:root{--primary:#00AAFF;--primary-dark:#0088CC;--primary-light:#66D4FF;--primary-rgb:0,170,255;--secondary:#00F5C4;--secondary-dark:#00C49A;--secondary-light:#66FAD9;--secondary-rgb:0,245,196;--accent:#FF6B6B;--accent-hover:#EE5A5A;--accent-light:#FF8E8E;--accent-rgb:255,107,107;--success:#00B894;--success-light:#E6F9F4;--success-text:#065F46;--warning:#D4A017;--warning-light:#FFF8E7;--warning-text:#92400E;--error:#E17055;--error-light:#FDEDEA;--error-text:#9B2C2C;--info:#74B9FF;--info-light:#EBF5FF;--info-text:#1E40AF;--dark:#0A0818;--dark-soft:#4A5568;--gray:#8C979A;--gray-light:#E8ECF0;--light:#F5F7FA;--white:#FFFFFF;--surface:#F8F9FA;--border:#E5E7EB;--gradient-hero:linear-gradient(135deg,#00F5C4 0%,#00AAFF 100%);--gradient-cta:linear-gradient(135deg,#FF6B6B 0%,#FF8E8E 100%);--gradient-card:linear-gradient(135deg,#F8F9FA 0%,#FFFFFF 100%);--gradient-dark:linear-gradient(135deg,#0A0818 0%,#1A1D2E 100%);--gradient-glass:linear-gradient(135deg,rgba(255,255,255,0.1) 0%,rgba(255,255,255,0.05) 100%);--gradient-mesh:radial-gradient(at 40% 20%,rgba(0,170,255,0.08) 0px,transparent 50%),radial-gradient(at 80% 0%,rgba(0,245,196,0.06) 0px,transparent 50%),radial-gradient(at 0% 50%,rgba(0,170,255,0.05) 0px,transparent 50%);--shadow-sm:0 1px 3px rgba(0,0,0,0.04),0 1px 2px rgba(0,0,0,0.06);--shadow-md:0 4px 6px rgba(0,0,0,0.04),0 2px 4px rgba(0,0,0,0.06);--shadow-lg:0 10px 25px rgba(0,170,255,0.12),0 4px 10px rgba(0,0,0,0.04);--shadow-xl:0 20px 50px rgba(0,170,255,0.2),0 8px 16px rgba(0,0,0,0.06);--shadow-card:0 4px 20px rgba(0,170,255,0.08),0 1px 3px rgba(0,0,0,0.04);--shadow-card-hover:0 12px 40px rgba(0,170,255,0.18),0 4px 8px rgba(0,0,0,0.06);--shadow-glow:0 0 40px rgba(0,170,255,0.15);--radius-sm:10px;--radius:16px;--radius-lg:24px;--radius-xl:32px;--radius-full:9999px;--font-family:'Plus Jakarta Sans',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;--font-size-xs:0.75rem;--font-size-sm:0.875rem;--font-size-base:1rem;--font-size-lg:1.125rem;--font-size-xl:1.25rem;--font-size-2xl:1.75rem;--font-size-3xl:2.25rem;--font-size-4xl:3rem;--font-size-5xl:4rem;--line-height:1.7;--line-height-tight:1.2;--space-xs:0.25rem;--space-sm:0.5rem;--space-md:1rem;--space-lg:1.5rem;--space-xl:2rem;--space-2xl:3rem;--space-3xl:4rem;--space-4xl:6rem;--space-5xl:8rem;--container-max:1200px;--header-height:80px;--z-header:1000;--z-dropdown:1100;--z-sidebar:2000;--z-overlay:5000;--z-modal:6000;--z-chat:7000;--z-cookie:8000;--z-exit-popup:9000;--z-toast:9500;--transition-fast:0.15s cubic-bezier(0.4,0,0.2,1);--transition:0.3s cubic-bezier(0.4,0,0.2,1);--transition-slow:0.5s cubic-bezier(0.4,0,0.2,1);--transition-spring:0.4s cubic-bezier(0.34,1.56,0.64,1)}*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{font-family:var(--font-family);font-size:var(--font-size-base);line-height:var(--line-height);color:var(--dark);background-color:var(--white);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}h1,h2,h3,h4,h5,h6{line-height:var(--line-height-tight);font-weight:700;color:var(--dark);letter-spacing:-0.025em}h1{font-size:var(--font-size-4xl);margin-bottom:var(--space-lg);font-weight:800}h2{font-size:var(--font-size-3xl);margin-bottom:var(--space-lg);font-weight:800}h3{font-size:var(--font-size-2xl);margin-bottom:var(--space-md)}h4{font-size:var(--font-size-xl);margin-bottom:var(--space-md)}h5{font-size:var(--font-size-lg);margin-bottom:var(--space-sm)}h6{font-size:var(--font-size-base);margin-bottom:var(--space-sm)}p{margin-bottom:var(--space-md)}a{color:var(--primary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--primary-dark)}img{max-width:100%;height:auto;display:block}ul,ol{list-style:none}button{font-family:var(--font-family)}::selection{background:var(--primary-light);color:var(--white)}:focus-visible{outline:3px solid var(--primary-light);outline-offset:2px}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--gray-light);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--gray)}.skip-link{position:absolute;top:-100px;left:0;background:var(--primary,#7c3aed);color:#fff;padding:0.5rem 1rem;z-index:10000;font-size:0.875rem;text-decoration:none;transition:top 0.2s}.skip-link:focus{top:0}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.error-page{min-height:60vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:4rem 