*{box-sizing:border-box}html{font-family:var(--font-body);background:var(--color-canvas);color:var(--color-ink);font-size:16px}body{margin:0}button,input,select{font:inherit}button,a,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a{color:inherit;text-decoration:none}button{border:0}button:focus-visible,a:focus-visible,summary:focus-visible,select:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--color-focus);outline-offset:4px}button:disabled{background:var(--color-disabled);color:var(--color-disabled-text);cursor:not-allowed}p,h1,h2,h3{margin:0}.icon{width:22px;height:22px;flex:none;vertical-align:middle}.header{height:88px;max-width:1240px;margin:auto;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--color-line)}.brand{display:flex;align-items:center}.brand img{width:260px;height:auto;display:block}.hub{font-size:14px;font-weight:700;min-height:44px;display:flex;align-items:center;gap:7px}.main{width:min(1080px,calc(100% - 80px));margin:0 auto;min-height:785px}.hero{text-align:center;padding:46px 0 34px}.eyebrow{display:inline-flex;align-items:center;gap:12px;font-family:var(--font-mono);font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--color-primary);padding:6px 12px;border-radius:99px;background:var(--color-mint-soft)}.eyebrow span{font-size:16px}.hero h1{font-size:44px;letter-spacing:-.05em;line-height:1.38;margin:16px 0 12px;font-weight:700}.hero .accent{color:var(--color-primary)}.hero>p{font-size:16px;color:var(--color-muted);line-height:1.75}.panel{border:1px solid var(--color-line);background:var(--color-surface);border-radius:24px;box-shadow:var(--shadow-panel);overflow:hidden}.start-panel{display:grid;grid-template-columns:1.12fr 1fr}.dropzone{padding:28px 30px 24px;text-align:center;min-height:340px;display:flex;flex-direction:column;align-items:center;justify-content:center}.file-mark{width:56px;height:56px;border-radius:17px;display:grid;place-items:center;background:var(--color-mint-soft);color:var(--color-primary);margin-bottom:16px}.file-mark .icon{width:30px;height:30px}.dropzone h2{font-size:21px;letter-spacing:-.025em;margin-bottom:18px}.primary,.secondary{display:inline-flex;align-items:center;justify-content:center;gap:12px;font-size:16px;font-weight:700;min-height:48px;padding:0 24px;border-radius:12px;transition:background 140ms ease-out}.primary{background:var(--color-primary);color:#fff;min-height:56px;min-width:220px}.primary:hover{background:var(--color-primary-hover)}.primary:active{background:var(--color-primary-active)}.secondary{border:1px solid var(--color-line-strong);background:#fff;color:var(--color-ink)}.secondary:hover{background:var(--color-mint-soft)}.text{background:transparent;padding:10px 4px;color:var(--color-primary);font-size:14px;font-weight:700;min-height:44px;display:inline-flex;align-items:center;justify-content:center;gap:8px}.text:hover{text-decoration:underline}.drop-hint{font-size:14px;color:var(--color-muted);margin-top:12px}.formats{font-size:12px;color:var(--color-muted);margin-top:7px}.sample{margin-top:6px}.sample .icon{width:17px;height:17px}.proof{background:#F0F8F4;border-left:1px solid var(--color-line);padding:32px 32px 24px;display:flex;flex-direction:column;justify-content:center}.proof h3{font-size:16px;margin-bottom:20px}.proof-colheads{display:grid;grid-template-columns:1fr 1fr;font-size:12px;color:var(--color-muted);margin-bottom:6px}.proof-colheads span:last-child{text-align:right;padding-right:26px}.proof-row{display:grid;grid-template-columns:1fr 24px 1fr;gap:7px;align-items:center}.proof-row code{font-family:var(--font-mono);font-size:23px;font-weight:700;letter-spacing:-.025em}.proof-row code:last-child{color:var(--color-primary);text-align:right}.proof-row .icon{width:18px;height:18px;color:#6D9485}.proof-row.long code{font-size:13px;letter-spacing:-.02em}.proof-label{font-size:12px;color:var(--color-muted);margin:2px 0 