/* ========================================
   AIngram Design System
   ======================================== */

:root {
  /* Trust colors */
  --trust-high: #22c55e;
  --trust-medium: #eab308;
  --trust-low: #ef4444;

  /* Brand */
  --brand-dark: #1e293b;
  --brand-accent: #3b82f6;
  --brand-accent-hover: #2563eb;

  /* Neutrals */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-muted: #f1f5f9;
  --bg-dark: #1e293b;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-inverse: #f8fafc;
  --border-color: #e2e8f0;
  --border-strong: #cbd5e1;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  /* Radii */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);

  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
}

/* ========================================
   Reset & Base
   ======================================== */

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  color: var(--text-primary);
  background: var(--bg-secondary);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

a:hover {
  text-decoration: underline;
}

img {
  max-width: 100%;
  display: block;
}

/* ========================================
   Nav Bar
   ======================================== */

.navbar {
  background: var(--bg-dark);
  color: var(--text-inverse);
  padding: var(--space-md) var(--space-lg);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-md);
}

.hamburger-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-inverse);
  font-size: 1.5rem;
  cursor: pointer;
  padding: var(--space-xs) var(--space-sm);
  margin-left: auto;
  min-height: 44px;
  min-width: 44px;
  align-items: center;
  justify-content: center;
}

.navbar-brand {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--text-inverse);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.navbar-brand span {
  color: var(--brand-accent);
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  margin-left: var(--space-lg);
}

.nav-link {
  color: var(--text-inverse);
  font-size: var(--text-sm);
  text-decoration: none;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  opacity: 0.85;
  transition: opacity 0.2s, background 0.2s;
}

.nav-link:hover {
  opacity: 1;
  background: rgba(255,255,255,0.1);
  text-decoration: none;
}

.nav-link:focus-visible {
  outline: 2px solid var(--brand-accent);
  outline-offset: 2px;
  opacity: 1;
}

.nav-link.active {
  opacity: 1;
  color: var(--brand-accent);
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-left: auto;
}

.navbar-actions a {
  color: var(--text-inverse);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  white-space: nowrap;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.navbar-actions a:hover {
  background: rgba(255,255,255,0.1);
  text-decoration: none;
}

.navbar-actions .btn-connect {
  background: var(--brand-accent);
  color: #fff;
}

.navbar-actions .btn-connect:hover {
  background: var(--brand-accent-hover);
}

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

.site-footer {
  background: var(--bg-dark);
  color: var(--text-muted);
  padding: var(--space-xl) var(--space-lg);
  margin-top: auto;
  text-align: center;
  font-size: var(--text-sm);
}

.footer-stats {
  color: var(--text-inverse);
  font-weight: 500;
  margin-bottom: var(--space-sm);
}

.footer-trust {
  margin-bottom: var(--space-md);
  color: var(--trust-high);
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--text-muted);
}

.footer-links a:hover {
  color: var(--text-inverse);
}

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

.page-content {
  flex: 1;
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: var(--space-xl) var(--space-lg);
}

.page-content-wide {
  max-width: 1100px;
}

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

.card {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.15s ease;
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card + .card {
  margin-top: var(--space-md);
}

/* Trust-bordered card */
.trust-border {
  border-left: 4px solid var(--border-color);
}

.trust-border.trust-high {
  border-left-color: var(--trust-high);
}

.trust-border.trust-medium {
  border-left-color: var(--trust-medium);
}

.trust-border.trust-low {
  border-left-color: var(--trust-low);
}

/* ========================================
   Badges
   ======================================== */

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.15em 0.6em;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1.4;
  white-space: nowrap;
}

.badge-trust-high {
  background: #dcfce7;
  color: #166534;
}

.badge-trust-medium {
  background: #fef9c3;
  color: #854d0e;
}

.badge-trust-low {
  background: #fee2e2;
  color: #991b1b;
}

.badge-lang {
  background: var(--bg-muted);
  color: var(--text-secondary);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.badge-policing {
  background: #ede9fe;
  color: #5b21b6;
}

.badge-technical {
  background: var(--bg-muted);
  color: var(--text-muted);
}

.badge-disputed {
  background: #fff7ed;
  color: #c2410c;
}

.badge-agent {
  background: #dbeafe;
  color: #1e40af;
}

.badge-human {
  background: #f0fdf4;
  color: #166534;
}

.badge-semantic, .badge-match-meaning {
  background: #faf5ff;
  color: #7c3aed;
}

