:root{--bg:#0b0f17;--panel:#131a26;--panel-2:#1a2333;--border:#26314a;--text:#e6edf7;--muted:#8b98ad;--accent:#4f8cff;--accent-hover:#3a78f0;--danger:#ff5c5c;--ok:#35c26b;--radius:10px}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}a{color:var(--accent);text-decoration:none}button,input,select,textarea{font-family:inherit;font-size:14px}.container{max-width:820px;margin:0 auto;padding:32px 20px}.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:24px}.label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}.input,.textarea{width:100%;background:var(--panel-2);border:1px solid var(--border);border-radius:8px;color:var(--text);padding:10px 12px;outline:none}.input:focus,.textarea:focus{border-color:var(--accent)}.textarea{min-height:160px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;resize:vertical}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--accent);color:#fff;border:none;border-radius:8px;padding:10px 18px;cursor:pointer;font-weight:600;transition:background .15s ease}.btn:hover{background:var(--accent-hover)}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-ghost{background:transparent;border:1px solid var(--border);color:var(--muted)}.btn-ghost:hover{background:var(--panel-2);color:var(--text)}.row{margin-bottom:18px}.error{color:var(--danger);font-size:13px;margin-top:10px}.muted{color:var(--muted)}.topbar{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border);background:var(--panel)}.brand{font-weight:700;letter-spacing:.5px}.badge{display:inline-block;font-size:11px;color:var(--muted);border:1px solid var(--border);border-radius:999px;padding:2px 10px;margin-left:8px}.result{background:var(--panel-2);border:1px solid var(--border);border-radius:8px;padding:14px;white-space:pre-wrap;word-break:break-word;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;max-height:320px;overflow:auto}.status-ok{color:var(--ok)}.status-bad{color:var(--danger)}