1rem}.error-page-container{max-width:600px}.error-page-icon{font-size:8rem;font-weight:800;background:var(--gradient-accent,linear-gradient(135deg,#00aaff,#00f5c4));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1;margin-bottom:1rem}.error-page h1{font-size:1.75rem;margin-bottom:0.75rem;color:var(--text-primary,#1e293b)}.error-page-desc{color:var(--text-secondary,#64748b);font-size:1.1rem;margin-bottom:2rem}.error-page-actions{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}.container{width:100%;max-width:var(--container-max);margin:0 auto;padding:0 var(--space-xl)}.grid{display:grid;gap:var(--space-xl)}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}.flex{display:flex}.flex-center{display:flex;align-items:center;justify-content:center}.flex-between{display:flex;align-items:center;justify-content:space-between}.flex-col{display:flex;flex-direction:column}.flex-wrap{flex-wrap:wrap}.gap-sm{gap:var(--space-sm)}.gap-md{gap:var(--space-md)}.gap-lg{gap:var(--space-lg)}.gap-xl{gap:var(--space-xl)}.section{padding:var(--space-5xl) 0}.section-sm{padding:var(--space-3xl) 0}.text-center{text-align:center}.text-left{text-align:left}.text-right{text-align:right}.mt-xs{margin-top:var(--space-xs)}.mt-sm{margin-top:var(--space-sm)}.mt-md{margin-top:var(--space-md)}.mt-lg{margin-top:var(--space-lg)}.mt-xl{margin-top:var(--space-xl)}.mt-2xl{margin-top:var(--space-2xl)}.mb-xs{margin-bottom:var(--space-xs)}.mb-sm{margin-bottom:var(--space-sm)}.mb-md{margin-bottom:var(--space-md)}.mb-lg{margin-bottom:var(--space-lg)}.mb-xl{margin-bottom:var(--space-xl)}.mb-2xl{margin-bottom:var(--space-2xl)}.site-header{position:fixed;top:0;left:0;right:0;height:var(--header-height);background:rgba(10,8,24,0.92);backdrop-filter:blur(24px) saturate(180%);-webkit-backdrop-filter:blur(24px) saturate(180%);border-bottom:1px solid rgba(255,255,255,0.08);z-index:1000;transition:all var(--transition)}.site-header.scrolled{background:rgba(10,8,24,0.97);box-shadow:0 1px 2px rgba(0,0,0,0.1),0 4px 16px rgba(0,0,0,0.08)}.site-header .container{height:100%;display:flex;align-items:center;justify-content:space-between}.header-logo{display:flex;align-items:center;text-decoration:none;flex-shrink:0}.header-logo .logo-desktop{height:62px;width:auto;display:block;filter:drop-shadow(0 0 8px rgba(0,245,196,0.2));transition:filter var(--transition)}.header-logo:hover .logo-desktop{filter:drop-shadow(0 0 14px rgba(0,245,196,0.45))}.header-logo .logo-mobile{height:42px;width:42px;display:none;filter:drop-shadow(0 0 8px rgba(0,245,196,0.2))}.header-nav{display:flex;align-items:center;gap:4px}.header-nav > a{font-size:var(--font-size-sm);font-weight:600;color:rgba(255,255,255,0.65);transition:all var(--transition-fast);position:relative;padding:9px 16px;border-radius:var(--radius-full);letter-spacing:0.01em}.header-nav > a::before{content:'';position:absolute;inset:0;border-radius:var(--radius-full);background:radial-gradient(ellipse at 50% 100%,rgba(0,245,196,0.12) 0%,transparent 70%);opacity:0;transition:opacity var(--transition-fast)}.header-nav > a::after{content:'';position:absolute;bottom:4px;left:50%;transform:translateX(-50%) scaleX(0);width:60%;height:1.5px;border-radius:2px;background:linear-gradient(90deg,var(--secondary),var(--primary));box-shadow:0 0 6px var(--secondary),0 0 12px rgba(0,245,196,0.4);transition:transform 0.2s cubic-bezier(0.34,1.56,0.64,1)}.header-nav > a:hover{color:var(--white);text-shadow:0 0 12px rgba(0,245,196,0.5)}.header-nav > a:hover::before{opacity:1}.header-nav > a:hover::after{transform:translateX(-50%) scaleX(1)}.header-actions{display:flex;align-items:center;gap:10px}.site-header .btn-secondary{padding:9px 22px;font-size:var(--font-size-sm);font-weight:600;color:rgba(255,255,255,0.85);border-color:rgba(0,245,196,0.3);background:rgba(0,245,196,0.06);border-radius:var(--radius-full);letter-spacing:0.01em}.site-header .btn-secondary:hover{background:rgba(0,245,196,0.12);color:var(--white);border-color:rgba(0,245,196,0.55);box-shadow:0 0 14px rgba(0,245,196,0.2),inset 0 0 12px rgba(0,245,196,0.05);transform:translateY(-1px)}.site-header .btn-outline{padding:9px 22px;font-size:var(--font-size-sm);font-weight:600;color:rgba(255,255,255,0.6);border-color:rgba(255,255,255,0.12);border-radius:var(--radius-full)}.site-header .btn-outline:hover{background:rgba(255,255,255,0.08);color:var(--white);border-color:rgba(255,255,255,0.25);transform:translateY(-1px)}.site-header .btn-primary{padding:9px 24px;font-size:var(--font-size-sm);font-weight:700;border-radius:var(--radius-full);background:linear-gradient(135deg,var(--secondary) 0%,var(--primary) 100%);border-color:transparent;color:var(--dark);box-shadow:0 0 16px rgba(0,245,196,0.3),0 2px 8px rgba(0,170,255,0.2);letter-spacing:0.01em}.site-header .btn-primary:hover{box-shadow:0 0 24px rgba(0,245,196,0.5),0 4px 16px rgba(0,170,255,0.3);transform:translateY(-1px);color:var(--dark)}.lang-dropdown{position:relative}.lang-dropdown-toggle{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;background:rgba(255,255,255,0.1);border:1px solid rgba(255,255,255,0.12);border-radius:var(--radius-full);cursor:pointer;font-family:var(--font-family);font-size:var(--font-size-xs);font-weight:600;color:rgba(255,255,255,0.85);transition:all var(--transition-fast);line-height:1}.lang-dropdown-toggle:hover{background:rgba(255,255,255,0.18);border-color:rgba(255,255,255,0.2);box-shadow:0 2px 8px rgba(0,0,0,0.15)}.lang-globe{font-size:14px;line-height:1}.lang-current{letter-spacing:0.5px}.lang-chevron{font-size:10px;opacity:0.5;transition:transform var(--transition-fast)}.lang-dropdown.open .lang-chevron{transform:rotate(180deg)}.lang-dropdown-menu{position:absolute;top:calc(100% + 8px);right:0;min-width:180px;background:var(--white);border:1px solid rgba(0,0,0,0.06);border-radius:var(--radius);box-shadow:0 12px 32px rgba(0,0,0,0.1),0 2px 6px rgba(0,0,0,0.04);padding:6px;opacity:0;visibility:hidden;transform:translateY(-8px) scale(0.96);transition:all 0.2s cubic-bezier(0.4,0,0.2,1);z-index:1100}.lang-dropdown.open .lang-dropdown-menu{opacity:1;visibility:visible;transform:translateY(0) scale(1)}.lang-dropdown-item{display:flex;align-items:center;gap:10px;padding:8px 12px;border-radius:var(--radius-sm);font-size:var(--font-size-sm);color:var(--dark-soft);text-decoration:none;transition:all var(--transition-fast)}.lang-dropdown-item:hover{background:var(--light);color:var(--dark)}.lang-dropdown-item.active{color:var(--primary);font-weight:600}.lang-dropdown-code{font-weight:700;font-size:var(--font-size-xs);letter-spacing:0.5px;min-width:24px}.lang-dropdown-name{flex:1}.lang-check{color:var(--primary);font-size:var(--font-size-xs);font-weight:700}.lang-dropdown a::after{display:none !important}.mobile-menu-btn{display:none;background:none;border:none;font-size:1.5rem;cursor:pointer;padding:var(--space-sm);color:var(--white);line-height:1}.site-footer{background:var(--dark);color:var(--gray);padding:var(--space-4xl) 0 calc(var(--space-xl) + 80px);position:relative;overflow:hidden}.site-footer::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(var(--primary-rgb),0.3),rgba(var(--secondary-rgb),0.3),transparent)}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:var(--space-3xl);margin-bottom:var(--space-3xl)}.footer-logo-link{display:inline-block;margin-bottom:var(--space-md);opacity:0.85;transition:opacity var(--transition-fast)}.footer-logo-link:hover{opacity:1}.footer-logo{height:46px;width:auto;filter:brightness(0) invert(1) opacity(0.85)}.footer-col h4{color:var(--white);font-size:var(--font-size-base);margin-bottom:var(--space-lg)}.footer-col a{display:block;color:var(--gray);font-size:var(--font-size-sm);padding:var(--space-xs) 0;transition:color var(--transition-fast)}.footer-col a:hover{color:var(--white)}.footer-col p{font-size:var(--font-size-sm);line-height:1.8}.footer-social{display:flex;gap:var(--space-md);margin-top:var(--space-lg)}.footer-social a{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,0.08);color:var(--gray);transition:all var(--transition-fast);padding:0}.footer-social a:hover{background:rgba(var(--primary-rgb),0.3);color:var(--white);transform:translateY(-2px)}.footer-bottom{border-top:1px solid rgba(255,255,255,0.1);padding-top:var(--space-xl);display:flex;justify-content:space-between;align-items:center;font-size:var(--font-size-xs)}.footer-bottom a{color:var(--gray)}.footer-bottom a:hover{color:var(--white)}body{padding-top:var(--header-height)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-sm);padding:12px 28px;border:1.5px solid