:root {
  --bg: #0e1116;
  --bg-elev: #161b22;
  --bg-elev2: #1c232d;
  --border: #2a313c;
  --border-strong: #3a4452;
  --text: #d7dee8;
  --muted: #8b97a7;
  --accent: #58a6ff;
  --accent-dim: #1f6feb;
  --bar: #2f81f7;
  --bar-sel: #f0a020;
  --ok: #3fb950;
  --warn: #d29922;
  --err: #f85149;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 13px/1.45 var(--sans);
  display: flex; flex-direction: column;
}

/* ---- topbar ---- */
.topbar {
  display: flex; align-items: center; gap: 14px;
  padding: 8px 14px; background: var(--bg-elev);
  border-bottom: 1px solid var(--border); flex-wrap: wrap;
}
.brand { font-weight: 700; letter-spacing: .3px; color: #fff; }
.source, .time { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.time { margin-left: auto; }

/* ---- controls / inputs ---- */
.btn, select, input {
  background: var(--bg-elev2); color: var(--text);
  border: 1px solid var(--border); border-radius: 6px;
  padding: 5px 9px; font: inherit; outline: none;
}
.btn { cursor: pointer; user-select: none; }
.btn:hover { border-color: var(--border-strong); }
.btn.active { background: var(--accent-dim); border-color: var(--accent); color: #fff; }
.btn.ghost { background: transparent; }
.btn.sm { padding: 2px 7px; font-size: 12px; }
input:focus, select:focus { border-color: var(--accent); }
.muted { color: var(--muted); }
label.inl { color: var(--muted); font-size: 12px; }

/* ---- histogram ---- */
.hist-wrap { padding: 8px 14px 4px; background: var(--bg); border-bottom: 1px solid var(--border); }
.hist-head { display: flex; justify-content: space-between; font-size: 12px; margin-bottom: 4px; }
.histogram {
  position: relative; height: 92px; display: flex; align-items: flex-end;
  gap: 1px; user-select: none; cursor: crosshair;
}
.hbar { flex: 1 1 0; background: var(--bar); min-height: 1px; border-radius: 2px 2px 0 0; transition: background .1s; }
.hbar:hover { background: var(--accent); }
.hbar.sel { background: var(--bar-sel); }
.hist-brush {
  position: absolute; top: 0; bottom: 0; background: rgba(240,160,32,.16);
  border-left: 1px solid var(--bar-sel); border-right: 1px solid var(--bar-sel); pointer-events: none;
}
.htip {
  position: absolute; transform: translate(-50%, -100%); background: #000; color: #fff;
  padding: 3px 7px; border-radius: 5px; font-size: 11px; white-space: nowrap; pointer-events: none;
  border: 1px solid var(--border-strong); z-index: 5;
}

/* ---- filters / field picker ---- */
.controls { display: flex; gap: 10px; padding: 8px 14px; background: var(--bg-elev);
  border-bottom: 1px solid var(--border); flex-wrap: wrap; align-items: center; }
.filter-bar { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; flex: 1; min-width: 300px; }
.chip {
  display: inline-flex; align-items: center; gap: 6px; background: var(--bg-elev2);
  border: 1px solid var(--border-strong); border-radius: 14px; padding: 2px 6px 2px 10px; font-size: 12px;
}
.chip code { font-family: var(--mono); color: var(--accent); }
.chip .x { cursor: pointer; color: var(--muted); padding: 0 3px; }
.chip .x:hover { color: var(--err); }
.field-picker { position: relative; }
.fp-menu {
  position: absolute; right: 0; top: 110%; z-index: 20; background: var(--bg-elev2);
  border: 1px solid var(--border-strong); border-radius: 8px; padding: 8px; width: 320px;
  max-height: 60vh; overflow: auto; box-shadow: 0 8px 28px rgba(0,0,0,.5);
}
.fp-menu .row { display: flex; align-items: center; gap: 8px; padding: 3px 4px; border-radius: 5px; cursor: pointer; }
.fp-menu .row:hover { background: var(--bg-elev); }
.fp-menu .row code { font-family: var(--mono); font-size: 12px; }
.fp-menu .row .cnt { margin-left: auto; color: var(--muted); font-size: 11px; }

/* add-filter popover */
.af { display: flex; gap: 6px; align-items: center; }
.af select, .af input { padding: 3px 6px; }
.af input { width: 150px; }

