@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

/* ==========================================================================
   DESIGN TOKENS & SYSTEM VARIABLES
   ========================================================================== */
:root {
  /* Color Palette - Neon Tech-Noir Space */
  --bg-primary: hsl(225, 22%, 7%);
  --bg-secondary: hsl(225, 20%, 11%);
  --bg-tertiary: hsl(225, 18%, 15%);
  
  --text-primary: hsl(0, 0%, 96%);
  --text-secondary: hsl(225, 12%, 72%);
  --text-muted: hsl(225, 10%, 48%);
  
  /* Accent Colors */
  --accent-purple: hsl(268, 100%, 74%);
  --accent-purple-glow: hsla(268, 100%, 74%, 0.15);
  --accent-cyan: hsl(188, 100%, 50%);
  --accent-cyan-glow: hsla(188, 100%, 50%, 0.15);
  --accent-rose: hsl(338, 100%, 64%);
  --accent-green: hsl(142, 70%, 48%);
  
  /* Gradients */
  --grad-primary: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
  --grad-hover: linear-gradient(135deg, hsl(268, 100%, 80%), hsl(188, 100%, 60%));
  --grad-dark: linear-gradient(180deg, var(--bg-secondary), var(--bg-primary));

  /* Glassmorphism Configuration */
  --glass-bg: rgba(14, 18, 28, 0.65);
  --glass-bg-hover: rgba(22, 28, 42, 0.75);
  --glass-border: rgba(255, 255, 255, 0.07);
  --glass-border-hover: rgba(255, 255, 255, 0.14);
  --glass-glow: 0 8px 32px 0 rgba(0, 0, 0, 0.5);
  --panel-blur: blur(16px);
  
  /* Layout Constants */
  --sidebar-width: 260px;
  --feed-width: 440px;
  --header-height: 70px;
  --border-radius-lg: 16px;
  --border-radius-md: 10px;
  --border-radius-sm: 6px;
  --transition-smooth: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  --transition-fast: all 0.15s ease;
}

/* ==========================================================================
   CORE RESET & TYPOGRAPHY
   ========================================================================== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  overflow: hidden;
  height: 100vh;
  width: 100vw;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, .brand-logo {
  font-family: 'Outfit', sans-serif;
  letter-spacing: -0.02em;
}

/* Custom Slim Scrollbars */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--bg-tertiary);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-purple);
}

/* ==========================================================================
   APP GRID LAYOUT
   ========================================================================== */
.app-container {
  display: grid;
  grid-template-columns: var(--sidebar-width) var(--feed-width) 1fr;
  height: 100vh;
  width: 100vw;
  position: relative;
  background-image: radial-gradient(circle at 10% 20%, rgba(98, 0, 234, 0.05) 0%, transparent 40%),
                    radial-gradient(circle at 90% 80%, rgba(0, 229, 255, 0.05) 0%, transparent 40%);
}

.pane {
  display: flex;
  flex-direction: column;
  height: 100vh;
  border-right: 1px solid var(--glass-border);
  position: relative;
  overflow: hidden;
}

.pane:last-child {
  border-right: none;
}

/* Header Areas */
.pane-header {
  height: var(--header-height);
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--glass-border);
  background: rgba(14, 18, 28, 0.4);
  backdrop-filter: blur(10px);
  z-index: 10;
  flex-shrink: 0;
}

/* ==========================================================================
   PANE 1: SIDEBAR (NAVIGATION & FEEDS)
   ========================================================================== */
.sidebar-pane {
  background: var(--bg-secondary);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  font-size: 24px;
  font-weight: 800;
  background: var(--grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand-logo svg {
  width: 24px;
  height: 24px;
  stroke: var(--accent-cyan);
}

.sidebar-scroll {
  flex-grow: 1;
  overflow-y: auto;
  padding: 20px 12px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Nav Menu Items */
.nav-section-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  padding-left: 12px;
  margin-bottom: 8px;
}

.nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border-radius: var(--border-radius-md);
  color: var(--text-secondary);
  text-decoration: none;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition-fast);
}

.nav-item:hover, .nav-item.active {
  color: var(--text-primary);
  background: var(--glass-bg-hover);
}

.nav-item.active {
  border: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: inset 0 0 12px rgba(255, 255, 255, 0.02);
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: 6px;
  width: 4px;
  height: 18px;
  border-radius: 2px;
  background: var(--grad-primary);
}

.nav-link-content {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-icon {
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
}

.nav-badge {
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 20px;
  background: var(--accent-purple-glow);
  color: var(--accent-purple);
  border: 1px solid rgba(186, 104, 200, 0.2);
}

.channel-tag {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

/* Feed Management Button */
.btn-add-feed {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 10px;
  border-radius: var(--border-radius-md);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-primary);
  border: 1px dashed var(--glass-border);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-smooth);
  margin-top: auto;
}

