.excel-main{min-width:0;max-width:1160px;margin-inline:auto}
.excel-tool{min-width:0;overflow-wrap:anywhere;color:#243b4d}
.excel-tool [hidden]{display:none!important}
.excel-tool h1{font-size:27px;line-height:1.5;margin:8px 0 12px;color:#1d3349;text-wrap:pretty;text-align:left}
.excel-tool h2{font-size:1.16rem;line-height:1.6;margin:0 0 14px;display:flex;align-items:center;gap:10px}
.excel-tool h3{font-size:1rem;line-height:1.7;margin:24px 0 8px}
.excel-tool p{line-height:1.8;margin:8px 0}
.excel-tool .lead{font-size:15px;color:#526573;margin-bottom:10px}
.excel-tool .intro-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.excel-tool .eyebrow{font-size:12px;color:#526f84;letter-spacing:.04em}
.excel-tool .privacy-badge{font-size:12px;color:#436979}
.excel-tool .privacy-badge span{font-weight:700;color:#23727f}
.excel-tool .card{padding:22px;margin:18px 0;border:1px solid #d6e6ee;border-radius:12px;background:#fff;box-shadow:0 2px 8px #17395408;min-width:0}
.excel-tool .step-number{font-size:12px;display:inline-grid;place-items:center;background:#e7f3fa;border:1px solid #cce2ed;border-radius:50%;width:26px;height:26px;flex:none;color:#245c76}
.excel-tool button{position:static;min-height:44px;padding:10px 18px;border:1px solid #287eaa;border-radius:7px;background:#287eaa;color:#fff;cursor:pointer;font:600 14px/1.5 sans-serif;max-width:100%;transition:background-color .18s,box-shadow .18s,transform .18s}
.excel-tool button.secondary{background:#fff;color:#245c76;border-color:#b8cdd8}
.excel-tool button.quiet{background:transparent;color:#35677f;border-color:transparent;padding:6px 10px;font-size:12px;min-height:36px;text-decoration:underline;text-underline-offset:3px}
.excel-tool button:disabled{opacity:.48;cursor:not-allowed;transition:none;transform:none;box-shadow:none}
.excel-tool :is(button,input,textarea,summary,a):focus-visible{outline:3px solid #1565c0;outline-offset:3px}
.excel-tool .muted{font-size:12px;color:#526573;font-weight:400}
.excel-tool fieldset{border:0;padding:0;margin:0;min-width:0}
.excel-tool legend{font-size:14px;font-weight:600;margin-bottom:8px}
.excel-tool label{font-size:14px;line-height:1.7}
.excel-tool input[type=checkbox],.excel-tool input[type=radio]{width:18px;height:18px;accent-color:#287eaa;vertical-align:middle;flex:none}
.excel-tool input[type=text],.excel-tool textarea{box-sizing:border-box;width:100%;min-width:0;max-width:100%;padding:10px 12px;border:1px solid #b8cdd8;border-radius:7px;background:#fff;color:#243946;font:16px/1.65 sans-serif}
.excel-tool input:disabled{background:#f3f6f8;color:#637683}
.excel-tool textarea{display:block;resize:vertical;min-height:130px;height:240px;tab-size:4;white-space:pre-wrap}
.excel-tool textarea[readonly]{background:#f8fbfd;height:170px;font-size:14px}
.excel-tool .drop-zone{border:1px dashed #9ebecf;border-radius:9px;padding:18px;background:#f8fcff;transition:background .15s}
.excel-tool .drop-zone.dragging{background:#e2f2fb;border-color:#287eaa}
.excel-tool .file-label{display:block;font-weight:600;color:#245c76;margin-bottom:10px}
.excel-tool input[type=file]{display:block;max-width:100%;width:100%;font-size:14px;line-height:1.8}
.excel-tool input[type=file]::file-selector-button{border:1px solid #b8cdd8;background:white;border-radius:5px;padding:8px 12px;margin-right:10px;color:#245c76;cursor:pointer;min-height:42px}
.excel-tool .file-meta{display:flex;justify-content:space-between;align-items:center;gap:10px;min-width:0}
.excel-tool #file-info{font-size:13px;overflow-wrap:anywhere;min-width:0}
.excel-tool #clear{flex:0 0 auto;white-space:nowrap}
.excel-tool .range-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(160px,.8fr);align-items:end;gap:18px;margin-top:12px}
.excel-tool .range-modes label{display:inline-flex;align-items:center;gap:5px;margin:0 16px 7px 0}
.excel-tool .range-input>label{display:block;font-weight:600;margin-bottom:6px}
.excel-tool #range-status{margin-top:8px;min-height:21px}
.excel-tool .limit-note{margin-top:4px}
.excel-tool .format-options{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.excel-tool .format-option{display:flex;align-items:flex-start;gap:9px;border:1px solid #d6e6ee;border-radius:8px;padding:14px;cursor:pointer;min-width:0}