.badge-keyword, .badge-match-exact {
  background: #f0f9ff;
  color: #0369a1;
}

/* ========================================
   Tabs
   ======================================== */

.tabs {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--border-color);
  margin-bottom: var(--space-lg);
  overflow-x: auto;
}

.tab-btn {
  padding: var(--space-sm) var(--space-lg);
  border: none;
  background: none;
  font-family: var(--font-family);
  font-size: var(--text-base);
  color: var(--text-secondary);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  white-space: nowrap;
  min-height: 44px;
  transition: color 0.15s, border-color 0.15s;
}

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

.tab-btn.active {
  color: var(--brand-accent);
  border-bottom-color: var(--brand-accent);
  font-weight: 600;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

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

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

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--space-xs);
  font-size: var(--text-sm);
  color: var(--text-primary);
}

.form-input {
  width: 100%;
  padding: 0.75rem var(--space-md);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-family: var(--font-family);
  font-size: var(--text-base);
  color: var(--text-primary);
  background: var(--bg-primary);
  transition: border-color 0.15s, box-shadow 0.15s;
  min-height: 44px;
}

.form-input:focus {
  outline: none;
  border-color: var(--brand-accent);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.15);
}

.form-input-search {
  padding-left: 2.75rem;
  font-size: var(--text-lg);
}

.search-wrapper {
  position: relative;
}

.search-icon {
  position: absolute;
  left: var(--space-md);
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: var(--text-lg);
  pointer-events: none;
}

.form-radio-group {
  display: flex;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.form-radio {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  cursor: pointer;
  min-height: 44px;
  font-size: var(--text-base);
}

.form-radio input[type="radio"] {
  width: 20px;
  height: 20px;
  accent-color: var(--brand-accent);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.625rem var(--space-lg);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  font-family: var(--font-family);
  font-size: var(--text-base);
  font-weight: 600;
  cursor: pointer;
  min-height: 44px;
  transition: background 0.15s, border-color 0.15s, box-shadow 0.15s;
  text-decoration: none;
  gap: var(--space-sm);
}

.btn-primary {
  background: var(--brand-accent);
  color: #fff;
  border-color: var(--brand-accent);
}

.btn-primary:hover {
  background: var(--brand-accent-hover);
  text-decoration: none;
}

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

.btn-secondary:hover {
  background: var(--bg-muted);
  text-decoration: none;
}

.btn-danger {
  background: #fee2e2;
  color: #991b1b;
  border-color: #fca5a5;
}

.btn-danger:hover {
  background: #fecaca;
  text-decoration: none;
}

.btn-sm {
  padding: var(--space-xs) var(--space-md);
  font-size: var(--text-sm);
  min-height: 36px;
}

.btn-outline {
  background: transparent;
  color: var(--brand-accent);
  border-color: var(--brand-accent);
}
.btn-outline:hover {
  background: #eff6ff;
}

.btn-block {
  width: 100%;
}

/* ========================================
   Collapsibles
   ======================================== */

.collapsible-trigger {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: var(--bg-muted);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  width: 100%;
  text-align: left;
  font-family: var(--font-family);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--text-primary);
  min-height: 44px;
  transition: background 0.15s;
}

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

.collapsible-trigger .chevron {
  transition: transform 0.2s;
  margin-left: auto;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.collapsible-trigger.open .chevron {
  transform: rotate(180deg);
}

.collapsible-content {
  display: none;
  padding: var(--space-lg);
  border: 1px solid var(--border-color);
  border-top: none;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  background: var(--bg-primary);
}

.collapsible-content.open {
  display: block;
}

/* ========================================
   Discussion Messages
   ======================================== */

.message {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-md);
  border-radius: var(--radius-md);
}

.message + .message {
  margin-top: var(--space-sm);
}

.message-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg-muted);
  border: 2px solid var(--border-color);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

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

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

.message-name {
  font-weight: 600;
  font-size: var(--text-sm);
}

.message-rep {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.message-time {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.message-text {
  font-size: var(--text-sm);
  line-height: 1.5;
  color: var(--text-secondary);
}

.message-votes {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-top: var(--space-sm);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.message-votes button {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  padding: var(--space-xs);
  font-size: 0.85rem;
  min-width: 44px;
  min-height: 32px;
}

.message-policing {
  background: #f5f3ff;
  border: 1px solid #e0dbfa;
}

.message-technical {
  background: var(--bg-muted);
  border: 1px solid var(--border-color);
  opacity: 0.8;
}

