@keyframes breathe-big {
  0%, 100% { transform: scale(0.65); }
  40%      { transform: scale(0.9); }
}

.breathing {
  position: fixed;
  inset: 0;
  z-index: 30;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  padding: calc(var(--dock-top) + var(--dock-height) + var(--space-lg)) var(--gutter) var(--space-lg);
  overflow-y: auto;
  text-align: center;
  background: var(--overlay-bg);
  backdrop-filter: blur(12px);

  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility 0s linear var(--transition-normal);
}

.breathing.is-open {
  opacity: 1;
  visibility: visible;
  transition-delay: 0s;
}

body.breathing-open {
  overflow: hidden;
}

body.breathing-open .consent {
  display: none;
}

.breathing__close {
  position: absolute;
  top: calc(var(--dock-top) + var(--dock-height) + var(--space-sm));
  right: var(--gutter);
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  background: none;
  font-size: 1.2rem;
  line-height: 1;
}

.breathing__close:hover {
  background-color: var(--color-accent-soft);
}

.breathing__hint {
  max-width: 28rem;
  color: var(--color-text-muted);
}

.breathing__stage {
  --stage-size: clamp(10rem, 38vmin, 19rem);

  position: relative;
  display: grid;
  place-items: center;
  width: var(--stage-size);
  height: var(--stage-size);
}

.breathing__ring {
  position: absolute;
  inset: 0;
  border: 1px solid var(--color-border);
  border-radius: 50%;
}

.breathing__orb {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, var(--color-accent-soft), var(--color-accent) 62%);
  box-shadow: 0 0 3rem var(--orb-glow);
  transform: scale(calc(0.55 + var(--breath, 0.5) * 0.45));
  transition: transform var(--breath-duration, 0s) ease-in-out;
}

.breathing:not(.is-running) .breathing__orb {
  animation: breathe-big 10s ease-in-out infinite;
}

.breathing__count {
  position: absolute;
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  color: var(--color-accent-contrast);
}

.breathing__phase {
  min-height: 1.3em;
  font-family: var(--font-heading);
  font-size: var(--text-xl);
}

.breathing__patterns {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-xs) var(--space-sm);
}

.breathing__pattern {
  padding: 0.45em 1em;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  font-size: var(--text-sm);
  font-weight: 600;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.breathing__pattern:hover {
  border-color: var(--color-accent);
}

.breathing__pattern[aria-pressed="true"] {
  border-color: var(--color-accent);
  background-color: var(--color-accent-soft);
}

.breathing__stats {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

@media (max-height: 560px) {
  .breathing {
    justify-content: flex-start;
  }

  .breathing__hint {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .breathing:not(.is-running) .breathing__orb {
    animation: none;
  }
}