/* FAB Контакты — только селекторы под .fab-social. Стиль Zosim Imobiliare, красный акцент. */

.fab-social {
  box-sizing: border-box;
  position: fixed;
  bottom: calc(18px + env(safe-area-inset-bottom, 0px));
  right: calc(18px + env(safe-area-inset-right, 0px));
  z-index: 10000;
  font-family: inherit;
}

.fab-social .fab-social__trigger,
.fab-social .fab-social__backdrop,
.fab-social .fab-social__menu,
.fab-social .fab-social__item {
  box-sizing: border-box;
}

/* Основная кнопка: круг 56–60px, градиент по --red-80, glass + мягкая тень */
.fab-social__trigger {
  width: 58px;
  height: 58px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(145deg, color-mix(in oklab, var(--red-80) 90%, white 10%), var(--red-80));
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  position: relative;
  overflow: hidden;
  box-shadow:
    0 2px 4px rgba(0, 0, 0, 0.12),
    0 6px 16px rgba(0, 0, 0, 0.1),
    0 10px 28px color-mix(in oklab, var(--red-80) 35%, transparent);
  transition: transform var(--transition-duration) ease, box-shadow var(--transition-duration) ease;
}

.fab-social__trigger::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.22) 0%, rgba(255, 255, 255, 0) 50%);
  pointer-events: none;
}

.fab-social__trigger:hover {
  transform: translateY(-1px);
  box-shadow:
    0 4px 8px rgba(0, 0, 0, 0.12),
    0 10px 24px rgba(0, 0, 0, 0.12),
    0 14px 36px color-mix(in oklab, var(--red-80) 4%, transparent);
}

.fab-social__trigger:active {
  transform: scale(0.98);
}

.fab-social__trigger:focus {
  outline: none;
}

.fab-social__trigger:focus-visible {
  outline: 2px solid color-mix(in oklab, var(--red-80) 70%, transparent);
  outline-offset: 2px;
}

.fab-social__trigger-icons {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
}

.fab-social__trigger-icon {
  position: absolute;
  width: 24px;
  height: 24px;
  transition: opacity var(--transition-duration) ease, transform var(--transition-duration) ease;
}

.fab-social__trigger-icon--chat {
  opacity: 1;
  transform: rotate(0);
}

.fab-social__trigger-icon--close {
  opacity: 0;
  transform: rotate(-90deg);
}

.fab-social.is-open .fab-social__trigger-icon--chat {
  opacity: 0;
  transform: rotate(90deg);
  pointer-events: none;
}

.fab-social.is-open .fab-social__trigger-icon--close {
  opacity: 1;
  transform: rotate(0);
}

/* Пульсация: до 1.06 + лёгкий ring; при открытом меню выключена; уважать prefers-reduced-motion */
@media (prefers-reduced-motion: no-preference) {
  .fab-social:not(.is-open) .fab-social__trigger {
    animation: fab-social-pulse 2.2s ease-in-out infinite;
  }
}

.fab-social.is-open .fab-social__trigger {
  animation: none;
}

@keyframes fab-social-pulse {
  0%, 100% {
    transform: scale(1);
    box-shadow:
      0 2px 4px rgba(0, 0, 0, 0.12),
      0 6px 16px rgba(0, 0, 0, 0.1),
      0 10px 28px color-mix(in oklab, var(--red-80) 35%, transparent);
  }
  50% {
    transform: scale(1.06);
    box-shadow:
      0 2px 4px rgba(0, 0, 0, 0.1),
      0 6px 16px rgba(0, 0, 0, 0.1),
      0 0 0 6px color-mix(in oklab, var(--red-80) 18%, transparent),
      0 10px 28px color-mix(in oklab, var(--red-80) 28%, transparent);
  }
}

@media (prefers-reduced-motion: reduce) {
  .fab-social .fab-social__trigger {
    animation: none;
  }
}

/* Backdrop */
.fab-social__backdrop {
  position: fixed;
  inset: 0;
  background: transparent;
  z-index: 9998;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-duration) ease;
}

.fab-social.is-open .fab-social__backdrop {
  pointer-events: auto;
  opacity: 1;
}

/* Меню: снизу вверх, opacity + translateY, stagger +40ms */
.fab-social__menu {
  position: absolute;
  bottom: calc(58px + 11px + env(safe-area-inset-bottom, 0px));
  right: 0;
  display: flex;
  flex-direction: column-reverse;
  align-items: center;
  gap: 11px;
  list-style: none;
  margin: 0;
  padding: 0;
  pointer-events: none;
  opacity: 0;
  transform: translateY(14px);
  transition: opacity var(--transition-duration) ease, transform var(--transition-duration) ease;
  z-index: 9999;
}

