/* Clean Neo-Brutalist Design - Fixed Version with Dark Mode */
:root {
  /* Light Mode Colors */
  --color-black: #000000;
  --color-white: #ffffff;
  --color-gray-50: #f8f9fa;
  --color-gray-100: #f1f3f4;
  --color-gray-200: #e8eaed;
  --color-gray-300: #dadce0;
  --color-gray-400: #bdc1c6;
  --color-gray-500: #9aa0a6;
  --color-gray-600: #80868b;
  --color-gray-700: #5f6368;
  --color-gray-800: #3c4043;
  --color-gray-900: #202124;

  /* Accent Colors */
  --color-blue: #1a73e8;
  --color-green: #137333;
  --color-red: #d93025;
  --color-yellow: #f9ab00;
  --color-purple: #9c27b0;
  --color-cyan: #00bcd4;

  /* Dynamic Theme Colors */
  --bg-primary: var(--color-white);
  --bg-secondary: var(--color-gray-50);
  --bg-tertiary: var(--color-gray-100);
  --text-primary: var(--color-black);
  --text-primary-inverted: var(--color-white);
  --text-secondary: var(--color-gray-700);
  --text-inverse: var(--color-white);
  --border-primary: var(--color-black);
  --border-secondary: var(--color-gray-200);
  --surface-elevated: var(--color-white);
  --grid-color: var(--color-gray-200);

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;

  /* Layout */
  --header-height: 60px;
  --border-width: 2px;
  --border-radius: 0;
  --input-height: 48px;

  /* Grid */
  --grid-size: 20px;
}

/* Dark Mode */
[data-theme="dark"] {
  /* Dark Mode Colors */
  --bg-primary: #0f1419;
  --bg-secondary: #1a1f26;
  --bg-tertiary: #252b33;
  --text-primary: #ffffff;
  --text-secondary: #a8b3c1;
  --text-inverse: var(--color-black);
  --border-primary: #404954;
  --border-secondary: #2d3339;
  --surface-elevated: #1e252d;
  --grid-color: #2d3339;

  /* Adjust accent colors for dark mode */
  --color-blue: #4a9eff;
  --color-green: #4ade80;
  --color-red: #ef4444;
  --color-yellow: #fbbf24;
  --color-purple: #a855f7;
  --color-cyan: #06b6d4;
}

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

/* Base Styles */
body {
  font-family: var(--font-family);
  font-weight: var(--font-weight-medium);
  background: var(--bg-secondary);
  color: var(--text-primary);
  line-height: 1.5;
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Grid Background */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    linear-gradient(var(--grid-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
  background-size: var(--grid-size) var(--grid-size);
  opacity: 0.5;
  pointer-events: none;
  z-index: -1;
}

.app-container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
.header {
  height: var(--header-height);
  background: var(--bg-primary);
  border-bottom: var(--border-width) solid var(--border-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-md);
  flex-shrink: 0;
  gap: var(--space-md);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-left {
  display: flex;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  cursor: pointer;
  transition: none;
  position: relative;
  z-index: 1;
}

.logo.animating {
  pointer-events: none;
}

.logo svg {
  transition: transform 0.6s ease;
  transform-origin: center;
}

.logo.spin svg {
  animation: logoSpin 0.6s ease-in-out;
}

@keyframes logoSpin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.title {
  position: relative;
  overflow: hidden;
}

.title.typewriter {
  border-right: 2px solid var(--text-primary);
  animation: blink-caret 1s step-end infinite;
}

@keyframes blink-caret {
  from, to { border-color: transparent; }
  50% { border-color: var(--text-primary); }
}

.logo svg {
  color: var(--text-primary);
  transition: color 0.3s ease;
}
[data-theme="dark"] .logo svg {
  filter: invert(1);
}

.title {
  font-size: 18px;
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.header-center {
  flex: 1;
  max-width: 500px;
  position: relative;
}

.header-right {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

/* Desktop and Mobile Actions */
.desktop-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.mobile-actions {
  display: none;
  align-items: center;
  gap: var(--space-sm);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

/* Model Select */
.model-select-wrapper {
  position: relative;
  width: 100%;
}

