/* Tokens: dark first, matching the portfolio ------------------------------------ */

:root {
  --ground: #0a0a0b;
  --surface: #141416;
  --raised: #1d1d20;
  --border: #26262a;
  --ink: #f2efe8;
  --muted: #a3a09a;
  --faint: #8a877f;
  --accent: #ff6a1f;
  --accent-soft: rgba(255, 106, 31, 0.16);
  --vote: #f5b83d;
  --down: #f2667b;
  --display: "Bricolage Grotesque", "Inter Tight", system-ui, sans-serif;
  color-scheme: dark;
}

@media (prefers-color-scheme: light) {
  :root {
    --ground: #f3f1ec;
    --surface: #ffffff;
    --raised: #ece9e3;
    --border: #e1ddd5;
    --ink: #111111;
    --muted: #5c5a55;
    --faint: #6b6862;
    --accent: #f2560a;
    --accent-soft: rgba(242, 86, 10, 0.12);
    --vote: #b7791f;
    --down: #c4242a;
    color-scheme: light;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; background: var(--ground); }
body {
  color: var(--ink);
  font: 15px/1.45 "Inter Tight", system-ui, -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
}
h1, h2, p { margin: 0; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* Shell ----------------------------------------------------------------------- */

.bar {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  padding: 24px clamp(16px, 3vw, 40px) 0;
}
h1 { font: 800 clamp(30px, 3.4vw, 44px)/1 var(--display); letter-spacing: -0.03em; }
.sub { margin-top: 8px; color: var(--muted); max-width: 52ch; }
.code-link { color: var(--ink); font-weight: 600; text-decoration-color: var(--accent); text-underline-offset: 4px; }

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  grid-template-rows: minmax(440px, 62vh) auto;
  gap: 16px;
  padding: 20px clamp(16px, 3vw, 40px) 32px;
}

/* Cluster ---------------------------------------------------------------------- */

.stage {
  position: relative;
  min-height: 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  overflow: hidden;
}
#cluster { display: block; width: 100%; height: 100%; cursor: pointer; }

.legend {
  position: absolute;
  left: 16px;
  bottom: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font-size: 12px;
}
.legend li { display: flex; align-items: center; gap: 6px; }
.sw { width: 12px; height: 12px; border-radius: 50%; border: 2px solid var(--ink); }
.sw--leader { background: var(--accent); border-color: var(--accent); }
.sw--candidate { border-color: var(--vote); border-style: dashed; }
.sw--down { border-color: var(--down); border-style: dotted; }
.dot { width: 8px; height: 8px; border-radius: 50%; }
.dot--vote { background: var(--vote); }
.dot--append { background: var(--ink); }

.menu {
  position: absolute;
  z-index: 5;
  display: flex;
  flex-direction: column;
  min-width: 190px;
  padding: 6px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--raised);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}
.menu[hidden] { display: none; }
.menu__title { padding: 6px 10px 8px; color: var(--muted); font-size: 12px; }
.menu button {
  padding: 8px 10px;
  border: 0;
  border-radius: 5px;
  background: none;
  color: var(--ink);
  font: 500 14px "Inter Tight", system-ui, sans-serif;
  text-align: left;
  cursor: pointer;
}
.menu button:hover { background: var(--surface); }
.menu button:disabled { color: var(--faint); cursor: default; background: none; }

/* Panel ---------------------------------------------------------------------- */

.panel {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: 0;
  overflow: hidden;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
}
.row { display: flex; gap: 8px; }
.panel > * { flex: none; }

.btn {
  height: 38px;
  padding: 0 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--raised);
  color: var(--ink);
  font: 600 14px "Inter Tight", system-ui, sans-serif;
  cursor: pointer;
  transition: transform 80ms, opacity 120ms;
}
.btn:active { transform: scale(0.97); }
.btn--primary { height: 44px; border-color: var(--accent); background: var(--accent); color: #0a0a0b; font-size: 15px; }
.btn--primary:hover { opacity: 0.9; }
#play { min-width: 76px; }

.segmented { flex: 1; display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; padding: 2px; border-radius: 6px; background: var(--raised); }
.segmented button {
  border: 0;
  border-radius: 4px;
  background: none;
  color: var(--muted);
  font: 600 14px "Inter Tight", system-ui, sans-serif;
  cursor: pointer;
}
.segmented button.is-on { background: var(--ground); color: var(--ink); }

.speed { display: flex; flex-direction: column; gap: 6px; color: var(--muted); font-size: 13px; }
.speed b { color: var(--ink); font-weight: 600; }
.speed input { accent-color: var(--accent); }

.stats { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; margin: 0; border-radius: 6px; overflow: hidden; background: var(--border); }
.stats div { padding: 10px 12px; background: var(--surface); }
.stats dt { color: var(--muted); font-size: 12px; }
.stats dd { margin: 2px 0 0; font: 700 22px/1.2 var(--display); font-variant-numeric: tabular-nums; }

.panel > .feed { flex: 1 1 auto; min-height: 0; }
.feed { margin: 0; padding: 0; list-style: none; overflow-y: auto; font-size: 13px; }
.feed li { display: grid; grid-template-columns: 52px 1fr; gap: 8px; padding: 7px 0; border-top: 1px solid var(--border); }
.feed li:first-child { border-top: 0; }
.feed time { color: var(--faint); font-variant-numeric: tabular-nums; }
.feed .k-leader, .feed .k-commit { color: var(--ink); }
.feed .k-leader::before { content: ""; display: inline-block; width: 7px; height: 7px; margin-right: 6px; border-radius: 50%; background: var(--accent); vertical-align: 1px; }
.feed .k-election, .feed .k-request, .feed .k-info { color: var(--muted); }
.feed .k-fault, .feed .k-stepdown, .feed .k-warn { color: var(--down); }

/* Logs ------------------------------------------------------------------------ */

.logs { grid-column: 1 / -1; padding: 16px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); }
.logs h2 { margin-bottom: 12px; font: 700 18px/1.2 var(--display); }
.logs__scroll { overflow-x: auto; }
table { border-collapse: separate; border-spacing: 4px; font-variant-numeric: tabular-nums; }
th { color: var(--muted); font-weight: 500; font-size: 12px; text-align: left; padding: 0 6px; white-space: nowrap; }
thead th { text-align: center; }
th.node { padding-right: 12px; color: var(--ink); font-weight: 600; font-size: 14px; }
th.node.is-leader { color: var(--accent); }
th.node.is-down { color: var(--down); text-decoration: line-through; }
td.cell {
  width: 34px;
  height: 30px;
  border-radius: 4px;
  text-align: center;
  font-size: 12px;
  font-weight: 600;
}
td.cell.is-committed { background: var(--ink); color: var(--ground); }
td.cell.is-pending { box-shadow: inset 0 0 0 1.5px var(--muted); color: var(--muted); }
td.cell.is-empty { background: var(--raised); opacity: 0.45; }
td.kv { padding-left: 16px; color: var(--muted); font-size: 13px; white-space: nowrap; }
td.kv b { color: var(--ink); font-weight: 600; }

/* Narrow screens -------------------------------------------------------------- */

@media (max-width: 960px) {
  .layout { grid-template-columns: 1fr; grid-template-rows: 60vh auto auto; }
  .panel { max-height: none; }
  .feed { max-height: 220px; }
}
@media (max-width: 560px) {
  .bar { align-items: flex-start; flex-direction: column; gap: 8px; }
  .layout { grid-template-rows: 70vh auto auto; }
}