.fab-social.is-open .fab-social__menu {
  pointer-events: auto;
  opacity: 1;
  transform: translateY(0);
}

/* Пункт меню: круг 46–50px, тёмный фон, красный акцент при hover/focus */
.fab-social__item {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  padding: 0;
  overflow: visible;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background: rgb(var(--black) / 0.92);
  color: #fff;
  cursor: pointer;
}

.fab-social__item,
.fab-social__item * {
  cursor: pointer;
}

.fab-social__item {
  box-shadow:
    0 1px 4px rgba(0, 0, 0, 0.2),
    0 4px 12px rgba(0, 0, 0, 0.15);
  transition:
    transform var(--transition-duration) ease,
    box-shadow var(--transition-duration) ease,
    border-color var(--transition-duration) ease,
    opacity var(--transition-duration) ease;
  transition-delay: 0ms;
  text-decoration: none;
  border: 1px solid transparent;
}

.fab-social__item:hover {
  transform: translateY(-1px);
  box-shadow:
    0 2px 8px rgba(0, 0, 0, 0.22),
    0 8px 20px rgba(0, 0, 0, 0.18);
  border-color: var(--red-80);
}

.fab-social__item:active {
  transform: scale(0.98);
}

.fab-social__item:focus {
  outline: none;
}

.fab-social__item:focus-visible {
  outline: 2px solid color-mix(in oklab, var(--red-80) 55%, transparent);
  outline-offset: 2px;
  border-color: var(--red-80);
}

.fab-social__item-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.fab-social__item .fab-social__item-icon svg {
  width: 32px;
  height: 32px;
  fill: none;
  stroke: #fff;
  stroke-width: 2.5;
  flex-shrink: 0;
  color: #fff;
}

.fab-social__item .fab-social__item-icon svg path,
.fab-social__item .fab-social__item-icon svg rect,
.fab-social__item .fab-social__item-icon svg circle {
  fill: none !important;
  stroke: #fff !important;
  stroke-width: 2.5;
}

/* Pill tooltip слева от иконки, при hover/focus */
.fab-social__tooltip {
  position: absolute;
  right: 100%;
  margin-right: 12px;
  top: 50%;
  transform: translateY(-50%) translateX(8px);
  padding: 6px 12px;
  border-radius: 999px;
  background: rgb(var(--black) / 0.92);
  color: #fff;
  font-size: 0.8125rem;
  font-weight: 500;
  white-space: nowrap;
  opacity: 0;
  transition: opacity var(--transition-duration) ease, transform var(--transition-duration) ease;
  pointer-events: none;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.fab-social__item:hover .fab-social__tooltip,
.fab-social__item:focus-visible .fab-social__tooltip {
  opacity: 1;
  transform: translateY(-50%) translateX(0);
}

@media (max-width: 480px) {
  .fab-social__tooltip {
    display: none;
  }
}

/* Stagger открытия: каждая следующая +40ms */
@media (prefers-reduced-motion: no-preference) {
  .fab-social__menu .fab-social__item {
    opacity: 0;
    transform: translateY(10px);
  }

  .fab-social.is-open .fab-social__menu .fab-social__item {
    opacity: 1;
    transform: translateY(0);
  }

  .fab-social__menu .fab-social__item:nth-child(1) { transition-delay: 0ms; }
  .fab-social__menu .fab-social__item:nth-child(2) { transition-delay: 40ms; }
  .fab-social__menu .fab-social__item:nth-child(3) { transition-delay: 80ms; }
  .fab-social__menu .fab-social__item:nth-child(4) { transition-delay: 120ms; }
  .fab-social__menu .fab-social__item:nth-child(5) { transition-delay: 160ms; }
  .fab-social__menu .fab-social__item:nth-child(6) { transition-delay: 200ms; }
  .fab-social__menu .fab-social__item:nth-child(7) { transition-delay: 240ms; }
}

@media (prefers-reduced-motion: reduce) {
  .fab-social__menu .fab-social__item {
    opacity: 1;
    transform: none;
    transition-delay: 0ms;
  }
  .fab-social.is-open .fab-social__menu .fab-social__item {
    opacity: 1;
    transform: none;
  }
}