:root{--bg:#0f172a;--card:#111827;--border:#1f2933;--text:#e5e7eb;--muted:#9ca3af;--primary:#38bdf8;--danger:#ef4444}*{box-sizing:border-box}body{color:var(--text);background:linear-gradient(#020617,#020617 40%,#020617);margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,sans-serif}main{max-width:720px;margin:60px auto;padding:24px}.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:24px}h1{margin-top:0;font-size:1.8rem;font-weight:600}textarea,input{width:100%;color:var(--text);border:1px solid var(--border);background:#020617;border-radius:8px;margin-top:6px;padding:10px;font-size:.95rem}textarea{resize:vertical}label{color:var(--muted);margin-top:14px;font-size:.85rem;display:block}button{background:var(--primary);color:#020617;cursor:pointer;border:none;border-radius:10px;width:100%;margin-top:20px;padding:12px;font-size:1rem;font-weight:600}button:disabled{opacity:.6;cursor:not-allowed}.error{color:var(--danger);margin-top:12px;font-size:.9rem}.result{border:1px solid var(--border);background:#020617;border-radius:10px;margin-top:20px;padding:14px}.result a{color:var(--primary);word-break:break-all;text-decoration:none}footer{text-align:center;color:var(--muted);margin-top:40px;font-size:.75rem}