:root{--bg-color:#0d1117;--bg-color-alt:#161b22;--text-color:#e6edf3;--text-muted:#8b949e;--accent-color:#58a6ff;--accent-secondary:#2ea043;--font-main:"Inter", system-ui, -apple-system, sans-serif}*{box-sizing:border-box;margin:0;padding:0}html{font-family:var(--font-main);background:var(--bg-color);color:var(--text-color);scroll-behavior:smooth;font-size:16px}body{overflow-x:hidden}h1{letter-spacing:-.05em;background:-webkit-linear-gradient(135deg, var(--accent-color), var(--accent-secondary));-webkit-text-fill-color:transparent;color:#0000;-webkit-background-clip:text;margin-bottom:1.5rem;font-size:clamp(3rem,10vw,6rem);font-weight:800;line-height:1.1}h2{color:var(--text-color);letter-spacing:-.02em;margin-bottom:1.5rem;font-size:2.25rem;font-weight:600;display:inline-block;position:relative}h2:after{content:"";background:linear-gradient(90deg, var(--accent-color), transparent);border-radius:2px;width:3rem;height:4px;position:absolute;bottom:-.5rem;left:0}p{color:var(--text-muted);margin-bottom:1.5rem;font-size:1.25rem;font-weight:300;line-height:1.8}p:last-child{margin-bottom:0}strong{color:#c9d1d9;font-weight:600}.hero{text-align:center;justify-content:center;align-items:center;height:100vh;padding:2rem;display:flex;position:relative}.hero-background{z-index:0;background:radial-gradient(circle,#58a6ff26 0%,#0d1117 70%);position:absolute;inset:0}.hero-background:after{content:"";background-image:radial-gradient(#ffffff0d 1px,#0000 1px);background-size:40px 40px;position:absolute;inset:0;-webkit-mask-image:radial-gradient(#000 0%,#0000 80%);mask-image:radial-gradient(#000 0%,#0000 80%)}.hero-content{z-index:1;max-width:900px;animation:1s cubic-bezier(.16,1,.3,1) forwards fadeUp;position:relative}@keyframes fadeUp{0%{opacity:0;transform:translateY(40px)}to{opacity:1;transform:translateY(0)}}.subtitle{color:#c9d1d9;max-width:800px;margin:0 auto;font-size:clamp(1.2rem,3vw,1.8rem);font-weight:300}.scroll-indicator{opacity:.7;color:var(--accent-color);text-transform:uppercase;letter-spacing:.1em;flex-direction:column;align-items:center;font-size:.9rem;font-weight:600;animation:2s ease-in-out infinite bounce;display:flex;position:absolute;bottom:3rem;left:50%;transform:translate(-50%)}.scroll-indicator .arrow{margin-top:.5rem;font-size:1.5rem}@keyframes bounce{0%,to{transform:translateY(0)translate(-50%)}50%{transform:translateY(-15px)translate(-50%)}}.navbar{-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--card-border);z-index:100;background:#0d1117bf;width:100%;padding:1.25rem 0;transition:all .3s;position:fixed;top:0;left:0}.nav-container{justify-content:space-between;align-items:center;max-width:1400px;margin:0 auto;padding:0 2rem;display:flex}.nav-logo a{color:var(--text-color);background:-webkit-linear-gradient(135deg, var(--accent-color), var(--accent-secondary));-webkit-text-fill-color:transparent;-webkit-background-clip:text;font-size:1.5rem;font-weight:800;text-decoration:none}.nav-links{align-items:center;gap:2.5rem;list-style:none;display:flex}.nav-links a{color:var(--text-muted);font-size:.95rem;font-weight:600;text-decoration:none;transition:color .3s}.nav-links a:hover,.nav-links a.active{color:var(--text-color)}.github-link{opacity:.8;align-items:center;transition:opacity .3s;color:var(--text-color)!important;display:flex!important}.github-link:hover{opacity:1}.content-section{opacity:0;padding:5rem 