/* ============================================
   CSS Variables & Reset
   ============================================ */
:root {
    /* Colors */
    --color-bg-primary: #0a0e1a;
    --color-bg-secondary: #12182b;
    --color-bg-tertiary: #1a2332;
    --color-bg-card: #1a2332;
    
    --color-text-primary: #ffffff;
    --color-text-secondary: #b8c1d9;
    --color-text-muted: #7a8499;
    
    --color-accent: #5865f2;
    --color-accent-hover: #4752c4;
    --color-accent-secondary: #00d9ff;
    
    --color-border: #2a3447;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.6;
    
    /* Border Radius */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    
    /* Max widths */
    --max-width-container: 1200px;
    --max-width-content: 800px;
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    line-height: var(--line-height-base);
    color: var(--color-text-primary);
    background: var(--color-bg-primary);
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

ul, ol {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ============================================
   Layout Components
   ============================================ */

.container {
    max-width: var(--max-width-container);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
}

.section {
    padding: var(--spacing-xxl) 0;
}

@media (max-width: 768px) {
    .section {
        padding: var(--spacing-xl) 0;
    }
}

/* ============================================
   Typography
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    line-height: 1.2;
    font-weight: 700;
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-accent-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    text-align: center;
    color: var(--color-text-secondary);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
    max-width: var(--max-width-content);
    margin-left: auto;
    margin-right: auto;
}

/* ============================================
   Buttons
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-md);
    font-weight: 600;
    font-size: 1rem;
    transition: all var(--transition-base);
    white-space: nowrap;
    cursor: pointer;
}

.btn-primary {
    background: var(--color-accent);
    color: var(--color-text-primary);
    box-shadow: 0 4px 12px rgba(88, 101, 242, 0.3);
}

.btn-primary:hover {
    background: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(88, 101, 242, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--color-accent);
}

.btn-outline {
    background: transparent;
    color: var(--color-text-primary);
    border: 2px solid var(--color-accent);
}

.btn-outline:hover {
    background: var(--color-accent);
    transform: translateY(-2px);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-header {
    padding: 0.5rem 1.25rem;
    font-size: 0.9375rem;
}

/* ============================================
   Header
   ============================================ */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 14, 26, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.header.scrolled {
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    gap: var(--spacing-lg);
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: all var(--transition-base);
}

.logo:hover {
    opacity: 0.8;
}

.nav {
    display: flex;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
    font-weight: 500;
    transition: color var(--transition-base);
    position: relative;
}

.nav-link:hover {
    color: var(--color-text-primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition-base);
}

.nav-link:hover::after {
    width: 100%;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.lang-switcher {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.lang-link {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    font-weight: 600;
    transition: color var(--transition-base);
}

.lang-link:hover,
.lang-link.active {
    color: var(--color-accent);
}

.lang-separator {
    color: var(--color-border);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: 8px;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    transition: all var(--transition-base);
}

/* Mobile Navigation */
@media (max-width: 992px) {
    .nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-bg-secondary);
        flex-direction: column;
        padding: var(--spacing-md);
        border-bottom: 1px solid var(--color-border);
        gap: var(--spacing-sm);
    }
    
    .nav.active {
        display: flex;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
}

@media (max-width: 768px) {
    .logo {
        font-size: 1.25rem;
        white-space: nowrap;
    }
    
    .btn-header {
        display: none;
    }
    
    .header-content {
        gap: var(--spacing-sm);
    }
    
    .header-actions {
        gap: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .logo {
        font-size: 1.125rem;
    }
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(88, 101, 242, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(0, 217, 255, 0.1) 0%, transparent 50%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    padding: var(--spacing-xl) 0;
}

.hero-title {
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 0.8s ease-out;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

@media (max-width: 768px) {
    .hero {
        min-height: auto;
        padding: calc(80px + var(--spacing-xl)) 0 var(--spacing-xl);
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .hero-actions .btn {
        width: 100%;
    }
}

/* ============================================
   How It Works Section
   ============================================ */

.how-it-works {
    background: var(--color-bg-secondary);
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.step {
    background: var(--color-bg-card);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-border);
    text-align: center;
    transition: all var(--transition-base);
}

