:root{--danger:#c0392b;--warning:#f39c12;--success:#27ae60;--text-color:#444}body{line-height:1.6;color:var(--text-color)}.section-block{padding:80px 20px;width:100%}.section-block:nth-of-type(odd){background-color:var(--white)}.section-block:nth-of-type(even){background-color:var(--lightgrey)}.section-block.hero{background-color:var(--lightblue);padding-top:60px;padding-bottom:80px;text-align:center}.content-wrapper{max-width:800px;margin:0 auto}h1{color:var(--black);font-size:3rem;margin-bottom:15px;line-height:1.2}h2{color:var(--black);font-size:2.2rem;margin-bottom:40px;margin-top:0}h3{color:var(--darkmainblue);font-size:1.5rem;margin:30px 0 15px}p{margin-bottom:20px;font-size:1.1rem;line-height:1.8}.subtitle{color:#555;font-size:1.3rem;margin-bottom:30px}.wrong{color:var(--danger);text-decoration:line-through}.correct{color:var(--mainblue);font-weight:bold}.highlight-text{background:-webkit-gradient(linear,left top,left bottom,color-stop(60%,transparent),color-stop(60%,var(--blue)));background:-o-linear-gradient(top,transparent 60%,var(--blue) 60%);background:linear-gradient(180deg,transparent 60%,var(--blue) 60%);padding:0 5px}.quote{font-style:italic;font-size:1.2rem;color:#555;border-left:4px solid var(--mainblue);padding-left:20px;margin:25px 0}.source{font-size:.9rem;color:#666;margin-top:10px}.source a{color:inherit;text-decoration:underline}ul,ol{margin:15px 0 15px 25px;color:#444}li{margin-bottom:10px;font-size:1.05rem}.emoji{font-size:80px;margin-bottom:20px}.keyboard{background:rgba(255,255,255,0.5);padding:15px 25px;border-radius:10px;display:inline-block;margin-bottom:30px;border:1px solid rgba(0,0,0,0.05)}.keyboard span{display:inline-block;background:var(--white);border:2px solid var(--grey);border-radius:5px;padding:8px 12px;margin:3px;font-family:monospace;font-size:1.2rem;-webkit-box-shadow:0 2px 0 #ccc;box-shadow:0 2px 0 #ccc}.keyboard .highlight{background:var(--blue);border-color:var(--mainblue);color:var(--darkmainblue)}.btn{display:inline-block;background:var(--mainblue);color:var(--white);text-decoration:none;padding:8px 50px;border:none;border-radius:50px;font-size:1.2rem;font-weight:bold;-webkit-transition:background 0.3s,-webkit-transform 0.3s,-webkit-box-shadow .3s;transition:background 0.3s,-webkit-transform 0.3s,-webkit-box-shadow .3s;-o-transition:background 0.3s,transform 0.3s,box-shadow .3s;transition:background 0.3s,transform 0.3s,box-shadow .3s;transition:background 0.3s,transform 0.3s,box-shadow 0.3s,-webkit-transform 0.3s,-webkit-box-shadow .3s}.btn:hover{background:var(--darkmainblue)}.info-box,.neutral-box{margin-top:30px;padding:25px;border-radius:10px;font-size:1rem;text-align:left}.info-box{background:var(--lightblue)}.neutral-box{background:var(--white)}.stats-grid{display:-ms-grid;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;margin:30px 0 100px}.stat-card{background:var(--white);padding:25px;border-radius:15px;text-align:center;-webkit-box-shadow:0 5px 15px rgba(0,0,0,0.18);box-shadow:0 5px 15px rgba(0,0,0,0.18)}.stat-number{font-size:2.5rem;font-weight:bold;color:var(--mainblue);display:block}.stat-label{color:#666;font-size:.95rem;margin-top:5px}.source-grid{grid-column:1 / -1}.timeline{position:relative;padding-left:30px;margin:20px 0}.timeline::before{content:'';position:absolute;left:5px;top:0;bottom:0;width:3px;background:var(--mainblue);border-radius:3px}.timeline-item{position:relative;margin-bottom:25px;padding-left:20px}.timeline-item::before{content:'';position:absolute;left:-29px;top:3px;width:12px;height:12px;background:var(--mainblue);border-radius:50%;border:3px solid var(--white);-webkit-box-shadow:0 0 0 3px var(--mainblue);box-shadow:0 0 0 3px var(--mainblue)}.comparison-table-container{overflow-x:auto}.comparison-table{width:100%;border-collapse:collapse;margin:20px 0;border-radius:10px;overflow:hidden;background:var(--white);min-width:600px}.comparison-table