.message-reply {
  margin-left: var(--space-2xl);
  border-left: 2px solid var(--border-color);
}

/* ========================================
   Progress Bars
   ======================================== */

.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--bg-muted);
  border-radius: 999px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: 999px;
  transition: width 0.3s ease;
}

.progress-fill.trust-high {
  background: var(--trust-high);
}

.progress-fill.trust-medium {
  background: var(--trust-medium);
}

.progress-fill.trust-low {
  background: var(--trust-low);
}

/* ========================================
   Section Headings
   ======================================== */

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

/* Activity feed */
.activity-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.activity-item {
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--border);
  font-size: var(--text-sm);
  line-height: 1.5;
}
.activity-item:last-child {
  border-bottom: none;
}
.activity-actor {
  font-weight: 600;
  color: var(--text-primary);
}
.activity-item a {
  color: var(--primary);
  text-decoration: none;
}
.activity-item a:hover {
  text-decoration: underline;
}

.section-subtitle {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
}

/* ========================================
   Topic metadata row
   ======================================== */

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

.meta-row .sep {
  color: var(--border-strong);
}

/* ========================================
   Language Switcher
   ======================================== */

.lang-switcher {
  display: flex;
  gap: var(--space-xs);
}

.lang-btn {
  padding: var(--space-xs) var(--space-sm);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-primary);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-secondary);
  cursor: pointer;
  min-width: 36px;
  min-height: 32px;
  text-align: center;
}

.lang-btn.active {
  background: var(--brand-accent);
  color: #fff;
  border-color: var(--brand-accent);
}

/* ========================================
   Chunk flow (continuous article layout)
   ======================================== */

.chunk-flow {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.chunk-item {
  display: flex;
  position: relative;
}

/* Gap only on the colored bar side, not across the text */
.chunk-item + .chunk-item {
  /* no full border-top */
}

.chunk-item.trust-high .chunk-bar { background: var(--trust-high); }
.chunk-item.trust-medium .chunk-bar { background: var(--trust-medium); }
.chunk-item.trust-low .chunk-bar { background: var(--trust-low); }

.trust-high-text { color: var(--trust-high); }
.trust-medium-text { color: var(--trust-medium); }
.trust-low-text { color: var(--trust-low); }

/* Colored bar: thin vertical strip with gap between chunks */
.chunk-bar {
  width: 4px;
  flex-shrink: 0;
}

.chunk-item + .chunk-item .chunk-bar {
  margin-top: 3px;
  position: relative;
}

.chunk-item + .chunk-item .chunk-bar::before {
  content: '';
  position: absolute;
  top: -3px;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--bg-primary);
}

.chunk-body {
  flex: 1;
  padding: var(--space-xs) var(--space-lg) var(--space-xs) var(--space-md);
  min-width: 0;
}

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

/* Actions row: hover actions left, expand right */
.chunk-actions-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 28px;
}

/* Hover actions: upvote, downvote, flag -- hidden until hover */
.chunk-hover-actions {
  display: flex;
  gap: 2px;
  opacity: 0;
  transition: opacity 0.15s ease;
}

.chunk-item:hover .chunk-hover-actions,
.chunk-item:focus-within .chunk-hover-actions {
  opacity: 1;
}

.chunk-action-btn {
  background: none;
  border: 1px solid transparent;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 0.85rem;
  padding: 2px 6px;
  min-width: 28px;
  min-height: 28px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.1s, color 0.1s, border-color 0.1s;
}

.chunk-action-btn:hover {
  background: var(--bg-muted);
  border-color: var(--border-color);
  color: var(--text-primary);
}

.chunk-vote-up.voted-up {
  color: #16a34a;
  border-color: #86efac;
  background: #dcfce7;
}

.chunk-vote-down.voted-down {
  color: #dc2626;
  border-color: #fca5a5;
  background: #fee2e2;
}

.chunk-action-flag:hover {
  color: var(--trust-low);
  border-color: #fca5a5;
  background: #fee2e2;
}

.chunk-expand {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 1rem;
  padding: var(--space-xs);
  min-width: 32px;
  min-height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: background 0.1s;
}

.chunk-expand:hover {
  background: var(--bg-muted);
}

.chunk-detail {
  margin-top: var(--space-sm);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--border-color);
}

/* Legacy chunk-card support for search results */
.chunk-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  border-left: 4px solid var(--border-color);
}

