body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;margin:0}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}:root{--primary-gradient:linear-gradient(135deg,#6366f1,#8b5cf6);--secondary-gradient:linear-gradient(135deg,#ec4899,#f43f5e);--whatsapp-gradient:linear-gradient(135deg,#25d366,#128c7e);--dark-bg:#0a0f1c;--darker-bg:#050810;--card-bg:#141928f2;--text-primary:#fff;--text-secondary:#b8c5d6;--text-muted:#8a9ab0;--border-color:#94a3b826;--success-color:#34d399;--warning-color:#fbbf24;--error-color:#ef4444;--shadow-sm:0 1px 2px 0 #0000004d;--shadow-md:0 4px 6px -1px #0006;--shadow-lg:0 10px 15px -3px #00000080;--shadow-glow:0 0 40px #6366f166;--container-max:1280px;--container-padding:24px}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:16px;scroll-behavior:smooth;text-rendering:optimizeLegibility}body{background-color:#0a0f1c;background-color:var(--dark-bg);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-weight:400;letter-spacing:-.01em;line-height:1.7;overflow-x:hidden}.loading-screen,body{color:#fff;color:var(--text-primary)}.loading-screen{align-items:center;background:#050810;background:var(--darker-bg);display:flex;font-size:1.25rem;font-weight:500;height:100vh;justify-content:center;letter-spacing:.02em}.navbar{background:#0000;left:0;padding:20px 0;position:fixed;right:0;top:0;transition:all .3s ease;transition:all var(--transition-normal);z-index:1000}.navbar.scrolled{-webkit-backdrop-filter:blur(20px) saturate(180%);backdrop-filter:blur(20px) saturate(180%);background:#0a0f1cfa;border-bottom:1px solid #94a3b826;border-bottom:1px solid var(--border-color);padding:16px 0}.nav-content{justify-content:space-between;margin:0 auto;max-width:1280px;max-width:var(--container-max);padding:0 24px;padding:0 var(--container-padding)}.logo,.nav-content{align-items:center;display:flex}.logo{color:#fff;color:var(--text-primary);gap:12px;text-decoration:none}.logo-icon{color:#818cf8;filter:drop-shadow(0 0 8px rgba(99,102,241,.5))}.logo-text{background:linear-gradient(135deg,#818cf8,#c084fc);font-size:1.75rem;letter-spacing:-.03em;text-shadow:0 2px 10px #6366f133}.nav-links{gap:40px}.nav-link,.nav-links{align-items:center;display:flex}.nav-link{color:#b8c5d6;color:var(--text-secondary);font-size:1rem;font-weight:500;gap:6px;letter-spacing:.01em;padding:8px 0;position:relative;text-decoration:none;transition:all .15s ease;transition:all 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var(--border-color);color:#b8c5d6;color:var(--text-secondary);font-weight:500}.btn-ghost:hover{background:#ffffff1a;border-color:#94a3b84d;color:#fff;color:var(--text-primary)}.btn-secondary{background:#ffffff1a;border:1.5px solid #fff3;color:#fff}.btn-secondary:hover{background:#ffffff26;border-color:#ffffff4d}.btn-whatsapp{background:linear-gradient(135deg,#25d366,#128c7e);background:var(--whatsapp-gradient);box-shadow:0 4px 16px #25d36666;color:#fff}.btn-whatsapp:hover{box-shadow:0 8px 25px #25d36680;transform:translateY(-2px)}.btn-large{font-size:1.1rem;font-weight:600;padding:16px 32px}.btn-white{background:#fff;box-shadow:0 4px 14px #0003;color:#0f172a;font-weight:600}.btn-white:hover{background:#f8fafc;box-shadow:0 6px 20px #00000040;transform:translateY(-2px)}.btn-outline-white{background:#0000;border:2px solid #fff6;color:#fff;font-weight:600;text-shadow:0 1px 2px #0000001a}.btn-outline-white:hover{background:#ffffff1a;border-color:#fff}.btn-course{background:#6366f11a;border:1.5px solid #6366f14d;color:#fff;font-size:1.05rem;font-weight:600;letter-spacing:.01em;padding:16px;transition:all .15s ease;transition:all var(--transition-fast);width:100%}.btn-course:hover{background:#6366f133;border-color:#6366f180;box-shadow:0 