.btn-add-feed:hover {
  background: var(--glass-bg-hover);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

/* ==========================================================================
   PANE 2: STREAM (FEED CARDS)
   ========================================================================== */
.feed-pane {
  background: var(--bg-primary);
}

.search-bar-container {
  padding: 14px 20px;
  border-bottom: 1px solid var(--glass-border);
  background: rgba(14, 18, 28, 0.2);
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex-shrink: 0;
}

.search-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.search-input {
  width: 100%;
  padding: 10px 14px 10px 38px;
  border-radius: var(--border-radius-md);
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 13px;
  transition: var(--transition-fast);
}

.search-input:focus {
  outline: none;
  border-color: var(--accent-purple);
  box-shadow: 0 0 10px rgba(186, 104, 200, 0.15);
}

.search-icon {
  position: absolute;
  left: 14px;
  color: var(--text-muted);
  pointer-events: none;
}

/* Filter Tags Row */
.filter-tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 2px;
}

.filter-tab {
  padding: 5px 12px;
  border-radius: var(--border-radius-lg);
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--glass-border);
  cursor: pointer;
  white-space: nowrap;
  transition: var(--transition-fast);
}

.filter-tab:hover, .filter-tab.active {
  color: var(--text-primary);
  background: var(--bg-tertiary);
  border-color: var(--accent-purple);
}

.filter-tab.active {
  background: var(--accent-purple-glow);
  color: var(--accent-purple);
}

/* Feed Stream Scroll */
.feed-stream {
  flex-grow: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* --- FEED CARDS & AESTHETICS --- */
.feed-card {
  position: relative;
  background: var(--glass-bg);
  backdrop-filter: var(--panel-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-lg);
  padding: 16px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: var(--transition-smooth);
}

.feed-card:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
  transform: translateY(-2px);
  box-shadow: var(--glass-glow), 0 4px 20px rgba(0, 229, 255, 0.03);
}

.feed-card.active {
  border-color: var(--accent-purple);
  background: rgba(30, 20, 48, 0.45);
  box-shadow: 0 4px 24px rgba(186, 104, 200, 0.08);
}

.feed-card.unread::before {
  content: '';
  position: absolute;
  top: 18px;
  right: 18px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 8px var(--accent-cyan);
}

/* Card Metadata Header */
.card-header-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
}

.card-source {
  display: flex;
  align-items: center;
  gap: 6px;
}

.card-source-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.card-source-name {
  color: var(--text-secondary);
}

.card-date {
  font-weight: 400;
}

/* Card Content */
.card-title {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text-primary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-snippet {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 4px;
}

.card-tags {
  display: flex;
  gap: 6px;
}

.card-tag {
  font-size: 10px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.card-actions {
  display: flex;
  gap: 8px;
  opacity: 0;
  transform: translateX(5px);
  transition: var(--transition-fast);
}

.feed-card:hover .card-actions, .feed-card.active .card-actions {
  opacity: 1;
  transform: translateX(0);
}

.card-action-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.card-action-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.card-action-btn.active {
  color: var(--accent-rose);
}

/* Multi-select styling */
.card-select-checkbox {
  position: absolute;
  top: 16px;
  left: -28px;
  opacity: 0;
  transition: var(--transition-fast);
}

.feed-stream.multi-select-mode .feed-card {
  transform: translateX(28px);
}

.feed-stream.multi-select-mode .card-select-checkbox {
  opacity: 1;
  left: -20px;
}

/* Platform Specific: X / Twitter Card Design */
.feed-card.platform-twitter {
  border-color: rgba(29, 161, 242, 0.15);
}

.feed-card.platform-twitter .card-title {
  font-weight: 400;
  font-family: inherit;
  display: block;
}

.twitter-author-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.twitter-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 11px;
  color: white;
}

.twitter-name-container {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.twitter-author-name {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 3px;
}

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

.twitter-verified-badge {
  color: var(--accent-cyan);
  font-size: 11px;
}

.twitter-metrics {
  display: flex;
  gap: 16px;
  margin-top: 6px;
  font-size: 11px;
  color: var(--text-muted);
}

.twitter-metric {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Platform Specific: Reddit Card Design */
.feed-card.platform-reddit {
  border-color: rgba(255, 69, 0, 0.15);
}

.reddit-subreddit-badge {
  font-weight: 700;
  color: var(--accent-rose) !important;
}

.reddit-meta-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  color: var(--text-muted);
}

.reddit-upvotes {
  display: flex;
  align-items: center;
  gap: 4px;
  font-weight: 700;
  color: var(--text-secondary);
}

/* Platform Specific: Telegram Card Design */
.feed-card.platform-telegram {
  border-color: rgba(36, 161, 222, 0.15);
}

.telegram-author-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.telegram-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 11px;
  color: white;
}

.telegram-name-container {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.telegram-author-name {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-primary);
}

