@keyframes breathe {
  0%, 100% { transform: scale(0.82); box-shadow: 0 0 0.8rem var(--orb-glow); }
  40%      { transform: scale(1.22); box-shadow: 0 0 2.8rem 0.5rem var(--orb-glow); }
}

@keyframes dock-in {
  from { transform: translate(-50%, -140%); opacity: 0; }
  to   { transform: translate(-50%, 0);     opacity: 1; }
}

.dock {
  --item-width: clamp(3.3rem, 1.5rem + 3.6vw, 4.1rem);
  --icon-size: clamp(1.5rem, 1.2rem + 0.8vw, 2rem);

  position: fixed;
  top: max(var(--dock-top), env(safe-area-inset-top));
  left: 50%;
  z-index: 40;
  max-width: calc(100vw - 1rem);
  transform: translateX(-50%);
  background-color: color-mix(in srgb, var(--color-surface) 82%, transparent);
  backdrop-filter: blur(14px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-soft);
  animation: dock-in 0.9s cubic-bezier(0.2, 1.25, 0.3, 1) both;
  -webkit-tap-highlight-color: transparent;
}

.dock__list {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 0.45rem clamp(0.5rem, 1.6vw, 1.1rem);
}

.dock__item {
  --s: 1;
  flex-shrink: 0;
  width: calc(var(--item-width) * (1 + (var(--s) - 1) * 0.6));
  transition: width 0.16s ease-out;
}

.dock__item:hover,
.dock__item:focus-within {
  --s: 1.18;
}

.dock__link {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  padding: 0.6rem 0 0.7rem;
  border-radius: var(--radius-md);
  font-size: clamp(0.66rem, 0.52rem + 0.45vw, 0.82rem);
  font-weight: 600;
  line-height: 1.1;
  white-space: nowrap;
  text-decoration: none;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.dock__link:hover,
.dock__link:focus-visible {
  color: var(--color-accent);
}

.dock__icon {
  width: var(--icon-size);
  height: var(--icon-size);
  background-color: currentColor;
  -webkit-mask: var(--icon) center / contain no-repeat;
  mask: var(--icon) center / contain no-repeat;
  transform: scale(var(--s));
  transform-origin: center top;
  transition: transform 0.16s ease-out;
}

.dock__label {
  transform: translateY(calc(var(--icon-size) * (var(--s) - 1))) scale(calc(1 + (var(--s) - 1) * 0.25));
  transform-origin: center top;
  transition: transform 0.16s ease-out;
}

.dock__icon--home      { --icon: url("../../img/nav/home.svg"); }
.dock__icon--explore   { --icon: url("../../img/nav/explore.svg"); }
.dock__icon--journal   { --icon: url("../../img/nav/journal.svg"); }
.dock__icon--grounding { --icon: url("../../img/nav/grounding.svg"); }
.dock__icon--sounds    { --icon: url("../../img/nav/sounds.svg"); }
.dock__icon--help      { --icon: url("../../img/nav/help.svg"); }

.dock__link[aria-current] {
  color: var(--color-text);
}

.dock__link[aria-current] .dock__icon {
  filter: drop-shadow(0 0 0.35rem var(--orb-glow));
}

.dock__link[aria-current]::after {
  content: "";
  position: absolute;
  bottom: 0.22rem;
  left: 50%;
  width: 0.28rem;
  height: 0.28rem;
  margin-left: -0.14rem;
  border-radius: 50%;
  background-color: var(--color-accent);
  box-shadow: 0 0 0.5rem var(--orb-glow);
}

.dock__link:focus-visible,
.dock__orb:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: -2px;
  box-shadow: none;
  border-radius: var(--radius-md);
}

.dock__item--orb {
  width: calc(clamp(3.8rem, 3rem + 3vw, 4.5rem) * (1 + (var(--s) - 1) * 0.6));
}

.dock__orb {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  width: 100%;
  padding: 0.15rem 0 0.2rem;
  border: none;
  background: none;
  font-size: clamp(0.66rem, 0.52rem + 0.45vw, 0.82rem);
  font-weight: 600;
  line-height: 1.1;
  color: var(--color-text-muted);
  transform: scale(var(--s));
  transform-origin: center top;
  transition: transform 0.16s ease-out;
}

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

.dock__orb-core {
  position: relative;
  width: clamp(2.7rem, 2.3rem + 1.2vw, 3.3rem);
  height: clamp(2.7rem, 2.3rem + 1.2vw, 3.3rem);
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, var(--color-accent-soft), var(--color-accent) 62%);
  box-shadow: 0 0 1.4rem var(--orb-glow);
  animation: breathe 10s ease-in-out infinite;
}

body.is-breathing .dock__orb-core {
  animation: none;
  transform: scale(calc(0.82 + var(--breath, 0.5) * 0.4));
  box-shadow: 0 0 calc(0.8rem + var(--breath, 0.5) * 2rem) var(--orb-glow);
  transition: transform var(--breath-duration, 0s) ease-in-out, box-shadow var(--breath-duration, 0s) ease-in-out;
}

@media (prefers-reduced-motion: reduce) {
  .dock,
  .dock__orb-core {
    animation: none;
  }
}