@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap";
:root{--bg-primary:#07090f;--bg-secondary:#0d1117;--bg-card:#0f1423bf;--bg-card-hover:#141c32d9;--bg-input:#141928e6;--bg-input-focus:#192037f2;--accent-blue:#4f8ff7;--accent-blue-hover:#6ba3ff;--accent-purple:#8b5cf6;--accent-cyan:#06b6d4;--accent-green:#22c55e;--accent-red:#ef4444;--text-primary:#f0f2f5;--text-secondary:#9ca3af;--text-muted:#6b7280;--border-subtle:#ffffff0f;--border-accent:#4f8ff74d;--glow-blue:0 0 30px #4f8ff726;--glow-blue-strong:0 0 60px #4f8ff740;--space-xs:.25rem;--space-sm:.5rem;--space-md:1rem;--space-lg:1.5rem;--space-xl:2rem;--space-2xl:3rem;--space-3xl:4rem;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:20px;--radius-full:9999px;--transition-fast:.15s ease;--transition-base:.25s ease;--transition-smooth:.35s cubic-bezier(.4,0,.2,1);--font-family:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-family);background:var(--bg-primary);color:var(--text-primary);min-height:100vh;line-height:1.6;overflow-x:hidden}a{color:var(--accent-blue);transition:color var(--transition-fast);text-decoration:none}a:hover{color:var(--accent-blue-hover)}.page-bg{z-index:-1;background:radial-gradient(ellipse 80% 60% at 50% -20%,#4f8ff714 0%,transparent 70%),radial-gradient(ellipse 60% 40% at 80% 50%,#8b5cf60a 0%,transparent 60%),radial-gradient(ellipse 60% 40% at 20% 80%,#06b6d408 0%,transparent 60%),var(--bg-primary);position:fixed;inset:0}.container{max-width:1200px;padding:0 var(--space-xl);margin:0 auto}.navbar{z-index:100;-webkit-backdrop-filter:blur(20px)saturate(180%);border-bottom:1px solid var(--border-subtle);background:#07090fcc;position:sticky;top:0}.navbar-inner{justify-content:space-between;align-items:center;height:64px;display:flex}.navbar-brand{align-items:center;gap:var(--space-sm);color:var(--text-primary);font-size:1.2rem;font-weight:700;text-decoration:none;display:flex}.navbar-brand svg{width:32px;height:32px}.navbar-links{align-items:center;gap:var(--space-lg);list-style:none;display:flex}.navbar-links a{color:var(--text-secondary);transition:color var(--transition-fast);font-size:.9rem;font-weight:500}.navbar-links a:hover{color:var(--text-primary)}.hero{padding:var(--space-3xl)0 var(--space-2xl);text-align:center}.hero-title{letter-spacing:-.02em;margin-bottom:var(--space-md);background:linear-gradient(135deg,var(--text-primary)0%,var(--accent-blue)100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:clamp(2rem,5vw,3.2rem);font-weight:800}.hero-subtitle{color:var(--text-secondary);max-width:600px;margin:0 auto var(--space-2xl);font-size:1.1rem;line-height:1.7}.hero-tools{justify-content:center;align-items:center;gap:var(--space-md);margin-top:var(--space-xl);flex-wrap:wrap;display:flex}.hero-tool-btn{align-items:center;gap:var(--space-sm);border-radius:var(--radius-full);background:var(--bg-card);border:1px solid var(--border-subtle);color:var(--text-secondary);transition:all var(--transition-smooth);-webkit-backdrop-filter:blur(8px);padding:10px 22px;font-size:.9rem;font-weight:500;text-decoration:none;display:inline-flex}.hero-tool-btn:hover{background:var(--bg-card-hover);border-color:var(--border-accent);color:var(--text-primary);box-shadow:var(--glow-blue);transform:translateY(-2px)}.hero-tool-btn-active{background:var(--bg-card-hover);border-color:var(--accent-blue);color:var(--text-primary);box-shadow:var(--glow-blue)}.hero-tool-icon{font-size:1.1rem}.downloader-card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);max-width:720px;padding:var(--space-lg);-webkit-backdrop-filter:blur(12px);box-shadow:var(--glow-blue);transition:box-shadow