/* css/components.css */

/* Mobile Toggle Button (Used in .top-bar-header) */
.mobile-toggle {
  display: none; /* Default: hidden. Shown in .top-bar-header via media query */
  background: none;
  border: none;
  padding: var(--spacing-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: color var(--transition-fast); 
}
.mobile-toggle:hover {
    color: var(--text-primary); 
}

/* === LAYOUT STYLES: Sidebar, Content Wrapper, Mobile Top Bar === */

.app-sidebar {
    width: 260px;
    background-color: var(--bg-primary);
    border-right: 1px solid var(--border-primary);
    display: flex;
    flex-direction: column;
    height: 100vh; 
    position: fixed; 
    left: 0;       
    top: 0;        
    z-index: 1100; 
    transition: transform 0.3s ease-in-out;
    flex-shrink: 0; 
}

.sidebar-header {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-primary);
    flex-shrink: 0;
}

.sidebar-header .brand-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-lg); 
    font-weight: 700;
    color: var(--primary-blue);
    text-decoration: none;
}

.sidebar-header .brand-icon {
    width: 28px; 
    height: 28px;
    color: var(--accent-orange);
}

.sidebar-nav {
    flex-grow: 1; 
    padding: var(--spacing-md);
    overflow-y: auto;
}

.sidebar-nav .nav-link {
    display: block; 
    padding: var(--spacing-sm) var(--spacing-md);
    margin-bottom: var(--spacing-xs);
    border-radius: var(--radius-md);
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast), background-color var(--transition-fast);
}

.sidebar-nav .nav-link:hover,
.sidebar-nav .nav-link.active {
    color: var(--primary-blue);
    background-color: rgb(65 82 244 / 0.1); 
}

.sidebar-nav .language-selector {
    margin-top: var(--spacing-lg);
    padding: 0 var(--spacing-md); 
}
.sidebar-nav .language-select {
    width: 100%; 
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    background-color: var(--bg-primary); 
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.sidebar-nav .language-select:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgb(65 82 244 / 0.1);
}

.sidebar-footer {
    padding: var(--spacing-lg) var(--spacing-md);
    border-top: 1px solid var(--border-primary);
    margin-top: auto; 
    flex-shrink: 0; 
    background-color: var(--bg-primary); 
}

.sidebar-footer .footer-social {
    display: flex;
    justify-content: center; 
    gap: var(--spacing-lg); 
    margin-bottom: var(--spacing-md);
}
.sidebar-footer .social-link {
    color: var(--text-secondary);
    padding: var(--spacing-xs); 
    text-decoration: none;
    display: inline-flex; 
    align-items: center;
    justify-content: center;
    transition: color var(--transition-fast);
}
.sidebar-footer .social-link:hover {
    color: var(--primary-blue);
}
.sidebar-footer .social-link i { 
    width: 20px;
    height: 20px;
}

.sidebar-footer .footer-text {
    text-align: center;
    font-size: var(--font-size-xs); 
    color: var(--text-secondary);
}
.sidebar-footer .footer-text p {
    margin-bottom: var(--spacing-xs);
    line-height: 1.4;
}

.content-wrapper {
    flex-grow: 1; 
    display: flex;
    flex-direction: column;
    height: 100vh; 
    margin-left: 260px; 
    transition: margin-left 0.3s ease-in-out;
    background-color: var(--bg-secondary);
    padding-right: 0; 
    margin-right: 0;  
    overflow: hidden; 
}

.top-bar-header { 
    display: none; 
    align-items: center;
    justify-content: space-between; 
    padding: 0 var(--spacing-md);
    height: 64px; 
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-primary);
    z-index: 1050;
    flex-shrink: 0; 
}

.top-bar-header .mobile-brand-link {
    display: none; 
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--primary-blue);
    text-decoration: none;
}
 .top-bar-header .mobile-brand-link .brand-icon {
    width: 28px;
    height: 28px;
    color: var(--accent-orange);
}

/* Main Content Area (wrapper for pages inside content-wrapper) */
.main-content {
  flex: 1; /* Takes available vertical space in .content-wrapper */
  display: flex;
  flex-direction: column;
  overflow: hidden; /* CRITICAL: Prevent .main-content itself from scrolling; children will handle scroll */
  position: relative;
}