.model-select-btn {
  width: 100%;
  height: var(--input-height);
  background: var(--bg-primary);
  border: var(--border-width) solid var(--border-primary);
  color: var(--text-primary);
  font-family: var(--font-family);
  font-weight: var(--font-weight-medium);
  font-size: 14px;
  text-transform: uppercase;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-md);
  transition: all 0.2s ease;
  overflow: hidden;
}

.model-select-btn span {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
  text-align: left;
}

.model-select-btn:hover {
  background: var(--text-primary);
  color: var(--text-inverse);
  box-shadow: 4px 4px 0 var(--border-secondary);
  transform: translate(-2px, -2px);
}

.model-select-btn:active {
  transform: translate(0, 0);
  box-shadow: 2px 2px 0 var(--border-secondary);
}

.dropdown-arrow {
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.model-select-wrapper.open .dropdown-arrow {
  transform: rotate(180deg);
}

.model-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bg-primary);
  border: var(--border-width) solid var(--border-primary);
  border-top: none;
  max-height: 400px;
  overflow-y: auto;
  z-index: 1000;
  display: none;
}

.model-select-wrapper.open .model-dropdown {
  display: block;
}

/* Search Controls */
.search-controls {
  display: flex;
  border-bottom: var(--border-width) solid var(--border-primary);
}

.model-search {
  flex: 1;
  height: var(--input-height);
  border: none;
  padding: 0 var(--space-md);
  font-family: var(--font-family);
  font-weight: var(--font-weight-medium);
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.model-search:focus {
  outline: none;
  background: var(--bg-primary);
}

.search-actions {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs);
  background: var(--bg-tertiary);
}

.refresh-btn {
  padding: var(--space-xs) !important;
  min-width: auto !important;
}

.model-list {
  list-style: none;
}

.model-list li {
  padding: var(--space-md);
  border-bottom: 1px solid var(--border-secondary);
  cursor: pointer;
  font-size: 14px;
  transition: background-color 0.2s ease;
  font-weight: var(--font-weight-normal);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text-primary);
}

.model-list li:hover {
  background: var(--text-primary);
  color: var(--text-inverse);
}

.model-list li.selected-option {
  background: var(--color-blue);
  color: var(--color-white);
  font-weight: var(--font-weight-semibold);
}

.model-list li.hidden-option {
  display: none;
}

.model-list li.no-models {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  font-style: italic;
  cursor: default;
}

/* Mobile Model Section */
.mobile-model-section {
  background: var(--bg-primary);
  border-bottom: var(--border-width) solid var(--border-primary);
  position: relative;
  z-index: 999;
}

.mobile-search-controls {
  display: flex;
  border-bottom: var(--border-width) solid var(--border-primary);
  padding: var(--space-sm);
  gap: var(--space-sm);
}

.mobile-model-search {
  flex: 1;
  height: var(--input-height);
  border: var(--border-width) solid var(--border-primary);
  padding: 0 var(--space-md);
  font-family: var(--font-family);
  font-weight: var(--font-weight-medium);
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.mobile-model-search:focus {
  outline: none;
  background: var(--bg-primary);
}

.mobile-search-actions {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.mobile-model-list {
  list-style: none;
  max-height: 300px;
  overflow-y: auto;
}

.mobile-model-list li {
  padding: var(--space-md);
  border-bottom: 1px solid var(--border-secondary);
  cursor: pointer;
  font-size: 14px;
  transition: background-color 0.2s ease;
  font-weight: var(--font-weight-normal);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text-primary);
}

.mobile-model-list li:hover {
  background: var(--text-primary);
  color: var(--text-inverse);
}

.mobile-model-list li.selected-option {
  background: var(--color-blue);
  color: var(--color-white);
  font-weight: var(--font-weight-semibold);
}

.mobile-model-list li.hidden-option {
  display: none;
}

.mobile-model-list li.no-models {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  font-style: italic;
  cursor: default;
}

/* Header Buttons */
.header-btn {
  height: var(--input-height);
  background: var(--text-primary);
  color: var(--text-inverse);
  border: var(--border-width) solid var(--border-primary);
  font-family: var(--font-family);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0 var(--space-md);
  transition: all 0.2s ease;
  text-transform: uppercase;
  font-size: 14px;
  min-width: fit-content;
  /* width: 48px; */
  height: 48px;
}



