/* ============================================================
   RaftScope — modern dark theme
   ============================================================ */

:root {
  --bg-0: #0b0f1a;
  --bg-1: #111726;
  --panel: rgba(23, 30, 48, 0.72);
  --panel-solid: #171e30;
  --panel-border: rgba(148, 163, 184, 0.16);
  --panel-border-strong: rgba(148, 163, 184, 0.32);

  --ink: #e8edf6;
  --ink-dim: #9aa6bd;
  --ink-faint: #65718c;

  --accent: #66c2a5;     /* RequestVote / primary */
  --accent-2: #fc8d62;   /* AppendEntries / secondary */
  --accent-glow: rgba(102, 194, 165, 0.45);
  --danger: #ff6b6b;

  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 18px 48px -18px rgba(0, 0, 0, 0.65);
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
}

body {
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(1100px 700px at 12% -10%, rgba(102, 194, 165, 0.12), transparent 55%),
    radial-gradient(900px 600px at 110% 10%, rgba(252, 141, 98, 0.10), transparent 55%),
    linear-gradient(160deg, var(--bg-0), var(--bg-1));
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
}

/* ---------- Layout ---------- */

.app {
  max-width: 1180px;
  margin: 0 auto;
  padding: 28px 24px 40px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.brand { display: flex; align-items: center; gap: 16px; }

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 13px;
  background: conic-gradient(from 140deg, var(--accent), var(--accent-2), var(--accent));
  box-shadow: 0 0 0 1px var(--panel-border-strong), 0 10px 26px -10px var(--accent-glow);
  position: relative;
  flex: none;
}
.brand-mark::after {
  content: "";
  position: absolute;
  inset: 9px;
  border-radius: 6px;
  background: var(--bg-0);
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.14);
}

.brand-text h1 {
  margin: 0;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.brand-text p {
  margin: 2px 0 0;
  font-size: 13px;
  color: var(--ink-dim);
}

.header-actions { display: flex; align-items: center; gap: 12px; }

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ink-dim);
  background: var(--panel);
  border: 1px solid var(--panel-border);
  text-transform: capitalize;
}
.status-pill .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px 1px var(--accent-glow);
}
.status-pill.paused { color: var(--accent-2); }
.status-pill.paused .dot { background: var(--accent-2); box-shadow: 0 0 10px 1px rgba(252,141,98,0.5); }

/* ---------- Stage ---------- */

.stage {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 22px;
  align-items: start;
}

.canvas-card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px 18px 14px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.stage-svg {
  display: block;
  width: 100%;
  height: auto;
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--panel-border);
  font-size: 12.5px;
  color: var(--ink-dim);
}
.legend-item { display: inline-flex; align-items: center; gap: 7px; }
.swatch { width: 13px; height: 13px; border-radius: 4px; flex: none; }
.swatch-rv { background: var(--accent); }
.swatch-ae { background: var(--accent-2); }
.swatch-leader { background: var(--danger); border-radius: 50%; }
.swatch-committed { background: transparent; border: 2px solid var(--ink); border-radius: 3px; }
.swatch-uncommitted { background: transparent; border: 2px dashed var(--ink-faint); border-radius: 3px; }

/* ---------- Control deck ---------- */

.control-deck {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.deck-title {
  margin: 0 0 4px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.deck-hint {
  margin: 0 0 16px;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--ink-faint);
}
.action-grid { display: flex; flex-direction: column; gap: 8px; }

/* ---------- Buttons ---------- */

.btn {
  font-family: inherit;
  font-size: 14px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  cursor: pointer;
  transition: transform 0.08s ease, background 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover { background: rgba(255, 255, 255, 0.08); border-color: var(--panel-border-strong); }
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.action {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  text-align: left;
}
.action:hover { box-shadow: 0 8px 22px -12px var(--accent-glow); }
.action-label { font-weight: 500; }

