/* BBMB CNF Studio — original visual system */
:root{
  --bg:#080b0f;
  --panel:#0e141b;
  --panel-2:#111a23;
  --line:#1e2a36;
  --line-soft:#16202b;
  --ink:#e8eef4;
  --ink-dim:#9fb0c0;
  --muted:#647484;
  --accent:#e8a33d;
  --accent-2:#4fd1b3;
  --hot:#e0603d;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --sans:"Inter",system-ui,-apple-system,Segoe UI,sans-serif;
  --r:10px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;background:
    radial-gradient(1200px 600px at 70% -10%, #13202b 0%, transparent 60%),
    var(--bg);
  color:var(--ink);font-family:var(--sans);
  -webkit-font-smoothing:antialiased;
}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
.muted{color:var(--muted)}

/* top bar */
.topbar{
  display:flex;align-items:center;gap:24px;
  padding:14px 22px;border-bottom:1px solid var(--line);
  background:rgba(8,11,15,.86);backdrop-filter:blur(8px);
  position:sticky;top:0;z-index:20;
}
.brand{display:flex;align-items:center;gap:10px;color:var(--accent)}
.brand-text{font-weight:800;letter-spacing:.14em;font-size:12px;color:var(--ink)}
.brand-text em{color:var(--muted);font-style:normal;margin:0 2px}
.topnav{display:flex;gap:18px;margin-left:8px}
.topnav a{color:var(--ink-dim);text-decoration:none;font-size:13px;font-weight:500;padding:6px 2px;border-bottom:1px solid transparent}
.topnav a:hover{color:var(--ink)}
.topnav a[aria-current]{color:var(--ink);border-bottom-color:var(--accent)}
.session{margin-left:auto;display:flex;align-items:center;gap:8px;font-size:12px;color:var(--ink-dim);letter-spacing:.08em}
.dot{width:7px;height:7px;border-radius:50%;background:var(--accent-2);box-shadow:0 0 10px var(--accent-2);animation:pulse 2s infinite}
@keyframes pulse{50%{opacity:.35}}
.sep{color:var(--muted)}

/* grid */
.studio{
  display:grid;gap:14px;padding:14px;
  grid-template-columns:minmax(0,1fr) 350px;
  grid-template-rows:minmax(0,1fr) auto;
  grid-template-areas:"stage telemetry" "comments telemetry";
  max-width:1680px;margin:0 auto;
  min-height:calc(100vh - 57px - 58px);
}
.pane{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);position:relative;overflow:hidden}
.stage{grid-area:stage;display:flex;flex-direction:column}
.telemetry{grid-area:telemetry;display:flex;flex-direction:column;max-height:calc(100vh - 57px - 58px - 28px)}
.comments{grid-area:comments;display:flex;flex-direction:column}

/* pane head */
.pane-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding:16px 18px 12px}
.pane-head.compact{align-items:center;padding-bottom:8px}
.eyebrow{margin:0 0 4px;font-size:10px;letter-spacing:.22em;text-transform:uppercase;color:var(--accent);font-weight:700}
h1{margin:0;font-size:20px;letter-spacing:-.01em;font-weight:700}
h2{margin:0;font-size:13px;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-dim);font-weight:700}
.badges{display:flex;gap:6px;flex-wrap:wrap;justify-content:flex-end}
.badge{font-family:var(--mono);font-size:10px;letter-spacing:.08em;padding:4px 8px;border:1px solid var(--line);border-radius:999px;color:var(--ink-dim);white-space:nowrap}
.badge-sim{color:var(--accent);border-color:#3a2c16;background:#1a1409}
.badge-grade{color:var(--accent-2);border-color:#173a33;background:#0a1a17}
.badge-grade small{opacity:.65;font-size:9px}

/* canvas */
.canvas-wrap{position:relative;flex:1;min-height:340px;margin:0 14px;border:1px solid var(--line-soft);border-radius:8px;overflow:hidden;background:
  linear-gradient(var(--line-soft) 1px,transparent 1px) 0 0/100% 44px,
  linear-gradient(90deg,var(--line-soft) 1px,transparent 1px) 0 0/44px 100%,
  radial-gradient(80% 70% at 50% 40%, #0f1a22 0%, #0a1116 70%)}
#stage{display:block;width:100%;height:100%}
.hud{position:absolute;top:10px;font-size:10px;line-height:1.7;color:var(--ink-dim);letter-spacing:.06em;pointer-events:none}
.hud-tl{left:12px}.hud-tr{right:12px;text-align:right}
.hud .k{color:var(--muted)}
.scanline{position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(0deg,rgba(255,255,255,.022) 0 1px,transparent 1px 3px);
  mix-blend-mode:overlay}
.stage-tag{position:absolute;left:12px;bottom:10px;font-size:9px;letter-spacing:.16em;color:var(--muted)}

