/* Navigation · slide tabs (pill cursor follows hover/focus and rests on the active section) and the floating WhatsApp button */
.tabs {
  grid-area: tabs;
  min-width: 0;
  max-width: 100%;
  justify-self: center;
}

.tabs__list {
  position: relative;
  isolation: isolate;
  display: flex;
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
  padding: 0.25rem;
  border: 2px solid var(--color-ink);
  border-radius: 999px;
  background: var(--color-paper);
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.tabs__list::-webkit-scrollbar {
  display: none;
}

.tabs__item {
  flex: 1 1 0;
  min-width: 0;
  border-radius: 999px;
  text-align: center;
}

.tabs__item--home {
  display: none;
}

.tabs__item:has(.tabs__link:focus-visible) {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.tabs__link {
  position: relative;
  z-index: 1;
  display: block;
  padding: 0.55rem 0.25rem;
  color: var(--color-accent-ink);
  font-family: var(--font-display);
  font-size: var(--text-2xs);
  font-weight: 700;
  line-height: 1.2;
  text-transform: uppercase;
  white-space: nowrap;
  mix-blend-mode: difference;
}

@supports selector(:has(a)) {
  .tabs__link:focus-visible {
    outline: none;
  }
}

@media (forced-colors: active) {
  .tabs__link {
    color: LinkText;
    mix-blend-mode: normal;
  }

  .tabs__link[aria-current] {
    color: HighlightText;
  }

  .tabs__cursor {
    background: Highlight;
    forced-color-adjust: none;
  }
}

.tabs__cursor {
  position: absolute;
  inset-block: 0.25rem;
  inset-inline-start: 0;
  z-index: 0;
  width: 0;
  border-radius: 999px;
  background: var(--color-ink);
  opacity: 0;
  transition:
    transform var(--dur-med) var(--ease-out),
    width var(--dur-med) var(--ease-out),
    opacity var(--dur-short) var(--ease-out);
}

.btn__short {
  display: none;
}

.fab {
  position: fixed;
  inset-inline-end: var(--space-sm);
  inset-block-end: var(--space-sm);
  z-index: 30;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
}

.fab__label {
  display: none;
  border-radius: 999px;
  padding: 0.55rem 0.85rem;
  background: var(--color-ink);
  color: var(--color-paper);
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
  box-shadow: var(--shadow-soft);
  opacity: 0;
  transform: translateX(0.4rem);
  transition:
    opacity var(--dur-short) var(--ease-out),
    transform var(--dur-short) var(--ease-out);
}

.fab__button {
  position: relative;
  display: grid;
  width: 4.5rem;
  height: 4.5rem;
  place-items: center;
  border-radius: 50%;
  background: var(--color-whatsapp);
  color: var(--color-whatsapp-ink);
  box-shadow: var(--shadow-whatsapp);
  transition:
    background-color var(--dur-short) var(--ease-out),
    transform var(--dur-fast) var(--ease-out);
}

.fab__button::before {
  content: "";
  position: absolute;
  inset: -0.45rem;
  z-index: -1;
  border-radius: inherit;
  border: 1px solid color-mix(in oklch, var(--color-whatsapp) 60%, transparent);
  animation: fab-pulse 2.8s var(--ease-out) infinite;
}

.fab__button svg {
  width: 2.3rem;
  height: 2.3rem;
  fill: currentColor;
}

.fab__button:focus-visible {
  outline: 3px solid var(--color-ink);
  outline-offset: 3px;
}

.fab__button:active {
  transform: translateY(1px);
}

@media (hover: hover) and (pointer: fine) {
  .fab__button:hover {
    background: var(--color-whatsapp-strong);
    transform: translateY(-2px);
  }

  .fab:hover .fab__label {
    opacity: 1;
    transform: none;
  }
}

.fab:focus-within .fab__label {
  opacity: 1;
  transform: none;
}

@media (max-width: 39.99rem) {
  .fab__button {
    width: 3.9rem;
    height: 3.9rem;
  }

  .fab__button svg {
    width: 2rem;
    height: 2rem;
  }

  .btn__long {
    display: none;
  }

  .btn__short {
    display: inline;
  }
}

@keyframes fab-pulse {
  0%,
  55%,
  100% {
    opacity: 0;
    transform: scale(0.84);
  }

  18% {
    opacity: 0.7;
    transform: scale(1);
  }
}

@media (prefers-reduced-motion: reduce) {
  .fab__button::before {
    animation: none;
  }
}

@media (max-width: 23rem) {
  .tabs__link {
    padding-inline: 0.15rem;
    font-size: var(--text-3xs);
    letter-spacing: -0.01em;
  }
}

@media (min-width: 40rem) {
  .tabs__list {
    width: fit-content;
  }

  .tabs__item {
    flex: none;
  }

  .tabs__item--home {
    display: block;
  }

  .tabs__link {
    padding: 0.55rem 1rem;
    font-size: var(--text-sm);
  }

  .fab {
    inset-inline-end: var(--space-md);
    inset-block-end: var(--space-md);
  }

  .fab__label {
    display: block;
  }
}