/* =============================================================================
   LAYAL — Professional Grey Theme
   A calm, trustworthy, professional design system.
   ============================================================================= */

/* CSS Variables */
:root {
  /* Grey Palette */
  --bg-primary: #f5f6f7;
  --bg-secondary: #ebedef;
  --bg-card: #ffffff;
  --bg-card-alt: #f0f1f3;
  --bg-input: #ffffff;
  
  /* Borders */
  --border-light: #e0e2e6;
  --border-medium: #d0d3d8;
  
  /* Text */
  --text-primary: #1a1d21;
  --text-secondary: #5c6370;
  --text-muted: #8b919a;
  --text-inverse: #ffffff;
  
  /* Accent (muted blue) */
  --accent-primary: #4a6fa5;
  --accent-hover: #3d5d8a;
  --accent-light: #e8eef5;
  
  /* Claim Colors - POST-HARDENING */
  /* GROUNDED (externally verified) */
  --grounded-color: #3d8c40;
  --grounded-bg: #e8f5e9;
  --grounded-border: #81c784;
  
  /* Legacy verified - maps to grounded */
  --verified-color: var(--grounded-color);
  --verified-bg: var(--grounded-bg);
  --verified-border: var(--grounded-border);
  
  /* CANDIDATE (checking...) */
  --candidate-color: #b8860b;
  --candidate-bg: #fff8e1;
  --candidate-border: #ffd54f;
  
  /* Legacy inferred - maps to generated */
  --inferred-color: #78909c;
  --inferred-bg: #f5f7f9;
  --inferred-border: #b0bec5;
  
  /* GENERATED (AI output, default) */
  --generated-color: #78909c;
  --generated-bg: #f5f7f9;
  --generated-border: #b0bec5;
  
  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  
  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Roboto', 'Segoe UI', sans-serif;
  --font-size-xs: 12px;
  --font-size-sm: 14px;
  --font-size-base: 16px;
  --font-size-lg: 18px;
  --font-size-xl: 24px;
  --font-size-2xl: 32px;
  --font-size-3xl: 40px;
  
  --line-height: 1.6;
  --line-height-tight: 1.3;
  
  /* Borders */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.08);
  
  /* Layout */
  --max-width: 1200px;
  --content-width: 800px;
  --chat-width: 720px;
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height);
  color: var(--text-primary);
  background-color: var(--bg-primary);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-text-size-adjust: 100%;
}

/* =============================================================================
   Typography
   ============================================================================= */

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: var(--line-height-tight);
  color: var(--text-primary);
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }

p {
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

a {
  color: var(--accent-primary);
  text-decoration: none;
}

a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

/* =============================================================================
   Layout Components
   ============================================================================= */

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.container--narrow {
  max-width: var(--content-width);
}

.page-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.main-content {
  flex: 1;
}

/* =============================================================================
   Navigation
   ============================================================================= */

.nav {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-light);
  padding: var(--space-md) 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.nav__brand {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
}

.nav__links {
  display: flex;
  gap: var(--space-lg);
  align-items: center;
}

.nav__link {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  text-decoration: none;
  transition: color 0.2s;
}

.nav__link:hover {
  color: var(--text-primary);
  text-decoration: none;
}

.nav__link--active {
  color: var(--text-primary);
  font-weight: 500;
}

/* =============================================================================
   Buttons
   ============================================================================= */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  font-size: var(--font-size-sm);
  font-weight: 500;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
}

.btn:hover {
  text-decoration: none;
}

.btn--primary {
  background: var(--accent-primary);
  color: var(--text-inverse);
  border-color: var(--accent-primary);
}

.btn--primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

.btn--secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border-color: var(--border-medium);
}

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

.btn--ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: transparent;
}

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

.btn--lg {
  padding: var(--space-md) var(--space-xl);
  font-size: var(--font-size-base);
}

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

/* =============================================================================
   Cards
   ============================================================================= */

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
}

.card--alt {
  background: var(--bg-card-alt);
}

/* =============================================================================
   Forms
   ============================================================================= */

.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.form-input {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-base);
  font-family: inherit;
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-light);
}

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

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%235c6370' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

/* =============================================================================
   Footer
   ============================================================================= */

/* Features Section */
.features-section {
  padding: var(--space-3xl) 0;
  background: var(--bg-secondary);
}

.section-title {
  text-align: center;
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-2xl);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

@media (max-width: 900px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .features-grid {
    grid-template-columns: 1fr;
  }
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-align: center;
  transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.feature-card__icon {
  font-size: 40px;
  margin-bottom: var(--space-md);
}

.feature-card__title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.feature-card__desc {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Value Card Example */
.value-card__example {
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--border-light);
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}

/* Truth Section */
.truth-section {
  padding: var(--space-3xl) 0;
  background: var(--bg-primary);
}

.truth-section__title {
  text-align: center;
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-2xl);
}

.truth-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

@media (max-width: 600px) {
  .truth-cards {
    grid-template-columns: 1fr;
  }
}

.truth-card {
  background: var(--bg-card);
  border: 2px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
}

.truth-card--positive {
  border-color: var(--verified-border);
  background: var(--verified-bg);
}

.truth-card__header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.truth-card__icon {
  font-size: 24px;
}

.truth-card__label {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--text-primary);
}

.truth-card__list {
  list-style: none;
  padding-left: var(--space-lg);
}

.truth-card__list li {
  font-size: var(--font-size-base);
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
  position: relative;
}

.truth-card__list li::before {
  content: "•";
  position: absolute;
  left: -16px;
  color: var(--text-muted);
}

/* CTA Section */
.cta-section {
  padding: var(--space-3xl) 0;
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-hover) 100%);
  text-align: center;
}

.cta-section__title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: white;
  margin-bottom: var(--space-md);
}

.cta-section__desc {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-xl);
}

.cta-section .btn--primary {
  background: white;
  color: var(--accent-primary);
}

.cta-section .btn--primary:hover {
  background: var(--bg-secondary);
}

/* Hero Badge */
.hero__badge {
  display: inline-block;
  background: var(--accent-light);
  color: var(--accent-primary);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 500;
  margin-bottom: var(--space-lg);
}

.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-light);
  padding: var(--space-xl) 0;
  margin-top: auto;
}

.footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer__left {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.footer__brand {
  font-weight: 600;
  color: var(--text-primary);
}

.footer__meta {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}

.footer__links {
  display: flex;
  gap: var(--space-lg);
}

.footer__link {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

/* =============================================================================
   Landing Page — Hero
   ============================================================================= */

.hero {
  padding: var(--space-3xl) 0;
  text-align: center;
}

.hero__title {
  font-size: var(--font-size-3xl);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero__subtitle {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero__actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  margin-bottom: var(--space-md);
}

.hero__note {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}

/* =============================================================================
   Landing Page — Value Cards
   ============================================================================= */

.value-section {
  padding: var(--space-3xl) 0;
  background: var(--bg-secondary);
}

.value-section__title {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.value-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
}

.value-card__icon {
  font-size: 32px;
  margin-bottom: var(--space-md);
}

.value-card__title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.value-card__desc {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin: 0;
}

.value-card--verified {
  border-left: 4px solid var(--verified-color);
}

.value-card--inferred {
  border-left: 4px solid var(--inferred-color);
}

.value-card--generated {
  border-left: 4px solid var(--generated-color);
}

/* =============================================================================
   How It Works — Steps
   ============================================================================= */

.steps-section {
  padding: var(--space-3xl) 0;
}

.steps-section__title {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.steps-list {
  max-width: 600px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.step {
  display: flex;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.step__number {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  background: var(--accent-light);
  color: var(--accent-primary);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
}

.step__content {
  flex: 1;
}

.step__title {
  font-size: var(--font-size-base);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.step__desc {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin: 0;
}

.callout {
  background: var(--bg-card-alt);
  border-left: 4px solid var(--accent-primary);
  padding: var(--space-md) var(--space-lg);
  margin: var(--space-xl) auto;
  max-width: 600px;
  font-style: italic;
  color: var(--text-secondary);
}

/* =============================================================================
   About Page
   ============================================================================= */

.about-section {
  padding: var(--space-3xl) 0;
}

.about-content {
  max-width: 700px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.about-content h2 {
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-md);
}

.about-content h2:first-child {
  margin-top: 0;
}

.about-content p {
  margin-bottom: var(--space-md);
}

.about-content blockquote {
  background: var(--bg-card-alt);
  border-left: 4px solid var(--accent-primary);
  padding: var(--space-md) var(--space-lg);
  margin: var(--space-lg) 0;
  font-style: italic;
}

/* =============================================================================
   Auth Page (Login/Signup)
   ============================================================================= */

.auth-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.auth-container {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
}

.auth-card {
  width: 100%;
  max-width: 400px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-md);
}

.auth-card__header {
  text-align: center;
  margin-bottom: var(--space-lg);
}

.auth-card__title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-xs);
}

.auth-card__subtitle {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  margin: 0;
}

.auth-tabs {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.auth-tab {
  flex: 1;
  padding: var(--space-sm);
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
}

.auth-tab:hover {
  background: var(--bg-card-alt);
}

.auth-tab.active {
  background: var(--bg-card);
  color: var(--text-primary);
  font-weight: 500;
  border-color: var(--accent-primary);
}

.auth-form {
  display: none;
}

.auth-form.active {
  display: block;
}

.auth-error {
  color: var(--generated-color);
  font-size: var(--font-size-sm);
  text-align: center;
  margin-top: var(--space-md);
}

/* =============================================================================
   Profile Page
   ============================================================================= */

.profile-container {
  max-width: 700px;
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-lg);
}

