*{margin:0;padding:0;box-sizing:border-box}:root{--primary:#00ff88;--primary-dark:#00cc6a;--dark:#0a0a0a;--dark-card:#111111;--gray-900:#111827;--gray-800:#1f2937;--gray-700:#374151;--gray-600:#4b5563;--gray-500:#6b7280;--gray-400:#9ca3af;--gray-300:#d1d5db;--gray-200:#e5e7eb;--white:#ffffff;--success:#10b981;--error:#ef4444}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:var(--dark);color:var(--white);line-height:1.6;overflow-x:hidden}.navbar{position:fixed;top:0;width:100%;background:rgba(10,10,10,.95);backdrop-filter:blur(20px);border-bottom:1px solid rgba(255,255,255,.1);z-index:1000;padding:1rem 0}.nav-container{max-width:1400px;margin:0 auto;justify-content:space-between;padding:0 2rem}.logo,.nav-container{display:flex;align-items:center}.logo{gap:.5rem;font-size:1.5rem;font-weight:800;color:var(--white);text-decoration:none}.logo-icon{width:32px;height:32px;background:linear-gradient(135deg,var(--primary),#6366f1);border-radius:8px;justify-content:center;font-size:1rem}.logo-icon,.nav-links{display:flex;align-items:center}.nav-links{gap:2rem;list-style:none}.nav-links a{text-decoration:none;color:var(--gray-300);font-weight:500;transition:all .3s ease}.nav-links a:hover{color:var(--primary)}.nav-buttons{display:flex;gap:1rem;align-items:center}.btn-secondary{color:var(--gray-300);text-decoration:none;font-weight:600;padding:.5rem 1rem;transition:all .3s ease}.btn-secondary:hover{color:var(--primary)}.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:var(--dark);padding:.75rem 1.5rem;border-radius:8px;text-decoration:none;font-weight:700;transition:all .3s ease}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 25px rgba(0,255,136,.3)}.converter-main{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:8rem 2rem 4rem;background:var(--dark)}.converter-container{max-width:800px;width:100%;margin:0 auto}.upload-zone{border:2px dashed rgba(255,255,255,.2);border-radius:20px;padding:4rem 3rem;text-align:center;background:rgba(255,255,255,.02);transition:all .3s ease;position:relative;cursor:pointer}.upload-zone:hover{border-color:rgba(255,255,255,.4);background:rgba(255,255,255,.05)}.upload-zone.dragover{border-color:var(--primary);background:rgba(0,255,136,.1);transform:scale(1.02)}.upload-icon{width:60px;height:60px;margin:0 auto 2rem;background:rgba(255,255,255,.1);border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.5rem;color:var(--white)}.upload-text{font-size:1.25rem;font-weight:600;margin-bottom:.5rem;color:var(--white)}.upload-hint{color:var(--gray-400);margin-bottom:2rem;font-size:1rem}.upload-divider{color:var(--gray-500);font-size:1rem;margin:2rem 0;position:relative;display:flex;align-items:center;justify-content:center}.upload-divider:after,.upload-divider:before{content:"";flex:1;height:1px;background:rgba(255,255,255,.2);margin:0 1rem}.record-button{background:rgba(255,255,255,.1);color:var(--white);padding:.875rem 1.5rem;border-radius:12px;font-weight:600;font-size:1rem;border:1px solid rgba(255,255,255,.2);cursor:pointer;transition:all .3s ease;backdrop-filter:blur(10px);display:inline-flex;align-items:center;gap:.5rem}.record-button:hover{background:rgba(255,255,255,.2);transform:translateY(-2px)}.file-input-wrapper{top:0;left:0}.file-input,.file-input-wrapper{position:absolute;width:100%;height:100%;cursor:pointer}.file-input{opacity:0}.file-selected{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:16px;padding:1.5rem;margin:2rem 0;display:none;border-left:4px solid var(--primary)}.file-selected.show{display:block}.file-name{font-weight:700;color:var(--white);margin-bottom:.5rem;font-size:1.1rem}.file-size{color:var(--gray-400);font-size:.9rem}.convert-button{width:100%;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:var(--dark);padding:1.25rem;border-radius:16px;font-weight:700;font-size:1.1rem;border:none;cursor:pointer;transition:all .3s ease;margin-top:2rem;display:none}.convert-button.show{display:block}.convert-button:hover:not(:disabled){transform:translateY(-3px);box-shadow:0 15px 35px rgba(0,255,136,.4)}.convert-button:disabled{background:var(--gray-600);cursor:not-allowed;transform:none}.progress-container{margin:2rem 0;display:none}.progress-container.show{display:block}.progress-bar{width:100%;height:12px;background:rgba(255,255,255,.1);border-radius:6px;overflow:hidden;margin-bottom:1rem}.progress-fill{height:100%;background:linear-gradient(135deg,var(--primary),var(--success));width:0;transition:width .3s ease;border-radius:6px}.progress-text{color:var(--gray-300)}.progress-text,.status-message{text-align:center;font-weight:600}.status-message{padding:1rem;border-radius:12px;margin:1rem 0;display:none}.status-message.show{display:block}.status-message.success{background:rgba(16,185,129,.1);color:var(--success);border:1px solid rgba(16,185,129,.3)}.status-message.error{background:rgba(239,68,68,.1);color:var(--error);border:1px solid rgba(239,68,68,.3)}.status-message.loading{background:rgba(0,255,136,.1);color:var(--primary);border:1px solid rgba(0,255,136,.3)}.download-section{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);color:var(--white);padding:2rem;border-radius:16px;text-align:center;margin-top:2rem;display:none}.download-section.show{display:block}.download-title{font-size:1.3rem;font-weight:700;margin-bottom:.5rem;color:var(--primary)}.download-subtitle{color:var(--gray-300);margin-bottom:1.5rem}.download-button{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:var(--dark);padding:1rem 2rem;border-radius:12px;text-decoration:none;font-weight:700;display:inline-flex;align-items:center;gap:.5rem;transition:all .3s ease}.download-button:hover{transform:translateY(-2px);box-shadow:0 10px 25px rgba(0,255,136,.3)}@media 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