:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--bg:#f7f7f0;--surface:#fffef8;--text:#1f2937;--muted:#4b5563;--accent:#0f766e;--accent-strong:#134e4a;--danger:#b91c1c;--border:#d4d4c7}*{box-sizing:border-box}html,body{background:radial-gradient(circle at top right,#e7f6f4 0%,var(--bg)40%);color:var(--text);margin:0;padding:0;font-family:IBM Plex Sans,Segoe UI,sans-serif}a{color:var(--accent-strong)}main{max-width:980px;margin:0 auto;padding:2rem 1.25rem 4rem}.card{background:var(--surface);border:1px solid var(--border);border-radius:16px;margin:1rem 0;padding:1rem}h1,h2,h3{margin-top:0}.grid{gap:1rem;display:grid}@media (min-width:800px){.grid.cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}}input,button{font:inherit}input[type=text],input[type=number]{border:1px solid var(--border);border-radius:10px;width:100%;margin-top:.3rem;padding:.6rem .7rem}button{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:10px;padding:.7rem 1rem}button:hover{background:var(--accent-strong)}button:disabled{opacity:.55;cursor:not-allowed}.badge{border:1px solid var(--border);color:var(--muted);border-radius:999px;padding:.2rem .5rem;font-size:.85rem;display:inline-block}.error{color:var(--danger)}