*{margin:0;padding:0;box-sizing:border-box}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.6;color:#333;background-color:#fff;font-family:Arial,Helvetica,sans-serif}#root{min-height:100vh;display:flex;flex-direction:column}a{color:#2563eb;text-decoration:none;transition:color .2s}a:hover{color:#1e40af}.container{margin:0 auto;padding:0 1rem;width:100%}header{background-color:#fff}nav{display:flex;justify-content:space-between;align-items:center;padding:1.5rem 1rem;max-width:1200px;margin:0 auto}nav a{color:#666;font-weight:400;padding:.5rem 1rem;transition:color .2s;font-size:.95rem}nav a:hover{color:#333}.logo{font-size:1.5rem;font-weight:600;color:#111;letter-spacing:-.02em}.logo-subtitle{display:block;font-size:.75rem;font-weight:400;color:#999;margin-top:.25rem}.nav-links{display:flex;gap:.5rem}main{flex:1;padding:3rem 1rem;width:100%;font-family:Helvetica,Arial,sans-serif}footer{border-top:1px solid #e5e7eb;margin-top:4rem}footer .container{padding:2rem 1rem;text-align:center;color:#6b7280}h1{font-size:2rem;font-weight:700;margin-bottom:1.5rem;color:#111}h2{font-size:1.6rem;font-weight:700;margin-bottom:1rem;color:#111}h3{font-size:1.2rem;font-weight:600;margin-bottom:.75rem;color:#111}.tags{display:flex;flex-wrap:wrap;gap:.4rem;margin-bottom:.75rem}.tag{background:#f0f0f0;color:#666;padding:.1rem .6rem;border-radius:4px;font-size:.7rem}.loading,.error{text-align:center;padding:3rem 1rem}.loading p{font-size:1.25rem;color:#6b7280}.error h1{font-size:1.875rem;font-weight:700;margin-bottom:1rem}.error p{color:#6b7280;margin-bottom:1rem}.masonry-container{display:flex;gap:10px;width:100%;padding:0 4em;align-items:flex-center}.masonry-column{flex:1;display:flex;flex-direction:column;gap:0}.post-card-link{text-decoration:none;color:inherit;display:block;width:100%;transition:transform .2s ease;border-left:1px solid transparent}.post-card{background:transparent;border:none;padding:16px;text-align:left;opacity:0;transform:translateY(64px);will-change:transform,opacity;animation:postEntrance 1s cubic-bezier(.22,.9,.32,1) forwards;animation-delay:calc(sqrt(var(--order, 0)) * .2s + (var(--order, 0) * 50ms));margin-bottom:20px;border-left:1px solid transparent}.post-card:hover{box-shadow:0 0 24px #0000001a}.post-card-image{width:100%;height:auto;display:block;margin-bottom:.7rem}.post-card-content{padding:0}.post-card h2{margin-top:0;margin-bottom:.5rem;font-size:16px;font-weight:600;line-height:1.4;color:#333}.post-card h2 a{color:#333;text-decoration:none}.post-excerpt{color:#666;line-height:1.6;margin-bottom:.75rem;font-size:13px;line-height:1.2rem;text-align:justify}.post-meta{color:#999;font-size:12px;margin-bottom:.75rem}@media (max-width: 768px){.masonry-container{column-gap:15px;padding:1em}.post-card{margin-bottom:15px}}@media (prefers-reduced-motion: reduce){.post-card{animation:none!important;transition:none!important;transform:none!important;opacity:1!important}}.skills-cloud-container{margin:2rem 0}.category-filter{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:2rem;justify-content:center}.category-btn{padding:.5rem 1rem;border:2px solid #e5e7eb;background:#fff;border-radius:.5rem;cursor:pointer;transition:all .3s ease;font-size:.875rem;font-weight:500}.category-btn:hover{border-color:#3b82f6;color:#3b82f6;transform:translateY(-2px)}.category-btn.active{background:#3b82f6;color:#fff;border-color:#3b82f6}.skills-cloud{display:flex;flex-wrap:wrap;gap:1rem;justify-content:center;align-items:center;padding:2rem;background:linear-gradient(135deg,#f9fafb,#f3f4f6);border-radius:1rem}.skill-tag{display:inline-block;background:#f0f0f0;color:#666;padding:.1rem .6rem;border-radius:4px;font-size:13px;cursor:default;transition:color .2s;animation:fadeInUp .5s ease backwards;white-space:nowrap}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 768px){.skills-cloud{padding:1rem}.skill-tag{font-size:.875rem!important;padding:.375rem .75rem}.category-btn{font-size:.75rem;padding:.375rem .75rem}}.timeline-container{margin:2rem 0}.tech-filter{display:flex;align-items:center;gap:1rem;margin-bottom:2rem;padding:1rem;background:#f9fafb;border-radius:.5rem}.tech-filter label{font-weight:600;color:#374151}.tech-filter select{flex:1;padding:.5rem;border:2px solid #e5e7eb;border-radius:.5rem;font-size:.875rem;cursor:pointer;transition:border-color .3s ease}.tech-filter select:hover,.tech-filter select:focus{border-color:#3b82f6;outline:none}.timeline{position:relative;padding-left:2rem}.timeline:before{content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:linear-gradient(180deg,#3b82f6,#8b5cf6)}.timeline-item{position:relative;margin-bottom:2rem;cursor:pointer}.timeline-item:nth-child(n){animation-delay:calc(.1s * var(--item-index, 0))}.timeline-marker{position:absolute;left:-2.5rem;top:.5rem;width:1rem;height:1rem;background:#fff;border:3px solid #3b82f6;border-radius:50%;transition:all .3s ease;z-index:1}.timeline-item:hover .timeline-marker,.timeline-item.expanded .timeline-marker{transform:scale(1.5);background:#3b82f6;box-shadow:0 0 0 4px #3b82f633}.timeline-content{background:#fff;border:2px solid #e5e7eb;border-radius:.75rem;padding:1.5rem;transition:all .3s ease;position:relative}.timeline-item:hover .project-content{box-shadow:0 0 24px #0000001a}.timeline-item.expanded .project-content{box-shadow:0 0 24px #3b82f640}.no-results{text-align:center;padding:3rem;color:#9ca3af;font-style:italic}@media (max-width: 768px){.timeline{padding-left:1.5rem}.timeline-marker{left:-2rem}.tech-filter{flex-direction:column;align-items:stretch}.tech-filter select{width:100%}}.project-content{padding:1rem;transition:all .4s cubic-bezier(.4,0,.2,1);position:relative;top:-25px;overflow:hidden}.project-content:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:#fff;opacity:0;transition:opacity .4s ease}.project-date{display:inline-block;margin:0 0 1rem;padding:.375rem .875rem;color:#1e40af;font-size:.813rem;font-weight:600;letter-spacing:.025em;text-transform:uppercase}.project-title{margin:0 0 .5rem;color:#111827;font-size:1.5rem;font-weight:800;letter-spacing:-.025em;background:linear-gradient(135deg,#1f2937,#3b82f6);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.project-content>p{margin:0 0 .75rem;color:#4b5563;line-height:1.7;font-size:1rem}.project-header{display:flex;align-items:center;gap:1rem;flex-wrap:wrap;margin-bottom:.5rem}.project-date{display:inline-block;margin:0;padding:.25rem .6rem;color:#999;font-size:12px;font-weight:100;text-transform:none;width:160px}.project-name{margin:0;font-size:1.05rem;color:#0f172a;font-weight:700;flex:1 1 auto;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.project-client{margin-left:auto;font-size:.9rem;color:#374151;font-weight:600;background:transparent}.project-details{margin-top:1.5rem;padding-top:1.5rem;border-top:2px solid transparent;background:linear-gradient(#fff,#fff) padding-box,linear-gradient(90deg,#3b82f6) border-box;border-image:linear-gradient(90deg,#3b82f6) 1;animation:project-expandDown .4s cubic-bezier(.4,0,.2,1)}.project-section{padding:1rem 0}.project-section:last-child{margin-bottom:0}.project-section