:root{--bg-primary: #0b0d12;--bg-secondary: #12141c;--bg-card: #1a1d28;--bg-hover: #22263a;--border-color: #2a2d3c;--text-primary: #f0f2f8;--text-secondary: #9ca0b8;--text-muted: #6b7085;--accent: #6366f1;--accent-hover: #5558e6;--accent-glow: rgba(99, 102, 241, .25);--green: #22c55e;--orange: #f59e0b;--red: #ef4444;--gradient-hero: linear-gradient(135deg, #0b0d12 0%, #131625 50%, #1a1035 100%);--gradient-accent: linear-gradient(135deg, #6366f1, #8b5cf6);--radius: 12px;--radius-sm: 8px;--radius-lg: 16px;--shadow: 0 4px 24px rgba(0,0,0,.3);--nav-height: 64px}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:var(--bg-primary);color:var(--text-primary);min-height:100vh;line-height:1.6;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{cursor:pointer;font-family:inherit}input,textarea{font-family:inherit}.layout{display:flex;flex-direction:column;min-height:100vh}.layout main{flex:1}.nav{position:sticky;top:0;z-index:100;height:var(--nav-height);display:flex;align-items:center;justify-content:space-between;padding:0 24px;background:#0b0d12d9;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border-bottom:1px solid var(--border-color)}.nav-logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.25rem}.nav-logo svg{width:28px;height:28px}.nav-logo span{background:var(--gradient-accent);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.nav-links{display:flex;align-items:center;gap:8px}.nav-links a{padding:8px 14px;border-radius:var(--radius-sm);font-size:.875rem;font-weight:500;color:var(--text-secondary);transition:all .2s;white-space:nowrap}.nav-links a:hover,.nav-links a.active{color:var(--text-primary);background:var(--bg-hover)}.nav-cta{padding:8px 20px;border-radius:var(--radius-sm);background:var(--gradient-accent);color:#fff!important;font-weight:600}.nav-cta:hover{opacity:.9;background:var(--gradient-accent)!important}.mobile-menu-btn{display:none;background:none;border:none;color:var(--text-primary);font-size:1.5rem}.footer{padding:40px 24px 24px;border-top:1px solid var(--border-color);text-align:center;color:var(--text-muted);font-size:.8rem}.container{max-width:1200px;margin:0 auto;padding:0 24px}.hero{min-height:calc(100vh - var(--nav-height));display:flex;align-items:center;justify-content:center;background:var(--gradient-hero);position:relative;overflow:hidden;padding:80px 24px}.hero:before{content:"";position:absolute;width:600px;height:600px;background:radial-gradient(circle,rgba(99,102,241,.12) 0%,transparent 70%);top:-200px;right:-200px;pointer-events:none}.hero:after{content:"";position:absolute;width:400px;height:400px;background:radial-gradient(circle,rgba(139,92,246,.08) 0%,transparent 70%);bottom:-100px;left:-100px;pointer-events:none}.hero-content{max-width:800px;text-align:center;position:relative;z-index:1}.hero-badge{display:inline-flex;align-items:center;gap:6px;padding:6px 16px;border-radius:100px;background:#6366f126;color:var(--accent);font-size:.8rem;font-weight:600;margin-bottom:24px;border:1px solid rgba(99,102,241,.2)}.hero h1{font-size:clamp(2.5rem,6vw,4rem);font-weight:800;line-height:1.1;margin-bottom:20px}.hero h1 .highlight{background:var(--gradient-accent);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.hero p{font-size:clamp(1rem,2vw,1.2rem);color:var(--text-secondary);max-width:600px;margin:0 auto 36px;line-height:1.7}.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:var(--radius-sm);font-size:1rem;font-weight:600;border:none;transition:all .2s}.btn-primary{background:var(--gradient-accent);color:#fff}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 32px var(--accent-glow)}.btn-secondary{background:var(--bg-card);color:var(--text-primary);border:1px solid var(--border-color)}.btn-secondary:hover{background:var(--bg-hover);border-color:var(--accent)}.btn-sm{padding:8px 16px;font-size:.85rem}.btn-ghost{background:transparent;color:var(--text-secondary);padding:8px 16px}.btn-ghost:hover{color:var(--text-primary);background:var(--bg-card)}.hero-features{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;max-width:700px;margin:48px auto 0}.hero-feat{display:flex;align-items:center;gap:10px;padding:12px 16px;border-radius:var(--radius-sm);background:#ffffff08;font-size:.85rem;color:var(--text-secondary)}.hero-feat .icon{font-size:1.2rem}.section{padding:80px 24px}.section-header{text-align:center;margin-bottom:48px}.section-header h2{font-size:2rem;margin-bottom:12px}.section-header p{color:var(--text-secondary);max-width:500px;margin:0 