/*
 * Madi-Plan Agent - CSS Chat Widget
 * Widget de chat moderne, minimal et élégant
 * Compatible avec tous les thèmes WordPress
 * Design responsive avec mode sombre/clair automatique
 */

/* === VARIABLES CSS === */
:root {
  /* Couleurs principales */
  --chat-primary: #0073aa;
  --chat-primary-dark: #005177;
  --chat-primary-light: #0085ba;
  
  /* Mode clair */
  --chat-bg: #ffffff;
  --chat-surface: #f8f9fa;
  --chat-border: #e1e5e9;
  --chat-text: #2c3e50;
  --chat-text-secondary: #6c757d;
  --chat-shadow: rgba(0, 0, 0, 0.1);
  --chat-shadow-lg: rgba(0, 0, 0, 0.15);
  
  /* Couleurs des messages */
  --chat-user-bg: #0073aa;
  --chat-user-text: #ffffff;
  --chat-bot-bg: #f1f3f4;
  --chat-bot-text: #2c3e50;
  
  /* États */
  --chat-success: #28a745;
  --chat-warning: #ffc107;
  --chat-error: #dc3545;
  --chat-info: #17a2b8;
  
  /* Typographie */
  --chat-font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --chat-font-size-xs: 11px;
  --chat-font-size-sm: 13px;
  --chat-font-size-base: 14px;
  --chat-font-size-lg: 16px;
  
  /* Espacements */
  --chat-spacing-xs: 4px;
  --chat-spacing-sm: 8px;
  --chat-spacing-md: 12px;
  --chat-spacing-lg: 16px;
  --chat-spacing-xl: 20px;
  --chat-spacing-2xl: 24px;
  
  /* Dimensions */
  --chat-widget-width: 380px;
  --chat-widget-height: 520px;
  --chat-header-height: 64px;
  --chat-input-height: 48px;
  --chat-trigger-size: 56px;
  
  /* Bordures et rayons */
  --chat-radius-sm: 6px;
  --chat-radius-md: 8px;
  --chat-radius-lg: 12px;
  --chat-radius-xl: 16px;
  --chat-radius-round: 50%;
  
  /* Transitions */
  --chat-transition-fast: 0.15s ease;
  --chat-transition-normal: 0.25s ease;
  --chat-transition-slow: 0.35s ease;
  --chat-transition-bounce: 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* Z-index */
  --chat-z-widget: 9999;
  --chat-z-overlay: 10000;
  --chat-z-modal: 10001;
}

/* === MODE SOMBRE === */
@media (prefers-color-scheme: dark) {
  :root {
    --chat-bg: #1a1a1a;
    --chat-surface: #2d2d2d;
    --chat-border: #404040;
    --chat-text: #e4e4e7;
    --chat-text-secondary: #a1a1aa;
    --chat-shadow: rgba(0, 0, 0, 0.3);
    --chat-shadow-lg: rgba(0, 0, 0, 0.4);
    --chat-bot-bg: #374151;
    --chat-bot-text: #f3f4f6;
  }
}

/* Force le mode sombre avec une classe */
.madi-chat-dark {
  --chat-bg: #1a1a1a;
  --chat-surface: #2d2d2d;
  --chat-border: #404040;
  --chat-text: #e4e4e7;
  --chat-text-secondary: #a1a1aa;
  --chat-shadow: rgba(0, 0, 0, 0.3);
  --chat-shadow-lg: rgba(0, 0, 0, 0.4);
  --chat-bot-bg: #374151;
  --chat-bot-text: #f3f4f6;
}

/* === BASE ET RESET === */
.madi-chat-widget,
.madi-chat-widget *,
.madi-chat-widget *::before,
.madi-chat-widget *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

.madi-chat-widget {
  font-family: var(--chat-font-family);
  font-size: var(--chat-font-size-base);
  line-height: 1.5;
  color: var(--chat-text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* === CONTENEUR PRINCIPAL === */
.madi-chat-container {
  position: fixed;
  bottom: var(--chat-spacing-2xl);
  right: var(--chat-spacing-2xl);
  z-index: var(--chat-z-widget);
  font-family: var(--chat-font-family);
}

