.aim-trainer-arena {
  --aim-border: rgba(147, 204, 255, 0.2);
  --aim-panel: rgba(7, 13, 34, 0.72);
  --aim-text: #eef7ff;
  --aim-muted: rgba(202, 220, 242, 0.7);
  display: flex !important;
  flex-direction: column;
  gap: 10px;
  width: 100%;
  min-height: calc(100vh - 28px);
  padding: 12px;
  overflow: hidden;
  background: radial-gradient(circle at 78% 0%, rgba(115, 62, 204, 0.18), transparent 42%), linear-gradient(135deg, #080f26 0%, #0b1330 48%, #171033 100%);
}

.aim-hud {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  min-height: 48px;
  padding: 6px 8px 6px 12px;
  border: 1px solid var(--aim-border);
  border-radius: 10px;
  background: var(--aim-panel);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.16), inset 0 1px rgba(255,255,255,0.06);
}

.aim-duration-control,
.aim-hud-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 7px; }
.aim-duration-control { color: var(--aim-muted); font-size: 12px; }
.aim-duration-control label { color: var(--aim-text); font-weight: 650; }
.aim-duration-control input {
  width: 62px; min-height: 32px; padding: 0 8px; color: var(--aim-text);
  border: 1px solid rgba(173, 211, 255, 0.22); border-radius: 7px; outline: none;
  background: rgba(13, 23, 54, 0.86); font: inherit; font-variant-numeric: tabular-nums;
}
.aim-duration-control input:focus-visible { border-color: rgba(111, 228, 255, 0.8); box-shadow: 0 0 0 2px rgba(111, 228, 255, 0.16); }
.aim-quick-durations { display: flex; gap: 4px; margin-left: 4px; }
.aim-quick-button {
  min-height: 28px; padding: 0 8px; color: var(--aim-muted); border: 1px solid rgba(173, 211, 255, 0.16);
  border-radius: 6px; background: rgba(21, 32, 69, 0.72); cursor: pointer; font: inherit; font-size: 12px;
}
.aim-quick-button:hover,
.aim-quick-button.active { color: #e9fbff; border-color: rgba(92, 224, 255, 0.72); background: rgba(47, 181, 207, 0.2); }
.aim-hud-actions .fun-action { min-height: 32px; padding: 0 14px; border-radius: 7px; font-size: 12px; }

.aim-stat-grid { display: grid; grid-template-columns: repeat(8, minmax(0, 1fr)); gap: 6px; }
.aim-stat-grid > div {
  display: flex; min-height: 52px; padding: 8px 10px; flex-direction: column; justify-content: center;
  border: 1px solid rgba(147, 204, 255, 0.14); border-radius: 8px; background: rgba(8, 16, 41, 0.64);
}
.aim-stat-grid span { color: var(--aim-muted); font-size: 11px; line-height: 1.1; }
.aim-stat-grid strong { margin-top: 4px; color: var(--aim-text); font-size: 17px; line-height: 1; font-variant-numeric: tabular-nums; }

.aim-play-layout { display: flex; min-height: 0; flex: 1 1 auto; }
.aim-canvas-card {
  position: relative; width: 100%; min-width: 0; min-height: 420px; flex: 1 1 auto; overflow: hidden;
  border: 1px solid rgba(114, 222, 255, 0.3); border-radius: 10px; background: #070d22;
  box-shadow: inset 0 1px rgba(255,255,255,0.08), 0 20px 44px rgba(0, 0, 0, 0.28);
}
.aim-canvas { display: block; width: 100%; height: 100%; min-height: 420px; outline: none; cursor: crosshair; touch-action: none; }
.aim-canvas:focus-visible { box-shadow: inset 0 0 0 2px rgba(115, 241, 255, 0.72); }
.aim-canvas-hint {
  position: absolute; inset: 50% auto auto 50%; width: min(90%, 310px); padding: 11px 15px;
  color: rgba(231, 246, 255, 0.82); border: 1px solid rgba(173, 211, 255, 0.22); border-radius: 8px;
  background: rgba(9, 15, 43, 0.72); text-align: center; transform: translate(-50%, -50%);
  pointer-events: none; transition: opacity 160ms ease, transform 160ms ease;
}
.aim-canvas-hint.is-hidden { opacity: 0; transform: translate(-50%, -46%); }

@media (max-width: 900px) {
  .aim-trainer-arena { min-height: calc(100vh - 16px); padding: 8px; }
  .aim-stat-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .aim-canvas-card, .aim-canvas { min-height: 0; }
}
@media (max-width: 560px) {
  .aim-trainer-arena { gap: 7px; padding: 6px; }
  .aim-hud { align-items: stretch; flex-direction: column; padding: 8px; }
  .aim-hud-actions { width: 100%; }
  .aim-hud-actions .fun-action { flex: 1; }
  .aim-stat-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 4px; }
  .aim-stat-grid > div { min-height: 46px; padding: 6px; }
  .aim-stat-grid strong { font-size: 14px; }
  .aim-stat-grid span { font-size: 10px; }
}
@media (prefers-reduced-motion: reduce) { .aim-canvas-hint { transition: none; } }