:root{color-scheme:light;--bg: #f4f0e8;--bg-grid: rgba(34, 34, 29, .08);--ink: #20211d;--muted: #66695e;--panel: #fffdf7;--panel-strong: #f8f3e8;--line: #d9d1c2;--accent: #0b6f5b;--accent-strong: #074f42;--amber: #b56a14;--danger: #9f2f24;--shadow: 0 24px 60px rgba(41, 34, 24, .12);font-family:Aptos,Segoe UI,Tahoma,sans-serif}*{box-sizing:border-box}body{min-width:320px;margin:0;color:var(--ink);background:linear-gradient(90deg,var(--bg-grid) 1px,transparent 1px),linear-gradient(180deg,var(--bg-grid) 1px,transparent 1px),var(--bg);background-size:32px 32px}button,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.5}.app-shell{width:min(1440px,100%);min-height:100vh;margin:0 auto;padding:22px}.topbar{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 0 22px}.brand{display:flex;align-items:center;gap:14px}.brand-mark{display:grid;width:48px;height:56px;place-items:center;border:2px solid var(--ink);border-radius:4px;background:var(--panel);box-shadow:6px 6px 0 var(--accent);font-family:Georgia,Times New Roman,serif;font-size:18px;font-weight:700}.brand h1,.brand p,.panel-heading h2,.panel-heading p,.output-toolbar h2,.output-toolbar p{margin:0}.brand h1,.panel-heading h2,.output-toolbar h2{font-family:Georgia,Times New Roman,serif;font-weight:700;letter-spacing:0}.brand h1{font-size:clamp(28px,4vw,48px);line-height:1}.brand p{margin-top:6px;color:var(--muted);font-size:14px}.status-actions{display:inline-flex;align-items:center;gap:10px}.info-popover{position:relative;display:inline-grid;place-items:center}.info-button{display:grid;width:34px;height:34px;place-items:center;border:1px solid var(--line);border-radius:50%;background:#fffdf7db;color:var(--ink);font-size:14px;font-weight:900;line-height:1}.info-button:hover,.info-button:focus-visible{border-color:var(--accent);outline:none;box-shadow:0 0 0 3px #0b6f5b29}.info-tooltip{position:absolute;top:calc(100% + 10px);right:0;z-index:10;width:min(320px,calc(100vw - 32px));padding:12px;border:1px solid var(--ink);border-radius:8px;background:var(--panel);box-shadow:8px 8px #0b6f5b2e;color:var(--ink);font-size:13px;line-height:1.45;opacity:0;pointer-events:none;transform:translateY(-4px);transition:opacity .12s ease,transform .12s ease}.info-popover:hover .info-tooltip,.info-popover:focus-within .info-tooltip{opacity:1;transform:translateY(0)}.device-badge{display:inline-flex;align-items:center;gap:9px;min-height:34px;padding:7px 12px;border:1px solid var(--line);border-radius:999px;background:#fffdf7d1;color:var(--ink);font-size:13px;white-space:nowrap}.device-dot{width:9px;height:9px;border-radius:50%;background:var(--muted)}.device-badge[data-device=webgpu] .device-dot,.device-badge[data-device=webnn] .device-dot,.device-badge[data-device=webnn-npu] .device-dot{background:var(--accent)}.workspace{display:grid;grid-template-columns:minmax(300px,420px) minmax(0,1fr);gap:18px;align-items:stretch}.input-panel,.output-panel{min-height:calc(100vh - 136px);border:1px solid var(--line);border-radius:8px;background:#fffdf7eb;box-shadow:var(--shadow)}.input-panel{display:flex;flex-direction:column;gap:16px;padding:18px}.output-panel{display:flex;min-width:0;flex-direction:column}.panel-heading,.output-toolbar{display:flex;align-items:center;justify-content:space-between;gap:14px}.eyebrow{color:var(--amber);font-size:11px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.panel-heading h2,.output-toolbar h2{margin-top:2px;font-size:24px}.dropzone{position:relative;display:grid;min-height:340px;place-items:center;gap:16px;padding:28px;overflow:hidden;border:2px dashed #b9ad99;border-radius:8px;background:linear-gradient(135deg,rgba(11,111,91,.08),transparent 52%),var(--panel-strong);outline:none;transition:border-color .16s ease,background .16s ease,transform .16s ease}.dropzone.is-dragging,.dropzone:focus-visible{border-color:var(--accent);background:linear-gradient(135deg,rgba(11,111,91,.16),transparent 56%),var(--panel);transform:translateY(-1px)}.dropzone input{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}.paper-stack{position:relative;width:128px;height:154px}.paper-stack span{position:absolute;inset:0;border:2px solid var(--ink);border-radius:5px;background:var(--panel);box-shadow:8px 8px #0b6f5b2e}.paper-stack span:nth-child(1){transform:rotate(-7deg) translate(-12px,10px)}.paper-stack