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

.telegram-metrics {
  display: flex;
  gap: 16px;
  margin-top: 6px;
  font-size: 11px;
  color: var(--text-muted);
}

/* Platform Specific: YouTube Card Design */
.feed-card.platform-youtube {
  border-color: rgba(255, 0, 0, 0.18);
}

.youtube-thumbnail-wrapper {
  position: relative;
  width: 100%;
  height: 150px;
  border-radius: var(--border-radius-md);
  background: linear-gradient(135deg, hsl(225, 20%, 16%), hsl(225, 20%, 6%));
  border: 1px solid var(--glass-border);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 4px 0;
}

.youtube-thumbnail-overlay {
  font-family: 'Outfit', sans-serif;
  font-size: 22px;
  font-weight: 800;
  background: var(--grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.youtube-play-icon {
  position: absolute;
  font-size: 26px;
  color: white;
  opacity: 0.75;
  filter: drop-shadow(0 2px 10px rgba(0,0,0,0.5));
  transition: var(--transition-smooth);
}

.youtube-thumbnail-wrapper:hover .youtube-play-icon {
  opacity: 1;
  transform: scale(1.15);
  color: var(--accent-rose);
}

.youtube-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0, 0, 0, 0.85);
  color: var(--text-primary);
  font-size: 10px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid rgba(255,255,255,0.06);
}

/* Platform Specific: Instagram Card Design */
.feed-card.platform-instagram {
  border-color: rgba(225, 48, 108, 0.18);
}

.instagram-image-wrapper {
  width: 100%;
  height: 160px;
  border-radius: var(--border-radius-md);
  overflow: hidden;
  border: 1px solid var(--glass-border);
  position: relative;
  margin: 4px 0;
}

.instagram-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.feed-card.platform-instagram:hover .instagram-image {
  transform: scale(1.04);
}

.instagram-likes {
  font-size: 11px;
  font-weight: 700;
  color: var(--accent-rose);
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Multi-select Floating Bar */
.digest-bar-container {
  position: absolute;
  bottom: 24px;
  left: 20px;
  right: 20px;
  height: 60px;
  background: rgba(14, 18, 28, 0.85);
  backdrop-filter: blur(20px);
  border: 1px solid var(--accent-cyan);
  border-radius: var(--border-radius-lg);
  box-shadow: 0 10px 40px rgba(0, 229, 255, 0.15);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  transform: translateY(120px);
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.digest-bar-container.visible {
  transform: translateY(0);
}

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

.digest-bar-actions {
  display: flex;
  gap: 10px;
}

.btn-digest-bar {
  padding: 8px 14px;
  border-radius: var(--border-radius-md);
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-digest-bar.cancel {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--glass-border);
}

.btn-digest-bar.cancel:hover {
  background: rgba(255, 255, 255, 0.05);
}

.btn-digest-bar.compile {
  background: var(--grad-primary);
  color: var(--bg-primary);
  border: none;
}

.btn-digest-bar.compile:hover {
  background: var(--grad-hover);
  box-shadow: 0 0 15px rgba(0, 229, 255, 0.4);
}

/* ==========================================================================
   PANE 3: CORE VIEW & AI HUB
   ========================================================================== */
.main-content-pane {
  background: var(--bg-primary);
  display: grid;
  grid-template-columns: 1fr 380px; /* Reader Panel and AI panel */
}

/* Reader Section */
.reader-panel {
  display: flex;
  flex-direction: column;
  height: 100vh;
  border-right: 1px solid var(--glass-border);
  overflow: hidden;
}

.reader-header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.reader-scroll {
  flex-grow: 1;
  overflow-y: auto;
  padding: 40px 48px;
}

.reader-body {
  max-width: 680px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Reading Typography System */
.reader-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--text-muted);
}

.reader-category {
  color: var(--accent-purple);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.reader-title {
  font-family: 'Outfit', sans-serif;
  font-size: 32px;
  font-weight: 800;
  line-height: 1.25;
  color: var(--text-primary);
}

.reader-author-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--glass-border);
  font-size: 13px;
  color: var(--text-secondary);
}

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

.reader-text {
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-secondary);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.reader-text p {
  margin-bottom: 4px;
}

.reader-text blockquote {
  border-left: 3px solid var(--accent-purple);
  padding: 12px 20px;
  margin: 12px 0;
  background: var(--bg-secondary);
  border-radius: 0 var(--border-radius-md) var(--border-radius-md) 0;
  font-style: italic;
  color: var(--text-primary);
}

.reader-text ul, .reader-text ol {
  padding-left: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* Highlight to Ask UI */
.ask-ai-popup {
  position: absolute;
  background: rgba(14, 18, 28, 0.95);
  backdrop-filter: blur(10px);
  border: 1px solid var(--accent-purple);
  border-radius: var(--border-radius-md);
  box-shadow: 0 4px 20px rgba(186, 104, 200, 0.25);
  padding: 8px 12px;
  z-index: 1000;
  display: none;
  align-items: center;
  gap: 8px;
}