14px}.proof-badge{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--color-primary);margin-top:1px}.proof-badge .icon{width:18px;height:18px}.private-line{display:flex;align-items:center;justify-content:center;gap:8px;color:var(--color-muted);font-size:14px;margin:22px auto 0;line-height:1.6}.private-line .icon{width:18px;height:18px;color:var(--color-primary)}.purpose{text-align:center;font-size:14px;color:var(--color-muted);margin-top:10px;line-height:1.8}.footer{max-width:1240px;margin:20px auto 0;border-top:1px solid var(--color-line);padding:22px 0 20px;display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;font-size:13px;color:var(--color-muted)}.footer-brand{font-size:19px;font-weight:700;color:var(--color-ink);letter-spacing:-.03em}.footer-sub{font-size:12px;font-weight:400;color:var(--color-muted);margin-left:16px;letter-spacing:0}.footer-right{display:flex;gap:24px;align-items:center}.trademark{width:100%;font-size:11px;margin-top:9px;line-height:1.8}.compact{padding:30px 0 24px}.compact h1{font-size:32px;line-height:1.45;margin:14px 0 7px}.file-top{display:flex;align-items:center;justify-content:space-between;padding:20px 24px 18px}.file-info{display:flex;gap:12px;align-items:center;min-width:0}.file-symbol{width:44px;height:48px;display:grid;place-items:center;color:var(--color-primary);background:var(--color-mint-soft);border-radius:10px}.file-info strong{font-size:17px}.file-info p{font-size:13px;color:var(--color-muted);margin-top:5px}.table-toolbar{display:flex;justify-content:space-between;align-items:center;padding:0 24px 15px;gap:10px}.badge{font-size:12px;font-weight:700;color:var(--color-primary);background:var(--color-mint-soft);border-radius:999px;display:flex;align-items:center;padding:5px 10px;gap:6px}.badge .icon{width:15px;height:15px}.encoding-badge{font-size:12px;color:var(--color-muted)}.table-wrap{overflow:auto;max-height:440px;margin:0 24px;border:1px solid var(--color-line);border-radius:10px;overscroll-behavior:contain}table{border-collapse:separate;border-spacing:0;width:100%;table-layout:fixed;font-size:14px}.row-col{width:48px}.c-a{width:150px}.c-b{width:260px}.c-c{width:200px}.c-d{width:290px}thead th{background:#F2F6F4;height:36px;font-size:12px;color:var(--color-muted);font-weight:500;border-right:1px solid var(--color-line);border-bottom:1px solid var(--color-line);position:sticky;top:0;z-index:2}thead th:first-child{left:0;z-index:3}tbody th{font-family:var(--font-mono);font-size:12px;background:#F7FAF8;color:var(--color-muted);font-weight:400;position:sticky;left:0;z-index:1}tbody td,tbody th{height:44px;border-bottom:1px solid var(--color-line);border-right:1px solid var(--color-line)}tbody tr:last-child td,tbody tr:last-child th{border-bottom:0}td:last-child,th:last-child{border-right:0}.cell{font-family:var(--font-mono);font-size:14px;display:block;height:43px;width:100%;text-align:left;background:transparent;color:var(--color-ink);padding:0 14px;white-space:pre;overflow:hidden;text-overflow:ellipsis}.cell:hover{background:var(--color-mint-soft)}.data-header .cell{font-family:var(--font-body);font-size:13px;font-weight:500}.preview-meta{display:flex;justify-content:space-between;color:var(--color-muted);font-size:12px;padding:10px 26px 12px;gap:10px}.mobile-scroll{display:none}.advanced{border-top:1px solid var(--color-line);padding:0 24px}.advanced summary{padding:15px 0;cursor:pointer;font-size:14px;color:var(--color-muted);min-height:48px}.settings{display:flex;align-items:flex-end;gap:16px;padding:0 0 14px}.settings label{display:flex;flex-direction:column;gap:7px;font-size:14px;flex:1}.settings select{min-height:48px;border:1px solid var(--color-line-strong);border-radius:10px;padding:0 12px;color:var(--color-ink);background:white;width:100%;font-size:16px}.settings-note{font-size:12px;color:var(--color-muted);margin:0 0 18px}.save-section{display:flex;align-items:center;justify-content:space-between;background:#F9FBFA;border-top:1px solid var(--color-line);padding:20px 