/**
 * AI Verify - Advanced Frontend Chat Assistant Styles
 * Professional, modern design matching the main plugin
 */

/* ========================================
   THEME VARIABLES
   ======================================== */

.ai-verify-assistant-wrapper {
  /* Light theme (default) */
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --bg-hover: #e2e8f0;
  --border-color: #e2e8f0;
  --border-hover: #cbd5e1;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-tertiary: #94a3b8;
  --accent-primary: #acd2bf;
  --accent-hover: #8fc4a8;
  --accent-light: rgba(172, 210, 191, 0.1);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
    Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Dark theme */
.ai-verify-assistant-wrapper.s-dark {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --bg-hover: #475569;
  --border-color: #334155;
  --border-hover: #475569;
  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-tertiary: #94a3b8;
  --accent-light: rgba(172, 210, 191, 0.15);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6);
}

/* ========================================
   LAYOUT STRUCTURE
   ======================================== */

.ai-verify-assistant-wrapper {
  max-width: 100%;
  margin: 0 auto;
  background: var(--bg-primary);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

/* Hero Header */
.assistant-hero {
  background: linear-gradient(135deg, #141816 0%, #23332a 100%);
  padding: 48px 40px;
  text-align: center;
  color: white;
  position: relative;
  overflow: hidden;
}

.assistant-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="20" height="20" patternUnits="userSpaceOnUse"><path d="M 20 0 L 0 0 0 20" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
  opacity: 0.3;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin: 0 0 16px 0;
  line-height: 1.2;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: #e0f5eb !important;
}

.hero-title svg {
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

.hero-subtitle {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.95);
  margin: 0;
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.6;
}

/* Main Container */
.assistant-container {
  display: flex;
  height: 75vh;
  min-height: 600px;
  max-height: 900px;
  background: var(--bg-primary);
}

/* ========================================
   SIDEBAR
   ======================================== */

.assistant-sidebar {
  width: 280px;
  background: var(--bg-tertiary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
}

.sidebar-header {
  padding: 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.sidebar-title {
  font-size: 1rem;
  font-weight: 700;
  margin: 0;
  color: var(--text-primary);
}

.new-chat-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0px 16px;
  background: var(--accent-primary);
  color: white;
  border: none;
  border-radius: 10px;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.new-chat-btn:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.new-chat-btn svg {
  flex-shrink: 0;
}

/* Conversation History */
.conversation-history {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
}

.conversation-history::-webkit-scrollbar {
  width: 6px;
}

.conversation-history::-webkit-scrollbar-track {
  background: transparent;
}

.conversation-history::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 3px;
}

.conversation-history::-webkit-scrollbar-thumb:hover {
  background: var(--border-hover);
}

.no-history {
  text-align: center;
  color: var(--text-tertiary);
  font-size: 0.875rem;
  padding: 40px 20px;
  font-style: italic;
}

.conversation-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  margin-bottom: 8px;
  background: var(--bg-secondary);
  border: 2px solid transparent;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
}

.conversation-item:hover {
  background: var(--bg-hover);
  border-color: var(--accent-primary);
  transform: translateX(4px);
}

.conversation-item.active {
  background: var(--accent-light);
  border-color: var(--accent-primary);
}

.conversation-info {
  flex: 1;
  min-width: 0;
}

.conversation-title {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 4px;
}

.conversation-time {
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

.delete-conversation {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  border-radius: 8px;
  color: var(--text-tertiary);
  cursor: pointer;
  opacity: 0;
  transition: all 0.2s ease;
}

.conversation-item:hover .delete-conversation {
  opacity: 1;
}

.delete-conversation:hover {
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
}

/* ========================================
   CHAT MAIN AREA
   ======================================== */

.chat-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--bg-primary);
  position: relative;
}

/* Chat Messages Container */
.chat-messages-main {
  flex: 1;
  overflow-y: auto;
  padding: 32px;
  scroll-behavior: smooth;
}

.chat-messages-main::-webkit-scrollbar {
  width: 8px;
}

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

.chat-messages-main::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

.chat-messages-main::-webkit-scrollbar-thumb:hover {
  background: var(--border-hover);
}

/* Chat Message */
.chat-message {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
  opacity: 0;
  animation: fadeIn 0.3s ease forwards;
}

@keyframes fadeIn {
  to {
    opacity: 1;
  }
}

.message-user {
  flex-direction: row-reverse;
  margin-left: auto;
  max-width: 85%;
}

.message-assistant,
.message-system,
.message-error {
  max-width: 90%;
}

/* Message Avatar */
.message-avatar {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.875rem;
  color: white;
  box-shadow: var(--shadow-md);
}

.message-user .message-avatar {
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
}

.message-assistant .message-avatar {
  background: linear-gradient(
    135deg,
    var(--accent-primary) 0%,
    var(--accent-hover) 100%
  );
}

.message-system .message-avatar {
  background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
  font-size: 1.25rem;
}

