.messenger {
  position: fixed;
  left: 22px;
  bottom: 22px;
  z-index: 115;
  font-family: var(--font-ui, var(--font));
}

/* Правый столбец плавающих виджетов (плеер 22+56=78px, контактные иконки)
   должен оставаться доступным, поэтому чат смещаем левее него. */
.messenger[data-position="right"] {
  right: 90px;
  left: auto;
}

.messenger [hidden] {
  display: none !important;
}

.messenger .visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.messenger__launcher {
  position: relative;
  display: grid;
  isolation: isolate;
  width: 58px;
  height: 58px;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--button-bg, var(--accent)) 70%, var(--text) 30%);
  border-radius: 50%;
  background:
    radial-gradient(circle at 30% 20%, color-mix(in srgb, var(--button-bg, var(--accent)) 82%, white), transparent 60%),
    var(--button-bg, var(--accent));
  color: var(--button-text, var(--bg));
  box-shadow:
    0 14px 36px color-mix(in srgb, var(--bg) 55%, transparent),
    0 0 0 5px color-mix(in srgb, var(--button-bg, var(--accent)) 10%, transparent);
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), filter var(--transition);
}

.messenger__launcher:hover {
  transform: translateY(-3px);
  filter: brightness(1.04);
  box-shadow:
    0 18px 42px color-mix(in srgb, var(--bg) 62%, transparent),
    0 0 0 7px color-mix(in srgb, var(--button-bg, var(--accent)) 13%, transparent);
}

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

.messenger__launcher:focus-visible,
.messenger__panel button:focus-visible,
.messenger__panel a:focus-visible,
.messenger__panel textarea:focus-visible,
.messenger__panel input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.messenger__launcher-icon {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  line-height: 0;
}

/* Волны у свёрнутого чата при непрочитанных ответах — как у плеера. */
.messenger__wave {
  position: absolute;
  z-index: 0;
  inset: 0;
  border: 2px solid var(--button-bg, var(--accent));
  border-radius: 50%;
  opacity: 0;
  pointer-events: none;
}

.messenger__launcher.is-rippling .messenger__wave {
  animation: messenger-ripple 1.6s ease-out infinite;
  will-change: transform, opacity;
}

.messenger__launcher.is-rippling .messenger__wave:nth-of-type(2) { animation-delay: .8s; }

.messenger__launcher.is-rippling .messenger__launcher-icon {
  animation: messenger-unread-pulse 1s ease-in-out infinite alternate;
}

@keyframes messenger-ripple {
  0% {
    transform: scale(1);
    opacity: 1;
    box-shadow: 0 0 9px color-mix(in srgb, var(--button-bg, var(--accent)) 80%, transparent);
  }
  85%, 100% {
    transform: scale(2.25);
    opacity: 0;
    box-shadow: 0 0 18px transparent;
  }
}

@keyframes messenger-unread-pulse {
  to { transform: scale(1.1); filter: drop-shadow(0 0 7px color-mix(in srgb, var(--button-bg, var(--accent)) 65%, white)); }
}

/* Сохраняем заметный пульс даже с prefers-reduced-motion. */
@media (prefers-reduced-motion: reduce) {
  .messenger__launcher.is-rippling .messenger__wave {
    animation: messenger-ripple 2.8s ease-out infinite !important;
  }

  .messenger__launcher.is-rippling .messenger__launcher-icon {
    animation: messenger-unread-pulse 2s ease-in-out infinite alternate !important;
  }
}

.messenger__launcher-icon svg {
  width: 25px;
  height: 25px;
}

.messenger__badge {
  position: absolute;
  top: -4px;
  right: -4px;
  display: grid;
  min-width: 23px;
  height: 23px;
  padding: 0 6px;
  place-items: center;
  border: 2px solid var(--surface);
  border-radius: 999px;
  background: var(--danger);
  color: #fff;
  font-size: 10px;
  font-weight: 800;
  line-height: 1;
  box-shadow: 0 4px 12px color-mix(in srgb, var(--danger) 38%, transparent);
}

