/**
 * Sofia AI Webchat - Design Clean & Minimalista
 * Versão: 5.0
 */

/* ==========================================
   VARIÁVEIS
   ========================================== */
:root {
  --sofia-green: #42b983;
  --sofia-green-dark: #3aa876;
  --sofia-green-light: #e8f5e9;
  --sofia-white: #ffffff;
  --sofia-gray-50: #f9fafb;
  --sofia-gray-100: #f3f4f6;
  --sofia-gray-200: #e5e7eb;
  --sofia-gray-300: #d1d5db;
  --sofia-gray-500: #6b7280;
  --sofia-gray-700: #374151;
  --sofia-gray-900: #111827;
  --sofia-shadow: 0 10px 40px rgba(0, 0, 0, 0.12);
  --sofia-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --sofia-radius: 16px;
  --sofia-radius-sm: 8px;
  --sofia-transition: 0.25s ease;
}

/* ==========================================
   CONTAINER
   ========================================== */
.ultrathink-webchat-container {
  position: fixed;
  bottom: 24px;
  left: 24px;
  z-index: 99999;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* ==========================================
   BOTÃO TOGGLE
   ========================================== */
.ultrathink-toggle-btn {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--sofia-green);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--sofia-shadow);
  transition: transform var(--sofia-transition), box-shadow var(--sofia-transition);
  position: relative;
}

.ultrathink-toggle-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 12px 48px rgba(66, 185, 131, 0.35);
}

.ultrathink-toggle-btn:active {
  transform: scale(0.95);
}

.ultrathink-toggle-btn svg {
  width: 28px;
  height: 28px;
  color: white;
  transition: transform var(--sofia-transition);
}

.ultrathink-toggle-btn:hover svg {
  transform: scale(1.1);
}

/* Badge */
.ultrathink-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  min-width: 20px;
  height: 20px;
  background: #ef4444;
  color: white;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 0 6px;
  border: 2px solid white;
}

.ultrathink-badge.active {
  display: flex;
}

/* Ícones */
.ultrathink-icon-chat,
.ultrathink-icon-close {
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ==========================================
   JANELA DO CHAT
   ========================================== */
.ultrathink-chat-window {
  position: absolute;
  bottom: 72px;
  left: 0;
  width: 380px;
  height: 560px;
  background: var(--sofia-white);
  border-radius: var(--sofia-radius);
  box-shadow: var(--sofia-shadow);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px) scale(0.96);
  transition: all var(--sofia-transition);
}

.ultrathink-chat-window.ultrathink-active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

/* ==========================================
   HEADER
   ========================================== */
.ultrathink-header {
  background: var(--sofia-green);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

.ultrathink-header-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.ultrathink-avatar {
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}

.ultrathink-header-text h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: white;
}

.ultrathink-status {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 2px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.9);
}

.ultrathink-status-dot {
  width: 8px;
  height: 8px;
  background: #4ade80;
  border-radius: 50%;
}

/* Botões do Header */
.ultrathink-header-actions {
  display: flex;
  gap: 8px;
}

.ultrathink-header-actions button {
  width: 32px;
  height: 32px;
  background: rgba(255, 255, 255, 0.15);
  border: none;
  border-radius: var(--sofia-radius-sm);
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--sofia-transition);
}

.ultrathink-header-actions button:hover {
  background: rgba(255, 255, 255, 0.25);
}

.ultrathink-header-actions button svg {
  width: 18px;
  height: 18px;
}

/* ==========================================
   ÁREA DE MENSAGENS
   ========================================== */
.ultrathink-messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  background: var(--sofia-gray-50);
}

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

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

.ultrathink-messages::-webkit-scrollbar-thumb {
  background: var(--sofia-gray-300);
  border-radius: 2px;
}

/* ==========================================
   MENSAGENS
   ========================================== */
.ultrathink-message {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
  animation: messageIn 0.3s ease;
}

@keyframes messageIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.ultrathink-message-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}

.ultrathink-bot-message .ultrathink-message-avatar {
  background: var(--sofia-green-light);
}

.ultrathink-user-message .ultrathink-message-avatar {
  background: var(--sofia-gray-200);
  order: 2;
}

.ultrathink-message-content {
  max-width: 75%;
  padding: 12px 16px;
  border-radius: var(--sofia-radius);
  line-height: 1.5;
}

.ultrathink-bot-message .ultrathink-message-content {
  background: var(--sofia-white);
  color: var(--sofia-gray-700);
  border-radius: 4px 16px 16px 16px;
  box-shadow: var(--sofia-shadow-sm);
}

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

.ultrathink-user-message .ultrathink-message-content {
  background: var(--sofia-green);
  color: white;
  border-radius: 16px 4px 16px 16px;
}

.ultrathink-message-content p {
  margin: 0;
  font-size: 14px;
}

.ultrathink-message-time {
  display: block;
  font-size: 11px;
  opacity: 0.6;
  margin-top: 6px;
}