auto}.cards-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}.card{background:var(--bg-card);border-radius:var(--radius-lg);border:1px solid var(--border-color);padding:24px;transition:all .2s}.card:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:var(--shadow)}.card-icon{font-size:2rem;margin-bottom:12px}.card h3{margin-bottom:8px;font-size:1.1rem}.card p{color:var(--text-secondary);font-size:.9rem;line-height:1.6}.page-header{padding:60px 24px 40px;text-align:center;background:var(--gradient-hero);border-bottom:1px solid var(--border-color)}.page-header h1{font-size:2.5rem;margin-bottom:12px}.page-header p{color:var(--text-secondary);font-size:1.1rem;max-width:600px;margin:0 auto}.upload-zone{border:2px dashed var(--border-color);border-radius:var(--radius-lg);padding:60px 24px;text-align:center;transition:all .2s;cursor:pointer;background:var(--bg-card)}.upload-zone:hover,.upload-zone.dragover{border-color:var(--accent);background:#6366f10d}.upload-zone .icon{font-size:3rem;margin-bottom:16px}.upload-zone p{color:var(--text-secondary);margin-bottom:8px}.upload-zone .hint{font-size:.8rem;color:var(--text-muted)}.model-viewer-wrapper{width:100%;height:500px;border-radius:var(--radius-lg);overflow:hidden;background:#000;position:relative}.model-viewer-wrapper model-viewer{width:100%;height:100%;--poster-color: transparent}.viewer-tools{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px;justify-content:center}.converter-layout{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:24px}.converter-box{background:var(--bg-card);border-radius:var(--radius-lg);padding:24px;border:1px solid var(--border-color)}.converter-box h3{margin-bottom:16px;font-size:1rem;color:var(--text-secondary)}.format-select{width:100%;padding:12px;border-radius:var(--radius-sm);background:var(--bg-secondary);color:var(--text-primary);border:1px solid var(--border-color);font-size:1rem;margin-bottom:16px}.format-select:focus{outline:none;border-color:var(--accent)}.generator-layout{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:24px}.generator-panel{background:var(--bg-card);border-radius:var(--radius-lg);padding:24px;border:1px solid var(--border-color)}.generator-panel h3,.input-group{margin-bottom:16px}.input-group label{display:block;margin-bottom:6px;font-size:.85rem;color:var(--text-secondary);font-weight:500}.input-group input,.input-group textarea{width:100%;padding:12px 16px;border-radius:var(--radius-sm);background:var(--bg-secondary);color:var(--text-primary);border:1px solid var(--border-color);font-size:.95rem;resize:vertical}.input-group input:focus,.input-group textarea:focus{outline:none;border-color:var(--accent)}.input-group textarea{min-height:100px}.toggle-group{display:flex;background:var(--bg-secondary);border-radius:var(--radius-sm);padding:4px;margin-bottom:16px}.toggle-btn{flex:1;padding:8px;text-align:center;border-radius:6px;border:none;background:transparent;color:var(--text-secondary);font-size:.85rem;font-weight:500;transition:all .2s}.toggle-btn.active{background:var(--accent);color:#fff}.quality-options{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:16px}.quality-btn{padding:12px 16px;border-radius:var(--radius-sm);border:1px solid var(--border-color);background:var(--bg-secondary);color:var(--text-secondary);text-align:left;transition:all .2s}.quality-btn:hover{border-color:var(--accent)}.quality-btn.active{border-color:var(--accent);background:#6366f11a;color:var(--accent)}.quality-btn .name{font-weight:600;font-size:.9rem;display:block}.quality-btn .desc{font-size:.75rem;color:var(--text-muted)}.generate-btn{width:100%;padding:14px;text-align:center;background:var(--gradient-accent);color:#fff;border:none;border-radius:var(--radius-sm);font-size:1rem;font-weight:600;transition:all .2s}.generate-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 32px var(--accent-glow)}.generate-btn:disabled{opacity:.5;cursor:not-allowed}.generator-result{margin-top:16px;text-align:center}.generator-result .msg{padding:12px;border-radius:var(--radius-sm);background:#6366f11a;color:var(--accent);margin-bottom:12px}.generator-result .msg.danger{background:#ef44441a;color:var(--red)}.generator-result .msg.success{background:#22c55e1a;color:var(--green)}.filter-bar{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px;justify-content:center}.filter-btn{padding:8px 18px;border-radius:100px;border:1px solid var(--border-color);background:transparent;color:var(--text-secondary);font-size:.85rem;transition:all .2s}.filter-btn:hover{border-color:var(--accent);color:var(--text-primary)}.filter-btn.active{background:var(--accent);color:#fff;border-color:var(--accent)}.inspiration-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}.inspiration-card{background:var(--bg-card);border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border-color);transition:all .2s}.inspiration-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--accent)}.inspiration-card .preview{height:200px;background:var(--bg-secondary);display:flex;align-items:center;justify-content:center;font-size:3rem}.inspiration-card .info{padding:16px}.inspiration-card .info h3{font-size:1rem;margin-bottom:4px}.inspiration-card .info p{color:var(--text-secondary);font-size:.85rem}.inspiration-card .info .tags{display:flex;gap:6px;margin-top:8px;flex-wrap:wrap}.inspiration-card .info .tag{padding:2px 10px;border-radius:100px;font-size:.75rem;background:#6366f11a;color:var(--accent)}.pricing-toggle{display:flex;align-items:center;justify-content:center;gap:12px;margin-bottom:40px}.pricing-toggle span{color:var(--text-secondary);font-size:.9rem}.pricing-toggle span.active{color:var(--text-primary);font-weight:600}.toggle-switch{width:48px;height:26px;border-radius:13px;background:var(--bg-card);border:1px solid var(--border-color);position:relative;cursor:pointer;transition:all .2s}.toggle-switch.active{background:var(--accent)}.toggle-switch:after{content:"";position:absolute;top:2px;left:2px;width:20px;height:20px;border-radius:50%;background:#fff;transition:all .2s}.toggle-switch.active:after{left:24px}.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;max-width:1000px;margin:0 auto}.pricing-card{background:var(--bg-card);border-radius:var(--radius-lg);border:1px solid var(--border-color);padding:32px 24px;text-align:center;transition:all .2s;position:relative}.pricing-card.featured{border-color:var(--accent);box-shadow:0 0 40px var(--accent-glow)}.pricing-card.featured:before{content:"Most Popular";position:absolute;top:-12px;left:50%;transform:translate(-50%);padding:4px 16px;border-radius:100px;background:var(--gradient-accent);color:#fff;font-size:.75rem;font-weight:600}.pricing-card:hover{border-color:var(--accent);transform:translateY(-4px)}.pricing-card .name{font-size:1.1rem;margin-bottom:8px}.pricing-card .price{font-size:2.5rem;font-weight:800;margin-bottom:4px}.pricing-card .price span{font-size:1rem;font-weight:400;color:var(--text-muted)}.pricing-card .period{color:var(--text-muted);font-size:.85rem;margin-bottom:20px}.pricing-card ul{list-style:none;text-align:left;margin-bottom:24px}.pricing-card ul li{padding:8px 0;font-size:.9rem;color:var(--text-secondary);display:flex;align-items:center;gap:8px}.pricing-card ul li:before{content:"✓";color:var(--green);font-weight:700}.blog-grid{display:grid;gap:24px}.blog-card{display:flex;gap:24px;background:var(--bg-card);border-radius:var(--radius-lg);border:1px solid var(--border-color);padding:24px;transition:all .2s}.blog-card:hover{border-color:var(--accent);transform:translateY(-2px)}.blog-card .thumb{width:200px;height:140px;border-radius:var(--radius-sm);background:var(--bg-secondary);flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:2.5rem}.blog-card .details{flex:1}.blog-card .details .date{color:var(--text-muted);font-size:.8rem;margin-bottom:6px}.blog-card .details h3{font-size:1.15rem;margin-bottom:6px}.blog-card .details p{color:var(--text-secondary);font-size:.9rem;line-height:1.6}.placeholder-page{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:100px 24px;text-align:center}.placeholder-page .icon{font-size:4rem;margin-bottom:24px;opacity:.5}.placeholder-page h2{margin-bottom:12px}.placeholder-page p{color:var(--text-secondary);max-width:400px;margin-bottom:24px}.alert{padding:16px;border-radius:var(--radius-sm);margin-bottom:16px;font-size:.9rem}.alert-info{background:#6366f11a;border:1px solid rgba(99,102,241,.2);color:var(--accent)}.alert-success{background:#22c55e1a;border:1px solid rgba(34,197,94,.2);color:var(--green)}.alert-warning{background:#f59e0b1a;border:1px solid rgba(245,158,11,.2);color:var(--orange)}@media(max-width:768px){.nav-links{display:none}.nav-links.open{display:flex;flex-direction:column;position:absolute;top:var(--nav-height);left:0;right:0;background:var(--bg-primary);border-bottom:1px solid var(--border-color);padding:16px}.mobile-menu-btn{display:block}.hero-features,.converter-layout,.generator-layout{grid-template-columns:1fr}.pricing-grid{grid-template-columns:1fr;max-width:400px}.blog-card{flex-direction:column}.blog-card .thumb{width:100%;height:180px}.inspiration-grid{grid-template-columns:1fr}}