:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg:#07111f;--panel:#0d1b2d;--line:#20354d;--text:#f5f8fc;--muted:#9eb0c5;--accent:#65d9ff;--good:#65e6a1}*{box-sizing:border-box}body{color:var(--text);background:linear-gradient(135deg,#07111f,#0b1730 55%,#08131f);margin:0;font-family:Arial,Helvetica,sans-serif}a{color:inherit;text-decoration:none}.shell{max-width:1180px;margin:auto;padding:28px 22px 70px}.nav{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;padding-bottom:18px;display:flex}.brand{letter-spacing:.08em;font-weight:800}.navlinks{color:var(--muted);gap:18px;font-size:14px;display:flex}.hero{max-width:850px;padding:72px 0 45px}.eyebrow{color:var(--accent);letter-spacing:.14em;text-transform:uppercase;font-size:12px;font-weight:800}.hero h1{margin:15px 0;font-size:clamp(42px,7vw,76px);line-height:.98}.lead{color:var(--muted);font-size:20px;line-height:1.55}.grid{grid-template-columns:repeat(4,1fr);gap:14px;display:grid}.card{border:1px solid var(--line);background:#0d1b2de6;border-radius:16px;padding:20px}.stage{min-height:145px}.num{color:var(--accent);font-size:12px;font-weight:800}.card h2{margin:12px 0 8px;font-size:18px}.muted{color:var(--muted);line-height:1.5}.btn{background:var(--accent);color:#04101c;cursor:pointer;border:0;border-radius:10px;margin-top:15px;padding:12px 17px;font-weight:800;display:inline-block}.panel{border:1px solid var(--line);background:#0d1b2dc7;border-radius:16px;margin-top:28px;padding:24px}.status{color:var(--good);font-weight:800}.form{gap:14px;max-width:700px;display:grid}.input{border:1px solid var(--line);width:100%;color:var(--text);background:#071525;border-radius:9px;padding:13px}label{color:var(--muted);font-size:13px}.result{white-space:pre-wrap;background:#06101c;border-radius:10px;padding:15px;overflow:auto}@media (max-width:850px){.grid{grid-template-columns:repeat(2,1fr)}.navlinks{display:none}}@media (max-width:520px){.grid{grid-template-columns:1fr}}