h4{margin:0 0 .5rem;color:#1f2937;font-size:14px;font-weight:700}.project-section p{color:#6b7280;line-height:1.5;font-size:13px;text-align:justify}.project-section ul{margin:0;padding-left:1.5rem;color:#4b5563;line-height:1.75}.project-section li{color:#6b7280;margin-bottom:.2rem;line-height:1.5;position:relative;padding-left:.5rem;font-size:13px}.project-section li::marker{color:#3b82f6;font-weight:700}.project-expand-hint{margin-top:1rem;padding-top:1rem;font-size:.813rem;color:#9ca3af;text-align:center;font-style:italic;font-weight:500;border-top:1px dashed #e5e7eb;transition:color .3s ease}@keyframes project-expandDown{0%{opacity:0;max-height:0;transform:translateY(-10px)}to{opacity:1;max-height:2000px;transform:translateY(0)}}@media (max-width: 768px){.project-content{padding:1.5rem}.project-title{font-size:1.25rem}.project-section{padding:1rem}.project-tech-tag{padding:.375rem .75rem;font-size:.813rem}}.stats-card{display:flex;align-items:center;gap:1.5rem;padding:1.5rem;background:#fff;border:2px solid #e5e7eb;border-radius:1rem;transition:all .3s ease;animation:scaleIn .5s ease backwards}.stats-card:hover{border-color:var(--card-color, #3b82f6);box-shadow:0 10px 25px #0000001a;transform:translateY(-5px)}.stats-icon{display:flex;align-items:center;justify-content:center;width:4rem;height:4rem;border-radius:1rem;font-size:2rem;flex-shrink:0}.stats-content{flex:1}.stats-value{font-size:2.5rem;font-weight:700;color:#1f2937;line-height:1;margin-bottom:.25rem}.stats-label{font-size:.875rem;color:#6b7280;font-weight:500;text-transform:uppercase;letter-spacing:.05em}@keyframes scaleIn{0%{opacity:0;transform:scale(.8)}to{opacity:1;transform:scale(1)}}@media (max-width: 768px){.stats-card{padding:1rem;gap:1rem}.stats-icon{width:3rem;height:3rem;font-size:1.5rem}.stats-value{font-size:2rem}.stats-label{font-size:.75rem}}.contact-card{background:linear-gradient(135deg,#667eea,#764ba2);border-radius:1rem;padding:2rem;color:#fff;box-shadow:0 20px 40px #667eea4d;animation:slideInRight .5s ease backwards}.contact-header{display:flex;align-items:center;gap:1.5rem;margin-bottom:2rem}.contact-avatar{width:5rem;height:5rem;background:#fff;color:#667eea;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:2rem;font-weight:700;box-shadow:0 10px 25px #0003}.contact-info{flex:1}.contact-name{margin:0 0 .5rem;font-size:2rem;font-weight:700}.contact-title{margin:0;font-size:1rem;opacity:.9}.contact-links{display:flex;flex-direction:column;gap:.75rem}.contact-link{display:flex;align-items:center;gap:1rem;padding:.75rem 1rem;background:#ffffff1a;border-radius:.5rem;color:#fff;text-decoration:none;transition:all .3s ease;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.contact-link:hover{background:#fff3;transform:translate(5px)}.contact-icon{font-size:1.5rem;flex-shrink:0}.contact-text{font-size:.875rem;word-break:break-all}@keyframes slideInRight{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:translate(0)}}@media (max-width: 768px){.contact-card{padding:1.5rem}.contact-header{flex-direction:column;text-align:center}.contact-avatar{width:4rem;height:4rem;font-size:1.5rem}.contact-name{font-size:1.5rem}.contact-link{font-size:.875rem}}.teaching-list{display:flex;flex-direction:column;gap:1rem}.teaching-item{display:flex;align-items:flex-start;gap:1rem;padding:1.5rem;background:#fff;border:2px solid #e5e7eb;border-radius:.75rem;transition:all .3s ease;animation:slideIn .5s ease backwards}.teaching-item:nth-child(n){animation-delay:calc(.05s * var(--item-index, 