:root{font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.5;font-weight:400;color:#111827;background-color:#eef1f4;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}*{box-sizing:border-box}body{margin:0;background:#eef1f4}.page{min-height:100vh;display:flex;flex-direction:column;align-items:center;padding:32px 16px 48px;gap:16px}.app-card{width:100%;max-width:640px;background:#fff;border-radius:12px;padding:24px;border:1px solid #e5e7eb;box-shadow:0 20px 40px #0f172a1f;display:flex;flex-direction:column;gap:18px}.header{display:flex;flex-direction:column;gap:8px;text-align:left}.pill{align-self:flex-start;background:#e0ecff;color:#1d4ed8;padding:4px 10px;border-radius:999px;font-weight:600;font-size:.75rem;letter-spacing:.02em}h1{margin:0;font-size:2rem;text-align:left}h2{margin:0;font-size:1.05rem}p{margin:0;color:#374151}.subtitle{font-size:.95rem;color:#4b5563;text-align:left}.trust-banner{background:#e6f4ff;color:#1f2937;padding:10px 12px 10px 16px;border-radius:10px;display:flex;align-items:center;justify-content:flex-start;gap:8px;font-size:.85rem;font-weight:600}.trust-icon{font-size:1rem}.dropzone-card{display:flex;flex-direction:column;gap:12px}#drop-zone{border:2px dashed #cbd5e1;border-radius:12px;padding:28px 20px;min-height:200px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:.75rem;text-align:center;background:#f8fafc;cursor:pointer;transition:border-color .2s,background .2s,transform .2s}#drop-zone.is-busy{opacity:.6;pointer-events:none}#drop-zone.is-compact{padding:18px 20px;min-height:140px}.dropzone-inner{display:flex;flex-direction:column;align-items:center;gap:.75rem}.drop-title{font-weight:600;font-size:1.05rem;color:#111827}.drop-separator{font-size:.85rem;color:#9ca3af}#file-input{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}.hint{font-size:.8rem;color:#6b7280}.inline-message{font-size:.85rem}.inline-message.error{color:#b91c1c}.file-section{display:flex;flex-direction:column;gap:12px}.file-list-container{margin-top:2.5rem}.card-header{display:flex;justify-content:space-between;align-items:center}.file-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}.file-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 12px;border-radius:10px;border:1px solid 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16px;font-size:.9rem;font-weight:600;font-family:inherit;cursor:pointer;transition:transform .15s,box-shadow .15s,opacity .2s;background:#e5e7eb;color:#111827}.btn:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 8px 16px #0f172a1f}.btn:disabled{opacity:.6;cursor:not-allowed;box-shadow:none}.btn.primary{background:#2563eb;color:#fff}.btn.ghost{background:#f1f5f9;color:#1f2937}.btn.browse-btn{background:#fff;color:#2563eb;border:1px solid #cbd5e1;font-size:.875rem;padding:8px 16px;min-width:140px}.link-button{background:none;border:none;padding:0;color:#64748b;font-size:.8rem;text-decoration:underline;cursor:pointer;font-family:inherit;margin-top:.5rem}.link-button:hover{color:#3b82f6}.clear-link{background:none;border:none;padding:0;font-size:.875rem;color:#64748b;cursor:pointer;font-family:inherit;align-self:baseline}.clear-link:hover{text-decoration:underline}.btn.small{padding:6px 10px;font-size:.8rem}.icon-btn{width:32px;height:32px;border-radius:.5rem;border:1px solid transparent;background:#fff;color:#1f2937;font-size:1rem;font-weight:700;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:background .2s,color .2s,transform .15s}.icon-btn:hover:not(:disabled){background:#f1f5f9;transform:translateY(-1px)}.icon-btn:disabled{opacity:.5;cursor:not-allowed}.icon-btn.danger:hover:not(:disabled){color:#ef4444}.merge-btn{width:100%;height:48px;font-size:1rem;font-weight:700}@keyframes pulse-border{0%{border-color:#3b82f6;box-shadow:0 0 #3b82f666}70%{border-color:#2563eb;box-shadow:0 0 0 6px #3b82f600}to{border-color:#3b82f6;box-shadow:0 0 #3b82f600}}#drop-zone.drag-over{background-color:#eff6ff;transform:scale(1.01);animation:pulse-border 1.5s infinite;border:2px solid #3b82f6}@keyframes slide-up-fade{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.file-item-enter{animation:slide-up-fade .3s cubic-bezier(.2,.8,.2,1) 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