.profile__title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-xl);
}

.profile-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin-bottom: var(--space-lg);
  box-shadow: var(--shadow-sm);
}

.profile-card--danger {
  border-color: #e74c3c;
}

.profile-card__header {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.profile-avatar {
  width: 64px;
  height: 64px;
  background: var(--accent-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
  font-weight: 600;
}

.profile-info__name {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--text-primary);
}

.profile-info__email {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-bottom: var(--space-xs);
}

.profile-info__plan {
  display: inline-block;
  background: var(--accent-light);
  color: var(--accent-primary);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 500;
}

.profile-card__title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

.profile-card__desc {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.stat-item {
  text-align: center;
  padding: var(--space-md);
  background: var(--bg-card-alt);
  border-radius: var(--radius-md);
}

.stat-item__value {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--accent-primary);
}

.stat-item__label {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  margin-top: var(--space-xs);
}

/* Settings List */
.settings-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.setting-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--border-light);
}

.setting-item:last-child {
  border-bottom: none;
}

.setting-item__title {
  font-weight: 500;
  color: var(--text-primary);
}

.setting-item__desc {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}

.setting-item .form-select {
  width: 160px;
}

/* Toggle Switch */
.toggle {
  position: relative;
  width: 48px;
  height: 24px;
}

.toggle input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle__slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--border-medium);
  transition: 0.3s;
  border-radius: var(--radius-full);
}

.toggle__slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: 0.3s;
  border-radius: 50%;
}

.toggle input:checked + .toggle__slider {
  background-color: var(--accent-primary);
}

.toggle input:checked + .toggle__slider:before {
  transform: translateX(24px);
}

/* History List */
.history-list {
  max-height: 300px;
  overflow-y: auto;
  margin-bottom: var(--space-md);
}

.history-item {
  padding: var(--space-md);
  border-bottom: 1px solid var(--border-light);
  cursor: pointer;
  transition: background 0.2s;
}

.history-item:hover {
  background: var(--bg-card-alt);
}

.history-item__question {
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.history-item__meta {
  display: flex;
  gap: var(--space-md);
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  margin-top: var(--space-xs);
}

.history-empty, .history-loading {
  padding: var(--space-xl);
  text-align: center;
  color: var(--text-muted);
}

.history-actions {
  display: flex;
  gap: var(--space-md);
}

/* Danger Button */
.btn--danger {
  background: #e74c3c;
  color: white;
  border-color: #c0392b;
}

.btn--danger:hover {
  background: #c0392b;
}

/* =============================================================================
   Chat Page Layout
   ============================================================================= */

.chat-page {
  height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg-primary);
}

.chat-header {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-light);
  padding: var(--space-md) var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.chat-header__left {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.chat-header__brand {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

.chat-header__brand::before {
  content: "";
  width: 24px;
  height: 24px;
  background: linear-gradient(135deg, #00d4aa, #6b9cde);
  border-radius: 6px;
  display: inline-block;
}

/* Chat/Code Tabs */
.chat-header__tabs {
  display: flex;
  gap: 4px;
  margin-left: var(--space-lg);
}

.chat-tab {
  padding: 6px 14px;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all 0.15s;
}

.chat-tab:hover {
  color: var(--text-primary);
  background: var(--bg-secondary);
  text-decoration: none;
}

.chat-tab--active {
  color: var(--text-primary);
  background: var(--bg-secondary);
  font-weight: 500;
}

.chat-header__controls {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.chat-header__control {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.chat-header__control select {
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--font-size-sm);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  color: var(--text-primary);
  cursor: pointer;
}

.chat-header__control select:hover {
  border-color: var(--accent-primary);
}

.chat-header__mode {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.chat-header__mode select {
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--font-size-sm);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  color: var(--text-primary);
}

.chat-header__right {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.chat-header__user {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

/* =============================================================================
   SAMBANOVA-INSPIRED CLEAN DESIGN
   ============================================================================= */

/* Header Badge */
.header-badge {
  font-size: 11px;
  font-weight: 500;
  padding: 2px 8px;
  background: var(--accent-light);
  color: var(--accent-primary);
  border-radius: var(--radius-full);
}

/* Model Select - Minimal */
.model-select {
  padding: 6px 12px;
  font-size: 13px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  background: var(--bg-card);
  color: var(--text-primary);
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%235c6370' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  padding-right: 28px;
}

.model-select:hover {
  border-color: var(--border-medium);
}

/* Header Icon Buttons */
.header-icon-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 18px;
  color: var(--text-secondary);
  transition: all 0.15s;
  text-decoration: none;
}

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

/* User Avatar - Clickable link to profile/settings */
.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-primary), #8b5cf6);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 600;
  color: white;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
  text-decoration: none;
}

.user-avatar:hover {
  transform: scale(1.08);
  box-shadow: 0 2px 8px rgba(139, 92, 246, 0.4);
  text-decoration: none;
  color: white;
}

/* =============================================================================
   CLEAN SIDEBAR (Sambanova-style)
   ============================================================================= */

/* New Chat Button */
.new-chat-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: calc(100% - 24px);
  margin: 12px;
  padding: 10px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
}

.new-chat-btn:hover {
  background: var(--bg-secondary);
  border-color: var(--border-medium);
}

.new-chat-btn span {
  font-size: 18px;
  font-weight: 300;
}

/* Sidebar Footer */
.chat-sidebar__footer {
  margin-top: auto;
  padding: 12px;
  border-top: 1px solid var(--border-light);
}

/* Delete Chats Button */
.delete-chats-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 10px 12px;
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  color: #e74c3c;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.15s;
}

.delete-chats-btn:hover {
  background: rgba(231, 76, 60, 0.1);
}

/* =============================================================================
   CLEAN EMPTY STATE (Personalized Greeting)
   ============================================================================= */

.empty-state__greeting {
  font-size: 32px;
  font-weight: 400;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.empty-state__greeting span {
  color: var(--text-primary);
}

.empty-state__title {
  font-size: 32px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-xl);
}

/* =============================================================================
   CLEAN INPUT AREA (Sambanova-style)
   ============================================================================= */

.chat-input-wrapper {
  display: flex;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 24px;
  padding: 8px 8px 8px 20px;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.chat-input-wrapper:focus-within {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-light);
}

.chat-input {
  flex: 1;
  border: none;
  background: transparent;
  font-size: 15px;
  color: var(--text-primary);
  outline: none;
  padding: 8px 0;
}

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

.chat-input-actions {
  display: flex;
  align-items: center;
  gap: 4px;
}

.input-icon-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  border-radius: 50%;
  cursor: pointer;
  font-size: 16px;
  color: var(--text-muted);
  transition: all 0.15s;
}

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

.input-icon-btn.active {
  background: var(--accent-light);
  color: var(--accent-primary);
}

/* Send Button */
.send-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-primary);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  color: white;
  transition: all 0.15s;
}

.send-btn:hover {
  background: var(--accent-hover);
  transform: scale(1.05);
}

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

.send-btn svg {
  width: 18px;
  height: 18px;
}

.chat-main {
  flex: 1;
  display: flex;
  overflow: hidden;
  position: relative;
}

/* Sidebar Toggle Button - Always visible */
.sidebar-toggle {
  position: fixed;
  left: 12px;
  top: 70px;
  z-index: 200;
  padding: 8px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s;
  box-shadow: var(--shadow-sm);
}

.sidebar-toggle__icon {
  font-size: 16px;
}

.sidebar-toggle__label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
}

.sidebar-toggle:hover {
  background: var(--bg-secondary);
  transform: scale(1.05);
  box-shadow: var(--shadow-md);
}

/* When sidebar is collapsed, make toggle more prominent */
.sidebar-toggle--active {
  background: var(--accent-primary);
  color: white;
  border-color: var(--accent-primary);
}

.sidebar-toggle--active .sidebar-toggle__label {
  color: white;
}

.sidebar-toggle--active:hover {
  background: var(--accent-dark);
}

.chat-sidebar {
  width: 220px;
  min-width: 220px;
  background: var(--bg-card);
  border-right: 1px solid var(--border-light);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: width 0.3s, min-width 0.3s;
}

.chat-sidebar.collapsed {
  width: 0;
  min-width: 0;
  border-right: none;
}

.chat-sidebar.collapsed > * {
  display: none;
}

.chat-sidebar__header {
  padding: var(--space-md);
  border-bottom: 1px solid var(--border-light);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.chat-sidebar__title {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-primary);
}

.chat-sidebar__actions {
  display: flex;
  gap: 4px;
}

/* Sidebar Action Buttons */
.sidebar-action-btn {
  width: 28px;
  height: 28px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: var(--radius-sm);
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

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

.sidebar-action-btn--danger:hover {
  background: rgba(220, 53, 69, 0.15);
  color: #dc3545;
}

.chat-sidebar__list {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-sm);
}

.chat-history-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  cursor: pointer;
  margin-bottom: var(--space-xs);
  transition: background 0.2s;
  gap: var(--space-sm);
}

.chat-history-item__text {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chat-history-item__delete {
  display: none;
  width: 20px;
  height: 20px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: var(--radius-sm);
  font-size: 14px;
  line-height: 1;
  transition: all 0.2s;
  flex-shrink: 0;
}

.chat-history-item:hover .chat-history-item__delete {
  display: flex;
  align-items: center;
  justify-content: center;
}

.chat-history-item__delete:hover {
  background: rgba(220, 53, 69, 0.15);
  color: #dc3545;
}

.chat-history-item:hover {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.chat-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-lg);
}

.chat-messages__inner {
  max-width: var(--chat-width);
  margin: 0 auto;
}

/* =============================================================================
   Chat Messages
   ============================================================================= */