.message-error .message-avatar {
  background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
  font-size: 1.25rem;
}

/* Message Content */
.message-content {
  flex: 1;
  min-width: 0;
}

.message-text {
  padding: 16px 20px;
  border-radius: 16px;
  line-height: 1.7;
  font-size: 0.9375rem;
  word-wrap: break-word;
  position: relative;
}

.message-user .message-text {
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
  color: white;
  border-bottom-right-radius: 4px;
}

.message-assistant .message-text {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  border-bottom-left-radius: 4px;
}

.message-system .message-text {
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.3);
  color: var(--text-primary);
  border-radius: 12px;
}

.message-error .message-text {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #dc2626;
  border-radius: 12px;
}

.s-dark .message-error .message-text {
  color: #fca5a5;
}

/* Message Text Formatting */
.message-text strong {
  font-weight: 700;
  color: inherit;
}

.message-text em {
  font-style: italic;
}

.message-text code {
  background: rgba(0, 0, 0, 0.05);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", Consolas,
    "Courier New", monospace;
  font-size: 0.875em;
}

.s-dark .message-text code {
  background: rgba(255, 255, 255, 0.1);
}

.message-text pre {
  background: rgba(0, 0, 0, 0.05);
  padding: 12px;
  border-radius: 8px;
  overflow-x: auto;
  margin: 12px 0;
}

.s-dark .message-text pre {
  background: rgba(255, 255, 255, 0.05);
}

.message-text pre code {
  background: none;
  padding: 0;
}

.message-text ul {
  margin: 12px 0;
  padding-left: 24px;
}

.message-text li {
  margin-bottom: 8px;
  line-height: 1.6;
}

.message-text a {
  color: var(--accent-primary);
  text-decoration: underline;
  font-weight: 500;
}

.message-text a:hover {
  color: var(--accent-hover);
}

.message-user .message-text a {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: underline;
}

/* Message Time */
.message-time {
  margin-top: 8px;
  font-size: 0.75rem;
  color: var(--text-tertiary);
  font-weight: 500;
}

/* ========================================
   TOOLS & SOURCES
   ======================================== */

/* Tools Used */
.tools-used {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.tool-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  color: #2563eb;
  animation: slideDown 0.3s ease;
}

.s-dark .tool-badge {
  background: rgba(59, 130, 246, 0.15);
  color: #60a5fa;
}

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

/* Sources */
.message-sources {
  margin-top: 16px;
  padding: 16px;
  background: var(--accent-light);
  border-left: 3px solid var(--accent-primary);
  border-radius: 8px;
  animation: slideUp 0.3s ease;
}

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

.sources-title {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--text-secondary);
  margin-bottom: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.source-link {
  display: block;
  padding: 8px 12px;
  margin-bottom: 6px;
  background: var(--bg-secondary);
  border-radius: 6px;
  font-size: 0.875rem;
  color: #6a8b7a;
  text-decoration: none;
  transition: all 0.2s ease;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.source-link:hover {
  background: var(--bg-hover);
  color: var(--accent-hover);
  transform: translateX(4px);
}

.source-link:last-child {
  margin-bottom: 0;
}

/* ========================================
   TYPING INDICATOR
   ======================================== */

.typing-indicator .message-text {
  padding: 12px 20px;
}

.typing-dots {
  display: flex;
  gap: 6px;
}

.typing-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--text-tertiary);
  animation: typing 1.4s infinite;
}

.typing-dots span:nth-child(2) {
  animation-delay: 0.2s;
}

.typing-dots span:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes typing {
  0%,
  60%,
  100% {
    opacity: 0.3;
    transform: translateY(0);
  }
  30% {
    opacity: 1;
    transform: translateY(-8px);
  }
}

/* ========================================
   INPUT AREA
   ======================================== */

.chat-input-area {
  padding: 24px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  position: relative;
}

/* Stop Button */
.stop-generating-btn {
  position: absolute;
  top: -48px;
  left: 50%;
  transform: translateX(-50%);
  display: none;
  align-items: center;
  gap: 8px;
  padding: 0px 24px;
  background: #ef4444;
  color: white;
  border: none;
  border-radius: 24px;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  transition: all 0.2s ease;
  z-index: 10;
}

.stop-generating-btn:hover {
  background: #dc2626;
  transform: translateX(-50%) translateY(-2px);
}

/* Input Container */
.chat-input-container-main {
  display: flex;
  gap: 12px;
  align-items: flex-end;
}

#chatInput {
  flex: 1;
  min-height: 52px;
  max-height: 150px;
  padding: 14px 18px;
  background: var(--bg-tertiary);
  border: 2px solid var(--border-color);
  border-radius: 16px;
  font-size: 0.9375rem;
  font-family: inherit;
  color: var(--text-primary);
  resize: none;
  transition: all 0.2s ease;
  line-height: 1.5;
}

#chatInput:focus {
  outline: none;
  border-color: var(--accent-primary);
  background: var(--bg-secondary);
  box-shadow: 0 0 0 3px var(--accent-light);
}

