.navbar{background:var(--dark-surface);border-bottom:1px solid var(--neon-purple);box-shadow:0 2px 20px #a855f71a;position:sticky;top:0;z-index:1000}.nav-container{max-width:1200px;margin:0 auto;padding:1rem 2rem;display:flex;justify-content:space-between;align-items:center}.nav-logo{display:flex;align-items:center;gap:.5rem;font-size:1.5rem;font-weight:700;color:var(--neon-cyan);text-shadow:0 0 10px var(--neon-cyan)}.logo-symbol{color:var(--neon-purple);text-shadow:0 0 10px var(--neon-purple)}.nav-menu{display:flex;list-style:none;gap:2rem;align-items:center}.nav-menu a{color:var(--text-secondary);font-weight:500;transition:all .3s ease}.nav-menu a:hover{color:var(--neon-cyan);text-shadow:0 0 8px var(--neon-cyan)}@media (max-width: 768px){.nav-container{flex-direction:column;gap:1rem}.nav-menu{flex-wrap:wrap;justify-content:center;gap:1rem}}.footer{background:var(--dark-surface);border-top:1px solid var(--neon-cyan);margin-top:4rem;padding:3rem 2rem 1rem}.footer-container{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:2rem;margin-bottom:2rem}.footer-section h3{color:var(--neon-cyan);margin-bottom:1rem;text-shadow:0 0 10px var(--neon-cyan)}.footer-section h4{color:var(--neon-purple);margin-bottom:1rem}.footer-section ul{list-style:none}.footer-section ul li{margin-bottom:.5rem}.footer-section p{color:var(--text-secondary);margin-bottom:.5rem}.footer-bottom{text-align:center;padding-top:2rem;border-top:1px solid rgba(168,85,247,.2);color:var(--text-secondary)}.home{width:100%}.hero{background:linear-gradient(135deg,#a855f71a,#06b6d41a);padding:8rem 2rem;text-align:center;border-bottom:2px solid var(--neon-purple);position:relative;overflow:hidden}.hero:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:radial-gradient(circle at 50% 50%,rgba(168,85,247,.1) 0%,transparent 70%);pointer-events:none}.hero-content{max-width:800px;margin:0 auto;position:relative;z-index:1}.hero-title{font-size:3.5rem;margin-bottom:1.5rem;line-height:1.2}.gradient-text{background:linear-gradient(135deg,var(--neon-purple),var(--neon-cyan));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;text-shadow:0 0 30px rgba(168,85,247,.5)}.hero-subtitle{font-size:1.25rem;color:var(--text-secondary);margin-bottom:2.5rem;line-height:1.6}.hero-cta{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}.btn{padding:1rem 2rem;border-radius:8px;font-weight:600;font-size:1rem;border:none;cursor:pointer;transition:all .3s ease}.btn-primary{background:linear-gradient(135deg,var(--neon-purple),var(--neon-cyan));color:#fff;box-shadow:0 4px 15px #a855f766}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px #a855f799}.btn-secondary{background:transparent;color:var(--neon-cyan);border:2px solid var(--neon-cyan)}.btn-secondary:hover{background:var(--neon-cyan);color:var(--dark-bg);box-shadow:0 0 20px var(--neon-cyan)}.container{max-width:1200px;margin:0 auto;padding:0 2rem}.intro-section{padding:5rem 0;background:var(--dark-surface)}.intro-section h2{font-size:2.5rem;margin-bottom:2rem;text-align:center;color:var(--neon-cyan);text-shadow:0 0 10px var(--neon-cyan)}.intro-content p{font-size:1.1rem;color:var(--text-secondary);margin-bottom:1.5rem;line-height:1.8;text-align:center;max-width:800px;margin-left:auto;margin-right:auto}.intro-features{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem;margin-top:3rem}.feature-card{background:var(--dark-surface-hover);padding:2rem;border-radius:12px;border:1px solid