/* Styles for any page that is active */
.page { /* Base styles for all pages, opacity/transform handled by theme.css */
  display: none;
  width: 100%; /* Ensure page takes full width of its container */
}

.page.active {
  display: flex; /* Make the active page a flex container */
  flex-direction: column; /* Align children (like .chat-container or .page-container) vertically */
  flex: 1; /* Make the active page take all available space in .main-content */
  opacity: 1; /* Managed by theme.css for transitions */
  transform: translateY(0); /* Managed by theme.css for transitions */
  overflow: hidden; /* The page itself shouldn't scroll, specific children will manage it */
}


/* Page Container (for History, Settings pages which have centered content) */
.page-container {
  max-width: 1024px;
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md);
  width: 100%; 
  overflow-y: auto; /* Allow .page-container to scroll if its content is too long */
  flex: 1; /* Allows it to take space if .page.active is flex */
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
  border-bottom: 1px solid var(--border-primary); 
  padding-bottom: var(--spacing-md);
}

.page-icon {
  width: 28px; 
  height: 28px;
  color: var(--primary-blue);
  margin-right: var(--spacing-sm); 
}
.page-header h1 {
    margin-bottom: 0; 
}


/* Chat Components */
.chat-container { /* This is a direct child of #chatPage (which is a .page.active) */
  display: flex;
  flex-direction: column;
  flex: 1; /* Make chat-container take all available space in its parent page (#chatPage) */
  width: 100%;
  background-color: var(--bg-secondary);
  overflow: hidden; /* The container itself shouldn't scroll; .chat-messages will */
}

.chat-messages {
  flex: 1 1 auto; /* Grow and shrink, auto basis. This is the scrollable message area. */
  overflow-y: auto; 
  padding: var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  max-width: 1024px; 
  margin: 0 auto; 
  width: 100%;
}

.chat-bubble {
  max-width: 75%; 
  padding: var(--spacing-sm) var(--spacing-md); 
  border-radius: var(--radius-lg); 
  box-shadow: var(--shadow-sm);
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  line-height: 1.5; 
}

.chat-bubble.user {
  align-self: flex-end;
  background-color: var(--primary-blue);
  color: white;
  border-radius: var(--radius-lg) var(--radius-lg) 0 var(--radius-lg); 
  flex-direction: row-reverse; 
}

.chat-bubble.bot {
  align-self: flex-start;
  background-color: var(--accent-orange);
  color: white;
  border-radius: var(--radius-lg) var(--radius-lg) var(--radius-lg) 0; 
}

.chat-bubble.loading {
  align-self: flex-start;
  background-color: var(--accent-orange); 
  color: white; 
  padding: var(--spacing-md); 
  border-radius: var(--radius-lg); 
}

.chat-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  margin-top: 2px; 
}

.chat-content {
  flex: 1;
}

.message-text {
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-xs);
  word-wrap: break-word; 
  white-space: pre-wrap; 
}

.message-time {
  font-size: var(--font-size-xs);
  opacity: 0.7; 
  margin-top: var(--spacing-xs); 
  display: block; 
}
.chat-bubble.user .message-time {
    text-align: right;
}

.chat-input-container {
  flex-shrink: 0; /* Important: Prevents this container from shrinking */
  border-top: 1px solid var(--border-primary);
  background-color: var(--bg-primary); 
  padding: var(--spacing-md);
  z-index: 10; /* Ensure it's above messages if any overlap could occur, e.g. with box shadows */
}

.chat-input-wrapper {
  max-width: 1024px; 
  margin: 0 auto; 
  display: flex;
  gap: var(--spacing-sm); 
  align-items: center;
  background-color: var(--bg-secondary); 
  padding: var(--spacing-xs); 
  border-radius: var(--radius-xl); 
  border: 1px solid var(--border-primary);
}
.chat-input-wrapper:focus-within { 
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgb(65 82 244 / 0.1);
}


.chat-input {
  flex: 1;
  padding: var(--spacing-sm) var(--spacing-md); 
  border: none; 
  border-radius: var(--radius-lg); 
  background-color: transparent; 
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  resize: none;
  outline: none;
}

