:root{--bg-color:transparent;--card-bg:#ffffffbf;--text-primary:#0f172a;--text-secondary:#475569;--accent:#3b82f6;--accent-hover:#2563eb;--success:#10b981;--border-color:#0000001a}*{box-sizing:border-box;margin:0;padding:0}body{color:var(--text-primary);background-color:#0000;justify-content:center;align-items:center;min-height:100vh;font-family:Inter,sans-serif;display:flex}.container{width:100%;max-width:600px;padding:2rem}header{text-align:center;margin-bottom:3rem}header h1{background:linear-gradient(135deg,#60a5fa,#3b82f6);-webkit-text-fill-color:transparent;-webkit-background-clip:text;margin-bottom:.5rem;font-size:2.5rem;font-weight:600}header p{color:var(--text-secondary);font-size:1.1rem}.card{background:var(--card-bg);border:1px solid var(--border-color);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-radius:16px;margin-bottom:1.5rem;padding:2rem;transition:all .3s;box-shadow:0 20px 40px #0003}.card.hidden{display:none}.drop-zone{border:2px dashed var(--border-color);text-align:center;cursor:pointer;border-radius:12px;padding:3rem 2rem;transition:all .3s}.drop-zone:hover,.drop-zone.dragover{border-color:var(--accent);background:#3b82f60d}.drop-zone .icon{color:var(--accent);margin-bottom:1rem}.drop-zone p{color:var(--text-secondary);font-size:1.2rem}.highlight{color:var(--accent);font-weight:600}.hidden{display:none!important}.file-info{justify-content:space-between;margin-bottom:1rem;font-weight:500;display:flex}.progress-bar-container{background:#ffffff1a;border-radius:4px;height:8px;margin-bottom:1rem;overflow:hidden}.progress-bar{background:linear-gradient(90deg, var(--accent), #60a5fa);width:0%;height:100%;transition:width .3s}#progress-text{text-align:right;color:var(--text-secondary);font-size:.9rem}.link-box{gap:.5rem;margin-top:1.5rem;display:flex}.link-box input{border:1px solid var(--border-color);color:var(--text-primary);background:#ffffff80;border-radius:8px;outline:none;flex:1;padding:.75rem 1rem;font-family:inherit;font-size:1rem}.link-box button{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:8px;padding:.75rem 1.5rem;font-weight:600;transition:background .3s}.link-box button:hover{background:var(--accent-hover)}#download-btn{background:var(--success);color:#fff;cursor:pointer;border:none;border-radius:8px;width:100%;margin-top:1.5rem;padding:1rem;font-size:1.1rem;font-weight:600;transition:background .3s}#download-btn:hover{background:#059669}h2{margin-bottom:1rem;font-size:1.5rem}