:root{
  --bg:#0b0f14;
  --card:#121925;
  --text:#e6edf3;
  --muted:#9aa7b4;
  --accent:#4ea1ff;
  --border:#223047;
  --danger:#ff6b6b;
}
*{box-sizing:border-box}
body{
  margin:0;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,sans-serif;
  background:var(--bg);
  color:var(--text);
}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1100px;margin:0 auto;padding:16px}
.topbar{position:sticky;top:0;background:#0b0f14cc;backdrop-filter:blur(8px);border-bottom:1px solid var(--border)}
.topbar__inner{display:flex;align-items:center;gap:12px}
.brand{font-weight:700;color:var(--text)}
.navbtn{margin-left:auto;background:transparent;color:var(--text);border:1px solid var(--border);border-radius:10px;padding:8px 10px;display:none}
.nav{margin-left:auto;display:flex;gap:12px;align-items:center}
.nav a{padding:8px 10px;border-radius:10px}
.nav a:hover{background:var(--card)}
.inline{display:inline}
.linkbtn{background:transparent;border:none;color:var(--accent);cursor:pointer;padding:8px 10px}
main{padding-top:14px}

h1{font-size:1.6rem;margin:0 0 14px}
h2{font-size:1.1rem;margin:0 0 10px}
h3{font-size:1rem;margin:14px 0 8px}

.card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:14px}
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.row{display:flex;gap:10px;align-items:center;margin-top:10px}
.row.wrap{flex-wrap:wrap}
.btn,button{background:var(--accent);color:#06101a;border:none;border-radius:12px;padding:10px 12px;cursor:pointer;font-weight:600}
button.secondary{background:transparent;border:1px solid var(--border);color:var(--text)}
button:hover,.btn:hover{filter:brightness(1.05)}

.form label{display:block;margin:10px 0}
.form span{display:block;color:var(--muted);font-size:.9rem;margin-bottom:6px}
input,select,textarea{
  width:100%;
  background:#0b0f14;
  border:1px solid var(--border);
  color:var(--text);
  padding:10px 12px;
  border-radius:12px;
}
textarea{resize:vertical}

.list{list-style:none;margin:0;padding:0}
.list li{padding:10px 0;border-top:1px solid var(--border)}
.list li:first-child{border-top:none}

.alert{border:1px solid var(--border);border-radius:14px;padding:10px 12px;margin:0 0 12px}
.alert--error{border-color:#5b2830;color:#ffd6d6;background:#1a0f12}
.alert--info{border-color:#2a3d59;background:#0f1621}

.small{font-size:.85rem}
.muted{color:var(--muted)}
.tag{display:inline-block;font-size:.75rem;padding:2px 8px;border:1px solid var(--border);border-radius:999px;color:var(--muted);margin-left:8px}
.code{white-space:pre-wrap;word-break:break-word;background:#0b0f14;border:1px solid var(--border);padding:10px;border-radius:14px}

.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
.chip{border:1px solid var(--border);border-radius:999px;padding:6px 10px;background:#0b0f14}
.chip input{width:auto;margin-right:6px}

@media (max-width: 860px){
  .grid{grid-template-columns:1fr}
  .grid2{grid-template-columns:1fr}
  .navbtn{display:block}
  .nav{display:none;position:absolute;right:16px;top:58px;flex-direction:column;align-items:stretch;background:var(--card);border:1px solid var(--border);border-radius:16px;padding:10px;min-width:220px}
  .nav.open{display:flex}
  .topbar__inner{position:relative}
}