@import url("https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/css/all.min.css");:root{--primary:#4f46e5;--primary-light:#e0e7ff;--primary-dark:#3730a3;--secondary:#10b981;--secondary-light:#d1fae5;--secondary-dark:#059669;--danger:#ef4444;--danger-light:#fee2e2;--danger-dark:#dc2626;--warning:#f59e0b;--warning-light:#fef3c7;--warning-dark:#d97706;--text-primary:#111827;--text-secondary:#6b7280;--text-tertiary:#9ca3af;--border:#e5e7eb;--bg-primary:#ffffff;--bg-secondary:#f9fafb;--bg-tertiary:#f3f4f6;--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--shadow-sm:0 1px 2px 0 rgba(0,0,0,0.05);--shadow-md:0 4px 6px -1px rgba(0,0,0,0.1),0 2px 4px -1px rgba(0,0,0,0.06);--shadow-lg:0 10px 15px -3px rgba(0,0,0,0.1),0 4px 6px -2px rgba(0,0,0,0.05)}[data-theme=dark]{--primary:#6366f1;--primary-light:#4f46e5;--primary-dark:#3730a3;--secondary:#94a3b8;--accent:#fb923c;--background:#0f172a;--surface:#1e293b;--text:#f1f5f9;--text-light:#cbd5e1;--border:#334155;--success:#34d399;--warning:#fbbf24;--error:#f87171;--shadow:0 1px 3px 0 rgba(0,0,0,0.3);--shadow-md:0 4px 6px -1px rgba(0,0,0,0.3)}.dark-theme{--text-color:#f0f0f0;--background-color:#1a1a1a}.ytp-chrome-top,.ytp-title{position:relative;z-index:-12;display:none!important}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body,html{overflow-x:hidden}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;line-height:1.6;color:var(--text-color);background:var(--background-color);transition:all .3s ease}a{text-decoration:none;color:inherit}img{max-width:100%;height:auto}.container{max-width:1200px;margin:0 auto;padding:0 2rem}.section{padding:5rem 0}.section-title{text-align:center;margin-bottom:3rem;font-size:2.5rem;color:var(--text-color)}.btn{display:inline-block;padding:.8rem 1.5rem;border-radius:.5rem;font-weight:600;transition:all .3s ease;cursor:pointer}.btn-primary{background:var(--primary-color);color:white;border:none}.btn-primary:hover{background:#3a56d4;transform:translateY(-3px);box-shadow:0 10px 20px rgba(0,0,0,.2)}.btn-secondary{background:transparent;color:var(--primary-color);border:2px solid var(--primary-color)}.btn-secondary:hover{background:var(--primary-color);color:white}.page-hero{background-size:cover;background-position:50%;height:50vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;color:white;position:relative}.page-hero h1{font-size:3rem;margin-bottom:1rem}.btn-back{position:absolute;top:2rem;left:2rem;color:white;display:flex;align-items:center;gap:.5rem;transition:all .3s ease}.btn-back:hover{color:var(--primary-color)}@media (max-width:768px){.section{padding:3rem 0}.section-title{font-size:2rem}.page-hero h1{font-size:2.5rem}}