@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap";:root{--bg-dark:#0f1115;--bg-card:#ffffff08;--border-card:#ffffff14;--primary-glow:#6366f166;--accent-color:#6366f1;--accent-hover:#4f46e5;--text-main:#f8fafc;--text-muted:#94a3b8}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-dark);color:var(--text-main);justify-content:center;align-items:center;min-height:100vh;font-family:Inter,sans-serif;display:flex;position:relative;overflow-x:hidden}body:before,body:after{content:"";filter:blur(100px);z-index:-1;opacity:.5;border-radius:50%;width:50vw;height:50vw;animation:10s ease-in-out infinite alternate pulse;position:absolute}body:before{background:radial-gradient(circle,#6366f133 0%,#0000 70%);top:-20%;left:-10%}body:after{background:radial-gradient(circle,#ec489926 0%,#0000 70%);animation-delay:-5s;bottom:-20%;right:-10%}@keyframes pulse{0%{transform:scale(1)translate(0)}to{transform:scale(1.1)translate(20px,20px)}}.app-container{z-index:1;width:100%;max-width:600px;padding:2rem}.header{text-align:center;margin-bottom:2.5rem}.header h1{background:linear-gradient(135deg,#fff 0%,#a5b4fc 100%);-webkit-text-fill-color:transparent;letter-spacing:-.02em;-webkit-background-clip:text;margin-bottom:.5rem;font-size:2.5rem;font-weight:700}.header p{color:var(--text-muted);font-size:1.1rem}.converter-card{background:var(--bg-card);-webkit-backdrop-filter:blur(16px);border:1px solid var(--border-card);border-radius:24px;padding:2rem;transition:transform .3s,box-shadow .3s;box-shadow:0 20px 40px #0006,inset 0 1px #ffffff1a}.converter-card:hover{transform:translateY(-2px);box-shadow:0 25px 50px #00000080,inset 0 1px #ffffff1a}.drop-zone{text-align:center;cursor:pointer;background:#0003;border:2px dashed #ffffff26;border-radius:16px;flex-direction:column;justify-content:center;align-items:center;gap:1rem;padding:3rem 2rem;transition:all .3s;display:flex}.drop-zone:hover,.drop-zone.active{border-color:var(--accent-color);background:#6366f10d}.drop-zone.active{transform:scale(.98)}.icon-container{width:64px;height:64px;color:var(--accent-color);background:#ffffff0d;border-radius:50%;justify-content:center;align-items:center;margin-bottom:.5rem;transition:all .3s;display:flex}.drop-zone:hover .icon-container{background:#6366f11a;transform:scale(1.05)}.drop-zone p{color:var(--text-main);font-size:1.1rem;font-weight:500}.drop-zone span{color:var(--text-muted);font-size:.9rem}.file-info{background:#0000004d;border:1px solid #ffffff0d;border-radius:12px;justify-content:space-between;align-items:center;margin-bottom:1.5rem;padding:1rem 1.25rem;display:flex}.file-details{align-items:center;gap:1rem;display:flex;overflow:hidden}.file-icon{color:var(--accent-color)}.file-name{white-space:nowrap;text-overflow:ellipsis;max-width:200px;font-weight:500;overflow:hidden}.remove-btn{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:4px;justify-content:center;align-items:center;padding:.25rem;transition:color .2s;display:flex}.remove-btn:hover{color:#ef4444;background:#ef44441a}.progress-container{margin-bottom:1.5rem}.progress-bar-bg{background:#ffffff1a;border-radius:4px;width:100%;height:8px;margin-bottom:.5rem;overflow:hidden}.progress-bar-fill{background:linear-gradient(90deg, var(--accent-color), #a5b4fc);height:100%;box-shadow:0 0 10px var(--primary-glow);border-radius:4px;transition:width .3s}.progress-text{color:var(--text-muted);justify-content:space-between;font-size:.85rem;display:flex}.btn{cursor:pointer;border:none;border-radius:12px;justify-content:center;align-items:center;gap:.5rem;width:100%;padding:1rem;font-family:inherit;font-size:1rem;font-weight:600;transition:all .3s;display:flex}.btn-primary{background:var(--accent-color);color:#fff;box-shadow:0 4px 14px 0 var(--primary-glow)}.btn-primary:hover:not(:disabled){background:var(--accent-hover);transform:translateY(-1px);box-shadow:0 6px 20px #6366f199}.btn-primary:disabled{color:var(--text-muted);cursor:not-allowed;box-shadow:none;background:#ffffff1a}.btn-success{color:#fff;background:#10b981;box-shadow:0 4px 14px #10b9814d}.btn-success:hover{background:#059669;transform:translateY(-1px);box-shadow:0 6px 20px #10b98180}.spinner{animation:1s linear infinite spin}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.status-message{text-align:center;color:var(--text-muted);justify-content:center;align-items:center;gap:.5rem;margin-top:1rem;font-size:.9rem;display:flex}.files-list-container{flex-direction:column;gap:1.5rem;display:flex}.controls-bar{border-bottom:1px solid var(--border-card);justify-content:space-between;align-items:center;padding-bottom:1rem;display:flex}.quality-selector{color:var(--text-muted);align-items:center;gap:.5rem;font-size:.9rem;display:flex}.quality-selector select{border:1px solid var(--border-card);color:var(--text-main);background:#0003;border-radius:8px;outline:none;padding:.4rem .8rem;font-family:inherit}.quality-selector select option{color:#f8fafc;background-color:#0f172a}.add-more-btn{border:1px dashed var(--border-card);color:var(--text-main);cursor:pointer;background:#ffffff0d;border-radius:8px;padding:.4rem 1rem;font-family:inherit;transition:all .2s}.add-more-btn:hover{border-color:var(--text-muted);background:#ffffff1a}.files-list{flex-direction:column;gap:1rem;max-height:50vh;padding-right:.5rem;display:flex;overflow-y:auto}.files-list::-webkit-scrollbar{width:6px}.files-list::-webkit-scrollbar-thumb{background:var(--border-card);border-radius:3px}.file-item-card{border:1px solid var(--border-card);background:#0003;border-radius:12px;flex-direction:column;gap:1rem;padding:1rem;display:flex}.file-item-header{justify-content:space-between;align-items:center;display:flex}.file-size{color:var(--text-muted);font-size:.8rem}.waveform-container{background:#0003;border-radius:8px;align-items:center;gap:1rem;padding:.5rem 1rem;display:flex}.play-btn{background:var(--accent-color);color:#fff;cursor:pointer;border:none;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;transition:transform .2s;display:flex}.play-btn:hover{transform:scale(1.1)}.waveform{flex:1;height:40px}.metadata-editor{gap:.5rem;display:flex}.metadata-editor input{border:1px solid var(--border-card);color:var(--text-main);background:#0003;border-radius:6px;flex:1;min-width:0;padding:.5rem .8rem;font-family:inherit;font-size:.85rem}.metadata-editor input:focus{border-color:var(--accent-color);outline:none}.action-bar{gap:1rem;padding-top:1rem;display:flex}.btn-secondary{border:1px solid var(--border-card);color:var(--text-main);background:0 0}.btn-secondary:hover{background:#ffffff0d}.btn-sm{border-radius:8px;padding:.5rem 1rem;font-size:.9rem}.success-action{background:#10b9811a;border:1px solid #10b98133;border-radius:8px;align-items:center;gap:.5rem;padding:.75rem 1rem;display:flex}.error-message{color:#ef4444;text-align:center;background:#ef44441a;border-radius:6px;padding:.5rem;font-size:.85rem}