:root{--color-bg-cream:#F7F5F0;--color-navy-dark:#0A192F;--color-cobalt-accent:#0047FF;--color-text-body:#1C2331;--color-metal-surface:#112240;--color-white:#FFFFFF;--bg-color:var(--color-bg-cream);--text-color:var(--color-text-body);--card-bg:var(--color-white);--header-bg:rgba(247, 245, 240, 0.85);--font-family:'GT America', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;--transition-speed:0.3s}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);font-weight:400;background-color:var(--bg-color);color:var(--text-color);font-size:18px;line-height:1.6}h1,h2,h3,h4,h5,h6{font-family:var(--font-family);font-weight:700;color:var(--color-navy-dark)}h1{font-size:3rem;line-height:1.1}h2{font-size:2rem;line-height:1.2}h3{font-size:1.5rem;line-height:1.3}p{line-height:1.6}a{color:var(--color-cobalt-accent);text-decoration:none;transition:color var(--transition-speed)}a:hover{color:var(--color-navy-dark)}.container{max-width:1200px;margin:0 auto;padding:0 20px}.header{position:sticky;top:0;z-index:1000;background-color:var(--header-bg);backdrop-filter:blur(12px)saturate(180%);-webkit-backdrop-filter:blur(12px)saturate(180%);border-bottom:1px solid rgba(10,25,47,8%);height:100px;display:flex;align-items:center}.logo img{height:120px;width:auto;cursor:pointer;transition:opacity var(--transition-speed)}.logo img:hover{opacity:.8}.hero{padding:100px 0;display:flex;align-items:center;justify-content:space-between;gap:60px;position:relative}.hero-content{flex:1}.hero-title{font-size:3rem;line-height:1.1;margin-bottom:20px;color:var(--color-navy-dark)}.hero-subtitle{font-size:1.125rem;font-weight:300;margin-bottom:30px;color:var(--color-text-body);opacity:.85}.hero-visual{flex:1;display:flex;justify-content:center}.dot-grid-bg{background-image:radial-gradient(rgba(10,25,47,6%) 1px,transparent 1px);background-size:20px 20px}.dot-grid-bg-light{background-image:radial-gradient(rgba(247,245,240,.12) 1px,transparent 1px);background-size:20px 20px}.diagonal-lines-bg{background-image:repeating-linear-gradient( 45deg,transparent,transparent 8px,rgba(10,25,47,3%) 8px,rgba(10,25,47,3%) 9px )}.cta-button{background-color:var(--color-cobalt-accent);color:var(--color-white);padding:14px 28px;border-radius:6px;font-weight:700;font-size:1rem;display:inline-block;transition:background-color var(--transition-speed),box-shadow var(--transition-speed);border:none;cursor:pointer;text-decoration:none;line-height:1}.cta-button:hover{background-color:#0038cc;box-shadow:0 4px 16px rgba(0,71,255,.3);color:var(--color-white)}.cta-button-outline{background-color:transparent;color:var(--color-navy-dark);border:2px solid var(--color-navy-dark);padding:12px 26px;border-radius:6px;font-weight:700;font-size:1rem;display:inline-block;transition:all var(--transition-speed);cursor:pointer;text-decoration:none;line-height:1}.cta-button-outline:hover{background-color:var(--color-navy-dark);color:var(--color-white)}.trends{padding:80px 0}.section-title{margin-bottom:40px;font-size:2rem;text-align:left;border-left:4px solid var(--color-cobalt-accent);padding-left:20px}.carousel{display:flex;gap:24px;overflow-x:auto;padding-bottom:20px;scrollbar-width:thin;scrollbar-color:var(--color-cobalt-accent)transparent}.card{min-width:300px;background-color:var(--card-bg);border-radius:12px;overflow:hidden;box-shadow:0 2px 16px rgba(10,25,47,6%);transition:transform var(--transition-speed),box-shadow var(--transition-speed);border:1px solid rgba(10,25,47,5%)}.card:hover{transform:translateY(-6px);box-shadow:0 12px 32px rgba(10,25,47,.1)}.card-img{height:200px;background-color:var(--color-bg-cream);display:flex;align-items:center;justify-content:center;font-size:3rem}.card-content{padding:24px}.profile-header{display:flex;gap:50px;align-items:center;padding:80px 0}.profile-img-container{width:300px;height:300px;border-radius:16px;overflow:hidden;box-shadow:0 16px 40px rgba(10,25,47,.12);background-color:var(--color-bg-cream);position:relative}.profile-img{width:100%;height:100%;object-fit:cover}.footer{background-color:var(--color-navy-dark);color:var(--color-white);padding:60px 0;margin-top:100px;background-image:radial-gradient(rgba(247,245,240,8%) 1px,transparent 1px);background-size:20px 20px}.article-layout{display:flex;gap:50px;padding:80px 0}.article-main{flex:3;max-width:800px;margin:0 