.btn-ask-popup {
  background: var(--grad-primary);
  border: none;
  color: var(--bg-primary);
  font-size: 11px;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: 4px;
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-ask-popup:hover {
  background: var(--grad-hover);
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.4);
}

/* AI Panel (Rightmost Column) */
.ai-panel {
  display: flex;
  flex-direction: column;
  height: 100vh;
  background: var(--bg-secondary);
  overflow: hidden;
}

.ai-tab-header {
  height: var(--header-height);
  border-bottom: 1px solid var(--glass-border);
  display: flex;
  padding: 0 16px;
  align-items: flex-end;
  background: rgba(14, 18, 28, 0.2);
  flex-shrink: 0;
}

.ai-tab-btn {
  padding: 0 16px 14px 16px;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  background: transparent;
  border: none;
  position: relative;
  transition: var(--transition-fast);
}

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

.ai-tab-btn.active {
  color: var(--accent-purple);
}

.ai-tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 16px;
  right: 16px;
  height: 2px;
  background: var(--accent-purple);
  box-shadow: 0 0 8px var(--accent-purple);
}

.ai-panel-body {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
}

/* Chat view */
.ai-chat-scroll {
  flex-grow: 1;
  overflow-y: auto;
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.ai-chat-welcome {
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: center;
  text-align: center;
  padding: 40px 16px;
  color: var(--text-secondary);
}

.ai-welcome-icon {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--accent-purple-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  border: 1px solid rgba(186, 104, 200, 0.2);
  box-shadow: 0 0 20px rgba(186, 104, 200, 0.1);
}

.ai-chat-message {
  max-width: 85%;
  padding: 12px 14px;
  border-radius: var(--border-radius-lg);
  font-size: 13px;
  line-height: 1.5;
  word-break: break-word;
}

.ai-chat-message.assistant {
  align-self: flex-start;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  border-bottom-left-radius: 4px;
}

.ai-chat-message.user {
  align-self: flex-end;
  background: var(--accent-purple-glow);
  border: 1px solid rgba(186, 104, 200, 0.2);
  color: var(--text-primary);
  border-bottom-right-radius: 4px;
}

/* Prompt Suggestions */
.ai-suggestions-row {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 10px 16px 4px 16px;
  flex-shrink: 0;
  border-top: 1px solid var(--glass-border);
}

.ai-suggestion-chip {
  padding: 6px 12px;
  border-radius: var(--border-radius-lg);
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--glass-border);
  cursor: pointer;
  white-space: nowrap;
  transition: var(--transition-fast);
}

.ai-suggestion-chip:hover {
  color: var(--text-primary);
  border-color: var(--accent-cyan);
  background: var(--glass-bg-hover);
}

/* Input Row */
.ai-chat-input-row {
  padding: 14px 16px 20px 16px;
  display: flex;
  gap: 8px;
  align-items: center;
  flex-shrink: 0;
}

.ai-input-wrapper {
  position: relative;
  flex-grow: 1;
  display: flex;
  align-items: center;
}

.ai-input {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--border-radius-md);
  background: var(--bg-tertiary);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 13px;
  transition: var(--transition-smooth);
}

.ai-input:focus {
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.15);
}

.btn-ai-send {
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius-md);
  background: var(--grad-primary);
  border: none;
  color: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-smooth);
  flex-shrink: 0;
}

.btn-ai-send:hover {
  background: var(--grad-hover);
  box-shadow: 0 0 15px rgba(0, 229, 255, 0.35);
  transform: scale(1.02);
}

/* Digest tab */
.ai-digests-scroll {
  flex-grow: 1;
  overflow-y: auto;
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.digest-welcome {
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: center;
  text-align: center;
  padding: 30px 16px;
  color: var(--text-secondary);
}

.digest-welcome h3 {
  font-family: 'Outfit', sans-serif;
  color: var(--text-primary);
}

.digest-welcome-icon {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--accent-cyan-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  border: 1px solid rgba(0, 229, 255, 0.2);
  box-shadow: 0 0 20px rgba(0, 229, 255, 0.1);
}

.digest-history-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.digest-brief-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-md);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.digest-brief-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
  font-weight: 700;
  color: var(--accent-cyan);
  text-transform: uppercase;
}

.digest-brief-date {
  color: var(--text-muted);
  font-weight: 400;
}

.digest-brief-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.digest-brief-text {
  font-size: 12px;
  line-height: 1.5;
  color: var(--text-secondary);
  border-left: 2px solid var(--accent-cyan);
  padding-left: 10px;
  margin-top: 4px;
}

/* Pulsing loader for AI thinking state */
.ai-typing-loader {
  display: flex;
  gap: 4px;
  align-items: center;
  padding: 6px 12px;
  align-self: flex-start;
}

