/* NLWeb Chat Widget — floating chat for IndentiaDB docs */

:root {
  --nlweb-primary: #4051b5;
  --nlweb-primary-hover: #303fa0;
  --nlweb-bg: #1e1e2e;
  --nlweb-bg-input: #2a2a3c;
  --nlweb-bg-msg-user: #4051b5;
  --nlweb-bg-msg-bot: #2a2a3c;
  --nlweb-text: #e0e0e0;
  --nlweb-text-muted: #a0a0b0;
  --nlweb-border: #3a3a4c;
  --nlweb-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  --nlweb-radius: 12px;
}

[data-md-color-scheme="default"] {
  --nlweb-bg: #ffffff;
  --nlweb-bg-input: #f5f5f7;
  --nlweb-bg-msg-user: #4051b5;
  --nlweb-bg-msg-bot: #f0f0f5;
  --nlweb-text: #1a1a2e;
  --nlweb-text-muted: #6a6a7a;
  --nlweb-border: #e0e0e8;
  --nlweb-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
}

/* Floating action button */
.nlweb-fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--nlweb-primary);
  color: #fff;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(64, 81, 181, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s, background 0.2s;
  z-index: 9998;
}

.nlweb-fab:hover {
  background: var(--nlweb-primary-hover);
  transform: scale(1.08);
}

.nlweb-fab svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

.nlweb-fab[data-open="true"] .nlweb-icon-chat {
  display: none;
}

.nlweb-fab[data-open="false"] .nlweb-icon-close {
  display: none;
}

/* Chat panel */
.nlweb-panel {
  position: fixed;
  bottom: 96px;
  right: 24px;
  width: 400px;
  max-width: calc(100vw - 48px);
  height: 520px;
  max-height: calc(100vh - 140px);
  background: var(--nlweb-bg);
  border: 1px solid var(--nlweb-border);
  border-radius: var(--nlweb-radius);
  box-shadow: var(--nlweb-shadow);
  display: none;
  flex-direction: column;
  overflow: hidden;
  z-index: 9999;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
}

.nlweb-panel[data-visible="true"] {
  display: flex;
  animation: nlweb-slide-up 0.25s ease-out;
}

@keyframes nlweb-slide-up {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Header */
.nlweb-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--nlweb-border);
  flex-shrink: 0;
}

.nlweb-header-icon {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: var(--nlweb-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.nlweb-header-icon svg {
  width: 16px;
  height: 16px;
  fill: #fff;
}

.nlweb-header-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--nlweb-text);
  flex: 1;
}

.nlweb-header-subtitle {
  font-size: 11px;
  color: var(--nlweb-text-muted);
}

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

.nlweb-messages::-webkit-scrollbar {
  width: 4px;
}

.nlweb-messages::-webkit-scrollbar-thumb {
  background: var(--nlweb-border);
  border-radius: 2px;
}

/* Welcome message */
.nlweb-welcome {
  text-align: center;
  padding: 24px 16px;
  color: var(--nlweb-text-muted);
  font-size: 13px;
  line-height: 1.6;
}

.nlweb-welcome strong {
  display: block;
  font-size: 15px;
  color: var(--nlweb-text);
  margin-bottom: 8px;
}

/* Message bubbles */
.nlweb-msg {
  max-width: 85%;
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 13px;
  line-height: 1.55;
  word-wrap: break-word;
}

.nlweb-msg-user {
  align-self: flex-end;
  background: var(--nlweb-bg-msg-user);
  color: #fff;
  border-bottom-right-radius: 4px;
}

.nlweb-msg-bot {
  align-self: flex-start;
  background: var(--nlweb-bg-msg-bot);
  color: var(--nlweb-text);
  border-bottom-left-radius: 4px;
}

.nlweb-msg-bot p {
  margin: 0 0 8px;
}

.nlweb-msg-bot p:last-child {
  margin-bottom: 0;
}

.nlweb-msg-bot code {
  background: rgba(0, 0, 0, 0.15);
  padding: 1px 5px;
  border-radius: 4px;
  font-size: 12px;
  font-family: "JetBrains Mono", monospace;
}

.nlweb-msg-bot a {
  color: #7c8aff;
  text-decoration: none;
}

.nlweb-msg-bot a:hover {
  text-decoration: underline;
}

[data-md-color-scheme="default"] .nlweb-msg-bot a {
  color: var(--nlweb-primary);
}

[data-md-color-scheme="default"] .nlweb-msg-bot code {
  background: rgba(0, 0, 0, 0.06);
}

/* Sources */
.nlweb-sources {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--nlweb-border);
  font-size: 11px;
  color: var(--nlweb-text-muted);
}

.nlweb-sources-title {
  font-weight: 600;
  margin-bottom: 4px;
}

.nlweb-sources a {
  display: block;
  color: #7c8aff;
  text-decoration: none;
  padding: 2px 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nlweb-sources a:hover {
  text-decoration: underline;
}

[data-md-color-scheme="default"] .nlweb-sources a {
  color: var(--nlweb-primary);
}

/* Typing indicator */
.nlweb-typing {
  display: flex;
  gap: 4px;
  padding: 10px 14px;
  align-self: flex-start;
  background: var(--nlweb-bg-msg-bot);
  border-radius: 10px;
  border-bottom-left-radius: 4px;
}

.nlweb-typing span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--nlweb-text-muted);
  animation: nlweb-bounce 1.2s infinite;
}

.nlweb-typing span:nth-child(2) { animation-delay: 0.15s; }
.nlweb-typing span:nth-child(3) { animation-delay: 0.3s; }

@keyframes nlweb-bounce {
  0%, 60%, 100% { transform: translateY(0); }
  30% { transform: translateY(-4px); }
}

/* Error message */
.nlweb-error {
  align-self: flex-start;
  background: rgba(220, 50, 50, 0.12);
  color: #e05555;
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 13px;
  max-width: 85%;
}

/* Input area */
.nlweb-input-area {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-top: 1px solid var(--nlweb-border);
  flex-shrink: 0;
}

.nlweb-input {
  flex: 1;
  background: var(--nlweb-bg-input);
  border: 1px solid var(--nlweb-border);
  border-radius: 8px;
  padding: 10px 14px;
  color: var(--nlweb-text);
  font-size: 13px;
  font-family: inherit;
  outline: none;
  resize: none;
  min-height: 20px;
  max-height: 80px;
  line-height: 1.4;
}

.nlweb-input::placeholder {
  color: var(--nlweb-text-muted);
}

.nlweb-input:focus {
  border-color: var(--nlweb-primary);
}

.nlweb-send {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--nlweb-primary);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background 0.15s;
}

.nlweb-send:hover {
  background: var(--nlweb-primary-hover);
}

.nlweb-send:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.nlweb-send svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

/* Mobile */
@media (max-width: 480px) {
  .nlweb-panel {
    bottom: 0;
    right: 0;
    width: 100vw;
    height: 100vh;
    max-height: 100vh;
    max-width: 100vw;
    border-radius: 0;
  }

  .nlweb-fab {
    bottom: 16px;
    right: 16px;
  }
}