.message {
  margin-bottom: var(--space-xl);
}

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

.message__bubble {
  display: inline-block;
  max-width: 85%;
  text-align: left;
}

.message--user .message__bubble {
  background: var(--accent-primary);
  color: var(--text-inverse);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  position: relative;
}

.message--user .message__bubble .message__text {
  flex: 1;
  color: inherit;
}

/* Message Delete Button */
.message__delete {
  display: none;
  width: 24px;
  height: 24px;
  border: none;
  background: rgba(255, 255, 255, 0.2);
  color: inherit;
  cursor: pointer;
  border-radius: var(--radius-sm);
  font-size: 14px;
  line-height: 1;
  transition: all 0.2s;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
}

.message--user:hover .message__delete {
  display: flex;
}

.message__delete:hover {
  background: rgba(255, 255, 255, 0.3);
}

/* Delete button for assistant messages */
.message__delete--assistant {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  background: var(--bg-secondary);
  color: var(--text-muted);
}

.message--assistant:hover .message__delete--assistant {
  display: flex;
}

.message__delete--assistant:hover {
  background: rgba(220, 53, 69, 0.15);
  color: #dc3545;
}

/* Delete button in analysis toggle row */
.message__delete-btn {
  border: none;
  background: transparent;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  opacity: 0;
  transition: all 0.2s;
}

.message:hover .message__delete-btn {
  opacity: 0.5;
}

.message__delete-btn:hover {
  opacity: 1;
  background: rgba(220, 53, 69, 0.15);
}

.message--assistant .message__content {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
}

.message__text {
  font-size: var(--font-size-base);
  line-height: var(--line-height);
  color: var(--text-primary);
}

.message__text p {
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.message__text p:last-child {
  margin-bottom: 0;
}

/* Casual Messages (greetings, thanks, etc.) */
.message--casual .message__bubble {
  background: linear-gradient(135deg, var(--accent-light) 0%, #f8fafc 100%);
  border: 1px solid var(--accent-primary);
  border-left: 3px solid var(--accent-primary);
}

.message__text--casual {
  font-size: var(--font-size-base);
  line-height: 1.7;
  color: var(--text-primary);
}

.message__text--casual strong {
  color: var(--accent-primary);
  font-weight: 600;
}

/* Analysis Toggle */
.message__analysis-toggle {
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--border-light);
}

.analysis-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: color 0.2s;
}

.analysis-toggle-btn:hover {
  color: var(--text-primary);
}

.analysis-toggle-btn__icon {
  transition: transform 0.2s;
}

.analysis-toggle-btn.expanded .analysis-toggle-btn__icon {
  transform: rotate(180deg);
}

/* Trust Summary */
.trust-summary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  margin-left: var(--space-md);
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}

.trust-summary__item {
  display: flex;
  align-items: center;
  gap: 2px;
}

.trust-summary__bar {
  width: 50px;
  height: 6px;
  background: rgba(220, 53, 69, 0.3);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.trust-summary__bar-fill {
  height: 100%;
  background: linear-gradient(90deg, #28a745, #20c997);
  border-radius: var(--radius-full);
  transition: width 0.3s ease;
}

.trust-summary__percent {
  font-weight: 600;
  color: var(--text-secondary);
}

/* Message Action Buttons Container */
.message__actions {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  margin-top: var(--space-sm);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--border-light, rgba(255,255,255,0.1));
}

/* Action Button Base Style */
.msg-action-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 10px;
  font-size: 14px;
  color: var(--text-secondary, #a3a3a3);
  background: transparent;
  border: 1px solid var(--border, #333);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
}

.msg-action-btn:hover {
  background: var(--bg-tertiary, #262626);
  color: var(--text-primary, #e5e5e5);
  border-color: var(--text-secondary, #a3a3a3);
}

.msg-action-btn.success {
  color: #22c55e;
  border-color: #22c55e;
}

.msg-action-btn .icon {
  font-size: 14px;
}

.msg-action-btn .icon.spinning {
  animation: spin 1s linear infinite;
}

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

/* Specific action button colors */
.msg-action-btn.copy-btn:hover {
  color: #60a5fa;
  border-color: #60a5fa;
}

.msg-action-btn.retry-btn:hover {
  color: #f59e0b;
  border-color: #f59e0b;
}

.msg-action-btn.delete-btn:hover {
  color: #ef4444;
  border-color: #ef4444;
}

/* Share Button */
.share-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 6px 10px;
  font-size: var(--font-size-xs);
  font-weight: 500;
  color: var(--accent-primary);
  background: transparent;
  border: 1px solid var(--border, #333);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
}

.share-btn:hover:not(:disabled) {
  background: var(--accent-primary);
  color: white;
}

.share-btn:disabled {
  opacity: 0.6;
  cursor: default;
}

/* Export Button */
.export-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 6px 10px;
  font-size: var(--font-size-xs);
  font-weight: 500;
  color: #9b59b6;
  background: transparent;
  border: 1px solid var(--border, #333);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
}

.export-btn:hover:not(:disabled) {
  background: #9b59b6;
  color: white;
}

.export-btn:disabled {
  opacity: 0.6;
  cursor: default;
}

/* Analysis Panel */
.message__analysis {
  display: none;
  margin-top: var(--space-md);
  padding: var(--space-md);
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
}

.message__analysis.expanded {
  display: block;
}

.analysis-title {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

/* =============================================================================
   Claims (Inside Analysis Panel)
   ============================================================================= */

.claim {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  margin-bottom: var(--space-sm);
}

.claim:last-child {
  margin-bottom: 0;
}

.claim--grounded {
  border-left: 4px solid var(--grounded-color);
}

.claim--verified {
  border-left: 4px solid var(--grounded-color);
}

.claim--candidate {
  border-left: 4px solid var(--candidate-color);
}

.claim--inferred {
  border-left: 4px solid var(--generated-color);
}

.claim--generated {
  border-left: 4px solid var(--generated-color);
}

.claim__header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.claim__icon {
  font-size: var(--font-size-base);
}

.claim__type {
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.claim__type--grounded { color: var(--grounded-color); }
.claim__type--verified { color: var(--grounded-color); }
.claim__type--candidate { color: var(--candidate-color); }
.claim__type--inferred { color: var(--generated-color); }
.claim__type--generated { color: var(--generated-color); }

.claim__text {
  font-size: var(--font-size-base);
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
  line-height: 1.6;
}

/* Code blocks in claims */
.claim__text pre {
  background: #1e1e1e;
  border-radius: var(--radius-md);
  padding: var(--space-md);
  margin: var(--space-sm) 0;
  overflow-x: auto;
  position: relative;
}

.claim__text pre code {
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  font-size: 13px;
  line-height: 1.5;
  color: #d4d4d4;
}

.claim__text code:not(pre code) {
  background: var(--bg-secondary);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  font-size: 0.9em;
  color: var(--accent-primary);
}

/* Copy button for code blocks */
.code-copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  padding: 4px 8px;
  font-size: 11px;
  background: rgba(255,255,255,0.1);
  border: none;
  border-radius: 4px;
  color: #888;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.15s, background 0.15s;
}

.claim__text pre:hover .code-copy-btn {
  opacity: 1;
}

.code-copy-btn:hover {
  background: rgba(255,255,255,0.2);
  color: #fff;
}

.claim__meta {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}

.claim__source {
  color: var(--accent-primary);
}

.claim__quote {
  display: block;
  margin-top: var(--space-xs);
  padding: var(--space-sm);
  background: var(--verified-bg);
  border-radius: var(--radius-sm);
  font-style: italic;
  color: var(--text-secondary);
}

.claim__reasoning {
  display: block;
  margin-top: var(--space-xs);
  padding: var(--space-sm);
  background: var(--inferred-bg);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
}

.claim__warning {
  display: block;
  margin-top: var(--space-xs);
  padding: var(--space-sm);
  background: var(--generated-bg);
  border-radius: var(--radius-sm);
  color: var(--generated-color);
}

.claim__note {
  display: block;
  margin-top: var(--space-xs);
  padding: var(--space-sm);
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
}

/* Why Generated Button */
.claim__why-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-left: var(--space-sm);
  padding: 2px 8px;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s;
}

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

.claim__why {
  display: none;
  margin-top: var(--space-sm);
  padding: var(--space-sm);
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  background: rgba(220, 53, 69, 0.08);
  border-left: 3px solid #dc3545;
  border-radius: var(--radius-sm);
}

.claim__why--visible {
  display: block;
}

/* =============================================================================
   Independent Fact Check (Wikipedia)
   ============================================================================= */

.claim__fact-check {
  margin-top: var(--space-md);
  padding: var(--space-md);
  background: linear-gradient(135deg, #f0f7ff 0%, #e8f4f8 100%);
  border: 1px solid #cce4f0;
  border-radius: var(--radius-md);
}

.fact-check__header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: #2980b9;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.fact-check__icon {
  font-size: var(--font-size-sm);
}

.fact-check__label {
  color: #2980b9;
}

.fact-check__count {
  margin-left: auto;
  font-size: 10px;
  font-weight: 400;
  color: var(--text-muted);
  text-transform: none;
  letter-spacing: normal;
}

.fact-check__source {
  margin-bottom: var(--space-xs);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.fact-check__source a {
  color: #1a5276;
  font-weight: 500;
  text-decoration: none;
}

.fact-check__source a:hover {
  text-decoration: underline;
}

.fact-check__source-badge {
  font-size: 10px;
  background: rgba(0,0,0,0.1);
  padding: 2px 6px;
  border-radius: 10px;
  color: var(--text-muted);
}

.fact-check__providers {
  font-size: 10px;
  color: var(--text-muted);
  margin-bottom: var(--space-xs);
}