8px 20px #6366f14d;transform:translateY(-2px)}.btn-course.locked-btn{background:#475569;cursor:pointer;opacity:.9}.btn-course.locked-btn:hover{background:#334155;opacity:1}.btn-payment-quick{background:#10b9811a;border:1.5px solid #10b9814d;border-radius:12px;border-radius:var(--radius-md);color:#10b981;padding:12px}.btn-payment-quick:hover{background:#10b98133;border-color:#10b98180}.btn-payment-large{background:linear-gradient(135deg,#10b981,#059669);box-shadow:0 4px 16px #10b98166;color:#fff;font-weight:600;padding:14px 28px}.btn-payment-large:hover{box-shadow:0 8px 25px #10b98180;transform:translateY(-2px)}.menu-toggle{background:#ffffff0d;border:1.5px solid #94a3b826;border:1.5px solid var(--border-color);border-radius:12px;border-radius:var(--radius-md);color:#fff;color:var(--text-primary);cursor:pointer;display:none;padding:10px;transition:all .15s ease;transition:all var(--transition-fast)}.menu-toggle:hover{background:#ffffff1a;border-color:#94a3b84d}.user-profile{position:relative}.profile-avatar-btn{align-items:center;background:linear-gradient(135deg,#6366f1,#8b5cf6);background:var(--primary-gradient);border:2.5px solid #ffffff26;border-radius:50%;box-shadow:0 4px 12px #6366f14d;color:#fff;cursor:pointer;display:flex;font-size:1.1rem;font-weight:700;height:44px;justify-content:center;text-shadow:0 1px 2px #0003;transition:all .15s ease;transition:all var(--transition-fast);width:44px}.profile-avatar-btn:hover{border-color:#ffffff4d;box-shadow:0 6px 20px #6366f180;transform:scale(1.08)}.profile-dropdown{animation:slideDown .25s 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1;min-width:0;overflow:hidden}.profile-name{color:#fff;color:var(--text-primary);font-size:1.1rem;font-weight:600;letter-spacing:.01em;margin-bottom:6px}.profile-email,.profile-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.profile-email{color:#8a9ab0;color:var(--text-muted);font-size:.9rem}.profile-divider{background:#94a3b826;background:var(--border-color);height:1.5px;margin:16px 0}.profile-dropdown-item{align-items:center;border-radius:12px;border-radius:var(--radius-md);color:#b8c5d6;color:var(--text-secondary);display:flex;font-weight:500;gap:10px;margin-bottom:8px;padding:12px;text-decoration:none;transition:all .15s ease;transition:all var(--transition-fast)}.profile-dropdown-item:hover{background:#6366f11a;color:#818cf8}.logout-btn{align-items:center;background:#ef44441a;border:1.5px solid 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var(--border-color);border-radius:16px;border-radius:var(--radius-lg);margin-bottom:24px;padding:20px}.secret-label{color:#8a9ab0;color:var(--text-muted);font-size:.7rem;font-weight:600;letter-spacing:.1em;margin-bottom:12px;margin-top:0;text-transform:uppercase}.secret-input-wrapper{align-items:center;display:flex;gap:8px}.secret-input-wrapper input{background:#ffffff0d;border:1.5px solid #94a3b826;border:1.5px solid var(--border-color);border-radius:12px;border-radius:var(--radius-md);color:#fff;color:var(--text-primary);flex:1 1;font-size:14px;outline:none;padding:12px 16px;transition:all .15s ease;transition:all var(--transition-fast)}.secret-input-wrapper input:focus{background:#ffffff14;border-color:#6366f180}.secret-input-wrapper input.error{animation:shake 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var(--transition-fast)}.alert-close-btn:hover{background:#ffffff0d;border-color:#94a3b84d;color:#fff;color:var(--text-primary)}.hero{align-items:center;display:flex;justify-content:center;min-height:100vh;overflow:hidden;padding:140px 24px 100px;padding:140px var(--container-padding) 