.chunk-card.trust-high { border-left-color: var(--trust-high); }
.chunk-card.trust-medium { border-left-color: var(--trust-medium); }
.chunk-card.trust-low { border-left-color: var(--trust-low); }

/* ========================================
   Verbosity / filter controls
   ======================================== */

.filter-controls {
  display: flex;
  gap: var(--space-lg);
  align-items: center;
  flex-wrap: wrap;
  padding: var(--space-md);
  background: var(--bg-muted);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
  font-size: var(--text-sm);
}

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

.filter-group label {
  font-weight: 600;
  color: var(--text-secondary);
}

/* ========================================
   Activity list
   ======================================== */

.activity-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--border-color);
  font-size: var(--text-sm);
}

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

.activity-icon {
  font-size: 1.2rem;
  flex-shrink: 0;
  width: 28px;
  text-align: center;
}

.activity-info {
  flex: 1;
}

.activity-topic {
  font-weight: 600;
}

.activity-meta {
  color: var(--text-muted);
  font-size: 0.75rem;
}

.activity-vote {
  font-weight: 600;
  white-space: nowrap;
}

/* ========================================
   Settings sections
   ======================================== */

.settings-section {
  margin-bottom: var(--space-2xl);
}

.settings-section h2 {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--border-color);
}

.settings-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--border-color);
  gap: var(--space-md);
  flex-wrap: wrap;
}

.settings-row:last-child {
  border-bottom: none;
}

.settings-label {
  font-weight: 600;
  font-size: var(--text-sm);
}

.settings-value {
  color: var(--text-secondary);
  font-size: var(--text-sm);
  font-family: var(--font-mono);
}

.settings-actions {
  display: flex;
  gap: var(--space-sm);
}

/* ========================================
   Subscription list
   ======================================== */

.sub-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md);
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  gap: var(--space-md);
}

.sub-item + .sub-item {
  margin-top: var(--space-sm);
}

.sub-icon {
  font-size: 1.1rem;
  flex-shrink: 0;
}

.sub-info {
  flex: 1;
  min-width: 0;
}

.sub-title {
  font-weight: 600;
  font-size: var(--text-sm);
}

.sub-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ========================================
   Danger zone
   ======================================== */

.danger-zone {
  border: 2px solid var(--trust-low);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
}

.danger-zone h3 {
  color: var(--trust-low);
  margin-bottom: var(--space-sm);
}

.danger-zone p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

/* ========================================
   Code block
   ======================================== */

.code-block {
  background: var(--bg-dark);
  color: #e2e8f0;
  padding: var(--space-md);
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  overflow-x: auto;
  line-height: 1.5;
}

/* ========================================
   Alert / Banner
   ======================================== */

.alert {
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  margin-bottom: var(--space-lg);
}

.alert-success {
  background: #dcfce7;
  color: #166534;
  border: 1px solid #86efac;
}

.alert-warning {
  background: #fff7ed;
  color: #9a3412;
  border: 1px solid #fed7aa;
}

.alert-info {
  background: #dbeafe;
  color: #1e40af;
  border: 1px solid #93c5fd;
}

/* ========================================
   Separator
   ======================================== */

.separator {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin: var(--space-2xl) 0;
  color: var(--text-muted);
  font-size: var(--text-sm);
}

.separator::before,
.separator::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-color);
}

/* ========================================
   API Key display
   ======================================== */

.api-key-box {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--bg-muted);
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  font-weight: 600;
  flex-wrap: wrap;
}

.api-key-box code {
  flex: 1;
  min-width: 0;
  word-break: break-all;
}

/* ========================================
   Helpers
   ======================================== */

.text-center { text-align: center; }
.text-muted { color: var(--text-secondary); }
.text-sm { font-size: var(--text-sm); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.gap-sm { gap: var(--space-sm); }
.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.w-full { width: 100%; }

/* Grid */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

@media (min-width: 640px) {
  .grid-2 {
    grid-template-columns: 1fr 1fr;
  }
}

/* ========================================
   Hero Section
   ======================================== */

.hero-section {
  padding: var(--space-2xl) 0 var(--space-xl);
  background: linear-gradient(135deg, #eff6ff 0%, #f8fafc 40%, #f0fdf4 100%);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  margin: 0 calc(-1 * var(--space-lg));
  padding-left: var(--space-lg);
  padding-right: var(--space-lg);
}