.fact-check__extract {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  font-style: italic;
  line-height: 1.5;
  padding-left: var(--space-sm);
  border-left: 2px solid #85c1e9;
}

/* Verified fact check - celebratory styling */
.claim__fact-check--verified {
  background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
  border-color: #28a745;
}

.claim__fact-check--verified .fact-check__header {
  color: #155724;
}

.claim__fact-check--verified .fact-check__label {
  color: #155724;
  font-weight: 700;
}

.claim__fact-check--verified .fact-check__source a {
  color: #155724;
}

.claim__fact-check--verified .fact-check__extract {
  border-left-color: #28a745;
  color: #155724;
}

/* No evidence found */
.claim__fact-check--none {
  background: var(--bg-secondary);
  border-color: var(--border-light);
}

.claim__fact-check--none .fact-check__label {
  color: var(--text-muted);
  font-weight: 400;
}

/* =============================================================================
   Consensus Display (Multi-Model)
   ============================================================================= */

.claim__consensus {
  margin-top: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  background: var(--bg-card-alt);
  border-left: 3px solid var(--border-medium);
}

.consensus__header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 12px;
}

.consensus__icon {
  font-size: 14px;
}

.consensus__label {
  font-weight: 500;
  color: var(--text-primary);
}

.consensus__percent {
  margin-left: auto;
  font-size: 11px;
  color: var(--text-muted);
  background: var(--bg-secondary);
  padding: 2px 6px;
  border-radius: 10px;
}

/* Consensus types */
.consensus--high {
  border-left-color: var(--verified-color);
  background: var(--verified-bg);
}

.consensus--high .consensus__label {
  color: var(--verified-color);
}

.consensus--medium {
  border-left-color: var(--inferred-color);
  background: var(--inferred-bg);
}

.consensus--medium .consensus__label {
  color: var(--inferred-color);
}

.consensus--low {
  border-left-color: #e57373;
  background: #ffebee;
}

.consensus--low .consensus__label {
  color: #c62828;
}

.consensus--single {
  border-left-color: var(--border-medium);
  background: var(--bg-card-alt);
}

.consensus__details {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-top: var(--space-xs);
}

.consensus__model {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 12px;
  background: var(--bg-secondary);
}

.consensus__model--agree {
  background: var(--verified-bg);
  color: var(--verified-color);
}

.consensus__model--disagree {
  background: #ffebee;
  color: #c62828;
}

.consensus__model-name {
  text-transform: capitalize;
}

.consensus__model-icon {
  font-size: 9px;
}

/* Consensus Summary (top of analysis panel) */
.consensus-summary {
  margin-bottom: var(--space-md);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
}

.consensus-summary__header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-xs);
}

.consensus-summary__icon {
  font-size: 16px;
}

.consensus-summary__title {
  font-weight: 600;
  font-size: 13px;
  color: var(--text-primary);
}

.consensus-summary__agreement {
  margin-left: auto;
  font-size: 12px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 10px;
  background: var(--bg-card);
}

.consensus-summary--high .consensus-summary__agreement {
  background: var(--verified-bg);
  color: var(--verified-color);
}

.consensus-summary--medium .consensus-summary__agreement {
  background: var(--inferred-bg);
  color: var(--inferred-color);
}

.consensus-summary--low .consensus-summary__agreement {
  background: #ffebee;
  color: #c62828;
}

.consensus-summary__models {
  display: flex;
  gap: var(--space-xs);
  margin-bottom: var(--space-xs);
}

.consensus-summary__model {
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 10px;
  background: var(--bg-card);
  color: var(--text-secondary);
  text-transform: capitalize;
}

.consensus-summary__text {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: var(--space-xs);
}

/* Multi-Model Badge */
.multi-model-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: linear-gradient(135deg, var(--accent-primary), #9333ea);
  color: white;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  margin-right: 6px;
  animation: pulse-badge 2s ease-in-out infinite;
}

@keyframes pulse-badge {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.8; }
}

/* =============================================================================
   Claim DNA (Sentence-level origin tracking)
   ============================================================================= */

.claim__dna {
  margin-top: var(--space-md);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  border: 1px solid var(--border-light);
}

.dna__header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--border-light);
}

.dna__icon {
  font-size: 16px;
}

.dna__title {
  font-weight: 600;
  font-size: 13px;
  color: var(--text-primary);
}

.dna__overall {
  margin-left: auto;
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 12px;
  font-weight: 500;
}

.dna__overall.dna--searched,
.dna__overall.dna--candidate {
  background: var(--inferred-bg);
  color: var(--inferred-color);
}

.dna__overall.dna--predicted,
.dna__overall.dna--generated {
  background: var(--generated-bg);
  color: var(--generated-color);
}

.dna__overall.dna--uncertain {
  background: var(--generated-bg);
  color: var(--generated-color);
}

.dna__overall.dna--creative {
  background: #f3e5f5;
  color: #7b1fa2;
}

.dna__overall.dna--grounded {
  background: var(--verified-bg);
  color: var(--verified-color);
}

.dna__sentences {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.dna-sentence {
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border-left: 3px solid var(--border-medium);
}

.dna-sentence.dna--searched,
.dna-sentence.dna--candidate {
  border-left-color: var(--inferred-color);
  background: rgba(184, 134, 11, 0.05);
}

.dna-sentence.dna--predicted,
.dna-sentence.dna--generated {
  border-left-color: var(--generated-color);
  background: rgba(92, 107, 122, 0.05);
}

.dna-sentence.dna--uncertain {
  border-left-color: var(--generated-color);
  background: rgba(92, 107, 122, 0.05);
}

.dna-sentence.dna--creative {
  border-left-color: #7b1fa2;
  background: rgba(123, 31, 162, 0.05);
}

.dna-sentence.dna--grounded {
  border-left-color: var(--verified-color);
  background: rgba(61, 140, 64, 0.05);
}

.dna-sentence__header {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  margin-bottom: var(--space-xs);
}

.dna-sentence__icon {
  font-size: 12px;
}

.dna-sentence__label {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.dna--searched .dna-sentence__label,
.dna--candidate .dna-sentence__label { color: var(--inferred-color); }
.dna--predicted .dna-sentence__label,
.dna--generated .dna-sentence__label { color: var(--generated-color); }
.dna--uncertain .dna-sentence__label { color: var(--generated-color); }
.dna--creative .dna-sentence__label { color: #7b1fa2; }
.dna--grounded .dna-sentence__label { color: var(--verified-color); }

.dna-sentence__score {
  margin-left: auto;
  font-size: 10px;
  color: var(--text-muted);
  background: var(--bg-secondary);
  padding: 1px 6px;
  border-radius: 8px;
}

.dna-sentence__text {
  font-size: 12px;
  color: var(--text-primary);
  line-height: 1.5;
}

.dna-sentence__explanation {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: var(--space-xs);
  font-style: italic;
}

.dna-sentence__source {
  margin-top: var(--space-xs);
}

.dna-sentence__source a {
  font-size: 11px;
  color: var(--accent-primary);
  text-decoration: none;
}

.dna-sentence__source a:hover {
  text-decoration: underline;
}

.dna__footer {
  margin-top: var(--space-sm);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--border-light);
}

.dna__sources-count {
  font-size: 11px;
  color: var(--text-muted);
}

/* =============================================================================
   Code Analysis (Developer Mode)
   ============================================================================= */

.claim__code-analysis {
  margin-top: var(--space-md);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #1e1e2e 0%, #252536 100%);
  border: 1px solid #3d3d5c;
}

.code-analysis__header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.code-analysis__icon {
  font-size: 16px;
}

.code-analysis__title {
  font-weight: 600;
  font-size: 13px;
  color: #ffffff;
}

.code-analysis__lang {
  margin-left: auto;
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.1);
  color: #a0a0c0;
  font-family: 'Monaco', 'Consolas', monospace;
  text-transform: uppercase;
}

.code-analysis__summary {
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  font-size: 13px;
  margin-bottom: var(--space-md);
}

.code-analysis__summary.code-summary--safe {
  background: rgba(61, 140, 64, 0.15);
  color: #7ce07c;
  border-left: 3px solid #4caf50;
}

.code-analysis__summary.code-summary--warning {
  background: rgba(255, 152, 0, 0.15);
  color: #ffcc80;
  border-left: 3px solid #ff9800;
}

.code-section__title {
  font-size: 11px;
  font-weight: 600;
  color: #a0a0c0;
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Package validation */
.code-analysis__packages {
  margin-bottom: var(--space-md);
}

.code-pkg-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.code-pkg {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: 14px;
  font-size: 11px;
}

.code-pkg.pkg--stdlib {
  background: rgba(33, 150, 243, 0.15);
  color: #64b5f6;
}

.code-pkg.pkg--popular {
  background: rgba(76, 175, 80, 0.15);
  color: #81c784;
}

.code-pkg.pkg--unknown {
  background: rgba(255, 255, 255, 0.05);
  color: #a0a0c0;
}

.code-pkg.pkg--invalid {
  background: rgba(244, 67, 54, 0.15);
  color: #ef5350;
}

.code-pkg__icon {
  font-size: 10px;
}

.code-pkg__name {
  font-family: 'Monaco', 'Consolas', monospace;
  font-weight: 500;
}

.code-pkg__label {
  font-size: 9px;
  opacity: 0.7;
  margin-left: 2px;
}

/* Security issues */
.code-analysis__security {
  margin-bottom: var(--space-md);
}

.code-security {
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-xs);
}

.code-security.security--high {
  background: rgba(244, 67, 54, 0.15);
  border-left: 3px solid #f44336;
}