.header-btn:hover:not(.disabled) {
  background: var(--color-blue);
  box-shadow: 4px 4px 0 var(--border-secondary);
  transform: translate(-2px, -2px);
}

.header-btn:active:not(.disabled) {
  transform: translate(0, 0);
  box-shadow: 2px 2px 0 var(--border-secondary);
}

.header-btn.danger:hover {
  background: var(--color-red);
}

.header-btn.primary {
  background: var(--color-blue);
  border-color: var(--border-primary);
}

.header-btn.primary:hover {
  background: var(--text-primary);
}

.header-btn.analyze-btn {
  background: var(--color-purple);
  border-color: var(--border-primary);
  width: 100%;
  justify-content: center;
  margin-top: var(--space-md);
}

.header-btn.large {
  padding: var(--space-lg) var(--space-xl);
  font-size: 16px;
}

.header-btn.disabled {
  background: var(--color-gray-400);
  color: var(--color-gray-600);
  cursor: not-allowed;
}

.btn-label {
  display: none;
}

/* Toggle */
.toggle-wrapper {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.toggle-label {
  font-size: 12px;
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  color: var(--text-secondary); 
}

.toggle-btn {
  width: 40px;
  height: 20px;
  background: var(--border-secondary);
  border: var(--border-width) solid var(--border-primary);
  position: relative;
  cursor: pointer;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.toggle-btn:hover {
  box-shadow: 2px 2px 0 var(--color-gray-400);
}

.toggle-btn.active {
  background: var(--color-green);
}

.toggle-slider {
  width: 12px;
  height: 12px;
  background: var(--bg-primary);
  border: 1px solid var(--border-primary);
  position: absolute;
  top: 2px;
  left: 2px;
  transition: transform 0.2s ease;
}

.toggle-btn.active .toggle-slider {
  transform: translateX(20px);
  background: var(--text-primary);
}

/* Toggle Controls Row */
.toggle-controls-row {
  display: flex;
  gap: var(--space-lg);
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md);
  background: var(--bg-secondary);
  border: var(--border-width) solid var(--border-primary);
  border-radius: 0;
}

.toggle-control-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex: 1;
  min-width: 0;
}

.toggle-icon {
  color: var(--text-secondary);
  flex-shrink: 0;
}

.toggle-control-item .toggle-label {
  font-size: 14px;
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
  white-space: nowrap;
  flex: 1;
  min-width: 0;
}

.toggle-control-item .toggle-btn {
  flex-shrink: 0;
}

.toggle-separator {
  color: var(--text-secondary);
  font-size: 18px;
  font-weight: var(--font-weight-normal);
  opacity: 0.6;
  user-select: none;
  flex-shrink: 0;
}

/* Responsive adjustments for toggle controls */
@media (max-width: 768px) {
  .toggle-controls-row {
    flex-direction: column;
    gap: var(--space-md);
    align-items: stretch;
  }
  
  .toggle-control-item {
    justify-content: space-between;
  }
  
  .toggle-control-item .toggle-label {
    flex: none;
  }
}

/* Main Content */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding-bottom: 0;
}

.chat-container {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--bg-primary);
  border-left: var(--border-width) solid var(--border-primary);
  border-right: var(--border-width) solid var(--border-primary);
  min-height: calc(100vh - var(--header-height));
}

/* Messages */
.messages-container {
  flex: 1;
  padding: var(--space-lg);
  overflow-y: auto;
  background: var(--bg-secondary);
}

.message {
  margin-bottom: var(--space-lg);
  padding: var(--space-md);
  border: var(--border-width) solid var(--border-primary);
  background: var(--bg-primary);
  color: var(--text-primary);
  position: relative;
}

.message.user {
  margin-left: 60px;
  background: var(--color-blue);
  color: var(--color-white);
}

.message.assistant {
  
  margin-right: 60px;
  background: var(--bg-primary);
  color: var(--text-primary);
}