24px}.save-info strong{font-size:17px}.save-info p{font-size:13px;color:var(--color-muted);margin-top:6px}.preserve-note{text-align:center;color:var(--color-muted);font-size:12px;margin-top:10px;line-height:1.75}.reset{display:flex;margin:8px auto 0}.done-hero{text-align:center;padding:54px 0 30px}.done-mark{width:68px;height:68px;background:var(--color-mint);color:var(--color-primary);border-radius:50%;display:grid;place-items:center;margin:0 auto 24px}.done-mark .icon{width:34px;height:34px;stroke-width:2.5}.done-hero h1{font-size:32px;line-height:1.45;letter-spacing:-.03em}.done-hero>p{font-size:15px;color:var(--color-muted);margin:14px auto 0;max-width:680px;line-height:1.8}.result-panel{max-width:720px;margin:auto;text-align:center;padding:30px 40px 8px}.result-symbol{width:52px;height:60px;border:1px solid var(--color-line);border-radius:12px;display:grid;place-items:center;color:var(--color-primary);margin:0 auto 16px}.result-symbol .icon{width:30px;height:30px}.result-file h2{font-size:21px;overflow-wrap:anywhere}.result-file p{font-size:14px;color:var(--color-muted);margin-top:10px}.result-actions{display:flex;justify-content:center;gap:12px;margin:26px 0 5px}.show-table{margin:5px auto 12px}.show-table .icon{width:17px;height:17px}.download-help{border-top:1px solid var(--color-line);text-align:left}.download-help summary{padding:18px 0;font-size:14px;color:var(--color-muted);cursor:pointer;min-height:48px}.download-help p{font-size:14px;line-height:1.9;margin-bottom:20px}.progress-panel{max-width:720px;margin:10px auto 0;padding:58px 30px 44px;text-align:center}.spinner{width:48px;height:48px;border:4px solid var(--color-mint);border-top-color:var(--color-primary);border-radius:50%;margin:0 auto 24px}.progress-panel h2{font-size:20px}.loading-file{font-size:14px;color:var(--color-muted);margin-top:12px}.stages{display:flex;align-items:center;justify-content:center;gap:15px;margin:24px auto;color:var(--color-muted);font-size:14px}.stages .current{color:var(--color-primary);font-weight:700;background:var(--color-mint-soft);border-radius:999px;padding:7px 16px}.cancel{margin-top:8px;min-width:150px}.error-panel{max-width:820px;margin:10px auto 0;padding:30px}.error-message{display:flex;align-items:flex-start;gap:15px;background:var(--color-error-soft);padding:22px;border-radius:14px;border:1px solid #F0D1CB}.error-icon{color:var(--color-error);padding-top:3px}.error-message h2{font-size:18px;line-height:1.65;color:var(--color-error)}.error-message p{font-size:14px;line-height:1.85;margin-top:10px;color:var(--color-ink)}.error-file{display:flex;align-items:center;gap:8px;padding:22px 0;font-size:14px;color:var(--color-muted)}.error-panel .advanced{padding:0}.error-actions{display:flex;align-items:center;justify-content:center;gap:30px;margin-top:24px}dialog{border:1px solid var(--color-line);border-radius:20px;padding:30px;width:min(620px,calc(100% - 40px));max-height:80vh;color:var(--color-ink)}dialog::backdrop{background:rgba(23,52,61,.4)}dialog h2{font-size:22px;padding-right:40px}dialog p{font-size:14px;line-height:1.9;margin-top:16px}.icon-close{position:absolute;right:14px;top:14px;width:44px;height:44px;border-radius:50%;background:var(--color-canvas);display:grid;place-items:center}#viewer-value{font:14px/1.8 var(--font-mono);white-space:break-spaces;overflow-wrap:anywhere;background:var(--color-canvas);padding:20px;border-radius:12px;max-height:50vh;overflow:auto}.viewer-caption{color:var(--color-muted)}
@media(max-width:1279px){.header,.footer{margin-left:40px;margin-right:40px}.c-d{width:250px}}
