.chat-widget {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 500;
  font-family: var(--font-family);
}

.chat-widget__toggle {
  width: 56px;
  height: 56px;
  border: none;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-white);
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition), background-color var(--transition);
}

.chat-widget__toggle:hover {
  background: var(--color-primary-dark);
  transform: scale(1.05);
}

.chat-widget__toggle--hidden {
  transform: scale(0);
  opacity: 0;
  pointer-events: none;
}

.chat-widget__panel {
  position: absolute;
  bottom: calc(100% + 12px);
  right: 0;
  width: min(380px, calc(100vw - 2rem));
  height: min(520px, calc(100vh - 6rem));
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px) scale(0.96);
  transition: opacity var(--transition), visibility var(--transition), transform var(--transition);
}

.chat-widget__panel--open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.chat-widget__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  background: var(--color-primary);
  color: var(--color-white);
}

.chat-widget__title {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
}

.chat-widget__close {
  width: 36px;
  height: 36px;
  border: none;
  background: rgba(255, 255, 255, 0.15);
  color: var(--color-white);
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.125rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.chat-widget__close:hover {
  background: rgba(255, 255, 255, 0.25);
}

.chat-widget__messages {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  background: var(--color-bg-alt);
}

.chat-widget__message {
  max-width: 85%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  line-height: 1.5;
  animation: chatFadeIn 0.3s ease;
}

@keyframes chatFadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

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

.chat-widget__message--bot {
  align-self: flex-start;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

.chat-widget__message--user {
  align-self: flex-end;
  background: var(--color-primary);
  color: var(--color-white);
}

.chat-widget__message a {
  color: var(--color-primary);
  font-weight: 600;
  text-decoration: underline;
}

.chat-widget__message--user a {
  color: var(--color-white);
}

.chat-widget__links {
  margin: 0.5rem 0 0;
  padding: 0;
  list-style: none;
}

.chat-widget__links li {
  margin-bottom: 0.375rem;
}

.chat-widget__typing {
  align-self: flex-start;
  padding: 0.75rem 1rem;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  display: none;
  gap: 4px;
}

.chat-widget__typing--visible {
  display: flex;
}

.chat-widget__typing span {
  width: 8px;
  height: 8px;
  background: var(--color-text-muted);
  border-radius: 50%;
  animation: chatTyping 1.2s infinite;
}

.chat-widget__typing span:nth-child(2) { animation-delay: 0.2s; }
.chat-widget__typing span:nth-child(3) { animation-delay: 0.4s; }

@keyframes chatTyping {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-4px); opacity: 1; }
}

.chat-widget__form {
  display: flex;
  gap: 0.5rem;
  padding: 0.75rem;
  border-top: 1px solid var(--color-border);
  background: var(--color-white);
}

.chat-widget__input {
  flex: 1;
  padding: 0.625rem 0.875rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  font-family: inherit;
}

.chat-widget__send {
  width: 44px;
  height: 44px;
  border: none;
  border-radius: var(--radius-md);
  background: var(--color-accent);
  color: var(--color-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.chat-widget__send:hover {
  background: var(--color-accent-hover);
}

@media (max-width: 480px) {
  .chat-widget {
    bottom: 0;
    right: 0;
    left: 0;
  }

  .chat-widget__panel {
    position: fixed;
    bottom: 0;
    right: 0;
    left: 0;
    width: 100%;
    height: 100%;
    max-height: 100vh;
    border-radius: 0;
  }

  .chat-widget__toggle {
    position: fixed;
    bottom: 1rem;
    right: 1rem;
  }
}

body.cookie-banner-visible .chat-widget {
  bottom: calc(1.5rem + 80px);
}

@media (max-width: 480px) {
  body.cookie-banner-visible .chat-widget__toggle {
    bottom: calc(1rem + 80px);
  }
}