:root{--color-white: #ffffff;--color-black: #000000;--color-red: #dc2626;--color-green: #16a34a;--color-red-light: #ef4444;--color-green-light: #22c55e;--color-gray-light: #f5f5f5;--color-gray: #737373;--color-gray-dark: #404040;--font-primary: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--transition: all .3s cubic-bezier(.4, 0, .2, 1);--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 10px 10px -5px rgba(0, 0, 0, .04)}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:var(--font-primary);background-color:var(--color-white);color:var(--color-black);line-height:1.6;overflow-x:hidden}body.course-player-page{overflow-x:auto}.container{max-width:1200px;margin:0 auto;padding:0 20px}.navbar{position:fixed;top:0;left:0;right:0;background:#fffffff2;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);box-shadow:var(--shadow-sm);z-index:1000;transition:var(--transition)}.navbar.scrolled{box-shadow:var(--shadow-md)}.nav-wrapper{display:flex;justify-content:space-between;align-items:center;padding:1rem 0}.logo a{font-size:1.25rem;font-weight:700;color:var(--color-black);text-decoration:none;transition:var(--transition);position:relative}.logo a:after{content:"";position:absolute;bottom:-2px;left:0;width:0;height:2px;background:linear-gradient(90deg,var(--color-red),var(--color-green));transition:var(--transition)}.logo a:hover:after{width:100%}.nav-menu{display:flex;list-style:none;gap:2rem;align-items:center}.nav-menu a{color:var(--color-black);text-decoration:none;font-weight:500;position:relative;transition:var(--transition);padding:.5rem 0}.nav-menu a:after{content:"";position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--color-red);transition:var(--transition)}.nav-menu a:hover:after,.nav-menu a.active:after{width:100%}.nav-menu a:hover{color:var(--color-red)}.nav-menu a.btn-signin{padding:.5rem 1.5rem;background:var(--color-green);color:var(--color-white);border-radius:8px;margin-left:1rem}.nav-menu a.btn-signin:after{display:none}.nav-menu a.btn-signin:hover{background:var(--color-green-light);color:var(--color-white);transform:translateY(-2px);box-shadow:var(--shadow-md)}.hamburger{display:none;flex-direction:column;justify-content:center;align-items:center;cursor:pointer;gap:4px;padding:12px;min-width:44px;min-height:44px;-webkit-tap-highlight-color:transparent;-webkit-user-select:none;user-select:none}.hamburger span{width:25px;height:2px;background:var(--color-black);transition:var(--transition)}.hero{position:relative;min-height:100vh;display:flex;align-items:center;justify-content:center;overflow-x:hidden;overflow-y:visible;padding-top:160px;padding-bottom:4rem;background:linear-gradient(180deg,#fef8f6,#f5f9f4,#fafafa);scroll-margin-top:100px}.hero-background{position:absolute;top:0;left:0;right:0;bottom:0;z-index:0;pointer-events:none}.gradient-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(135deg,#dc262614,#16a34a14,#fafafa80)}.floating-shapes{position:absolute;width:100%;height:100%;overflow:hidden}.shape{position:absolute;border-radius:50%;opacity:.15;animation:float 20s infinite ease-in-out}.shape-1{width:300px;height:300px;background:var(--color-red);top:10%;left:10%;animation-delay:0s}.shape-2{width:200px;height:200px;background:var(--color-green);top:60%;right:15%;animation-delay:5s}.shape-3{width:150px;height:150px;background:var(--color-red);bottom:20%;left:50%;animation-delay:10s}@keyframes float{0%,to{transform:translate(0) rotate(0)}33%{transform:translate(30px,-30px) rotate(120deg)}66%{transform:translate(-20px,20px) rotate(240deg)}}.hero-content{position:relative;text-align:center;z-index:1;animation:fadeInUp 1s ease-out}.hero-title{font-size:clamp(2.5rem,8vw,5rem);font-weight:700;margin-bottom:1.5rem;line-height:1.25;padding-top:.15em}.title-line{display:block;padding:.1em 0;background:linear-gradient(135deg,var(--color-black) 0%,var(--color-red) 50%,var(--color-green) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;background-origin:padding-box;animation:gradientShift 3s ease infinite}@keyframes gradientShift{0%,to{background-position:0% 50%}50%{background-position:100% 50%}}.hero-subtitle{font-size:1.25rem;color:var(--color-gray-dark);margin-bottom:2rem;max-width:600px;margin-left:auto;margin-right:auto;text-shadow:0 1px 2px