.step:hover {
    transform: translateY(-8px);
    border-color: var(--color-accent);
    box-shadow: 0 8px 24px rgba(88, 101, 242, 0.2);
}

.step-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    height: 80px;
}

.step-title {
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

.step-description {
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
}

@media (max-width: 768px) {
    .steps {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
}

/* ============================================
   Games Section
   ============================================ */

.games-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.games-list li {
    background: var(--color-bg-card);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    border: 1px solid var(--color-border);
    font-weight: 500;
    transition: all var(--transition-base);
    color: var(--color-text-secondary);
}

.games-list li:hover {
    border-color: var(--color-accent);
    transform: translateX(4px);
    color: var(--color-text-primary);
}

.games-more {
    text-align: center;
    font-size: 1.25rem;
    color: var(--color-accent-secondary);
    font-weight: 600;
    margin-top: var(--spacing-md);
}

@media (max-width: 768px) {
    .games-list {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
}

/* ============================================
   Community Section
   ============================================ */

.community {
    background: var(--color-bg-secondary);
}

.features-list {
    max-width: var(--max-width-content);
    margin: var(--spacing-lg) auto 0;
}

.features-list li {
    background: var(--color-bg-card);
    padding: var(--spacing-md) var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    border-radius: var(--border-radius-md);
    border-left: 4px solid var(--color-accent);
    font-size: 1.0625rem;
    color: var(--color-text-secondary);
    transition: all var(--transition-base);
}

.features-list li:hover {
    background: var(--color-bg-tertiary);
    border-left-color: var(--color-accent-secondary);
    transform: translateX(8px);
    color: var(--color-text-primary);
}

.features-list li::before {
    content: "✓";
    color: var(--color-accent);
    font-weight: bold;
    margin-right: var(--spacing-sm);
}

@media (max-width: 768px) {
    .features-list li {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 1rem;
    }
}

/* ============================================
   Rules Section
   ============================================ */

.rules-list {
    max-width: var(--max-width-content);
    margin: var(--spacing-lg) auto;
}

.rules-list li {
    background: var(--color-bg-card);
    padding: var(--spacing-md) var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    border-radius: var(--border-radius-md);
    border: 1px solid var(--color-border);
    font-size: 1.0625rem;
    color: var(--color-text-secondary);
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
}

.rules-list li::before {
    content: "•";
    color: var(--color-accent);
    font-size: 1.5rem;
    margin-right: var(--spacing-sm);
    flex-shrink: 0;
    line-height: 1;
    margin-top: -2px;
}

.rules-list li:hover {
    border-color: var(--color-accent);
    color: var(--color-text-primary);
}

.rules-footer {
    text-align: center;
    color: var(--color-text-muted);
    font-style: italic;
    margin-top: var(--spacing-lg);
}

@media (max-width: 768px) {
    .rules-list li {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 1rem;
    }
}

/* ============================================
   FAQ Section
   ============================================ */

.faq {
    background: var(--color-bg-secondary);
}

.faq-list {
    max-width: var(--max-width-content);
    margin: var(--spacing-lg) auto 0;
}

.faq-item {
    background: var(--color-bg-card);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.faq-item:hover {
    border-color: var(--color-accent);
    box-shadow: 0 4px 16px rgba(88, 101, 242, 0.1);
}

.faq-question {
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 1.125rem;
}

.faq-answer {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

@media (max-width: 768px) {
    .faq-item {
        padding: var(--spacing-md);
    }
    
    .faq-question {
        font-size: 1rem;
    }
}

/* ============================================
   CTA Block (inside FAQ)
   ============================================ */

.cta-box {
    text-align: center;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    margin-top: var(--spacing-xxl);
    padding-top: var(--spacing-xxl);
    width: 100%;
}

.cta-title {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cta-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

.cta-box .btn {
    background: var(--color-accent);
    color: #fff;
    border: none;
    font-size: 1.125rem;
    padding: 1rem 2.5rem;
    font-weight: 600;
}

.cta-box .btn:hover {
    background: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(88, 101, 242, 0.4);
}

@media (max-width: 768px) {
    .cta-box {
        margin-top: var(--spacing-xl);
        padding-top: var(--spacing-xl);
    }
    