transparent;border-radius:var(--radius-sm);font-family:var(--font-family);font-size:var(--font-size-sm);font-weight:600;line-height:1.3;text-decoration:none;cursor:pointer;transition:all var(--transition);position:relative;overflow:hidden;white-space:nowrap;letter-spacing:-0.01em}.btn:active{transform:scale(0.97)}.btn-primary{background:var(--primary);color:var(--white);border-color:transparent;box-shadow:0 2px 8px rgba(var(--primary-rgb),0.25)}.btn-primary:hover{color:var(--white);background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 4px 16px rgba(var(--primary-rgb),0.35)}.btn-secondary{background:transparent;color:var(--primary);border-color:rgba(var(--primary-rgb),0.25)}.btn-secondary:hover{background:rgba(var(--primary-rgb),0.06);color:var(--primary-dark);border-color:rgba(var(--primary-rgb),0.4);transform:translateY(-1px)}.btn-accent{background:var(--accent);color:var(--white);border-color:transparent;box-shadow:0 2px 8px rgba(var(--accent-rgb),0.25)}.btn-accent:hover{color:var(--white);background:var(--accent-hover);transform:translateY(-1px);box-shadow:0 6px 20px rgba(var(--accent-rgb),0.35)}.btn-large{padding:16px 40px;font-size:var(--font-size-base);border-radius:var(--radius)}.btn-small{padding:7px 16px;font-size:var(--font-size-xs);border-radius:8px}.btn-block{width:100%}.btn-ghost{background:rgba(255,255,255,0.08);color:var(--white);border-color:rgba(255,255,255,0.2);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}.btn-ghost:hover{background:rgba(255,255,255,0.15);color:var(--white);border-color:rgba(255,255,255,0.4)}.btn-outline{background:transparent;color:var(--dark-soft);border-color:var(--gray-light)}.btn-outline:hover{background:var(--light);color:var(--dark);border-color:var(--gray)}.btn:disabled,.btn[disabled]{opacity:0.5;cursor:not-allowed;transform:none !important;box-shadow:none !important}.card{background:var(--white);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:var(--space-xl);transition:all var(--transition);position:relative;overflow:hidden;border:1px solid rgba(0,0,0,0.04)}.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);border-color:rgba(var(--primary-rgb),0.1)}a.card-course{color:inherit;text-decoration:none}.card-course{background:var(--white);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:0;overflow:hidden;transition:all var(--transition);display:flex;flex-direction:column;border:1px solid rgba(0,0,0,0.04)}.card-course:hover{transform:translateY(-6px);box-shadow:0 20px 40px rgba(0,0,0,0.08),0 0 0 1px rgba(var(--primary-rgb),0.08)}.card-course .card-icon{height:160px;background:var(--gradient-hero);display:flex;align-items:center;justify-content:center;font-size:3.5rem;color:var(--white);position:relative;overflow:hidden}.card-course .card-icon > span{position:relative;z-index:1}.card-course .card-icon img{position:relative;z-index:1;width:72px;height:72px;filter:drop-shadow(0 0 14px rgba(0,245,196,0.35)) drop-shadow(0 2px 6px rgba(0,0,0,0.4));transition:filter var(--transition)}.card-course:hover .card-icon img{filter:drop-shadow(0 0 22px rgba(0,245,196,0.6)) drop-shadow(0 2px 8px rgba(0,0,0,0.4))}.card-course .card-icon::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 30% 50%,rgba(255,255,255,0.12) 0%,transparent 60%)}.card-course .card-icon::after{content:'';position:absolute;bottom:-1px;left:0;right:0;height:30px;background:var(--white);border-radius:var(--radius-lg) var(--radius-lg) 0 0}.card-course .card-body{padding:var(--space-lg) var(--space-xl) var(--space-xl);flex:1;display:flex;flex-direction:column}.card-course .card-title{font-size:var(--font-size-lg);font-weight:700;color:var(--dark);margin-bottom:var(--space-sm);letter-spacing:-0.02em}.card-course .card-meta{display:flex;align-items:center;gap:var(--space-md);font-size:var(--font-size-sm);color:var(--dark-soft);margin-bottom:var(--space-lg)}.card-course .card-progress{margin-top:auto}.card-feature{background:var(--white);border-radius:var(--radius-lg);box-shadow:none;padding:var(--space-2xl) var(--space-xl);text-align:center;transition:all var(--transition);border:1px solid rgba(0,0,0,0.06);position:relative}.card-feature:hover{transform:translateY(-6px);box-shadow:0 20px 40px rgba(0,0,0,0.06);border-color:rgba(var(--primary-rgb),0.15)}.card-feature .feature-icon{width:64px;height:64px;margin:0 