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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
    color: #e0e0e0;
    line-height: 1.6;
    min-height: 100vh;
    transition: background 0.5s ease, color 0.5s ease;
}

body.light {
    background: linear-gradient(135deg, #f5f7fa, #c3cfe2);
    color: #1a1a2e;
}

/* Header & Nav */
header {
    background: rgba(15, 12, 41, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

body.light header {
    background: rgba(245, 247, 250, 0.95);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
    transition: all 0.3s ease;
}

nav ul li a {
    color: #e0e0e0;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.5rem 0;
    position: relative;
    transition: color 0.3s ease;
}

body.light nav ul li a {
    color: #1a1a2e;
}

nav ul li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #e94560, #ff6b6b);
    transition: width 0.3s ease;
}

nav ul li a:hover::after,
nav ul li a.active::after {
    width: 100%;
}

nav ul li a:hover {
    color: #e94560;
}

#darkModeToggle {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: #e0e0e0;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

body.light #darkModeToggle {
    background: rgba(0, 0, 0, 0.05);
    color: #1a1a2e;
}

#darkModeToggle:hover {
    background: rgba(233, 69, 96, 0.3);
    transform: rotate(15deg);
}

/* Menu Button */
.menu-btn {
    display: none;
    background: none;
    border: none;
    color: #e0e0e0;
    font-size: 1.8rem;
    cursor: pointer;
    padding: 0.5rem;
    transition: transform 0.3s ease;
}

body.light .menu-btn {
    color: #1a1a2e;
}

.menu-btn:hover {
    transform: scale(1.1);
}

/* Hero Section */
#hero {
    position: relative;
    min-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 4rem 2rem;
    background: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);
    overflow: hidden;
}

#hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 50%, rgba(233, 69, 96, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 70% 50%, rgba(108, 99, 255, 0.15) 0%, transparent 50%);
    animation: heroGlow 8s ease-in-out infinite alternate;
}

@keyframes heroGlow {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(5%, 5%) scale(1.1); }
}

#hero h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    background: linear-gradient(135deg, #e94560, #ff6b6b, #ffd93d);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
    animation: fadeInUp 1s ease;
}

#hero p {
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    color: rgba(255, 255, 255, 0.85);
    max-width: 700px;
    margin-bottom: 2.5rem;
    position: relative;
    z-index: 1;
    animation: fadeInUp 1s ease 0.2s both;
}

#hero a[role="button"] {
    display: inline-block;
    padding: 1rem 3rem;
    background: linear-gradient(135deg, #e94560, #ff6b6b);
    color: #fff;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.1rem;
    position: relative;
    z-index: 1;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 8px 25px rgba(233, 69, 96, 0.4);
    animation: fadeInUp 1s ease 0.4s both;
}

#hero a[role="button"]:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 40px rgba(233, 69, 96, 0.6);
}

body.light #hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

body.light #hero p {
    color: rgba(255, 255, 255, 0.9);
}

/* General Section Styling */
section {
    max-width: 1200px;
    margin: 3rem auto;
    padding: 3rem 2rem;
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    transition: all 0.5s ease;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
}

section:nth-child(2) { animation-delay: 0.1s; }
section:nth-child(3) { animation-delay: 0.2s; }
section:nth-child(4) { animation-delay: 0.3s; }
section:nth-child(5) { animation-delay: 0.4s; }
section:nth-child(6) { animation-delay: 0.5s; }
section:nth-child(7) { animation-delay: 0.6s; }
section:nth-child(8) { animation-delay: 0.7s; }
section:nth-child(9) { animation-delay: 0.8s; }
section:nth-child(10) { animation-delay: 0.9s; }
section:nth-child(11) { animation-delay: 1s; }

body.light section {
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid rgba(0, 0, 0, 0.05);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.05);
}

section:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(233, 69, 96, 0.15);
}

h2 {
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 700;
    margin-bottom: 2rem;
    background: linear-gradient(135deg, #e94560, #ff6b6b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    display: inline-block;
}

h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #e94560, transparent);
    border-radius: 2px;
}

body.light h2::after {
    background: linear-gradient(90deg, #667eea, transparent);
}

h3 {
    font-size: 1.4rem;
    color: #e94560;
    margin-bottom: 1rem;
    font-weight: 600;
}

body.light h3 {
    color: #667eea;
}

p {
    margin-bottom: 1.2rem;
    font-size: 1.05rem;
    color: rgba(255, 255, 255, 0.85);
}

body.light p {
    color: #333;
}

ul, ol {
    margin: 1.5rem 0;
    padding-left: 1.5rem;
}

li {
    margin-bottom: 0.8rem;
    font-size: 1.05rem;
    transition: transform 0.3s ease;
}

li:hover {
    transform: translateX(5px);
}

strong {
    color: #ffd93d;
}

body.light strong {
    color: #e94560;
}

/* Cards / Lists */
#sports ul, #esports ul, #features ul, #promotions ul, #knowledge-hub {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    list-style: none;
    padding: 0;
}

#sports li, #esports li, #features li, #promotions li {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 1.5rem;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    cursor: default;
}

body.light #sports li, body.light #esports li, body.light #features li, body.light #promotions li {
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

#sports li:hover, #esports li:hover, #features li:hover, #promotions li:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 15px 30px rgba(233, 69, 96, 0.2);
    border-color: #e94560;
}