1rem;transition:opacity .8s ease-out,transform .8s ease-out;transform:translateY(30px)}.content-section.is-visible{opacity:1;transform:translateY(0)}.text-content{justify-content:center;display:flex}.container{width:100%;max-width:800px}.interactive-app{background:var(--bg-color-alt);margin:2rem 0;padding:4rem 1rem;box-shadow:inset 0 10px 30px #00000080,inset 0 -10px 30px #00000080}.app-header{text-align:center;max-width:800px;margin-bottom:2rem;margin-left:auto;margin-right:auto}.app-header h2:after{left:50%;transform:translate(-50%)}.iframe-container{border:1px solid #ffffff1a;border-radius:16px;width:100%;max-width:1400px;height:80vh;margin:0 auto;position:relative;overflow:hidden;box-shadow:0 25px 50px -12px #000c}.media-placeholder{z-index:1;background:#000;justify-content:center;align-items:center;transition:opacity .8s;display:flex;position:absolute;inset:0}.spinner{border:4px solid #58a6ff1a;border-top-color:var(--accent-color);border-radius:50%;width:60px;height:60px;animation:1s cubic-bezier(.4,0,.2,1) infinite spin}@keyframes spin{to{transform:rotate(360deg)}}iframe{z-index:2;opacity:0;background:#fff;width:100%;height:100%;transition:opacity 1.5s;position:absolute;inset:0}iframe.loaded{opacity:1}.external-link-btn{z-index:3;-webkit-backdrop-filter:blur(8px);color:var(--text-color);border:1px solid var(--card-border);background:#0d1117d9;border-radius:8px;padding:.6rem 1.2rem;font-size:.9rem;font-weight:600;text-decoration:none;transition:all .2s;position:absolute;top:1.5rem;right:1.5rem;box-shadow:0 4px 12px #00000080}.external-link-btn:hover{background:var(--accent-color);color:#0d1117;border-color:var(--accent-color);transform:translateY(-2px);box-shadow:0 6px 16px #58a6ff4d}.dataset-grid{grid-template-columns:repeat(auto-fill,minmax(350px,1fr));gap:2.5rem;margin-top:3rem;padding-bottom:5rem;display:grid}.dataset-card{background:var(--bg-color-alt);border:1px solid var(--card-border);border-radius:16px;flex-direction:column;transition:transform .3s,box-shadow .3s;display:flex;overflow:hidden}.dataset-card:hover{border-color:#58a6ff4d;transform:translateY(-8px);box-shadow:0 20px 40px -10px #000000b3}.dataset-thumb{object-fit:cover;border-bottom:1px solid var(--card-border);width:100%;height:200px}.dataset-content{flex-direction:column;flex-grow:1;padding:2rem;display:flex}.dataset-tag{color:var(--accent-color);background:#58a6ff1a;border-radius:20px;width:fit-content;margin-bottom:1rem;padding:.25rem .75rem;font-size:.8rem;font-weight:600;display:inline-block}.dataset-title{color:var(--text-color);margin-bottom:1rem;font-size:1.5rem;font-weight:600}.dataset-meta{color:#8b949e;margin-bottom:1.5rem;font-size:.9rem;line-height:1.6}.dataset-meta strong{color:#c9d1d9}.dataset-desc{color:var(--text-muted);flex-grow:1;margin-bottom:2rem;font-size:1.05rem;line-height:1.6}.dataset-btn{background:var(--card-border);color:var(--text-color);border:1px solid #0000;border-radius:8px;justify-content:center;align-items:center;gap:.5rem;padding:.8rem 1.5rem;font-weight:600;text-decoration:none;transition:all .2s;display:inline-flex}.dataset-btn:hover{background:var(--accent-color);color:#0d1117}@media (width<=768px){.iframe-container{border-left:none;border-right:none;border-radius:0;height:70vh}.interactive-app{padding:3rem 0}.app-header{padding:0 1rem}}