.message::before {
  position: absolute;
  top: -12px;
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-yellow);
  color: var(--color-black);
  border: var(--border-width) solid var(--border-primary);
  font-size: 12px;
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
}

.message.user::before {
  content: 'YOU';
  right: var(--space-md);
}

.message.assistant::before {
  content: 'AI';
  left: var(--space-md);
}

.message-text-content {
  font-weight: var(--font-weight-normal);
  line-height: 1.5;
}

.message-text-content p {
  margin: 0 0 0.5em 0;
  line-height: 1.5;
}

.message-text-content h1,
.message-text-content h2,
.message-text-content h3,
.message-text-content h4,
.message-text-content h5,
.message-text-content h6 {
  margin: 1.2em 0 0.6em 0;
  font-weight: bold;
  line-height: 1.5;
}

.message-text-content ul,
.message-text-content ol {
  margin: 0 0 1em 2em;
  padding-left: 1.5em;
}

.message-text-content li {
  margin-bottom: 0.4em;
  line-height: 1.5;
}

.message-text-content strong {
  font-weight: 600;
}

.message-text-content em {
  font-style: italic;
}

.message-text-content blockquote {
  margin: 1em 0;
  padding: 0.5em 1em;
  border-left: 4px solid var(--color-purple, #9c27b0);
  background: var(--bg-tertiary, #f8f9fa);
  color: var(--text-secondary, #555);
}

.message-text-content > *:not(:last-child) {
  margin-bottom: 1em;
}

/* Code block styling with text wrapping */
.message-text-content pre {
  white-space: pre-wrap;
  word-wrap: break-word;
  overflow-wrap: break-word;
  max-width: 100%;
  overflow-x: auto;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-secondary);
  border-radius: 4px;
  padding: var(--space-sm);
  margin: var(--space-sm) 0;
  font-family: 'Courier New', monospace;
  font-size: 14px;
  line-height: 1.5;
}

.message-text-content code {
  white-space: pre-wrap;
  word-wrap: break-word;
  overflow-wrap: break-word;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-secondary);
  border-radius: 3px;
  padding: 2px 4px;
  font-family: 'Courier New', monospace;
  font-size: 13px;
}

.message-text-content pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: inherit;
}

/* Ensure user messages also have proper text formatting and markdown styling */
.message.user .message-text-content {
  white-space: pre-wrap;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.message.user .message-text-content p {
  margin: 0 0 0.5em 0;
  line-height: 1.5;
}

.message.user .message-text-content strong {
  font-weight: 600;
}

.message.user .message-text-content em {
  font-style: italic;
}

.message.user .message-text-content ul,
.message.user .message-text-content ol {
  margin: 0 0 1em 2em;
  padding-left: 1.5em;
}

.message.user .message-text-content li {
  margin-bottom: 0.4em;
  line-height: 1.5;
}

.message.user .message-text-content blockquote {
  margin: 1em 0;
  padding: 0.5em 1em;
  border-left: 4px solid var(--color-blue, #1a73e8);
  background: var(--bg-tertiary, #f8f9fa);
  color: var(--text-secondary, #555);
}

.message-text-content.assistant {
  padding: var(--space-md);
  border-radius: var(--border-radius, 8px);
  margin: var(--space-xs) 0;
}

.message-actions {
  display: flex;
  gap: var(--space-xs);
  /* margin-top: var(--space-md); */
  opacity: 0;
  transition: opacity 0.2s ease;
}

.message:hover .message-actions {
  opacity: 1;
}

.copy-btn {
  background: var(--text-primary);
  color: var(--text-inverse);
  border: 1px solid var(--border-primary);
  padding: var(--space-xs) var(--space-sm);
  font-size: 11px;
  font-weight: var(--font-weight-bold);
  cursor: pointer;
  text-transform: uppercase;
  transition: all 0.2s ease;
}

.copy-btn:hover {
  background: var(--bg-primary);
  color: var(--text-primary);
}

/* Thinking Block */
.thinking-quote {
  border-left: 4px solid #ccc;
  padding-left: 10px;
  font-style: italic;
  margin-bottom: 10px;
  color: #555;  /* Or whatever fits your theme */
}
.thinking-container {
  background: var(--color-purple);
  color: var(--color-white);
  border: var(--border-width) solid var(--border-primary);
  margin-bottom: var(--space-lg);
}