100px;position:relative}.hero-bg{inset:0;position:absolute;z-index:0}.gradient-orb{animation:float 12s ease-in-out infinite;border-radius:50%;filter:blur(100px);opacity:.6;position:absolute}.orb-1{animation-delay:0s;background:radial-gradient(circle,#6366f1 0,#0000 70%);height:700px;right:-150px;top:-250px;width:700px}.orb-2{animation-delay:-6s;background:radial-gradient(circle,#ec4899 0,#0000 70%);bottom:-150px;height:500px;left:-150px;width:500px}.hero-content{max-width:950px;position:relative;text-align:center;z-index:1}.hero-title{color:#fff;font-size:clamp(2.75rem,6vw,5rem);font-weight:800;letter-spacing:-.03em;line-height:1.15;margin-bottom:28px;text-shadow:0 4px 20px #0000004d}.gradient-text{-webkit-text-fill-color:#0000;background:linear-gradient(135deg,#818cf8,#f472b6 50%,#c084fc);-webkit-background-clip:text;background-clip:text;filter:drop-shadow(0 2px 10px rgba(99,102,241,.3))}.hero-subtitle{color:#b8c5d6;color:var(--text-secondary);font-size:clamp(1.2rem,2.5vw,1.5rem);font-weight:400;letter-spacing:.01em;line-height:1.7;margin-bottom:48px;margin-left:auto;margin-right:auto;max-width:650px}.hero-cta{display:flex;flex-wrap:wrap;gap:20px;justify-content:center}section{padding:120px 24px;padding:120px var(--container-padding);position:relative}.section-header{margin:0 auto 70px;max-width:800px;text-align:center}.section-tag{background:#6366f126;border:1.5px solid #6366f14d;border-radius:50px;color:#818cf8;display:inline-block;font-size:.9rem;font-weight:700;letter-spacing:.08em;margin-bottom:20px;padding:8px 20px;text-shadow:0 1px 2px #0000001a;text-transform:uppercase}.section-title{color:#fff;font-size:clamp(2.25rem,4vw,3.25rem);font-weight:800;letter-spacing:-.02em;line-height:1.2;margin-bottom:20px}.section-subtitle{color:#b8c5d6;color:var(--text-secondary);font-size:1.25rem;font-weight:400;line-height:1.7;margin:0 auto;max-width:600px}.courses-section{background:#050810;background:var(--darker-bg)}.courses-grid{grid-gap:40px;display:grid;gap:40px;grid-template-columns:repeat(auto-fit,minmax(380px,1fr));margin:0 auto;max-width:1280px;max-width:var(--container-max)}.course-card.locked{opacity:.85;position:relative}.course-card.locked:before{background:#0f172a08;border-radius:24px;border-radius:var(--radius-xl);bottom:0;content:"";left:0;pointer-events:none;position:absolute;right:0;top:0;z-index:1}.locked-badge{align-items:center;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#0009;border:1.5px solid #fbbf244d;border-radius:20px;color:#fbbf24;color:var(--warning-color);display:flex;font-size:12px;font-weight:700;gap:6px;padding:8px 14px;position:absolute;right:16px;top:16px;z-index:2}.course-card{background:#141928f2;background:var(--card-bg);border:1.5px solid #94a3b826;border:1.5px solid var(--border-color);border-radius:24px;border-radius:var(--radius-xl);box-shadow:0 4px 6px -1px #0000004d;overflow:hidden;position:relative;transition:all .3s ease;transition:all var(--transition-normal)}.course-card:hover{border-color:#6366f166;box-shadow:0 25px 50px -12px #0009;transform:translateY(-8px)}.course-header{align-items:flex-start;display:flex;justify-content:space-between;padding:36px;position:relative}.course-icon-wrapper{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#ffffff26;border:1.5px solid #fff3;border-radius:16px;border-radius:var(--radius-lg);box-shadow:0 8px 16px #0003;color:#fff;padding:18px}.course-icon{filter:drop-shadow(0 2px 4px rgba(0,0,0,.2))}.course-price-badge{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#0006;border:1.5px solid #ffffff26;border-radius:50px;box-shadow:0 4px 12px #0003;color:#fff;font-size:1.1rem;font-weight:800;padding:10px 