:root{--green: #1a7f44;--green-bg: #e7f5ec;--amber: #9a6700;--amber-bg: #fdf3e1;--red: #b42318;--red-bg: #fdecea;--blue: #1456b8;--blue-bg: #e8f0fd;--ink: #1c2430;--muted: #687385;--line: #e2e6ec;--bg: #f5f6f8;--card: #ffffff;--radius: 10px}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;font-size:14px;line-height:1.45}h2,h3{margin:0 0 .4rem}code{background:#eef0f3;padding:1px 5px;border-radius:4px;font-size:.9em}.app-header{background:#11243f;color:#fff;padding:14px 0}.app-header-inner{max-width:1180px;margin:0 auto;padding:0 20px;display:flex;align-items:baseline;gap:16px;flex-wrap:wrap}.app-title{color:#fff;text-decoration:none;font-size:19px;font-weight:700}.app-subtitle{color:#9fb3cc;font-size:13px}.app-main{max-width:1180px;margin:0 auto;padding:24px 20px 60px}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius)}.input-card{overflow:hidden}.divider{border:none;border-top:1px solid var(--line);margin:28px 0}.muted{color:var(--muted)}.strong{font-weight:700}.num{text-align:right;font-variant-numeric:tabular-nums}.tabs{display:flex;border-bottom:1px solid var(--line);background:#fafbfc}.tab{flex:0 0 auto;padding:13px 22px;border:none;background:none;cursor:pointer;font-size:14px;color:var(--muted);border-bottom:2px solid transparent}.tab-active{color:var(--ink);font-weight:600;border-bottom-color:var(--blue);background:#fff}.tab-panel{padding:20px}.btn{border:none;border-radius:8px;padding:9px 16px;font-size:14px;cursor:pointer;font-weight:600}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--blue);color:#fff}.btn-outline{background:#fff;border:1px solid var(--blue);color:var(--blue)}.btn-chosen{background:var(--green);color:#fff}.btn-ghost{background:#eef1f5;color:var(--ink)}.link-btn{color:var(--blue);text-decoration:none;font-weight:600;white-space:nowrap}.link-btn:hover{text-decoration:underline}.field-label{display:block;margin-bottom:6px;color:var(--muted)}.name-textarea{width:100%;padding:10px;border:1px solid var(--line);border-radius:8px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px;resize:vertical}.paste-actions{display:flex;align-items:center;justify-content:space-between;margin-top:12px}.file-drop{display:block;border:2px dashed #c4ccd6;border-radius:10px;padding:22px;text-align:center;cursor:pointer;background:#fafbfc}.file-drop input{display:block;margin:0 auto 8px}.file-drop-label{color:var(--muted)}.alert{padding:10px 14px;border-radius:8px;margin:14px 0}.alert-error{background:var(--red-bg);color:var(--red);border:1px solid #f3c2bd}.alert-warn{background:var(--amber-bg);color:var(--amber);border:1px solid #f1dcb0}.loading-row,.loading-block{display:flex;align-items:center;gap:10px;color:var(--muted);margin:14px 0}.loading-block{padding:22px;justify-content:center}.spinner{width:16px;height:16px;border:2px solid #cfd6df;border-top-color:var(--blue);border-radius:50%;display:inline-block;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.pdf-upload>*+*{margin-top:14px}.exam-info{background:var(--blue-bg);border:1px solid #c9dcf7;border-radius:8px;padding:12px 14px}.exam-info-title{font-weight:700;font-size:15px}.exam-info-grid{display:flex;flex-wrap:wrap;gap:6px 18px;margin:6px 0;color:#33425b}.exam-info-count{color:var(--green);font-weight:600}.preview-wrap{border:1px solid var(--line);border-radius:8px;overflow:hidden}.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:8px}.data-table{width:100%;border-collapse:collapse;font-size:13px}.data-table th,.data-table td{padding:8px 11px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}.data-table thead th{background:#f3f5f8;color:#41506a;font-weight:600;position:sticky;top:0}.data-table tbody tr:nth-child(2n){background:#fafbfc}.band-badge{display:inline-block;min-width:22px;text-align:center;padding:1px 7px;background:#eef1f5;border-radius:6px;font-weight:700;font-size:12px}.results-summary{margin-bottom:18px}.exam-header{margin-bottom:14px}.exam-header-meta{display:flex;flex-wrap:wrap;gap:4px 16px;color:var(--muted);font-size:13px}.metric-bar{display:flex;flex-wrap:wrap;gap:12px}.metric{flex:1 1 120px;border:1px solid var(--line);border-radius:10px;padding:12px 16px;background:#fff}.metric-value{font-size:24px;font-weight:700}.metric-label{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.03em}.metric-green{background:var(--green-bg)}.metric-green .metric-value{color:var(--green)}.metric-amber{background:var(--amber-bg)}.metric-amber .metric-value{color:var(--amber)}.metric-red{background:var(--red-bg)}.metric-red .metric-value{color:var(--red)}.metric-blue{background:var(--blue-bg)}.metric-blue .metric-value{color:var(--blue)}.result-section{margin-top:26px}.section-title{display:flex;align-items:center;gap:10px;font-size:16px}.section-green{color:var(--green)}.section-amber{color:var(--amber)}.section-red{color:var(--red)}.count-pill{background:#eef1f5;color:var(--ink);border-radius:12px;padding:0 9px;font-size:12px;font-weight:700}.amb-card{border:1px solid var(--line);border-radius:10px;margin-top:10px;overflow:hidden;background:#fff}.amb-card.amb-resolved{border-color:var(--green)}.amb-card.amb-none{border-color:var(--line);opacity:.85}.amb-head{width:100%;display:flex;align-items:center;gap:10px;padding:11px 14px;background:none;border:none;cursor:pointer;text-align:left;font-size:14px}.amb-caret{color:var(--muted)}.amb-name{font-weight:700}.amb-status{color:var(--muted);margin-left:auto;font-size:13px}.amb-resolved .amb-status{color:var(--green);font-weight:600}.amb-body{padding:4px 14px 14px;border-top:1px solid var(--line)}.amb-options{list-style:none;margin:0;padding:0}.amb-option{display:flex;align-items:center;gap:14px;padding:10px 0;border-bottom:1px solid var(--line)}.amb-option-chosen{background:var(--green-bg);border-radius:8px;padding:10px}.amb-option-main{flex:1 1 auto;min-width:0}.amb-option-title{font-weight:600}.amb-option-sub{color:var(--muted);font-size:13px}.amb-option-comp{display:flex;flex-direction:column;gap:1px;text-align:right;font-size:12px;color:#45506a}.amb-actions{display:flex;align-items:center;gap:14px;margin-top:12px}.export-row{margin-top:26px}.history-page{max-width:100%}.back-btn{margin-bottom:16px}.history-header{margin-bottom:14px}.history-table .group-row th{text-align:center;border-bottom:1px solid var(--line);font-size:11px;text-transform:uppercase;letter-spacing:.04em}.grp-pos{background:#eef1f5}.grp-earn{background:var(--green-bg)}.grp-ben{background:var(--blue-bg)}.grp-comp{background:var(--amber-bg)}.totals-row td{background:#eef1f5;font-weight:700;border-top:2px solid #c4ccd6}