:root{--red:#a91b0d;--red2:#7d1008;--black:#0d0d0d;--ink:#181818;--muted:#6f6f72;--line:#e8e8eb;--paper:#fff;--bg:#f5f5f7;--shadow:0 14px 40px rgba(0,0,0,.08)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:linear-gradient(180deg,#fff 0,#f6f6f8 45%,#f1f1f4 100%);color:var(--ink);min-height:100vh}.topbar{height:72px;background:var(--black);color:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 max(24px,calc((100vw - 1180px)/2));border-bottom:4px solid var(--red)}.brand-wrap{display:flex;align-items:center;gap:12px}.mark{width:40px;height:40px;border-radius:12px;background:var(--red);display:grid;place-items:center;font-size:22px}.brand{font-family:Georgia,"Times New Roman",serif;font-weight:800;font-size:21px;letter-spacing:.2px}.brand-sub{font-size:11px;color:#bdbdc2;text-transform:uppercase;letter-spacing:1.4px;margin-top:2px}.privacy-pill{border:1px solid #3d3d40;background:#1c1c1e;border-radius:999px;padding:9px 13px;font-size:12px;color:#e9e9eb}.shell{width:min(1180px,calc(100% - 32px));margin:0 auto;padding:52px 0 30px}.hero{text-align:center;max-width:820px;margin:0 auto 30px}.eyebrow{color:var(--red);font-size:12px;font-weight:900;letter-spacing:1.8px}.hero h1{font-family:Georgia,"Times New Roman",serif;font-size:clamp(34px,5vw,62px);line-height:1.02;margin:12px 0 16px;color:#111}.hero p{font-size:18px;line-height:1.65;color:#5b5b61;margin:0 auto;max-width:720px}.card{background:var(--paper);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow)}.upload-card{padding:14px;max-width:900px;margin:0 auto 28px}.dropzone{width:100%;min-height:250px;border:2px dashed #d1d1d6;border-radius:16px;background:linear-gradient(180deg,#fff,#fafafa);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:7px;cursor:pointer;color:var(--ink);transition:.18s}.dropzone:hover,.dropzone.drag{border-color:var(--red);background:#fff8f7;transform:translateY(-1px)}.drop-icon{width:56px;height:56px;border-radius:50%;display:grid;place-items:center;background:var(--red);color:#fff;font-size:32px;line-height:1;margin-bottom:6px}.dropzone strong{font-size:20px}.dropzone span:not(.drop-icon){color:var(--muted)}.dropzone small{margin-top:7px;color:#9a9aa1}.workspace{display:grid;gap:18px}.toolbar{padding:22px}.file-meta{display:flex;justify-content:space-between;gap:14px;align-items:flex-start;padding-bottom:17px;border-bottom:1px solid var(--line)}.file-meta strong{font-size:17px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-meta span{font-size:13px;color:var(--muted);white-space:nowrap}.controls-grid{display:grid;grid-template-columns:1fr 1fr 1.1fr;gap:14px;margin:18px 0}.control{display:flex;flex-direction:column;gap:7px;font-size:12px;font-weight:800;color:#48484d}.control select{height:45px;border:1px solid #dcdce1;border-radius:11px;padding:0 12px;background:#fff;color:#161618;font-size:14px;outline:none}.control select:focus{border-color:var(--red);box-shadow:0 0 0 3px rgba(169,27,13,.09)}.checkbox-control{border:1px solid #e0e0e4;border-radius:11px;display:flex;flex-direction:row;align-items:center;padding:0 14px;min-height:45px;margin-top:23px;font-size:13px}.checkbox-control input{accent-color:var(--red);width:17px;height:17px}.target-box{display:grid;grid-template-columns:1fr 1fr;gap:10px;background:#f7f7f8;border:1px solid #e8e8ec;border-radius:13px;padding:14px 16px;margin-bottom:15px}.target-box div{display:flex;flex-direction:column;gap:4px}.target-box small{color:var(--muted);font-size:11px}.target-box strong{font-size:14px}.primary,.secondary{appearance:none;border:0;border-radius:12px;min-height:48px;padding:0 19px;font-weight:900;font-size:14px;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;transition:.16s}.primary{background:linear-gradient(180deg,#bd2517,var(--red2));color:#fff;box-shadow:0 8px 20px rgba(169,27,13,.22)}.primary:hover{filter:brightness(1.06);transform:translateY(-1px)}.primary:disabled{opacity:.55;cursor:not-allowed;transform:none}.secondary{background:#f0f0f2;color:#262629;margin-left:8px}.status{padding:18px}.status-line{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.status-line span{font-variant-numeric:tabular-nums;font-weight:900;color:var(--red)}.progress{height:11px;border-radius:999px;background:#ededf0;overflow:hidden}.progress>div{height:100%;width:0;background:linear-gradient(90deg,var(--red),#e34a38);transition:width .2s}.status p{margin:9px 0 0;color:var(--muted);font-size:12px}.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.preview{overflow:hidden}.preview-head{height:55px;padding:0 17px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.preview-head span{font-size:11px;color:var(--muted);background:#f2f2f4;border-radius:999px;padding:6px 9px}.image-stage{height:470px;display:grid;place-items:center;overflow:auto;padding:14px}.checker{background-color:#f8f8f8;background-image:linear-gradient(45deg,#ececef 25%,transparent 25%),linear-gradient(-45deg,#ececef 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#ececef 75%),linear-gradient(-45deg,transparent 75%,#ececef 75%);background-size:22px 22px;background-position:0 0,0 11px,11px -11px,-11px 0}.image-stage img{display:block;max-width:100%;max-height:100%;object-fit:contain;box-shadow:0 8px 30px rgba(0,0,0,.12)}.empty-result{text-align:center;color:#8d8d94}.empty-result span{display:block;font-size:42px;color:var(--red);margin-bottom:8px}.download{padding:18px 20px;display:flex;align-items:center;justify-content:space-between;gap:20px}.download p{margin:5px 0 0;color:var(--muted);font-size:13px}.download-btn{min-width:220px}.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:25px}.mini-card{background:#fff;border:1px solid var(--line);border-radius:17px;padding:18px;display:flex;gap:12px}.mini-card>span{width:38px;height:38px;flex:0 0 38px;border-radius:11px;background:#fff2f0;display:grid;place-items:center}.mini-card strong{font-size:14px}.mini-card p{font-size:12px;line-height:1.5;color:var(--muted);margin:5px 0 0}.note{margin:22px auto 0;max-width:920px;padding:15px 18px;border-left:4px solid var(--red);background:#fff8f7;color:#5f4744;font-size:12px;line-height:1.55;border-radius:0 12px 12px 0}footer{text-align:center;color:#8c8c91;font-size:12px;padding:26px 20px 40px}.hidden{display:none!important}@media(max-width:820px){.privacy-pill{display:none}.shell{padding-top:34px}.hero p{font-size:16px}.controls-grid{grid-template-columns:1fr}.checkbox-control{margin-top:0}.target-box{grid-template-columns:1fr}.compare-grid{grid-template-columns:1fr}.image-stage{height:360px}.info-grid{grid-template-columns:1fr}.download{flex-direction:column;align-items:stretch}.download-btn{width:100%}.secondary{margin-left:0;margin-top:9px;width:100%}.primary:not(.download-btn){width:100%}.file-meta{flex-direction:column}.file-meta span{white-space:normal}}