.btn-ghost { background: var(--panel); }
.icon-btn {
  width: 40px; height: 40px;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 700;
  border-radius: 50%;
  padding: 0;
}

kbd {
  font-family: ui-monospace, "SF Mono", "Cascadia Code", Menlo, monospace;
  font-size: 11px;
  line-height: 1;
  color: var(--ink-dim);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--panel-border-strong);
  border-bottom-width: 2px;
  border-radius: 6px;
  padding: 4px 7px;
  min-width: 18px;
  text-align: center;
}

/* ---------- Transport bar ---------- */

.transport {
  display: flex;
  align-items: center;
  gap: 18px;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px 20px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.btn-play {
  width: 52px; height: 52px;
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: linear-gradient(150deg, var(--accent), #4fae90);
  border: none;
  color: var(--bg-0);
  box-shadow: 0 10px 28px -10px var(--accent-glow);
}
.btn-play:hover { background: linear-gradient(150deg, #74d0b3, var(--accent)); }
.btn-play .glyphicon { font-size: 18px; }

.transport-track { flex: 1; display: flex; flex-direction: column; gap: 12px; min-width: 0; }
.transport-row { display: flex; align-items: center; gap: 14px; }
.track-label {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  width: 92px;
  flex: none;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.speed-value {
  width: 60px;
  flex: none;
  text-align: right;
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  color: var(--ink-dim);
}

/* ---------- Custom range sliders ---------- */

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  flex: 1;
  min-width: 0;
  height: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.10);
  outline: none;
  cursor: pointer;
}
#time { background: linear-gradient(90deg, var(--accent), var(--accent-2)); }
#speed { direction: rtl; }

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--accent);
  box-shadow: 0 0 0 4px rgba(102, 194, 165, 0.18), 0 4px 10px rgba(0,0,0,0.4);
  transition: box-shadow 0.15s ease, transform 0.08s ease;
}
input[type="range"]::-webkit-slider-thumb:hover { box-shadow: 0 0 0 7px rgba(102, 194, 165, 0.22), 0 4px 10px rgba(0,0,0,0.4); }
input[type="range"]:active::-webkit-slider-thumb { transform: scale(1.08); }
input[type="range"]::-moz-range-thumb {
  width: 18px; height: 18px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--accent);
  box-shadow: 0 0 0 4px rgba(102, 194, 165, 0.18);
}
#speed::-webkit-slider-thumb { border-color: var(--accent-2); box-shadow: 0 0 0 4px rgba(252,141,98,0.18), 0 4px 10px rgba(0,0,0,0.4); }
#speed::-moz-range-thumb { border-color: var(--accent-2); }

/* ---------- Icons (replacing Bootstrap glyphicons) ---------- */

.glyphicon { display: inline-block; line-height: 1; font-style: normal; }
.glyphicon-time::before { content: "\23F8"; }     /* playing -> show pause affordance */
.glyphicon-pause::before { content: "\25B6"; }    /* paused  -> show play affordance */
.glyphicon-dashboard { color: var(--accent-2); }
.glyphicon-dashboard::before { content: "\26A1"; font-size: 13px; }

/* ============================================================
   SVG visualization (dark-canvas aware)
   ============================================================ */

svg a:hover { cursor: pointer; }

svg #ring, svg #logsbg { fill: rgba(255, 255, 255, 0.035); }

svg .server path { fill: none; stroke: #cbd5e1; stroke-width: 1.5; }
svg .server.follower path { stroke: #59657f; }

svg .server text { text-anchor: middle; dominant-baseline: central; }
svg .server text.serverid { fill: var(--ink); font-weight: 600; }
svg .server.leader text.serverid { fill: var(--danger); }
svg .logs text.serverid.leader { fill: var(--danger); }

svg .server a,
svg .server a:active,
svg .server a:hover,
svg .server a:focus,
svg .server a:visited { font-size: inherit; text-decoration: none; }

svg .server .votes .have { fill: var(--ink); stroke: var(--ink); }
svg .server .votes .coming { fill: var(--ink-faint); stroke: var(--ink-dim); }
svg .server .votes .no { fill: none; stroke: var(--ink-dim); }