.excel-tool .format-option:has(input:checked){background:#f0f8fc;border-color:#77b0cb}
.excel-tool .format-option input{margin-top:4px}
.excel-tool .format-option strong{font-size:14px;display:block;margin-bottom:4px}
.excel-tool .format-option>span>span{display:block;font-size:12px;color:#526573;line-height:1.8}
.excel-tool .format-option small{font-size:10px;font-weight:500;color:#276e89;border:1px solid #c7dfe9;border-radius:4px;padding:1px 5px;margin-left:5px;display:inline-block}
.excel-tool .actions{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:14px 0 0}
.excel-tool .run-actions{border-top:1px solid #e0e9ef;padding-top:16px}
.excel-tool #convert{min-height:52px;padding:12px 34px;font-size:16px;font-weight:700;background:#176f99;border-color:#176f99;box-shadow:0 3px 8px #176f9926}
.excel-tool #convert:disabled{box-shadow:none}
.excel-tool button.copy-success{background:#e8f5ee;color:#1d6043;border-color:#5a9878;box-shadow:0 0 0 1px #5a987826}
@media(hover:hover) and (pointer:fine){.excel-tool button:enabled:hover{background:#226f97;box-shadow:0 2px 6px #1739541f;transform:translateY(-1px)}.excel-tool button.secondary:enabled:hover{background:#f0f7fb}.excel-tool button.quiet:enabled:hover{background:#edf5fa;box-shadow:none;transform:none}.excel-tool #convert:enabled:hover{background:#125c82;box-shadow:0 6px 14px #125c8238;transform:translateY(-2px)}.excel-tool button.copy-success:enabled:hover{background:#deefe5}}
.excel-tool details{border:1px solid #d6e6ee;border-radius:8px;padding:12px;margin-top:12px;background:#fff}
.excel-tool summary{cursor:pointer;font-size:13px;font-weight:600;line-height:1.8}
.excel-tool .checks{display:flex;flex-wrap:wrap;gap:8px 22px;margin:10px 0}
.excel-tool .checks label{font-size:13px;display:flex;gap:6px;align-items:center;min-height:34px}
.excel-tool .settings{padding:10px 12px;background:#fbfdff}
.excel-tool .notice{background:#fff8e6;border:1px solid #e8d6ab;border-radius:8px;padding:12px;font-size:13px}
.excel-tool .error{color:#a32323;font-size:13px}
.excel-tool #error:empty{display:none}
.excel-tool [aria-invalid=true]{border-color:#b42318}
.excel-tool #progress-area{margin-top:16px}
.excel-tool #progress-status{display:block;font-size:13px}
.excel-tool progress{width:100%;height:12px;accent-color:#287eaa;margin-top:8px}
.excel-tool .result-card{background:#f7fbfe;scroll-margin-top:85px;border-color:#b6d6e7}
.excel-tool .result-file{font-size:13px;font-weight:600;overflow-wrap:anywhere}
.excel-tool .result-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin:14px 0 6px}
.excel-tool .result-stats>div{border:1px solid #dce8ee;border-radius:7px;padding:10px;background:white;min-width:0}
.excel-tool dt{font-size:11px;color:#526573;margin-bottom:5px}
.excel-tool dd{font-size:15px;font-weight:600;margin:0;overflow-wrap:anywhere}
.excel-tool #result-note{font-size:14px}
.excel-tool .missing-note{font-size:12px;color:#526573}
.excel-tool .warnings{background:#fffdf6;border-color:#e9ddc0}
.excel-tool .warnings ul{margin:12px 0;padding-left:20px;font-size:13px;line-height:1.8;max-height:240px;overflow-y:auto}
.excel-tool .warnings li+li{margin-top:8px}
.excel-tool .output-label{display:block;font-weight:600;margin:16px 0 8px}
.excel-tool #edit-state{display:block;margin-top:2px}
.excel-tool .operation-status{font-size:13px;color:#245c76;min-height:18px}
.excel-tool .guide-card{background:#f1f8fc;border:1px solid #cce2ed;border-radius:10px;padding:14px 18px;margin:16px 0}
.excel-tool .guide-top{display:flex;justify-content:space-between;align-items:center;color:#55758b;font-size:12px}
.excel-tool .guide-card h2{font-size:15px;margin:0 0 4px}
.excel-tool .guide-card p{font-size:13px;margin:4px 0;line-height:1.75}
.excel-tool .guide-card .guide-main{font-weight:600}
.excel-tool .guide-actions{margin-top:8px;justify-content:flex-end}
.excel-tool .guide-actions button{padding:7px 16px;min-height:36px;font-size:12px}
.excel-tool .reading p{font-size:14px;color:#475e6e;line-height:1.9}
.excel-tool .card.tool-explanation{margin-top:52px}
.excel-tool .faq summary{font-size:14px}
.excel-tool .sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
