/* Minimal, dependency-free styling */
:root {
  --bg: #0b0b0b;
  --panel: #141414;
  --card: #1b1b1b;
  --text: #ececec;
  --muted: #a5a5a5;
  --border: #2b2b2b;
  --accent: #36c;
  --danger: #c33;
  --ok: #2c8a4b;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}

.mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  overflow-wrap: anywhere;
  word-break: break-word;
}
.small { font-size: 12px; color: var(--muted); }

.hidden { display: none !important; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  background: #0f0f0f;
}

.brand { display: flex; gap: 10px; align-items: center; }
.logo { font-size: 24px; }
.title { font-weight: 700; }
.subtitle { font-size: 12px; color: var(--muted); }

.statusline { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); }
.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; border: 1px solid var(--border); }
.dot-on { background: var(--ok); }
.dot-off { background: #333; }
.dot-warn { background: #caa300; }

.layout {
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: 14px;
  padding: 14px;
}

.layout > * { min-width: 0; }

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-gutter: stable;
  max-height: calc(100vh - 110px);
}

.stage {
  position: relative;
  background: #101010;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  padding: 8px;
}

/* Canvas + HUD layout (desktop: HUD as sidebar so it does not cover the track). */
.stage-grid {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 10px;
  align-items: start;
}

.stage-grid > * { min-width: 0; }

/* Focus mode (TAB): hide HUD sidebar so the canvas gets full width. */
body.hud-hidden .stage-grid {
  grid-template-columns: 1fr;
}
body.hud-hidden .hud {
  display: none !important;
}

h2 { margin: 0 0 10px 0; }
h3 { margin: 0 0 8px 0; font-size: 14px; color: #ddd; }

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
label { display: grid; gap: 4px; font-size: 12px; color: var(--muted); }

input, select {
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #111;
  color: var(--text);
}

.row { display: flex; gap: 10px; flex-wrap: wrap; margin: 10px 0; }

button {
  padding: 9px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #222;
  color: var(--text);
  cursor: pointer;
}
button:hover { filter: brightness(1.1); }
button:disabled { cursor: not-allowed; opacity: 0.5; }
button.secondary { background: #1b1b1b; }
button.danger { background: #2a1616; border-color: #553; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  margin-top: 10px;
}

.list {
  background: #111;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  min-height: 34px;
  margin-bottom: 10px;
  white-space: pre-line;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.log {
  background: #0f0f0f;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  height: 190px;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-gutter: stable;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  word-break: break-word;
  color: #ddd;
}

/* Public rooms list */
#roomsList button {
  width: 100%;
  text-align: left;
  margin-bottom: 8px;
}
#roomsList button:last-child {
  margin-bottom: 0;
}

canvas#game {
  width: 100%;
  height: calc(100vh - 160px);
  display: block;
  background: #0b0b0b;
  border-radius: 8px;
  border: 1px solid var(--border);
}

.hud {
  display: grid;
  gap: 10px;
  width: 100%;
  height: calc(100vh - 160px);
  overflow: auto;
  padding-right: 2px;
}

.hud-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 10px; }
.hud-box {
  background: rgba(10,10,10,0.75);
  border: 1px solid rgba(60,60,60,0.65);
  border-radius: 12px;
  padding: 10px 12px;
}
.hud-box.wide { grid-column: 1 / -1; }
.hud-title { font-size: 11px; color: #bbb; }
.hud-value {
  font-size: 13px;
  color: #fff;
  white-space: pre-line;
  overflow-wrap: anywhere;
}

/* Smaller screens: stack HUD under the canvas (never cover the track). */
@media (max-width: 1200px) {
  .stage-grid {
    grid-template-columns: 1fr;
  }

  .hud {
    height: auto;
    max-height: 45vh;
  }
}


.overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(0,0,0,0.45);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  pointer-events: none;
}
.overlay.hidden { display: none; }
.overlay-card {
  background: rgba(15,15,15,0.95);
  border: 1px solid rgba(80,80,80,0.8);
  border-radius: 16px;
  padding: 18px 18px;
  width: min(520px, 92%);
}
.overlay-title { font-size: 20px; font-weight: 800; margin-bottom: 10px; }
.overlay-body { font-size: 13px; color: #eee; white-space: pre-wrap; }


/* Countdown overlay – big digits + punchy feel */
.overlay.countdown {
  background: rgba(0,0,0,0.35);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.overlay.countdown .overlay-card {
  background: rgba(10,10,10,0.55);
  border: 1px solid rgba(140,140,140,0.35);
  text-align: center;
  padding: 22px 18px;
}
.overlay-kicker {
  font-size: 12px;
  color: #ddd;
  opacity: 0.85;
}
.overlay-big {
  font-size: 96px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: 1px;
  margin-top: 6px;
  text-shadow: 0 0 18px rgba(255,255,255,0.12);
}
@keyframes overlayPop {
  0%   { transform: scale(0.85); opacity: 0.2; }
  45%  { transform: scale(1.05); opacity: 1; }
  100% { transform: scale(1.00); opacity: 0.92; }
}
.overlay-big.animate {
  animation: overlayPop 450ms ease-out;
}
.overlay.countdown .overlay-body {
  display: none;
}

.footer {
  padding: 10px 18px;
  border-top: 1px solid var(--border);
  background: #0f0f0f;
}

@media (max-width: 980px) {
  .layout { grid-template-columns: 1fr; }
  .panel { max-height: unset; }
  canvas#game { height: 60vh; }
}


/* Dark, unobtrusive scrollbars (desktop) */
* {
  scrollbar-width: thin;              /* Firefox */
  scrollbar-color: #2b2b2b #0f0f0f;   /* thumb / track */
}
*::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
*::-webkit-scrollbar-track {
  background: #0f0f0f;
}
*::-webkit-scrollbar-thumb {
  background: #2b2b2b;
  border-radius: 999px;
  border: 2px solid #0f0f0f;
}
*::-webkit-scrollbar-thumb:hover {
  background: #3a3a3a;
}