rgba(255,255,255,.8)}.hero-buttons{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}.scroll-indicator{position:absolute;bottom:30px;left:50%;transform:translate(-50%);animation:bounce 2s infinite}.mouse{width:30px;height:50px;border:2px solid var(--color-black);border-radius:15px;position:relative}.mouse:before{content:"";position:absolute;top:8px;left:50%;transform:translate(-50%);width:4px;height:8px;background:var(--color-black);border-radius:2px;animation:scroll 2s infinite}@keyframes bounce{0%,to{transform:translate(-50%) translateY(0)}50%{transform:translate(-50%) translateY(-10px)}}@keyframes scroll{0%{opacity:1;transform:translate(-50%) translateY(0)}to{opacity:0;transform:translate(-50%) translateY(20px)}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.btn{display:inline-block;padding:.875rem 2rem;font-weight:600;text-decoration:none;border-radius:8px;transition:var(--transition);cursor:pointer;border:2px solid transparent;position:relative;overflow:hidden}.btn:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:#fff3;transition:var(--transition)}.btn:hover:before{left:100%}.btn-primary{background:linear-gradient(135deg,var(--color-red),var(--color-red-light));color:var(--color-white);box-shadow:var(--shadow-md)}.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}.btn-secondary{background:var(--color-white);color:var(--color-black);border:2px solid var(--color-black)}.btn-secondary:hover{background:var(--color-black);color:var(--color-white);transform:translateY(-2px)}.btn-outline{background:transparent;color:var(--color-red);border:2px solid var(--color-red)}.btn-outline:hover{background:var(--color-red);color:var(--color-white);transform:translateY(-2px)}section{padding:5rem 0}.section-header{text-align:center;margin-bottom:4rem}.section-header h2{font-size:clamp(2rem,5vw,3rem);font-weight:700;margin-bottom:1rem;color:var(--color-black)}.section-header p{font-size:1.125rem;color:var(--color-gray-dark)}.features{background:var(--color-white)}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem}.feature-card{padding:2rem;background:var(--color-white);border-radius:12px;text-align:center;transition:var(--transition);border:1px solid var(--color-gray-light);position:relative;overflow:hidden}.feature-card:before{content:"";position:absolute;top:0;left:0;width:100%;height:4px;background:linear-gradient(90deg,var(--color-red),var(--color-green));transform:scaleX(0);transition:var(--transition)}.feature-card:hover:before{transform:scaleX(1)}.feature-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-xl)}.feature-icon{width:60px;height:60px;margin:0 auto 1.5rem;color:var(--color-red);transition:var(--transition)}.feature-card:hover .feature-icon{color:var(--color-gray-dark);transform:scale(1.1) rotate(5deg)}.feature-card h3{font-size:1.25rem;font-weight:600;margin-bottom:1rem;color:var(--color-black)}.feature-card p{color:var(--color-gray-dark);line-height:1.6}.video-gallery{padding:4rem 0;background:var(--color-white)}.video-gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem;max-width:1100px;margin:0 auto}.video-item{border-radius:12px;overflow:hidden;box-shadow:var(--shadow-md)}.video-wrapper{position:relative;padding-bottom:56.25%;height:0;overflow:hidden}.video-wrapper iframe{position:absolute;top:0;left:0;width:100%;height:100%}@media (max-width: 900px){.video-gallery-grid{grid-template-columns:1fr;max-width:560px;margin-left:auto;margin-right:auto}}.courses-preview{background:var(--color-gray-light)}.courses-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;margin-bottom:3rem}.course-card{background:var(--color-white);border-radius:16px;padding:2rem;transition:var(--transition);position:relative;overflow:hidden;box-shadow:var(--shadow-md)}.course-card:after{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--color-red),var(--color-green));transform:scaleX(0);transition:var(--transition)}.course-card:hover:after{transform:scaleX(1)}.course-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-xl)}.course-card.featured{border:2px solid var(--color-green);transform:scale(1.05)}.course-badge{display:inline-block;padding:.5rem 1rem;background:var(--color-red);color:var(--color-white);border-radius:20px;font-size:.875rem;font-weight:600;margin-bottom:1rem}.course-card.featured .course-badge{background:var(--color-green)}.course-content