rgba(168,85,247,.3);transition:all .3s ease}.feature-card:hover{border-color:var(--neon-purple);box-shadow:0 0 20px #a855f74d;transform:translateY(-5px)}.feature-card h3{color:var(--neon-cyan);margin-bottom:1rem}.feature-card p{color:var(--text-secondary);margin:0}.courses-preview{padding:5rem 0}.courses-preview h2{font-size:2.5rem;margin-bottom:3rem;text-align:center;color:var(--neon-purple);text-shadow:0 0 10px var(--neon-purple)}.courses-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem;margin-bottom:3rem}.course-card{background:var(--dark-surface);padding:2rem;border-radius:12px;border:1px solid rgba(6,182,212,.3);transition:all .3s ease}.course-card:hover{border-color:var(--neon-cyan);box-shadow:0 0 25px #06b6d466;transform:translateY(-5px)}.course-card h3{color:var(--neon-cyan);margin-bottom:1rem;font-size:1.5rem}.course-card p{color:var(--text-secondary);margin-bottom:1.5rem;line-height:1.6}.course-link{color:var(--neon-purple);font-weight:600;display:inline-block}.course-link:hover{color:var(--neon-cyan);text-shadow:0 0 10px var(--neon-cyan)}.courses-cta{text-align:center}@media (max-width: 768px){.hero-title{font-size:2.5rem}.hero-subtitle{font-size:1rem}.intro-section h2,.courses-preview h2{font-size:2rem}}.courses-page{padding:3rem 0;min-height:80vh}.page-title{font-size:3rem;text-align:center;margin-bottom:1rem;background:linear-gradient(135deg,var(--neon-purple),var(--neon-cyan));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.page-subtitle{text-align:center;color:var(--text-secondary);font-size:1.2rem;margin-bottom:3rem}.filters-section{background:var(--dark-surface);padding:2rem;border-radius:12px;margin-bottom:3rem;display:flex;gap:1.5rem;flex-wrap:wrap;align-items:center;border:1px solid rgba(168,85,247,.3)}.search-box{flex:1;min-width:250px}.search-input{width:100%;padding:.75rem 1rem;background:var(--dark-surface-hover);border:1px solid var(--neon-cyan);border-radius:8px;color:var(--text-primary);font-size:1rem;transition:all .3s ease}.search-input:focus{outline:none;border-color:var(--neon-purple);box-shadow:0 0 10px #a855f74d}.filter-group{display:flex;align-items:center;gap:.5rem}.filter-group label{color:var(--text-secondary);font-weight:500}.filter-select{padding:.75rem 1rem;background:var(--dark-surface-hover);border:1px solid var(--neon-cyan);border-radius:8px;color:var(--text-primary);font-size:1rem;cursor:pointer;transition:all .3s ease}.filter-select:focus{outline:none;border-color:var(--neon-purple);box-shadow:0 0 10px #a855f74d}.courses-list{display:grid;gap:2rem}.course-item{background:var(--dark-surface);padding:2.5rem;border-radius:12px;border:1px solid rgba(6,182,212,.3);transition:all .3s ease}.course-item:hover{border-color:var(--neon-cyan);box-shadow:0 0 25px #06b6d466;transform:translateY(-5px)}.course-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem;flex-wrap:wrap;gap:1rem}.course-header h2{color:var(--neon-cyan);font-size:1.8rem;margin:0}.course-badge{background:linear-gradient(135deg,var(--neon-purple),var(--neon-cyan));color:#fff;padding:.5rem 1rem;border-radius:20px;font-size:.9rem;font-weight:600}.course-description{color:var(--text-secondary);font-size:1.1rem;line-height:1.6;margin-bottom:1.5rem}.course-meta{display:flex;gap:2rem;flex-wrap:wrap;margin-bottom:1.5rem;padding-bottom:1.5rem;border-bottom:1px solid rgba(168,85,247,.2)}.meta-item{color:var(--text-secondary)}.meta-item