th{white-space:nowrap}.comparison-table th,.comparison-table td{padding:15px;text-align:left;border:1px solid var(--grey)}.comparison-table th{background:var(--mainblue);color:var(--white);font-weight:bold}.comparison-table tr:nth-child(even){background:#f2f2f2}.courses-scroll-wrapper{position:relative;margin:40px -20px;padding:0 20px}.courses-container{display:-webkit-box;display:-ms-flexbox;display:flex;overflow-x:auto;gap:20px;padding:20px 5px;-webkit-overflow-scrolling:touch;scrollbar-width:none;scroll-behavior:smooth}.courses-container::-webkit-scrollbar{display:none}.course-card{-webkit-box-flex:0;-ms-flex:0 0 280px;flex:0 0 280px;background:var(--white);border-radius:15px;padding:25px;-webkit-box-shadow:0 5px 15px rgba(0,0,0,0.08);box-shadow:0 5px 15px rgba(0,0,0,0.08);-webkit-transition:-webkit-transform .3s ease,-webkit-box-shadow .3s ease;transition:-webkit-transform .3s ease,-webkit-box-shadow .3s ease;-o-transition:transform .3s ease,box-shadow .3s ease;transition:transform .3s ease,box-shadow .3s ease;transition:transform .3s ease,box-shadow .3s ease,-webkit-transform .3s ease,-webkit-box-shadow .3s ease;border:1px solid var(--grey);display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column;-webkit-box-pack:justify;-ms-flex-pack:justify;justify-content:space-between;height:320px}.course-title{font-size:1.3rem;font-weight:bold;color:var(--black);margin-bottom:10px;line-height:1.3}.course-desc{font-size:.95rem;color:#666;margin-bottom:20px;display:-webkit-box;line-clamp:3;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;-webkit-box-flex:1;-ms-flex-positive:1;flex-grow:1}.course-meta{border-top:1px solid var(--grey);padding-top:15px;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-pack:justify;-ms-flex-pack:justify;justify-content:space-between;-webkit-box-align:center;-ms-flex-align:center;align-items:center}.lesson-count{font-size:.85rem;color:#888;font-weight:500}.course-link{color:var(--mainblue);text-decoration:none;font-weight:bold;font-size:.9rem}.course-link:hover{text-decoration:underline}@-webkit-keyframes shimmer{0%{background-position:-1000px 0}100%{background-position:1000px 0}}@keyframes shimmer{0%{background-position:-1000px 0}100%{background-position:1000px 0}}.skeleton{-webkit-animation:shimmer 2s infinite linear;animation:shimmer 2s infinite linear;background:-webkit-gradient(linear,left top,right top,color-stop(4%,#f6f7f8),color-stop(25%,#edeef1),color-stop(36%,#f6f7f8));background:-o-linear-gradient(left,#f6f7f8 4%,#edeef1 25%,#f6f7f8 36%);background:linear-gradient(to right,#f6f7f8 4%,#edeef1 25%,#f6f7f8 36%);background-size:1000px 100%}.skeleton-text{height:15px;margin-bottom:10px;border-radius:4px}.skeleton-title{height:24px;width:70%;margin-bottom:15px}.skeleton-desc{width:100%}@media (max-width: 600px){.section-block{padding:50px 20px}h1{font-size:2rem}h2{font-size:1.6rem}}.container-footer-box p{font-size:14px!important}.final-container-btn{min-width:200px;white-space:nowrap}.final-container-btn > .btn{display:-webkit-box;display:-ms-flexbox;display:flex;gap:10px;padding:5px 10px 5px 18px!important}.center{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center;-webkit-box-align:center;-ms-flex-align:center;align-items:center}.mb-30{margin-bottom:30px}.text-grey-mb-20{margin-bottom:20px;color:#555}.bg-gradient-courses{background:-webkit-gradient(linear,left bottom,left top,from(var(--white)),to(var(--lightblue)));background:-o-linear-gradient(bottom,var(--white),var(--lightblue));background:linear-gradient(to top,var(--white),var(--lightblue))}.w-60{width:60%}.w-80px{width:80px}.text-center-mt-20{text-align:center;margin-top:20px}.text-grey-666{color:#666}.intro-text{font-size:1.2rem;text-align:center}.my-30{margin:30px 0}.d-block-mt-10{display:block;margin-top:10px}.cta{text-align:center}