/* === BOUTON DÉCLENCHEUR === */
.madi-chat-trigger {
  width: var(--chat-trigger-size);
  height: var(--chat-trigger-size);
  border-radius: var(--chat-radius-round);
  background: linear-gradient(135deg, var(--chat-primary), var(--chat-primary-dark));
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px var(--chat-shadow-lg);
  transition: all var(--chat-transition-normal);
  position: relative;
  overflow: hidden;
}

.madi-chat-trigger:hover {
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 8px 24px var(--chat-shadow-lg);
}

.madi-chat-trigger:active {
  transform: translateY(0) scale(0.98);
}

.madi-chat-trigger-icon {
  width: 24px;
  height: 24px;
  fill: white;
  transition: transform var(--chat-transition-fast);
}

.madi-chat-trigger.open .madi-chat-trigger-icon.chat-icon {
  transform: rotate(180deg) scale(0);
}

.madi-chat-trigger.open .madi-chat-trigger-icon.close-icon {
  transform: rotate(0deg) scale(1);
}

.madi-chat-trigger-icon.close-icon {
  position: absolute;
  transform: rotate(-180deg) scale(0);
}

/* Indicator de nouveaux messages */
.madi-chat-trigger::after {
  content: '';
  position: absolute;
  top: 8px;
  right: 8px;
  width: 12px;
  height: 12px;
  background: var(--chat-error);
  border-radius: var(--chat-radius-round);
  border: 2px solid white;
  transform: scale(0);
  transition: transform var(--chat-transition-bounce);
}

.madi-chat-trigger.has-notification::after {
  transform: scale(1);
  animation: pulse-notification 2s infinite;
}

@keyframes pulse-notification {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
    transform: scale(1.1);
  }
}

/* === WIDGET PRINCIPAL === */
.madi-chat-widget {
  position: absolute;
  bottom: calc(var(--chat-trigger-size) + var(--chat-spacing-md));
  right: 0;
  width: var(--chat-widget-width);
  height: var(--chat-widget-height);
  background: var(--chat-bg);
  border-radius: var(--chat-radius-xl);
  box-shadow: 0 20px 40px var(--chat-shadow-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px) scale(0.95);
  transition: all var(--chat-transition-bounce);
  border: 1px solid var(--chat-border);
}

.madi-chat-widget.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

/* === HEADER DU CHAT === */
.madi-chat-header {
  background: linear-gradient(135deg, var(--chat-primary), var(--chat-primary-dark));
  color: white;
  padding: var(--chat-spacing-lg);
  display: flex;
  align-items: center;
  gap: var(--chat-spacing-md);
  min-height: var(--chat-header-height);
  position: relative;
}

.madi-chat-avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--chat-radius-round);
  background: rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: var(--chat-font-size-lg);
  backdrop-filter: blur(10px);
}

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

.madi-chat-title {
  font-weight: 600;
  font-size: var(--chat-font-size-lg);
  margin-bottom: var(--chat-spacing-xs);
}

.madi-chat-status {
  display: flex;
  align-items: center;
  gap: var(--chat-spacing-xs);
  font-size: var(--chat-font-size-sm);
  opacity: 0.9;
}

.madi-chat-status-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--chat-radius-round);
  background: var(--chat-success);
  animation: pulse-status 2s infinite;
}

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

.madi-chat-minimize {
  background: rgba(255, 255, 255, 0.2);
  border: none;
  color: white;
  width: 32px;
  height: 32px;
  border-radius: var(--chat-radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--chat-transition-fast);
  backdrop-filter: blur(10px);
}

.madi-chat-minimize:hover {
  background: rgba(255, 255, 255, 0.3);
}

.madi-chat-minimize svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

/* === ZONE DE MESSAGES === */
.madi-chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--chat-spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--chat-spacing-md);
  scroll-behavior: smooth;
}

.madi-chat-messages::-webkit-scrollbar {
  width: 6px;
}

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

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

.madi-chat-messages::-webkit-scrollbar-thumb:hover {
  background: var(--chat-text-secondary);
}

