/* Помощник — кнопка внизу справа, всегда заметна */
.site-assistant {
  position: fixed;
  right: max(0.65rem, env(safe-area-inset-right, 0px));
  bottom: max(0.75rem, env(safe-area-inset-bottom, 0px));
  z-index: 140;
  font-family: var(--theme-font-body, "Segoe UI", Inter, Arial, sans-serif);
  font-size: 0.9rem;
  line-height: 1.45;
  --sa-bg: var(--surface, var(--theme-surface, #ffffff));
  --sa-text: var(--text, var(--theme-text, #18243d));
  --sa-muted: var(--muted, var(--theme-muted, #5f6d8c));
  --sa-border: var(--border, var(--theme-border, #d4deef));
  --sa-primary: var(--primary, var(--theme-primary, #1f57c3));
  --sa-soft: var(--surface-soft, var(--theme-surface-soft, #f7f9ff));
  --sa-shadow: var(--shadow, var(--theme-shadow, 0 14px 36px rgba(31, 87, 195, 0.12)));
  transition: transform 0.2s ease;
}

.site-assistant:hover,
.site-assistant:focus-within {
  opacity: 1;
  transform: none;
}

.site-assistant__fab {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 3rem;
  min-width: 3rem;
  padding: 0.45rem 0.85rem 0.45rem 0.65rem;
  border-radius: 999px;
  border: 2px solid color-mix(in srgb, var(--sa-primary) 45%, var(--sa-border));
  background: linear-gradient(
    165deg,
    color-mix(in srgb, var(--sa-primary) 18%, var(--sa-bg)) 0%,
    var(--sa-bg) 100%
  );
  color: var(--sa-text);
  font-size: 0.95rem;
  line-height: 1;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 4px 18px rgba(31, 87, 195, 0.28);
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.site-assistant__fab-icon {
  font-size: 1.25rem;
  line-height: 1;
}

.site-assistant__fab-label {
  font-size: 0.88rem;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

@media (max-width: 420px) {
  .site-assistant__fab-label {
    display: none;
  }
  .site-assistant__fab {
    width: 3rem;
    height: 3rem;
    min-width: 3rem;
    padding: 0;
    border-radius: 50%;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .site-assistant__fab {
    transition: box-shadow 0.22s ease, border-color 0.22s ease, transform 0.2s ease;
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-assistant {
    transition: none;
  }
  .site-assistant:hover,
  .site-assistant:focus-within {
    transform: none;
  }
  .site-assistant__fab {
    transition: none;
  }
  .site-assistant__fab:hover {
    transform: none;
  }
}

.site-assistant__fab:hover,
.site-assistant__fab:focus-visible {
  color: var(--sa-text);
  border-color: color-mix(in srgb, var(--sa-primary) 45%, var(--sa-border));
  box-shadow: 0 4px 14px rgba(31, 87, 195, 0.22);
  transform: scale(1.06);
}

.site-assistant__fab:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--sa-primary) 65%, #fff);
  outline-offset: 3px;
}

.site-assistant__fab[aria-expanded="true"] {
  background: color-mix(in srgb, var(--sa-primary) 26%, var(--sa-bg));
  border-color: var(--sa-primary);
  color: #fff;
  box-shadow:
    0 0 0 2px color-mix(in srgb, var(--sa-primary) 35%, transparent),
    0 8px 28px rgba(31, 87, 195, 0.45);
}

.site-assistant__restore {
  position: fixed;
  right: max(0.65rem, env(safe-area-inset-right, 0px));
  bottom: max(0.75rem, env(safe-area-inset-bottom, 0px));
  z-index: 140;
  border: 2px solid color-mix(in srgb, var(--sa-primary, #1f57c3) 40%, var(--sa-border, #d4deef));
  border-radius: 999px;
  background: var(--sa-bg, #fff);
  color: var(--sa-text, #18243d);
  padding: 0.5rem 0.9rem;
  font: inherit;
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(31, 87, 195, 0.25);
}

.site-assistant__restore:hover {
  background: var(--sa-soft, #f7f9ff);
  border-color: var(--sa-primary, #1f57c3);
}

.site-assistant[hidden] {
  display: none !important;
}

.site-assistant__panel[hidden] {
  display: none !important;
  visibility: hidden !important;
  pointer-events: none !important;
}

.site-assistant__panel {
  position: absolute;
  right: 0;
  bottom: calc(100% + 0.55rem);
  width: min(100vw - 1.2rem, 24rem);
  /* не выше вьюпорта с запасом под FAB; внутри скроллится только лог */
  max-height: min(78vh, 34rem, calc(100vh - 5.5rem));
  min-height: 0;
  display: flex;
  flex-direction: column;
  background: var(--sa-bg);
  color: var(--sa-text);
  border: 1px solid var(--sa-border);
  border-radius: 16px;
  box-shadow: var(--sa-shadow);
  overflow: hidden;
}

.site-assistant__head,
.site-assistant__hint,
.site-assistant__quick-wrap,
.site-assistant__row {
  flex-shrink: 0;
}

.site-assistant__head {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--sa-border);
  background: linear-gradient(
    160deg,
    color-mix(in srgb, var(--sa-primary) 10%, var(--sa-soft)) 0%,
    var(--sa-soft) 65%,
    color-mix(in srgb, #fff 92%, var(--sa-soft)) 100%
  );
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.6rem;
}

.site-assistant__head-main {
  min-width: 0;
}

.site-assistant__head strong {
  display: block;
  font-size: 1rem;
}

.site-assistant__kbd-hint {
  font-size: 0.75rem;
  font-weight: 500;
  font-style: normal;
  opacity: 0.92;
}

