/* GateKeeper Support Chatbot Widget */

#gk-chatbot {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

/* Toggle button */
#gk-chat-toggle {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: none;
  background: var(--md-primary-fg-color, #3f51b5);
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
  transition: transform 0.2s, box-shadow 0.2s;
}

#gk-chat-toggle:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
}

/* Panel */
#gk-chat-panel {
  width: 400px;
  height: 520px;
  border-radius: 12px;
  background: var(--md-default-bg-color, #fff);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--md-default-fg-color--lightest, #e0e0e0);
}

/* Header */
#gk-chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--md-primary-fg-color, #3f51b5);
  color: white;
  flex-shrink: 0;
}

#gk-chat-title {
  font-weight: 600;
  font-size: 15px;
}

#gk-chat-close {
  background: none;
  border: none;
  color: white;
  font-size: 22px;
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
  opacity: 0.8;
}

#gk-chat-close:hover {
  opacity: 1;
}

/* Messages area */
#gk-chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.gk-msg {
  display: flex;
  max-width: 85%;
}

.gk-msg-user {
  align-self: flex-end;
}

.gk-msg-assistant {
  align-self: flex-start;
}

.gk-msg-content {
  padding: 10px 14px;
  border-radius: 12px;
  font-size: 14px;
  line-height: 1.5;
  word-wrap: break-word;
}

.gk-msg-user .gk-msg-content {
  background: var(--md-primary-fg-color, #3f51b5);
  color: white;
  border-bottom-right-radius: 4px;
}

.gk-msg-assistant .gk-msg-content {
  background: var(--md-code-bg-color, #f5f5f5);
  color: var(--md-default-fg-color, #333);
  border-bottom-left-radius: 4px;
}

/* Formatted content inside assistant messages */
.gk-msg-assistant .gk-msg-content p {
  margin: 0 0 8px 0;
}

.gk-msg-assistant .gk-msg-content p:last-child {
  margin-bottom: 0;
}

.gk-msg-assistant .gk-msg-content code {
  background: var(--md-default-fg-color--lightest, #e0e0e0);
  padding: 1px 5px;
  border-radius: 3px;
  font-size: 13px;
}

.gk-msg-assistant .gk-msg-content strong {
  font-weight: 600;
}

/* Loading animation */
.gk-loading {
  opacity: 0.6;
}

@keyframes gk-pulse {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

.gk-loading {
  animation: gk-pulse 1.2s ease-in-out infinite;
}

/* Error state */
.gk-error {
  color: var(--md-accent-fg-color, #d32f2f) !important;
  font-style: italic;
}

/* Input area */
#gk-chat-input-row {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  padding: 12px 16px;
  border-top: 1px solid var(--md-default-fg-color--lightest, #e0e0e0);
  flex-shrink: 0;
}

#gk-chat-input {
  flex: 1;
  resize: none;
  border: 1px solid var(--md-default-fg-color--lightest, #ccc);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 14px;
  font-family: inherit;
  line-height: 1.4;
  outline: none;
  background: var(--md-default-bg-color, #fff);
  color: var(--md-default-fg-color, #333);
  max-height: 120px;
}

#gk-chat-input:focus {
  border-color: var(--md-primary-fg-color, #3f51b5);
  box-shadow: 0 0 0 2px rgba(63, 81, 181, 0.15);
}

#gk-chat-send {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: var(--md-primary-fg-color, #3f51b5);
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background 0.2s;
}

#gk-chat-send:hover {
  filter: brightness(1.1);
}

#gk-chat-send:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Hidden state */
.gk-hidden {
  display: none !important;
}

/* Responsive: smaller screens */
@media (max-width: 480px) {
  #gk-chatbot {
    bottom: 12px;
    right: 12px;
  }

  #gk-chat-panel {
    width: calc(100vw - 24px);
    height: calc(100vh - 80px);
    border-radius: 12px;
  }
}

/* Dark mode adjustments — MkDocs Material sets [data-md-color-scheme="slate"] */
[data-md-color-scheme="slate"] .gk-msg-assistant .gk-msg-content {
  background: var(--md-code-bg-color, #2d2d2d);
}

[data-md-color-scheme="slate"] .gk-msg-assistant .gk-msg-content code {
  background: rgba(255, 255, 255, 0.1);
}

[data-md-color-scheme="slate"] #gk-chat-input {
  background: var(--md-default-bg-color, #1e1e1e);
  border-color: rgba(255, 255, 255, 0.12);
  color: var(--md-default-fg-color, #e0e0e0);
}