0))}.teaching-item:hover{border-color:#10b981;box-shadow:0 10px 25px #10b9811a;transform:translate(5px)}.teaching-icon{font-size:2rem;flex-shrink:0}.teaching-content{flex:1;line-height:1.6;color:#4b5563}@keyframes slideIn{0%{opacity:0;transform:translate(-20px)}to{opacity:1;transform:translate(0)}}@keyframes postEntrance{0%{opacity:0;transform:translateY(500px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 768px){.teaching-item{padding:1rem}.teaching-icon{font-size:1.5rem}}.teaching-list-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;align-items:start}.teaching-column{display:flex;flex-direction:column;gap:1rem}.column-heading{margin:1rem 0 0;font-size:1.25rem;color:#1f2937;text-align:center}.column-list{display:flex;flex-direction:column;gap:.75rem}.teaching-card,.talk-card,.publication-card{display:flex;gap:.75rem;padding:8px;background:transparent;border:none;text-align:left;width:100%;box-sizing:border-box;opacity:0;transform:translateY(64px);will-change:transform,opacity;animation:postEntrance 1s cubic-bezier(.22,.9,.32,1) forwards;animation-delay:calc(sqrt(var(--order, 0)) * .2s + (var(--order, 0) * 50ms));margin-bottom:20px;border-left:1px solid transparent}.teaching-card:hover,.talk-card:hover,.publication-card:hover{box-shadow:0 0 24px #00000014}.card-icon{font-size:1.5rem;flex-shrink:0;width:2rem}.card-body{flex:1}.card-dates{margin:0;font-size:.9rem;color:#6b7280}.card-title{margin:.25rem 0;font-size:15px;color:#111827}.card-desc{margin:.25rem 0 0;color:#4b5563;font-size:13px}.card-meta,.card-authors{margin-top:.5rem;font-size:.875rem;color:#6b7280;line-height:1em}.card-authors:before{content:"• ";margin-right:.25rem;color:#d1d5db}@media (max-width: 992px){.teaching-list-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width: 640px){.teaching-list-grid{grid-template-columns:1fr}}.about-page{max-width:75rem;margin:0 auto;padding:2rem 1rem}.about-hero{text-align:center;margin-bottom:3rem;animation:fadeIn .5s ease}.about-hero h1{font-size:3rem;margin-bottom:1rem;color:#1f2937;font-weight:500;font-size:2.5rem}.about-summary{font-size:1.25rem;color:#6b7280;max-width:48rem;margin:0 auto;line-height:1.8}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem;margin-bottom:3rem}.contact-section{margin-bottom:3rem}.social-icon{width:32px;height:32px;margin:1rem;transition:filter .3s ease}.tab-navigation{display:flex;gap:1rem;margin-bottom:2rem;border-bottom:2px solid #e5e7eb;padding-bottom:0;flex-wrap:wrap;justify-content:center}.tab-btn{padding:1rem 1.5rem;background:none;border:none;border-bottom:3px solid transparent;cursor:pointer;font-size:1rem;font-weight:600;color:#6b7280;transition:all .3s ease;position:relative;bottom:-2px}.tab-btn:hover{color:#3b82f6}.tab-btn.active{color:#3b82f6;border-bottom-color:#3b82f6}.tab-content{min-height:400px;animation:fadeIn .3s ease}.overview-section,.skills-section,.projects-section,.teaching-section{animation:slideUp .3s ease}.overview-section h2,.skills-section h2,.projects-section h2,.teaching-section h2{font-size:2rem;margin-bottom:1.5rem;color:#1f2937}.overview-section p{font-size:1.125rem;line-height:1.8;color:#4b5563;margin-bottom:1.5rem}.section-intro{font-size:1rem;color:#6b7280;font-style:italic;margin-bottom:2rem}.education-section{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.25rem;margin-top:1rem;animation:slideUp .3s ease}.education-item{background:#fff;padding:1.25rem;font-family:Times New Roman,Times,serif;text-align:center}.education-institution{margin:0 0 .25rem;font-size:1rem;color:#111827}.education-degree{margin:0 0 .5rem;color:#374151;font-size:1.5rem;font-weight:600}.education-dates{margin:0 0 .5rem;color:#6b7280;font-size:.95rem}.education-details{margin:0;color:#4b5563;line-height:1.6;font-size:.98rem}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 768px){.about-hero h1{font-size:2rem}.about-summary{font-size:1rem}.stats-grid{grid-template-columns:1fr}.tab-navigation{gap:.5rem}.tab-btn{padding:.75rem 1rem;font-size:.875rem}}.blogpost-nav{display:flex;justify-content:space-between;align-items:stretch;margin-bottom:2rem;gap:2rem}.blogpost-nav__item{flex:1 1 0;display:flex;align-items:center;background:#f7f7f7;border-radius:8px;min-height:100px;max-height:100px;box-shadow:0 1px 4px #0000000a;transition:box-shadow .2s;overflow:hidden}.blogpost-nav__text{display:flex;flex-direction:column;gap:.3em;min-width:0}.blogpost-nav__excerpt{font-size:.98rem;color:#666;line-height:1.3;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:normal;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;line-clamp:2}.blogpost-nav__item--hidden{visibility:hidden}.blogpost-nav__item--next{justify-content:flex-start}.blogpost-nav__item--prev{justify-content:flex-end}.blogpost-nav__link{display:flex;align-items:center;width:100%;padding:1rem;text-decoration:none;color:inherit;gap:1rem}.blogpost-nav__image{width:100px;height:100px;object-fit:cover;border-radius:6px;background:#e0e0e0}.blogpost-nav__title{font-size:1.1rem;font-weight:600;flex:1;white-space:normal}.blogpost-nav__arrow{font-size:2rem;line-height:1;color:#00000040;display:inline-flex;align-items:center;justify-content:center;width:.5rem;height:2.4rem;flex:0 0 auto}.blogpost-nav__arrow--right{margin-right:.1rem}.blogpost-nav__arrow--left{margin-left:.1rem}@media (max-width: 600px){.blogpost-nav__item{min-height:110px;max-height:160px}.blogpost-nav__image,.blogpost-nav__arrow,.blogpost-nav__excerpt{display:none!important}.blogpost-nav__title{font-size:.8rem;font-weight:600}.blogpost-nav__link{padding:.75rem;gap:.75rem}.blogpost-nav__image{width:24px;height:24px}}article{padding-top:5em;max-width:45rem;margin:0 auto;padding-left:1rem;padding-right:1rem}article p{line-height:1.7;margin:.75rem 0;font-size:1.1rem;color:#374151;text-align:justify}article h4{font-size:1.12rem;margin:1rem 0 .5rem;color:#111827}article li{font-size:1.1rem;margin-left:1.5rem;margin-bottom:.5rem;color:#374151}.post-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem;flex-wrap:wrap;gap:1rem;box-shadow:none}.post-date{color:#6b7280;font-size:.95rem}.post-date time{font-weight:400}.post-header .post-tags{display:flex;flex-wrap:wrap;gap:.5rem;justify-content:flex-end}.post-header .tag{background:#f3f4f6;color:#4b5563;padding:.25rem .75rem;border-radius:6px;font-size:.8rem;font-weight:500;transition:background-color .2s}.post-header .tag:hover{background:#e5e7eb}@media (max-width: 768px){.post-header{margin-bottom:1.5rem}}@media (max-width: 480px){.post-header{flex-direction:column;align-items:flex-start}.post-header .post-tags{justify-content:flex-start}}.image-lightbox{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;background:#000c;z-index:9999;padding:2rem}.image-lightbox-img{max-width:100%;max-height:100%;box-shadow:0 20px 50px #0009;border-radius:6px;object-fit:contain}.image-lightbox-close{position:fixed;top:1rem;right:1rem;background:#ffffff1a;color:#fff;border:none;font-size:1.75rem;line-height:1;width:2.5rem;height:2.5rem;border-radius:999px;display:flex;align-items:center;justify-content:center;cursor:pointer}.image-lightbox-close:hover{background:#ffffff29}.mdx-content{max-width:45rem;color:#374151;line-height:1.75}.mdx-content