.messenger__panel {
  position: absolute;
  left: 0;
  bottom: 72px;
  display: flex;
  width: min(390px, calc(100vw - 32px));
  height: min(620px, calc(100dvh - 110px));
  min-height: 430px;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 22px;
  background: color-mix(in srgb, var(--surface) 96%, transparent);
  box-shadow: 0 30px 86px color-mix(in srgb, var(--bg) 60%, transparent);
  backdrop-filter: blur(18px);
  animation: messenger-panel-in 180ms cubic-bezier(0.2, 0.7, 0.3, 1) both;
}

.messenger[data-position="right"] .messenger__panel {
  right: 0;
  left: auto;
}

.messenger__panel::before {
  position: absolute;
  inset: 0 0 auto;
  height: 110px;
  background:
    radial-gradient(220px 120px at 18% 0%, color-mix(in srgb, var(--accent) 20%, transparent), transparent 74%),
    linear-gradient(180deg, color-mix(in srgb, var(--accent) 5%, transparent), transparent);
  content: "";
  pointer-events: none;
}

.messenger__header {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 15px 16px 14px;
  border-bottom: 1px solid var(--line);
}

.messenger__avatar {
  display: grid;
  width: 40px;
  height: 40px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
  border-radius: 13px;
  background: color-mix(in srgb, var(--accent) 12%, var(--surface-2));
  color: var(--accent);
}

.messenger__heading {
  display: grid;
  min-width: 0;
  flex: 1;
  gap: 3px;
}

.messenger__heading strong {
  overflow: hidden;
  color: var(--text);
  font-family: var(--font-heading, var(--font));
  font-size: 14px;
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.messenger__heading small {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-size: 10.5px;
}

.messenger__online-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--success) 13%, transparent);
}

.messenger__close {
  display: grid;
  width: 32px;
  height: 32px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: color-mix(in srgb, var(--surface-2) 80%, transparent);
  color: var(--muted);
  transition: color var(--transition), background var(--transition);
}

.messenger__close:hover {
  background: var(--surface-2);
  color: var(--text);
}

.messenger__body {
  display: flex;
  min-height: 0;
  flex: 1;
  flex-direction: column;
  overflow: hidden;
}

.messenger__channels {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 7px;
  padding: 12px 16px 10px;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface-2) 54%, transparent);
}

.messenger__channels > span {
  color: var(--muted-2);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.messenger__channel-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.messenger__channel {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  font-size: 10.5px;
  font-weight: 600;
  transition: border-color var(--transition), color var(--transition), transform var(--transition);
}

.messenger__channel:hover {
  transform: translateY(-1px);
  border-color: color-mix(in srgb, var(--accent) 42%, var(--line));
  color: var(--accent);
}

.messenger__channel .icon {
  width: 15px;
  height: 15px;
}

.messenger__messages {
  display: flex;
  min-height: 0;
  flex: 1;
  flex-direction: column;
  gap: 9px;
  overflow-y: auto;
  padding: 16px;
  scrollbar-width: thin;
  overscroll-behavior: contain;
}

.messenger__message {
  display: flex;
  max-width: 86%;
  flex-direction: column;
  gap: 3px;
  align-self: flex-start;
  animation: messenger-message-in 160ms ease both;
}

.messenger__message--visitor {
  align-self: flex-end;
}

.messenger__bubble {
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 14px 14px 14px 5px;
  background: var(--surface-2);
  color: var(--text);
  font-size: 12.5px;
  line-height: 1.5;
  overflow-wrap: anywhere;
  white-space: pre-wrap;
}

.messenger__message--visitor .messenger__bubble {
  border-color: color-mix(in srgb, var(--button-bg, var(--accent)) 60%, transparent);
  border-radius: 14px 14px 5px 14px;
  background: var(--button-bg, var(--accent));
  color: var(--button-text, var(--bg));
}

.messenger__message--system .messenger__bubble {
  border-style: dashed;
  color: var(--muted);
  font-size: 11px;
  text-align: center;
}

.messenger__message-meta {
  padding: 0 3px;
  color: var(--muted-2);
  font-size: 9px;
  font-variant-numeric: tabular-nums;
}

