*{box-sizing:border-box;margin:0;padding:0}
body{background:#f0f4f8;color:#1a2332;font-family:Tahoma,Arial,'Segoe UI',sans-serif;min-height:100vh;line-height:1.6}
.app{max-width:920px;margin:30px auto;padding:15px}

.hero{text-align:center;margin-bottom:28px;padding:20px 0}
.brand{font-size:28px;font-weight:900;color:#1a56db;letter-spacing:1px}
.brand .ver{display:inline-block;background:#1a56db;color:#fff;font-size:13px;padding:2px 10px;border-radius:20px;vertical-align:middle;margin-right:6px;font-weight:700}
h1{font-size:30px;margin:12px 0 6px;color:#111827}
.sub{color:#6b7280;font-size:15px;max-width:600px;margin:0 auto}

.card{background:#fff;border-radius:20px;padding:32px;box-shadow:0 4px 24px rgba(0,0,0,.08);border:1px solid #e5e7eb}

.drop{min-height:200px;border:2.5px dashed #cbd5e1;border-radius:16px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;cursor:pointer;transition:all .2s;background:#fafbfc}
.drop.over,.drop:hover{border-color:#1a56db;background:#f0f5ff}
.drop input{display:none}
.dropIcon{font-size:52px}
.drop h2{font-size:20px;color:#1f2937}
.drop p{color:#6b7280;font-size:14px}
.drop small{color:#1a56db;font-size:13px;max-width:90%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.fileInfo{background:#f8fafc;border:1px solid #e5e7eb;border-radius:12px;padding:14px 18px;margin:20px 0;font-size:14px;color:#374151}

h3{font-size:15px;color:#374151;margin:18px 0 10px;padding-bottom:6px;border-bottom:1px solid #f3f4f6}

.modes{display:grid;gap:12px;margin-bottom:8px}
.mode{display:flex;gap:12px;border:1.5px solid #e5e7eb;border-radius:13px;padding:15px;cursor:pointer;transition:all .2s}
.mode:hover{border-color:#93c5fd;background:#f8fafc}
.mode.selected{border-color:#1a56db;background:#f0f5ff}
.mode input{margin-top:4px}
.mode span{display:block;color:#6b7280;font-size:13px;margin-top:5px}

.grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:5px}
.grid label{display:flex;flex-direction:column;gap:6px;font-size:13px;font-weight:700;color:#4b5563}
.grid select{padding:10px 12px;border:1.5px solid #d1d5db;border-radius:10px;font-size:14px;background:#fff;color:#1f2937;cursor:pointer;transition:border-color .2s}
.grid select:focus{border-color:#1a56db;outline:none}

.checks{display:flex;flex-wrap:wrap;gap:10px 22px;margin:10px 0 5px}
.checks label{display:flex;align-items:center;gap:6px;font-size:13px;color:#4b5563;cursor:pointer;transition:color .2s}
.checks label:hover{color:#1a56db}
.checks input[type=checkbox]{width:16px;height:16px;accent-color:#1a56db;cursor:pointer}

#start{width:100%;border:0;background:linear-gradient(135deg,#1a56db,#2563eb);color:#fff;padding:16px;border-radius:14px;font-size:18px;font-weight:800;cursor:pointer;margin-top:20px;transition:all .2s;letter-spacing:.5px}
#start:hover{background:linear-gradient(135deg,#1e40af,#1d4ed8);transform:translateY(-1px);box-shadow:0 6px 20px rgba(26,86,219,.3)}
#start:active{transform:translateY(0)}

.topline{display:flex;justify-content:space-between;align-items:center;margin:15px 0 10px}
.topline strong{font-size:16px;color:#1f2937}
.topline b{font-size:22px;color:#1a56db;font-weight:900}

.progress{height:12px;background:#e5e7eb;border-radius:30px;overflow:hidden}
.progress i{display:block;height:100%;width:0;background:linear-gradient(90deg,#1a56db,#60a5fa);border-radius:30px;transition:width .3s ease}

.stage{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:16px 0 8px}
.stage-item{background:#f8fafc;border-radius:10px;padding:10px 12px;text-align:center;border:1px solid #f3f4f6}
.stage-item span{display:block;font-size:11px;color:#9ca3af;text-transform:uppercase;letter-spacing:.5px;margin-bottom:2px}
.stage-item b{font-size:18px;color:#1f2937;font-weight:800}

.detail-bar{display:flex;justify-content:space-between;align-items:center;margin:10px 0;font-size:12px;min-height:22px}
.phase{color:#6b7280;font-weight:600}
.quality{color:#059669;font-weight:600}

pre#log{background:#1f2937;color:#d1d5db;padding:14px;border-radius:12px;font-size:12px;max-height:180px;overflow-y:auto;margin:12px 0;font-family:'Courier New',monospace;direction:ltr;text-align:left;line-height:1.5;white-space:pre-wrap;word-break:break-all}

#result{text-align:center;margin:20px 0 5px}
.download{display:inline-block;background:linear-gradient(135deg,#059669,#10b981);color:#fff;padding:16px 40px;border-radius:14px;font-size:18px;font-weight:800;border:0;cursor:pointer;transition:all .2s;text-decoration:none}
.download:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(5,150,105,.3)}
.success-msg{margin-top:12px;color:#059669;font-weight:700;font-size:15px}
.error-msg{margin-top:12px;color:#dc2626;font-weight:700;font-size:15px}

footer{text-align:center;margin-top:28px;color:#9ca3af;font-size:13px;line-height:1.8}
footer .warn{color:#d97706;font-size:12px;margin-top:4px}

@media(max-width:640px){
  .app{padding:8px}
  .card{padding:18px}
  h1{font-size:22px}
  .brand{font-size:22px}
  .grid{grid-template-columns:1fr}
  .stage{grid-template-columns:repeat(3,1fr);gap:6px}
  .stage-item b{font-size:15px}
  .checks{gap:8px 14px}
}