:root{font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#17212e;background:#fff;font-size:16px;line-height:1.6;accent-color:#175fcb}*{box-sizing:border-box}body{margin:0}header,main,footer{max-width:1080px;margin:auto;padding:24px 32px}header{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #d9dfe6}nav{display:flex;gap:24px}a{color:#175fcb;text-underline-offset:3px}.skip{position:absolute;top:-80px;padding:8px;background:#fff}.skip:focus{top:0}h1{font-size:clamp(2rem,4vw,2.8rem);line-height:1.2;letter-spacing:-.025em;margin:24px 0 16px}h2{font-size:1.35rem;line-height:1.35;margin:32px 0 12px}h3{font-size:1.05rem;margin:24px 0 8px}.intro{font-size:1.15rem;max-width:72ch}.pilot{color:#46546a;font-size:.9rem}.workspace{border:1px solid #d9dfe6;border-radius:14px;padding:0 24px 24px;margin:28px 0 44px}.inputs{display:grid;grid-template-columns:1fr 1fr;gap:24px}label{font-weight:650}input{display:block;width:100%;padding:12px;margin-top:8px;border:1px solid #bac5d2;border-radius:6px;font:inherit}button{padding:11px 16px;font:inherit;font-weight:600;border:1px solid #8b9aae;border-radius:6px;background:#fff;color:#233448;cursor:pointer}button:hover:enabled{background:#eef4fd}.primary{color:#fff;background:#175fcb;border-color:#175fcb}.primary:hover:enabled{background:#124da6}button:disabled{color:#46546a;background:#f1f3f6;border-color:#cbd3df;cursor:default}:focus-visible{outline:3px solid #175fcb;outline-offset:3px}.actions,.delivery{display:flex;gap:12px;flex-wrap:wrap;margin:18px 0}#limits,#copy-note{font-size:.9rem;color:#46546a}#diff-status{padding:12px 0;border-top:1px solid #d9dfe6;min-height:52px}#diff-copy-status{min-height:26px}.diff-table{overflow-x:auto;border:1px solid #d9dfe6;border-radius:6px}table{border-collapse:collapse;font-variant-numeric:tabular-nums;width:100%}th,td{text-align:left;padding:10px 12px;border-bottom:1px solid #d9dfe6;white-space:pre-wrap;overflow-wrap:anywhere;min-width:100px}th{background:#f1f4f8;font-weight:650}td{font-family:ui-monospace,monospace;font-size:.88rem}p,li{max-width:75ch}li+li{margin-top:8px}footer{margin-top:48px;border-top:1px solid #d9dfe6;color:#46546a}::selection{background:#d7e8ff;color:#17212e}@media(max-width:640px){header,main,footer{padding:20px}.inputs{grid-template-columns:1fr}header{align-items:flex-start;gap:16px;flex-direction:column}nav{gap:16px;flex-wrap:wrap}.workspace{padding:0 16px 16px}.actions button,.delivery button{width:100%}}

.file-choice{display:block;padding:16px;border:1px solid #8b9aae;border-radius:6px;cursor:pointer}.file-choice:hover{background:#eef4fd}.file-choice:focus-within{outline:3px solid #175fcb;outline-offset:3px}.file-choice input{position:absolute;width:1px;height:1px;padding:0;border:0;overflow:hidden;clip-path:inset(50%)}