:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;justify-content:center;align-items:flex-start;min-width:320px;min-height:100vh}#root{width:100%;display:flex;justify-content:center}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}.container{max-width:800px;width:100%;margin:0 auto;padding:2rem}header{text-align:center;margin-bottom:3rem}header h1{font-size:2.5rem;margin-bottom:.5rem;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}header p{color:#888;font-size:1.1rem;margin-bottom:1.5rem}@media (prefers-color-scheme: light){header p{color:#666}}.demo-btn{padding:.75rem 1.5rem;font-size:1rem;font-weight:600;border-radius:8px;cursor:pointer;transition:all .3s ease;border:2px solid rgba(255,215,0,.4);background:linear-gradient(135deg,#ffd70026,#ffc10726);color:gold}.demo-btn:hover{border-color:gold;background:linear-gradient(135deg,#ffd70040,#ffc10740);transform:translateY(-2px);box-shadow:0 4px 12px #ffd7004d}@media (prefers-color-scheme: light){.demo-btn{color:#d97706;border-color:#d977064d;background:linear-gradient(135deg,#fbbf241a,#f59e0b1a)}.demo-btn:hover{border-color:#d97706;background:linear-gradient(135deg,#fbbf2433,#f59e0b33)}}.video-form{background:#ffffff0d;border-radius:12px;padding:2rem;box-shadow:0 8px 32px #0000001a;border:1px solid rgba(255,255,255,.1)}@media (prefers-color-scheme: light){.video-form{background:#00000005;border:1px solid rgba(0,0,0,.1);box-shadow:0 8px 32px #0000000d}}.url-inputs{display:flex;flex-direction:column;gap:1.5rem;margin-bottom:2rem}.url-input-group label{display:block;margin-bottom:.5rem;font-weight:500;color:#ddd}@media (prefers-color-scheme: light){.url-input-group label{color:#333}}.input-wrapper{display:flex;gap:.5rem;align-items:center}.input-wrapper input{flex:1;padding:.75rem 1rem;font-size:1rem;border:2px solid rgba(255,255,255,.2);border-radius:8px;background:#ffffff0d;color:#fff;transition:all .3s ease}@media (prefers-color-scheme: light){.input-wrapper input{border:2px solid rgba(0,0,0,.2);background:#fff;color:#000}}.input-wrapper input:focus{outline:none;border-color:#667eea;background:#ffffff14}@media (prefers-color-scheme: light){.input-wrapper input:focus{background:#fff}}.input-wrapper input::placeholder{color:#666}@media (prefers-color-scheme: light){.input-wrapper input::placeholder{color:#999}}.remove-btn{padding:.75rem;background:#ef444433;border:1px solid rgba(239,68,68,.3);border-radius:8px;color:#ef4444;cursor:pointer;transition:all .3s ease;font-size:1.2rem;line-height:1;width:44px;height:44px;display:flex;align-items:center;justify-content:center}.remove-btn:hover{background:#ef44444d;border-color:#ef4444}.button-group{display:flex;gap:1rem;flex-wrap:wrap}.add-btn,.submit-btn{padding:.875rem 1.5rem;font-size:1rem;font-weight:600;border-radius:8px;cursor:pointer;transition:all .3s ease;border:none}.add-btn{background:#ffffff1a;color:#fff;border:1px solid rgba(255,255,255,.2)}@media (prefers-color-scheme: light){.add-btn{background:#0000000d;color:#333;border:1px solid rgba(0,0,0,.2)}}.add-btn:hover{background:#ffffff26;border-color:#ffffff4d}@media (prefers-color-scheme: light){.add-btn:hover{background:#00000014;border-color:#0000004d}}.submit-btn{flex:1;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;min-width:200px}.submit-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 16px #667eea4d}.submit-btn:disabled{opacity:.6;cursor:not-allowed}.message{margin-top:1.5rem;padding:1rem 1.25rem;border-radius:8px;animation:slideIn .3s ease}@keyframes slideIn{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.message.error{background:#ef44441a;border:1px solid rgba(239,68,68,.3);color:#fca5a5}.message.success{background:#22c55e1a;border:1px solid rgba(34,197,94,.3);color:#86efac}.result-details{margin-top:1rem;padding-top:1rem;border-top:1px solid rgba(255,255,255,.1)}@media (prefers-color-scheme: light){.result-details{border-top:1px solid rgba(0,0,0,.1)}}.result-details p{margin:.5rem 0;word-break:break-all}.download-link{display:inline-block;padding:1rem 2rem;margin:1rem 0;background:linear-gradient(135deg,#10b981,#059669);color:#fff;text-decoration:none;border-radius:8px;font-weight:600;font-size:1.1rem;transition:all .3s ease;box-shadow:0 4px 12px #10b9814d}.download-link:hover{transform:translateY(-2px);box-shadow:0 6px 20px #10b98166}.small-text{font-size:.9rem;opacity:.8}footer{text-align:center;margin-top:3rem;padding-top:2rem;border-top:1px solid rgba(255,255,255,.1);color:#888;font-size:.9rem}@media (prefers-color-scheme: light){footer{border-top:1px solid rgba(0,0,0,.1);color:#666}}@media (max-width: 640px){.container{padding:1rem}header h1{font-size:2rem}.video-form{padding:1.5rem}.button-group{flex-direction:column}.submit-btn{min-width:unset}}