.ai-typing-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-cyan);
  animation: typingPulse 1.2s infinite ease-in-out;
}

.ai-typing-dot:nth-child(2) {
  animation-delay: 0.2s;
}

.ai-typing-dot:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes typingPulse {
  0%, 100% { transform: translateY(0); opacity: 0.4; }
  50% { transform: translateY(-4px); opacity: 1; }
}

/* Empty State Helpers */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  height: 100%;
  padding: 40px 24px;
  color: var(--text-secondary);
  gap: 16px;
}

.empty-icon {
  font-size: 32px;
  opacity: 0.6;
}

/* ==========================================================================
   SETTINGS MODAL & INPUT FORMS
   ========================================================================== */
.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(6, 8, 14, 0.7);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
}

.modal-overlay.visible {
  display: flex;
}

.modal-card {
  width: 480px;
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--glass-glow), 0 0 40px rgba(186, 104, 200, 0.1);
  overflow: hidden;
  animation: modalSlideIn 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

@keyframes modalSlideIn {
  from { transform: translateY(30px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--glass-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-title {
  font-family: 'Outfit', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
}

.btn-close-modal {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

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

.modal-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-label {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-input {
  width: 100%;
  padding: 10px 14px;
  border-radius: var(--border-radius-md);
  background: var(--bg-tertiary);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 13px;
  transition: var(--transition-fast);
}

.form-input:focus {
  outline: none;
  border-color: var(--accent-purple);
}

.form-desc {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.4;
}

.form-desc a {
  color: var(--accent-cyan);
  text-decoration: none;
}

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--glass-border);
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  background: rgba(14, 18, 28, 0.2);
}

.btn-modal {
  padding: 10px 20px;
  border-radius: var(--border-radius-md);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-modal.secondary {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--glass-border);
}

.btn-modal.secondary:hover {
  background: rgba(255, 255, 255, 0.05);
}

.btn-modal.primary {
  background: var(--grad-primary);
  border: none;
  color: var(--bg-primary);
}

.btn-modal.primary:hover {
  background: var(--grad-hover);
  box-shadow: 0 0 15px rgba(0, 229, 255, 0.3);
}

/* Toast Notification */
.toast-container {
  position: absolute;
  top: 20px;
  right: 20px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  background: rgba(14, 18, 28, 0.9);
  backdrop-filter: blur(10px);
  border: 1px solid var(--accent-cyan);
  border-radius: var(--border-radius-md);
  padding: 12px 18px;
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 600;
  box-shadow: 0 4px 20px rgba(0, 229, 255, 0.15);
  display: flex;
  align-items: center;
  gap: 10px;
  animation: toastSlideIn 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes toastSlideIn {
  from { transform: translateX(50px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Responsive Overrides */
@media (max-width: 1100px) {
  .app-container {
    grid-template-columns: var(--sidebar-width) 1fr;
  }
  .main-content-pane {
    grid-template-columns: 1fr;
  }
  .ai-panel {
    display: none; /* Collapsed under mobile/tablet */
  }
}

/* ==========================================================================
   PERSONAL FEED PREMIUM UPGRADE - ADDITIONS & IMPROVEMENTS
   ========================================================================== */

/* 1. Sidebar Search Panel & Primary Add Button */
.sidebar-search-container {
  padding: 12px 12px 0 12px;
}

.sidebar-search-container .search-input {
  background: var(--bg-tertiary);
  border-color: var(--glass-border);
  font-size: 12px;
  height: 36px;
}

.sidebar-search-container .search-input:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.15);
}

.sidebar-search-container .search-icon {
  font-size: 12px;
  left: 14px;
}

.btn-primary-add-feed {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  height: 38px;
  margin-top: 10px;
  background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
  color: var(--text-primary);
  border: none;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 12px rgba(168, 85, 247, 0.2);
}

.btn-primary-add-feed:hover {
  transform: translateY(-1.5px);
  box-shadow: 0 6px 18px rgba(168, 85, 247, 0.35);
  filter: brightness(1.08);
}

.btn-primary-add-feed:active {
  transform: translateY(0.5px);
}

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

/* 2. Backup & Restore Utility Rows */
.backup-actions-row {
  display: flex;
  gap: 8px;
  width: 100%;
  margin-top: 8px;
  padding: 0 4px;
}

.btn-backup-item {
  flex: 1;
  padding: 8px;
  border-radius: var(--border-radius-md);
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--glass-border);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  transition: var(--transition-smooth);
}

.btn-backup-item:hover {
  color: var(--text-primary);
  background: var(--glass-bg-hover);
  border-color: var(--accent-purple);
}

/* 3. Visual Platform Selector Cards */
.platform-cards-row {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  margin-top: 6px;
}

.platform-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 12px 6px;
  background: var(--bg-tertiary);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-md);
  cursor: pointer;
  transition: var(--transition-smooth);
  color: var(--text-secondary);
  outline: none;
}

