.upload-preview-overlay{position:fixed;inset:0;z-index:1200;display:grid;place-items:center;padding:24px;background:rgba(15,23,42,.62);backdrop-filter:blur(4px);animation:uploadOverlayIn .18s ease-out}.upload-preview-card{width:min(640px,100%);max-height:min(760px,calc(100vh - 48px));overflow:auto;padding:30px;background:#fff;border:1px solid rgba(255,255,255,.7);border-radius:22px;box-shadow:0 30px 80px rgba(15,23,42,.3);animation:uploadCardIn .22s ease-out}.upload-preview-header{display:flex;align-items:center;justify-content:space-between;gap:20px}.upload-preview-heading{display:flex;align-items:center;gap:12px}.upload-preview-icon{position:relative;flex:0 0 40px;width:40px;height:40px;border-radius:12px;background:linear-gradient(145deg,#eaf4ff,#dbeafe)}.upload-preview-icon::before,.upload-preview-icon::after{content:"";position:absolute;left:11px;width:18px;height:4px;border:2px solid var(--primary);border-top:0;border-radius:0 0 3px 3px}.upload-preview-icon::before{top:11px}.upload-preview-icon::after{top:21px}.upload-preview-card h3{margin:0;color:#172033;font-size:24px;line-height:1.25;letter-spacing:-.025em}.upload-preview-close{display:grid;place-items:center;flex:0 0 36px;width:36px;height:36px;border:0;border-radius:10px;background:transparent;color:var(--gray-400);font:400 27px/1 Arial;cursor:pointer;transition:.18s ease}.upload-preview-close:hover{background:var(--gray-100);color:var(--gray-700)}.upload-preview-close:focus-visible{outline:3px solid rgba(0,123,255,.2);color:var(--primary)}.upload-preview-subtitle{margin:10px 0 20px 52px;color:var(--gray-500)!important;font-size:14px;line-height:1.4;overflow-wrap:anywhere}.upload-preview-quality{display:flex;align-items:flex-start;gap:10px;margin:0 0 22px;padding:12px 14px;border:1px solid #dce9f8;border-radius:12px;background:#f5f9fe}.upload-preview-quality>span{display:grid;place-items:center;flex:0 0 20px;width:20px;height:20px;margin-top:1px;border-radius:50%;background:#dbeafe;color:#1677d2;font-size:12px;font-weight:800}.upload-preview-quality p{margin:0;color:#4e6075;font-size:13px;line-height:1.55}.upload-preview-sample{overflow:auto;margin:16px 0 20px;border:1px solid var(--gray-200);border-radius:12px}.upload-preview-sample table{width:100%;border-collapse:collapse}.upload-preview-sample caption{padding:10px 12px;background:var(--gray-50);color:var(--gray-600);font-size:12px;font-weight:700;text-align:left}.upload-preview-sample th,.upload-preview-sample td{padding:8px 12px;border-top:1px solid var(--gray-200);text-align:left;white-space:nowrap;font-size:13px}.upload-preview-sample th{color:var(--gray-600);background:#fbfcfd}.upload-mapping{display:grid;gap:10px}.upload-mapping label{display:grid;grid-template-columns:minmax(150px,.9fr) minmax(240px,1.25fr);gap:22px;align-items:center;padding:6px 0}.upload-mapping-label{display:flex;align-items:center;justify-content:space-between;gap:8px;color:#273244;font-size:15px;font-weight:600}.upload-mapping-badge{padding:3px 7px;border-radius:999px;background:#edf6ff;color:#1570c9;font-size:10px;font-weight:700;letter-spacing:.02em}.upload-mapping-badge.optional{background:var(--gray-100);color:var(--gray-500)}.upload-mapping select{width:100%;min-width:0;height:44px;padding:0 40px 0 13px;border:1px solid #d5dbe3;border-radius:10px;background-color:#fff;color:#202938;font:500 14px/1.2 inherit;cursor:pointer;transition:border-color .16s,box-shadow .16s}.upload-mapping select:hover{border-color:#aab6c5}.upload-mapping select:focus{border-color:var(--primary);outline:0;box-shadow:0 0 0 3px rgba(0,123,255,.14)}.upload-preview-error{min-height:20px;margin:10px 0 0;color:#b42318!important;font-size:13px}.upload-preview-actions{display:flex;justify-content:flex-end;gap:10px;margin:16px -30px -30px;padding:18px 30px 22px;border-top:1px solid var(--gray-200);background:#fbfcfd;border-radius:0 0 22px 22px}.upload-preview-actions .btn{min-height:44px;padding:10px 20px;border-radius:11px;font-weight:650}.upload-preview-actions .btn-primary{box-shadow:0 7px 16px rgba(0,123,255,.2)}@keyframes uploadOverlayIn{from{opacity:0}to{opacity:1}}@keyframes uploadCardIn{from{opacity:0;transform:translateY(12px) scale(.985)}to{opacity:1;transform:none}}@media(max-width:600px){.upload-preview-overlay{align-items:end;padding:0}.upload-preview-card{width:100%;max-height:92vh;padding:22px 18px;border-radius:22px 22px 0 0}.upload-preview-subtitle{margin-left:0}.upload-mapping label{grid-template-columns:1fr;gap:7px}.upload-preview-actions{flex-direction:column-reverse;margin:14px -18px -22px;padding:16px 18px 20px;border-radius:0}.upload-preview-actions .btn{width:100%}}@media(prefers-reduced-motion:reduce){.upload-preview-overlay,.upload-preview-card{animation:none}}