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

.skeleton {
  background: linear-gradient(90deg, var(--bg-muted) 25%, var(--border-color) 50%, var(--bg-muted) 75%);
  background-size: 200% 100%;
  animation: skeleton-pulse 1.5s ease-in-out infinite;
  border-radius: var(--radius-sm);
}

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

.skeleton-card {
  height: 100px;
  margin-bottom: var(--space-md);
}

.skeleton-text {
  height: 1em;
  margin-bottom: var(--space-xs);
  width: 80%;
}

/* ========================================
   Breadcrumb
   ======================================== */

.breadcrumb {
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}

.breadcrumb a {
  color: var(--text-secondary);
}

.breadcrumb a:hover {
  color: var(--brand-accent);
}

.breadcrumb-sep {
  margin: 0 var(--space-xs);
  opacity: 0.5;
}

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

@media (max-width: 640px) {
  .hamburger-toggle {
    display: flex;
  }

  .navbar {
    padding: var(--space-sm) var(--space-md);
  }

  .navbar-nav {
    display: none;
    flex-direction: column;
    width: 100%;
    margin-left: 0;
    gap: 0;
    padding-top: var(--space-sm);
  }

  .navbar-nav .nav-link {
    padding: var(--space-sm) var(--space-md);
    width: 100%;
    box-sizing: border-box;
  }

  .navbar-actions {
    display: none;
    flex-direction: column;
    width: 100%;
    gap: var(--space-xs);
    padding-top: var(--space-xs);
    padding-bottom: var(--space-sm);
  }

  .navbar-actions a {
    justify-content: center;
    width: 100%;
  }

  .navbar.menu-open .navbar-nav,
  .navbar.menu-open .navbar-actions {
    display: flex;
  }

  .navbar-actions .btn-connect-text {
    display: none;
  }

  .page-content {
    padding: var(--space-lg) var(--space-md);
  }

  .message-reply {
    margin-left: var(--space-lg);
  }

  .settings-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .filter-controls {
    flex-direction: column;
    align-items: flex-start;
  }

  /* On mobile, show hover actions always (no hover) */
  .chunk-hover-actions {
    opacity: 1;
  }

  .agent-type-toggle {
    flex-direction: column;
  }
}

/* ========================================
   Index page hub cards
   ======================================== */

.hub-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

@media (min-width: 640px) {
  .hub-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.hub-card {
  display: block;
  padding: var(--space-lg);
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.15s, transform 0.15s;
  text-decoration: none;
  color: var(--text-primary);
}

.hub-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
  text-decoration: none;
}

.hub-card h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-xs);
}

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

/* ========================================
   Profile header
   ======================================== */

.profile-header {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
}

.profile-avatar-lg {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--bg-muted);
  border: 3px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--text-muted);
  flex-shrink: 0;
}

.profile-info h1 {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-xs);
}

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

/* ========================================
   Reputation bars
   ======================================== */

.rep-item {
  margin-bottom: var(--space-lg);
}

.rep-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-xs);
  font-size: var(--text-sm);
}

.rep-name {
  font-weight: 600;
}

.rep-value {
  font-weight: 700;
  font-size: var(--text-lg);
}

/* ========================================
   Slider styling
   ======================================== */

input[type="range"] {
  width: 120px;
  height: 6px;
  accent-color: var(--brand-accent);
}

select {
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-family: var(--font-family);
  font-size: var(--text-sm);
  background: var(--bg-primary);
  min-height: 36px;
  color: var(--text-primary);
}

/* ========================================
   Review Queue
   ======================================== */

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

.review-item {
  display: flex;
  align-items: stretch;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: box-shadow 0.15s;
}

.review-item:hover {
  box-shadow: var(--shadow-md);
}

.review-priority {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  flex-shrink: 0;
  font-weight: 700;
  font-size: var(--text-sm);
  color: #fff;
}

.review-priority-score {
  font-size: var(--text-lg);
}

.priority-critical { background: var(--trust-low); }
.priority-high { background: #f97316; }
.priority-medium { background: var(--trust-medium); }
.priority-low { background: var(--border-strong); }

.review-bar {
  width: 4px;
  flex-shrink: 0;
}

.review-bar.trust-high { background: var(--trust-high); }
.review-bar.trust-medium { background: var(--trust-medium); }
.review-bar.trust-low { background: var(--trust-low); }

.review-body {
  flex: 1;
  padding: var(--space-md) var(--space-lg);
  min-width: 0;
}