@media(max-width:767px){.header{height:72px;margin:0 20px}.brand img{width:216px}.hub{font-size:12px;gap:2px}.main{width:calc(100% - 40px);min-height:0}.hero{padding:28px 0 24px}.eyebrow{font-size:11px;padding:5px 10px;gap:9px}.hero h1{font-size:29px;letter-spacing:-.052em;line-height:1.5;margin:14px 0 12px}.hero>p{font-size:14px;line-height:1.85}.start-panel{display:block;border-radius:20px}.dropzone{padding:24px 18px 17px;min-height:300px}.file-mark{width:48px;height:48px;border-radius:14px;margin-bottom:12px}.file-mark .icon{width:26px;height:26px}.dropzone h2{font-size:18px;margin-bottom:16px}.primary{min-height:52px;width:100%;min-width:0;font-size:16px}.dropzone .primary{width:calc(100% - 16px)}.drop-hint{display:none}.formats{font-size:12px;margin-top:10px}.sample{margin-top:0}.proof{border-top:1px solid var(--color-line);border-left:0;padding:20px 22px 18px}.proof h3{font-size:14px;margin-bottom:12px}.proof-colheads{display:none}.proof-row{grid-template-columns:1fr 20px 1fr;gap:6px}.proof-row code{font-size:18px}.proof-row.long code{font-size:11px}.proof-label{font-size:11px;margin-bottom:9px}.proof-badge{font-size:12px;margin-top:3px}.private-line{font-size:12px;align-items:flex-start;text-align:left;gap:6px;margin-top:18px;line-height:1.8}.private-line .icon{width:16px;height:16px;margin-top:3px}.purpose{font-size:12px;margin-top:8px;line-height:1.9}.footer{margin:28px 20px 0;padding:18px 0 22px;gap:10px}.footer-brand{font-size:17px}.footer-sub{display:none}.footer-right{gap:12px;font-size:12px}.footer-right .text{font-size:12px}.trademark{font-size:10px;line-height:1.85;margin-top:2px}.compact{padding:24px 0 20px}.compact h1{font-size:23px;letter-spacing:-.05em;margin-top:12px}.compact>p{font-size:13px}.ready-panel{border-radius:18px;overflow:visible}.file-top{padding:16px 16px 8px;flex-wrap:wrap;gap:2px}.file-info{gap:9px}.file-symbol{width:36px;height:42px}.file-info strong{font-size:15px}.file-info p{font-size:11px;margin-top:3px}.file-top .replace{font-size:12px;margin-left:45px;min-height:38px;padding:3px 0}.table-toolbar{padding:0 14px 10px;gap:5px}.badge{font-size:10px;padding:5px 7px;gap:4px}.badge .icon{width:12px;height:12px}.encoding-badge{font-size:10px}.table-wrap{margin:0 12px;max-height:330px;border-radius:8px}.row-col{width:36px}.c-a{width:124px}.c-b{width:225px}.c-c{width:177px}.c-d{width:200px}table{width:762px}thead th{height:32px}tbody td,tbody th{height:42px}.cell{height:41px;font-size:13px;padding:0 10px}.data-header .cell{font-size:12px}.preview-meta{padding:9px 14px 2px;font-size:11px}.desktop-hint{display:none}.mobile-scroll{display:block;font-size:11px;color:var(--color-muted);padding:4px 14px 10px;line-height:1.7}.advanced{padding:0 14px}.advanced summary{font-size:12px;padding:14px 0;min-height:48px}.settings{display:grid;grid-template-columns:1fr;gap:14px;padding-bottom:12px}.settings label{font-size:14px}.settings .secondary{width:100%}.settings-note{font-size:12px;line-height:1.8}.save-section{position:sticky;bottom:0;z-index:5;padding:12px;border-radius:0 0 18px 18px;display:block;background:#fff;box-shadow:0 -8px 22px rgba(23,52,61,.035)}.save-info{display:none}.preserve-note{font-size:11px;text-align:left;line-height:1.8}.reset{font-size:12px;margin-top:2px}.done-hero{padding:34px 0 24px}.done-mark{width:58px;height:58px;margin-bottom:22px}.done-mark .icon{width:30px;height:30px}.done-hero h1{font-size:23px;letter-spacing:-.045em}.done-hero>p{font-size:14px;line-height:1.9;max-width:330px;text-align:left;margin-top:16px}.result-panel{padding:25px 20px 5px;border-radius:20px}.result-symbol{width:48px;height:55px;margin-bottom:18px}.result-file h2{font-size:17px;line-height:1.65}.result-file p{font-size:12px;margin-top:6px}.result-actions{flex-direction:column;gap:12px;margin-top:24px}.result-actions .secondary{min-height:48px;font-size:14px}.show-table{font-size:13px;margin:5px 0 10px}.download-help summary{font-size:12px;padding:17px 0}.download-help p{font-size:13px;line-height:1.9}.progress-panel{padding:44px 20px 36px;border-radius:20px;margin:5px auto 0}.progress-panel h2{font-size:18px}.loading-file{font-size:13px}.stages{gap:11px;font-size:12px}.cancel{font-size:14px}.error-panel{padding:18px;border-radius:20px;margin-top:4px}.error-message{padding:16px;gap:10px;flex-direction:column}.error-message h2{font-size:16px}.error-message p{font-size:13px;line-height:1.8}.error-file{font-size:13px;padding:18px 0}.error-actions{flex-direction:column;gap:5px;margin-top:18px}.error-actions .primary{font-size:14px}.error-actions .reset{margin:0}dialog{padding:24px}dialog h2{font-size:19px}#viewer-value{font-size:13px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important}}

