/* Reset e Variáveis CSS */
:root {
  --primary-purple: #8B5CF6;
  --primary-pink: #EC4899;
  --light-bg: linear-gradient(135deg, #f3e8ff, #fce7f3, #dbeafe);
  --dark-bg: #111827;
  --white: #ffffff;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --border-radius: 0.75rem;
  --border-radius-lg: 1rem;
  --border-radius-xl: 1.5rem;
  --transition: all 0.3s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  min-height: 100vh;
  transition: var(--transition);
}

body.light-mode {
  background: var(--light-bg);
  color: var(--gray-800);
}

body.dark-mode {
  background: var(--dark-bg);
  color: var(--gray-100);
}

/* Header */
.header {
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 50;
  transition: var(--transition);
}

.dark-mode .header {
  background: var(--gray-800);
  border-color: var(--gray-700);
}

.header-container {
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-svg {
  filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.1));
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(to right, var(--primary-purple), var(--primary-pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.control-btn {
  padding: 0.5rem;
  border-radius: var(--border-radius);
  background: var(--gray-100);
  color: var(--primary-purple);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.control-btn:hover {
  transform: scale(1.1);
}

.dark-mode .control-btn {
  background: var(--gray-700);
  color: var(--gray-300);
}

/* Menu Dropdown */
.menu-dropdown {
  background: var(--white);
  border-top: 1px solid var(--gray-200);
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
}

.dark-mode .menu-dropdown {
  background: var(--gray-800);
  border-color: var(--gray-700);
}

.menu-container {
  max-width: 72rem;
  margin: 0 auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.menu-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  background: none;
  border: none;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  transition: var(--transition);
  font-size: 0.875rem;
}

.menu-link:hover {
  background: var(--gray-50);
}

.dark-mode .menu-link:hover {
  background: var(--gray-700);
}

.menu-highlights {
  padding: 0.75rem 1rem;
  border-radius: var(--border-radius);
  background: var(--gray-50);
}

.dark-mode .menu-highlights {
  background: var(--gray-700);
}

.highlights-title {
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--gray-700);
}

.dark-mode .highlights-title {
  color: var(--gray-300);
}

.highlights-list {
  font-size: 0.75rem;
  color: var(--gray-600);
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.dark-mode .highlights-list {
  color: var(--gray-400);
}

/* Main Content */
.main-content {
  max-width: 56rem;
  margin: 0 auto;
  padding: 1.5rem 1rem;
}

.ad-container {
  margin-bottom: 1.5rem;
}

/* Chat Container */
.chat-container {
  background: var(--white);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  transition: var(--transition);
}

.dark-mode .chat-container {
  background: var(--gray-800);
}

.messages-container {
  height: 600px;
  overflow-y: auto;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.message-wrapper {
  display: flex;
}

.message-wrapper.user {
  justify-content: flex-end;
}

.message-wrapper.assistant {
  justify-content: flex-start;
}

.message {
  max-width: 85%;
  border-radius: var(--border-radius-lg);
  padding: 0.75rem 1rem;
  word-wrap: break-word;
}

.assistant-message {
  background: linear-gradient(to right, #f3e8ff, #fce7f3);
  color: var(--gray-800);
}

.dark-mode .assistant-message {
  background: var(--gray-700);
  color: var(--gray-100);
}

.user-message {
  background: linear-gradient(to right, var(--primary-purple), var(--primary-pink));
  color: var(--white);
}

.message-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.message-icon {
  font-size: 0.75rem;
  color: var(--primary-purple);
}

.message-sender {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary-purple);
}

.message-content {
  font-size: 0.875rem;
  line-height: 1.5;
  white-space: pre-wrap;
}

/* Input Area */
.input-area {
  background: var(--gray-50);
  border-top: 1px solid var(--gray-200);
  padding: 1rem;
  transition: var(--transition);
}

.dark-mode .input-area {
  background: var(--gray-700);
  border-color: var(--gray-600);
}