strong{color:var(--neon-purple);margin-right:.5rem}.meta-item.price{color:var(--neon-cyan);font-size:1.1rem}.meta-item.price strong{color:var(--neon-cyan)}.no-results{text-align:center;padding:3rem;color:var(--text-secondary);font-size:1.2rem}@media (max-width: 768px){.page-title{font-size:2rem}.filters-section,.filter-group{flex-direction:column;align-items:stretch}.course-header{flex-direction:column;align-items:flex-start}.course-meta{flex-direction:column;gap:1rem}}.course-details{padding:3rem 0;min-height:80vh}.back-link{display:inline-block;margin-bottom:2rem;color:var(--neon-cyan);font-weight:500}.back-link:hover{color:var(--neon-purple)}.course-hero{background:var(--dark-surface);padding:3rem;border-radius:12px;margin-bottom:3rem;border:1px solid rgba(168,85,247,.3)}.course-hero h1{font-size:2.5rem;color:var(--neon-cyan);margin-bottom:1rem;text-shadow:0 0 10px var(--neon-cyan)}.course-hero .course-description{font-size:1.2rem;color:var(--text-secondary);margin-bottom:2rem;line-height:1.6}.course-info{display:flex;gap:1rem;flex-wrap:wrap}.info-badge{background:var(--dark-surface-hover);padding:.75rem 1.5rem;border-radius:20px;border:1px solid var(--neon-cyan);color:var(--text-primary);font-weight:500}.info-badge.price{background:linear-gradient(135deg,var(--neon-purple),var(--neon-cyan));border:none;color:#fff}.course-content{display:grid;grid-template-columns:1fr 350px;gap:3rem}.main-content{display:flex;flex-direction:column;gap:3rem}section{background:var(--dark-surface);padding:2.5rem;border-radius:12px;border:1px solid rgba(6,182,212,.3)}section h2{color:var(--neon-purple);margin-bottom:1.5rem;font-size:1.8rem;text-shadow:0 0 10px var(--neon-purple)}.modules-list{list-style:decimal;padding-left:1.5rem;color:var(--text-secondary);line-height:2}.modules-list li{margin-bottom:.5rem}.outcomes-list{list-style:none;padding:0;color:var(--text-secondary);line-height:2}.outcomes-list li{padding-left:1.5rem;position:relative;margin-bottom:.5rem}.outcomes-list li:before{content:"✓";position:absolute;left:0;color:var(--neon-cyan);font-weight:700}.instructor-card{display:flex;gap:1.5rem;align-items:center}.instructor-avatar{font-size:4rem;width:80px;height:80px;display:flex;align-items:center;justify-content:center;background:var(--dark-surface-hover);border-radius:50%;border:2px solid var(--neon-purple)}.instructor-info h3{color:var(--neon-cyan);margin-bottom:.5rem}.instructor-info p{color:var(--text-secondary);line-height:1.6}.faq-item{margin-bottom:1.5rem;padding-bottom:1.5rem;border-bottom:1px solid rgba(168,85,247,.2)}.faq-item:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0}.faq-item h3{color:var(--neon-cyan);margin-bottom:.75rem;font-size:1.1rem}.review-item{background:var(--dark-surface-hover);padding:1.5rem;border-radius:8px;margin-bottom:1rem;border:1px solid rgba(6,182,212,.2)}.review-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:.75rem}.review-header strong{color:var(--neon-purple)}.rating{color:gold;font-size:1.2rem}.review-item p{color:var(--text-secondary);line-height:1.6}.sidebar{position:sticky;top:100px;height:fit-content}.enrollment-card{background:var(--dark-surface);padding:2rem;border-radius:12px;border:2px solid var(--neon-purple);box-shadow:0 0 20px #a855f74d}.enrollment-card h3{color:var(--neon-cyan);margin-bottom:1rem;text-align:center}.price-display{font-size:2rem;color:var(--neon-purple);text-align:center;margin-bottom:1.5rem;font-weight:700;text-shadow:0 0 10px