/* ===== MAIN CONTENT STYLES ===== */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  height: 100vh;
  background-color: var(--bg-primary);
  transition: background-color 0.2s ease;
}

/* ===== CHAT HEADER ===== */
.chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border-secondary);
  background-color: var(--bg-primary);
  min-height: 60px;
}

.model-selector {
  display: flex;
  align-items: center;
}

.model-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 8px;
  background-color: var(--bg-button-secondary);
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s ease;
  border: 1px solid var(--border-primary);
}

.model-btn:hover {
  background-color: var(--bg-button-secondary-hover);
}

.model-btn.active {
  background-color: var(--bg-button);
  color: var(--text-inverse);
  border-color: var(--bg-button);
}

.model-btn .icon {
  color: inherit;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.header-btn {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-button-secondary);
  color: var(--text-secondary);
  transition: all 0.2s ease;
}

.header-btn:hover {
  background-color: var(--bg-button-secondary-hover);
}

/* ===== CHAT CONTAINER ===== */
.chat-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 0 24px;
  display: flex;
  flex-direction: column;
}

/* ===== CHAT MESSAGES ===== */
.message {
  margin-bottom: 24px;
  display: flex;
  flex-direction: column;
}

.user-message {
  align-items: flex-end;
}

.assistant-message {
  align-items: flex-start;
}

.error-message {
  align-items: flex-start;
}

.message-content {
  max-width: 70%;
  padding: 12px 16px;
  border-radius: 18px;
  position: relative;
}

.user-message .message-content {
  background-color: var(--accent-primary);
  color: white;
  border-bottom-right-radius: 4px;
}

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

.error-message .message-content {
  background-color: #fee;
  color: #c53030;
  border: 1px solid #fed7d7;
  border-bottom-left-radius: 4px;
}

.message-text {
  font-size: 14px;
  line-height: 1.5;
  word-wrap: break-word;
}

.message-time {
  font-size: 11px;
  opacity: 0.6;
  margin-top: 4px;
  text-align: right;
}

.user-message .message-time {
  text-align: right;
}

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

/* Loading indicator */
.loading-message .message-content {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-primary);
}

.loading-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
}

.loading-dots {
  display: flex;
  gap: 4px;
}

.loading-dots span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--text-secondary);
  animation: loading-pulse 1.4s ease-in-out infinite both;
}

.loading-dots span:nth-child(1) { animation-delay: -0.32s; }
.loading-dots span:nth-child(2) { animation-delay: -0.16s; }
.loading-dots span:nth-child(3) { animation-delay: 0s; }

@keyframes loading-pulse {
  0%, 80%, 100% {
    opacity: 0.3;
    transform: scale(0.8);
  }
  40% {
    opacity: 1;
    transform: scale(1);
  }
}

.loading-text {
  font-size: 12px;
  color: var(--text-secondary);
  font-style: italic;
}

/* ===== WELCOME SECTION ===== */
.welcome-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;
  max-width: 768px;
  margin: 0 auto;
  padding: 32px 0;
}

.welcome-logo {
  margin-bottom: 24px;
}


.welcome-title {
  font-size: 32px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 32px;
  text-align: center;
}

/* ===== SUGGESTIONS GRID ===== */
.suggestions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  width: 100%;
  max-width: 600px;
}

.suggestion-card {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px;
  border-radius: 12px;
  background-color: var(--bg-suggestion);
  border: 1px solid var(--border-secondary);
  text-align: left;
  transition: all 0.2s ease;
  cursor: pointer;
}

.suggestion-card:hover {
  background-color: var(--bg-button-secondary-hover);
  border-color: var(--border-primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--shadow-light);
}

.suggestion-icon {
  width: 20px;
  height: 20px;
  color: var(--icon-accent);
  flex-shrink: 0;
  margin-top: 2px;
}

.suggestion-text {
  flex: 1;
}

.suggestion-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.suggestion-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* ===== MESSAGE STYLES ===== */
.message {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
  max-width: 768px;
  margin-left: auto;
  margin-right: auto;
  width: 100%;
}

.message-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: var(--bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.message-avatar .icon {
  width: 18px;
  height: 18px;
  color: var(--icon-primary);
}

.message-content {
  flex: 1;
  min-width: 0;
}

.message-text {
  color: var(--text-primary);
  font-size: 15px;
  line-height: 1.6;
  word-wrap: break-word;
}

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

.message.user .message-avatar {
  background-color: var(--bg-button);
}

.message.user .message-avatar .icon {
  color: var(--icon-inverse);
}

.message.user .message-content {
  text-align: right;
}

/* ===== INPUT CONTAINER ===== */
.input-container {
  padding: 24px;
  background-color: var(--bg-primary);
  border-top: 1px solid var(--border-secondary);
}

.input-wrapper {
  max-width: 768px;
  margin: 0 auto;
  display: flex;
  align-items: flex-end;
  gap: 12px;
  background-color: var(--bg-input);
  border: 1px solid var(--border-input);
  border-radius: 24px;
  padding: 12px 16px;
  transition: all 0.2s ease;
}

.input-wrapper:focus-within {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(16, 163, 127, 0.1);
}

.input-actions-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.input-btn {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-button-secondary);
  color: var(--text-secondary);
  transition: all 0.2s ease;
}

.input-btn:hover {
  background-color: var(--bg-button-secondary-hover);
}

.input-field-container {
  flex: 1;
  display: flex;
  align-items: flex-end;
  gap: 12px;
}

.input-field {
  flex: 1;
  background-color: transparent;
  border: none;
  outline: none;
  font-size: 15px;
  line-height: 1.5;
  color: var(--text-primary);
  resize: none;
  max-height: 200px;
  min-height: 24px;
}

.input-field::placeholder {
  color: var(--text-placeholder);
}

.send-btn {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-button);
  color: var(--text-inverse);
  transition: all 0.2s ease;
  opacity: 0.5;
  cursor: not-allowed;
}

.send-btn.active {
  opacity: 1;
  cursor: pointer;
}

.send-btn.active:hover {
  background-color: var(--bg-button-hover);
}

.input-footer {
  max-width: 768px;
  margin: 12px auto 0;
  text-align: center;
}

.disclaimer {
  font-size: 12px;
  color: var(--text-tertiary);
  line-height: 1.4;
}

/* ===== RESPONSIVE STYLES ===== */
@media (max-width: 768px) {
  .main-content {
    margin-left: 0;
  }
  
  .chat-header {
    padding: 16px;
  }
  
  .chat-messages {
    padding: 0 16px;
  }
  
  .input-container {
    padding: 16px;
  }
  
  .suggestions-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  
  .welcome-title {
    font-size: 24px;
  }
  
  .message {
    gap: 12px;
  }
}

@media (max-width: 480px) {
  .chat-header {
    padding: 12px;
  }
  
  .chat-messages {
    padding: 0 12px;
  }
  
  .input-container {
    padding: 12px;
  }
  
  .welcome-title {
    font-size: 20px;
  }
}