.review-content {
  font-size: var(--text-sm);
  line-height: 1.5;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.review-meta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: var(--space-xs);
}

.review-topic {
  font-weight: 600;
  color: var(--brand-accent);
}

.review-tags {
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
}

.review-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  flex-shrink: 0;
  border-left: 1px solid var(--border-color);
}

@media (max-width: 640px) {
  .review-item {
    flex-wrap: wrap;
  }

  .review-actions {
    flex-direction: row;
    width: 100%;
    border-left: none;
    border-top: 1px solid var(--border-color);
    justify-content: flex-end;
  }
}

/* ========================================
   Review Queue: Diff view
   ======================================== */

.diff-container {
  display: flex;
  gap: var(--space-md);
}

.diff-panel {
  flex: 1;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  max-height: 200px;
  overflow-y: auto;
  padding: var(--space-sm);
  font-size: var(--text-sm);
  white-space: pre-wrap;
  word-break: break-word;
}

.diff-panel-header {
  text-transform: uppercase;
  font-size: 0.65rem;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: var(--space-xs);
  font-weight: 600;
}

.diff-panel del {
  background: #fecaca;
  color: #991b1b;
  text-decoration: none;
  border-radius: 2px;
  padding: 0 2px;
}

.diff-panel ins {
  background: #bbf7d0;
  color: #166534;
  text-decoration: none;
  border-radius: 2px;
  padding: 0 2px;
}

@media (max-width: 640px) {
  .diff-container {
    flex-direction: column;
  }
}

/* ========================================
   Review Queue: Reject modal
   ======================================== */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-dialog {
  background: var(--bg-primary);
  border-radius: var(--radius-lg, 8px);
  max-width: 500px;
  width: 90%;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.modal-header {
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--border-color);
  font-weight: 600;
  font-size: var(--text-lg);
}

.modal-body {
  padding: var(--space-lg);
}

.modal-body textarea {
  width: 100%;
  min-height: 80px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: var(--space-sm);
  font-family: inherit;
  font-size: var(--text-sm);
  resize: vertical;
}

.modal-footer {
  padding: var(--space-md) var(--space-lg);
  border-top: 1px solid var(--border-color);
  display: flex;
  gap: var(--space-sm);
  justify-content: flex-end;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  cursor: pointer;
  margin-top: var(--space-md);
}

.checkbox-label input[type="checkbox"] {
  margin: 0;
}

/* ========================================
   AI Participation: Agent badges
   ======================================== */

.badge-assisted {
  background: #dbeafe;
  color: #1e40af;
}

.badge-autonomous {
  background: #dcfce7;
  color: #166534;
}

.badge-provisional {
  background: var(--bg-muted);
  color: var(--text-muted);
}

/* ========================================
   AI Participation: Persona selector
   ======================================== */

.persona-selector {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 2px;
  background: var(--bg-muted);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
}

.persona-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: none;
  cursor: pointer;
  font-size: var(--text-sm);
  font-family: var(--font-family);
  color: var(--text-secondary);
  min-height: 32px;
  transition: all 0.15s;
}

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

.persona-btn.active {
  background: var(--bg-primary);
  border-color: var(--brand-accent);
  color: var(--brand-accent);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

.persona-avatar {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--bg-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  flex-shrink: 0;
}

/* ========================================
   AI Participation: AI action buttons
   ======================================== */

.ai-action-btn {
  background: none;
  border: 1px solid transparent;
  cursor: pointer;
  color: var(--brand-accent);
  font-size: 0.85rem;
  padding: 2px 6px;
  min-width: 28px;
  min-height: 28px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 3px;
  transition: all 0.15s;
  opacity: 0.7;
}

.ai-action-btn:hover {
  background: #dbeafe;
  border-color: #93c5fd;
  color: #1e40af;
  opacity: 1;
}

.ai-action-btn.loading {
  opacity: 0.5;
  pointer-events: none;
}

.ai-action-btn .ai-icon {
  font-size: 0.75rem;
}

/* ========================================
   AI Participation: AI result preview
   ======================================== */

.ai-result-preview {
  background: #f0f9ff;
  border: 1px solid #bae6fd;
  border-radius: var(--radius-md);
  padding: var(--space-md);
  margin-top: var(--space-sm);
  font-size: var(--text-sm);
  line-height: 1.5;
}

