:root{color-scheme:dark;--bg:#0f172a;--panel:#111827;--panel2:#1f2937;--text:#e5e7eb;--muted:#94a3b8;--accent:#22c55e;--border:#334155}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,sans-serif;background:linear-gradient(180deg,#020617,var(--bg));color:var(--text)}
.wrap{max-width:900px;margin:0 auto;padding:32px 16px 64px}
.hero{margin-bottom:24px}
h1{margin:0 0 8px;font-size:2rem}
.sub{color:var(--muted);line-height:1.5}
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.card{background:rgba(17,24,39,.92);border:1px solid var(--border);border-radius:16px;padding:18px;box-shadow:0 12px 32px rgba(0,0,0,.3)}
label{display:block;margin-bottom:8px;font-weight:600}
textarea,select,input{width:100%;padding:12px 14px;border-radius:12px;border:1px solid var(--border);background:var(--panel2);color:var(--text);font:inherit}
textarea{min-height:180px;resize:vertical}
button{border:0;border-radius:12px;padding:12px 16px;font:inherit;font-weight:700;cursor:pointer;background:var(--accent);color:#052e16}
button[disabled]{opacity:.5;cursor:not-allowed}
button.secondary{background:#334155;color:var(--text)}
.row{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}
.status{min-height:24px;margin-top:12px;color:var(--muted)}
.status.error{color:#fecaca}
.status.ok{color:#bbf7d0}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;word-break:break-all}
.hidden{display:none}
.note{color:var(--muted);font-size:.95rem;line-height:1.5}
.warning{color:#fecaca;background:rgba(127,29,29,.25);border:1px solid rgba(248,113,113,.3);border-radius:12px;padding:10px 12px;margin-top:12px}
code{background:#0b1220;padding:2px 6px;border-radius:6px}
.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}
.card h2{margin-top:0}
.ttl-wrap{flex:1 1 220px}