body{font-family:system-ui,Segoe UI,Roboto,Arial,sans-serif;margin:0;background:#f6f7fb;color:#111}
.topbar{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;background:#111;color:#fff}
.brand{font-weight:700}
.nav a{color:#fff;text-decoration:none;margin-left:14px;font-size:14px}
.container{padding:18px}
.card{background:#fff;border-radius:10px;padding:18px;box-shadow:0 1px 3px rgba(0,0,0,.08);max-width:980px;margin:0 auto}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.span2{grid-column:1 / span 2}
.row{margin-top:14px;display:flex;gap:10px;flex-wrap:wrap}
.stack{display:flex;flex-direction:column;gap:10px;margin-top:10px}
label{font-weight:600;font-size:13px}
input,textarea,select{padding:10px;border:1px solid #d9dbe7;border-radius:8px;font-size:14px;background:#fff}
textarea{resize:vertical}
.btn{display:inline-block;background:#2563eb;color:#fff;text-decoration:none;border-radius:8px;padding:10px 12px;font-weight:700;border:0;cursor:pointer}
.btn.secondary{background:#e5e7eb;color:#111}
.notice{background:#f0f4ff;border:1px solid #c7d2fe;padding:10px;border-radius:8px;margin:10px 0}
.banner{padding:12px;border-radius:10px;border:1px solid transparent;margin:12px 0}
.banner-warn{background:#fff7ed;border-color:#fed7aa}
.banner-err{background:#fef2f2;border-color:#fecaca}
.muted{color:#6b7280}
.small{font-size:12px}
.footer{padding:20px 0;text-align:center;font-size:12px}
.hr{margin:16px 0}
.list{display:flex;flex-direction:column;gap:8px;margin-top:10px}
.list-item{display:block;padding:10px;border:1px solid #e5e7eb;border-radius:8px;text-decoration:none;color:#111;background:#fafafa}
.result{margin-top:16px}
.pre{white-space:pre-wrap;background:#0b1020;color:#e5e7eb;padding:12px;border-radius:10px;max-height:420px;overflow:auto}
.summary{border:1px solid #e5e7eb;border-radius:12px;padding:12px;background:#fff}
.summary-top{font-size:13px;margin-bottom:8px;color:#374151}
.summary-body{white-space:pre-wrap}
@media(max-width:900px){.grid{grid-template-columns:1fr}.span2{grid-column:auto}}