:root{--primary-color:#f28482;--secondary-color:#3d405b;--bg-light:#fffbf5;--white:#fff;--text-dark:#3d405b;--text-muted:#666;--font-family:"Inter", sans-serif}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font-family);background-color:var(--white);color:var(--text-dark);line-height:1.6;overflow-x:hidden}section{padding:100px 0}.container{max-width:1200px;margin:0 auto;padding:0 20px}h1,h2,h3,h4{font-weight:800;line-height:1.2}span{color:var(--primary-color)}.btn{cursor:pointer;border:none;border-radius:50px;padding:16px 36px;font-weight:700;text-decoration:none;transition:all .3s;display:inline-block}.btn-primary{background-color:var(--primary-color);color:#fff;box-shadow:0 4px 15px #f284824d}.btn-primary:hover{transform:translateY(-3px);box-shadow:0 8px 25px #f2848266}.reveal{opacity:0;transition:all .8s ease-out;transform:translateY(30px)}.reveal.visible{opacity:1;transform:translateY(0)}.header-spacer{height:80px}.student-hero{background-color:var(--bg-light);text-align:center;padding:120px 0 80px}.student-hero h1{color:var(--secondary-color);margin-bottom:25px;font-size:clamp(2.5rem,5vw,4rem)}.student-hero p{color:var(--text-muted);max-width:700px;margin:0 auto 40px;font-size:1.15rem}.tablet-wrapper{perspective:1500px;justify-content:center;margin-top:60px;display:flex}.tablet-device{background:#222;border:12px solid #333;border-radius:30px;width:700px;height:500px;position:relative;overflow:hidden;transform:rotateX(5deg);box-shadow:0 30px 80px #00000026}.tablet-camera{z-index:10;background:#111;border-radius:50%;width:10px;height:10px;position:absolute;top:15px;left:50%;transform:translate(-50%)}.stu-ui{background:#f8f9fa;grid-template-columns:200px 1fr;height:100%;display:grid}.stu-sidebar{background:#fff;border-right:1px solid #eee;padding:20px}.stu-nav-item{color:#666;border-radius:8px;align-items:center;gap:10px;margin-bottom:5px;padding:10px;font-size:.85rem;display:flex}.stu-nav-item.active{color:#1565c0;background:#e3f2fd;font-weight:600}.stu-content{padding:30px;overflow-y:hidden}.welcome-banner{color:#fff;background:linear-gradient(135deg,#3d405b,#1a1a2e);border-radius:15px;justify-content:space-between;align-items:center;margin-bottom:20px;padding:20px;display:flex}.continue-watching{background:#fff;border:1px solid #eee;border-radius:12px;align-items:center;gap:15px;margin-bottom:20px;padding:15px;display:flex}.thumb-ph{color:#fff;background:#333;border-radius:6px;place-items:center;width:80px;height:50px;font-size:.8rem;display:grid}.features-grid{grid-template-columns:repeat(2,1fr);gap:24px;margin-top:40px;display:grid}@media (width<=768px){.features-grid{grid-template-columns:1fr}}.feat-card{background:#fff;border:1px solid #eee;border-radius:16px;padding:30px;transition:all .3s}.feat-card:hover{border-color:var(--primary-color);transform:translateY(-5px)}.feat-icon{color:var(--primary-color);margin-bottom:20px;font-size:2rem}.feat-card h3{color:var(--secondary-color);margin-bottom:10px}.feat-card p{color:var(--text-muted);font-size:.95rem}.performance-section{background:#fff}.split-grid{grid-template-columns:1fr 1fr;align-items:center;gap:60px;display:grid}.report-card-mockup{background:#fff;border:1px solid #eee;border-radius:20px;max-width:400px;margin:0 auto;padding:30px;position:relative;box-shadow:0 20px 50px #0000000d}.rank-badge{color:#fff;background:#f1c40f;border-radius:50%;place-items:center;width:60px;height:60px;font-size:1.2rem;font-weight:800;display:grid;position:absolute;top:-15px;right:-15px;transform:rotate(15deg);box-shadow:0 5px 15px #f1c40f66}.score-bar-group{margin-top:20px}.sb-label{justify-content:space-between;margin-bottom:5px;font-size:.85rem;font-weight:600;display:flex}.sb-track{background:#eee;border-radius:4px;height:8px;margin-bottom:15px;overflow:hidden}.sb-fill{border-radius:4px;height:100%}.gamification-section{background:var(--bg-light)}.streak-card{text-align:center;background:#fff;border:1px solid #eee;border-radius:15px;flex-direction:column;justify-content:center;align-items:center;height:100%;padding:25px;transition:all .3s;display:flex}.streak-card:hover{border-color:#f39c12;transform:translateY(-5px)}.fire-icon{color:#e67e22;margin-bottom:15px;font-size:3rem;animation:2s infinite pulse}@keyframes