h3{font-size:1.5rem;font-weight:700;margin-bottom:1rem;color:var(--color-black)}.course-features{list-style:none;margin:1.5rem 0}.course-features li{color:var(--color-gray-dark);position:relative;padding:.5rem 0 .5rem 1.5rem}.course-features li:before{content:"✓";position:absolute;left:0;color:var(--color-gray-dark);font-weight:400}.text-center{text-align:center}.testimonials{background:var(--color-white)}.testimonials-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem}.testimonial-card{background:var(--color-white);padding:2rem;border-radius:12px;box-shadow:var(--shadow-md);border-left:4px solid var(--color-red);transition:var(--transition)}.testimonial-card:hover{transform:translate(5px);box-shadow:var(--shadow-lg);border-left-color:var(--color-gray-dark)}.stars{color:var(--color-gray-dark);font-size:1.25rem;margin-bottom:1rem}.testimonial-content p{font-style:italic;color:var(--color-gray-dark);margin-bottom:1.5rem;line-height:1.8}.testimonial-author strong{display:block;color:var(--color-black);font-weight:600;margin-bottom:.25rem}.testimonial-author span{color:var(--color-gray);font-size:.875rem}.page-header{background:linear-gradient(135deg,#dc26261a,#16a34a1a);padding:8rem 0 4rem;text-align:center;margin-top:100px}.page-header h1{font-size:clamp(2.5rem,6vw,4rem);font-weight:700;margin-bottom:1rem;color:var(--color-black)}.page-header p{font-size:1.25rem;color:var(--color-gray-dark)}.courses-page{padding:4rem 0}.courses-list{display:flex;flex-direction:column;gap:2rem}.course-detail-card{background:var(--color-white);border-radius:16px;padding:2.5rem;box-shadow:var(--shadow-md);border:1px solid var(--color-gray-light);transition:var(--transition);position:relative;overflow:hidden}.course-detail-card:before{content:"";position:absolute;top:0;left:0;width:4px;height:100%;background:linear-gradient(180deg,var(--color-red),var(--color-green));transform:scaleY(0);transition:var(--transition)}.course-detail-card:hover:before{transform:scaleY(1)}.course-detail-card:hover{transform:translate(5px);box-shadow:var(--shadow-xl)}.course-detail-card.featured{border:2px solid var(--color-green)}.course-detail-card.bundle{border:2px solid var(--color-red);background:linear-gradient(135deg,#dc262605,#16a34a05)}.course-detail-header{margin-bottom:2rem}.course-level-badge{display:inline-block;padding:.5rem 1rem;border-radius:20px;font-size:.875rem;font-weight:600;margin-bottom:1rem;color:var(--color-white)}.course-level-badge.beginner{background:var(--color-red)}.course-level-badge.intermediate{background:var(--color-green)}.course-level-badge.advanced,.course-level-badge.bundle-badge{background:linear-gradient(135deg,var(--color-red),var(--color-green))}.course-detail-header h2{font-size:2rem;font-weight:700;color:var(--color-black)}.course-info{display:flex;gap:2rem;margin-bottom:2rem;flex-wrap:wrap}.info-item{display:flex;align-items:center;gap:.5rem;color:var(--color-gray-dark)}.info-item svg{width:20px;height:20px;color:var(--color-red)}.course-description{margin-bottom:2rem}.course-description h3{font-size:1.5rem;font-weight:600;margin-bottom:1rem;color:var(--color-black)}.course-description ul{list-style:none;padding-left:0}.course-description li{padding:.5rem 0 .5rem 1.5rem;position:relative;color:var(--color-gray-dark)}.course-description li:before{content:"-";position:absolute;left:0;color:var(--color-gray-dark);font-weight:400}.course-tabs{margin-bottom:2rem}.tab-buttons{display:flex;gap:0;border-bottom:2px solid var(--color-gray-light);margin-bottom:1.5rem}.tab-btn{background:none;border:none;padding:.75rem 1.5rem;font-size:1rem;font-weight:500;color:var(--color-gray);cursor:pointer;position:relative;transition:var(--transition);font-family:inherit}.tab-btn:hover{color:var(--color-black)}.tab-btn.active{color:var(--color-black);font-weight:600}.tab-btn.active:after{content:"";position:absolute;bottom:-2px;left:0;right:0;height:2px;background:var(--color-black)}.tab-content{position:relative}.tab-pane{display:none;animation:fadeIn .3s ease-in}.tab-pane.active{display:block}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.tab-pane p{margin-bottom:1rem;color:var(--color-gray-dark);line-height:1.8;font-size:1rem}.tab-pane h4{font-size:1.25rem;font-weight:600;margin:1.5rem 0 1rem;color:var(--color-black)}.tab-pane