.site-assistant__head span {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--sa-muted);
}

.site-assistant__status {
  margin-top: 0.35rem;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border: 1px solid var(--sa-border);
  border-radius: 999px;
  padding: 0.12rem 0.48rem;
  font-size: 0.72rem;
  color: var(--sa-muted);
  background: var(--sa-bg);
}

.site-assistant__status::before {
  content: "";
  width: 0.42rem;
  height: 0.42rem;
  border-radius: 50%;
  background: #7b8aa8;
}

.site-assistant__status[data-state="listening"]::before {
  background: #c62828;
}

.site-assistant__status[data-state="thinking"]::before {
  background: #f39c12;
}

.site-assistant__status[data-state="ready"]::before {
  background: #2e7d32;
}

.site-assistant__close {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  border: 1px solid var(--sa-border);
  background: var(--sa-bg);
  color: var(--sa-text);
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
}

.site-assistant__close:hover {
  background: var(--sa-soft);
}

.site-assistant__log {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  padding: 0.65rem 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.site-assistant__bubble {
  padding: 0.5rem 0.65rem;
  border-radius: 12px;
  max-width: 100%;
  word-wrap: break-word;
}

.site-assistant__bubble--bot {
  align-self: flex-start;
  background: var(--sa-soft);
  border: 1px solid var(--sa-border);
  color: var(--sa-text);
}

.site-assistant__bubble--user {
  align-self: flex-end;
  background: color-mix(in srgb, var(--sa-primary) 14%, var(--sa-bg));
  border: 1px solid color-mix(in srgb, var(--sa-primary) 28%, var(--sa-border));
}

.site-assistant__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: -0.1rem;
  padding-bottom: 0.1rem;
}

.site-assistant__action {
  border: 1px solid var(--sa-border);
  border-radius: 999px;
  background: var(--sa-bg);
  color: var(--sa-text);
  padding: 0.22rem 0.55rem;
  font: inherit;
  font-size: 0.78rem;
  cursor: pointer;
}

.site-assistant__action:hover {
  background: var(--sa-soft);
}

.site-assistant__action:disabled {
  opacity: 0.6;
  cursor: default;
}

.site-assistant__row {
  display: flex;
  gap: 0.35rem;
  padding: 0.55rem 0.65rem 0.75rem;
  border-top: 1px solid var(--sa-border);
  background: var(--sa-bg);
}

.site-assistant__input {
  flex: 1;
  min-width: 0;
  min-height: 44px;
  padding: 0.45rem 0.6rem;
  border: 1px solid var(--sa-border);
  border-radius: 10px;
  font: inherit;
  color: var(--sa-text);
  background: var(--sa-bg);
}

.site-assistant__input:focus-visible {
  outline: 2px solid var(--sa-primary);
  outline-offset: 1px;
}

.site-assistant__icon-btn {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  border: 1px solid var(--sa-border);
  background: var(--sa-bg);
  color: var(--sa-text);
  font-size: 1.15rem;
  cursor: pointer;
  touch-action: manipulation;
}

.site-assistant__icon-btn:hover:not(:disabled) {
  background: var(--sa-soft);
}

.site-assistant__icon-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.site-assistant__icon-btn.is-listening {
  background: color-mix(in srgb, #c62828 12%, var(--sa-bg));
  border-color: color-mix(in srgb, #c62828 35%, var(--sa-border));
}

.site-assistant__hint {
  padding: 0 0.85rem 0.65rem;
  font-size: 0.8rem;
  color: var(--sa-muted);
}

.site-assistant__hint a {
  color: var(--sa-primary);
  font-weight: 600;
}

.site-assistant__quick-wrap {
  padding: 0 0.65rem 0.45rem;
}

.site-assistant__quick-toggle {
  width: 100%;
  text-align: left;
  border: 1px solid var(--sa-border);
  border-radius: 10px;
  background: var(--sa-bg);
  color: var(--sa-text);
  padding: 0.35rem 0.55rem;
  font: inherit;
  font-size: 0.82rem;
  cursor: pointer;
}

.site-assistant__quick-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  padding-top: 0.45rem;
}

.site-assistant__quick-wrap.is-collapsed .site-assistant__quick-row {
  display: none;
}

@media (max-width: 520px) {
  .site-assistant {
    right: max(0.45rem, env(safe-area-inset-right, 0px));
    bottom: max(0.7rem, env(safe-area-inset-bottom, 0px));
  }

  .site-assistant__fab {
    width: 3.1rem;
    height: 3.1rem;
    min-width: 3.1rem;
    min-height: 3.1rem;
    font-size: 1.25rem;
  }
}

@media (max-width: 960px) {
  .site-assistant {
    right: max(0.45rem, env(safe-area-inset-right, 0px));
    bottom: max(0.55rem, env(safe-area-inset-bottom, 0px));
  }

  .site-assistant__panel {
    position: fixed;
    right: 0.35rem;
    left: 0.35rem;
    bottom: calc(4.2rem + max(0.45rem, env(safe-area-inset-bottom, 0px)));
    width: auto;
    max-height: calc(100vh - 6.4rem);
    border-radius: 14px;
  }

  .site-assistant__head {
    padding: 0.65rem 0.8rem;
  }

  .site-assistant__log {
    padding: 0.58rem 0.68rem;
  }

  .site-assistant__hint {
    padding: 0 0.68rem 0.55rem;
    font-size: 0.78rem;
  }
}