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

.platform-card .platform-icon {
  font-size: 20px;
  margin-bottom: 6px;
  transition: var(--transition-fast);
}

.platform-card .platform-name {
  font-size: 10px;
  font-weight: 700;
  text-align: center;
}

/* Platform-specific dynamic glow aesthetics */
.platform-card[data-platform="rss"].active,
.platform-card[data-platform="rss"]:hover {
  border-color: var(--accent-purple);
  box-shadow: 0 0 12px var(--accent-purple-glow);
  color: var(--text-primary);
}

.platform-card[data-platform="telegram"].active,
.platform-card[data-platform="telegram"]:hover {
  border-color: #24A1DE;
  box-shadow: 0 0 12px rgba(36, 161, 222, 0.25);
  color: var(--text-primary);
}

.platform-card[data-platform="youtube"].active,
.platform-card[data-platform="youtube"]:hover {
  border-color: #FF0000;
  box-shadow: 0 0 12px rgba(255, 0, 0, 0.25);
  color: var(--text-primary);
}

.platform-card[data-platform="instagram"].active,
.platform-card[data-platform="instagram"]:hover {
  border-color: #E1306C;
  box-shadow: 0 0 12px rgba(225, 48, 108, 0.25);
  color: var(--text-primary);
}

.platform-card[data-platform="twitter"].active,
.platform-card[data-platform="twitter"]:hover {
  border-color: #1DA1F2;
  box-shadow: 0 0 12px rgba(29, 161, 242, 0.25);
  color: var(--text-primary);
}

.platform-card.active .platform-icon {
  transform: scale(1.15);
}

/* Form Helper split groups */
.form-group-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 10px;
}

/* 4. Collapsible Folders in Sidebar */
.folder-container {
  display: flex;
  flex-direction: column;
  margin-bottom: 6px;
  border-radius: var(--border-radius-md);
  background: rgba(255, 255, 255, 0.01);
  border: 1px solid rgba(255, 255, 255, 0.02);
  overflow: hidden;
}

.folder-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  border-radius: var(--border-radius-md);
  transition: var(--transition-fast);
}

.folder-header-row:hover {
  background: var(--glass-bg-hover);
}

.folder-toggle-title-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  flex-grow: 1;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
}

.folder-toggle-title-wrap:hover {
  color: var(--text-primary);
}

.btn-folder-toggle {
  font-size: 8px;
  color: var(--text-muted);
  transition: transform 0.2s ease;
  display: inline-block;
  width: 10px;
  text-align: center;
}

.folder-container.collapsed .btn-folder-toggle {
  transform: rotate(-90deg);
}

.folder-icon-emoji {
  font-size: 14px;
}

.folder-title-text {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 130px;
}

.folder-meta-actions {
  display: flex;
  align-items: center;
  gap: 4px;
}

.folder-unread-badge {
  font-size: 10px;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 10px;
  background: var(--bg-tertiary);
  color: var(--text-muted);
}

.folder-unread-badge.has-unread {
  background: var(--accent-purple-glow);
  color: var(--accent-purple);
  border: 1px solid rgba(186, 104, 200, 0.15);
}

.folder-action-btn,
.feed-action-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 10px;
  cursor: pointer;
  padding: 2px;
  border-radius: 4px;
  opacity: 0;
  transition: var(--transition-fast);
}

.folder-header-row:hover .folder-action-btn,
.folder-feed-item:hover .feed-action-btn {
  opacity: 0.6;
}

.folder-action-btn:hover,
.feed-action-btn:hover {
  opacity: 1;
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.folder-feeds-list {
  list-style: none;
  padding-left: 18px;
  border-left: 1px dashed var(--glass-border);
  margin-left: 15px;
  margin-bottom: 6px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  transition: max-height 0.3s ease, opacity 0.3s ease;
  max-height: 500px;
  opacity: 1;
}

.folder-container.collapsed .folder-feeds-list {
  max-height: 0;
  opacity: 0;
  margin-bottom: 0;
  pointer-events: none;
  overflow: hidden;
}

.folder-feed-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 8px;
  border-radius: var(--border-radius-sm);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 12px;
  transition: var(--transition-fast);
  cursor: pointer;
}

.folder-feed-item:hover,
.folder-feed-item.active {
  color: var(--text-primary);
  background: var(--glass-bg-hover);
}

.folder-feed-item.active {
  border-left: 2px solid var(--accent-cyan);
  padding-left: 6px;
}

.folder-feed-left {
  display: flex;
  align-items: center;
  gap: 8px;
  overflow: hidden;
}

.folder-feed-icon {
  font-size: 12px;
  flex-shrink: 0;
}

.folder-feed-title {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 120px;
}

.folder-feed-badge {
  font-size: 9px;
  font-weight: 700;
  color: var(--text-muted);
}