/* === MESSAGES === */
.madi-chat-message {
  display: flex;
  align-items: flex-end;
  gap: var(--chat-spacing-sm);
  animation: slideInMessage 0.3s ease-out;
}

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

.madi-chat-message.user {
  flex-direction: row-reverse;
  margin-left: var(--chat-spacing-2xl);
}

.madi-chat-message.bot {
  margin-right: var(--chat-spacing-2xl);
}

.madi-chat-message-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--chat-radius-round);
  background: var(--chat-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--chat-font-size-sm);
  font-weight: 600;
  color: var(--chat-text-secondary);
  flex-shrink: 0;
}

.madi-chat-message.user .madi-chat-message-avatar {
  background: var(--chat-user-bg);
  color: var(--chat-user-text);
}

.madi-chat-message-content {
  max-width: 75%;
  position: relative;
}

.madi-chat-message-bubble {
  padding: var(--chat-spacing-sm) var(--chat-spacing-md);
  border-radius: var(--chat-radius-lg);
  word-wrap: break-word;
  line-height: 1.4;
  position: relative;
}

.madi-chat-message.user .madi-chat-message-bubble {
  background: var(--chat-user-bg);
  color: var(--chat-user-text);
  border-bottom-right-radius: var(--chat-radius-sm);
}

.madi-chat-message.bot .madi-chat-message-bubble {
  background: var(--chat-bot-bg);
  color: var(--chat-bot-text);
  border-bottom-left-radius: var(--chat-radius-sm);
}

.madi-chat-message-time {
  font-size: var(--chat-font-size-xs);
  color: var(--chat-text-secondary);
  margin-top: var(--chat-spacing-xs);
  text-align: right;
}

.madi-chat-message.bot .madi-chat-message-time {
  text-align: left;
}

/* === INDICATEUR DE FRAPPE === */
.madi-chat-typing {
  display: flex;
  align-items: center;
  gap: var(--chat-spacing-sm);
  padding: var(--chat-spacing-md);
  opacity: 0;
  transform: translateY(10px);
  transition: all var(--chat-transition-normal);
}

.madi-chat-typing.active {
  opacity: 1;
  transform: translateY(0);
}

.madi-chat-typing-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--chat-radius-round);
  background: var(--chat-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--chat-font-size-sm);
  font-weight: 600;
  color: var(--chat-text-secondary);
}

.madi-chat-typing-bubble {
  background: var(--chat-bot-bg);
  border-radius: var(--chat-radius-lg);
  border-bottom-left-radius: var(--chat-radius-sm);
  padding: var(--chat-spacing-sm) var(--chat-spacing-md);
  display: flex;
  gap: 3px;
  align-items: center;
}

.madi-chat-typing-dot {
  width: 6px;
  height: 6px;
  border-radius: var(--chat-radius-round);
  background: var(--chat-text-secondary);
  animation: typingDot 1.4s infinite ease-in-out both;
}

.madi-chat-typing-dot:nth-child(1) { animation-delay: -0.32s; }
.madi-chat-typing-dot:nth-child(2) { animation-delay: -0.16s; }
.madi-chat-typing-dot:nth-child(3) { animation-delay: 0s; }

@keyframes typingDot {
  0%, 80%, 100% {
    transform: scale(0.8);
    opacity: 0.5;
  }
  40% {
    transform: scale(1);
    opacity: 1;
  }
}

/* === ZONE DE SAISIE === */
.madi-chat-input-container {
  padding: var(--chat-spacing-lg);
  background: var(--chat-surface);
  border-top: 1px solid var(--chat-border);
}

.madi-chat-input-wrapper {
  display: flex;
  align-items: flex-end;
  gap: var(--chat-spacing-sm);
  background: var(--chat-bg);
  border: 1px solid var(--chat-border);
  border-radius: var(--chat-radius-xl);
  padding: var(--chat-spacing-sm);
  transition: border-color var(--chat-transition-fast);
}