/* Final production-aligned accessibility refinements. */
.mobile-purpose{display:none}
@media(max-width:767px){.file-info p{font-size:12px}.file-top .replace{min-height:44px}.badge{font-size:11px}.encoding-badge{font-size:11px}.table-wrap{max-height:360px}tbody td,tbody th{height:44px}.cell{height:44px;font-size:14px}.preview-meta,.mobile-scroll{font-size:12px}.advanced summary{font-size:14px}.preserve-note{font-size:12px}.private-line,.purpose{font-size:13px}.save-section{padding-bottom:calc(12px + env(safe-area-inset-bottom))}.mobile-purpose{display:block;font-size:13px;color:var(--color-muted);line-height:1.85;margin:14px 0 0}.trademark{font-size:11px}}
@media(max-width:359px){.brand img{width:180px}.hub{font-size:11px}.proof-row.long{grid-template-columns:1fr 16px 1fr;gap:4px}.proof-row.long code{font-size:10px}.hero h1{font-size:25px}}

@media(max-width:767px){.ready-panel.settings-open .save-section{position:static;box-shadow:none}}

/* Functional app additions. Input data never appears in selectors, styles or attributes. */
.skip-link{position:absolute;left:16px;top:-100px;z-index:100;background:var(--color-surface);padding:12px 18px;border:2px solid var(--color-focus);border-radius:var(--radius-button)}
.skip-link:focus{top:10px}
.visually-hidden{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}
.dropzone.dragging{outline:2px dashed var(--color-primary);outline-offset:-8px;background:var(--color-mint-soft)}
.dropzone.dragging .drop-hint{color:var(--color-primary);font-weight:700}
.file-copy{min-width:0}
.file-info-button{display:block;background:transparent;color:var(--color-ink);padding:0;border:0;font-size:17px;font-weight:700;max-width:min(65vw,650px);min-height:44px;text-align:left;cursor:pointer}
.file-info-button bdi{display:block;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.file-info-button:hover{text-decoration:underline}
.file-info p{margin-top:0}
.table-wrap table{width:max-content;min-width:100%;table-layout:fixed}
.table-wrap .c-other{width:180px}
.table-wrap .cell{position:relative;user-select:text}
.pagination{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:4px 24px 14px;color:var(--color-muted);font-size:12px}
.pagination:empty{display:none}
.page-button{padding:0 11px;min-height:44px;font-size:12px}
.slice-loading{padding:48px 24px;text-align:center;color:var(--color-muted)}
.warning-list:empty{display:none}
.warning-list{margin:0 24px 12px;border:1px solid #ecd9b1;border-radius:8px;background:var(--color-warning-soft);color:var(--color-warning);padding:8px 12px;font-size:13px;line-height:1.7}
.warning-list p+p{margin-top:4px}
.settings-dirty{margin:0 0 14px;padding:10px 12px;border-radius:8px;background:var(--color-warning-soft);color:var(--color-warning);font-size:13px;line-height:1.6}
.settings-dirty[hidden]{display:none}
.disabled-link,.disabled-link:hover{background:var(--color-disabled);color:var(--color-disabled-text);cursor:not-allowed}
.spinner{animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
dialog bdi{overflow-wrap:anywhere}
dialog #viewer-empty{color:var(--color-muted)}
@media(max-width:767px){.file-top{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:6px}.file-info{min-width:0}.file-info-button{font-size:15px;max-width:100%}.file-top .replace{margin-left:0;white-space:nowrap}.pagination{padding:4px 14px 14px;gap:6px}.page-button{font-size:12px}.warning-list{margin:0 14px 10px}}
@media(prefers-reduced-motion:reduce){.spinner{animation:none}}
@media(max-width:359px){.narrow-title-line{display:block}}