.thinking-header {
  background: var(--text-primary);
  color: var(--text-inverse);
  padding: var(--space-sm) var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  font-size: 12px;
}

.thinking-icon {
  width: 12px;
  height: 12px;
  background: var(--color-yellow);
  border-radius: 50%;
  animation: pulse 1s infinite;
}

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

.thinking-content {
  padding: var(--space-md);
  font-family: 'Courier New', monospace;
  font-size: 12px;
  max-height: 200px;
  overflow-y: auto;
  background: var(--bg-tertiary);
  color: var(--color-green);
}

/* Loading Message */
.loading-message {
  background: var(--color-yellow);
  color: var(--color-black);
  padding: var(--space-md);
  border: var(--border-width) solid var(--border-primary);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  margin-bottom: var(--space-lg);
}

.loading-dots {
  display: flex;
  gap: var(--space-xs);
}

.loading-dot {
  width: 6px;
  height: 6px;
  background: var(--color-black);
  border-radius: 50%;
  animation: bounce 1.4s infinite ease-in-out;
}

.loading-dot:nth-child(1) { animation-delay: -0.32s; }
.loading-dot:nth-child(2) { animation-delay: -0.16s; }

@keyframes bounce {
  0%, 80%, 100% { transform: scale(0); }
  40% { transform: scale(1); }
}

/* Status Bar */
.status-bar {
  background: var(--text-primary);
  color: var(--text-inverse);
  padding: var(--space-sm) var(--space-lg);
  border-top: var(--border-width) solid var(--border-primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
  font-weight: var(--font-weight-medium);
  flex-shrink: 0;
}

.status-left {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.loading-spinner {
  width: 16px;
  height: 16px;
  border: 2px solid var(--color-gray-600);
  border-top: 2px solid var(--text-inverse);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.rate-limit {
  background: var(--color-red);
  color: var(--color-white);
  padding: var(--space-xs) var(--space-sm);
  border: 1px solid var(--color-white);
  font-size: 12px;
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
}

/* Input Area */
.input-area {
  background: var(--bg-primary);
  border-top: var(--border-width) solid var(--border-primary);
  padding: var(--space-lg);
  flex-shrink: 0;
}

.input-wrapper {
  display: flex;
  gap: var(--space-md);
  align-items: flex-end;
}

.message-input {
  flex: 1;
  min-height: var(--input-height);
  max-height: 120px;
  background: var(--bg-secondary);
  border: var(--border-width) solid var(--border-primary);
  color: var(--text-primary);
  padding: var(--space-md);
  font-family: var(--font-family);
  font-weight: var(--font-weight-normal);
  font-size: 16px;
  resize: none;
  line-height: 1.5;
}

.message-input:focus {
  outline: none;
  background: var(--bg-primary);
  box-shadow: inset 0 0 0 2px var(--color-blue);
}

.send-btn {
  width: 58px;
  height: 58px;
  background: var(--text-primary);
  color: var(--text-inverse);
  border: var(--border-width) solid var(--border-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.send-btn:hover:not(:disabled) {
  background: var(--color-green);
  box-shadow: 4px 4px 0 var(--border-secondary);
  transform: translate(-2px, -2px);
}

.send-btn:active:not(:disabled) {
  transform: translate(0, 0);
  box-shadow: 2px 2px 0 var(--border-secondary);
}

.send-btn:disabled {
  background: var(--color-gray-400);
  cursor: not-allowed;
}

/* Modals */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  z-index: 1000;
  padding: var(--space-lg);
  overflow-y: auto;
}

.modal {
  background: var(--bg-primary);
  border: var(--border-width) solid var(--border-primary);
  max-width: 900px;
  width: 100%;
  margin: 0 auto;
  min-height: fit-content;
}

.modal-header {
  background: var(--text-primary);
  color: var(--text-inverse);
  padding: var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: var(--border-width) solid var(--border-primary);
}

.modal-title {
  font-size: 20px;
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
}