.input-container {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.message-input {
  flex: 1;
  padding: 0.75rem 1rem;
  border-radius: var(--border-radius);
  background: var(--white);
  border: 1px solid var(--gray-300);
  color: var(--gray-800);
  font-size: 0.875rem;
  transition: var(--transition);
}

.message-input:focus {
  outline: none;
  border-color: var(--primary-purple);
  box-shadow: 0 0 0 2px rgba(139, 92, 246, 0.2);
}

.dark-mode .message-input {
  background: var(--gray-600);
  border-color: var(--gray-500);
  color: var(--gray-100);
}

.send-btn {
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius);
  background: linear-gradient(to right, var(--primary-purple), var(--primary-pink));
  color: var(--white);
  border: none;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.send-btn:hover:not(:disabled) {
  transform: scale(1.05);
  box-shadow: var(--shadow);
}

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

.input-hint {
  font-size: 0.75rem;
  color: var(--gray-500);
  text-align: center;
}

.dark-mode .input-hint {
  color: var(--gray-400);
}

/* Mission Section */
.mission-section {
  margin-top: 2rem;
  padding: 1.5rem;
  border-radius: var(--border-radius-xl);
  background: var(--white);
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
}

.dark-mode .mission-section {
  background: var(--gray-800);
}

.mission-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--gray-800);
}

.dark-mode .mission-title {
  color: var(--gray-100);
}

.mission-content {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.mission-item {
  margin-bottom: 1rem;
}

.mission-subtitle {
  font-weight: 600;
  margin-bottom: 0.5rem;
  font-size: 1rem;
}

.mission-purple {
  color: var(--primary-purple);
}

.mission-pink {
  color: var(--primary-pink);
}

.mission-text {
  font-size: 0.875rem;
  color: var(--gray-700);
  line-height: 1.6;
}

.dark-mode .mission-text {
  color: var(--gray-300);
}

/* Footer */
.footer {
  background: var(--white);
  color: var(--gray-600);
  border-top: 1px solid var(--gray-200);
  margin-top: 3rem;
  padding: 1.5rem 0;
  transition: var(--transition);
}

.dark-mode .footer {
  background: var(--gray-800);
  border-color: var(--gray-700);
  color: var(--gray-400);
}

.footer-container {
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 1rem;
  text-align: center;
  font-size: 0.875rem;
}

.footer-powered {
  margin-top: 0.5rem;
}

.powered-text {
  font-weight: 600;
}

.footer-powered .powered-text:first-child {
  color: var(--primary-purple);
}

.footer-powered .powered-text:last-child {
  color: #0078d4;
}

/* Loading Animation */
@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.animate-bounce-custom {
  animation: bounce 1s infinite;
}

.loading-indicator {
  display: flex;
  gap: 0.25rem;
  padding: 0.5rem;
}

.loading-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--primary-purple);
}

.loading-dot:nth-child(2) {
  animation-delay: 150ms;
}

.loading-dot:nth-child(3) {
  animation-delay: 300ms;
}

/* Responsive Design */
@media (max-width: 768px) {
  .header-container {
    padding: 0 0.75rem;
  }
  
  .main-content {
    padding: 1rem 0.75rem;
  }
  
  .messages-container {
    height: 500px;
    padding: 1rem;
  }
  
  .message {
    max-width: 90%;
  }
  
  .mission-section {
    padding: 1rem;
  }
  
  .input-container {
    flex-direction: column;
  }
  
  .send-btn {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .header-container {
    height: 3.5rem;
  }
  
  .logo-text {
    font-size: 1.25rem;
  }
  
  .messages-container {
    height: 400px;
  }
  
  .message {
    max-width: 95%;
    padding: 0.5rem 0.75rem;
  }
  
  .mission-title {
    font-size: 1.125rem;
  }
  
  .mission-subtitle {
    font-size: 0.875rem;
  }
  
  .mission-text {
    font-size: 0.75rem;
  }
}

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

/* Focus styles para acessibilidade */
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--primary-purple);
  outline-offset: 2px;
}

/* High contrast mode */
@media (prefers-contrast: high) {
  :root {
    --primary-purple: #0000FF;
    --primary-pink: #FF00FF;
  }
}