:root{--paper: #ECEFE7;--surface: #F8F9F4;--ink: #1C2620;--ink-soft: #4A564C;--rule: #C9D0C1;--rule-strong: #9FAB94;--green: #2F6B4F;--green-deep: #1F4C38;--amber: #A9702B;--red: #A23B2E;--display: "Space Grotesk", system-ui, sans-serif;--mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--paper);color:var(--ink);font-family:var(--mono);font-size:15px;line-height:1.55;background-image:linear-gradient(var(--rule) 1px,transparent 1px);background-size:100% 34px;background-attachment:local}.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}.page{max-width:760px;margin:0 auto;padding:56px 24px 80px}.masthead{border-bottom:2px solid var(--ink);padding-bottom:20px;margin-bottom:40px}.masthead-mark{font-family:var(--display);font-weight:700;font-size:34px;letter-spacing:-.01em;color:var(--ink)}.masthead-tag{margin:10px 0 0;max-width:52ch;color:var(--ink-soft);font-size:14.5px}.workspace{display:flex;flex-direction:column;gap:32px}.dropzone{border:1.5px dashed var(--rule-strong);background:var(--surface);transition:border-color .12s ease,background .12s ease}.dropzone.is-dragging{border-color:var(--green);background:#eff4ec}.dropzone-label{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;padding:48px 24px;cursor:pointer;text-align:center}.dropzone-title{font-family:var(--display);font-weight:600;font-size:20px;color:var(--ink)}.dropzone-sub{font-size:13px;color:var(--ink-soft)}.status-line{color:var(--ink-soft);font-size:13.5px;margin:-12px 0 0}.panel{background:var(--surface);border:1px solid var(--rule)}.panel-head{display:flex;align-items:baseline;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--rule)}.panel-head h2{font-family:var(--display);font-weight:600;font-size:16px;margin:0;color:var(--ink)}.link-btn{background:none;border:none;padding:0;color:var(--green);font-family:var(--mono);font-size:12.5px;cursor:pointer;text-decoration:underline;text-underline-offset:3px}.link-btn:hover{color:var(--green-deep)}.file-table{width:100%;border-collapse:collapse;font-size:13px}.file-table th{text-align:left;font-weight:600;color:var(--ink-soft);padding:10px 20px;border-bottom:1px solid var(--rule);font-size:11.5px}.file-table td{padding:10px 20px;border-bottom:1px solid var(--rule);vertical-align:middle}.file-table tr:last-child td{border-bottom:none}.cell-name{max-width:260px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.row-error{color:var(--red)}.badge{display:inline-block;border:1px solid var(--rule-strong);padding:2px 8px;font-size:11px;color:var(--ink-soft)}.badge-error{border-color:var(--red);color:var(--red)}.result-summary{padding:18px 20px 4px;font-size:13.5px;color:var(--ink)}.group-list{list-style:none;margin:12px 0 0;padding:0;display:flex;flex-direction:column;gap:10px}.group-list li{display:flex;flex-direction:column;gap:2px;border-left:3px solid var(--green);padding-left:10px}.group-name{font-family:var(--display);font-weight:600;font-size:13.5px}.group-detail{font-size:12px;color:var(--ink-soft)}.controls-row{display:flex;flex-wrap:wrap;gap:24px;align-items:center;padding:18px 20px}.checkbox-row{display:flex;align-items:center;gap:8px;font-size:13px;cursor:pointer}.checkbox-row input{accent-color:var(--green);width:15px;height:15px}.filename-row{display:flex;align-items:center;gap:8px;font-size:13px}.filename-row input{font-family:var(--mono);font-size:13px;border:1px solid var(--rule-strong);background:var(--paper);color:var(--ink);padding:6px 8px;width:200px}.filename-row input:focus,.dropzone-label:focus-visible,.primary-btn:focus-visible,.link-btn:focus-visible{outline:2px solid var(--green);outline-offset:2px}.primary-btn{display:block;width:calc(100% - 40px);margin:4px 20px 20px;background:var(--green);color:var(--surface);border:none;font-family:var(--display);font-weight:600;font-size:14.5px;padding:14px 20px;cursor:pointer;transition:background .12s ease}.primary-btn:hover{background:var(--green-deep)}.foot-note{margin-top:48px;font-size:12px;color:var(--ink-soft);border-top:1px solid var(--rule);padding-top:16px}@media (max-width: 600px){.page{padding:32px 16px 60px}.masthead-mark{font-size:27px}.filename-row input{width:140px}.cell-name{max-width:120px}}@media (prefers-reduced-motion: reduce){*{transition:none!important}}