:root {
  --bg: #05070d;
  --ink: #e8ecf4;
  --dim: #7a8699;
  --hot: #ff9a3c;
  --cool: #4ecdc4;
  --card: rgba(10, 14, 24, 0.88);
  --line: rgba(122, 134, 153, 0.25);
  --mono: "SF Mono", "Cascadia Code", Menlo, Consolas, monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body {
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--mono);
}

#map {
  position: fixed;
  inset: 0;
  display: block;
  cursor: grab;
}
#map.dragging { cursor: grabbing; }

/* ---------- HUD ---------- */

#hud {
  position: fixed;
  top: 0; left: 0; right: 0;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 14px 18px;
  pointer-events: none;
  background: linear-gradient(to bottom, rgba(5,7,13,0.85), transparent);
}

#brand h1 {
  font-size: 18px;
  letter-spacing: 3px;
  font-weight: 700;
}
#brand h1 span { color: var(--dim); font-weight: 400; }
#tagline { font-size: 11px; color: var(--dim); letter-spacing: 1px; margin-top: 2px; }

#status {
  display: flex;
  gap: 14px;
  align-items: center;
  font-size: 12px;
  color: var(--dim);
  padding-top: 3px;
}

.badge {
  padding: 3px 8px;
  border: 1px solid var(--line);
  border-radius: 3px;
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--dim);
}
.badge.live { color: var(--hot); border-color: var(--hot); animation: pulse 2.4s infinite; }
.badge.sim  { color: var(--cool); border-color: var(--cool); }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.55; } }

/* ---------- controls ---------- */

#controls {
  position: fixed;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  max-width: 96vw;
}

.ctl {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 1px;
  color: var(--ink);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 8px 14px;
  cursor: pointer;
  backdrop-filter: blur(6px);
}
.ctl:hover { border-color: var(--hot); }
.ctl b { color: var(--hot); font-weight: 700; }
.ctl.archive b { color: var(--cool); }

select.ctl {
  appearance: none;
  -webkit-appearance: none;
  max-width: 44vw;
}
select.ctl option { background: #0a0e18; color: var(--ink); }

/* ---------- thread panel ---------- */

#panel {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: min(380px, 92vw);
  background: var(--card);
  backdrop-filter: blur(10px);
  border-left: 1px solid var(--line);
  padding: 18px;
  overflow-y: auto;
  z-index: 10;
}

#panel-close, #help-close {
  position: absolute;
  top: 10px; right: 12px;
  background: none;
  border: none;
  color: var(--dim);
  font-size: 22px;
  cursor: pointer;
  font-family: var(--mono);
}
#panel-close:hover, #help-close:hover { color: var(--ink); }

#panel h2 {
  font-size: 14px;
  line-height: 1.5;
  padding-right: 26px;
  font-weight: 400;
  word-wrap: break-word;
}

#panel-stats {
  margin: 12px 0 16px;
  font-size: 11px;
  color: var(--dim);
  line-height: 1.9;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 8px 0;
}
#panel-stats b { color: var(--hot); font-weight: 400; }

#panel-posts { list-style: none; }
#panel-posts li {
  margin-bottom: 14px;
  font-size: 12px;
  line-height: 1.55;
  word-wrap: break-word;
}
#panel-posts .who {
  color: var(--cool);
  font-size: 10px;
  display: block;
  margin-bottom: 2px;
  letter-spacing: 0.5px;
}
#panel-posts .when { color: var(--dim); }

/* ---------- help ---------- */

#help {
  position: fixed;
  inset: 0;
  background: rgba(5,7,13,0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 20;
  padding: 20px;
}

#help-card {
  position: relative;
  max-width: 560px;
  max-height: 86vh;
  overflow-y: auto;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 26px 30px;
  backdrop-filter: blur(10px);
}
#help-card h2 {
  font-size: 13px;
  letter-spacing: 2px;
  color: var(--hot);
  margin: 18px 0 8px;
}
#help-card h2:first-of-type { margin-top: 0; }
#help-card p { font-size: 13px; line-height: 1.65; margin-bottom: 10px; }
#help-card b { color: var(--cool); font-weight: 700; }
#help-card i { color: var(--hot); font-style: normal; }
#help-card .fine { font-size: 11px; color: var(--dim); margin-top: 16px; }

/* ---------- toast ---------- */

#toast {
  position: fixed;
  bottom: 68px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 8px 16px;
  font-size: 12px;
  color: var(--ink);
  z-index: 15;
  pointer-events: none;
  transition: opacity 0.4s;
}

.hidden { display: none !important; }

@media (max-width: 640px) {
  #brand h1 { font-size: 14px; letter-spacing: 2px; }
  #tagline { font-size: 9px; }
  #status { flex-direction: column; gap: 4px; align-items: flex-end; }
  .ctl { padding: 7px 10px; font-size: 11px; }
}