h1{font-size:2.25rem;font-weight:700;margin-top:2rem;margin-bottom:1rem;color:#111}.mdx-content h2{font-size:1.875rem;font-weight:700;margin-top:2rem;margin-bottom:1rem;color:#111}.mdx-content h3{font-size:1.5rem;font-weight:600;margin-top:1.5rem;margin-bottom:.75rem;color:#111}.mdx-content h4{font-size:1.25rem;font-weight:600;margin-top:1rem;margin-bottom:.5rem;color:#111}.mdx-content p{margin-bottom:2rem}.mdx-content ul,.mdx-content ol{margin-bottom:1rem;margin-left:1.5rem}.mdx-content ul{list-style-type:disc}.mdx-content ol{list-style-type:decimal}.mdx-content li{margin-bottom:.5rem}.mdx-content strong{font-weight:700;color:#111}.mdx-content em{font-style:italic}.mdx-content a{color:#2563eb;text-decoration:underline}.mdx-content a:hover{color:#1e40af}.mdx-content code{background-color:#f3f4f6;padding:.125rem .375rem;border-radius:.25rem;font-size:.875rem;font-family:Monaco,Courier New,monospace;color:#dc2626}.mdx-content pre{background-color:#1f2937;color:#f3f4f6;padding:1rem;border-radius:.5rem;overflow-x:auto;margin-bottom:1rem}.mdx-content pre code{background-color:transparent;color:#f3f4f6;padding:0}.mdx-content blockquote{border-left:4px solid #d1d5db;padding-left:1rem;font-style:italic;color:#4b5563;margin:1rem 0}.mdx-content img{max-width:100%;height:auto;border-radius:.5rem;margin:1rem auto;display:block}.mdx-content hr{border:none;border-top:1px solid #d1d5db;margin:2rem 0}h1{text-align:center;color:#333;margin-bottom:1rem}.nzs-nzd-container{padding:2rem;max-width:50rem;margin:0 auto}.nzs-nzd-intro{line-height:1.6;margin-bottom:1.5rem}.level-selection{margin:2rem 0}.level-selection h2{text-align:center;margin-bottom:2rem;color:#333}.level-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:1.5rem;margin-bottom:2rem}.level-card{background:#f5f5f5;border:2px solid #d0d0d0;border-radius:8px;padding:1.5rem;cursor:pointer;transition:all .2s;text-align:center;position:relative}.level-card:hover:not(.locked){background:#e8e8e8;border-color:#999;transform:translateY(-2px);box-shadow:0 4px 8px #0000001a}.level-card.completed{background:#f0f5f0;border-color:#5a7a5a}.level-card.locked{background:#e8e8e8;border-color:#ccc;opacity:.6;cursor:not-allowed}.level-number{font-size:1.5rem;font-weight:600;color:#333;margin-bottom:.75rem}.level-card.locked .level-number{color:#999}.level-info{font-size:.875rem;color:#666;margin-bottom:.5rem}.level-info>div{margin:.25rem 0}.completed-badge{color:#2d5a2d;font-weight:600;font-size:.875rem;margin-top:.5rem}.locked-badge{color:#999;font-size:.875rem;margin-top:.5rem}.level-panel{background:#f5f5f5;color:#333;padding:1.5rem;border-radius:4px;margin:2rem 0;border:1px solid #d0d0d0}.level-stats{display:flex;flex-wrap:wrap;gap:1.5rem;align-items:baseline;margin:.75rem}.level-stats>div{display:flex;align-items:baseline;gap:.5rem}.level-stats strong{font-weight:600}.level-complete-badge{color:#2d5a2d;font-weight:600}.progress-bar-container{background:#e0e0e0;height:10px;border-radius:2px;overflow:hidden;position:relative;margin-top:1rem}.progress-bar-fill{height:100%;transition:width .3s ease-out;border-radius:2px}.progress-bar-fill.complete{background:#4a7c4a}.progress-bar-fill.in-progress{background:#5a6a7a}.theory-toggle{margin-bottom:1rem;padding:.5rem 1rem;background:#f5f5f5;border:1px solid #ccc;border-radius:3px;cursor:pointer;font-weight:500;transition:background-color .2s}.theory-toggle:hover{background:#e8e8e8}.theory-box{background:#fafafa;padding:1.5rem;border:1px solid #ddd;border-radius:3px;margin-bottom:1.5rem}.theory-box h2{margin-top:0;color:#333;font-size:1.25rem}.theory-box code{background:#ececec;padding:.2rem .4rem;border-radius:2px;font-family:Courier New,monospace}.current-pair{margin-top:2rem;margin-bottom:1.5rem;padding:1.25rem;background:#fafafa;border-radius:4px;border:1px solid #ccc}.current-pair h2{margin-top:0;color:#333;text-align:center}.pair-values{font-size:1.5rem;font-weight:600;color:#78350f;margin:.5rem 0}.pair-values strong{color:#b45309;font-size:1.75rem}.answer-inputs{display:flex;gap:1rem;flex-wrap:wrap;margin-bottom:1rem}.input-group{flex:1 1 200px}.input-group label{display:block;margin-bottom:.5rem;font-weight:600;color:#374151}.input-group input{width:100%;padding:.75rem;border:1px solid #999;border-radius:3px;font-size:1rem;transition:border-color .2s;text-align:center}.input-group input:focus{outline:none;border-color:#555}.input-group input::placeholder{color:#9ca3af}.button-group{display:flex;gap:.75rem;flex-wrap:wrap;margin-bottom:1rem}button{padding:.75rem 1.5rem;border:1px solid #999;border-radius:3px;font-weight:500;cursor:pointer;transition:background-color .2s;font-size:1rem}button:hover{background:#f0f0f0}button:active{background:#e0e0e0}.btn-primary{background:#666;color:#fff;border-color:#555}.btn-primary:hover{background:#555}.btn-secondary{background:#e5e5e5;color:#333}.btn-secondary:hover{background:#d5d5d5}.btn-success{background:#5a7a5a;color:#fff;padding:.75rem 1.5rem;border-radius:3px;border-color:#4a6a4a}.btn-success:hover{background:#4a6a4a}.btn-reset{background:#d5d5d5;color:#555;padding:.4rem .8rem;border-radius:3px;border:1px solid #999;font-size:.875rem}.btn-reset:hover{background:#c5c5c5}.btn-back{background:#e5e5e5;color:#333;padding:.5rem 1rem;border-radius:3px;border:1px solid #999;font-size:.875rem;cursor:pointer}.btn-back:hover{background:#d5d5d5}.feedback{margin-top:1rem;padding:1rem 1.25rem;border-radius:3px;border:1px solid;font-weight:400}.feedback.success{background:#f0f5f0;border-color:#5a7a5a;color:#2d4a2d}.feedback.error{background:#f5f0f0;border-color:#8a6a6a;color:#5a3a3a}.level-complete-section{margin-top:1.5rem;text-align:center}.completion-message{margin-top:.5rem;font-weight:500;font-size:1.25rem;color:#4a6a4a}details{margin-top:2rem;padding:1rem;background:#fafafa;border:1px solid #ddd;border-radius:3px}details summary{cursor:pointer;font-weight:700;color:#333;padding:.5rem}details summary:hover{color:#555}details p,details ul{margin-top:.75rem;color:#555}details ul{list-style-position:inside}@media (max-width: 640px){.level-stats{flex-direction:column;gap:.75rem}.answer-inputs,.button-group{flex-direction:column}button{width:100%}}pre code.hljs{display:block;overflow-x:auto;padding:1em}code.hljs{padding:3px 5px}.hljs{color:#abb2bf;background:#282c34}.hljs-comment,.hljs-quote{color:#5c6370;font-style:italic}.hljs-doctag,.hljs-keyword,.hljs-formula{color:#c678dd}.hljs-section,.hljs-name,.hljs-selector-tag,.hljs-deletion,.hljs-subst{color:#e06c75}.hljs-literal{color:#56b6c2}.hljs-string,.hljs-regexp,.hljs-addition,.hljs-attribute,.hljs-meta .hljs-string{color:#98c379}.hljs-attr,.hljs-variable,.hljs-template-variable,.hljs-type,.hljs-selector-class,.hljs-selector-attr,.hljs-selector-pseudo,.hljs-number{color:#d19a66}.hljs-symbol,.hljs-bullet,.hljs-link,.hljs-meta,.hljs-selector-id,.hljs-title{color:#61aeee}.hljs-built_in,.hljs-title.class_,.hljs-class .hljs-title{color:#e6c07b}.hljs-emphasis{font-style:italic}.hljs-strong{font-weight:700}.hljs-link{text-decoration:underline}