#chatInput::placeholder {
  color: var(--text-tertiary);
}

#chatInput:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Send Button */
#chatSendBtn {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(
    135deg,
    var(--accent-primary) 0%,
    var(--accent-hover) 100%
  );
  border: none;
  border-radius: 16px;
  color: white;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: var(--shadow-md);
}

#chatSendBtn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

#chatSendBtn:active:not(:disabled) {
  transform: translateY(0);
}

#chatSendBtn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Example Prompts */
.chat-examples {
  display: flex;
  gap: 10px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.chat-example-prompt {
  padding: 0px 16px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.chat-example-prompt:hover {
  background: var(--accent-light);
  border-color: var(--accent-primary);
  color: var(--text-primary);
  transform: translateY(-2px);
}

/* ========================================
   NOTIFICATIONS
   ======================================== */

.chat-notification {
  position: fixed;
  bottom: 32px;
  right: 32px;
  padding: 16px 24px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  box-shadow: var(--shadow-xl);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  z-index: 10000;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.3s ease;
}

.chat-notification.show {
  opacity: 1;
  transform: translateY(0);
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

@media (max-width: 1024px) {
  .assistant-sidebar {
    width: 240px;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }
}

@media (max-width: 768px) {
  .ai-verify-assistant-wrapper {
    border-radius: 0;
  }

  .assistant-hero {
    padding: 32px 24px;
  }

  .hero-title {
    font-size: 1.75rem;
    flex-direction: column;
  }

  .hero-subtitle {
    font-size: 0.9375rem;
  }

  .assistant-container {
    flex-direction: column;
    height: auto;
    min-height: 80vh;
  }

  .assistant-sidebar {
    width: 100%;
    max-height: 200px;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }

  .sidebar-header {
    padding: 16px;
  }

  .new-chat-btn {
    padding: 8px 12px;
    font-size: 0.8125rem;
  }

  .conversation-history {
    padding: 8px;
  }

  .conversation-item {
    padding: 10px 12px;
  }

  .chat-messages-main {
    padding: 20px 16px;
  }

  .chat-message {
    gap: 12px;
  }

  .message-avatar {
    width: 36px;
    height: 36px;
    font-size: 0.75rem;
  }

  .message-text {
    padding: 12px 16px;
    font-size: 0.875rem;
  }

  .message-user,
  .message-assistant,
  .message-system,
  .message-error {
    max-width: 95%;
  }

  .chat-input-area {
    padding: 16px;
  }

  #chatInput {
    font-size: 0.875rem;
    padding: 12px 16px;
  }

  #chatSendBtn {
    width: 48px;
    height: 48px;
  }

  .chat-examples {
    gap: 8px;
  }

  .chat-example-prompt {
    padding: 6px 12px;
    font-size: 0.75rem;
  }

  .stop-generating-btn {
    top: -44px;
    padding: 0px 20px;
    font-size: 0.8125rem;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.5rem;
  }

  .hero-subtitle {
    font-size: 0.875rem;
  }

  .sidebar-header {
    flex-direction: column;
    align-items: stretch;
  }

  .new-chat-btn {
    width: 100%;
    justify-content: center;
  }

  .chat-input-container-main {
    flex-direction: column;
    align-items: stretch;
  }

  #chatSendBtn {
    width: 100%;
    height: 48px;
  }

  .tools-used {
    flex-direction: column;
  }

  .tool-badge {
    width: 100%;
    justify-content: center;
  }
}

/* ========================================
   ACCESSIBILITY
   ======================================== */

/* Focus visible for keyboard navigation */
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .ai-verify-assistant-wrapper {
    --border-color: currentColor;
  }

  .chat-message {
    border: 2px solid currentColor;
  }
}

/* ========================================
   CUSTOM SCROLLBAR (Webkit browsers)
   ======================================== */

*::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

*::-webkit-scrollbar-track {
  background: transparent;
}

*::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

*::-webkit-scrollbar-thumb:hover {
  background: var(--border-hover);
}

/* ========================================
   PRINT STYLES
   ======================================== */

@media print {
  .assistant-sidebar,
  .chat-input-area,
  .stop-generating-btn,
  .delete-conversation {
    display: none !important;
  }

  .assistant-container {
    height: auto;
    display: block;
  }

  .chat-messages-main {
    padding: 20px;
  }

  .chat-message {
    page-break-inside: avoid;
  }
}

/* ========================================
   LOADING STATES
   ======================================== */

.loading {
  pointer-events: none;
  opacity: 0.6;
}

.skeleton {
  background: linear-gradient(
    90deg,
    var(--bg-tertiary) 0%,
    var(--bg-hover) 50%,
    var(--bg-tertiary) 100%
  );
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s ease-in-out infinite;
}

@keyframes skeleton-loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* ========================================
   UTILITY CLASSES
   ======================================== */

.hidden {
  display: none !important;
}

.invisible {
  visibility: hidden !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}