:root{
  --bg:#0c0d10;
  --panel:#12141a;
  --text:#e8e8ea;
  --muted:#9aa0a6;
  --line:#20242d;
  --btn:#1f2430;
}
*{ box-sizing:border-box; }
html,body{ margin:0; padding:0; background:var(--bg); color:var(--text); font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial; }
a{ color:var(--text); text-decoration:none; opacity:0.85; }
a:hover{ opacity:1; }
.container{ max-width:900px; margin:0 auto; padding:24px; }
.header{ display:flex; align-items:center; justify-content:space-between; margin-bottom:16px; }
.nav{ display:flex; gap:14px; align-items:center; }
.panel{ background:var(--panel); border:1px solid var(--line); border-radius:12px; padding:16px; margin:16px 0; }
.list{ display:flex; flex-direction:column; gap:10px; }
.card{ border:1px solid var(--line); border-radius:10px; padding:12px; background:#0f1116; }
.card-title{ font-weight:600; margin-bottom:6px; }
.card-body{ white-space:pre-wrap; color:var(--text); opacity:0.92; }
.card-meta{ margin-top:10px; color:var(--muted); font-size:12px; }
.row{ display:flex; gap:10px; align-items:center; }
.stack{ display:flex; flex-direction:column; gap:10px; }
input,textarea{ background:#0f1116; border:1px solid var(--line); color:var(--text); border-radius:10px; padding:10px; }
button{ background:var(--btn); border:1px solid var(--line); color:var(--text); border-radius:10px; padding:10px 12px; cursor:pointer; }
button:hover{ filter:brightness(1.1); }
.msg{ margin-top:10px; color:var(--muted); }
.divider{ height:1px; background:var(--line); margin:16px 0; }
.link-btn{ background:transparent; border:1px solid var(--line); padding:8px 10px; }