/* Knowledge Hub Articles */
#knowledge-hub article {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 1.8rem;
    transition: all 0.4s ease;
}

body.light #knowledge-hub article {
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

#knowledge-hub article:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(233, 69, 96, 0.2);
    border-color: #e94560;
}

#knowledge-hub article a {
    display: inline-block;
    margin-top: 1rem;
    color: #e94560;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

#knowledge-hub article a:hover {
    color: #ffd93d;
    transform: translateX(5px);
}

/* FAQ */
#faq div[itemprop="mainEntity"] {
    margin-bottom: 1.5rem;
}

#faq h3 {
    cursor: pointer;
    padding: 1rem 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

body.light #faq h3 {
    background: rgba(0, 0, 0, 0.03);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

#faq h3::after {
    content: '+';
    font-size: 1.5rem;
    transition: transform 0.3s ease;
}

#faq h3.active::after {
    transform: rotate(45deg);
}

#faq h3:hover {
    background: rgba(233, 69, 96, 0.1);
    border-color: #e94560;
}

#faq div[itemprop="acceptedAnswer"] {
    padding: 0 1.5rem 1.5rem;
    display: none;
    animation: fadeIn 0.3s ease;
}

#faq div[itemprop="acceptedAnswer"].visible {
    display: block;
}

/* Counter Container */
#about > div:last-child {
    margin-top: 2rem;
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 2rem;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

body.light #about > div:last-child {
    background: rgba(0, 0, 0, 0.02);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

#about > div:last-child div {
    text-align: center;
}

#about > div:last-child span {
    font-size: 2.5rem;
    font-weight: 800;
    color: #e94560;
    display: block;
}

body.light #about > div:last-child span {
    color: #667eea;
}

#about > div:last-child p {
    margin-top: 0.5rem;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
}

body.light #about > div:last-child p {
    color: #666;
}

/* HowTo Section */
#howto ol {
    counter-reset: step;
    list-style: none;
    padding: 0;
}

#howto ol li {
    counter-increment: step;
    padding: 1rem 1.5rem 1rem 3.5rem;
    position: relative;
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    margin-bottom: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all 0.3s ease;
}

body.light #howto ol li {
    background: rgba(0, 0, 0, 0.02);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

#howto ol li::before {
    content: counter(step);
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, #e94560, #ff6b6b);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 0.9rem;
}

#howto ol li:hover {
    transform: translateX(5px);
    border-color: #e94560;
}

/* Contact Section */
#contact address p {
    margin-bottom: 0.8rem;
}

#contact a {
    color: #e94560;
    text-decoration: none;
    transition: color 0.3s ease;
}

#contact a:hover {
    color: #ffd93d;
}

/* Footer */
footer {
    background: rgba(15, 12, 41, 0.95);
    backdrop-filter: blur(20px);
    padding: 3rem 2rem;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    margin-top: 4rem;
}

body.light footer {
    background: rgba(245, 247, 250, 0.95);
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

footer nav ul {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 2rem;
    list-style: none;
    margin-bottom: 2rem;
}

footer nav ul li a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.3s ease;
}

body.light footer nav ul li a {
    color: #666;
}

footer nav ul li a:hover {
    color: #e94560;
}

footer p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

body.light footer p {
    color: #999;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #e94560, #ff6b6b);
    color: #fff;
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 25px rgba(233, 69, 96, 0.4);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 999;
}

.back-to-top.visible {
    display: flex;
}

.back-to-top:hover {
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 15px 40px rgba(233, 69, 96, 0.6);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Scroll Animation */
.scroll-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.scroll-animate.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 768px) {
    nav {
        padding: 0.8rem 1.5rem;
    }

    .menu-btn {
        display: block;
    }

    nav ul {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(15, 12, 41, 0.98);
        backdrop-filter: blur(20px);
        padding: 1rem;
        gap: 0.5rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        z-index: 999;
    }

    body.light nav ul {
        background: rgba(245, 247, 250, 0.98);
        border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    }

    nav ul.show {
        display: flex;
    }

    nav ul li {
        margin: 0;
    }

    nav ul li a {
        display: block;
        padding: 0.8rem 1rem;
        border-radius: 8px;
    }

    nav ul li a:hover {
        background: rgba(233, 69, 96, 0.1);
    }

    section {
        margin: 2rem 1rem;
        padding: 2rem 1.5rem;
    }

    #hero {
        min-height: 70vh;
        padding: 3rem 1.5rem;
    }

    #hero h1 {
        font-size: 2rem;
    }

    #sports ul, #esports ul, #features ul, #promotions ul, #knowledge-hub {
        grid-template-columns: 1fr;
    }

    #about > div:last-child {
        flex-direction: column;
        align-items: center;
    }

    footer nav ul {
        flex-direction: column;
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    section {
        margin: 1.5rem 0.8rem;
        padding: 1.5rem 1rem;
        border-radius: 16px;
    }

    #hero h1 {
        font-size: 1.8rem;
    }

    #hero p {
        font-size: 1rem;
    }

    h2 {
        font-size: 1.6rem;
    }
}

/* Smooth Scroll */
html {
    scroll-behavior: smooth;
}

/* Selection */
::selection {
    background: #e94560;
    color: #fff;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(15, 12, 41, 0.5);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, #e94560, #ff6b6b);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, #ff6b6b, #e94560);
}
```