.messenger__message--visitor .messenger__message-meta {
  text-align: right;
}

.messenger__hint {
  margin: 0;
  padding: 0 16px 10px;
  color: var(--muted-2);
  font-size: 9.5px;
  line-height: 1.45;
}

.messenger__error {
  margin: 0 16px 10px;
  padding: 7px 9px;
  border: 1px solid color-mix(in srgb, var(--danger) 30%, transparent);
  border-radius: 8px;
  background: color-mix(in srgb, var(--danger) 9%, transparent);
  color: var(--danger);
  font-size: 10.5px;
}

.messenger__form {
  position: relative;
  z-index: 1;
  display: grid;
  flex: 0 0 auto;
  gap: 8px;
  padding: 11px 14px calc(12px + env(safe-area-inset-bottom));
  border-top: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 88%, var(--surface-2) 12%);
}

.messenger__name-field {
  display: grid;
  gap: 4px;
}

.messenger__name-field span {
  padding-left: 2px;
  color: var(--muted-2);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.messenger__name-field input {
  width: 100%;
  min-height: 32px;
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--input-bg);
  color: var(--text);
  font-size: 11.5px;
  outline: 0;
}

.messenger__name-field input:focus {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--line));
  background: var(--input-focus-bg);
}

.messenger__composer {
  display: flex;
  align-items: flex-end;
  gap: 8px;
}

.messenger__composer textarea {
  width: 100%;
  min-height: 41px;
  max-height: 112px;
  padding: 10px 12px;
  resize: none;
  overflow-y: auto;
  border: 1px solid var(--line-strong);
  border-radius: 13px;
  background: var(--input-bg);
  color: var(--text);
  font-size: 12.5px;
  line-height: 1.45;
  outline: 0;
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
}

.messenger__composer textarea::placeholder {
  color: var(--input-placeholder);
}

.messenger__composer textarea:focus {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--line));
  background: var(--input-focus-bg);
  box-shadow: 0 0 0 3px var(--focus-ring);
}

.messenger__send {
  display: grid;
  width: 41px;
  height: 41px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--button-bg, var(--accent)) 65%, transparent);
  border-radius: 50%;
  background: var(--button-bg, var(--accent));
  color: var(--button-text, var(--bg));
  transition: transform var(--transition), filter var(--transition), opacity var(--transition);
}

.messenger__send:hover {
  transform: translateY(-1px);
  filter: brightness(1.05);
}

.messenger__send:disabled {
  opacity: 0.55;
  cursor: wait;
}

.messenger__privacy {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 3px 10px;
  margin: 0;
  padding: 0 2px;
  color: var(--muted-2);
  font-size: 8.5px;
}

.messenger__privacy a {
  color: var(--muted);
  text-decoration: underline;
  text-underline-offset: 2px;
}

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

@keyframes messenger-panel-in {
  from { transform: translateY(8px) scale(0.98); opacity: 0; }
  to { transform: translateY(0) scale(1); opacity: 1; }
}

@keyframes messenger-message-in {
  from { transform: translateY(4px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

@media (max-width: 640px) {
  .messenger {
    left: 12px;
    bottom: calc(12px + env(safe-area-inset-bottom));
  }

  .messenger[data-position="right"] {
    right: 74px;
    left: auto;
  }

  /* Панель при правом размещении выравнивается к краю экрана (12px),
     а не к смещённой кнопке, чтобы не выходить за пределы вьюпорта. */
  .messenger[data-position="right"] .messenger__panel {
    right: -62px;
    left: auto;
  }

  .messenger__launcher {
    width: 52px;
    height: 52px;
  }

  .messenger__panel {
    bottom: 64px;
    width: calc(100vw - 24px);
    height: min(610px, calc(100dvh - 92px));
    min-height: 360px;
    border-radius: 19px;
  }

  .messenger__header {
    padding: 13px 14px 12px;
  }

  .messenger__messages {
    padding: 13px;
  }

  .messenger__form {
    padding-inline: 12px;
  }
}

@media (max-height: 560px) {
  .messenger__panel {
    height: calc(100dvh - 86px);
    min-height: 300px;
  }

  .messenger__channels {
    display: none;
  }
}