span:nth-child(2){transform:rotate(4deg) translate(10px,2px)}.paper-stack span:nth-child(3):before,.paper-stack span:nth-child(3):after{position:absolute;right:18px;left:18px;height:2px;background:var(--line);content:""}.paper-stack span:nth-child(3):before{top:44px;box-shadow:0 18px 0 var(--line),0 36px 0 var(--line),0 54px 0 var(--line)}.paper-stack span:nth-child(3):after{top:116px;width:52px;background:var(--accent)}.dropzone-copy{display:grid;gap:4px;text-align:center}.dropzone-copy strong{font-family:Georgia,Times New Roman,serif;font-size:30px;line-height:1.1}.dropzone-copy span{color:var(--muted);font-size:14px}.primary-button,.secondary-button,.icon-button{min-height:38px;border:1px solid var(--ink);border-radius:6px;font-weight:800;transition:background .14s ease,color .14s ease,transform .14s ease,box-shadow .14s ease}.primary-button{padding:0 18px;background:var(--ink);color:#fffdf7;box-shadow:4px 4px 0 var(--accent)}.primary-button:hover,.secondary-button:hover,.icon-button:hover:not(:disabled){transform:translateY(-1px)}.secondary-button,.icon-button{padding:0 14px;background:var(--panel);color:var(--ink)}.secondary-button:hover,.icon-button:hover:not(:disabled){background:var(--ink);color:#fffdf7}.file-meta,.ocr-settings,.progress-panel,.error-panel,.warning-list{border:1px solid var(--line);border-radius:8px;background:var(--panel)}.file-meta{display:grid;gap:5px;padding:12px;color:var(--muted);font-size:13px}.file-meta strong{color:var(--ink)}.ocr-settings{display:grid;gap:10px;margin:0;padding:12px}.ocr-settings legend{display:grid;gap:2px;padding:0 6px}.ocr-settings strong{font-family:Georgia,Times New Roman,serif;font-size:18px}.segmented-control{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px}.segmented-control label{position:relative;min-width:0}.segmented-control input{position:absolute;inset:0;opacity:0}.segmented-control span{display:grid;min-height:38px;place-items:center;border:1px solid var(--line);border-radius:6px;background:var(--panel-strong);font-size:13px;font-weight:800;transition:background .14s ease,border-color .14s ease,color .14s ease,transform .14s ease}.segmented-control input:checked+span{border-color:var(--ink);background:var(--ink);color:#fffdf7}.segmented-control input:focus-visible+span{outline:2px solid var(--accent);outline-offset:2px}.segmented-control label:hover span{transform:translateY(-1px)}.progress-panel{display:grid;gap:10px;padding:12px}.progress-copy{display:flex;justify-content:space-between;gap:12px;font-size:13px;font-weight:800}.progress-track{height:10px;overflow:hidden;border:1px solid var(--line);border-radius:999px;background:#ebe2d4}.progress-track span{display:block;width:0%;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--accent),#4c8a36);transition:width .18s ease}.progress-message{min-height:19px;margin:0;color:var(--muted);font-size:13px}.progress-footer{display:flex;align-items:center;justify-content:space-between;gap:12px}.progress-cancel{min-height:32px;padding:0 12px;white-space:nowrap}.error-panel{padding:12px;border-color:#9f2f2452;background:#fff4ef}.error-panel strong{display:block;color:var(--danger)}.error-panel p{margin:6px 0 12px;color:#663329;font-size:13px;line-height:1.45}.warning-list{display:grid;gap:8px;margin:0;padding:12px 12px 12px 28px;color:#644411;font-size:13px}.output-toolbar{padding:18px;border-bottom:1px solid var(--line)}.toolbar-actions{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:8px}#outputArea{width:100%;min-height:520px;flex:1;resize:none;border:0;padding:18px;background:#171a17;color:#f6f1e7;caret-color:#f6f1e7;font-family:Cascadia Mono,SFMono-Regular,Consolas,monospace;font-size:14px;line-height:1.7;outline:none}#outputArea::placeholder{color:#f6f1e77a}[hidden]{display:none!important}@media(max-width:860px){.app-shell{padding:16px}.topbar,.workspace{display:grid;grid-template-columns:1fr}.device-badge{width:fit-content}.status-actions{justify-content:start}.input-panel,.output-panel{min-height:auto}.dropzone{min-height:280px}#outputArea{min-height:460px}}@media(max-width:520px){.brand{align-items:flex-start}.brand-mark{width:42px;height:50px;font-size:16px}.output-toolbar{display:grid}.toolbar-actions{justify-content:stretch}.toolbar-actions button{flex:1}}