auto}.article-sidebar{flex:1;position:sticky;top:100px;height:fit-content}.focused-text{font-size:1.125rem;color:var(--text-color);line-height:1.8}.focused-text h2,.focused-text h3{margin:40px 0 20px}.focused-text p{margin-bottom:30px}.toc{border-left:2px solid var(--color-cobalt-accent);padding-left:20px}.toc ul{list-style:none;font-size:.9rem}.toc li{margin-bottom:10px}.toc a{color:var(--text-color);opacity:.7}.toc a:hover{opacity:1;color:var(--color-cobalt-accent)}.filter-pills{display:flex;gap:15px;margin-bottom:40px;flex-wrap:wrap}.pill{padding:6px 16px;border-radius:6px;background-color:var(--color-bg-cream);border:1px solid rgba(10,25,47,.12);color:var(--color-navy-dark);cursor:pointer;font-weight:600;font-size:.85rem;transition:all var(--transition-speed)}.pill.active,.pill:hover{background-color:var(--color-cobalt-accent);border-color:var(--color-cobalt-accent);color:var(--color-white)}.course-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(350px,1fr));gap:30px}.course-card{background-color:var(--card-bg);border-radius:12px;overflow:hidden;box-shadow:0 2px 16px rgba(10,25,47,6%);transition:all var(--transition-speed);position:relative;border:1px solid rgba(10,25,47,5%)}.course-card:hover{transform:translateY(-6px);box-shadow:0 12px 32px rgba(10,25,47,.1)}.course-video-thumb{height:200px;background-color:var(--color-navy-dark);position:relative;display:flex;align-items:center;justify-content:center}.play-button{width:56px;height:56px;background-color:rgba(255,255,255,.2);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.5rem;color:#fff;backdrop-filter:blur(5px);transition:transform .3s}.course-card:hover .play-button{transform:scale(1.15)}.course-info{padding:24px}.course-meta{display:flex;justify-content:space-between;font-size:.8rem;opacity:.6;margin-bottom:15px}.badge-price{position:absolute;top:16px;right:16px;padding:4px 14px;border-radius:6px;font-weight:700;font-size:.85rem;z-index:10}.badge-free{background-color:#10b981;color:#fff}.badge-paid{background-color:var(--color-navy-dark);color:#fff}.search-container{display:flex;align-items:center;position:relative}.search-input{width:0;opacity:0;padding:8px 15px;border-radius:6px;border:1px solid rgba(10,25,47,.15);transition:width .4s,opacity .4s;outline:none;background-color:var(--card-bg);color:var(--text-color);font-family:var(--font-family)}.search-container:hover .search-input,.search-input:focus{width:200px;opacity:1}.timeline{position:relative;max-width:800px;margin:50px auto;padding-left:50px}.timeline::before{content:'';position:absolute;left:0;top:0;height:100%;width:3px;background-color:var(--color-navy-dark)}.timeline-item{position:relative;margin-bottom:50px}.timeline-node{position:absolute;left:-58px;top:0;width:18px;height:18px;border-radius:50%;background-color:var(--color-cobalt-accent);border:3px solid var(--bg-color);cursor:pointer;transition:transform .3s}.timeline-item:hover .timeline-node{transform:scale(1.4)}.timeline-content{background-color:var(--card-bg);padding:20px;border-radius:10px;box-shadow:0 4px 12px rgba(10,25,47,6%)}.skills-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:30px;margin-top:50px}.skill-bar{background-color:rgba(10,25,47,8%);height:6px;border-radius:3px;margin-top:10px;position:relative}.skill-progress{background-color:var(--color-cobalt-accent);height:100%;border-radius:3px;width:0;transition:width 1s ease-out}.floating-button{position:fixed;bottom:40px;right:40px;background-color:var(--color-navy-dark);color:#fff;width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 24px rgba(10,25,47,.2);z-index:100;cursor:pointer;transition:background-color .3s}.floating-button:hover{background-color:var(--color-cobalt-accent)}.comments-section{margin-top:80px;padding-top:50px;border-top:1px solid rgba(10,25,47,8%)}.comment-bubble{background-color:var(--color-white);padding:20px;border-radius:12px;border-bottom-left-radius:0;box-shadow:0 4px 12px rgba(10,25,47,5%);margin-bottom:20px;max-width:80%}.comment-meta{font-weight:700;font-size:.8rem;margin-bottom:5px;color:var(--color-cobalt-accent)}@media(max-width:992px){h1{font-size:2.25rem}h2{font-size:1.75rem}h3{font-size:1.25rem}body{font-size:16px}.hero,.profile-header,.article-layout{flex-direction:column;text-align:center}.article-sidebar{display:none}.hero-title{font-size:2.25rem}.profile-img-container{margin:0 auto 30px}}@media(max-width:768px){.carousel{gap:16px}.card{min-width:260px}}