    .cta-title {
        font-size: 1.875rem;
    }
    
    .cta-subtitle {
        font-size: 1rem;
        margin-bottom: var(--spacing-lg);
    }
    
    .cta-box .btn {
        font-size: 1rem;
        padding: 0.875rem 2rem;
        width: 100%;
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .cta-box {
        margin-top: var(--spacing-lg);
        padding-top: var(--spacing-lg);
    }
    
    .cta-title {
        font-size: 1.5rem;
    }
    
    .cta-subtitle {
        font-size: 0.9375rem;
    }
    
    .cta-box .btn {
        padding: 0.875rem 1.75rem;
    }
}

/* ============================================
   About Section
   ============================================ */

.about-content {
    max-width: var(--max-width-content);
    margin: var(--spacing-lg) auto 0;
    text-align: center;
}

.about-content p {
    color: var(--color-text-secondary);
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
}

.about-content strong {
    color: var(--color-accent);
}

.about-content strong a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color var(--transition-base);
}

.about-content strong a:hover {
    color: var(--color-accent-secondary);
    text-decoration: underline;
}

.about-footer {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    font-style: italic;
}

.about-footer a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color var(--transition-base);
}

.about-footer a:hover {
    color: var(--color-accent-secondary);
    text-decoration: underline;
}

@media (max-width: 768px) {
    .about-content p {
        font-size: 1rem;
    }
}

/* ============================================
   Footer
   ============================================ */

.footer {
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-xl) 0;
    margin-top: var(--spacing-xxl);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.footer-copyright {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

.footer-copyright a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color var(--transition-base);
}

.footer-copyright a:hover {
    color: var(--color-accent-secondary);
    text-decoration: underline;
}

.footer-nav {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.footer-nav a {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    transition: color var(--transition-base);
}

.footer-nav a:hover {
    color: var(--color-accent);
}

@media (max-width: 768px) {
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-nav {
        justify-content: center;
        gap: var(--spacing-md);
    }
}

/* ============================================
   Animations
   ============================================ */

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

/* ============================================
   Utility Classes
   ============================================ */

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

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

/* ============================================
   Privacy Policy Modal
   ============================================ */

.modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 14, 26, 0.95);
    backdrop-filter: blur(10px);
    overflow-y: auto;
    animation: fadeIn 0.3s ease;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.modal-content {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    max-width: 800px;
    width: 100%;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    animation: slideUp 0.3s ease;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.modal-header h2 {
    margin: 0;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.modal-close {
    background: none;
    border: none;
    color: var(--color-text-primary);
    font-size: 2rem;
    line-height: 1;
    cursor: pointer;
    padding: 0;
    padding-bottom: 4px;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius-md);
    transition: all var(--transition-base);
    flex-shrink: 0;
}

.modal-close:hover {
    background: var(--color-bg-card);
    color: var(--color-accent);
}

.modal-body {
    padding: var(--spacing-lg);
    overflow-y: auto;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.modal-body h3 {
    color: var(--color-text-primary);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    font-size: 1.25rem;
}

.modal-body h3:first-child {
    margin-top: 0;
}

.modal-body p {
    margin-bottom: var(--spacing-md);
}

.modal-body ul {
    list-style: disc;
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.modal-body li {
    margin-bottom: var(--spacing-sm);
}

.modal-body a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color var(--transition-base);
}

.modal-body a:hover {
    color: var(--color-accent-secondary);
    text-decoration: underline;
}

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

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@media (max-width: 768px) {
    .modal.active {
        padding: var(--spacing-sm);
        align-items: flex-start;
    }
    
    .modal-content {
        max-height: 95vh;
        margin-top: var(--spacing-sm);
    }
    
    .modal-header {
        padding: var(--spacing-md);
        gap: var(--spacing-sm);
    }
    
    .modal-header h2 {
        font-size: 1.5rem;
        flex: 1;
        min-width: 0;
    }
    
    .modal-close {
        font-size: 1.75rem;
        width: 36px;
        height: 36px;
    }
    
    .modal-body {
        padding: var(--spacing-md);
    }
}

/* ============================================
   Accessibility
   ============================================ */

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Focus styles */
a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}