.folder-feed-badge.has-unread {
  color: var(--accent-cyan);
}

/* Unsorted & General feeds lists inside section */
.sidebar-section-empty {
  padding: 12px;
  font-size: 11px;
  color: var(--text-muted);
  text-align: center;
  border: 1px dashed var(--glass-border);
  border-radius: var(--border-radius-md);
  margin: 6px 0;
}

/* 5. Home Dashboard View Styles */
.dashboard-panel {
  width: 100%;
  height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg-primary);
  overflow: hidden;
}

.dashboard-scroll {
  flex-grow: 1;
  overflow-y: auto;
  padding: 30px 40px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.dashboard-welcome {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.welcome-title {
  font-family: 'Outfit', sans-serif;
  font-size: 28px;
  font-weight: 800;
  background: var(--grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.welcome-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
}

/* Statistics Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.stat-card {
  background: var(--glass-bg);
  backdrop-filter: var(--panel-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-lg);
  padding: 20px;
  cursor: pointer;
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.stat-card:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
  transform: translateY(-3px);
  box-shadow: var(--glass-glow);
}

.stat-icon {
  font-size: 22px;
}

.stat-value {
  font-family: 'Outfit', sans-serif;
  font-size: 28px;
  font-weight: 800;
  color: var(--text-primary);
}

.stat-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Dashboard Widgets Split Layout */
.dashboard-widgets-row {
  display: flex;
  gap: 16px;
}

.dashboard-widget {
  background: var(--glass-bg);
  backdrop-filter: var(--panel-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.dashboard-widget.flex-1 {
  flex: 1;
}

.dashboard-widget.flex-2 {
  flex: 2;
}

.dashboard-widget h3 {
  font-family: 'Outfit', sans-serif;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  border-bottom: 1px dashed var(--glass-border);
  padding-bottom: 8px;
}

/* Tag Cloud Widget */
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tag-cloud .tag-pill {
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-tertiary);
  border: 1px solid var(--glass-border);
  cursor: pointer;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 4px;
}

.tag-cloud .tag-pill:hover {
  background: var(--glass-bg-hover);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.tag-cloud .tag-pill .tag-count {
  font-size: 9px;
  font-weight: 700;
  padding: 1px 5px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-muted);
}

.tag-cloud .empty-desc {
  font-size: 12px;
  color: var(--text-muted);
  font-style: italic;
}

/* Platform Subscriptions Breakdown */
.channels-breakdown-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.breakdown-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
}

.breakdown-label {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
}

.breakdown-color-bar {
  width: 60px;
  height: 6px;
  border-radius: 3px;
  background: var(--bg-tertiary);
  overflow: hidden;
  position: relative;
}

.breakdown-fill {
  height: 100%;
  border-radius: 3px;
  position: absolute;
  left: 0;
  top: 0;
}

.breakdown-count {
  font-weight: 700;
  color: var(--text-primary);
  width: 20px;
  text-align: right;
}

/* Quick Hub Actions Row */
.quick-actions-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.btn-quick-act {
  padding: 12px;
  border-radius: var(--border-radius-md);
  font-size: 12px;
  font-weight: 700;
  color: var(--text-primary);
  background: var(--bg-tertiary);
  border: 1px solid var(--glass-border);
  cursor: pointer;
  transition: var(--transition-smooth);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.btn-quick-act:hover {
  background: var(--glass-bg-hover);
  border-color: var(--accent-cyan);
  box-shadow: 0 4px 12px var(--accent-cyan-glow);
  transform: translateY(-2px);
}

/* Header sort select styles */
.sort-select {
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  border-radius: var(--border-radius-sm);
  padding: 4px 8px;
  font-size: 11px;
  font-weight: 600;
  font-family: inherit;
  outline: none;
  cursor: pointer;
  transition: var(--transition-fast);
}

.sort-select:hover,
.sort-select:focus {
  color: var(--text-primary);
  border-color: var(--accent-purple);
}

/* Reader distraction free adjustments */
.reader-panel .pane-header {
  border-bottom: 1px solid var(--glass-border);
}

.reader-panel .card-action-btn:hover {
  background: var(--bg-tertiary);
}

/* ==========================================================================
   PREMIUM FEATURES & LAYOUT VIEWS (CARDS, COMPACT LIST, MAGAZINE)
   ========================================================================== */

/* Sync Spinner & Buttons */
.btn-sidebar-refresh.loading {
  animation: spin 1s linear infinite;
  pointer-events: none;
  opacity: 0.7;
}

/* Sidebar batch mark-as-read checkmarks */
.btn-mark-read-folder, .btn-mark-read-feed {
  opacity: 0;
  transition: opacity 0.2s ease, transform 0.2s ease;
  font-size: 10px;
  padding: 2px 5px;
  border-radius: 4px;
  background: rgba(0, 229, 255, 0.1) !important;
  color: var(--accent-cyan) !important;
  border: 1px solid rgba(0, 229, 255, 0.2) !important;
  cursor: pointer;
  margin-right: 2px;
}