/* ---- split: list + detail ---- */
.split { flex: 1; display: flex; min-height: 0; }
.list-pane { flex: 1 1 58%; display: flex; flex-direction: column; min-width: 0; border-right: 1px solid var(--border); }
.detail-pane { flex: 1 1 42%; overflow: auto; background: var(--bg); padding: 10px 12px; }
.list { flex: 1; overflow: auto; }

/* ---- list table ---- */
table.logs { width: 100%; border-collapse: collapse; font-family: var(--mono); font-size: 12px; }
table.logs th {
  position: sticky; top: 0; background: var(--bg-elev); text-align: left; font-weight: 600;
  color: var(--muted); padding: 6px 8px; border-bottom: 1px solid var(--border); white-space: nowrap; z-index: 1;
}
table.logs td { padding: 5px 8px; border-bottom: 1px solid var(--border); vertical-align: top;
  max-width: 420px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
table.logs tr { cursor: pointer; }
table.logs tr:hover td { background: var(--bg-elev); }
table.logs tr.sel td { background: #1d2a3a; }
.ts { color: var(--muted); white-space: nowrap; }
.lvl { font-weight: 700; }
.lvl-error, .lvl-err, .lvl-fatal, .lvl-critical { color: var(--err); }
.lvl-warn, .lvl-warning { color: var(--warn); }
.lvl-info { color: var(--ok); }
.lvl-debug, .lvl-trace { color: var(--muted); }

.pager { display: flex; align-items: center; gap: 10px; padding: 6px 12px;
  border-top: 1px solid var(--border); background: var(--bg-elev); font-size: 12px; }

/* ---- json tree ---- */
.detail-head { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; flex-wrap: wrap; }
.jtree { font-family: var(--mono); font-size: 12.5px; line-height: 1.55; }
.jnode { padding-left: 14px; position: relative; }
.jtoggle { position: absolute; left: 0; cursor: pointer; color: var(--muted); width: 12px; text-align: center; user-select: none; }
.jtoggle:hover { color: var(--text); }
.jkey { color: var(--accent); }
.jstr { color: #7ee787; white-space: pre-wrap; word-break: break-word; }
.jnum { color: #d2a8ff; }
.jbool { color: #ffa657; }
.jnull { color: var(--muted); font-style: italic; }
.jpunct { color: var(--muted); }
.jcollapsed > .jchildren { display: none; }
.jsummary { color: var(--muted); cursor: pointer; }
.jsummary:hover { color: var(--text); }
.jfilterbtn { color: var(--muted); cursor: pointer; opacity: 0; margin-left: 6px; }
.jnode:hover > .jline .jfilterbtn { opacity: 1; }
.jfilterbtn:hover { color: var(--accent); }

/* ---- banner ---- */
.banner { position: fixed; bottom: 14px; left: 50%; transform: translateX(-50%);
  background: var(--err); color: #fff; padding: 8px 16px; border-radius: 8px; z-index: 50;
  box-shadow: 0 6px 24px rgba(0,0,0,.5); max-width: 80vw; }
.banner.info { background: var(--accent-dim); }

.empty { padding: 30px; text-align: center; color: var(--muted); }
.who { margin-left: 10px; display: inline-flex; align-items: center; gap: 8px; }
.btn.live.active { background: #1a3a1a; border-color: var(--ok); color: var(--ok); animation: livepulse 1.4s ease-in-out infinite; }
@keyframes livepulse { 0%, 100% { opacity: 1; } 50% { opacity: .55; } }

/* ---- login gate ---- */
.gate { position: fixed; inset: 0; z-index: 100; background: var(--bg);
  display: grid; place-items: center; padding: 20px; }
.gate-card { width: min(380px, 94vw); background: var(--bg-elev); border: 1px solid var(--border);
  border-radius: 12px; box-shadow: 0 20px 60px rgba(0,0,0,.55); padding: 28px 26px;
  display: flex; flex-direction: column; gap: 14px; }
.gate-brand { font-size: 20px; font-weight: 700; color: #fff; display: flex; align-items: center; gap: 8px; }
.gate-brand .spark { color: var(--accent); }
.gate-sub { color: var(--muted); font-size: 13px; margin: -6px 0 10px; }
.gate-card label { display: flex; flex-direction: column; gap: 6px; font-size: 12px; color: var(--muted); }
.gate-card input { font-size: 14px; padding: 10px 12px; }
.gate-err { color: var(--err); font-size: 13px; margin: 0; }
.gate-btn { background: var(--accent-dim); border-color: var(--accent); color: #fff; padding: 10px; font-weight: 600; }
.gate-btn:disabled { opacity: .6; cursor: default; }