var(--neon-purple)}.btn-block{width:100%;display:block;text-align:center;margin-bottom:.75rem}@media (max-width: 968px){.course-content{grid-template-columns:1fr}.sidebar{position:static}.course-hero h1{font-size:2rem}}.pricing-page{padding:3rem 0;min-height:80vh}.pricing-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;margin-bottom:5rem}.pricing-card{background:var(--dark-surface);padding:3rem 2rem;border-radius:12px;border:2px solid rgba(6,182,212,.3);position:relative;transition:all .3s ease;display:flex;flex-direction:column}.pricing-card:hover{transform:translateY(-10px);box-shadow:0 10px 40px #06b6d44d}.pricing-card.popular{border-color:var(--neon-purple);box-shadow:0 0 30px #a855f766;transform:scale(1.05)}.pricing-card.popular:hover{transform:scale(1.05) translateY(-10px)}.popular-badge{position:absolute;top:-15px;left:50%;transform:translate(-50%);background:linear-gradient(135deg,var(--neon-purple),var(--neon-cyan));color:#fff;padding:.5rem 1.5rem;border-radius:20px;font-size:.9rem;font-weight:600;box-shadow:0 4px 15px #a855f780}.pricing-card h2{color:var(--neon-cyan);font-size:2rem;margin-bottom:1.5rem;text-align:center}.price-section{text-align:center;margin-bottom:2rem}.price{font-size:3rem;color:var(--neon-purple);font-weight:700;text-shadow:0 0 10px var(--neon-purple)}.period{color:var(--text-secondary);font-size:1rem;margin-left:.5rem}.features-list{list-style:none;padding:0;margin-bottom:2rem;flex:1}.features-list li{padding:.75rem 0;color:var(--text-secondary);display:flex;align-items:start;gap:.75rem}.check-icon{color:var(--neon-cyan);font-weight:700;font-size:1.2rem;flex-shrink:0}.pricing-faq{margin-top:5rem}.pricing-faq h2{text-align:center;font-size:2.5rem;color:var(--neon-purple);margin-bottom:3rem;text-shadow:0 0 10px var(--neon-purple)}.faq-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem}.faq-item{background:var(--dark-surface);padding:2rem;border-radius:12px;border:1px solid rgba(168,85,247,.3)}.faq-item h3{color:var(--neon-cyan);margin-bottom:1rem;font-size:1.2rem}.faq-item p{color:var(--text-secondary);line-height:1.6}@media (max-width: 768px){.pricing-card.popular{transform:scale(1)}.pricing-card.popular:hover{transform:translateY(-10px)}.price{font-size:2.5rem}}.about-page{padding:3rem 0;min-height:80vh}.about-page section{margin-bottom:5rem}.about-page h2{font-size:2.5rem;margin-bottom:2rem;text-align:center;background:linear-gradient(135deg,var(--neon-purple),var(--neon-cyan));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.mission-content{background:var(--dark-surface);padding:3rem;border-radius:12px;border:1px solid rgba(168,85,247,.3)}.mission-content p{font-size:1.1rem;color:var(--text-secondary);line-height:1.8;margin-bottom:1.5rem}.mission-content p:last-child{margin-bottom:0}.team-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem}.team-card{background:var(--dark-surface);padding:2.5rem 2rem;border-radius:12px;border:1px solid rgba(6,182,212,.3);text-align:center;transition:all .3s ease}.team-card:hover{border-color:var(--neon-cyan);box-shadow:0 0 25px #06b6d466;transform:translateY(-5px)}.team-avatar{font-size:5rem;margin-bottom:1.5rem;display:inline-block;background:var(--dark-surface-hover);width:120px;height:120px;border-radius:50%;display:flex;align-items:center;justify-content:center;border:3px solid var(--neon-purple);margin:0 auto 1.5rem}.team-card