:root{--primary: #00ff41;--accent: #ffd700;--secondary: #8a2be2;--success: #00ff88;--warning: #ffaa00;--error: #ff4444;--bg-primary: #0a0a0a;--bg-secondary: #1a1a1a;--bg-tertiary: #2a2a2a;--bg-card: rgba(0, 255, 65, .05);--text-primary: #ffffff;--text-secondary: #cccccc;--text-muted: #888888;--text-inverse: #000000;--font-display: "Playfair Display", serif;--font-body: "Inter", -apple-system, sans-serif;--font-mono: "Share Tech Mono", monospace;--font-gaming: "Orbitron", monospace;--text-xs: .75rem;--text-sm: .875rem;--text-base: 1rem;--text-lg: 1.125rem;--text-xl: 1.25rem;--text-2xl: 1.5rem;--text-3xl: 1.875rem;--text-4xl: 2.25rem;--text-5xl: 3rem;--text-6xl: 3.75rem;--text-hero: 4.5rem;--font-light: 300;--font-normal: 400;--font-medium: 500;--font-semibold: 600;--font-bold: 700;--font-black: 900;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.25rem;--space-6: 1.5rem;--space-8: 2rem;--space-10: 2.5rem;--space-12: 3rem;--space-16: 4rem;--space-20: 5rem;--space-24: 6rem;--radius-sm: .25rem;--radius-md: .375rem;--radius-lg: .5rem;--radius-xl: .75rem;--radius-2xl: 1rem;--radius-3xl: 1.5rem;--radius-full: 9999px;--academy-section-padding: var(--space-8);--academy-demo-padding: var(--space-6);--academy-content-max-width: 800px;--container-max-width: 1200px;--sidebar-width: 240px;--header-height: 64px;--navbar-height: 32px;--border-default: rgba(255, 255, 255, .1);--border-focus: var(--primary);--border-error: var(--error)}*{margin:0;padding:0;box-sizing:border-box}html,body{height:100%;font-family:var(--font-body);font-size:var(--text-base);line-height:1.6;color:var(--text-primary);background:var(--bg-primary);overflow-x:hidden}.letter-bitcoin-symbol{position:relative!important;overflow:hidden!important;color:transparent!important}.letter-bitcoin-symbol:before{content:"₿"!important;position:absolute!important;left:50%!important;top:50%!important;transform:translate(-50%,-58%) rotate(-15deg) scale(1.7)!important;font-family:Arial 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var(--space-4);border-radius:var(--radius-md);transition:var(--transition-normal);background:#fff3}.banner-link:hover{background:#fff6;transform:translateY(-1px)}.banner-title-blocks{margin-bottom:var(--space-6)}.banner-size .title-block{width:48px;height:48px;font-size:24px;border-radius:6px;margin:0 2px}.banner-size .title-block.title-spacer{width:48px}.banner-subtitle{font-size:1.5rem;color:#333;font-weight:var(--font-bold);margin-top:var(--space-4)}.banner-info{display:flex;flex-direction:column;align-items:center;gap:var(--space-4)}.banner-description{color:#333;font-size:var(--text-lg);margin:0;font-weight:var(--font-semibold)}.banner-icon{font-size:3rem;animation:pulse 2s ease-in-out infinite}.banner-text h3{color:#000;font-size:var(--text-2xl);font-weight:var(--font-bold);margin-bottom:var(--space-2)}.banner-text 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var(--border-default);border-radius:var(--radius-xl);padding:var(--space-8);text-align:center;transition:var(--transition-normal);position:relative;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.pricing-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-neon);border-color:var(--primary)}.pricing-card.featured{border-color:var(--accent);box-shadow:var(--glow-accent)}.pricing-card.featured:hover{box-shadow:0 0 30px #ffd700b3}.pricing-badge{position:absolute;top:-12px;left:50%;transform:translate(-50%);background:var(--accent);color:var(--text-inverse);padding:var(--space-2) var(--space-4);border-radius:var(--radius-full);font-size:var(--text-sm);font-weight:var(--font-bold);text-transform:uppercase;letter-spacing:.5px}.pricing-header{margin-bottom:var(--space-6)}.pricing-icon{font-size:var(--text-4xl);margin-bottom:var(--space-4)}.pricing-header h3{color:var(--text-primary);margin-bottom:var(--space-4)}.pricing-price{display:flex;flex-direction:column;align-items:center;gap:var(--space-2)}.pricing-price .price{font-size:var(--text-4xl);font-weight:var(--font-bold);color:var(--primary)}.pricing-price .period{font-size:var(--text-sm);color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px}.pricing-features{margin-bottom:var(--space-8)}.pricing-features ul{list-style:none;text-align:left}.pricing-features li{padding:var(--space-2) 0;color:var(--text-secondary);position:relative;padding-left:var(--space-6)}.pricing-features li:before{content:"✓";position:absolute;left:0;color:var(--primary);font-weight:var(--font-bold)}.pricing-action{margin-top:auto}.pricing-action .btn{width:100%}.tournament-section{background:linear-gradient(135deg,var(--bg-primary) 0%,var(--bg-secondary) 