:root{--primary:#4361ee;--primary-dark:#3a56d4;--secondary:#3f37c9;--accent:#4cc9f0;--success:#4ade80;--warning:#facc15;--danger:#f72585;--dark:#1e293b;--darker:#0f172a;--light:#f8fafc;--gray:#94a3b8;--card-bg:rgba(30, 41, 59, 0.8)}*{margin:0;padding:0;box-sizing:border-box;font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen,Ubuntu,Cantarell,sans-serif}body{background:linear-gradient(135deg,var(--darker),#1e3a8a);color:var(--light);min-height:100vh;padding:2rem 1rem;line-height:1.6}.container{max-width:1200px;margin:0 auto;overflow:hidden}header{padding:2rem;text-align:center;position:relative;overflow:hidden}header::before{content:'';position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(circle,rgb(67 97 238 / .1) 0%,transparent 70%);z-index:-1}h1{font-size:2.5rem;margin-bottom:.5rem;background:linear-gradient(to right,var(--accent),var(--primary));-webkit-background-clip:text;background-clip:text;color:#fff0;font-weight:800;letter-spacing:-.5px}.subtitle{color:var(--gray);font-size:1.1rem;max-width:600px;margin:0 auto}.main-content{padding:1rem;display:grid;grid-template-columns:1fr;gap:1rem}@media (min-width:992px){.main-content{grid-template-columns:1fr 1fr}}.card{background:var(--card-bg);border-radius:16px;padding:1.5rem;box-shadow:0 10px 25px rgb(0 0 0 / .3);border:1px solid rgb(255 255 255 / .05)}.card-title{font-size:1.3rem;margin-bottom:1.5rem;color:var(--accent);display:flex;align-items:center;gap:.5rem}.card-title svg{width:24px;height:24px}.input-group{margin-bottom:1.5rem}label{display:block;margin-bottom:.5rem;font-weight:500;color:var(--gray);font-size:.9rem}input,select{width:100%;padding:12px 16px;border:none;background:rgb(30 41 59 / .7);border-radius:12px;color:#fff;font-size:1rem;border:1px solid rgb(255 255 255 / .1);transition:all 0.3s ease}input:focus,select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgb(67 97 238 / .3)}.button-group{display:flex;gap:1rem;margin-top:1rem}button{flex:1;padding:14px;border:none;border-radius:12px;font-weight:600;font-size:1rem;cursor:pointer;transition:all 0.3s ease;display:flex;align-items:center;justify-content:center;gap:8px}#downloadBtn{background:linear-gradient(to right,var(--primary),var(--primary-dark));color:#fff}#downloadBtn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 7px 20px rgb(67 97 238 / .4)}#downloadBtn:disabled{background:#334155;cursor:not-allowed;transform:none;box-shadow:none;opacity:.7}#cancelBtn{background:rgb(30 41 59 / .7);color:var(--danger);border:1px solid rgb(247 37 133 / .3)}#cancelBtn:hover{background:rgb(247 37 133 / .15)}.progress-section{background:rgb(30 41 59 / .5);border-radius:16px;padding:1.5rem}.progress-header{display:flex;justify-content:space-between;margin-bottom:1.5rem}.progress-title{font-size:1.2rem;font-weight:600}.progress-value{font-size:1.3rem;font-weight:700;background:linear-gradient(to right,var(--accent),var(--primary));-webkit-background-clip:text;background-clip:text;color:#fff0}.