h3{color:var(--neon-cyan);font-size:1.5rem;margin-bottom:.5rem}.team-role{color:var(--neon-purple);font-weight:600;margin-bottom:1rem}.team-bio{color:var(--text-secondary);line-height:1.6}.timeline{position:relative;padding-left:2rem;max-width:800px;margin:0 auto}.timeline:before{content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:linear-gradient(180deg,var(--neon-purple),var(--neon-cyan))}.timeline-item{position:relative;margin-bottom:3rem;padding-left:3rem}.timeline-item:before{content:"";position:absolute;left:-1.5rem;top:.5rem;width:16px;height:16px;border-radius:50%;background:var(--neon-cyan);box-shadow:0 0 10px var(--neon-cyan)}.timeline-year{color:var(--neon-purple);font-size:1.5rem;font-weight:700;margin-bottom:.5rem;text-shadow:0 0 10px var(--neon-purple)}.timeline-content{background:var(--dark-surface);padding:1.5rem;border-radius:8px;border:1px solid rgba(6,182,212,.3)}.timeline-content p{color:var(--text-secondary);line-height:1.6;margin:0}.values-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem}.value-card{background:var(--dark-surface);padding:2.5rem;border-radius:12px;border:1px solid rgba(168,85,247,.3);text-align:center;transition:all .3s ease}.value-card:hover{border-color:var(--neon-purple);box-shadow:0 0 25px #a855f766;transform:translateY(-5px)}.value-card h3{color:var(--neon-cyan);font-size:1.5rem;margin-bottom:1rem}.value-card p{color:var(--text-secondary);line-height:1.6}@media (max-width: 768px){.timeline{padding-left:1.5rem}.timeline-item{padding-left:2rem}.about-page h2{font-size:2rem}}.contact-page{padding:3rem 0;min-height:80vh}.contact-content{display:grid;grid-template-columns:1fr 1.5fr;gap:3rem;margin-top:3rem}.contact-info h2,.contact-form-section h2{color:var(--neon-cyan);font-size:2rem;margin-bottom:2rem;text-shadow:0 0 10px var(--neon-cyan)}.info-card{background:var(--dark-surface);padding:2rem;border-radius:12px;border:1px solid rgba(168,85,247,.3);margin-bottom:1.5rem;transition:all .3s ease}.info-card:hover{border-color:var(--neon-purple);box-shadow:0 0 20px #a855f74d}.info-card h3{color:var(--neon-purple);margin-bottom:1rem;font-size:1.2rem}.info-card p{color:var(--text-secondary);margin-bottom:.5rem;line-height:1.6}.contact-form-section{background:var(--dark-surface);padding:2.5rem;border-radius:12px;border:1px solid rgba(6,182,212,.3)}.contact-form{display:flex;flex-direction:column;gap:1.5rem}.form-group{display:flex;flex-direction:column;gap:.5rem}.form-group label{color:var(--neon-cyan);font-weight:500}.form-input,.form-textarea{padding:.75rem 1rem;background:var(--dark-surface-hover);border:1px solid var(--neon-cyan);border-radius:8px;color:var(--text-primary);font-size:1rem;font-family:inherit;transition:all .3s ease}.form-input:focus,.form-textarea:focus{outline:none;border-color:var(--neon-purple);box-shadow:0 0 10px #a855f74d}.form-textarea{resize:vertical;min-height:120px}@media (max-width: 968px){.contact-content{grid-template-columns:1fr}}.legal-page{padding:3rem 0;min-height:80vh}.legal-section{background:var(--dark-surface);padding:3rem;border-radius:12px;border:1px solid rgba(168,85,247,.3);margin-bottom:3rem}.legal-section h2{color:var(--neon-cyan);font-size:2rem;margin-bottom:2rem;text-shadow:0 0 10px var(--neon-cyan)}.legal-content{color:var(--text-secondary);line-height:1.8}.legal-content h3{color:var(--neon-purple);font-size:1.3rem;margin-top:2rem;margin-bottom:1rem}.legal-content p{margin-bottom:1rem}.legal-content ul{margin-left:2rem;margin-bottom:1.5rem}.legal-content li{margin-bottom:.5rem}.legal-content