.madi-chat-input-wrapper:focus-within {
  border-color: var(--chat-primary);
  box-shadow: 0 0 0 1px var(--chat-primary);
}

.madi-chat-input {
  flex: 1;
  border: none;
  background: transparent;
  color: var(--chat-text);
  font-size: var(--chat-font-size-base);
  font-family: inherit;
  resize: none;
  outline: none;
  max-height: 120px;
  min-height: 20px;
  line-height: 1.4;
  padding: var(--chat-spacing-xs) var(--chat-spacing-sm);
}

.madi-chat-input::placeholder {
  color: var(--chat-text-secondary);
}

.madi-chat-send-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--chat-radius-round);
  background: var(--chat-primary);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--chat-transition-fast);
  flex-shrink: 0;
}

.madi-chat-send-btn:hover {
  background: var(--chat-primary-dark);
  transform: scale(1.05);
}

.madi-chat-send-btn:active {
  transform: scale(0.95);
}

.madi-chat-send-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.madi-chat-send-btn svg {
  width: 18px;
  height: 18px;
  fill: white;
  transition: transform var(--chat-transition-fast);
}

.madi-chat-send-btn:hover svg {
  transform: translateX(1px);
}

/* === BOUTONS D'ACTION === */
.madi-chat-actions {
  display: flex;
  gap: var(--chat-spacing-xs);
  margin-right: var(--chat-spacing-sm);
}

.madi-chat-action-btn {
  width: 28px;
  height: 28px;
  border-radius: var(--chat-radius-sm);
  background: transparent;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--chat-text-secondary);
  transition: all var(--chat-transition-fast);
}

.madi-chat-action-btn:hover {
  background: var(--chat-border);
  color: var(--chat-text);
}

.madi-chat-action-btn svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

/* === UPLOAD DE FICHIERS === */
.madi-chat-upload-area {
  position: relative;
  margin-bottom: var(--chat-spacing-sm);
}

.madi-chat-file-input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}

.madi-chat-upload-preview {
  display: flex;
  flex-wrap: wrap;
  gap: var(--chat-spacing-sm);
  margin-bottom: var(--chat-spacing-sm);
}

.madi-chat-file-preview {
  display: flex;
  align-items: center;
  gap: var(--chat-spacing-sm);
  padding: var(--chat-spacing-sm);
  background: var(--chat-surface);
  border: 1px solid var(--chat-border);
  border-radius: var(--chat-radius-sm);
  font-size: var(--chat-font-size-sm);
  max-width: 200px;
}

.madi-chat-file-info {
  flex: 1;
  min-width: 0;
}

.madi-chat-file-name {
  font-weight: 500;
  color: var(--chat-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.madi-chat-file-size {
  color: var(--chat-text-secondary);
}

.madi-chat-file-remove {
  background: none;
  border: none;
  color: var(--chat-error);
  cursor: pointer;
  padding: 2px;
  border-radius: var(--chat-radius-sm);
  transition: background var(--chat-transition-fast);
}

.madi-chat-file-remove:hover {
  background: rgba(220, 53, 69, 0.1);
}

/* === ÉTATS DE CONNEXION === */
.madi-chat-connection-status {
  position: absolute;
  top: 100%;
  left: var(--chat-spacing-lg);
  right: var(--chat-spacing-lg);
  background: var(--chat-warning);
  color: white;
  padding: var(--chat-spacing-sm) var(--chat-spacing-md);
  border-radius: 0 0 var(--chat-radius-sm) var(--chat-radius-sm);
  font-size: var(--chat-font-size-sm);
  text-align: center;
  transform: translateY(-100%);
  opacity: 0;
  transition: all var(--chat-transition-normal);
}

.madi-chat-connection-status.visible {
  transform: translateY(0);
  opacity: 1;
}

.madi-chat-connection-status.error {
  background: var(--chat-error);
}

.madi-chat-connection-status.success {
  background: var(--chat-success);
}

/* === RESPONSIVE DESIGN === */
@media (max-width: 480px) {
  .madi-chat-container {
    bottom: var(--chat-spacing-lg);
    right: var(--chat-spacing-lg);
    left: var(--chat-spacing-lg);
  }
  
