.trellis-chat-launcher {
  position: fixed;
  bottom: var(--space-4);
  right: var(--space-4);
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--color-green-600);
  border: none;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 90;
}

.trellis-chat-launcher svg {
  width: 28px;
  height: 28px;
  color: var(--color-white);
}

.trellis-chat-panel {
  position: fixed;
  bottom: calc(var(--space-4) + 72px);
  right: var(--space-4);
  width: 380px;
  max-height: 70vh;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  z-index: 95;
  opacity: 0;
  transform: scale(0.96) translateY(8px);
  pointer-events: none;
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.trellis-chat-panel.is-open {
  opacity: 1;
  transform: scale(1) translateY(0);
  pointer-events: auto;
}

.trellis-chat-header {
  background: var(--color-green-600);
  color: var(--color-white);
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

.trellis-chat-header strong {
  font-family: var(--font-heading);
}

.trellis-chat-close {
  background: none;
  border: none;
  color: var(--color-white);
  font-size: var(--text-xl);
  cursor: pointer;
  line-height: 1;
}

.trellis-chat-body {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.trellis-chat-msg {
  max-width: 85%;
  padding: 0.6rem 0.85rem;
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  line-height: 1.45;
  white-space: pre-wrap;
}

.trellis-chat-msg.bot {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  align-self: flex-start;
}

.trellis-chat-msg.visitor {
  background: var(--color-blue-600);
  color: var(--color-white);
  align-self: flex-end;
}

.trellis-chat-options {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-top: 0.25rem;
}

.trellis-chat-option {
  text-align: left;
  background: var(--color-white);
  border: 1px solid var(--color-blue-600);
  color: var(--color-blue-600);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.75rem;
  font-size: var(--text-sm);
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.trellis-chat-option:hover,
.trellis-chat-option:disabled {
  background: var(--color-blue-100);
}

.trellis-chat-option.is-escalate {
  border-color: var(--color-border);
  color: var(--color-muted);
}

.trellis-chat-capture {
  display: flex;
  gap: 0.4rem;
  margin-top: 0.25rem;
}

.trellis-chat-capture input {
  flex: 1;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
}

.trellis-chat-capture button {
  background: var(--color-green-600);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-sm);
  padding: 0 0.9rem;
  cursor: pointer;
  font-weight: 600;
}

@media (max-width: 480px) {
  .trellis-chat-panel {
    width: 100%;
    height: 100%;
    max-height: 100%;
    bottom: 0;
    right: 0;
    border-radius: 0;
  }
}