var(--transition-smooth);margin:0 auto}.downloader-card:focus-within{box-shadow:var(--glow-blue-strong);border-color:var(--border-accent)}.url-input{width:100%;min-height:80px;padding:var(--space-md)var(--space-lg);background:var(--bg-input);border:1px solid var(--border-subtle);border-radius:var(--radius-md);color:var(--text-primary);font-family:var(--font-family);resize:none;transition:all var(--transition-base);outline:none;font-size:.95rem}.url-input::placeholder{color:var(--text-muted)}.url-input:focus{background:var(--bg-input-focus);border-color:var(--border-accent)}.downloader-actions{justify-content:flex-end;align-items:center;gap:var(--space-sm);margin-top:var(--space-md);display:flex}.btn{align-items:center;gap:var(--space-sm);border-radius:var(--radius-sm);font-family:var(--font-family);cursor:pointer;transition:all var(--transition-base);border:none;padding:10px 24px;font-size:.9rem;font-weight:600;text-decoration:none;display:inline-flex}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--accent-blue);color:#fff;box-shadow:0 2px 12px #4f8ff74d}.btn-primary:hover:not(:disabled){background:var(--accent-blue-hover);transform:translateY(-1px);box-shadow:0 4px 20px #4f8ff766}.btn-secondary{color:var(--text-secondary);border:1px solid var(--border-subtle);background:#ffffff0f}.btn-secondary:hover:not(:disabled){color:var(--text-primary);background:#ffffff1a}.btn-download-main{background:linear-gradient(135deg,var(--accent-blue),var(--accent-purple));color:#fff;border-radius:var(--radius-md);padding:12px 32px;font-size:1rem;box-shadow:0 4px 20px #4f8ff74d}.btn-download-main:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 30px #4f8ff773}.spinner{border:2px solid #ffffff4d;border-top-color:#fff;border-radius:50%;width:20px;height:20px;animation:.6s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.status-message{align-items:center;gap:var(--space-sm);padding:var(--space-md)var(--space-lg);border-radius:var(--radius-md);margin-top:var(--space-md);font-size:.9rem;animation:.3s fadeIn;display:flex}.status-loading{color:var(--accent-blue);background:#4f8ff71a;border:1px solid #4f8ff733}.status-error{color:var(--accent-red);background:#ef44441a;border:1px solid #ef444433}.status-success{color:var(--accent-green);background:#22c55e1a;border:1px solid #22c55e33}@keyframes fadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.result-card{max-width:720px;margin:var(--space-xl)auto 0;background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);animation:.4s slideUp;overflow:hidden}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.result-thumbnail-wrapper,.result-video-wrapper{background:var(--bg-secondary);border-radius:var(--radius-lg)var(--radius-lg)0 0;width:100%;position:relative;overflow:hidden}.result-thumbnail{object-fit:cover;width:100%;height:100%}.result-video{border-radius:var(--radius-lg)var(--radius-lg)0 0;background:#000;width:100%;max-height:500px;display:block}.result-body{padding:var(--space-lg)}.result-label{text-transform:uppercase;letter-spacing:.08em;color:var(--accent-blue);margin-bottom:var(--space-xs);text-align:left;font-size:.75rem;font-weight:600}.result-label-row{margin-bottom:var(--space-xs);justify-content:space-between;align-items:center;display:flex}.result-label-row .result-label{margin-bottom:0}.btn-copy-prompt{border-radius:var(--radius-full);background:var(--bg-card);border:1px solid var(--border-subtle);color:var(--text-secondary);cursor:pointer;transition:all