auto var(--space-lg);border-radius:var(--radius);background:linear-gradient(135deg,rgba(var(--primary-rgb),0.08) 0%,rgba(0,245,196,0.08) 100%);display:flex;align-items:center;justify-content:center;font-size:1.75rem;transition:all var(--transition-spring)}.card-feature:hover .feature-icon{background:var(--gradient-hero);color:var(--white);transform:scale(1.1) rotate(-3deg);box-shadow:0 8px 20px rgba(var(--primary-rgb),0.25)}.card-feature .feature-title{font-size:var(--font-size-base);font-weight:700;color:var(--dark);margin-bottom:var(--space-xs);letter-spacing:-0.01em}.card-feature .feature-desc{font-size:var(--font-size-sm);color:var(--dark-soft);line-height:1.7;margin-bottom:0}.card-pricing{background:var(--white);border-radius:var(--radius-xl);box-shadow:0 4px 24px rgba(0,0,0,0.06);padding:var(--space-3xl) var(--space-2xl);text-align:center;position:relative;overflow:hidden;border:1.5px solid rgba(var(--primary-rgb),0.12);transition:all var(--transition);display:flex;flex-direction:column}.card-pricing:hover{transform:translateY(-6px);box-shadow:0 24px 48px rgba(var(--primary-rgb),0.12),0 0 0 1px rgba(var(--primary-rgb),0.1)}.card-pricing::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--gradient-hero)}.card-pricing::after{content:'';position:absolute;top:0;left:0;right:0;height:120px;background:linear-gradient(180deg,rgba(var(--primary-rgb),0.03) 0%,transparent 100%);pointer-events:none}.card-pricing .pricing-ribbon{position:absolute;top:16px;right:16px;background:var(--gradient-cta);color:var(--white);font-size:0.65rem;font-weight:800;text-transform:uppercase;padding:4px 12px;border-radius:var(--radius-full);letter-spacing:1px;box-shadow:0 2px 8px rgba(255,107,107,0.35)}.card-pricing .pricing-title{font-size:var(--font-size-xl);font-weight:700;color:var(--dark);margin-bottom:var(--space-sm);min-height:2.5rem}.card-pricing .pricing-subtitle{font-size:var(--font-size-sm);color:var(--dark-soft);margin-bottom:var(--space-xl)}.card-pricing .pricing-original{font-size:var(--font-size-lg);color:var(--gray);text-decoration:line-through;margin-bottom:var(--space-xs)}.card-pricing .pricing-price{font-size:var(--font-size-5xl);font-weight:900;background:var(--gradient-hero);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1.1;margin-bottom:var(--space-lg);min-height:80px}.card-pricing .pricing-period{font-size:var(--font-size-sm);color:var(--dark-soft);-webkit-text-fill-color:var(--dark-soft);-webkit-background-clip:unset;background-clip:unset;background:none;margin-bottom:0;font-weight:400}.card-pricing .pricing-features{text-align:left;margin-top:var(--space-lg);margin-bottom:0}.card-pricing > .btn{margin-bottom:var(--space-md);flex-shrink:0}.card-pricing .pricing-features li{display:flex;align-items:center;gap:var(--space-sm);padding:var(--space-sm) 0;font-size:var(--font-size-sm);color:var(--dark)}.card-pricing .pricing-features li::before{content:'\2713';display:flex;align-items:center;justify-content:center;width:24px;height:24px;min-width:24px;border-radius:50%;background:var(--success-light);color:var(--success);font-size:var(--font-size-xs);font-weight:700}.card-pricing .pricing-guarantee{font-size:var(--font-size-xs);color:var(--dark-soft);margin-top:var(--space-md)}.form-group{margin-bottom:var(--space-lg)}.form-label{display:block;font-weight:600;font-size:var(--font-size-sm);color:var(--dark);margin-bottom:6px}.form-input{display:block;width:100%;height:52px;padding:0 var(--space-lg);border:2px solid var(--gray-light);border-radius:var(--radius-sm);font-family:var(--font-family);font-size:var(--font-size-base);color:var(--dark);background:var(--white);transition:all var(--transition-fast)}.form-input::placeholder{color:var(--gray)}.form-input:hover{border-color:var(--gray)}.form-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(var(--primary-rgb),0.1)}.form-input.is-error{border-color:var(--error)}.form-input.is-error:focus{box-shadow:0 0 0 4px rgba(225,112,85,0.1)}.form-textarea{display:block;width:100%;min-height:120px;padding:var(--space-md) var(--space-lg);border:2px solid 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a{font-size:var(--font-size-lg);padding:var(--space-md);display:block;width:100%;text-align:center;border-radius:var(--radius)}.header-nav > a:hover{background:rgba(255,255,255,0.1)}.header-actions{display:none}.header-actions-mobile{display:flex;flex-direction:column;align-items:center;gap:var(--space-md);padding-top:var(--space-lg);border-top:1px solid rgba(255,255,255,0.1);margin-top:var(--space-md);width:100%}.mobile-menu-btn{display:flex;align-items:center;justify-content:center}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr;gap:var(--space-2xl)}.footer-bottom{flex-direction:column;gap:var(--space-md);text-align:center;padding-bottom:calc(var(--space-md) + 96px + env(safe-area-inset-bottom,0px))}h1{font-size:var(--font-size-3xl)}h2{font-size:var(--font-size-2xl)}h3{font-size:var(--font-size-xl)}.section{padding:var(--space-4xl) 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!important}body{padding-top:0;font-size:12pt;color:#000;background:#fff}.card,.card-feature,.card-course{box-shadow:none;border:1px solid #ddd;break-inside:avoid}}.chat-toggle{position:fixed;bottom:56px;right:28px;width:56px;height:56px;border-radius:50%;background:var(--dark);color:var(--white);border:1px solid rgba(255,255,255,0.1);cursor:pointer;font-size:1.4rem;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 20px rgba(0,0,0,0.15);z-index:9998;transition:all var(--transition);animation:chatFloatIdle 3s ease-in-out infinite}.chat-toggle-icon{pointer-events:none;line-height:1}.chat-toggle:hover{transform:translateY(-3px);box-shadow:0 8px 28px rgba(0,0,0,0.25);border-color:rgba(255,255,255,0.15);background:var(--dark)}.chat-toggle.active{animation:none;background:var(--primary);color:var(--white);border-color:transparent;box-shadow:0 4px 20px rgba(var(--primary-rgb),0.3)}@keyframes chatFloatIdle{0%,100%{transform:translateY(0)}50%{transform:translateY(-4px)}}.chat-toggle.pulse{animation:chatPulseRing 1.8s ease-out infinite}@keyframes chatPulseRing{0%{box-shadow:0 0 0 0 rgba(var(--primary-rgb),0.55)}70%{box-shadow:0 0 0 14px rgba(var(--primary-rgb),0)}100%{box-shadow:0 0 0 0 rgba(var(--primary-rgb),0)}}.chat-badge{position:absolute;top:-4px;right:-4px;min-width:20px;height:20px;border-radius:10px;background:var(--error);color:#fff;font-size:11px;font-weight:700;line-height:20px;text-align:center;padding:0 5px;border:2px solid var(--white);opacity:0;transform:scale(0.5);transition:opacity 0.3s,transform 0.3s cubic-bezier(0.34,1.56,0.64,1);pointer-events:none}.chat-badge.visible{opacity:1;transform:scale(1)}.chat-nudge{position:fixed;bottom:120px;right:28px;background:var(--white);color:var(--dark);padding:12px 18px;border-radius:16px 16px 4px 16px;box-shadow:0 4px 24px rgba(0,0,0,0.12),0 1px 4px rgba(0,0,0,0.08);font-size:var(--font-size-sm);font-weight:500;max-width:240px;line-height:1.4;opacity:0;transform:translateY(10px) scale(0.95);transition:opacity 0.4s ease,transform 0.4s cubic-bezier(0.34,1.56,0.64,1);pointer-events:none;z-index:9997}.chat-nudge.visible{opacity:1;transform:translateY(0) scale(1);pointer-events:auto;cursor:pointer}.chat-nudge::after{content:'';position:absolute;bottom:-6px;right:20px;width:12px;height:12px;background:var(--white);transform:rotate(45deg);box-shadow:2px 2px 4px rgba(0,0,0,0.06)}.chat-nudge-close{position:absolute;top:-6px;right:-6px;width:20px;height:20px;border-radius:50%;background:var(--dark);color:var(--white);border:none;font-size:11px;cursor:pointer;display:flex;align-items:center;justify-content:center;line-height:1;opacity:0;transition:opacity 0.2s}.chat-nudge.visible .chat-nudge-close{opacity:1}.chat-window{position:fixed;bottom:124px;right:28px;width:380px;height:520px;max-height:calc(100vh - 140px);background:var(--white);border-radius:var(--radius-xl);box-shadow:0 16px 48px rgba(0,0,0,0.12),0 0 0 1px rgba(0,0,0,0.04);z-index:9999;display:none;flex-direction:column;overflow:hidden;transform-origin:bottom right}.chat-window.open{display:flex;animation:chatWindowIn 0.28s cubic-bezier(0.34,1.56,0.64,1)}@keyframes chatWindowIn{from{opacity:0;transform:translateY(20px) scale(0.92)}to{opacity:1;transform:translateY(0) scale(1)}}.chat-header{background:var(--gradient-hero);color:white;padding:14px 