.code-security.security--medium {
  background: rgba(255, 152, 0, 0.15);
  border-left: 3px solid #ff9800;
}

.code-security.security--low {
  background: rgba(255, 235, 59, 0.1);
  border-left: 3px solid #fdd835;
}

.code-security__header {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  margin-bottom: 4px;
}

.code-security__icon {
  font-size: 12px;
}

.code-security__severity {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.security--high .code-security__severity { color: #ef5350; }
.security--medium .code-security__severity { color: #ffb74d; }
.security--low .code-security__severity { color: #fdd835; }

.code-security__message {
  font-size: 12px;
  color: #e0e0e0;
  line-height: 1.4;
}

.code-security__fix {
  font-size: 11px;
  color: #81c784;
  margin-top: 4px;
}

/* Deprecated patterns */
.code-analysis__deprecated {
  margin-bottom: var(--space-sm);
}

.code-deprecated {
  display: flex;
  align-items: flex-start;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  background: rgba(255, 152, 0, 0.1);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-xs);
}

.code-deprecated__icon {
  font-size: 11px;
}

.code-deprecated__message {
  font-size: 11px;
  color: #ffcc80;
  line-height: 1.4;
}

/* =============================================================================
   Time Awareness (Freshness detection)
   ============================================================================= */

.claim__time-awareness {
  margin-top: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  border-left: 3px solid;
}

.claim__time-awareness.time--high {
  background: rgba(244, 67, 54, 0.08);
  border-left-color: #f44336;
}

.claim__time-awareness.time--medium {
  background: rgba(255, 152, 0, 0.08);
  border-left-color: #ff9800;
}

.claim__time-awareness.time--low {
  background: rgba(76, 175, 80, 0.08);
  border-left-color: #4caf50;
}

.time-awareness__header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-xs);
}

.time-awareness__icon {
  font-size: 14px;
}

.time-awareness__label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.time--high .time-awareness__label { color: #e53935; }
.time--medium .time-awareness__label { color: #ef6c00; }
.time--low .time-awareness__label { color: #43a047; }

.time-awareness__risk {
  margin-left: auto;
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.1);
  color: var(--text-muted);
}

.time-awareness__recommendation {
  font-size: 12px;
  color: var(--text-primary);
  line-height: 1.5;
  margin-bottom: var(--space-xs);
}

.time-awareness__signals {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: var(--space-xs);
}

.time-signal {
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.05);
  color: var(--text-muted);
  font-family: 'Monaco', 'Consolas', monospace;
}

.time-awareness__dates {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: var(--space-xs);
}

.time-dates__label {
  font-weight: 500;
}

.time-date {
  background: rgba(0, 0, 0, 0.05);
  padding: 1px 6px;
  border-radius: 4px;
  margin-left: 4px;
}

.time-awareness__cutoff {
  font-size: 10px;
  color: var(--text-muted);
  margin-top: var(--space-xs);
  font-style: italic;
}

/* =============================================================================
   Controversy Detection
   ============================================================================= */

.claim__controversy {
  margin-top: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  border-left: 3px solid;
}

.claim__controversy.controversy--high {
  background: linear-gradient(135deg, rgba(156, 39, 176, 0.08) 0%, rgba(103, 58, 183, 0.08) 100%);
  border-left-color: #9c27b0;
}

.claim__controversy.controversy--medium {
  background: rgba(255, 152, 0, 0.08);
  border-left-color: #ff9800;
}

.claim__controversy.controversy--low {
  background: rgba(33, 150, 243, 0.08);
  border-left-color: #2196f3;
}

.controversy__header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-xs);
}

.controversy__icon {
  font-size: 14px;
}

.controversy__label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.controversy--high .controversy__label { color: #9c27b0; }
.controversy--medium .controversy__label { color: #ef6c00; }
.controversy--low .controversy__label { color: #1976d2; }

.controversy__balance,
.controversy__caution {
  margin-left: auto;
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 10px;
  background: rgba(156, 39, 176, 0.15);
  color: #9c27b0;
}

.controversy__recommendation {
  font-size: 12px;
  color: var(--text-primary);
  line-height: 1.5;
  margin-bottom: var(--space-xs);
}

.controversy__topics {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  margin-top: var(--space-xs);
}

.controversy__topics-label {
  font-size: 10px;
  color: var(--text-muted);
}

.controversy-topic {
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.05);
  color: var(--text-secondary);
}

.controversy__warning {
  font-size: 10px;
  color: var(--text-muted);
  margin-top: var(--space-sm);
  padding: var(--space-xs) var(--space-sm);
  background: rgba(0, 0, 0, 0.03);
  border-radius: var(--radius-sm);
  font-style: italic;
}

/* Signal warning (for consensus reframing) */
.signal__warning,
.consensus__warning {
  font-size: 10px;
  color: var(--text-muted);
  margin-top: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  background: rgba(255, 152, 0, 0.08);
  border-radius: var(--radius-sm);
  font-style: italic;
  border-left: 2px solid var(--inferred-color);
}

.controversy__bias {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  margin-top: var(--space-xs);
}

.controversy__bias-label {
  font-size: 10px;
  color: var(--text-muted);
}

.bias-tag {
  font-size: 9px;
  padding: 2px 8px;
  border-radius: 10px;
  font-weight: 500;
}

.bias-tag--left {
  background: rgba(33, 150, 243, 0.15);
  color: #1976d2;
}

.bias-tag--right {
  background: rgba(244, 67, 54, 0.15);
  color: #d32f2f;
}

.bias-tag--alarmist {
  background: rgba(255, 87, 34, 0.15);
  color: #e64a19;
}

.bias-tag--dismissive {
  background: rgba(158, 158, 158, 0.2);
  color: #616161;
}

/* =============================================================================
   Chat Input
   ============================================================================= */

.chat-input-area {
  background: var(--bg-primary);
  border-top: 1px solid var(--border-light);
  padding: var(--space-md) var(--space-lg);
  flex-shrink: 0;
}

.chat-input-wrapper {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 24px;
  padding: 8px 8px 8px 16px;
  max-width: var(--chat-width);
  margin: 0 auto;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.chat-input-wrapper:focus-within {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-light);
}

/* Code Mode Toggle Button */
.code-toggle {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 10px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s;
  flex-shrink: 0;
}

.code-toggle:hover {
  background: var(--bg-card-alt);
  border-color: var(--border-medium);
}

.code-toggle--active {
  background: linear-gradient(135deg, #238636 0%, #2ea043 100%);
  border-color: #238636;
  color: white;
}

.code-toggle--active:hover {
  background: linear-gradient(135deg, #2ea043 0%, #3fb950 100%);
}

.code-toggle__icon {
  font-size: 14px;
}

.code-toggle__label {
  font-size: 12px;
  font-weight: 500;
}

.chat-input {
  flex: 1;
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--font-size-sm);
  font-family: inherit;
  color: var(--text-primary);
  background: transparent;
  border: none;
  outline: none;
}

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

/* Fact Check Textarea */
.fact-check-input {
  flex: 1;
  min-height: 60px;
  max-height: 150px;
  padding: var(--space-sm);
  font-size: var(--font-size-sm);
  font-family: inherit;
  color: var(--text-primary);
  background: transparent;
  border: none;
  outline: none;
  resize: vertical;
}

.fact-check-input::placeholder {
  color: var(--text-muted);
}

.chat-send-btn {
  padding: 10px 20px;
  background: linear-gradient(135deg, #00d4aa, #00b894);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: var(--font-size-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: 0 2px 8px rgba(0, 212, 170, 0.3);
}

.chat-send-btn:hover:not(:disabled) {
  background: linear-gradient(135deg, #00e6b8, #00d4aa);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 212, 170, 0.4);
}

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

/* =============================================================================
   Chat Explainer & Footer
   ============================================================================= */

.chat-explainer {
  text-align: center;
  font-size: 11px;
  color: var(--text-muted);
  margin: 0 0 var(--space-xs) 0;
  opacity: 0.8;
}

.chat-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--space-xs);
  padding: 0 var(--space-xs);
}

.model-disclosure {
  font-size: 10px;
  color: var(--text-muted);
  opacity: 0.6;
}

/* =============================================================================
   Legend
   ============================================================================= */

.legend {
  display: flex;
  gap: var(--space-md);
  font-size: 10px;
  color: var(--text-muted);
}

.legend__item {
  display: flex;
  align-items: center;
  gap: 2px;
}

.legend__item--grounded { color: var(--grounded-color); }
.legend__item--verified { color: var(--grounded-color); }
.legend__item--generated { color: var(--generated-color); }

/* =============================================================================
   Empty State - Unique Layal Design
   ============================================================================= */

.empty-state {
  text-align: center;
  padding: var(--space-3xl) var(--space-lg);
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
}

.empty-state__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: linear-gradient(135deg, rgba(0, 212, 170, 0.1), rgba(107, 156, 222, 0.1));
  border: 1px solid rgba(0, 212, 170, 0.3);
  border-radius: 24px;
  margin-bottom: var(--space-lg);
  font-size: var(--font-size-sm);
  color: var(--accent-primary);
  font-weight: 500;
}

.empty-state__pulse {
  width: 8px;
  height: 8px;
  background: var(--accent-primary);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.2); }
}

.empty-state__icon {
  font-size: 48px;
  margin-bottom: var(--space-md);
  opacity: 0.5;
}

.empty-state__title {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
  letter-spacing: -0.5px;
}

.empty-state__desc {
  font-size: var(--font-size-md);
  color: var(--text-secondary);
  margin: 0 auto var(--space-xl);
  max-width: 480px;
  line-height: 1.6;
}