var(--transition-smooth);align-items:center;gap:4px;padding:4px 10px;font-size:.72rem;font-weight:500;display:inline-flex}.btn-copy-prompt:hover{background:var(--bg-card-hover);border-color:var(--border-accent);color:var(--text-primary)}.result-creator{color:var(--text-secondary);margin-bottom:var(--space-md);font-size:.85rem}.result-prompt{color:var(--text-secondary);padding:var(--space-md);border-radius:var(--radius-sm);border:1px solid var(--border-subtle);margin-bottom:var(--space-lg);background:#ffffff08;font-size:.95rem;line-height:1.7}.result-download-actions{gap:var(--space-sm);flex-wrap:wrap;display:flex}.section{padding:var(--space-3xl)0}.section-title{text-align:center;margin-bottom:var(--space-md);letter-spacing:-.01em;font-size:clamp(1.5rem,3vw,2.2rem);font-weight:700}.section-subtitle{text-align:center;color:var(--text-secondary);max-width:600px;margin:0 auto var(--space-2xl);font-size:1rem}.features-grid{gap:var(--space-lg);grid-template-columns:repeat(auto-fit,minmax(240px,1fr));display:grid}.feature-card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:var(--space-xl);transition:all var(--transition-smooth);position:relative;overflow:hidden}.feature-card:before{content:"";background:linear-gradient(90deg,transparent,var(--accent-blue),transparent);opacity:0;height:2px;transition:opacity var(--transition-smooth);position:absolute;top:0;left:0;right:0}.feature-card:hover{background:var(--bg-card-hover);border-color:var(--border-accent);box-shadow:var(--glow-blue);transform:translateY(-4px)}.feature-card:hover:before{opacity:1}.feature-icon{border-radius:var(--radius-md);width:48px;height:48px;margin-bottom:var(--space-md);justify-content:center;align-items:center;font-size:1.4rem;display:flex}.feature-icon-blue{color:var(--accent-blue);background:#4f8ff726}.feature-icon-green{color:var(--accent-green);background:#22c55e26}.feature-icon-purple{color:var(--accent-purple);background:#8b5cf626}.feature-icon-cyan{color:var(--accent-cyan);background:#06b6d426}.feature-title{margin-bottom:var(--space-sm);font-size:1.05rem;font-weight:600}.feature-desc{color:var(--text-secondary);font-size:.88rem;line-height:1.6}.steps-grid{gap:var(--space-xl);grid-template-columns:repeat(auto-fit,minmax(280px,1fr));display:grid;position:relative}.step-card{text-align:center;padding:var(--space-xl)}.step-number{background:linear-gradient(135deg,var(--accent-blue),var(--accent-purple));color:#fff;width:48px;height:48px;margin-bottom:var(--space-md);border-radius:50%;justify-content:center;align-items:center;font-size:1.1rem;font-weight:700;display:inline-flex;box-shadow:0 4px 15px #4f8ff74d}.step-title{margin-bottom:var(--space-sm);font-size:1.1rem;font-weight:600}.step-desc{color:var(--text-secondary);font-size:.88rem;line-height:1.6}.step-image{width:100%;max-width:100%;height:auto;margin-top:var(--space-lg);border-radius:var(--radius-md);border:1px solid var(--border-subtle);object-fit:cover}.faq-list{gap:var(--space-sm);flex-direction:column;max-width:1200px;margin:0 auto;display:flex}.faq-item{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-md);transition:border-color var(--transition-base);overflow:hidden}.faq-item.open{border-color:var(--border-accent)}.faq-question{width:100%;padding:var(--space-md)var(--space-lg);color:var(--text-primary);font-family:var(--font-family);cursor:pointer;text-align:left;transition:color var(--transition-fast);background:0 0;border:none;justify-content:space-between;align-items:center;font-size:.95rem;font-weight:500;display:flex}.faq-question:hover{color:var(--accent-blue)}.faq-chevron{transition:transform