/* ==========================================================================
   Runwae LLM Chat Slide-Out Drawer
   Based on AHL/Tillio patterns
   ========================================================================== */

/* ==========================================================================
   Chat Drawer Overlay
   ========================================================================== */

.llm-chat-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.3);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-slow);
  z-index: var(--z-modal-backdrop);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
}

.llm-chat-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* ==========================================================================
   Chat Drawer Container
   ========================================================================== */

.llm-chat-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: 400px;
  height: 100vh;
  height: 100dvh; /* Dynamic viewport height for mobile */
  background: var(--color-bg-card);
  transform: translateX(100%);
  transition: transform var(--transition-slow) cubic-bezier(0.4, 0, 0.2, 1);
  z-index: var(--z-chat);
  display: flex;
  flex-direction: column;
  box-shadow: -4px 0 30px rgba(0, 0, 0, 0.15);
}

.llm-chat-drawer.active {
  transform: translateX(0);
}

/* ==========================================================================
   Chat Header
   ========================================================================== */

.llm-chat-header {
  padding: 18px 20px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-hover) 100%);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

.llm-chat-header-title {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.llm-chat-header-title ion-icon {
  font-size: 24px;
}

.llm-chat-header h6 {
  margin: 0;
  font-weight: 600;
  font-size: var(--font-size-md);
}

.llm-chat-header-status {
  font-size: var(--font-size-xs);
  opacity: 0.8;
  display: flex;
  align-items: center;
  gap: 4px;
}

.llm-chat-header-status .status-dot {
  width: 6px;
  height: 6px;
  background: #4ade80;
  border-radius: var(--radius-full);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.llm-chat-close {
  background: rgba(255, 255, 255, 0.15);
  border: none;
  color: #ffffff;
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.llm-chat-close:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: scale(1.05);
}

.llm-chat-close ion-icon {
  font-size: 20px;
}

/* ==========================================================================
   Messages Area
   ========================================================================== */

.llm-chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-lg);
  background: var(--color-bg-body);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

/* Custom scrollbar */
.llm-chat-messages::-webkit-scrollbar {
  width: 6px;
}

.llm-chat-messages::-webkit-scrollbar-track {
  background: transparent;
}

.llm-chat-messages::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 3px;
}

.llm-chat-messages::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-muted);
}

/* ==========================================================================
   Message Bubbles
   ========================================================================== */

.llm-message {
  max-width: 85%;
  padding: 12px 16px;
  border-radius: var(--radius-2xl);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  animation: messageSlideIn 0.3s ease;
}

@keyframes messageSlideIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* User message (right aligned) */
.llm-message.user {
  background: var(--color-primary);
  color: #ffffff;
  margin-left: auto;
  border-bottom-right-radius: 4px;
}

/* Assistant message (left aligned) */
.llm-message.assistant {
  background: var(--color-bg-card);
  color: var(--color-text-primary);
  margin-right: auto;
  border-bottom-left-radius: 4px;
  border: 1px solid var(--color-border);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

/* Message with avatar */
.llm-message-wrapper {
  display: flex;
  gap: var(--spacing-sm);
  align-items: flex-end;
}

.llm-message-wrapper.user {
  flex-direction: row-reverse;
}

.llm-message-avatar {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-hover));
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.llm-message-avatar ion-icon {
  font-size: 16px;
  color: #ffffff;
}

/* Message timestamp */
.llm-message-time {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-top: 4px;
  text-align: right;
}

.llm-message.assistant .llm-message-time {
  text-align: left;
}

/* ==========================================================================
   Typing Indicator
   ========================================================================== */

.llm-typing {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 16px 20px;
}

.llm-typing span {
  width: 8px;
  height: 8px;
  background: var(--color-text-muted);
  border-radius: var(--radius-full);
  animation: typingBounce 1.4s infinite ease-in-out both;
}

