/* Asteroids — game-specific overlay styling.
   The toolbar/panel/canvas-container come from /shared-base.css. */

main {
  position: fixed;
  inset: 0;
  display: block;
}

#sim-container {
  position: absolute;
  inset: 0;
}

#sim-canvas {
  display: block;
  width: 100%;
  height: 100%;
}

/* ─── Toolbar tweaks ─── */
.sim-tagline {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
  margin-left: 4px;
}

.tool-btn.text-btn {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text);
  padding: 0 10px;
  height: 30px;
  min-width: 32px;
  width: auto;
  border-radius: var(--radius);
  background: transparent;
}

.tool-btn.text-btn:hover { background: var(--bg-hover); }

/* ─── Game HUD (top-left of canvas) ─── */
.game-hud {
  position: absolute;
  top: calc(12px + var(--toolbar-h) + 16px);
  left: 16px;
  z-index: 10;
  display: flex;
  flex-direction: column;
  gap: 4px;
  pointer-events: none;
  font-family: var(--font-mono);
  text-shadow: 0 0 8px var(--bg-canvas);
}

.hud-row {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 0.95rem;
  font-variant-numeric: tabular-nums;
}

.hud-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.12em;
}

.hud-val { color: var(--text); font-weight: 600; }
.hud-val.accent { color: var(--accent); letter-spacing: 0.15em; }
.hud-sep { color: var(--text-muted); }

/* ─── Relativistic stat readout (bottom-left) ─── */
.rel-hud {
  position: absolute;
  bottom: 16px;
  left: 16px;
  z-index: 10;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-secondary);
  display: flex;
  flex-direction: column;
  gap: 2px;
  text-shadow: 0 0 8px var(--bg-canvas);
  pointer-events: none;
  min-width: 168px;
}

.rel-row {
  display: grid;
  grid-template-columns: 60px 1fr auto;
  align-items: baseline;
  gap: 6px;
  font-variant-numeric: tabular-nums;
}

.rel-row > span:first-child {
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

.rel-row > span:nth-child(2) {
  color: var(--text);
  text-align: right;
  font-weight: 600;
}

.rel-unit { color: var(--text-muted); font-size: 0.7rem; }

.rel-row.dim { opacity: 0.7; margin-top: 4px; padding-top: 4px; }

/* ─── Touch buttons (mobile) ─── */
.touch-pad {
  position: absolute;
  bottom: 16px;
  right: 16px;
  display: none;
  gap: 6px;
  z-index: 12;
}

.touch-btn {
  width: 56px;
  height: 56px;
  border: none;
  border-radius: var(--radius);
  background: var(--bg-panel);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: var(--text);
  font-size: 1.4rem;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.touch-btn:active { background: var(--bg-hover); }
.touch-btn.fire   { color: var(--accent); }

@media (pointer: coarse) {
  .touch-pad { display: flex; }
}

/* ─── Pause / game-over overlay ─── */
.game-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
  background: color-mix(in srgb, var(--bg-canvas) 60%, transparent);
}

.game-overlay[hidden] { display: none; }

.overlay-card {
  padding: 32px 44px;
  border-radius: var(--radius);
  text-align: center;
  min-width: 280px;
}

.overlay-card h2 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 400;
  letter-spacing: -0.02em;
  margin: 0 0 8px;
  color: var(--text);
}

.overlay-card p {
  margin: 0 0 18px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.overlay-card p b { color: var(--text); font-weight: 600; }

.overlay-btn {
  border: none;
  background: var(--accent);
  color: var(--text-on-accent);
  padding: 10px 22px;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  cursor: pointer;
  text-transform: uppercase;
}

.overlay-btn:hover { background: var(--accent-light); }

/* ─── Sidebar tweaks ─── */
.panel-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 500;
  color: var(--text);
  letter-spacing: -0.01em;
}

.key-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 0;
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.key-row kbd {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text);
  background: var(--bg-hover);
  padding: 2px 6px;
  border-radius: var(--radius);
  min-width: 28px;
  text-align: center;
  border: none;
}

.key-row span { margin-left: 6px; color: var(--text-muted); }

.ref-line {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin: 4px 0;
  line-height: 1.5;
}

.ref-line.dim { color: var(--text-muted); }

/* ─── Mobile layout — collapse sidebar to bottom sheet ─── */
@media (max-width: 900px) {
  .sim-panel {
    width: 100vw;
    right: 0;
    top: auto;
    bottom: 0;
    height: 50vh;
    transform: translateY(100%);
    border-radius: var(--radius) var(--radius) 0 0;
  }
  .sim-panel.open { transform: translateY(0); }
  .game-hud { top: calc(12px + var(--toolbar-h) + 8px); }
  .rel-hud { bottom: calc(50vh + 80px); }
  .touch-pad { bottom: calc(50vh + 16px); }
}