.send-button {
  background-color: var(--primary-blue);
  color: white;
  border: none;
  border-radius: var(--radius-lg); 
  padding: var(--spacing-sm); 
  width: 38px; 
  height: 38px;
  cursor: pointer;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.send-button i { 
    width: 20px;
    height: 20px;
}

.send-button:hover:not(:disabled) {
  background-color: #3b4df0; 
  transform: scale(1.05); 
}

.send-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* History Components */
.history-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.history-item {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-fast), transform var(--transition-fast);
}

.history-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.history-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-sm);
  padding-bottom: var(--spacing-sm); 
  border-bottom: 1px dashed var(--border-secondary); 
}

.history-sender {
  font-weight: 600;
  font-size: var(--font-size-sm);
}
.history-sender.user { color: var(--primary-blue); }
.history-sender.bot { color: var(--accent-orange); }

.history-time {
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
}

.history-message {
  color: var(--text-primary);
  line-height: 1.6; 
  word-wrap: break-word;
  white-space: pre-wrap; 
  padding-top: var(--spacing-sm); 
}

.empty-state {
  text-align: center;
  padding: var(--spacing-2xl);
  color: var(--text-tertiary);
  background-color: var(--bg-primary); 
  border-radius: var(--radius-lg);
  border: 1px dashed var(--border-secondary);
}
.empty-state p {
    margin-bottom: 0; 
}


/* Settings Components */
.settings-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.setting-card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
}

.setting-card h2 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--border-secondary); 
}

.setting-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  flex-wrap: wrap; 
  padding: var(--spacing-sm) 0; 
}
.setting-item + .setting-item { 
    border-top: 1px dashed var(--border-secondary);
    margin-top: var(--spacing-sm);
}


.setting-label {
  font-weight: 500;
  color: var(--text-primary);
  flex-shrink: 0; 
}

.setting-input {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  background-color: var(--bg-secondary); 
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  min-width: 200px; 
  flex-grow: 1; 
}

.setting-input:focus {
  outline: none;
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 3px rgb(65 82 244 / 0.1);
}

.setting-description {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  margin-top: var(--spacing-sm);
  line-height: 1.5;
  padding: var(--spacing-xs) var(--spacing-sm);
  background-color: var(--bg-tertiary); 
  border-radius: var(--radius-sm);
}

/* Responsive Design Adjustments */
@media (max-width: 768px) {
  .app-sidebar {
      transform: translateX(-100%); 
  }
  .app-sidebar.active {
      transform: translateX(0);
  }
  .content-wrapper {
      margin-left: 0; 
  }
  .top-bar-header {
      display: flex; 
  }
  .top-bar-header .mobile-toggle {
      display: block; 
  }
   .top-bar-header .mobile-brand-link {
      display: flex;
  }

  .chat-bubble {
    max-width: 85%; 
  }

  .page-container { /* For settings/history pages, ensure padding is consistent */
    padding: var(--spacing-lg) var(--spacing-md); /* Adjusted for consistency */
  }

  .page-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm); 
  }

  .setting-item {
    flex-direction: column; 
    align-items: flex-start;
    gap: var(--spacing-sm);
  }

  .setting-input {
    width: 100%; 
    min-width: unset;
  }
}

@media (max-width: 480px) {
  .page-container { 
    padding: var(--spacing-md) var(--spacing-sm); 
  }
  .chat-messages { 
    padding: var(--spacing-sm); 
    gap: var(--spacing-sm); 
  }
  .chat-input-container { 
    padding: var(--spacing-sm); 
  }
  .sidebar-header .brand-text,
  .top-bar-header .mobile-brand-link .brand-text {
    font-size: var(--font-size-base); 
  }
  .chat-bubble {
    max-width: 90%; 
    padding: var(--spacing-xs) var(--spacing-sm); 
  }
  .setting-card h2 {
    font-size: var(--font-size-base); 
  }
  .chat-input-wrapper {
    padding: var(--spacing-xs);
    border-radius: var(--radius-lg); 
  }
  .send-button {
    width: 36px;
    height: 36px;
  }
  .send-button i {
    width: 18px;
    height: 18px;
  }
}