.empty-state__desc strong {
  color: var(--accent-primary);
}

.empty-state__features {
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
  margin-top: var(--space-xl);
  flex-wrap: wrap;
}

.empty-state__feature {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  transition: all 0.2s;
}

.empty-state__feature:hover {
  background: var(--bg-card);
  color: var(--text-primary);
  transform: translateY(-2px);
}

.empty-state__feature-icon {
  font-size: 16px;
}

.keyboard-hint {
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
  margin-top: var(--space-xl);
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}

/* =============================================================================
   Utilities
   ============================================================================= */

.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.text-sm { font-size: var(--font-size-sm); }
.text-xs { font-size: var(--font-size-xs); }

.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }

.hidden { display: none !important; }

/* =============================================================================
   DARK MODE
   ============================================================================= */

.dark-mode {
  --bg-primary: #1a1d21;
  --bg-secondary: #23272b;
  --bg-card: #2a2f35;
  --bg-card-alt: #1f2328;
  --bg-input: #2a2f35;
  
  --border-light: #3a3f45;
  --border-medium: #4a4f55;
  
  --text-primary: #e8eaed;
  --text-secondary: #b0b5bd;
  --text-muted: #787f8a;
  
  --accent-primary: #6b9cde;
  --accent-hover: #89b3eb;
  --accent-light: #2a3a4d;
  
  --verified-bg: #1a3320;
  --verified-border: #3d8c40;
  
  --inferred-bg: #332b1a;
  --inferred-border: #b8860b;
  
  --generated-bg: #262b30;
  --generated-border: #5c6b7a;
  
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.4);
}

.dark-mode .chat-input__textarea,
.dark-mode .chat-input__send,
.dark-mode input,
.dark-mode select {
  background-color: var(--bg-input);
  color: var(--text-primary);
  border-color: var(--border-medium);
}

.dark-mode .nav {
  background: var(--bg-card);
  border-color: var(--border-light);
}

.dark-mode .message--user .message__bubble {
  background: var(--accent-primary);
  color: white;
}

.dark-mode .message--assistant .message__bubble {
  background: var(--bg-card);
}

/* =============================================================================
   LOADING STATES
   ============================================================================= */

.loading-spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: white;
  animation: spin 0.8s linear infinite;
  margin-right: 6px;
  vertical-align: middle;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.chat-input__send.loading {
  background: var(--accent-hover);
  cursor: not-allowed;
}

/* Typing Indicator */
.typing-indicator .message__bubble {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
}

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

.typing-dots span {
  width: 8px;
  height: 8px;
  background: var(--text-muted);
  border-radius: 50%;
  animation: typing-bounce 1.4s infinite ease-in-out both;
}

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

@keyframes typing-bounce {
  0%, 80%, 100% {
    transform: scale(0.6);
    opacity: 0.5;
  }
  40% {
    transform: scale(1);
    opacity: 1;
  }
}

.typing-text {
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  font-style: italic;
}

/* =============================================================================
   STREAMING PROGRESS INDICATOR
   ============================================================================= */

.streaming-progress .message__bubble {
  padding: var(--space-md);
  min-width: 280px;
}

.streaming-status {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.streaming-step {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  transition: all 0.3s ease;
}

.streaming-step .step-icon {
  width: 16px;
  text-align: center;
  font-size: var(--font-size-xs);
}

.streaming-step.active {
  color: var(--accent-primary);
  font-weight: 500;
}

.streaming-step.active .step-icon {
  animation: pulse 1s infinite;
}

.streaming-step.complete {
  color: var(--grounded-color);
}

.streaming-step.complete .step-icon {
  color: var(--grounded-color);
}

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

.streaming-claims {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  margin-top: var(--space-sm);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--border-light);
}

.streaming-claims:empty {
  display: none;
}

.streaming-claim {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--font-size-xs);
  border-radius: var(--radius-sm);
  background: var(--bg-secondary);
  animation: slideIn 0.3s ease;
}

.streaming-claim .claim-badge {
  flex-shrink: 0;
}

.streaming-claim.claim--grounded {
  background: var(--grounded-bg);
  color: var(--grounded-color);
}

.streaming-claim.claim--generated {
  background: var(--generated-bg);
  color: var(--generated-color);
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* =============================================================================
   SUGGESTED QUESTIONS
   ============================================================================= */

#suggested-questions {
  display: none;
  flex-wrap: wrap;
  gap: var(--space-sm);
  padding: var(--space-md);
  justify-content: center;
}

.suggested-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
}

.suggested-btn:hover {
  background: var(--accent-light);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

/* =============================================================================
   QUICK ACTIONS
   ============================================================================= */

#quick-actions {
  display: flex;
  gap: var(--space-xs);
  margin-left: var(--space-md);
}

.quick-action-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  background: var(--bg-card);
  cursor: pointer;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.quick-action-btn:hover {
  background: var(--bg-secondary);
  border-color: var(--border-medium);
}

/* =============================================================================
   CLAIM FEEDBACK
   ============================================================================= */

.claim__feedback {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--border-light);
}

.feedback-label {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}

.feedback-btn {
  background: none;
  border: none;
  padding: 4px 8px;
  cursor: pointer;
  opacity: 0.6;
  font-size: 16px;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.feedback-btn:hover {
  opacity: 1;
  background: var(--bg-secondary);
}

.feedback-thanks {
  font-size: var(--font-size-xs);
  color: var(--verified-color);
}

/* =============================================================================
   SEARCH RESULTS
   ============================================================================= */

.search-results-header {
  padding: var(--space-sm) var(--space-md);
  background: var(--accent-light);
  color: var(--accent-primary);
  font-size: var(--font-size-sm);
  font-weight: 500;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-sm);
}

.clear-search-btn {
  width: 100%;
  padding: var(--space-sm);
  background: var(--bg-secondary);
  border: none;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  cursor: pointer;
  margin-bottom: var(--space-sm);
}

.clear-search-btn:hover {
  background: var(--border-light);
}

/* =============================================================================
   KEYBOARD SHORTCUTS HINT
   ============================================================================= */

.keyboard-hint {
  display: flex;
  gap: var(--space-lg);
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-card-alt);
  border-radius: var(--radius-md);
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}

.keyboard-hint kbd {
  display: inline-block;
  padding: 2px 6px;
  background: var(--bg-card);
  border: 1px solid var(--border-medium);
  border-radius: 4px;
  font-family: monospace;
  font-size: 11px;
}

/* =============================================================================
   Responsive
   ============================================================================= */

@media (max-width: 768px) {
  .chat-sidebar {
    display: none;
  }
  
  /* Hero section mobile */
  .hero {
    padding: var(--space-xl) var(--space-md);
  }
  
  .hero__title {
    font-size: var(--font-size-xl);
    padding: 0 var(--space-sm);
  }
  
  .hero__subtitle {
    font-size: var(--font-size-base);
    padding: 0 var(--space-sm);
  }
  
  .hero__subtitle br {
    display: none;
  }
  
  .hero__actions {
    flex-direction: column;
    align-items: stretch;
    padding: 0 var(--space-md);
    gap: var(--space-sm);
  }
  
  .hero__actions .btn {
    width: 100%;
    justify-content: center;
  }
  
  .hero__note {
    font-size: 11px;
    padding: 0 var(--space-sm);
  }
  
  .hero__badge {
    font-size: 12px;
  }
  
  .value-grid {
    grid-template-columns: 1fr;
  }
  
  /* Navigation mobile */
  .nav {
    padding: var(--space-sm) var(--space-md);
  }
  
  .nav__inner {
    padding: 0;
  }
  
  .nav__brand {
    font-size: var(--font-size-lg);
  }
  
  .nav__links {
    gap: var(--space-md);
  }
  
  /* Footer mobile */
  .footer {
    padding: var(--space-lg) var(--space-md);
  }
  
  .footer__inner {
    flex-direction: column;
    text-align: center;
    gap: var(--space-md);
  }
  
  .footer__links {
    flex-wrap: wrap;
    justify-content: center;
  }
  
  /* Container mobile */
  .container {
    padding: 0 var(--space-md);
  }
  
  /* Section padding mobile */
  .features-section,
  .value-section,
  .about-section,
  .truth-section,
  .cta-section {
    padding: var(--space-xl) 0;
  }
  
  .section-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-lg);
  }
  
  .value-section__title {
    font-size: var(--font-size-xl);
  }

  /* Mobile Chat Improvements */
  .chat-main {
    padding: var(--space-sm);
  }
  
  .chat-input__form {
    flex-wrap: wrap;
  }
  
  .chat-input__textarea {
    min-width: 100%;
    margin-bottom: var(--space-sm);
  }
  
  .chat-selects {
    display: flex;
    gap: var(--space-sm);
    width: 100%;
  }
  
  .chat-selects select {
    flex: 1;
  }
  
  #quick-actions {
    display: none;
  }
  
  #suggested-questions {
    padding: var(--space-sm);
  }
  
  .suggested-btn {
    font-size: var(--font-size-xs);
    padding: var(--space-xs) var(--space-sm);
  }
  
  .message__bubble {
    max-width: 95%;
  }
  
  .claim {
    padding: var(--space-sm);
  }
  
  .claim__header {
    flex-wrap: wrap;
  }
  
  .message__analysis-toggle {
    flex-wrap: wrap;
    gap: var(--space-xs);
  }
  
  /* Features grid mobile */
  .features-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
  
  .feature-card {
    padding: var(--space-lg);
  }
  
  .feature-card__icon {
    font-size: 32px;
  }
  
  .feature-card__title {
    font-size: var(--font-size-md);
  }
  
  /* Model cards mobile */
  .models-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }
  