@media(max-width:600px){.excel-tool h1{font-size:22px}.excel-tool .card{padding:15px;margin:14px 0}.excel-tool .format-options,.excel-tool .range-row{grid-template-columns:minmax(0,1fr)}.excel-tool .range-row{gap:8px}.excel-tool .format-option{padding:12px}.excel-tool .actions>button{flex:1 1 135px}.excel-tool .guide-actions>button{flex:0 1 auto}.excel-tool .guide-card{padding:12px}.excel-tool .drop-zone{padding:14px}.excel-tool .result-stats{grid-template-columns:1fr 1fr}.excel-tool textarea{height:230px}.excel-tool h2{font-size:1.05rem}.excel-tool .intro-heading{gap:4px}.excel-tool .checks{gap:4px}.excel-tool .run-actions>.muted{width:100%}}
@media(prefers-reduced-motion:reduce){.excel-tool *{scroll-behavior:auto!important;transition:none!important;animation:none!important}.excel-tool button{transform:none!important}}

.excel-tool select{font:inherit;max-width:100%;padding:10px;border:1px solid #b8cdd8;border-radius:6px;background:#fff}.excel-tool .limit-mode{padding:12px;background:#f7fafc;border-radius:8px;margin:10px 0}.excel-tool .limit-mode:has(input:checked){background:#fff6e6;border:1px solid #dcc08a}.excel-tool .limit-mode label{font-size:13px;font-weight:600;display:flex;gap:7px;align-items:center}.excel-tool .section-heading,.excel-tool .preview-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-top:24px}.excel-tool .section-heading h2,.excel-tool .preview-heading h3{margin:0}.excel-tool .sheet-list{max-height:190px;overflow:auto;border:1px solid #d6e6ee;border-radius:7px;margin-top:7px}.excel-tool .sheet-row{display:flex;gap:8px;align-items:center;padding:3px 9px;border-bottom:1px solid #edf2f5;min-width:0}.excel-tool .sheet-row:has(button[aria-current=true]){background:#eaf5fb}.excel-tool .sheet-row label{padding:8px 0}.excel-tool .sheet-row button{flex:1;min-width:0;text-align:left;white-space:normal;overflow-wrap:anywhere;text-decoration:none}.excel-tool .sheet-badge{font-size:11px;color:#6b5b33}.excel-tool .range-row{grid-template-columns:minmax(0,1fr) auto;gap:12px}.excel-tool .column-pager{display:flex;align-items:center;justify-content:flex-end}.excel-tool .preview-scroll{overflow:auto;max-width:100%;max-height:440px;border:1px solid #d6e6ee;border-radius:6px;margin-top:8px}.excel-tool #preview{border-collapse:collapse;font-size:12px;table-layout:fixed;min-width:100%;width:max-content}.excel-tool #preview th,.excel-tool #preview td{padding:8px;border:1px solid #e0e9ef;min-width:110px;max-width:180px;width:140px;white-space:pre-wrap;overflow-wrap:anywhere;vertical-align:top}.excel-tool #preview th{position:sticky;top:0;background:#f0f7fb;z-index:1}.excel-tool #preview th:first-child{min-width:42px;width:42px}.excel-tool #preview th label{display:flex;align-items:center;gap:6px;min-height:32px}.excel-tool .blank{color:#93a3af;font-size:10px}.excel-tool .not-selected{background:#f4f5f6;color:#82909b}.excel-tool .warning-list{padding-left:20px;font-size:12px;color:#765b21;line-height:1.8}.excel-tool .format-field{margin-top:24px}.excel-tool #data-settings{border-top:1px solid #d6e6ee;margin-top:20px}.excel-tool #result{height:340px;font:13px/1.7 ui-monospace,monospace;white-space:pre;overflow:auto}.excel-tool #status{font-size:13px}.excel-tool #copy-ai,.excel-tool #copy-plain{min-width:180px}.excel-tool #copy-status{min-height:24px;font-size:13px;color:#236849}@media(max-width:600px){.excel-tool .card{padding:14px}.excel-tool h1{font-size:23px}.excel-tool .range-row{grid-template-columns:1fr}.excel-tool .range-row button{justify-self:start}.excel-tool .sheet-list{max-height:160px}.excel-tool .format-options{grid-template-columns:1fr}.excel-tool #result{height:310px}.excel-tool #convert{width:100%;padding-inline:12px}.excel-tool #copy-ai,.excel-tool #copy-plain{width:100%}.excel-tool .file-meta{align-items:start}.excel-tool .column-pager{justify-content:space-between}}

/* Limited UI review fixes: only the first explanation card gets this spacing. */
.excel-tool .card.tool-explanation{margin-top:52px}
.excel-tool .limit-mode .limit-details{margin-top:6px;padding:7px 10px;background:transparent}
.excel-tool .limit-details summary{font-size:12px}
.excel-tool .manual-copy{padding:14px;background:#f5faff;border:1px solid #b8cdd8;border-radius:8px;margin-top:12px}
.excel-tool #manual-copy-text{height:180px;min-height:130px;font:13px/1.7 ui-monospace,monospace;white-space:pre-wrap}