:root {
  --bg: #0a0d13;
  --panel: #10141d;
  --panel-2: #141a24;
  --line: #202836;
  --ink: #d7dee8;
  --dim: #7a869a;
  --amber: #ffb454;
  --green: #6bd968;
  --red: #ff6b6b;
  --blue: #6ba9ff;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(107,169,255,.06), transparent),
    var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

code { font-family: var(--mono); }

/* ---------- top bar ---------- */
.topbar {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 12px 20px;
  border-bottom: 1px solid var(--line);
  background: rgba(10,13,19,.85);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; letter-spacing: .3px; }
.glyph {
  width: 14px; height: 14px; border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, var(--amber), #7a4a12 70%, #000 100%);
  box-shadow: 0 0 12px rgba(255,180,84,.5);
  animation: pulse 2.6s ease-in-out infinite;
}
@keyframes pulse { 0%,100%{ box-shadow:0 0 6px rgba(255,180,84,.35);} 50%{ box-shadow:0 0 16px rgba(255,180,84,.7);} }
.wordmark { font-family: var(--mono); }
.dotio { color: var(--dim); font-family: var(--mono); font-weight: 500; }

.tabs { display: flex; gap: 4px; }
.tab {
  background: transparent; border: 1px solid transparent; color: var(--dim);
  padding: 6px 12px; border-radius: 7px; cursor: pointer; font-size: 13px;
  font-family: var(--sans);
}
.tab:hover { color: var(--ink); }
.tab.is-active { color: var(--ink); background: var(--panel-2); border-color: var(--line); }

.env { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.pill { font-family: var(--mono); font-size: 11px; padding: 3px 8px; border-radius: 20px; border: 1px solid var(--line); color: var(--dim); }
.pill-prod { color: var(--green); border-color: rgba(107,217,104,.35); }
.clock { font-family: var(--mono); font-size: 12px; color: var(--dim); }

/* ---------- grid ---------- */
.grid { flex: 1; display: grid; grid-template-columns: 280px 1fr; min-height: 0; }

/* ---------- incident rail ---------- */
.rail { border-right: 1px solid var(--line); display: flex; flex-direction: column; background: var(--panel); }
.rail-head {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 16px; font-size: 12px; text-transform: uppercase; letter-spacing: .8px; color: var(--dim);
  border-bottom: 1px solid var(--line);
}
.count { background: var(--panel-2); border: 1px solid var(--line); border-radius: 12px; padding: 1px 8px; color: var(--ink); }
.incidents { list-style: none; margin: 0; padding: 6px; overflow-y: auto; flex: 1; }
.inc {
  padding: 10px 12px; border-radius: 8px; cursor: pointer; border: 1px solid transparent;
  display: flex; flex-direction: column; gap: 4px;
}
.inc:hover { background: var(--panel-2); }
.inc.is-active { background: var(--panel-2); border-color: var(--line); }
.inc-top { display: flex; align-items: center; gap: 8px; }
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--red); box-shadow: 0 0 8px var(--red); }
.inc-title { font-size: 13px; font-weight: 600; }
.inc-sub { font-family: var(--mono); font-size: 11px; color: var(--dim); }

.rail-foot { border-top: 1px solid var(--line); padding: 14px 16px; }
.toggle { display: flex; align-items: center; gap: 8px; cursor: pointer; font-size: 12px; }
.toggle input { display: none; }
.toggle span { width: 30px; height: 16px; border-radius: 10px; background: var(--panel-2); border: 1px solid var(--line); position: relative; transition: .2s; }
.toggle span::after { content: ""; position: absolute; top: 1px; left: 1px; width: 12px; height: 12px; border-radius: 50%; background: var(--dim); transition: .2s; }
.toggle input:checked + span { background: rgba(107,217,104,.2); border-color: var(--green); }
.toggle input:checked + span::after { transform: translateX(14px); background: var(--green); }
.toggle code { color: var(--dim); font-size: 11px; }
.hint { margin: 8px 0 0; font-family: var(--mono); font-size: 11px; color: var(--dim); }

/* ---------- stage / views ---------- */
.stage { padding: 24px 28px; overflow-y: auto; }
.view { display: none; max-width: 860px; }
.view.is-active { display: block; }

.incident-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 20px; }
.sig { display: flex; align-items: center; gap: 12px; }
.badge { font-family: var(--mono); font-size: 11px; padding: 3px 8px; border-radius: 6px; letter-spacing: .5px; }
.badge-segv { color: var(--red); background: rgba(255,107,107,.12); border: 1px solid rgba(255,107,107,.35); }
h1 { font-size: 22px; margin: 0; font-weight: 650; }
.meta { font-family: var(--mono); font-size: 12px; color: var(--dim); margin: 8px 0 0; }
.stat { text-align: right; }
.stat-num { display: block; font-family: var(--mono); font-size: 28px; color: var(--amber); line-height: 1; }
.stat-lbl { font-size: 11px; color: var(--dim); text-transform: uppercase; letter-spacing: .6px; }

.trace-controls { display: flex; align-items: center; gap: 14px; margin: 24px 0 8px; }
.run {
  font-family: var(--mono); font-size: 13px; cursor: pointer;
  background: linear-gradient(180deg, #ffc67a, var(--amber)); color: #241300;
  border: none; padding: 9px 16px; border-radius: 8px; font-weight: 700;
}
.run:hover { filter: brightness(1.06); }
.run:disabled { opacity: .5; cursor: default; }
.run-note { font-family: var(--mono); font-size: 11px; color: var(--dim); }