.close-btn {
  background: none;
  border: none;
  color: var(--text-inverse);
  cursor: pointer;
  padding: var(--space-xs);
  transition: all 0.2s ease;
}

.close-btn:hover {
  background: var(--color-red);
  color: var(--color-white);
}

.modal-content {
  padding: var(--space-xl);
}

.modal-description {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  padding: var(--space-md);
  border: var(--border-width) solid var(--border-primary);
  margin-bottom: var(--space-lg);
  font-weight: var(--font-weight-normal);
}

/* Form Elements */
.form-section {
  margin-bottom: var(--space-xl);
}

.form-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.form-label {
  display: block;
  margin-bottom: var(--space-sm);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  font-size: 14px;
  color: var(--text-primary);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  background: var(--bg-secondary);
  border: var(--border-width) solid var(--border-primary);
  color: var(--text-primary);
  padding: var(--space-md);
  font-family: var(--font-family);
  font-weight: var(--font-weight-normal);
  font-size: 16px;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  background: var(--bg-primary);
  box-shadow: inset 0 0 0 2px var(--color-blue);
}

.form-textarea {
  min-height: 100px;
  resize: vertical;
}

.form-textarea.large {
  min-height: 200px;
}

/* Style Actions */
.style-actions {
  margin-top: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.modal-footer {
  padding-top: var(--space-lg);
  border-top: var(--border-width) solid var(--border-secondary);
  text-align: center;
}

/* Analysis Status */
.analysis-status {
  background: var(--color-yellow);
  color: var(--color-black);
  padding: var(--space-md);
  border: var(--border-width) solid var(--border-primary);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  margin: var(--space-lg) 0;
}

/* Utility Classes */
.hidden {
  display: none !important;
}

/* Mobile Responsive Design */
@media (min-width: 768px) {
  .btn-label {
    display: inline;
  }
  
  .header-btn {
    padding: 0 var(--space-lg);
  }
}

@media (max-width: 767px) {
  .header-center {
    display: none;
  }
  
  .desktop-actions {
    display: none;
  }
  
  .mobile-actions {
    display: flex;
  }
  
  .title {
    font-size: 16px;
  }
  
  .mobile-model-section.hidden {
    display: none;
  }
  
  .mobile-model-section:not(.hidden) {
    display: block;
  }
  
  .message.user {
    margin-left: var(--space-md);
    margin-right: var(--space-md);
  }
  
  .message.assistant {
    margin-left: var(--space-md);
    margin-right: var(--space-md);
  }
  
  .modal {
    margin: var(--space-md);
    width: calc(100% - 32px);
  }
  
  .form-row {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-md);
  }
  
  .chat-container {
    border-left: none;
    border-right: none;
  }
  
  .input-area {
    padding: var(--space-md);
  }
  
  .messages-container {
    padding: var(--space-md);
  }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
  width: 12px;
}

::-webkit-scrollbar-track {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--text-primary);
  border: 1px solid var(--bg-primary);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}

/* PDF Upload Button */
#pdfUploadBtn {
  background: var(--color-blue);
  color: var(--text-inverse);
  border: none;
  margin-left: var(--space-xs);
  /* border-radius: 6px; */
  padding: var(--space-xs) var(--space-sm);
  cursor: pointer;
  transition: background 0.2s;
}
#pdfUploadBtn:hover {
  background: var(--color-green);
}

.input-options {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-xs);
}

#reasoningToggle {
  accent-color: var(--color-blue);
  width: 18px;
  height: 18px;
}

/* Foldable quote box for thinking */
.foldable-quote {
  background: var(--bg-tertiary);
  border-left: 4px solid var(--color-purple);
  margin: var(--space-xs) 0;
  padding: var(--space-xs) var(--space-md);
  border-radius: 6px;
  cursor: pointer;
  user-select: none;
  position: relative;
}
.foldable-quote .fold-toggle {
  font-size: 12px;
  color: var(--color-purple);
  position: absolute;
  right: 8px;
  top: 8px;
  background: none;
  border: none;
  cursor: pointer;
}
.foldable-quote-content {
  display: none;
  margin-top: var(--space-xs);
  font-size: 14px;
  color: var(--text-secondary);
}
.foldable-quote.open .foldable-quote-content {
  display: block;
}