16px;display:flex;align-items:center;justify-content:space-between;flex-shrink:0}.chat-header-info{display:flex;align-items:center;gap:10px}.chat-header-avatar{font-size:1.6rem;line-height:1;flex-shrink:0}.chat-header-title{font-weight:600;font-size:var(--font-size-base);line-height:1.2}.chat-header-subtitle{font-size:var(--font-size-xs);opacity:0.85;display:flex;align-items:center;gap:5px;margin-top:2px}.chat-online-dot{width:7px;height:7px;border-radius:50%;background:var(--success);box-shadow:0 0 0 2px rgba(46,204,113,0.35);flex-shrink:0;animation:onlinePulse 2.5s ease-in-out infinite}@keyframes onlinePulse{0%,100%{opacity:1}50%{opacity:0.6}}.chat-close{background:rgba(255,255,255,0.15);border:none;color:white;font-size:1.25rem;cursor:pointer;padding:4px 8px;border-radius:var(--radius);line-height:1;transition:background var(--transition-fast);flex-shrink:0}.chat-close:hover{background:rgba(255,255,255,0.25)}.chat-messages{flex:1;overflow-y:auto;padding:16px 14px 8px;display:flex;flex-direction:column;gap:10px;scrollbar-width:thin;scrollbar-color:var(--gray-light) transparent}.chat-messages::-webkit-scrollbar{width:4px}.chat-messages::-webkit-scrollbar-track{background:transparent}.chat-messages::-webkit-scrollbar-thumb{background:var(--gray-light);border-radius:2px}.chat-message{max-width:86%;padding:10px 13px;border-radius:16px;font-size:var(--font-size-sm);line-height:1.55;animation:msgFadeUp 0.22s ease both;word-break:break-word}@keyframes msgFadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.chat-message.user{align-self:flex-end;background:var(--primary);color:white;border-bottom-right-radius:4px}.chat-message.assistant{align-self:flex-start;background:var(--light);color:var(--dark);border-bottom-left-radius:4px}.chat-message.assistant strong{font-weight:600;color:var(--primary)}.chat-typing{display:none;align-self:flex-start;padding:10px 14px;background:var(--light);border-radius:16px;border-bottom-left-radius:4px}.chat-typing.visible{display:flex;gap:4px;align-items:center}.chat-typing span{width:8px;height:8px;background:var(--gray);border-radius:50%;animation:typingDots 1.4s ease-in-out infinite}.chat-typing span:nth-child(2){animation-delay:0.2s}.chat-typing span:nth-child(3){animation-delay:0.4s}@keyframes typingDots{0%,60%,100%{transform:translateY(0);opacity:0.6}30%{transform:translateY(-6px);opacity:1}}.chat-quick-replies{display:flex;flex-wrap:wrap;gap:6px;align-self:flex-start;max-width:100%;padding-bottom:4px;animation:msgFadeUp 0.25s ease both}.chat-qr-btn{background:var(--white);border:1.5px solid var(--primary);color:var(--primary);border-radius:var(--radius-full);padding:5px 12px;font-size:12px;font-weight:500;cursor:pointer;transition:all var(--transition-fast);white-space:nowrap;font-family:var(--font-family);line-height:1.4}.chat-qr-btn:hover{background:var(--primary);color:var(--white);transform:translateY(-1px);box-shadow:0 3px 10px rgba(var(--primary-rgb),0.3)}.chat-cta{align-self:flex-start;animation:msgFadeUp 0.25s ease both}.chat-cta-btn{display:inline-block;background:var(--primary);color:var(--white);border-radius:var(--radius-full);padding:8px 18px;font-size:var(--font-size-sm);font-weight:600;text-decoration:none;transition:all var(--transition-fast);box-shadow:0 3px 12px rgba(var(--primary-rgb),0.3)}.chat-cta-btn:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 5px 18px rgba(var(--primary-rgb),0.4);color:var(--white);text-decoration:none}.chat-link{color:var(--primary);text-decoration:underline;font-weight:500}.chat-link:hover{color:var(--primary-dark)}.chat-remaining{text-align:center;font-size:11px;color:var(--dark-soft);padding:3px 0;min-height:18px;flex-shrink:0}.chat-input-area{padding:12px 14px;border-top:1px solid var(--gray-light);display:flex;gap:8px;align-items:center;flex-shrink:0}.chat-input{flex:1;border:1.5px solid var(--gray-light);border-radius:var(--radius-full);padding:9px 15px;font-family:var(--font-family);font-size:var(--font-size-sm);outline:none;transition:border-color var(--transition-fast);background:var(--white);color:var(--dark)}.chat-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(var(--primary-rgb),0.1)}.chat-input::placeholder{color:var(--dark-soft);opacity:0.7}.chat-send{width:38px;height:38px;border-radius:50%;background:var(--primary);color:white;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--transition-fast);flex-shrink:0}.chat-send:hover:not(:disabled){background:var(--primary-dark);transform:scale(1.08)}.chat-send:disabled{opacity:0.5;cursor:not-allowed}.chat-mode-ai .chat-header{background:linear-gradient(135deg,var(--primary-dark) 0%,var(--primary) 50%,var(--primary-dark) 100%);background-size:200% 100%;animation:aiHeaderShimmer 4s ease-in-out infinite}@keyframes aiHeaderShimmer{0%,100%{background-position:0% 50%}50%{background-position:100% 50%}}.chat-message.ai-response{background:#f5f0ff;border:1px solid rgba(108,60,247,0.12);position:relative;padding-bottom:22px}.chat-ai-badge{position:absolute;bottom:6px;right:10px;font-size:10px;font-weight:600;color:#9b59b6;opacity:0.7;letter-spacing:0.3px;pointer-events:none}@media (max-width:768px){.chat-toggle{bottom:calc(104px + env(safe-area-inset-bottom,0px));right:16px;width:50px;height:50px;font-size:1.2rem}.chat-window{width:calc(100vw - 16px);height:calc(100vh - 180px);bottom:calc(160px + env(safe-area-inset-bottom,0px));right:8px;left:8px;border-radius:var(--radius-lg)}}.chat-message ul,.chat-message ol{margin:.4rem 0;padding-left:1.2rem}.chat-message li{margin-bottom:.2rem;line-height:1.4}.chat-message pre.chat-code{background:#1e1e2e;color:#cdd6f4;padding:.6rem .8rem;border-radius:6px;font-size:.78rem;overflow-x:auto;margin:.4rem 0;font-family:'Consolas','Monaco',monospace;white-space:pre-wrap;word-break:break-word}.chat-message code.chat-inline-code{background:#f0f0f0;padding:.1rem .3rem;border-radius:3px;font-size:.85em;font-family:'Consolas','Monaco',monospace}.chat-message a{color:var(--primary,#7c3aed);text-decoration:underline}.chat-message a:hover{opacity:.8}.chat-message strong{font-weight:600}.chat-message em{font-style:italic}.urgency-badge{display:inline-block;background:linear-gradient(135deg,#ff6b6b,#ff9a56);color:white;font-size:0.75rem;font-weight:700;padding:4px 12px;border-radius:20px;margin-bottom:8px;text-transform:uppercase;letter-spacing:0.5px}.social-proof-bar{background:var(--white);border-top:1px solid rgba(var(--primary-rgb),0.08);border-bottom:1px solid rgba(var(--primary-rgb),0.08);padding:14px 0;text-align:center;font-size:var(--font-size-sm);color:var(--dark-soft)}.proof-items{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:12px 20px}.proof-number{font-weight:800;font-size:1.05rem;background:var(--gradient-hero);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.proof-divider{color:var(--gray-light);font-size:1rem}.section-title{font-size:clamp(1.75rem,4vw,2.5rem);font-weight:800;margin-bottom:var(--space-2xl);color:var(--dark);letter-spacing:-0.03em}.comparison-section{background:var(--light);position:relative}.comparison-section::before{content:'';position:absolute;inset:0;background:var(--gradient-mesh);pointer-events:none}.comparison-grid{display:grid;grid-template-columns:1fr auto 1fr;gap:var(--space-xl);align-items:center;max-width:820px;margin:0 auto;position:relative;z-index:1}.comparison-card{background:var(--white);border-radius:var(--radius-lg);padding:var(--space-2xl);box-shadow:var(--shadow-md);border:1px solid rgba(0,0,0,0.04);transition:transform var(--transition),box-shadow var(--transition)}.comparison-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}.comparison-before{border-top:4px solid var(--error)}.comparison-after{border-top:4px solid var(--success)}.comparison-before h3{color:var(--error);margin-bottom:var(--space-md);font-size:var(--font-size-lg)}.comparison-after h3{color:var(--success);margin-bottom:var(--space-md);font-size:var(--font-size-lg)}.comparison-list{list-style:none;padding:0}.comparison-list li{padding:10px 0;border-bottom:1px solid var(--gray-light);font-size:var(--font-size-sm);color:var(--dark-soft);display:flex;align-items:flex-start;gap:8px;line-height:1.5}.comparison-list li:last-child{border-bottom:none}.comparison-before .comparison-list li::before{content:'✕';color:var(--error);font-weight:700;flex-shrink:0}.comparison-after .comparison-list li::before{content:'✓';color:var(--success);font-weight:700;flex-shrink:0}.comparison-arrow{font-size:2.5rem;background:var(--gradient-hero);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;font-weight:900;display:flex;align-items:center;justify-content:center}@media (max-width:768px){.comparison-grid{grid-template-columns:1fr;max-width:480px}.comparison-arrow{text-align:center;transform:rotate(90deg);margin:0 auto;padding:var(--space-sm) 0}}