.llm-typing span:nth-child(1) {
  animation-delay: -0.32s;
}

.llm-typing span:nth-child(2) {
  animation-delay: -0.16s;
}

@keyframes typingBounce {
  0%, 80%, 100% {
    transform: scale(0.6);
    opacity: 0.5;
  }
  40% {
    transform: scale(1);
    opacity: 1;
  }
}

/* ==========================================================================
   Input Area
   ========================================================================== */

.llm-chat-input {
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--color-bg-card);
  border-top: 1px solid var(--color-border);
  display: flex;
  gap: var(--spacing-sm);
  align-items: flex-end;
  flex-shrink: 0;
}

.llm-chat-input-wrapper {
  flex: 1;
  position: relative;
}

.llm-chat-input textarea {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 12px 16px;
  padding-right: 44px;
  resize: none;
  font-family: inherit;
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  min-height: 48px;
  max-height: 120px;
  background: var(--color-bg-input);
  color: var(--color-text-primary);
  transition: all var(--transition-fast);
}

.llm-chat-input textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  background: var(--color-bg-card);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.llm-chat-input textarea::placeholder {
  color: var(--color-text-muted);
}

/* Send button */
.llm-chat-send {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.llm-chat-send:hover:not(:disabled) {
  background: var(--color-primary-hover);
  transform: scale(1.05);
  box-shadow: var(--shadow-hover);
}

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

.llm-chat-send ion-icon {
  color: #ffffff;
  font-size: 20px;
}

/* ==========================================================================
   Chat Toggle Button (in header)
   ========================================================================== */

.llm-chat-toggle {
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.llm-chat-toggle:hover {
  background-color: var(--color-primary-light);
}

.llm-chat-toggle ion-icon {
  font-size: 22px;
  color: var(--color-text-primary);
  transition: color var(--transition-fast);
}

.llm-chat-toggle:hover ion-icon {
  color: var(--color-primary);
}

/* Notification badge */
.llm-chat-toggle .badge {
  position: absolute;
  top: 2px;
  right: 2px;
  width: 8px;
  height: 8px;
  background: var(--color-danger);
  border-radius: var(--radius-full);
  border: 2px solid var(--color-bg-header);
}

/* ==========================================================================
   Welcome Message
   ========================================================================== */

.llm-chat-welcome {
  text-align: center;
  padding: var(--spacing-xl);
  color: var(--color-text-secondary);
}

.llm-chat-welcome ion-icon {
  font-size: 48px;
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
}

.llm-chat-welcome h5 {
  color: var(--color-text-heading);
  margin-bottom: var(--spacing-sm);
}

.llm-chat-welcome p {
  font-size: var(--font-size-sm);
  margin: 0;
}

/* Quick actions/suggestions */
.llm-chat-suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  justify-content: center;
  margin-top: var(--spacing-md);
}

.llm-chat-suggestion {
  padding: 8px 14px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.llm-chat-suggestion:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-light);
}

/* ==========================================================================
   Error State
   ========================================================================== */

.llm-message.error {
  background: rgba(255, 94, 58, 0.1);
  border: 1px solid var(--color-danger);
  color: var(--color-danger);
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 480px) {
  .llm-chat-drawer {
    width: 100%;
    border-radius: 0;
  }

  .llm-chat-messages {
    padding: var(--spacing-md);
  }

  .llm-message {
    max-width: 90%;
  }

  .llm-chat-input {
    padding: var(--spacing-sm) var(--spacing-md);
  }
}

@media (min-width: 481px) and (max-width: 768px) {
  .llm-chat-drawer {
    width: 360px;
  }
}

@media (min-width: 1400px) {
  .llm-chat-drawer {
    width: 440px;
  }
}

/* ==========================================================================
   Dark Mode Adjustments
   ========================================================================== */

[data-theme="dark"] .llm-chat-drawer {
  box-shadow: -4px 0 40px rgba(0, 0, 0, 0.4);
}

[data-theme="dark"] .llm-message.assistant {
  background: var(--color-bg-input);
}

[data-theme="dark"] .llm-chat-overlay {
  background: rgba(0, 0, 0, 0.5);
}