  .model-card {
    padding: var(--space-md);
  }
  
  .model-card__icon {
    font-size: 1.5rem;
  }
  
  .model-card__name {
    font-size: var(--font-size-sm);
  }
  
  /* Profile stats mobile */
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .profile-actions {
    flex-direction: column;
  }
  
  .profile-actions button {
    width: 100%;
  }
}

/* Tablet */
@media (min-width: 769px) and (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .chat-sidebar {
    width: 200px;
  }
}

/* Large screens */
@media (min-width: 1200px) {
  .chat-sidebar {
    width: 280px;
  }
}

/* =============================================================================
   USAGE DISPLAY & SUBSCRIPTION
   ============================================================================= */

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

.usage-bar {
  width: 80px;
  height: 6px;
  background: var(--bg-secondary);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.usage-bar__fill {
  height: 100%;
  border-radius: var(--radius-full);
  transition: width 0.3s ease;
}

.usage--good .usage-bar__fill {
  background: var(--verified-color);
}

.usage--medium .usage-bar__fill {
  background: var(--inferred-color);
}

.usage--warning .usage-bar__fill {
  background: #d32f2f;
}

.usage-text {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  white-space: nowrap;
}

.upgrade-prompt {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  background: linear-gradient(90deg, var(--accent-light), var(--bg-card));
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  margin-left: var(--space-md);
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

.upgrade-link {
  color: var(--accent-primary);
  font-weight: 500;
  text-decoration: none;
}

.upgrade-link:hover {
  text-decoration: underline;
}

.upgrade-dismiss {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 2px 6px;
  font-size: 12px;
}

.upgrade-dismiss:hover {
  color: var(--text-primary);
}

/* Plan badges */
.plan-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.plan-badge--free {
  background: var(--bg-secondary);
  color: var(--text-muted);
}

.plan-badge--pro {
  background: var(--accent-light);
  color: var(--accent-primary);
}

.plan-badge--premium {
  background: linear-gradient(135deg, #ffd700, #ffb700);
  color: #5a4a00;
}

/* Disabled provider option */
select option:disabled {
  color: var(--text-muted);
  font-style: italic;
}

/* ==================== MODELS GRID (Homepage) ==================== */

.models-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-lg);
  max-width: 900px;
  margin: 0 auto;
}

.model-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
  transition: all 0.2s;
}

.model-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.model-card--active {
  border-color: var(--accent-primary);
}

.model-card--coming {
  opacity: 0.7;
  border-style: dashed;
}

.model-card__icon {
  font-size: 2rem;
  margin-bottom: var(--space-sm);
}

.model-card__name {
  font-size: var(--font-size-md);
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 var(--space-xs);
}

.model-card__desc {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  margin: 0 0 var(--space-sm);
}

.model-card__status {
  display: inline-block;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 10px;
  font-weight: 600;
  background: var(--accent-light);
  color: var(--accent-primary);
}

.model-card__status--coming {
  background: var(--bg-secondary);
  color: var(--text-muted);
}

/* Feature badge for coming soon */
.feature-card__badge {
  display: inline-block;
  margin-top: var(--space-sm);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 600;
  background: var(--accent-light);
  color: var(--accent-primary);
}

/* ==================== PROFILE PAGE ENHANCEMENTS ==================== */

.roadmap-section {
  margin-top: var(--space-xl);
}

.roadmap-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--border-light);
}

.roadmap-item:last-child {
  border-bottom: none;
}

.roadmap-item__icon {
  font-size: 1.5rem;
  width: 40px;
  text-align: center;
}

.roadmap-item__content {
  flex: 1;
}

.roadmap-item__title {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.roadmap-item__desc {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.roadmap-item__badge {
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 600;
  background: var(--bg-secondary);
  color: var(--text-muted);
}

.roadmap-item__badge--soon {
  background: var(--accent-light);
  color: var(--accent-primary);
}

/* =============================================================================
   Skeleton Loading
   ============================================================================= */

.skeleton-item {
  height: 36px;
  background: linear-gradient(90deg, var(--bg-secondary) 25%, var(--bg-tertiary) 50%, var(--bg-secondary) 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-xs);
}

@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.history-empty {
  text-align: center;
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  padding: var(--space-lg);
}

/* =============================================================================
   Offline Indicator
   ============================================================================= */

.offline-indicator {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: #dc3545;
  color: white;
  padding: var(--space-sm) var(--space-md);
  text-align: center;
  font-weight: 600;
  font-size: var(--font-size-sm);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  animation: slideDown 0.3s ease;
}

@keyframes slideDown {
  from { transform: translateY(-100%); }
  to { transform: translateY(0); }
}

/* =============================================================================
   Message Timestamps
   ============================================================================= */

.message__timestamp {
  font-size: 10px;
  color: rgba(255, 255, 255, 0.5);
  margin-left: var(--space-sm);
  white-space: nowrap;
}

.message--assistant .message__timestamp {
  color: var(--text-muted);
}

/* =============================================================================
   Message Selection
   ============================================================================= */

.message--selected {
  outline: 2px solid var(--accent-primary);
  outline-offset: 4px;
  border-radius: var(--radius-md);
}

.message--selected .message__bubble {
  opacity: 1;
}

/* =============================================================================
   Mobile Hamburger Menu
   ============================================================================= */

.nav__hamburger {
  display: none;
  width: 40px;
  height: 40px;
  border: none;
  background: transparent;
  cursor: pointer;
  padding: var(--space-sm);
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 4px;
}

.nav__hamburger-line {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: all 0.3s ease;
}

.nav__hamburger.active .nav__hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(4px, 4px);
}

.nav__hamburger.active .nav__hamburger-line:nth-child(2) {
  opacity: 0;
}

.nav__hamburger.active .nav__hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(4px, -4px);
}

@media (max-width: 768px) {
  .nav__hamburger {
    display: flex;
  }
  
  .nav__links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    flex-direction: column;
    padding: var(--space-md);
    gap: var(--space-sm);
    border-bottom: 1px solid var(--border-light);
    display: none;
    box-shadow: var(--shadow-lg);
    z-index: 99;
  }
  
  .nav__links.active {
    display: flex;
  }
  
  .nav__link {
    padding: var(--space-sm);
    text-align: center;
  }
  
  .nav__inner {
    position: relative;
  }
}

/* =============================================================================
   MOBILE CHAT INTERFACE - Comprehensive Fixes
   ============================================================================= */

@media (max-width: 480px) {
  /* Chat Page Layout */
  .chat-page {
    height: 100vh;
    height: 100dvh; /* Dynamic viewport height for mobile browsers */
  }
  
  /* Chat Header - Compact for mobile */
  .chat-header {
    padding: var(--space-sm) var(--space-md);
    flex-wrap: wrap;
    gap: var(--space-sm);
  }
  
  .chat-header__left {
    flex: 1;
    min-width: 0;
    gap: var(--space-sm);
  }
  
  .chat-header__brand {
    font-size: var(--font-size-md);
  }
  
  .chat-header__controls {
    display: none; /* Hide model selector on very small screens */
  }
  
  .chat-header__right {
    gap: var(--space-xs);
  }
  
  .chat-header__right .btn--ghost {
    padding: var(--space-xs);
    font-size: var(--font-size-sm);
  }
  
  .chat-header__user {
    display: none; /* Hide username on mobile */
  }
  
  #logout {
    font-size: 12px;
    padding: 4px 8px;
  }
  
  /* Hide upgrade button on mobile */
  #upgrade-btn {
    display: none !important;
  }
  
  /* Usage display compact */
  .usage-display {
    font-size: 10px;
  }
  
  /* Sidebar toggle repositioned */
  .sidebar-toggle {
    left: 8px;
    top: 60px;
    padding: 6px 10px;
    font-size: 12px;
  }
  
  .sidebar-toggle__label {
    display: none;
  }
  
  /* Chat Main Area */
  .chat-main {
    padding: 0;
  }
  
  /* Chat Content */
  .chat-content {
    padding: var(--space-sm);
  }
  
  /* Messages */
  .chat-messages {
    padding: var(--space-sm);
    padding-bottom: 160px; /* Space for input area */
  }
  
  .chat-messages__inner {
    padding: 0;
  }
  
  /* Message bubbles */
  .message {
    margin-bottom: var(--space-sm);
  }
  
  .message__bubble {
    max-width: 100%;
    padding: var(--space-sm);
  }
  
  .message--user .message__bubble {
    padding: var(--space-sm) var(--space-md);
  }
  
  .message__text {
    font-size: var(--font-size-sm);
  }
  
  .message__timestamp {
    font-size: 9px;
  }
  
  /* Analysis toggle row */
  .message__analysis-toggle {
    flex-wrap: wrap;
    gap: 4px;
    padding: var(--space-xs) 0;
  }
  
  .analysis-toggle-btn {
    font-size: 11px;
    padding: 4px 8px;
  }
  
  .trust-summary {
    margin-left: 0;
    font-size: 10px;
    gap: 4px;
  }
  
  .trust-summary__bar {
    width: 30px;
  }
  
  .share-btn {
    padding: 4px 6px;
    font-size: 10px;
  }
  
  /* Analysis panel */
  .message__analysis {
    padding: var(--space-sm);
  }
  
  .claim {
    padding: var(--space-sm);
    margin-bottom: var(--space-sm);
  }
  
  .claim__header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-xs);
  }
  
  .claim__type {
    font-size: 10px;
    padding: 2px 6px;
  }
  
  .claim__text {
    font-size: var(--font-size-sm);
  }
  
  .claim__meta {
    font-size: 11px;
  }
  
  .claim__why-btn {
    font-size: 10px;
    padding: 2px 6px;
  }
  
  /* Empty State */
  .empty-state {
    padding: var(--space-lg) var(--space-md);
  }
  