100%);padding:var(--space-20) 0;position:relative}.tournament-section:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 50% 50%,rgba(0,255,65,.05) 0%,transparent 70%);pointer-events:none}.tournament-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:var(--space-8);margin-top:var(--space-12);position:relative;z-index:1}.tournament-card{background:var(--bg-card);border:1px solid var(--border-default);border-radius:var(--radius-xl);padding:var(--space-8);text-align:center;transition:var(--transition-normal);position:relative;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);overflow:hidden}.tournament-card:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(0,255,65,.1),transparent);transition:left .6s ease}.tournament-card:hover:before{left:100%}.tournament-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-neon);border-color:var(--primary)}.tournament-icon{font-size:var(--text-4xl);margin-bottom:var(--space-4);display:block}.tournament-card h3{color:var(--text-primary);margin-bottom:var(--space-4);font-size:var(--text-xl)}.tournament-card p{color:var(--text-secondary);font-size:var(--text-sm);line-height:1.5}.games-section{padding:var(--space-16) 0;background:var(--bg-primary)}.games-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:var(--space-8);margin-top:var(--space-8)}.game-card{background:var(--bg-card);border:1px solid var(--border-default);border-radius:var(--radius-xl);padding:var(--space-6);text-decoration:none;color:inherit;transition:var(--transition-normal);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);position:relative;overflow:hidden}.game-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-xl),var(--shadow-neon);border-color:var(--primary)}.game-card.coming-soon{opacity:.7;pointer-events:none}.game-card-header{display:flex;align-items:center;gap:var(--space-4);margin-bottom:var(--space-4)}.game-icon{font-size:2.5rem}.game-info h3{font-size:var(--text-xl);color:var(--text-primary);margin-bottom:var(--space-1)}.game-info p{font-size:var(--text-sm);color:var(--text-muted);margin:0}.game-card-content{margin-bottom:var(--space-4)}.game-card-content p{color:var(--text-secondary);margin-bottom:var(--space-4)}.game-stats{display:flex;flex-wrap:wrap;gap:var(--space-3);margin-bottom:var(--space-4)}.game-stats span{background:#00ff411a;color:var(--primary);padding:var(--space-1) var(--space-3);border-radius:var(--radius-full);font-size:var(--text-xs);font-weight:var(--font-semibold);text-transform:uppercase;letter-spacing:1px}.game-card-footer{text-align:center}.features-section{padding:var(--space-16) 0;background:var(--bg-secondary)}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:var(--space-8);margin-top:var(--space-8)}.feature-card{background:var(--bg-card);border:1px solid var(--border-default);border-radius:var(--radius-xl);padding:var(--space-8);text-align:center;transition:var(--transition-normal);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.feature-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-xl),var(--shadow-neon);border-color:var(--primary)}.feature-icon{font-size:3rem;margin-bottom:var(--space-4)}.feature-card h3{font-size:var(--text-xl);color:var(--text-primary);margin-bottom:var(--space-4)}.feature-card p{color:var(--text-secondary);line-height:1.6}.challenge-section{padding:var(--space-16) 0;background:linear-gradient(135deg,var(--bg-secondary) 0%,var(--bg-tertiary) 100%);position:relative;overflow:hidden}.challenge-section:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 30% 20%,rgba(0,255,65,.1) 0%,transparent 50%),radial-gradient(circle at 70% 80%,rgba(255,215,0,.1) 0%,transparent 50%);pointer-events:none}.challenge-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:var(--space-8);margin-top:var(--space-8)}.challenge-card{background:var(--bg-card);border:1px solid var(--border-default);border-radius:var(--radius-xl);padding:var(--space-8);text-align:center;transition:var(--transition-normal);position:relative;overflow:hidden;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.challenge-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-neon);border-color:var(--primary)}.challenge-card.featured{border-color:var(--accent);box-shadow:var(--glow-accent)}.challenge-card.featured:hover{box-shadow:var(--glow-accent),var(--shadow-neon)}.challenge-badge{position:absolute;top:var(--space-4);right:var(--space-4);background:var(--accent);color:var(--text-inverse);padding:var(--space-2) var(--space-4);border-radius:var(--radius-full);font-size:var(--text-xs);font-weight:var(--font-bold);text-transform:uppercase}.challenge-icon{font-size:var(--text-4xl);margin-bottom:var(--space-4);display:block}.challenge-card