:root{--bg-primary: #0f0f0f;--bg-secondary: #1a1a1a;--bg-tertiary: #252525;--text-primary: #e4e4e4;--text-secondary: #a0a0a0;--text-tertiary: #666;--accent-primary: #6366f1;--accent-hover: #4f46e5;--border-color: #333;--gradient-start: #667eea;--gradient-end: #764ba2}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background-color:var(--bg-primary);color:var(--text-primary);line-height:1.6}.container{max-width:1200px;margin:0 auto;padding:0 2rem}.nav{position:fixed;top:0;left:0;right:0;z-index:100;background:url(/coderbg/index-gallery/coderbg-header.png);background-size:cover;background-position:center;border-bottom:1px solid var(--border-color)}.nav-container{max-width:1200px;margin:0 auto;padding:1rem 2rem;display:flex;align-items:center;justify-content:space-between}.nav-logo{font-size:1.5rem;font-weight:600;background:linear-gradient(135deg,var(--gradient-start) 0%,var(--gradient-end) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.nav-cta{background:linear-gradient(135deg,var(--gradient-start) 0%,var(--gradient-end) 100%);color:#fff;text-decoration:none;padding:.5rem 1.25rem;border-radius:6px;font-weight:500;font-size:.875rem;transition:opacity .2s,transform .2s;box-shadow:0 0 12px #000c,0 0 24px #00000080}.nav-cta:hover{opacity:.9;transform:translateY(-1px)}.btn{display:inline-block;padding:.75rem 1.5rem;border-radius:8px;font-weight:500;font-size:1rem;text-decoration:none;transition:all .2s;cursor:pointer;border:none}.btn-primary{background:linear-gradient(135deg,var(--gradient-start) 0%,var(--gradient-end) 100%);color:#fff}.btn-primary:hover{opacity:.9;transform:translateY(-2px)}.btn-secondary{background:transparent;color:var(--text-secondary);border:1px solid var(--border-color)}.btn-secondary:hover{background:var(--bg-tertiary);color:var(--text-primary)}.btn-large{padding:1rem 2rem;font-size:1.125rem}.hero{position:relative;min-height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:6rem 2rem 4rem;overflow:hidden}.hero-bg{position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(ellipse at 50% 0%,rgba(102,126,234,.15) 0%,transparent 50%),radial-gradient(ellipse at 80% 50%,rgba(118,75,162,.1) 0%,transparent 40%),radial-gradient(ellipse at 20% 80%,rgba(102,126,234,.08) 0%,transparent 40%);pointer-events:none}.hero-content{position:relative;max-width:800px}.hero h1{font-size:clamp(2.5rem,8vw,4.5rem);font-weight:700;line-height:1.1;margin-bottom:1.5rem}.gradient-text{background:linear-gradient(135deg,var(--gradient-start) 0%,var(--gradient-end) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.typewriter{position:relative;display:inline;background:linear-gradient(135deg,var(--gradient-start) 0%,var(--gradient-end) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.typewriter-second:after{content:"|";background:linear-gradient(135deg,var(--gradient-start) 0%,var(--gradient-end) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;animation:blink .7s infinite;margin-left:.02em}@keyframes blink{0%,50%{opacity:1}51%,to{opacity:0}}.hero-tagline{font-size:clamp(1.125rem,2.5vw,1.5rem);color:var(--text-secondary);margin-bottom:2rem;max-width:600px;margin-left:auto;margin-right:auto}.hero-actions{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap;margin-bottom:1.5rem}.hero-note{font-size:.875rem;color:var(--text-tertiary)}.section-title{font-size:clamp(2rem,5vw,2.5rem);font-weight:700;text-align:center;margin-bottom:.75rem}.section-subtitle{font-size:1.125rem;color:var(--text-secondary);text-align:center;margin-bottom:3rem}.features{padding:6rem 0;background:var(--bg-secondary)}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem}.feature-card{background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:12px;padding:2rem;transition:transform .2s,border-color .2s}.feature-card:hover{transform:translateY(-4px);border-color:var(--accent-primary)}.feature-icon{width:56px;height:56px;background:linear-gradient(135deg,var(--gradient-start) 0%,var(--gradient-end) 100%);border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:1.25rem;color:#fff}.feature-card h3{font-size:1.25rem;margin-bottom:.75rem}.feature-card p{color:var(--text-secondary);font-size:.9375rem;line-height:1.6}.how-it-works{padding:6rem 0}.