@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap";*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif}.app{color:#1a202c;background:#f0f2f5;min-height:100vh;transition:background .25s,color .25s}.app.dark{color:#e2e8f0;background:#0d1117}.header{z-index:100;background:#fff;border-bottom:1px solid #e2e8f0;justify-content:space-between;align-items:center;height:60px;padding:0 24px;display:flex;position:sticky;top:0;box-shadow:0 1px 3px #0000000f}.app.dark .header{background:#161b22;border-bottom:1px solid #30363d}.logo{align-items:center;gap:10px;text-decoration:none;display:flex}.logo-icon{color:#fff;background:#e53e3e;border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;display:flex}.logo-text{color:#1a202c;letter-spacing:-.3px;font-size:18px;font-weight:700}.app.dark .logo-text{color:#f0f6fc}.header-nav{align-items:center;gap:12px;display:flex}.nav-link{color:#4a5568;border-radius:6px;align-items:center;gap:6px;padding:6px 10px;font-size:14px;font-weight:500;text-decoration:none;transition:background .15s;display:flex}.nav-link:hover{background:#edf2f7}.app.dark .nav-link{color:#8b949e}.app.dark .nav-link:hover{background:#21262d}.btn-install{color:#e53e3e;cursor:pointer;background:0 0;border:1.5px solid #e53e3e;border-radius:8px;align-items:center;gap:6px;padding:6px 14px;font-family:inherit;font-size:13px;font-weight:600;transition:all .15s;display:flex}.btn-install:hover{color:#fff;background:#e53e3e}.theme-toggle{cursor:pointer;color:#718096;background:0 0;border:1.5px solid #e2e8f0;border-radius:50%;justify-content:center;align-items:center;width:36px;height:36px;font-family:inherit;transition:all .15s;display:flex}.theme-toggle:hover{color:#1a202c;background:#edf2f7}.app.dark .theme-toggle{color:#8b949e;border-color:#30363d}.app.dark .theme-toggle:hover{color:#f0f6fc;background:#21262d}.main{max-width:1200px;margin:0 auto;padding:0 24px 60px}.hero{text-align:center;padding:64px 24px 48px}.hero-title{color:#1a202c;letter-spacing:-1px;margin-bottom:16px;font-size:clamp(32px,5vw,52px);font-weight:800;line-height:1.15}.app.dark .hero-title{color:#f0f6fc}.hero-accent{color:#e53e3e}.hero-sub{color:#718096;max-width:520px;margin:0 auto;font-size:16px;line-height:1.6}.app.dark .hero-sub{color:#8b949e}.tools-grid{grid-template-columns:repeat(5,1fr);gap:16px;display:grid}@media (width<=1100px){.tools-grid{grid-template-columns:repeat(4,1fr)}}@media (width<=860px){.tools-grid{grid-template-columns:repeat(3,1fr)}}@media (width<=600px){.tools-grid{grid-template-columns:repeat(2,1fr)}}.tool-card{cursor:pointer;background:#fff;border:1px solid #e2e8f0;border-radius:12px;outline:none;flex-direction:column;gap:14px;min-height:160px;padding:20px;transition:all .2s;display:flex;position:relative}.tool-card:hover{border-color:#cbd5e0;transform:translateY(-2px);box-shadow:0 8px 24px #00000014}.tool-card:focus-visible{outline-offset:2px;outline:2px solid #e53e3e}.app.dark .tool-card{background:#161b22;border-color:#30363d}.app.dark .tool-card:hover{border-color:#484f58;box-shadow:0 8px 24px #0000004d}.tool-icon{border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;width:48px;height:48px;display:flex}.tool-content{flex:1}.tool-title{color:#1a202c;margin-bottom:6px;font-size:15px;font-weight:700}.app.dark .tool-title{color:#f0f6fc}.tool-desc{color:#718096;font-size:12px;line-height:1.5}.app.dark .tool-desc{color:#8b949e}.tool-arrow{color:#cbd5e0;transition:color .15s,transform .15s;position:absolute;bottom:14px;right:14px}.tool-card:hover .tool-arrow{color:#718096;transform:translate(2px)}.app.dark .tool-arrow{color:#484f58}.app.dark .tool-card:hover .tool-arrow{color:#8b949e}.page-container{max-width:760px;margin:48px auto;padding:0 16px}.page-back{color:#718096;align-items:center;gap:6px;margin-bottom:28px;font-size:13px;font-weight:500;text-decoration:none;transition:color .15s;display:inline-flex}.page-back:hover{color:#e53e3e}.page-header{align-items:center;gap:16px;margin-bottom:32px;display:flex}.page-icon{border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;width:52px;height:52px;display:flex}.page-title{color:#1a202c;letter-spacing:-.5px;font-size:26px;font-weight:800}.app.dark .page-title{color:#f0f6fc}.page-subtitle{color:#718096;margin-top:4px;font-size:14px}.app.dark .page-subtitle{color:#8b949e}.card{background:#fff;border:1px solid #e2e8f0;border-radius:12px;margin-bottom:16px;padding:24px}.app.dark .card{background:#161b22;border-color:#30363d}.upload-zone{cursor:pointer;text-align:center;background:#f7fafc;border:2px dashed #cbd5e0;border-radius:12px;flex-direction:column;justify-content:center;align-items:center;min-height:200px;padding:32px;transition:all .2s;display:flex}.upload-zone:hover,.upload-zone.drag-active{background:#e53e3e0a;border-color:#e53e3e}.app.dark .upload-zone{background:#0d1117;border-color:#30363d}.app.dark .upload-zone:hover,.app.dark .upload-zone.drag-active{background:#e53e3e0f;border-color:#e53e3e}.upload-icon-wrap{background:#edf2f7;border-radius:50%;justify-content:center;align-items:center;width:64px;height:64px;margin-bottom:16px;transition:background .2s;display:flex}.upload-zone:hover .upload-icon-wrap,.upload-zone.drag-active .upload-icon-wrap{background:#e53e3e1a}.app.dark .upload-icon-wrap{background:#21262d}.upload-title{color:#2d3748;margin-bottom:6px;font-size:16px;font-weight:600}.app.dark .upload-title{color:#c9d1d9}.upload-sub{color:#a0aec0;font-size:13px}.file-list{flex-direction:column;gap:8px;margin-top:16px;display:flex}.file-item{background:#fff;border:1px solid #e2e8f0;border-radius:8px;align-items:center;gap:12px;padding:12px 16px;display:flex}.app.dark .file-item{background:#161b22;border-color:#30363d}.file-name{color:#2d3748;white-space:nowrap;text-overflow:ellipsis;flex:1;font-size:13px;font-weight:500;overflow:hidden}.app.dark .file-name{color:#c9d1d9}.file-size{color:#a0aec0;font-size:11px}.file-remove{cursor:pointer;color:#a0aec0;background:0 0;border:none;border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;width:28px;height:28px;font-family:inherit;transition:all .15s;display:flex}.file-remove:hover{color:#c53030;background:#fed7d7}.app.dark .file-remove:hover{color:#fc8181;background:#e53e3e26}.btn-primary{color:#fff;cursor:pointer;background:#e53e3e;border:none;border-radius:8px;align-items:center;gap:8px;padding:11px 24px;font-family:inherit;font-size:14px;font-weight:600;text-decoration:none;transition:background .15s,transform .1s;display:inline-flex}.btn-primary:hover{background:#c53030;transform:translateY(-1px)}.btn-primary:disabled{cursor:not-allowed;background:#a0aec0;transform:none}.btn-secondary{color:#4a5568;cursor:pointer;background:0 0;border:1.5px solid #e2e8f0;border-radius:8px;align-items:center;gap:8px;padding:11px 24px;font-family:inherit;font-size:14px;font-weight:600;transition:all .15s;display:inline-flex}.btn-secondary:hover{background:#f7fafc;border-color:#cbd5e0}.app.dark .btn-secondary{color:#8b949e;border-color:#30363d}.app.dark .btn-secondary:hover{background:#21262d}.label{color:#4a5568;text-transform:uppercase;letter-spacing:.4px;margin-bottom:6px;font-size:12px;font-weight:600;display:block}.app.dark .label{color:#8b949e}.input{color:#1a202c;background:#fff;border:1.5px solid #e2e8f0;border-radius:8px;outline:none;width:100%;height:40px;padding:0 12px;font-family:inherit;font-size:14px;transition:border-color .15s}.input:focus{border-color:#e53e3e}.app.dark .input{color:#c9d1d9;background:#0d1117;border-color:#30363d}.app.dark .input:focus{border-color:#e53e3e}.toggle-tabs{border:1.5px solid #e2e8f0;border-radius:8px;gap:0;margin-bottom:20px;display:flex;overflow:hidden}.app.dark .toggle-tabs{border-color:#30363d}.tab-btn{color:#718096;cursor:pointer;background:0 0;border:none;flex:1;padding:9px 16px;font-family:inherit;font-size:13px;font-weight:600;transition:all .15s}.tab-btn:not(:last-child){border-right:1.5px solid #e2e8f0}.app.dark .tab-btn:not(:last-child){border-right-color:#30363d}.tab-btn:not(.active):hover{color:#2d3748;background:#f7fafc}.app.dark .tab-btn:not(.active):hover{color:#c9d1d9;background:#21262d}.range-row{align-items:flex-end;gap:12px;display:flex}.range-row .field{flex:1}.overlay{z-index:999;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#00000080;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.overlay-card{text-align:center;background:#fff;border-radius:16px;min-width:300px;padding:40px;box-shadow:0 25px 50px #00000026}.app.dark .overlay-card{background:#161b22}.overlay-spinner{border:3px solid #e2e8f0;border-top-color:#e53e3e;border-radius:50%;width:48px;height:48px;margin:0 auto 20px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.overlay-title{color:#1a202c;margin-bottom:16px;font-size:17px;font-weight:700}.app.dark .overlay-title{color:#f0f6fc}.progress-bar{background:#edf2f7;border-radius:999px;height:6px;margin-bottom:8px;overflow:hidden}.progress-fill{background:#e53e3e;border-radius:999px;height:100%;transition:width .3s}.progress-text{color:#a0aec0;font-variant-numeric:tabular-nums;font-size:12px}.coming-soon-box{text-align:center;padding:80px 24px}.coming-soon-icon{color:#a0aec0;background:#edf2f7;border-radius:50%;justify-content:center;align-items:center;width:80px;height:80px;margin:0 auto 24px;display:flex}.app.dark .coming-soon-icon{background:#21262d}.coming-soon-box h2{color:#1a202c;margin-bottom:10px;font-size:24px;font-weight:700}.app.dark .coming-soon-box h2{color:#f0f6fc}.coming-soon-box p{color:#718096;margin-bottom:28px}.action-row{justify-content:flex-end;gap:10px;margin-top:24px;display:flex}.info-box{color:#2b6cb0;background:#3182ce14;border:1px solid #3182ce33;border-radius:8px;margin-bottom:20px;padding:12px 16px;font-size:13px}.app.dark .info-box{color:#63b3ed;background:#3182ce1a;border-color:#3182ce33}.position-btn{cursor:pointer;background:#fff;border:1px solid #e2e8f0;border-radius:8px;justify-content:center;align-items:center;width:100%;height:52px;font-size:18px;transition:all .2s;display:flex}.position-btn:hover{background:#f8fafc;border-color:#cbd5e0}.position-btn.active{color:#1e40af;background:#dbeafe!important;border:2px solid #3b82f6!important}.layer-btn{cursor:pointer;text-align:center;background:#fff;border:1px solid #e2e8f0;border-radius:8px;flex:1;padding:14px 16px;font-weight:500;transition:all .2s}.layer-btn:hover{background:#f8fafc;border-color:#cbd5e0}.layer-btn.active{color:#1e40af;background:#dbeafe!important;border:2px solid #3b82f6!important}.app.dark .position-btn{color:#c9d1d9;background:#161b22;border-color:#30363d}.app.dark .position-btn:hover{background:#21262d}.app.dark .position-btn.active{color:#bfdbfe;background:#1e3a8a!important;border-color:#60a5fa!important}.app.dark .layer-btn{color:#c9d1d9;background:#161b22;border-color:#30363d}.app.dark .layer-btn:hover{background:#21262d}.app.dark .layer-btn.active{color:#bfdbfe;background:#1e3a8a!important;border-color:#60a5fa!important}.tab-btn{transition:all .2s}.tab-btn.active{color:#fff;background:#ef4444}.features-footer{text-align:center;border-top:1px solid #e2e8f0;grid-template-columns:repeat(3,1fr);gap:32px;margin-top:64px;padding:64px 24px;display:grid}.app.dark .features-footer{background:#0d1117;border-color:#30363d}.feature-item{flex-direction:column;align-items:center;display:flex}.feature-icon{border-radius:50%;justify-content:center;align-items:center;width:48px;height:48px;margin-bottom:20px;display:flex}.feature-title{color:#1a202c;margin-bottom:12px;font-size:16px;font-weight:700}.app.dark .feature-title{color:#f0f6fc}.feature-text{color:#718096;max-width:320px;font-size:14px;line-height:1.6}.app.dark .feature-text{color:#8b949e}@media (width<=768px){.features-footer{grid-template-columns:1fr;gap:48px;padding:48px 16px}}