*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--mono: ui-monospace, "SFMono-Regular", Menlo, Monaco, Consolas, monospace;--bg: #ffffff;--text: #111111;--muted: #666666;--border: #e0e0e0;--border-hover: #aaaaaa;--green: #16a34a;--green-light: #dcfce7;--amber: #b45309;--amber-light: #fef3c7;--red: #dc2626;--red-light: #fee2e2;--radius: 6px;--max-width: 760px}body{font-family:var(--font);font-size:14px;line-height:1.6;color:var(--text);background:var(--bg)}main{max-width:var(--max-width);margin:0 auto;padding:40px 24px 80px}h1{font-size:20px;font-weight:600;margin-bottom:24px}.section{margin-top:32px}.section-title{font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-bottom:12px}.drop-zone{border:1.5px dashed var(--border);border-radius:var(--radius);padding:40px 24px;text-align:center;cursor:pointer;transition:border-color .15s,background .15s;display:flex;flex-direction:column;align-items:center;gap:6px;outline:none}.drop-zone:hover,.drop-zone:focus-visible{border-color:var(--border-hover)}.drop-zone.drag-over{border-color:var(--green);background:var(--green-light)}.drop-zone.uploading{opacity:.6;cursor:default}.drop-label{font-size:14px;color:var(--text)}.drop-hint{font-size:13px;color:var(--muted)}.file-link{color:var(--text);text-decoration:underline;cursor:pointer}.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.upload-error{margin-top:8px;color:var(--red);font-size:13px}.stage-label{font-size:13px;color:var(--muted);margin-bottom:8px}.card-list{display:flex;flex-direction:column;gap:6px}.card{border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.card--error{border-color:var(--red)}.card--flagged{border-color:var(--amber)}.card-header{width:100%;display:flex;align-items:center;gap:8px;padding:10px 14px;background:none;border:none;text-align:left;cursor:default;font-family:var(--font);font-size:14px;color:var(--text)}.card--done .card-header{cursor:pointer}.card--done .card-header:hover{background:#f8f8f8}.card-label{font-weight:600;flex-shrink:0;min-width:28px}.card-type{font-weight:400;color:var(--muted);font-size:12px;margin-left:2px}.card-stem{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--muted);font-size:13px}.card-stage{flex-shrink:0;font-size:12px;color:var(--muted);font-style:italic}.card-answer{flex-shrink:0;font-size:13px}.answer-tf{color:var(--green);font-weight:600}.expand-icon{color:var(--muted);font-size:12px;flex-shrink:0}.badge{display:inline-block;padding:1px 7px;border-radius:10px;font-size:11px;font-weight:500;flex-shrink:0}.badge--amber{background:var(--amber-light);color:var(--amber)}.spinner{display:inline-block;width:14px;height:14px;border:2px solid var(--border);border-top-color:var(--text);border-radius:50%;animation:spin .7s linear infinite;flex-shrink:0}@keyframes spin{to{transform:rotate(360deg)}}.card-body{padding:12px 14px 14px;border-top:1px solid var(--border);display:flex;flex-direction:column;gap:10px}.card-full-stem{font-size:14px;line-height:1.5}.options-list{list-style:none;display:flex;flex-direction:column;gap:4px}.option{padding:5px 10px;border-radius:4px;font-size:13px;border:1px solid transparent}.option--correct{background:var(--green-light);border-color:var(--green);color:var(--green);font-weight:500}.reasoning{font-size:13px;color:var(--muted);line-height:1.5}.error-msg{color:var(--red);font-size:13px}.job-error{border:1px solid var(--red);border-radius:var(--radius);padding:12px 14px;display:flex;flex-direction:column;gap:8px}.job-error details summary{cursor:pointer;font-size:12px;color:var(--muted);-webkit-user-select:none;user-select:none}.raw-response{margin-top:8px;font-family:var(--mono);font-size:12px;white-space:pre-wrap;word-break:break-all;background:#f4f4f4;padding:10px;border-radius:4px;max-height:300px;overflow-y:auto}.history-list{list-style:none;display:flex;flex-direction:column;gap:2px}.history-item{width:100%;display:flex;align-items:center;gap:12px;padding:7px 10px;background:none;border:1px solid transparent;border-radius:var(--radius);cursor:pointer;font-family:var(--font);font-size:13px;color:var(--text);text-align:left}.history-item:hover{background:#f4f4f4}.history-item--active{border-color:var(--border);background:#f8f8f8}.history-time{color:var(--muted);flex-shrink:0;font-variant-numeric:tabular-nums}.history-state{flex:1;font-size:12px;color:var(--muted)}.history-state--error{color:var(--red)}.history-count{font-size:12px;color:var(--muted);flex-shrink:0}