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem;margin-top:2rem}.step{text-align:center;padding:2rem}.step-number{width:64px;height:64px;background:linear-gradient(135deg,var(--gradient-start) 0%,var(--gradient-end) 100%);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:700;margin:0 auto 1.5rem;color:#fff}.step h3{font-size:1.25rem;margin-bottom:.75rem}.step p{color:var(--text-secondary);font-size:.9375rem}.use-cases{padding:6rem 0;background:var(--bg-secondary)}.use-cases-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1.5rem}.use-case{background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:12px;padding:1.5rem;text-align:center;transition:transform .2s}.use-case:hover{transform:translateY(-2px)}.use-case-icon{font-size:2.5rem;display:block;margin-bottom:1rem}.use-case h4{font-size:1.125rem;margin-bottom:.5rem}.use-case p{color:var(--text-secondary);font-size:.875rem}.cta-section{padding:6rem 0;text-align:center;background:radial-gradient(ellipse at 50% 50%,rgba(102,126,234,.1) 0%,transparent 60%)}.cta-section h2{font-size:clamp(2rem,5vw,2.5rem);margin-bottom:.75rem}.cta-section p{color:var(--text-secondary);font-size:1.125rem;margin-bottom:2rem}.footer{padding:4rem 0 2rem;border-top:1px solid var(--border-color)}.footer-content{display:flex;justify-content:space-between;align-items:flex-start;flex-wrap:wrap;gap:2rem;margin-bottom:2rem}.footer-logo{font-size:1.25rem;font-weight:600;background:linear-gradient(135deg,var(--gradient-start) 0%,var(--gradient-end) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:.5rem}.footer-brand p{color:var(--text-tertiary);font-size:.875rem}.footer-links{display:flex;gap:2rem}.footer-links a{color:var(--text-secondary);text-decoration:none;font-size:.875rem;transition:color .2s}.footer-links a:hover{color:var(--text-primary)}.footer-bottom{text-align:center;padding-top:2rem;border-top:1px solid var(--border-color)}.footer-bottom p{color:var(--text-tertiary);font-size:.875rem}.gallery-section{padding:6rem 0}.gallery-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem;margin-bottom:2rem}.gallery-item{position:relative;border-radius:12px;overflow:hidden;cursor:pointer;background:var(--bg-tertiary);border:2px solid rgba(99,102,241,.3);box-shadow:0 0 15px #6366f133,0 0 30px #6366f11a,0 4px 20px #0000004d;transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease}.gallery-item:hover{transform:translateY(-12px) scale(1.02);border-color:#6366f199;box-shadow:0 0 25px #6366f166,0 0 50px #6366f133,0 20px 40px #0006}.gallery-item img{width:100%;height:auto;display:block;transition:transform .3s ease}.gallery-item:hover img{transform:scale(1.05)}.gallery-note{text-align:center;color:var(--text-tertiary);font-size:.875rem}.preset-link{position:absolute;bottom:8px;right:8px;display:flex;align-items:center;justify-content:center;width:32px;height:32px;background:linear-gradient(135deg,#667eea,#764ba2);border-radius:6px;color:#fff;text-decoration:none;opacity:.85;transition:all .2s ease;z-index:10;box-shadow:0 2px 8px #0000004d}.preset-link:hover{opacity:1;transform:scale(1.1);box-shadow:0 4px 12px #667eea80}.preset-link:before{content:attr(data-tooltip);position:absolute;bottom:100%;right:0;margin-bottom:6px;padding:6px 10px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;font-size:12px;font-weight:500;white-space:nowrap;border-radius:6px;opacity:0;visibility:hidden;transform:translateY(4px);transition:all .15s ease;pointer-events:none;box-shadow:0 2px 8px #0000004d}.preset-link:after{content:"";position:absolute;bottom:100%;right:10px;margin-bottom:2px;border:5px solid transparent;border-top-color:#764ba2;opacity:0;visibility:hidden;transition:all .15s ease}.preset-link:hover:before,.preset-link:hover:after{opacity:1;visibility:visible;transform:translateY(0)}.video-indicator{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:48px;height:48px;background:#0009;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;pointer-events:none;transition:all .2s ease;z-index:5}.gallery-item:hover .video-indicator{background:#6366f1cc;transform:translate(-50%,-50%) scale(1.1)}.preview-video{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity .3s ease}.gallery-video img{transition:opacity .3s ease}.gallery-video .video-indicator{transition:all .2s ease,opacity .3s ease}.preset-link svg{width:18px;height:18px}.lightbox{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000f2;display:flex;align-items:center;justify-content:center;z-index:1000;opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;padding:2rem}.lightbox.active{opacity:1;visibility:visible}.lightbox img{max-width:90%;max-height:90vh;border-radius:8px;box-shadow:0 0 30px #6366f14d,0 0 60px #6366f126,0 20px 60px #00000080;border:2px solid rgba(99,102,241,.4)}.lightbox-close{position:absolute;top:1.5rem;right:1.5rem;background:#ffffff1a;border:1px solid rgba(255,255,255,.2);color:#fff;width:48px;height:48px;border-radius:50%;font-size:1.5rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s,transform .2s}.lightbox-close:hover{background:#fff3;transform:scale(1.1)}@media(max-width:768px){.hero{padding-top:5rem;min-height:auto;padding-bottom:4rem}.hero-actions{flex-direction:column;align-items:center}.hero-actions .btn{width:100%;max-width:280px;text-align:center}.features-grid,.steps,.use-cases-grid{grid-template-columns:1fr}.footer-content{flex-direction:column;text-align:center}.footer-links{justify-content:center}.gallery-grid{grid-template-columns:1fr;gap:1.5rem}.lightbox img{max-width:95%;max-height:80vh}.lightbox-close{top:1rem;right:1rem;width:40px;height:40px}}