/* controls */
.controls{display:flex;gap:8px;flex-wrap:wrap;padding:12px 14px 14px}
.ctl{
  font-family:var(--sans);font-size:12px;font-weight:600;color:var(--ink-dim);
  background:var(--panel-2);border:1px solid var(--line);border-radius:8px;
  padding:9px 12px;cursor:pointer;transition:.15s;
}
.ctl:hover{color:var(--ink);border-color:#2b3d4e}
.ctl[aria-pressed="true"]{color:#0a0d10;background:var(--accent);border-color:var(--accent)}
.ctl-ghost{background:transparent;color:var(--muted)}
.ctl-ghost:hover{color:var(--ink)}

/* metrics */
.metrics{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line-soft);margin:0 14px;border:1px solid var(--line-soft);border-radius:8px;overflow:hidden}
.metric{background:var(--panel);padding:10px 12px 8px}
.metric .m-name{font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);display:flex;justify-content:space-between;gap:6px}
.metric .m-val{font-family:var(--mono);font-size:22px;font-weight:700;letter-spacing:-.02em;margin-top:4px}
.metric .m-val small{font-size:11px;color:var(--muted);font-weight:500;margin-left:3px}
.metric canvas{display:block;width:100%;height:26px;margin-top:6px}
.metric.up .m-val{color:var(--accent)}
.metric.hot .m-val{color:var(--hot)}

/* timeline */
.tl-head{display:flex;align-items:center;justify-content:space-between;padding:14px 16px 8px}
.tl-head h3{margin:0;font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-dim)}
.timeline{list-style:none;margin:0;padding:0 10px 10px;overflow-y:auto;flex:1;min-height:0}
.timeline li{
  display:flex;gap:10px;align-items:baseline;
  padding:8px 8px;border-left:2px solid var(--line);margin-bottom:2px;cursor:pointer;
  font-size:12px;color:var(--ink-dim);border-radius:0 6px 6px 0;
}
.timeline li:hover{background:var(--panel-2);color:var(--ink)}
.timeline li.hit{border-left-color:var(--accent)}
.timeline li .t{font-family:var(--mono);font-size:10px;color:var(--muted);white-space:nowrap}
.timeline li .e{color:var(--ink)}
.timeline li.empty{cursor:default;border-left-color:var(--line-soft);color:var(--muted);font-style:italic}
.timeline li.empty:hover{background:none;color:var(--muted)}

/* comments */
.comments .comment-list{flex:1;overflow-y:auto;padding:0 16px;max-height:190px}
.comment{padding:9px 0;border-bottom:1px solid var(--line-soft)}
.comment:last-child{border-bottom:0}
.c-meta{display:flex;align-items:center;gap:10px;font-size:11px}
.c-meta b{color:var(--ink)}
.tag{color:var(--accent-2);font-size:10px}
.comment p{margin:4px 0 0;font-size:13px;color:var(--ink-dim);line-height:1.5}
.comment-form{display:flex;gap:8px;padding:10px 12px;border-top:1px solid var(--line-soft);background:var(--panel-2)}
.comment-form input,.comment-form select{
  font-family:var(--sans);font-size:13px;background:var(--panel);color:var(--ink);
  border:1px solid var(--line);border-radius:7px;padding:9px 10px;
}
.comment-form input{flex:1;min-width:0}
.comment-form select{max-width:190px;color:var(--ink-dim)}
.comment-form button{
  font-family:var(--sans);font-weight:700;font-size:12px;
  background:var(--accent-2);color:#04100d;border:0;border-radius:7px;padding:0 16px;cursor:pointer;
}
.comment-form button:hover{filter:brightness(1.08)}

/* footer */
.foot{max-width:1680px;margin:0 auto;padding:6px 20px 18px}
.foot p{margin:0;font-size:11px;line-height:1.6;color:var(--muted)}
.foot strong{color:var(--ink-dim)}

/* responsive */
@media (max-width:1180px){
  .studio{grid-template-columns:1fr;grid-template-areas:"stage" "telemetry" "comments";grid-template-rows:auto auto auto}
  .telemetry{max-height:none}
  .comments .comment-list{max-height:220px}
}
@media (max-width:620px){
  .topnav{display:none}
  .session #session-label,.session .sep{display:none}
  .metrics{grid-template-columns:1fr}
  .pane-head{flex-direction:column}
  .badges{justify-content:flex-start}
}