white;
    box-shadow: 0 0 35px rgba(39, 119, 255, 0.65);
}

.scroll-hint {
    position: absolute;
    bottom: 48px;
    left: 50%;
    transform: translateX(-50%);
    color: #666;
    font-size: 0.95rem;
    letter-spacing: 3px;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

.section {
    padding: 130px 2rem 110px;
    max-width: 1280px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 70px;
}

.section-header h2 {
    font-size: 2.85rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: white;
    line-height: 1.2;
}

.intro-text {
    max-width: 780px;
    margin: 0 auto 60px;
    font-size: 1.22rem;
    color: #bbb;
    text-align: center;
}

.content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.content-grid.reverse {
    grid-template-columns: 1fr 1fr;
}

.text-block h3 {
    font-size: 1.65rem;
    margin: 32px 0 16px;
    color: #2777ff;
}

.stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.stat-item {
    background: #23252e;
    padding: 26px 28px;
    border-radius: 16px;
    border: 1px solid #2a2d38;
    transition: transform 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-4px);
}

.stat-item strong {
    display: block;
    font-size: 2.2rem;
    color: #2777ff;
    margin-bottom: 6px;
    font-weight: 600;
}

.image-container {
    display: flex;
    gap: 32px;
    justify-content: center;
    flex-wrap: wrap;
}

.preview-img {
    border-radius: 18px;
    box-shadow: 0 25px 70px rgba(0, 0, 0, 0.7);
    border: 1px solid #2a2d38;
    max-width: 100%;
    height: auto;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.preview-img:hover {
    transform: scale(1.025);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.8);
}

.preview-img.large {
    max-width: 940px;
}

.academy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 30px;
}

.academy-card {
    background: #23252e;
    padding: 40px 34px;
    border-radius: 16px;
    border: 1px solid #2a2d38;
    transition: all 0.3s ease;
}

.academy-card:hover {
    border-color: #2777ff;
    transform: translateY(-6px);
}

.academy-card h3 {
    color: #2777ff;
    margin-bottom: 20px;
    font-size: 1.55rem;
}

.mirrors-section {
    background: #23252e;
}

.mirrors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 22px;
    max-width: 940px;
    margin: 0 auto 40px;
}

.mirror-link {
    background: #181a20;
    color: #2777ff;
    padding: 22px 28px;
    border-radius: 14px;
    text-decoration: none;
    font-family: monospace;
    font-size: 1.08rem;
    border: 1px solid #2a2d38;
    transition: all 0.3s ease;
    display: block;
    word-break: break-all;
}

.mirror-link:hover {
    border-color: #2777ff;
    background: rgba(39, 119, 255, 0.1);
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(39, 119, 255, 0.15);
}

.warning {
    text-align: center;
    color: #777;
    font-size: 1rem;
    max-width: 680px;
    margin: 0 auto;
}

footer {
    text-align: center;
    padding: 90px 20px 60px;
    color: #666;
    border-top: 1px solid #23252e;
}

.small {
    margin-top: 16px;
    font-size: 0.9rem;
}

.keywords-seo {
    margin-top: 32px;
    font-size: 0.82rem;
    color: #444;
    letter-spacing: 0.6px;
}

@media (max-width: 1024px) {
    .black-hole {
        width: 380px;
        height: 380px;
    }
    
    .black-hole-core h1 {
        font-size: 3.6rem;
    }
}

@media (max-width: 868px) {
    .content-grid,
    .content-grid.reverse {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .black-hole {
        width: 340px;
        height: 340px;
    }
    
    .black-hole-core h1 {
        font-size: 3.1rem;
    }
    
    .section {
        padding: 90px 1.2rem 80px;
    }
    
    nav {
        display: none;
    }
    
    .header-content {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .black-hole {
        width: 280px;
        height: 280px;
    }
    
    .black-hole-core h1 {
        font-size: 2.6rem;
    }
    
    .enter-btn {
        padding: 13px 36px;
        font-size: 1.05rem;
    }
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 28px;
}

.feature-card {
    background: #23252e;
    padding: 32px 28px;
    border-radius: 16px;
    border: 1px solid #2a2d38;
    transition: all 0.3s ease;
}

.feature-card:hover {
    border-color: #2777ff;
    transform: translateY(-4px);
}

.feature-card h3 {
    color: #2777ff;
    margin-bottom: 16px;
    font-size: 1.45rem;
    font-weight: 600;
}

.section-header h2 {
    font-size: 2.75rem;
    line-height: 1.25;
    margin-bottom: 18px;
}

.intro-text {
    font-size: 1.18rem;
    color: #bbb;
    max-width: 820px;
    margin: 0 auto 50px;
}

.content-grid {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 70px;
    align-items: start;
}

.content-grid.reverse {
    grid-template-columns: 380px 1fr;
}

.text-block {
    line-height: 1.75;
}

.text-block p {
    margin-bottom: 22px;
}

.stats {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.stat-item {
    background: #23252e;
    padding: 24px 26px;
    border-radius: 14px;
    border: 1px solid #2a2d38;
}

.stat-item strong {
    font-size: 2.05rem;
    color: #2777ff;
    display: block;
    margin-bottom: 6px;
}

.academy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 28px;
}

.academy-card {
    background: #23252e;
    padding: 36px 30px;
    border-radius: 16px;
    border: 1px solid #2a2d38;
    transition: all 0.3s ease;
}

.academy-card:hover {
    border-color: #2777ff;
    transform: translateY(-5px);
}

.academy-card h3 {
    color: #2777ff;
    margin-bottom: 18px;
}

.mirrors-section {
    background: #23252e;
}

.mirrors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 20px;
    max-width: 920px;
    margin: 0 auto 40px;
}

.mirror-link {
    background: #181a20;
    color: #2777ff;
    padding: 20px 26px;
    border-radius: 14px;
    text-decoration: none;
    font-family: monospace;
    font-size: 1.06rem;
    border: 1px solid #2a2d38;
    transition: all 0.3s ease;
    display: block;
    word-break: break-all;
}

.mirror-link:hover {
    border-color: #2777ff;
    background: rgba(39, 119, 255, 0.08);
    transform: translateY(-3px);
}

.warning {
    text-align: center;
    color: #777;
    font-size: 1rem;
    max-width: 720px;
    margin: 0 auto;
    line-height: 1.6;
}

.keywords-seo {
    margin-top: 30px;
    font-size: 0.85rem;
    color: #444;
    letter-spacing: 0.4px;
}

footer {
    padding: 80px 20px 50px;
    text-align: center;
    color: #666;
    border-top: 1px solid #23252e;
}

.small {
    margin-top: 12px;
    font-size: 0.92rem;
}

@media (max-width: 1024px) {
    .content-grid,
    .content-grid.reverse {
        grid-template-columns: 1fr;
        gap: 50px;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 90px 1.2rem 70px;
    }
    
    .section-header h2 {
        font-size: 2.4rem;
    }
    
    .black-hole {
        width: 340px;
        height: 340px;
    }
    
    .black-hole-core h1 {
        font-size: 3rem;
    }
    
    .feature-card,
    .academy-card {
        padding: 28px 24px;
    }
}

@media (max-width: 480px) {
    .black-hole {
        width: 280px;
        height: 280px;
    }
    
    .black-hole-core h1 {
        font-size: 2.55rem;
    }
    
    .enter-btn {
        padding: 14px 36px;
        font-size: 1.05rem;
    }
    
    .mirrors-grid {
        grid-template-columns: 1fr;
    }
}