/* ========================================
   Custom styles — Kuzmich Studio
   ======================================== */

/* --- Social widget --- */
.kz-social-widget {
  position: fixed;
  right: 3rem;
  bottom: 3rem;
  z-index: 100;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.2rem;
}

.kz-social-widget__list {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
  pointer-events: none;
}

.kz-social-widget__item {
  opacity: 0;
  visibility: hidden;
  transform: translateY(1.6rem) scale(0.6);
  transition:
    opacity 0.28s ease,
    transform 0.32s cubic-bezier(0.34, 1.4, 0.64, 1),
    visibility 0.28s ease;
}

.kz-social-widget.is-open .kz-social-widget__list {
  pointer-events: auto;
}

.kz-social-widget.is-open .kz-social-widget__item {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.kz-social-widget.is-open .kz-social-widget__item:nth-child(1) {
  transition-delay: 0.05s;
}

.kz-social-widget.is-open .kz-social-widget__item:nth-child(2) {
  transition-delay: 0.1s;
}

.kz-social-widget.is-open .kz-social-widget__item:nth-child(3) {
  transition-delay: 0.15s;
}

.kz-social-widget.is-open .kz-social-widget__item:nth-child(4) {
  transition-delay: 0.2s;
}

.kz-social-widget__link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 4.8rem;
  height: 4.8rem;
  border-radius: 50%;
  background-color: var(--base-opp);
  color: var(--base);
  text-decoration: none;
  box-shadow: 0 0.6rem 1.8rem rgba(0, 0, 0, 0.18);
  transition: transform 0.25s ease, background-color 0.25s ease, color 0.25s ease;
}

.kz-social-widget__link i {
  font-size: 2.2rem;
  line-height: 1;
}

.no-touch .kz-social-widget__link:hover {
  transform: scale(1.08);
  background-color: var(--accent);
  color: var(--t-opp-bright, #161616);
}

.kz-social-widget__link--telegram:hover {
  background-color: #2aabee;
  color: #fff;
}

.kz-social-widget__link--whatsapp:hover {
  background-color: #25d366;
  color: #fff;
}

.kz-social-widget__link--email:hover {
  background-color: var(--accent);
  color: var(--t-opp-bright, #161616);
}

.kz-social-widget__link--linkedin:hover {
  background-color: #0a66c2;
  color: #fff;
}

.kz-social-widget__toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 5.6rem;
  height: 5.6rem;
  padding: 0;
  border: none;
  border-radius: 50%;
  background-color: var(--accent);
  color: var(--t-opp-bright, #161616);
  cursor: pointer;
  box-shadow: 0 0.8rem 2.4rem rgba(var(--accent-rgb), 0.35);
  transition: transform 0.25s ease, background-color 0.25s ease;
}

.kz-social-widget__toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.no-touch .kz-social-widget__toggle:hover {
  transform: scale(1.06);
}

.kz-social-widget__toggle-icon {
  position: absolute;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 2.4rem;
  line-height: 1;
  transition: opacity 0.2s ease, transform 0.25s ease;
}

.kz-social-widget__toggle-icon--chat {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

.kz-social-widget__toggle-icon--close {
  opacity: 0;
  transform: rotate(-90deg) scale(0.5);
}

.kz-social-widget.is-open .kz-social-widget__toggle-icon--chat {
  opacity: 0;
  transform: rotate(90deg) scale(0.5);
}

.kz-social-widget.is-open .kz-social-widget__toggle-icon--close {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

/* Pulse rings */
.kz-social-widget__pulse,
.kz-social-widget__pulse::before,
.kz-social-widget__pulse::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  pointer-events: none;
}

.kz-social-widget__pulse::before,
.kz-social-widget__pulse::after {
  border: 2px solid var(--accent);
  animation: kz-social-pulse 2.4s ease-out infinite;
}

.kz-social-widget__pulse::after {
  animation-delay: 1.2s;
}

.kz-social-widget.is-open .kz-social-widget__pulse::before,
.kz-social-widget.is-open .kz-social-widget__pulse::after {
  animation: none;
  opacity: 0;
}

@keyframes kz-social-pulse {
  0% {
    transform: scale(1);
    opacity: 0.55;
  }
  100% {
    transform: scale(1.75);
    opacity: 0;
  }
}

/* Keep "to top" clear of the widget */
#to-top.btn-to-top {
  right: auto;
  left: 3rem;
}

@media only screen and (min-width: 768px) {
  .kz-social-widget {
    right: 6rem;
    bottom: 4rem;
  }

  .kz-social-widget__toggle {
    width: 6rem;
    height: 6rem;
  }

  .kz-social-widget__toggle-icon {
    font-size: 2.6rem;
  }

  .kz-social-widget__link {
    width: 5.2rem;
    height: 5.2rem;
  }

  .kz-social-widget__link i {
    font-size: 2.4rem;
  }

  #to-top.btn-to-top {
    left: 6rem;
    right: auto;
  }
}

@media only screen and (min-width: 1600px) {
  .kz-social-widget {
    right: 9rem;
  }

  #to-top.btn-to-top {
    left: 9rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .kz-social-widget__pulse::before,
  .kz-social-widget__pulse::after {
    animation: none;
  }

  .kz-social-widget__item,
  .kz-social-widget__toggle-icon,
  .kz-social-widget__link {
    transition: none;
  }
}