ul{list-style:none;padding-left:0;margin-bottom:1.5rem}.tab-pane li{padding:.5rem 0 .5rem 1.5rem;position:relative;color:var(--color-gray-dark);line-height:1.6}.tab-pane li:before{content:"-";position:absolute;left:0;color:var(--color-gray-dark);font-weight:400}.tab-pane strong{color:var(--color-black);font-weight:600}.course-price{display:flex;align-items:center;gap:1.5rem;flex-wrap:wrap;padding-top:4rem;border-top:1px solid var(--color-gray-light)}.price{font-size:2.5rem;font-weight:700;color:var(--color-black)}.price-old{font-size:1.5rem;color:var(--color-gray);text-decoration:line-through}.price-save{padding:.5rem 1rem;background:var(--color-green);color:var(--color-white);border-radius:20px;font-size:.875rem;font-weight:600}.about-page{padding:4rem 0}.about-main{display:grid;grid-template-columns:300px 1fr;gap:3rem;margin-bottom:4rem;align-items:start}.about-image{position:sticky;top:100px}.image-placeholder{width:100%;aspect-ratio:1;background:linear-gradient(135deg,#dc26261a,#16a34a1a);border-radius:16px;display:flex;align-items:center;justify-content:center;border:2px solid var(--color-gray-light)}.image-placeholder svg{width:120px;height:120px;color:var(--color-gray)}.about-text h2{font-size:2.5rem;font-weight:700;margin-bottom:1.5rem;color:var(--color-black)}.about-text p{margin-bottom:1.5rem;color:var(--color-gray-dark);line-height:1.8;font-size:1.125rem}.about-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:2rem;margin-bottom:4rem}.stat-card{text-align:center;padding:2rem;background:var(--color-white);border-radius:12px;box-shadow:var(--shadow-md);transition:var(--transition);border-top:4px solid var(--color-red)}.stat-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-top-color:var(--color-gray-dark)}.stat-number{font-size:3rem;font-weight:700;background:linear-gradient(135deg,var(--color-red),var(--color-green));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:.5rem}.stat-label{color:var(--color-gray-dark);font-weight:500}.about-qualifications{margin-bottom:4rem}.about-qualifications h2{font-size:2.5rem;font-weight:700;margin-bottom:2rem;text-align:center;color:var(--color-black)}.qualifications-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem}.qualification-card{padding:2rem;background:var(--color-white);border-radius:12px;box-shadow:var(--shadow-md);text-align:center;transition:var(--transition);border:1px solid var(--color-gray-light)}.qualification-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-xl);border-color:var(--color-gray-dark)}.qual-icon{width:60px;height:60px;margin:0 auto 1.5rem;color:var(--color-red);transition:var(--transition)}.qualification-card:hover .qual-icon{color:var(--color-gray-dark);transform:scale(1.1) rotate(5deg)}.qualification-card h3{font-size:1.25rem;font-weight:600;margin-bottom:1rem;color:var(--color-black)}.qualification-card p{color:var(--color-gray-dark);line-height:1.6}.about-philosophy h2{font-size:2.5rem;font-weight:700;margin-bottom:3rem;text-align:center;color:var(--color-black)}.philosophy-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem}.philosophy-item{padding:2rem;background:var(--color-white);border-radius:12px;box-shadow:var(--shadow-md);border-left:4px solid var(--color-red);transition:var(--transition)}.philosophy-item:hover{transform:translate(5px);border-left-color:var(--color-gray-dark);box-shadow:var(--shadow-lg)}.philosophy-item h3{font-size:1.5rem;font-weight:600;margin-bottom:1rem;color:var(--color-black)}.philosophy-item p{color:var(--color-gray-dark);line-height:1.8}.contact-page{padding:4rem 0}.contact-wrapper{display:grid;grid-template-columns:1fr 1.5fr;gap:4rem}.contact-info h2{font-size:2.5rem;font-weight:700;margin-bottom:1rem;color:var(--color-black)}.contact-info>p{color:var(--color-gray-dark);margin-bottom:3rem;line-height:1.8;font-size:1.125rem}.contact-details{margin-bottom:3rem}.contact-item{display:flex;gap:1.5rem;margin-bottom:2rem;align-items:start}.contact-icon{width:50px;height:50px;background:linear-gradient(135deg,#dc26261a,#16a34a1a);border-radius:12px;display:flex;align-items:center;justify-content:center;flex-shrink:0;color:var(--color-red);transition:var(--transition)}.contact-item:hover .contact-icon{background:linear-gradient(135deg,var(--color-red),var(--color-green));color:var(--color-white);transform:scale(1.1)}.contact-item