.folder-header-row:hover .btn-mark-read-folder,
.folder-feed-item:hover .btn-mark-read-feed,
.nav-list li:hover .btn-mark-read-feed {
  opacity: 1;
}

.btn-mark-read-folder:hover, .btn-mark-read-feed:hover {
  background: rgba(0, 229, 255, 0.25) !important;
  transform: scale(1.1);
}

/* Weekly Reading Activity Chart */
.activity-chart-container {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 4px 0;
}

.chart-bars-outer {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  height: 90px;
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.015);
  border-radius: 8px;
  border: 1px solid var(--glass-border);
  gap: 6px;
}

.chart-bar-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  flex: 1;
  height: 100%;
  justify-content: flex-end;
}

.chart-bar {
  width: 100%;
  max-width: 22px;
  background: linear-gradient(180deg, var(--accent-cyan) 0%, rgba(0, 229, 255, 0.15) 100%);
  border-radius: 4px 4px 0 0;
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.15);
  transition: height 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  cursor: pointer;
}

.chart-bar:hover {
  background: linear-gradient(180deg, var(--accent-purple) 0%, rgba(186, 104, 200, 0.15) 100%);
  box-shadow: 0 0 14px rgba(186, 104, 200, 0.4);
}

.chart-label {
  font-size: 8px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
}

/* Insights Summary Grid */
.insights-summary-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 6px;
  border-top: 1px dashed var(--glass-border);
  padding-top: 12px;
}

.insight-item {
  background: rgba(255, 255, 255, 0.01);
  border: 1px solid var(--glass-border);
  padding: 8px 10px;
  border-radius: 6px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  text-align: center;
}

.insight-label {
  font-size: 8px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.insight-value {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-primary);
}

/* Hot Topics & Trend Tracker */
.trends-list-container {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 140px;
  overflow-y: auto;
  padding-right: 4px;
}

.trend-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.015);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.trend-item:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
  transform: translateX(4px);
}

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

.trend-rank {
  font-family: 'Outfit', sans-serif;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  width: 14px;
}

.trend-name {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-primary);
}

.trend-indicator {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 9px;
  font-weight: 700;
  color: var(--accent-green);
  background: rgba(0, 230, 118, 0.1);
  padding: 2px 6px;
  border-radius: 12px;
}

.trend-indicator.trend-up {
  color: var(--accent-cyan);
  background: rgba(0, 229, 255, 0.1);
}

/* --- DYNAMIC STREAM VIEW MODES --- */

/* 1. Compact List View */
.feed-stream.view-list {
  gap: 4px;
  padding: 8px;
}

.feed-stream.view-list .feed-card {
  padding: 8px 12px;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.03);
}

.feed-stream.view-list .feed-card:hover {
  transform: none;
  box-shadow: none;
  background: var(--glass-bg-hover);
}

.feed-stream.view-list .feed-card .card-header-meta {
  order: 2;
  flex-shrink: 0;
  gap: 8px;
  margin-top: 0;
  display: flex;
  align-items: center;
}

.feed-stream.view-list .feed-card .card-title {
  order: 1;
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
  display: block;
  flex-grow: 1;
  line-height: 1.2;
}

.feed-stream.view-list .feed-card .card-snippet,
.feed-stream.view-list .feed-card .card-image,
.feed-stream.view-list .feed-card .telegram-avatar,
.feed-stream.view-list .feed-card .youtube-thumbnail,
.feed-stream.view-list .feed-card .telegram-metrics,
.feed-stream.view-list .feed-card .youtube-metrics,
.feed-stream.view-list .feed-card .card-tags-row,
.feed-stream.view-list .feed-card .card-header-meta .card-source,
.feed-stream.view-list .feed-card .telegram-name-container {
  display: none !important;
}

.feed-stream.view-list .feed-card.unread::before {
  top: 50%;
  right: auto;
  left: 4px;
  transform: translateY(-50%);
  width: 5px;
  height: 5px;
}

/* 2. Magazine Layout (Editorial Grid) */
.feed-stream.view-magazine {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  padding: 16px;
}

.feed-stream.view-magazine .feed-card {
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-top: 4px solid var(--accent-purple);
  padding: 16px;
  border-radius: var(--border-radius-lg);
  background: var(--glass-bg);
}

.feed-stream.view-magazine .feed-card.platform-telegram {
  border-top-color: #24A1DE;
}

.feed-stream.view-magazine .feed-card.platform-youtube {
  border-top-color: #FF0000;
}

.feed-stream.view-magazine .feed-card.platform-instagram {
  border-top-color: #E1306C;
}

.feed-stream.view-magazine .feed-card.platform-twitter {
  border-top-color: #1DA1F2;
}