h3{color:var(--text-primary);margin-bottom:var(--space-2)}.challenge-price{font-size:var(--text-3xl);font-weight:var(--font-bold);color:var(--primary);margin-bottom:var(--space-4);text-shadow:var(--glow-intensity)}.challenge-card p{color:var(--text-secondary);margin-bottom:var(--space-6)}.challenge-card ul{list-style:none;text-align:left}.challenge-card li{color:var(--text-secondary);margin-bottom:var(--space-2);padding-left:var(--space-4);position:relative}.challenge-card li:before{content:"✓";position:absolute;left:0;color:var(--primary);font-weight:var(--font-bold)}.cta-section{padding:var(--space-16) 0;background:linear-gradient(135deg,var(--bg-primary) 0%,var(--bg-secondary) 100%);text-align:center}.cta-content h2{font-size:var(--text-4xl);margin-bottom:var(--space-4)}.cta-content p{font-size:var(--text-lg);color:var(--text-secondary);margin-bottom:var(--space-8)}.cta-actions{display:flex;gap:var(--space-6);justify-content:center;flex-wrap:wrap}.footer{background:var(--bg-primary);border-top:1px solid var(--border-default);padding:var(--space-16) 0 var(--space-8)}.footer-content{display:grid;grid-template-columns:2fr 3fr;gap:var(--space-12);margin-bottom:var(--space-8)}.footer-brand{font-family:var(--font-display);font-size:var(--text-2xl);font-weight:var(--font-bold);color:var(--primary);margin-bottom:var(--space-4)}.footer-brand p{color:var(--text-secondary);font-size:var(--text-sm)}.footer-links{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-8)}.footer-section h4{color:var(--text-primary);font-size:var(--text-lg);margin-bottom:var(--space-4)}.footer-section ul{list-style:none}.footer-section li{margin-bottom:var(--space-2)}.footer-section a{color:var(--text-secondary);text-decoration:none;transition:var(--transition-normal)}.footer-section 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var(--transition-normal);margin-bottom:var(--space-4);width:100%}.demo-button:hover{background:linear-gradient(135deg,#00cc33,var(--primary));transform:translateY(-2px);box-shadow:0 4px 15px #00ff414d}.demo-output{background:var(--bg-primary);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-md);padding:var(--space-4);font-family:var(--font-mono);font-size:var(--text-sm);color:var(--text-secondary);min-height:60px;white-space:pre-wrap;word-break:break-all;max-height:300px;overflow-y:auto}.lesson-navigation{display:flex;justify-content:space-between;align-items:center;max-width:var(--academy-content-max-width);margin:var(--academy-section-padding) auto;padding:0 var(--academy-section-padding)}.lesson-nav-button{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-3) var(--space-6);background:#00ff411a;border:2px solid rgba(0,255,65,.3);border-radius:var(--radius-lg);color:var(--primary);text-decoration:none;font-weight:var(--font-semibold);transition:all var(--transition-normal)}.lesson-nav-button:hover{background:#00ff4133;border-color:var(--primary);transform:translateY(-2px);box-shadow:0 4px 15px #00ff4133}.lesson-nav-button.disabled{opacity:.5;cursor:not-allowed;pointer-events:none}.lesson-metadata{display:flex;gap:var(--space-4);margin-bottom:var(--space-6);flex-wrap:wrap;justify-content:center}.lesson-badge{padding:var(--space-2) var(--space-4);border-radius:var(--radius-full);font-size:var(--text-xs);font-weight:var(--font-semibold);text-transform:uppercase;letter-spacing:1px}.lesson-badge.difficulty-beginner{background:#0f83;color:var(--success);border:1px solid rgba(0,255,136,.3)}.lesson-badge.difficulty-intermediate{background:#fa03;color:var(--warning);border:1px solid rgba(255,170,0,.3)}.lesson-badge.difficulty-advanced{background:#f443;color:var(--error);border:1px solid rgba(255,68,68,.3)}.lesson-badge.duration{background:#8a2be233;color:var(--secondary);border:1px solid rgba(138,43,226,.3)}@media (max-width: 768px){.academy-nav-arrows{display:none}.academy-stats{gap:var(--space-4)}.academy-stat{min-width:100px;padding:var(--space-3) var(--space-4)}.academy-stat-number{font-size:var(--text-xl)}.lesson-section{padding:var(--space-6);margin-bottom:var(--space-6)}.lesson-section h3{font-size:var(--text-xl)}.lesson-navigation{flex-direction:column;gap:var(--space-4)}.lesson-nav-button{width:100%;justify-content:center}.lesson-metadata{justify-content:center}}@media (max-width: 480px){.academy-central-hub{padding:var(--space-6)}.academy-stats{flex-direction:column;align-items:center}.academy-stat{width:100%;max-width:200px}.lesson-section,.demo-container{padding:var(--space-4)}.demo-button{padding:var(--space-4);font-size:var(--text-base)}}