:root{
  --bg: #0b0b0b;
  --fg: #eaeaea;
  --muted: #9aa0a6;
  --accent: #8b5cf6;
  --card: #141414;
  --border: #2a2a2a;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--fg);font:16px/1.5 system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,sans-serif;text-rendering:optimizeLegibility}

.site-header,.site-footer{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;border-bottom:1px solid var(--border);background:linear-gradient(0deg,var(--bg),#0f0f10)}
.site-footer{border-top:1px solid var(--border);border-bottom:none;margin-top:40px}
.brand h1{margin:0;font-size:20px}
.tag{margin:2px 0 0;color:var(--muted);font-size:12px}
.main-nav .support-btn{background:transparent;border:1px solid var(--border);color:var(--fg);padding:6px 10px;border-radius:999px;cursor:pointer}
.main-nav .support-btn:hover{border-color:var(--accent)}

.hero{padding:40px 16px;max-width:960px;margin:0 auto}
.hero h2{font-size:28px;margin:0 0 6px}
.hero .sub{color:var(--muted);margin:0 0 18px}
.cta-row{display:flex;gap:12px;flex-wrap:wrap}
.cta{display:inline-block;background:var(--accent);color:white;text-decoration:none;padding:10px 14px;border-radius:12px;border:0;cursor:pointer}
.cta:hover{opacity:.9}

.panel{max-width:960px;margin:18px auto;padding:0 16px}
.card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:16px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px}
.row{display:flex;flex-direction:column;gap:6px;margin:10px 0}
label{font-size:14px;color:var(--muted)}
input,select,textarea{background:#0e0e10;border:1px solid var(--border);color:var(--fg);padding:10px;border-radius:10px}
input:focus,select:focus,textarea:focus{outline:2px solid var(--accent);border-color:transparent}
legend{color:var(--fg);font-weight:600}
.log{background:#0c0c0c;border:1px dashed var(--border);border-radius:10px;padding:12px;min-height:60px;max-height:240px;overflow:auto;margin-top:12px}
.tiny{font-size:12px;color:var(--muted)}
dialog{border:none;border-radius:16px;padding:0;width:min(560px,92vw);background:var(--card);color:var(--fg)}
dialog form{padding:16px}
.dialog-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:12px}
.dialog-actions button{padding:8px 12px;border-radius:10px;border:1px solid var(--border);background:#111;color:var(--fg);cursor:pointer}
.dialog-actions .cta{background:var(--accent);border-color:transparent}