h3{font-size:1.25rem;font-weight:600;margin-bottom:.5rem;color:var(--color-black)}.contact-item p{color:var(--color-gray-dark)}.contact-hours{padding:1.5rem;background:var(--color-gray-light);border-radius:12px;border-left:4px solid var(--color-green)}.contact-hours h3{font-size:1.25rem;font-weight:600;margin-bottom:.5rem;color:var(--color-black)}.contact-hours p{color:var(--color-gray-dark)}.contact-form-wrapper{background:var(--color-white);padding:2.5rem;border-radius:16px;box-shadow:var(--shadow-lg);border:1px solid var(--color-gray-light)}.contact-form{display:flex;flex-direction:column;gap:1.5rem}.form-group{display:flex;flex-direction:column}.form-group label{font-weight:600;margin-bottom:.5rem;color:var(--color-black)}.form-group input,.form-group select,.form-group textarea{padding:.875rem;border:2px solid var(--color-gray-light);border-radius:8px;font-family:var(--font-primary);font-size:1rem;transition:var(--transition);background:var(--color-white);color:var(--color-black)}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--color-red);box-shadow:0 0 0 3px #dc26261a}.form-group textarea{resize:vertical;min-height:120px}.form-message{padding:1rem;border-radius:8px;margin-top:1rem;display:none;white-space:pre-line;line-height:1.6}.form-message.success{background:#16a34a1a;color:var(--color-gray-dark);border:1px solid var(--color-green);display:block}.form-message.error{background:#dc26261a;color:var(--color-red);border:1px solid var(--color-red);display:block}.auth-page{padding:4rem 0}.auth-wrapper{max-width:500px;margin:0 auto}.auth-card{background:var(--color-white);padding:3rem;border-radius:16px;box-shadow:var(--shadow-lg);border:1px solid var(--color-gray-light)}.auth-card h2{font-size:2rem;font-weight:700;margin-bottom:.5rem;color:var(--color-black);text-align:center}.auth-subtitle{text-align:center;color:var(--color-gray-dark);margin-bottom:2rem}.auth-subtitle a{color:var(--color-red);text-decoration:none;font-weight:600}.auth-subtitle a:hover{text-decoration:underline}.auth-form{display:flex;flex-direction:column;gap:1.5rem}.btn-block{width:100%;text-align:center}.forgot-password{color:var(--color-red);text-decoration:none;font-size:.875rem;font-weight:500}.forgot-password:hover{text-decoration:underline}.form-group small{display:block;margin-top:.25rem;color:var(--color-gray);font-size:.875rem}.password-wrapper{position:relative;display:flex;align-items:center}.password-wrapper input{padding-right:3rem;width:100%}.password-toggle{position:absolute;right:.75rem;background:none;border:none;cursor:pointer;padding:.5rem;display:flex;align-items:center;justify-content:center;color:var(--color-gray-dark);transition:color var(--transition)}.password-toggle:hover{color:var(--color-red)}.password-toggle:focus{outline:none;color:var(--color-red)}.eye-icon{width:20px;height:20px;stroke:currentColor}.eye-icon.eye-closed,.password-wrapper.show-password .eye-icon.eye-open{display:none}.password-wrapper.show-password .eye-icon.eye-closed{display:block}.account-page{padding:4rem 0}.account-message{text-align:center;padding:3rem;background:var(--color-white);border-radius:16px;box-shadow:var(--shadow-md)}.account-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:3rem;padding-bottom:2rem;border-bottom:2px solid var(--color-gray-light)}.user-info h2{font-size:2rem;font-weight:700;margin-bottom:.5rem;color:var(--color-black)}.user-info p{color:var(--color-gray-dark)}.my-courses-section,.progress-section{margin-bottom:4rem}.my-courses-section h3,.progress-section h3{font-size:1.75rem;font-weight:700;margin-bottom:2rem;color:var(--color-black)}.course-progress{margin:1.5rem 0}.progress-bar{width:100%;height:8px;background:var(--color-gray-light);border-radius:4px;overflow:hidden;margin-bottom:.5rem}.progress-fill{height:100%;background:linear-gradient(90deg,var(--color-red),var(--color-green));transition:width .3s ease}.progress-text{font-size:.875rem;color:var(--color-gray-dark)}.progress-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:2rem}.no-courses-message{text-align:center;padding:3rem;background:var(--color-gray-light);border-radius:12px}.loading-message{text-align:center;padding:2rem;color:var(--color-gray-dark)}.course-player-page{padding:2rem 0;min-height:calc(100vh - 200px);scroll-margin-top:100px}.course-player-page .container{overflow:visible;max-width:1400px;padding:0 24px}.access-denied{text-align:center;padding:4rem 2rem;background:var(--color-white);border-radius:16px;box-shadow:var(--shadow-md);max-width:600px;margin:4rem auto}.access-denied h2{font-size:2rem;font-weight:700;margin-bottom:1rem;color:var(--color-black)}.access-denied p{color:var(--color-gray-dark);margin-bottom:2rem;font-size:1.125rem}.player-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,340px);gap:1.5rem;align-items:start;position:relative;z-index:1;min-width:0}.player-main{min-width:0;max-width:100%;background:var(--color-white);border-radius:16px;padding:1.5rem;box-shadow:var(--shadow-md);position:relative;z-index:1}.video-container{position:relative;width:100%;max-width:100%;margin-bottom:1.5rem;border-radius:12px;background:var(--color-black);scroll-margin-top:120px;overflow:hidden;aspect-ratio:16 / 9}#videoPlayer{position:absolute;top:0;left:0;width:100%;height:100%;background:var(--color-black);visibility:visible;opacity:1;border-radius:12px}#videoPlayer iframe,#videoPlayer video{position:absolute;top:0;left:0;width:100%;height:100%;border:none;display:block;object-fit:contain}.lesson-info{min-width:0}.lesson-info h2{font-size:1.75rem;font-weight:700;margin-bottom:1rem;color:var(--color-black)}.lesson-info p{color:var(--color-gray-dark);line-height:1.8}.player-sidebar{background:var(--color-white);border-radius:16px;padding:0;padding-top:4rem;box-shadow:var(--shadow-md);position:sticky;top:100px;max-height:calc(100vh - 120px);overflow-y:auto;overflow-x:hidden;display:flex;flex-direction:column;min-width:0}.player-sidebar>*{padding-left:2rem;padding-right:2rem}.player-sidebar .course-info{padding-top:1rem;margin-top:0;margin-bottom:2rem;padding-bottom:2rem;border-bottom:2px solid var(--color-gray-light);flex-shrink:0}.player-sidebar .lessons-list{flex:1;min-height:0;display:flex;flex-direction:column;overflow:visible}.player-sidebar .lessons-list ul{overflow:visible!important}.player-sidebar::-webkit-scrollbar{width:8px}.player-sidebar::-webkit-scrollbar-track{background:var(--color-gray-light);border-radius:4px}.player-sidebar::-webkit-scrollbar-thumb{background:var(--color-gray-dark);border-radius:4px}.player-sidebar::-webkit-scrollbar-thumb:hover{background:var(--color-black)}.player-sidebar .course-info{margin-bottom:2rem;padding-bottom:2rem;padding-top:0;margin-top:0;border-bottom:2px solid var(--color-gray-light);flex-shrink:0;position:relative;top:0}.player-sidebar .course-info h3{font-size:1.5rem;font-weight:700;margin-bottom:.5rem;color:var(--color-black)}.player-sidebar .course-info p{color:var(--color-gray-dark);font-size:.875rem}.lessons-list h4{font-size:1.25rem;font-weight:600;margin-bottom:1rem;color:var(--color-black)}.lessons-list{flex:1;min-height:0;display:flex;flex-direction:column;overflow:visible}.lessons-list h4{flex-shrink:0;margin-top:0}.lessons-list ul{list-style:none;padding:0;margin:0;flex:1;overflow:visible;min-height:0}.bundle-group{margin-bottom:1.5rem;list-style:none}.bundle-header{font-weight:700;font-size:1rem;color:var(--color-black);padding:.75rem 1rem;margin-bottom:.5rem;background:var(--color-gray-light);border-radius:8px;border-left:4px solid var(--color-red)}.bundle-lessons{list-style:none;padding:0;margin:0;padding-left:.5rem}.lesson-item{margin-bottom:.5rem}.lesson-item.active .lesson-link{background:linear-gradient(135deg,#dc26261a,#16a34a1a);border-left:4px solid var(--color-green)}.lesson-link{display:flex;align-items:flex-start;gap:.75rem;padding:.875rem;text-decoration:none;color:var(--color-black);border-radius:8px;transition:var(--transition);border-left:4px solid transparent}.lesson-link:hover{background:var(--color-gray-light)}.lesson-number{width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:var(--color-gray-light);border-radius:50%;font-weight:600;font-size:.875rem;flex-shrink:0;margin-top:2px}.lesson-content{display:flex;flex-direction:column;flex:1;gap:.25rem;min-width:0}.lesson-title{display:flex;align-items:center;gap:.5rem;font-size:.9375rem;line-height:1.4;color:var(--color-black);word-wrap:break-word}.lesson-checkmark{color:var(--color-green);font-weight:700;flex-shrink:0}.lesson-item.active .lesson-number{background:var(--color-green);color:var(--color-white)}.lesson-duration{font-size:.8125rem;color:var(--color-gray-dark);margin-top:.25rem}.private-tutoring-page{padding:4rem 0;max-width:900px;margin:0 auto}.tutoring-intro{text-align:center;margin-bottom:4rem}.intro-divider{width:100px;height:2px;background:linear-gradient(90deg,var(--color-red),var(--color-green));margin:2rem auto}.tutoring-intro h2{font-size:2.5rem;font-weight:700;margin-bottom:1.5rem;color:var(--color-black);line-height:1.3}.tutoring-intro p{font-size:1.125rem;line-height:1.8;color:var(--color-gray-dark);margin-bottom:1.5rem;max-width:800px;margin-left:auto;margin-right:auto}.tutoring-intro strong{color:var(--color-black);font-weight:600}.tutoring-section{margin-bottom:3rem}.tutoring-section h3{font-size:2rem;font-weight:700;margin-bottom:1.5rem;color:var(--color-black)}.tutoring-section p{font-size:1.125rem;line-height:1.8;color:var(--color-gray-dark);margin-bottom:1.5rem}.tutoring-features{list-style:none;padding-left:0;background:var(--color-gray-light);padding:2rem;border-radius:12px;border-left:4px solid var(--color-green)}.tutoring-features li{padding:.75rem 0 .75rem 2rem;position:relative;color:var(--color-gray-dark);font-size:1.125rem;line-height:1.6}.tutoring-features li:before{content:"-";position:absolute;left:0;color:var(--color-gray-dark);font-weight:400;font-size:1rem}.tutoring-features li strong{color:var(--color-black);font-weight:600}.tutoring-benefits{list-style:none;padding-left:0;margin-top:1.5rem}.tutoring-benefits li{padding:.75rem 0 .75rem 2rem;position:relative;color:var(--color-gray-dark);font-size:1.125rem;line-height:1.8}.tutoring-benefits li:before{content:"-";position:absolute;left:0;color:var(--color-gray-dark);font-weight:400;font-size:1rem}.comparison-table-wrapper{overflow-x:auto;margin:2rem 0}.comparison-table{width:100%;border-collapse:collapse;background:var(--color-white);box-shadow:var(--shadow-md);border-radius:12px;overflow:hidden}.comparison-table thead{background:linear-gradient(135deg,var(--color-red),var(--color-green));color:var(--color-white)}.comparison-table th{padding:1.25rem;text-align:left;font-weight:600;font-size:1.125rem}.comparison-table td{padding:1.25rem;border-bottom:1px solid var(--color-gray-light);color:var(--color-gray-dark);font-size:1.125rem}.comparison-table tbody tr:last-child td{border-bottom:none}.comparison-table tbody tr:hover{background:#16a34a0d}.comparison-table td:first-child{font-weight:500;color:var(--color-black)}.comparison-tip{margin-top:2rem;padding:1.5rem;background:linear-gradient(135deg,#dc26260d,#16a34a0d);border-radius:12px;border-left:4px solid var(--color-green);font-size:1.125rem;line-height:1.8}.comparison-tip strong{color:var(--color-black);font-weight:600}.tutoring-for-list{list-style:none;padding-left:0;margin-top:1.5rem}.tutoring-for-list li{padding:.75rem 0 .75rem 2rem;position:relative;color:var(--color-gray-dark);font-size:1.125rem;line-height:1.8}.tutoring-for-list li:before{content:"-";position:absolute;left:0;color:var(--color-gray-dark);font-weight:400;font-size:1rem}.tutoring-cta{background:linear-gradient(135deg,#dc26260d,#16a34a0d);padding:3rem;border-radius:16px;text-align:center;margin:4rem 0;border:2px solid var(--color-gray-light)}.tutoring-cta h3{font-size:2rem;font-weight:700;margin-bottom:1rem;color:var(--color-black)}.tutoring-cta p{font-size:1.125rem;line-height:1.8;color:var(--color-gray-dark);margin-bottom:2rem}.contact-info-box{background:var(--color-white);padding:2rem;border-radius:12px;box-shadow:var(--shadow-md);margin-top:2rem;border-left:4px solid var(--color-green)}.contact-info-box p{font-size:1.125rem;line-height:1.8;color:var(--color-gray-dark);margin-bottom:1rem}.contact-info-box p:last-child{margin-bottom:0}.contact-info-box strong{color:var(--color-black);font-weight:600;font-size:1.25rem}.tutoring-about{text-align:center;padding:2rem;background:var(--color-gray-light);border-radius:12px;margin-top:3rem}.tutoring-about p{font-size:1.125rem;line-height:1.8;color:var(--color-gray-dark);font-style:italic}.tutoring-about strong{color:var(--color-black);font-weight:600}.payment-success-page{padding:4rem 0;min-height:calc(100vh - 200px);display:flex;align-items:center}.success-card{max-width:600px;margin:0 auto;background:var(--color-white);padding:4rem 3rem;border-radius:16px;box-shadow:var(--shadow-xl);text-align:center;border:2px