var(--transition-base);margin-left:var(--space-md);flex-shrink:0}.faq-item.open .faq-chevron{transform:rotate(180deg)}.faq-answer{max-height:0;transition:max-height var(--transition-smooth),padding var(--transition-smooth);overflow:hidden}.faq-item.open .faq-answer{max-height:300px}.faq-answer-inner{padding:0 var(--space-lg)var(--space-md);color:var(--text-secondary);font-size:.9rem;line-height:1.7}.bulk-url-input{resize:vertical;min-height:130px;font-size:.88rem;line-height:1.6}.bulk-progress{align-items:center;gap:var(--space-sm);margin-top:var(--space-md);display:flex}.bulk-progress-bar{background:var(--bg-card);border-radius:99px;flex:1;height:6px;overflow:hidden}.bulk-progress-fill{background:linear-gradient(90deg,var(--accent-blue),var(--accent-purple));border-radius:99px;height:100%;transition:width .4s}.bulk-progress-label{color:var(--text-muted);white-space:nowrap;font-size:.8rem}.bulk-results{gap:var(--space-md);margin-top:var(--space-lg);flex-direction:column;width:100%;max-width:720px;margin-left:auto;margin-right:auto;display:flex}.bulk-summary{text-align:center;padding:var(--space-sm)var(--space-md);border-radius:var(--radius-md);background:#10b98114;border:1px solid #10b98140}.bulk-summary-count{color:#10b981;font-size:.95rem;font-weight:600}.bulk-result-card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);transition:border-color .2s;overflow:hidden}.bulk-result-card.success{border-color:#10b9814d}.bulk-result-card.error{border-color:#ef44444d}.bulk-result-card.loading{border-color:var(--accent-blue);box-shadow:0 0 0 1px #4f8ff726}.bulk-result-header{align-items:center;gap:var(--space-sm);padding:var(--space-sm)var(--space-md);border-bottom:1px solid var(--border-subtle);background:var(--bg-card);flex-wrap:wrap;display:flex}.bulk-result-index{color:var(--text-muted);min-width:24px;font-size:.8rem;font-weight:700}.bulk-result-url{color:var(--text-secondary);word-break:break-all;flex:1;font-family:Courier New,monospace;font-size:.78rem}.bulk-result-badge{white-space:nowrap;border-radius:99px;align-items:center;gap:4px;padding:3px 10px;font-size:.75rem;font-weight:600;display:flex}.badge-pending{color:var(--text-muted);background:#6b728026}.badge-loading{color:var(--accent-blue);background:#4f8ff726}.badge-success{color:#10b981;background:#10b98126}.badge-error{color:#ef4444;background:#ef444426}.spinner-sm{border-width:1.5px;width:10px;height:10px}.bulk-result-error{padding:var(--space-sm)var(--space-md);color:#ef4444;font-size:.85rem}.bulk-result-body{gap:var(--space-md);padding:var(--space-md);align-items:flex-start;display:flex}.bulk-result-video{border-radius:var(--radius-md);aspect-ratio:9/16;object-fit:cover;background:#000;width:200px;min-width:200px}.bulk-result-info{gap:var(--space-sm);flex-direction:column;flex:1;min-width:0;display:flex}.bulk-result-prompt-block{flex-direction:column;gap:4px;display:flex}@media (max-width:600px){.bulk-result-body{flex-direction:column}.bulk-result-video{width:100%;min-width:unset;aspect-ratio:16/9}}.cta-section{text-align:center;padding:var(--space-3xl)0}.cta-section .section-title{background:linear-gradient(135deg,var(--text-primary)0%,var(--accent-blue)100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.footer{border-top:1px solid var(--border-subtle);padding:var(--space-2xl)0}.footer-inner{justify-content:space-between;align-items:center;gap:var(--space-md);flex-wrap:wrap;display:flex}.footer-links{gap:var(--space-lg);list-style:none;display:flex}.footer-links