/* Provider Quick Switch Styles */
.provider-quick-switch-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  /* margin-right: 12px; */
}

.provider-quick-switch-btn {
  height: var(--input-height);
  background: var(--text-primary);
  color: var(--text-inverse);
  border: var(--border-width) solid var(--border-primary);
  font-family: var(--font-family);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0 var(--space-md);
  transition: all 0.2s ease;
  text-transform: uppercase;
  font-size: 14px;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: background 0.2s, color 0.2s;
}
.provider-quick-switch-btn:hover {
  background: var(--color-blue);
  border: var(--border-width) solid var(--border-primary);
}
.provider-quick-switch-btn img {
  width: 24px;
  height: 24px;
  object-fit: contain;
  display: block;
  filter: none;
  transition: filter 0.2s;
}

/* If your logo is white, invert it in light mode only */
body:not([data-theme="dark"]) .provider-quick-switch-btn img {
  filter: none;
}

/* In dark mode, show the logo as-is (white) */
[data-theme="dark"] .provider-quick-switch-btn img {
 filter: invert(1) brightness(0.2) contrast(2); 
}
/* Remove text from provider switch button */
.provider-quick-switch-btn span,
.provider-quick-switch-btn .btn-label {
  display: none !important;
}
.provider-fab-menu {
  display: none;
  position: absolute;
  top: 48px;
  left: 0;
  z-index: 100;
  background: var(--color-bg, #fff);
  box-shadow: 0 4px 24px rgba(0,0,0,0.18);
  padding: 12px 8px;
  min-width: 220px;
  flex-direction: row;
  gap: 8px;
  transition: opacity 0.2s;
  /* Remove border-radius if you want sharp corners */
}
.provider-quick-switch-wrapper.open .provider-fab-menu {
  display: flex;
}
.provider-fab-btn {
  background: #f5f5f5;
  border: none;
  border-radius: 50%;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 4px;
  cursor: pointer;
  transition: background 0.2s, box-shadow 0.2s;
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}
.provider-fab-btn:hover, .provider-fab-btn:focus {
  background: #e0e0e0;
  box-shadow: 0 2px 8px rgba(0,0,0,0.16);
}
@media (max-width: 900px) {
  .provider-quick-switch-wrapper {
    display: none !important;
  }
}

/* Button: black in light mode, white in dark mode */
.provider-quick-switch-btn {
  background: var(--text-primary); /* black for light mode */
  color: var(--text-inverse);
  border: var(--border-width) solid var(--border-primary);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: background 0.2s, color 0.2s;
}
[data-theme="dark"] .provider-quick-switch-btn {
  background: var(--text-inverse); /* white for dark mode */
  color: var(--text-primary);
  border: var(--border-width) solid var(--border-primary);
}

/* Logo: white in light mode, black in dark mode */
.provider-logo-img {
  width: 24px;
  height: 24px;
  object-fit: contain;
  filter: brightness(0) invert(1); /* white in light mode */
  transition: filter 0.2s;
}
[data-theme="dark"] .provider-logo-img {
  filter: brightness(0); /* black in dark mode */
}

.pdf-dragover {
  border: 2px dashed var(--color-yellow, var(--color-black));
  background: rgba(162, 89, 255, 0.08);
  transition: background 0.2s, border 0.2s;
}

.pdf-drop-hint {
  text-align: center;
  color: var(--color-yellow, var(--color-black));
  font-size: 0.95em;
  opacity: 0.7;
  margin-top: 4px;
  margin-bottom: 8px;
  pointer-events: none;
  user-select: none;
}

.message-attachment {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--color-yellow, var(--color-black));
  color: var(--color-black);
  font-size: 13px;
  padding: 2px 8px 2px 4px;
  margin-bottom: 6px;
  border: 2px solid var(--color-black);
  width: fit-content;
  box-shadow: 0 1px 2px rgba(162,89,255,0.07);
}
.attachment-icon {
  display: flex;
  align-items: center;
  margin-right: 2px;
}
.attachment-name {
  font-weight: 500;
  font-family: inherit;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 180px;
}