/* ---------- trace graph ---------- */
.trace { list-style: none; margin: 20px 0 0; padding: 0; }
.node {
  position: relative; padding: 0 0 6px 34px; opacity: 0; transform: translateY(6px);
  transition: opacity .4s ease, transform .4s ease;
}
.node.show { opacity: 1; transform: none; }
.node::before { /* the rail */
  content: ""; position: absolute; left: 11px; top: 6px; bottom: -6px; width: 2px; background: var(--line);
}
.node:last-child::before { display: none; }
.node .pin {
  position: absolute; left: 4px; top: 4px; width: 16px; height: 16px; border-radius: 50%;
  background: var(--panel); border: 2px solid var(--line); z-index: 1;
}
.node.show .pin { border-color: var(--blue); box-shadow: 0 0 10px rgba(107,169,255,.4); }
.node.terminal.show .pin { border-color: var(--red); box-shadow: 0 0 12px rgba(255,107,107,.5); }

.card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 10px;
  padding: 12px 14px; margin: 0 0 8px; cursor: pointer;
}
.card:hover { border-color: #2b3648; }
.card-top { display: flex; align-items: center; gap: 10px; }
.kind { font-family: var(--mono); font-size: 10px; text-transform: uppercase; letter-spacing: .7px; color: var(--dim); }
.card-title { font-family: var(--mono); font-size: 13px; color: var(--ink); }
.card-title .hl { color: var(--amber); }
.chev { margin-left: auto; color: var(--dim); transition: transform .2s; }
.card.open .chev { transform: rotate(90deg); }
.card-body { display: none; margin-top: 10px; border-top: 1px solid var(--line); padding-top: 10px; }
.card.open .card-body { display: block; }
.kv { display: grid; grid-template-columns: 130px 1fr; gap: 4px 12px; font-family: var(--mono); font-size: 12px; }
.kv span { color: var(--dim); }
.kv code { color: var(--ink); }
.diff { font-family: var(--mono); font-size: 12px; background: #0c1017; border: 1px solid var(--line); border-radius: 8px; padding: 10px; margin-top: 8px; overflow-x: auto; }
.diff .del { color: var(--red); } .diff .add { color: var(--green); } .diff .ctx { color: var(--dim); }
.finding-tag { display: inline-block; margin-top: 8px; font-family: var(--mono); font-size: 11px; color: var(--red); background: rgba(255,107,107,.1); border: 1px solid rgba(255,107,107,.3); border-radius: 6px; padding: 3px 8px; }

.to-findings { margin-top: 18px; }
.to-findings button {
  font-family: var(--mono); font-size: 12px; background: var(--panel-2); color: var(--ink);
  border: 1px solid var(--line); border-radius: 8px; padding: 8px 14px; cursor: pointer;
}
.to-findings button:hover { border-color: var(--red); color: var(--red); }

/* ---------- findings ---------- */
.lede, .sub { color: var(--dim); }
.sub { font-size: 14px; font-weight: 400; }
.lede { max-width: 640px; margin: 6px 0 18px; }
table.findings { width: 100%; border-collapse: collapse; font-size: 13px; }
table.findings th, table.findings td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
table.findings th { color: var(--dim); font-weight: 500; font-size: 11px; text-transform: uppercase; letter-spacing: .6px; }
table.findings code { font-size: 12px; color: var(--amber); }
.fnote { color: var(--dim); font-size: 11px; margin-top: 2px; }
.sev { font-family: var(--mono); font-size: 11px; padding: 2px 7px; border-radius: 5px; }
.sev-crit { color: var(--red); background: rgba(255,107,107,.12); border: 1px solid rgba(255,107,107,.3); }
.sev-high { color: var(--amber); background: rgba(255,180,84,.12); border: 1px solid rgba(255,180,84,.3); }

/* ---------- provenance ---------- */
.prov-card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 6px 16px; max-width: 560px; margin: 16px 0; }
.prov-row { display: flex; justify-content: space-between; padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 13px; }
.prov-row:last-child { border-bottom: none; }
.prov-row span { color: var(--dim); }
.thompson { border-left: 2px solid var(--amber); margin: 20px 0; padding: 4px 0 4px 16px; color: var(--ink); font-style: italic; max-width: 560px; }
.thompson cite { display: block; margin-top: 8px; font-size: 12px; color: var(--dim); font-style: normal; }

/* ---------- footer ---------- */
.foot { border-top: 1px solid var(--line); padding: 12px 20px; display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.tagline { font-family: var(--mono); font-size: 12px; color: var(--amber); }
.foot-eggs { font-family: var(--mono); font-size: 11px; color: var(--dim); }
.foot-eggs code { color: var(--ink); }

/* ---------- 404 ---------- */
.segv-body { display: grid; place-items: center; }
.segv { text-align: center; padding: 60px 20px; }
.segv-art { font-family: var(--mono); font-size: 16px; text-align: left; display: inline-block; margin: 0 auto 24px; }
.segv-art .dim { color: var(--dim); } .segv-art .you { color: var(--amber); } .segv-art .err { color: var(--red); }
.segv-msg { font-size: 20px; margin: 0; }
.segv-sub { color: var(--dim); font-family: var(--mono); margin: 6px 0 24px; }
.segv-back { color: var(--blue); text-decoration: none; font-family: var(--mono); font-size: 13px; }
.segv-back:hover { text-decoration: underline; }

@media (max-width: 760px) {
  .grid { grid-template-columns: 1fr; }
  .rail { display: none; }
}