pulse{0%{opacity:1;transform:scale(1)}50%{opacity:.8;transform:scale(1.1)}to{opacity:1;transform:scale(1)}}.community-section{background:#fff}.forum-mockup{background:#f8f9fa;border-radius:15px;max-width:500px;margin:0 auto;padding:25px}.forum-post{background:#fff;border-radius:10px;margin-bottom:15px;padding:15px;box-shadow:0 2px 5px #0000000d}.user-pill{align-items:center;gap:10px;margin-bottom:8px;display:flex}.avatar{background:#ddd;border-radius:50%;width:30px;height:30px}.exam-section{background:var(--bg-light);text-align:center;padding:80px 0}.exam-visual{text-align:left;background:#fff;border:1px solid #ddd;border-radius:10px;max-width:600px;margin:40px auto;padding:20px}.q-palette{justify-content:center;gap:5px;margin-top:15px;display:flex}.qp-box{border-radius:4px;place-items:center;width:30px;height:30px;font-size:.8rem;display:grid}.qp-green{color:#fff;background:#2ecc71}.qp-red{color:#fff;background:#e74c3c}.qp-gray{color:#555;background:#eee}.faq-grid{grid-template-columns:1fr 1fr;gap:30px;margin-top:40px;display:grid}.faq-item{background:#f8f9fa;border-radius:15px;padding:25px}.faq-item h4{color:var(--secondary-color);margin-bottom:10px}@media (width<=992px){.tablet-device{width:100%;height:400px}.stu-ui{grid-template-columns:50px 1fr}.stu-nav-item span{display:none}.stu-nav-item{justify-content:center}.split-grid,.faq-grid,.features-grid{text-align:center;grid-template-columns:1fr;gap:40px}.hero-grid{text-align:center}.gamification-grid{grid-template-columns:1fr}}.stu-view{height:100%;animation:.4s ease-out fadeIn;display:none}.stu-view.active-view{display:block}.course-card{cursor:pointer;background:#fff;border:1px solid #eee;border-radius:12px;align-items:center;gap:15px;margin-bottom:12px;padding:15px;transition:all .2s;display:flex}.course-card:hover{border-color:var(--primary-color);transform:translate(3px)}.course-icon{border-radius:10px;place-items:center;width:45px;height:45px;font-size:1.1rem;display:grid}.result-row{background:#fff;border:1px solid #eee;border-radius:10px;justify-content:space-between;align-items:center;margin-bottom:10px;padding:15px;display:flex}.tablet-device{will-change:transform;transform-style:preserve-3d;transition:transform .1s ease-out}.stu-ui{transform:translateZ(20px)}.store-section{background:#fff}.product-card{background:#fff;border:1px solid #eee;border-radius:16px;transition:all .3s;position:relative;overflow:hidden}.product-card:hover{transform:translateY(-8px);box-shadow:0 15px 30px #00000014}.prod-img-box{color:#ddd;background:#f8f9fa;place-items:center;height:180px;font-size:3rem;display:grid;position:relative}.prod-details{padding:20px}.prod-price{color:#3d405b;margin-top:10px;font-size:1.2rem;font-weight:800}.prod-tag{background:#fff;border-radius:20px;padding:4px 10px;font-size:.75rem;font-weight:700;position:absolute;top:15px;left:15px;box-shadow:0 4px 10px #0000000d}.btn-sm{background:var(--bg-light);color:var(--secondary-color);border-radius:30px;margin-top:15px;padding:8px 20px;font-size:.85rem;font-weight:600;text-decoration:none;transition:all .2s;display:inline-block}.product-card:hover .btn-sm{background:var(--secondary-color);color:#fff}.live-mentor-section{background:var(--bg-light)}.live-mockup{aspect-ratio:16/9;background:#222;border-radius:12px;justify-content:center;align-items:center;display:flex;position:relative;overflow:hidden;box-shadow:0 20px 50px #00000026}.live-badge{color:#fff;background:#e74c3c;border-radius:4px;align-items:center;gap:6px;padding:5px 12px;font-size:.8rem;font-weight:700;animation:1.5s infinite pulse-red;display:flex;position:absolute;top:15px;left:15px}@keyframes pulse-red{0%{opacity:1}50%{opacity:.7}to{opacity:1}}.mentor-card{text-align:center;background:#fff;border:1px solid #eee;border-radius:16px;max-width:350px;margin:0 auto;padding:25px;box-shadow:0 15px 40px #0000000d}.m-avatar{color:#1565c0;background:#e3f2fd;border-radius:50%;place-items:center;width:80px;height:80px;margin:0 auto 15px;font-size:1.5rem;display:grid}.slot-pill{color:#666;cursor:pointer;border:1px solid #eee;border-radius:8px;margin:5px;padding:6px 12px;font-size:.8rem;transition:all .2s;display:inline-block}.slot-pill:hover,.slot-pill.selected{background:var(--secondary-color);color:#fff;border-color:var(--secondary-color)}