/* Режим диагностики лага: ?lagmarks=1 */

.has-lag-markers .lag-markers {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 99999;
  font-family: "Space Grotesk", "Inter", system-ui, sans-serif;
}

.lag-markers__hud {
  position: fixed;
  top: 12px;
  left: 12px;
  pointer-events: none;
  padding: 10px 14px;
  background: rgba(0, 0, 0, 0.82);
  border: 1px solid rgba(0, 212, 255, 0.45);
  border-radius: 8px;
  color: #fff;
  font-size: 12px;
  line-height: 1.45;
  max-width: min(92vw, 320px);
}

.lag-markers__title {
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.65;
  margin-bottom: 4px;
}

.lag-markers__readout {
  font-variant-numeric: tabular-nums;
  opacity: 0.9;
}

.lag-markers__phase {
  font-size: 15px;
  font-weight: 700;
  margin-top: 4px;
  color: #00d4ff;
}

.lag-markers__watermark {
  position: fixed;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  font-size: clamp(72px, 18vw, 200px);
  font-weight: 700;
  opacity: 0.22;
  pointer-events: none;
  letter-spacing: -0.04em;
  text-shadow: 0 0 80px currentColor;
  transition: color 0.15s ease;
}

.lag-markers__watermark.is-flash {
  animation: lag-mark-flash 0.45s ease-out;
}

@keyframes lag-mark-flash {
  0% {
    opacity: 0.5;
    transform: translate(-50%, -50%) scale(1.08);
  }
  100% {
    opacity: 0.22;
    transform: translate(-50%, -50%) scale(1);
  }
}

.lag-markers__rail {
  position: fixed;
  top: 8vh;
  right: 10px;
  width: 56px;
  height: 84vh;
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.12);
  pointer-events: none;
}

.lag-markers__seg {
  position: absolute;
  left: 4px;
  right: 4px;
  border-radius: 4px;
  border-left: 3px solid var(--seg-color, #fff);
  padding: 2px 2px 2px 6px;
  opacity: 0.45;
  transition: opacity 0.12s, background 0.12s;
  overflow: hidden;
}

.lag-markers__seg.is-active {
  opacity: 1;
  background: rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 0 12px var(--seg-color);
}

.lag-markers__seg-id {
  display: block;
  font-size: 11px;
  font-weight: 700;
  color: var(--seg-color);
}

.lag-markers__seg-name {
  display: block;
  font-size: 8px;
  line-height: 1.2;
  color: rgba(255, 255, 255, 0.75);
  word-break: break-word;
}

.lag-markers__pins {
  position: fixed;
  top: 8vh;
  right: 68px;
  width: 12px;
  height: 84vh;
  pointer-events: none;
}

.lag-markers__pin {
  position: absolute;
  left: 0;
  width: 12px;
  height: 12px;
  margin-top: -6px;
  border-radius: 50%;
  border: 2px solid #fff;
  box-shadow: 0 0 12px currentColor;
}

.lag-markers__pin--start {
  background: #ff3355;
  color: #ff3355;
}

.lag-markers__pin--end {
  background: #00ffa1;
  color: #00ffa1;
}

.lag-markers__actions {
  position: fixed;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  pointer-events: auto;
}

.lag-markers__btn {
  pointer-events: auto;
  cursor: pointer;
  border: none;
  border-radius: 999px;
  padding: 12px 20px;
  font-family: inherit;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #fff;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
}

.lag-markers__btn--start {
  background: linear-gradient(120deg, #ff3355, #ff6b35);
}

.lag-markers__btn--end {
  background: linear-gradient(120deg, #00c853, #00ffa1);
}

.lag-markers__log {
  position: fixed;
  bottom: 72px;
  left: 12px;
  max-width: min(92vw, 360px);
  max-height: 28vh;
  overflow: auto;
  pointer-events: auto;
  padding: 10px 12px;
  background: rgba(0, 0, 0, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  color: #fff;
  font-size: 11px;
}

.lag-markers__log ol {
  margin: 6px 0 0;
  padding-left: 18px;
}

.lag-markers__log li {
  margin-bottom: 4px;
}

@media (max-width: 640px) {
  .lag-markers__rail {
    width: 44px;
    right: 6px;
  }
  .lag-markers__pins {
    right: 54px;
  }
  .lag-markers__seg-name {
    display: none;
  }
  .lag-markers__actions {
    flex-direction: column;
    width: min(92vw, 280px);
  }
  .lag-markers__btn {
    width: 100%;
  }
}