  .empty-state__icon {
    font-size: 2.5rem;
  }
  
  .empty-state__title {
    font-size: var(--font-size-lg);
  }
  
  .empty-state__desc {
    font-size: var(--font-size-sm);
  }
  
  /* Keyboard hints - hide on mobile */
  .keyboard-hint {
    display: none;
  }
  
  /* Suggested questions */
  #suggested-questions {
    flex-wrap: wrap;
    gap: var(--space-xs);
    padding: var(--space-xs);
  }
  
  .suggested-btn {
    font-size: 11px;
    padding: 6px 10px;
    flex: 1 1 45%;
  }
  
  /* Chat Input Area - Fixed at bottom */
  .chat-input-area {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: var(--bg-primary);
    border-top: 1px solid var(--border-light);
    padding: var(--space-sm);
    padding-bottom: env(safe-area-inset-bottom, var(--space-sm));
  }
  
  .chat-input-area__inner {
    max-width: 100%;
    padding: 0;
  }
  
  .chat-explainer {
    display: none; /* Hide explainer on mobile */
  }
  
  .chat-input-wrapper {
    padding: var(--space-xs);
    gap: var(--space-xs);
  }
  
  /* Mode toggle buttons - smaller on mobile */
  .code-toggle {
    padding: 6px 8px;
    font-size: 11px;
  }
  
  .code-toggle__label {
    display: none; /* Hide label, show only icon */
  }
  
  .code-toggle__icon {
    font-size: 14px;
  }
  
  /* Input field */
  .chat-input {
    font-size: 16px; /* Prevent iOS zoom on focus */
    padding: var(--space-sm);
  }
  
  .fact-check-input {
    font-size: 16px;
    min-height: 50px;
  }
  
  /* Send button */
  .chat-send-btn {
    padding: var(--space-sm) var(--space-md);
    font-size: var(--font-size-sm);
  }
  
  /* Footer legend */
  .chat-footer {
    display: none; /* Hide footer on mobile */
  }
  
  /* Offline indicator */
  .offline-indicator {
    font-size: 12px;
    padding: var(--space-xs) var(--space-sm);
  }
  
  /* HIDE floating widgets on mobile - they cause overlap issues */
  .feedback-widget {
    display: none !important;
  }
  
  .theme-toggle {
    display: none !important;
  }
  
  /* Hide sidebar and sidebar toggle on mobile */
  .sidebar-toggle {
    display: none !important;
  }
  
  .chat-sidebar {
    display: none !important;
  }
  
  /* Header adjustments for mobile */
  .header-icon-btn {
    width: 32px;
    height: 32px;
    font-size: 16px;
  }
  
  .user-avatar {
    width: 32px;
    height: 32px;
    font-size: 11px;
  }
  
  .model-select {
    padding: 4px 8px;
    font-size: 12px;
    padding-right: 24px;
  }
  
  .header-badge {
    font-size: 10px;
    padding: 1px 6px;
  }
  
  /* Empty state adjustments */
  .empty-state__greeting {
    font-size: 24px;
  }
  
  .empty-state__title {
    font-size: 22px;
  }
  
  /* Chat input on mobile */
  .chat-input-area {
    padding: var(--space-sm);
  }
  
  .chat-input-wrapper {
    padding: 6px 6px 6px 12px;
  }
  
  .chat-input {
    font-size: 16px; /* Prevent iOS zoom */
  }
}

/* Medium mobile (481px - 768px) */
@media (min-width: 481px) and (max-width: 768px) {
  .chat-header {
    padding: var(--space-sm) var(--space-lg);
  }
  
  .chat-header__controls {
    gap: var(--space-sm);
  }
  
  .chat-header__control label {
    display: none;
  }
  
  .chat-input-area {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: var(--bg-primary);
    border-top: 1px solid var(--border-light);
  }
  
  .chat-messages {
    padding-bottom: 140px;
  }
  
  .chat-explainer {
    font-size: 11px;
  }
  
  .keyboard-hint {
    display: none;
  }
}

/* Touch-friendly improvements */
@media (hover: none) and (pointer: coarse) {
  /* Larger touch targets */
  .btn, button {
    min-height: 44px;
    min-width: 44px;
  }
  
  .sidebar-action-btn {
    width: 36px;
    height: 36px;
  }
  
  .chat-history-item {
    padding: var(--space-md);
  }
  
  .chat-history-item__delete {
    width: 28px;
    height: 28px;
  }
  
  .suggested-btn {
    min-height: 40px;
  }
  
  /* Always show delete buttons on touch devices */
  .message__delete,
  .chat-history-item__delete {
    display: flex;
    opacity: 0.5;
  }
  
  .message__delete-btn {
    opacity: 0.5;
  }
}

/* Landscape mobile */
@media (max-height: 500px) and (orientation: landscape) {
  .chat-header {
    padding: var(--space-xs) var(--space-md);
  }
  
  .chat-messages {
    padding-bottom: 100px;
  }
  
  .chat-input-area {
    padding: var(--space-xs);
  }
  
  .empty-state {
    padding: var(--space-md);
  }
  
  .empty-state__icon {
    font-size: 1.5rem;
  }
}

/* =============================================================================
   AUTH & PROFILE PAGE MOBILE
   ============================================================================= */

@media (max-width: 480px) {
  /* Auth page mobile */
  .auth-container {
    padding: var(--space-md);
    padding-top: 80px;
  }
  
  .auth-card {
    padding: var(--space-lg);
    border-radius: var(--radius-md);
  }
  
  .auth-card__title {
    font-size: var(--font-size-lg);
  }
  
  .auth-tabs {
    gap: var(--space-xs);
  }
  
  .auth-tab {
    padding: var(--space-sm);
    font-size: 13px;
  }
  
  .form-input {
    font-size: 16px; /* Prevent iOS zoom */
    padding: var(--space-md);
  }
  
  /* Profile page mobile */
  .profile-container {
    padding: var(--space-md);
    padding-top: var(--space-lg);
  }
  
  .profile__title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-lg);
  }
  
  .profile-card {
    padding: var(--space-md);
    margin-bottom: var(--space-md);
  }
  
  .profile-card__header {
    flex-direction: column;
    text-align: center;
    gap: var(--space-md);
  }
  
  .profile-avatar {
    margin: 0 auto;
  }
  
  .profile-info {
    text-align: center;
  }
  
  .stats-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xs);
  }
  
  .stat-item {
    padding: var(--space-sm);
  }
  
  .stat-item__value {
    font-size: var(--font-size-lg);
  }
  
  .stat-item__label {
    font-size: 10px;
  }
  
  .setting-item {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-sm);
  }
  
  .setting-item__info {
    text-align: left;
  }
  
  .form-select {
    width: 100%;
  }
  
  .history-actions {
    flex-direction: column;
    gap: var(--space-sm);
  }
  
  .history-actions button {
    width: 100%;
  }
  
  /* Roadmap mobile */
  .roadmap-item {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-xs);
  }
  
  .roadmap-item__badge {
    margin-left: 0;
  }
  
  /* How it works mobile */
  .steps-list {
    gap: var(--space-md);
  }
  
  .step {
    flex-direction: column;
    text-align: center;
    gap: var(--space-sm);
  }
  
  .step__number {
    margin: 0 auto;
  }
  
  .step__content {
    text-align: center;
  }
  
  /* Callout mobile */
  .callout {
    padding: var(--space-md);
    font-size: var(--font-size-sm);
  }
  
  /* About page mobile */
  .about-content {
    padding: var(--space-md);
  }
  
  .about-content h1 {
    font-size: var(--font-size-xl);
  }
  
  .about-content h2 {
    font-size: var(--font-size-lg);
  }
  
  .about-content blockquote {
    padding: var(--space-md);
    font-size: var(--font-size-base);
  }
}

/* =============================================================================
   FEEDBACK WIDGET
   ============================================================================= */

.feedback-widget {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 1000;
}

.feedback-toggle {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--accent-primary);
  border: none;
  cursor: pointer;
  font-size: 24px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  transition: transform 0.2s, box-shadow 0.2s;
}

.feedback-toggle:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 16px rgba(0,0,0,0.25);
}

.feedback-form {
  position: absolute;
  bottom: 60px;
  right: 0;
  width: 320px;
  background: var(--bg-card);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
  overflow: hidden;
}

.feedback-form__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-light);
  font-weight: 600;
}

.feedback-close {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 16px;
  color: var(--text-secondary);
  padding: 4px;
}

.feedback-close:hover {
  color: var(--text-primary);
}

.feedback-form textarea {
  width: 100%;
  min-height: 100px;
  padding: var(--space-md);
  border: none;
  resize: vertical;
  font-family: inherit;
  font-size: var(--font-size-sm);
  outline: none;
}

.feedback-form textarea:focus {
  background: var(--bg-input);
}

.feedback-form__footer {
  display: flex;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-light);
}

.feedback-form__footer input {
  flex: 1;
  padding: var(--space-xs) var(--space-sm);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
}

.btn--sm {
  padding: var(--space-xs) var(--space-md);
  font-size: var(--font-size-sm);
}

/* =============================================================================
   THEME TOGGLE - In Header (works on all screen sizes)
   ============================================================================= */

.theme-toggle-header {
  font-size: 18px !important;
  padding: var(--space-xs) var(--space-sm) !important;
}

/* =============================================================================
   SAFE AREA INSETS (Notched iPhones / Modern Mobile)
   ============================================================================= */

@supports (padding: env(safe-area-inset-top)) {
  body {
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
  }
  
  .chat-input-area {
    padding-bottom: calc(var(--space-sm) + env(safe-area-inset-bottom));
  }
}