.video-to-audio{min-height:100vh;padding:2rem;color:#f8fafc;background:linear-gradient(135deg,rgba(15,23,42,.9),rgba(30,41,59,.9))}.container{max-width:1200px;margin:0 auto;background:rgba(15,23,42,.6);backdrop-filter:blur(10px);border-radius:1.5rem;padding:2.5rem;border:1px solid rgba(124,58,237,.1);box-shadow:0 4px 6px -1px rgba(0,0,0,.1)}.header{text-align:center;margin-bottom:3rem}.header h1{font-size:3rem;font-weight:700;background:linear-gradient(135deg,#7c3aed,#3b82f6);-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:1rem;animation:fadeIn .8s ease-out}.description{color:#94a3b8;font-size:1.2rem;max-width:600px;margin:0 auto;line-height:1.6}.upload-container{margin:2rem 0;background:rgba(15,23,42,.4);border-radius:1.5rem;padding:1.5rem;box-shadow:0 4px 20px rgba(0,0,0,.1)}.upload-area{background:rgba(30,41,59,.6);border-radius:1rem;padding:3rem 2rem;text-align:center;border:2px dashed rgba(124,58,237,.3);transition:all .3s ease;cursor:pointer;position:relative;overflow:hidden}.upload-area:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(45deg,rgba(124,58,237,.05),rgba(59,130,246,.05));z-index:0}.upload-area:hover{border-color:#7c3aed;background:rgba(124,58,237,.08)}.upload-content{position:relative;z-index:1}.upload-icon{font-size:2.5rem;color:#7c3aed;background:rgba(124,58,237,.1);width:64px;height:64px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 1.5rem}.upload-area p{color:#94a3b8;margin-bottom:1.5rem;font-size:1.1rem}.upload-area .file-types{font-size:.9rem;color:#64748b;margin-bottom:1.5rem}.file-input{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.select-button{background:linear-gradient(135deg,#7c3aed,#6d28d9);color:#fff;padding:.875rem 2rem;border-radius:.75rem;border:none;font-weight:600;cursor:pointer;transition:all .2s 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rgba(124,58,237,.2)}.info-grid{display:grid;gap:1rem}.info-item{display:flex;justify-content:space-between;align-items:center;padding:.75rem;background:rgba(15,23,42,.3);border-radius:.5rem;transition:all .2s ease}.info-item:hover{background:rgba(15,23,42,.5)}.info-item span:first-child{color:#94a3b8;font-weight:500;font-size:.9rem}.info-item span:last-child{color:#f8fafc;font-weight:600;font-size:.9rem;text-align:right;word-break:break-word}.conversion-options{margin-top:2rem;background:rgba(30,41,59,.4);padding:1.5rem;border-radius:1rem;border:1px solid rgba(124,58,237,.2)}.conversion-options h3{color:#f8fafc;font-size:1.25rem;margin-bottom:1.5rem;padding-bottom:.75rem;border-bottom:1px solid rgba(124,58,237,.2)}.options-grid{display:grid;gap:2rem}.option-group{margin-bottom:0}.option-group label{display:block;color:#94a3b8;font-weight:500;margin-bottom:1rem;font-size:1rem}.format-buttons{display:grid;grid-template-columns:repeat(3,1fr);gap:.75rem;margin-bottom:.5rem}.format-button{background:rgba(15,23,42,.4);color:#94a3b8;padding:.875rem 1rem;border-radius:.5rem;border:1px solid rgba(124,58,237,.2);cursor:pointer;transition:all .2s ease;text-align:center;font-weight:500;font-size:.9rem}.format-button:hover:not(:disabled){background:rgba(124,58,237,.1);border-color:rgba(124,58,237,.4);color:#f8fafc}.format-button.active{background:linear-gradient(135deg,#7c3aed,#6d28d9);color:#fff;border-color:#7c3aed}.format-button:disabled{opacity:.5;cursor:not-allowed}.format-note{color:#64748b;font-size:.8rem;margin-top:.5rem;font-style:italic}.quality-buttons{display:grid;grid-template-columns:repeat(3,1fr);gap:.75rem}.quality-button{background:rgba(15,23,42,.4);color:#94a3b8;padding:.875rem 1rem;border-radius:.5rem;border:1px solid rgba(124,58,237,.2);cursor:pointer;transition:all 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ease}.clear-button:hover:not(:disabled){background:rgba(71,85,105,.8)}.spinner{width:20px;height:20px;border-radius:50%;border:3px solid hsla(0,0%,100%,.3);border-top-color:#fff;animation:spin 1s linear infinite}.progress-container{margin-top:1rem;background:rgba(30,41,59,.4);padding:1.5rem;border-radius:1rem;border:1px solid rgba(124,58,237,.2)}.progress-bar{width:100%;height:8px;background:rgba(124,58,237,.2);border-radius:4px;overflow:hidden;margin-bottom:1rem}.progress-fill{height:100%;background:linear-gradient(135deg,#7c3aed,#3b82f6);transition:width .3s ease}.progress-text{text-align:center;color:#94a3b8;font-size:.9rem;font-weight:500}.conversion-stats{margin-top:2rem;background:rgba(30,41,59,.4);padding:1.5rem;border-radius:1rem;border:1px solid rgba(124,58,237,.2)}.conversion-stats h3{color:#f8fafc;font-size:1.25rem;margin-bottom:1rem;padding-bottom:.75rem;border-bottom:1px solid rgba(124,58,237,.2)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem}.stat-item{background:rgba(15,23,42,.4);padding:1rem;border-radius:.75rem;text-align:center;border:1px solid rgba(124,58,237,.1)}.stat-item span:first-child{display:block;color:#94a3b8;margin-bottom:.5rem;font-size:.9rem;font-weight:500}.stat-item span:last-child{font-size:1.2rem;font-weight:600;color:#7c3aed}.audio-preview{margin-top:2rem;background:rgba(30,41,59,.4);padding:1.5rem;border-radius:1rem;border:1px solid rgba(124,58,237,.2);text-align:center}.audio-preview h3{color:#f8fafc;font-size:1.25rem;margin-bottom:1rem;padding-bottom:.75rem;border-bottom:1px solid rgba(124,58,237,.2)}.audio-player{width:100%;max-width:400px;margin:0 auto;border-radius:.5rem;background:rgba(15,23,42,.6)}.download-button{width:100%;background:linear-gradient(135deg,#7c3aed,#6d28d9);color:#fff;padding:1rem;border-radius:.75rem;border:none;font-weight:600;cursor:pointer;transition:all .2s 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fadeIn{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}@keyframes spin{to{transform:rotate(1turn)}}@media (max-width:768px){.video-to-audio{padding:1rem}.container{padding:1.5rem}.header h1{font-size:2rem}.video-preview-container{gap:1rem}.features,.video-preview-container{grid-template-columns:1fr}.upload-area{padding:2rem 1rem}.format-buttons,.quality-buttons{grid-template-columns:1fr;gap:.5rem}.stats-grid{grid-template-columns:repeat(2,1fr)}.options-grid{gap:1.5rem}}@media (max-width:480px){.stats-grid{grid-template-columns:1fr}.format-buttons,.quality-buttons{gap:.5rem}.format-button,.quality-button{padding:.75rem .5rem;font-size:.8rem}}.upload-area.dragging{border-color:#7c3aed;background:rgba(124,58,237,.15);transform:scale(1.02)}.upload-area.dragging .upload-icon{transform:scale(1.1)}