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem;margin-bottom:1.5rem}.stat-card{background:rgb(15 23 42 / .6);padding:1.2rem;border-radius:14px;text-align:center;border:1px solid rgb(255 255 255 / .05)}.stat-value{font-size:1.8rem;font-weight:800;margin-bottom:.3rem;color:var(--accent)}.stat-label{font-size:.9rem;color:var(--gray)}.progress-container{height:16px;background:rgb(255 255 255 / .1);border-radius:8px;overflow:hidden;margin-bottom:.5rem;position:relative}.progress-bar{height:100%;background:linear-gradient(to right,var(--primary),var(--success));border-radius:8px;width:0%;transition:width 0.3s ease;position:relative;overflow:hidden}.progress-bar::after{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(90deg,transparent,rgb(255 255 255 / .2),transparent);animation:progress-shine 2s infinite}@keyframes progress-shine{0%{transform:translateX(-100%)}100%{transform:translateX(100%)}}.progress-labels{display:flex;justify-content:space-between;font-size:.9rem;color:var(--gray)}.workers-container{display:flex;gap:8px;margin-top:1rem;flex-wrap:wrap}.worker-card{background:rgb(15 23 42 / .6);border-radius:12px;padding:.5rem;font-size:.8rem;display:flex;align-items:center;gap:8px;border:1px solid rgb(76 201 240 / .3)}.worker-status{width:10px;height:10px;border-radius:50%;background:var(--success)}.worker-status.idle{background:var(--gray)}.worker-status.active{background:var(--success);animation:pulse 1.5s infinite}@keyframes pulse{0%{opacity:1}50%{opacity:.5}100%{opacity:1}}.status{padding:.5rem;margin-top:20px;background:rgb(15 23 42 / .6);border-radius:16px;min-height:100px;font-family:'Fira Code',monospace;white-space:pre-wrap;overflow-y:auto;max-height:120px;font-size:.9rem;border:1px solid rgb(255 255 255 / .05)}.status-line{display:flex;gap:10px}.status-time{color:var(--accent);flex-shrink:0}.status-message{flex-grow:1;word-break:break-word}.info-box{background:rgb(76 201 240 / .15);border-left:4px solid var(--accent);padding:1rem;border-radius:0 12px 12px 0;margin-top:1.5rem;font-size:.9rem}.warning-box{background:rgb(247 37 133 / .15);border-left:4px solid var(--danger);padding:1rem;border-radius:0 12px 12px 0;margin-top:1.5rem;font-size:.9rem}.hidden{display:none}footer{text-align:center;padding:1.5rem;color:var(--gray);font-size:.9rem}.segment-progress-container{margin-top:1.5rem}.segment-summary{display:flex;flex-direction:column;gap:.5rem}.segment-bar{height:16px;background:rgb(255 255 255 / .1);border-radius:8px;overflow:hidden}.segment-progress-bar{height:100%;background:linear-gradient(to right,var(--accent),var(--primary));width:0%;transition:width 0.3s ease}.segment-stats{display:flex;justify-content:space-between;font-size:.9rem;color:var(--gray)}.segment-batches{margin-top:.5rem}.batch-container{display:flex;gap:4px;flex-wrap:wrap}.batch-dot{width:16px;height:16px;border-radius:50%;background:rgb(255 255 255 / .1);position:relative;cursor:pointer}.batch-dot.completed{background:var(--success)}.batch-dot.partial{background:linear-gradient(135deg,var(--success) 50%,rgb(255 255 255 / .1) 50%)}.batch-dot.failed{background:var(--danger)}.batch-tooltip{position:absolute;bottom:125%;left:50%;transform:translateX(-50%);background:var(--darker);color:#fff;padding:5px 10px;border-radius:4px;font-size:.8rem;white-space:nowrap;opacity:0;pointer-events:none;transition:opacity 0.2s;z-index:10;border:1px solid var(--primary)}.batch-dot:hover .batch-tooltip{opacity:1}.conversion-status{margin-top:1rem;padding:.75rem;background:rgb(30 41 59 / .6);border-radius:12px;text-align:center;border:1px solid rgb(76 201 240 / .3);font-size:.9rem}.conversion-status .label{color:var(--accent);font-weight:600}.conversion-status .value{font-weight:700;margin-top:.25rem;font-size:1.1rem}.conversion-progress-container{height:10px;background:rgb(255 255 255 / .1);border-radius:5px;overflow:hidden;margin-top:.5rem}.conversion-progress-bar{height:100%;background:linear-gradient(to right,var(--accent),var(--primary));width:0%;transition:width 0.3s ease}