solid var(--color-green)}.success-icon{width:80px;height:80px;margin:0 auto 2rem;background:linear-gradient(135deg,var(--color-green),var(--color-green-light));border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--color-white)}.success-icon svg{width:50px;height:50px}.success-card h1{font-size:2.5rem;font-weight:700;margin-bottom:1rem;color:var(--color-black)}.success-card p{font-size:1.125rem;color:var(--color-gray-dark);margin-bottom:2rem;line-height:1.8}.success-actions{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}.footer{background:var(--color-black);color:var(--color-white);padding:4rem 0 2rem;margin-top:4rem}.footer-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:3rem;margin-bottom:3rem}.footer-section h3{font-size:1.5rem;font-weight:700;margin-bottom:1rem;background:linear-gradient(135deg,var(--color-red),var(--color-green));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.footer-section h4{font-size:1.125rem;font-weight:600;margin-bottom:1rem;color:var(--color-white)}.footer-section p{color:#ffffffb3;line-height:1.8}.footer-section ul{list-style:none}.footer-section ul li{margin-bottom:.75rem}.footer-section ul li a{color:#ffffffb3;text-decoration:none;transition:var(--transition);position:relative;padding-left:0}.footer-section ul li a:before{content:"-";position:absolute;left:-1.5rem;opacity:0;transition:var(--transition);color:var(--color-red)}.footer-section ul li a:hover{color:var(--color-white);padding-left:1.5rem}.footer-section ul li a:hover:before{opacity:1;left:0}.social-links{display:flex;gap:1rem}.social-link{width:40px;height:40px;background:#ffffff1a;border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--color-white);transition:var(--transition);text-decoration:none}.social-link svg{width:20px;height:20px}.social-link:hover{background:linear-gradient(135deg,var(--color-red),var(--color-green));transform:translateY(-3px) scale(1.1)}.footer-bottom{text-align:center;padding-top:4rem;border-top:1px solid rgba(255,255,255,.1)}.footer-bottom p{color:#ffffffb3}@media (max-width: 768px){.nav-menu{position:fixed;top:70px;left:-100%;flex-direction:column;background:var(--color-white);width:100%;text-align:center;transition:left .3s ease;box-shadow:var(--shadow-lg);padding:2rem 0;gap:0;z-index:999}.nav-menu.active{left:0}.nav-menu li{width:100%;padding:1rem 0}.nav-menu a.btn-signin{margin-left:0;margin-top:1rem;display:inline-block;width:auto;padding:.75rem 2rem}.hamburger{display:flex}.hamburger.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}.hamburger.active span:nth-child(2){opacity:0}.hamburger.active span:nth-child(3){transform:rotate(-45deg) translate(7px,-6px)}.hero{padding-top:120px;padding-bottom:3rem;min-height:auto}.hero-title{padding-top:.2em}.hero-buttons{flex-direction:column;align-items:stretch}.hero-buttons .btn{width:100%;text-align:center}.about-main{grid-template-columns:1fr}.about-image{position:static}.contact-wrapper,.courses-grid,.features-grid,.testimonials-grid{grid-template-columns:1fr}.course-info{flex-direction:column;gap:1rem}.course-price{flex-direction:column;align-items:flex-start}.course-player-page .container{padding:0 16px}.player-layout{grid-template-columns:1fr;gap:1.5rem}.player-main{padding:1rem}.video-container{margin-bottom:1rem}.player-sidebar{position:static;max-height:none}.account-header{flex-direction:column;align-items:flex-start;gap:1rem}}@media (max-width: 480px){section{padding:3rem 0}.course-detail-card,.contact-form-wrapper{padding:1.5rem}.hero{padding-top:100px;padding-bottom:2.5rem}.hero-title{font-size:2rem;padding-top:.25em}.hero-subtitle{font-size:1rem}.hero-content img{max-width:280px!important}.tutoring-intro h2{font-size:1.75rem}.tutoring-section h3{font-size:1.5rem}.tutoring-cta{padding:2rem 1.5rem}.comparison-table{font-size:.875rem}.comparison-table th,.comparison-table td{padding:.75rem}}.bestsellerworld-link{position:relative;display:block;transition:all .3s ease}.bestsellerworld-image{position:relative;z-index:1;transition:box-shadow .3s ease}.bestsellerworld-link:hover .bestsellerworld-image{box-shadow:0 0 40px #dc2626,0 0 80px #dc2626e6,0 0 120px #dc2626cc,0 0 160px #dc2626b3,0 0 200px #dc262699,0 0 240px #dc262680,0 0 280px #dc262666;filter:brightness(1.05)}.bestsellerworld-link:hover{z-index:1000}