strong{color:var(--neon-cyan)}.legal-content em{color:var(--text-secondary);font-style:italic}@media (max-width: 768px){.legal-section{padding:2rem}.legal-section h2{font-size:1.5rem}}.neural-logic-page{padding:3rem 0;min-height:80vh}.content-section{background:var(--dark-surface);padding:3rem;border-radius:12px;border:1px solid rgba(168,85,247,.3);margin-bottom:3rem}.content-section h2{color:var(--neon-cyan);font-size:2rem;margin-bottom:1.5rem;text-shadow:0 0 10px var(--neon-cyan)}.content-section p{color:var(--text-secondary);line-height:1.8;font-size:1.1rem;margin-bottom:1rem}.concepts-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;margin-top:2rem}.concept-card{background:var(--dark-surface-hover);padding:2rem;border-radius:12px;border:1px solid rgba(6,182,212,.3);transition:all .3s ease}.concept-card:hover{border-color:var(--neon-cyan);box-shadow:0 0 20px #06b6d466;transform:translateY(-5px)}.concept-card h3{color:var(--neon-purple);margin-bottom:1rem;font-size:1.3rem}.concept-card p{color:var(--text-secondary);line-height:1.6;margin:0}.learning-process{display:flex;flex-direction:column;gap:2rem;margin-top:2rem}.process-step{display:flex;gap:2rem;align-items:start;background:var(--dark-surface-hover);padding:2rem;border-radius:12px;border:1px solid rgba(168,85,247,.3);transition:all .3s ease}.process-step:hover{border-color:var(--neon-purple);box-shadow:0 0 20px #a855f74d}.step-number{background:linear-gradient(135deg,var(--neon-purple),var(--neon-cyan));color:#fff;width:50px;height:50px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:700;flex-shrink:0;box-shadow:0 0 15px #a855f780}.step-content h3{color:var(--neon-cyan);margin-bottom:.5rem;font-size:1.2rem}.step-content p{color:var(--text-secondary);line-height:1.6;margin:0}.network-types{display:grid;gap:1.5rem;margin-top:2rem}.type-item{background:var(--dark-surface-hover);padding:2rem;border-radius:12px;border-left:4px solid var(--neon-purple);transition:all .3s ease}.type-item:hover{border-left-color:var(--neon-cyan);box-shadow:0 0 15px #06b6d44d}.type-item h3{color:var(--neon-cyan);margin-bottom:1rem;font-size:1.3rem}.type-item p{color:var(--text-secondary);line-height:1.6;margin:0}.applications-list{list-style:none;padding:0;margin-top:1.5rem}.applications-list li{background:var(--dark-surface-hover);padding:1.5rem;margin-bottom:1rem;border-radius:8px;border:1px solid rgba(6,182,212,.2);color:var(--text-secondary);line-height:1.6}.applications-list li strong{color:var(--neon-purple)}.content-section a{color:var(--neon-cyan);text-decoration:underline}.content-section a:hover{color:var(--neon-purple)}@media (max-width: 768px){.content-section{padding:2rem}.content-section h2{font-size:1.5rem}.process-step{flex-direction:column;align-items:center;text-align:center}.concepts-grid{grid-template-columns:1fr}}.App{min-height:100vh;display:flex;flex-direction:column}main{flex:1}*{margin:0;padding:0;box-sizing:border-box}:root{--neon-purple: #a855f7;--neon-cyan: #06b6d4;--dark-bg: #0a0a0f;--dark-surface: #1a1a2e;--dark-surface-hover: #2a2a3e;--text-primary: #ffffff;--text-secondary: #b0b0b0}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:var(--dark-bg);color:var(--text-primary);line-height:1.6}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}a{color:var(--neon-cyan);text-decoration:none;transition:all .3s ease}a:hover{color:var(--neon-purple);text-shadow:0 0 10px var(--neon-purple)}button{cursor:pointer;transition:all .3s ease}