#header {
  position: relative;
}

/* This lane occupies the existing gap; it never participates in header layout. */
.svbita-header-lane {
  position: absolute;
  top: 0;
  bottom: 0;
  overflow: hidden;
  visibility: hidden;
  pointer-events: none;
}

.svbita-header-lane[data-ready='true'] {
  visibility: visible;
}

.svbita-header-runner {
  position: absolute;
  top: 50%;
  left: 0;
  display: flex;
  align-items: center;
  gap: 8px;
  width: max-content;
  height: 44px;
  margin-top: -22px;
  padding: 2px;
  color: #70404e;
  cursor: pointer;
  pointer-events: auto;
  /* Keep SVbita moving even when Windows requests reduced motion. */
  animation: svbita-header-cross var(--svbita-run-duration, 6s) linear infinite alternate;
}

.svbita-header-message {
  position: relative;
  display: block;
  border: 1px solid #e7a5b6;
  border-radius: 4px;
  padding: 4px 7px;
  background: #ffe5ed;
  box-shadow: 0 2px 0 #b66d86;
  color: inherit;
  font: 700 11px/1.2 'Consolas', 'Monaco', monospace;
  white-space: nowrap;
  animation: svbita-header-message-bob 0.6s steps(2, end) infinite;
}

.svbita-header-message::after {
  content: '';
  position: absolute;
  top: 50%;
  right: -4px;
  width: 5px;
  height: 5px;
  border-top: 1px solid #e7a5b6;
  border-right: 1px solid #e7a5b6;
  background: #ffe5ed;
  transform: translateY(-50%) rotate(45deg);
}

.svbita-header-baby {
  position: relative;
  display: block;
  flex: 0 0 36px;
  width: 36px;
  height: 40px;
}

.svbita-header-baby::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 8px;
  width: 22px;
  height: 2px;
  background: rgba(0, 0, 0, 0.2);
}

.svbita-header-sprite {
  position: relative;
  z-index: 1;
  display: block;
  width: 36px;
  height: 40px;
  background: url('../assets/images/svbita-run.svg') 0 0 / 216px 40px no-repeat;
  image-rendering: pixelated;
  animation: svbita-header-steps 0.6s steps(6, end) infinite;
}

.svbita-header-runner.is-returning {
  flex-direction: row-reverse;
}

.svbita-header-runner.is-returning .svbita-header-baby {
  transform: scaleX(-1);
}

.svbita-header-runner.is-returning .svbita-header-message::after {
  right: auto;
  left: -4px;
  transform: translateY(-50%) rotate(-135deg);
}

.svbita-header-lane[data-compact='true'] .svbita-header-runner {
  gap: 5px;
}

.svbita-header-lane[data-compact='true'] .svbita-header-message {
  padding: 4px 5px;
  font-size: 10px;
}

.svbita-header-runner:hover,
.svbita-header-runner:focus-visible {
  color: #562f3a;
}

.svbita-header-runner:focus-visible {
  outline: 2px solid #ffd2df;
  outline-offset: -2px;
  border-radius: 4px;
}

.svbita-header-lane:hover .svbita-header-runner,
.svbita-header-lane:focus-within .svbita-header-runner,
.svbita-header-lane:hover .svbita-header-message,
.svbita-header-lane:focus-within .svbita-header-message,
.svbita-header-lane:hover .svbita-header-sprite,
.svbita-header-lane:focus-within .svbita-header-sprite,
.svbita-header-lane[data-ready='false'] .svbita-header-runner,
.svbita-header-lane[data-ready='false'] .svbita-header-message,
.svbita-header-lane[data-ready='false'] .svbita-header-sprite {
  animation-play-state: paused;
}

@keyframes svbita-header-cross {
  from { transform: translateX(0); }
  to { transform: translateX(var(--svbita-run-distance, 0px)); }
}

@keyframes svbita-header-steps {
  to { background-position-x: -216px; }
}

@keyframes svbita-header-message-bob {
  50% { transform: translateY(-2px); }
}

@media (max-width: 1024px) {
  .svbita-header-lane {
    display: none;
  }
}