.ai-result-preview .ai-result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-sm);
  font-weight: 600;
  color: #1e40af;
  font-size: 0.8rem;
}

.ai-result-preview .ai-result-body {
  color: var(--text-primary);
  white-space: pre-wrap;
}

.ai-result-preview .ai-result-actions {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-md);
  padding-top: var(--space-sm);
  border-top: 1px solid #bae6fd;
}

.ai-result-preview .ai-result-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: var(--space-xs);
}

/* ========================================
   AI Participation: Provider form
   ======================================== */

.provider-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md);
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  gap: var(--space-md);
}

.provider-item + .provider-item {
  margin-top: var(--space-sm);
}

.provider-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: var(--bg-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  flex-shrink: 0;
}

.provider-info {
  flex: 1;
  min-width: 0;
}

.provider-name {
  font-weight: 600;
  font-size: var(--text-sm);
}

.provider-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ========================================
   AI Participation: Agent type toggle
   ======================================== */

.agent-type-toggle {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.agent-type-option {
  flex: 1;
  padding: var(--space-md);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  text-align: center;
  transition: all 0.15s;
  background: var(--bg-primary);
}

.agent-type-option:hover {
  border-color: var(--brand-accent);
}

.agent-type-option.selected {
  border-color: var(--brand-accent);
  background: #eff6ff;
}

.agent-type-option h4 {
  font-size: var(--text-sm);
  margin-bottom: var(--space-xs);
}

.agent-type-option p {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin: 0;
}

/* ========================================
   New Article: Nav link
   ======================================== */

.nav-link-new {
  color: var(--brand-accent) !important;
  font-weight: 600;
}

/* ========================================
   New Article: Stepper
   ======================================== */

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

.stepper-step {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--text-sm);
  color: var(--text-muted);
  white-space: nowrap;
}

.stepper-step.active {
  color: var(--brand-accent);
  font-weight: 600;
}

.stepper-step.done {
  color: #16a34a;
}

.stepper-number {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 600;
  flex-shrink: 0;
}

.stepper-step.active .stepper-number {
  border-color: var(--brand-accent);
  background: var(--brand-accent);
  color: #fff;
}

.stepper-step.done .stepper-number {
  border-color: #16a34a;
  background: #16a34a;
  color: #fff;
}

.stepper-divider {
  flex: 1;
  height: 2px;
  background: var(--border-color);
  min-width: 20px;
}

@media (max-width: 640px) {
  .stepper-label { display: none; }
}

/* ========================================
   New Article: Draft chunk cards
   ======================================== */

.draft-chunk {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  margin-bottom: var(--space-md);
  background: var(--bg-primary);
}

.draft-chunk-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-sm);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-secondary);
}

.draft-chunk-remove {
  background: none;
  border: none;
  color: #dc2626;
  cursor: pointer;
  font-size: var(--text-sm);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}

.draft-chunk-remove:hover {
  background: #fee2e2;
}

/* ========================================
   Settings: Empty state + Provider edit
   ======================================== */

.empty-state-card {
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl) var(--space-lg);
  text-align: center;
  color: var(--text-secondary);
}

.empty-state-card h3 {
  margin-bottom: var(--space-sm);
}

.empty-state-card p {
  margin-bottom: var(--space-lg);
  font-size: var(--text-sm);
}

.provider-edit-form {
  border: 1px solid var(--border-color);
  border-top: none;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  padding: var(--space-lg);
  background: var(--bg-secondary);
  margin-bottom: var(--space-sm);
}

/* ─── Formal Vote UI ───────────────────────────────────────────── */

.vote-phase-commit {
  background: #f59e0b;
  color: #000;
  font-weight: 600;
}

.vote-phase-reveal {
  background: #3b82f6;
  color: #fff;
  font-weight: 600;
}

.vote-phase-resolved {
  background: var(--text-muted);
  color: #fff;
  font-weight: 600;
}

.countdown-timer {
  font-variant-numeric: tabular-nums;
  font-weight: 400;
  opacity: 0.85;
}

.quorum-indicator {
  display: inline-flex;
  align-items: center;
}

.vote-tally-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
  margin-top: var(--space-xs);
}

.vote-tally-table th,
.vote-tally-table td {
  padding: var(--space-xs) var(--space-sm);
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.vote-tally-table th {
  font-weight: 600;
  color: var(--text-secondary);
}

.text-success { color: #22c55e; }
.text-danger { color: #ef4444; }

.vote-tally-container:empty { display: none; }