a{color:var(--text-muted);font-size:.85rem}.footer-links a:hover{color:var(--text-secondary)}.footer-copy{color:var(--text-muted);font-size:.85rem}.content-article{padding:var(--space-2xl)0 var(--space-3xl);border-top:1px solid var(--border-subtle)}.content-block{max-width:1200px;margin:0 auto var(--space-3xl)}.content-block:last-child{margin-bottom:0}.content-block h2{margin-bottom:var(--space-lg);padding-bottom:var(--space-sm);border-bottom:2px solid var(--border-accent);background:linear-gradient(135deg,var(--text-primary)0%,var(--accent-blue)100%);-webkit-text-fill-color:transparent;text-align:center;-webkit-background-clip:text;background-clip:text;font-size:clamp(1.3rem,2.5vw,1.8rem);font-weight:700}.content-block h3{color:var(--text-primary);margin-top:var(--space-lg);margin-bottom:var(--space-sm);font-size:1.1rem;font-weight:600}.content-block p{color:var(--text-secondary);margin-bottom:var(--space-md);font-size:.95rem;line-height:1.8}.content-block ul{margin-bottom:var(--space-md);padding-left:var(--space-sm);list-style:none}.content-block ul li{padding-left:var(--space-lg);color:var(--text-secondary);margin-bottom:var(--space-xs);font-size:.95rem;line-height:1.8;position:relative}.content-block ul li:before{content:"";background:var(--accent-blue);border-radius:50%;width:6px;height:6px;position:absolute;top:.7em;left:0}.content-block strong{color:var(--text-primary);font-weight:600}.content-block a{color:var(--accent-blue);text-underline-offset:3px;transition:text-decoration-color var(--transition-fast);-webkit-text-decoration:underline #4f8ff74d;text-decoration:underline #4f8ff74d}.content-block a:hover{-webkit-text-decoration-color:var(--accent-blue);text-decoration-color:var(--accent-blue)}.content-table-wrapper{margin-bottom:var(--space-lg);border-radius:var(--radius-md);border:1px solid var(--border-subtle);overflow-x:auto}.content-table{border-collapse:collapse;width:100%;font-size:.9rem}.content-table thead{background:#4f8ff71a}.content-table th{padding:var(--space-md)var(--space-lg);text-align:left;color:var(--accent-blue);text-transform:uppercase;letter-spacing:.05em;border-bottom:1px solid var(--border-accent);font-size:.85rem;font-weight:600}.content-table td{padding:var(--space-sm)var(--space-lg);color:var(--text-secondary);border-bottom:1px solid var(--border-subtle)}.content-table tbody tr:last-child td{border-bottom:none}.content-table tbody tr:hover{background:#ffffff05}.benefits-grid{gap:var(--space-md);margin:var(--space-lg)0;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));display:grid}.benefit-item{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-md);padding:var(--space-lg);transition:all var(--transition-smooth)}.benefit-item:hover{border-color:var(--border-accent);box-shadow:var(--glow-blue);transform:translateY(-2px)}.benefit-item h3{font-size:1rem;margin-top:0!important;margin-bottom:var(--space-xs)!important;color:var(--accent-blue)!important}.benefit-item p{margin-bottom:0;font-size:.88rem}.error-solutions{gap:var(--space-md);margin:var(--space-lg)0;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));display:grid}.error-item{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-md);padding:var(--space-lg);border-left:3px solid var(--accent-red)}.error-item h3{font-size:.95rem;color:var(--accent-red)!important;margin-top:0!important}.error-item p{margin-bottom:0;font-size:.88rem}.content-faq h3{font-size:1rem;color:var(--accent-blue)!important}.content-faq p{padding-left:var(--space-lg);border-left:2px solid var(--border-subtle);margin-bottom:var(--space-lg)}@media (max-width:768px){.container{padding:0 var(--space-md)}.navbar-links{display:none}.hero{padding:var(--space-2xl)0 var(--space-xl)}.hero-title{font-size:1.8rem}.hero-subtitle{margin-bottom:var(--space-xl);font-size:.95rem}.hero-tools{gap:var(--space-sm)}.hero-tool-btn{padding:8px 16px;font-size:.82rem}.downloader-card{padding:var(--space-md)}.url-input{min-height:60px;font-size:.88rem}.result-download-actions{flex-direction:column}.result-download-actions .btn{justify-content:center;width:100%}.result-body{padding:var(--space-md)}.result-prompt{padding:var(--space-sm)var(--space-md);font-size:.88rem}.section{padding:var(--space-2xl)0}.section-title{font-size:1.4rem}.section-subtitle{font-size:.9rem}.features-grid{gap:var(--space-md);grid-template-columns:repeat(2,1fr)}.feature-card{padding:var(--space-lg)}.feature-icon{width:40px;height:40px;font-size:1.2rem}.steps-grid{gap:var(--space-md);grid-template-columns:1fr}.step-card{padding:var(--space-lg)}.faq-question{padding:var(--space-md);font-size:.88rem}.faq-answer-inner{padding:0 var(--space-md)var(--space-md);font-size:.85rem}.content-article{padding:var(--space-xl)0 var(--space-2xl)}.content-block{margin-bottom:var(--space-2xl)}.content-block h2{font-size:1.3rem}.content-block h3{font-size:1rem}.content-block p,.content-block ul li{font-size:.9rem}.benefits-grid{grid-template-columns:1fr}.benefit-item{padding:var(--space-md)}.content-table th,.content-table td{padding:var(--space-sm)var(--space-md);font-size:.82rem}.content-table th{font-size:.75rem}.error-solutions{grid-template-columns:1fr}.error-item{padding:var(--space-md)}.cta-section{padding:var(--space-2xl)0}.footer-inner{text-align:center;flex-direction:column}.footer-links{justify-content:center}}@media (max-width:480px){.container{padding:0 var(--space-sm)}.hero-title{font-size:1.5rem}.hero-subtitle{font-size:.88rem}.hero-tools{flex-direction:column;align-items:stretch}.hero-tool-btn{justify-content:center}.features-grid{grid-template-columns:1fr}.downloader-card{padding:var(--space-sm)}.url-input{min-height:50px;padding:var(--space-sm)var(--space-md)}.btn{padding:8px 16px;font-size:.82rem}.btn-download-main{padding:10px 24px;font-size:.9rem}.section-title{font-size:1.2rem}.content-block h2{font-size:1.15rem}.content-table-wrapper{margin-left:calc(-1*var(--space-sm));margin-right:calc(-1*var(--space-sm));border-left:none;border-right:none;border-radius:0}.result-thumbnail-wrapper{aspect-ratio:4/3}.benefit-item h3{font-size:.9rem!important}.benefit-item p{font-size:.82rem}.navbar-brand{font-size:1rem}.navbar-brand svg{width:28px;height:28px}}.auth-section{min-height:calc(100vh - 180px);padding:var(--space-2xl)var(--space-xl);justify-content:center;align-items:center;display:flex}.auth-card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-xl);width:100%;max-width:420px;padding:var(--space-2xl);-webkit-backdrop-filter:blur(12px);box-shadow:var(--glow-blue)}.auth-title{text-align:center;margin-bottom:var(--space-xs);font-size:1.6rem;font-weight:700}.auth-subtitle{text-align:center;color:var(--text-secondary);margin-bottom:var(--space-xl);font-size:.9rem}.btn-google{justify-content:center;align-items:center;gap:var(--space-sm);color:#333;border-radius:var(--radius-sm);cursor:pointer;width:100%;transition:all var(--transition-base);font-size:.9rem;font-weight:600;font-family:var(--font-family);background:#fff;border:1px solid #ddd;padding:12px;display:flex}.btn-google:hover{background:#f5f5f5;box-shadow:0 2px 8px 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