:root{--ink:#0f172a;--muted:#475569;--line:#e2e8f0;--bg:#f8fafc;--brand:#0ea5e9}
*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--ink)}
header{padding:16px 24px;background:var(--brand);color:#fff}
main{max-width:1100px;margin:0 auto;padding:24px;display:grid;gap:16px}
.panel{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px}
label{display:block;font-size:14px;color:var(--muted)}select,input,textarea{width:100%;padding:10px;border:1px solid #cbd5e1;border-radius:8px;font-size:14px;color:var(--ink);background:#fff}
textarea#output{min-height:180px}.grid{display:grid;gap:12px}.grid.two{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}.grid.three{grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:12px}button,a#openMeshy{background:var(--brand);color:#fff;border:0;padding:10px 14px;border-radius:10px;cursor:pointer;text-decoration:none}
button:hover,a#openMeshy:hover{filter:brightness(.95)}footer{text-align:center;padding:16px;color:var(--muted)}