:root{color-scheme:light;--ink: #1f2933;--muted: #56616f;--paper: #f7f4ee;--line: #d8d0c3;--blue: #315f9e;--green: #39745c}*{box-sizing:border-box}body{margin:0;min-height:100vh;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:var(--ink);background:linear-gradient(#f7f4eeeb,#f7f4eef7)}main{width:min(900px,calc(100% - 40px));margin:0 auto;padding:44px 0 56px}header{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-bottom:56px}.brand{font-size:18px;font-weight:700}.status{border:1px solid var(--line);padding:8px 12px;font-size:14px;color:var(--muted);background:#ffffff8c}h1{margin:0;font-size:clamp(40px,7vw,78px);line-height:.98}.lead{max-width:640px;margin:26px 0 8px;font-size:clamp(18px,2vw,22px);line-height:1.45;color:var(--muted)}.muted{color:var(--muted);font-size:15px;margin:0 0 8px}.row{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}.btn{font:inherit;font-weight:600;cursor:pointer;border:1px solid var(--blue);background:var(--blue);color:#fff;padding:12px 20px;border-radius:2px}.btn:hover{filter:brightness(1.05)}.btn:disabled{opacity:.6;cursor:default}.btn.ghost{background:transparent;color:var(--ink);border-color:var(--line)}.result{margin-top:24px;padding:18px;background:#fff;border:1px solid var(--line);border-radius:2px;font-size:13px;line-height:1.5;white-space:pre-wrap;word-break:break-word;overflow-x:auto}