/* ==========================================
   RESPOSTAS RÁPIDAS
   ========================================== */
.ultrathink-quick-replies {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.ultrathink-quick-reply {
  background: var(--sofia-white);
  border: 1px solid var(--sofia-gray-200);
  border-radius: 20px;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--sofia-gray-700);
  cursor: pointer;
  transition: all var(--sofia-transition);
}

.ultrathink-quick-reply:hover {
  background: var(--sofia-green);
  border-color: var(--sofia-green);
  color: white;
}

/* ==========================================
   ÁREA DE INPUT
   ========================================== */
.ultrathink-input-area {
  padding: 16px 20px;
  background: var(--sofia-white);
  border-top: 1px solid var(--sofia-gray-100);
  flex-shrink: 0;
}

.ultrathink-form {
  display: flex;
  gap: 10px;
  align-items: center;
}

.ultrathink-input {
  flex: 1;
  padding: 12px 16px;
  border: 1px solid var(--sofia-gray-200);
  border-radius: 24px;
  font-size: 14px;
  outline: none;
  transition: border-color var(--sofia-transition), box-shadow var(--sofia-transition);
}

.ultrathink-input:focus {
  border-color: var(--sofia-green);
  box-shadow: 0 0 0 3px rgba(66, 185, 131, 0.1);
}

.ultrathink-input::placeholder {
  color: var(--sofia-gray-500);
}

.ultrathink-send-btn {
  width: 44px;
  height: 44px;
  background: var(--sofia-green);
  border: none;
  border-radius: 50%;
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--sofia-transition), transform var(--sofia-transition);
  flex-shrink: 0;
}

.ultrathink-send-btn:hover {
  background: var(--sofia-green-dark);
  transform: scale(1.05);
}

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

.ultrathink-send-btn svg {
  width: 20px;
  height: 20px;
}

/* Powered by */
.ultrathink-powered {
  text-align: center;
  font-size: 11px;
  color: var(--sofia-gray-500);
  margin-top: 12px;
}

.ultrathink-powered strong {
  color: var(--sofia-green);
}

/* ==========================================
   INDICADOR DE DIGITAÇÃO
   ========================================== */
.ultrathink-typing-indicator {
  display: flex;
  gap: 4px;
  padding: 8px 0;
}

.ultrathink-typing-indicator span {
  width: 8px;
  height: 8px;
  background: var(--sofia-gray-400);
  border-radius: 50%;
  animation: typing 1.4s ease-in-out infinite;
}

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

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

@keyframes typing {
  0%, 60%, 100% {
    transform: translateY(0);
    opacity: 0.4;
  }
  30% {
    transform: translateY(-8px);
    opacity: 1;
  }
}

/* ==========================================
   NOTIFICAÇÃO
   ========================================== */
.ultrathink-notification {
  position: fixed;
  bottom: 96px;
  left: 24px;
  background: var(--sofia-white);
  padding: 14px 18px;
  border-radius: var(--sofia-radius-sm);
  box-shadow: var(--sofia-shadow);
  max-width: 260px;
  animation: slideIn 0.3s ease;
  z-index: 99998;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.ultrathink-notification strong {
  display: block;
  color: var(--sofia-gray-900);
  font-size: 14px;
  margin-bottom: 4px;
}

.ultrathink-notification p {
  margin: 0;
  color: var(--sofia-gray-500);
  font-size: 13px;
}

/* ==========================================
   RESPONSIVO
   ========================================== */
@media (max-width: 480px) {
  .ultrathink-webchat-container {
    bottom: 16px;
    left: 16px;
    right: 16px;
  }

  .ultrathink-chat-window {
    width: calc(100vw - 32px);
    height: calc(100vh - 120px);
    max-height: 600px;
    bottom: 76px;
  }

  .ultrathink-toggle-btn {
    width: 56px;
    height: 56px;
  }
}

/* ==========================================
   DARK MODE
   ========================================== */
@media (prefers-color-scheme: dark) {
  .ultrathink-chat-window {
    background: var(--sofia-gray-900);
  }

  .ultrathink-messages {
    background: var(--sofia-gray-900);
  }

  .ultrathink-bot-message .ultrathink-message-content {
    background: var(--sofia-gray-700);
    color: var(--sofia-gray-100);
  }

  .ultrathink-input-area {
    background: var(--sofia-gray-900);
    border-top-color: var(--sofia-gray-700);
  }

  .ultrathink-input {
    background: var(--sofia-gray-700);
    border-color: var(--sofia-gray-700);
    color: var(--sofia-gray-100);
  }

  .ultrathink-quick-reply {
    background: var(--sofia-gray-700);
    border-color: var(--sofia-gray-700);
    color: var(--sofia-gray-100);
  }
}

/* ==========================================
   ACESSIBILIDADE
   ========================================== */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--sofia-green);
  outline-offset: 2px;
}

/* Print */
@media print {
  .ultrathink-webchat-container {
    display: none !important;
  }
}