:root{--bg:#0f1416;--panel:#161d20;--ink:#e7ede9;--muted:#8aa098;--hairline:#26302f;--accent:#dce84a;--critical:#c1443a;--safe:#4c8b7c}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Inter,sans-serif}.wrap{max-width:760px;margin:0 auto;padding:40px 20px}.banner{border:1px dashed var(--hairline);color:var(--muted);font-family:Courier New,monospace;font-size:12px;padding:10px 14px;border-radius:4px;margin-bottom:28px;letter-spacing:.02em}h1{font-size:24px;margin:0 0 8px}p.sub{color:var(--muted);font-size:14px;margin:0 0 32px}.card{border:1px solid var(--hairline);background:var(--panel);border-radius:6px;padding:20px 22px;margin-bottom:16px}.card h2{font-size:15px;margin:0 0 6px}.card p{color:var(--muted);font-size:13px;margin:0 0 14px;line-height:1.5}a.button,button{display:inline-block;font-family:Courier New,monospace;font-size:12.5px;letter-spacing:.04em;text-transform:uppercase;background:var(--accent);color:#12160b;border:none;padding:10px 16px;border-radius:4px;font-weight:600;cursor:pointer;text-decoration:none}button:disabled{opacity:.5;cursor:default}pre.result{margin-top:14px;background:#0b0f10;border:1px solid var(--hairline);border-radius:4px;padding:12px;font-size:11.5px;color:#b8c4be;white-space:pre-wrap;word-break:break-word;max-height:260px;overflow-y:auto}.status-ok{color:var(--safe)}.status-error{color:var(--critical)}