20px;text-shadow:0 1px 2px #0003}.course-body{padding:36px}.course-title{color:#fff;font-size:1.75rem;font-weight:700;letter-spacing:-.01em;margin-bottom:14px}.course-duration{align-items:center;color:#8a9ab0;color:var(--text-muted);display:flex;font-size:1rem;font-weight:500;gap:10px;margin-bottom:24px}.course-topics{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}.topic-tag{background:#6366f11f;border:1px solid #6366f133;border-radius:8px;color:#a5b4fc;font-size:.9rem;font-weight:600;letter-spacing:.01em;padding:8px 14px}.course-features{list-style:none;margin-bottom:28px}.course-features li{align-items:center;color:#b8c5d6;color:var(--text-secondary);display:flex;font-size:1.05rem;font-weight:500;gap:14px;letter-spacing:.01em;padding:10px 0}.check-icon{color:#34d399;color:var(--success-color);filter:drop-shadow(0 0 4px rgba(52,211,153,.3));flex-shrink:0}.course-card-actions{display:flex;gap:12px}.course-card-actions .btn-course{flex:1 1}.quick-payment-cta{background:linear-gradient(180deg,#050810,#0a0f1c);background:linear-gradient(180deg,var(--darker-bg) 0,var(--dark-bg) 100%);padding:60px 24px;padding:60px var(--container-padding)}.quick-payment-box{align-items:center;background:#141928f2;background:var(--card-bg);border:1.5px solid #94a3b826;border:1.5px solid var(--border-color);border-radius:24px;border-radius:var(--radius-xl);box-shadow:0 10px 25px #0000004d;display:flex;gap:32px;justify-content:space-between;margin:0 auto;max-width:1280px;max-width:var(--container-max);padding:32px 40px}.quick-payment-text{align-items:center;display:flex;flex:1 1;gap:20px}.quick-payment-text h3{color:#fff;color:var(--text-primary);font-size:1.35rem;font-weight:700;letter-spacing:-.01em;margin-bottom:6px}.quick-payment-text p{color:#b8c5d6;color:var(--text-secondary);font-size:1rem;line-height:1.6;margin:0}.about-section{background:#0a0f1c;background:var(--dark-bg)}.about-content{margin:0 auto;max-width:1280px;max-width:var(--container-max)}.about-text{margin:0 auto 70px;max-width:850px;text-align:center}.about-description{color:#b8c5d6;color:var(--text-secondary);font-size:1.2rem;font-weight:400;line-height:1.9;margin-bottom:24px}.about-description strong{color:#fff;font-weight:600}.about-features-grid{grid-gap:28px;display:grid;gap:28px;grid-template-columns:repeat(4,1fr)}.about-feature-card{background:#141928f2;background:var(--card-bg);border:1.5px solid #94a3b826;border:1.5px solid var(--border-color);border-radius:16px;border-radius:var(--radius-lg);box-shadow:0 4px 6px -1px #0003;padding:36px 28px;text-align:center;transition:all .3s ease;transition:all var(--transition-normal)}.about-feature-card:hover{border-color:#6366f166;box-shadow:0 20px 40px #0006;transform:translateY(-6px)}.about-feature-icon{align-items:center;background:#6366f126;border:1.5px solid #6366f133;border-radius:16px;border-radius:var(--radius-lg);box-shadow:0 8px 16px #0003;color:#818cf8;display:flex;height:72px;justify-content:center;margin:0 auto 24px;width:72px}.about-feature-icon svg{filter:drop-shadow(0 2px 4px rgba(99,102,241,.3))}.about-feature-title{color:#fff;font-size:1.3rem;font-weight:700;letter-spacing:-.01em;margin-bottom:14px}.about-feature-desc{color:#b8c5d6;color:var(--text-secondary);font-size:1.05rem;font-weight:400;line-height:1.7}.features-section{background:#050810;background:var(--darker-bg)}.features-grid{grid-gap:28px;display:grid;gap:28px;grid-template-columns:repeat(4,1fr);margin:0 auto;max-width:1280px;max-width:var(--container-max)}.feature-card{background:#141928f2;background:var(--card-bg);border:1.5px solid 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