svg .message { stroke-width: 3; }
svg .message.RequestVote { fill: var(--accent); stroke: var(--accent); }
svg .message.AppendEntries { fill: var(--accent-2); stroke: var(--accent-2); }
svg .message.reply circle { fill-opacity: 0; }

svg .logs text { text-anchor: middle; dominant-baseline: central; fill: var(--ink-dim); }
svg .logs path { stroke: var(--ink-dim); }
svg #TriangleOutM path { fill: var(--ink-dim); }
svg .log { fill: none; stroke: rgba(148, 163, 184, 0.28); }

svg .entry rect { fill: none; stroke: #0f172a; stroke-width: 3; }
svg .entry text { text-anchor: middle; dominant-baseline: central; fill: #0f172a; font-weight: 600; }

svg #pause.paused { fill: var(--ink); }
svg #pause.resumed { fill: none; }

/* ============================================================
   Modals (Bootstrap class names, restyled)
   ============================================================ */

.modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1050;
  overflow: auto;
  padding: 5vh 16px;
}
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 1040;
  background: rgba(7, 10, 18, 0.66);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}
.modal-dialog {
  position: relative;
  z-index: 1051;
  margin: 0 auto;
  max-width: 560px;
}
.modal-dialog.modal-sm { max-width: 380px; }
.modal-dialog.modal-lg { max-width: 720px; }

.modal-content {
  background: var(--panel-solid);
  border: 1px solid var(--panel-border-strong);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--panel-border);
}
.modal-title { margin: 0; font-size: 17px; font-weight: 700; }
.modal-body { padding: 18px 20px; font-size: 14px; line-height: 1.55; }
.modal-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
  padding: 14px 20px;
  border-top: 1px solid var(--panel-border);
}
.close {
  background: transparent;
  border: none;
  color: var(--ink-dim);
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 8px;
}
.close:hover { color: var(--ink); background: rgba(255,255,255,0.06); }

.modal-footer .btn,
.btn-default {
  font-family: inherit;
  font-size: 13.5px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--panel-border-strong);
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  cursor: pointer;
}
.modal-footer .btn:hover,
.btn-default:hover { background: rgba(255, 255, 255, 0.10); }

/* definition lists + tables inside modals */
.dl-horizontal { margin: 0; }
.dl-horizontal dt {
  float: left;
  clear: left;
  width: 110px;
  color: var(--ink-dim);
  font-weight: 600;
  padding: 3px 0;
}
.dl-horizontal dd {
  margin-left: 130px;
  padding: 3px 0;
  font-variant-numeric: tabular-nums;
}
.dl-horizontal::after { content: ""; display: block; clear: both; }

.table { width: 100%; border-collapse: collapse; font-size: 13px; }
.table td, .table th {
  padding: 7px 10px;
  border-bottom: 1px solid var(--panel-border);
  text-align: left;
}
.table th { color: var(--ink-dim); font-weight: 600; }
.table-condensed td, .table-condensed th { padding: 4px 8px; }
.table-condensed { margin-top: 4px; }

/* ============================================================
   Context menu (Bootstrap dropdown-menu, restyled)
   ============================================================ */

#context-menu { z-index: 2000; }
.dropdown-menu {
  list-style: none;
  margin: 0;
  padding: 6px;
  min-width: 150px;
  background: var(--panel-solid);
  border: 1px solid var(--panel-border-strong);
  border-radius: 12px;
  box-shadow: var(--shadow);
}
.dropdown-menu li { display: block; }
.dropdown-menu li > a {
  display: block;
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--ink);
  text-decoration: none;
  font-size: 13.5px;
  text-transform: capitalize;
}
.dropdown-menu li > a:hover { background: var(--accent); color: var(--bg-0); }

/* ---------- Responsive ---------- */

@media (max-width: 880px) {
  .stage { grid-template-columns: 1fr; }
  .transport { flex-wrap: wrap; }
  .track-label { width: auto; }
}