:root{--bg-dark: #09090b;--bg-card: rgba(24, 24, 27, .6);--bg-card-hover: rgba(39, 39, 42, .8);--primary: #6366f1;--primary-hover: #4f46e5;--primary-glow: rgba(99, 102, 241, .4);--accent: #8b5cf6;--success: #10b981;--success-bg: rgba(16, 185, 129, .15);--error: #ef4444;--text-main: #f8fafc;--text-muted: #a1a1aa;--border: rgba(255, 255, 255, .08);--border-focus: rgba(255, 255, 255, .2);--shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, .2), 0 2px 4px -2px rgba(0, 0, 0, .2);--shadow-glow: 0 0 20px rgba(99, 102, 241, .15);--bg-subtle: rgba(255, 255, 255, .05);--bg-input: rgba(0, 0, 0, .3);--bg-preview: #000;--font-sans: "Inter", system-ui, sans-serif;--font-heading: "Outfit", system-ui, sans-serif;--radius-lg: 16px;--radius-md: 12px;--radius-sm: 8px;--header-text: linear-gradient(135deg, #fff, #cbd5e1);--transition-speed: .3s}[data-theme=light]{--bg-dark: #f8fafc;--bg-card: rgba(255, 255, 255, .8);--bg-card-hover: rgba(255, 255, 255, .95);--text-main: #0f172a;--text-muted: #64748b;--border: rgba(0, 0, 0, .08);--border-focus: rgba(0, 0, 0, .2);--shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, .05), 0 2px 4px -2px rgba(0, 0, 0, .05);--shadow-glow: 0 0 20px rgba(99, 102, 241, .05);--bg-subtle: rgba(0, 0, 0, .04);--bg-input: #ffffff;--bg-preview: #e2e8f0;--header-text: linear-gradient(135deg, #0f172a, #334155)}body{margin:0;padding:0;font-family:var(--font-sans);background:var(--bg-dark);color:var(--text-main);background-image:radial-gradient(circle at 15% 50%,rgba(99,102,241,.08),transparent 40%),radial-gradient(circle at 85% 30%,rgba(139,92,246,.08),transparent 40%);min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:background-color var(--transition-speed),color var(--transition-speed)}*{box-sizing:border-box}h1,h2,h3,h4,h5,h6{margin:0;font-family:var(--font-heading);font-weight:600;letter-spacing:-.02em}.app-container{max-width:1200px;margin:0 auto;padding:3rem 2rem;display:grid;grid-template-columns:320px 1fr;gap:2.5rem;min-height:100vh}@media(max-width:1024px){.app-container{grid-template-columns:280px 1fr;gap:1.5rem;padding:2rem}}@media(max-width:860px){.app-container{grid-template-columns:1fr;padding:1.5rem;gap:2rem}}@media(max-width:480px){.app-container{padding:1rem;gap:1.5rem}}.main-content{min-width:0}.header{grid-column:1/-1;display:flex;align-items:center;justify-content:center;margin-bottom:2rem}.header .header-content{display:flex;align-items:center;gap:1.5rem}@media(max-width:640px){.header .header-content{flex-direction:column;text-align:center;gap:1rem}}.header .header-content .logo{width:64px;height:64px;border-radius:20px;background:linear-gradient(135deg,var(--primary),var(--accent));display:flex;align-items:center;justify-content:center;box-shadow:0 10px 25px #6366f166;flex-shrink:0}@media(max-width:480px){.header .header-content .logo{width:48px;height:48px;border-radius:14px}.header .header-content .logo .logo-icon{width:32px;height:32px}}.header .header-content .logo .logo-icon{color:#fff}.header .header-content .title-area h1{font-size:clamp(2rem,8vw,3.5rem);font-weight:800;background:var(--header-text);background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent;line-height:1.1}.header .header-content .title-area p{color:var(--text-muted);font-size:clamp(.9rem,3vw,1.15rem);margin:.25rem 0 0;font-weight:400}.panel{background:var(--bg-card);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--border);border-radius:var(--radius-lg);padding:1.75rem;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:1.25rem;transition:border-color .3s ease,transform .3s ease,box-shadow .3s ease}.panel h3{font-size:1.25rem;display:flex;align-items:center;color:var(--text-main);border-bottom:1px solid var(--border);padding-bottom:1rem;margin-bottom:.5rem}.panel h3 .panel-icon{margin-right:.75rem;color:var(--primary)}.upload-zone{border:2px dashed rgba(99,102,241,.3);border-radius:var(--radius-lg);padding:4rem 2rem;text-align:center;transition:all .3s cubic-bezier(.4,0,.2,1);cursor:pointer;background:#6366f105;display:flex;flex-direction:column;align-items:center;justify-content:center}@media(max-width:640px){.upload-zone{padding:2.5rem 1.5rem}}.upload-zone.drag-active{border-color:var(--primary);background:#6366f114;transform:scale(1.01);box-shadow:0 0 30px #6366f133}.upload-zone.drag-active .icon{transform:scale(1.1) translateY(-5px);color:var(--text-main);filter:drop-shadow(0 0 10px rgba(99,102,241,.8))}.upload-zone:hover:not(.drag-active){border-color:#6366f199;background:#6366f10a}.upload-zone .icon{color:var(--primary);margin-bottom:1.5rem;transition:all .3s ease}@media(max-width:480px){.upload-zone .icon{width:40px!important;height:40px!important;margin-bottom:1rem}}.upload-zone h2{font-size:clamp(1.1rem,4vw,1.5rem);margin-bottom:.5rem;color:var(--text-main)}.upload-zone p{color:var(--text-muted);font-size:clamp(.85rem,2.5vw,.95rem);max-width:300px;margin:0 auto;line-height:1.5}.settings-group{gap:1.25rem}.settings-group .setting-item{display:flex;flex-direction:column;gap:.6rem}.settings-group label{font-size:.9rem;font-weight:500;color:var(--text-main);display:flex;align-items:center}@media(max-width:480px){.settings-group label{font-size:.85rem}}.settings-group label .label-icon{margin-right:.5rem;color:var(--text-muted)}.settings-group select,.settings-group input[type=number]{width:100%;padding:.75rem 1rem;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--bg-input);color:var(--text-main);font-family:inherit;font-size:.95rem;outline:none;transition:all .2s}.settings-group select:focus,.settings-group input[type=number]:focus{border-color:var(--primary);box-shadow:0 0 0 2px #6366f133}.settings-group select option,.settings-group input[type=number] option{background:var(--bg-dark);color:var(--text-main)}.settings-group select::placeholder,.settings-group input[type=number]::placeholder{color:var(--text-muted);opacity:.8}.settings-group input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:6px;background:var(--bg-subtle);border-radius:3px;outline:none;border:none;padding:0;margin-top:.5rem}.settings-group input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:18px;height:18px;border-radius:50%;background:var(--primary);cursor:pointer;box-shadow:0 0 10px #6366f180;transition:transform .1s,background .2s}.settings-group input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.15);background:#818cf8}.settings-group input[type=range]:disabled{opacity:.4}.settings-group input[type=range]:disabled::-webkit-slider-thumb{cursor:not-allowed}.queue-list{display:flex;flex-direction:column;gap:.75rem;max-height:600px;overflow-y:auto;padding-right:.5rem;background:transparent;border:none;box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none;padding:0}.queue-list h3{border:none;font-size:1.1rem;padding-bottom:.25rem;margin:0 0 .5rem .5rem}.queue-list::-webkit-scrollbar{width:6px}.queue-list::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:10px}.queue-list::-webkit-scrollbar-thumb:hover{background:#fff3}.queue-item{background:var(--bg-card);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--border);border-radius:var(--radius-md);padding:1rem;display:flex;align-items:center;gap:1.25rem;transition:transform .2s ease,background .2s ease;animation:slideIn .3s cubic-bezier(.16,1,.3,1) forwards}@media(max-width:640px){.queue-item{gap:.75rem;padding:.75rem}}@media(max-width:480px){.queue-item{flex-wrap:wrap;position:relative;padding-bottom:3.5rem}}.queue-item:hover{background:var(--bg-card-hover);transform:translateY(-2px);box-shadow:var(--shadow-sm)}.queue-item .preview{width:64px;height:64px;border-radius:var(--radius-sm);object-fit:cover;background:var(--bg-preview);box-shadow:0 4px 10px #0000004d;border:1px solid var(--border)}@media(max-width:480px){.queue-item .preview{width:48px;height:48px}}.queue-item .details{flex:1;display:flex;flex-direction:column;gap:.35rem;min-width:0}.queue-item .details .name{font-size:.95rem;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--text-main)}.queue-item .details .stats{font-size:.85rem;color:var(--text-muted);display:flex;flex-wrap:wrap;gap:.5rem;align-items:center}@media(max-width:480px){.queue-item .details .stats{gap:.35rem}}.queue-item .details .stats .reduction{color:var(--success);font-weight:600;background:var(--success-bg);padding:.1rem .4rem;border-radius:4px}.queue-item .details .stats .reduction.increase{color:var(--error);background:#ef44441a}.queue-item .details .stats .time{display:flex;align-items:center;gap:.25rem;background:var(--bg-subtle);padding:.1rem .4rem;border-radius:4px}.queue-item .status{font-size:.75rem;font-weight:600;padding:.35rem .65rem;border-radius:20px;background:var(--bg-subtle);letter-spacing:.05em;display:flex;align-items:center}@media(max-width:480px){.queue-item .status{position:absolute;bottom:.75rem;left:.75rem}}.queue-item .status.done{background:var(--success-bg);color:var(--success);border:1px solid rgba(16,185,129,.2)}.queue-item .status.processing{background:#6366f126;color:#818cf8;border:1px solid rgba(99,102,241,.2);animation:pulse 2s infinite}.queue-item .status.error{background:#ef444426;color:var(--error);border:1px solid rgba(239,68,68,.2)}.queue-item .download-btn{background:var(--bg-subtle);color:var(--text-main);border:1px solid var(--border);border-radius:var(--radius-sm);width:36px;height:36px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s}@media(max-width:480px){.queue-item .download-btn{position:absolute;bottom:.75rem;right:.75rem}}.queue-item .download-btn:hover{background:var(--primary);border-color:var(--primary);box-shadow:0 0 15px #6366f166;transform:scale(1.05)}.queue-item .download-btn:active{transform:scale(.95)}.primary-btn{background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;border:none;border-radius:var(--radius-md);padding:1rem;font-size:1rem;font-weight:600;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .3s ease;box-shadow:0 4px 15px #6366f14d;font-family:var(--font-sans)}.primary-btn:hover{box-shadow:0 6px 20px #6366f180;transform:translateY(-2px);filter:brightness(1.1)}.primary-btn:active{transform:translateY(0)}@keyframes slideIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%{opacity:1}50%{opacity:.6}to{opacity:1}}.theme-toggle{position:fixed;top:1.5rem;right:1.5rem;width:48px;height:48px;border-radius:50%;background:var(--bg-card);border:1px solid var(--border);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .3s ease;z-index:100;box-shadow:var(--shadow-sm);color:var(--text-main)}@media(max-width:640px){.theme-toggle{top:1rem;right:1rem;width:40px;height:40px}.theme-toggle .icon-container svg{width:18px;height:18px}}.theme-toggle:hover{transform:scale(1.1);border-color:var(--primary);box-shadow:var(--shadow-glow)}.theme-toggle .icon-container{display:flex;align-items:center;justify-content:center;transition:transform .5s cubic-bezier(.4,0,.2,1)}.theme-toggle .icon-container.dark{color:var(--accent)}.theme-toggle .icon-container.light{color:#f59e0b}.seo-footer{grid-column:1/-1;margin-top:4rem;padding:4rem 2rem;background-color:var(--bg-dark);border-top:1px solid var(--border);color:var(--text-muted);font-family:var(--font-sans);position:relative;z-index:10}.seo-footer .footer-container{max-width:1000px;margin:0 auto}.seo-footer .footer-container h2{color:var(--text-main);font-size:1.75rem;margin-bottom:1.5rem;font-family:var(--font-heading);text-align:center}.seo-footer .footer-container h3{color:var(--text-main);font-size:1.25rem;margin-bottom:1.25rem;font-family:var(--font-heading);text-align:center}.seo-footer .footer-container p{line-height:1.7;margin-bottom:1.5rem;font-size:.95rem;text-align:center}.seo-footer .footer-container .footer-grid{display:grid;grid-template-columns:1fr;gap:3rem;margin-bottom:3rem}.seo-footer .footer-container .footer-feature-list{list-style-type:none;padding-left:0;display:grid;grid-template-columns:repeat(2,1fr);gap:1.5rem}@media(max-width:640px){.seo-footer .footer-container .footer-feature-list{grid-template-columns:1fr}}.seo-footer .footer-container .footer-feature-list li{display:flex;gap:1rem;font-size:.9rem;line-height:1.5;background:var(--bg-card);padding:1.25rem;border-radius:var(--radius-md);border:1px solid var(--border);transition:transform .2s ease,border-color .2s ease}.seo-footer .footer-container .footer-feature-list li:hover{transform:translateY(-2px);border-color:var(--primary)}.seo-footer .footer-container .footer-feature-list li .feature-icon{color:var(--primary);flex-shrink:0;margin-top:2px}.seo-footer .footer-container .footer-feature-list li strong{color:var(--text-main);font-weight:600}.seo-footer .footer-container .footer-bottom{margin-top:3rem;padding-top:2rem;border-top:1px solid var(--border);text-align:center;font-size:.85rem;color:var(--text-muted);opacity:.8}.noscript-banner{background-color:var(--success-bg);border:1px solid var(--success);color:var(--text-main);padding:1rem;text-align:center;font-weight:600;margin-bottom:2rem;border-radius:var(--radius-md)}