  .madi-chat-widget {
    width: 100%;
    height: calc(100vh - 120px);
    position: fixed;
    bottom: calc(var(--chat-trigger-size) + var(--chat-spacing-lg));
    right: var(--chat-spacing-lg);
    left: var(--chat-spacing-lg);
  }
  
  .madi-chat-trigger {
    position: fixed;
    bottom: var(--chat-spacing-lg);
    right: var(--chat-spacing-lg);
  }
  
  .madi-chat-message.user {
    margin-left: var(--chat-spacing-lg);
  }
  
  .madi-chat-message.bot {
    margin-right: var(--chat-spacing-lg);
  }
}

@media (max-width: 360px) {
  :root {
    --chat-widget-width: 100%;
    --chat-spacing-lg: 12px;
    --chat-spacing-md: 8px;
  }
  
  .madi-chat-header {
    padding: var(--chat-spacing-md);
  }
  
  .madi-chat-messages {
    padding: var(--chat-spacing-md);
  }
  
  .madi-chat-input-container {
    padding: var(--chat-spacing-md);
  }
}

/* === ACCESSIBILITÉ === */
@media (prefers-reduced-motion: reduce) {
  .madi-chat-widget,
  .madi-chat-trigger,
  .madi-chat-message,
  .madi-chat-typing {
    animation: none !important;
    transition: none !important;
  }
  
  .madi-chat-typing-dot {
    animation: none;
  }
  
  .madi-chat-status-dot {
    animation: none;
  }
}

/* Focus visible pour l'accessibilité */
@supports selector(:focus-visible) {
  .madi-chat-trigger:focus {
    outline: none;
  }
  
  .madi-chat-trigger:focus-visible {
    outline: 2px solid var(--chat-primary);
    outline-offset: 2px;
  }
  
  .madi-chat-input:focus {
    outline: none;
  }
  
  .madi-chat-send-btn:focus {
    outline: none;
  }
  
  .madi-chat-send-btn:focus-visible {
    outline: 2px solid white;
    outline-offset: 2px;
  }
}

/* === HIGH CONTRAST MODE === */
@media (prefers-contrast: high) {
  :root {
    --chat-border: #808080;
    --chat-shadow: rgba(0, 0, 0, 0.8);
    --chat-shadow-lg: rgba(0, 0, 0, 0.9);
  }
  
  .madi-chat-widget,
  .madi-chat-message-bubble,
  .madi-chat-input-wrapper {
    border-width: 2px;
  }
}

/* === ANIMATIONS AVANCÉES === */
@keyframes bounceIn {
  0% {
    opacity: 0;
    transform: scale(0.3) translateY(20px);
  }
  50% {
    opacity: 1;
    transform: scale(1.05) translateY(-5px);
  }
  70% {
    transform: scale(0.98) translateY(2px);
  }
  100% {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.madi-chat-widget.first-load {
  animation: bounceIn 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* === THÈME PERSONNALISÉ === */
.madi-chat-theme-custom {
  /* Les variables CSS peuvent être surchargées ici */
}

/* === NOTIFICATION TOAST === */
.madi-chat-toast {
  position: fixed;
  top: var(--chat-spacing-2xl);
  right: var(--chat-spacing-2xl);
  background: var(--chat-bg);
  border: 1px solid var(--chat-border);
  border-radius: var(--chat-radius-lg);
  padding: var(--chat-spacing-md) var(--chat-spacing-lg);
  box-shadow: var(--chat-shadow-lg);
  z-index: var(--chat-z-modal);
  opacity: 0;
  transform: translateX(100%);
  transition: all var(--chat-transition-normal);
  max-width: 300px;
}

.madi-chat-toast.visible {
  opacity: 1;
  transform: translateX(0);
}

.madi-chat-toast.success {
  border-left: 4px solid var(--chat-success);
}

.madi-chat-toast.error {
  border-left: 4px solid var(--chat-error);
}

.madi-chat-toast.info {
  border-left: 4px solid var(--chat-info);
}

/* === FIN DU CSS === */